JPH049980B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerant-heated hot water heater/cooler.

BACKGROUND ART As shown in FIG. 2, a conventional heat pump hot water heater/cooler includes a compressor 1, a four-way valve 2, a three-way valve 3, an indoor unit 4, a first capillary reach tube 5, a second capillary reach tube 6, A cooling hot water supply cycle device comprising a water-refrigerant heat exchanger 7 connected in sequence, the compressor 1, the four-way valve 2, the outdoor unit 8, the third capillary reach tube 9, the first electromagnetic valve 10, and the water-refrigerant heat exchanger. 7, an air heat collecting type hot water supply cycle device formed by sequentially connecting the three-way valve 3, the compressor 1, the four-way valve 2, the outdoor unit 8, the second solenoid valve 11, the first capillary reach tube 5, An atmospheric heat radiation type cooling cycle device configured by sequentially connecting the indoor unit 4 and the three-way valve 3, the compressor 1, the four-way valve 2, the outdoor unit 8, the third capillary reach tube 9, and the third capillary reach tube 9. It consists of an atmospheric heat collection type heating cycle device configured by sequentially connecting a solenoid valve 12, the indoor unit 4, and the three-way valve 3 to form a cycle, and the water/refrigerant heat exchanger 7, water circulation pump 13, and hot water storage tank 14 connected. It consisted of a water heating and hot water supply system, and was designed to collect atmospheric heat and perform heating for hot water supply or heating through an indoor unit. (For example, Japanese Unexamined Patent Application Publication No. 59-157459) Problems to be Solved by the Invention However, in the above configuration, generally, when the outside temperature falls, the hot water heating capacity and heating capacity tend to decrease. There was a problem that it could not be used in seasons where the outside temperature was low, such as in cold regions. On the other hand, high-pressure refrigerant or low-pressure refrigerant is heated with a gas burner, oil burner, etc., and a compressor is used as a refrigerant pump to form a heat transfer system, which can be used for heating,
Alternatively, there are refrigerant-heated heating and cooling systems that increase hot water supply capacity. In this system, the compressor is used as a refrigerant pump, so electricity is required for heat transfer, and the atmospheric heat collection cycle at low outside temperatures can be stopped to utilize the amount of heat generated by heating the refrigerant. Therefore, there was a problem that a large capacity of the burner section, etc. was required, resulting in a large size. Furthermore, this type of refrigerant heating system has the problem that the refrigerant leaks and becomes toxic when heated, and the corrosion resistance and durability of the refrigerant passage system in the burner section have become important issues.

Means for Solving the Problems In order to solve the above problems, the refrigerant heating type hot water heating/cooling device of the present invention includes a boiler hot water supply device exclusively for hot water supply function, a heat pump refrigeration cycle device for performing air conditioning, and the heat pump refrigeration system. The condensed high-pressure refrigerant after heat utilization is guided through the cycle device, heated with hot water from the boiler hot water supply device, the heated refrigerant is heat-transferred without electricity, and is again superimposed with the high-pressure refrigerant of the heat pump refrigeration cycle device. This is a refrigerant-heating hot water heating/cooling machine consisting of a bubble pump type heat transfer device used for space heating.

Effect The present invention has the above-described configuration, heats a refrigerant with hot water from a boiler water heater, and uses this amount of heat without electricity.
This is used for heating by collecting atmospheric heat and superimposing it with the amount of heat sent by a heat pump.For this reason, the refrigerant is not directly heated by a burner, so corrosion of the heat exchange part may occur. Even if the refrigerant leaks, there is no problem of toxic gas being generated due to burner heating. In addition, since the heat of the refrigerant heated by hot water is transferred and utilized without electricity, it can be said that the system has an extremely high energy-saving effect. In addition, since this amount of transferred heat is used by superimposing the amount of heat generated by the heat pump of the conventional atmospheric heat collection type heat pump cycle device, it is possible to utilize a large amount of heat while saving power.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings. In FIG. 1, a compressor 1, a four-way valve 2, an indoor unit 4 having an air blower 3, a first check valve 5,
and the first expander 6, a first expansion device configured in a parallel circuit, a two-way valve 7, a second check valve 8, and a second expander 9.
An atmospheric heat collecting type heat pump refrigeration cycle device is constructed by sequentially connecting a second expansion device configured in a parallel circuit, an outdoor unit 11 having an air blower 10, and an accumulator 12. Further, a boiler water heating device is constructed by connecting a boiler type water heating device 13, a hot water storage tank 14, and a water supply circuit consisting of the hot water storage tank 14, a water supply circuit 15, and a hot water supply circuit 16. Furthermore, the hot water storage tank 14 of the boiler hot water supply system, the water circulation pump 17, the refrigerant heater 18 that heats the refrigerant using hot water, the first check valve 19 for heat transfer, and the refrigerant control device 2
0, the second check valve 21 for heat transfer is connected to the first expansion device, the refrigerant heater 18 is connected to the discharge part of the compressor 1, and the refrigerant control device 20 is connected; The discharge part of the compressor 1 is connected to a two-way valve 22.
A bubble pump type heat transfer device is configured in which the pressure between the refrigerant control device 20 and the refrigerant heater 18 is balanced by connecting the refrigerant control device 20 and the refrigerant heater 18, and the refrigerant vapor generated by heating the refrigerant transfers heat through the discharge part of the compressor 1. has been done.

Note that the solid arrow lines indicate the heating cycle, and the dotted lines indicate the cooling cycle.

In the above configuration, the indoor unit 4 condenses the first
A part of the liquid refrigerant flowing out of the expansion device flows into the refrigerant control device 20 via the second check valve 21 for heat transfer, and is stored therein. The liquid refrigerant in the refrigerant device 20 is heated at the same time as the two-way valve 22 is opened and closed and dropped into the refrigerant heater 18 whose pressure is balanced.
Changes state to refrigerant vapor. This refrigerant vapor is superimposed on the superheated refrigerant vapor discharged from the compressor 1, heat is transferred to the indoor unit 4, and condensed by heat radiation from the indoor unit 4. This is because the amount of heat collected from the outdoor unit 11 is amplified by the heat pump of the compressor 1, and this amount of heat is superimposed with the amount of heat obtained by the refrigerant heater described above. Therefore, even if the amount of heat collected from the atmosphere decreases when the outside temperature is low, the heating capacity does not decrease and comfortable heating can be achieved. Furthermore, a cooling effect can be obtained by stopping the water circulation pump, switching the four-way valve 2 to the refrigerant cycle as shown by the dotted line, and causing the refrigerant to flow as shown by the dotted arrow.

Effects of the Invention As described above, according to the refrigerant heating type hot water heating/cooling device of the present invention, the following effects can be obtained.

(1) The amount of heat collected from the atmosphere is amplified by the heat pump of the compressor, and the amount of heat obtained from the refrigerant heater is added to the amount of heat obtained from the refrigerant heater by the amount of heat from the boiler water heater, so the heating capacity at low outside temperatures is can be increased.

(2) The heat obtained from the refrigerant heater is transported by a type of bubble pump that does not require electricity, resulting in a large energy-saving effect.

(3) Since the refrigerant heater uses hot water to heat the refrigerant, the refrigerant will not be overheated.
The properties of the refrigerant are stable, and if there is a sudden refrigerant leak, no toxic gas is generated and it is safe.

[Brief explanation of drawings]

FIG. 1 is a cycle configuration diagram of a refrigerant-heating hot water supply heating/cooling machine showing an embodiment of the present invention, and FIG. 2 is a cycle configuration diagram of a heat pump hot water supply heating/cooling machine showing a conventional example. 1... Compressor, 2... Four-way valve, 4... Indoor unit,
5... First check valve, 6... First expander, 8... Second check valve, 9... Second expander, 11... Outdoor unit,
12... Accumulator, 13... Boiler type water heating device, 14... Hot water storage tank, 17... Water circulation pump, 18... Refrigerant heater, 19... Heat transfer first
Check valve, 20... Refrigerant control device, 21... Second check valve for heat transfer, 22... Two-way valve.

Claims (1)

[Scope of Claims] 1. An expansion circuit in which two expansion devices each having a parallel circuit configuration of a compressor, a four-way valve, an indoor heat exchanger, a check valve and an expander are connected face-to-face in series, and an outdoor heat exchanger are sequentially connected. A boiler hot water supply system consisting of a connected heat pump refrigeration cycle device, a boiler type water heating system, a hot water storage tank, and a water supply/hot water supply circuit, a refrigerant heater using hot water in the boiler hot water supply system, the refrigerant heater, and a heat transfer first
a check valve, a refrigerant control device, a second check valve for heat transfer, the expansion device, the indoor heat exchanger, the four-way valve,
A refrigerant heating type hot water supply heating/cooling machine comprising a bubble pump type heat transfer device in which the compressors are connected in sequence. 2. A refrigerant-heating hot water supply heating/cooling machine according to claim 1, which is configured by connecting an open/close type refrigerant control valve between a refrigerant control device and a discharge portion of the compressor.