JP6331548B2 - Adsorption heat pump - Google Patents

Description

  The present invention relates to an adsorption heat pump.

  Conventionally, a heat cycle system using an adsorption heat pump has been used in various fields, and is applied to an air conditioner or a water heater.

  The adsorption type heat pumps proposed so far are generally provided with a pair of adsorbers, a condenser and an evaporator (see, for example, Patent Document 1), and heat increase to increase COP (Coefficient Of Performance). As an example using the mode, an adsorption heat pump type water heater has been proposed (for example, see Non-Patent Document 1). In this system, switching of the operation mode and hot water supply operation are usually performed by switching the flow path using a three-way valve. Specifically, the operation of adsorbing the fluid on one side of the adsorber and desorbing the other (that is, regenerating the adsorber) and the operation of desorbing the fluid from the one adsorber and adsorbing the fluid to the other are switched. Alternately.

  In addition, an adsorption refrigerator that operates in the same manner as described above is also known (see, for example, Non-Patent Document 2).

  In recent years, attention has been paid to the preservation of the global environment, and considering that the movement of energy saving has been activated, further improvement in thermal efficiency is required for apparatuses using adsorption heat pumps.

JP 2006-125713 A

"24th Technology Development and Survey Project Results Presentation [P5.1.2] Development of high-efficiency kerosene combustion equipment using adsorption heat pump", [online], June 2010, Petroleum Energy Technology Center, [Search on November 22, 2012], Internet <URL: http://www.pecj.or.jp/japanese/report/2010report/24data/p512.pdf> "Adsorption refrigeration machine of union industry", [online], Union Sangyo Co., Ltd. [searched on November 22, 2012], Internet <URL: http: //www.union-reitouki. com / chiller / principle.html>

When performing a heat increase cycle in a general adsorption heat pump that has been proposed so far, the increased energy is the heat of condensation (Q ¹ ), heat of adsorption (Q ² ), and sensible heat (Q ³ ) of the adsorber. ) can be defined by the sum of the sensible heat in the adsorber represented by Q ³ are a reality is has come to be discarded without being recovered. However, in a system or the like in which a plurality of adsorbers are provided, the amount of heat of sensible heat cannot be ignored, which contributes to an increase in heat loss of the entire system.

However, a mechanism for reducing sensible heat loss that occurs in the adsorber when switching between adsorption and desorption of adsorbate when trying to recover all of the thermal energy (= Q ¹ + Q ² + Q ³ ) generated in the system And the entire system becomes complicated. For example, in a system provided with a plurality of valves and flow paths, the flow paths need to be switched in accordance with the switching of the adsorption / desorption, and the control of the valves is therefore complicated.

  On the other hand, a system using fossil fuel that obtains thermal energy by combustion has a significantly large thermal energy loss (sensible heat loss), so the COP value is generally low, whereas a heat pump has a relatively high COP. Is expected to be obtained. However, in a system that uses heat through an adsorption / desorption process using a heat medium, when switching between a high-temperature fluid (for example, 80 ° C.) and a low-temperature fluid (for example, 30 ° C.) as the heat medium, it remains in the adsorber. Since the existing heating media are mixed with each other, sensible heat loss of the heating media is inevitably caused. Preventing such heat loss is not easy in terms of system configuration.

  The present invention has been made in view of the above, and it is an object of the present invention to provide an adsorption heat pump with a reduced number of valves, a small heat energy loss (sensible heat loss), and a high heat increase effect. The goal is to achieve this.

  The present invention has been achieved based on the following findings. That is, in the adsorption heat pump, in order to enhance the heat energy increasing effect, sensible heat loss due to heat exchange fluid (so-called heat medium) cannot be ignored. Instead of transferring by latent heat using a substance having a large latent heat of evaporation, switching of the heat medium and its flow path becomes unnecessary, and waste of sensible heat generated by mixing heat mediums having different temperatures can be reduced. It is knowledge of.

  In order to achieve the above object, an adsorption heat pump according to a first aspect of the present invention includes an evaporator for evaporating a fluid supplied from a storage unit, and the fluid is supplied from the evaporator to hold and hold the fluid. A state in which the first fluid holding unit for detaching the fluid and the second fluid holding unit for supplying the fluid from the storage unit and holding the fluid and detaching the held fluid are thermally connected And the first fluid holding part has an adsorber having an adsorbent that releases reaction heat when holding the supplied fluid, and the fluid is supplied from the evaporator, and the fluid is fixed. A heat storage reaction part having a chemical heat storage material that releases reaction heat equal to or greater than the latent heat of vaporization of the fluid and stores heat when the fluid is desorbed, and fluid vaporization to supply the fluid and vaporize the fluid Parts in a thermally connected state, The heat storage reactor that heats the adsorbent by supplying the converted fluid to the adsorber, and the fluid can flow through the first fluid holding unit and the second fluid holding unit of the adsorber. A condenser that condenses the fluid discharged from the first fluid holding part and the second fluid holding part and supplies the condensed fluid to the storage part, and an evaporator A supply destination switching three-way valve for switching the fluid supply destination from one of the adsorber and the heat storage reactor to the other, and a pump for supplying the fluid from the storage to the evaporator A valve for stopping the supply of the fluid from the storage unit to the evaporator, and the pump and the valve to control the supply amount and supply stop of the fluid from the storage unit to the evaporator Control the evaporator It is configured by including a control unit for controlling the supply destination switching three-way valve to switch the supply destination of fluid.

  An adsorption heat pump according to a second aspect of the invention includes an evaporator for evaporating the fluid supplied from the storage unit, and the fluid supplied from the evaporator to hold the fluid and desorb the held fluid. A first fluid holding unit, and a second fluid holding unit that is supplied with the fluid from the storage unit and that holds the fluid and desorbs the held fluid in a thermally connected state. An adsorber having an adsorbent that releases reaction heat when holding the supplied fluid, and the fluid is supplied from the evaporator and the fluid is fixed when the fluid is fixed. A heat storage reaction part having a chemical heat storage material that releases reaction heat equal to or greater than the latent heat of vaporization and stores heat when the fluid desorbs, and a fluid vaporization part that is supplied with the fluid and vaporizes the fluid is thermally connected The vaporized fluid is A heat storage reactor that heats at least the adsorbent by supplying it to the adsorber, and the first fluid holding unit and the second fluid holding unit of the adsorber are communicated with each other so as to allow fluid to flow, A condenser that condenses the fluid discharged from the first fluid holding part and the second fluid holding part and supplies the condensed fluid to the storage part; and a destination that communicates with the condenser. A communication destination switching three-way valve for switching from one of the first fluid holding unit and the second fluid holding unit of the adsorber to the other and a destination to be communicated with the condenser. And a control unit for controlling the communication destination switching three-way valve.

  In the first and second inventions, the amount of heat exchange fluid (so-called heat medium) is minimized by using latent heat heating (for example, steam heating) and latent heat cooling, and the adsorbate in the adsorber. This reduces the sensible heat loss that is likely to occur in the adsorber during the adsorption or desorption of the working fluid (for example, ammonia or water), and collects and recovers the used thermal energy in one place (condenser). Thereby, a sensible heat loss can be prevented and COP can be improved effectively.

  In the first invention and the second invention, the fluid is supplied to the adsorber from the evaporator or the heat storage reactor, and the supplied fluid is repeatedly held and desorbed to use the heat energy. Specifically, in an adsorption heat pump that temporarily holds a fluid that generates latent heat of evaporation supplied from an evaporator or a heat storage reactor, and desorbs the retained fluid so as to use heat energy. A first fluid holding unit that is supplied with the fluid, holds the fluid, and desorbs the held fluid; and a second that is supplied with the fluid, holds the fluid, and desorbs the held fluid By having the fluid holding part in a thermally connected state, heat exchange is performed between the first fluid holding part and the second fluid holding part. The heat used between the two fluid holding parts is recovered by a condenser. That is, when the fluid heated by the heat storage reactor and vaporized (heated fluid) is sent to the second fluid holding unit, the fluid is condensed in the second fluid holding unit, for example, and changed into a liquid phase. While being held, heat (for example, heat of condensation etc.) is released. The first fluid holding unit is heated by the heat of the fluid and the heat of condensation, the fluid held by the first fluid holding unit is desorbed, and the desorbed fluid is sent to the condenser. At this time, the fluid increases in the second fluid holding portion, and the fluid held in the first fluid holding portion gradually decreases. When the fluid held in the first fluid holding portion is reduced in this way, a gaseous fluid is subsequently supplied from the evaporator. When the gaseous fluid is sent to the first fluid holding unit, the fluid is held (for example, adsorbed and held by the adsorbent) in the first fluid holding unit and releases heat (for example, adsorption heat). The second fluid holding unit is heated by the released heat (for example, adsorption heat), the fluid held in the second fluid holding unit is desorbed, and the desorbed fluid is sent to the condenser. At this time, in the first fluid holding unit, the amount of fluid held (for example, the amount of adsorption in the adsorbent) increases, the liquid fluid in the second fluid holding unit vaporizes, and the amount of fluid held gradually decreases.

  In the first invention and the second invention, the fluid is supplied to the adsorber by the heat storage reactor. The heat storage reactor is responsible for the function of vaporizing the fluid by the reaction heat of the chemical heat storage material and the function of supplying a heated gas fluid to heat the adsorber. Specifically, when the fluid vaporized in the heat storage reactor as described above is sent to the second fluid holding unit, the fluid is supplied from the evaporator to the heat storage reaction unit of the heat storage reactor, and the chemical heat storage of the heat storage reaction unit Reaction heat generated when the fluid is immobilized by the following reaction (1), (2), (3) (when the reaction proceeds to the right in the following reversible reactions (1) to (3)) However, heat is exchanged with the fluid vaporization unit of the heat storage reactor, the fluid in the fluid vaporization unit is vaporized, and the gaseous fluid is sent to the second fluid holding unit of the adsorber. At this time, the fluid condensed in the condenser is supplied to the evaporator, and the condensed fluid is supplied to the heat storage reactor. When the amount of fluid fixed to the chemical heat storage material in the heat storage reaction unit reaches a predetermined threshold value, the chemical heat storage material is regenerated by being heated from the outside, for example.

CaO + H ₂ O Ｃａ Ca (OH) ₂ + Q ¹ [kJ] (1)
CaCl ₂ · 2NH ₃ + 6NH ₃ Ｃａ CaCl ₂ · 8NH ₃ + Q ² [kJ] (2)
MgCl ₂ · 2NH ₃ + 4NH ₃ ＭｇMgCl ₂ · 6NH ₃ + Q ³ [kJ] (3)

  By repeatedly holding and desorbing the fluid in the adsorber as described above, the recovered thermal energy is continuously performed in the condenser.

  In the adsorber, the first fluid holding part has an adsorbent that releases reaction heat when holding the supplied fluid. Thereby, in the 1st fluid holding | maintenance part, adsorption | suction heat is obtained by holding | maintaining by adsorption | suction of the fluid by an adsorbent.

  In the first invention, the control unit controls the pump and the valve so as to control the supply amount and supply stop of the fluid from the storage unit to the evaporator, and switches the supply destination of the fluid from the evaporator. The three-way valve for switching the supply destination is controlled. Thereby, the number of valves for switching the supply destination of the fluid from the evaporator can be reduced.

  In the second invention, the control unit controls the communication destination switching three-way valve so as to switch a destination to be communicated with the condenser. As a result, the number of valves that switch destinations connected to the condenser can be reduced.

  The adsorption heat pump according to the second invention is a supply destination switching three-way valve for switching the supply destination of the fluid from the evaporator from one of the adsorber and the heat storage reactor, A pump for supplying the fluid from the storage unit to the evaporator; and a valve for stopping the supply of the fluid from the storage unit to the evaporator; and the control unit includes the condenser The communication destination switching three-way valve is controlled so as to switch the communication destination, and the pump and the valve are controlled so as to control the supply amount and supply stop of the fluid from the storage unit to the evaporator. The supply destination switching three-way valve can be controlled to switch the supply destination of the fluid from the evaporator. Thereby, the number of valves for switching the supply destination of the fluid from the evaporator can be reduced.

  The supply destination switching three-way valve is configured so that the supply amount of the fluid to the side different from the supply destination of the fluid from the switched evaporator is configured to be within a predetermined allowable leakage amount. A mechanism can be provided. This improves the durability of the supply destination switching three-way valve.

  The communication destination switching three-way valve is configured so that the fluid supply amount from the side different from the fluid supply source to the switched condenser is configured to be within a predetermined allowable leakage amount. A mechanism can be provided. This improves the durability of the communication destination switching three-way valve.

  The adsorption heat pump according to the first and second aspects of the invention includes a second pump for supplying the fluid from the storage unit to the reactor, and the supply of the fluid from the storage unit to the reactor is stopped. And the control unit controls the second pump and the second valve to control the supply amount and supply stop of the vaporized fluid from the reactor to the adsorber. Can be controlled. Thereby, the valve | bulb of the distribution piping which connects the fluid vaporization part of a thermal storage reactor and the 2nd fluid holding | maintenance part of an adsorber can be abbreviate | omitted, and the number of valves can further be reduced.

  The adsorption heat pump including the communication destination switching three-way valve and the supply destination switching three-way valve switches a destination communicated with the condenser to the first fluid holding unit of the adsorption device, and the evaporation The communication destination switching three-way valve and the supply destination switching three-way valve are driven so as to switch the supply destination of the fluid from the reactor to the heat storage reactor, and the destination connected to the condenser is connected to the adsorber. Driving to drive the communication destination switching three-way valve and the supply destination switching three-way valve so as to switch to the second fluid holding unit and to switch the supply destination of the fluid from the evaporator to the adsorber The controller may further control the drive unit so as to switch a destination of communication with the condenser and a supply destination of fluid from the evaporator. As a result, the number of drive units that drive the communication destination switching three-way valve and the supply destination switching three-way valve can be reduced.

  Further, the communication destination switching three-way valve and the supply destination switching three-way valve are constituted by a rotary switching valve for switching a destination communicated with the condenser and a fluid supply destination from the evaporator. be able to. Thereby, the number of valves can be further reduced.

  The supply destination switching three-way valve switches the supply destination of the fluid from the evaporator to either the adsorber or the heat storage reactor, or both the adsorber and the heat storage reactor. The controller may supply the fluid from the evaporator to the adsorber and the thermal storage reactor when starting or restarting the adsorption heat pump. It is possible to control the three-way valve for switching ahead. As a result, when the adsorption heat pump is started or restarted, the cold output can be temporarily increased, and the start response time can be shortened.

  In the invention including the drive unit for driving the communication destination switching three-way valve and the supply destination switching three-way valve, the supply destination switching three-way valve is configured to supply a fluid supply destination from the evaporator to the adsorber. And either one of the heat storage reactors or both the adsorber and the heat storage reactor, and the drive unit is connected to the condenser in the first position of the adsorber. The communication destination switching three-way valve and the supply destination switching three-way valve so as to switch to two fluid holding units and supply the fluid from the evaporator to the adsorber and the heat storage reactor. Driving and switching the communication destination with the condenser to the first fluid holding portion of the adsorber, and switching the fluid supply destination from the evaporator to the heat storage reactor. 3-way valve for switching the tip and the above Drives the destination switching three-way valve, switches the destination communicating with the condenser to the second fluid holding portion of the adsorber, and supplies the fluid supply destination from the evaporator to the adsorber The controller further includes a drive unit that drives the communication destination switching three-way valve and the supply destination switching three-way valve so that the adsorption destination heat pump is started or restarted. The drive unit may be controlled so as to supply fluid from the evaporator to the reactor and the heat storage reactor. As a result, when the adsorption heat pump is started or restarted, the cold output can be temporarily increased, and the start response time can be shortened.

  In the adsorption heat pump, at least one of the first fluid and the second fluid held or desorbed (preferably adsorbed or desorbed) by the fluid holding unit is preferably ammonia or water. Ammonia and water vapor are substances with a large latent heat of vaporization, so the amount of heat generated when held or desorbed by the fluid holding part is large, and a large amount of heat can be recovered in a single process of holding or desorbing. .

  The adsorbent disposed in the adsorber of the adsorption heat pump is preferably selected from the group consisting of activated carbon, mesoporous silica, zeolite, silica gel, and clay mineral. In particular, activated carbon, mesoporous silica, zeolite, silica gel, and clay minerals, which are physical adsorbents, desorb or adsorb 1 mol of a substance when the substance (for example, ammonia or water vapor) is desorbed or resorbed. The amount of heat required for the process is smaller than that of the chemical adsorbent, and the material can be exchanged with a small amount of heat.

  The heat storage reactor of the adsorption heat pump of the present invention is preferably an embodiment configured using a compound selected from metal oxides and metal chlorides as at least one kind of chemical heat storage material, and alkali metal hydroxides and chlorides. More preferred is an embodiment having a compound selected from the group consisting of a metal oxide, an alkaline earth metal hydroxide and chloride, and a transition metal hydroxide and chloride.

  Metal oxides and metal chlorides are suitable in that a high heat storage density (kJ / kg) is obtained, and are suitable for effective use of heat. Alkali metal hydroxides and chlorides, alkaline earth metal hydroxides and chlorides, and transition metal hydroxides and chlorides are useful in terms of further increasing the efficiency of producing hot and cold heat.

  The heat storage density indicates the amount of heat (kJ) stored per kg of hydroxide or metal chloride due to desorption of a heat medium such as water or ammonia.

  In the present invention, when water is used as a fluid and heat is stored and released by transferring water, the chemical heat storage material is selected from calcium oxide (CaO), magnesium oxide (MgO), and barium oxide (BaO). Those are preferred.

In the present invention, when ammonia is used as a fluid and heat is stored and released by transferring ammonia, the chemical heat storage materials include lithium chloride (LiCl), magnesium chloride (MgCl ₂ ), calcium chloride (CaCl ₂ ), and strontium chloride. Those selected from (SrCl ₂ ), barium chloride (BaCl ₂ ), manganese chloride (MnCl ₂ ), cobalt chloride (CoCl ₂ ), and nickel chloride (NiCl ₂ ) are preferred.

  ADVANTAGE OF THE INVENTION According to this invention, the number of valves is reduced, a thermal energy loss (sensible heat loss) is small, and the adsorption type heat pump with a high heat increase effect is provided.

It is the schematic which shows the structural example of the adsorption heat pump of 1st Embodiment of this invention. It is a perspective view which shows the specific structural example of an adsorption device. It is a perspective view which shows the specific aspect of the adsorbent (or chemical heat storage material) with which an adsorber (or heat storage reactor) is equipped. It is a perspective view which shows the specific structural example of a thermal storage reactor. It is a graph which shows the change of a vapor | steam amount and a water retention amount. It is a figure for demonstrating the production | generation and stop control of a vapor | steam. (A) Side view of the three-way steam valve, (B) Top view of the three-way steam valve, (C) Diagram showing switching to connect with the heat storage reactor, and (D) To connect with the adsorber It is a figure which shows a mode that it switches. It is a figure which shows the distribution | circulation form at the time of using heat | fever in adsorption machine reproduction | regeneration mode. It is a figure which shows the distribution | circulation form at the time of using heat | fever in adsorption machine adsorption mode. It is a flowchart which shows the heat increase cycle control routine of 1st Embodiment of this invention. It is the schematic which shows the structural example of the adsorption type heat pump of 2nd Embodiment of this invention. It is a figure for demonstrating the automatic stop of condensed steam. It is a flowchart which shows the heat increase cycle control routine of 2nd Embodiment of this invention. It is the schematic which shows the structural example of the adsorption heat pump of 3rd Embodiment of this invention. It is a flowchart which shows the heat increase cycle control routine of 3rd Embodiment of this invention. It is side sectional drawing of a three-way steam valve. (A) The bottom view of a seal part and (B) The side sectional view of a seal part. It is a graph which shows a clearance flow rate and a pressure difference before and behind a valve. It is the schematic which shows the structural example of the adsorption heat pump of 5th Embodiment of this invention. It is a graph which shows the change of the amount of supplied water and the amount of transport steam. It is a figure for demonstrating the production | generation and stop control of transport steam. It is a flowchart which shows the heat increase cycle control routine of 5th Embodiment of this invention. (A) The figure which shows a mode that the three-way steam valve which supplied the drive part was switched to the position A, (B) The figure which shows a mode that the three-way steam valve which supplied the drive part was switched to the position B, and ( C) It is a figure which shows the other example of the three-way steam valve which supplied the drive part. It is a flowchart which shows the heat increase cycle control routine of 6th Embodiment of this invention. It is a side view of a rotary switching steam valve. (A) Top view of rotary switching steam valve, (B) Bottom view of rotating part, and (C) Top view of fixed piping part. (A) The figure which shows a mode that the rotary switching steam valve was switched to the position A, and (B) The figure which showed a mode that the rotary switching steam valve was switched to the position B. (A) The figure which shows a mode that the three-way steam valve which supplied the drive part was switched to the position A, (B) The figure which shows the mode which switched the three-way steam valve which supplied the drive part to the position C, and ( C) It is a figure which shows a mode that the three-way steam valve which supplied the drive part was switched to the position B. FIG. It is a flowchart which shows the heat increase cycle control routine of 8th Embodiment of this invention.

  Hereinafter, an embodiment of an adsorption heat pump of the present invention will be specifically described with reference to the drawings. However, the present invention is not limited to the embodiments shown below.

(First embodiment)
A first embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. In this embodiment, silica gel is used as the adsorbent for the adsorber, calcium oxide (CaO) is used as the chemical heat storage material for the heat storage reactor, and two fluids (heat medium and working fluid) supplied to the adsorber and the heat storage reactor are used. As an example, an adsorption heat pump (hereinafter also simply referred to as “heat pump”) using water vapor (water) will be described in detail.

  As shown in FIG. 1, the heat pump 100 of the present embodiment includes an evaporator 10, an adsorber 20 having an adsorbent, and a chemical heat storage material, and a heat storage reaction that functions as a heater for steam heating the adsorber. The condenser 30, the condenser 40 that condenses the fluid (water vapor) discharged from the adsorber 20, and the water tank 41 that stores the water supplied from the condenser 40.

  The water vapor is meant to include water in a gaseous state and water condensed into fine water droplets in the air.

  The heat pump 100 of the present embodiment has the following two features.

(1) A heat medium for exchanging heat with an adsorber or the like and a working fluid that is an adsorbate or the like adsorbed on the adsorber or the heat storage reactor are the same fluid (water vapor).
(2) Condensation heat transfer and evaporation heat transfer are used for heating and cooling the adsorber.

  The evaporator 10 is connected to the adsorber 20 and the heat storage reactor 30 so as to be capable of supplying water vapor, which is a fluid generated by vaporizing water. Specifically, the other end of a circulation pipe 11 having one end connected to the three-way steam valve SV1 is connected to the evaporator 10, and the evaporator 10 is connected to the circulation pipe 11 and the three-way steam valve SV1 at one end. Is connected to the adsorber 20 via a flow pipe 12 connected to the heat storage reactor 30 and is connected to the heat storage reactor 30 via a flow pipe 11 having one end connected to the flow pipe 11 and the three-way steam valve SV1.

  The evaporator 10 is used when the adsorption amount of water in the chemical heat storage material arranged in the heat storage reaction part of the heat storage reactor 30 does not reach the saturation amount or in the fluid holding chamber 22 provided in the adsorber as described later. When the amount of water vapor adsorbed on the adsorbent decreases, it is preferable that the vaporization of water in the evaporator proceeds and the water vapor is supplied to the flow pipes 11 and 12 as water vapor. Moreover, it is suitable to have the function which heats water with the heat from the outside and can discharge | emit it to the distribution piping 11 as water vapor | steam.

  Since the evaporator 10 takes away the heat of vaporization by vaporizing water as described above, the evaporator 10 generates cold heat corresponding to the heat of vaporization of water vapor supplied to the adsorber 20. Therefore, by effectively connecting the refrigeration equipment 60 such as an air conditioner outdoor unit, which is an example of the refrigeration demand, through the heat exchange pipe 61, for example, it is possible to effectively use the refrigeration.

  The heat exchange pipe is composed of an endless pipe and a heat exchange fluid flowing through the pipe. A heat exchange fluid (for example, water or a mixed solvent of water and a water-soluble solvent) circulates and circulates in the pipe by a circulation pump (not shown) attached to the pipe, thereby supplying cold heat to the cooling device 50. be able to.

  The adsorber 20 is supplied with water vapor from the evaporator 10, adsorbs and holds the water vapor, desorbs and releases the adsorbed water vapor, and a fluid holding chamber 22 that is a first fluid holding unit, and a heat storage reactor 30. Is provided with a fluid holding chamber 24 as a second fluid holding unit that condenses and holds the water vapor, and desorbs and releases the condensed water vapor again as water vapor.

  The adsorber 20 is provided with a plurality of fluid holding chambers 22 and fluid holding chambers 24, and each of the fluid holding chambers 22 and the fluid holding chambers 24 is disposed in the housing of the adsorber 20 as shown in FIG. 2. Alternatingly arranged, adjacent chambers are thermally connected to each other. In other words, when a temperature change occurs due to heat dissipation or heat absorption in the fluid holding chamber 22, the fluid holding chamber 22 exchanges heat with the fluid holding chamber 24 so that the fluid holding chamber 24 is heated or cooled. It has become.

  The fluid holding chamber 22 is connected to the other end of the circulation pipe 12, and water vapor is supplied from the evaporator 10. As shown in FIG. 2, the fluid holding chamber 22 is provided with plate-like adsorbents 26 on the top and bottom surfaces of each chamber so that the supplied water vapor can be adsorbed and held. Yes.

  The adsorbent 26 is formed into a plate shape using silica gel (physical adsorbent), and is composed of silica gel plates 26A and 26B as shown in FIG. The surface S of the silica gel plates 26A and 26B facing the fluid holding chamber 24, that is, the surface in contact with the top surface and the bottom surface of each chamber is a heat transfer surface, and heat exchange can be performed with the adjacent chambers through this surface.

  For example, when water vapor is condensed in the fluid holding chamber 24 and condensation heat is generated, heat exchange is performed on the heat transfer surfaces S of the silica gel plates 26A and 26B, and when the silica gel plates 26A and 26B (adsorbent) are heated, The adsorbed water vapor is desorbed, and the amount of heat provided during heating can be supplied to the condenser 40.

By using an adsorbent, the amount of heat required for adsorption (immobilization) and desorption of water vapor can be kept small, and the attachment and detachment of water vapor can be easily performed even with low energy. In this embodiment, water vapor is used as the fluid, but in addition to water vapor, a substance having a large latent heat of vaporization such as ammonia can be suitably used. For example, when ammonia is used, the amount of heat required for adsorption and desorption of 1 mol of ammonia can be suppressed to 20 to 30 kJ / mol. As comparison value, the amount of heat when using the chemical heat storage material (e.g. MgCl _2, CaCl _2, etc.) is 40~60kJ / mol.

  As the adsorbent, a porous material can be used like the silica gel used in the present embodiment. The porous body is preferably a porous body having pores with pore diameters of 10 nm or less from the viewpoint of further improving the reactivity of immobilization and desorption of a fluid such as water vapor by adsorption (preferably physical adsorption). The lower limit of the pore diameter is preferably 0.5 nm from the viewpoint of production suitability and the like. As the porous body, from the same viewpoint as described above, a porous body which is a primary particle aggregate obtained by aggregating primary particles having an average primary particle diameter of 50 μm or less is preferable. The lower limit of the average primary particle diameter is preferably 1 μm from the viewpoint of production suitability and the like.

  Examples of the adsorbent include activated carbon, mesoporous silica, zeolite, clay mineral and the like in addition to the silica gel used in the present embodiment. The clay mineral may be an uncrosslinked clay mineral or a crosslinked clay mineral (crosslinked clay mineral). Examples of clay minerals include sepiolite, smectite clay (saponite, montmorillonite, hectorite, etc.), 4-silicon mica, mica, vermiculite, etc. Among them, sepiolite is preferable.

As the silica gel, the specific surface area by BET method of 100 m ² / g or more 1500 m ² / g or less (more preferably, 300 meters ² / g or more 1000 m ² / g or less) of silica gel is preferably.

As the activated carbon, activated carbon having a specific surface area by a BET method of 800 m ² / g or more and 4000 m ² / g or less (more preferably 1000 m ² / g or more and 2000 m ² / g or less) is preferable.

As the mesoporous silica, mesoporous silica having a specific surface area by a BET method of 500 m ² / g or more and 1500 m ² / g or less (more preferably 700 m ² / g or more and 1300 m ² / g or less) is preferable.

As the zeolite, a zeolite having a specific surface area by the BET method of 50 m ² / g or more and 1000 m ² / g or less (more preferably 100 m ² / g or more and 1000 m ² / g or less) is preferable.

  In the present invention, the type of the adsorbent (preferably a porous body) can be appropriately selected according to the pressure and temperature of the fluid. From the viewpoint of further improving the reactivity of immobilization and desorption of the fluid (water in this embodiment) by adsorption, an embodiment including at least silica gel is preferable. Further, from the viewpoint of further improving the reactivity of immobilization and desorption of ammonia by adsorption, an embodiment including at least activated carbon is preferable.

  In the case of a structure that absorbs and generates heat by exchanging fluid using an adsorbent (preferably a physical adsorbent), the content ratio of the adsorbent in the total amount of adsorbent increases the reactivity of fluid immobilization and desorption. From the viewpoint of maintaining, 80% by volume or more is preferable, and 90% by volume or more is more preferable.

  When the adsorbent is used as a molded body, a binder may be contained together with the adsorbent. By containing the binder, the shape of the molded body is more easily maintained, so that the heat medium fixation and desorption reactivity by adsorption is further improved. As the binder, a water-soluble binder is preferable. Examples of the water-soluble binder include polyvinyl alcohol and trimethyl cellulose.

  Moreover, in addition to the adsorbent and the binder, other components may be contained as necessary. Examples of other components include thermally conductive inorganic materials such as carbon fibers and metal fibers.

  When molding using an adsorbent and a binder, the content ratio of the binder is preferably 5% by volume or more and more preferably 10% by volume or more from the viewpoint of more effectively maintaining the shape of the molded body. The molding method is not particularly limited, and examples thereof include a method in which an adsorbent (and other components such as a binder as necessary) is molded by known molding means such as pressure molding and extrusion molding. The pressure at the time of shaping | molding can be 20-100 Mpa, for example, and 20-40 Mpa is preferable.

  One end of a circulation pipe 38 is connected to the fluid holding chamber 24, and heat is supplied together with water vapor from a heat storage reactor 30 described later. When heat is supplied, heat is exchanged with the fluid holding chamber 22, and the water vapor is condensed in the fluid holding chamber 24 to generate water. The heat of condensation at this time is also exchanged with the fluid holding chamber 22. Thereby, in the fluid holding chamber 22, the adsorbent is heated, and the water vapor adsorbed on the adsorbent is desorbed.

  Grooves and wicks (grooves) are provided on the top and bottom surfaces of the fluid holding chamber 24 where heat exchange can be performed with the fluid holding chamber 22. The surface having the groove structure or the wick structure is provided with a concave groove, and the liquid (water in this embodiment) can be held by the surface tension in the groove portion to form a liquid film. Thus, water can be uniformly present on the surface where heat exchange is performed, and the vaporization distribution in the surface where heat exchange is performed can be made uniform.

  The groove structure refers to a structure in which grooves or depressions are formed, and is formed on the inner wall of the heat exchanger. The wick structure refers to a structure formed in a mesh shape or the like having a netting phenomenon, and is also formed on the inner wall. These groove portions are formed by pressing, cutting or the like on the wall surface.

  In this embodiment, the fluid holding chamber 24 is only provided with a groove structure and no adsorbent is provided. However, the fluid holding chamber 24 has a structure in which a porous layer is provided on the top surface or the bottom surface of the fluid holding chamber 24 facing the fluid holding chamber 22. May be.

  As the porous layer, in addition to using the above-mentioned porous body, it is sufficient that the porous structure is provided by using a material capable of forming a porous structure. As a material capable of forming a porous structure, silica gel, zeolite, silica, activated carbon, clay mineral, and the like can be used. An adsorbent may be disposed as the porous layer, and the same adsorbent that can be used in the fluid holding chamber 22 can be used. Details of silica gel, zeolite, silica, activated carbon, and clay mineral are as described above.

  The heat storage reactor 30 is supplied with water vapor from the evaporator 10, releases heat of reaction when the water vapor is fixed by a hydration reaction, and has a chemical heat storage material that stores heat when the water vapor is desorbed. And a vaporization chamber 34 that is a fluid vaporization unit that is supplied with water from a water tank 41 and vaporizes water with heat from the reaction chamber 32.

  The heat storage reactor 30 is provided with a plurality of reaction chambers 32 and vaporization chambers 34, and each of the reaction chambers 32 and the vaporization chambers 34 is alternately arranged in the housing of the heat storage reactor 30 as shown in FIG. 4. Arranged and adjacent chambers are thermally connected to each other. In other words, when a temperature change occurs due to heat dissipation or heat absorption in the reaction chamber 32, the reaction chamber 32 exchanges heat with the vaporization chamber 34, and the vaporization chamber 34 is heated or cooled.

  The other end of the distribution pipe 14 is connected to the reaction chamber 32, and water vapor is supplied from the evaporator 10. As shown in FIG. 4, the reaction chamber 32 is provided with plate-like heat storage materials 36 on the top and bottom surfaces of each chamber so that the supplied water vapor reacts with the heat storage material and is held. It has become.

  The plate-shaped heat storage material 36 is formed into a plate shape by pressing a powder of calcium oxide (CaO) that is a chemical heat storage material. Similar to the adsorbent 26, the heat storage material 36 is composed of CaO plate-like bodies (chemical heat storage material structures) 36A and 36B as shown in FIG. The surface S of the CaO plate-like bodies 36A and 36B facing the reaction chamber 32, that is, the surface in contact with the top surface and the bottom surface of each chamber is a heat transfer surface, and heat exchange can be performed with the adjacent chambers through this surface.

  Calcium oxide, which is one of chemical heat storage materials, causes the following reaction to generate reaction heat. A chemical heat storage material is a substance that can absorb and release heat using a chemical reaction. For example, absorption and release of heat by CaO has a configuration in which heat is released (heat generation) by hydration and heat is stored (heat absorption) with dehydration. That is, CaO can reversibly repeat heat storage and heat dissipation by the reactions shown below.

CaO + H ₂ O Ｃａ Ca (OH) ₂ (a)

  Moreover, it is as follows when the heat storage amount and the calorific value Q are shown together.

CaO + H ₂ O → Ca (OH) ₂ + Q (b)
Ca (OH) ₂ + Q → CaO + H ₂ O (c)

  For example, when water vapor is condensed in the vaporizing chamber 34 and condensation heat is generated, heat exchange is performed on the heat transfer surfaces S of the CaO plate-like bodies 36A and 36B of the heat storage material 36, and the CaO plate-like bodies 36A and 36B are heated. Then, the reaction of the above formula (c) proceeds and dehydrates, and steam corresponding to the amount of heat provided at the time of heating can be supplied to the adsorber 20.

  By using a chemical heat storage material, the amount of heat required for immobilization and desorption of water vapor can be kept small, and the water vapor can be attached and detached easily even with low energy.

Examples of the chemical heat storage material include, in addition to CaO used in this embodiment, inorganic oxides of alkaline earth metals such as magnesium oxide (MgO) and barium oxide (BaO), and alkalis such as lithium oxide. Examples thereof include inorganic oxides of metals, aluminum oxide (Al ₂ O ₃ ), and the like. A metal oxide may be used individually by 1 type, and may use 2 or more types together.

  In the present embodiment, water (steam) is used as the fluid, but a substance having a large latent heat of evaporation such as ammonia can be suitably used in addition to water. When ammonia is used as the fluid, a metal chloride different from the above is preferably used as the chemical heat storage material. When metal chloride is used, the heat storage density can be further increased.

As the metal chloride, a compound that generates an exothermic reaction upon adsorption of ammonia is applicable. Metal chloride releases heat when ammonia is immobilized (adsorbed) on the heat storage material, and stores heat when ammonia is desorbed from the heat storage material. For example, in the case of magnesium chloride (MgCl ₂ ), in the following reversible reaction, heat can be dissipated when the reaction proceeds in the right direction, and heat can be stored during the reaction that proceeds in the left direction.

_{MgCl 2 · 2NH 3 + 4NH 3} ⇔ MgCl 2 · 6NH 3 + Q 1 [kJ]

As the metal chloride, an alkali metal chloride, an alkaline earth metal chloride, a transition metal chloride, and the like are preferable, and lithium chloride (LiCl), magnesium chloride (MgCl ₂ ), calcium chloride (CaCl ₂ ). ), Strontium chloride (SrCl ₂ ), barium chloride (BaCl ₂ ), manganese chloride (MnCl ₂ ), cobalt chloride (CoCl ₂ ), and nickel chloride (NiCl ₂ ). A metal chloride may be used alone or in combination of two or more.

  The kind of metal chloride can be appropriately selected according to the ammonia pressure and temperature. Therefore, the range in which the ammonia pressure and temperature can be selected in accordance with the heat utilization target is expanded.

  Among the above, in a system using water as a fluid, a hydration reactive heat storage material that dissipates heat with a hydration reaction and absorbs heat with a dehydration reaction is preferable, and calcium oxide (CaO) is particularly preferable.

In addition, in a system using ammonia as a fluid, operation under freezing is possible. In this case, when the ammonia adsorption temperature is low, BaCl ₂ , CaCl ₂ , and SrCl ₂ can be selected. When the ammonia adsorption temperature is relatively high, MgCl ₂ , MnCl ₂ , CoCl ₂ , and NiCl ₂ can be selected. You can choose.

  The chemical heat storage material can be provided as a molded body obtained by press molding, for example, a granular material such as CaO. The molding method is not particularly limited. For example, a heat storage material (or a slurry containing a heat storage material) containing a chemical heat storage material and other components such as a binder as necessary is formed by a known method such as pressure molding or extrusion molding. A molding method can be applied. The pressure at the time of shaping | molding can be 20-100 Mpa, for example, and 20-40 Mpa is preferable.

  The vaporization chamber 34 is connected to the other end of the circulation pipe 38 connected to the fluid holding chamber 24 of the adsorber and one end of the circulation pipe 42. In the vaporizing chamber 34, when condensed water exists in the room, the condensed water exchanges heat with the reaction chamber 32, and when water is supplied from a condenser 40 described later, the supplied water is used for the reaction chamber. By exchanging heat with 32, water vapor is generated.

  Grooves and wicks (grooves) are provided on the top and bottom surfaces of the vaporization chamber 34 where heat exchange can be performed with the reaction chamber 32. The surface having the groove structure or the wick structure is provided with a concave groove, and the liquid (water in this embodiment) can be held by the surface tension in the groove portion to form a liquid film. Thus, water can be uniformly present on the surface where heat exchange is performed, and the vaporization distribution in the surface where heat exchange is performed can be made uniform.

  The groove structure and the wick structure are as described above.

  In the present embodiment, the vaporizing chamber 34 is merely provided with a groove structure and no adsorbent is provided. However, a structure in which a porous layer is provided on the top or bottom of the vaporizing chamber 34 facing the reaction chamber 32 may be used. . As the porous layer, in addition to using the above-mentioned porous body, it is sufficient that the porous structure is provided by using a material capable of forming a porous structure. Details of the material capable of forming the porous structure are as described above.

  It is preferable that the heat storage reactor 30 further includes a heater that can heat the chemical heat storage material from the outside. When the hydration reaction becomes difficult to proceed with water vapor supplied from the evaporator 10, the chemical heat storage material can be regenerated by heating with a heater and proceeding, for example, a dehydration reaction (desorption of water). Water vapor generated at the time of regeneration can be returned to the evaporator 10 through the distribution pipes 11 and 14 and reused.

  The condenser 40 is connected so as to be able to supply water vapor from the adsorber 20, and condenses the water vapor supplied from the adsorber 20. Specifically, one end of a distribution pipe 28 having a valve SV01 and one end of a distribution pipe 29 having a valve SV02 are connected to the condenser 40, respectively. The condenser 40 is communicated with the fluid holding chamber 22 of the adsorber 20 via the circulation pipe 28 and is also communicated with the fluid holding chamber 24 of the adsorber 20 via the circulation pipe 29. The water vapor discharged from each of 24 through the distribution pipes 28 and 29 is collected in one place of the condenser 40.

  In addition, one end of a circulation pipe 43 having a valve V <b> 3 is connected to the condenser 40, and the condenser 40 is communicated with the water tank 41 by the circulation pipe 43. The water tank 41 is connected to one end of a circulation pipe 42 having a valve V1 and a pump P1, and the water tank 41 is communicated with the vaporization chamber 34 of the heat storage reactor 30 by the circulation pipe 42. The water that is condensed and liquefied by the water vapor in the condenser 40 is stored in the water tank 41, and the water stored in the water tank 41 is opened through the distribution pipe 42 by opening the valve V1 and driving the pump P1. It is sent to the vaporization chamber 34 of the heat storage reactor 30, and water vapor is generated in the vaporization chamber. The water vapor generated here is used to heat the adsorber 20 with water vapor.

  Furthermore, one end of a distribution pipe 44 having a valve V2 and a pump P2 is connected to the water tank 41, and the water tank 41 and the evaporator 10 are communicated with each other by the distribution pipe 44. The water condensed in the condenser 40 is stored in the water tank 41, and the water stored in the water tank 41 opens the valve V2 and drives the pump P2 to drive the evaporator 10 through the distribution pipe 44. Supplied. The water supplied to the evaporator 10 is sent to the reaction chamber 32 of the heat storage reactor as water vapor, and the sent water vapor is adsorbed by the chemical heat storage material and used to generate heat that promotes vaporization of water in the vaporization chamber. .

  The evaporator 10 is configured so that the liquid water retention amount in the evaporation flow path is reduced, the temperature response delay due to the sensible heat change amount of the water retention liquid can be reduced, and the evaporation amount instability due to the water retention amount change can be suppressed. Therefore, the responsiveness of the generated steam amount with respect to the supplied water amount is good, and a stable steam amount can be controlled only by liquid supply (see FIG. 5). Further, by starting / stopping water supply with a small and inexpensive water valve as compared with the steam valve system (see FIG. 6), it is possible to control the generation / stop of steam without the steam valve.

  Further, continuous hot / cold heat generation requires continuous switching control between the heat storage reactor or the adsorber and the evaporator. Therefore, in the present embodiment, the three-way steam valve SV1 is installed between the evaporator 10 and the heat storage reactor 30 / adsorber 20, and the three-way steam valve SV1 is switched and driven, thereby generating in the evaporator 10. Steam can be continuously supplied to the heat storage reactor 30 / adsorber 20, and continuous hot / cold heat can be generated with a single steam valve.

  A side view of the three-way steam valve SV1 is shown in FIG. 7 (A), and a top view is shown in FIG. 7 (B). The three-way steam valve SV1 includes a drive unit 66. The drive unit 66 drives the valve unit 62 in the three-way steam valve SV1, and the circulation pipe 11 is connected by one through hole provided in the valve unit 62. It is switched so as to be connected to one of the distribution pipes 12, 14, and the distribution pipe 11 is blocked from either one of the distribution pipes 12, 14 by the seal part 64 provided in the valve part 62. It is switched (see FIGS. 7C and 7D).

  Next, an operation example of the adsorption heat pump of the present embodiment will be described with reference to FIGS. FIG. 8 is a diagram showing a distribution form when using heat in the adsorber regeneration mode, and FIG. 9 is a diagram showing a distribution form when using heat in the adsorber adsorption mode.

  In the evaporator 10, water is supplied from the water tank 41, evaporation proceeds, and water vapor is generated. At this time, for example, cold heat of about 15 ° C. can be generated, and by effectively connecting a cold heat device 60 such as an air conditioner outdoor unit, which is an example of cold heat demand, via a heat exchange pipe 61, for example, effective use of cold heat Is possible.

  Subsequently, as shown in FIG. 8, the water vapor generated in the evaporator 10 is sent to the reaction chamber 32 of the heat storage reactor 30 through the three-way steam valve SV <b> 1 and the distribution pipes 11 and 14. The sent water vapor hydrates with the chemical heat storage material to generate reaction heat. At this time, for example, heat generation exceeding 100 ° C. is possible. The heat of reaction is exchanged with the vaporizing chamber 34, whereby the water in the vaporizing chamber 34 is vaporized with heat, and generates high-temperature steam at, for example, 100 ° C. When this high-temperature steam is sent to the fluid holding chamber 24 of the adsorber 20 through the distribution pipe 38, the heat of the steam is exchanged to heat the adsorbent 26 in the fluid holding chamber 22, and the steam is condensed in the fluid holding chamber 24. Then, it is retained by the phase change to a liquid state and further releases heat of condensation. At this time, for example, a heat generation of about 90 ° C. is possible. Therefore, the adsorbent 26 in the fluid holding chamber 22 is also heated by heat exchange of the released condensation heat. Thereby, the water adsorbed by the adsorbent 26 in the fluid holding chamber 22 is desorbed as, for example, water vapor at 40 ° C. The desorbed water vapor is sent to the condenser 40 through the distribution pipe 28, and, for example, warm heat of 40 ° C. is generated.

  At this time, water generated by condensation increases in the fluid holding chamber 24, and water vapor adsorbed on the adsorbent 26 gradually decreases in the fluid holding chamber 22.

  As described above, as the amount of water vapor adsorbed in the fluid holding chamber 22 decreases, the adsorbent 26 becomes in a state where it is likely to adsorb water vapor. Therefore, the water supplied from the water tank 41 to the evaporator 10 is easily vaporized, and the generated water vapor is supplied to the fluid holding chamber 22 of the adsorber 20 as shown in FIG. At this time, the distribution pipes 14, 28, 38 are closed by the three-way steam valve SV1, the valves SV01, SV03.

  When the water vapor from the evaporator 10 is sent to the fluid holding chamber 22 through the three-way steam valve SV1 and the distribution pipes 11 and 12 as shown in FIG. 9, the water vapor is adsorbed and held by the adsorbent in the fluid holding chamber 22. At the same time, the heat of adsorption is released. At this time, for example, heat generation at 40 ° C. is possible. The released heat of adsorption is exchanged with the fluid holding chamber 24 to heat the fluid holding chamber 24, vaporize the water accumulated in the fluid holding chamber 24 by condensation, and desorb it as water vapor. The water vapor desorbed at this time is sent to the condenser 40 through the distribution pipe 29.

  At this time, in the fluid holding chamber 22, the amount of water vapor adsorbed on the adsorbent 26 increases, and in the fluid holding chamber 24, the accumulated water vaporizes and gradually decreases.

  As described above, the adsorber regeneration mode shown in FIG. 8 and the adsorber adsorption mode shown in FIG. 9 are continuously used in the condenser 40 by repeating until the heat storage energy in the heat storage reactor 30 becomes zero. The recovered thermal energy can be recovered. Thereby, the continuous production | generation of cold and warm heat is attained.

  When the hydration reaction of the chemical heat storage material in the heat storage reactor 30 does not proceed, only the circulation pipe 14 is opened by a valve, and the chemical heat storage material is heated (for example, 400 ° C.) by an external heat source (not shown). As a result, the dehydration reaction proceeds in the chemical heat storage material, and water vapor is generated. The generated water vapor is returned to the evaporator 10 through the distribution pipe 14. At this time, the evaporator 10 is used as a condenser, and the sent water vapor is condensed and stored. At this time, for example, 40 ° C. heat can be generated as the heat of condensation.

  The control device 90 is a control means that takes full control of the adsorption heat pump, and is electrically connected to a three-way steam valve SV1, valves SV01 to SV03, valves V1 to V3, pumps P1 to P2, an external heat source, and the like. It is configured to control heat utilization by controlling three-way steam valves, valves and pumps, heat sources, and heat exchange.

  Next, in the control routine by the control device 90 which is a flow control means for controlling the adsorption heat pump of the present embodiment, steam is alternately supplied to the two fluid holding chambers of the adsorber 20 to continue the heat increase cycle. Description will be made with reference to FIG. 10 focusing on a heat increase cycle control routine for recovering thermal energy.

  When the power supply of the control device 90 is turned on by turning on the start-up switch of the adsorption heat pump according to the present embodiment, the system is started and a heat increase cycle control routine is executed. The system may be started manually instead of automatically.

  When this routine is executed, first, in step 100, the valves V1, V2, and V3 attached to the distribution pipes 42, 43, and 44 are opened, and in the next step 110, the operations of the pumps P1 and P2 are started.

  Then, in order to determine the amount of adsorbate (water vapor) adsorbed on the adsorbent 26 in the fluid holding chamber 22, the amount of adsorption is measured in step 120. Then, in the next step 130, it is determined whether or not the amount of adsorption is less than a predetermined threshold value P.

  If it is determined in step 130 that the amount of water vapor adsorbed is less than the threshold value P, the adsorbent 26 is in a state in which the adsorbent 26 can continuously adsorb water vapor from the evaporator 10, and therefore the process proceeds to step 140 (adsorber adsorption). mode). In step 140, the three-way steam valve SV1 is switched so that the circulation pipe 11 connected to the evaporator 10 communicates with the circulation pipe 12 connected to the adsorber 20, and the adsorption of water vapor by the adsorbent 26 is performed. To start. At this time, adsorption heat is generated by adsorption of water vapor, and the fluid holding chamber 24 capable of heat exchange is heated. Further, the valve SV01 attached to the distribution pipe 28 is closed. In the fluid holding chamber 24 heated by exchanging heat of adsorption from the fluid holding chamber 22, water is vaporized and desorbed as water vapor. Therefore, in the next step 160, the valve SV <b> 02 provided in the distribution pipe 29 is opened, and water vapor is sent to the condenser 40 through the distribution pipe 29. At this time, the valve SV03 attached to the distribution pipe 38 is closed. In step 170, the valve V1 is closed and the operation of the pump P1 is stopped.

In the next step 180, the elapsed time after the transition to step 140 whether the situation is less than the predetermined time (timer) Q ¹ is determined, when it is determined that not yet time Q ¹ is passed Since the adsorbent of the adsorber 20 is in a state capable of adsorbing water vapor, steps 140, 160 and 170 are continued. On the other hand, when it is determined that the time Q ¹ is passed, in order to switch to adsorber regeneration mode, the process proceeds to step 200.

  In step 200, in order to desorb the water vapor from the adsorbent 26, the valve SV03 is opened and heated water vapor is supplied from the heat storage reactor 30. When the heated water vapor is sent to the fluid holding chamber 24 of the adsorber 20 through the circulation pipe 38, the water vapor is condensed in the fluid holding chamber 24, held by being phase-changed into water, and releases heat of condensation. . At this time, the heat of the water vapor supplied to the fluid holding chamber 24 is exchanged with the fluid holding chamber 22, and the condensed heat released is also exchanged with the fluid holding chamber 22. The adsorbent 26 in the holding chamber 22 is heated. In this way, the water vapor adsorbed on the adsorbent 26 in the fluid holding chamber 22 is desorbed again. Therefore, in the next step 220, the valve SV01 attached to the distribution pipe 28 is opened, and water vapor is sent to the condenser 40 through the distribution pipe 28. At this time, the three-way steam valve SV <b> 1 is switched so that the circulation pipe 11 connected to the evaporator 10 communicates with the circulation pipe 14 connected to the heat storage reactor 30.

In the next step 240, the elapsed time after the transition to step 200 it is determined whether a situation does not reach the predetermined time (timer) Q ^2, when it is determined that not yet time Q ² has elapsed In order to regenerate the adsorbent by further desorbing the water adsorbed on the adsorbent of the adsorber 20, steps 200 and 220 are continued. On the other hand, when it is determined that the elapsed time Q ² is, the process proceeds to the next step 300, first determines whether the system stop request.

  If it is determined in step 130 that the amount of water vapor adsorbed exceeds the threshold value P, the process first proceeds to step 200 (adsorber regeneration mode). Thereafter, after passing through steps 220 and 240 in the same manner as described above, the process proceeds to step 140 as described above to switch to the adsorber adsorption mode.

  When it is determined in step 300 that the system stop is not requested, in order to secure the reaction heat in the chemical heat storage material of the heat storage reactor 30 in order to continue the heat increase cycle, the “adsorber adsorption” is performed in step 320. It is determined whether or not the number of cycles counted by setting “mode + adsorber regeneration mode” as one cycle has reached a predetermined number N. On the other hand, when it is determined in step 300 that the system is requested to stop, in order to stop the system, in step 360, the valves V1, V2, and V3 are closed and the operations of the pumps P1 and P2 are stopped. This routine is terminated.

  In the next step 320, when it is determined that the number of cycles has not reached the predetermined number N, the hydration reaction to the chemical heat storage material is in a state in which it can proceed continuously (a state in which reaction heat is obtained). Then, the process returns to step 140 and repeats the same steps as described above. On the other hand, when it is determined in step 320 that the number of cycles has reached the predetermined number N, the hydration reaction of the chemical heat storage material does not proceed and the reaction heat cannot be obtained. The three-way steam valve SV1 is switched so that the flow pipe 11 connected to the heat transfer reactor 30 communicates with the flow pipe 14 connected to the heat storage reactor 30, and heat is applied to the heat storage reactor by an external heat source. Recycle the material. At this time, the dehydration reaction of the chemical heat storage material proceeds, and the water vapor generated by dehydration is returned to the evaporator 10 through the circulation pipe 14 and condensed. Also, the cycle number is reset.

  Thereafter, in step 300 again, it is determined whether or not there is a system stop request. When it is determined in step 300 that the system stop is not requested, the number of cycles is determined again in step 320, and the same steps as described above are repeated. When it is determined in step 300 that a system stop request has been made, the routine is terminated through step 360 as described above.

In 1st Embodiment, although CaO was used for the chemical heat storage material, the same effect is show | played even if it uses another chemical heat storage material. Moreover, although the example which used water vapor | steam as a fluid was demonstrated, the same effect is show | played when not only water vapor but the fluid with comparatively large evaporation latent heats, such as ammonia other than water vapor | steam, is used. When ammonia is used, a metal chloride such as magnesium chloride (MgCl ₂ ) is suitable as the chemical heat storage material.

  As described above, according to the adsorption heat pump according to the first embodiment, the steam supply amount from the evaporator and the stop are controlled by the control of the pump P2 and the valve V2, and the steam supply destination from the evaporator is switched. By performing control by controlling the three-way steam valve SV1, the number of valves can be reduced, and cost reduction, system simplification, and size reduction can be achieved.

  In addition, as in this embodiment, a system that stores warm heat using a chemical heat storage system and increases cold heat using an adsorption heat pump has a reaction heat (latent heat of vaporization) on the side that produces heat (evaporator), heat It is an effective system that compensates for the difference from the heat of reaction on the supply side. On the other hand, multiple steam valves are used, including steam supplied from the evaporator, steam inflow to the condenser, and steam heat transport bus. It is necessary to increase the diameter. Therefore, in this embodiment, by switching the steam supply destination from the evaporator by controlling the three-way steam valve SV1, the number of steam valves can be reduced, and the system can be simplified and downsized. .

(Second Embodiment)
A second embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which the steam supply destination from the evaporator is switched between the valves SV04 and SV05, and the supply switching to the condenser is performed by the three-way steam valve SV2.

  In addition, the same referential mark is attached | subjected to the component similar to 1st Embodiment, and the detailed description is abbreviate | omitted.

  As shown in FIG. 11, the adsorption heat pump 200 of the present embodiment is similar to the first embodiment in the evaporator 10, the adsorber 20, the heat storage reactor 30, the condenser 40, and the water tank 41. It is equipped with.

  One end of a distribution pipe 12 having a valve SV04 and one end of a distribution pipe 14 having a valve SV05 are respectively connected to the evaporator 10, and the evaporator 10 is connected to the adsorber 20 via the distribution pipe 12. In addition to communication, the heat storage reactor 30 is connected via the distribution pipe 14.

  The condenser 40 is connected to the other end of a distribution pipe 31 having one end connected to the three-way steam valve SV2, and the condenser 40 is connected to one end of the distribution pipe 31 and the three-way steam valve SV2. It communicates with the fluid holding chamber 24 of the adsorber 20 through a pipe 29 and communicates with the fluid holding chamber 22 of the adsorber 20 through a circulation pipe 28 having one end connected to the circulation pipe 31 and the three-way steam valve SV2. Has been. The water vapor discharged from the fluid holding chambers 22 and 24 through the distribution pipes 28 and 29 is collected in one place of the condenser 40.

  When the heat increasing system is stopped, desorption vapor from the fluid holding chamber 22 flows into the condenser 40 when the thermal battery is operated, and when the vapor from the fluid holding chamber 24 flows into the condenser 40 during the adsorption operation, the adsorption is performed. When the heat balance between the amount and the amount of transported steam is lost, the system cannot be regenerated after the system is restarted / adsorption temperature controllability deteriorates. Therefore, it is necessary to block the steam flowing into the condenser 40. In the present embodiment, the heat storage reactor operation / adsorber operation is stopped, and at the same time, the condensation / adsorption heat generation of the transport steam is stopped, and the adsorber 20 is cooled to the temperature of the condenser 40 as shown in FIG. The incoming steam to the condenser 40 is automatically stopped.

  Further, continuous hot / cold heat generation requires continuous switching control between the fluid holding chamber 22 or the fluid holding chamber 24 of the adsorber 20 and the condenser 40. Therefore, in the present embodiment, the three-way steam valve SV2 is installed between the condenser 40 and the fluid holding chambers 22 and 24 of the adsorber 20, and the three-way steam valve SV2 is switched and driven, whereby the adsorber 20 is switched. The steam generated in the fluid holding chambers 22 and 24 can be continuously switched and supplied to the condenser 40, and continuous hot / cold heat can be generated by one steam valve.

  The control device 90 is electrically connected to the three-way steam valve SV2, valves V1 to V3, SV03 to SV05, pumps P1 to P2, and an external heat source, and controls the valves, pumps, heat sources, and heat exchange. It is configured to control heat utilization.

  Next, in the control routine by the controller 90 that controls the adsorption heat pump of the present embodiment, steam is alternately supplied to the two fluid holding chambers of the adsorber 20 to continue the heat increase cycle and recover the thermal energy. Description will be made with reference to FIG. 13 focusing on the heat increase cycle control routine. In addition, about the process similar to 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  When this routine is executed, first, in step 100, the valves V1, V2, and V3 attached to the distribution pipes 42, 43, and 44 are opened, and in the next step 110, the operations of the pumps P1 and P2 are started.

  In step 120, the amount of adsorption is measured. Then, in the next step 130, it is determined whether or not the amount of adsorption is less than a predetermined threshold value P.

  If it is determined in step 130 that the amount of water vapor adsorbed is less than the threshold value P, the adsorbent 26 is in a state in which the adsorbent 26 can continuously adsorb water vapor from the evaporator 10, and therefore the process proceeds to step 400 (adsorber adsorption). mode). In step 400, the valve SV04 attached to the distribution pipe 12 is opened, and the adsorption of water vapor by the adsorbent 26 is started. At this time, adsorption heat is generated by adsorption of water vapor, and the fluid holding chamber 24 capable of heat exchange is heated. In the fluid holding chamber 24 heated by exchanging heat of adsorption from the fluid holding chamber 22, water is vaporized and desorbed as water vapor. Therefore, in the next step 420, the three-way steam valve SV <b> 2 is switched so that the circulation pipe 31 connected to the condenser 40 communicates with the circulation pipe 29 connected to the fluid holding chamber 24. , 31 is used to send water vapor to the condenser 40. At this time, the valve SV03 attached to the distribution pipe 38 and the valve SV05 attached to the distribution pipe 14 are closed. In step 170, the valve V1 is closed and the operation of the pump P1 is stopped.

In the next step 180, the elapsed time after the transition to step 400 is whether the situation is less than the predetermined time (timer) Q ¹ is determined, when it is determined that not yet time Q ¹ is passed Steps 400, 420 and 170 are continued. On the other hand, when it is determined that the time Q ¹ is passed, in order to switch to the adsorber regeneration mode, the process proceeds to step 440.

  In Step 440, in order to desorb the water vapor from the adsorbent 26, the valves SV03 and SV05 are opened, and the heated water vapor is supplied from the heat storage reactor 30. When the heated water vapor is sent to the fluid holding chamber 24 of the adsorber 20 through the circulation pipe 38, the water vapor is condensed in the fluid holding chamber 24, held by being phase-changed into water, and releases heat of condensation. . At this time, the heat of the water vapor supplied to the fluid holding chamber 24 is exchanged with the fluid holding chamber 22, and the condensed heat released is also exchanged with the fluid holding chamber 22. The adsorbent 26 in the holding chamber 22 is heated. In this way, the water vapor adsorbed on the adsorbent 26 in the fluid holding chamber 22 is desorbed again. Therefore, in the next step 460, the three-way steam valve SV <b> 2 is switched so that the circulation pipe 31 connected to the condenser 40 communicates with the circulation pipe 28 connected to the fluid holding chamber 22. , 31 is used to send water vapor to the condenser 40. At this time, the valve SV04 attached to the distribution pipe 12 is closed.

In the next step 240, the elapsed time after the transition to step 440 it is determined whether a situation does not reach the predetermined time (timer) Q ^2, when it is determined that not yet time Q ² has elapsed Steps 440 and 460 are continued. On the other hand, when it is determined that the elapsed time Q ² is, the process proceeds to the next step 300, first determines whether the system stop request.

  If it is determined in step 130 that the amount of water vapor adsorbed exceeds the threshold value P, the process first proceeds to step 440 (adsorber regeneration mode). Thereafter, after passing through steps 460 and 240 in the same manner as described above, the process proceeds to step 400 as described above to switch to the adsorber adsorption mode.

  If it is determined in step 300 that the system stop has not been requested, has the number of cycles counted as “adsorber adsorption mode + adsorber regeneration mode” as one cycle in step 320 reached a predetermined number N? It is determined whether or not. On the other hand, when it is determined in step 300 that the system is requested to stop, in order to stop the system, in step 360, the valves V1, V2, and V3 are closed and the operations of the pumps P1 and P2 are stopped. This routine is terminated.

  In the next step 320, when it is determined that the number of cycles has not reached the predetermined number N, the process returns to step 400 as it is and the same steps as described above are repeated. On the other hand, when it is determined in step 320 that the number of cycles has reached the predetermined number N, the hydration reaction of the chemical heat storage material does not proceed and the reaction heat cannot be obtained. The valve SV05 attached to is opened, heat is applied to the heat storage reactor 30 by an external heat source, and the chemical heat storage material is regenerated. At this time, the dehydration reaction of the chemical heat storage material proceeds, and the water vapor generated by dehydration is returned to the evaporator 10 through the circulation pipe 14 and condensed. Also, the cycle number is reset.

  Thereafter, in step 300 again, it is determined whether or not there is a system stop request. When it is determined in step 300 that the system stop is not requested, the number of cycles is determined again in step 320, and the same steps as described above are repeated. When it is determined in step 300 that a system stop request has been made, the routine is terminated through step 360 as described above.

  As described above, according to the adsorption heat pump according to the second embodiment, the supply source from the fluid holding chambers 22 and 24 of the adsorber to the condenser is switched by the three-way steam valve SV2, and steam is generated. By automatically stopping the condenser by equalizing the temperature on the side and the condensation temperature, the number of valves can be reduced, and cost reduction, system simplification, and size reduction can be achieved.

(Third embodiment)
A third embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which the steam supply destination from the evaporator is switched by the three-way steam valve SV1, and the supply switching to the condenser is switched by the three-way steam valve SV2.

  In addition, the same referential mark is attached | subjected to the component similar to said 1st Embodiment-2nd Embodiment, and the detailed description is abbreviate | omitted.

  As shown in FIG. 14, the adsorption heat pump 300 of the present embodiment is similar to the first embodiment in the evaporator 10, the adsorber 20, the heat storage reactor 30, the condenser 40, and the water tank 41. It is equipped with.

  Similarly to the first embodiment, the evaporator 10 is connected to the other end of a circulation pipe 11 having one end connected to the three-way steam valve SV1, and the evaporator 10 includes the circulation pipe 11 and the three-way steam valve. The refrigerant is communicated with the adsorber 20 through the circulation pipe 12 having one end connected to SV1, and is also communicated with the heat storage reactor 30 through the circulation pipe 14 having one end connected to the circulation pipe 11 and the three-way steam valve SV1. ing.

  Similarly to the second embodiment, the condenser 40 is connected to the other end of the circulation pipe 31 having one end connected to the three-way steam valve SV2, and the condenser 40 includes the circulation pipe 31 and the three-way steam valve. The adsorber is connected to the fluid holding chamber 24 of the adsorber 20 through a distribution pipe 29 having one end connected to the SV2, and through the distribution pipe 28 having one end connected to the distribution pipe 31 and the three-way steam valve SV2. The 20 fluid holding chambers 22 communicate with each other.

  The control device 90 is electrically connected to the three-way steam valves SV1, SV2, valves V1-V3, SV03, pumps P1-P2, and an external heat source, etc., and the three-way steam valves, valves, pumps, heat source, heat It is configured to control the heat utilization by controlling the exchange.

  Next, in the control routine by the control device 90 that controls the adsorption heat pump 300 of this embodiment, steam is alternately supplied to the two fluid holding chambers of the adsorber 20 to continue the heat increase cycle and recover the thermal energy. Description will be made with reference to FIG. In addition, about the process similar to 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  When this routine is executed, first, in step 100, the valves V1, V2, and V3 attached to the distribution pipes 42, 43, and 44 are opened, and in the next step 110, the operations of the pumps P1 and P2 are started.

  In step 120, the amount of adsorption is measured. Then, in the next step 130, it is determined whether or not the amount of adsorption is less than a predetermined threshold value P.

  When it is determined in step 130 that the amount of water vapor adsorbed is less than the threshold value P, the adsorbent 26 is in a state where the adsorbent 26 can continuously adsorb water vapor from the evaporator 10, and therefore the process proceeds to step 500 (adsorber adsorption). mode). In step 500, the three-way steam valve SV1 is switched so that the circulation pipe 11 connected to the evaporator 10 communicates with the circulation pipe 12 connected to the adsorber 20, and the adsorption of water vapor by the adsorbent 26 is performed. To start. At this time, adsorption heat is generated by adsorption of water vapor, and the fluid holding chamber 24 capable of heat exchange is heated. In the fluid holding chamber 24 heated by exchanging heat of adsorption from the fluid holding chamber 22, water is vaporized and desorbed as water vapor. Therefore, in the next step 520, the three-way steam valve SV2 is switched so that the circulation pipe 31 connected to the condenser 40 communicates with the circulation pipe 29 connected to the fluid holding chamber 24. Water vapor is sent to the condenser 40 through the pipes 29 and 31. At this time, the valve SV03 attached to the distribution pipe 38 is closed. In step 170, the valve V1 is closed and the operation of the pump P1 is stopped.

In the next step 180, the elapsed time after the transition to step 500 is whether the situation is less than the predetermined time (timer) Q ¹ is determined, when it is determined that not yet time Q ¹ is passed Steps 500, 520 and 170 are continued. On the other hand, when it is determined that the time Q ¹ is passed, in order to switch to the adsorber regeneration mode, the process proceeds to step 540.

  In step 540, in order to desorb the water vapor from the adsorbent 26, the valve SV03 is opened and heated water vapor is supplied from the heat storage reactor 30. When the heated water vapor is sent to the fluid holding chamber 24 of the adsorber 20 through the circulation pipe 38, the water vapor is condensed in the fluid holding chamber 24, held by being phase-changed into water, and releases heat of condensation. . At this time, the heat of the water vapor supplied to the fluid holding chamber 24 is exchanged with the fluid holding chamber 22, and the condensed heat released is also exchanged with the fluid holding chamber 22. The adsorbent 26 in the holding chamber 22 is heated. In this way, the water vapor adsorbed on the adsorbent 26 in the fluid holding chamber 22 is desorbed again. Therefore, in the next step 560, the three-way steam valve SV <b> 2 is switched so that the circulation pipe 31 connected to the condenser 40 communicates with the circulation pipe 28 connected to the fluid holding chamber 22. , 31 is used to send water vapor to the condenser 40. At this time, the three-way steam valve SV <b> 1 is switched so that the circulation pipe 11 connected to the evaporator 10 communicates with the circulation pipe 14 connected to the heat storage reactor 30.

In the next step 240, the elapsed time after the transition to step 540 it is determined whether a situation does not reach the predetermined time (timer) Q ^2, when it is determined that not yet time Q ² has elapsed Steps 540 and 560 are continued. On the other hand, when it is determined that the elapsed time Q ² is, the process proceeds to the next step 300, first determines whether the system stop request.

  If it is determined in step 130 that the amount of water vapor adsorbed exceeds the threshold value P, the process first proceeds to step 540 (adsorber regeneration mode). Thereafter, after steps 560 and 240 in the same manner as described above, the process proceeds to step 400 as described above, and the mode is switched to the adsorber adsorption mode.

  If it is determined in step 300 that the system stop has not been requested, has the number of cycles counted as “adsorber adsorption mode + adsorber regeneration mode” as one cycle in step 320 reached a predetermined number N? It is determined whether or not. On the other hand, when it is determined in step 300 that the system is requested to stop, in order to stop the system, in step 360, the valves V1, V2, and V3 are closed and the operations of the pumps P1 and P2 are stopped. This routine is terminated.

  In the next step 320, when it is determined that the number of cycles has not reached the predetermined number N, the process returns to step 400 as it is and the same steps as described above are repeated. On the other hand, when it is determined in step 320 that the number of cycles has reached the predetermined number N, the hydration reaction of the chemical heat storage material does not proceed and the reaction heat cannot be obtained. The three-way steam valve SV1 is switched so that the flow pipe 11 connected to the heat transfer reactor 30 communicates with the flow pipe 14 connected to the heat storage reactor 30, and heat is applied to the heat storage reactor by an external heat source. Recycle the material. At this time, the dehydration reaction of the chemical heat storage material proceeds, and the water vapor generated by dehydration is returned to the evaporator 10 through the circulation pipe 14 and condensed. Also, the cycle number is reset.

  Thereafter, in step 300 again, it is determined whether or not there is a system stop request. When it is determined in step 300 that the system stop is not requested, the number of cycles is determined again in step 320, and the same steps as described above are repeated. When it is determined in step 300 that a system stop request has been made, the routine is terminated through step 360 as described above.

  As described above, according to the adsorption heat pump according to the third embodiment, the steam supply destination from the evaporator is switched by the three-way steam valve SV1, and condensed from the fluid holding chambers 22 and 24 of the adsorber. By switching the supply source to the vessel with the three-way steam valve SV2, the number of valves can be reduced, and the cost, system simplification, and size reduction can be achieved.

  Further, the evaporation amount is controlled by liquid supply (pump P2 and valve V2), the condensation amount is controlled by flow passage water retention amount (pump P1 and valves V1, V3), and evaporation is performed by two three-way steam valves SV1, SV2. By switching and controlling the steam generation from the condenser 10 and the steam supply to the condenser 40, the number of steam valves can be reduced, and the amount of steam can be controlled by a small and inexpensive water valve. Continuous hot / cold heat generation Is possible.

(Fourth embodiment)
A fourth embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which the three-way steam valves SV1 and SV2 are provided with a gate shut-off mechanism that sets the gap flow rate in the closed flow path within the allowable leakage.

  In addition, since 4th Embodiment of an adsorption | suction type heat pump is a component similar to said 3rd Embodiment, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  FIG. 16 shows a side sectional view of the three-way steam valves SV1, SV2 of this embodiment. The seal part 64 provided in the valve part 62 in the three-way steam valves SV1 and SV2 is an example of a gate cutoff mechanism, and is provided so as to form a gap. Here, as shown in FIG. 17, the gap c [m] of the seal portion 64 is designed according to the following formula based on the outer diameter a [m] and the inner diameter b [m] of the seal portion 64.

However, the clearance flow rate Q [m ³ / s] is a predetermined value that is within an allowable leakage amount (for example, 1% of output) with respect to the valve front-rear pressure difference set according to the operating state and piping pressure loss. (See FIG. 18). ΔP is a pressure difference before and after the valve, and the seal portion 64 is a seal for blocking the flow pipe 11 connected to the evaporator 10 and the flow pipe 14 connected to the reaction chamber 32 of the heat storage reactor 30. In the case of the part 64, it is obtained according to the following equation.

ΔP = (Pe−ΔPe) − (Ps + ΔPs)

  However, Pe is the pressure of the evaporator flow path, ΔPe is the pressure of the circulation pipe 11, Ps is the pressure of the reaction chamber 32 of the heat storage reactor 30, and ΔPs is the pressure of the circulation pipe 14. is there.

  Further, when the seal part 64 is a seal part 64 for blocking the flow pipe 11 connected to the evaporator 10 and the flow pipe 12 connected to the fluid holding chamber 22 of the adsorber 20, The pressure difference ΔP before and after the valve is obtained according to the following equation.

ΔP = (Pe−ΔPe) − (Pd + ΔPa)

  However, Pd is the pressure of the fluid holding chamber 22 of the adsorber 20, and ΔPa is the pressure of the flow pipe 12.

  Further, when the seal portion 64 is a seal portion 64 for shutting off the distribution pipe 28 connected to the fluid holding chamber 22 of the adsorber 20 and the distribution pipe 31 connected to the condenser 40. The valve front-rear pressure difference ΔP is obtained according to the following equation.

ΔP = (Pd−ΔPd) − (Pc + ΔPc)

  However, Pd is the pressure of the fluid holding chamber 22 of the adsorber 20, ΔPd is the pressure of the circulation pipe 28, Pc is the pressure of the condenser 40, and ΔPc is the pressure of the circulation pipe 31. .

  Further, when the seal portion 64 is a seal portion 64 for blocking the flow piping 29 connected to the fluid holding chamber 24 of the adsorber 20 and the flow piping 31 connected to the condenser 40. The valve front-rear pressure difference ΔP is obtained according to the following equation.

ΔP = (Pt−ΔPt) − (Pc + ΔPc)

  However, Pt is the pressure of the fluid holding chamber 24 of the adsorber 20, and ΔPt is the pressure of the flow pipe 29.

  In addition, about the other structure and effect | action of the adsorption heat pump of 4th Embodiment, since it is the same as that of 3rd Embodiment, description is abbreviate | omitted.

  As explained above, according to the adsorption heat pump of the fourth embodiment, with respect to the pressure difference before and after the valve set by the operating state of the system (heat storage reactor operation / adsorber operation) and the pressure loss of the connecting pipe, By designing the three-way steam valve so that the gap flow rate through the gap at the seal part that blocks the steam flow is less than or equal to the allowable leakage amount, the leak rate of the other gas flow is mitigated simultaneously with the flow of one gas It is possible to simplify the valve, ensure durability, and reduce costs.

(Fifth embodiment)
A fifth embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which the amount of transport steam and transport stop between the heat storage reactor 30 and the adsorber 20 are controlled by controlling the valve V1 and the pump P1 without providing a valve in the distribution pipe 38. Yes.

  In addition, the same referential mark is attached | subjected to the component similar to said 1st Embodiment-3rd Embodiment, and the detailed description is abbreviate | omitted.

  As shown in FIG. 19, the adsorption heat pump 500 of the present embodiment is similar to the first embodiment in the evaporator 10, the adsorber 20, the heat storage reactor 30, the condenser 40, and the water tank 41. The vaporization chamber 34 of the heat storage reactor 30 and the fluid holding chamber 24 of the adsorber 20 are communicated with each other by a distribution pipe 38.

  In the heat transfer system of the steam heat transport type, the heat generated in the heat storage reactor 30 is removed by the vaporization chamber 34 and transported and condensed to the fluid holding chamber 24 of the adsorber 20 to supply desorption heat. On the other hand, after the desorption reaction of the adsorber 20 is completed, the water generated in the adsorption reaction is removed by evaporating the water condensed in the vaporization chamber 34, so that the heat from the heat storage reactor 30 during the adsorption reaction is removed. Supply steam must be shut off. Therefore, in the present embodiment, the temperature response delay due to the sensible heat change amount of the water retention liquid can be reduced by adopting a flow path configuration in which the liquid water retention amount in the vaporization chamber 34 of the heat storage reactor 30 is small (see FIG. 20). In addition, the instability of evaporation due to a change in the water retention amount can be suppressed, the responsiveness of the generated steam amount with respect to the supply water amount is good, and the stable steam amount can be controlled only by liquid supply. Further, by starting / stopping water supply with a small and inexpensive valve V1 as compared with the steam valve system (see FIG. 21), steam generation / stop control can be performed without providing a steam valve in the distribution pipe 38. Is possible.

  The control device 90 is electrically connected to the three-way steam valves SV1, SV2, valves V1 to V3, pumps P1 to P2, and an external heat source, and performs three-way steam valves, valves, pumps, heat sources, and heat exchange. It is configured to control and use heat.

  Next, among the control routines by the control device 90 that controls the adsorption heat pump of the present embodiment, the heat increase cycle control routine will be mainly described with reference to FIG. In addition, about the process similar to 3rd Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  When this routine is executed, first, in step 600, the valves V2 and V3 attached to the distribution pipes 43 and 44 are opened. At this time, the valve V1 attached to the distribution pipe 42 is closed. In the next step 610, the operation of the pump P2 is started.

  In step 120, the amount of adsorption is measured. Then, in the next step 130, it is determined whether or not the amount of adsorption is less than a predetermined threshold value P.

  When it is determined in step 130 that the amount of water vapor adsorbed is less than the threshold value P, the adsorbent 26 is in a state where the adsorbent 26 can continuously adsorb water vapor from the evaporator 10, and therefore the process proceeds to step 500 (adsorber adsorption). mode). In step 500, the three-way steam valve SV1 is switched so that the circulation pipe 11 connected to the evaporator 10 communicates with the circulation pipe 12 connected to the adsorber 20, and the adsorption of water vapor by the adsorbent 26 is performed. To start. At this time, adsorption heat is generated by adsorption of water vapor, and the fluid holding chamber 24 capable of heat exchange is heated. In the fluid holding chamber 24 heated by exchanging heat of adsorption from the fluid holding chamber 22, water is vaporized and desorbed as water vapor. Therefore, in the next step 620, the three-way steam valve SV2 is switched so that the circulation pipe 31 connected to the condenser 40 communicates with the circulation pipe 29 connected to the fluid holding chamber 24, and the circulation pipe 29 is switched. , 31 is used to send water vapor to the condenser 40. In step 630, the valve V1 attached to the distribution pipe 42 is closed, and the operation of the pump P1 is stopped.

In the next step 180, the elapsed time after the transition to step 500 is whether the situation is less than the predetermined time (timer) Q ¹ is determined, when it is determined that not yet time Q ¹ is passed Steps 500, 620 and 630 are continued. On the other hand, when it is determined that the time Q ¹ is passed, in order to switch to the adsorber regeneration mode, the process proceeds to step 640.

  In step 640, in order to desorb the water vapor from the adsorbent 26, the valve V1 attached to the flow pipe 42 is opened, the operation of the pump P1 is started, and heated water vapor is supplied from the heat storage reactor 30. When the heated water vapor is sent to the fluid holding chamber 24 of the adsorber 20 through the circulation pipe 38, the water vapor is condensed in the fluid holding chamber 24, held by being phase-changed into water, and releases heat of condensation. . In the next step 560, the three-way steam valve SV2 is switched so that the flow pipe 31 connected to the condenser 40 communicates with the flow pipe 28 connected to the fluid holding chamber 22, and the flow pipes 28, 31 are switched. Steam is sent through the condenser 40 to the condenser 40. At this time, the three-way steam valve SV <b> 1 is switched so that the circulation pipe 11 connected to the evaporator 10 communicates with the circulation pipe 14 connected to the heat storage reactor 30.

In the next step 240, the elapsed time after the transition to step 540 it is determined whether a situation does not reach the predetermined time (timer) Q ^2, when it is determined that not yet time Q ² has elapsed Steps 640 and 560 are continued. On the other hand, when it is determined that the elapsed time Q ² is, the process proceeds to the next step 300, first determines whether the system stop request.

  If it is determined in step 130 that the water vapor adsorption amount has reached or exceeded the threshold value P, the process first proceeds to step 640 (adsorber regeneration mode). Thereafter, after steps 560 and 240 in the same manner as described above, the process proceeds to step 500 as described above to switch to the adsorber adsorption mode.

  If it is determined in step 300 that the system stop has not been requested, has the number of cycles counted as “adsorber adsorption mode + adsorber regeneration mode” as one cycle in step 320 reached a predetermined number N? It is determined whether or not. On the other hand, when it is determined in step 300 that the system is requested to stop, in order to stop the system, in step 360, the valves V1, V2, and V3 are closed and the operations of the pumps P1 and P2 are stopped. This routine is terminated.

  In the next step 320, when it is determined that the number of cycles has not reached the predetermined number N, the process returns to step 500 as it is and the same steps as described above are repeated. On the other hand, when it is determined in step 320 that the number of cycles has reached the predetermined number N, the hydration reaction of the chemical heat storage material does not proceed and the reaction heat cannot be obtained. The three-way steam valve SV1 is switched so that the flow pipe 11 connected to the flow pipe 14 connected to the heat storage reactor 30 is communicated, and heat is applied to the heat storage reactor 30 by an external heat source. Recycle the heat storage material. At this time, the dehydration reaction of the chemical heat storage material proceeds, and the water vapor generated by dehydration is returned to the evaporator 10 through the circulation pipe 14 and condensed. Also, the cycle number is reset.

  In the next step 680, the valve V1 attached to the distribution pipe 42 is closed, and the operation of the pump P1 is stopped.

  Thereafter, in step 300 again, it is determined whether or not there is a system stop request. When it is determined in step 300 that the system stop is not requested, the number of cycles is determined again in step 320, and the same steps as described above are repeated. When it is determined in step 300 that a system stop request has been made, the routine is terminated through step 360 as described above.

  As described above, according to the adsorption heat pump according to the fifth embodiment, the valve between the heat storage reactor 30 and the adsorber 20 is controlled by the control of the valve V1 and the pump P1 without providing the valve in the circulation pipe 38. By controlling the amount of transported steam and transportation stoppage, the number of steam valves can be further reduced, and the cost can be reduced and the system can be simplified and downsized.

(Sixth embodiment)
A sixth embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which the drive units of the three-way steam valves SV1 and SV2 are shared.

  In addition, since 6th Embodiment of an adsorption | suction type heat pump is a component similar to said 5th Embodiment, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  In the present embodiment, as shown in FIGS. 23A and 23B, a three-way steam valve capable of switching and supplying steam generated by the evaporator 10 to the heat storage reactor 30 and the adsorber 20, and an adsorber The driving unit 660 with the three-way steam valves SV1 and SV2 capable of switching and supplying the steam generated in the 20 fluid holding chambers 22 and 24 to the condenser 40 is shared, and the evaporator 10 and the heat storage reactor 30 are connected. At the same time, the fluid holding chamber 22 of the adsorber 20 and the condenser 40 are connected (position A in FIG. 23A), while the evaporator 10 and the adsorber 20 are connected at the same time. The fluid holding chamber 24 is connected (position B in FIG. 23B).

  In addition, as shown in FIG.23 (C), the drive part with three-way steam valve SV1 and SV2 may be installed in the three-way steam valve SV1 and SV2 side, and reduction in size may be achieved.

  The control device 90 is electrically connected to the shared drive unit 660 of the three-way steam valves SV1 and SV2, valves V1 to V3, pumps P1 to P2, and an external heat source, and the valves, pumps, heat source, heat It is configured to control the heat utilization by controlling the exchange.

  Next, among the control routines by the control device 90 that controls the adsorption heat pump of the present embodiment, the heat increase cycle control routine will be mainly described with reference to FIG. In addition, about the process similar to 5th Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  When this routine is executed, first, in step 600, the valves V2 and V3 attached to the distribution pipes 43 and 44 are opened. At this time, the valve V1 attached to the distribution pipe 42 is closed. In the next step 610, the operation of the pump P2 is started.

  In step 120, the amount of adsorption is measured. Then, in the next step 130, it is determined whether or not the amount of adsorption is less than a predetermined threshold value P.

  When it is determined in step 130 that the amount of water vapor adsorbed is less than the threshold value P, the adsorbent 26 is in a state where the adsorbent 26 can continuously adsorb water vapor from the evaporator 10, and therefore the process proceeds to step 500 (adsorber adsorption). mode). In step 700, the circulation pipe 11 connected to the evaporator 10 is communicated with the circulation pipe 12 connected to the adsorber 20, and the circulation pipe 31 connected to the condenser 40 is connected to the fluid holding chamber. The three-way steam valves SV1 and SV2 are switched to the position B so as to communicate with the distribution pipe 29 connected to 24, and the adsorption of water vapor by the adsorbent 26 is started. At this time, adsorption heat is generated by adsorption of water vapor, and the fluid holding chamber 24 capable of heat exchange is heated. In the fluid holding chamber 24 heated by exchanging heat of adsorption from the fluid holding chamber 22, water is vaporized and desorbed as water vapor. Further, water vapor is sent to the condenser 40 through the distribution pipes 29 and 31. In step 630, the valve V1 attached to the distribution pipe 42 is closed, and the operation of the pump P1 is stopped.

In the next step 180, the elapsed time after the transition to step 700 is whether the situation is less than the predetermined time (timer) Q ¹ is determined, when it is determined that not yet time Q ¹ is passed Steps 700 and 630 are continued. On the other hand, when it is determined that the time Q ¹ is passed, in order to switch to the adsorber regeneration mode, the process proceeds to step 640.

  In step 640, in order to desorb the water vapor from the adsorbent 26, the valve V1 attached to the flow pipe 42 is opened, the operation of the pump P1 is started, and heated water vapor is supplied from the heat storage reactor 30. When the heated water vapor is sent to the fluid holding chamber 24 of the adsorber 20 through the circulation pipe 38, the water vapor is condensed in the fluid holding chamber 24, held by being phase-changed into water, and releases heat of condensation. . In the next step 720, the flow piping 31 connected to the condenser 40 is communicated with the flow piping 28 connected to the fluid holding chamber 22, and the flow piping 11 connected to the evaporator 10 is connected. The three-way steam valves SV1 and SV2 are switched to position A so as to communicate with the circulation pipe 14 connected to the heat storage reactor 30, and water vapor is sent to the condenser 40 through the circulation pipes 28 and 31.

In the next step 240, the elapsed time after the transition to step 540 it is determined whether a situation does not reach the predetermined time (timer) Q ^2, when it is determined that not yet time Q ² has elapsed Steps 640 and 720 are continued. On the other hand, when it is determined that the elapsed time Q ² is, the process proceeds to the next step 300, first determines whether the system stop request.

  If it is determined in step 130 that the water vapor adsorption amount has reached or exceeded the threshold value P, the process first proceeds to step 640 (adsorber regeneration mode). Thereafter, after passing through step 720 in the same manner as described above, the process proceeds to step 500 as described above to switch to the adsorber adsorption mode.

  If it is determined in step 300 that the system stop has not been requested, has the number of cycles counted as “adsorber adsorption mode + adsorber regeneration mode” as one cycle in step 320 reached a predetermined number N? It is determined whether or not. On the other hand, when it is determined in step 300 that the system is requested to stop, in order to stop the system, in step 360, the valves V1, V2, and V3 are closed and the operations of the pumps P1 and P2 are stopped. This routine is terminated.

  In the next step 320, when it is determined that the number of cycles has not reached the predetermined number N, the process returns to step 500 as it is and the same steps as described above are repeated. On the other hand, when it is determined in step 320 that the number of cycles has reached the predetermined number N, the hydration reaction of the chemical heat storage material does not proceed and the reaction heat cannot be obtained. The three-way steam valves SV1 and SV2 are switched to position A so that the flow pipe 11 connected to the flow pipe 14 is connected to the heat storage reactor 30, and heat is supplied to the heat storage reactor by an external heat source. Grant and regenerate chemical heat storage material. At this time, the dehydration reaction of the chemical heat storage material proceeds, and the water vapor generated by dehydration is returned to the evaporator 10 through the circulation pipe 14 and condensed. Also, the cycle number is reset.

  In the next step 680, the valve V1 attached to the distribution pipe 42 is closed, and the operation of the pump P1 is stopped.

  Thereafter, in step 300 again, it is determined whether or not there is a system stop request. When it is determined in step 300 that the system stop is not requested, the number of cycles is determined again in step 320, and the same steps as described above are repeated. When it is determined in step 300 that a system stop request has been made, the routine is terminated through step 360 as described above.

  As described above, according to the adsorption heat pump according to the sixth embodiment, the switching control of two three-way steam valves can be performed by one drive unit, so that system elements and costs can be reduced. it can.

(Seventh embodiment)
A seventh embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which two three-way steam valves SV1 and SV2 are realized by one rotary switching steam valve SV12.

  The seventh embodiment of the adsorption heat pump includes a rotary switching steam valve SV12 shown in FIG. FIG. 25 is a side view of the rotary switching steam valve SV12. The rotary switching steam valve SV12 includes a drive unit 760 for rotationally driving, a drive shaft 762, a manifold 764 for connecting two flow pipes, a rotary unit 766, and a fixed pipe unit 768.

  FIG. 26A shows a top view of the rotary switching steam valve SV12. The rotary switching steam valve SV12 rotates to switch between position A and position B. FIG. 26B shows a bottom view of the rotating portion 766. Two manifolds 764 are configured to connect two flow pipes. FIG. 26C shows a top view of the fixed pipe portion 768. The fixed piping part 768 includes a hole and a seal part 770 for connecting to each of the distribution pipes 11, 12, 14, 28, 29, 31.

  The evaporator 10 is connected to the other end of a circulation pipe 11 having one end connected to the rotary switching steam valve SV12. The evaporator 10 has one end connected to the circulation pipe 11 and the rotary switching steam valve SV12. In addition, the adsorber 20 is communicated with the heat storage reactor 30 via the circulation pipe 14 having one end connected to the circulation pipe 11 and the rotary switching steam valve SV12.

  Similarly to the second embodiment, the condenser 40 is connected to the other end of the circulation pipe 31 having one end connected to the rotary switching steam valve SV12. The condenser 40 is connected to the circulation pipe 31 and the rotary switching. The fluid holding chamber 24 of the adsorber 20 is connected to the steam valve SV12 via a circulation pipe 29 having one end connected thereto, and is connected to the circulation pipe 31 and the circulation switching steam valve SV12 via a circulation pipe 28 having one end connected thereto. Are connected to the fluid holding chamber 22 of the adsorber 20.

  As shown in FIG. 27A, when the rotary switching steam valve SV12 rotates, the circulation pipe 31 connected to the condenser 40 is brought into communication with the circulation pipe 28 connected to the fluid holding chamber 22. In addition, the three-way steam valves SV1 and SV2 are switched to the position A so that the flow pipe 11 connected to the evaporator 10 and the flow pipe 14 connected to the heat storage reactor 30 are communicated with each other.

  In addition, as shown in FIG. 27B, the circulation pipe 11 connected to the evaporator 10 is connected to the circulation pipe 12 connected to the adsorber 20 and is connected to the condenser 40. The three-way steam valves SV1 and SV2 are switched to the position B so that the circulation pipe 31 communicates with the circulation pipe 29 connected to the fluid holding chamber 24.

  In addition, since the other structure and effect | action of 7th Embodiment of an adsorption | suction type heat pump are the same as that of said 6th Embodiment, description is abbreviate | omitted.

  As described above, according to the adsorption heat pump according to the seventh embodiment, two three-way steam valves are realized by one rotary switching steam valve, so that the number of steam valves can be further reduced. .

(Eighth embodiment)
An eighth embodiment of the adsorption heat pump of the present invention will be described with reference to FIGS. This embodiment has a system configuration in which steam is supplied from the evaporator to both the heat storage reactor and the adsorber when the system is started and restarted after being stopped.

  In addition, since 8th Embodiment of an adsorption | suction type heat pump is a component similar to said 5th Embodiment, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  In the system start mode and the restart mode after long-term stop, the evaporator temperature becomes room temperature (summer 35 ° C.), and a sensible heat amount is required for cooling to the operating temperature (10-15 ° C.). On the other hand, there is a problem that it takes a long time to cool from normal temperature to the operating temperature because there is a limit in output in the generation of cold in the operation of only the adsorber or the heat storage reactor. Therefore, in the present embodiment, the heat storage reaction is performed by performing valve position control of the three-way steam valves SV1 and SV2 connecting the evaporator 10 and the heat storage reactor 30 / adsorber 20 at the time of starting and restarting the system. Control is made so that steam can be supplied to both the vessel 30 and the adsorber 20, and the sensible heat amount of the evaporator is assisted. As a result, even if the evaporator temperature is at a normal temperature start, it is possible to greatly shorten the start response time by temporarily increasing the cold output (a period from the normal temperature to reaching the operating temperature).

  In order to operate the adsorber 20 in the restart mode after the system is started and stopped, it is necessary to desorb the adsorber 20 after the system is stopped. Therefore, in the present embodiment, the sensible heat of the heat storage reactor 30 is used to generate warm heat immediately after stopping, and the adsorber 20 is desorbed by vapor heat transport.

  The lowered reactor temperature is self-recovered by the heat of hydration reaction of the heat storage reactor 30 in the start / restart mode, and at the same time, the heat storage reactor 30 immediately after the start / restart mode is set to the operating temperature. It is possible to resume the vapor heat transport necessary for the elimination reaction.

  Further, in the present embodiment, as in the sixth embodiment, the driving units for the two three-way steam valves SV1 and SV2 are shared. At this time, if it is controlled so that steam can be supplied from the evaporator 10 to both the heat storage reactor 30 and the adsorber 20, from the fluid holding chamber 24 and the condenser 40 of the adsorber via the three-way steam valve SV2. Steam flows into the fluid holding chamber 22 and the cold output due to the adsorption reaction of the adsorber 20 is reduced.

  Therefore, in the present embodiment, as shown in FIGS. 28A to 28C, the steam supply ratio to the heat storage reactor 30 / adsorber 20 is controlled by controlling the positions of the three-way steam valves SV1, SV2. At the same time, the steam inflow from the fluid holding chamber 22 to the condenser 40 is interrupted, and the steam is caused to flow from the fluid holding chamber 24 of the adsorber 20 into the condenser 40 (see position C in FIG. 28B). ), The steam generated in the fluid holding chamber 24 of the adsorber 20 is controlled so that the steam can be supplied to both the heat storage reactor 30 and the adsorber 20 without flowing into the fluid holding chamber 22, and the system is started, Assist the sensible heat of the evaporator in the restart mode.

  As a result, the switching control of the two three-way steam valves SV1 and SV2 can be performed by one drive unit, and at the same time, even if the evaporator temperature starts at room temperature, the cold output is temporarily (from room temperature to the operating temperature). Every time it is increased, the start response time can be greatly shortened.

  The control device 90 is electrically connected to the shared drive unit 660 of the three-way steam valves SV1 and SV2, valves V1 to V3, pumps P1 to P2, and an external heat source, and the valves, pumps, heat source, heat It is configured to control the heat utilization by controlling the exchange.

  Next, among the control routines by the control device 90 that controls the adsorption heat pump of the present embodiment, the heat increase cycle control routine will be mainly described with reference to FIG. In addition, about the process similar to 6th Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  When this routine is started at the time of starting the system and restarting after stopping, first, in step 600, the valves V2 and V3 attached to the distribution pipes 43 and 44 are opened. At this time, the valve V1 attached to the distribution pipe 42 is closed. In the next step 610, the operation of the pump P2 is started.

  In step 800, the circulation pipe 11 connected to the evaporator 10 is communicated with the circulation pipe 12 connected to the adsorber 20 and the circulation pipe 14 connected to the heat storage reactor 30 and condensed. The three-way steam valves SV1 and SV2 are switched to position C so that the flow pipe 31 connected to the vessel 40 communicates with the flow pipe 29 connected to the fluid holding chamber 24, and the water vapor generated by the adsorbent 26 is reduced. Adsorption is started and heat is applied to the heat storage reactor 30 by an external heat source.

In the next step 810, the elapsed time after the transition to step 800 is whether the situation is less than the predetermined time (timer) Q ³ is determined, when it is determined that has not passed yet time Q ³ are Step 800 is continued. On the other hand, when it is determined that the elapsed time Q ³ are for switching the adsorber adsorption mode or adsorber regeneration mode, the process proceeds to step 120.

  In step 120, the amount of adsorption is measured. Then, in the next step 130, it is determined whether or not the amount of adsorption is less than a predetermined threshold value P.

  When it is determined in step 130 that the water vapor adsorption amount is less than the threshold value P, the process proceeds to step 500 (adsorber adsorption mode). In step 700, the circulation pipe 11 connected to the evaporator 10 is communicated with the circulation pipe 12 connected to the adsorber 20, and the circulation pipe 31 connected to the condenser 40 is connected to the fluid holding chamber. The three-way steam valves SV1 and SV2 are switched to the position B so as to communicate with the distribution pipe 29 connected to 24, and the adsorption of water vapor by the adsorbent 26 is started. In step 630, the valve V1 attached to the distribution pipe 42 is closed, and the operation of the pump P1 is stopped.

In the next step 180, the elapsed time after the transition to step 700 is whether the situation is less than the predetermined time (timer) Q ¹ is determined, when it is determined that not yet time Q ¹ is passed Steps 700 and 630 are continued. On the other hand, when it is determined that the time Q ¹ is passed, in order to switch to the adsorber regeneration mode, the process proceeds to step 640.

  In step 640, in order to desorb the water vapor from the adsorbent 26, the valve V1 attached to the flow pipe 42 is opened, the operation of the pump P1 is started, and heated water vapor is supplied from the heat storage reactor 30. In the next step 720, the flow piping 31 connected to the condenser 40 is communicated with the flow piping 28 connected to the fluid holding chamber 22, and the flow piping 11 connected to the evaporator 10 is connected. The three-way steam valves SV1 and SV2 are switched to position A so as to communicate with the circulation pipe 14 connected to the heat storage reactor 30, and water vapor is sent to the condenser 40 through the circulation pipes 28 and 31.

In the next step 240, the elapsed time after the transition to step 540 it is determined whether a situation does not reach the predetermined time (timer) Q ^2, when it is determined that not yet time Q ² has elapsed Steps 640 and 720 are continued. On the other hand, when it is determined that the elapsed time Q ² is, the process proceeds to the next step 300, first determines whether the system stop request.

  If it is determined in step 130 that the water vapor adsorption amount has reached or exceeded the threshold value P, the process first proceeds to step 640 (adsorber regeneration mode). Thereafter, after passing through step 720 in the same manner as described above, the process proceeds to step 500 as described above to switch to the adsorber adsorption mode.

  If it is determined in step 300 that the system stop has not been requested, has the number of cycles counted as “adsorber adsorption mode + adsorber regeneration mode” as one cycle in step 320 reached a predetermined number N? It is determined whether or not. On the other hand, when it is determined in step 300 that the system is requested to stop, in order to stop the system, in step 360, the valves V1, V2, and V3 are closed and the operations of the pumps P1 and P2 are stopped. This routine is terminated.

  In the next step 320, when it is determined that the number of cycles has not reached the predetermined number N, the process returns to step 500 as it is and the same steps as described above are repeated. On the other hand, when it is determined in step 320 that the number of cycles has reached the predetermined number N, the hydration reaction of the chemical heat storage material does not proceed and the reaction heat cannot be obtained. The three-way steam valves SV1 and SV2 are switched to position A so that the flow pipe 11 connected to the flow pipe 14 is connected to the heat storage reactor 30, and heat is supplied to the heat storage reactor by an external heat source. Grant and regenerate chemical heat storage material. Also, the cycle number is reset.

  In the next step 680, the valve V1 attached to the distribution pipe 42 is closed, and the operation of the pump P1 is stopped.

  Thereafter, in step 300 again, it is determined whether or not there is a system stop request. When it is determined in step 300 that the system stop is not requested, the number of cycles is determined again in step 320, and the same steps as described above are repeated. When it is determined in step 300 that a system stop request has been made, the routine is terminated through step 360 as described above.

  As described above, according to the adsorption heat pump according to the eighth embodiment, the positions of the three-way steam valves SV1, SV2 are controlled, the steam supply ratio to the heat storage reactor / adsorber is controlled, and the three-way steam is controlled. Vapor is supplied from the evaporator 10 to both the fluid holding chamber 22 of the adsorber 20 and the reaction chamber 32 of the heat storage reactor 30 by the valve SV1, and only from the fluid holding chamber 24 of the adsorber 20 by the three-way steam valve SV2. By controlling the vapor to flow into the condenser 40, a short circuit between the fluid holding chambers 22 and 24 of the adsorber 20 can be prevented, and the cold output can be temporarily increased.

  In the eighth embodiment, the case where the driving parts of the three-way steam valves SV1 and SV2 are shared has been described as an example. However, the present invention is not limited to this, and each of the three-way steam valves SV1 and SV2 In the configuration including the drive unit, the technology for temporarily increasing the cooling output by the position control of the three-way steam valves SV1 and SV2 described in the eighth embodiment may be applied.

  In the above-described embodiment, an example in which water is used as the fluid has been described. However, the same effect can be obtained when a fluid having a relatively large latent heat of evaporation such as ammonia other than water is used.

  Moreover, although the above-mentioned embodiment demonstrated and demonstrated the case where a silica gel was used as an adsorbent, the same effect can be show | played not only using a silica gel but using adsorbents other than the silica gel described above.

DESCRIPTION OF SYMBOLS 10 Evaporator 11, 12, 14 Flow piping 20 Adsorber 22, 24 Fluid holding chamber 28, 29, 31, 38, 42, 43, 44 Flow piping 30 Thermal storage reactor 32 Reaction chamber 34 Vaporization chamber 40 Condenser 41 Water tank 66, 660, 760 Drive unit 62 Valve unit 64 Seal unit 90 Control devices 100, 200, 300, 500 Adsorption heat pumps P1, P2 Pumps SV01-SV05 Valves SV1, SV2 Three-way steam valves SV12 Rotary switching steam valves V1, V2 , V3 valve

Claims (15)

An evaporator for evaporating the fluid supplied from the storage unit;
A fluid that is supplied from the evaporator and that holds and holds the fluid and desorbs the held fluid, and a fluid that is supplied from the storage and holds and holds the fluid A second fluid holding portion that is thermally connected to the first fluid holding portion, and the first fluid holding portion includes an adsorbent that releases reaction heat when holding the supplied fluid. And
A heat storage reaction unit having a chemical heat storage material that releases reaction heat that is greater than the latent heat of evaporation of the fluid when the fluid is supplied from the evaporator and the fluid is fixed, and stores heat when the fluid is desorbed. The fluid is supplied from the storage unit , and the fluid vaporization unit for vaporizing the fluid is provided in a thermally connected state, and the vaporized fluid is supplied to the second fluid holding unit of the adsorber. A heat storage reactor for heating the adsorbent,
The adsorber is communicated with the first fluid holding unit and the second fluid holding unit so as to allow fluid to flow, and is discharged from the first fluid holding unit and the second fluid holding unit. A condenser for condensing the fluid and supplying the condensed fluid to the reservoir;
A supply destination switching three-way valve for switching the supply destination of the fluid from the evaporator from one of the adsorber and the heat storage reactor;
A pump for supplying the fluid from the reservoir to the evaporator;
A valve for stopping the supply of the fluid from the reservoir to the evaporator;
The supply destination switching unit 3 controls the pump and the valve so as to control the supply amount and supply stop of the fluid from the storage unit to the evaporator, and switches the supply destination of the fluid from the evaporator. A control unit for controlling the one-way valve;
Adsorption heat pump with An evaporator for evaporating the fluid supplied from the storage unit;
A fluid that is supplied from the evaporator and that holds and holds the fluid and desorbs the held fluid, and a fluid that is supplied from the storage and holds and holds the fluid A second fluid holding portion that is thermally connected to the first fluid holding portion, and the first fluid holding portion includes an adsorbent that releases reaction heat when holding the supplied fluid. And
A heat storage reaction unit having a chemical heat storage material that releases reaction heat that is greater than the latent heat of evaporation of the fluid when the fluid is supplied from the evaporator and the fluid is fixed, and stores heat when the fluid is desorbed. The fluid is supplied from the storage unit , and the fluid vaporization unit for vaporizing the fluid is provided in a thermally connected state, and the vaporized fluid is supplied to the second fluid holding unit of the adsorber. A heat storage reactor for heating at least the adsorbent,
The adsorber is communicated with the first fluid holding unit and the second fluid holding unit so as to allow fluid to flow, and is discharged from the first fluid holding unit and the second fluid holding unit. A condenser for condensing the fluid and supplying the condensed fluid to the reservoir;
A communication destination switching three-way valve for switching the point of communication with the condenser from one of the first fluid holding unit and the second fluid holding unit of the adsorber to the other;
A control unit for controlling the communication destination switching three-way valve so as to switch a destination communicated with the condenser;
Adsorption heat pump with A supply destination switching three-way valve for switching the supply destination of the fluid from the evaporator from one of the adsorber and the heat storage reactor;
A pump for supplying the fluid from the reservoir to the evaporator;
A valve for stopping the supply of the fluid from the reservoir to the evaporator;
The control unit controls the communication destination switching three-way valve so as to switch a destination communicated with the condenser, and controls a supply amount and a supply stop of the fluid from the storage unit to the evaporator. The adsorption heat pump according to claim 2, wherein the pump and the valve are controlled to control the supply destination switching three-way valve so as to switch the supply destination of the fluid from the evaporator.   The supply destination switching three-way valve has a shut-off mechanism configured such that the fluid supply amount to the side different from the fluid supply destination from the switched evaporator is within a predetermined allowable leakage amount. An adsorption heat pump according to claim 1 or 3, comprising:   The communication destination switching three-way valve has a shut-off mechanism configured such that the amount of fluid supplied from a side different from the fluid supply source to the condenser is within a predetermined allowable leakage amount. An adsorption heat pump according to claim 2 or 3, comprising: A second pump for supplying the fluid from the reservoir to the heat storage reactor;
A second valve for stopping supply of the fluid from the storage unit to the heat storage reactor,
The control unit controls the second pump and the second valve so as to control the supply amount and supply stop of the vaporized fluid from the heat storage reactor to the second fluid holding unit of the adsorber. The adsorption heat pump according to any one of claims 1 to 5. The communication destination switching three-way so as to switch the communication destination with the condenser to the first fluid holding unit of the adsorber and to switch the supply destination of the fluid from the evaporator to the heat storage reactor. Driving the valve and the supply destination switching three-way valve, switching the destination communicating with the condenser to the second fluid holding portion of the adsorber, and supplying the fluid supply destination from the evaporator A drive unit for driving the communication destination switching three-way valve and the supply destination switching three-way valve so as to switch to an adsorber;
4. The adsorption heat pump according to claim 3, wherein the control unit controls the driving unit so as to switch a destination to be communicated with the condenser and a supply destination of a fluid from the evaporator.   The communication destination switching three-way valve and the supply destination switching three-way valve are configured by a rotary switching valve for switching a destination communicated with the condenser and a fluid supply destination from the evaporator. The adsorption heat pump according to claim 7. The supply destination switching three-way valve can switch the supply destination of the fluid from the evaporator to either the adsorber or the heat storage reactor, or both the adsorber and the heat storage reactor. Because
The control unit sets the supply destination switching three-way valve so as to supply fluid from the evaporator to the adsorber and the heat storage reactor when the adsorption heat pump is started or restarted. The adsorption heat pump according to claim 1, 3 or 4 to be controlled. The supply destination switching three-way valve can switch the supply destination of the fluid from the evaporator to either the adsorber or the heat storage reactor, or both the adsorber and the heat storage reactor. Because
The drive unit switches a point of communication with the condenser to the second fluid holding unit of the adsorber, and supplies fluid from the evaporator to the adsorber and the heat storage reactor. Driving the communication destination switching three-way valve and the supply destination switching three-way valve, and switching the destination communicating with the condenser to the first fluid holding portion of the adsorber, and The communication destination switching three-way valve and the supply destination switching three-way valve are driven so as to switch the supply destination of the fluid from the evaporator to the heat storage reactor, and the adsorption destination is connected to the condenser. The communication destination switching three-way valve and the supply destination switching three-way valve are driven so as to switch to the second fluid holding portion of the vessel and to switch the supply destination of the fluid from the evaporator to the adsorber. A drive unit that further includes
The said control part controls the said drive part so that the fluid from the said evaporator may be supplied with respect to the said adsorption device and the said thermal storage reactor, when starting or restarting the said adsorption heat pump. The adsorption heat pump described.   The adsorption heat pump according to any one of claims 1 to 10, wherein the fluid is water.   The adsorption heat pump according to any one of claims 1 to 11, wherein the adsorbent includes at least one selected from the group consisting of activated carbon, mesoporous silica, zeolite, silica gel, and clay mineral.   The adsorption heat pump according to any one of claims 1 to 12, wherein the heat storage reactor includes at least one selected from a metal oxide and a metal chloride as the chemical heat storage material.   The adsorption type according to claim 13, wherein the chemical heat storage material is selected from the group consisting of oxides and chlorides of alkali metals, oxides and chlorides of alkaline earth metals, and oxides and chlorides of transition metals. heat pump.   The adsorption heat pump according to any one of claims 1 to 12, wherein the fluid is water, and the chemical heat storage material that fixes water is selected from calcium oxide, magnesium oxide, and barium oxide.

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