JP2005257140A - Solar heat pump system and operation method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a solar heat pump system capable of collecting solar heat with high controllability by low conveying power, obtaining the heat of high temperature and high utility value by low energy by the necessary amount, utilizing the collected solar heat only by the necessary amount, and uniformly cooling a solar battery panel. <P>SOLUTION: This solar heat pump system comprises a heat absorbing/radiating cycle device having a heat collecting unit 1 for collecting the solar heat, a heat absorbing/radiating unit 2 thermally connected with the heat collecting unit 1, absorbing a volatile medium and circulating the vapor of the volatile medium inside, a storage part 5 for condensing the vapor and storing the same, and a volatile medium flow channel 3 for connecting the heat absorbing/radiating unit 2 and the storage part 5, and a heat pump cycle device having a compressor 7, a radiator 8, an expansion valve 9 and an evaporator 6 thermally connected with the storage part 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a solar heat pump system using solar heat using a heat pump means and an operation method thereof.

  Conventionally, solar systems that collect solar heat and use it for hot water supply have been put into practical use. In recent years, a hybrid collector in which a solar cell panel and a solar heat collector are combined has been put into practical use by applying the same configuration.

  Solar systems and hybrid collectors that use this type of solar heat take the form of sensible heat transfer, in which the heat collected by the solar heat collector is transferred using a working fluid such as hot water or antifreeze. A structure in which the transported heat is once stored in a heat storage tank and used as a heat source for hot water supply or the like has been proposed and partially put into practical use (for example, see Patent Document 1). This configuration also has an effect of cooling the solar cell panel, and also has an effect of suppressing to some extent a decrease in power generation efficiency of the solar cell panel due to a temperature rise due to solar radiation.

  Moreover, the structure which transports solar heat with water similarly to the above, stores it in a heat storage tank, and performs hot water supply and heating with the heat pump using it as a heat source is also shown (for example, refer patent document 2).

In addition, a heat transfer method that uses latent heat of vaporization such as water vapor without using sensible heat such as water or antifreeze has been developed mainly for refrigeration and the like (see, for example, Non-Patent Document 1). . This solar heat absorption refrigeration apparatus has the basic configuration shown in FIG. 13, for example. During the daytime, the water adsorbed by the adsorbent 71 provided in contact with the heat collecting section 70 irradiated with sunlight is heated during solar radiation. The water is condensed and stored in the condenser 72 while releasing heat through the path. On the other hand, since the adsorbent 71 is dried and the adsorbent 71 is cooled at night, the condensed water evaporates and moves to the adsorbent 71 side, and at the same time, the condensed water in the condenser 72 is cooled by the latent heat of vaporization. Is done. And this cooling heat is utilized in the daytime.
JP-A-10-281562 (for example, FIGS. 1 and 8) Japanese Patent Laid-Open No. 7-234020 (for example, FIG. 1) “New Solar Energy Handbook” Japan Solar Energy Society, October 30, 2001, first edition

  However, in the solar system described in Patent Document 1, in order to use water as a heat medium, there is a problem in that a conveyance power is required due to a pressure loss caused by piping between a heat collection panel installed on a roof of a general house and a hot water storage tank. was there.

  In addition, when the solar cell panel is used for the purpose of cooling in this configuration, heat is recovered from the solar cell panel because it takes a sensible heat transfer mode in which heat is transferred using a working fluid such as water or antifreeze. At the same time, the temperature of the working fluid rises. Therefore, the solar cell panel has a temperature distribution from the upstream side to the downstream side along the flow path of the working fluid. If solar panels with different temperatures are connected in parallel, the generated voltage will be close to that of a panel with a large maximum power and a small internal impedance, and only a power smaller than the maximum power can be extracted from a panel with a small maximum power. There was a problem of being lowered.

  In addition, when the configuration shown in FIG. 13 is used, the movement of the heat accompanying the movement of the steam is performed between the heat collecting unit 70 and the condenser 72, so there is an effect of reducing the conveyance power, The temperature collected by the heat collecting unit 70 is not sufficient for use in hot water supply or the like. In addition, in order to compensate for changes due to the climate, it is necessary to heat the hot water storage tank separately with an auxiliary heat source such as an electric heater. In any of these cases, it has been desired to reduce such energy.

  When the configuration shown in FIG. 13 is used, it is necessary to sufficiently control the pressure difference between the condenser 72 and the heat collecting unit 70 so that a stable heat collecting operation can be performed in a change in climatic conditions. .

  The present invention solves the above-described conventional problems, and provides a solar heat pump system and a method for operating the solar heat pump system that can efficiently collect solar heat with low transport power and use only the necessary amount of collected solar heat. The purpose is to do. Another object of the present invention is to provide a solar heat pump system and a method for operating the solar heat pump system that can uniformly cool the solar battery panel.

In order to solve the above-described problem, the first aspect of the present invention provides:
A heat collector that collects solar heat, a heat absorber that is thermally connected to the heat collector and adsorbs a volatile medium and distributes the vapor of the volatile medium therein, and a storage unit that condenses and stores the vapor , A heat-absorbing / dissipating cycle device having a volatile medium flow path connecting the heat-absorbing / dissipating radiator and the storage unit;
A solar heat pump system comprising a compressor, a heat radiator, an expansion valve, and a heat pump cycle device having an evaporator thermally connected to the storage unit.

The second aspect of the present invention
The heat collector is plate-shaped,
The heat absorber is arranged so that heat on the back surface of the heat collector is transferred to the adsorbed volatile medium,
The said heat absorption / radiation cycle apparatus is a solar heat pump system of 1st this invention which has further the solar cell panel thermally connected to the surface of the said heat collector.

The third aspect of the present invention provides
The volatile heat medium stored in the storage unit is vaporized by the pressure difference between the heat absorber and the storage unit and moves to the heat absorber, and is absorbed or condensed in the heat absorber. The solar heat pump system according to the first or second aspect of the present invention.

The fourth invention relates to
The solar heat pump according to any one of the first to third aspects of the present invention, wherein the storage unit is disposed at a position where the temperature is lower than that of the heat sink / heat radiator during solar radiation and higher than that of the heat sink / heat radiator during non-sunlight. System.

The fifth aspect of the present invention relates to
A first temperature measuring means for measuring the temperature of the heat sink / radiator or the temperature of the outside air;
Second temperature measuring means for measuring the temperature inside the storage unit;
A control valve provided in the volatile medium flow path for controlling the flow of the vapor in the volatile medium flow path;
The solar control valve according to any one of the first to fourth aspects of the present invention, wherein the control valve opens and closes based on a difference between the temperature of the heat absorber or the outside air and the temperature inside the storage unit, and controls the flow of the steam. It is a heat pump system.

The sixth invention relates to
The control valve opens when the temperature of the heat absorber / external air or the outside air is higher than the temperature inside the storage unit and the temperature difference is larger than a predetermined value, and the control valve opens in the volatile medium flow path. It is the solar heat pump system of 5th this invention which distribute | circulates the said vapor | steam.

The seventh invention relates to
Furthermore, it is the solar heat pump system according to any one of the first to fourth aspects of the present invention, further comprising pressure control means for adjusting a pressure difference between the inside of the heat sink / radiator and the inside of the storage unit.

The eighth invention relates to
The pressure control means is a solar heat pump system according to a seventh aspect of the present invention, which adjusts a pressure difference between the inside of the heat sink / radiator and the inside of the storage unit by controlling an operation power amount of the heat pump cycle.

The ninth invention relates to
A first temperature measuring means for measuring the temperature of the heat sink / radiator or the temperature of the outside air;
Second temperature measuring means for measuring the temperature inside the storage unit,
When the difference between the temperature of the heat sink or the outside air and the temperature inside the storage unit is smaller than a predetermined value, the pressure control means reduces the pressure in the flow path of the volatile heat medium to reduce the suction. It is a solar heat pump system according to the seventh or eighth aspect of the present invention, which increases the evaporation rate of the volatile heat medium in the radiator.

The tenth aspect of the present invention is
Furthermore, it comprises a power generation amount measuring means for measuring the power generation amount of the solar cell panel,
The pressure control means changes the pressure of the flow path of the volatile heat medium based on the power generation amount of the solar cell panel, and adjusts the evaporation rate of the volatile heat medium in the heat sink. The solar heat pump system according to any one of the ninth to ninth aspects of the present invention.

The eleventh aspect of the present invention is
Furthermore, a means for detecting the humidity of the outside air is provided,
The pressure control means adjusts the pressure of the flow path of the volatile heat medium based on any one of the temperature of the heat sink / radiator, the temperature of the outside air, the temperature inside the storage unit, and the humidity of the outside air. The solar heat pump system of the ninth or tenth aspect of the present invention to be adjusted.

The twelfth aspect of the present invention is
The heat pump cycle device is operated in reverse to dissipate heat from the evaporator, thereby heating the storage unit and increasing the pressure inside the storage unit higher than the inside of the heat sink / radiator. This is the solar heat pump system of the present invention.

The thirteenth aspect of the present invention is
The storage unit is the solar heat pump system according to any one of the first to twelfth aspects of the present invention, which is thermally connected to the radiator and is heated by heat radiated from the radiator.

The fourteenth aspect of the present invention is
Further, the first to thirteenth thermal storage units are provided that are thermally connected to both the radiator and the storage unit, store heat radiated from the radiator, and heat the storage unit by the heat. A solar heat pump system according to any one of the twelfth aspects of the present invention.

The fifteenth aspect of the present invention is
The heat pump cycle device further includes an indoor unit,
In the heat pump cycle device, the exhaust heat of the indoor unit during cooling operation is the solar heat pump system according to any one of the first to fourteenth aspects of the present invention, which is used for heating the storage unit.

The sixteenth aspect of the present invention
In the operation method of the solar heat pump system of the fifth aspect of the present invention,
When the temperature of the heat collector becomes equal to or higher than a predetermined temperature during solar radiation, the storage unit is vaporized through the volatile medium flow path by vaporizing the volatile heat medium adsorbed on the heat absorber. Opening the control valve to move to
When the temperature inside the heat sink / radiator becomes lower than the temperature inside the storage unit by a predetermined temperature difference or more during substantially non-sunlight, the volatile property is stored in the storage unit after being condensed. And a step of opening the control valve so that the heat medium is vaporized and moved to the heat sink / radiator through the volatile medium flow path.

The seventeenth aspect of the present invention provides
In the operation method of the solar heat pump system of the ninth aspect of the present invention,
When the difference between the temperature of the heat absorber or the outside air and the temperature inside the storage unit is smaller than a predetermined value, the volatile property is increased so as to increase the evaporation rate of the volatile heat medium in the heat absorber. It is the operating method of a solar heat pump system provided with the step which reduces the pressure of the flow path of a heat carrier.

The eighteenth aspect of the present invention is
A program for causing a computer to function as the pressure control means of the solar heat pump system according to any of the seventh to eleventh aspects of the present invention.

The nineteenth aspect of the present invention provides
A recording medium carrying the program of the eighteenth aspect of the present invention, which can be used by a computer.

  According to the present invention, it is possible to provide a solar heat pump system and an operation method thereof capable of efficiently collecting solar heat with low conveyance power and using only the necessary amount of collected solar heat. Moreover, this invention can provide the solar heat pump system which can also cool a solar cell panel uniformly, and its operating method.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
First, the configuration of the solar heat pump system according to the first embodiment of the present invention will be described with reference mainly to FIGS. However, detailed descriptions of known means that have been widely employed are omitted.

  FIG. 1 shows a configuration diagram of a solar heat pump system according to the first embodiment.

  In FIG. 1, on the back side of the heat collecting panel 1, there is provided a heat sink / radiator 2 in which a vaporizing portion 19 and a vapor passage 21 (see FIG. 2) of a volatile heat medium (using water here) are arranged. . The storage unit 5 for the volatile heat medium is connected to the heat sink / radiator 2 by the pipe 3. The pipe 3 is provided with a valve 4, which forms an absorption / heat radiation cycle device. A temperature sensor 25 is provided on the solar radiation surface side around the heat collection panel 1. Further, the vaporization unit 19 is provided with a temperature sensor 27, and the storage unit 5 is provided with a temperature sensor 28. Moreover, S of FIG. 1 represents the solar radiation.

  The heat collection panel 1, the pipe 3, and the valve 4 are examples of the heat collector, the volatile medium flow path, and the control valve of the present invention, respectively. Further, the temperature sensor 27 and the temperature sensor 28 are examples of the first temperature measuring unit and the second temperature measuring unit of the present invention, respectively.

  Moreover, the evaporator 6, the compressor 7, the heat radiating part 8, and the expansion valve 9 are connected by a refrigerant flow path 10 to form a heat pump cycle device. Here, the evaporator 6 is disposed so as to exchange heat with the inside of the storage unit 5. And the control apparatus 30 changes the motive power of the compressor 7, and adjusts the circulation flow volume of the refrigerant | coolant in this heat pump cycle. In addition, the thermal radiation part 8 and the control apparatus 30 are examples of a heat radiator and a pressure control means of this invention, respectively.

  Moreover, the heat storage part 11 for storing the heat radiated from the heat radiating part 8 is provided. As shown in FIG. 1, when the heat storage unit 11 is used as a hot water storage tank, heat is exchanged with the heat radiating unit 8 from the water supply port 13 through the hot water forming flow path 12, and hot water is stored in the heat storage unit 11. Hot water stored in the heat storage unit 11 is discharged from the hot water supply port 14 and used for hot water supply or heating. Two temperature sensors 42 and 43 are provided at different predetermined positions inside the heat storage unit 11.

  And the heat exchanger 47 is thermally connected and provided with the storage part 5 so that the inside of the storage part 5 may be heated. A three-way valve 49 is provided on the water supply side pipe of the heat storage unit 11, and a three-way valve 48 is provided on the warm water discharge side. These three-way valves 48 and 49 are connected to a heat exchanger 47 by a bypass 46 so that hot water in the heat storage unit 11 is supplied to the heat exchanger 47.

  Here, the solid line arrow shown in the heat pump cycle portion of FIG. 1 represents the flow of the refrigerant. The compressor 7 is operated using commercial power as a power source. Here, carbon dioxide is used as the refrigerant.

  FIG. 2 shows the configuration of the heat absorber / radiator 2 integrated with the heat collecting panel 1.

  A heat transfer plate 18 is provided in close contact with the back side of the heat collection panel 1 in substantially parallel to the heat collection panel 1, and an adsorbent 33 (see FIG. 4, here using special activated carbon) is fixed to the heat transfer plate 18. A vaporizing unit 19 is provided. The heat transfer plate 18 used here may be the same as the heat collection panel 1. In addition, the adsorbent 33 is provided with a powder primary molding in close contact with the heat transfer plate 18, but may be reinforced with a metal mesh or the like. And the heat insulation board 20 is provided so that a space may be provided between the vaporization parts 19, and the space forms the steam flow path 21. FIG.

  3 shows an a-a ′ cross-sectional view of the heat sink / radiator 2 shown in FIG. 2 in the flow path direction, and FIG. 4 shows a b-b ′ cross-sectional view of FIG. 3.

  As shown in FIGS. 3 and 4, the side surface of the heat sink / radiator 2 is surrounded by an outer frame 17. As shown in FIG. 2, the upper end portion and the lower end portion are sealed with a seal portion 39.

  As shown in FIG. 3, fins 22 are formed on the heat transfer plate 18, and the fins 22 are provided substantially in parallel to determine the steam flow path direction, and the roof on which the heat sink / heat radiator 2 is installed. It is designed to be parallel to the inclination. The steam flow path 21 is simply divided by a plurality of fins 22, and is connected to the pipe 3 at a throttle portion outlet 26 formed in the throttle portion 23. Here, the fins 22 may reach the heat insulating plate 20 below, and the plate-like fins are used in the first embodiment. However, the fins 22 may be rectangular or mountain-shaped, and are not limited to this shape.

  Further, as shown in FIG. 2, the lower end of the absorber 2 is inclined at the lower part in the tilt direction so that a condensed volatile medium liquid reservoir 24 is provided, and the liquid reservoir 24 has an adsorbent 33. It is designed to be immersed.

  Next, the operation of the solar heat pump system in the first embodiment will be described.

(1) Operation at the time of solar radiation An operation at the time of solar radiation of the solar heat pump system according to the first embodiment will be described with reference to FIGS.

  When the temperature sensor 25 detects that the temperature around the heat collecting panel 1 has reached a set value (here, 20 to 30 ° C.) or more, the control device 30 opens the valve 4, and the heat sink / radiator 2 and the storage unit 5. Are substantially linked. As the temperature of the heat collecting panel 1 rises, heat is transferred to the vaporization section 19 by the heat transfer plate 18, and the volatile heat medium adsorbed and held by the adsorbent 33 provided in the vaporization section 19 starts to evaporate. Heat can be collected from the heat collection panel 1 by removing the latent heat of evaporation from the heat collection panel 1. Here, the set value of the temperature around the heat collecting panel 1 used for the determination for opening the valve 4 is the temperature difference between the temperature of the heat absorber / outside air and the temperature inside the storage unit of the present invention. It is an example of a predetermined value.

  Further, when the pressure of the steam channel 21 is constant, evaporation occurs at a substantially constant temperature, so that the surface direction of the heat collecting panel 1 can be cooled at the same temperature according to the temperature distribution of each part. The vaporized volatile heat medium moves upward along the flow path direction formed by the fins 22 due to the pressure difference between the vaporization unit 19 and the storage unit 5, and passes through the throttle unit outlet 26 from the throttle unit 23. It flows through the pipe 3 and reaches the storage unit 5.

  On the other hand, the heat pump cycle operates the compressor 7 and the like to circulate the refrigerant in the refrigerant flow path 10. Since the circulating refrigerant is in a low temperature and low pressure state by the expansion valve 9, the evaporator 6 takes heat away from the inside of the storage unit 5. Accordingly, since the inside of the storage unit 5 is cooled and the pressure is reduced, the volatile heat medium moves from the heat sink / radiator 2 to the storage unit 5 using a pressure difference from the inside of the heat sink / radiator 2 and partially evaporates. It is condensed and stored while applying heat to the vessel 6.

  Here, since the pressure difference between the heat sink / radiator 2 and the storage unit 5 varies depending on the state of solar radiation, the temperature, etc., the transport speed of the volatile heat medium is affected.

  Therefore, in the solar heat pump system of the first embodiment, the control device 30 detects the temperature inside the heat sink / radiator 2 with the temperature sensor 27 and the temperature inside the storage unit 5 with the temperature sensor 28, respectively. During this operation, the circulatory flow rate of the refrigerant in the heat pump cycle is adjusted by changing the power of the compressor 7 so that the inside of the storage unit 5 is always lower in temperature than the inside of the heat sink / radiator 2. Therefore, when it is determined that the temperature difference between the temperature of the heat sink / radiator 2 and the temperature inside the storage unit 5 has become a predetermined value or less, the control device 30 reduces the temperature inside the storage unit 5 so as to decrease the temperature inside the heat pump cycle. Control to drive.

  In this way, by adjusting the cooling rate in the storage unit 5 by the evaporator 6, the pressure difference between the inside of the heat sink / radiator 2 and the inside of the storage unit 5 is adjusted, and the heat collecting action of the heat collecting panel 1 is adjusted. It is possible to perform stably. At this time, by controlling the temperature of the refrigerant flowing through the evaporator 6 to be equal to or lower than the supercritical temperature (about 31 ° C. in the case of carbon dioxide) inherent to the refrigerant, high heat exchange characteristics can be ensured. .

  Then, when the temperature detected by the temperature sensor 27 of the vaporization unit 19 and the temperature sensor 28 of the storage unit 5 become the same, the control device 30 determines that the equilibrium has occurred and controls the valve 4 to close.

  As a means for detecting the pressure difference between the heat sink / radiator 2 and the storage unit 5 in the above, in the first embodiment, the temperature sensor 27 is used to determine the temperature environment in which the vaporization unit 19 is placed. ing. In this way, the pressure difference can be determined with higher accuracy, but the intensity of solar radiation is reflected even if the temperature sensor 27 is shared by the temperature sensor 25 or a means for measuring the outside air temperature is used separately. Therefore, it is possible to judge indirectly.

  When the temperature difference between the heat sink / radiator 2 and the storage unit 5 is small, or when it is estimated to be small due to the outside air temperature or the like, the control device 30 increases the operating power amount of the heat pump cycle to increase the evaporator 6. The cooling rate in the storage unit 5 is increased, and the temperature in the storage unit 5 is decreased. In this way, it is possible to control to increase the transport speed of the volatile heat medium.

  On the other hand, when the temperature difference between the heat sink / radiator 2 and the storage unit 5 is large, the volatile heat medium is sufficiently transported by the pressure difference, so the control device 30 reduces the operating power amount of the heat pump cycle. The cooling rate by the evaporator 6 can be reduced.

  At this time, the heat radiating section 8 of the heat pump cycle radiates the high-temperature refrigerant (carbon dioxide) as in the so-called heat pump type hot water heater, and heats the water flowing through the hot water forming flow path 12 to form hot water. The formed hot water is stored in the heat storage unit 11 and can be used for hot water supply or heating.

  With the above configuration, the heat collecting panel 1 can collect heat with reduced power while reducing the influence of the temperature level and temperature distribution. At the same time, the heat source temperature in the evaporator 6 of the heat pump cycle can be set relatively high by utilizing the heat collected from the heat collecting panel 1, so that the performance efficiency COP of the heat pump cycle can be improved.

  In addition, the control device 30 is configured to calculate the heat storage amount from the temperature information of the two temperature sensors 42 and 43 inside the heat storage unit 11. When it is determined that the amount of heat of the heat storage unit 11 is sufficient for the demand based on the calculated amount of stored heat, the control device 30 ends the operation of the heat pump. Note that this heat storage amount does not have to be based on this method.

  It is not necessary for the heat storage unit 11 to increase the amount of stored heat more than the required amount, that is, the amount that has seen a certain degree of margin with respect to demand. In the first embodiment, the control device 30 of the heat pump cycle calculates the heat demand based on the temperature information of the temperature sensors 42 and 43 of the heat storage unit 11 and estimates the necessary heat storage amount from the daily calculation results. A learning function is provided, and the amount of heat pumped from the storage unit 5 is determined based on the learning function.

  After the heat pump is stopped, the movement of the volatile heat medium from the heat sink / radiator 2 to the storage unit 5 further proceeds until the inside of the storage unit 5 is in equilibrium with the heat sink / heat sink 2 to increase the temperature of the storage unit 5, The reverse operation, that is, the movement of the volatile heat medium from the storage unit 5 to the heat sink / radiator 2 during non-sunlight can be smoothly performed by the pressure difference. In order to increase the temperature of the storage unit 5, the heat pump may be stopped while gradually decreasing the refrigerant circulation amount and decreasing the pumping heat amount.

(2) Operation during non-sunlight The operation during non-sunlight of the solar heat pump system according to Embodiment 1 will be described with reference to FIGS.

  As described above, since the volatile heat medium is moved to the storage unit 5 during solar radiation, the storage unit 5 is changed from the storage unit 5 to the vaporization unit 19 during substantial non-sunlight for the next solar radiation operation. It is necessary to move the volatile heat medium.

  Therefore, during non-sunlight, the control device 30 determines that the temperature of the vaporization unit 19 detected by the temperature sensor 27 is sufficiently lower than the temperature in the storage unit 5 detected by the temperature sensor 28 due to radiation cooling or the like. When the determination is made, the valve 4 is controlled to open again. That is, the volatile heat medium can be transported in a gas phase state due to a pressure difference caused by a difference in temperature between the storage unit 5 and the vaporization unit 19.

  In this way, the condensed volatile heat medium moves from the storage unit 5 to the adsorbent 33 provided in the vaporization unit 19 via the pipe 3. Further, the volatile heat medium that cannot be adsorbed by the adsorbent 33 is transported to the liquid reservoir 24. The condensation latent heat of the volatile heat medium is released by the adsorption of the volatile heat medium in the vaporization unit 19 and the condensation in the liquid reservoir 24, and the heat collection panel 1 cooled by the outside air is used as a heat radiating plate to radiate heat.

  By operating as described above, the volatile heat medium can be returned to the vaporization unit 19 for the operation during the next solar radiation with little power required.

  Here, for example, when the temperature is low due to weather conditions, when there is little solar radiation, or when there is a significant heat demand, the temperature inside the storage unit 5 transports the volatile heat medium to the heat sink / radiator 2. Sometimes it is not enough to do. In such a case, it is necessary to ensure a sufficient pressure difference between the inside of the storage unit 5 and the heat sink / radiator 2 to transport the volatile heat medium.

  Therefore, the solar heat pump system according to the first embodiment is provided with a pressure adjusting means. As the pressure adjusting means, the heat storage unit 11 is used, and the inside of the storage unit 5 is heated via the bypass 46. That is, the inside of the storage unit 5 is heated by the heat exchanger 47 with hot water from the heat storage unit 11, thereby increasing the pressure inside the storage unit 5. On the other hand, since the heat sink / radiator 2 is radiatively cooled through the heat collecting panel 1, its internal pressure is lowered. The volatile heat medium is transported using the pressure difference between the storage unit 5 and the heat sink / radiator 2 realized in this way. It is desirable that this operation be performed particularly during the time when the heat collecting panel 1 is cooled.

  Further, as a method of heating the storage unit 5, instead of using the heat of the heat storage unit 11, the heat pump cycle is reversed by switching a four-way valve (not shown), and the evaporator 6 is used as a condenser. May be heated. Or you may provide the path | route which heats the storage part 5 similarly to the case where a bypass is separately formed from the thermal radiation part 8 and the heat storage part 11 is utilized. Even when such an operation is performed, since it is possible to use an inexpensive late-night fee system set by the electric power company during the midnight time period, the economic burden on the user can be reduced.

  Further, as a means for adjusting the pressure by means other than using the temperature difference, it is possible to simply adopt another method such as providing a compressor. However, the method using the above temperature difference is preferable. It is economical because the thermal driving force due to the pressure difference can be used.

  The volatile heat medium used in the configuration of the first embodiment can be, for example, water or lower alcohol, and can be evaporated or desorbed from the adsorbent within the operating temperature range. Anything can be used. The operating temperature range is preferably, for example, that evaporation can be performed in the range of 10 to 30 ° C., and can be adjusted by reducing the pressure. Also, the adsorbent to be used may be selected so that the volatile heat medium satisfies the above conditions. For example, activated carbon, graphite, adsorptive polymer, silica, inorganic salts and the like can be used. Moreover, as a material used for the vaporization part 19, it is not limited to said adsorption agent, For example, what is called a wick used for heat pipe techniques, such as a mesh form and a sintered metal, may be sufficient.

  Further, the positional relationship between the fins 22 and the adsorbent 33 is not limited to the shape in which the adsorbent 33 is filled between the fins 22 as shown in FIG. May be used.

  In addition, the heat pump cycle used in the first embodiment is not limited to the configuration shown in FIG. 1, and the temperature range that causes the storage unit 5 and the evaporator 6 to function while generating heat is matched. If the heat pump cycle is used, the same effect as described above can be obtained.

  In addition, the heat transfer plate 18 used in the configuration of the first embodiment is effective as long as it has at least a heat conductivity material than the adsorbent 33, and it is particularly preferable to use carbon, Al, Cu or the like.

  Further, each temperature sensor used in the configuration of the first embodiment has a temperature sensor 25 that indicates the temperature of the heat collecting panel 1, a temperature sensor 27 that indicates the temperature of the heat sink / radiator 2, and a temperature sensor 28 that is not cooled. However, what is necessary is just to be able to judge the temperature in the storage part 5 each directly or indirectly, and it does not limit an installation place with drawing.

  In addition, it is essential that the storage unit 5 is installed at a portion where the temperature inside the storage unit 5 is relatively low during solar radiation and relatively high during non-sunlight with respect to the temperature of the heat sink 2. In addition, it is possible to create an environment in which the volatile heat medium moves to the storage unit 5 side during solar radiation and to the heat sink / radiator 2 side during non-sunlight such as midnight, thereby further reducing the driving power related to heat transport. it can.

  The power for driving the heat pump cycle uses general commercial power in the first embodiment, but power stored by a separately provided power storage unit may be used.

(Embodiment 2)
Next, the configuration of the solar heat pump system according to the second embodiment of the present invention will be described with reference mainly to FIGS. However, detailed descriptions of well-known means that have been widely used in the past and portions that have the same configuration and perform the same operations in the first embodiment are omitted. 5 and 6, the same reference numerals are used for the same components as those in FIGS. 1 and 2.

  FIG. 5 shows a configuration diagram of the solar heat pump system in the second embodiment.

  In FIG. 5, on the back side of the solar cell panel 44, there is provided a heat sink / radiator 2 in which a vaporizing portion 19 and a vapor channel 21 (see FIG. 6) of a volatile heat medium (using water here) are arranged. . The storage unit 5 for the volatile heat medium is connected to the heat sink / radiator 2 by the pipe 3. The pipe 3 is provided with a valve 4. In addition, a power measuring unit 29 that measures the amount of power generated by the solar cell panel 44 is connected to the solar cell panel 44. In addition, a humidity sensor 45 that detects the humidity of the outside air is provided on the outer frame 17 of the absorber 2. The humidity sensor 45 is integrated with the temperature sensor 25. The power measuring unit 29 and the humidity sensor 45 are examples of the power generation amount measuring unit and the humidity detecting unit of the present invention, respectively.

  In addition, the heat pump cycle has the same configuration as that of the first embodiment shown in FIG. 1, but when the power source for operation of the compressor 7 has solar radiation, at least the power generated by the solar cell panel 44 is generated. When there is no solar radiation, commercial power is used. Here, carbon dioxide is used as the refrigerant.

  FIG. 6 shows the configuration of the heat sink / radiator 2 integrated with the solar cell panel 44. The solar battery panel 44 has a general configuration including a cover glass 15, solar battery cells 16 (here, crystalline silicon is used), a substrate, electrodes, and the like. A heat transfer plate 18 is provided in close contact with the solar cell panel 44 on the back side of the substrate of the solar battery cell 16, and an adsorbent (here, using special activated carbon) is fixed to the heat transfer plate 18. A part 19 is provided. A temperature sensor 25 is provided on the solar radiation surface side around the solar cell panel 44. In addition, since the structure of the other heat absorber 2 is the structure which replaced the thermal collection panel 1 in the structure of FIG. 3 and FIG. 4 with the solar cell panel 44, description is abbreviate | omitted.

  Next, the operation of the solar heat pump system in the second embodiment will be described.

(1) Operation at the time of solar radiation An operation at the time of solar radiation of the solar heat pump system according to the second embodiment will be described based on FIG. 5, FIG. 6, and FIG. 6 is a configuration similar to that of the first embodiment, as shown in FIG. 3.

  When the temperature sensor 25 detects that the temperature around the solar battery panel 44 has become equal to or higher than a set value (here, 20 to 30 ° C.), the control device 30 opens the valve 4, and the heat sink / radiator 2 and the storage unit 5. Are substantially linked. As the temperature of the solar cell panel 44 rises, heat is transmitted to the vaporization unit 19 by the heat transfer plate 18, and the volatile heat medium adsorbed and held by the adsorbent provided in the vaporization unit 19 starts to evaporate. The solar cell panel 44 is cooled by removing latent heat from the solar cell panel 44.

  Further, when the pressure of the vapor channel 21 is constant, evaporation occurs at a substantially constant temperature, so that the surface direction of the solar cell panel 44 can be cooled at the same temperature according to the temperature distribution of each part. The vaporized volatile heat medium moves upward along the flow path direction formed by the fins 22, flows from the throttle portion 23 via the throttle portion outlet 26, flows through the pipe 3, and reaches the storage portion 5.

  On the other hand, the heat pump cycle operates the compressor 7 and the like while mainly using the electric power generated in the solar cell panel 44 to circulate the refrigerant in the refrigerant flow path 10. Since the circulating refrigerant is in a low temperature and low pressure state by the expansion valve 9, the evaporator 6 takes heat away from the inside of the storage unit 5. Accordingly, since the inside of the storage unit 5 is cooled and the pressure is reduced, the volatile heat medium moves from the heat sink / radiator 2 to the storage unit 5 and is partially condensed and stored while giving heat to the evaporator 6. The

  At this time, the heat radiating section 8 of the heat pump cycle radiates the high-temperature refrigerant (carbon dioxide) as in the first embodiment, and heats the water flowing through the hot water forming flow path 12 to form hot water. The formed hot water can be stored in the heat storage unit 11 and used for hot water supply or heating.

  With the above configuration, the solar cell panel 44 is uniformly cooled, so that it is possible to improve the power generation efficiency as compared with simply cooling with a sensible heat medium such as water. At the same time, the heat source temperature in the evaporator 6 of the heat pump cycle can be set relatively high by using the cooling heat of the solar cell panel 44, so that the performance efficiency COP of the heat pump cycle can be improved.

  Here, in this Embodiment 2, the electric power measurement part 29 is used as an electric power generation amount calculation means of the solar cell panel 44, and the electric power generation amount of the solar cell panel 44 which is closely related to the solar radiation amount is calculated. Then, the control device 30 always keeps the inside of the storage unit 5 at a lower temperature than the inside of the heat sink / radiator 2 during operation during solar radiation according to the intensity of solar radiation obtained from the amount of generated power calculated by the power measuring unit 29. Thus, the compressor 7 is controlled to adjust the circulation flow rate of the refrigerant in the heat pump cycle. In this manner, the pressure in the storage unit 5 is adjusted, and the cooling operation of the solar cell panel 44 can be stably performed.

  Moreover, it is preferable that the heat absorption with respect to the solar cell panel 44 is absorbed as low as possible without causing condensation so as to ensure the insulation inside the solar cell panel 44 while improving the power generation efficiency.

  Therefore, in the solar heat pump system of the second embodiment, a humidity sensor 45 that detects the humidity of the outside air is provided in the outer frame 17 of the heat sink / radiator 2 as a means for preventing dew condensation in the solar panel 44. Then, the control device 30 calculates the dew point of the outside air based on the information of the humidity sensor 45, and controls the operating power amount of the heat pump cycle so that the temperature of the temperature sensor 27 provided in the vaporization unit 19 does not become lower than the dew point. It has become.

  By doing in this way, while ensuring the insulation of the solar cell panel 44, it becomes possible to reduce the temperature of the solar cell panel 44 as much as possible to increase the power generation amount, and to increase the heat collection amount. . In the second embodiment, the humidity state is detected by the humidity sensor 45. However, a numerical value predicted from weather information such as a weather forecast may be acquired and used by the information network. Absent.

  In addition, when the control device 30 determines from the amount of power generated by the solar cell panel 44 measured by the power measuring unit 29 that the solar power generation is not expected to occur when the solar power generation is not expected, the control device 30 closes the valve 4 and flows the steam. Control to shut off the path and stop the heat pump cycle.

  Here, in the control apparatus 30, the judgment at the time of non-sunlight is judged based on the sunset time table formed every day. Furthermore, compared with the estimated maximum output obtained from the daily generated power prediction table created separately, the generated power of the solar cell panel 44 is less than a predetermined power value (here, set to 5% or less) and from one hour ago. When a tendency to decrease is detected, a stop determination is made.

  In the above description, the heat pump cycle is stopped after the determination at the time of non-sunlight, but the present invention is not limited to this. For example, if it is determined by the above means, the temperature sensor 25, or the like that the solar radiation has decreased, it is possible to perform control to stop the heat pump cycle first while the valve 4 remains open.

  After the heat pump is stopped, the movement of the volatile heat medium from the heat sink / radiator 2 to the storage unit 5 further proceeds until the inside of the storage unit 5 is in equilibrium with the heat sink / heat sink 2 to increase the temperature of the storage unit 5, The movement of the volatile heat medium from the storage unit 5 to the heat sink / radiator 2 during non-sunlight can be performed more smoothly. Moreover, in order to raise the temperature of the storage part 5, you may stop a heat pump, reducing a refrigerant | coolant circulation amount in steps and reducing a pumping heat amount.

  If the amount of power generated by the solar panel 44 exceeds the amount of power for the heat pump power, the power generated by the solar panel 44 may be used by other electrical devices, and the surplus is sold by the system. Electricity is purchased, and when it falls below, electricity is purchased.

(2) Operation during non-sunlight The operation during non-sunlight of the solar heat pump system according to the second embodiment will be described with reference to FIGS.

  As described above, since the volatile heat medium is moved to the storage unit 5 during solar radiation, the storage unit during non-sunlight where solar power generation cannot be substantially expected due to the operation during the next solar radiation. It is necessary to move the volatile heat medium from 5 to the vaporization unit 19. At the same time, since an excessive amount of heat is stored in the storage unit 5, it is necessary to dissipate the heat.

  Therefore, at the time of non-sunlight, the controller 30 causes the temperature of the vaporization unit 19 detected by the temperature sensor 27 to be sufficiently lower than the temperature in the storage unit 5 detected by the temperature sensor 28 as in the first embodiment. When it is determined that it has become, control is performed so that the valve 4 is opened again. That is, the volatile heat medium can be transported in a gas phase state due to a pressure difference caused by a difference in temperature between the storage unit 5 and the vaporization unit 19.

  In this manner, the condensed volatile heat medium moves from the storage unit 5 to the adsorbent provided in the vaporization unit 19 via the pipe 3. The volatile heat medium that cannot be adsorbed by the adsorbent is transported to the liquid reservoir 24. The condensation latent heat of the volatile heat medium is released by the adsorption of the volatile heat medium in the vaporization unit 19 and the condensation in the liquid reservoir 24, and the solar cell panel 44 cooled by the outside air is used as a heat radiating plate to radiate heat.

  By operating as described above, the volatile heat medium can be returned to the vaporization unit 19 for the operation during the next solar radiation with almost no power required, and excess heat in the storage unit 5 can be transferred to the outside. It becomes possible to dissipate heat and a volatile heat medium can be used for cooling the solar cell panel 44 the next day.

  When the amount of heat stored in the storage unit 5 is small compared to transporting the volatile heat medium, the flow direction of the refrigerant is reversed by a four-way valve (not shown), and the heat of the heat storage unit 11 is It is possible to heat the storage part 5 by making it the structure which can be transported via the thermal radiation part 8. FIG. At this time, heat transfer from the heat storage unit 11 to the heat radiating unit 8 can be performed by means such as reversing the circulation channel of the hot water forming channel 12. Further, similarly to the first embodiment, the storage unit 5 may be heated by the heat of the heat storage unit 11.

(Embodiment 3)
Next, the configuration and operation of the solar heat pump system according to Embodiment 3 of the present invention will be described with reference mainly to FIGS. However, detailed descriptions of well-known means that have been widely employed in the past and portions that have the same configuration as those of the first and second embodiments and perform the same operation are omitted. Moreover, in FIGS. 7-9, the same code | symbol is used about the same component as FIG.

  FIG. 7 shows a configuration diagram of the solar heat pump system according to the third embodiment.

  The solar heat pump system according to the third embodiment is different from the second embodiment in that the refrigerant flow path 10 in the heat pump cycle is branched by the bypass 53, the bypass 60, the bypass 51, and the bypass 58, and the expansion valve 52 and the indoor The difference is that the machine 50 is provided. Further, valves 55, 56, 59, 64 and three-way valves 54, 57 are provided, and the flow path of the refrigerant is controlled by opening / closing control of these valves. Each valve is controlled by the control device 30, but in FIG. 7, description of the connection between the control device 30 and each valve is omitted.

  That is, the operation of the compressor 7 operates the evaporator 6 and forms a flow path for cooling and heating the room using the indoor unit 50. When the indoor unit 50 is used to cool the room, The exhaust heat is used for adjusting the temperature and pressure in the storage unit 5. Moreover, the bypass 46 provided in the thermal storage part 11 is provided similarly to Embodiment 1, and operate | moves similarly.

  Next, the operation of the solar heat pump system according to the third embodiment will be described with reference to FIGS. 8 and 9.

  FIG. 8 shows the state of each valve under each condition during solar radiation, and FIG. 9 shows the state of each valve under each condition during non-sunlight. In FIGS. 8 and 9, black ▲ in the valves 55, 56, 59, 64 and the three-way valves 54, 57 indicates that the flow path connected to the valve or the three-way valve is closed. An open triangle indicates that the flow path connected to the valve or the three-way valve is open. Moreover, the solid line arrow shown in FIG. 8, FIG. 9 has shown the distribution | circulation direction of the refrigerant | coolant in each condition.

(Operation during solar radiation)
The basic operation of the heat pump cycle including the heat radiating unit 8, the expansion valve 9, the evaporator 6, and the compressor 7 is that the evaporator 55 is the same as in the second embodiment because the valve 55 and the valve 64 are opened. Heat is pumped up from the storage unit 5 and the temperature and pressure in the storage unit 5 are adjusted.

  When performing cooling during the summer season, the valve and the three-way valve are controlled as shown in FIG. The valve 59 is opened, the three-way valve 57 is closed in the direction of the bypass 58, and the refrigerant from the expansion valve 52 flows in the direction of the bypass 51 and is controlled to pass through the indoor unit 50 located in the bypass 51. The three-way valve 54 and the valve 56 are controlled so that the refrigerant takes heat from the room to be cooled by the indoor unit 50 and reaches the compressor 7 and the heat radiating unit 8 via the bypass 53. The amount of heat pumped up from the room can be stored in the heat storage unit 11 through the heat radiating unit 8 together with the heat inside the storage unit 5 pumped up separately by the evaporator 6 without being released to the atmosphere.

  Here, the opening degree of the valve 59, the operating power amount of the compressor 7 and the like are adjusted with respect to the cooling load in the room in consideration of the refrigerant flow rate on the evaporator 6 side.

  And in this Embodiment 3, when the air conditioning using the indoor unit 50 is not required, the valve 59 is closed and the three-way valve 54 is bypass 51 and bypass 53 like the flow path shown in FIG. By closing the communication, the refrigerant is controlled so as not to flow into the bypass 51.

  In the winter season when heating is required, the indoor unit is adjusted by closing the valve 59, opening the valve 56, and adjusting the three-way valve 57 and the three-way valve 54 as in the flow path shown in FIG. 50 and the heat radiation part 8 are controlled to be in parallel. In this way, the amount of heat pumped up by the evaporator 6 is used for heating in the indoor unit 50 and for storage in the heat storage unit 11 in the heat radiating unit 8.

(Operation during non-sunlight)
Similar to the first or second embodiment, after determining the substantial non-sunlight time, it is necessary to transport the volatile heat medium from the storage unit 5 to the heat sink / radiator 2.

  In the solar heat pump system of the third embodiment, in addition to the amount of heat recovered from the solar cell panel 44, the heat storage unit 11 also stores the amount of cooling exhaust heat that is unnecessary and is normally released to the atmosphere. The amount of heat stored in the heat storage unit 11 can be sufficiently supplied to the storage unit 5 via the bypass 46 as in the first embodiment. For this reason, in the third embodiment, even when the temperature of the heat sink / radiator 2 is relatively high in summer or the like, the storage unit 5 is transported of the volatile heat medium mainly by utilizing the cooling exhaust heat peculiar to summer. It can be heated to a level that is sufficiently possible.

  Then, the control device 30 determines that the temperature of the volatile heat medium in the storage unit 5 detected by the temperature sensor 28 is sufficiently higher than the temperature of the heat sink / radiator 2 detected by the temperature sensor 27. The valve 4 can be controlled to be opened, and the volatile heat medium can be transported.

  Further, in the case of cooling at night, as shown in FIG. 9A, the valve 64 is closed and a heat pump cycle that does not pass through the evaporator 6 is set. By controlling in this way, the heat of the indoor unit 50 can be stored in the heat storage unit 11 and further used for heating the storage unit 5 by the bypass 46.

  Moreover, when it is not necessary to supply heat quantity to the heat storage part 11, a heat pump cycle is reversely operated and a refrigerant | coolant flow path is made into the flow path shown in FIG.9 (b). In this case, the evaporator 6 functions as a radiator, and the heat pumped up by the indoor unit 50 is radiated by the evaporator 6 and used in the storage unit 5. Thus, the heat pumped up by the indoor unit 50 is used as the amount of heat for transporting the volatile heat medium.

  Further, in FIG. 7, when air conditioning using the indoor unit 50 is not required, the valve 59 is closed, and the three-way valve 54 closes the communication between the bypass 51 and the bypass 53, resulting in the flow path shown in FIG. Thus, the refrigerant does not flow into the bypass 51.

  Further, when heating is required, the valve 55 and the valve 59 are closed and the indoor unit 50, the expansion valve 9, A heat pump cycle from the evaporator 6 to the compressor 7 is formed. With this heat pump cycle, the heat absorbed by the evaporator 6 from the storage unit 5 is used as heating in the indoor unit 50. That is, heating can be performed using the heat of the storage unit 5 heated by the heat storage unit 11.

  With the above configuration, in the summertime when the outside air temperature is particularly high, in addition to the solar heat pump system having the basic configuration described in the second embodiment shown in FIG. It becomes possible to supply the amount of exhausted heat to the storage unit 5. Therefore, the pressure of the storage unit 5 can be made higher than that of the heat sink / radiator 2, and the volatile heat medium can be transported more economically.

  It should be noted that the operation control of other parts in the third embodiment can be performed in the same manner as the method described in the first and second embodiments.

(Embodiment 4)
Next, the configuration of the solar heat pump system according to Embodiment 4 of the present invention will be described with reference mainly to FIGS. However, detailed descriptions of well-known means that have been widely employed in the past and portions that have the same configuration as those of the embodiments and perform the same operations are omitted. Moreover, in FIGS. 10-12, the same code | symbol is used about the same component as FIG. 5 and FIG.

  FIG. 10 shows a configuration diagram of a solar heat pump system according to the fourth embodiment.

  The solar heat pump system of the present fourth embodiment is the same as the third embodiment in that the heat pump cycle in the second embodiment shown in FIG. 5 is branched and the indoor unit 50 is provided via the bypass 51. However, there is a difference in that a bypass 62 and the like are provided so that a heat pump cycle can be formed to the evaporator 6 so as to supply indoor cooling exhaust heat by using the indoor unit 50. Further, the third embodiment is different from the third embodiment in that the valves 59 and 64 of the third embodiment shown in FIG. 7 are not provided and the valve 63 is provided on the path of the bypass 58. Further, an expansion valve 65 is provided at a position different from the expansion valve 52 of the third embodiment. Each valve is controlled by the control device 30, but in FIG. 10, the description of the connection between the control device 30 and each valve is omitted.

  Next, the operation of the solar heat pump system according to the fourth embodiment will be described with reference to FIGS. 11 and 12.

  FIG. 11 shows the state of each valve in each condition during solar radiation, and FIG. 12 shows the state of each valve in each condition during non-sunlight. In FIG. 11 and FIG. 12, black ▲ in the valves 55, 56, 63 and the three-way valves 54, 57, 61 indicates that the flow path connected to the valve or the three-way valve is closed. An open triangle indicates that the flow path connected to the valve or the three-way valve is open. Moreover, the solid line arrow shown in FIG. 11, FIG. 12 has shown the distribution direction of the refrigerant | coolant in each condition.

(Operation during solar radiation)
The basic operation of the heat pump cycle composed of the heat radiating unit 8, the expansion valve 9, the evaporator 6 and the compressor 7 is that the valve 55 is opened, so that the evaporator 6 is stored in the storage unit 5 as in the second embodiment. Heat is pumped from the inside, and the temperature and pressure in the storage unit 5 are adjusted.

  The operation during solar radiation when cooling is performed during the summer season, etc., each valve is controlled so that the flow path shown in FIG. 11 (a) is obtained, and mainly the heat radiating section 8, the expansion valve 52, the indoor unit 50, the compression A flow path through the machine 7 is provided. Then, the indoor unit 50 located in the bypass 51 takes heat from the room to be cooled, as in the third embodiment, and the amount of heat is combined with the solar heat pumped up separately by the evaporator 6, and the heat radiating unit 8 is removed. It is stored in the heat storage unit 11 via.

  Here, the opening degree of the three-way valve 57 and the operating power amount of the compressor 7 are adjusted with respect to the cooling load in the room while taking into consideration the refrigerant flow rate on the evaporator 6 side.

  In the fourth embodiment, when air conditioning using the indoor unit 50 is not required, each valve and each three-way valve are configured as shown in FIG. The state is changed so that the refrigerant does not flow through the bypass 51.

  In addition, when heating is required, each valve is controlled so that the flow path shown in FIG. 11C is obtained, and the heat pumped up by the evaporator 6 is radiated while adjusting the flow rate of the refrigerant flow path 10. Heat is generated by forming a heat pump cycle so that heat is radiated by the unit 8 and the indoor unit 50, or heat is pumped up by the evaporator 6 by controlling each valve so that the flow path shown in FIG. Can be radiated only by the indoor unit 50 without using the heat radiating unit 8 and used for heating.

(Operation during non-sunlight)
Similar to the first or second embodiment, after the control device 30 determines that the non-sunlight is substantial, it is necessary to transport the volatile heat medium from the storage unit 5 to the heat absorber / radiator 2.

  In the solar heat pump system of the fourth embodiment, each valve is controlled so as to have a flow path as shown in FIG. 12A, and the compressor 7, the evaporator 6, the bypass 51, the indoor unit 50, and the refrigerant are supplied. A flowing heat pump cycle is formed. By adopting this configuration, in addition to the configuration shown in the second embodiment, the amount of heat pumped up by the indoor unit 50 at night is also heated in the storage unit 5 by the evaporator 6 acting as a condenser of the heat pump cycle. Can do.

  In FIG. 10, the control device 30 has the temperature of the volatile heat medium in the storage unit 5 detected by the temperature sensor 28 sufficiently higher than the temperature of the heat sink / radiator 2 detected by the temperature sensor 27. If it judges that, the valve | bulb 4 will be opened and it will control so that a volatile heat carrier will be conveyed. During this time, it is possible to continue using the cooling exhaust heat, but a bypass 46 and a heat exchanger 47 may be provided separately as in the configuration described in the third embodiment shown in FIG.

  When air conditioning using the indoor unit 50 is not required, the refrigerant is prevented from flowing into the bypass 51 by adjusting the valves so that the flow path shown in FIG. ing.

  When heating is required, the valves 6 are controlled so as to form the heat pump cycle of the flow path shown in FIG. 12C, so that the evaporator 6 and the indoor unit 50 are in parallel. Is configured to be used for indoor heating.

  As described above, in the fourth embodiment, as in the third embodiment, even when the temperature of the heat sink / radiator 2 is high in summer or the like, mainly by using the cooling exhaust heat peculiar to summer, The storage unit 5 can be heated to a level at which the volatile heat medium can be sufficiently transported.

  In addition, about the operation control of the other part in Embodiment 4, it can carry out similarly to the method as described in Embodiment 1,2.

  Note that the operations of the solar heat pump system described in Embodiments 3 and 4 can also be used in the same manner when a plurality of indoor units 50 are provided.

  In the third and fourth embodiments, the configuration in which the solar cell panel 44 is installed in the heat sink / radiator 2 is described. Of course, the heat collecting panel 1 may be used instead of the solar cell panel 44.

  In the first and second embodiments, carbon dioxide is used as a refrigerant used in the heat pump cycle, but natural refrigerants such as HCFC, HFC, hydrocarbons, and ammonia may be used. The same effect as described above can be obtained in.

  Moreover, in Embodiment 2-4, although crystalline silicon is used for the photovoltaic cell 16, you may use compounds, such as an amorphous silicon and CIS, and if the semiconductor is used, if the above is used, The same effect can be obtained.

  Moreover, in Embodiment 2-4, the electric power generated with the solar cell panel 44 is not limited to supplying the whole quantity to the compressor 7 of a heat pump cycle. Surplus power may be stored in a separately installed power storage device, or may be sold in cooperation with a power company.

  In the solar heat pump systems of Embodiments 1 to 4, the valve 4 is provided in the pipe 3, but the valve 4 is not necessarily provided. However, it is preferable to provide the valve 4 so that the solar heat collection can be efficiently performed in connection with the operation of the heat pump cycle. This is because when not required, the valve 4 is closed and the flow path of the volatile heat medium is cut off, and the valve 4 can be opened and transported only when the temperature of the heat sink / radiator 2 is relatively high.

  In addition, the refrigerant flow distribution method, valves, and the like described in the first to fourth embodiments are not limited to these configurations and controls, and can perform the target operation described in the first to fourth embodiments. And control.

  The program of the present invention is a program for causing a computer to execute the function of the pressure control means of the above-described solar heat pump system of the present invention, and is a program that operates in cooperation with the computer.

  Further, the recording medium of the present invention is a recording medium carrying a program for causing a computer to execute the function of the pressure control means of the above-described solar heat pump system of the present invention. Is a recording medium used in cooperation with the computer.

  Further, one usage form of the program of the present invention may be an aspect in which the program is recorded on a computer-readable recording medium and operates in cooperation with the computer.

  The recording medium includes a ROM and the like, and the transmission medium includes a transmission medium such as the Internet, light, radio waves, sound waves, and the like.

  The computer of the present invention described above is not limited to pure hardware such as a CPU, and may include firmware, an OS, and peripheral devices.

  As described above, the configuration of the present invention may be realized by software or hardware.

  Although the present invention has been described above, the heat collection panel, solar cell panel, heat sink / heat absorber, compressor, expansion valve, evaporator, heat radiating section, heat storage section, valve, temperature sensor, power measuring means, etc. and their surroundings As for the device, the realization means is not limited, and known means are used. Moreover, a well-known means is used also about a solar cell panel, a power conditioner, the cycle control apparatus of a heat pump, and other members required for installation.

  The solar heat pump system and the operating method thereof according to the present invention can perform solar heat collection with low transport power with good controllability, and can obtain high-temperature heat with high utility value with low energy as much as necessary. It is useful as a solar heat pump system that can use only the necessary amount of solar heat and that can uniformly cool the solar cell panel, and its operating method.

The block diagram of the solar heat pump system in Embodiment 1 of this invention Sectional block diagram of the heat sink / heat radiator in Embodiment 1 of the present invention FIG. 2 is a cross-sectional configuration diagram of the heat sink / radiator in the flow channel direction according to the first embodiment of the present invention (a-a ′ cross-sectional view in FIG. 2). FIG. 3 is a cross-sectional configuration diagram in a direction perpendicular to the flow path of the heat sink / radiator in Embodiment 1 of the present invention (b-b ′ cross-sectional view in FIG. 3). The block diagram of the solar heat pump system in Embodiment 2 of this invention Sectional block diagram of the heat sink / heat radiator in Embodiment 2 of the present invention The block diagram of the solar heat pump system in Embodiment 3 of this invention (A)-(c) The figure which shows the heat pump cycle for every condition at the time of the solar radiation of the solar heat pump system of Embodiment 3 of this invention. (A)-(d) The figure which shows the heat pump cycle for every conditions at the time of the non-sunlight of the solar heat pump system of Embodiment 3 of this invention. The block diagram of the solar heat pump system in Embodiment 4 of this invention (A)-(d) The figure which shows the heat pump cycle for every condition at the time of solar radiation of the solar heat pump system of Embodiment 4 of this invention. (A)-(c) The figure which shows the heat pump cycle for every condition at the time of the non-sunlight of the solar heat pump system of Embodiment 4 of this invention. Working principle diagram of conventional adsorption refrigeration technology (quoted from Non-Patent Document 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat collection panel 2 Absorber / heater 3 Piping 4 Valve 5 Storage part 6 Evaporator 7 Compressor 8 Radiation part 9 Expansion valve 10 Refrigerant flow path 11 Heat storage part 12 Hot water formation flow path 13 Water supply port 14 Hot water supply port 15 Cover glass Reference Signs List 16 Solar Cell 17 Outer Frame 18 Heat Transfer Plate 19 Vaporizing Unit 20 Heat Insulating Plate 21 Steam Flow Path 22 Fin 23 Throttle Portion 24 Liquid Reservoir 25 Temperature Sensor 26 Throttle Portion Exit 27 Temperature Sensor 28 Temperature Sensor 29 Power Measurement Unit 30 Control Device 33 Adsorbent 39 Sealing part 42 Temperature sensor 43 Temperature sensor 44 Solar panel 45 Humidity sensor 46 Bypass 47 Heat exchanger 48 Three-way valve 49 Three-way valve 50 Indoor unit 51 Bypass 52 Expansion valve 53 Bypass 54 Three-way valve 55 Valve 56 Valve 57 Three-way valve 58 Bypass 59 Valve 60 Bypass 61 Three-way valve 62 Bypass 63 Valve 64 Valve 65 Expansion valve 70 Heat collecting part 71 Adsorbent 72 Condenser S Solar radiation

Claims (19)

A heat collector that collects solar heat, a heat absorber that is thermally connected to the heat collector and adsorbs a volatile medium and distributes the vapor of the volatile medium therein, and a storage unit that condenses and stores the vapor , A heat-absorbing / dissipating cycle device having a volatile medium flow path connecting the heat-absorbing / dissipating radiator and the storage unit;
A solar heat pump system comprising: a compressor, a heat radiator, an expansion valve, and a heat pump cycle device having an evaporator thermally connected to the storage unit. The heat collector is plate-shaped,
The heat absorber is arranged so that heat on the back surface of the heat collector is transferred to the adsorbed volatile medium,
The solar heat pump system according to claim 1, wherein the heat absorbing / dissipating cycle apparatus further includes a solar cell panel thermally connected to a surface of the heat collector.   The volatile heat medium stored in the storage unit is vaporized by the pressure difference between the heat absorber and the storage unit and moves to the heat absorber, and is absorbed or condensed in the heat absorber. The solar heat pump system according to claim 1 or 2.   The solar heat pump system according to any one of claims 1 to 3, wherein the storage unit is disposed at a position where the temperature is lower than that of the heat sink / radiator during solar radiation and a temperature higher than that of the heat sink / heat radiator during non-sunlight. . A first temperature measuring means for measuring the temperature of the heat sink / radiator or the temperature of the outside air;
Second temperature measuring means for measuring the temperature inside the storage unit;
A control valve provided in the volatile medium flow path for controlling the flow of the vapor in the volatile medium flow path;
5. The solar heat pump according to claim 1, wherein the control valve opens and closes based on a difference between the temperature of the heat absorber or the outside air and the temperature inside the storage unit to control the flow of the steam. 6. system.   The control valve opens when the temperature of the heat absorber / external air or the outside air is higher than the temperature inside the storage unit and the temperature difference is larger than a predetermined value, and the control valve opens in the volatile medium flow path. The solar heat pump system of Claim 5 which distribute | circulates the said vapor | steam.   Furthermore, the solar heat pump system in any one of the Claims 1 thru | or 4 provided with the pressure control means which controls the pressure difference between the inside of the said heat absorber and the inside of the said storage part.   The solar heat pump system according to claim 7, wherein the pressure control unit adjusts a pressure difference between the inside of the heat sink / heater and the inside of the storage unit by controlling an operation power amount of the heat pump cycle. A first temperature measuring means for measuring the temperature of the heat sink / radiator or the temperature of the outside air;
Second temperature measuring means for measuring the temperature inside the storage unit,
When the difference between the temperature of the heat sink or the outside air and the temperature inside the storage unit is smaller than a predetermined value, the pressure control means reduces the pressure in the flow path of the volatile heat medium to reduce the suction. The solar heat pump system according to claim 7 or 8, which increases an evaporation rate of the volatile heat medium in a radiator. Furthermore, it comprises a power generation amount measuring means for measuring the power generation amount of the solar cell panel,
The said pressure control means changes the pressure of the flow path of the said volatile heat medium based on the electric power generation amount of the said solar cell panel, and adjusts the evaporation rate of the said volatile heat medium in the said heat sink. The solar heat pump system according to any one of 7 to 9. Furthermore, a means for detecting the humidity of the outside air is provided,
The pressure control means adjusts the pressure of the flow path of the volatile heat medium based on any one of the temperature of the heat sink / radiator, the temperature of the outside air, the temperature inside the storage unit, and the humidity of the outside air. The solar heat pump system according to claim 9 or 10, which is adjusted.   12. The heat pump cycle device according to any one of claims 1 to 11, wherein the heat pump cycle device is operated in reverse to dissipate heat from the evaporator, thereby heating the storage unit and increasing the pressure inside the storage unit rather than inside the heat absorber. The solar heat pump system described in Crab.   The solar heat pump system according to claim 1, wherein the storage unit is thermally connected to the radiator and is heated by heat radiated from the radiator.   The heat storage unit further includes a heat storage unit that is thermally connected to both the radiator and the storage unit, stores heat radiated from the radiator, and heats the storage unit by the heat. The solar heat pump system in any one of thru | or 12. The heat pump cycle device further includes an indoor unit,
The solar heat pump system according to any one of claims 1 to 14, wherein in the heat pump cycle device, exhaust heat of the indoor unit during cooling operation is used for heating the storage unit. In the operation method of the solar heat pump system according to claim 5,
When the temperature of the heat collector becomes equal to or higher than a predetermined temperature during solar radiation, the storage unit is vaporized through the volatile medium flow path by vaporizing the volatile heat medium adsorbed on the heat absorber. Opening the control valve to move to
When the temperature inside the heat sink / radiator becomes lower than the temperature inside the storage unit by a predetermined temperature difference or more during substantially non-sunlight, the volatile property is stored in the storage unit after being condensed. A method of operating the solar heat pump system, comprising: evaporating a heat medium and opening the control valve to move the heat medium to the heat sink / radiator through the volatile medium flow path. In the operation method of the solar heat pump system according to claim 9,
When the difference between the temperature of the heat absorber or the outside air and the temperature inside the storage unit is smaller than a predetermined value, the volatile property is increased so as to increase the evaporation rate of the volatile heat medium in the heat absorber. A method for operating a solar heat pump system comprising the step of reducing the pressure in the flow path of the heat medium.   The program for functioning a computer as the said pressure control means of the solar heat pump system in any one of Claims 7 thru | or 11. A recording medium carrying the program according to claim 18 and usable by a computer.

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