CN-224230107-U - Heat pump hot water unit and air heat pump system

CN224230107UCN 224230107 UCN224230107 UCN 224230107UCN-224230107-U

Abstract

The utility model relates to the technical field of heat pump systems, and provides a heat pump hot water unit and an air heat pump system, wherein the unit comprises a buffer water tank and a plurality of indoor tail ends, water inlet ends of the plurality of indoor tail ends are communicated with the buffer water tank, and water outlet ends of the plurality of indoor tail ends are communicated with the buffer water tank; A main control valve is arranged between the water inlet end of the indoor end and the buffer water tank, each main control valve can independently adjust the on-off state of the corresponding indoor end, so that heating or refrigerating requirements of different areas are met according to requirements, a water mixing valve is arranged between the water inlet end of at least one indoor end and the buffer water tank, the water mixing valve is connected between the water outlet end of the corresponding indoor end and the buffer water tank, and the water supply temperature of the corresponding indoor end is adjusted through the water mixing valve, so that different indoor ends are different in temperature, and user experience is improved.

Inventors

SUN YANBIN
ZHANG BAISHENG

Assignees

青岛海尔空调器有限总公司
海尔智家股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250512

Claims (10)

1. A heat pump hot water unit, comprising: a buffer water tank; The indoor water supply device comprises a plurality of indoor tail ends, a main control valve and a water mixing valve, wherein the water inlet ends of the indoor tail ends are communicated with the buffer water tank, the water outlet ends of the indoor tail ends are communicated with the buffer water tank, the main control valve is arranged between the water inlet ends of the indoor tail ends and the buffer water tank, the water mixing valve is arranged between the water inlet ends of at least one indoor tail end and the buffer water tank, and the water mixing valve is connected between the water outlet ends corresponding to the indoor tail ends and the buffer water tank.
2. The heat pump hot water unit according to claim 1, wherein the water inlet ends of the plurality of indoor ends are communicated with the buffer water tank through a water supply pipe; The water inlet end of the water supply pipeline is communicated with the buffer water tank, the water outlet end of the water supply pipeline is provided with a plurality of water supply branch pipes, the water supply branch pipes are communicated with the water inlet ends of the indoor tail ends in one-to-one correspondence, and each water supply branch pipe is provided with a main control valve.
3. The heat pump hot water unit according to claim 2, further comprising a controller, wherein a main-path temperature sensor is arranged between the water mixing valve and the indoor end, and the controller is electrically connected with the main-path temperature sensor and the water mixing valve respectively.
4. A heat pump water heater unit according to claim 3, wherein a plurality of said indoor ends comprise a fan coil and a radiator, said radiator comprising a radiator and/or a floor heating coil; the water mixing valve is arranged between the heating element and the buffer water tank.
5. The heat pump water heater unit according to claim 4, wherein the number of the heating elements is plural, the plural heating elements are connected to the corresponding water supply branch pipes through the flow dividing members for adjusting the flow rates of the plural heating elements.
6. The heat pump hot water unit according to claim 5, wherein the diverting member comprises: The water inlet end of the diversion pipeline is connected with the water supply branch pipe, the water outlet end of the diversion pipeline is provided with a plurality of diversion branch pipes, and the diversion branch pipes are connected with the heating components in a one-to-one correspondence manner; The branch control valves are arranged in a plurality of the branch pipes in a one-to-one correspondence manner.
7. The heat pump water heater unit according to claim 6, wherein the heating element is provided with a branch temperature sensor, and the controller is electrically connected to the branch temperature sensor and the branch control valve.
8. A heat pump water heater unit according to any one of claims 4 to 7, wherein the indoor end further comprises a ceiling coil.
9. A heat pump water heater unit according to any one of claims 4 to 7, wherein the outer wall of the heating element is provided with a heat conducting layer.
10. An air heat pump system comprising a heat pump hot water unit according to any one of claims 1 to 9.

Description

Heat pump hot water unit and air heat pump system Technical Field The utility model relates to the technical field of heat pump systems, in particular to a heat pump hot water unit and an air heat pump system. Background The air source heat pump system is an efficient energy conversion device, low-grade heat energy is extracted from ambient air, and heat is transferred to an indoor space after the temperature is raised by acting of a compressor, so that heating in winter is realized. The working principle of the device is based on reverse Carnot cycle, and the device mainly comprises core components such as an evaporator, a compressor, a condenser, an expansion valve and the like. In the winter operation mode, the evaporator absorbs heat from the outdoor air, the refrigerant evaporates into low-temperature and low-pressure gas in the evaporator, the low-temperature and low-pressure gas is compressed by the compressor and becomes high-temperature and high-pressure gas, then the high-temperature and high-pressure gas exchanges heat with indoor circulating water in the condenser, the heat is released to heat the water body, and finally the indoor air is heated through terminal heat dissipation equipment (such as a fan coil, a floor heater and a radiator). In the prior art, a heat pump water heater generally adopts a single heat source to supply a plurality of indoor tail ends (such as a fan coil, a floor heating device and a radiator), but the temperature adjustment capability of each area is limited due to the difference of heat preservation performance, space size and heat load requirements of different areas. For example, in a large-area building, a heating delay or uneven temperature may occur in an area far from the host, and an area near the host may overheat, resulting in poor user experience. Disclosure of utility model The utility model provides a heat pump hot water unit and an air heat pump system, which are used for solving the defect of poor user experience in the prior art and realizing different indoor tail end differentiated temperatures so as to improve the user experience. The utility model provides a heat pump hot water unit, comprising: a buffer water tank; The indoor water supply device comprises a plurality of indoor tail ends, a main control valve and a water mixing valve, wherein the water inlet ends of the indoor tail ends are communicated with the buffer water tank, the water outlet ends of the indoor tail ends are communicated with the buffer water tank, the main control valve is arranged between the water inlet ends of the indoor tail ends and the buffer water tank, the water mixing valve is arranged between the water inlet ends of at least one indoor tail end and the buffer water tank, and the water mixing valve is connected between the water outlet ends corresponding to the indoor tail ends and the buffer water tank. According to the heat pump water heating unit provided by the utility model, the water inlet ends of the indoor tail ends are communicated with the buffer water tank through the water supply pipeline; The water inlet end of the water supply pipeline is communicated with the buffer water tank, the water outlet end of the water supply pipeline is provided with a plurality of water supply branch pipes, the water supply branch pipes are communicated with the water inlet ends of the indoor tail ends in one-to-one correspondence, and each water supply branch pipe is provided with a main control valve. The heat pump water heating unit provided by the utility model further comprises a controller, a main-way temperature sensor is arranged between the water mixing valve and the indoor tail end, and the controller is electrically connected with the main-way temperature sensor and the water mixing valve respectively. According to the heat pump water heating unit provided by the utility model, a plurality of indoor ends comprise fan coils and heating elements, and the heating elements comprise heating radiators and/or floor heating coils; the water mixing valve is arranged between the heating element and the buffer water tank. According to the heat pump water heating unit provided by the utility model, the number of the heating elements is multiple, the heating elements are connected to the corresponding water supply branch pipes through the flow dividing parts, and the flow dividing parts are used for adjusting the flow of the heating elements. According to the heat pump hot water unit provided by the utility model, the flow dividing component comprises: The water inlet end of the diversion pipeline is connected with the water supply branch pipe, the water outlet end of the diversion pipeline is provided with a plurality of diversion branch pipes, and the diversion branch pipes are connected with the heating components in a one-to-one correspondence manner; The branch control valves are arranged in a plurality of the branch pipes in a one-to-one correspondence manner. According t