JP2004150791A - Heat pump device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve nonconformity such as requiring a large capacity of hot water storage tank in a conventional thermal energy storage heat pump system wherein a large quantity of hot water is stored inside a hot water storage tank while repeating a cycle of circulating the hot water inside the hot water storage tank and raising its temperature using condensing heat of high-temperature and high-voltage refrigerant gas delivered from a compressor and the hot water is fed through a faucet and the like. <P>SOLUTION: This thermal energy storage heat pump system is provided with a refrigerant passage 1 for circulating a prescribed heat medium, a compression means 2 raising the temperature of the heat medium to be circulated using boosting, a heating object medium passage 6 for circulating a prescribed heating object medium, a heat radiating means 3 raising the temperature of the heating object medium to be circulated using the heat exchange with the temperature-risen heating medium to be circulated and a refrigerant heating means 8 raising the temperature of the heat medium to be circulated and/or the heating object medium to be circulated using a prescribed chemical reaction. <P>COPYRIGHT: (C)2004,JPO

Description

  The present invention relates to a heat pump device that can be used for hot water supply and air conditioning, for example.

  The conventional heat storage heat pump system repeats a cycle of circulating hot water inside the hot water storage tank using the heat of condensation of the high-temperature and high-pressure refrigerant gas discharged from the compressor to raise the temperature, while storing a large amount of heat inside the hot water storage tank. Hot water is stored and the hot water is supplied through a faucet or the like (for example, see Patent Document 1).

Some hot water storage tanks are provided with an auxiliary heating source such as an electric heater in order to shorten the time required to raise the temperature of the hot water in the hot water storage tank to a predetermined temperature.
JP-A-11-193958

  However, such a conventional heat storage heat pump system has a problem that a large-capacity hot water storage tank is required.

  More specifically, a large-capacity hot water storage tank is indispensable to start hot water supply quickly, and it is difficult to install and construct in terms of installation space, weight of the hot water storage tank, load resistance of the installation part, etc. Or it takes too long to raise the temperature of the hot water inside the hot water storage tank to a predetermined temperature.

  When the hot water storage tank is provided with an auxiliary heating source such as an electric heater, the electric heater has a large capacity to realize instantaneous heat supply in which the hot water inside the hot water storage tank is rapidly heated by the auxiliary heating such as an electric heater. In many cases. Further, regardless of the heat supply amount, since the temperature is uniformly increased during the supply, the energy loss tends to increase.

  The present invention has been made in consideration of the above-described conventional problems, and has as its object to provide, for example, a heat pump device that does not require a large-capacity hot water storage tank.

A first aspect of the present invention provides a heat medium flow path through which a predetermined heat medium flows,
The heat medium to be circulated, a heat medium pressurizing and heating means for raising the temperature using pressurizing,
A heated medium flow path through which a predetermined heated medium flows,
The heated medium to be circulated, a heated medium heating unit that raises the temperature by utilizing heat exchange with the circulated heated medium,
A heat pump device comprising: a chemical reaction heating unit that raises the temperature of the circulated heat medium and / or the circulated heated medium by using a predetermined chemical reaction.

  In a second aspect of the present invention, the chemical reaction temperature raising means raises the temperature of the circulated heat medium and / or the circulated heated medium by using reaction heat of a predetermined reversible exothermic reaction. 1 is a heat pump device according to a first aspect of the present invention.

The third aspect of the present invention further includes a working medium storage means for storing a predetermined working medium,
The predetermined reversible exothermic reaction is a heat pump device according to the second aspect of the present invention, in which the stored predetermined working medium is adsorbed by a predetermined adsorbent.

According to a fourth aspect of the present invention, the adsorbed predetermined working medium is desorbed from the predetermined adsorbent, except when a temperature increase utilizing the predetermined reversible exothermic reaction is performed,
The working medium storage means is the heat pump apparatus according to the third aspect of the present invention for storing the detached working medium again.

  According to a fifth aspect of the present invention, the predetermined working medium is detached by utilizing heat exchange with the circulated heated medium and / or the circulated heated medium. This is a fourth embodiment of the heat pump device of the present invention.

  According to a sixth aspect of the present invention, (A) in the case where the temperature is raised by using the predetermined reversible exothermic reaction, the heating medium pressure rising means is provided by the chemical reaction heating means with respect to the heating medium flow path. The heat medium flow path is switched so that it is located on the downstream side upstream of the heated medium temperature raising means. The heat pump according to the second aspect of the present invention, further comprising a heat medium flow path switching means for switching the heat medium flow path so as to be located downstream of the heat medium pressure increasing temperature raising means and upstream of the heated medium temperature increasing means. Device.

  A seventh aspect of the present invention is the heat pump apparatus according to the third aspect of the present invention, wherein the stored predetermined working medium is vaporized or decomposed and is adsorbed by the predetermined adsorbent.

  An eighth aspect of the present invention is the heat pump apparatus according to the seventh aspect of the present invention, wherein the predetermined working medium is vaporized or decomposed by utilizing heating and / or depressurization.

According to a ninth aspect of the present invention, at least a part of the heated medium to be heated is accumulated,
An eighth aspect of the present invention is directed to the heat pump apparatus according to the eighth aspect, wherein the heating is performed by using the heated medium that has been heated and accumulated.

  A tenth aspect of the present invention is the heat pump device according to the second aspect, wherein the predetermined reversible exothermic reaction is a hydrogenation reaction of a predetermined organic compound.

  In the eleventh invention, the predetermined reversible exothermic reaction is defined as water adsorption to any one of a predetermined carbon-based porous material, a predetermined inorganic-based porous material, and a predetermined water-absorbing polymer material. It is a heat pump apparatus of the second invention, which is a reaction.

  A twelfth invention is the heat pump device according to the second invention, wherein the predetermined reversible exothermic reaction is a hydrogenation reaction of a predetermined hydrogen storage material having a hydrogen storage capacity.

  A thirteenth aspect of the present invention is the heat pump device according to the second aspect, wherein said predetermined reversible exothermic reaction is an ammoniating reaction of a predetermined inorganic salt.

In a fourteenth aspect of the present invention, a predetermined heat receiving fin is provided on an outer surface of the heat medium flow path and / or the heated medium flow path,
The heat pump device according to the third aspect of the present invention is such that the predetermined adsorbent is filled between the provided predetermined heat receiving fins.

  According to a fifteenth aspect of the present invention, the filled predetermined adsorbent is mixed with a predetermined material having a higher thermal conductivity than that of the predetermined adsorbent. Heat pump device.

A sixteenth aspect of the present invention provides a heat medium circulating step of circulating a predetermined heat medium using a predetermined heat medium flow path,
The heat medium to be circulated, a heat medium pressurizing and heating step of raising the temperature using pressurizing,
A heated medium flowing step of flowing a predetermined heated medium using a predetermined heated medium flow path,
The heated medium to be circulated, a heated medium heating step of increasing the temperature using heat exchange with the circulated heated medium,
A step of raising the temperature of the flowing heat medium and / or the flowing medium to be heated by utilizing a predetermined chemical reaction.

  As is apparent from the above description, the present invention has an advantage that a large-capacity hot water storage tank is not required in the heat storage heat pump system.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
First, the configuration of the heat storage heat pump system according to the present embodiment will be described mainly with reference to FIG. 1, which is a configuration diagram of the heat storage heat pump system according to the first embodiment of the present invention. However, detailed descriptions of well-known means that have been widely used in the past are omitted.

  The refrigeration cycle of the heat storage heat pump system according to the present embodiment includes a refrigerant flow path 1 through which a refrigerant flows, a compression means 2, a heat radiation means 3 for a heated medium flowing through a heated medium flow path 6, and an expansion means 4. And refrigerant evaporating means 5.

  Further, a reactor 7 for performing a hydrogenation / dehydrogenation reaction on a hydrogen storage material having a hydrogen storage capacity, a refrigerant heating means 8 for heating a refrigerant by reaction heat, and a lower temperature than the hydrogen storage material inside the reactor 7 A storage container 9 for storing hydrogen supplied to the reactor 7 and filled with a hydrogen storage material for performing a hydrogenation / dehydrogenation reaction, and a container heating means for heating the hydrogen storage material inside the storage container 9 10 and container cooling means 11 for cooling the hydrogen storage material inside the storage container 9.

  Next, the operation of the heat storage heat pump system according to the present embodiment will be described. In addition, while describing the operation of the heat storage heat pump system of the present embodiment, an embodiment of the heat pump method of the present invention will also be described (the same applies to other embodiments).

  (1) Operation at the start of operation: In the case of the start of operation when the temperature of the refrigerant is not sufficiently high (when the temperature is raised using a reversible exothermic reaction), the compression means 2 is connected to the refrigerant flow path. The refrigerant flow path 1 is switched so that the refrigerant flow path 1 is located downstream of the refrigerant heating means 8 and upstream of the heat radiation means 3.

  Specifically, when the operation of the heat pump is started, the refrigerant is switched to the side a (see FIG. 1) of the three-way valve system 18 having four three-way valves, so that the refrigerant flows into the refrigerant flow path 1 penetrating the inside of the reactor 7. After the circulation, the pressure increase in the compression means 2 is started.

  However, it takes time for the flowing refrigerant to reach the rated temperature, for example, because the heat capacity of the compression means 2 is large.

  Therefore, during this time, dehydrogenation reaction from the hydrogen storage material filled in the storage container 9 is performed using atmospheric heat by the container heating means 10. The hydrogen desorbed here is supplied to the reactor 7 and uses the reaction heat of the hydrogenation reaction (heat generation) of the filled hydrogen storage material to supplementarily heat the refrigerant.

  The generated reaction heat is transferred to the refrigerant flowing inside the refrigerant flow path 1 on the upstream side of the compression means 2, and then, in the heat radiation means 3, the refrigerant flowing inside the refrigerant flow path 1 and the flow path A Heat exchange is performed with a heated medium (here, water) supplied from the side through the heated medium flow path 6. The reaction heat of the hydrogenation reaction of the hydrogen storage material is used. However, the hydrogenation / dehydrogenation reaction of an organic compound (acetone-isopropanol or the like is used as a reaction system of the organic compound, the same applies hereinafter) or carbon Auxiliary refrigerant is supported by the absorption and desorption of water on adsorbents composed of inorganic porous materials, inorganic porous materials, or water-absorbing polymer materials, or the ammoniation and desorption of ammonia complexes of inorganic salts. May be heated. However, from the viewpoint that the working medium does not freeze even in a cold region, the hydrogenation / dehydrogenation reaction, the ammoniaation / desorption reaction, and the like are excellent in convenience.

  By supplementarily heating the refrigerant in this way, it is possible to shorten the time from the start of operation of the heat pump to the time when hot water is discharged at a predetermined temperature, so that hot water can be used immediately when needed. It is possible to realize a highly convenient heat storage heat pump system with excellent performance.

  Further, as the hydrogen storage alloy, an alloy composed of La, Mn, Mg, Ti, Fe, Ca, V and the like is used.

  Although a hydrogen storage alloy is used as the hydrogen storage material, a carbon-based material may be used, and the same effects as described above can be obtained.

    (2) Operation at the time of continuation of operation; in the case of continuation of operation or at the time of operation stop (other than the case where the temperature is raised using a reversible exothermic reaction), the refrigerant heating means 8 The refrigerant flow path 1 is switched so that the refrigerant flow path is located downstream of the compression means 2 and upstream of the heat radiation means 3.

  Specifically, thereafter, when the temperature of the refrigerant downstream of the compression means 2 reaches a predetermined temperature (60 ° C.) or more, the three-way valve system 18 is switched to the side b (see FIG. 1). Then, the hydrogen storage material filled in the reactor 7 is heated by the refrigerant heating means 8 switched to the downstream side of the compression means 2 to start the dehydrogenation reaction. At this time, the desorbed hydrogen performs a hydrogenation reaction with the hydrogen storage material filled in the storage container 9 and is stored again in the storage container 9.

  During this time, the medium to be heated is supplied from the flow path B side, and the reaction heat of the hydrogenation reaction is transferred to the medium to be heated by the container cooling means 11. Here, the preheated medium is also subjected to heat exchange with the refrigerant flowing inside the refrigerant flow path 1 in the heat radiating means 3.

  As described above, since the storage container 9 is filled with the hydrogen storage material for storing hydrogen corresponding to the auxiliary heating amount required at the start of operation of the heat pump, the capacity of the hot water storage tank can be reduced. It becomes. Specifically, in the case of a hot water supply device, when the hydrogen stored in the storage container 9 is converted into a reaction heat amount, the retained heat amount is 1/10 or less as compared with a device having a conventional hot water storage tank. Further, the heat storage density of the storage container 9 is more than doubled, and a volume of 1/20 or less can be realized.

  Therefore, it is possible to realize a heat storage heat pump system excellent in installation space, weight of the storage container 9, installation resistance such as load resistance of the installation part, and workability. Needless to say, in addition to the storage container 9 corresponding to the auxiliary heating amount necessary at the start of the above-described operation, a hot water storage tank with a small amount of hot water is separately installed in order to immediately start supplying the heated medium (hot water) whose temperature has been raised. You may.

  By using a chemical reaction system that performs a reversible endothermic reaction when the temperature reaches a predetermined temperature or higher, a simple heat storage heat pump system that does not require a complicated system and operating method when regenerating the reactor 7 can be realized.

  In the present embodiment, the compression means 2 comes to the downstream side of the reactor 7 at the start of operation, but the compression means 2 may come to the upstream side of the reactor 7 at the start of operation. A similar effect can be obtained. However, in order to keep the temperature of the evaporating means 5 low and to secure a sufficient amount of heat pumped there, it is more desirable that the compression means 2 be located downstream of the reactor 7 at the start of operation. On the other hand, in order to store hydrogen in the storage container 9 again, it is necessary that the compression means 2 be located upstream of the reactor 7 at the time of continuation of operation or at the end of operation (for that, the refrigerant flow path 1 Switching was required).

  Further, after the reaction heat of the hydrogenation reaction in the reactor 7 is transferred to the refrigerant, the heat is transferred from the refrigerant to the medium to be heated. However, the structure may be such that the heat is directly transferred to the medium to be heated. A similar effect can be obtained.

  Further, dehydrogenation reaction is performed from the hydrogen storage material filled in the storage container 9 by using atmospheric heat by the container heating means 10, but the solar heat, the atmospheric heat, the retained heat of city water, or The exhaust heat of the bath may be used, and the same effect as above can be obtained.

  Further, the exothermic reaction of the reversible chemical reaction is used for auxiliary heating at the start of the operation of the heat pump. However, the auxiliary heating when the amount of heat pumped from the evaporating means 5 is insufficient due to a decrease in outside air temperature or the like. And the same effect as described above can be obtained.

  Furthermore, although the heat storage heat pump system is used for hot water supply using water as the medium to be heated, it may be used for heating using air as the medium to be heated, and the same effects as described above can be obtained.

  Note that the heat pump device of the present invention corresponds to the heat storage heat pump system of the present embodiment. Further, the heat medium flow path of the present invention corresponds to the refrigerant flow path 1, the heat medium pressurizing and heating means of the present invention corresponds to the compression means 2, and the heated medium flow path of the present invention corresponds to the heated medium flow path 6. The heating medium heating means of the present invention corresponds to the heat radiating means 3, and the chemical reaction heating means of the present invention corresponds to the refrigerant heating means 8. The working medium storage means of the present invention corresponds to the storage container 9. Further, the heat medium flow switching device of the present invention corresponds to the three-way valve system 18.

(Embodiment 2)
First, referring mainly to FIG. 2 which is a configuration diagram of a heat storage heat pump system according to Embodiment 2 of the present invention, and FIG. 3 which is a partial configuration diagram of a reactor 7 of the heat storage heat pump system according to Embodiment 2 of the present invention. The configuration of the heat storage heat pump system according to the present embodiment will be described.

  The configuration of the heat storage heat pump system according to the present embodiment is similar to the configuration of the heat storage heat pump system according to the first embodiment described above. Therefore, the configuration of the heat storage heat pump system according to the present embodiment will be described mainly on the differences from the configuration of the heat storage heat pump system according to the first embodiment.

  The heat storage heat pump system according to the present embodiment includes a reactor 7 for performing a water absorption / desorption reaction on an adsorbent having a water adsorption ability, a storage container 9 for storing water supplied to the reactor 7, and a storage container. 9 is provided with a vessel decompression means 13 for decompressing the inside and evaporating water.

  Further, the reactor 7 has a configuration in which an adsorbent 15 and a high heat conductive mixture 16 are filled between heat receiving fin groups 14 provided in a heated medium flow path 6 penetrating therethrough (see FIG. 3). .

  Next, the operation of the heat storage heat pump system according to the present embodiment will be described.

  The operation of the heat storage heat pump system of the present embodiment is similar to the operation of the heat storage heat pump system of the first embodiment. Therefore, the operation of the heat storage heat pump system according to the present embodiment will be described mainly on the differences from the operation of the heat storage heat pump system according to the first embodiment.

  (1) Operation at the time of starting operation: When the operation of the heat pump is started, the refrigerant pressurized by the compression means 2 passes through the inside of the heat radiation means 3 by switching the three-way valve 118 to the side a (see FIG. 2). The circulation to the refrigerant channel 1 is started. However, it takes time for the flowing refrigerant gas to reach the rated temperature, for example, because the heat capacity of the compression means 2 is large.

  During this time, the water inside the storage container 9 is evaporated by the container pressure reducing means 13. The water evaporated here is supplied to the reactor 7 and supplementarily heats the medium to be heated by utilizing the heat of adsorption of water on the filled adsorbent 15.

  Specifically, as shown in FIG. 3, an adsorbent 15 of silica gel is filled between heat receiving fin groups 14 provided in the heated medium flow path 6 penetrating the inside of the reactor 7, The water vapor supplied from the storage container 9 is adsorbed by the adsorbent 15, where heat is generated. Further, the generated reaction heat exchanges heat with the heated medium (here, air) supplied from the flow path A side through the heated medium flow path 6 in the heated medium heating means 12 having the above configuration. . Here, a high heat conductive mixture 16 made of fibrous copper is dispersed and arranged in the adsorbent 15, so that the generated heat is transferred to the medium to be heated.

  In addition, water absorption / desorption reactions on the adsorbent are used. However, the reaction heat of hydrogenation / dehydrogenation of organic compounds or hydrogenation of hydrogen storage materials, or ammoniaation / desorption of ammonia complexes of inorganic salts is used. The refrigerant may be supplementarily heated using a separation reaction or the like.

  In this way, it is possible to shorten the time from the start of the operation of the heat pump to the supply of air at a predetermined temperature, so that heating can be performed immediately when needed. The heat storage heat pump system with high cost can be realized.

  Although silica gel is used as the adsorbent, an inorganic porous material such as zeolite, a carbon-based porous material such as activated carbon, or a water-absorbing polymer material such as polyacrylamide may be used. The effect is obtained. However, activated carbon, silica gel and polyacrylamide are particularly effective for desorbing water from the adsorbent at a low temperature.

  Further, although water is used as a working medium for the adsorption / desorption reaction, methanol or the like may be used, and the same effects as described above can be obtained. However, from the viewpoint of the supply of working medium, water with infrastructure is excellent.

  The heat transfer efficiency is increased by disposing the heat receiving fin group 14 in the heated medium flow path 6 inside the reactor 7 and dispersing and distributing the high heat conductive mixture 16 in the adsorbent 15 filled therebetween.

In addition, the inside of the storage container 9 is depressurized by the container decompression means 13 to evaporate water, so that an increase in the amount of heat radiation accompanying the temperature rise of the storage container 9 can be suppressed.
Thus, a heat storage heat pump system with low energy consumption and excellent economy can be realized.

  (2) Operation during operation continuation; When the refrigerant temperature downstream of the compression means 2 reaches a predetermined temperature (60 ° C.) or higher, the three-way valve 118 is switched to the side b (see FIG. 2). Then, since the flow path is switched so that the refrigerant heating unit 8 is located on the downstream side of the compression unit 2, the adsorbent filled in the reactor 7 is heated by the refrigerant heating unit 8, and the dehydration reaction is started.

  At this time, the desorbed water is condensed and stored in the storage container 9. Further, the heated medium flow path 6 is switched to the flow path B side, and heat exchange between the refrigerant and the heated medium is performed in the heat radiating means 3.

  In the present embodiment, fibrous copper is used as the high heat conductive mixture 16, but the shape is not limited to this, and may be, for example, granular.

  Also, the material is not limited to this, and any material having a higher thermal conductivity than the adsorbent, such as metal or carbon, may be used, and the same effect as described above can be obtained.

  Further, the reaction heat of the water adsorption reaction in the reactor 7 is directly transferred to the medium to be heated. However, after the heat is transferred to the refrigerant, the heat may be transferred from the refrigerant to the medium to be heated. A similar effect can be obtained.

  Further, although the inside of the storage container 9 is depressurized by the container decompression means 13 and the evaporated water is supplied to the reactor 7, the water may be supplied to the reactor 7 as a liquid. Although the time from the start of operation of the heat pump to the supply of air at a predetermined temperature is slightly longer than that described above, since the container pressure reducing means 13 is not required, the heat storage heat pump system can be further simplified.

  Further, the exothermic reaction of the reversible chemical reaction is used for auxiliary heating at the start of the operation of the heat pump. However, the auxiliary heating when the amount of heat pumped from the evaporating means 5 is insufficient due to a decrease in outside air temperature or the like. And the same effect as described above can be obtained.

  Although the heating operation for heating the medium to be heated has been described, in the heat storage heat pump system, when the refrigeration cycle is circulated in the reverse direction, the medium to be heated is cooled, and the cooling operation can be performed. is there.

  Further, although the heat storage heat pump system is used for heating by using air as the medium to be heated, it may be used for hot water supply by using water as the medium to be heated, and the same effects as above can be obtained.

  The heat medium flow switching means of the present invention corresponds to the three-way valve 118.

(Embodiment 3)
First, the configuration of the heat storage heat pump system according to the present embodiment will be described mainly with reference to FIG. 4, which is a configuration diagram of the heat storage heat pump system according to the third embodiment of the present invention.

  The configuration of the heat storage heat pump system according to the present embodiment is similar to the configuration of the heat storage heat pump system according to the first embodiment described above. Therefore, the configuration of the heat storage heat pump system according to the present embodiment will be described mainly on the differences from the configuration of the heat storage heat pump system according to the first embodiment.

  The heat storage heat pump system according to the present embodiment stores a reactor 7 that performs an ammoniating / deammonification reaction on inorganic salts, a refrigerant heating unit 8 that heats a refrigerant by reaction heat, and stores hydrogen supplied to the reactor 7. A storage container 9 (filled therein with an inorganic salt that undergoes an ammonification / deammonification reaction at a lower temperature than the inorganic salts inside the reactor 7).

  Specifically, the inside of the reactor 7 is filled with iron chloride, and the inside of the storage container 9 is filled with calcium chloride.

  Next, the operation of the heat storage heat pump system according to the present embodiment will be described.

  The operation of the heat storage heat pump system of the present embodiment is similar to the operation of the heat storage heat pump system of the first embodiment. Therefore, the operation of the heat storage heat pump system according to the present embodiment will be described mainly on the differences from the operation of the heat storage heat pump system according to the first embodiment.

  (1) Operation at the start of operation: When the operation of the heat pump is started, the refrigerant flows through the refrigerant flow path 1 penetrating the inside of the reactor 7 by the switching of the three-way valve system 18 (a side), and then the compression means 2 To start boosting.

  However, it takes time for the flowing refrigerant to reach the rated temperature, for example, because the heat capacity of the compression means 2 is large.

  In the meantime, the deammonia reaction from the inorganic salts filled in the storage container 9 is performed using the hot water stored in the hot water storage tank 17 by the container heating means 10. The ammonia desorbed here is supplied to the reactor 7 and uses the reaction heat of the ammoniating reaction (exothermic reaction) of the charged inorganic salts to supplementarily heat the refrigerant upstream of the compression means 2. .

  Here, the hot water stored in the hot water storage tank 17 is generated by operating the heat pump during a time period when the electricity rate is low. By using the heat retained in the hot water, a heating amount more than three times as large as the electric input can be secured, so that the energy efficiency is higher than in the case where air heated by an electric heater or the like is supplied. Furthermore, by using the electric power in the time period when the electricity rate is low and using it for the operation of the heat pump system, it is possible to realize a more economical heat storage heat pump system. The heat of reaction of the ammoniation / desorption reaction of the ammonia complex of the inorganic salt is used. However, the hydrogenation / dehydrogenation reaction of the organic compound, the carbon-based porous material, the inorganic-based porous material, or the water-absorbing material may be used. A water absorption / desorption reaction on an adsorbent made of a molecular material or a hydrogenation / dehydrogenation reaction of a hydrogen storage material may be used. By supplementarily heating the refrigerant, it is possible to shorten the time from the start of operation of the heat pump to when the hot water is discharged at a predetermined temperature, so that the hot water can be used immediately when needed. A highly convenient heat storage heat pump system can be realized.

  In addition, although iron chloride and calcium chloride are used as inorganic salts, other chlorides such as magnesium chloride and manganese chloride may be used, and the same effects as described above can be obtained. Of course, it is desirable that the operating temperature of the inorganic salts charged into the storage container 9 be lower than the operating temperature of the inorganic salts charged into the reactor 7.

  (2) Operation during operation continuation; After that, when the refrigerant temperature on the downstream side of the compression means 2 reaches a predetermined temperature (60 ° C.) or higher, the three-way valve system 18 is switched (b side) to thereby perform the downstream side of the compression means 2. The ammonia complex of the inorganic salt filled in the reactor 7 is heated by the refrigerant heating means 8 switched to the above, and the deammonification reaction is started. At this time, the desorbed ammonia performs an ammonification reaction with the inorganic salts filled in the storage container 9 and is stored in the storage container 9 again.

  Here, the operation of the heat pump is continued to store the desorbed ammonia in the storage container 9 even if the demand for hot water supply from the user ends, if ammonia remains inside the reactor 7. Done. Therefore, it is possible to realize a highly convenient heat storage heat pump system that is excellent in quick hot water and that can reliably obtain hot water at the start of operation.

  In the present embodiment, the compression means 2 comes to the downstream side of the reactor 7 at the start of operation, but the compression means 2 may come to the upstream side of the reactor 7 at the start of operation. A similar effect can be obtained.

  In addition, after the reaction heat of the ammonification reaction in the reactor 7 is transferred to the refrigerant, the heat is transferred from the refrigerant to the medium to be heated. However, the heat may be directly transferred to the medium to be heated. A similar effect can be obtained.

  In addition, the heat pump was operated by the container heating means 10 during a time period when the electricity rate was low, and a dehydrogenation reaction was performed from the hydrogen storage material filled in the storage container 9 by using the retained heat of the generated hot water. . However, the present invention is not limited to this, and atmospheric heat, solar heat, retained heat of city water, exhaust heat of a bath, or the like may be used, and the same effects as described above can be obtained.

  Further, the exothermic reaction of the reversible chemical reaction is used for auxiliary heating at the start of the operation of the heat pump. However, the auxiliary heating when the amount of heat pumped from the evaporating means 5 is insufficient due to a decrease in outside air temperature or the like. And the same effect as described above can be obtained.

  Furthermore, although the heat storage heat pump system is used for hot water supply using water as the medium to be heated, the heat storage system may be used for heating using air as the medium to be heated, and the same effects as above can be obtained.

  The present invention is useful, for example, because it can provide a heat pump device that does not require a large-capacity hot water storage tank.

Configuration diagram of a heat storage heat pump system according to Embodiment 1 of the present invention Configuration diagram of a heat storage heat pump system according to Embodiment 2 of the present invention Partial configuration diagram of reactor 7 of the heat storage heat pump system according to Embodiment 2 of the present invention. Configuration diagram of a heat storage heat pump system according to Embodiment 3 of the present invention.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Refrigerant flow path 2 Compression means 3 Heat radiating means 4 Expansion means 5 Evaporation means 6 Heated medium flow path 7 Reactor 8 Refrigerant heating means 9 Storage container 10 Container heating means 11 Container cooling means 12 Heated medium heating means 13 Container decompression means 14 Heat receiving fin group 15 Adsorbent 16 High heat conductive mixture 17 Hot water storage tank 18 Three-way valve system

Claims (16)

A heat medium flow path for circulating a predetermined heat medium,
The heat medium to be circulated, a heat medium pressurizing and heating means for raising the temperature using pressurizing,
A heated medium flow path through which a predetermined heated medium flows,
The heated medium to be circulated, a heated medium heating unit that raises the temperature by utilizing heat exchange with the circulated heated medium,
A heat pump device comprising: a chemical reaction heating means for raising the temperature of the circulated heat medium and / or the circulated medium to be heated by utilizing a predetermined chemical reaction.   The heat pump device according to claim 1, wherein the chemical reaction temperature raising means raises the temperature of the circulated heat medium and / or the circulated heated medium by using a reaction heat of a predetermined reversible exothermic reaction. . Further comprising working medium storage means for storing a predetermined working medium,
The heat pump device according to claim 2, wherein the predetermined reversible exothermic reaction is a reaction in which the stored predetermined working medium is adsorbed by a predetermined adsorbent. The adsorbed predetermined working medium is desorbed from the predetermined adsorbent in cases other than when the temperature is raised using the predetermined reversible exothermic reaction,
The heat pump device according to claim 3, wherein the working medium storage unit stores the removed working medium again.   5. The heat pump according to claim 4, wherein the desorption of the predetermined working medium is performed by using heat exchange with the circulated heated medium and / or the circulated heated medium. 6. apparatus.   (A) in a case where the temperature is raised using the predetermined reversible exothermic reaction, the heating medium pressurizing and heating means is provided on the heating medium flow path at a downstream side of the chemical reaction heating means with respect to the heating medium; (B) In other cases, the chemical reaction heating means is connected to the heating medium flow path with respect to the heating medium flow path by the heating medium pressure increasing means. The heat pump device according to claim 2, further comprising a heat medium flow path switching unit that switches the heat medium flow path so as to be located on the downstream side and upstream of the heated medium temperature raising unit.   The heat pump device according to claim 3, wherein the stored predetermined working medium is vaporized or decomposed and adsorbed to the predetermined adsorbent.   The heat pump device according to claim 7, wherein the vaporization or decomposition of the predetermined working medium is performed by using heating and / or pressure reduction. At least a part of the heated medium to be heated is accumulated,
The heat pump device according to claim 8, wherein the heating is performed by using the heated medium that has been heated and accumulated.   The heat pump device according to claim 2, wherein the predetermined reversible exothermic reaction is a hydrogenation reaction of a predetermined organic compound.   The said predetermined reversible exothermic reaction is a water adsorption reaction with any one of a predetermined carbon-based porous material, a predetermined inorganic-based porous material, and a predetermined water-absorbing polymer material. Heat pump equipment.   The heat pump device according to claim 2, wherein the predetermined reversible exothermic reaction is a hydrogenation reaction of a predetermined hydrogen storage material having a hydrogen storage capacity.   The heat pump device according to claim 2, wherein the predetermined reversible exothermic reaction is an ammoniating reaction of a predetermined inorganic salt. A predetermined heat receiving fin is provided on an outer surface of the heat medium flow path and / or the heated medium flow path,
The heat pump device according to claim 3, wherein the predetermined adsorbent is filled between the provided predetermined heat receiving fins.   The heat pump device according to claim 14, wherein a predetermined material having a higher thermal conductivity than that of the predetermined adsorbent is mixed into the predetermined adsorbent that is filled. Heat medium distribution step of flowing a predetermined heat medium using a predetermined heat medium flow path,
The heat medium to be circulated, a heat medium pressurizing and heating step of raising the temperature using pressurizing,
A heated medium flowing step of flowing a predetermined heated medium using a predetermined heated medium flow path,
The heated medium to be circulated, a heated medium heating step of increasing the temperature using heat exchange with the circulated heated medium,
A chemical reaction temperature raising step of raising the temperature of the circulated heat medium and / or the circulated medium to be heated by utilizing a predetermined chemical reaction.

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