JP3071659B2 - Constant temperature and humidity control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a constant temperature and humidity control system for controlling a food preservation environment to a predetermined temperature and humidity, and more particularly to a constant temperature and humidity control system having a simplified structure.

[0002]

2. Description of the Related Art There has been a great deal of interest in food preservation techniques for preserving food in a fresh state for a long period of time. There are two types of food preservation technology: cooling technology that freezes or refrigerates food, and heating technology that restores the food to its fresh state prior to storage when eating (specifically, thawing And heat insulation treatment). As a system for realizing such a food preservation technique, there is a constant temperature / humidity control system for always controlling the temperature and humidity in a food preservation environment to predetermined values.

[0003] As an example of this constant temperature and humidity control system,
The applicant has previously disclosed a high-humidity thawing refrigeration system (Japanese Patent Application No. 6-1).
No. 39090). This system generates cold or hot water using one heat pump as a heat source,
By blowing air against the cold or hot water,
Humidified cold or hot air can be created. Therefore, refrigeration treatment in a high humidity environment using wet cold air,
In addition, it is possible to perform a thawing process under a high humidity environment using moist warm air. As a result, there is no need to provide a cooling unit, a humidifying unit, and a thawing unit independently, and the system can be simplified.

[0004]

However, in the above-mentioned high-humidity thawing refrigeration system, since the cold air cooled by the cold water is used, the temperature of the cold air is reduced only to a temperature suitable for refrigeration of the food. It was not possible to reduce the temperature to a low enough to freeze. In addition, since the warm air in the above system has a high humidity, when the temperature of the warm air is raised to keep the food warm, a problem that extra water droplets adhere to the food surface occurs. . That is, the high-humidity thawing and refrigeration system does not perform the freezing process or the heat-retaining process of food, and these processes are generally performed by a system different from the above-described system.

[0005] In recent years, the diversification of foods has tended to progress in accordance with consumer needs. Therefore, a highly versatile constant temperature and humidity control system capable of freezing, refrigeration, thawing, and keeping heat is required to be able to handle any food. In order to realize such a highly versatile constant temperature and humidity control system, conventionally, as described above, the refrigeration system and the thawing system must be configured separately by combining a plurality of systems. . Therefore, the whole system has to be enlarged and complicated.

[0006] The present invention has been proposed in view of such circumstances, and its main purpose is to simplify the configuration by freezing, refrigeration, thawing, and keeping the temperature of food using a single heat pump. It is an object of the present invention to provide a highly versatile constant temperature and humidity control system capable of contributing to the development of a system. Another object of the present invention is to provide a constant-temperature and constant-humidity control system having excellent economic efficiency by using an ice heat storage tank as a cold water tank.

[0007]

In order to achieve the above object, the invention according to claim 1 includes a storage room for storing food, and the storage room is controlled at a predetermined temperature and humidity.
The low-temperature operation mode, the cold water cooling operation mode, and the hot water
Four operations of "heating operation mode" and "high temperature operation mode"
In the constant temperature / humidity control system having the mode, a cold water tank storing cold water supplied to the storage room, a hot water tank storing hot water supplied to the storage room, the storage room, the cold water tank or the A heat pump for storing a low-temperature or high-temperature refrigerant to be supplied to the hot water tank; and a cooling / heating coil to which the low-temperature or high-temperature refrigerant is supplied from the heat pump, and Water jetting means for jetting cold water or hot water supplied from the hot water tank, a filling to which the cold water or hot water jetted from the water jetting means is sprayed, and the cold water or hot water or the low temperature jetted to the filling Or a blower that blows air against a cooling and heating coil to which a high-temperature refrigerant is supplied, and sends cool air and hot air to the storage chamber, A collecting device capable of collecting the cold water or hot water sprayed on the filling is provided, and between the heat pump and the storage chamber, a low-temperature or high-temperature refrigerant is supplied from the heat pump to the cooling / heating coil. 1 refrigerant sending means, and first refrigerant collecting means for collecting the refrigerant supplied to the cooling and heating coil to the heat pump is provided, and between the heat pump and the cold water tank, A second refrigerant sending means for supplying a low-temperature refrigerant for cooling the cold water from the heat pump to the cold water tank, and a second refrigerant collecting means for collecting the refrigerant supplied to the cold water tank to the heat pump, Third refrigerant delivery means for supplying a high-temperature refrigerant for warming hot water in the hot water tank from the heat pump to the hot water tank between the heat pump and the hot water tank; A third refrigerant recovery means for recovering the refrigerant supplied to the hot water tank to the heat pump; and a third means for discharging the cold water in the cold water tank between the cold water tank and the storage chamber. Cold water sending means for sending out the cold water to the cold water tank from the collecting device is provided, and between the hot water tank and the water jetting means, the hot water in the hot water tank is provided between the hot water tank and the water jetting means. A hot water sending means for sending out to the water jetting means, and a hot water collecting means for collecting the hot water from the collecting device to the hot water tank are provided;
In the "low temperature operation mode", the first refrigerant delivery means
And the first refrigerant recovery means, the heat pump
The low-temperature refrigerant of the inner is circulated between the storage chamber, wherein
In the “cold water cooling operation mode”, the second refrigerant delivery means
And the second refrigerant recovery means, the heat pump
Between the heat pump and the cold water tank.
Circulates, the chilled water delivery means and the chilled water recovery
Means for circulating the cold water in the cold water tank with the cold storage room.
In the “hot water heating operation mode”, the third
By the refrigerant sending means and the third refrigerant collecting means,
Circulates the high-temperature refrigerant in the heat pump between the hot water tank
And the hot water sending means and the hot water collecting means
The hot water in the hot water tank is circulated between the hot water tank and the cold storage room.
In the “high temperature operation mode”, the first refrigerant delivery
Means and the first refrigerant recovery means,
The high-temperature refrigerant in the pump is circulated to and from the storage room.
And

The invention according to claim 2 is characterized in that the cold water tank is an ice heat storage tank having a cooling pipe on the surface of which ice can be attached and generated.

[0009]

In the constant temperature / humidity control system of the present invention having the above-mentioned structure, a low-temperature or high-temperature refrigerant contained in one heat pump is used to cool and heat a cooling / heating coil in a storage room in accordance with the control state of temperature and humidity for food. By supplying “cold water mode”, “cold water cooling operation mode”, “hot water heating operation mode” and “high temperature operation mode” to supply to the cold water tank or the hot water tank, the food can be frozen, humidified and refrigerated, humidified and thawed, and kept warm. Can be performed. Hereinafter, the operation of the present invention will be described in accordance with the control state of temperature and humidity for food.

[Frozen] When freezing food, the heat pump takes a "low-temperature operation mode" in which the first refrigerant delivery means and the first refrigerant recovery means supply a low-temperature refrigerant to the cooling and heating coil in the storage room. By blowing air from a blower to the cooling and heating coil, cool air is sent into the storage room. And
This cold air lowers the temperature in the storage room to a predetermined temperature, and by maintaining that temperature, the food in the storage room can be frozen.

[Refrigeration] When performing humidification and refrigeration of food, the heat pump takes a "cooled water cooling operation mode" in which a second refrigerant sending means and a second refrigerant recovery means supply a low-temperature refrigerant to a chilled water tank. Cool the cold water in the tank. The cold water is sent from the cold water tank to the water jetting means in the storage room by the cold water feeding means, and is blown from the water jetting means to the filling. Then, the air blown from the blower to the cold water blown to the filling is sent into the storage room. At this time,
The air blown from the blower to the filling has a large area in the filling and directly touches the cold water over a long period of time, so that the air becomes moist, cool air containing much moisture. Therefore, the humidity in the storage room is increased and the room temperature is lowered by the wet cold air, and the storage room is set to a low-temperature and high-humidity environment. By maintaining this low-temperature and high-humidity environment, food in the storage room can be humidified and refrigerated. The cold water blown to the filling is collected in a cold water tank by a cold water collecting means. In particular, in the invention as set forth in claim 2, since the cold water tank is an ice heat storage tank having a cooling pipe capable of adhering and generating ice on its surface, cold water can be produced economically, which is advantageous when performing refrigeration. is there.

[Thawing] When humidifying and thawing foods, the heat pump takes a “hot water heating operation mode” in which the third refrigerant sending means and the third refrigerant collecting means supply a high-temperature refrigerant to the hot water tank. Warm the hot water in the hot water tank. The hot water is sent from the hot water tank to the water jetting means in the storage room by the hot water sending means,
The water is jetted from the water jetting means to the filling. Then, the air blown from the blower to the hot water blown to the filling is sent into the storage room. At this time,
The air blown from the blower to the filling has a large area in the filling and directly touches the hot water over a long period of time. Therefore, the humidity inside the storage room is raised by the moist warm air and the room temperature is raised, and the storage room is set to a high-temperature and high-humidity environment. By maintaining this high-temperature, high-humidity environment, the food in the storage room can be humidified and thawed. The hot water blown to the filling is collected in a hot water tank by a hot water collecting means.

[Heat preservation] When preserving the food, the heat pump takes a "high temperature operation mode" in which the first refrigerant sending means and the first refrigerant recovery means supply a high temperature refrigerant to the cooling and heating coil in the storage room. Hot air is blown into the storage chamber by blowing air from a blower to the cooling and heating coil. And
The warm air raises the temperature in the storage room to a predetermined temperature, and by maintaining that temperature, the food in the storage room can be kept warm. In addition, the air blown from the blower to the cooling and heating coil and sent into the storage room is warm air due to the `` high temperature operation mode '' of the heat pump, but does not contain a large amount of moisture and is dry. In addition, dehumidification in the storage room can be performed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to FIGS. 1 to 6 are system diagrams of the present embodiment. This embodiment includes the first and second aspects of the present invention.

(1) Configuration of the Embodiment The constant temperature and humidity control system according to the present embodiment includes a storage room 1 for storing food, a cold water tank 2 for storing cold water, and a hot water tank 3 for storing hot water. , A heat pump 4.

[Storage room 1] The storage room 1 has a wall surface formed of panels made of a heat insulating material. A food storage space is formed in the interior space of the storage room 1, and a shower unit 5 is provided near the ceiling as a water jetting means for jetting hot and cold water. A filling 6 is provided below the shower section 5. The filling unit 6 is configured such that cold water and hot water are blown from the shower unit 5. A blower 7 is provided adjacent to the filling 6. The blower 7 blows air into cold water and hot water in the filling 6 blown by the shower unit 5. Further, a cooling and heating coil 8 is provided between the filling 6 and the blower 7. A brine supply port 8a and a brine recovery port 8b are provided at an end of the cooling and heating coil 8, a supply brine pipe 9 is provided at the brine supply port 8a, and a recovery brine pipe 10 is provided at the brine recovery port 8b.
Are connected respectively. The supply brine pipe 9 is connected to the heat pump 4 via a solenoid valve 11, and the recovery brine pipe 10 is connected to a heat pump 4 via a brine pump 12.

A supply pipe 13 is connected to the shower section 5 for supplying water thereto. Supply piping 13
Is connected to the cold water tank 2 and the hot water tank 3 via check valves 14a, 14b and pumps 15a, 15b. On the other hand, a collecting pipe 16 for collecting hot water and cold water spouted from the shower section 5 is connected to a lower portion of the filling 6, and the collecting pipe 16 is connected to the cold water tank 2 and the hot water tank 2 via a three-way switching valve 17. It is connected to the water tank 3.

[Cold water tank 2] The cold water tank 2 is an ice heat storage tank, and has cold water therein and an ice-making coil 18 on the surface of which ice can be generated. The ice making coil 18 is arranged in a meandering manner, and a brine supply port 18a and a brine recovery port 18b are provided at its ends. A supply brine pipe 19 is connected to the brine supply port 18a, and a recovery brine pipe 20 is connected to the brine collection port 18b. Further, the supply brine pipe 19 includes a three-way switching valve 21 and a solenoid valve 2.
2 is connected to the heat pump 4. The recovery brine pipe 20 is connected to the heat pump 4 via the brine pump 12. An expansion tank 27 is connected to the recovery brine pipe 20.

[Hot water tank 3] A heat exchanger 24 is connected to the hot water tank 3 via a hot water pump 23. The heat exchanger 24 heats the hot water through the inside thereof and heats the hot water from the discharge port 24c into the hot water tank 3.
It is configured to supply to. The heat exchanger 24 has a brine supply port 24a and a brine recovery port 24b.
Is provided. The supply brine pipe 25 is connected to the brine supply port 24a, and the recovery brine pipe 26 is connected to the brine recovery port 24b.
The supply brine pipe 25 is connected to the heat pump 4 via the three-way switching valve 21 and the solenoid valve 22, and the recovery brine pipe 26 is connected to the heat pump 4 via the brine pump 12.

[Heat Pump 4] The heat pump 4 accommodates brine therein, and heats or cools the brine and transfers the heated or cooled brine to the storage room 1, the cold water tank 2, or the hot water tank 3 side. It is configured to supply. The heat pump 4 can be switched to the following four operation modes depending on whether the brine is cooled or heated, and where the brine is supplied.

1) Low-temperature operation mode: The cooled brine is supplied to the cooling and heating coil 8 in the storage room 1. 2) Cold water cooling operation mode: ice making coil 18 in cold water tank 2
Supply cooled brine to. 3) Hot water heating operation mode: The heated brine is supplied to the heat exchanger 24 connected to the hot water tank 3. 4) High temperature operation mode: The heated brine is supplied to the cooling and heating coil 8 in the storage room 1. This is a four operation mode.

(2) Operation of the Embodiment In the constant temperature and humidity control system of the present embodiment having the above configuration, it is possible to perform freezing, humidification and refrigeration, humidification and thawing, and heat retention and dehumidification of food. Regarding these actions,
This will be specifically described with reference to FIG. In each figure,
The thick line indicates the flow of brine or cold or hot water.

[1. Freezing] See FIG. 2 When the heat pump 4 is in the low-temperature operation mode, the heat pump 4 cools the brine to a temperature lower than 0 ° C., and the solenoid valve 11 operates to flow the brine to the supply brine pipe 9. In this state, the heat pump 4 supplies the brine to the heating / cooling coil 8 via the supply brine pipe 9. Therefore, the heating / cooling coil 8 is cooled, and the air blown out from the blower 7 hits the cooling coil 8 to become cool air (W in FIG. 2). This cold air W reduces the temperature in the storage room 1 by -20 to 20.
By lowering the temperature to 0 ° C. and maintaining such a low temperature, the food in the storage room 1 can be frozen. The brine that has passed through the heating / cooling coil 8 is removed from the brine collection port 8b.
Through the recovery brine pipe 10 and returns into the heat pump 4 by the action of the brine pump 12.

[2. Humidification and Refrigeration] When performing humidification and refrigeration of food, first, the heat pump 4 performs a chilled water cooling operation to cool the chilled water in the chilled water tank 2, and humidifies and refrigerates the storage room 1 using the chilled water.

[2-1: Cooling of cold water] ... See FIG. 3 When the heat pump 4 is in the cold water cooling operation mode, the heat pump 4 cools the brine to a temperature lower than 0 ° C.
The solenoid valve 22 and the three-way switching valve 21 operate to flow the brine to the supply brine pipe 19. In this state, the heat pump 4 supplies the brine to the brine supply port 18 a of the ice making coil 18 via the supply brine pipe 19. In the ice making coil 18, the brine flows while meandering, and the heat of the brine and the heat of the cold water on the outer periphery of the ice making coil 18 exchange heat. As a result, the cold water is frozen, and ice can be generated on the outer periphery of the ice making coil 18. The ice is melted to cool the cold water in the cold water tank 2. The brine that has passed through the ice making coil 18 flows through the brine recovery port 18 b to the recovery brine pipe 20, and returns to the heat pump 4 by the operation of the brine pump 12.

[2-2: Humidification and Refrigeration] See FIG. 4 When the chilled water in the chilled water tank 2 is cooled by the ice of the ice making coil 18, the check valve 14 a uses the shower unit 5 to cool the chilled water in the chilled water tank 2.
Is working to supply to. Therefore, the pump 15
When a operates, the supply pipe 13 supplies the cold water in the cold water tank 2 to the shower unit 5. Then, the shower unit 5 sprays cold water (C in FIG. 4) onto the filling 6. When the blower 7 blows air to the cold water in the filling 6, the air from the blower 7 touches the cold water in a wide area for a long time while passing through the filling 6. Therefore, the air from the blower 7 becomes a cold wind containing much moisture (X in FIG. 4). By sending the moist cold air into the storage room 1, it is possible to raise the humidity in the storage room 1 and at the same time lower the room temperature, and to make the storage room 1 a low-temperature and high-humidity environment.
By maintaining this low-temperature and high-humidity environment, the food in the storage room 1 can be humidified and refrigerated.

The chilled water that has not been converted into steam accumulates in the lower part of the filling 6. At this time, the three-way switching valve 17 operates to flow the chilled water to the chilled water tank 2. Therefore, the collection pipe 16 collects the cold water from the filling 6 into the cold water tank 2. Further, it has been found that the cooling temperature in the storage room 1 is usually about 0.5 ° C. higher than the temperature of the cold water supplied from the cold water tank 2. So, adjust the cold water temperature,
The cooling temperature in the storage room 1 can be adjusted by appropriately changing the temperature in the storage room 1.

[3. Humidification and Defrosting] When performing humidification and defrosting of food, first, the heat pump 4 performs a hot water heating operation to heat the hot water in the hot water tank 3, and humidifies and defrosts the storage room 1 using the hot water.

[3-1: Heating of Hot Water]-See FIG. 5 When the heat pump 4 is in the hot water heating operation mode, the heat pump 4 heats the brine, and the solenoid valve 22 and the three-way switching valve 21 supply the brine to supply the brine. It operates to flow to 25. In this state, the heat pump 4 supplies the brine to the brine supply port 24a of the heat exchanger 24 via the supply brine pipe 25. In the heat exchanger 24, the heat of the brine and the heat of the hot water in the heat exchanger 24 exchange heat. Thereby, the hot water in the heat exchanger 24 can be heated, and this hot water (H in FIG. 5) is supplied into the hot water tank 3. The brine that has passed through the heat exchanger 24 flows through the brine recovery port 24 b to the recovery brine pipe 26, and is operated by the brine pump 12.
Return inside.

[3-2: Humidification and Thawing] —See FIG. 6 When the hot water in the hot water tank 3 is heated by the action of the heat exchanger 24, the check valve 14 b supplies the cold water in the cold water tank 5 to the shower unit 5. Is working like that. Therefore, the pump 15b
Is operated, the supply pipe 13 supplies the hot water in the hot water tank 2 to the shower section 5. Then, the shower section 5 sprays hot water (H in FIG. 6) onto the filling 6. When the blower 7 blows air against the hot water in the filling 6, the air from the blower 7 touches the hot water in a wide area for a long time while passing through the filling 6. Therefore, the air from the blower 7 is a warm wind containing much moisture (Y in FIG. 6). By sending the moist warm air into the storage room, the humidity and temperature in the storage room 1 can be increased, and the storage room can be in a high temperature and high humidity environment. The food in the storage room 1 can be humidified and thawed by maintaining this high temperature and high humidity environment.

The hot water that has not been converted into steam accumulates in the lower portion of the filling 6. At this time, the three-way switching valve 17 operates to flow the hot water to the hot water tank 3. Therefore, the collection pipe 16 collects the hot water from the filling 6 into the hot water tank 3. The humidity in the entire storage room 1 is controlled by the supply pipe 13.
Depending on conditions such as the amount and temperature of cold or hot water supplied to the air, or the amount and temperature of air blown from the blower 7.
It can be humidified to a level approaching 00%. Furthermore, the thawing temperature in the storage room 1 can be adjusted by adjusting the temperature of the hot water and appropriately changing the temperature in the storage room 1.

[4. Insulation] See FIG. 2 When the heat pump 4 is in the high-temperature operation mode, the flow of brine is the same as in the low-temperature operation mode, and the difference is that the brine is warmed instead of being cooled. That is, the heat pump 4 warms the brine, and the solenoid valve 11 operates to flow the brine to the supply brine pipe 9. In this state, the heat pump 4 supplies the brine to the heating / cooling coil 8 via the supply brine pipe 9. Therefore, the heating / cooling coil 8 is heated, and the air blown from the blower 7 hits the heating coil 8 to become hot air (Z in FIG. 2). This warm air raises the temperature in the storage room 1 to 40 to 50 ° C., and by maintaining such a high temperature, the food in the storage room 1 can be kept warm. The hot air generated by the high-temperature operation of the heat pump 4 does not contain moisture and is dry, so that the dehumidification in the storage room 1 can be performed. The brine that has passed through the heating / cooling coil 8 flows into the recovery brine pipe 10 through the brine recovery port 8b, and returns to the heat pump 4 by the operation of the brine pump 12.

(3) Effects of the embodiment As described above, according to this embodiment, the brine cooled or heated by one heat pump 4 is circulated to freeze, humidify, cool, defrost and heat the food. Dehumidification can be performed. Therefore, the food can be first frozen, stored in a certain institution, humidified and thawed, and immediately humidified and refrigerated. Furthermore, it is possible to keep the heated food even in the same system. Therefore, it is possible to realize a highly versatile constant temperature and humidity control system that can perform freezing, refrigeration, thawing, and keeping the temperature of food, and contribute to simplification of the configuration.

Further, since a plurality of operations can be performed on the same system, the operations can be simplified. Furthermore, since thawing and refrigeration are performed in a high-humidity environment, it is effective to maintain the freshness of food. In addition, the use of the heat pump 4 and the chilled water tank 2 during a time when energy costs such as late-night power is low or when excess energy is generated can reduce running costs, which is very economical. Further, in this embodiment, since the cold water or the hot water receives the air from the blower 7 while passing through the filling 6, the cold water or the hot water can be in contact with the air over a wide area for a long time. Therefore, there is an advantage that acquisition of steam and cooling and heating of air can be performed with high efficiency.

(4) Other Embodiments The constant temperature / humidity control system of the present invention is not limited to the above-described embodiment, but the shapes and dimensions of the respective components, and the respective mounting positions and mounting methods. Can be changed as appropriate. For example, in a hot water tank, a coil to which heated brine is supplied from a heat pump is provided, and an embodiment in which hot water is heated by this coil or a control unit that controls switching of the operation mode of the heat pump is connected to the heat pump, And an embodiment for improving the efficiency of the thawing operation.

[0036]

As described above, according to the present invention, food can be frozen, refrigerated, thawed, and kept warm by using only one heat pump, and high versatility can be achieved which can contribute to simplification of the structure. Temperature and humidity control system.

[Brief description of the drawings]

FIG. 1 is a system diagram showing one embodiment of the present invention.

FIG. 2 is a system diagram illustrating the present embodiment (a refrigeration mode is indicated by a thick line).

FIG. 3 is a system diagram showing the present embodiment (a cold water cooling mode is indicated by a thick line).

FIG. 4 is a system diagram showing the present embodiment (a thick line indicates a humidification / refrigeration mode).

FIG. 5 is a system diagram showing the present embodiment (a hot water heating mode is indicated by a thick line).

FIG. 6 is a system diagram showing the present embodiment (a thick line indicates a humidifying and thawing mode).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Preservation room 2 ... Cold water tank 3 ... Hot water tank 4 ... Heat pump 5 ... Shower part 6 ... Filling 7 ... Blower 8 ... Cooling and heating coil 9, 19, 25 ... Supply brine piping 10, 20, 26 ... Recovery brine piping 11, 22 ... solenoid valve 12 ... brine pump 13 ... supply pipe 14a, 14b ... check valve 15a, 15b ... pump 16 ... collection pipe 17, 21 ... three-way switching valve 18 ... ice making coil 23 ... hot water pump 24 ... heat Exchanger 27 ... Expansion tank C ... Cold water H ... Hot water W ... Cold air X ... Wet cold air Y ... Wet hot air Z ... Hot air

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 11/02 F25D 13/00 101 F25D 17/02-17/06 F25D 23/00 302

Claims (2)

(57) [Claims] According to claim 1, further comprising: a storage chamber for storing the food, the storage
In order to control the room to a predetermined temperature and humidity,
Mode, cold water cooling operation mode, and hot water heating operation mode.
And four high-temperature operation modes
In the constant temperature and humidity control system, a cold water tank storing cold water supplied to the storage room, a hot water tank storing hot water supplied to the storage room, and the storage room, the cold water tank or the hot water tank. A heat pump for storing the supplied low-temperature or high-temperature refrigerant, and a cooling / heating coil to which the low-temperature or high-temperature refrigerant is supplied from the heat pump, and cold water or A water jetting means for jetting hot water supplied from the hot water tank, a filling to which the cold water or hot water jetted from the water jetting means is blown, and the cold water or hot water or the low temperature or high temperature blown to the filling. A blower for blowing cold air and hot air into the storage chamber by blowing air to a cooling and heating coil to which a refrigerant is supplied; A collecting device capable of collecting the cold water or hot water blown to the heat pump; and a first supply of a low-temperature or high-temperature refrigerant from the heat pump to the cooling / heating coil between the heat pump and the storage chamber. And a first pump for recovering the refrigerant supplied to the cooling and heating coil to the heat pump.
A second refrigerant sending means for supplying a low-temperature refrigerant for cooling the cold water in the cold water tank from the heat pump to the cold water tank, between the heat pump and the cold water tank; A second method of recovering the refrigerant supplied to the cold water tank to the heat pump;
Refrigerant recovery means is provided, between the heat pump and the hot water tank, a third refrigerant sending means for supplying a high-temperature refrigerant for warming hot water in the hot water tank from the heat pump to the hot water tank, A third refrigerant recovery means for recovering the refrigerant supplied to the hot water tank to the heat pump is provided, and between the cold water tank and the storage chamber, the cold water in the cold water tank is sent to the water jetting means. Cold water sending means, and cold water collecting means for collecting the cold water from the collecting device to the cold water tank are provided, and between the hot water tank and the water jetting means, the hot water in the hot water tank is ejected by the water jetting means. Means for sending out hot water to the means, and hot water collecting means for collecting the hot water from the collecting device to the hot water tank , wherein the first refrigerant sending means is provided in the "low temperature operation mode".
And the first refrigerant recovery means, the heat pump
Circulates a low-temperature refrigerant inside the storage chamber and in the “cold water cooling operation mode”, the second refrigerant delivery
Means and the second refrigerant recovery means,
The low-temperature refrigerant in the pump between the heat pump and the cold water tank.
Circulating between the cold water delivery means and the cold water
Cold water in the cold water tank is collected between the cold storage chamber by the collection means.
In the “hot water heating operation mode”, the third refrigerant delivery
Means and the third refrigerant recovery means,
When the high-temperature refrigerant in the pump is circulated between the hot water tank and
Both, by the hot water sending means and the hot water collecting means
The hot water in the temperature water bath is circulated between the cold chamber, the in "hot operation mode", the first refrigerant delivery means
And the first refrigerant recovery means, the heat pump
A constant temperature and humidity control system , wherein a high temperature refrigerant inside the storage room is circulated between the storage room and the storage room . 2. The constant temperature / humidity control system according to claim 1, wherein the cold water tank is an ice heat storage tank having a cooling pipe on the surface of which ice can be generated.