JP2989485B2 - Heat pump equipment operation method and heat pump equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of operating a heat pump facility and a heat pump facility for implementing the method.

[0002]

2. Description of the Related Art Conventionally, in a heat pump system, when performing a cold heat generation operation by a heat pump operation, heat exhaust heat generated thereby is released into the atmosphere, and in some cases, a part of the heat exhaust heat is used. To generate hot water for hot water supply.

[0003] Similarly, when performing the heat generation operation by the heat pump operation, the cold exhaust heat generated thereby is released into the atmosphere. In some cases, the cold exhaust heat is used by utilizing a part of the cold exhaust heat. For example, cold water for water supply was generated.

[0004]

However, in the conventional operation mode, when the temperature of the atmosphere as a heat radiation source is high in the cold heat generation operation, the heat release capability of the condenser is limited, and the coefficient of performance of the heat pump operation is greatly reduced. Problem with
Even if a part of the hot waste heat is used for generating hot water, the same problem occurs when the consumption of the hot water is small.

[0005] Further, also in the heat generation operation, when the temperature of the atmosphere as a heat source is low, the cold discharge capability (that is, heat collection capability) of the evaporator is limited, and the coefficient of performance of the heat pump operation is greatly reduced. Even if a part of the cold exhaust heat is used for generating cold water, the same problem occurs when the consumption of the cold water is small.

[0006] In view of the above circumstances, the object of the present invention is as follows.

[0007] A first object of the present invention is to secure a high capability of releasing warm exhaust heat in a cold heat generating operation and improve the coefficient of performance.

A second object of the present invention is to achieve the first object effectively while reducing the size of the equipment configuration.

A third object of the present invention is to provide the above-mentioned first or second embodiment.
An object of the present invention is to provide heat pump equipment suitable for achieving the object.

[0010] A fourth object of the present invention is to secure a high ability to discharge cold heat in the operation of generating heat and to improve the coefficient of performance.

A fifth object of the present invention is to effectively achieve the fourth object while reducing the size of the equipment configuration.

A sixth object of the present invention is to provide the above-mentioned fourth or fifth embodiment.
An object of the present invention is to provide heat pump equipment suitable for achieving the object.

[0013]

[Means for Solving the Problems]

[First characteristic configuration] A first characteristic configuration according to the present invention relates to a method of operating a heat pump facility, and stores heat exhaust heat as retained heat of a radiating medium.
Perform heat pump operation while discharging without cooling
Heating cold heat storage process and heat storage cold energy in this cold heat storage process
Along with performing the cooling by using a heat蓄留step of carrying out the cold generating operation by the heat pump operation while蓄留the heat exhaust heat as held heat of the heat radiating medium, the retention heat of the heat radiating medium The present invention has a recovery step of cooling the radiating medium by discharging it to the atmosphere or storing the radiating heat separately and storing the radiating medium to a state in which the radiating medium can be stored.

[Second feature configuration] A second feature configuration of the present invention specifies a method configuration suitable for implementing the first feature configuration, and uses a latent heat storage material as the heat dissipation medium. .

[Third characteristic configuration] [0015] A third characteristic configuration of the present invention relates to a heat pump equipment that performs the heat pump equipment operation method of the first or second characteristic configuration, and stores a cold generated by the heat pump operation.
And a heat exchanger that performs cooling using the stored heat of the tank,
Medium holding means for storing the heat exhaust heat generated in the cold heat generation operation by the heat pump operation performed in association with the cooling as the held heat of the held radiating medium; and for storing the cold heat in the tank.
The heat exhaust heat generated by the heat pump operation of
A heat exchanger that discharges without storing in the stage, and releases the retained heat of the heat radiating medium to the atmosphere, or cools the heat radiating medium with the separately stored exhaust cooling heat, There is provided a recovery means for recovering the held radiating medium in the medium holding means to a state capable of storing heat.

[Fourth Characteristic Configuration] A fourth characteristic configuration of the present invention relates to a method of operating a heat pump facility, wherein cold exhaust heat is not stored as retained cold of a medium for heat collection.
Heat pump operation while releasing heat to store heat
Heat storage process and the heat storage heat in this heat storage process
Along with performing the heating and have a heat蓄留step of carrying out the heat generating operation by the heat pump operation while蓄留the cold heat as held cold in the Tonetsu medium, the adopted by exhaust heat that separately蓄留A heating step of heating the heating medium, or releasing the cold stored in the heating medium to the atmosphere, and restoring the heating medium to a state capable of storing cold heat. .

[Fifth characteristic configuration] A fifth characteristic configuration of the present invention specifies a method configuration suitable for implementing the above-mentioned fourth characteristic configuration, and uses a latent heat storage material as the heat collection medium. is there.

[Sixth Characteristic Configuration] A sixth characteristic configuration according to the present invention relates to a heat pump equipment that performs the heat pump equipment operation method according to the fourth or fifth characteristic configuration, and stores heat generated by the heat pump operation.
And a heat exchanger for heating using the heat stored in the tank,
Medium holding means for storing cold exhaust heat generated in the heat generation operation by the heat pump operation performed in association with the heating as the held cold of the holding medium; and for storing the heat in the tank.
The heat exhausted by the heat pump operation of
Heat exchanger that discharges without storing in the stage, and heats the heat- collecting medium by separately stored exhaust heat, or discharges the retained cold heat of the heat-collecting medium to the atmosphere. And recovery means for recovering the medium for holding heat collection in the medium holding means to a state in which cold storage is possible.

[0019]

[Action]

[Operation of the first characteristic configuration] In the first characteristic configuration, in the exhaust heat storage step, the thermal exhaust heat is stored in the heat-dissipating medium that has been restored to a state in which thermal storage is possible in the previous recovery step. Since the cold heat generating operation is performed while the cold heat generating operation is being performed, the ability to release the warm exhaust heat can be kept high and stably regardless of the temperature of the atmosphere.

In the recovery process, the temperature of the atmosphere is lowered (for example, at night), by releasing the retained heat of the heat radiating medium to the atmosphere, or by another exhaust cooling heat (for example, from the corresponding facility). Storage of cold drainage)
By cooling the heat radiating medium with the stored and discharged heat, the heat radiating medium is restored to a state in which the heat can be efficiently stored in preparation for the heat storage in the next exhaust heat storage step.

[Operation of the Second Characteristic Configuration] In the second characteristic configuration, a phase change of the latent heat storage material from a solid phase to a liquid phase or a liquid phase to a gas phase In a state accompanied by a phase change to, the waste heat is stored as latent heat in the latent heat storage material.

In the recovery step, the latent heat storage material is changed back from the liquid phase to the solid phase, or from the gas phase to the liquid phase, and is restored to a state in which thermal storage is possible. .

[Operation of the Third Characteristic Configuration] In the third characteristic configuration, when the above-mentioned first or second characteristic configuration is implemented, the heat release medium is held in the medium holding means, so that the above-described heat discharge is achieved. In the storage process, the heat exhausted heat is stored in the medium holding means as the stored heat of the radiating medium.

In the above-mentioned recovery step, the recovery means can release the retained heat of the heat radiating medium to the atmosphere or cool the heat radiating medium with the waste heat stored separately. The stored heat radiating medium in the medium holding means is restored to a state in which heat can be stored in preparation for heat storage in the next exhaust heat storage step.

[Operation of the Fourth Characteristic Configuration] In the fourth characteristic configuration, in the exhaust heat storage process, the heat recovery medium which has been restored to a state in which cold heat storage is possible in the previous recovery process is subjected to the cold heat extraction process. Since the heat generation operation is performed while storing heat, in the heat generation operation, the ability to release cold exhaust heat (that is, the heat collection ability) can be kept high and stable regardless of the temperature of the atmosphere.

As a recovery process, in a situation where the storage of another exhaust heat (for example, hot waste water from the corresponding facility) has advanced, the heating medium is heated with the stored exhaust heat, or In a situation where the temperature of the atmosphere rises (for example, in the daytime), the cold heat retained in the heat-collecting medium is released into the atmosphere (that is, heat is collected from the atmosphere), thereby storing the heat-collecting medium in the next waste heat storage. Efficient cold energy storage in preparation for cold energy storage during the process
Recover to a state where you can stay .

[Function of the Fifth Characteristic Configuration] In the fifth characteristic configuration, a phase change from a liquid phase to a solid phase of a latent heat storage material or a gas phase to liquid In a state accompanied by a phase change to a phase, the cold exhaust heat is stored as latent heat in the latent heat storage material.

In the recovery step, the latent heat storage material is returned from the solid phase to the liquid phase to change its phase or from the liquid phase.
The phase is changed back to the gaseous phase, and the state is restored to a state where cold heat storage is possible.

[Operation of the Sixth Characteristic Configuration] In the sixth characteristic configuration, when the above-described fourth or fifth characteristic configuration is carried out, by holding the heat collection medium in the medium holding means, In the heat storage step, the cold exhaust heat is stored in the medium holding means as the stored cold heat of the medium for heat collection.

In the above-mentioned recovery step, the heating means is heated by the waste heat stored separately, or the cold stored in the heating medium is discharged to the atmosphere by the recovery means. Then, the medium for holding heat collection in the medium holding means is restored to a state where cold heat can be stored in preparation for cold heat storage in the next exhaust heat storage step.

[0031]

【The invention's effect】

[Effects of the first characteristic configuration] According to the first characteristic configuration of the present invention, the capability of releasing the heat exhaust heat can be maintained stably high regardless of the temperature of the atmosphere. Can be improved.

[Effect of the Second Characteristic Configuration] According to the second characteristic configuration of the present invention, since the thermal exhaust heat is stored as latent heat, a large amount of thermal exhaust heat is stored as compared with storing the thermal exhaust heat as sensible heat. The heat can be stored in a small amount of heat dissipation medium, and thereby the improvement of the coefficient of performance of the cold heat generation operation according to the first characteristic configuration can be effectively achieved while reducing the size of the facility configuration.

[Effects of Third Feature Configuration] According to the third feature configuration of the present invention, the method of operating the heat pump equipment according to the first or second feature configuration can be accurately performed, and the cold heat generation operation having a high coefficient of performance can be performed. Can be provided.

[Effect of Fourth Characteristic Configuration] According to the fourth characteristic configuration of the present invention, the capability of releasing cold exhaust heat can be kept high and stably irrespective of the temperature of the atmosphere. Can improve the coefficient of performance.

[Effect of Fifth Characteristic Configuration] According to the fifth characteristic configuration of the present invention, since the cold exhaust heat is stored as latent heat, compared to storing the cold exhaust heat as sensible heat,
A large amount of cold exhaust heat can be stored with a small amount of heat collection medium, thereby effectively improving the coefficient of performance of the heat generation operation by the fourth characteristic configuration while reducing the size of the equipment configuration.

[Effect of the Sixth Characteristic Configuration] According to the sixth characteristic configuration of the present invention, the method of operating the heat pump equipment according to the fourth or fifth characteristic configuration can be properly performed, and the heat generation operation having a high coefficient of performance can be performed. Can be provided.

[0037]

【Example】

[First Embodiment] FIG. 1 shows the overall equipment configuration, FIG. 2 shows the arrangement of the equipment, and FIGS. 6 to 10 show the operating state of a typical operation mode in the cooling operation.
Indicates an operation state of a typical operation mode in the heating operation.

In the figure, reference numeral 1 denotes an indoor temperature control unit for controlling the temperature of a room as a cooling / heating target area. The indoor temperature control unit 1 includes a cold / hot water heat exchanger 2 and a cold / hot water heat exchanger 2. A fan 3 is provided for supplying air IA whose temperature has been adjusted to the room.

As for the indoor temperature control unit 1, a plurality of units may be arranged in each of the floors and rooms of the building so as to correspond to each other.
Any of the modes in which only the unit is equipped may be adopted.

Reference numeral 4 denotes an indoor refrigerant unit provided for controlling the indoor temperature as required. The indoor refrigerant unit 4 includes a refrigerant heat exchanger 5 and air controlled by the refrigerant heat exchanger 5. A fan 6 for feeding the IA into the room is provided.

Reference numeral 7 denotes a hot / cold water faucet, which may take a form in which a plurality of hot / cold faucets are dispersedly provided or a form in which only one faucet is provided as a whole facility.

An outdoor unit 8 is installed on a rooftop or the like together with a brine cooling tower 9 described later.
Has a brine heat exchange tank 10, a refrigerant heat exchanger 11 for brine, a refrigerant heat exchanger 12 for air, a fan 13,
Equipped with a brine / air heat transfer means 14, a brine / refrigerant heat exchanger 15, and a compressor 16, and equipped with valves such as an expansion valve (or capillary tube) 17, a four-way valve 18, and an economizer unit 19. is there.

The refrigerant heat exchanger for brine 11, the refrigerant heat exchanger for air 12, the brine / refrigerant heat exchanger 15, the compressor 16, the expansion valve 17, the four-way valve 18, and the economizer unit 19 are provided with the indoor refrigerant described above. A heat pump circuit is configured together with the refrigerant heat exchanger 5 in the unit 4. The refrigerant heat exchanger 11 for brine is immersed and disposed in the brine L of the brine heat exchange tank 10. The heat exchanger 12 is disposed in an internal air passage 20 through which air is passed by a fan 13.

The economizer unit 19 is provided in the cooling operation in which the refrigerant heat exchanger 11 for brine and the refrigerant heat exchanger 12 for air function as a condenser. Among the refrigerants passing through 11, the sufficiently condensed liquid refrigerant is sent to the expansion valve 17 bypassing the refrigerant heat exchanger for air 12, and the vapor refrigerant having insufficient condensation is exchanged with the refrigerant heat for air. In the heating operation in which the refrigerant is sufficiently condensed by the heat exchanger 12 and functions to separate the refrigerant so as to be sent to the expansion valve 17, and the refrigerant heat exchanger 11 for brine and the refrigerant heat exchanger 12 for air function as an evaporator. Of the refrigerant passing through the air-refrigerant heat exchanger 12 positioned upstream on the refrigerant path, the sufficiently evaporated dry vapor refrigerant is bypassed through the brine-refrigerant heat exchanger 11 and compressed. The refrigerant is returned to the suction side of the compressor 16 and the moisture vapor refrigerant and a part of the liquid refrigerant, which have not been sufficiently evaporated, are sufficiently evaporated in the refrigerant heat exchanger 11 for brine and then returned to the suction side of the compressor 16. As described above, the refrigerant separating functions effectively improve the coefficient of performance of the heat pump operation.

In the economizer unit 19 (see FIG. 3), 19A and 19B are gas-liquid separators,
In some cases, together with the economizer unit 19, the refrigerant heat exchanger 11 for brine and the refrigerant heat exchanger 12 for air are selectively shut off for one of the refrigerants and only the other for the condenser or A selection valve mechanism for switching the refrigerant path so as to function as an evaporator is provided.

The brine / air heat transfer means 14 connects the ventilation air A in the internal air passage 20 and the brine L in the brine heat exchange tank 10 at a position upstream of the refrigerant heat exchanger 12 for air on the air path. In the cooling operation in which heat is to be radiated (that is, heat is discharged), only the heat transfer from the brine side to the ventilation air side is performed by the brine / air heat transfer means 14 in the cooling operation in which heat release (that is, heat release) is performed. While allowing heat extraction (in other words, cold discharge)
In the heating operation to be performed, only the heat transfer from the ventilation air side to the brine side is permitted by the brine / air heat transfer means 14.

As for the specific structure of the brine / air heat transfer means 14, as shown in FIGS. 3 and 4, the low-temperature end (condensing end) is located in the upper half of the internal air passage 20, and the high-temperature end is located. A plurality of heat-dissipating heat pipes 14A in which the (evaporation end) is immersed in brine L in the brine heat exchange tank 10
The high-temperature end (evaporation end) is located in the lower half of the internal air passage 20, and the low-temperature end (condensation end) is located in the brine heat exchange tank 10.
A plurality of heat collecting heat pipes 14B immersed and arranged in the brine L in the above, and a lower portion that allows air to pass only to the upper half portion of the internal air passage 20 in a state where ventilation in the lower half portion of the internal air passage 20 is cut off Internally, the damper 21 switches between a wind-shielding state and an upper wind-shielding state in which ventilation in the upper half of the internal air passage 20 is blocked and air only passes through the lower half of the internal air passage 20. It is provided in the air passage 20.

That is, in the cooling operation, the damper 21 as the switching means is in the lower wind-shielding state, and the air is intensively passed through the heat-dissipating heat pipe 14A at the low-temperature end, so that it is sent to the internal air passage 20. When the temperature of the air A is lower than the temperature of the brine L in the brine heat exchange tank 10, the heat pipe 14 </ b> A having a temperature gradient of a forward gradient is caused to perform a heat transfer function (that is, a heat dissipation function). The air A sent to the passage 20 is supplied to the brine heat exchange tank 10.
In the situation where the temperature is higher than the brine L, the heat collecting heat pipe 14B whose temperature gradient becomes a forward gradient performs the heat transfer function (that is, the heat collecting function), the air with respect to the high-temperature end arrangement portion of the heat collecting heat pump 14B. It is blocked by having blocked the passage, so that in cooling operation,
In a situation where the air A sent to the internal air passage 20 is lower in temperature than the brine L in the brine heat exchange tank 10, while the heat of the brine L is efficiently discharged to the blast air A by the heat radiating heat pipe 14 </ b> A, In a situation where the air A sent to the air passage 20 is higher in temperature than the brine L in the brine heat exchange tank 10, the retained heat of the ventilation air A is prevented from being transferred to the brine side.

On the contrary, in the heating operation, the damper 21 as the switching means is in the upper wind-shielded state, and the air is intensively passed through the high-temperature end arrangement portion of the heat-collecting heat pipe 14B so that the internal air passage is formed. When the temperature of the air A sent to 20 is higher than the temperature of the brine L in the brine heat exchange tank 10, the heat collecting heat pipe 14B whose temperature gradient is a forward gradient has a heat transfer function (that is, a heat collecting function). ,
On the other hand, the air A sent to the internal air passage 20 is supplied to the brine heat exchange tank 1.
In a situation where the temperature is lower than the brine L at 0, the heat transfer function of the heat radiating heat pipe 14A whose temperature gradient is a forward gradient (that is, the heat radiating function) means that the passage of air to the low-temperature end arrangement portion of the heat radiating heat pump 14A. When the heating operation is performed, the air A sent to the internal air passage 20 is blocked by the brine heat exchange tank 10.
In the situation where the temperature is higher than the brine L in the above, while the retained heat of the ventilation air A is efficiently collected by the brine L by the heat collection heat pipe 14B, the air A sent to the internal air passage 20 is in the brine heat exchange tank 10. In a situation where the temperature is lower than the brine L, the retained heat of the brine L is prevented from being transferred to the ventilation air side.

Internal air passage 20 and refrigerant heat exchanger 1 for air
The heat-exchanged air A that has passed through 2 is released into the atmosphere, while the air supply 22 is a duct that supplies air A as a heat-dissipating or heat-collecting source to the internal wind path 20. The duct 22 supplies the outside air to the internal air passage 20 as a heat radiation source in the cooling operation, and the air (for example, the air heated by the solar heat collector or the indoor air heated by the solar heat collector) as the heat collection source in the heating operation. (Air from which warm exhaust heat has been recovered) is supplied to the internal air passage 20, or external air is supplied to the internal air passage 20 as a discharge / heat source in both the cooling operation and the heating operation.

Reference numerals 23, 24, 25, and 26 denote hot water tanks, cold water tanks, hot water tanks, and brine tanks formed and arranged on the underground foundation layer and the like in the building. A hot water brine heat exchanger 27 for exchanging heat with the brine L is provided, and a cold water tank 24 is provided with a cold water brine heat exchanger 28 for exchanging heat between the stored water C in the tank and the brine L. It is.

In the figure, V1 is a group of switching valves for switching the brine path for the hot water brine heat exchanger 27 and for switching the brine path for the cold water brine heat exchanger 28. Brine heat exchanger for hot water 2
7 and each of the cold water brine heat exchangers 28, a brine circulating state with the brine / refrigerant heat exchanger 15, and a brine circulation with the brine heat exchange tank 10. Is switched to the tank circulation state.

The hot water tank 25 is provided with hot water E discharged from indoors.
This is a tank for collecting the discharged hot water E for the purpose of utilizing the retained heat of (for example, bath tub hot water or general wash water). In this hot water tub 25, the hot water E in the tub and the stored water C in the cold water tub 24 are stored. And a heat exchanger 30 for a brine tank for exchanging heat between the hot water E in the tank and the storage brine L in the brine tank 26.

The brine tank 26 is a medium holding means for holding the brine L used as a heat release medium in the apparatus. In the cooling operation, the exhaust heat generated due to the generation of the cold heat by the heat pump operation is transferred to the brine tank. In the heating operation, cold exhaust heat generated due to the generation of heat by the heat pump operation is temporarily stored as cold heat in the brine tank.
The brine cooling tower 9 in addition to the brine circulation in the hot water tank 25 with the heat exchanger 30 for the brine tank.
And brine circulation with the above-mentioned brine heat exchange tank 10.

The brine radiator 3 for radiating the circulating brine L between the brine cooling tower 9 and the brine tank 26 is provided.
1. A fan 32 that ventilates outside air as a heat radiation source to the brine radiator 31 and a water sprayer 33 that sprays water to the brine radiator 31 are provided. By evacuating the vaporized heat from the base 31 and evaporating it into the outside air, the brine radiator 31 efficiently cools the circulating brine L.

Reference numeral 34 denotes a heat source water W collected as a heat radiating source or a heat collecting source (for example, seawater, sewage, or river water).
A heat exchanger for a water heat source for radiating or collecting the brine L, and a heat exchanger for an auxiliary heat source 35 for radiating or collecting the brine L to another air heat source, a water heat source or an underground heat source. In addition, the brine heat exchange tank 10 in the outdoor unit 8 is configured to circulate the brine between the hot water brine heat exchanger 27, the cold water brine heat exchanger 28 or the brine tank 26, Brine circulation is appropriately performed between the heat exchanger 35 and the heat exchanger 35 for an auxiliary heat source, whereby the air A guided by the duct 22, the hot water E collected in the hot water tank 25, or the brine cooling tower In addition to the outside air ventilated at 9,
Various configurations of the heat radiating source or the heat collecting source can be used for the heat pump operation regardless of the gas phase, the liquid phase, and the solid phase.

V2 is a switching valve group for switching between a cooling state in which the cold / hot water heat exchanger 2 of the indoor temperature control unit 1 circulates water with the cold water tank 24 and a heating state in which water circulates with the hot water tank 23. P is a pump disposed in each flow path, and 36 is an auxiliary water heater of a gas-fired type, an electric heat type or the like.

V3 is a group of switching valves for switching the hot / cold faucet 7 between a cold water supply state connected to the cold water tank 24 and a hot water supply state connected to the hot water tank 23. Are omitted and only the valve symbols in the figure are shown.

Next, one embodiment of the cooling operation will be described in the following (A) to (F) according to a time chart shown in FIG.

(A) The “cold heat storage mode” (FIGS.
9), from 22:00 to 08 o'clock, the brine / refrigerant heat exchanger 15 uses the circulating brine L by the evaporator function of the brine / refrigerant heat exchanger 15 in the heat pump operation.
Is cooled, and the stored water C in the cold water tank 24 is cooled (for example, from 12 ° C. to 0 ° C.) by the brine circulation between the brine / refrigerant heat exchanger 15 and the brine heat exchanger 28 for cold water.

(A) As the “thermal heat storage mode” (see FIG. 8), from 24 o'clock to 03 o'clock, in the heat pump operation in the “cold heat storage mode”, the air ventilation in the internal air passage 20 is stopped ( Further, in some cases, the brine L in the brine heat exchange tank 10 is heated by the condenser function of the refrigerant heat exchanger 11 for brine in a state in which the supply of the refrigerant to the refrigerant heat exchanger 12 for air is also cut off. The brine heat exchange tank 10 and the hot water brine heat exchanger 27
And the stored water H in the hot water tank 23
(For example, from 35 ° C. to 55 ° C.).

(C) As a “hot water tank recovery mode” to be carried out as required before the “thermal heat storage mode” (see FIG. 6), the damper 21 is in a lower wind shielding state from 22:00 to 24:00. In a state where air is passed through the internal air passage 20 (and in some cases, the supply of refrigerant to the refrigerant heat exchanger 11 for brine is cut off and only the refrigerant heat exchanger 12 for air functions as a condenser), When the heat pump operation in the “cold heat storage mode” is performed, the brine heat exchange tank 1
0 and the hot water brine heat exchanger 27, thereby cooling the stored water H in the hot water tank 23 with the heat radiating function of the heat radiating heat pipe 14A (for example, 55 ° C.).
To 35 ° C).

The "hot water tank recovery mode" is generated by releasing a hot water tank held heat, which is one of the stored heats in the equipment, to the outside of the equipment in advance, and then performing a heat pump operation for generating cold heat. The purpose of the present invention is to secure a large amount of temporary storage in the equipment against the exhaust heat of the heat, thereby obtaining a high coefficient of performance in the subsequent heat pump operation for generating the cold heat. Is large (for example, the amount of hot water supplied from the hot / cold water faucet 7) before the implementation of "", and the temperature of the stored water in the hot water tank 23 has already dropped to a certain level (for example, 35 ° C) or less. In this case, it is unnecessary to execute the “hot water tank recovery mode”.

If it is not necessary to execute the “hot water tank recovery mode”, the heat pump operation in the “cold heat storage mode” between 22:00 and 24:00 (see FIG. 7) is performed by setting the damper 21 to the lower windshield. In a state in which both the heat exchanger for air 12 and the refrigerant heat exchanger 11 for brine function as a condenser while the heat pipe 14A for heat dissipation functions as a heat-dissipating heat pipe by ventilating the air through the internal air passage 20 as a state. carry out.

(D) In the “brine tank first recovery mode” (see FIGS. 6 to 9), the brine cooling tower 9 and the brine tank 26 are operated while the brine cooling tower 9 is operated from 20:00 to 08.00. Circulates brine between
The stored brine L in the brine tank 26 is cooled (for example, from 37 ° C. to 2 ° C.) in cooperation with the “brine tank second recovery mode” described below.
(Cool to 7 ° C).

(E) As the “brine tank second recovery mode” (see FIG. 9), the damper 2 is used between 03 and 08 o'clock.
1 is a lower windshield state in which air is passed through the internal air passage 20 (and, in some cases, the refrigerant heat exchanger 11 for brine).
The supply of refrigerant to the air and shut off the refrigerant to heat exchanger 1 for air.
2 in a state where only the condenser 2 functions as a condenser), the brine is circulated between the brine heat exchange tank 10 and the brine tank 26 in order to perform the heat pump operation in the “cold heat storage mode”. The stored brine L in the brine tank 26 is cooled in cooperation with the “brine tank first recovery mode” using the heat radiation function of the 14A.

That is, the “brine tank first recovery mode” and the “brine tank second recovery mode” are similar to the “hot water tank recovery mode” in that the brine tank holding heat, which is one of the holding heats in the equipment, is used. By releasing the heat to the outside of the facility in advance, a large amount of temporary storage in the facility with respect to the heat exhaust heat generated by the heat pump operation for the subsequent generation of cold heat is ensured. The goal is to obtain a high coefficient of performance.

(F) As the “cooling execution mode” (FIG. 10)
), From 08 o'clock to 20 o'clock, the stored water C in the chilled water tank 24 is cooled by the evaporator function of the brine / refrigerant heat exchanger 15 during the heat pump operation, while the indoor temperature is kept low. Water is circulated between the cold / hot water heat exchanger 2 of the temperature control unit 1 and the cold water tank 24, and the fan 3 of the indoor temperature control unit 1 is operated. Cool.

Further, in the heat pump operation in the “cooling execution mode”, the damper 21 is in the lower wind-shielding state, and the air is passed through the internal air passage 20, and the brine is circulated between the brine heat exchange tank 10 and the brine tank 26. The refrigerant heat exchanger for air 12 and the refrigerant heat exchanger 11 for brine
Of the internal air passage 20 while the heat exhausted during the heat pump operation is temporarily stored in the brine tank 26.
Release to

In this "cooling execution mode", even if the temperature of the air A sent to the internal air passage 20 is higher than the brine temperature of the brine heat exchange tank 10, the heat transfer of the heat collecting heat pipe 14B is performed. Heat transfer from the ventilated air side to the brine side due to the function is prevented by the damper 21 being in the lower wind shielding state, and the brine temperature of the brine heat exchange tank 10 is reduced to the temperature of the air A sent to the internal air passage 20. In a higher temperature situation, the heat retained by the brine L is released to the ventilation air A by the heat transfer function of the heat radiating heat pipe 14A because the damper 21 is in the lower wind shielding state.

In short, in the cooling operation of the present embodiment, the “cooling execution mode” is a waste heat storage step in which the cooling heat generation operation is performed while storing the heated waste heat as the retained heat of the brine L. On the other hand, the "brine tank first recovery mode" and the "brine tank second recovery mode" release the retained heat of the brine L as a heat dissipation medium into the atmosphere, and the brine L can be stored at a high temperature. It is a recovery process to recover to a normal state.

As the equipment configuration, the brine tank 26 constitutes a medium holding means for storing hot exhaust heat generated in the cold heat generating operation as held heat of the held brine L (that is, held heat dissipation medium). The brine / air heat transfer means 14 and the brine cooling tower 9 release the retained heat of the brine L as a heat radiating medium into the atmosphere, so that the brine L in the medium retaining means can be heated and stored. A recovery means for recovering the data is constituted.

Next, one embodiment of the heating operation will be described with reference to the timing chart shown in FIG.

(A) The “thermal heat storage mode” (FIG. 12)
Or from FIG. 13), from 22:00 to 08 o'clock, the brine / refrigerant heat exchanger 15 heats the circulating brine L by the condenser function of the brine / refrigerant heat exchanger 15 in the heat pump operation. By the brine circulation between the heat exchanger 15 and the hot water brine heat exchanger 27, the stored water H in the hot water tank 23 is heated (for example, 30).
From 55 ° C to 55 ° C).

In the heat pump operation in the “thermal heat storage mode”, the damper 21 is in the upper wind-shielding state, and the internal air passage 20 is ventilated with air.
And the refrigerant | coolant heat exchanger 11 for brine is made to function as an evaporator.

(I) As the “cold water tank recovery mode” (FIG. 1)
2 or FIG. 15), from 14:00 to 05:00, the heat exchanger 29 for the cold water tank in the cold water tank 24 and the hot water tank 25.
Then, the stored water C in the cold water tank 24 is heated (for example, from 7 ° C. to 10 ° C.) using the retained heat of the hot water E.

(C) In the “brine tank recovery mode” (see FIG. 12 or FIG. 15), between 14:00 and 05:00, between the brine tank 26 and the heat exchanger 30 for the brine tank in the hot water tank 25. In this manner, the stored brine L in the brine tank 26 is heated (for example, from -4 ° C to 6 ° C) by utilizing the retained heat of the hot water E.

In other words, the above-mentioned "cold water tank recovery mode" and "brine tank recovery mode" are used to release the cold water held by the cold water tank or the cold water held by the brine tank, which is the cold energy held in the equipment, in advance to the outside of the equipment. It is an object of the present invention to secure a large amount of temporary storage in the equipment with respect to cold exhaust heat generated by a heat pump operation for generating heat, thereby obtaining a high coefficient of performance in a subsequent heat pump operation for generating heat.

After the “cold water tank recovery mode” and the “brine tank recovery mode” are performed, the entire amount of the hot water E in the hot water tank 25 is drained, and thereafter, the accumulation of the indoor hot water E is started again. .

(E) After the above-mentioned “cold water tank recovery mode”, a “cold heat storage mode” to be implemented as necessary (FIG. 13)
), From 05 o'clock to 08 o'clock, in parallel with the heat pump operation in the “thermal heat storage mode”, brine is circulated between the brine heat exchange tank 10 and the brine heat exchanger 28 for chilled water. The stored water C in the cold water tank 24 is cooled (for example, from 10 ° C. to 0 ° C.).

The "cooling heat storage mode" is implemented when it is predicted that the consumption of the cooling water held in the cooling water tank (for example, the cooling heat consumption by winter cooling, which will be described later) is large. When it is predicted that the consumption of the cold water possessed by the cold water tank is particularly large, in the parallel heat pump operation of the “thermal heat storage mode”, the air ventilation in the internal air passage 20 is stopped, and in some cases, the refrigerant for air is used. The supply of the refrigerant to the heat exchanger 12 may be cut off to allow only the refrigerant heat exchanger 11 for brine to function as an evaporator, thereby further lowering the cooling temperature of the water C stored in the cold water tank.

(O) As the “heating execution mode” (FIG. 14)
Or from FIG. 15), from 08 o'clock to 20 o'clock, while the stored water H in the hot water tank 23 is being heated by the condenser function of the brine / refrigerant heat exchanger 15 in the heat pump operation in the same manner as in the “thermal heat storage mode”. In addition, water is circulated between the cold / hot water heat exchanger 2 of the indoor temperature control unit 1 and the hot water tank 23, and the fan 3 of the indoor temperature control unit 1 is operated, thereby consuming heat stored in the hot water tank 23. While heating the room.

Further, in the "heating execution mode", the air-refrigerant heat exchanger 12 and the brine-refrigerant heat exchanger 11 are moved to the evaporator while the damper 21 is in the upper wind-shielding state and air is passed through the internal air passage 20. In contrast to the heat pump operation for functioning, from 08 o'clock to 14 o'clock, the brine circulation between the brine heat exchange tank 10 and the brine tank 26 is performed in parallel (see FIG. 14), and the cooling and heating in the heat pump operation is performed. The exhaust heat is released to the ventilation air A in the internal air passage 20 while a part of the exhaust heat is temporarily stored in the brine tank 26.

In this "heating execution mode", even if the temperature of the air A sent to the internal air passage 20 is lower than the brine temperature of the brine heat exchange tank 10, the heat transfer function of the heat-dissipating heat pipe 14A is used. The heat transfer from the brine side to the ventilation air side is prevented by the damper 21 being in the upper wind shielding state, and the brine temperature of the brine heat exchange tank 10 is lower than the temperature of the air A sent to the internal air passage 20. When the temperature is low, the heat transfer function of the heat collection heat pipe 14B causes the retained heat of the ventilation air A to be collected in the brine L by the damper 21 being in the upper wind shielding state.

(C) In the “winter cooling mode” to be carried out as required, when a cooling required room is generated, the cold / hot water heat exchanger 2 of the indoor temperature control unit 1 for the required cooling room (for example, a room where OA equipment is installed). The cooling water is circulated between the cooling water tank 24 and the fan 3 of the indoor temperature control unit 1 is operated, thereby cooling the required cooling room while consuming the stored heat in the cooling water tank 24.

In the above cooling operation and heating operation,
Although the use example of the indoor refrigerant unit 4 has been omitted, the case where cooling is performed in a state where the stored heat of the cold water tank 24 is used, the case where heating is performed in a state where the stored heat of the hot water tank 23 is used, or a water leakage accident occurs. In the case of cooling or heating an unacceptable room, for example, cooling the target room by operating the fan 6 while operating the refrigerant heat exchanger 5 of the indoor refrigerant unit 4 as an evaporator, or exchanging the refrigerant heat of the indoor refrigerant unit 4 The operation of the fan 6 to heat the target room while the unit 5 functions as a condenser is performed.

In short, in the heating operation of the present example, the first half of the “heating execution mode” uses the cold L
The exhaust heat storage step is a storage heat recovery process in which the heat generation operation is performed while storing the stored cold heat. On the other hand, the above-described “brine tank recovery mode” is configured such that the brine L as a heat-collecting medium is stored using the separately stored exhaust heat. Is heated, and the brine L is restored to a state where cold energy can be stored.

As for the equipment configuration, the brine tank 26 constitutes a medium holding means for storing the cold exhaust heat generated in the heat generation operation as the held cold heat of the held brine L (that is, the held heat collecting medium). Further, the heat exchanger 30 for the brine tank in the hot water tank 25 heats the brine L as a heat collection medium with the waste heat stored separately.
A recovery means for recovering the brine L in the medium holding means to a state where cold heat can be stored is constituted.

[Second Embodiment] Next, a second embodiment will be described with reference to FIG.

In the figure, reference numeral 100 denotes an indoor heat exchange unit. The indoor heat exchange unit 100 includes a chilled / hot water heat exchanger 101, a refrigerant heat exchanger 102, and the chilled / hot water heat exchanger 101 and the refrigerant heat exchange unit. Equipped with a fan 103 for sending the air IA temperature-controlled by the vessel 102 into the room,
The cold / hot water heat exchanger 101 and the refrigerant heat exchanger 102 are configured to allow mutual heat exchange.

104 is a refrigerant heat exchanger for air, 105
Is a fan that ventilates outside air A to the refrigerant heat exchanger 104 for air, 106 is a brine / refrigerant heat exchanger, 107 is a compressor, 108 is an expansion valve, and 109 is a four-way valve. 102, a refrigerant heat exchanger for air 104, and a brine / refrigerant heat exchanger 106 constitute a compression-type heat pump circuit together with a compressor 107, an expansion valve 108, and a four-way valve 109 in the form of an evaporator or a condenser. I do.

Reference numeral 110 denotes a heat storage tank for storing cold or hot water, 111 denotes a brine tank, and the heat storage tank 110 enables the circulation of cold and hot water with the cold / hot water heat exchanger 101. Brine circulation between the brine / refrigerant heat exchanger 106 is enabled.

Reference numeral 112 denotes a chemical heat pump device for pumping heat utilizing heat absorption and heat generation due to a chemical change of the medium, and has, as main components, first and second heat generating / absorbing devices 113 for circulating the medium between the two. , 114, and a medium four-way valve 115 for switching the medium circulation direction between the first heat-and-heat absorber 113 and the second heat-and-heat absorber 114. The medium circulation direction is switched by the medium four-way valve 115. The heat-dissipating operation in which the first heat-sink 113 functions as a heat absorber and the second heat-sink 114 functions as a heat absorber, and the first heat-sink 113 functions as a heat absorber Further, the configuration is such that the operation is switched to a heat collecting operation in which the second heat generating / absorbing device 114 functions as a heating device.

[0094] Then, the first shot, the heat absorber 113, the air A after passing through the pair air-refrigerant heat exchanger 104 and a pair gas heat exchanger structure to be heat exchanged, while the second shot The heat absorber 114 has a liquid heat exchanger structure with the brine L as a heat exchange target.

The above-mentioned brine tank 111 is a medium holding means for holding the above-mentioned brine L used as a medium for heat release and collection in the apparatus. In the cooling operation, the hot exhaust heat generated due to the generation of cold by the operation of the compression heat pump. Is temporarily stored as brine tank holding heat, and in the heating operation, cold exhaust heat generated due to the generation of heat due to the operation of the compression heat pump is temporarily stored as brine tank holding cold heat. , The switching of the brine circulation path by the switching valve group V10,
The mode is switched between a compression circulating state in which brine is circulated with the refrigerant heat exchanger 106 and a chemical circulating state in which brine is circulated with the second heat generating / absorbing unit 114 in the chemical heat pump device 112. .

Note that P is a pump provided in each flow path.

The cooling operation is roughly classified into two modes. The cooling operation is performed by storing cold heat in the heat storage tank 110 and the brine tank 111.
A cooling heat storage / recovery mode for restoring the air conditioner to a state capable of storing heat, and a cooling execution mode for cooling the room. Next, an embodiment of the cooling operation will be described.

(Cooling heat storage / recovery mode) This “cooling heat storage / recovery mode” is mainly performed at night, and the indoor heat exchange unit 10 is used as a cooling heat generating operation of the compression heat pump.
0, the compressor 107 is operated in a state where the refrigerant heat exchanger 102 functions as an evaporator. On the other hand, mutual heat exchange between the refrigerant heat exchanger 102 and the cold / hot water heat exchanger 101 in the indoor heat exchange unit 100 is performed. , And water circulation between the heat storage tank 110 and the cold / hot water heat exchanger 101,
The storage water CH of 0 is cooled, and the cold heat is stored in the heat storage tank 110.

The above-mentioned cold heat generation operation of the compression heat pump is performed in a state where the refrigerant heat exchanger 104 for air functions as a condenser. In the refrigerant heat exchanger 104, the air is discharged to the outside air A.

On the other hand, the chemical heat pump device 112
Performs a heat-dissipating operation in which the first heat-sink 113 functions as a heater and the second heat-sink 114 functions as a heat absorber. On the other hand, the brine tank 111 carries out a chemical circulation in which the brine is circulated between the second heat generating / absorbing unit 114 and the brine, thereby releasing the temperature of the brine storing heat from the first generating / heat absorbing unit 113 to the outside air A. In the embodiment, the storage brine L in the brine tank 111 is cooled (for example, from 37 ° C. to 27 ° C.).

In other words, by releasing the heat stored in the brine tank to the outside of the facility in advance, the amount of temporary storage in the brine tank 111 with respect to the exhaust heat generated by the subsequent operation of the compression heat pump for generating cold heat can be reduced. Large secure,
Thereby, a high coefficient of performance is obtained in the subsequent operation of the compression heat pump for generating cold heat.

(Cooling execution mode) This “cooling execution mode” is mainly implemented in the daytime, and the stored cold water CH in the heat storage tank 110 is
Is circulated to the cold / hot water heat exchanger 101 of the indoor heat exchange unit 100, and the fan 103 of the indoor heat exchange unit 100 is operated, thereby cooling the room while consuming the stored heat in the heat storage tank 110. I do.

If necessary, for example, when the cooling load is large, in addition to the cooling water circulation for the cold / hot water heat exchanger 101, the refrigerant heat exchanger 102 of the indoor heat exchange unit 100
Is operated in parallel with the compression heat pump that functions as an evaporator, thereby causing the refrigerant heat exchanger 102 of the indoor heat exchange unit 100 to cool the ventilation air IA together with the cold / hot water heat exchanger 101.

When the temperature of the outside air A is low, the above-described cold heat generation operation of the compression heat pump is performed in a state where the refrigerant heat exchanger 104 for air functions as a condenser, but when the temperature of the outside air A is high. The cold heat generation operation of the compression heat pump in a state where both the refrigerant heat exchanger for air 104 and the brine / refrigerant heat exchanger 106, or only the brine / refrigerant heat exchanger 106 functions as a condenser. Implemented, and for this cold heat generation operation,
The brine tank 111 is circulated to the brine / refrigerant heat exchanger 106 in a pair-compression circulating state in which brine is circulated between the brine tank 111 and the brine tank 111. Continue the cold heat generation operation of the compression heat pump in the form of temporary storage.

In short, in the cooling operation according to the second embodiment, the above-mentioned “cooling execution mode” uses the exhaust heat of the brine L
This is an exhaust heat storage process in which a cold heat generation operation is performed while storing the stored heat as the stored heat, whereas the “cooling heat storage / recovery mode” uses the stored heat of the brine L as the heat dissipation medium in the atmosphere. To a recovery step of recovering the brine L to a state in which the thermal storage is possible.

As for the equipment configuration, the brine tank 111 constitutes a medium holding means for storing the warm exhaust heat generated in the cold heat generation operation as the held heat of the held brine L (that is, the held radiating medium). The chemical heat pump device 112 constitutes recovery means for releasing the retained heat of the brine L as a heat radiating medium into the atmosphere and restoring the brine L of the medium retaining means to a state where the heat can be stored. .

On the other hand, the heating operation is roughly classified into two modes, a "heat storage mode for heating" in which heat is stored in the heat storage tank 110, and a recovery operation in which the room is heated and the brine tank 111 can be stored in a cold state. The heating operation / recovery mode is performed. Next, an embodiment of the heating operation will be described.

(Heat storage mode for heating) This "heat storage mode for heating" is mainly performed at night, and causes the refrigerant heat exchanger 102 in the indoor heat exchange unit 100 to function as a condenser as a heating operation of the compression heat pump. The compressor 107 is operated in the state, and the indoor heat exchange unit 1
00, the mutual heat exchange between the refrigerant heat exchanger 102 and the cold / hot water heat exchanger 101, and the heat storage tank 110 and the cold / hot water heat exchanger 1
01, the stored water C in the heat storage tank 110
H is heated and heat is stored in the heat storage tank 110.

When the temperature of the outside air A is high, the above-mentioned heat generation operation of the compression heat pump is performed in a state where the refrigerant heat exchanger 104 for air functions as an evaporator, but the temperature of the outside air A is low. In this case, the above-mentioned heat generation operation of the compression heat pump in a state where both the refrigerant heat exchanger for air 104 and the brine / refrigerant heat exchanger 106 or only the brine / refrigerant heat exchanger 106 functions as an evaporator. And for this heat generation operation,
The brine tank 111 is brought into a counter-compression circulating state in which brine is circulated between the brine / refrigerant heat exchanger 106, whereby a part or all of the cold exhaust heat accompanying the heat generation operation of the compression heat pump is transferred to the brine tank 111. The heat generation operation of the compression heat pump is continued in the form of temporary storage.

(Heating execution / recovery mode) This “heating execution / recovery mode” is mainly performed in the daytime, and the hot water CH stored in the heat storage tank 110 is circulated to the cold / hot water heat exchanger 101 of the indoor heat exchange unit 100. At the same time, the fan 103 of the indoor heat exchange unit 100 is operated, whereby the heat storage tank 1
The room is heated with the consumption of the stored heat in 10.

Further, if necessary, for example, when the heating load is large, the refrigerant heat exchanger 102 of the indoor heat exchange unit 100
Of the indoor heat exchange unit 100 together with the cold / hot water heat exchanger 101 to heat the ventilation air IA.

The above-mentioned heat generation operation of the compression heat pump is performed in a state where the refrigerant heat exchanger 104 for air functions as an evaporator. In the exchanger 104, the air is released to the outside air A.

On the other hand, the chemical heat pump device 112
Performs a heat-collecting operation in which the first heat-sink 113 functions as a heat absorber and the second heat-sink 114 functions as a heat generator. For the operation, the brine tank 111 performs a chemical circulation for circulating brine between the second heat generating / absorbing device 114 and thereby the second generating / heat absorbing device 1.
The storage brine L in the brine tank 111 is heated in a mode that utilizes the heat generation function of 14 (in other words, a mode in which the cold stored in the brine tank is discharged from the first heat generating / absorbing device 113 to the outside air A).

That is, by discharging the cold stored in the brine tank outside the facility in advance, the amount of temporary storage in the brine tank 111 with respect to the cold exhaust heat generated by the subsequent operation of the compression heat pump for generating hot heat can be reduced. Large secure,
Thereby, a high coefficient of performance is obtained in the subsequent operation of the compression heat pump for generating heat.

In short, in the heating operation of the second embodiment, the above-mentioned “heat storage mode for heating” is an exhaust heat storage in which the heat generation operation is performed while storing the cold exhaust heat as the cold stored in the brine L. On the other hand, the above-mentioned “heating execution / recovery mode” releases the cold energy possessed by the brine L as a heat-collecting medium into the atmosphere, and restores the brine L to a state where cold heat storage is possible. It is a recovery process.

As for the equipment configuration, the brine tank 111 constitutes a medium holding means for storing the cold exhaust heat generated in the heat generation operation as the held cold heat of the held brine L (that is, the held heat collecting medium). Further, the above-mentioned chemical heat pump device 112 is provided with recovery means for releasing the cold stored in the brine L as a heat-collecting medium into the atmosphere and restoring the brine L in the medium holding means to a state where cold storage is possible. Constitute.

[Another Embodiment] Next, another embodiment will be described.

(1) The medium for heat radiation or the medium for heat collection is not limited to brine, but may be mere water or other liquid. , Or various latent heat storage materials that change phase from a liquid phase to a gas phase are used as a radiating medium, or various kinds of phase change from a liquid phase to a solid phase with storage of cold heat, or from a gas phase to a liquid phase. May be used as a heat collection medium.

(2) As an example of an apparatus configuration in which a latent heat storage material is used as a heat dissipation medium or a heat collection medium, a number of capsules filled with the latent heat storage material are provided in the brine tanks 26 and 111 in each of the above embodiments. An embodiment in which the brine L that is accommodated and then led into and out of the brine tanks 26 and 111 is used as a heat transport medium of hot or cold for the accommodated latent heat storage material can be given.

(3) The recovery means for restoring the heat radiating medium L to a state in which the heat radiating medium L can be stored is replaced with a method in which the heat retained in the heat radiating medium L is released to the atmosphere, but instead of a separately stored discharge medium. A type in which the heat radiating medium L is cooled by cold heat may be adopted, or both types may be used in combination.

(4) The recovery means for recovering the heat-collecting medium L to a state in which the heat-collecting medium L can be stored may be of a type in which the heat- collecting medium L is heated by waste heat stored separately.
Any of the types that release the cold stored in the atmosphere into the atmosphere may be adopted, or both types may be used in combination.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a diagram showing a facility configuration of a first embodiment.

FIG. 2 is a diagram showing a schematic device arrangement according to the first embodiment;

FIG. 3 is an enlarged front view of a main part of the first embodiment.

FIG. 4 is an enlarged side view of a main part of the first embodiment.

FIG. 5 is a time chart of a cooling operation in the first embodiment.

FIG. 6 is a diagram showing an operation state of a representative operation mode in cooling operation according to the first embodiment.

FIG. 7 is a diagram showing an operation state in a representative operation mode in cooling operation according to the first embodiment.

FIG. 8 is a diagram showing an operation state of a representative operation mode in a cooling operation according to the first embodiment.

FIG. 9 is a diagram showing an operation state of a representative operation mode in the cooling operation according to the first embodiment.

FIG. 10 is a diagram showing an operation state of a representative operation mode in a cooling operation according to the first embodiment.

FIG. 11 is a time chart of a heating operation in the first embodiment.

FIG. 12 is a diagram showing an operation state of a representative operation mode in a heating operation according to the first embodiment.

FIG. 13 is a diagram showing an operation state of a representative operation mode in a heating operation according to the first embodiment.

FIG. 14 is a diagram showing an operation state of a representative operation mode in a heating operation according to the first embodiment.

FIG. 15 is a diagram showing an operation state of a representative operation mode in a heating operation according to the first embodiment.

FIG. 16 is a diagram showing a facility configuration according to a second embodiment.

[Explanation of symbols]

L Medium for heat radiation, Medium for heat collection 26,111 Medium holding means 9,14,30,112 Recovery means 2,101 Heat exchangers 12,14,104 Heat exchangers 23,24,110 Tank

──────────────────────────────────────────────────の Continuation of front page (51) Int.Cl. ⁶ identification code FI F28D 20/00 F28D 20/00 B (58) Field surveyed (Int.Cl. ⁶ , DB name) F25B 13/00 351 F24F 5 / 00 102 F25B 5/04 F25B 6/04 F25B 30/02 F28D 20/00

Claims (6)

(57) [Claims] (1) The heat exhausted heat is stored in a heat radiating medium (L).
Heat pump operation while discharging without storing
And performing cooling using the cold heat storage process in which the heat is stored.
The accompanying, air and exhaust heat蓄留stroke, the held heat of the radiating medium (L) for implementing the cold generating operation by the heat pump operation while蓄留the heat exhaust heat as held heat of the radiating medium (L) Release it inside,
Alternatively, the heat radiating medium (L) is generated by using the discharged cooling heat stored separately.
And recovering the heat-dissipating medium (L) to a state capable of storing heat. 2. The method according to claim 1, wherein a latent heat storage material is used as the heat radiation medium. 3. A heat pump facility for performing the heat pump facility operation method according to claim 1 or 2, wherein a tank (2) for storing cold generated by the heat pump operation.
4), (110) and cooling using the heat storage cold energy of the tanks (24), (110).
The heat exchangers (2), (101) to be performed, and a medium holding means (26) for storing the warm exhaust heat generated in the cold heat generation operation by the heat pump operation performed in association with the cooling as the held heat of the held radiating medium (L). ), (111)
And heat during cold storage of heat in the tanks (24) and (110).
The exhaust heat generated by the pump operation is transferred to the medium holding means (2).
6), heat exchanger that releases without storage in (111)
(12), (14), and (104) and releasing the retained heat of the heat radiating medium (L) into the atmosphere,
Alternatively, the heat radiating medium (L) is generated by using the discharged cooling heat stored separately.
Heat pump equipment provided with recovery means (9), (14), and (112) for cooling the medium and recovering the held heat radiation medium (L) in the medium holding means (26) to a state in which heat storage is possible. 4. The cold heat retained in the medium for heat extraction (L).
Heat pump operation while discharging without storing
And heat storage using the heat storage heat in this heat storage process.
In with the exhaust heat蓄留step of carrying out the heat generating operation by the heat pump operation while蓄留the cold heat as held cold before Symbol Tonetsu medium (L), wherein the exhaust heat that separately蓄留Tonetsu The heating medium (L) is heated, or the cold stored in the heating medium (L) is released into the atmosphere to restore the heating medium (L) to a state where cold storage is possible. A method of operating a heat pump facility having a recovery step. 5. The method according to claim 4, wherein a latent heat storage material is used as the heat collection medium. 6. A heat pump facility for carrying out the heat pump facility operation method according to claim 4 or 5, wherein a tank (23) for storing heat generated by the heat pump operation.
And a heat exchanger for heating using the heat stored in the tank (23)
(2) medium storage means (26) for storing the cold exhaust heat generated in the heat generation operation by the heat pump operation performed in association with the heating as the stored cold heat of the storage medium (L); and the tank (23) Heat pump operation when storing heat
The generated cold exhaust heat is stored in the medium holding means (26).
Heating medium (L) is heated by heat exchangers (12) and (14) that are released without performing and exhaust heat stored separately, or cold heat held by heating medium (L) Heat recovery equipment (30) for releasing methane into the atmosphere to recover the stored heat-collecting medium (L) in the medium holding means (26) to a state in which cold storage is possible.