JP2015124931A - Heat storage management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat storage management system that is free from mixing of air or water, which may cause a heat medium to deteriorate, into a heat medium flow passage in respective stages of heat accumulation in a heat accumulation container, storage and transportation of the heat accumulation container, and heat dissipation from the heat storage container, and secures wide temperature ranges of heat accumulation temperature and heat dissipation temperature and also performs efficient heat storage and heat transportation.SOLUTION: A chemical heat accumulation material is subjected to a dehydration reaction by supplying heat of heat accumulation/dissipation facilities thereto so as to accumulate heat in a detachable heat accumulation container, which is mounted on the same or different heat accumulation/dissipation facilities so as to dissipate and use the heat accumulated in the chemical heat accumulation material through a hydration reaction of the chemical heat accumulation material. When a heat medium flow passage of those heat accumulation/dissipation facilities and a heat medium flow passage of the detachable heat accumulation container are linked to each other, an air discharging operation to discharge air, water, etc., remaining at a piping connection part between those heat medium flow passages is carried out, and when those heat medium flow passages are unlinked from each other, a liquid discharging operation to discharge the heat medium remaining at the piping connection part between those heat medium flow passage is carried out.

Description

  The present invention relates to a heat storage management system in which heat energy such as exhaust heat released to the environment is stored in a detachable heat storage container, and the detachable heat storage container is stored or transferred to a place where heat energy is required and used. is there.

  In recent years, issues such as depletion of fossil fuels, departure from dependence on nuclear power, or destruction of the natural environment and global warming have been taken up, and interest in technologies that effectively use thermal energy released to the environment has increased. Yes. In particular, high-temperature thermal energy released from garbage incineration facilities, power plants, steelworks, various factories, etc. is released into the environment as a large amount of waste heat without being used. Various heat storage technologies have been studied for the purpose of recovering and effectively using the thermal energy released to these environments.

  In general, heat storage technology is classified into two types: direct heat storage using thermal energy such as sensible heat and latent heat of materials, and indirect heat storage using chemical energy. Sensible heat storage in direct heat storage is a method of storing thermal energy in the form of an increase in the temperature of a substance, and is a preferable method from the viewpoint of economy such as ease of handling the heat storage material and simplicity of the apparatus. However, there is a problem that the heat storage density of the substance is small, and heat loss is large in long-distance transfer and long-term heat storage. In addition, latent heat storage in direct heat storage is a method of storing thermal energy in the form of phase changes such as substance dissolution, solidification, evaporation, condensation, sublimation, etc., and has a higher heat storage density than sensible heat storage, and heat storage and heat dissipation. The temperature of is constant. However, even in latent heat storage, there is a problem that heat loss is large in long-distance transfer and long-term heat storage.

  On the other hand, chemical heat storage in indirect heat storage is a method of storing heat energy in the form of chemical reactions such as heat of adsorption / desorption of substances, heat of fusion, heat of dilution, etc., and the heat storage density is much larger than sensible heat storage and latent heat storage. Become. Moreover, if the substance before and after the chemical reaction is stable, there is almost no heat dissipation loss, and no heat loss occurs during long-distance transfer or long-term heat storage. Furthermore, chemical heat storage also has a chemical heat pump function that can release thermal energy at a temperature different from the heat storage temperature, and in some cases higher than the heat storage temperature. Therefore, chemical heat storage is suitable as a heat storage management system because it can convert thermal energy into a chemical substance and store it for a long time or stably transfer it to a remote place.

  However, in the development and practical application of a heat storage management system, many cases are due to latent heat storage. For example, in the thermal energy supply method according to Patent Document 1 below, the thermal energy is stored in a state where thermal energy is stored in a main thermal storage unit that houses the thermal storage material, but the thermal storage material used for this is a latent heat storage material. The heat storage capsule filled is used. In addition, in the heat storage unit according to Patent Document 2 below, the heat storage material and the heat exchange medium that exchanges heat by direct contact with the heat storage material are stored in a state where heat is stored in the heat storage container. Although it is to be transferred, a latent heat storage material is also used as this heat storage material.

JP 2004-316958 A JP 2005-188916 A

  The heat storage management system using these latent heat storage materials transfers relatively low-temperature heat energy at around 100 ° C. or lower using simple equipment at a short distance. However, as mentioned above, the use of latent heat storage materials has the problem of large heat loss in long-distance transfer and long-term heat storage, and is released from waste incineration facilities, power plants, steelworks, various factories, etc. There is a limit to the effective use of the large amount of waste heat that is released to the environment without being used. In addition, the development of a heat storage management system using chemical heat storage is also desired in order to efficiently use high-temperature waste heat of several hundred degrees that has been difficult to use.

  Therefore, in order to efficiently operate a heat storage management system using chemical heat storage, a chemical heat storage material and a heat exchanger are accommodated in a heat storage container, and a heat medium of the heat exchanger is a heat storage container and a heat supply facility (heat source unit) or heat. It is considered that a method of transferring thermal energy between the chemical heat storage material and the external environment by circulating between the demand facilities (heat utilization section) is desirable.

  In particular, in heat medium that exchanges heat with waste heat from waste incineration facilities, power plants, steelworks, etc. that are discharged at high temperatures, and heat medium that is used as a heat pump that changes heat storage temperature and heat radiation temperature. In addition, a heat medium that maintains a liquid state in a wide temperature range including a high temperature range and that can exhibit an efficient heat medium function must be employed. As such a heat medium, for example, a silicone oil-based heat medium is used. When these heat mediums are used at a high temperature, if the oxygen or moisture in the air is mixed in, the heat medium deteriorates and the heat medium functions. There was a problem that decreased.

  In particular, in the heat storage management system, when storing or radiating heat, the heat medium flow path of the heat storage container is connected to the heat medium flow path of the heat supply facility or the heat demand facility to circulate the heat medium. On the other hand, when storing or transferring the heat storage container, it is necessary to stop the circulation of the heat medium and disconnect the heat medium flow path of the heat storage container from the heat supply flow path of the heat supply facility or the heat demand facility. That is, when the heat medium flow path is disconnected, deterioration factors (air or moisture) of the heat medium enter the heat medium flow path, or these heat medium flow paths that enter the heat medium flow path when the heat medium flow path is connected. The deterioration factor is mixed into the heat medium. In this way, when the deterioration factor of the heat medium enters the heat medium flow path and enters the heat medium, there is a problem that the heat medium deteriorates in the heat storage stage or the heat release stage of the chemical heat storage material and the heat medium function is lowered. .

  In view of the above, the present invention addresses the above, and causes deterioration of the heat medium in the heat medium flow path at each stage of heat storage in the heat storage container, storage and transfer of the heat storage container, and heat radiation from the heat storage container. It is an object of the present invention to provide a heat storage management system that can ensure efficient heat storage and heat transfer while ensuring a wide temperature range of heat storage temperature and heat radiation temperature without being mixed with air or moisture.

  In solving the above-mentioned problems, the present inventors, as a result of diligent research, have made a piping for the heat medium flow path between the heat storage container and the heat supply facility or the heat demand facility (hereinafter also referred to as “storage heat dissipation facility”). A piping structure capable of appropriately performing the draining operation and the exhausting operation of the connecting portion has been studied, and the present invention has been completed.

That is, the heat storage management system according to the present invention is as described in claim 1.
1 or 2 or more provided with the 1st heat exchanger (12, 22) provided with the 1st heat-medium flow path (17, 27) which circulates the heat medium for heat exchange with a heat supply part or a heat supply-and-demand part. Heat storage and dissipation facilities (10, 20);
A chemical heat storage material (31) that stores heat by a dehydration reaction and dissipates heat by a hydration reaction is enclosed, and a second heat medium flow path (33) that circulates a heat medium for heat exchange with the chemical heat storage material is provided. A detachable heat storage container (30) having two heat exchangers (32),
In detaching and storing or transferring the detachable heat storage container from the heat storage facility, and using the amount of heat stored by attaching the detachable heat storage container to the same or different heat storage facility,
In the stage of storing heat in the detachable heat storage container, the first heat medium flow path and the second heat medium flow path are communicated, and the heat medium is circulated between the heat medium flow paths to thereby store the heat storage. Supply the amount of heat generated in the heat dissipation facility to the chemical heat storage material to cause a dehydration reaction and store heat in the removable heat storage container,
In the management stage of storing or transferring the detachable heat storage container, the detachable heat storage container is stored or transferred in a state in which the second heat medium flow path is released from the first heat medium flow path.
In the heat release stage from the detachable heat storage container, the second heat medium flow path and the first heat medium flow path are communicated, and the heat medium is circulated between the heat medium flow paths, thereby A heat storage management system in which the amount of heat stored in the heat storage material is dissipated by the hydration reaction of the chemical heat storage material and used in the heat storage and heat dissipation facility,
When the second heat medium flow path communicates with the first heat medium flow path, a connection operation for connecting the heat medium flow paths is performed, and the residual gas remaining in the pipe connection portion after the connection operation Exhaust operation is performed, and after the exhaust operation, the second heat medium flow path is communicated with the first heat medium flow path, and the communication operation for filling the pipe connection portion with the heat medium is performed.
When releasing the communication of the second heat medium flow path from the first heat medium flow path, a communication release operation for releasing the communication of the second heat medium flow path from the first heat medium flow path is performed. A drainage operation for removing the heat medium remaining in the pipe connection portion after the operation is performed, and a connection release operation for releasing the connection between the heat medium flow paths is performed after the drainage operation is performed. And

Moreover, according to the description of Claim 2, this invention is the thermal storage management system of Claim 1,
The heat storage / radiation facility consists of a first heat storage / radiation facility (10) for supplying heat and a second heat storage / radiation facility (20) for heat demand,
In using the amount of heat generated in the first heat storage / dissipation facility by storing or transferring the removable heat storage container in the second heat storage / dissipation facility,
In the management stage, the detachable heat storage in a state where the second heat medium flow passage is released from the first heat medium flow passage of the first heat storage / radiation facility and the first heat medium flow passage of the second heat storage / radiation facility. The container is stored or transported.

Moreover, according to the description of Claim 3, this invention WHEREIN: In the thermal storage management system of Claim 1 or 2,
In the management step, the removable heat storage container is stored or transported in a state in which the second heat medium flow path is filled with a heat medium.

Moreover, according to the description of Claim 4, this invention WHEREIN: In the thermal storage management system of Claim 1 or 2,
In order to store or transfer the removable heat storage container in a state where the heat medium in the second heat medium flow path is excluded in the management stage,
While eliminating the heat medium remaining in both the pipe connection portion and the second heat medium flow path in the drain operation,
After removing the residual gas remaining in the pipe connection portion and the second heat medium flow path in the exhaust operation, a heat medium is applied to both the pipe connection portion and the second heat medium flow path in the communication operation. It is characterized by filling.

Moreover, according to the description of Claim 5, this invention WHEREIN: In the thermal storage management system as described in any one of Claims 1-4,
While part of the heat medium is vaporized by depressurizing both the pipe connection part or the pipe connection part and the second heat medium flow path in the drainage operation, while removing the liquid heat medium,
In the exhaust operation, the pipe connection part or the heat medium remaining in both the pipe connection part and the second heat medium flow path is vaporized by the amount of heat supplied from the chemical heat storage material through the second heat exchanger. By doing so, the residual gas remaining in both the pipe connection part or the pipe connection part and the second heat medium flow path is excluded.

Further, according to the sixth aspect of the present invention, in the heat storage management system according to the fifth aspect,
The amount of heat supplied from the chemical heat storage material via the second heat exchanger uses sensible heat in the dehydration reaction of the chemical heat storage material or reaction heat in the hydration reaction of the chemical heat storage material. And

Moreover, according to the description of Claim 7, this invention WHEREIN: In the thermal storage management system as described in any one of Claims 1-4,
By supplying the low boiling point component that the heat medium contains or the heat medium is partially decomposed in the drain operation, the heat medium is removed from both the pipe connection part or the pipe connection part and the second heat medium flow path. While
The residual gas that remains in the pipe connection part or both the pipe connection part and the second heat medium flow path by supplying a low-boiling-point component that the heat medium contains or partly decomposes in the exhaust operation. It is characterized by eliminating.

Moreover, according to the description of Claim 8, this invention WHEREIN: In the thermal storage management system as described in any one of Claims 1-4,
While removing the heat medium from both the pipe connection part or the pipe connection part and the second heat medium flow path by supplying an inert gas in the drain operation,
In the exhaust operation, by reducing the pressure in both the pipe connection part or the pipe connection part and the second heat medium flow path, both the pipe connection part or the pipe connection part and the second heat medium flow path are provided. A residual inert gas and the residual gas are excluded.

  According to the structure of the said Claim 1, the thermal storage management system has 1 or 2 or more thermal storage facilities and a detachable heat storage container, and it stores and transfers heat by storing or transferring the detachable heat storage container. The amount of heat generated in the equipment can be used effectively in the same or different heat storage and heat radiation equipment.

  The removable heat storage container encloses a chemical heat storage material inside, and stores the amount of heat generated in the heat storage and heat dissipation equipment by the dehydration reaction of this chemical heat storage material, while the amount of heat stored by the hydration reaction of the chemical heat storage material Radiate heat and use it with the same or different heat storage facilities. Thus, since the heat storage management system employs the chemical heat storage material, it is possible to secure a wide temperature range of the heat storage temperature and the heat radiation temperature, and it can be used as a heat pump in which the heat storage temperature and the heat radiation temperature are changed.

  The heat storage facility and the detachable heat storage container each include a heat exchanger having a heat medium flow path, and heat storage and heat dissipation can be efficiently performed by circulating the heat medium between the heat medium flow paths. it can.

  In the heat storage management system according to claim 1, the first heat medium flow path of the first heat exchanger and the detachable heat storage container provided in the heat storage / radiation facility are provided in the heat storage stage of the detachable heat storage container. The heat medium is circulated between these heat medium flow paths by communicating with the second heat medium flow paths of the two heat exchangers. Due to the circulation of the heat medium, the amount of heat generated in the heat storage / radiation facility can be supplied to the chemical heat storage material to cause a dehydration reaction, and heat can be efficiently stored in the removable heat storage container.

  On the other hand, in the heat storage management system according to claim 1, in the heat radiation stage from the removable heat storage container to the same or different heat storage and heat dissipation facility, the second heat medium flow path of the second heat exchanger included in the removable heat storage container; The heat medium is circulated between these heat medium flow paths by communicating with the first heat medium flow path of the first heat exchanger included in the heat storage and heat dissipation facility. Due to the circulation of the heat medium, the amount of heat stored in the detachable heat storage container can be dissipated by the hydration reaction of the chemical heat storage material, and can be efficiently used in the heat storage and heat dissipation equipment.

  Further, the heat storage management system according to claim 1 is the second heat medium of the second heat exchanger provided in the removable heat storage container in the management stage in which the removable heat storage container is separated from the heat storage facility and stored or transferred. The flow path is stored or transferred in a state in which communication is released from the first heat medium flow path of the first heat exchanger provided in the heat storage and heat radiation facility.

  In this management stage, when the second heat medium flow path of the detachable heat storage container is communicated with or released from the first heat medium flow path of the heat storage / radiation facility, in these heat medium flow paths or in these connection pipes When air or moisture enters, and these enter into the heat medium as residual gas, the heat medium is deteriorated and the function of the heat medium is lowered.

  Therefore, in the heat storage management system according to claim 1, when communicating between the heat medium flow paths, first, a connection operation for connecting the pipes between the heat medium flow paths is performed, and after this connection operation, the remaining in the pipe connection portion. Exhaust operation to eliminate residual gas. Next, after the exhaust operation, a communication operation is performed in which the second heat medium passage is communicated with the first heat medium passage to fill the pipe connection portion with the heat medium. This makes it possible to efficiently eliminate the residual gas that has entered the pipe connection part in the management stage, and to prevent the heat medium from deteriorating in the heat storage stage and the heat release stage and to perform efficient heat storage or heat transfer. it can.

  On the other hand, when releasing the communication between the heat medium flow paths, first, a communication release operation for releasing the communication of the second heat medium flow path from the first heat medium flow path is performed. Drain operation to remove the remaining heat medium. Next, after this drainage operation is performed, a connection release operation for releasing the connection between the heat medium flow paths is performed. Thereby, it is possible to prevent the heat medium from being deteriorated in the heat storage stage and the heat release stage and perform efficient heat storage or heat transfer.

  Therefore, according to the structure of the said Claim 1, it becomes a deterioration factor of a thermal medium in a thermal-medium flow path in each step of the thermal storage to a thermal storage container, the storage and transfer of a thermal storage container, and the thermal radiation from a thermal storage container. It is possible to provide a heat storage management system that can ensure efficient heat storage and heat transfer while ensuring a wide temperature range of the heat storage temperature and the heat radiation temperature without mixing air or moisture.

  Moreover, according to the structure of the said Claim 2, the thermal storage management system has two or more thermal storage / radiation equipment, and the heat amount which generate | occur | produces in the 1st thermal storage / radiation equipment which performs heat supply carries out a heat demand. 2 Use with heat storage and heat dissipation equipment. Therefore, in the heat storage management system according to claim 2, the first heat storage facility has the second heat medium flow path of the second heat exchanger provided in the removable heat storage container in the management stage. The removable heat storage container is stored or transported in a state where communication is released from the first heat medium flow path of the first heat exchanger provided in the first heat medium flow path or the second heat storage / radiation facility. Therefore, also in the configuration of the second aspect, the same effect as that of the first aspect can be achieved.

  Moreover, according to the structure of the said Claim 3, a thermal storage management system is the 2nd heat-medium flow of the 2nd heat exchanger with which a removable heat storage container comprises in the management stage which stores or transfers a removable heat storage container. Store or transfer in a state filled with a heat medium. Thereby, the sensible heat of the heat medium in the second heat medium flow path can also be used. Therefore, also in the structure of the said Claim 3, the effect similar to Claim 1 or 2 can be achieved further.

  Moreover, according to the structure of the said Claim 4, a thermal storage management system is the 2nd heat-medium flow of the 2nd heat exchanger with which a removable heat storage container comprises in the management stage which stores or transfers a removable heat storage container. Store or transfer with the heat medium removed from the path. Therefore, the heat storage management system according to claim 4 excludes the heat medium remaining in both the pipe connection portion and the second heat medium flow path in the drain operation. This reduces the weight of the detachable heat storage container in the management stage, improves the heat storage density of the detachable heat storage container, and reduces the transfer cost even when transporting to a remote location. Transfer can be performed.

  On the other hand, in the heat storage management system, it is conceivable that air, moisture, or the like intrudes into the pipe connection part, or in some cases, the second heat medium flow path. Therefore, after removing residual gas such as air or moisture remaining in the pipe connection portion and the second heat medium flow path in the exhaust operation, the heat medium is provided in both the pipe connection portion and the second heat medium flow path in the communication operation. Fill. Thereby, deterioration of the heat medium circulating in the heat medium flow path during the heat storage stage and the heat release stage can be prevented, and efficient heat storage or heat transfer can be performed. Therefore, also in the structure of the said Claim 4, the effect similar to Claim 1 or 2 can be achieved further.

  Moreover, according to the structure of the said Claim 5, when a thermal storage management system excludes a thermal medium from both the piping connection part or a piping connection part, and a 2nd heat-medium flow path in drainage operation, it is piping. You may make it pressure-reducing both a connection part or a piping connection part, and the inside of a 2nd heat-medium flow path. Thereby, the heat medium remaining in both the pipe connection part or the pipe connection part and the second heat medium flow path can be efficiently excluded, and the pipe connection part or the pipe connection part and the second heat medium flow path can be eliminated. It is possible to suppress the intrusion of air or moisture into the inside.

  On the other hand, the heat storage management system according to claim 5 is configured such that the amount of heat supplied from the chemical heat storage material through the second heat exchanger in the exhaust operation causes the pipe connection portion or the pipe connection portion and the second heat medium flow path to The heat medium remaining in both may be vaporized. This effectively eliminates the residual gas remaining in both the pipe connection part or the pipe connection part and the second heat medium flow path, and prevents deterioration of the heat medium in the heat storage stage and the heat release stage. Efficient heat storage or heat transfer can be performed. Therefore, also in the structure of the said Claim 5, the effect similar to any one of Claims 1-4 can be achieved further.

  Moreover, according to the structure of the said Claim 6, in the thermal storage management system, the calorie | heat amount supplied via a 2nd heat exchanger from a chemical thermal storage material is the sensible heat in a dehydration reaction of a chemical thermal storage material, or chemical You may make it utilize the heat of reaction in the hydration reaction of a thermal storage material. Thus, the heat medium remaining in both the pipe connection part or the pipe connection part and the second heat medium flow path is vaporized without supplying other heat quantity from the outside, and the pipe connection part or the pipe connection part and Residual gas remaining in both of the second heat medium flow paths can be efficiently eliminated. Therefore, also in the configuration according to the sixth aspect, the same effect as that of the fifth aspect can be further achieved.

  Moreover, according to the structure of the said Claim 7, when a thermal storage management system excludes a heat carrier from both a piping connection part or a piping connection part, and a 2nd heat-medium flow path in drainage operation, it is piping. You may make it supply the low boiling-point component which a heat medium contains or a heat medium partially decomposed | disassembled to both a connection part or a piping connection part, and a 2nd heat-medium flow path. Thus, the low boiling point component can efficiently exclude the pipe connection part or the heat medium remaining in both the pipe connection part and the second heat medium flow path, and the pipe connection part or the pipe connection part and the second Intrusion of air or moisture into both of the heat medium channels can be further suppressed.

  On the other hand, the heat storage management system according to claim 7 has a low boiling point in which the heat medium is contained in the pipe connection part or the pipe connection part and the second heat medium flow path even in the exhaust operation or the heat medium is partially decomposed. Ingredients may be supplied. This effectively eliminates the residual gas remaining in both the pipe connection part or the pipe connection part and the second heat medium flow path, and prevents deterioration of the heat medium in the heat storage stage and the heat release stage. Efficient heat storage or heat transfer can be performed. Therefore, also in the structure of the said Claim 7, the effect similar to any one of Claims 1-4 can be achieved further.

  Moreover, according to the structure of the said Claim 8, when a thermal storage management system excludes a heat carrier from both a piping connection part or a piping connection part, and a 2nd heat-medium flow path in drainage operation, it is piping. You may make it supply an inert gas to both a connection part or a piping connection part, and a 2nd heat-medium flow path. This inert gas does not deteriorate the heat medium. Thus, the inert gas can efficiently exclude the pipe connection part or the heat medium remaining in both the pipe connection part and the second heat medium flow path, and the pipe connection part or the pipe connection part and the second Intrusion of air or moisture into both of the heat medium channels can be further suppressed.

  On the other hand, in the heat storage management system according to claim 8, the pipe connection part or the pipe connection part and the second heat medium are reduced by depressurizing both the pipe connection part or the pipe connection part and the second heat medium flow path in the exhaust operation. You may make it exclude the inert gas with which both in the flow path were filled, and the mixed residual gas. As a result, the inert gas and the mixed residual gas filled in both the pipe connection part or the pipe connection part and the second heat medium flow path can be efficiently removed, and the heat in the heat storage stage and the heat release stage can be eliminated. It is possible to prevent deterioration of the medium and perform efficient heat storage or heat transfer. Therefore, also in the structure of the said Claim 8, the effect similar to any one of Claims 1-4 can be achieved further.

It is a conceptual diagram which shows embodiment regarding the heat transfer of the thermal storage management system which concerns on this invention. It is a conceptual diagram which shows other embodiment regarding the thermal storage of the thermal storage management system which concerns on this invention. It is a composition schematic diagram showing the relation between a removable heat storage container and heat supply equipment (or heat demand equipment) in a 1st embodiment. It is a composition schematic diagram showing connection between heat carrier channels in a 1st embodiment. It is a pressure-temperature diagram regarding the phase equilibrium of dehydration reaction and hydration reaction of calcium hydroxide heat storage material. It is the structure schematic which shows the relationship between the detachable heat storage container and heat supply equipment (or heat demand equipment) in 2nd Embodiment. It is a composition schematic diagram showing connection between heat carrier channels in a 2nd embodiment. It is the structure schematic which shows the connection between the heat-medium flow paths in 3rd Embodiment.

  In the present invention, the heat storage / dissipation facility is a facility, device or facility for supplying heat by releasing heat to the heat storage container, a facility, device or facility for receiving heat supply from the heat storage vessel, or a heat supply. It shall mean either equipment, equipment or facility that provides both supply and heat demand. Therefore, in the present invention, an equipment, an apparatus, or a facility that performs only heat supply may be referred to as heat supply equipment. In addition, a facility, an apparatus, or a facility that performs only the heat demand may be referred to as a heat demand facility.

  In the present invention, the chemical heat storage material is not particularly limited, and includes all substances that store heat energy in the form of a chemical reaction such as heat of adsorption / desorption, heat of fusion, and heat of dilution. In the present invention, among these substances, it is particularly preferable to use a substance that generates endotherm or heat due to dehydration reaction or hydration reaction.

For example, calcium hydroxide heat storage material (reaction of CaO and Ca (OH) ₂ ), barium hydroxide heat storage material (reaction of BaO and Ba (OH) ₂ ), magnesium hydroxide heat storage material (MgO and Mg (OH) ) ₂ reaction) reaction of oxides and hydroxides of alkaline earth metals such as, and nickel hydroxide-based heat storage material (NiO and Ni (OH) ₂ reaction), cobalt hydroxide (II) systems the heat storage material (Reaction of CoO and Co (OH) ₂ ), Cobalt hydroxide (III) heat storage material (Reaction of Co ₂ O ₃ and Co (OH) ₃ ), Copper hydroxide (II) heat storage material (CuO and Cu ( OH) ₂ reaction) transition metal oxides and hydroxides of the reaction, such as, as well as, an oxide of typical metal such as aluminum hydroxide-based heat storage material (reaction of Al ₂ O ₃ and Al (OH) ₃₎ Examples include hydroxide reactions. Any one of these reactions may be employed, or a combination of two or more may be employed.

Among these reactions, the calcium hydroxide-based heat storage material (reaction of CaO and Ca (OH) ₂ ) can stably perform repeated operations of heat storage and heat dissipation at high temperatures exceeding 400 ° C. It is suitable as a chemical heat storage material in the invention. On the other hand, since the magnesium-based heat storage material (reaction of MgO and Mg (OH) ₂ ) can store and release heat at a lower temperature than the calcium-based heat storage material, this heat storage material is also suitable as the chemical heat storage material in the present invention. It is.

  Moreover, in this invention, it does not specifically limit about the composition of a chemical heat storage material, It may consist only of said each chemical heat storage material, or the composite_body | complex of a chemical heat storage material and another component may be sufficient. Here, as other components, for example, clay minerals such as sepiolite, palygorskite and bentonite, layered double hydroxides such as hydrotalcite and hydrocalumite, heat transfer body having a hydroxyl group or oxide film on the surface, clay , Carbon, copper (Cu), and the like, and a cage-like substance having voids that can hold a chemical heat storage material therein, and combinations of the above substances.

  Further, in the present invention, the structure and shape of the chemical heat storage material are not particularly limited, and a powder obtained by press molding the powder containing each chemical heat storage material, a powder containing the chemical heat storage material, or It may be a porous sintered body obtained by heating the molded body and partially sintering the particles.

  In the present invention, the heat medium is a substance that becomes a medium for transferring heat by exchanging heat with the chemical heat storage material, and in particular indirectly with the chemical heat storage material through a heat exchanger. A substance that comes into contact and heat transfer. As these heat media, known substances can be used in any composition. Examples include various silicone oils, saturated hydrocarbon oils such as liquid paraffin, aromatic hydrocarbon oils such as halogenated biphenyls, air, nitrogen, argon, water, water vapor, and aqueous glycol solutions. Among these, in the present invention, it is preferable to employ a heat-resistant silicone oil-based heat medium as a heat medium that stably exchanges heat with a chemical heat storage material that reacts at a high temperature.

  In the present invention, heat at a high temperature of several hundred degrees may be exchanged. In this case, deterioration of the heat medium due to high temperature becomes a problem. For example, when a silicone oil-based heat medium is used, modification (polymerization by dehydration polymerization with oxygen) or decomposition (depolymerization or reduction of molecular weight by generation of cyclic siloxane) due to the incorporation of oxygen or moisture in the air May occur.

  Therefore, it is necessary to manage such as adopting an inert gas in the expansion tank when the heat medium is used. Further, in the present invention, as described later, the removable heat storage container is separated from the heat supply facility (or heat demand facility) and transferred. At the time of the separation or the transfer stage, if oxygen or moisture in the air is mixed into the heat medium or the heat medium flow path, the heat medium deteriorates and a stable heat storage management system cannot be maintained. The present invention has been made with particular attention to the deterioration of the heat medium.

  Hereinafter, each embodiment of the heat storage management system according to the present invention will be described with reference to the drawings. In addition, this invention is not limited to each embodiment shown below.

  FIG. 1 is a conceptual diagram showing an embodiment relating to heat transfer of a heat storage management system according to the present invention. In the heat transfer of FIG. 1, first, waste heat released by the heat supply facility 10 is stored in the detachable heat storage container 30. Next, this detachable heat storage container 30 is transferred to the heat demand facility 20 located at a position separated from the heat supply facility 10. Further, the heat stored in the detachable heat storage container 30 is radiated and supplied to the heat demand facility 20.

  On the other hand, FIG. 2 is a conceptual diagram showing another embodiment relating to heat storage of the heat storage management system according to the present invention. In the heat storage of FIG. 2, a heat storage / radiation facility (which is a heat supply facility and a heat demand facility) 10 which releases heat and supplies heat and also receives heat as necessary to supply heat, A storage A for storing a plurality of detachable heat storage containers 30 is installed. In the heat storage of FIG. 2, first, the amount of heat released by the heat storage / radiation facility 10 is stored in the removable heat storage container 30. Next, the detachable heat storage container 30 is detached from the heat storage / radiation facility 10 and stored in the storage A. In this storage A, a plurality of detachable heat storage containers 30 after heat storage are stored.

  Further, when the heat storage / radiation facility 10 needs to supply heat, the removable heat storage container 30 taken out from the storage A is attached to the heat storage / radiation facility 10 to radiate heat, and the heat storage / radiation facility 10 is supplied with heat. Such heat storage can be utilized as a heat storage management system in which the heat storage and radiation facility 10 is used as a heat supply station.

First embodiment:
The first embodiment is an embodiment that performs heat transfer (see FIG. 1). The heat storage management system according to the first embodiment stores, in the detachable heat storage container 30, waste heat having a high temperature exceeding 400 ° C. (in this first embodiment, 426 ° C.) released by the heat supply facility 10. The detachable heat storage container 30 is transferred to the heat demand facility 20 to dissipate the heat quantity Q stored, and is supplied to the heat demand facility 20.

  In the first embodiment, when the heat medium flow path is disconnected or the heat medium flow path is connected between the detachable heat storage container 30 and the heat supply facility 10 or the heat demand facility 20, the pipe connection portion As a method of removing air or moisture that enters the heat medium flow path from the heat medium, the pressure at the time of vaporization of the heat medium in the heat exchanger is used (details will be described later).

  FIG. 3 is a schematic configuration diagram illustrating a relationship between the detachable heat storage container 30 and the heat supply facility 10 (or the heat demand facility 20) in the first embodiment. 3, in the heat storage stage from the heat supply facility 10 to the detachable heat storage container 30 (hereinafter simply referred to as “heat storage stage”), FIG. 3 shows the relationship between the detachable heat storage container 30 and the heat supply equipment 10. Yes. On the other hand, in the heat radiation stage (hereinafter simply referred to as “heat radiation stage”) from the detachable heat storage container 30 to the heat demand facility 20, FIG. 3 shows the relationship between the detachable heat storage container 30 and the heat demand equipment 20 (reference numerals in parentheses). Represents the heat release stage).

  In FIG. 3, the removable heat storage container 30 includes a heat exchanger 32 for enclosing a chemical heat storage material 31 therein and exchanging heat with the chemical heat storage material 31. The heat exchanger 32 supplies a heat quantity Q to the chemical heat storage material 31 in the heat storage stage, and a liquid heat medium for receiving the heat quantity Q from the chemical heat storage material 31 in the heat release stage (in the first embodiment). Is provided with a heat medium passage 33 through which a silicone oil-based heat medium is circulated.

In the first embodiment, a calcium hydroxide heat storage material is employed as the chemical heat storage material 31 in order to effectively use high-temperature waste heat exceeding 400 ° C. released by the heat supply facility 10. In the calcium hydroxide heat storage material, calcium hydroxide (Ca (OH) ₂ ) changes to calcium oxide (CaO) by a dehydration reaction when supplied with a heat quantity Q. This reaction is an endothermic reaction, and the following formula (1),
Ca (OH) ₂ → CaO + H ₂ O: ΔH = −63.6 kJ / mol (1)
As shown in Figure 3, it appears as a heat storage effect.

On the other hand, when calcium oxide (CaO) is supplied with water, it becomes calcium hydroxide (Ca (OH) ₂ ) by a hydration reaction. This reaction is an exothermic reaction, and the following formula (2),
CaO + H ₂ O → Ca (OH) ₂ : ΔH = + 63.6 kJ / mol (2)
As shown in FIG.

  As described above, in the first embodiment, by adopting the calcium hydroxide heat storage material, it is possible to reversibly and efficiently use high-temperature waste heat.

  Here, when adopting a calcium hydroxide heat storage material, water is involved as a dehydration reaction and a hydration reaction (see the above formulas (1) and (2)). In the first embodiment, a water vapor sorption / desorption method is adopted in which the structure of the apparatus is relatively simple and water can be supplied to or removed from the chemical heat storage material 31 uniformly. In this method, it is necessary to exclude water vapor generated by the dehydration reaction from the chemical heat storage material 31. On the other hand, water vapor necessary for the hydration reaction needs to be supplied to the chemical heat storage material 31. Therefore, in the detachable heat storage container 30 of the first embodiment, an evaporative condenser (described later) that exchanges water vapor with the chemical heat storage material 31 is employed.

  Moreover, in FIG. 3, the heat supply equipment 10 in the heat storage stage (heat demand equipment 20 in the heat radiation stage) includes a heat supply section 11 (heat demand equipment 21 in the heat demand equipment) and a heat exchanger 12 (22 in the heat demand equipment). ), Evaporative condenser 13 (23 for heat demand equipment), reaction water tank 14 (24 for heat demand equipment), expansion tank 15 (25 for heat demand equipment) and recovery tank 16 (26 for heat demand equipment). Yes.

  In the heat storage stage in the heat supply facility 10, the heat supply unit 11 releases the amount of heat Q supplied to the chemical heat storage material 31. On the other hand, in the heat radiation stage in the heat demand facility 20, the heat demand section 21 demands the heat quantity Q released by the chemical heat storage material 31.

  The heat exchanger 12 (22) is for exchanging heat with the heat supply unit 11 (or the heat demand unit 21), and the heat exchanger 12 (22) receives heat from the heat supply unit 11 in the heat storage stage. A heat medium flow path 17 (27 in the heat demand facility) is provided in which a liquid heat medium (silicone oil-based heat medium) for receiving Q and supplying a heat quantity Q to the heat demanding part 21 in the heat radiation stage circulates. It has been. The heat medium flow path 17 (27) is connected and communicated with the heat medium flow path 33 of the detachable heat storage container 30 by the two flow path connection portions 40 and 50, and a liquid heat medium is formed between the two heat medium flow paths. Circulate (details will be described later). The means for circulating the heat medium is not particularly limited. For example, it is preferable to use a heat medium circulation pump (not shown) such as an overflow turbine pump or a canned motor pump.

  The evaporative condenser 13 (23) condenses water vapor generated during the dehydration reaction of the chemical heat storage material 31 enclosed in the removable heat storage container 30, and reacts during the hydration reaction of the chemical heat storage material 31. Water is evaporated to supply water vapor necessary for the hydration reaction. The evaporative condenser 13 (23) exchanges water vapor with the chemical heat storage material 31 in the detachable heat storage container 30 via the water vapor flow path 13a (23a for heat demand equipment). In this 1st Embodiment, it does not specifically limit regarding the structure and capacity | capacitance of this evaporative condenser 13 (23), According to the kind and quantity of corresponding chemical thermal storage material 31, thermal storage temperature, exothermic temperature, and other conditions. What is necessary is just to select suitably.

  The reaction water tank 14 (24) separates and collects the condensed water condensed in the evaporative condenser 13 (23) during the dehydration reaction of the chemical heat storage material 31, and also performs steaming during the hydration reaction of the chemical heat storage material 31. In order to generate the reaction water, the reaction water is supplied to the evaporative condenser 13 (23). This reaction water tank 14 (24) exchanges reaction water with the evaporative condenser 13 (23) via the reaction water flow path 14a (24a in the heat demand facility). In the first embodiment, the structure and capacity of the reaction water tank 14 (24) are not particularly limited, and may be appropriately selected depending on the capacity of the corresponding evaporation condenser 13 (23) and other conditions. . In addition, by employ | adopting the reaction water tank 14 (24), the condensed water collect | recovered in the case of a dehydration reaction can be reused as the reaction water supplied to the evaporative condenser 13 (23).

  In the first embodiment, the evaporating condenser 13 (23) and the reaction water tank 14 (24) are included in the heat supply facility 10 (or the heat demand facility 20). Therefore, in the transfer stage in the first embodiment, the evaporative condenser 13 (23) and the reaction water tank 14 (24) are separated from the removable heat storage container 30 and only the removable heat storage container 30 is transferred. On the other hand, the evaporative condenser 13 (23) and the reaction water tank 14 (24) may be transferred as a single unit without being separated from the detachable heat storage container 30.

  In the first embodiment, the connection and communication between the evaporation condenser 13 (23) and the removable heat storage container 30 when the evaporation condenser 13 (23) is separated from the removable heat storage container 30 and transferred. Is not particularly limited, and any method may be adopted.

  The expansion tank 15 (25) is provided in a flow path of the heat medium flow path 17 (27) included in the heat exchanger 12 (22), and a liquid heat medium circulating in the heat medium flow path 17 (27) is provided. It is provided to make the flow rate of the heat medium uniform by keeping the pressure in the heat medium flow path 17 (27) constant when expansion and contraction are repeated by heat exchange. The expansion tank 15 (25) separates the low boiling point component of the heat medium that has deteriorated due to the operation of the high-temperature heat medium from the heat medium flow path 17 (27).

  The recovery tank 16 (26) is connected to and communicated with the expansion tank 15 (25) via the recovery flow path 16a (26a in the heat demand facility), recovers an excess heat medium in the expansion tank 15 (25), Alternatively, the low boiling point component of the heat medium deteriorated by the high-temperature heat medium operation is recovered. Further, the recovery tank 16 (26) is guided to the flow path connecting portion 50 via the recovery flow path 16b (26b in the case of heat demand equipment), and is connected and communicated with the heat medium flow path 17 (27) (details will be described later). To do).

  3, the heat medium flow path 17 (27) of the heat supply facility 10 and the heat medium flow path 33 of the removable heat storage container 30 are connected and communicated by the flow path connection portions 40 and 50. The state will be described.

  FIG. 4 is a schematic configuration diagram illustrating the connection between the heat medium flow paths in the first embodiment. In the flow path connection unit 40, the heat medium flow path 17 (27) and the heat medium flow path 33 are connected and disconnected by the pipe joint 41. Here, the connection means that a pipe between two heat medium flow paths is connected, and does not mean that the heat medium circulates between the two heat medium flow paths. On the other hand, the disconnection means disconnection of the connection between the two heat medium flow paths.

  Further, a valve 42 is provided in the flow path of the heat medium flow path 17 (27) in the flow path connection portion 40, and the heat medium flow path 17 (27) is communicated before and after the valve 42 by opening and closing the valve 42. The communication is canceled. On the other hand, a valve 43 is provided between the heat exchanger 32 and the pipe joint 41 in the flow path of the heat medium flow path 33 of the detachable heat storage container 30, and the heat medium before and after the valve 43 is opened and closed. Communication / communication cancellation of the flow path 33 is performed. Here, “communication” means that the heat medium circulates between two heat medium flow paths. On the other hand, the release of communication means that the circulation of the heat medium between the two heat medium flow paths is interrupted so as not to flow.

  Further, the flow path of the heat medium flow path 17 (27) in the flow path connection section 40 is between the valve 42 and the pipe joint 41 via the recovery flow path 16b (26b) and the recovery tank 16 (26) (FIG. 4 is omitted). Further, a valve 44 is provided in the flow path of the recovery flow path 16b (26b) in the flow path connection section 40. By opening and closing the valve 44, the heat medium flow path 17 (27) and the recovery tank 16 (26) are connected. Communication / communication cancellation is performed.

  Next, in the flow path connection unit 50, the heat medium flow path 17 (27) and the heat medium flow path 33 are connected and disconnected by the pipe joint 51. Further, a valve 52 is provided in the flow path of the heat medium flow path 17 (27) in the flow path connection portion 50, and the heat medium flow path 17 (27) is communicated before and after the valve 52 by opening and closing the valve 52. The communication is canceled. On the other hand, a valve 53 is provided between the heat exchanger 32 and the pipe joint 51 in the flow path of the heat medium flow path 33 of the detachable heat storage container 30, and the heat medium before and after the valve 53 is opened and closed. Communication / communication cancellation of the flow path 33 is performed.

  Further, the flow path of the heat medium flow path 17 (27) in the flow path connection section 50 is between the valve 52 and the pipe joint 51 via the recovery flow path 16b (26b) and the recovery tank 16 (26) (FIG. 4 is omitted). Further, a valve 54 is provided in the flow path of the recovery flow path 16b (26b) in the flow path connection section 50. By opening and closing the valve 54, the heat medium flow path 17 (27) and the recovery tank 16 (26) are connected. Communication / communication cancellation is performed.

  Here, in the heat storage management system according to the first embodiment, the step of storing heat quantity Q generated from the heat supply facility 10 in the detachable heat storage container 30 (step 1), and the detachable heat storage container 30 after heat storage is heated. Step (step 2) for releasing communication / disconnecting from the supply facility 10, step (step 3) for transferring the detachable heat storage container 30 after heat storage to the heat demand facility 20, and a step for transferring the detachable heat storage container 30 after heat transfer to the heat demand facility Step of connecting / communication to 20 (step 4), step of radiating heat quantity Q from the removable heat storage container 30 after heat storage and supplying it to the heat demand facility 20 (step 5), heating the removable heat storage container 30 after heat dissipation Step of releasing communication / disconnection from demand facility 20 (step 6), step of transferring removable heat storage container 30 after heat dissipation to heat supply facility 10 (step 7), and heat of removable heat storage container 30 after transfer Supply Repeating a cycle composed each step of steps (step 8) to connect and communicate with the Bei 10. Hereinafter, these steps will be described.

≪Step 1≫
Step 1 is a step of storing heat quantity Q generated from the heat supply facility 10 in the detachable heat storage container 30. In this heat storage stage, the removable heat storage container 30 is incorporated into the heat supply facility 10 (see FIG. 3), and the heat medium flow path 33 of the removable heat storage container 30 is connected to the heat medium flow path 17 of the heat supply facility 10. The heat medium flow path 33 and the heat medium flow path 17 communicate with each other, and a liquid heat medium is circulated by the operation of a heat medium circulation pump (not shown) (see FIG. 4).

  In this heat storage stage, the heat medium flow path 33 and the heat medium flow path 17 are connected by the pipe joints 41 and 51. Further, the valves 43 and 53 of the heat medium flow path 33 and the valves 42 and 52 of the heat medium flow path 17 are both opened, and the valves 44 and 54 of the recovery flow path 16b are both closed ( (See FIG. 4).

  In this heat storage stage, the heat quantity Q generated in the heat supply unit 11 is recovered to the heat medium via the heat exchanger 12, and the heat medium circulates through the heat medium flow path 17 and the heat medium flow path 33 to generate heat. It is supplied to the chemical heat storage material 31 via the exchanger 32. Thereby, the dehydration reaction of the chemical heat storage material 31 occurs, and the amount of heat Q is stored in the chemical heat storage material 31 in the removable heat storage container 30. In parallel with this, the water vapor generated by the dehydration reaction of the chemical heat storage material 31 is introduced into the evaporative condenser 13 through the water vapor channel 13a and condensed, and the condensed water is reacted with the reaction water through the reaction water channel 14a. It is stored in the tank 14 (see FIG. 3).

  Here, FIG. 5 is a pressure-temperature diagram regarding the phase equilibrium of the dehydration and hydration reactions of the calcium hydroxide heat storage material. In FIG. 5, since the temperature of the heat supply unit 11 in the first embodiment is 426 ° C., water vapor in equilibrium with the chemical heat storage material 31 (point A in FIG. 5) at 426 ° C. at the same pressure (FIG. 5). The temperature at point B) is 60 ° C., and by setting the evaporative condenser 13 at a temperature lower than 60 ° C. (point b in FIG. 5), water vapor generated by the hydration reaction can be condensed and recovered. .

Thus, when the chemical heat storage material 31 of the detachable heat storage container 30 completes the dehydration reaction, the calcium hydroxide (Ca (OH) ₂ ) of the chemical heat storage material 31 changes to calcium oxide (CaO). 1 ends.

≪Step 2≫
Step 2 is a step of releasing the connection and releasing the connection of the removable heat storage container 30 after the heat storage from the heat supply facility 10. Table 1 shows each operation of disconnecting the detachable heat storage container 30 from the heat supply facility 10 after the heat storage process (step 1) is completed. In Table 1, the connection state of the pipe joint is indicated by ◯, the connection release state of the pipe joint is indicated by ×, the open state of the valve is indicated by ◯, and the closed state of the valve is indicated by ×.

  In Table 1, in operation 1, the heat medium flow path 33 of the detachable heat storage container 30 is connected to the heat medium flow path 17 of the heat supply facility 10, and the heat medium flow path 33 and the heat medium flow path 17 communicate with each other. The initial state in which the heat medium is circulating is shown (see FIG. 4).

  In the initial state of operation 1, the heat medium flow path 33 and the heat medium flow path 17 are connected by the pipe joints 41 and 51. Further, the valves 43 and 53 of the heat medium flow path 33 and the valves 42 and 52 of the heat medium flow path 17 are both opened, and the valves 44 and 54 of the recovery flow path 16b are both closed.

  In the operation of releasing / connecting in Step 2, first, in Operation 2, the operation of the heat medium circulation pump is stopped and the valves 42 and 52 of the heat medium flow path 17 are closed. As a result, the heat medium flow path 33 and the heat medium flow path 17 are released from communication, and the circulation of the heat medium is stopped.

  Next, in operation 3, the valves 44 and 54 of the recovery channel 16b are opened. Thus, the heat medium flow path between the valve 42 and the valve 43 (hereinafter referred to as “pipe connection part 45”) and the heat medium flow path between the valve 52 and the valve 53 (hereinafter referred to as “pipe connection part 55”). ), And the heat medium flow path 33 (including the heat exchanger 32) between the valve 43 and the valve 53 communicates with the recovery tank 16 via the recovery flow path 16b.

  Next, the operation 4 is a drain operation for recovering the heat medium filled in the pipe connection portions 45 and 55 and the heat medium flow path 33 in a state where the opening and closing of the valve is maintained in the same manner as the operation 3. In this operation 4, the temperature of the heat exchanger 32 is maintained at a high temperature exceeding 400 ° C., which is close to the temperature of waste heat, at the stage where the heat storage process (step 1) is completed, and the heat medium in the heat medium flow path 33. Maintains a liquid state at a pressure corresponding to this temperature.

  Therefore, in operation 4, the pressure in the recovery tank 16 is reduced to a pressure at which the low-boiling components in the heat medium are vaporized at a temperature near the heat exchanger 32. Here, the low boiling point component in the heat medium refers to a low molecular weight compound included in the heat medium in the form of the molecular weight distribution among the compounds constituting the heat medium (silicone oil in the first embodiment), or high temperature. This refers to a low molecular weight compound in which a part of the original heat medium deteriorates due to the use of the heat medium and is depolymerized.

  Due to the depressurization operation in the recovery tank 16 in this operation 4, the low boiling point component in the nearby heat medium starts to vaporize due to the sensible heat of the heat exchanger 32. Due to the vaporization of the low boiling point component, the pipe connection portions 45 and 55 and the heat medium filled in the heat medium flow path 33 are recovered in the recovery tank 16 via the recovery flow path 16b.

  Next, in operation 5, the valves 44 and 54 of the recovery flow path 16 b are closed at the stage where the pipe connections 45 and 55 and the heat medium in the heat medium flow path 33 are removed. The pipe connection parts 45 and 55 and the method for determining the timing at which the heat medium in the heat medium flow path 33 is excluded are not particularly limited. For example, the time is set in advance according to the configuration conditions of the heat storage management system. You may make it manage. Alternatively, a liquid sensor may be provided on the collection tank 16 side in the vicinity of the valves 44 and 54, and management may be performed when the liquid heat medium is no longer detected.

  Next, in operation 6, the valves 43 and 53 of the heat medium flow path 33 are closed. At this stage, the heat medium passage 33 between the valve 43 and the valve 53 is filled with the vaporized heat medium. By closing the valves 43 and 53 in this state, it is possible to prevent air or moisture from entering the heat medium flow path 33 and prevent the vaporized heat medium from deteriorating.

  Next, in operation 7, the pipe joints 41 and 51 that connect the heat medium flow path 33 and the heat medium flow path 17 are disconnected. Thus, the detachable heat storage container 30 is disconnected from the heat supply facility 10, and the detachable heat storage container 30 can be transferred to the position of the heat demand facility 20.

≪Step 3≫
Step 3 is a process of transferring the detachable heat storage container 30 after heat storage from the heat supply facility 10 to the heat demand facility 20. The method for transferring the detachable heat storage container 30 is not particularly limited, and may be appropriately selected depending on the capacity and weight of the detachable heat storage container 30, the distance from the heat supply facility 10 to the heat demand facility 20, and the like. For example, in the case of long-distance transfer, a vehicle, a railroad, a ship, or the like may be used. In the case of short distance transfer, for example, storage or transfer in a factory, a lift, an elevator, a conveyor, or the like may be used.

  In any case, in the first embodiment, since the calcium hydroxide heat storage material is adopted as the chemical heat storage material 31, safety during transportation is high and there is almost no heat dissipation loss. No heat loss occurs even during long-term heat storage. Moreover, in this 1st Embodiment, since it can transfer without leaving a thermal medium in the detachable heat storage container 30, the total weight of the detachable heat storage container 30 is reduced, and efficient heat storage and heat transfer are carried out. Can be realized.

≪Step 4≫
Step 4 is a step of connecting and communicating the removable heat storage container 30 after the transfer to the heat demand facility 20. Table 2 shows each operation for connecting the detachable heat storage container 30 transferred from the heat supply facility 10 to the heat demand facility 20. In Table 2, the connection state of the pipe joint is indicated by ○, the connection release state of the pipe joint is indicated by ×, the open state of the valve is indicated by ○, and the closed state of the valve is indicated by ×.

  In Table 2, operation 11 shows an initial state before the removable heat storage container 30 is transferred from the heat supply facility 10 to the heat demand facility 20 and connected to the heat demand facility 20 (see FIG. 4).

  In the initial state of operation 11, the heat medium flow path 33 and the heat medium flow path 27 are in a state of being disconnected at the pipe joints 41 and 51. Further, the valves 43 and 53 of the heat medium flow path 33, the valves 42 and 52 of the heat medium flow path 27, and the valves 44 and 54 of the recovery flow path 26b are all closed.

  In the initial state of this operation 11, the chemical heat storage material 31 of the detachable heat storage container 30 is in a state after heat storage, and is calcium oxide (CaO) in the first embodiment. In this state, connection / communication operation between the detachable heat storage container 30 and the heat demand facility 20 is performed.

  In the connection / communication operation in step 4, first, in operation 12, the heat medium flow path 33 and the heat medium flow path 27 are connected by the pipe joints 41 and 51. As a result, the detachable heat storage container 30 is incorporated into the heat demand facility 20, and is a stage before supplying the heat quantity Q to the heat demand facility 20.

  Next, in operation 13, the hydration reaction of the chemical heat storage material 31 of the detachable heat storage container 30 is started in a state in which the opening and closing of the valve is maintained in the same manner as in operation 12. In the hydration reaction of the chemical heat storage material 31, the reaction water in the reaction water tank 24 is supplied to the evaporation condenser 23 via the reaction water path 24a to generate water vapor, and the water vapor generated via the water vapor flow path 23a. Is supplied to the chemical heat storage material 31 in the detachable heat storage container 30.

  Thus, in operation 13, the temperature of the heat exchanger 32 rises to the heat generation temperature of the chemical heat storage material 31 by starting the hydration reaction of the chemical heat storage material 31. Here, the exothermic temperature by the hydration reaction of the chemical heat storage material 31 can be set to an arbitrary temperature. In the pressure-temperature diagram regarding the phase equilibrium of the dehydration reaction and hydration reaction of the calcium hydroxide heat storage material in FIG. 5, the temperature and pressure of the water vapor supplied to the chemical heat storage material 31 are adjusted to bring it into an equilibrium state. The heat generation temperature of a certain chemical heat storage material 31 can be set.

  For example, in FIG. 5, when obtaining a heat generation of 368 ° C., the temperature of water vapor (point D in FIG. 5) in equilibrium with the chemical heat storage material 31 (point C in FIG. 5) at 368 ° C. at the same pressure is 20 By setting the evaporative condenser 23 to a temperature higher than 20 ° C. (point d in FIG. 5), the exothermic temperature of the chemical heat storage material 31 can be set to 368 ° C. by a hydration reaction with evaporated water vapor. In the first embodiment, the temperature and pressure of water vapor supplied to the chemical heat storage material 31 are adjusted (higher than point F in FIG. 5) using the pressure-temperature diagram of FIG. Heat generation at a temperature higher than the hourly temperature of 426 ° C. (point E in FIG. 5, 600 ° C.) can also be exhibited.

  Thus, when the temperature of the heat exchanger 32 rises due to the hydration reaction of the chemical heat storage material 31 and the temperature of the heat medium remaining on the inner wall of the heat medium flow path 33 becomes equal to or higher than the boiling point, The valves 43 and 53 of the medium flow path 33 and the valves 44 and 54 of the recovery flow path 26b are opened. This operation 14 is an exhaust operation for removing air or moisture remaining in the pipe connection portions 45 and 55 and the heat medium flow path 33. By this operation 14, the heat medium remaining in the heat medium flow path 33 and the low boiling point component of the heat medium are vaporized and expanded, so that the pipe connections 45 and 55 and the heat medium flow path 33 enter the heat medium flow path 33. The remaining air or moisture is discharged to the recovery tank 26 via the recovery flow path 26b.

  On the other hand, when a large amount of sensible heat is accumulated in the chemical heat storage material 31 due to the dehydration reaction in the heat storage stage of Step 1, this sensible heat is not started in the operation 13 without starting the hydration reaction of the chemical heat storage material 31. By vaporizing and expanding the heat medium remaining in the heat medium flow path 33 and the low boiling point component of the heat medium, the pipe connection portions 45 and 55 and the air remaining in the heat medium flow path 33 or The moisture may be discharged to the recovery tank 26 through the recovery channel 26b.

  As described above, by the exhaust operation in the pipe connection portions 45 and 55 and the heat medium flow path 33 in the operation 14, the heat medium flow path 33 and the heat medium flow path 27 communicate with each other and the heat medium circulates at a high temperature. Even in this case, air or moisture is not mixed in the heat medium, and the heat medium can be prevented from deteriorating.

  Next, in operation 15, the valves 44 and 54 of the recovery flow path 26 b are closed at the stage where the pipe connections 45 and 55 and the air or moisture in the heat medium flow path 33 are removed. The method for determining the timing at which air or moisture in the pipe connection parts 45 and 55 and the heat medium flow path 33 is excluded is not particularly limited. For example, the time set in advance according to the configuration conditions of the heat storage management system You may make it manage with. Alternatively, an oxygen sensor and, if necessary, a moisture sensor may be provided on the collection tank 26 side in the vicinity of the valves 44 and 54, and management may be performed when air or moisture is no longer detected.

  Next, in operation 16, the valves 42 and 52 of the heat medium flow path 27 are opened. As a result, the heat medium flows from the heat medium flow path 27 into the pipe connection portions 45 and 55 and the heat medium flow path 33, and the heat medium flow path 33 of the detachable heat storage container 30 and the heat of the heat demanding facility 20. The medium flow path 27 communicates, and the liquid heat medium can be circulated in each flow path.

≪Step 5≫
Step 5 is a process of dissipating the heat quantity Q from the removable heat storage container 30 after heat storage and supplying it to the heat demand facility 20. In this heat radiation stage, the detachable heat storage container 30 is incorporated into the heat demand facility 20 (see FIG. 3), and the heat medium flow path 33 of the detachable heat storage container 30 is connected to the heat medium flow path 27 of the heat demand equipment 20. The heat medium flow path 33 and the heat medium flow path 27 communicate with each other, and the liquid heat medium is circulated by the operation of the heat medium circulation pump (see FIG. 4).

  In this heat radiation stage, the heat medium flow path 33 and the heat medium flow path 27 are connected by the pipe joints 41 and 51. Further, the valves 43 and 53 of the heat medium flow path 33 and the valves 42 and 52 of the heat medium flow path 27 are both opened, and the valves 44 and 54 of the recovery flow path 26b are both closed ( (See FIG. 4).

  In this heat release stage, the hydration reaction of the chemical heat storage material 31 started in operation 13 proceeds, and the amount of heat Q generated in the chemical heat storage material 31 is recovered to the heat medium via the heat exchanger 32. The heat medium is supplied to the heat demand section 21 through the heat exchanger 22 by circulating through the heat medium flow path 33 and the heat medium flow path 27. Thereby, the heat quantity Q stored in the chemical heat storage material 31 in the detachable heat storage container 30 is supplied to the heat demand section 21 of the heat demand facility 20 (see FIG. 3).

Thus, when the chemical heat storage material 31 of the detachable heat storage container 30 completes the hydration reaction, the calcium oxide (CaO) of the chemical heat storage material 31 changes to calcium hydroxide (Ca (OH) ₂ ). Step 5 ends.

≪Step 6≫
Step 6 is a step of releasing the connection and releasing the connection of the removable heat storage container 30 after the heat radiation from the heat demand facility 20. In Step 6, the same operation as in Step 2 described above is performed, and the heat supply facility 10 in Step 2 is replaced with a heat demand facility 20.

  However, in step 6 for the heat demand facility 20, the temperature of the heat exchanger 32 is maintained at a high temperature close to the heat radiation temperature at the stage where the heat radiation process (step 5) to the heat demand facility 20 is completed. The heat medium in the passage 33 maintains a liquid state at a pressure corresponding to this temperature.

  Therefore, also in the operation on the heat demand facility 20 (corresponding to the operation 4 in Step 2), the pressure in the recovery tank 26 is reduced to a pressure at which the low boiling point component in the heat medium is vaporized at a temperature near the heat exchanger 32. The decompression operation in the recovery tank 26 vaporizes the low boiling point component in the heat medium near the heat exchanger 32, and the heat medium filled in the pipe connections 45 and 55 and the heat medium flow path 33 is recovered. It is recovered in the recovery tank 26 via the path 26b.

≪Step 7≫
Step 7 is a process of transferring the detachable heat storage container 30 after heat radiation to the heat supply facility 10. In Step 7, the same operation as in Step 3 described above is performed.

≪Step 8≫
Step 8 is a step of connecting and communicating the removable heat storage container 30 after the transfer to the heat supply facility 10. In step 8, the same operation as in step 4 described above is performed, and the heat demanding facility 20 in step 4 is replaced with a heat supply facility 10.

  However, in step 8 for the heat supply facility 10, a large amount of sensible heat is accumulated in the chemical heat storage material 31 due to the hydration reaction in the heat release stage. With this sensible heat, the heat medium remaining on the inner wall of the heat medium flow path 33 can be vaporized, and the low boiling point component of the heat medium remaining in the heat medium flow path 33 can be expanded. As a result, air or moisture remaining in the pipe connection portions 45 and 55 and the heat medium flow path 33 is discharged to the recovery tank 16 via the recovery flow path 16b.

Second embodiment:
Next, a second embodiment of the heat storage management system according to the present invention will be described. In the second embodiment, similarly to the first embodiment, high temperature waste heat exceeding 400 ° C. released by the heat supply facility 110 is stored in the detachable heat storage container 130, and the detachable heat storage container 130 is used as a heat demand. The present invention relates to a heat storage management system that radiates the heat quantity Q transferred to the facility 120 and stores the heat and supplies the heat to the heat demand facility 120 (see FIG. 1).

  In the second embodiment, when the heat medium flow path is disconnected or the heat medium flow path is connected between the detachable heat storage container 130 and the heat supply facility 110 or the heat demand facility 120, the pipe connection portion As a method of removing air or moisture that enters the heat medium flow path from the heat medium, a low boiling point component of the heat medium liquefied in the recovery tank is used (details will be described later).

  FIG. 6 is a schematic configuration diagram illustrating the relationship between the detachable heat storage container 130 and the heat supply facility 110 (or the heat demand facility 120) in the second embodiment. 6, in a heat storage stage from the heat supply facility 110 to the detachable heat storage container 130 (hereinafter simply referred to as “heat storage stage”), FIG. 6 represents a relationship between the detachable heat storage container 130 and the heat supply equipment 110. Yes. On the other hand, in the heat radiation stage from the detachable heat storage container 130 to the heat demand facility 120 (hereinafter simply referred to as “heat radiation stage”), FIG. 6 shows the relationship between the detachable heat storage container 130 and the heat demand equipment 120 (symbols in parentheses). Represents the heat release stage).

  In FIG. 6, the removable heat storage container 130 includes a heat exchanger 132 for enclosing a chemical heat storage material 131 therein and exchanging heat with the chemical heat storage material 131. The heat exchanger 132 supplies a heat quantity Q to the chemical heat storage material 131 in the heat storage stage, and a liquid heat medium for receiving the heat quantity Q from the chemical heat storage material 131 in the heat release stage (in the second embodiment). Also, a heat medium flow path 133 through which a silicone oil-based heat medium is circulated is provided.

  In the second embodiment as well, a calcium hydroxide heat storage material is used as the chemical heat storage material 131 in order to effectively use the high-temperature waste heat exceeding 400 ° C. released by the heat supply facility 110. As described above, also in the second embodiment, by adopting the calcium hydroxide heat storage material, it is possible to efficiently store and use high-temperature waste heat reversibly.

  Also in the second embodiment, a water vapor sorption / desorption method is adopted in which the structure of the apparatus is relatively simple and water can be supplied to or removed from the chemical heat storage material 131 uniformly. Therefore, an evaporative condenser that exchanges water vapor with the chemical heat storage material 131 is employed in the detachable heat storage container 130 of the second embodiment.

  Moreover, in FIG. 6, the heat supply equipment 110 in the heat storage stage (heat demand equipment 120 in the heat dissipation stage) includes a heat supply section 111 (heat demand equipment 121 in the heat demand equipment) and a heat exchanger 112 (122 in the heat demand equipment). ), Evaporative condenser 113 (123 for heat demand equipment), reaction water tank 114 (124 for heat demand equipment), expansion tank 115 (125 for heat demand equipment) and recovery tank 116 (126 for heat demand equipment). Yes.

  In the heat storage stage in the heat supply facility 110, the heat supply unit 111 releases the amount of heat Q supplied to the chemical heat storage material 131. On the other hand, in the heat radiation stage in the heat demand facility 120, the heat demand section 121 demands the amount of heat Q released by the chemical heat storage material 131.

  The heat exchanger 112 (122) is for exchanging heat with the heat supply unit 111 (or the heat demand unit 121), and the heat exchanger 112 (122) receives heat from the heat supply unit 111 in the heat storage stage. A heat medium flow path 117 (127 for heat demand equipment) is provided in which a liquid heat medium (silicone oil-based heat medium) for receiving Q and supplying a heat quantity Q to the heat demand section 121 in the heat radiation stage circulates. It has been. The heat medium flow path 117 (127) is connected to and communicated with the heat medium flow path 133 of the removable heat storage container 130 by the two flow path connection portions 140 and 150, and a liquid heat medium is formed between the heat medium flow paths. Circulate (details will be described later). The means for circulating the heat medium is not particularly limited. For example, it is preferable to use a heat medium circulation pump (not shown) such as an overflow turbine pump or a canned motor pump.

  The evaporative condenser 113 (123) condenses water vapor generated during the dehydration reaction of the chemical heat storage material 131 enclosed in the removable heat storage container 130, and reacts during the hydration reaction of the chemical heat storage material 131. Water is evaporated to supply water vapor necessary for the hydration reaction. The evaporative condenser 113 (123) exchanges water vapor with the chemical heat storage material 131 in the detachable heat storage container 130 via the water vapor channel 113a (123a in the case of heat demand equipment). In this 2nd Embodiment, it does not specifically limit regarding the structure and capacity | capacitance of this evaporative condenser 113 (123), According to the kind and quantity of corresponding chemical thermal storage material 131, thermal storage temperature, exothermic temperature, and other conditions. What is necessary is just to select suitably.

  The reaction water tank 114 (124) separates and recovers the condensed water condensed by the evaporative condenser 113 (123) during the dehydration reaction of the chemical heat storage material 131, and steam during the hydration reaction of the chemical heat storage material 131. In order to generate the above, reaction water is supplied to the evaporative condenser 113 (123). This reaction water tank 114 (124) exchanges reaction water with the evaporative condenser 113 (123) via the reaction water flow path 114a (124a in the heat demand facility). In the second embodiment, the structure and capacity of the reaction water tank 114 (124) are not particularly limited, and may be appropriately selected depending on the capacity of the corresponding evaporation condenser 113 (123) and other conditions. . By adopting the reaction water tank 114 (124), the condensed water recovered during the dehydration reaction can be reused as the reaction water supplied to the evaporative condenser 113 (123).

  In the second embodiment, the evaporative condenser 113 (123) and the reaction water tank 114 (124) are included in the heat supply facility 110 (or the heat demand facility 120). Therefore, in the transfer stage in the second embodiment, the evaporative condenser 113 (123) and the reaction water tank 114 (124) are separated from the removable heat storage container 130, and only the removable heat storage container 130 is transferred. On the other hand, the evaporative condenser 113 (123) and the reaction water tank 114 (124) may be transferred as a single unit without being separated from the detachable heat storage container 130.

  In the second embodiment, connection and communication between the evaporative condenser 113 (123) and the removable heat storage container 130 when the evaporative condenser 113 (123) is separated from the removable heat storage container 130 and transferred. Is not particularly limited, and any method may be adopted.

  The expansion tank 115 (125) is provided in the flow path of the heat medium flow path 117 (127) included in the heat exchanger 112 (122), and a liquid heat medium circulating in the heat medium flow path 117 (127) is provided. It is provided to make the flow rate of the heat medium uniform by keeping the pressure in the heat medium flow path 117 (127) constant when expansion and contraction are repeated by heat exchange. The expansion tank 115 (125) separates the low boiling point component of the heat medium that has deteriorated due to the operation of the high-temperature heat medium from the heat medium flow path 117 (127).

  The recovery tank 116 (126) is connected to and communicated with the expansion tank 115 (125) via the recovery flow path 116a (126a in the case of heat demand equipment), recovers excess heat medium in the expansion tank 115 (125), Alternatively, the low boiling point component of the heat medium deteriorated by the high-temperature heat medium operation is recovered. Further, the recovery tank 116 (126) is guided to the flow path connecting portion 150 via the recovery flow path 116b (126b in the heat demand facility) and is connected to and communicated with the heat medium flow path 117 (127) (details will be described later). To do).

  In the recovery tank 116 (126), a low molecular weight low boiling point component (hereinafter referred to as “low boiling point”) in which a part of the original heat medium deteriorates due to the use of the heat medium at a high temperature among the recovered heat medium and is depolymerized. Heat medium)). These low boiling point heat mediums are recovered through the recovery flow path 116b (126b) in a state where part or all of them are vaporized, and are liquefied by the temperature and pressure in the recovery tank (lower temperature and lower pressure than in the heat medium flow path). Separated and maintained.

  Here, the recovery tank 116 (126) is guided to the flow path connecting portion 150 via the low boiling point heat medium flow path 116c (126c for heat demand equipment), and is connected to and communicated with the heat medium flow path 117 (127). . The low boiling point heat medium passage 116c (126c) introduces the liquid low boiling point heat medium in the recovery tank 116 (126) into the heat medium passage 117 (127) (details will be described later).

  Here, in the configuration of FIG. 6, the heat medium flow path 117 (127) of the heat supply facility 110 and the heat medium flow path 133 of the detachable heat storage container 130 are connected and communicated by the flow path connection portions 140 and 150. The state will be described.

  FIG. 7 is a schematic configuration diagram showing connections between the heat medium flow paths in the second embodiment. In the flow path connection unit 140, the heat medium flow path 117 (127) and the heat medium flow path 133 are connected / disconnected by the pipe joint 141.

  Further, a valve 142 is provided in the flow path of the heat medium flow path 117 (127) in the flow path connection section 140, and the heat medium flow path 117 (127) is communicated before and after the valve 142 by opening and closing the valve 142. The communication is canceled. On the other hand, a valve 143 is provided between the heat exchanger 132 and the pipe joint 141 in the heat medium flow path 133 of the detachable heat storage container 130, and the heat medium before and after the valve 143 is opened and closed. Communication / disconnection of the flow path 133 is performed.

  In addition, the flow path of the heat medium flow path 117 (127) in the flow path connection section 140 is between the valve 142 and the pipe joint 141 via the recovery flow path 116b (126b) and the recovery tank 116 (126) (FIG. 7 is omitted). Further, a valve 144 is provided in the flow path of the recovery flow path 116b (126b) in the flow path connection section 140. By opening and closing the valve 144, the heat medium flow path 117 (127) and the recovery tank 116 (126) are connected. Communication / communication cancellation is performed.

  Next, in the flow path connection unit 150, the heat medium flow path 117 (127) and the heat medium flow path 133 are connected and disconnected by the pipe joint 151. In addition, a valve 152 is provided in the flow path of the heat medium flow path 117 (127) in the flow path connection section 150. By opening and closing the valve 152, the heat medium flow path 117 (127) is communicated before and after the valve 152. The communication is canceled. On the other hand, a valve 153 is provided between the heat exchanger 132 and the pipe joint 151 in the heat medium flow path 133 of the detachable heat storage container 130, and the heat medium before and after the valve 153 is opened and closed. Communication / disconnection of the flow path 133 is performed.

  Further, the flow path of the heat medium flow path 117 (127) in the flow path connection section 150 is between the valve 152 and the pipe joint 151 via the recovery flow path 116b (126b) and the recovery tank 116 (126) (FIG. 7 is omitted). Further, a valve 154 is provided in the flow path of the recovery flow path 116b (126b) in the flow path connection section 150. By opening and closing the valve 154, the heat medium flow path 117 (127) and the recovery tank 116 (126) are separated. Communication / communication cancellation is performed.

  The flow path of the heat medium flow path 117 (127) in the flow path connection 150 is between the valve 152 and the pipe joint 151 via the low boiling point heat medium flow path 116c (126c) and the recovery tank 116 (126). (Not shown in FIG. 7). Further, a valve 156 is provided in the flow path of the low boiling point heat medium flow path 116c (126c) in the flow path connection section 150, and the heat medium flow path 117 (127) and the recovery tank 116 (126) are opened and closed by opening and closing the valve 156. ) And communication release.

  Here, in the heat storage management system according to the second embodiment, the process of storing heat quantity Q generated from the heat supply facility 110 in the detachable heat storage container 130 (step 11), and the detachable heat storage container 130 after heat storage is heated. Step of releasing communication / disconnection from supply facility 110 (step 12), step of transferring removable heat storage container 130 after heat storage to heat demand facility 120 (step 13), and attaching removable heat storage container 130 after transfer to heat demand facility Step of connecting / communication to 120 (step 14), step of radiating heat Q from the removable heat storage container 130 after heat storage and supplying it to the heat demand facility 120 (step 15), heating the removable heat storage container 130 after heat dissipation Step of releasing connection / disconnection from demand facility 120 (step 16), step of transferring removable heat storage container 130 after heat dissipation to heat supply facility 110 (step 17) And, repeating the cycle consisting of the steps of the process (step 18) for connecting and communicating the removable heat storage container 130 after transferring the heat supply facility 110. Hereinafter, these steps will be described.

<< Step 11 >>
Step 11 is a step of storing heat quantity Q generated from the heat supply facility 110 in the detachable heat storage container 130. Step 11 is the same as Step 1 in the first embodiment, and a description thereof is omitted here.

<< Step 12 >>
Step 12 is a step of releasing the connection / disconnection of the removable heat storage container 130 after heat storage from the heat supply facility 110. Table 3 shows each operation of disconnecting the detachable heat storage container 130 from the heat supply facility 110 after the heat storage process (step 11) is completed. In Table 3, the connection state of the pipe joint is indicated by ○, the connection release state of the pipe joint is indicated by ×, the open state of the valve is indicated by ○, and the closed state of the valve is indicated by ×.

  In Table 3, in operation 21, the heat medium flow path 133 of the detachable heat storage container 130 is connected to the heat medium flow path 117 of the heat supply facility 110, and the heat medium flow path 133 and the heat medium flow path 117 communicate with each other. The initial state in which the heat medium is circulating is shown (see FIG. 6).

  In the initial state of operation 21, the heat medium flow path 133 and the heat medium flow path 117 are connected by the pipe joints 141 and 151. Further, the valves 143 and 153 of the heat medium flow path 133 and the valves 142 and 152 of the heat medium flow path 117 are both opened. Further, the valves 144 and 154 of the recovery channel 116b and the valve 156 of the low boiling point heat medium channel 116c are closed.

  In the operation of releasing / connecting in step 12, first, in operation 22, the operation of the heat medium circulation pump is stopped and the valve 156 of the low boiling point heat medium flow path 116c is opened. As a result, the low-boiling point heat medium of the liquid in the recovery tank 116 passes through the low-boiling point heat medium flow path 116c, and the heat medium flow path between the valve 142 and the valve 143 (hereinafter referred to as “pipe connection part 145”). And a heat medium flow path (hereinafter referred to as “pipe connection portion 155”) between the valve 152 and the valve 153 and a heat medium flow path 133 (including the heat exchanger 132) between the valve 143 and the valve 153. be introduced. In addition, it is preferable to forcibly press-in the liquid low boiling point heat medium using a liquid pump or the like.

  This operation 22 is a draining operation for removing the pipe connection portions 145 and 155 and the liquid heat medium filled in the heat medium flow path 133 (hereinafter referred to as “normal heat medium” in the second embodiment). It is. By introducing the liquid low boiling point heat medium in the operation 22, the pipe connection parts 145 and 155 and the normal heat medium in the heat medium flow path 133 are pushed back by the low boiling point heat medium, Usually, the heating medium is replaced with a low boiling point heating medium. Note that the normal heating medium pushed back by the low boiling point heating medium is temporarily stored in the expansion tank 115. Further, in the operation 22, the replacement of the low-boiling-point heat medium in the heat medium flow path 133 is expanded or partially vaporized by the sensible heat of the chemical heat storage material 31, so that the removal of the normal heat medium is made more effective. You can also.

  At the stage where the normal heat medium in these heat medium flow paths is removed, in the subsequent operation 23, the valves 143 and 153 of the heat medium flow path 133 and the valves 142 and 152 of the heat medium flow path 117 are closed. The method for determining the timing at which the normal heat medium in the heat medium flow path is excluded is not particularly limited. For example, from the start of introduction of the low boiling point heat medium until the normal heat medium is excluded. This time may be determined by measuring in advance.

  At this stage, the heat transfer passage 133 (including the heat exchanger 132) between the valve 143 and the valve 153 is filled with a low boiling point heat transfer medium. Accordingly, it is possible to prevent the low-boiling point heat medium from being deteriorated by eliminating the intrusion of air or moisture into the heat medium flow path 133. On the other hand, the low-boiling point heat medium is also filled in the pipe connection parts 145 and 155 that are disconnected from the heat medium flow path 133.

  Next, in operation 24, the valve 156 of the low boiling point heat medium flow path 116c is closed. Further, in the subsequent operation 25, the valves 144 and 154 of the recovery channel 116b are opened. At this time, the pressure in the recovery tank 16 may be reduced to a pressure at which the low boiling point heating medium is vaporized. As a result, the pipe connection portions 145 and 155 communicate with the recovery tank 116 via the recovery flow path 116b, and the low boiling point heat medium in the pipe connection portions 145 and 155 flows into the recovery tank 116 and is recovered.

  Next, in operation 26, the valves 144 and 154 of the recovery flow path 116b are closed at the stage where the low boiling point heat medium in the pipe connection portions 145 and 155 is removed. The method for determining the timing at which the low-boiling-point heat medium in the pipe connection portions 145 and 155 is removed is not particularly limited, and for example, it may be managed at a preset time according to the configuration conditions of the heat storage management system. . Alternatively, a liquid sensor may be provided on the collection tank 116 side in the vicinity of the valves 144 and 154 so that the low-boiling point heat medium of the liquid is not detected.

  Next, in operation 27, the pipe joints 141 and 151 connecting the heat medium flow path 133 and the heat medium flow path 117 are disconnected. Thereby, the detachable heat storage container 130 is disconnected from the heat supply facility 110, and the detachable heat storage container 130 can be transferred to the position of the heat demand facility 120.

<< Step 13 >>
Step 13 is a process of transferring the detachable heat storage container 130 after heat storage from the heat supply facility 110 to the heat demand facility 120. This step 13 is the same as step 3 in the first embodiment, and a description thereof is omitted here.

<< Step 14 >>
Step 14 is a process of connecting and communicating the removable heat storage container 130 after the transfer to the heat demanding facility 120. Table 4 shows each operation of connecting the detachable heat storage container 130 transferred from the heat supply facility 110 to the heat demand facility 120. In Table 4, the connection state of the pipe joint is indicated by ◯, the connection release state of the pipe joint is indicated by ×, the open state of the valve is indicated by ◯, and the closed state of the valve is indicated by ×.

  In Table 4, operation 31 shows an initial state before the removable heat storage container 130 is transferred from the heat supply facility 110 to the heat demand facility 120 and connected to the heat demand facility 120 (see FIG. 7).

  In the initial state of operation 31, the heat medium flow path 133 and the heat medium flow path 127 are in a state of being disconnected at the pipe joints 141 and 151. Further, the valves 143 and 153 of the heat medium flow path 133 and the valves 142 and 152 of the heat medium flow path 127 are both closed. Further, the valves 144 and 154 of the recovery flow path 126b and the valve 156 of the low boiling point heat medium flow path 126c are both closed.

  In the initial state of this operation 31, the chemical heat storage material 131 of the detachable heat storage container 130 is in a state after heat storage, and is calcium oxide (CaO) in the second embodiment. In this state, connection / communication operation between the detachable heat storage container 130 and the heat demand facility 120 is performed.

  In the connection / communication operation in step 14, first, in operation 32, the heat medium flow path 133 and the heat medium flow path 127 are connected at the pipe joints 141 and 151. As a result, the detachable heat storage container 130 is incorporated in the heat demand facility 120, and is a stage before supplying the heat quantity Q to the heat demand facility 120.

  Next, in operation 33, the valves 143 and 153 of the heat medium flow path 133, the valves 144 and 154 of the recovery flow path 126b, and the valve 156 of the low boiling point heat medium flow path 126c are opened. This operation 33 is an exhaust operation for removing air or moisture remaining in the pipe connecting portions 145 and 155.

  By this operation 33, the low boiling point heat medium of the liquid in the recovery tank 126 flows into the pipe connection parts 145 and 155 via the low boiling point heat medium flow path 126c. Note that the heat medium flow path 133 between the valve 143 and the valve 153 is filled with the low boiling point heat medium (see operation 23 in step 12). Therefore, air or moisture remaining in the pipe connection portions 145 and 155 is discharged to the recovery tank 126 through the recovery flow path 126b by the low boiling point heating medium flowing into the pipe connection portions 145 and 155. At this stage, the pipe connections 145 and 155 and the heat medium flow path 133 are filled with a low boiling point heat medium.

  As described above, the heat medium flow path 133 and the heat medium flow path 127 communicate with each other and the heat medium circulates at a high temperature by the exhaust operation of the pipe connection portions 145 and 155 and the heat medium flow path 133 in the operation 33. However, air or moisture is not mixed into the heat medium, and deterioration of the heat medium can be prevented.

  Next, in operation 34, when the air or moisture in the pipe connection portions 145 and 155 and the heat medium flow path 133 is removed, the valves 144 and 154 of the recovery flow path 126b and the low boiling point heat medium flow The valve 156 in the passage 126c is closed. The method of determining the timing at which the air or moisture in the pipe connection portions 145 and 155 and the heat medium flow path 133 is excluded is not particularly limited. For example, the time set in advance according to the configuration conditions of the heat storage management system You may make it manage with. Alternatively, an oxygen sensor and, if necessary, a moisture sensor may be provided on the collection tank 126 side near the valves 144 and 154, and management may be performed when air or moisture is no longer detected.

  Next, in operation 35, the valves 142 and 152 of the heat medium passage 127 are opened. At this stage, as described above, the pipe connection portions 145 and 155 and the heat medium flow path 133 are in a state filled with the low boiling point heat medium. By this operation 35, the low-boiling point heat medium in the pipe connection parts 145 and 155 and the heat medium flow path 133 is mixed with the normal heat medium flowing in from the heat medium flow path 127, and the heat medium of the detachable heat storage container 130. The flow path 133 and the heat medium flow path 127 of the heat demand facility 120 communicate with each other, and a liquid heat medium can be circulated in each flow path. The low boiling point heat medium mixed with the normal heat medium is recovered and liquefied again in the recovery tank 126 through the expansion tank 125 by the circulation of the normal heat medium.

<< Step 15 >>
Step 15 is a process of dissipating the heat quantity Q from the removable heat storage container 130 after heat storage and supplying it to the heat demand facility 120. This step 15 is the same as step 5 in the first embodiment, and a description thereof is omitted here.

<< Step 16 >>
Step 16 is a step of releasing the connection and releasing the connection of the removable heat storage container 130 after the heat radiation from the heat demand facility 120. In step 16, the same operation as in step 12 described above is performed, and the heat supply facility 110 in step 12 is replaced with a heat demand facility 120.

<< Step 17 >>
Step 17 is a process of transferring the detachable heat storage container 130 after heat radiation to the heat supply facility 110. This step 17 performs the same operation as the above-mentioned step 13.

<< Step 18 >>
Step 18 is a step of connecting / communicating the removable heat storage container 130 after the transfer to the heat supply facility 110. In this step 18, the same operation as in the above-described step 14 is performed, and the heat demanding facility 120 in step 14 is replaced with the heat supply facility 110.

Third embodiment:
Next, a third embodiment of the heat storage management system according to the present invention will be described. In the third embodiment, similarly to the first embodiment, the high-temperature waste heat exceeding 400 ° C. released by the heat supply facility 210 is stored in the detachable heat storage container 230, and the detachable heat storage container 230 is used as a heat demand. The present invention relates to a heat storage management system that dissipates the heat quantity Q transferred to the facility 220 and stores the heat and supplies it to the heat demand facility 220 (see FIG. 1).

  In the third embodiment, when the heat medium flow path is disconnected or the heat medium flow path is connected between the detachable heat storage container 230 and the heat supply equipment 210 or the heat demand equipment 220, the pipe connection portion As a method for removing air or moisture that enters the heat medium flow path from the inside, introduction of nitrogen gas into the tube and decompression operation (evacuation) in the tube are used (details will be described later).

  The relationship between the detachable heat storage container 230 and the heat supply facility 210 (or the heat demand facility 220) in the third embodiment is substantially the same as the schematic configuration diagram (see FIG. 6) shown in the second embodiment. However, in the third embodiment, the recovery tank 116 (126) in FIG. 6 is not adopted, and a vacuum pump and a nitrogen gas tank (both not shown) are adopted (details will be described later).

  In the third embodiment, the detachable heat storage container 230 includes a heat exchanger 232 for enclosing a chemical heat storage material 231 therein and exchanging heat with the chemical heat storage material 231. The heat exchanger 232 supplies a heat quantity Q to the chemical heat storage material 231 in the heat storage stage, and a liquid heat medium (in this third embodiment) for receiving the heat quantity Q from the chemical heat storage material 231 in the heat release stage. Also, a heat medium flow path 233 through which a silicone oil-based heat medium is circulated is provided.

  In the third embodiment as well, a calcium hydroxide heat storage material is employed as the chemical heat storage material 231 in order to effectively use the high-temperature waste heat exceeding 400 ° C. released by the heat supply equipment 210. As described above, also in the third embodiment, by adopting the calcium hydroxide heat storage material, it is possible to efficiently store and use the high-temperature waste heat reversibly.

  Also in the third embodiment, a water vapor sorption / desorption method is adopted in which the structure of the apparatus is relatively simple and water can be supplied to or removed from the chemical heat storage material 231 uniformly. Therefore, in the removable heat storage container 230 of the third embodiment, an evaporative condenser that exchanges water vapor with the chemical heat storage material 231 is employed.

  In the third embodiment, the heat supply equipment 210 in the heat storage stage (heat demand equipment 220 in the heat release stage) includes a heat supply section 211 (heat demand equipment 221 in the heat demand equipment) and a heat exchanger 212 (heat demand equipment in the heat demand equipment). 222), an evaporative condenser 213 (223 for heat demand equipment), a reaction water tank 214 (224 for heat demand equipment) and an expansion tank 215 (225 for heat demand equipment) (see FIG. 6). Unlike the second embodiment, a recovery tank is not required, and instead, a nitrogen gas tank 216 (226 for heat demand equipment) and a vacuum pump 257 (same for heat demand equipment) are provided.

  In the heat storage stage in the heat supply facility 210, the heat supply unit 211 releases the amount of heat Q supplied to the chemical heat storage material 231. On the other hand, in the heat radiation stage in the heat demand facility 220, the heat demand section 221 demands the amount of heat Q released by the chemical heat storage material 231.

  The heat exchanger 212 (222) is for exchanging heat with the heat supply unit 211 (or the heat demand unit 221). The heat exchanger 212 (222) receives heat from the heat supply unit 211 in the heat storage stage. A heat medium flow path 217 (227 for heat demand equipment) through which a liquid heat medium (silicone oil-based heat medium) for receiving Q and supplying heat quantity Q to the heat demand section 221 in the heat radiation stage circulates is provided. It has been. The heat medium flow path 217 (227) is connected and communicated with the heat medium flow path 233 of the detachable heat storage container 230 by the two flow path connection portions 240 and 250, and a liquid heat medium is formed between the heat medium flow paths. Circulate (details will be described later). The means for circulating the heat medium is not particularly limited. For example, it is preferable to use a heat medium circulation pump such as an overflow turbine pump or a canned motor pump.

  The structures of the evaporation condenser 213 (223) and the reaction water tank 214 (224) are the same as those in the second embodiment, and the description thereof is omitted here. In the third embodiment as well, the evaporative condenser 213 (223) and the reaction water tank 214 (224) are included in the heat supply facility 210 (or the heat demand facility 220). Therefore, in the transfer stage in the third embodiment, the evaporative condenser 213 (223) and the reaction water tank 214 (224) are separated from the removable heat storage container 230 and only the removable heat storage container 230 is transferred. On the other hand, the evaporative condenser 213 (223) and the reaction water tank 214 (224) may be transferred as a single unit without being separated from the detachable heat storage container 230.

  In the third embodiment, connection and communication between the evaporation condenser 213 (223) and the removable heat storage container 230 when the evaporation condenser 213 (223) is separated from the removable heat storage container 230 and transferred. Is not particularly limited, and any method may be adopted.

  The expansion tank 215 (225) is provided in the flow path of the heat medium flow path 217 (227) included in the heat exchanger 212 (222), and a liquid heat medium circulating in the heat medium flow path 217 (227) is provided. It is provided to make the flow rate of the heat medium uniform by keeping the pressure in the heat medium flow path 217 (227) constant when expansion and contraction are repeated by heat exchange. The expansion tank 215 (225) separates the low boiling point component of the heat medium deteriorated by the high-temperature heat medium operation from the heat medium flow path 217 (227).

  The nitrogen gas tank 216 (226) is for supplying nitrogen gas into the connection portion between the heat medium flow path 217 (227) and the heat medium flow path 233 and the heat medium flow path 233 (details will be described later). . In addition, in this 3rd Embodiment, although nitrogen gas is employ | adopted, it is not limited to this, You may make it employ | adopt other inert gas.

  The vacuum pump 257 is for exhausting the nitrogen gas filled in the connecting portion of the heat medium flow path 217 (227) and the heat medium flow path 233 and the heat medium flow path 233 to the outside of the system (for details). Will be described later).

  Here, in the above configuration (see FIG. 6), the heat medium flow path 217 (227) of the heat supply facility 210 and the heat medium flow path 233 of the detachable heat storage container 230 are connected by the flow path connection portions 240 and 250. A state in which communication is performed will be described.

  FIG. 8 is a schematic configuration diagram showing the connection between the heat medium flow paths in the third embodiment. In the flow path connecting part 240, the heat medium flow path 217 (227) and the heat medium flow path 233 are connected and disconnected by the pipe joint 241.

  In addition, a valve 242 is provided in the flow path of the heat medium flow path 217 (227) in the flow path connection portion 240, and the heat medium flow path 217 (227) is communicated before and after the valve 242 by opening and closing the valve 242. The communication is canceled. On the other hand, a valve 2143 is provided between the heat exchanger 232 and the pipe joint 241 in the heat medium flow path 233 of the detachable heat storage container 230, and the heat medium before and after the valve 243 is opened and closed by the opening and closing of the valve 243. Communication / disconnection of the flow path 233 is performed.

  In addition, the flow path of the heat medium flow path 217 (227) in the flow path connection section 240 passes from between the valve 242 and the pipe joint 241 to the vacuum pump 257 via the exhaust flow path 216b (226b in the heat demand facility). It is connected. Further, a valve 244 is provided in the flow path of the exhaust flow path 216b (226b) in the flow path connection section 240, and communication / communication between the heat medium flow path 217 (227) and the vacuum pump 257 is achieved by opening and closing the valve 244. Release is performed.

  Next, in the flow path connection part 250, the heat medium flow path 217 (227) and the heat medium flow path 233 are connected and disconnected by the pipe joint 251. Further, a valve 252 is provided in the flow path of the heat medium flow path 217 (227) in the flow path connection portion 250, and the heat medium flow path 217 (227) is communicated before and after the valve 252 by opening and closing the valve 252. The communication is canceled. On the other hand, a valve 253 is provided between the heat exchanger 232 and the pipe joint 251 in the heat medium flow path 233 of the detachable heat storage container 230, and the heat medium before and after the valve 253 is opened and closed by the opening and closing of the valve 253. Communication / disconnection of the flow path 233 is performed.

  Further, the flow path of the heat medium flow path 217 (227) in the flow path connection section 250 is connected to the vacuum pump 257 from between the valve 252 and the pipe joint 251 via the exhaust flow path 216b (226b). . Further, a valve 254 is provided in the flow path of the exhaust flow path 216b (226b) in the flow path connection section 250, and communication / communication between the heat medium flow path 217 (227) and the vacuum pump 257 is achieved by opening and closing the valve 254. Release is performed.

  The flow path of the heat medium flow path 217 (227) in the flow path connection section 250 is a nitrogen gas tank 216 from between the valve 252 and the pipe joint 251 through a nitrogen gas flow path 216c (226c in the heat demand facility). (In the heat demand facility 226) (not shown in FIG. 8). Further, a valve 256 is provided in the flow path of the nitrogen gas flow path 216c (226c) in the flow path connection portion 250, and the heating medium flow path 217 (227) and the nitrogen gas tank 216 (226) are opened and closed by opening and closing the valve 256. Communication / disconnection is performed.

  Here, in the heat storage management system according to the third embodiment, the step of storing heat quantity Q generated from the heat supply facility 210 in the removable heat storage container 230 (step 21), and the removable heat storage container 230 after heat storage is heated. Step of releasing connection / disconnection from supply equipment 210 (step 22), step of transferring removable heat storage container 230 after heat storage to heat demand equipment 220 (step 23), and attaching removable heat storage container 230 after heat transfer to heat demand equipment Step of connecting / communication to 220 (step 24), step of releasing heat quantity Q from the removable heat storage container 230 after heat storage and supplying it to the heat demand facility 220 (step 25), heating the removable heat storage container 230 after heat dissipation Step of releasing communication / disconnection from demand facility 220 (step 26), step of transferring removable heat storage container 230 after heat dissipation to heat supply facility 210 (step 27) And, repeating the cycle consisting of the steps of the process (step 28) for connecting and communicating the removable heat storage container 230 after transferring the heat supply facility 210. Hereinafter, these steps will be described.

<< Step 21 >>
Step 21 is a step of storing heat quantity Q generated from the heat supply facility 210 in the detachable heat storage container 230. This step 21 is the same as step 1 in the first embodiment, and a description thereof is omitted here.

<< Step 22 >>
Step 22 is a step of releasing the connection / disconnection of the removable heat storage container 230 after the heat storage from the heat supply facility 210. Table 5 shows each operation of disconnecting the detachable heat storage container 230 from the heat supply facility 210 after the heat storage process (step 21) is completed. In Table 5, the connection state of the pipe joint is indicated by ○, the connection release state of the pipe joint is indicated by ×, the open state of the valve is indicated by ○, the closed state of the valve is indicated by ×, and the operating state of the vacuum pump is indicated by ○, The stop state of the vacuum pump is indicated by x.

  In Table 5, in operation 41, the heat medium flow path 233 of the detachable heat storage container 230 is connected to the heat medium flow path 217 of the heat supply facility 210, and the heat medium flow path 233 and the heat medium flow path 217 communicate with each other. The initial state in which the heat medium is circulating is shown.

  In the initial state of operation 41, the heat medium flow path 233 and the heat medium flow path 217 are connected by the pipe joints 241 and 251. Further, the valves 243 and 253 of the heat medium flow path 233 and the valves 242 and 252 of the heat medium flow path 217 are both open. Further, the valves 244 and 254 of the exhaust passage 216b and the valve 256 of the nitrogen gas passage 216c are both closed, and the vacuum pump 257 is stopped.

  The communication release / connection release operation in step 22 is first performed in operation 42 by stopping the operation of the heat medium circulation pump and opening the valve 256 of the nitrogen gas flow path 216c. As a result, the nitrogen gas in the nitrogen gas tank 216 passes through the nitrogen gas flow path 216c, and the heat medium flow path (hereinafter referred to as “piping connection portion 245”) between the valve 242 and the valve 243, and the valve 252 and the valve 253. And a heat medium flow path 233 (including the heat exchanger 232) between the valve 243 and the valve 253.

  This operation 42 is a drain operation for removing the liquid heat medium filled in the pipe connection portions 245 and 255 and the heat medium flow path 233. By introducing the nitrogen gas in this operation 42, the liquid heat medium in the pipe connection parts 245 and 255 and the heat medium flow path 233 is pushed back by the nitrogen gas, and the liquid heat medium in these heat medium flow paths is removed. Completely eliminated and replaced with nitrogen gas.

  At the stage where the liquid heat medium in the heat medium flow path is removed, in the subsequent operation 43, the valves 243 and 253 of the heat medium flow path 233 and the valves 242 and 252 of the heat medium flow path 217 are closed. . The method for determining the timing at which the liquid heat medium in the heat medium flow path is eliminated is not particularly limited. For example, from the start of introduction of nitrogen gas until the liquid heat medium is eliminated. This time may be determined by measuring in advance. Alternatively, a liquid sensor may be provided outside the valve 242 of the pipe connection unit 245 and outside the valve 252 of the pipe connection unit 255 so that management is performed when the liquid heat medium is no longer detected.

  At this stage, the pipe connections 245 and 255 and the heat medium passage 233 are filled with the introduced nitrogen gas. As a result, it is possible to eliminate the entry of air or moisture into the heat medium flow path 233.

  Next, in operation 44, the valve 256 of the nitrogen gas flow path 216c is closed. Further, in operation 45, the pipe joints 241 and 251 connecting the heat medium flow path 233 and the heat medium flow path 217 are disconnected. As a result, the detachable heat storage container 230 is disconnected from the heat supply facility 210, and the detachable heat storage container 230 can be transferred to the position of the heat demand facility 220.

<< Step 23 >>
Step 23 is a process of transferring the removable heat storage container 230 after heat storage from the heat supply facility 210 to the heat demand facility 220. This step 23 is the same as step 3 in the first embodiment, and a description thereof is omitted here.

<< Step 24 >>
Step 24 is a step of connecting and communicating the removable heat storage container 230 after the transfer to the heat demand facility 220. Table 6 shows each operation of connecting the detachable heat storage container 230 transferred from the heat supply facility 210 to the heat demand facility 220. In Table 6, the connection state of the pipe joint is indicated by ○, the connection release state of the pipe joint is indicated by ×, the open state of the valve is indicated by ○, the closed state of the valve is indicated by ×, and the operating state of the vacuum pump is indicated by ○, The stop state of the vacuum pump is indicated by x.

  In Table 6, operation 51 shows an initial state before the removable heat storage container 230 is transferred from the heat supply facility 210 to the heat demand facility 220 and connected to the heat demand facility 220 (see FIG. 8).

  In the initial state of the operation 51, the heat medium flow path 233 and the heat medium flow path 227 are disconnected at the pipe joints 241 and 251. Further, the valves 243 and 253 of the heat medium flow path 233 and the valves 242 and 252 of the heat medium flow path 227 are both closed. Further, the valves 244 and 254 of the exhaust passage 226b and the valve 256 of the nitrogen gas passage 216c are both closed.

  In the initial state of this operation 51, the chemical heat storage material 231 of the removable heat storage container 230 is in a state after heat storage, and is calcium oxide (CaO) in the third embodiment. In this state, connection / communication operation between the detachable heat storage container 230 and the heat demand facility 220 is performed.

  In the connection / communication operation in step 24, first, in operation 52, the heat medium flow path 233 and the heat medium flow path 227 are connected by the pipe joints 241 and 251. As a result, the detachable heat storage container 230 is incorporated in the heat demand facility 220 and is a stage before supplying the heat quantity Q to the heat demand facility 220.

  Next, in operation 53, the valves 243 and 253 of the heat medium passage 233 are opened. Further, in operation 54, the valves 244 and 254 of the exhaust passage 226b are opened, and the vacuum pump 257 is operated to perform evacuation. This operation 54 is an exhaust operation for removing air or moisture that has entered the pipe connection parts 245 and 255 and nitrogen gas filled in the heat medium flow path 233.

  As described above, the piping connection parts 245 and 255 in the operation 54 and the exhaust operation in the heating medium channel 233 cause the heating medium channel 233 and the heating medium channel 227 to communicate with each other and the heating medium circulates at a high temperature. Even in this case, air or moisture is not mixed in the heat medium, and the heat medium can be prevented from deteriorating.

  Next, in operation 55, the valves 244 and 254 of the exhaust passage 226b are closed and the vacuum pump 257 is stopped. In this state, the pipe connections 245 and 255 and the heat medium flow path 233 are in a vacuum state, and air or moisture does not enter the heat medium flow path.

  Next, in operation 56, the valves 242 and 252 of the heat medium passage 227 are opened. As a result, the heat medium flows from the heat medium flow path 227 into the pipe connection portions 245 and 255 and the heat medium flow path 233, and the heat medium flow path 233 of the detachable heat storage container 230 and the heat of the heat demand equipment 220 are heated. The medium flow path 227 communicates, and the liquid heat medium can be circulated in each flow path.

<< Step 25 >>
Step 25 is a process of dissipating the heat quantity Q from the removable heat storage container 230 after heat storage and supplying it to the heat demand facility 220. This step 25 is the same as step 5 in the first embodiment, and a description thereof is omitted here.

<< Step 26 >>
Step 26 is a step of releasing the connection / disconnection of the detachable heat storage container 230 after the heat radiation from the heat demand facility 220. This step 26 performs the same operation as the above-described step 22, and is obtained by replacing the heat supply facility 210 in step 22 with a heat demand facility 220.

<< Step 27 >>
Step 27 is a process of transferring the detachable heat storage container 230 after heat radiation to the heat supply facility 210. This step 27 performs the same operation as the above-mentioned step 23.

<< Step 28 >>
Step 28 is a step of connecting and communicating the removable heat storage container 230 after the transfer to the heat supply facility 210. In this step 28, the same operation as in the above-described step 24 is performed, and the heat demanding facility 220 in step 24 is replaced with a heat supply facility 210.

  As described above, in the present invention, in each stage of heat storage in the heat storage container, storage and transfer of the heat storage container, and heat radiation from the heat storage container, air or moisture that causes deterioration of the heat medium in the heat medium flow path. The thermal storage management system which can implement | achieve efficient thermal storage and heat transfer while ensuring the temperature range of thermal storage temperature and thermal radiation temperature widely can be provided.

In carrying out the present invention, the following various modifications are not limited to the above embodiments.
(1) In each of the above-described embodiments, the heat transfer (see FIG. 1) for transferring the heat storage facility from the heat supply facility to the heat demand facility by distinguishing the two heat storage and heat dissipation facilities into the heat supply facility and the heat demand facility. To do. However, the present invention is not limited to this, and one or two or more detachable heat storage containers are used in one heat storage / dissipation facility (a heat supply facility and a heat demand facility). You may make it perform thermal storage (refer FIG. 2). In this case, a plurality of detachable heat storage containers may be stored in a storage provided near the heat demand facility, and heat may be supplied as required by the heat demand facility.
(2) In each of the above embodiments, the temperature of the waste heat released from the heat supply facility is a high temperature exceeding 400 ° C., and a calcium hydroxide system is used as a chemical heat storage material in order to use this high-temperature waste heat. Although heat storage material is adopted, it is not limited to this, and by appropriately selecting the type of chemical heat storage material according to the temperature of the amount of heat released by the heat supply facility, the heat amount in various temperature ranges can be obtained. The present invention can also be applied to this.
(3) In each of the above embodiments, the removable heat storage container is transferred in a state where the heat medium in the heat medium flow path is excluded, but the present invention is not limited to this, and the heat medium flow path is not limited to this. The removable heat storage container may be stored or transported in a state filled with a heat medium. In this case, the sensible heat maintained by the heat medium during heat exchange with the heat supply facility or the heat demand facility can also be stored or transferred.
(4) In each of the embodiments described above, an evaporation condenser in which a condenser in the dehydration reaction of the chemical heat storage material and an evaporator in the hydration reaction are integrated is used. However, the present invention is not limited to this. However, these devices may be employed as separate devices. In this way, when the evaporative condenser is separated, a condenser for the dehydration reaction is arranged in the heat supply facility, and an evaporator for the hydration reaction is arranged in the heat demand facility. Good.
(5) In each of the above embodiments, an evaporator condenser in which a condenser in the dehydration reaction of the chemical heat storage material and an evaporator in the hydration reaction are integrated is used. However, the present invention is not limited to this. Instead of adopting a condenser for the dehydration reaction in the heat supply facility, the water vapor generated by the dehydration reaction of the chemical heat storage material may be directly released to the outside of the removable heat storage container. On the other hand, the evaporator for the hydration reaction may not be employed in the heat demand facility, and the steam from the steam pipe in the facility may be directly supplied to the inside of the removable heat storage container. Furthermore, you may make it supply reaction water directly into the inside of a detachable heat storage container instead of water vapor | steam.

10, 20, 110, 120, 210, 220 ... heat storage / dissipation equipment (heat supply equipment or heat demand equipment),
30, 130, 230 ... Detachable heat storage container, 31, 131, 231 ... Chemical heat storage material,
11, 111, 211 ... heat supply unit, 21, 121, 221 ... heat demand unit,
12, 22, 32, 112, 122, 132, 212, 222, 232 ... heat exchangers,
13, 23, 113, 123, 213, 223 ... evaporative condenser,
14, 24, 114, 124, 214, 224 ... reaction water tank,
15, 25, 115, 125, 215, 225 ... expansion tank,
16, 26, 116, 126 ... recovery tank, 16a, 16b, 26a, 26b, 116a, 116b, 126a, 126b ... recovery flow path,
216, 226 ... Nitrogen gas tank, 216c, 226c ... Nitrogen gas flow path,
17, 27, 33, 117, 127, 133, 217, 227, 233 ... heat medium flow path,
40, 50, 140, 150, 240, 250 ... flow path connection part,
41, 51, 141, 151, 241, 251 ... pipe fittings,
42, 43, 44, 52, 53, 54, 142, 143, 144, 152, 153,
154, 156, 242, 243, 244, 252, 253, 254, 256 ... valves,
45, 55, 145, 155, 245, 255 ... piping connection part,
257 ... Vacuum pump, A ... Storage, heat quantity Q ... heat quantity.

Claims (8)

One or more heat storage / dissipation facilities including a first heat exchanger having a first heat medium flow path for circulating a heat medium for heat exchange with a heat supply unit or a heat supply and demand unit;
A second heat exchanger having a second heat medium flow path that encloses a chemical heat storage material that stores heat by dehydration reaction and releases heat by a hydration reaction and circulates a heat medium for heat exchange with the chemical heat storage material A removable heat storage container
In detaching and storing or transferring the detachable heat storage container from the heat storage facility, and using the amount of heat stored by attaching the detachable heat storage container to the same or different heat storage facility,
In the stage of storing heat in the detachable heat storage container, the first heat medium flow path and the second heat medium flow path are communicated, and the heat medium is circulated between the heat medium flow paths to thereby store the heat storage. Supply the amount of heat generated in the heat dissipation facility to the chemical heat storage material to cause a dehydration reaction and store heat in the removable heat storage container,
In the management stage of storing or transferring the detachable heat storage container, the detachable heat storage container is stored or transferred in a state in which the second heat medium flow path is released from the first heat medium flow path.
In the heat release stage from the detachable heat storage container, the second heat medium flow path and the first heat medium flow path are communicated, and the heat medium is circulated between the heat medium flow paths, thereby A heat storage management system in which the amount of heat stored in the heat storage material is dissipated by the hydration reaction of the chemical heat storage material and used in the heat storage and heat dissipation facility,
When the second heat medium flow path communicates with the first heat medium flow path, a connection operation for connecting the heat medium flow paths is performed, and the residual gas remaining in the pipe connection portion after the connection operation Exhaust operation is performed, and after the exhaust operation, the second heat medium flow path is communicated with the first heat medium flow path, and the communication operation for filling the pipe connection portion with the heat medium is performed.
When releasing the communication of the second heat medium flow path from the first heat medium flow path, a communication release operation for releasing the communication of the second heat medium flow path from the first heat medium flow path is performed. A drainage operation for removing the heat medium remaining in the pipe connection portion after the operation is performed, and a connection release operation for releasing the connection between the heat medium flow paths is performed after the drainage operation is performed. Thermal storage management system. The heat storage / radiation facility consists of a first heat storage / heat dissipation facility for supplying heat and a second heat storage / heat dissipation facility for heat demand,
In using the amount of heat generated in the first heat storage / dissipation facility by storing or transferring the removable heat storage container in the second heat storage / dissipation facility,
In the management stage, the detachable heat storage in a state where the second heat medium flow passage is released from the first heat medium flow passage of the first heat storage / radiation facility and the first heat medium flow passage of the second heat storage / radiation facility. The heat storage management system according to claim 1, wherein the container is stored or transported.   3. The heat storage management system according to claim 1, wherein the removable heat storage container is stored or transported in a state where the second heat medium flow path is filled with a heat medium in the management stage. 4. In order to store or transfer the removable heat storage container in a state where the heat medium in the second heat medium flow path is excluded in the management stage,
While eliminating the heat medium remaining in both the pipe connection portion and the second heat medium flow path in the drain operation,
After removing the residual gas remaining in the pipe connection portion and the second heat medium flow path in the exhaust operation, a heat medium is applied to both the pipe connection portion and the second heat medium flow path in the communication operation. The heat storage management system according to claim 1, wherein the heat storage management system is filled. While part of the heat medium is vaporized by depressurizing both the pipe connection part or the pipe connection part and the second heat medium flow path in the drainage operation, while removing the liquid heat medium,
In the exhaust operation, the pipe connection part or the heat medium remaining in both the pipe connection part and the second heat medium flow path is vaporized by the amount of heat supplied from the chemical heat storage material through the second heat exchanger. The said residual gas remaining in both the said pipe connection part or the said pipe connection part and the said 2nd heat-medium flow path by doing is excluded, The any one of Claims 1-4 characterized by the above-mentioned. Thermal storage management system.   The amount of heat supplied from the chemical heat storage material via the second heat exchanger uses sensible heat in the dehydration reaction of the chemical heat storage material or reaction heat in the hydration reaction of the chemical heat storage material. The heat storage management system according to claim 5. By supplying the low boiling point component that the heat medium contains or the heat medium is partially decomposed in the drain operation, the heat medium is removed from both the pipe connection part or the pipe connection part and the second heat medium flow path. While
The residual gas that remains in the pipe connection part or both the pipe connection part and the second heat medium flow path by supplying a low-boiling-point component that the heat medium contains or partly decomposes in the exhaust operation. The heat storage management system according to any one of claims 1 to 4, wherein the heat storage management system is excluded. While removing the heat medium from both the pipe connection part or the pipe connection part and the second heat medium flow path by supplying an inert gas in the drain operation,
In the exhaust operation, by reducing the pressure in both the pipe connection part or the pipe connection part and the second heat medium flow path, both the pipe connection part or the pipe connection part and the second heat medium flow path are provided. The heat storage management system according to any one of claims 1 to 4, wherein the remaining inert gas and the residual gas are excluded.

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