WO2016113937A1 - Système de climatisation à stockage thermique - Google Patents

Système de climatisation à stockage thermique Download PDF

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Publication number
WO2016113937A1
WO2016113937A1 PCT/JP2015/072113 JP2015072113W WO2016113937A1 WO 2016113937 A1 WO2016113937 A1 WO 2016113937A1 JP 2015072113 W JP2015072113 W JP 2015072113W WO 2016113937 A1 WO2016113937 A1 WO 2016113937A1
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WO
WIPO (PCT)
Prior art keywords
heat storage
heat
cold
unit
indoor
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PCT/JP2015/072113
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English (en)
Japanese (ja)
Inventor
齊藤　信
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三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2016569218A priority Critical patent/JP6250195B2/ja
Publication of WO2016113937A1 publication Critical patent/WO2016113937A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices

Definitions

  • the present invention relates to a heat storage air-conditioning system having a heat storage unit, and more particularly to a heat storage air-conditioning system provided with an indoor unit that uses hot or cold energy stored in the heat storage unit.
  • an air-conditioning operation in which an operation for storing hot or cold air for air conditioning in the form of hot water, cold water, or ice in the heat storage tank is performed at night, and an air-conditioning operation that handles the air-conditioning load is performed during the day ing.
  • an air-conditioning operation that handles the air-conditioning load is performed during the day ing.
  • the daytime air conditioning operation for example, not only air conditioning capability is exhibited by operating a heat source unit composed of a refrigeration cycle, but also air conditioning that uses cold and hot energy stored at night is performed. Therefore, the use of heat storage leads to a reduction in the capacity of the heat source unit or a reduction in the amount of power used during the peak power demand period.
  • the operation is performed to circulate the heat medium stored in the heat storage tank to the load side terminal such as the indoor unit that processes the air conditioning load.
  • the load side terminal such as the indoor unit that processes the air conditioning load.
  • the amount of heat stored cannot be sufficiently utilized.
  • a heat storage air-conditioning system configured so that the heat medium returning from the load-side terminal is not mixed with the heat medium stored before the load processing (see Patent Document 1) is known.
  • the maximum temperature difference that can be used for storing heat in the heat exchanger is the temperature difference of the heat medium used at the load side terminal.
  • the room temperature in the heating period is about 20 ° C.
  • the maximum use temperature difference when heating with 50 ° C. hot water is 30 ° C.
  • the heat storage temperature is 50 ° C.
  • the return from the load side The water temperature is designed at about 45 ° C. That is, the conventional heat storage air-conditioning system adopts a hot water circulation system in which when the heating operation using heat storage is performed in a state where hot water of 50 ° C is accumulated in the heat storage tank, the hot water of 45 ° C returns to the heat storage tank.
  • the temperature of the whole warm water in the heat storage tank becomes 45 ° C. when the warm water in the heat storage tank is completed. That is, the temperature of the whole warm water in the heat storage tank is decreased by a certain temperature each time the warm water in the heat storage tank is completed.
  • the temperature of the hot water in the heat storage tank decreases with the passage of time, and the heating capacity decreases with this, so the cold energy or the heat stored in the heat storage tank is effective. There is a problem that it cannot be used.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a heat storage air-conditioning system that effectively uses stored heat or cold.
  • a heat storage air conditioning system circulates a heat source unit that generates cold / hot water, a heat storage unit that includes a heat storage tank that stores the cold / warm water generated by the heat source unit, and circulates the cold / hot water generated by the heat source unit.
  • a heat storage indoor heat exchanger that exchanges heat with the outside air, and a drainage unit that drains the cold / hot water after heat exchange stored in the heat storage indoor heat exchanger.
  • the present invention stores cold / hot water stored in a heat storage tank in a heat storage indoor heat exchanger, and the drainage unit drains the stored cold / warm water in the heat storage indoor heat exchanger. Since the cold / hot water after heat exchange can be drained without returning to the heat storage tank, the stored cold / hot heat can be used effectively without increasing the capacity of the heat storage tank.
  • FIG. 1 It is a block diagram which shows the valve operation
  • FIG. 1 is a configuration diagram showing an example of a heat storage air conditioning system according to an embodiment of the present invention.
  • the heat storage air conditioning system 61 includes a heat source unit 1 installed outdoors, and a heat storage tank that stores cold water or hot water (hereinafter also referred to as “cold hot water”) generated by the heat source unit 1.
  • Recirculation indoor unit 3 for performing air conditioning by circulating cold / hot water absorbed or radiated by heat exchange between the heat storage unit 2 and the heat source unit 1, and heat storage for performing air conditioning based on the cold / hot water stored in the heat storage tank 15
  • the circulation indoor unit 3 and the heat storage utilization indoor unit 4 are indoor units installed in the air conditioning target room 100.
  • the heat source unit 1 and the heat storage unit 2 are connected by a water pipe 5. Further, the circulation indoor unit 3 is connected to the heat storage unit 2 by an air conditioning circuit 7, and the heat storage use indoor unit 4 is connected to the heat storage unit 2 by a heat storage use circuit 8. Further, the heat storage air conditioning system 61 includes a control unit 41 that controls the heat source unit 1, the heat storage unit 2, the circulation indoor unit 3, and the heat storage utilization indoor unit 4.
  • the heat source unit 1 includes a compressor 9, a four-way switching valve 10, a load-side heat exchanger 11 that performs heat exchange with cold / hot water circulating on the load side, an expansion valve 12, and an outdoor heat exchanger 13 that are connected in order. A circuit is formed.
  • the outdoor heat exchanger 13 is provided with an outdoor blower 14 for adjusting the amount of heat exchange with outdoor air. That is, the heat source unit 1 is a heat pump cold / hot water generator using outdoor air as a heat source, and the four-way switching valve 10 is controlled by the control unit 41 to generate cold water or hot water.
  • the controller 41 switches the flow path of the cold / hot water by selecting the flow path of the cold / hot water and controlling the four-way switching valve 10 based on an operation signal from the outside.
  • the heat storage unit 2 includes a heat storage tank 15 that stores the cold / hot water generated by the heat source unit, a water pump 16 that promotes circulation of the cold / hot water, a flow path switching valve 17 that switches a flow path of the cold / hot water, a heat storage tank 15 and a heat storage It is comprised by the on-off valve 18 provided between the utilization indoor units 4.
  • FIG. In the circulation path from the heat storage unit 2, a heat storage circuit 6 that circulates through the load-side heat exchanger 11 and the heat storage tank 15, and an air conditioning circuit 7 that circulates between the load-side heat exchanger 11 and the circulation indoor unit 3. Is provided.
  • the flow path switching valve 17 is controlled by the control unit 41 so that the flow path of the cold / hot water is switched.
  • the control unit 41 selects the flow path of the cold / hot water based on the operation signal from the outside, controls the flow path switching valve 17, and switches the flow path of the cold / hot water. Since the city water supply pipe
  • the heat storage air conditioning system 61 is provided with a heat storage utilization circuit 8 that connects the heat storage tank 15 to the heat storage utilization indoor unit 4 via the on-off valve 18.
  • the controller 41 opens the on-off valve 18 made of, for example, an electromagnetic valve, so that cold / hot water in the heat storage tank 15 is supplied to the heat storage utilization indoor unit 4.
  • the indoor unit 3 for circulation has an indoor heat exchanger 20 and an indoor fan 21 and operates when the heat source unit 1 starts operation.
  • the heat storage utilization indoor unit 4 includes a heat storage indoor heat exchanger 22, a heat storage indoor blower 23, and a drainage section 24 that drains cold / hot water after heat exchange stored in the heat storage indoor heat exchanger 22. .
  • the drainage part 24 has the drainage on-off valve 24a which consists of electromagnetic valves, for example, and the drainage pipe 24b. In this Embodiment, the drainage part 24 is provided in the lower part of the heat storage indoor heat exchanger 22 as shown in FIG.
  • the heat storage air conditioning system 61 there is only one water pipe connecting the heat storage use indoor unit 4 and the heat storage tank 15. That is, in the heat storage utilization indoor unit 4, the return pipe of the cold / hot water supplied for air conditioning is not connected, and one end of the heat storage indoor heat exchanger 22 is connected to the drain pipe 24b via the drain opening / closing valve 24a. Has been. An air vent valve 25 is installed above the heat storage indoor heat exchanger 22.
  • FIG. 2 is a schematic diagram showing the heat storage utilization indoor unit 4 provided in the heat storage air conditioning system 61.
  • the heat storage use indoor unit 4 is provided with a suction port 26 for sucking outside air and a blower outlet 27 for blowing the inside air provided at the upper portion, and a housing for storing the heat exchanger indoor heat exchanger 22. 28, a heat storage indoor heat exchanger 22, an air vent valve 25, a drainage part 24, and a heat storage indoor blower 23 for blowing outside the wind passing through the air passage from the suction port 26 to the blowout port 27.
  • It has the blower outlet 27 which blows off the wind heat-exchanged with the cold / hot water stored in the inside of the thermal storage indoor heat exchanger 22 indoors.
  • the heat storage indoor heat exchanger 22 is composed of, for example, a plate fin tube heat exchanger, and in the example shown in FIG. 2, a water pipe in which a plurality of pipes extending in the depth direction are connected from the inlet 26 toward the outlet 27. 22a and a plurality of aluminum fins (fins) 22b.
  • the water pipe 22a passes through the plurality of aluminum fins 22b. More specifically, the water pipe 22a is regularly formed on a plane in which a plurality of pipes extending in the depth direction that is the x direction are formed by the thickness direction that is the y direction and the height direction that is the z direction. They are connected and arranged in a stepped manner from the inlet 26 toward the outlet 27.
  • the air path of the heat storage indoor unit 4 is formed to be long in the direction parallel to the air flow of the heat storage indoor heat exchanger 22. That is, the heat storage indoor heat exchanger 22 is formed with an air passage that passes between the water pipes 22a in the height direction, so that air passing through the heat storage use indoor unit 4 comes into contact with the water pipe 22a more. It is configured. For this reason, in the heat storage indoor heat exchanger 22, the part that actually exchanges heat gradually moves upward, coupled with the property that cold water accumulates downward.
  • FIG. 3 is a block diagram showing a functional configuration of the control unit 41.
  • the control unit 41 determines whether or not a preset reference amount of cold / hot water is stored in the heat storage indoor heat exchanger 22, and a heat storage tank according to a heat storage use request from the outside. 15 and the valve control unit 41b that opens the on-off valve 18 provided between the heat storage indoor heat exchanger 22 and the storage amount determination unit 41a when it is determined that the above-mentioned reference amount of cold / warm water has been stored.
  • An air blow control unit 41c that starts driving the indoor blower 23.
  • the heat storage air conditioning system 61 includes a water amount detection unit 51 that detects the amount of cold / hot water stored in the heat storage indoor heat exchanger 22.
  • the storage amount determination unit 41a determines that the reference amount of cold / warm water has been stored when the detection value by the water amount detection unit 51 reaches the reference amount, and notifies the valve control unit 41b of the determination result. .
  • the valve control unit 41b closes the on-off valve 18 when the determination result that the reference amount of cold / hot water is stored is notified from the storage amount determination unit 41a.
  • the water amount detection unit 51 may detect the amount of cold / warm water stored in the heat storage chamber heat exchanger 22 by detecting the internal pressure of the heat storage chamber heat exchanger 22. That is, the storage amount determination unit 41a may determine whether or not a reference amount of cold / warm water has been stored based on the internal pressure of the heat storage indoor heat exchanger 22 detected by the water amount detection unit 51. However, the storage amount determination unit 41a may be configured to determine that the reference amount of cold / warm water is stored when the air vent valve 25 is closed, and the water amount detection unit 51 may not be provided.
  • the control unit 41 operates the drainage unit 24 and is stored in the heat storage indoor heat exchanger 22.
  • a drainage control unit 41d that drains the hot and cold water.
  • the heat storage air conditioning system 61 includes a temperature detection unit 52 that detects the temperature of the entire cold / hot water stored in the heat storage indoor heat exchanger 22.
  • the drainage control unit 41d is configured to open the drainage opening / closing valve 24a of the drainage unit 24 when the temperature detected by the temperature detection unit 52 reaches a threshold value. Thereby, the cold / hot water stored in the heat storage indoor heat exchanger 22 is drained from the drain pipe 24b.
  • the control unit 41 includes a heat storage operation mode (hot water heat storage operation mode or cold water heat storage operation mode) in which hot water or cold water is stored in the heat storage tank 15, an air conditioning operation mode in which the circulation indoor unit 3 executes air conditioning, and the heat storage utilization indoor unit 4
  • the drive control is performed in the heat storage use operation mode in which the air conditioning is executed.
  • the control part 41 has the function to drive-control combining a heat storage utilization operation mode and at least one of a heat storage operation mode and an air-conditioning operation mode.
  • the control unit 41 may be configured to control the heat storage unit 2 and the heat storage use indoor unit 4, and the heat source unit 1 and the circulation indoor unit 3 may be configured to be controlled by another control unit.
  • FIG. 4 is a configuration diagram illustrating the flow of the heat medium and the cold / warm water in the hot water heat storage operation mode of the heat storage air conditioning system 61.
  • FIG. 5 is a configuration diagram showing the flow of the heat medium and cold / warm water in the cold water heat storage operation mode of the heat storage air conditioning system 61. That is, FIG. 4 is a configuration diagram including the valve operation at the time of hot water heat storage (heating) and the flow direction of the heat medium and cold / warm water, and FIG.
  • FIG. 5 is the valve operation at the time of cold water heat storage (cooling), the heat medium and the cold / hot water.
  • FIG. 5 when referring to both a warm water thermal storage operation mode and a cold water thermal storage operation mode, it is named generically as a thermal storage operation mode.
  • the control unit 41 switches the four-way switching valve 10 in the direction in which the heat source unit 1 generates warm water. That is, in the heat source unit 1, the high-temperature and high-pressure gas refrigerant discharged from the compressor 9 flows into the load-side heat exchanger 11, exchanges heat with water, and condenses. Thereafter, the pressure is reduced by the expansion valve 12, and heat is exchanged with the outdoor air by the outdoor heat exchanger 13 to form a low-pressure gas, and the refrigeration cycle operation is again taken into the compressor 9. Therefore, in the warm water heat storage operation mode, the load side heat exchanger 11 functions as a condenser.
  • control unit 41 switches the flow path switching valve 17 so as to flow from the water pump 16 to the heat storage tank 15.
  • a water circuit is formed that returns from the lower part of the heat storage tank 15 to the upper part of the heat storage tank 15 through the load side heat exchanger 11 and the flow path switching valve 17 in order.
  • the control unit 41 controls the flow rate of the water pump 16 so that the water stored in the heat storage tank 15 is heated to 50 ° C. by heat exchange in the load-side heat exchanger 11. Due to the circulation in the water circuit, the cold / hot water stored in the heat storage tank 15 gradually rises to 50 ° C.
  • the control unit 41 switches the four-way switching valve 10 in a direction in which the heat source unit 1 generates cold water. That is, in the heat source unit 1, the high-temperature and high-pressure gas refrigerant discharged from the compressor 9 condenses in the outdoor heat exchanger 13 and is decompressed by the expansion valve 12, and then exchanges heat with water in the load-side heat exchanger 11. It becomes a cycle called. Therefore, in the cold water heat storage operation mode, the load side heat exchanger 11 functions as an evaporator.
  • control unit 41 switches the flow path switching valve 17 so as to flow from the heat storage tank 15 to the water pump 16.
  • the water in the upper part of the heat storage tank 15 flows to the load-side heat exchanger 11 by the water pump 16 and returns to the lower part of the heat storage tank 15 again. Since the water flowing into the load side heat exchanger 11 is cooled to about 10 ° C. by heat exchange, it is gradually cooled from the cold / hot water at the lower part of the heat storage tank 15.
  • FIG. 6 is a configuration diagram showing the flow of cold / hot water in the air conditioning operation mode of the heat storage air conditioning system 61.
  • the load-side heat exchanger 11 serves as a condenser, as in the above-described hot water heat storage operation mode.
  • the load-side heat exchanger 11 serves as an evaporator as in the above-described cold water heat storage operation mode.
  • the control unit 41 operates the water pump 16 both in the cooling operation and in the heating operation so that the cold / hot water circulates between the load-side heat exchanger 11 and the circulation indoor unit 3.
  • the flow path switching valve 17 is switched. Therefore, the cold / hot water generated by the load-side heat exchanger 11 is sent to the circulation indoor unit 3 through the water pump 16 and the flow path switching valve 17 of the heat storage unit 2, and the indoor heat exchanger 20 Exchange heat.
  • the amount of heat exchange in the indoor heat exchanger 20 is adjusted by the control unit 41 performing drive control of the indoor blower 21.
  • the temperature of the cold / hot water sent from the load side heat exchanger 11 to the indoor unit for circulation 3 is about 50 ° C. during the heating operation and about 10 ° C. during the cooling operation.
  • FIG. 7 is a configuration diagram illustrating the valve operation in the heat storage use operation mode of the heat storage air conditioning system 61.
  • the control unit 41 controls the heat storage use operation mode regardless of the operation state of the heat source unit 1. That is, the control unit 41 is configured not only to stop the heat source unit 1 but also to operate if there is a heat storage use request even when the heat source unit 1 is in the heat storage operation or the air conditioning operation.
  • the on-off valve 18 installed in the heat storage unit 2 is closed and installed in the heat storage use indoor unit 4.
  • the drainage on / off valve 24a thus opened is opened.
  • the air vent valve 25 is configured to close when the internal pressure of the heat storage chamber heat exchanger 22 increases, and to open when the pressure is equalized with the atmospheric pressure.
  • the inside of the heat storage indoor heat exchanger 22 is filled with air instead of water.
  • the control part 41 will open the on-off valve 18, and will close the drain on-off valve 24a.
  • the heat storage tank 15 Since the heat storage tank 15 is connected to city water and receives a city water pressure that is higher than the atmosphere, 50 ° C. cold / hot water in the heat storage tank 15 is generated when the control unit 41 opens the on-off valve 18. Then, it flows into the heat storage indoor heat exchanger 22 from the heat storage tank 15 through the heat storage utilization circuit 8. In the heat storage tank 15, the amount of water supplied from the on-off valve 18 is supplemented from city water. In the heat storage indoor heat exchanger 22, internal air is discharged from the air vent valve 25 by the inflow of cold / hot water, and the air vent valve 25 is closed when the hot / cold water at 50 ° C. is filled. To operate.
  • the indoor air sucked from the suction port 26 becomes a high temperature while exchanging heat with 50 ° C. cold / hot water stored in the heat storage indoor heat exchanger 22 as shown in FIG.
  • the air is supplied into the room from the outlet 27.
  • the cold / hot water at 50 ° C. located above the cold / hot water that has become 20 ° C. performs heat exchange with the air that has been sucked in thereafter. And with time progress, heat exchange with the remaining cold / hot water which is maintaining 50 degreeC in the water piping 22a located more upwards is performed.
  • the temperature of the entire cold / hot water in the water pipe 22a becomes 20 ° C. It will not be replaced.
  • the wind passing through the air passage from the suction port 26 to the blowout port 27 makes more contact with the water pipe 22a and the aluminum fins 22b.
  • the cold / hot water can be used for heating until most of the cold / hot water of about 50 ° C. once stored in the heat storage indoor heat exchanger 22 reaches about 20 ° C. That is, the temperature of the blown air close to 50 ° C. can be maintained until the heat storage in the heat storage indoor heat exchanger 22 is used up.
  • the circulation indoor unit 3 and the heat storage utilization indoor unit 4 may be installed in the same room, such as the air-conditioning target room 100 of FIGS. 1 and 4 to 7, or may be installed independently in different rooms. .
  • the circulation indoor unit 3 and the heat storage use indoor unit 4 are installed in the same room, the air conditioning capability exceeding the maximum capacity operation of the heat source unit can be obtained by using both the air conditioning operation mode and the heat storage use operation mode.
  • the heat storage use indoor unit 4 is provided alone, it can be installed only with a construction load for city water supply.
  • the heat exchanger internal volume of the heat storage utilization indoor unit 4 is 10 liters
  • the indoor air is 20 ° C.
  • the stored hot water temperature is 50 ° C.
  • the water temperature difference that can be used for air conditioning is 30 [K].
  • the specific heat of water is 4.18 [kJ / kg / K]
  • the amount of heat that can be used in one heat storage water storage is 1254 [kJ].
  • the amount of heat of 1254 [kJ] corresponds to the amount of heat that can maintain the heating capacity of 4 [kW] for 5 minutes, and is sufficient for air-conditioning a small space such as a washroom or a toilet.
  • a heat storage use unit having a heat exchanger internal volume of 20 liters or a plurality of heat storage use units can be used at the same time to perform start-up operation with air conditioning capacity several times the heat source unit capacity You can also.
  • the present embodiment adopts a configuration in which cold water that has absorbed heat or heat that has dissipated heat in the load-side heat exchanger 11 of the heat source unit 1 is drained without returning to the heat storage tank 15. For this reason, since the situation where the temperature of the cold water in the heat storage tank 15 rises by the cold water of a return pipe, or the situation where the temperature of the warm water in the heat storage tank 15 falls by the hot water of a return pipe can be avoided, the heat storage tank 15 Sufficient heat storage can be realized without increasing the size of the battery. Moreover, the capacity
  • the air conditioning operation mode and the heat storage use operation mode are simultaneously operated, so that the air conditioning capability of the heat storage indoor unit 4 can be added to the air conditioning capability of the heat source unit 1, and thus the maximum air conditioning
  • the capacity can be set to be twice or more the capacity of the heat source unit 1. Therefore, even if the heat source unit capacity is selected according to the steady air conditioning load, it is possible to meet a large capacity requirement for several minutes (during the air conditioning start-up operation) from the start of the air conditioning that requires a large air conditioning capacity.
  • heat can be stored using cheap power, such as late-night power or solar power generation, and used for air conditioning during peak hours of power demand during the day.
  • the operating cost can be reduced. That is, according to the heat storage air-conditioning system 61 in the present embodiment, it is possible to effectively use the cold or warm heat stored by heat exchange with the heat source unit 1 without increasing the capacity of the heat storage tank 15.
  • FIG. 8 is a configuration diagram illustrating an example of the heat storage air conditioning system 62 according to the present modification.
  • the heat storage air conditioning system 62 is characterized in that the heat storage can be used even in the circulation circuit in which the circulation indoor unit 3 is arranged. Therefore, below, the structure and operation
  • the heat storage air conditioning system 62 is additionally provided with a heat storage tank 31 for circulation and a water pump 32 for heat storage circulation as shown in FIG.
  • the heat storage tank 15A has a built-in water-water heat exchanger 33 for exchanging heat between the cold / hot water circulating through the circulation indoor unit 3 and the cold / hot water circulating through the heat storage utilization indoor unit 4.
  • the drainage part 29 is provided between the water piping which connects 4A of heat storage utilization indoor units and the heat storage tank 15A.
  • the drainage section 29 has a drain on / off valve 29a, a drain pump 34, and a drain pipe 29b.
  • the control unit 42 in the heat source unit 1A is different from the control unit 41 in that it has a functional configuration for controlling the heat storage circulation water pump 32.
  • FIG. 9 is a block diagram showing a functional configuration of the control unit 42.
  • the drainage control unit 42d of the control unit 42 opens the drainage opening / closing valve 29a and drives the drainage pump 34 when the temperature detected by the temperature detection unit 52 reaches a threshold value.
  • the valve control unit 41b closes the on-off valve 18, whereby the cold / hot water stored in the heat storage chamber heat exchanger 22 is drained from the drain pipe 29b.
  • the valve control unit 41b opens the on-off valve 18. Thereby, cold / warm water which is stored by heat exchange with the heat source unit 1 and stored in the heat storage tank 15 ⁇ / b> A is injected into the heat storage utilization indoor unit 4.
  • the valve control unit 41 b closes the on-off valve 18, and the blow control unit 41 c starts driving the heat storage chamber blower 23.
  • the drainage control unit 42d opens the drain on / off valve 24a of the drainage unit 24, and the drainage pump 34 is driven. Thereby, the cold / hot water stored in the heat storage indoor heat exchanger 22 is drained from the drain pipe 29b.
  • heat storage-use air conditioning is enabled by the operation of the heat storage circulation water pump 32 and circuit formation between the circulation heat storage tank 31 and the circulation indoor unit 3 by the flow path switching valve 17.
  • the heat storage utilization operation can be performed also in the indoor unit 3 for circulation, the capacity of the heat source device can be further reduced.
  • the city water system and the cold / hot water circulation circuit can be separated and the antifreeze liquid can be used in the circulation circuit via the circulation indoor unit 3, problems due to freezing in a cold region can be avoided.
  • the heat storage air conditioning system 62 has the drainage pump 34 that promotes the drainage of the cold / hot water stored in the heat storage indoor heat exchanger 22, the heat storage air conditioning system 62 is installed even when the drain pipe cannot be installed directly below the heat storage indoor unit 4. be able to. That is, the heat storage utilization indoor unit 4 can be installed even when there is no drainage system in the vicinity of a place where heat storage is desired. About another effect, it is the same as that of the thermal storage air conditioning system 61.
  • each embodiment mentioned above is a suitable specific example in a thermal storage air conditioning system, and the technical scope of this invention is not limited to these aspects, unless there is a description which limits this invention especially.
  • the operation of the heat storage air conditioning system 61 when performing the heating operation with hot water of about 50 ° C. is illustrated, but the heat storage air conditioning systems 61 and 62 function in the same manner when performing the cooling operation. The same effect can be obtained.
  • the control part 41 and 42 illustrated the structure provided in the heat source unit 1 and 1A, it should be provided in the thermal storage unit 2 and 2A, the indoor unit 3 for circulation, or the thermal storage utilization indoor unit 4 and 4A. Also good.
  • control units 41 and 42 are configured to control the heat storage unit 2 or 2A and the heat storage utilization indoor unit 4 or 4A, and the heat source unit 1 and the circulation indoor unit 3 are controlled by other control units. You may comprise.
  • the storage amount determination unit 41a may grasp the amount of cold / hot water in the heat storage indoor heat exchanger 22 from the elapsed time.

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  • Combustion & Propulsion (AREA)
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Abstract

L'invention concerne un système de climatisation à stockage thermique, comprenant : une unité source de chaleur pour produire de l'eau chaude et de l'eau froide ; une unité de stockage thermique comprenant un réservoir de stockage thermique qui stocke l'eau chaude et l'eau froide produites par l'unité source de chaleur ; une unité intérieure pour la circulation pour effectuer la climatisation par circulation de l'eau chaude et de l'eau froide produites par l'unité source de chaleur ; et une unité intérieure pour l'utilisation de l'énergie thermique stockée pour effectuer la climatisation à l'aide de l'eau chaude et de l'eau froide stockées dans le réservoir de stockage thermique. L'unité intérieure pour l'utilisation de l'énergie thermique stockée comprend un échangeur de chaleur intérieur pour la chaleur thermique stockée pour stocker l'eau chaude et l'eau froide accumulées dans le réservoir de stockage thermique et effectuer un échange de chaleur avec l'air extérieur et une unité d'évacuation d'eau pour évacuer l'eau chaude et l'eau froide stockées dans l'échangeur de chaleur intérieur pour la chaleur thermique stockée après l'échange de chaleur.
PCT/JP2015/072113 2015-01-15 2015-08-04 Système de climatisation à stockage thermique WO2016113937A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018211679A1 (fr) * 2017-05-19 2018-11-22 三菱電機株式会社 Système de surveillance de puissance

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0894151A (ja) * 1994-09-29 1996-04-12 Kajima Corp ファンコイル装置の制御方法及びファンコイル装置
JPH09243193A (ja) * 1996-03-12 1997-09-16 Mitsubishi Heavy Ind Ltd 蓄熱式空気調和機
JPH09287797A (ja) * 1996-04-23 1997-11-04 Kawasaki Heavy Ind Ltd 氷蓄熱システムの解氷運転制御方法
JP2001108385A (ja) * 1999-10-04 2001-04-20 Yamato Setsubi Construction Co Ltd 蓄熱装置
US20100204837A1 (en) * 2007-07-04 2010-08-12 Jan Rybon Climate control system for the rooms of buildings
WO2011040387A1 (fr) * 2009-09-29 2011-04-07 三菱電機株式会社 Machine de conditionnement d'air et de chauffage d'eau à accumulation de chaleur
US20140298829A1 (en) * 2011-10-13 2014-10-09 Carrier Corporation Thermal energy storage in a chiller system
US20150007601A1 (en) * 2012-01-16 2015-01-08 COMMISSARIAT A I'energie atomique et aux ene alt Cooling system for a building with low energy consumption

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0894151A (ja) * 1994-09-29 1996-04-12 Kajima Corp ファンコイル装置の制御方法及びファンコイル装置
JPH09243193A (ja) * 1996-03-12 1997-09-16 Mitsubishi Heavy Ind Ltd 蓄熱式空気調和機
JPH09287797A (ja) * 1996-04-23 1997-11-04 Kawasaki Heavy Ind Ltd 氷蓄熱システムの解氷運転制御方法
JP2001108385A (ja) * 1999-10-04 2001-04-20 Yamato Setsubi Construction Co Ltd 蓄熱装置
US20100204837A1 (en) * 2007-07-04 2010-08-12 Jan Rybon Climate control system for the rooms of buildings
WO2011040387A1 (fr) * 2009-09-29 2011-04-07 三菱電機株式会社 Machine de conditionnement d'air et de chauffage d'eau à accumulation de chaleur
US20140298829A1 (en) * 2011-10-13 2014-10-09 Carrier Corporation Thermal energy storage in a chiller system
US20150007601A1 (en) * 2012-01-16 2015-01-08 COMMISSARIAT A I'energie atomique et aux ene alt Cooling system for a building with low energy consumption

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018211679A1 (fr) * 2017-05-19 2018-11-22 三菱電機株式会社 Système de surveillance de puissance

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