JP6320777B2 - Dehumidification system - Google Patents

Description

  The present invention relates to a dehumidification system that supplies heated air to a dehumidifying mechanism and regenerates the dehumidifying function of a dehumidifying agent, and supplies dehumidified air produced using the dehumidifying mechanism to a dehumidified air-conditioned space.

  A desiccant rotor that dehumidifies the air that passes through the adsorbent while containing the adsorbent, an air heater that supplies the desiccant rotor with heated air that regenerates the adsorption function of the adsorbent using a heat pump, An auxiliary heater that is disposed between the desiccant rotor and the air heater and that heats the heated air, and an external air cooler and a precooler that lower the temperature of the air that flows into the desiccant rotor, the air heater and the auxiliary heater, A dehumidifying device for supplying dehumidified air at a predetermined temperature to a dehumidifying air-conditioning space, which is made by using the desiccant rotor, while regenerating the adsorption function of the adsorbent by supplying heated air heated by the desiccant rotor to the desiccant rotor is disclosed. (See Patent Document 1).

  In this dehumidifying apparatus, a condenser of a heat pump is used as an air heater, and an evaporator of a heat pump is used as an outside air cooler and a precooler. In the dehumidifier, the outside air is heated to a predetermined temperature using a heat pump condenser, the heated air heated is supplied to the desiccant rotor, and the outside air is cooled by an outside air cooler and a precooler using the evaporator of the heat pump. And the cooled outside air is supplied to the desiccant rotor.

JP 2011-125826 A

  In the dehumidifying device disclosed in Patent Document 1, in order to heat the outside air to a predetermined temperature, the heating amount of the air heater using the condenser of the heat pump and the cooling amount of the outside air cooler and the precooler using the evaporator of the heat pump Need to be approximately equivalent. In summer when the temperature of the outside air is high, the heating amount of the air heater can be made substantially equal to the cooling amount of the outside air cooler and the precooler, and the outside air is heated to heated air at a predetermined temperature using the air heater. can do. However, in winter when the temperature of the outside air is low and it is not necessary to cool the outside air using an outside air cooler and a precooler, the heating amount of the air heater and the amount of cooling of the outside air cooler and the precooler become imbalanced. In some cases, the temperature of the outside air cannot be sufficiently increased using the air heater, and the adsorption function of the adsorbent accommodated in the desiccant rotor cannot be regenerated. In addition, in this dehumidifier, since the heating air for regeneration that has flowed through the desiccant rotor is released to the outside air, the exchange heat of the heating air for regeneration is wasted and the exchange heat can be reused. The exchange heat cannot be used for heating the air in the air heater.

  An object of the present invention is to provide a dehumidification system that can reuse the exchange heat of the heated air that regenerates the dehumidification function of the dehumidification mechanism, and can use the exchange heat for stable operation of the heat pump. . Another object of the present invention is to sufficiently heat the air supplied to the dehumidifying mechanism by performing stable operation of the heat pump in the winter when the temperature of the outside air is low, and the dehumidifying mechanism is utilized by using the heated air. An object of the present invention is to provide a dehumidifying system capable of regenerating the dehumidifying function.

  The premise of the present invention for solving the above problems is that the dehumidification processing zone for generating dehumidified air, the dehumidification function regeneration zone for regenerating the dehumidification function, and the dehumidification treatment zone and dehumidification function regeneration zone having a dehumidifying agent are disposed. A dehumidifying mechanism and a first heat exchange mechanism that is disposed in the dehumidifying function regeneration zone upstream of the dehumidifying mechanism and heats the air supplied to the dehumidifying mechanism using a heat pump, and is predetermined by the first heat exchanging mechanism. The heated air heated to the temperature is supplied to the dehumidifying mechanism located in the dehumidifying function regeneration zone to regenerate the dehumidifying function of the dehumidifying agent, and the dehumidified air produced using the dehumidifying mechanism located in the dehumidifying treatment zone is used. This is a dehumidification system that supplies air to the dehumidified air-conditioned space.

The first feature of the dehumidifying system of the present invention based on the above premise is that the dehumidifying system is disposed on the downstream side of the dehumidifying mechanism located in the dehumidifying function regeneration zone, and the dehumidifying mechanism located in the dehumidifying treatment zone. And a third heat exchange mechanism for lowering the temperature of the air supplied to the dehumidifying mechanism of the dehumidifying treatment zone, and a dehumidifying mechanism located at the downstream side of the dehumidifying mechanism located in the dehumidifying treatment zone. A fourth heat exchange mechanism that lowers the temperature of the dehumidified air produced by the mechanism, a heater that heats the heated air heated to a predetermined temperature by the first heat exchange mechanism, and a space between the first heat exchange mechanism and the heater. A first temperature sensor that is installed in the dehumidification function regeneration zone and measures the temperature of the heated air that is supplied to the dehumidification mechanism of the dehumidification function regeneration zone, and a dehumidification mechanism and a third heat exchange mechanism that are located in the dehumidification treatment zone Installed between the second temperature sensor for measuring the temperature of the air supplied to the dehumidifying mechanism of the dehumidifying treatment zone and the downstream side of the fourth heat exchanging mechanism, and the temperature is lowered by the fourth heat exchanging mechanism. And a third temperature sensor that measures the temperature of the dehumidified air. In the dehumidification system, the second heat exchange mechanism regenerates the dehumidification function using the refrigerant supplied from the heat exchanger that exchanges heat with the first heat exchange mechanism. The exchange heat of the heated air flowing through the dehumidifying mechanism of the zone is recovered, and the exchange heat recovered by the second heat exchange mechanism is supplied from the second heat exchange mechanism to the heat exchanger using the refrigerant, and the exchange heat Is used for heating the air in the first heat exchange mechanism, the cold heat generated by the heat exchanger is supplied from the heat exchanger to the third heat exchange mechanism using the refrigerant, and the cold heat is supplied to the third heat exchange mechanism. Used for air cooling and in the third heat exchange mechanism Then, the exchange heat recovered from the air is supplied from the third heat exchange mechanism to the heat exchanger using the refrigerant, and the exchange heat is used for heating the air in the first heat exchange mechanism. The produced cold heat is supplied from the heat exchanger to the fourth heat exchange mechanism using the refrigerant, and the cold heat is used for cooling the dehumidified air in the fourth heat exchange mechanism, and from the dehumidified air by the fourth heat exchange mechanism. The recovered exchange heat is supplied from the fourth heat exchange mechanism to the heat exchanger using the refrigerant, and the exchange heat is used for heating the air in the first heat exchange mechanism. When the first measured temperature of the measured heated air falls below the first set temperature range, the heater operating means for operating the heater when the heater is not operating, the heat quantity increasing means for increasing the heat quantity of the operating heater, and the heat pump of When the first measured temperature of the heated air measured by the first temperature sensor exceeds the first set temperature range, at least one of the work increasing means for increasing the work is performed, and the heater in operation is At least one of a heater stop means for stopping, a heat amount reducing means for reducing the heat amount of the heater in operation, and a work amount reducing means for reducing the work amount of the heat pump is implemented, and the air temperature measured by the second temperature sensor is implemented. An inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the third heat exchange mechanism is implemented so that the second measured temperature falls within the range of the second set temperature, and the second air measured by the second temperature sensor is used. When the measured temperature is lower than the second set temperature, or when the second measured temperature of the air measured by the second temperature sensor can be maintained within the range of the second set temperature, the refrigerant flowing into the third heat exchange mechanism Reduce inflow And the third measured temperature of the dehumidified air measured by the third temperature sensor is set to the third setting while either one of the inflow amount reducing unit to be performed or the inflow stopping unit for stopping the inflow of the refrigerant to the third heat exchange mechanism is implemented. The inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism so as to fall within the temperature range is implemented, and the third measured temperature of the dehumidified air measured by the third temperature sensor is the third set temperature. Or when the third measured temperature of the dehumidified air measured by the third temperature sensor can be maintained within the third set temperature range, the inflow that reduces the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism One of the amount reducing means and the inflow stopping means for stopping the inflow of the refrigerant to the fourth heat exchange mechanism is to be implemented .

The second feature of the dehumidifying system of the present invention based on the above premise is that the dehumidifying system is disposed on the downstream side of the dehumidifying mechanism located in the dehumidifying function regeneration zone, and the first heat exchanging mechanism and the heat exchanging mechanism. A heat recovery heat pump for exchanging heat with respect to the heat exchanger for performing the dehumidification, and disposed upstream of the dehumidification mechanism located in the dehumidification treatment zone to reduce the temperature of the air supplied to the dehumidification mechanism in the dehumidification treatment zone A third heat exchanging mechanism, a fourth heat exchanging mechanism that is disposed downstream of the dehumidifying mechanism located in the dehumidifying treatment zone, and lowers the temperature of the dehumidified air produced by the dehumidifying mechanism of the dehumidifying treatment zone; and the first heat exchanging mechanism Installed in a dehumidifying function regeneration zone between the first heat exchanging mechanism and the heater, and heated to supply the dehumidifying mechanism in the dehumidifying function regeneration zone. A second temperature for measuring the temperature of the air supplied to the dehumidifying mechanism in the dehumidifying zone, which is installed between the first temperature sensor for measuring the temperature, the dehumidifying mechanism located in the dehumidifying zone and the third heat exchange mechanism A sensor and a third temperature sensor that is installed downstream of the fourth heat exchange mechanism and measures the temperature of the dehumidified air whose temperature has been lowered by the fourth heat exchange mechanism. In the dehumidification system, the second heat exchange mechanism includes Using the refrigerant supplied from the heat recovery type heat pump, the exchange heat of the heated air that has flowed through the dehumidification mechanism of the dehumidification function regeneration zone is collected, and the exchange heat collected by the second heat exchange mechanism is collected using the refrigerant. The heat recovery type heat pump is supplied from the second heat exchange mechanism, the exchange heat is used for heating the air in the first heat exchange mechanism, and the cold generated by the heat recovery type heat pump is used as a heat recovery type heat pump. To the second The heat is supplied to the heat exchange mechanism, and the cold heat is used for cooling the air in the third heat exchange mechanism, and the exchange heat recovered from the air by the third heat exchange mechanism is used as heat from the third heat exchange mechanism using the refrigerant. The heat is supplied to the recovery heat pump, the exchange heat is used for heating the air in the first heat exchange mechanism, and the heat generated by the heat recovery heat pump is used for the fourth heat exchange from the heat recovery heat pump using the refrigerant. The cooling heat is supplied to the mechanism and used for cooling the dehumidified air in the fourth heat exchange mechanism, and the exchange heat recovered from the dehumidified air by the fourth heat exchange mechanism is used as heat from the fourth heat exchange mechanism using the refrigerant. The dehumidification system supplies the heat to the recovery heat pump and uses the exchange heat for heating the air in the first heat exchange mechanism. The dehumidification system uses the first measured temperature of the heated air measured by the first temperature sensor within the range of the first set temperature. Less than the range, at least one of a heater operating means for operating the heater when the heater is not operating, a heat amount increasing means for increasing the amount of heat of the operating heater, and a work amount increasing means for increasing the work amount of the heat pump. If the first measured temperature of the heated air measured by the first temperature sensor exceeds the first set temperature range, the heater stop means for stopping the operating heater and the amount of heat of the operating heater are reduced. At least one of the heat amount reducing means to be reduced and the work amount reducing means to reduce the work amount of the heat pump, and the second measured temperature of the air measured by the second temperature sensor falls within the range of the second set temperature. Thus, the inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the third heat exchange mechanism is implemented, and the second measured temperature of the air measured by the second temperature sensor is the second set temperature. Or when the second measured temperature of the air measured by the second temperature sensor can be maintained within the range of the second set temperature, the inflow amount that reduces the inflow amount of the refrigerant flowing into the third heat exchange mechanism One of the reducing means and the inflow stopping means for stopping the inflow of the refrigerant to the third heat exchange mechanism is implemented, and the third measured temperature of the dehumidified air measured by the third temperature sensor is in the range of the third set temperature. When the inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism so as to enter the inside is implemented, and the third measured temperature of the dehumidified air measured by the third temperature sensor is lower than the third set temperature Or when the third measured temperature of the dehumidified air measured by the third temperature sensor can be maintained within the range of the third set temperature, the inflow amount reducing means for reducing the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism. And refrigerant flow to the fourth heat exchange mechanism The it is to implement either the inflow stopping means for stopping.

As an example of the dehumidifying system of the present invention having the first and second features, the dehumidifying system includes an external air conditioner installed between the dehumidifying mechanism located in the dehumidifying treatment zone and the third heat exchange mechanism, The external air conditioner dehumidifies the air supplied to the dehumidifying mechanism of the dehumidifying treatment zone and adjusts the temperature of the air.

As another example of the dehumidifying system of the present invention having the first and second features, the refrigerant is water or brine.

  According to the dehumidification system of the present invention having the first feature, the second heat exchange mechanism recovers the exchange heat of the heated air that has passed through the dehumidification mechanism of the dehumidification function regeneration zone using the refrigerant, and the second heat exchange The exchange heat recovered by the mechanism is supplied from the second heat exchange mechanism to the heat exchanger using the refrigerant, and heat exchange is performed between the first heat exchange mechanism and the heat exchanger using the heat pump. Since the exchange heat of the heated air is used for heating the air in the first heat exchange mechanism, the exhaust heat of the heated air used for the regeneration of the dehumidification function of the dehumidification mechanism is not wasted and exhausted. Exchange heat recovered from the air can be reused as a heat pump refrigerant using a heat exchanger. Since the dehumidification system can transmit the exchange heat from the heat exchanger to the first heat exchange mechanism using the refrigerant that has received the exchange heat of the exhaust heat of the heated air, the heat pump of the first heat exchange mechanism is stabilized. Can drive. Moreover, compared with the case where the exhaust heat recovered from the remaining exhaust air of the heated air used for regeneration of the dehumidification function is not used, the air supplied to the dehumidification mechanism can be sufficiently heated in the first heat exchange mechanism. it can. Since the dehumidification system uses the exchange heat of heated air for heating the air in the first heat exchange mechanism, the heat pump can be stably operated even in winter when the temperature of the outside air is low. The supplied air can be sufficiently heated, and the dehumidifying function of the dehumidifying mechanism can be reliably regenerated using the heated air.

The dehumidification system includes a third heat exchange mechanism that is disposed on the upstream side of the dehumidification mechanism located in the dehumidification processing zone and reduces the temperature of the air supplied to the dehumidification mechanism, and cools the heat generated by the heat exchanger with the refrigerant. The heat is supplied from the heat exchanger to the third heat exchange mechanism, the cold heat is used for cooling the air in the third heat exchange mechanism, and the third heat exchange is performed with the air supplied to the dehumidification mechanism located in the dehumidification processing zone. Since the air supplied to the dehumidifying mechanism can be cooled by exchanging heat with the mechanism, the air cooled by the third heat exchanging mechanism can be supplied to the dehumidifying mechanism of the dehumidifying treatment zone. In addition, dehumidified air whose temperature is lowered in the dehumidifying mechanism can be easily produced. In addition, there exists an effect which raises relative humidity and raises the dehumidification function of a dehumidification mechanism by lowering | hanging temperature in the middle of a season with the cooling function of a 3rd heat exchange mechanism. In the dehumidification system, exchange heat recovered from the air supplied to the dehumidification mechanism of the dehumidification processing zone is supplied from the third heat exchange mechanism to the heat exchanger using the refrigerant, and the first heat exchange mechanism, the heat exchanger, Since the heat exchange is performed between the air, the exchange heat of the air supplied to the dehumidification mechanism is used for heating the air in the first heat exchange mechanism, so the exchange of the air supplied to the dehumidification mechanism of the dehumidification processing zone Heat can be reused, and the air supplied to the dehumidifying mechanism of the dehumidifying function regeneration zone can be sufficiently heated in the first heat exchange mechanism. In the dehumidification system, a circulation circuit of exchange heat and cold heat is formed between the first to third heat exchange mechanisms, and the exchange heat and cold heat are circulated through the circuit using a refrigerant, so that the exchange heat and cold heat are effective. It can be used and energy saving of the system and stable operation of the heat pump can be realized.

The dehumidification system includes a fourth heat exchange mechanism that is arranged on the downstream side of the dehumidification mechanism located in the dehumidification treatment zone and reduces the temperature of the dehumidified air, and uses the refrigerant to exchange heat with the cold generated by the heat exchanger. Is supplied to the fourth heat exchange mechanism, and the cold heat is used to cool the dehumidified air in the fourth heat exchange mechanism, and the dehumidified air flowing through the dehumidification mechanism located in the dehumidification treatment zone and the fourth heat exchange mechanism Since the dehumidified air can be cooled by exchanging heat between them, the dehumidified air whose temperature has been lowered by the fourth heat exchange mechanism can be supplied to the dehumidified air-conditioned space, and the dehumidified air is dehumidified by the dehumidified air. Can be made lower than the heated air temperature immediately after flowing through the dehumidifying mechanism. In the dehumidification system, the exchange heat recovered from the dehumidified air flowing through the dehumidification mechanism in the dehumidification treatment zone is supplied from the fourth heat exchange mechanism to the heat exchanger using the refrigerant, and the first heat exchange mechanism and the heat exchanger Since the heat exchange is performed between the dehumidified air and the heat exchanged by the first heat exchange mechanism, the heat of the dehumidified air flowing through the dehumidifying mechanism in the dehumidifying zone is reused. The air supplied to the dehumidifying mechanism in the dehumidifying function regeneration zone can be sufficiently heated in the first heat exchange mechanism. In the dehumidifying system, a circulation circuit for exchange heat and cold heat is formed between the first to fourth heat exchange mechanisms, and the heat is effectively utilized by circulating the exchange heat and cold heat to the circuit using a refrigerant. Thus, energy saving of the system and stable operation of the heat pump can be realized.

  According to the dehumidification system of the present invention having the second feature, the second heat exchange mechanism recovers the exchange heat of the heated air that has passed through the dehumidification mechanism of the dehumidification function regeneration zone using the refrigerant, and the second heat exchange The exchange heat recovered by the mechanism is supplied from the second heat exchange mechanism to the heat recovery type heat pump using the refrigerant, heat exchange is performed between the heat exchanger and the heat recovery type heat pump, and the heat pump is used. Since heat exchange is performed between the first heat exchange mechanism and the heat exchanger, the exchange heat of the heated air is used for heating the air in the first heat exchange mechanism. Therefore, the exhaust heat of the heated air used for this purpose is not wasted, and the exchange heat recovered from the exhaust air can be reused as the refrigerant of the heat pump using the heat exchanger. The dehumidification system can transfer the exchange heat from the heat recovery heat pump to the heat exchanger using the refrigerant that has received the exchange heat of the exhaust heat of the heated air, and the exchange heat can be transferred from the heat exchanger to the first heat. Since it can be transmitted to the exchange mechanism, the heat pump of the first heat exchange mechanism can be stably operated. Moreover, compared with the case where the exhaust heat recovered from the remaining exhaust air of the heated air used for regeneration of the dehumidification function is not used, the air supplied to the dehumidification mechanism can be sufficiently heated in the first heat exchange mechanism. it can. The dehumidification system can efficiently transfer heat from a low temperature range to a high temperature range by a heat recovery type heat pump, and at the same time, the cooling function of the refrigerant is improved. Therefore, in addition to the first heat exchange mechanism using the heat pump, heat recovery By using the mold heat pump, heated air at a predetermined temperature can be reliably produced, and cold enough to cool the air can be supplied to the second heat exchange mechanism. Since the dehumidification system uses the exchange heat of heated air for heating the air in the first heat exchange mechanism, the heat pump can be stably operated even in winter when the temperature of the outside air is low. The supplied air can be sufficiently heated, and the dehumidifying function of the dehumidifying mechanism can be reliably regenerated using the heated air.

The dehumidification system includes a third heat exchange mechanism that is disposed upstream of the dehumidification mechanism located in the dehumidification processing zone and reduces the humidity of the air supplied to the dehumidification mechanism, and cools the heat generated by the heat recovery heat pump as a refrigerant. The heat recovery type heat pump is used to supply the third heat exchange mechanism, and the cold heat is used to dehumidify the air in the third heat exchange mechanism, so that the heat exchange is performed between the first heat exchange mechanism and the heat exchanger. And the third heat exchange mechanism and the air supplied to the dehumidification mechanism located in the dehumidification treatment zone using the cold energy after the heat exchange is performed between the heat exchanger and the heat recovery type heat pump. Since the air supplied to the dehumidifying mechanism can be cooled by performing heat exchange between the air, the air cooled by the third heat exchanging mechanism can be supplied to the dehumidifying mechanism of the dehumidifying treatment zone, Easy dehumidification air in the mechanism Rukoto can. In addition, there exists an effect which raises relative humidity and raises the dehumidification function of a dehumidification mechanism by lowering | hanging temperature in the middle of a season with the cooling function of a 3rd heat exchange mechanism. In the dehumidification system, the exchange heat recovered from the air supplied to the dehumidification mechanism in the dehumidification processing zone is supplied from the third heat exchange mechanism to the heat recovery heat pump using the refrigerant, and the heat recovery heat pump, the heat exchanger, The heat exchange is performed between the first heat exchange mechanism and the heat exchanger, so that the heat exchanged between the air supplied to the dehumidification mechanism is reduced by the air exchange in the first heat exchange mechanism. Since it is used for heating, the exchange heat of the air supplied to the dehumidification mechanism of the dehumidification treatment zone can be reused, and the air supplied to the dehumidification mechanism of the dehumidification function regeneration zone can be sufficiently used in the first heat exchange mechanism. Can be heated. In the dehumidification system, a circulation circuit of exchange heat and cold heat is formed between the first to third heat exchange mechanisms and the heat recovery type heat pump, and the exchange heat and cold heat are circulated through the circuit using a refrigerant. Exchange heat and cold heat can be used effectively, and energy saving of the system and stable operation of the heat pump can be realized.

The dehumidifying system includes a fourth heat exchange mechanism that is disposed downstream of the dehumidifying mechanism located in the dehumidifying treatment zone and reduces the temperature of the dehumidified air, and heats the cold generated by the heat recovery heat pump using the refrigerant. Supplying from the recovery heat pump to the fourth heat exchange mechanism, utilizing the cold heat for cooling the dehumidified air in the fourth heat exchange mechanism , heat exchange is performed between the first heat exchange mechanism and the heat exchanger, The dehumidified air that has passed through the dehumidification mechanism located in the dehumidification processing zone using the cold supplied from the heat recovery heat pump after the heat exchange between the heat exchanger and the heat recovery heat pump is performed. Since the dehumidified air can be cooled by exchanging heat with the heat exchange mechanism, the dehumidified air whose temperature has been lowered by the fourth heat exchange mechanism can be supplied to the dehumidified air-conditioned space. Removed by air The dehumidifying mechanism conditioned space than heated air temperature immediately after Tsuryu can be cold. In the dehumidification system, the exchange heat recovered from the dehumidified air flowing through the dehumidification mechanism in the dehumidification processing zone is supplied from the fourth heat exchange mechanism to the heat recovery type heat pump using the refrigerant, and the heat recovery type heat pump and the heat exchanger are supplied. Heat exchange is performed between the first heat exchange mechanism and the heat exchanger, so that the exchange heat of the dehumidified air is used for heating the air in the first heat exchange mechanism. Therefore, the exchange heat of the dehumidified air that has flowed through the dehumidification mechanism in the dehumidification treatment zone can be reused, and the air supplied to the dehumidification mechanism in the dehumidification function regeneration zone can be sufficiently heated in the first heat exchange mechanism. Can do. In the dehumidification system, a circulation circuit of exchange heat and cold heat is formed between the first to fourth heat exchange mechanisms and the heat recovery type heat pump, and the exchange heat and cold heat are circulated through the circuit using a refrigerant. Exchange heat and cold heat can be used effectively, and energy saving of the system and stable operation of the heat pump can be realized.

The dehumidification system includes a heater disposed in a dehumidification function regeneration zone between the first heat exchange mechanism and the dehumidification mechanism, and a first temperature sensor disposed in the dehumidification function regeneration zone between the first heat exchange mechanism and the heater. When the first measured temperature of the heated air measured by the first temperature sensor falls below the first set temperature range, the heater operating means for operating the heater and the heat quantity increasing means for increasing the heat quantity of the operating heater When the first measured temperature of the heated air measured by the first temperature sensor exceeds the first set temperature range, at least one of the work increase means for increasing the work amount of the heat pump is performed. Less of the heater stop means for stopping the heater inside, the heat quantity reduction means for reducing the heat quantity of the heater in operation, and the work reduction means for reducing the work volume of the heat pump Also be implemented one, the exchange heat of heated air even if used to heat the air in the first heat exchange mechanism, if the first measured temperature is below the range of the first set temperature, by using the heater Since at least one of the heater operating means for further heating the heated air heated to a predetermined temperature, the heat amount increasing means for increasing the heat amount of the heater in operation, and the work amount increasing means for increasing the work amount of the heat pump is performed. Even when the amount of heat supplied to the evaporator of the heat pump is low as in the winter when the temperature of the outside air is low, the air supplied to the dehumidifying mechanism can be sufficiently heated, and the temperature of the heated air is set to the first set temperature. The dehumidifying function of the dehumidifying mechanism can be reliably regenerated using the heated air. When the first measured temperature exceeds the range of the first set temperature, the dehumidification system is configured to stop a heater that is operating, a heat amount reducing unit that decreases a heat amount of the operating heater, and a heat pump work amount. Since at least one of the means for reducing the workload is reduced, the system is operated with the heater stopped, or the system is operated with the heater reduced in heat, Power consumption can be saved, and the system can be operated with reduced heat pump work to save heat pump power consumption. A stable operation of the heat pump can be realized.

The dehumidification system includes a second temperature sensor installed between the dehumidification mechanism located in the dehumidification processing zone and the third heat exchange mechanism, and the second measured temperature of the air measured by the second temperature sensor is the second set temperature. The inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the third heat exchange mechanism so as to fall within the range is implemented, and the second measured temperature of the air measured by the second temperature sensor is lower than the second set temperature. Or when the second measured temperature of the air measured by the second temperature sensor can be maintained within the range of the second set temperature, the inflow amount reducing means for reducing the inflow amount of the refrigerant flowing into the third heat exchange mechanism And the inflow stop means for stopping the inflow of the refrigerant to the third heat exchange mechanism, the second measured temperature of the air measured by the second temperature sensor exceeds the range of the second set temperature. Cooling function in the third heat exchange mechanism Although the air that is lowered and supplied to the dehumidifying mechanism cannot be sufficiently cooled, the cooling function of the third heat exchange mechanism is increased by increasing the amount of refrigerant flowing into the third heat exchange mechanism. Therefore, the air is sufficiently cooled by the third heat exchange mechanism, the second measured temperature can be within the range of the second set temperature, and the air whose temperature has been lowered by the third heat exchange mechanism is used as the dehumidifying mechanism. You can supply air. The dehumidification system is used when the second measured temperature of the air measured by the second temperature sensor falls below the second set temperature range in the winter when the air is dried and the temperature and humidity of the air are lowered, or when the second temperature sensor is When the second measured temperature of the measured air can be maintained within the range of the second set temperature, it is not necessary to cool the air using the third heat exchange mechanism, and in that case, the air flows into the third heat exchange mechanism. By reducing the inflow of refrigerant or stopping the inflow of refrigerant to the third heat exchange mechanism and using the cold heat of the refrigerant in other cold heat piping systems, the waste of the refrigerant can be eliminated. Energy saving can be achieved. The dehumidification system uses the cool heat supplied from the heat exchanger or heat recovery heat pump after heat exchange with the first heat exchange mechanism to the minimum necessary, and supplies air to the dehumidification mechanism located in the dehumidification processing zone. Since the air supplied to the dehumidifying mechanism can be cooled by exchanging heat with the third heat exchanging mechanism, the air whose temperature has been lowered by the third heat exchanging mechanism is used as the dehumidifying mechanism in the dehumidifying zone. Air can be supplied, and dehumidified air whose temperature is lowered in the dehumidifying mechanism can be easily produced.

The dehumidifying system includes a third temperature sensor installed on the downstream side of the fourth heat exchange mechanism, and the third measured temperature of the dehumidified air measured by the third temperature sensor is within the range of the third set temperature. 4 When an inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the heat exchange mechanism is implemented and the third measured temperature of the dehumidified air measured by the third temperature sensor is lower than the third set temperature, or the third temperature When the third measured temperature of the dehumidified air measured by the sensor can be maintained within the range of the third set temperature, the inflow amount reducing means and the fourth heat exchange mechanism for reducing the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism. When the third measured temperature of the air measured by the third temperature sensor exceeds the third set temperature range by implementing any one of the inflow stopping means for stopping the refrigerant inflow to the fourth heat exchange The cooling function in the mechanism declines and the fourth heat exchange Although the dehumidified air cannot be sufficiently cooled using the structure, the cooling function of the fourth heat exchange mechanism can be increased by increasing the amount of refrigerant flowing into the fourth heat exchange mechanism. The dehumidified air is sufficiently cooled by the fourth heat exchange mechanism, the third measured temperature can be within the range of the third set temperature, and the dehumidified air whose temperature has been lowered by the fourth heat exchange mechanism is dehumidified into the dehumidified conditioned space. You can supply air. In the dehumidifying system, when the third measured temperature of the air measured by the third temperature sensor falls below the third set temperature range in the winter when the air is dried and the temperature of the air is lowered, or the third temperature sensor measured When the third measured temperature of air can be maintained within the range of the third set temperature, it is not necessary to cool the air using the fourth heat exchange mechanism, in which case the refrigerant flowing into the fourth heat exchange mechanism By reducing the amount of inflow or stopping the inflow of refrigerant to the fourth heat exchange mechanism and using the cold heat of the refrigerant in other cold piping systems, the waste of the refrigerant can be saved and the system can save energy Can be achieved. The dehumidification system uses the dehumidification mechanism located in the dehumidification processing zone by utilizing the minimum amount of cold supplied from the heat exchanger or heat recovery heat pump after exchanging heat with the first heat exchange mechanism. By performing heat exchange between the dehumidified air that has flowed and the fourth heat exchange mechanism, the air supplied to the dehumidified air-conditioning space can be cooled, so the air whose temperature has been lowered by the fourth heat exchange mechanism is dehumidified. Air can be supplied to the air-conditioned space.

  Including an external air conditioner installed between the dehumidifying mechanism and the third heat exchange mechanism located in the dehumidifying treatment zone, and the external air conditioner dehumidifies the air supplied to the dehumidifying mechanism in the dehumidifying treatment zone, The dehumidification system that adjusts the temperature can supplement the air cooling function in the third heat exchange mechanism and the air cooling function in the fourth heat exchange mechanism by using the external air conditioner, and reliably remove the dehumidified air in the dehumidification mechanism. It can be made and the dehumidified air can be reliably cooled.

  The dehumidification system in which the refrigerant is water or brine uses water or brine as the refrigerant. For example, when the refrigerant is not used in the third heat exchange mechanism or the fourth heat exchange mechanism, the refrigerant is used as another cooling pipe system. The refrigerant can be easily used in other cold piping systems, and the refrigerant can be effectively used. When a desiccant rotor is used as the dehumidifying mechanism, dehumidified air from which moisture contained in the air has been removed can be reliably created using the desiccant rotor, and the dehumidified air can be supplied to the dehumidified air-conditioned space. it can.

The block diagram of the dehumidification system shown as an example. The figure which shows an example of supply of the dehumidification air with respect to dehumidification air-conditioning space, and return air. The figure which shows another example of the supply of dehumidification air with respect to dehumidification air-conditioning space, and return air. The figure which shows an example of the driving | running state of a dehumidification system. The figure which shows another example of the driving | running state of a dehumidification system. The block diagram of the dehumidification system shown as another example. The figure which shows an example of the driving | running state of a dehumidification system. The figure which shows another example of the driving | running state of a dehumidification system.

  The details of the dehumidification system according to the present invention will be described below with reference to the accompanying drawings such as FIG. 1 which is a configuration diagram of the dehumidification system 10A shown as an example. FIG. 2 is a diagram illustrating an example of supply and return of dehumidified air to the dehumidified air-conditioned space 19, and FIG. 3 illustrates another example of supply and return of dehumidified air to the dehumidified air-conditioned space 19. FIG. In FIG. 1, illustration of the dehumidifying air-conditioned space 19 is omitted, and in FIGS. 2 and 3, illustration of the first to fourth heat exchange mechanisms 12 to 15, the heater 16, the desiccant rotor 17, and the external air conditioner 18 is omitted. .

  The dehumidifying system 10 </ b> A includes a desiccant air conditioner 11, first to fourth heat exchange mechanisms 12 to 15, a heater 16, a desiccant rotor 17 (dehumidifying mechanism), and an external air conditioner 18. The dehumidification system 10A creates dehumidified air (including low dew point air) with low humidity, and the dehumidified air is used in lithium battery manufacturing factories, pharmaceutical factories, clean rooms, environmental test rooms, food processing factories, semiconductor factories, machine product warehouses, etc. Air is supplied to a dehumidified air-conditioned space 19 (see FIGS. 2 and 3) that requires dehumidified air.

  The desiccant air conditioner 11 has a dehumidification processing zone 20 that creates dehumidified air using the desiccant rotor 17, and a dehumidifying function regeneration zone 21 that regenerates the dehumidifying function of the desiccant rotor 17 (dehumidifying agent). A first duct 22 is connected to an air intake port leading to the dehumidification processing zone 20 of the desiccant air conditioner 11, and a second duct 23 is connected to an air supply port leading to the dehumidification processing zone 20. A third duct 24 is connected to the air intake leading to the dehumidifying function regeneration zone 21 of the desiccant air conditioner 11, and a fourth duct 25 is connected to the air exhaust opening leading to the dehumidifying function regeneration zone 21.

  An air supply blower 26 is installed between the air intake (first duct 22) and the desiccant rotor 17 in the dehumidifying treatment zone 20 of the desiccant air conditioner 11. An exhaust fan 27 is installed between the desiccant rotor 17 and the air exhaust port (fourth duct 25) in the dehumidifying function regeneration zone 21 of the desiccant air conditioner 11. In the desiccant air conditioner 11, when the air supply blower 26 is operated, air flows from the first duct 22 through the air intake port into the dehumidifying treatment zone 20, and the air contacts the dehumidifying agent of the desiccant rotor 17 to generate moisture. After the absorbed dehumidified air is created, the dehumidified air flows into the second duct 23 from the air supply port. Further, when the exhaust fan 27 is operated, air flows from the third duct 24 through the air intake into the dehumidifying function regeneration zone 21, and the heated air contacts the dehumidifying agent of the desiccant rotor 17 to dry the dehumidifying agent. After that, the heated air flows into the fourth duct 25 from the air exhaust port.

  As an example of supply / exhaust of the dehumidified air to the dehumidified air-conditioned space 19, as shown in FIG. 2, the dehumidified air produced by the desiccant air conditioner 11 is supplied from the second duct 23 to the dehumidified air-conditioned space 19, The air exhausted from 19 may be returned to the first duct 22. Outside air is supplied to the dehumidifying treatment zone 20 of the desiccant air conditioner 11 together with the air exhausted from the dehumidifying air-conditioned space 19, and outside air is supplied to the dehumidifying function regeneration zone 21.

  As another example of supply / exhaust of dehumidified air to the dehumidified air-conditioned space 19, as shown in FIG. 3, the air exhausted from the dehumidified air-conditioned space 19 is released to the outside air without being returned to the first duct 22. Outside air is supplied to the dehumidifying function regeneration zone 21 of the desiccant air conditioner 11, and outside air is supplied to the dehumidifying treatment zone 20.

  The first heat exchange mechanism 12 is disposed in the dehumidifying function regeneration zone 21 on the upstream side of the desiccant rotor 17. The first heat exchange mechanism 12 is formed of a heat pump unit 29 having an inverter control type compressor 28 and a heat exchanger 30. The heat pump unit 29 constitutes a refrigeration cycle using CO2 as a refrigerant, a condenser 31 installed in the dehumidifying function regeneration zone 21 of the desiccant air conditioner 11, an evaporator 32 installed inside the heat exchanger 30, And an expansion valve (not shown).

  The condenser 31, the evaporator 32, the compressor 28, and the expansion valve of the heat pump unit 29 are connected by an outgoing pipe 33 and a return pipe 34. The compressor 28 of the heat pump unit 29 is installed in the outgoing pipe 33. The control unit (not shown) of the heat pump unit 29 is connected to the first controller 36 via the control signal line 35.

  The first controller 36 is a computer having a central processing unit and a memory. The memory of the controller 36 stores the first set temperature (about 120 to about 130 ° C.) of the heated air supplied to the moisture release area 41 described later of the desiccant rotor 17. The controller 36 compares a first measured temperature transmitted from a first temperature sensor 39, which will be described later, with a first set temperature, and adjusts the increase / decrease in the number of rotations of the compressor 28 of the heat pump unit 29 based on the result. 16 starts and stops, and adjusts the increase or decrease in the amount of heat (output) of the heater 16.

  When the first controller 36 sends a rotation speed increase signal for increasing the rotation speed of the compressor 28 to the control unit of the heat pump unit 29, the control unit increases the rotation speed of the compressor 28 and the work amount of the heat pump unit 29 increases. When the controller 36 sends a rotation speed decrease signal for decreasing the rotation speed of the compressor 28 to the control section of the heat pump unit 29, the control section decreases the rotation speed of the compressor 28 and the work amount of the heat pump unit 29 decreases.

  The heat exchanger 30 is provided with a heat exchange coil 37 for exchanging heat with the first heat exchange mechanism 12 (the evaporator 32 of the heat pump unit 29). A circulation pipe 38 through which the refrigerant circulates is connected to the heat exchange coil 37. The air passing through the dehumidifying function regeneration zone 21 is heated to a predetermined temperature (about 120 to about 130 ° C.) by the condenser 31 of the heat pump unit 29, and the heat exchange coil 37 exchanges heat with the evaporator 32 of the heat pump unit 29. The refrigerant flowing from the circulation pipe 38 into the heat exchange coil 37 is cooled to a predetermined temperature (about 20 ° C.). The cooled refrigerant flows from the heat exchange coil 37 into the circulation pipe 38. Water or brine is used as the refrigerant flowing through the heat exchange coil 37 and the circulation pipe 38, but a refrigerant different from water or brine can also be used.

  The heater 16 is installed in the dehumidifying function regeneration zone 21 between the first heat exchange mechanism 12 and the desiccant rotor 17. The heater 16 further heats the heated air heated to a predetermined temperature by the condenser 31 (first heat exchange mechanism 12) of the heat pump unit 29, and the heating function when the air in the condenser 31 is insufficiently heated. As a result, the air supplied to the desiccant rotor 17 in the dehumidifying function regeneration zone 21 is heated to a predetermined temperature (about 120 to about 130 ° C.). The controller (not shown) of the heater 16 is connected to the first controller 36 via the control signal line 35.

  When the first controller 36 sends an ON signal (operation signal) to the control unit of the heater 16, the control unit operates the heater 16. When the controller 36 sends an OFF signal (stop signal) to the control unit of the heater 16, the control unit stops the heater 16 in operation. When the controller 36 sends a heat amount increase signal to the control unit of the heater 16, the control unit increases the heat amount of the heater 16 in operation, and when the controller 36 sends a heat amount decrease signal to the control unit of the heater 16, the control unit operates. The amount of heat of the heater 16 inside is reduced.

  A first temperature sensor 39 is installed in the dehumidifying function regeneration zone 21 between the heater 16 and the desiccant rotor 17. The temperature sensor 39 is connected to the first controller 36 via the control signal line 35. The temperature sensor 39 measures the temperature of the heated air supplied to the desiccant rotor 17 in the dehumidifying function regeneration zone 21 and transmits the measured first measured temperature to the controller 36.

  The desiccant rotor 17 is disposed in the dehumidifying treatment zone 20 and the dehumidifying function regeneration zone 21 of the desiccant air conditioner 11. The desiccant rotor 17 contains a dehumidifying agent (not shown) inside the cylindrical housing, rotates in one direction inside the desiccant air conditioner 11, and repeatedly moves through the dehumidifying treatment zone 20 and the dehumidifying function regeneration zone 21. Zeolite or silica gel is used as the dehumidifying agent.

  In the desiccant rotor 17, a portion located in the dehumidifying treatment zone 20 becomes a dehumidifying region 40, and a portion located in the dehumidifying function regeneration zone 21 becomes a moisture releasing region 41. In the dehumidifying zone 40 of the desiccant rotor 17 located in the dehumidifying treatment zone 20, moisture contained in the air is adsorbed (absorbed) by the dehumidifying agent to generate dehumidified air. In the dehumidifying area 41 of the desiccant rotor 17 located in the dehumidifying function regeneration zone 21, heated air is passed through the dehumidifying agent that has absorbed moisture to heat the dehumidifying agent, and the dehumidifying agent is dehumidified by releasing the moisture. Play the function.

  The second heat exchange mechanism 13 is arranged on the downstream side of the desiccant rotor 17 located in the dehumidifying function regeneration zone 21. The second heat exchange mechanism 13 includes a heat exchange coil 42, and the heat exchange coil 42 is installed inside the fourth duct 25. A circulation pipe 38 extending from the heat exchange coil 37 of the heat exchanger 30 is connected to the heat exchange coil 42 of the second heat exchange mechanism 13. The heat exchange coil 42 may be installed in the dehumidifying function regeneration zone 21 (inside the desiccant air conditioner 11) on the downstream side of the desiccant rotor 17.

  In the second heat exchange mechanism 13, the air flowing into the fourth duct 25 using the refrigerant (water or brine) flowing through the heat exchange coil 42 (through the moisture release area 41 of the desiccant rotor 17 in the dehumidifying function regeneration zone 21). Heat exchange is performed with the heated air that has flowed, and the heat (exhaust heat) of the heated air is recovered. A circulation pump 57 is installed in the circulation pipe 38 extending between the first heat exchange mechanism 12 and the second heat exchange mechanism 13.

  The third heat exchange mechanism 14 is arranged on the upstream side of the desiccant rotor 17 located in the dehumidification processing zone 20. The third heat exchange mechanism 14 includes a heat exchange coil 43, and the heat exchange coil 43 is installed inside the first duct 22. An outward pipe 44 and a return pipe 45 are connected to the heat exchange coil 43 of the third heat exchange mechanism 14. The outgoing pipe 44 and the return pipe 45 are connected to a circulation pipe 38 extending from the heat exchange coil 37 of the heat exchanger 30.

  In the third heat exchange mechanism 14, air flowing into the first duct 22 is supplied to the dehumidification zone 40 of the desiccant rotor 17 in the dehumidification treatment zone 20 using refrigerant (water or brine) flowing through the heat exchange coil 43. The air is exchanged with heat, and the air is cooled. As a result, moisture contained in the air is removed, and the humidity of the air is lowered. A three-way valve 46 (motor-operated valve) is installed at a connection point between the outgoing pipe 44 and the circulation pipe 38. The control unit (not shown) of the three-way valve 46 is connected to the second controller 48 via a control signal line 47.

  The second controller 48 is a computer having a central processing unit and a memory. The memory of the controller 48 stores a second set temperature (about 27 to about 29 ° C., preferably about 28 ° C.) of the air supplied to the dehumidifying area 40 of the desiccant rotor 17. The controller 48 compares the second measured temperature transmitted from the second temperature sensor 49 to be described later and the second set temperature, and opens and closes the valve mechanism of the three-way valve 46 based on the result. Adjust the opening of the valve mechanism.

  When the second controller 48 sends an opening signal for opening the valve mechanism of the three-way valve 46 to the control unit of the three-way valve 46, the control unit opens the valve mechanism of the three-way valve 46. When the controller 48 sends a closing signal for closing the valve mechanism of the three-way valve 46 to the control unit of the three-way valve 46, the control unit closes the valve mechanism of the three-way valve 46. When the controller 48 sends an opening signal (opening increase signal or opening decrease signal) corresponding to the opening of the valve mechanism of the three-way valve 46 to the control unit, the control unit opens the opening of the valve mechanism of the three-way valve 46. Change to the opening specified by the degree signal and maintain the changed opening.

  The external air conditioner 18 is installed in the first duct 22 that extends between the desiccant air conditioner 11 and the third heat exchange mechanism 14. A second temperature sensor 49 is installed inside the first duct 22 between the third heat exchange mechanism 14 and the external air conditioner 18. The temperature sensor 49 is connected to the second controller 48 via the control signal line 47. The temperature sensor 49 measures the temperature of the air flowing through the first duct 22 extending downstream of the third heat exchange mechanism 14 (the air supplied to the desiccant rotor 17 in the dehumidifying treatment zone 20), and measures the measured second temperature. The measured temperature is transmitted to the controller 48.

  The fourth heat exchange mechanism 15 is disposed on the downstream side of the desiccant rotor 17 located in the dehumidification processing zone 20. The fourth heat exchange mechanism 15 includes a heat exchange coil 50, and the heat exchange coil 50 is installed in the dehumidification processing zone 20 of the desiccant air conditioner 11. An outward pipe 51 and a return pipe 52 are connected to the heat exchange coil 50 of the fourth heat exchange mechanism 15. The outgoing pipe 51 and the return pipe 52 are connected to a circulation pipe 38 extending from the heat exchange coil 37 of the heat exchanger 30.

  In the fourth heat exchange mechanism 15, air flowing in the dehumidification treatment zone 20 using the refrigerant (water or brine) flowing in the heat exchange coil 50 (air flowing out from the dehumidification zone 40 of the desiccant rotor 17 in the dehumidification treatment zone 20). ) To cool the air and lower the temperature of the air. A three-way valve 53 (motor-operated valve) is installed at a connection point between the outgoing pipe 51 and the circulation pipe 38. The three-way valve 53 has a control unit (not shown) connected to the third controller 55 via a control signal line 54. The first heat exchange mechanism 12, the third heat exchange mechanism 14, and the fourth heat exchange mechanism 15 are illustrated as being controlled by separate first to third controllers 36, 48, and 55. In some cases, the exchange mechanisms 12, 14, and 15 are controlled by a single controller.

  The third controller 55 is a computer having a central processing unit and a memory. In the memory of the controller 55, the third set temperature (about 24 to about 26 ° C., preferably about 25 ° C.) of the air flowing out from the dehumidifying area 40 of the desiccant rotor 17 and flowing through the fourth heat exchange mechanism 15. Stored. The controller 55 compares the third measured temperature transmitted from the third temperature sensor 49 to be described later with the third set temperature, and opens and closes the valve mechanism of the three-way valve 53 based on the result. Adjust the opening of the valve mechanism.

  When the third controller 55 sends an opening signal for opening the valve mechanism of the three-way valve 53 to the control unit of the three-way valve 53, the control unit opens the valve mechanism of the three-way valve 53. When the controller 55 sends a closing signal for closing the valve mechanism of the three-way valve 53 to the control unit of the three-way valve 53, the control unit closes the valve mechanism of the three-way valve 53. When the controller 55 sends an opening signal (opening increase signal or opening decrease signal) corresponding to the opening of the valve mechanism of the three-way valve 53 to the controller, the controller opens the opening of the valve mechanism of the three-way valve 53. Change to the opening specified by the degree signal and maintain the changed opening.

  A third temperature sensor 56 is installed in the dehumidifying zone 20 of the desiccant air conditioner 11 between the fourth heat exchange mechanism 15 and the second duct 23. The temperature sensor 56 is connected to the third controller 55 via the control signal line 54. The temperature sensor 56 flows through the dehumidification zone 20 of the desiccant air conditioner 11 extending downstream of the fourth heat exchange mechanism 14 (flows out of the dehumidification zone 40 of the desiccant rotor 17 in the dehumidification zone 20 and performs fourth heat exchange). The temperature of the air flowing through the mechanism 15 is measured, and the measured third measured temperature is transmitted to the controller 55.

  FIG. 4 is a diagram illustrating an example of an operation state of the dehumidification system 10A. In FIG. 4, illustration of the dehumidifying air-conditioned space 19 is omitted. In the operation state of FIG. 4, an opening signal for opening the valve mechanism of the three-way valve 46 is sent from the second controller 48, and the valve mechanism of the three-way valve 46 is fully opened or opened to a predetermined opening. Also, an opening signal for opening the valve mechanism of the three-way valve 53 is sent from the third controller 55, and the valve mechanism of the three-way valve 53 is fully opened or opened to a predetermined opening.

  When the dehumidifying system 10A is activated, the desiccant air conditioner 11 is operated, the heat pump unit 29 and the heater 16 of the first heat exchange mechanism 12 are operated, and the circulation pump 57 is operated. Furthermore, each temperature sensor 39, 49, 56 starts temperature measurement, and each controller 36, 48, 55 operates. When the circulation pump 57 is operated, the refrigerant circulates through the circulation pipe 38. When the desiccant air conditioner 11 is operated, the air supply blower 26 and the exhaust blower 27 are activated, and the desiccant rotor 17 starts rotating in one direction.

  In the dehumidifying system 10 </ b> A, air (outside air) flows into the dehumidifying function regeneration zone 21 of the desiccant air conditioner 11 through the third duct 24 by the exhaust fan 27. In the first heat exchange mechanism 12 disposed in the dehumidifying function regeneration zone 21, the refrigerant (CO 2) is sent from the outlet pipe 33 and the return pipe 34 (the compressor 28, the condenser 31, the evaporator 32, the expansion valve) by the compressor 28 of the heat pump unit 29. ) Is recirculated, and the air flowing into the dehumidifying function regeneration zone 21 is heated by the condenser 31 to produce heated air having a predetermined temperature.

  In the heat exchanger 30 of the first heat exchange mechanism 12, heat exchange is performed between the evaporator 32 of the heat pump unit 29 and the heat exchange coil 37, and the refrigerant (about 25 ° C.) that flows into the heat exchange coil 37 from the circulation pipe 38. Water or brine) is cooled to a predetermined temperature (about 20 ° C.), and the refrigerant flows out to the circulation pipe 38 again and is sent to the second to fourth heat exchange mechanisms 13 to 15 through the circulation pipe 38.

  The heated air heated by the first heat exchange mechanism 12 (the condenser 31 of the heat pump unit 29) flows through the dehumidifying function regeneration zone 21 and the moisture release area 41 of the desiccant rotor 17 located in the zone 21. When the heated air flows through the moisture release area 41, the dehumidifier present in the moisture release area 41 of the desiccant rotor 17 is heated by the heated air, and the moisture adsorbed by the dehumidifier is released, so that the desiccant rotor 17 is released. The dehumidifying function of (dehumidifying agent) is regenerated (recovery of adsorption performance by drying).

  The temperature of the heated air measured by the first temperature sensor 39 is sent to the first controller 36, and the controller 36 measures the heated air (air supplied to the moisture release area 41 of the desiccant rotor 17). The first measured temperature is compared with the first set temperature (about 120 ° C. to about 130 ° C.) stored in the memory.

  The controller 36 performs feedback control and feedforward control on the heater 16 and the compressor 28 of the heat pump unit 29 so that the first measured temperature falls within the range of the first set temperature. As a result of comparing the first measured temperature with the first set temperature, the controller 36 determines that the first heat exchange mechanism 12 (the compressor of the heat pump unit 29 at that time) if the first measured temperature is within the range of the first set temperature. If the operation state of 28) or the heater 16 is operating, the operation state of the heater 16 is maintained.

  As a result of comparing the first measured temperature with the first set temperature, the first controller 36 determines that the first measured temperature is lower than the first set temperature (the outside air or the return air from the dehumidified air-conditioned space 19 becomes low temperature). Or the first measured temperature falls below the first set temperature due to disturbance such as malfunction of the heat pump unit 29 or the heater 16), or the heater operation that operates the heater 16 when the heater 16 is not operating At least one of means, a heat amount increasing means for increasing the heat amount (output) of the heater 16 in operation when the heater 16 is operating, and a work amount increasing means for increasing the work amount of the heat pump unit 29 To implement.

  In the heater operating means, the controller 36 sends an ON signal (operation signal) to the controller of the heater 16 to operate the heater 16. When the heater 16 is operated, the heated air heated by the first heat exchange mechanism 12 is further heated by the heater 16, and the first measured temperature of the heated air falls within the range of the first set temperature. In the heat quantity increasing means, the controller 36 sends a heat quantity increase signal to the control unit of the heater 16 to increase the heat quantity of the heater 16. When the amount of heat of the heater 16 increases, the heated air heated by the first heat exchange mechanism 12 is further heated by the heater 16, and the first measured temperature of the heated air falls within the range of the first set temperature.

  In the work amount increasing means, the controller 36 sends a rotation speed increase signal to the control unit of the heat pump unit 29 to increase the rotation speed of the compressor 28 and increase the work volume of the heat pump unit 29. As the work amount of the heat pump unit 29 increases, the air is further heated, and the first measured temperature of the heated air falls within the range of the first set temperature.

  As a result of comparing the first measured temperature with the first set temperature, the first controller 36 determines that the first measured temperature exceeds the first set temperature (the outside air or the return air from the dehumidified air-conditioned space 19 becomes high temperature). Or a case where the first measured temperature exceeds the first set temperature due to a disturbance such as a malfunction of the heat pump unit 29 or the heater 16), or the heater stop that stops the heater 16 when the heater 16 is operating At least one of the means, the heat amount reducing means for reducing the heat amount (output) of the heater 16 in operation, and the work amount reducing means for reducing the work amount of the heat pump unit 29 is implemented.

  In the heater stop means, the controller 36 sends an OFF signal (stop signal) to the controller of the heater 16 to stop the heater 16. When the heater 16 is stopped, heating of the heated air by the heater 16 is stopped, and the first measured temperature of the heated air falls within the range of the first set temperature. In the heat quantity reducing means, the controller 36 sends a heat quantity reduction signal to the controller of the heater 16 to reduce the heat quantity of the heater 16. When the amount of heat of the heater 16 decreases, heating of the heated air by the heater 16 becomes weak, and the first measured temperature of the heated air falls within the first set temperature range.

  In the work amount reducing means, the controller 36 sends a rotation speed reduction signal to the control unit of the heat pump unit 29 to reduce the rotation speed of the compressor 28 and reduce the work volume of the heat pump unit 29. By reducing the work amount of the heat pump unit 29, the heating of the air by the first heat exchange mechanism 12 becomes weak, and the first measured temperature of the heated air falls within the range of the first set temperature.

  The heated air flowing through the moisture release area 41 of the desiccant rotor 17 flows into the fourth duct 25 from the dehumidifying function regeneration zone 21 and is released from the fourth duct 25 to the outside air. At that time, heat exchange is performed between the refrigerant flowing through the heat exchange coil 42 of the second heat exchange mechanism 13 and the heated air flowing into the fourth duct 25, and exhaust heat (exchange heat) of the heated air (comment: Since the term “exchange heat” is used in the claims, the heat exchange is also described as it is) and is recovered by the second heat exchange mechanism 13. The collected exchange heat is conveyed to the heat exchange coil 37 of the heat exchanger 30 by the refrigerant.

  In the dehumidification system 10 </ b> A, air (outside air or return air exhausted from the outside air and the dehumidified air-conditioned space 19) flows into the first duct 22 by the air supply fan 26. Since the valve mechanism of the three-way valve 46 is open to the heat exchange coil 43 side of the third heat exchange mechanism 14, as shown by the arrow L <b> 1 in FIG. 4, the refrigerant exchanged heat by the heat exchange coil 37 of the heat exchanger 30. (About 20 ° C.) flows into the heat exchange coil 43 of the third heat exchange mechanism 14 through the forward pipe 44 and flows into the circulation pipe 38 through the return pipe 45.

  In the third heat exchange mechanism 14, heat exchange is performed between the refrigerant flowing through the heat exchange coil 43 and the air flowing into the first duct 22 (air supplied to the dehumidification zone 40 of the desiccant rotor 17 in the dehumidification treatment zone 20). And the temperature of the air is lowered, whereby the moisture contained in the air is removed and the humidity of the air is lowered, and the exchange heat of the air is recovered by the third heat exchange mechanism 14. The recovered exchange heat is conveyed to the heat exchange coil 37 of the heat exchanger 30 through the second heat exchange mechanism 13 by the refrigerant.

  The temperature of the air measured by the second temperature sensor 49 is sent to the second controller 48. The controller 48 measures the second measured temperature of the air measured by the temperature sensor 49 and the second set temperature (27 ° C.) stored in the memory. ~ 29 ° C, preferably 28 ° C). The controller 48 performs feedback control and feedforward control on the third heat exchange mechanism 14 so that the second measured temperature falls within the range of the second set temperature. When the second measured temperature is within the range of the second set temperature as a result of comparing the second measured temperature and the second set temperature, the controller 48 maintains the opening degree of the valve mechanism of the three-way valve 46 at that time. The amount of refrigerant flowing into the heat exchange coil 43 is maintained.

  As a result of comparing the second measured temperature and the second set temperature, the second controller 48 determines that the second measured temperature exceeds the second set temperature (such as the outside air or the return air in the dehumidified air-conditioned space 19 becomes high temperature). (Including the case where the second measured temperature exceeds the second set temperature due to disturbance), an opening degree signal is sent to make the opening degree of the valve mechanism of the three-way valve 46 larger than the current opening degree, and the opening of the valve mechanism of the three-way valve 46 The degree of change is changed to the degree of opening designated by the opening degree signal, and the inflow amount adjusting means for increasing the inflow amount of the refrigerant flowing into the heat exchange coil 43 is implemented.

  By increasing the opening degree of the valve mechanism of the three-way valve 46, the amount of refrigerant flowing into the heat exchange coil 43 of the third heat exchange mechanism 14 increases, and the air flowing through the first duct 22 and the heat exchange coil 43 are increased. The ratio of heat exchange with the refrigerant flowing in the air increases, so that the air is further cooled, and the second measured temperature of the air falls within the range of the second set temperature.

  In the dehumidifying system 10 </ b> A, when the second measured temperature of the air measured by the second temperature sensor 49 exceeds the range of the second set temperature, the dehumidifying function in the third heat exchange mechanism 14 is lowered and the dehumidifying area 40 of the desiccant rotor 17. The air supplied to the air cannot be sufficiently cooled (dehumidified), but by increasing the amount of refrigerant flowing into the third heat exchange mechanism 14 (heat exchange coil 43), the third heat exchange mechanism 14 The dehumidifying function can be increased, and the air supplied to the desiccant rotor 17 can be reliably cooled.

  The air whose temperature has been cooled (humidity removed) by the heat exchange coil 43 of the third heat exchange mechanism 14 flows into the external air conditioner 18, and the external air conditioner 18 further removes the humidity of the air and the air is predetermined. Cooled to temperature. The dehumidification system 10 </ b> A can supplement the dehumidification function in the third heat exchange mechanism 14 and the dehumidification function by air cooling in the fourth heat exchange mechanism 15 by using the external air conditioner 18.

  The air whose moisture has been removed by the external air conditioner 18 and cooled to a predetermined temperature flows from the external air conditioner 18 into the dehumidification processing zone 20 of the desiccant air conditioner 11. The air flowing into the dehumidifying zone 20 flows through the dehumidifying zone 40 of the desiccant rotor 17 located in the dehumidifying zone 20. When the air flows through the dehumidifying zone 40, the humidity of the air is removed by the dehumidifying agent, and dehumidified air (including low dew point air) is created.

  The dehumidified air flows into the dehumidifying treatment zone 20 extending downstream of the desiccant rotor 17. Since the valve mechanism of the three-way valve 53 is open to the heat exchange coil 50 side of the fourth heat exchange mechanism 15, as shown by the arrow L <b> 2 in FIG. 4, the refrigerant exchanged heat by the heat exchange coil 37 of the heat exchanger 30. (About 20 ° C.) flows into the heat exchange coil 50 of the fourth heat exchange mechanism 15 through the forward pipe 51 and flows into the circulation pipe 38 through the return pipe 52.

  In the fourth heat exchange mechanism 15, heat exchange is performed between the refrigerant flowing through the heat exchange coil 50 and the dehumidified air (dehumidified air supplied to the dehumidified air-conditioned space 19), and the temperature of the dehumidified air decreases. The exchange heat of the dehumidified air is recovered by the fourth heat exchange mechanism 15. The recovered exchange heat is carried by the refrigerant to the heat exchange coil 37 of the heat exchanger 30 through the third heat exchange mechanism 14 and the second heat exchange mechanism 13. The dehumidified air whose temperature has been lowered is supplied to the dehumidified conditioned space 19 through the second duct 23.

  The temperature of the air measured by the third temperature sensor 56 is sent to the third controller 55, and the controller 55 measures the third measured temperature of the air measured by the temperature sensor 56 and the third set temperature (about 24) stored in the memory. To about 26 ° C., preferably about 25 ° C.). The controller 55 performs feedback control and feedforward control on the fourth heat exchange mechanism 15 so that the third measured temperature falls within the range of the third set temperature. When the third measured temperature is within the range of the third set temperature as a result of comparing the third measured temperature and the third set temperature, the controller 55 maintains the opening degree of the valve mechanism of the three-way valve 53 at that time. The amount of refrigerant flowing into the heat exchange coil 50 is maintained.

  As a result of comparing the third measured temperature and the third set temperature, the third controller 55 determines that the third measured temperature exceeds the third set temperature (the first controller is caused by disturbance such as heat released from the dehumidifying area 40 of the desiccant rotor 17). 3 including the case where the measured temperature exceeds the third set temperature), an opening signal for increasing the opening degree of the valve mechanism of the three-way valve 53 is sent to open the opening degree of the valve mechanism of the three-way valve 53. The inflow amount adjusting means for changing the opening degree designated by the degree signal and increasing the inflow amount of the refrigerant flowing into the heat exchange coil 50 is implemented. As the opening degree of the valve mechanism of the three-way valve 53 increases, the amount of refrigerant flowing into the heat exchange coil 50 of the fourth heat exchange mechanism 15 increases, and the amount of refrigerant flowing between the dehumidified air and the refrigerant flowing through the heat exchange coil 50 increases. The amount of heat exchange increases to further cool the air, and the third measured temperature of the air falls within the range of the third set temperature.

  When the third measured temperature of the air measured by the third temperature sensor 56 exceeds the range of the third set temperature, the dehumidification system 10A uses the fourth heat exchange mechanism 15 to cool the dehumidified air to the third set temperature. In this case, the dehumidified air can be reliably cooled by the fourth heat exchange mechanism 15 by increasing the amount of refrigerant flowing into the fourth heat exchange mechanism 15 (heat exchange coil 50). The dehumidified air having the third set temperature (target temperature) whose temperature has been lowered by the fourth heat exchange mechanism 15 can be supplied to the dehumidified air-conditioned space 19.

  In the dehumidification system 10 </ b> A, the second heat exchange mechanism 13 collects exhaust heat (exchange heat) of the exhaust air flowing through the moisture release area 41 of the desiccant rotor 17 in the dehumidification function regeneration zone 21 using a refrigerant, and performs dehumidification processing. The third heat exchange mechanism 14 collects the exchange heat of the air supplied to the dehumidifying zone 40 of the desiccant rotor 17 in the zone 20 using the refrigerant, and flows through the dehumidifying zone 40 of the desiccant rotor 17 in the dehumidifying treatment zone 20. The exchange heat of the dehumidified air is recovered by the fourth heat exchange mechanism 15 using the refrigerant, and the exchange heat recovered by the second to fourth heat exchange mechanisms 13 to 15 is stored in the heat exchanger 30 using the refrigerant. Heat exchange is performed between the first heat exchange mechanism 12 and the heat exchange coil 37 that are supplied to the heat exchange coil 37 and use the heat pump unit 29, so that the exchange heat of the heated air is changed to the first heat exchange mechanism 12 ( Since it is used for heating air in the compressor 31), exhaust air after regenerating the dehumidifying function of the desiccant rotor 17 (dehumidifying agent), air supplied to the dehumidifying area 40 of the desiccant rotor 17, and the desiccant rotor 17 The exchange heat of the dehumidified air flowing through the dehumidification zone 40 is not wasted, the exchange heat of the air can be reused, and the desiccant rotor 17 is compared with the case where the exchange heat of the air is not used. The air supplied to the moisture release area 41 of (dehumidifier) can be sufficiently heated in the first heat exchange mechanism 12.

  The dehumidification system 10A can transmit the exchange heat from the heat exchange coil 37 of the heat exchanger 30 to the first heat exchange mechanism 12 using the refrigerant that has received the exchange heat of the air, and the exchange heat is transferred to the first heat. Since it can be used effectively in the heat pump unit 29 of the exchange mechanism 12, it is necessary to cool (dehumidify) the third heat exchange mechanism 14 and the fourth heat exchange mechanism 15 in the winter when the temperature and humidity of the outside air are low. Even under low conditions, the refrigerant can be heated in the second heat exchange mechanism 13, the heat balance of the refrigeration cycle in the heat pump unit 29 can be improved, and the operating efficiency (COP) of the heat pump unit 29 can be improved. At the same time, the heat pump unit 29 can be stably operated. The dehumidification system 10A uses the exchange heat of the air for heating the air in the first heat exchange mechanism 12, so that the air supplied to the moisture release area 41 of the desiccant rotor 17 even in the winter when the temperature of the outside air is low. Can be sufficiently heated, and the dehumidifying function of the desiccant rotor 17 (dehumidifying agent) can be reliably regenerated using the heated air.

  In the dehumidification system 10A, a circulation circuit of exchange heat and cold heat is formed between the first to fourth heat exchange mechanisms 12 to 15, and the exchange heat and cold heat are circulated through the circuit using a refrigerant to exchange heat. In addition, it is possible to effectively use the cold and heat, and to realize energy saving of the system 10A and stable operation of the heat pump unit 29. In the dehumidification system 10A, water or brine is used as a refrigerant used for heat exchange in the heat exchange coil 37, and the third heat is obtained by using a water refrigerant or brine having a safe and stable versatility. When the inflow of water refrigerant or brine is stopped in the exchange mechanism 15 or the fourth heat exchange mechanism 15, or the inflow amount of water refrigerant or brine is reduced in the third heat exchange mechanism 15 or the fourth heat exchange mechanism 15 In this case, the water refrigerant or brine can be introduced into another cold piping system, and the water refrigerant or brine can be easily used in other cold piping systems, and the exhaust heat (exchange heat) can be effectively used via the refrigerant. Can be achieved.

  The dehumidification system 10A uses the cold supplied from the heat exchange coil 37 after heat exchange with the first heat exchange mechanism 12, and supplies air to the dehumidification zone 40 of the desiccant rotor 17 located in the dehumidification treatment zone 20. By performing heat exchange with the third heat exchange mechanism 14, the air supplied to the dehumidifying area 40 of the desiccant rotor 17 can be cooled, and as a result, the air can be dehumidified. The air whose temperature has been lowered and moisture has been removed by the cooling function 14 can be supplied to the desiccant rotor 17 by the heat exchange mechanism 14, and dehumidified air can be easily created in the desiccant rotor 17 (dehumidifying agent). .

  The dehumidification system 10 </ b> A uses the cold supplied from the heat exchange coil 37 after heat exchange with the first heat exchange mechanism 12, and dehumidified air flowing through the dehumidification area 40 of the desiccant rotor 17 located in the dehumidification treatment zone 20. Since the dehumidified air can be cooled by exchanging heat between the first heat exchange mechanism 15 and the fourth heat exchange mechanism 15, the dehumidified air at the third set temperature (target temperature) whose temperature has been lowered by the fourth heat exchange mechanism 15. Can be supplied to the dehumidified air-conditioned space 19, and the dehumidified air-conditioned space 19 can be kept dry by the dehumidified air, and the dehumidified air-conditioned space 19 can be cooled to the target temperature.

  FIG. 5 is a diagram illustrating another example of the operating state of the dehumidifying system 10A. In FIG. 5, illustration of the dehumidifying air-conditioned space 19 is omitted. When the second controller 48 compares the second measured temperature of the air measured by the second temperature sensor 49 with the second set temperature stored in the memory, the second measured temperature falls below the second set temperature, or When the second measured temperature can be maintained within the range of the second set temperature, either the inflow stop means or the inflow amount reduction means is performed. In the inflow stop means, a closing signal for closing the valve mechanism of the three-way valve 46 is sent to the control unit of the three-way valve 46, the valve mechanism of the three-way valve 46 is closed, and the inflow of the refrigerant to the third heat exchange mechanism 14 is stopped. . In the inflow amount reducing means, an opening degree reduction signal for reducing the opening degree of the valve mechanism of the three-way valve 46 is sent to the controller of the three-way valve 46, the opening degree of the valve mechanism of the three-way valve 46 is reduced, and the third heat exchange mechanism The amount of refrigerant flowing into 14 is reduced more than the latest amount.

  When the valve mechanism of the three-way valve 46 is closed, the inflow of the refrigerant heat-exchanged by the heat exchange coil 37 into the forward pipe 44 is stopped, and the inflow of the refrigerant into the heat exchange coil 43 is stopped. The refrigerant does not flow into the third heat exchange mechanism 14 but flows into the second heat exchange mechanism 13 through the circulation pipe 38 as indicated by an arrow L3 in FIG. Further, when the opening degree of the valve mechanism of the three-way valve 46 is reduced, the amount of refrigerant that has been heat exchanged by the heat exchange coil 37 into the forward pipe 44 is reduced. As long as the second measured temperature is lower than the second set temperature or the second measured temperature can be maintained within the range of the second set temperature, the valve mechanism of the three-way valve 46 is closed or the valve mechanism of the three-way valve 46 is opened. The degree of opening after changing the degree is maintained.

  When the second measured temperature exceeds the second set temperature while the valve mechanism of the three-way valve 46 is closed, the second controller 48 sends a release signal for opening the valve mechanism of the three-way valve 46 to the heat exchange coil 43 side. The inflow starting means for starting the inflow of the refrigerant into the third heat exchanging mechanism 14 is implemented by sending the valve mechanism of the three-way valve 46 to the fully-opened or predetermined opening degree. When the valve mechanism of the three-way valve 46 is opened to the heat exchange coil 43 side, the refrigerant flows into the heat exchange coil 43 through the forward pipe 44, and heat exchange is resumed between the third heat exchange mechanism 14 and the air. Then, the temperature of the air is lowered (the moisture of the air is removed) by the third heat exchange mechanism 14, and the second measured temperature falls within the range of the second set temperature. When the second measured temperature exceeds the second set temperature with the opening degree of the valve mechanism of the three-way valve 46 being reduced, the second controller 48 increases the opening degree signal for increasing the opening degree of the valve mechanism of the three-way valve 46. Is sent to the control unit of the three-way valve 46 to increase the opening of the valve mechanism of the three-way valve 46 and to increase the amount of refrigerant flowing into the third heat exchange mechanism 14. When the opening degree of the valve mechanism of the three-way valve 46 increases, the amount of refrigerant flowing into the heat exchange coil 43 increases, and the amount of heat exchange between the third heat exchange mechanism 14 and the air increases. The temperature falls within the range of the second set temperature.

  When the third controller 55 compares the third measured temperature of the dehumidified air measured by the third temperature sensor 56 with the third set temperature stored in the memory, the third measured temperature is lower than the third set temperature. Alternatively, when the third measured temperature can be maintained within the range of the third set temperature, either one of the inflow stop means and the inflow amount reduction means is performed. In the inflow stop means, a closing signal for closing the valve mechanism of the three-way valve 53 is sent to the control unit of the three-way valve 53, the valve mechanism of the three-way valve 53 is closed, and the inflow of the refrigerant to the fourth heat exchange mechanism 15 is stopped. . In the inflow amount reducing means, an opening reduction signal for reducing the opening degree of the valve mechanism of the three-way valve 53 is sent to the control unit of the three-way valve 53, the opening degree of the valve mechanism of the three-way valve 53 is reduced, and the fourth heat exchange mechanism. The amount of refrigerant flowing into 15 is reduced more than the latest amount.

  When the valve mechanism of the three-way valve 53 is closed, the inflow of the refrigerant heat-exchanged by the heat exchange coil 37 into the forward pipe 51 is stopped, and the inflow of the refrigerant into the heat exchange coil 50 is stopped. The refrigerant does not flow into the fourth heat exchange mechanism 15 but flows into the second heat exchange mechanism 13 through the circulation pipe 38 as indicated by an arrow L4 in FIG. Further, when the opening degree of the valve mechanism of the three-way valve 53 is reduced, the inflow amount of the refrigerant heat-exchanged by the heat exchange coil 37 into the outgoing pipe 51 is reduced. As long as the third measured temperature falls below the third set temperature or can be maintained within the range of the third set temperature, the valve mechanism of the three-way valve 53 is closed or the valve mechanism of the three-way valve 53 is opened. The degree of opening after changing the degree is maintained.

  When the third measured temperature exceeds the third set temperature while the valve mechanism of the three-way valve 53 is closed, the third controller 55 sends an opening signal for opening the valve mechanism of the three-way valve 53 to the heat exchange coil 50 side. An inflow start means for starting the inflow of the refrigerant into the fourth heat exchange mechanism 15 is performed by sending the valve mechanism of the three-way valve 53 to the fully-opened or predetermined opening degree. When the valve mechanism of the three-way valve 53 is opened to the heat exchange coil 50 side, the refrigerant flows into the heat exchange coil 50 through the outgoing pipe 51, and heat exchange is performed between the fourth heat exchange mechanism 15 and the dehumidified air. The temperature of the dehumidified air is lowered by the fourth heat exchange mechanism 15 and the third measured temperature falls within the range of the third set temperature. When the third measured temperature exceeds the third set temperature while the opening degree of the valve mechanism of the three-way valve 53 is reduced, the third controller 55 increases the opening degree signal for increasing the opening degree of the valve mechanism of the three-way valve 53. Is supplied to the control unit of the three-way valve 53 to increase the opening of the valve mechanism of the three-way valve 53 and increase the amount of refrigerant flowing into the fourth heat exchange mechanism 15. When the opening degree of the valve mechanism of the three-way valve 53 is increased, the amount of refrigerant flowing into the heat exchange coil 50 is increased, and the amount of heat exchange between the fourth heat exchange mechanism 15 and the dehumidified air is increased. The measured temperature falls within the range of the third set temperature.

  The dehumidification system 10 </ b> A is used when the second measured temperature of the air measured by the second temperature sensor 49 falls below the second set temperature range in the winter when the outside air is cold and dry, or the second measured temperature is set to the second set temperature. When the temperature can be maintained within the range, it is not necessary to reduce (dehumidify) the temperature of the air using the third heat exchange mechanism 14, and in that case, the inflow of the refrigerant to the third heat exchange mechanism 14 is stopped. Alternatively, the amount of refrigerant flowing into the third heat exchange mechanism 14 is reduced, and the refrigerant (water or brine) is introduced into another cold piping system, so that the cold heat of the refrigerant is used for the other cold piping system. Thus, energy saving of the system 10A and stable operation of the heat pump unit 29 can be realized. When the third measured temperature exceeds the third set temperature while the valve mechanism of the three-way valve 46 is closed or the opening degree of the valve mechanism is reduced, the dehumidification system 10A causes the valve mechanism of the three-way valve 46 to be a heat exchange coil. Since it opens again to the 43rd side, or the opening degree of the valve mechanism is increased, the heat exchange between the third heat exchange mechanism 14 and the air is resumed, or between the third heat exchange mechanism 14 and the air. The amount of heat exchange increases, and the air cooled to the second set temperature (target temperature) by the third heat exchange mechanism 14 (air from which moisture has been removed) can be supplied to the desiccant rotor 17 again.

  10A of dehumidification systems, when the 3rd measured temperature of the air which the 3rd temperature sensor 56 measured is less than the range of the 3rd preset temperature, or when the 3rd measured temperature can be maintained in the range of the 3rd preset temperature, There is no need to cool the dehumidified air using the fourth heat exchange mechanism 15, and in that case, the flow of the refrigerant into the fourth heat exchange mechanism 15 is stopped or the refrigerant flowing into the fourth heat exchange mechanism 15 is stopped. By reducing the amount of inflow and introducing the refrigerant (water or brine) into the other cold piping system, the cold heat of the refrigerant can be used for the other cold piping system, and the energy saving of the system 10A and the heat pump unit 29 Stable operation can be realized. When the fourth measured temperature exceeds the fourth set temperature while the valve mechanism of the three-way valve 53 is closed or the opening degree of the valve mechanism is reduced, the dehumidification system 10A causes the valve mechanism of the three-way valve 53 to be a heat exchange coil. Since the opening of the valve mechanism is increased again or the opening degree of the valve mechanism is increased, the heat exchange between the fourth heat exchange mechanism 15 and the dehumidified air is resumed, or the fourth heat exchange mechanism 15 and the dehumidified air are The amount of heat exchange during the period increases, and the dehumidified air cooled to the third set temperature (target temperature) by the fourth heat exchange mechanism 15 can be supplied to the dehumidified air-conditioned space 19.

  FIG. 6 is a configuration diagram of a dehumidification system 10B shown as another example. The dehumidifying system 10B of FIG. 6 is different from that of FIG. 1 in that it includes a heat recovery heat pump 58, and the other configurations of the system 10B are the same as those of the system 10A of FIG. Detailed descriptions of other configurations of the system 10B are omitted by adding the same reference numerals and using the description of the system 10A.

  The dehumidifying system 10 </ b> B includes a desiccant air conditioner 11, first to fourth heat exchange mechanisms 12 to 15, a heater 16, a desiccant rotor 17 (dehumidifying mechanism), an external air conditioner 18, and a heat recovery heat pump 58. The dehumidification system 10B creates dehumidified air (including low dew point air) having a low humidity and supplies the dehumidified air to the dehumidified air-conditioned space 19 (assisted by FIGS. 2 and 3), similarly to that of FIG.

  The desiccant air conditioner 11, the first to fourth heat exchange mechanisms 12 to 15, the heater 16, the desiccant rotor 17 (dehumidification mechanism), and the external air conditioner 18 are the same as those of the system 10A in FIG. The heat pump unit 29 is connected to the first controller 36, the three-way valve 46 is connected to the second controller 48, and the three-way valve 53 is connected to the third controller 55.

  The heat recovery heat pump 58 is connected to a heat exchange coil 37 installed in the heat exchanger 30. A circulation pipe 38 through which a refrigerant (water or brine) circulates is connected to the heat recovery heat pump 58. An outgoing pipe 59 and a return pipe 60 are connected to the heat exchange coil 37 installed in the heat exchanger 30. A circulation pump 61 is installed in the return pipe 60. The outgoing pipe 59 and the return pipe 60 are connected to a heat exchange coil 62 installed inside the heat recovery type heat pump 58. A refrigerant (water or brine) circulates between the heat exchange coil 37 and the heat exchange coil 62 via the outgoing pipe 59 and the return pipe 60.

  In the dehumidifying system 10B, heat is exchanged between the evaporator 32 of the heat pump unit 29 and the heat exchange coil 37, and the refrigerant at a predetermined temperature (about 20 ° C.) flowing through the outgoing pipe 59 is brought to a predetermined temperature (about 25 ° C.). And flows into the heat exchange coil 62 through the return pipe 60. Further, heat exchange is performed between the heat exchange coil 62 and the heat recovery heat pump 58, and a refrigerant having a predetermined temperature (about 7 ° C.) flows into the circulation pipe 38.

  FIG. 7 is a diagram illustrating an example of an operation state of the dehumidification system 10B. In FIG. 7, illustration of the dehumidifying air-conditioned space 19 is omitted. In the operating state of FIG. 7, the valve mechanism of the three-way valve 46 is fully opened or opened to a predetermined opening, and the valve mechanism of the three-way valve 53 is fully opened or opened to a predetermined opening. In the first heat exchange mechanism 12, the refrigerant (CO2) circulates in the outgoing pipe 33 and the return pipe 34 by the compressor 28 of the heat pump unit 29, and the air flowing into the dehumidifying function regeneration zone 21 is heated by the condenser 31 to a predetermined temperature. The heated air is made.

  In the dehumidification system 10B, heat exchange is performed between the evaporator 32 of the heat pump unit 29 and the heat exchange coil 37, and refrigerant (water or brine at about 25 ° C.) flowing into the heat exchange coil 37 from the outgoing pipe 59 is predetermined. After being cooled to a temperature (about 20 ° C.), the refrigerant flows into the return pipe 60 and is sent to the heat exchange coil 62 through the return pipe 60. Further, heat exchange is performed between the heat exchange coil 62 and the heat recovery type heat pump 58, and the refrigerant (water or brine at about 12 ° C.) flowing into the heat recovery type heat pump 58 from the circulation pipe 38 has a predetermined temperature (about 7%). The refrigerant is cooled again to the circulation pipe 38 and is sent to the second to fourth heat exchange mechanisms 13 to 15 through the circulation pipe 38.

  The heated air heated by the first heat exchange mechanism 12 (the condenser 31 of the heat pump unit 29) flows through the dehumidifying function regeneration zone 21 and the moisture release area 41 of the desiccant rotor 17. The dehumidifying agent present in the dehumidifying area 41 of the desiccant rotor 17 is heated by heated air, and the moisture adsorbed by the dehumidifying agent is released, so that the dehumidifying function of the desiccant rotor 17 (dehumidifying agent) is regenerated (adsorption by drying). Performance recovery).

  The first controller 36 compares the first measured temperature of the heated air measured by the temperature sensor 39 with the first set temperature (about 120 ° C. to about 130 ° C.), and as a result, the first measured temperature is the first set temperature. When it is within the range, the operation state of the compressor 28 of the heat pump unit 29 is maintained, and when the heater 16 is operating, the operation state of the heater 16 is maintained.

  When the first measured temperature is lower than the first set temperature (the outside air or the return air from the dehumidified air-conditioned space 19 becomes low temperature, or the heat controller unit 29, the heater 16, the heat recovery heat pump 58 In the same manner as in the system 10A of FIG. 1, the heater operating means, the heat amount increasing means, and the work amount increasing means are included, as in the case of the system 10A in FIG. Do at least one. When the first measured temperature exceeds the first set temperature (the outside air or the return air from the dehumidified air-conditioned space 19 becomes high temperature, or the heat pump unit 29, the heater 16, and the heat recovery heat pump 58 are malfunctioning. 1), as in the system 10A of FIG. 1, at least one of a heater stop unit, a heat amount reducing unit, and a work amount reducing unit. To implement.

  Exhaust air flowing through the moisture release area 41 of the desiccant rotor 17 flows into the fourth duct 25 from the dehumidifying function regeneration zone 21 and flows between the refrigerant flowing in the heat exchange coil 42 of the second heat exchange mechanism 13 and the heated air. Then, the heat exchange is performed, and the exchange heat of the heated air is recovered by the second heat exchange mechanism 13. The recovered exchange heat is conveyed to the heat recovery heat pump 58 by the refrigerant.

  In the third heat exchange mechanism 14, heat exchange is performed between the refrigerant flowing through the heat exchange coil 43 and the air flowing into the first duct 22, the air is cooled, and the temperature of the air is lowered. Humidity contained in the air is removed and the humidity of the air is lowered. In the third heat exchange mechanism 14, the exchange heat of the air is recovered. The recovered exchange heat is conveyed to the heat recovery type heat pump 58 by the refrigerant through the second heat exchange mechanism 13.

  When the second controller 48 compares the second measured temperature with the second set temperature (27 ° C. to 29 ° C., preferably 28 ° C.), the second measured temperature is within the range of the second set temperature. The amount of refrigerant flowing into the heat exchange coil 43 is maintained. When the second measured temperature exceeds the second set temperature as a result of comparing the second measured temperature with the second set temperature, the controller 48 (for example, due to a disturbance such as the outside air or the return air in the dehumidified air-conditioned space 19 becomes high temperature). Including the case where the second measured temperature exceeds the second set temperature), the amount of inflow to increase the amount of refrigerant flowing into the third heat exchange mechanism 14 (heat exchange coil 43), as in the system 10A of FIG. Implement the adjustment means. Since the dehumidification system 10B increases the amount of refrigerant flowing into the heat exchange coil 43 when the second measured temperature exceeds the range of the second set temperature, the dehumidification function in the third heat exchange mechanism 14 can be increased. In addition, the air supplied to the desiccant rotor 17 can be reliably cooled (dehumidified).

  The air whose moisture has been removed by the external air conditioner 18 and cooled to a predetermined temperature flows from the external air conditioner 18 into the dehumidifying zone 20 of the desiccant air conditioner 11 and dehumidifying the desiccant rotor 17 located in the dehumidifying zone 20. Flow through zone 40. When the air flows through the dehumidifying zone 40, the humidity of the air is removed by the dehumidifying agent, and dehumidified air (including low dew point air) is created.

  In the 4th heat exchange mechanism 15, heat exchange is performed between the refrigerant | coolant which flows through the heat exchange coil 50, and dehumidified air, and the temperature of dehumidified air falls. In the fourth heat exchange mechanism 15, the exchange heat of the dehumidified air is recovered. The recovered exchange heat is transferred to the heat recovery heat pump 58 by the refrigerant through the third heat exchange mechanism 14 and the second heat exchange mechanism 13. The dehumidified air whose temperature has been lowered is supplied to the dehumidified conditioned space 19 through the second duct 23.

  As a result of comparing the third measured temperature with the third set temperature (about 24 to about 26 ° C., preferably about 25 ° C.), the third controller 55 is within the range of the third set temperature. In this case, the amount of refrigerant flowing into the heat exchange coil 50 is maintained. When the third measured temperature exceeds the third set temperature (including the case where the third measured temperature exceeds the third set temperature due to a disturbance such as the heat released from the dehumidification zone 40 of the desiccant rotor 17), As in the first system 10A, an inflow amount adjusting means for increasing the inflow amount of the refrigerant flowing into the heat exchange coil 50 is implemented. Since the dehumidification system 10B increases the inflow amount of the refrigerant flowing into the heat exchange coil 50 when the third measured temperature of the air measured by the third temperature sensor 56 exceeds the range of the third set temperature, the fourth heat exchange The dehumidified air can be reliably cooled by the mechanism 15, and dehumidified air at the third set temperature (target temperature) whose temperature has decreased can be supplied to the dehumidified air-conditioned space 19.

  In the dehumidification system 10B, the second heat exchange mechanism 13 collects exhaust heat (exchange heat) of the exhaust air flowing through the moisture release area 41 of the desiccant rotor 17 in the dehumidification function regeneration zone 21 using a refrigerant, and performs dehumidification processing. The third heat exchange mechanism 14 collects the exchange heat of the air supplied to the dehumidifying zone 40 of the desiccant rotor 17 in the zone 20 using the refrigerant, and flows through the dehumidifying zone 40 of the desiccant rotor 17 in the dehumidifying treatment zone 20. The exchange heat of the dehumidified air is recovered by the fourth heat exchange mechanism 15 using the refrigerant, and the exchange heat recovered by the second to fourth heat exchange mechanisms 13 to 15 is recovered using the refrigerant. The heat exchange is performed between the heat exchange coil 62 (heat exchange coil 37) and the heat recovery heat pump 58, and the first heat exchange mechanism 12 using the heat pump unit 29 is used. By exchanging heat with the heat exchange coil 37, the exchange heat of the heated air is used for heating the air in the first heat exchange mechanism 12 (condenser 31), so the desiccant rotor 17 (dehumidifying agent) The exhaust heat after regenerating the dehumidifying function, the air supplied to the dehumidifying area 40 of the desiccant rotor 17, and the exchange heat of the dehumidifying air flowing through the dehumidifying area 40 of the desiccant rotor 17 are not wasted. The exchange heat of the air can be reused, and the air supplied to the moisture release area 41 of the desiccant rotor 17 (dehumidifier) is compared with the case where the exchange heat of the air is not used. Can be heated sufficiently.

  The dehumidification system 10B can transmit the exchange heat from the heat recovery heat pump 58 to the heat exchange coil 62 using the refrigerant that has received the exchange heat of the air, and the exchange heat can be transferred to the heat exchange coil of the heat exchanger 30. 37 can be transmitted to the first heat exchange mechanism 12, and the exchange heat can be effectively used in the heat pump unit 29 of the first heat exchange mechanism 12, so that the temperature and humidity of the outside air are low in winter. Even under conditions where the need for cooling (dehumidification) in the third heat exchange mechanism 14 and the fourth heat exchange mechanism 15 is low, the refrigerant can be heated in the second heat exchange mechanism 13, and the heat balance of the refrigeration cycle in the heat pump unit 29. It is possible to improve the operating efficiency (COP) of the heat pump unit 29 by improving the balance, and at the same time, the heat pump unit 29 It can be operated stably. The dehumidification system 10B uses the exchange heat of the air for heating the air in the first heat exchange mechanism 12, so that the air supplied to the moisture release area 41 of the desiccant rotor 17 even in the winter when the temperature of the outside air is low. Can be sufficiently heated, and the dehumidifying function of the desiccant rotor 17 (dehumidifying agent) can be reliably regenerated using the heated air.

  In the dehumidification system 10B, a circulation circuit of exchange heat and cold heat is formed between the first to fourth heat exchange mechanisms 12 to 15 and the heat recovery heat pump 58, and the exchange heat and cold heat are supplied to the circuit using a refrigerant. By circulating, effective use of exchange heat and cold heat can be achieved, and energy saving of the system 10B and stable operation of the heat pump unit 29 can be realized. In the dehumidification system 10B, water or brine is used as a refrigerant used for heat exchange in the heat recovery heat pump 58, and the third heat can be obtained by using a water refrigerant or brine with safety and stability and versatility. When the inflow of the refrigerant is stopped in the exchange mechanism 15 or the fourth heat exchange mechanism 15, or when the inflow of water refrigerant or brine is reduced in the third heat exchange mechanism 15 or the fourth heat exchange mechanism 15, Introducing water refrigerant or brine into other cold piping systems, allowing the water refrigerant or brine to be easily used in other cold piping systems, and making effective use of exhaust heat (exchange heat) via the refrigerant Can do.

  The dehumidification system 10 </ b> B uses the cold (about 7 ° C.) supplied from the heat recovery heat pump 58 after exchanging heat with the first heat exchange mechanism 12 and the heat exchange coil 62, to the dehumidification processing zone 20. By performing heat exchange between the air supplied to the dehumidifying area 40 of the desiccant rotor 17 and the third heat exchange mechanism 14, the air supplied to the dehumidifying area 40 of the desiccant rotor 17 can be cooled. As a result, since the air can be dehumidified, the air whose temperature has been reduced and the moisture has been removed by the cooling function of the third heat exchange mechanism 14 can be supplied to the desiccant rotor 17, and the desiccant rotor 17 ( In the dehumidifying agent, dehumidified air can be easily produced.

  The dehumidification system 10 </ b> B uses the cold (about 7 ° C.) supplied from the heat recovery heat pump 58 after exchanging heat with the first heat exchange mechanism 12 and the heat exchange coil 62, to the dehumidification processing zone 20. Since the dehumidified air can be cooled by exchanging heat between the dehumidified air flowing through the dehumidifying zone 40 of the desiccant rotor 17 and the fourth heat exchanging mechanism 15, the fourth heat exchanging mechanism 15 The dehumidified air whose temperature has decreased can be supplied to the dehumidified air-conditioned space 19, and the dehumidified air-conditioned space 19 can be maintained in a dry state by the dehumidified air, and the dehumidified air-conditioned space 19 can be cooled to the target temperature it can.

  FIG. 8 is a diagram illustrating another example of the operating state of the dehumidification system 10B. In FIG. 8, illustration of the dehumidifying air-conditioned space 19 is omitted. As a result of comparing the second measured temperature with the second set temperature, the second controller 48 maintains the second measured temperature within the range of the second set temperature when the second measured temperature falls below the second set temperature. If possible, an inflow stop means for stopping the inflow of the refrigerant to the third heat exchange mechanism 14 and an inflow amount reduction means for reducing the inflow of the refrigerant to the third heat exchange mechanism 14 as in the system 10A of FIG. Implement either one of When the inflow stop means is implemented, the refrigerant does not flow into the third heat exchange mechanism 14 but flows into the second heat exchange mechanism 13 through the circulation pipe 38 as shown by an arrow L3 in FIG. When the inflow amount reducing means is implemented, the inflow amount of the refrigerant into the third heat exchange mechanism 14 is reduced more than the latest amount. When the second measured temperature exceeds the second set temperature while the valve mechanism of the three-way valve 46 is closed or the opening degree of the valve mechanism of the three-way valve 46 is reduced, the controller 48 is similar to the system 10A of FIG. In addition, either one of the inflow starting means for starting the inflow of the refrigerant to the third heat exchange mechanism 14 and the inflow amount increasing means for increasing the inflow amount of the refrigerant to the third heat exchange mechanism 14 is performed. When the inflow start means is implemented, the refrigerant flows into the heat exchange coil 43 through the forward pipe 44, and heat exchange is resumed between the third heat exchange mechanism 14 and the air. When the inflow amount increasing means is implemented, the amount of refrigerant flowing into the heat exchange coil 43 increases, and the amount of heat exchange between the third heat exchange mechanism 14 and the air increases.

  As a result of comparing the third measured temperature and the third set temperature, the third controller 55 maintains the third measured temperature within the range of the third set temperature when the third measured temperature falls below the third set temperature. If possible, an inflow stop means for stopping the inflow of the refrigerant into the fourth heat exchange mechanism 15 and an inflow amount reduction means for reducing the inflow of the refrigerant into the fourth heat exchange mechanism 15 as in the system 10A of FIG. Implement either one of When the inflow stopping means is implemented, the refrigerant does not flow into the fourth heat exchange mechanism 15 but flows into the second heat exchange mechanism 13 through the circulation pipe 38 as indicated by an arrow L4 in FIG. When the inflow amount reducing means is implemented, the inflow amount of the refrigerant into the fourth heat exchange mechanism 15 is reduced more than the latest amount. When the third measured temperature exceeds the third set temperature while the valve mechanism of the three-way valve 53 is closed or the opening degree of the valve mechanism of the three-way valve 53 is reduced, the controller 48 is similar to the system 10A of FIG. In addition, either one of the inflow starting means for starting the inflow of the refrigerant to the fourth heat exchange mechanism 15 and the inflow amount increasing means for increasing the inflow amount of the refrigerant to the fourth heat exchange mechanism 15 is performed. When the inflow start means is implemented, the refrigerant flows into the heat exchange coil 50 through the forward pipe 51, and heat exchange is resumed between the fourth heat exchange mechanism 15 and the dehumidified air. When the inflow amount increasing means is implemented, the amount of refrigerant flowing into the heat exchange coil 50 increases, and the amount of heat exchange between the fourth heat exchange mechanism 15 and the dehumidified air increases.

  When the second measured temperature falls below the second set temperature range in the winter when the outside air is cold and dry, or when the second measured temperature can be maintained within the second set temperature range, Since it is not necessary to lower (dehumidify) the temperature of the air using the three heat exchange mechanism 14, the inflow of the refrigerant to the third heat exchange mechanism 14 is stopped or flows into the third heat exchange mechanism 14. By reducing the inflow of the refrigerant and introducing the refrigerant (water or brine) into the other cold piping system, the cold heat of the refrigerant can be used in the other cold piping system, and the energy saving of the system 10B and the heat pump unit 29 stable operations can be realized. When the third measured temperature exceeds the third set temperature while the valve mechanism of the three-way valve 46 is closed or the opening degree of the valve mechanism is reduced, the dehumidification system 10B causes the valve mechanism of the three-way valve 46 to be a heat exchange coil. Since it opens again to the 43rd side, or the opening degree of the valve mechanism is increased, the heat exchange between the third heat exchange mechanism 14 and the air is resumed, or between the third heat exchange mechanism 14 and the air. The amount of heat exchange increases, and the air cooled to the second set temperature (target temperature) by the third heat exchange mechanism 14 (air from which moisture has been removed) can be supplied to the desiccant rotor 17 again.

  The dehumidification system 10B uses the fourth heat exchange mechanism 15 when the third measured temperature falls below the third set temperature range, or when the third measured temperature can be maintained within the third set temperature range. Since it is not necessary to cool the dehumidified air, the inflow of the refrigerant into the fourth heat exchange mechanism 15 is stopped, or the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism 15 is reduced, and the refrigerant (water or brine) Is introduced into another cold piping system, the cold heat of the refrigerant can be used for the other cold piping system, and energy saving of the system 10B and stable operation of the heat pump unit 29 can be realized. When the fourth measured temperature exceeds the fourth set temperature while the valve mechanism of the three-way valve 53 is closed or when the opening degree of the valve mechanism is reduced, the dehumidification system 10B turns the valve mechanism of the three-way valve 53 into a heat exchange coil. Since the opening of the valve mechanism is increased again or the opening degree of the valve mechanism is increased, the heat exchange between the fourth heat exchange mechanism 15 and the dehumidified air is resumed, or the fourth heat exchange mechanism 15 and the dehumidified air are The amount of heat exchange during the period increases, and the dehumidified air cooled to the third set temperature (target temperature) by the fourth heat exchange mechanism 15 can be supplied to the dehumidified air-conditioned space 19.

10A dehumidification system 10B dehumidification system (configuration with heat recovery heat pump)
DESCRIPTION OF SYMBOLS 11 Desiccant air conditioner 12 1st heat exchange mechanism 13 2nd heat exchange mechanism 14 3rd heat exchange mechanism 15 4th heat exchange mechanism 16 Heater 17 Desiccant rotor (dehumidification mechanism)
18 External air conditioner 19 Dehumidification air-conditioning space 20 Dehumidification processing zone 21 Dehumidification function regeneration zone 22 1st duct 23 2nd duct 24 3rd duct 25 4th duct 26 Supply air blower 27 Exhaust air blower 28 Compressor (compressor)
29 Heat pump unit (heat pump)
DESCRIPTION OF SYMBOLS 30 Heat exchanger 31 Condenser 32 Evaporator 36 1st controller 37 Heat exchange coil 38 Circulation pipe 39 1st temperature sensor 40 Dehumidification area 41 Moisture release area 42 Heat exchange coil (2nd heat exchange mechanism)
43 Heat exchange coil (third heat exchange mechanism)
46 Three-way valve (for third heat exchange mechanism control)
48 Second controller 49 Second temperature sensor 50 Heat exchange coil (fourth heat exchange mechanism)
53 Three-way valve (4th heat exchange mechanism control)
55 Third Controller 56 Third Temperature Sensor 58 Heat Recovery Heat Pump 62 Heat Exchange Coil (Heat Recovery Heat Pump)

Claims (4)

A dehumidification treatment zone for producing dehumidified air, a dehumidification function regeneration zone for regenerating the dehumidification function, a dehumidification mechanism having a dehumidifier and disposed in the dehumidification treatment zone and the dehumidification function regeneration zone, and an upstream side of the dehumidification mechanism And a first heat exchange mechanism that heats the air supplied to the dehumidification mechanism using a heat pump, and is heated to a predetermined temperature by the first heat exchange mechanism. Is supplied to the dehumidifying mechanism located in the dehumidifying function regeneration zone to regenerate the dehumidifying function of the dehumidifying agent while dehumidifying air produced using the dehumidifying mechanism located in the dehumidifying treatment zone. In the dehumidification system that supplies air to the space,
The dehumidification system is disposed on the upstream side of the dehumidification mechanism located in the dehumidification processing zone, and the second heat exchange mechanism disposed on the downstream side of the dehumidification mechanism located in the dehumidification function regeneration zone, A third heat exchange mechanism for lowering the temperature of the air supplied to the dehumidifying mechanism, and the temperature of the dehumidified air disposed on the downstream side of the dehumidifying mechanism located in the dehumidifying treatment zone and created by the dehumidifying mechanism of the dehumidifying treatment zone Installed in a dehumidifying function regeneration zone between the first heat exchange mechanism and the heater, a fourth heat exchange mechanism for reducing the temperature, a heater for heating the heated air heated to a predetermined temperature by the first heat exchange mechanism Provided between the first temperature sensor for measuring the temperature of the heated air supplied to the dehumidifying mechanism of the dehumidifying function regeneration zone, the dehumidifying mechanism located in the dehumidifying treatment zone, and the third heat exchange mechanism. And a second temperature sensor that measures the temperature of the air supplied to the dehumidifying mechanism of the dehumidifying treatment zone, and a dehumidifier whose temperature is lowered by the fourth heat exchanging mechanism. A third temperature sensor for measuring the temperature of the air,
In the dehumidification system, the second heat exchange mechanism uses the refrigerant supplied from the heat exchanger that exchanges heat with the first heat exchange mechanism, and the heated air flowing through the dehumidification mechanism of the dehumidification function regeneration zone Exchange heat is recovered, exchange heat recovered by the second heat exchange mechanism is supplied from the second heat exchange mechanism to the heat exchanger using the refrigerant, and the exchange heat is supplied to the first heat exchange mechanism. The heat generated in the heat exchanger is supplied to the third heat exchange mechanism from the heat exchanger using the refrigerant, and the cold heat is supplied to the air in the third heat exchange mechanism. The cooling heat is used for cooling, and exchange heat recovered from the air by the third heat exchange mechanism is supplied from the third heat exchange mechanism to the heat exchanger using the refrigerant, and the exchange heat is supplied to the first heat exchange mechanism. When used to heat air in a heat exchange mechanism In addition, the cold heat generated by the heat exchanger is supplied from the heat exchanger to the fourth heat exchange mechanism using the refrigerant, and the cold heat is used for cooling dehumidified air in the fourth heat exchange mechanism. In addition, exchange heat recovered from dehumidified air by the fourth heat exchange mechanism is supplied from the fourth heat exchange mechanism to the heat exchanger using the refrigerant, and the exchange heat is supplied to the first heat exchange mechanism. Used to heat air in
The dehumidification system operates with a heater operating means for operating the heater when the first measured temperature of the heated air measured by the first temperature sensor is below a first set temperature range and the heater is not operating. The first measurement of the heated air measured by the first temperature sensor is performed by performing at least one of a heat amount increasing means for increasing the heat amount of the heater and a work amount increasing means for increasing the work amount of the heat pump. When the temperature exceeds the first set temperature range, a heater stop means for stopping the heater in operation, a heat amount reduction means for reducing the heat amount of the heater in operation, and a work amount reduction means for reducing the work amount of the heat pump And the second measured temperature of the air measured by the second temperature sensor is set to be within the range of the second set temperature. When the inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the third heat exchange mechanism is implemented and the second measured temperature of the air measured by the second temperature sensor is lower than the second set temperature, or When the second measured temperature of the air measured by the two temperature sensors can be maintained within the range of the second set temperature, the inflow amount reducing means for reducing the inflow amount of the refrigerant flowing into the third heat exchange mechanism and the third One of the inflow stopping means for stopping the inflow of the refrigerant to the heat exchange mechanism is performed, and the third measured temperature of the dehumidified air measured by the third temperature sensor is within the range of the third set temperature. Or an inflow amount adjusting means for adjusting an inflow amount of the refrigerant flowing into the fourth heat exchange mechanism, and a third measured temperature of the dehumidified air measured by the third temperature sensor is lower than a third set temperature, or , Measured by the third temperature sensor When the third measured temperature of the dehumidified air can be maintained within the range of the third set temperature, the inflow amount reducing means for reducing the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism and the fourth heat exchange mechanism One of the inflow stop means for stopping the inflow of the refrigerant is implemented . A dehumidification treatment zone for producing dehumidified air, a dehumidification function regeneration zone for regenerating the dehumidification function, a dehumidification mechanism having a dehumidifier and disposed in the dehumidification treatment zone and the dehumidification function regeneration zone, and an upstream side of the dehumidification mechanism And a first heat exchange mechanism that heats the air supplied to the dehumidification mechanism using a heat pump, and is heated to a predetermined temperature by the first heat exchange mechanism. Is supplied to the dehumidifying mechanism located in the dehumidifying function regeneration zone to regenerate the dehumidifying function of the dehumidifying agent while dehumidifying air produced using the dehumidifying mechanism located in the dehumidifying treatment zone. In the dehumidification system that supplies air to the space,
The dehumidification system performs heat exchange with a second heat exchange mechanism disposed downstream of the dehumidification mechanism located in the dehumidification function regeneration zone, and a heat exchanger that performs heat exchange with the first heat exchange mechanism. A heat recovery heat pump; a third heat exchange mechanism that is disposed upstream of the dehumidifying mechanism located in the dehumidifying treatment zone and that lowers the temperature of the air supplied to the dehumidifying mechanism of the dehumidifying treatment zone; and the dehumidifying treatment zone 4th heat exchange mechanism which is arranged in the downstream of the dehumidification mechanism located in, and lowers the temperature of the dehumidification air created by the dehumidification mechanism of the dehumidification treatment zone, and is heated to a predetermined temperature by the first heat exchange mechanism A heater for heating heated air, and a dehumidifying function regeneration zone between the first heat exchange mechanism and the heater are installed, and the temperature of the heated air supplied to the dehumidifying mechanism of the dehumidifying function regeneration zone is measured. A first temperature sensor, a second temperature sensor that is installed between the dehumidification mechanism located in the dehumidification processing zone and the third heat exchange mechanism, and measures the temperature of the air supplied to the dehumidification mechanism of the dehumidification processing zone; A third temperature sensor installed downstream of the fourth heat exchange mechanism and measuring the temperature of the dehumidified air whose temperature has been lowered by the fourth heat exchange mechanism,
In the dehumidification system, the second heat exchange mechanism collects exchange heat of the heated air flowing through the dehumidification mechanism of the dehumidification function regeneration zone using the refrigerant supplied from the heat recovery heat pump, and The exchange heat recovered by the heat exchange mechanism is supplied from the second heat exchange mechanism to the heat recovery heat pump using the refrigerant, and the exchange heat is used for heating the air in the first heat exchange mechanism, The cold generated by the heat recovery heat pump is supplied from the heat recovery heat pump to the third heat exchange mechanism using the refrigerant, and the cold heat is used for cooling the air in the third heat exchange mechanism. The exchange heat recovered from the air by the third heat exchange mechanism is supplied from the third heat exchange mechanism to the heat recovery heat pump using the refrigerant, and the exchange heat is supplied to the first heat exchanger. And the cooling heat generated by the heat recovery heat pump is supplied from the heat recovery heat pump to the fourth heat exchange mechanism using the refrigerant, and the cold heat is supplied to the fourth heat. Use for cooling dehumidified air in the exchange mechanism, and supply the heat recovered from the dehumidified air by the fourth heat exchange mechanism to the heat recovery type heat pump from the fourth heat exchange mechanism using the refrigerant, Utilizing the exchange heat for heating the air in the first heat exchange mechanism,
The dehumidification system operates with a heater operating means for operating the heater when the first measured temperature of the heated air measured by the first temperature sensor is below a first set temperature range and the heater is not operating. The first measurement of the heated air measured by the first temperature sensor is performed by performing at least one of a heat amount increasing means for increasing the heat amount of the heater and a work amount increasing means for increasing the work amount of the heat pump. When the temperature exceeds the first set temperature range, a heater stop means for stopping the heater in operation, a heat amount reduction means for reducing the heat amount of the heater in operation, and a work amount reduction means for reducing the work amount of the heat pump And the second measured temperature of the air measured by the second temperature sensor is set to be within the range of the second set temperature. When the inflow amount adjusting means for adjusting the inflow amount of the refrigerant flowing into the third heat exchange mechanism is implemented and the second measured temperature of the air measured by the second temperature sensor is lower than the second set temperature, or When the second measured temperature of the air measured by the two temperature sensors can be maintained within the range of the second set temperature, the inflow amount reducing means for reducing the inflow amount of the refrigerant flowing into the third heat exchange mechanism and the third One of the inflow stopping means for stopping the inflow of the refrigerant to the heat exchange mechanism is performed, and the third measured temperature of the dehumidified air measured by the third temperature sensor is within the range of the third set temperature. Or an inflow amount adjusting means for adjusting an inflow amount of the refrigerant flowing into the fourth heat exchange mechanism, and a third measured temperature of the dehumidified air measured by the third temperature sensor is lower than a third set temperature, or , Measured by the third temperature sensor When the third measured temperature of the dehumidified air can be maintained within the range of the third set temperature, the inflow amount reducing means for reducing the inflow amount of the refrigerant flowing into the fourth heat exchange mechanism and the fourth heat exchange mechanism One of the inflow stop means for stopping the inflow of the refrigerant is implemented .   The dehumidification system includes an external air conditioner installed between the dehumidification mechanism located in the dehumidification treatment zone and the third heat exchange mechanism, and the external air conditioner supplies air to the dehumidification mechanism of the dehumidification treatment zone The dehumidification system of Claim 1 or Claim 2 which adjusts the temperature of the air while dehumidifying the air to perform.   The dehumidification system according to any one of claims 1 to 3, wherein the refrigerant is water or brine.

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