Indoor split wall-mounted air source heat pump system

Abstract

An indoor split wall-mounted air source heat pump system comprises an indoor unit and an outdoor unit. The indoor unit and the outdoor unit are connected with each other through a copper pipe wrapped with a heat preservation layer. The indoor unit part comprises a shell, a wire controller, a built-in circulating water pump, an efficient tank type heat exchanger and a connecting pipeline, a silencing wall is arranged between the built-in circulating water pump and the efficient tank type heat exchanger, and a water flow switch is arranged at a water outlet part of the efficient tank type heat exchanger; the outdoor unit part comprises a shell, a compressor, a fin heat exchanger, a fan, a four-way reversing valve, an electronic expansion valve, an economizer and a connecting pipeline. The system change of the heat pump can be easily realized through the control of a user, the switching between refrigeration and heating can be realized in different temperature environments under the condition of not changing any structure, and great convenience is brought to the daily life of the user.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and in particular to an indoor split wall-mounted air source heat pump system. Background Technology

[0002] In recent years, the country has vigorously promoted the use of clean energy for cooling and heating, among which high-efficiency heat pump technology, low-temperature energy storage technology and integrated cooling and heating technology are key technologies for electricity substitution.

[0003] For example, Chinese utility model patent CN202222847542.5 provides a combined heating system of air source heat pump and gas wall-hung boiler; Chinese utility model CN202121742865.7 provides a split-type air source heat pump; and Chinese utility model CN201921547149.6 provides a split-type silent air source heat pump unit.

[0004] As a heating device, air source heat pumps are increasingly widely used in heating because they do not pollute the environment like boilers, while also having the functions of cooling and air conditioning. Therefore, they are widely used in building heating and air conditioning, and air source heat pumps have become the first choice for people's homes.

[0005] Most air source heat pump units currently on the market are integrated units. Integrated air source heat pumps occupy a large area and are heavy, making them unsuitable for residential buildings. Furthermore, as people's demands for quality of life increase, higher requirements are being placed on the noise levels of air source heat pump units. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by proposing an indoor split wall-mounted air source heat pump system that is easy to use in residential buildings.

[0007] The technical problem to be solved by this utility model is achieved through the following technical solution: an indoor split wall-mounted air source heat pump system, characterized by:

[0008] It consists of two parts: an indoor unit and an outdoor unit; the indoor and outdoor units are connected to each other by copper pipes covered with insulation.

[0009] The indoor unit consists of a casing, a wired controller, a built-in circulating water pump, a high-efficiency tank heat exchanger, and connecting pipes. A soundproof wall is installed between the built-in circulating water pump and the high-efficiency tank heat exchanger, and a flow switch is installed at the outlet of the high-efficiency tank heat exchanger.

[0010] The outdoor unit consists of a casing, compressor, finned heat exchanger, fan, four-way reversing valve, electronic expansion valve, economizer, and connecting pipes.

[0011] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: the indoor unit adopts a wall-mounted structure, and its outer shell is installed on the wall through a wall-mounted connector.

[0012] Compared with existing technologies, this utility model adopts a split-type heat pump with a wall-mounted indoor unit, which is convenient for use in residential buildings. Simultaneously, placing the compressor in the outdoor unit reduces the impact of unit operating noise on people's lives. The outdoor unit is equipped with a controllable four-way reversing valve for easy adjustment and control. Users can easily modify the heat pump system, switching between cooling and heating in different temperature environments without altering any structure, greatly facilitating daily life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the heating cycle operation principle of this utility model;

[0014] Figure 2 This is a schematic diagram illustrating the refrigeration cycle operation principle of this utility model. Detailed Implementation

[0015] The specific technical solutions of the present invention are further described below. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, and to facilitate a better understanding of the present invention by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments, and do not constitute a limitation on its rights. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0016] An indoor split wall-mounted air source heat pump system includes an indoor unit 2 and an outdoor unit 1; the indoor unit and the outdoor unit are connected to each other by copper pipes covered with insulation layer; the air outlet 4 of the indoor unit leads to the room.

[0017] The indoor unit consists of a casing, a wired controller, a built-in circulating water pump 5, a high-efficiency tank heat exchanger 3, and connecting pipes. A soundproof wall 10 is installed between the built-in circulating water pump and the high-efficiency tank heat exchanger, and a flow switch 11 is installed at the outlet of the high-efficiency tank heat exchanger.

[0018] The outdoor unit consists of a casing, compressor 7, finned heat exchanger 9, fan, four-way reversing valve 8, electronic expansion valve, economizer 6, and connecting pipes.

[0019] The indoor unit adopts a wall-mounted structure, and its outer casing is installed on the wall via wall-mounting connectors.

[0020] When the heating function is activated, ports D and C of the four-way valve are connected, and ports S and E are connected. The high-temperature and high-pressure gas generated by the compressor enters the high-efficiency tank heat exchanger in the indoor unit through the pipeline and the insulated copper pipe to exchange heat with the water circuit. The water flow generated by the water pump circulates the heat-exchanged hot water into the water tank and provides it to the user. The high-temperature, high-pressure gaseous refrigerant, after heat exchange, becomes a high-temperature, high-pressure liquid refrigerant. This liquid refrigerant enters the economizer and exchanges heat with the medium-pressure liquid refrigerant, which has undergone throttling once. This process transforms the medium-pressure liquid refrigerant into a gaseous state while simultaneously creating a subcooled liquid refrigerant, thus improving system efficiency. The subcooled liquid refrigerant then splits into two parts. One part, after throttling, becomes the aforementioned medium-pressure liquid refrigerant, while the other part, after throttling, becomes a low-pressure gas-liquid mixture. This latter part enters the finned heat exchanger and, with the aid of a fan, exchanges heat with the air, becoming a low-temperature, low-pressure gas. This gas then enters the compressor, becoming a high-temperature, high-pressure gas, completing a reverse Carnot cycle. In this reverse Carnot cycle, the heat from the air is continuously transferred to the user by the split-type air-source boiler. Thus, air energy becomes the primary source of heat for the air-source boiler, a heating method with extremely high energy utilization efficiency.

[0021] When the unit needs cooling, the four-way valve is energized, connecting ports D and E, and ports C and S. The high-temperature, high-pressure gas generated by the compressor enters the finned heat exchanger, where it exchanges heat with the air under the influence of the fan's airflow, becoming a high-temperature, high-pressure liquid refrigerant. Then, it passes through the electronic expansion valve to become a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture enters the high-efficiency tank, where it exchanges heat with the circulating water, maintaining a lower water level in the tank and providing continuous cooling to the user.

[0022] The heat pump system can be easily modified by the user, and the switching between cooling and heating can be achieved in different temperature environments without changing any structure, which greatly facilitates the user's daily life.

Claims

1. An indoor split-type wall-mounted air source heat pump system, characterized in that: It consists of two parts: an indoor unit and an outdoor unit; the indoor and outdoor units are connected to each other by copper pipes covered with insulation. The indoor unit consists of a casing, a wired controller, a built-in circulating water pump, a high-efficiency tank heat exchanger, and connecting pipes. A soundproof wall is installed between the built-in circulating water pump and the high-efficiency tank heat exchanger, and a flow switch is installed at the outlet of the high-efficiency tank heat exchanger. The outdoor unit consists of a casing, compressor, finned heat exchanger, fan, four-way reversing valve, electronic expansion valve, economizer, and connecting pipes.

2. The indoor split-type wall-mounted air source heat pump system according to claim 1, characterized in that: The indoor unit adopts a wall-mounted structure, and its outer casing is installed on the wall via wall-mounting connectors.

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