KR102456292B1 - Dedicated outdoor air system - Google Patents

Abstract

The present invention relates to an exclusive system for outdoor air, capable of maintaining a comfortable indoor environment without installing additional air conditioning and heating devices, comprising: a total heat exchanger (10) for exchanging heat between exhaust air and outdoor air; an aridity and humidity solution storage tank (20) for storing an aridity and humidity solution (HS); a first thermoelectric heat pump (30) including a first thermoelectric element (35); a second thermoelectric heat pump (40) including a second thermoelectric element (45); a first heat-moisture exchanger (50); and a second heat-moisture exchanger (60).

Description

OUTDOOR AIR SYSTEM {DEDICATED OUTDOOR AIR SYSTEM}

The present invention relates to a dedicated outdoor system, and more particularly, to an outdoor dedicated system that can be operated in dehumidification/cooling in summer and humidification/heating in winter using a liquid dehumidifying device.

In order to create a comfortable indoor environment, various types of air conditioning systems are being developed. In general, an air conditioning system cools the interior of a building by cooling process air using a compression refrigeration cycle that induces refrigerant evaporation. In addition, an air conditioning system to which a dehumidification cycle is applied has been developed for dehumidification in summer, and a combined dehumidification and cooling system in which a compression refrigeration system and a liquid dehumidification system are combined as disclosed in the Patent Documents of the following prior art documents has also been proposed.

However, the combined dehumidification cooling system is operated for the main purpose of dehumidifying air. Since the compression-type refrigeration system is used to increase the efficiency of dehumidification, there is a limit to cooling. In addition, since the refrigerant of the compression cooling system flows in only one direction, the supply positions of the cooling heat source and the hot heat source are fixed, and it is difficult to use the coolant for the purpose of air conditioning. Furthermore, since it is for the purpose of dehumidifying air, it is not used during periods when dehumidification is not required, such as in winter, in the case of Korea, which has four distinct seasons. In addition, the existing liquid dehumidifying system performs ventilation, dehumidification, and humidification by controlling the temperature, flow rate, and concentration of the liquid dehumidifying agent.

Accordingly, there is an urgent need for a method to solve the problem of the conventional air conditioning system.

US 10-2004-0101635 A

The present invention is to solve the problems of the prior art described above, and an aspect of the present invention is to provide an external dedicated system in which a thermoelectric module heat pump is used as an auxiliary heat source of a liquid dehumidification device to adjust the temperature of an aqueous dehumidification solution. is to do

An external exclusive system according to an embodiment of the present invention is an external exclusive system for cooling and dehumidifying, or heating and humidifying, external air to supply air into a room, the system comprising: a total heat exchanger for exchanging heat between the exhaust discharged from the room and the outside air; a humidity control solution storage tank for storing the humidity control solution; A first heat absorbing part into which a first humidity control solution, which is a part of the humidity control solution stored in the humidity control solution storage tank, flows, a first heat dissipation part into which a cooling heat source flows, and a first heat absorbing part disposed between the first heat absorbing part and the first heat dissipation part a first thermoelectric heat pump including one thermoelectric element and cooling the first humidity control solution using a Peltier effect; A second heat absorbing part into which a heat source is introduced, a second heat dissipation part into which a second humidity control solution, which is another part of the humidity control solution stored in the humidity control solution storage tank, flows, and the second heat absorbing part and the second heat dissipation part a second thermoelectric heat pump including a second thermoelectric element and heating the second humidity control solution using a Peltier effect; Exchanging heat and moisture between the first inlet air, which is any one of the external air and the exhaust heat exchanged in the total heat exchanger, and any one of the cooled first humidity control solution and the heated second humidity control solution a first heat water exchanger; and a second heat and moisture exchanger for exchanging heat and moisture between the first inlet air and the other second inlet air and the heated second humidity control solution to discharge the heat and moisture, respectively.

In addition, in the dedicated external air system according to an embodiment of the present invention, when the outdoor air is hotter than the exhaust, the outdoor air in the first heat and moisture exchanger exchanges heat and moisture with the first humidity control solution to cool and dehumidify After being supplied, the heat and moisture exchanged with the first humidity control solution flows into the humidity control solution storage tank, and the second humidity control solution is regenerated by exchanging heat and moisture with the exhaust in the second heat and moisture exchanger, and the outdoor air When is lower than the exhaust, the outside air in the first heat and moisture exchanger may be supplied with heat and moisture after heat and moisture exchange with the second humidity control solution to be heated and humidified.

In addition, in the external exclusive system according to an embodiment of the present invention, a cold water storage tank for storing the cooling heat source; and a hot water storage tank for storing the heat source.

In addition, in the external exclusive system according to an embodiment of the present invention, the first inlet air supplied from the total heat exchanger to the first heat and moisture exchanger is cooled by exchanging heat with the cooling heat source supplied from the cold water storage tank. wealth; and a first heating unit configured to heat the second inlet air supplied from the total heat exchanger to the second heat and moisture exchanger by exchanging heat with the heat source supplied from the hot water storage tank.

In addition, in the external exclusive system according to an embodiment of the present invention, the first heat absorbing unit includes a first heat absorbing flow path through which the first dehumidifying solution passes, and a portion of the cooling heat source supplied from the cold water storage tank through which it passes. 2 heat absorbing flow paths, wherein the second heat dissipation unit includes a first heat dissipation path through which the second dehumidifying solution passes, and a second heat dissipation path through which some of the heat sources supplied from the hot water storage tank pass; The cooling heat source cooled by passing through the second heat absorbing passage flows through the cooling unit to return to the cold water storage tank, and the heat source heated through the second heat dissipation passage flows through the first heating unit to the hot water tank. can be returned

In addition, in the dedicated external air system according to an embodiment of the present invention, when the external air is higher than the exhaust, the external air flowing through the cooling unit is the first humidity control solution and heat and moisture in the first heat and moisture exchanger The first humidity control solution, which is exchanged and cooled and dehumidified, is supplied, and heat and moisture are exchanged, flows into the humidity control solution storage tank, and the second humidity control solution is exchanged with the exhaust in the second heat and moisture exchanger for heat and moisture. Regenerated, when the outdoor air is lower than the exhaust, the outdoor air that has flowed through the first heating part is heat and moisture exchanged with the second humidity control solution in the second heat and moisture exchanger to be heated and humidified, and then supplied air have.

In addition, in the dedicated outdoor system according to the embodiment of the present invention, when the outdoor air is higher than the exhaust, some of the heat sources are introduced into the first heat absorbing part, and the cooling heat source is introduced into the first heat dissipating part. , thermoelectric power can be generated by the Seebeck effect.

In addition, in the dedicated external air system according to an embodiment of the present invention, when the outdoor air is lower than the exhaust, the outdoor air that has flown through the first heating unit is branched into two, and the branched part of the outdoor air is the After being heated and humidified in the second heat and moisture exchanger, the air is supplied, and the branched outside air is supplied to the first heat and moisture exchanger, and heat and moisture are exchanged with the second moisture control solution to be supplied after heating and humidification. can

In addition, in the dedicated external air system according to an embodiment of the present invention, when the outdoor air is lower than the exhaust temperature, the outdoor air is branched into two, and the branched first outdoor air is part of the first heating unit and the The second heat and moisture exchanger is sequentially flowed through to supply air after heating and humidification, and the second part of the branched second external air is supplied to the first heat and moisture exchanger, and heat and moisture are exchanged with the second humidity control solution to heat and After humidification, it can be supplied with air.

In addition, in the dedicated outdoor system according to an embodiment of the present invention, the second outdoor air supplied from the total heat exchanger to the first heat and moisture exchanger is heated by exchanging heat with the heat source supplied from the hot water storage tank. It may further include a heating unit.

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

Prior to this, the terms or words used in the present specification and claims should not be construed in a conventional and dictionary meaning, and the inventor may properly define the concept of the term to describe his invention in the best way. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, the thermoelectric module heat pump is used as an auxiliary heat source of the liquid type dehumidifying device to adjust the temperature of the dehumidifying aqueous solution, thereby removing the unstable element of the liquid type dehumidifying device and effectively using outside air for indoor ventilation, air conditioning, heating and cooling, It can be operated to enable dehumidification and humidification, and it is possible to maintain a comfortable indoor environment without installing additional heating and cooling devices in the room.

1 is a block diagram of an external dedicated system according to a first embodiment of the present invention.
2 to 4 are explanatory views for explaining the operation of the external dedicated system according to the first embodiment of the present invention.
5 is a block diagram of an external dedicated system according to a second embodiment of the present invention.
6 to 9 are explanatory views for explaining the operation of the external dedicated system according to the second embodiment of the present invention.
10 is a block diagram of an external dedicated system according to a third embodiment of the present invention.
11 to 12 are explanatory views for explaining the operation of the external dedicated system according to the third embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings and preferred embodiments. In the present specification, in adding reference numbers to the components of each drawing, it should be noted that only the same components are given the same number as possible even though they are indicated on different drawings. In addition, terms such as “first” and “second” are used to distinguish one component from another, and the component is not limited by the terms. Hereinafter, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a dedicated outdoor system according to a first embodiment of the present invention, and FIGS. 2 to 4 are explanatory diagrams for explaining the operation of an outdoor dedicated system according to a first embodiment of the present invention.

As shown in FIGS. 1 to 4 , the external exclusive system according to the first embodiment of the present invention is an external exclusive system for cooling and dehumidifying, or heating and humidifying, external air to supply air into the room, the exhaust discharged from the room The first humidity control solution (HS1), which is a part of the total heat exchanger (10) for exchanging heat with the outside air, the humidity control solution storage tank (20) for storing the humidity control solution (HS), and the humidity control solution (HS) stored in the humidity control solution storage tank (20) flows in A first heat absorbing part 31 to be used, a first heat dissipating part 33 into which a cooling heat source CW is introduced, and a first thermoelectric element disposed between the first heat absorbing part 31 and the first heat dissipating part 33 ( 35), a first thermoelectric heat pump 30 for cooling the first humidity control solution HS1 using the Peltier effect, a second heat absorbing part 41 into which a heat source HW flows, and a humidity control solution storage tank 20 ), a second heat dissipation unit 43 into which the second humidity control solution HS2, which is another part of the humidity control solution HS stored in the , flows in, and a second heat sink disposed between the second heat absorbing unit 41 and the second heat dissipation unit 43 . The second thermoelectric heat pump 40 including two thermoelectric elements 45 and heating the second humidity control solution HS2 using the Peltier effect, the first one of the external air and exhaust heat exchanged in the total heat exchanger 10 . A first heat and moisture exchanger 50 for exchanging heat and moisture between the inlet air and any one of the cooled first humidity control solution HS1 and the heated second humidity control solution HS2 to discharge, respectively, and the first inflow and a second heat and moisture exchanger 60 for exchanging heat and moisture between the air and the other second inlet air and the heated second humidity control solution HS2 and discharging the heat and moisture, respectively.

The present invention relates to an outdoor dedicated system, which is an air conditioning system that performs ventilation, cooling/dehumidification, and heating/humidification by cooling and dehumidifying, or heating and humidifying, external air and supplying it to a room. It includes a storage tank 20 , a first thermoelectric heat pump 30 , a second thermoelectric heat pump 40 , a first hot water exchanger 50 , and a second hot water exchanger 60 .

The total heat exchanger 10 exchanges heat between the exhaust, which is the indoor air discharged from the room, and the outdoor air, which is supplied from the outside to the room, to primarily control the temperature and humidity of the outside air. Here, when the outside air is hotter than the exhaust, for example, in summer, the outside air passing through the total heat exchanger 10 is cooled and dehumidified. Conversely, when the outside air is lower than the exhaust, for example, in winter, the outside air passing through the total heat exchanger 10 is heated and humidified. While passing through the total heat exchanger (10), the temperature and humidity of the external air, which is primarily controlled in temperature and humidity, is additionally controlled while flowing through the first heat and moisture exchanger (50) and/or the second heat and moisture exchanger (60).

The humidity control solution storage tank 20 is a storage tank for storing the humidity control solution HS. Here, the humidity control solution (HS) is a solution in which a humidity control agent such as lithium chloride (LiCl), calcium chloride (CaCl ₂ ), lithium bromide (LiBr), etc. is dissolved, and is stored in the humidity control solution storage tank 20 and then stored in the first hot water exchanger ( 50) and/or the second heat and moisture exchanger 60 is flowed through and returned to the humidity control solution storage tank 20 again. When the humidity control solution HS and air come into contact, the humidity control solution HS may supply heat and moisture to the air or absorb heat and moisture from the air due to a difference in water vapor partial pressure. The partial pressure of water vapor in the humidity control solution HS increases as the concentration decreases and the temperature increases. can be Conversely, when the partial pressure of water vapor in the humidity control solution HS is lower than the partial pressure of water vapor in the air, moisture may be supplied to the humidity control solution HS to dehumidify the air. On the other hand, before the dehumidification solution stored in the humidity control solution storage tank 20 is supplied to the first heat and moisture exchanger 50 and/or the second heat and moisture exchanger 60, the first humidity control solution HS1, which is a part of it, is One thermoelectric heat pump 30 flows through, and the second humidity control solution HS2, which is another part, flows through the second thermoelectric heat pump 40, respectively.

The first thermoelectric heat pump 30 cools the first humidity control solution HS1 using a Peltier effect. The Peltier effect is a phenomenon in which when two types of conductors are combined and current flows, one contact point heats up and the temperature rises, and the other contact point absorbs heat and lowers the temperature. The first thermoelectric heat pump 30 has the first thermoelectric element 35 interposed therebetween, the first heat absorbing part 31 and the first heat dissipating part 33 are disposed to face each other, and a power supply (not shown) for supplying current not) is associated with Here, the first humidity control solution HS1 passes through the first heat absorbing unit 31 , and the cooling heat source CW passes through the first heat dissipation unit 33 . At this time, when a current is applied, the first humidity control solution HS1 is cooled due to the Peltier effect of the first thermoelectric element 35 . The cooled first humidity control solution HS1 may be supplied to the first heat and moisture exchanger 50 .

Meanwhile, the cooling heat source CW may be stored in the cold water storage tank 70 as cold water. Here, the cold water may be made through evaporative cooling in the cooling tower and supplied to the cold water storage tank 70 .

The second thermoelectric heat pump 40 heats the second humidity control solution HS2 using the Peltier effect. In the second thermoelectric heat pump 40 , the second thermoelectric element 45 is disposed between the second heat absorbing part 41 and the second heat dissipating part 43 , and is connected to a power supply (not shown) for supplying current. . Here, the heat source HW passes through the second heat absorbing unit 41 , and the second humidity control solution HS2 passes through the second heat dissipation unit 43 . At this time, when a current is applied, the second humidity control solution HS2 is heated due to the Peltier effect of the second thermoelectric element 45 . The second humidity control solution HS2 heated in this way may be supplied to the first hot water exchanger 50 and the second hot water exchanger 60 , or to the second hot water exchanger 60 .

Meanwhile, the heat source HW is hot water and may be stored in the hot water storage tank 80 . Here, the hot water may be made from waste heat of a small cogeneration system. A small cogeneration system is a small power generation system of less than 100 kW among systems that generate heat during electricity production, such as fuel cells, organic ranking cycles, and solar/thermal panels. The waste heat of less than 60 ~ 70 ℃ generated here has a low temperature to be directly utilized for industrial and residential purposes, but it can be utilized in the present invention. While the small cogeneration system is always operated to produce electricity, since the heat source (HW) of the hot water storage tank 80 is not always used in the external dedicated system of the present invention, the heat source (HW) is continuously maintained at a high temperature. In this case, the temperature of the heat source (HW) supplied from the small cogeneration system may be cooled to the ambient temperature through a radiator (not shown).

The first heat and moisture exchanger 50 is a device for exchanging heat and moisture between the inlet air and the humidity control solution HS by bringing the inlet air into contact with the humidity control solution HS. A filter medium for increasing the contact area between the inlet air and the humidity control solution (HS) may be disposed inside the heat water exchanger. The first inflow air flowing into the first heat and moisture exchanger (50) is any one of external air and exhaust heat exchanged in the total heat exchanger (10). On the other hand, the humidity control solution HS exchanging heat and moisture with the first inlet air is the first humidity control solution HS1 cooled by the first thermoelectric heat pump 30 or in the second thermoelectric heat pump 40 . It may be the heated second humidity control solution (HS2). Here, the outside air exchanged with heat and moisture is supplied to the room, and the humidity control solution HS is returned to the humidity control solution storage tank 20 .

The second heat and moisture exchanger 60 is a device for exchanging heat and moisture between the inlet air and the humidity control solution HS by contacting the inlet air with the humidity control solution HS, and a filter medium may be disposed therein. The second inlet air flowing into the second heat and moisture exchanger 60 is one other than the first inlet air among the outdoor air and exhaust heat exchanged in the total heat exchanger 10 , and when the outside air is introduced, heat and moisture are exchanged After that, air is supplied to the room. On the other hand, the humidity control solution (HS) exchanged with the second inlet air for heat and moisture is the second humidity control solution (HS2) heated by the second thermoelectric heat pump 40, and after heat and moisture exchange, the humidity control solution storage tank ( 20) is returned.

Hereinafter, an operation method according to the cooling/dehumidifying mode and the heating/humidifying mode will be described.

Referring to FIG. 2 , the cooling/dehumidifying mode is a driving method of supplying air by cooling and dehumidifying the outside air when the outside air is hotter than the exhaust, such as in summer. In the cooling/dehumidifying mode, outside air is primarily cooled and dehumidified through total heat exchange with indoor air (exhaust) in the total heat exchanger 10 , and then supplied to the first heat and moisture exchanger 50 . In addition, the first humidity control solution HS1 cooled while passing through the first thermoelectric heat pump 30 in the humidity control solution storage tank 20 is supplied to the first heat and moisture exchanger 50, and the outside air is cooled and dehumidified once again. is supplied indoors. Meanwhile, the first humidity control solution HS1 that has passed through the first heat and moisture exchanger 50 is returned to the humidity control solution storage tank 20 again. At this time, since the concentration of the first humidity control solution HS1 in which the outside air is dehumidified becomes diluted, it is necessary to regenerate the concentration. Therefore, the second humidity control solution (HS2) heated while passing through the second thermoelectric heat pump 40 from the humidity control solution storage tank 20, and the exhaust passing through the total heat exchanger 10 are respectively transferred to the second heat and moisture exchanger 60 The moisture of the second humidity control solution HS2 is transferred to the exhaust, and the second humidity control solution HS2 is regenerated and then returned to the humidity control solution storage tank 20 .

Referring to FIG. 3 , the heating/humidifying mode is a driving method in which outdoor air is heated and humidified to supply air when the outdoor air is lower than exhaust, such as in winter. In the heating/humidification mode, outside air is primarily heated and humidified through total heat exchange with indoor air (exhaust) in the total heat exchanger 10 , and then supplied to the first heat and moisture exchanger 50 . Here, the second humidity control solution HS2 heated while passing through the second thermoelectric heat pump 40 in the humidity control solution storage tank 20 is supplied to the first heat moisture exchanger 50, and from the second humidity control solution HS2 Heat and moisture are transferred to the outside air, and the outside air is heated and humidified before being supplied. The second humidity control solution HS2 passing through the first heat and moisture exchanger 50 is returned to the humidity control solution storage tank 20 . At this time, since the concentration of the second humidity control solution HS2 is increased, hourly water can be supplied to the humidity control solution storage tank 20 to lower the concentration to an appropriate level. On the other hand, the humidity control solution (HS) is not supplied to the second hot water exchanger (60), and the exhaust that has passed through the total heat exchanger (10) is discharged as it is through the second hot water exchanger (60).

In addition, in the heating/humidification mode, it is not necessary to supply the first humidity control solution HS1 and the cooling heat source CW to the first thermoelectric heat pump 30 when heating and humidifying the outside air. Accordingly, as shown in FIG. 4 , thermoelectric power generation can be performed using the first thermoelectric heat pump 30 that is not used for heating and humidifying the outside air. Specifically, in the heating/humidifying mode, a portion of the heat source (HW) supplied to the second thermoelectric heat pump 40 flows into the first heat absorbing part 31 of the first thermoelectric heat pump 30, so that the first heat dissipation By guiding the cooling heat source CW to flow into the unit 33 to form a temperature difference between the first thermoelectric elements 35, thermoelectric power can be generated by the Seebeck effect. Here, the cooling heat source (CW) to the first heat absorbing part 31 and the warm heat source (HW) to the first heat dissipating part 33 may flow in, and the cooling heat source CW is necessarily from the cold water storage tank 70, The heat source HW does not have to be supplied from the hot water storage tank 80 .

5 is a block diagram of a dedicated outdoor system according to a second embodiment of the present invention, and FIGS. 6 to 9 are explanatory diagrams for explaining the operation of an outdoor dedicated system according to a second embodiment of the present invention.

5 to 8 , the external exclusive system according to the second embodiment of the present invention may further include a cooling unit 90 , and a first heating unit 100 .

The cooling unit 90 heats the first inflow air supplied from the total heat exchanger 10 to the first hot water exchanger 50 with the cooling heat source CW supplied from the cold water storage tank 70 to cool it. Here, the cooling unit 90 may be implemented as a cooling coil, but is not necessarily limited thereto.

The first heating unit 100 heats the second inlet air supplied from the total heat exchanger 10 to the second heat and moisture exchanger 60 by exchanging heat with the hot heat source HW supplied from the hot water storage tank 80 . Here, the first heating unit 100 may be implemented as a heating coil, but is not necessarily limited thereto.

Referring to FIG. 6 , in the cooling/dehumidifying mode, the external air that has been primarily cooled and dehumidified through heat exchange with indoor air (exhaust) in the total heat exchanger 10 is additionally cooled while flowing through the cooling unit 90 . The outside air that has passed through the cooling unit 90 is supplied to the first heat and moisture exchanger 50, where the first humidity control solution (HS1) cooled in the humidity control solution storage tank 20 through the first thermoelectric heat pump 30 and It is cooled and dehumidified again through heat and moisture exchange before being supplied with air. As the outside air is additionally cooled in the cooling unit 90 , the dehumidification efficiency in the first heat and moisture exchanger 50 is improved. In addition, the indoor air heat-exchanged in the total heat exchanger (10) is additionally heated while flowing through the first heating unit (100) and then supplied to the second heat and moisture exchanger (60), where it passes through the second thermoelectric heat pump (40). Heat and moisture are exchanged with the heated second humidity control solution HS2 to regenerate the second humidity control solution HS2. At this time, as the indoor air is further heated, the relative humidity of the indoor air is lowered, and the amount of water vapor that can be transferred increases, so that the regeneration efficiency in the second heat-moisture exchanger (60) is improved.

Referring to FIG. 7 , in the heating / humidification mode, the first heated and humidified outdoor air passing through the total heat exchanger 10 is additionally heated while flowing through the first heating unit 100 , and then the second heat and moisture exchanger 60 ), where heat and moisture are exchanged with the second humidity control solution HS2 heated through the second thermoelectric heat pump 40 to be heated and humidified. The heated and humidified outdoor air is supplied to the room, and the second humidity control solution HS2 is returned to the humidity control solution storage tank 20 . When the outdoor air is additionally heated through the first heating unit 100 and then supplied to the second hot water exchanger 60 , the relative humidity of the outdoor air is lowered and the amount of water vapor that can be delivered increases, so the second hot water exchanger The humidification efficiency in (60) is improved. On the other hand, in the heating/humidification mode, the cooling heat source (CW) is not supplied to the cooling unit (90), the dehumidifying solution is not supplied to the first heat and moisture exchanger (50), and the indoor air passing through the total heat exchanger (10) is It simply passes through the cooling unit 90 and the first heat and moisture exchanger 50 and is exhausted.

Here, outside air flows through the cooling unit 90 in the cooling/dehumidifying mode and exhausted through the first hot water exchanger 50, and in the heating/humidifying mode, flows through the first heating unit 100 and flows through the second hot water exchanger Since it is exhausted through (60), a pipe line facility is implemented so that the flow path of outside air can be changed. For example, the first damper (D1) for changing the flow path of outdoor air and indoor air before being introduced into the total heat exchanger (10), the outdoor air passing through the first heat water exchanger (50) and the second heat water exchanger (60) And a second damper D2 for changing the flow path of the exhaust may be installed. However, the pipeline facility is not necessarily limited to the first damper D1 and the second damper D2.

Meanwhile, as in the first embodiment of the present invention, thermoelectric power may be generated using the first thermoelectric heat pump 30 in the heating/humidifying mode.

In addition, in the heating/humidifying mode, the external dedicated system according to the second embodiment of the present invention uses not only the second heat and moisture exchanger 60 but also the first heat and moisture exchanger 50 to heat and humidify the outside air. can be rushed In this case, since the heat and moisture exchange area is increased, humidification efficiency can be improved.

For example, as shown in FIG. 8 , the outdoor air that has flowed through the first heating unit 100 is branched into two, and some of the branched outdoor air is a second humidity control solution (HS2) heated by the second thermoelectric heat pump 40 . After being heated and humidified while passing through the supplied second heat and moisture exchanger 60 , the supplied external air may be supplied, and the branched outside air may be supplied to the first heat and moisture exchanger 50 . Here, by supplying the second humidity control solution HS2 heated by the second thermoelectric heat pump 40 to the first heat water exchanger 50 , the second external air may be heated and humidified and then supplied. The room air may be exhausted after passing through the total heat exchanger.

As another example, as shown in Figure 9, the outside air before or after passing through the total heat exchanger 10 is branched into two, and some of the branched outside air is a first heating unit 100 and a second heat and moisture exchanger ( 60) is supplied after being heated and humidified while sequentially flowing through, the other part of the outdoor air may be supplied to the first heat and moisture exchanger (50). Here, by supplying the second humidity control solution HS2 heated by the second thermoelectric heat pump 40 to the first heat water exchanger 50 , the second external air may be heated and humidified and then supplied. At this time, a second heating unit 110 for heating the second outdoor air supplied from the total heat exchanger 10 to the first heat and moisture exchanger 50 may be installed. The second heating unit 110 may heat the second outdoor air by exchanging heat with the heat source HW supplied from the hot water storage tank 80 with the second outdoor air. The second heating unit 110 may be implemented as a heating coil, but is not limited thereto.

10 is a block diagram of a dedicated outdoor system according to a third embodiment of the present invention, and FIGS. 11 to 12 are explanatory diagrams for explaining the operation of an outdoor dedicated system according to a third embodiment of the present invention.

The cooling unit 90 and the first heating unit 100 of the external exclusive system according to the second embodiment of the present invention are a cold heat source (CW) and a hot heat source (HW) directly from the cold water storage tank 70 and the hot water storage tank 80 . ) is supplied, while the external dedicated system according to the third embodiment of the present invention as shown in FIGS. 10 to 13 is a cooling heat source through the first thermoelectric heat pump 30 and the second thermoelectric heat pump 40 . (CW) and heat source (HW) can be supplied. Hereinafter, differences from the second embodiment will be mainly described, and descriptions of overlapping matters will be omitted or simply described.

Here, the first heat absorbing part 31 of the first thermoelectric heat pump 30 is a first heat absorbing flow path through which the first dehumidifying solution passes, and a part of the cooling heat source (CW) supplied from the cold water storage tank 70 passes. and a second endothermic flow path. The cooling heat source CW cooled while passing through the second heat absorbing passage flows through the cooling unit 90 and then returns to the cold water storage tank 70 .

In addition, the first heat dissipation unit 33 of the second thermoelectric heat pump 40 includes a first heat dissipation passage through which the second dehumidifying solution passes, and a portion of the heat source (HW) supplied from the hot water storage tank 80 through which it passes. and a second heat dissipation flow path. The heat source HW heated while passing through the second heat dissipation passage flows through the first heating unit 100 and then returns to the hot water storage tank 80 again.

Referring to FIG. 11 , in the cooling/dehumidifying mode, the outdoor air primarily cooled and dehumidified through heat exchange with indoor air (exhaust) in the total heat exchanger 10 is cold heat supplied from the second heat absorbing passage in the cooling unit 90 . After heat exchange with the source (CW) is additionally cooled, and the first heat and moisture exchanger (50) is supplied from the first heat absorption flow path and cooled and dehumidified again through heat and moisture exchange with the cooled first humidity control solution (HS1) is supplied In addition, the indoor air heat-exchanged in the total heat exchanger (10) is additionally heated by heat exchange with the heat source (HW) supplied from the second heat dissipation flow path in the first heating unit (100), and in the second heat and moisture exchanger (60) Heat and moisture are exchanged with the heated second humidity control solution HS2 supplied from the first heat dissipation flow path to regenerate the second humidity control solution HS2.

Referring to FIG. 12 , in the heating/humidifying mode, the primary heated and humidified external air passing through the total heat exchanger 10 is a heat source (HW) supplied from the second heat dissipation flow path in the first heating unit 100 and Heat exchange is performed to additionally heat, and heat and moisture are exchanged with the second humidity control solution HS2 supplied from the first heat dissipation flow path in the second heat and moisture exchanger 60 to heat and humidify. The heated and humidified outdoor air is supplied to the room, and the second humidity control solution HS2 is returned to the humidity control solution storage tank 20 .

Meanwhile, thermoelectric power generation using the first thermoelectric heat pump 30 in the heating/humidifying mode is possible.

In addition, in the heating/humidification mode, not only the second hot water exchanger 60 but also the first hot water exchanger 50 may be used together to heat and humidify the outside air and then supply air.

The flow of the external air, exhaust, humidity control solution, cooling heat source, and hot heat source is controlled through a pipe line, a valve, and the like, and a controller may be provided as an electronic device for controlling the flow.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto, and by those of ordinary skill in the art within the technical spirit of the present invention. It is clear that the modification or improvement is possible.

All simple modifications and variations of the present invention belong to the scope of the present invention, and the specific protection scope of the present invention will be made clear by the appended claims.

10: total heat exchanger 20: humidity control solution control tank
30: first thermoelectric heat pump 31: first heat absorbing part
33: first heat dissipation unit 35: first thermoelectric element
40: second thermoelectric heat pump 41: second heat absorbing part
43: second heat dissipation unit 45: second thermoelectric element
50: first heat water exchanger 60: second heat water exchanger
70: cold water storage tank 80: hot water storage tank
90: cooling unit 100: first heating unit
110: second heating unit HS: humidity control solution
HS1: 1st humidity control solution HS2: 2nd humidity control solution
CW: Cooling heat source HW: Warm heat source
D1: first damper D2: second damper

Claims (10)

In the dedicated outdoor system for cooling and dehumidifying, or heating and humidifying outdoor air to supply air to the room,
a total heat exchanger for exchanging the exhaust air discharged from the room and the outdoor air;
a humidity control solution storage tank for storing the humidity control solution;
A first heat absorbing part into which a first humidity control solution, which is a part of the humidity control solution stored in the humidity control solution storage tank, flows, a first heat dissipation part into which a cooling heat source flows, and a first heat absorbing part disposed between the first heat absorbing part and the first heat dissipation part a first thermoelectric heat pump including one thermoelectric element and cooling the first humidity control solution using a Peltier effect;
A second heat absorbing part into which a heat source is introduced, a second heat dissipation part into which a second humidity control solution, which is another part of the humidity control solution stored in the humidity control solution storage tank, flows, and the second heat absorbing part and the second heat dissipation part a second thermoelectric heat pump including a second thermoelectric element and heating the second humidity control solution using a Peltier effect;
Exchanging heat and moisture between the first inlet air, which is any one of the external air and the exhaust heat exchanged in the total heat exchanger, and any one of the cooled first humidity control solution and the heated second humidity control solution a first heat water exchanger; and
and a second heat and moisture exchanger for exchanging heat and moisture between the first inlet air and the other second inlet air and the heated second humidity control solution and discharging the heat and moisture, respectively.
The method according to claim 1,
When the outside air is hotter than the exhaust, the outside air is cooled and dehumidified by exchanging heat and moisture with the first humidity control solution in the first heat and moisture exchanger to supply air, and heat and moisture are exchanged with the first humidity control solution is introduced into the humidity control solution storage tank, and the second humidity control solution is regenerated by exchanging heat and moisture with the exhaust in the second heat and moisture exchanger,
When the outdoor air is at a lower temperature than the exhaust, the outdoor air is heated and humidified by heat and moisture exchange with the second humidity control solution in the first heat and moisture exchanger, and then air is supplied.
The method according to claim 1,
a cold water storage tank for storing the cold heat source; and
The external dedicated system further comprising a; hot water storage tank for storing the heat source.
4. The method according to claim 3,
a cooling unit cooling the first inlet air supplied from the total heat exchanger to the first heat and moisture exchanger by heat exchange with the cooling heat source supplied from the cold water storage tank; and
and a first heating unit configured to heat the second inlet air supplied from the total heat exchanger to the second heat and moisture exchanger by exchanging heat with the heat source supplied from the hot water storage tank.
5. The method according to claim 4,
The first heat absorbing part includes a first heat absorbing flow path through which the first humidity control solution passes, and a second heat absorbing flow path through which some of the cooling heat sources supplied from the cold water storage tank pass,
The second heat dissipation unit includes a first heat dissipation flow path through which the second humidity control solution passes, and a second heat dissipation path through which some of the heat sources supplied from the hot water storage tank pass,
The cooling heat source cooled by passing through the second heat absorbing passage flows through the cooling unit and returns to the cold water storage tank,
The heat source heated through the second heat dissipation passage flows through the first heating unit and is returned to the hot water storage tank.
6. The method according to claim 4 or 5,
When the outdoor air is hotter than the exhaust, the outdoor air that has passed through the cooling unit exchanges heat and moisture with the first humidity control solution in the first heat and moisture exchanger to be cooled and dehumidified, then supplied air, and heat and moisture are exchanged The first humidity control solution flows into the humidity control solution storage tank, and the second humidity control solution is regenerated by exchanging heat and moisture with the exhaust in the second heat and moisture exchanger,
When the outdoor air is at a lower temperature than the exhaust, the outdoor air flowing through the first heating part is heat and moisture exchanged with the second humidity control solution in the second heat and moisture exchanger, and then heated and humidified, and then supplied to an external dedicated system.
3. The method according to claim 2,
When the outside air is hotter than the exhaust, a part of the heat source flows into the first heat absorbing part, and the cold heat source flows into the first heat dissipation part, and thermoelectric power is generated by the Seebeck effect.
7. The method of claim 6,
When the outdoor air is lower than the exhaust, the outdoor air that has flown through the first heating unit is branched into two, and a part of the branched outdoor air is supplied after being heated and humidified in the second heat and moisture exchanger,
The other part of the branched outdoor air is supplied to the first heat and moisture exchanger, and heat and moisture are exchanged with the second humidity control solution to be heated and humidified, and then the external air is supplied.
7. The method of claim 6,
When the outdoor air is at a lower temperature than the exhaust, the outdoor air is bifurcated, and the branched first outdoor air is heated and humidified by sequentially flowing through the first heating unit and the second hot water exchanger. is supplied,
The second part of the branched outdoor air is supplied to the first heat and moisture exchanger, and heat and moisture are exchanged with the second humidity control solution to be heated and humidified, and then air is supplied.
10. The method of claim 9,
and a second heating unit configured to heat the second outdoor air supplied from the total heat exchanger to the first heat and moisture exchanger by exchanging heat with the hot heat source supplied from the hot water storage tank.

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