A high-efficiency energy-saving heat pump heating device

Abstract

This utility model relates to the field of heating equipment technology and discloses a high-efficiency and energy-saving heat pump heating device, including: a frame, cover plates, cabinet doors, a cabinet bottom frame, and a heat pump assembly. The frame is fixed to the upper end of the cabinet bottom frame. Cover plates are installed on the left and right sides, rear side, and top of the frame. The rear cover plate is provided with ventilation holes. The cabinet door is installed on the front side of the frame and can be opened and closed. The heat pump assembly includes a heat exchanger, a first oil separator, a second oil separator, a compressor, an expansion valve, and a four-way reversing valve. The first oil separator, the second oil separator, and the compressor are fixed at intervals on the upper end of the cabinet bottom frame. There are two heat exchangers, which are fixed at intervals on the rear side of the frame inside by heat exchanger mounting plates. The rear side of the heat exchanger is provided with a heat exchanger inlet and a heat exchanger outlet. This utility model has a high degree of structural integration, is easy to install and implement in the field, can provide heating at different temperatures, has high heat exchange efficiency, and is flexible and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a high-efficiency and energy-saving heat pump heating equipment. Background Technology

[0002] Compared with traditional heating methods such as boilers, heat pump heating has the following two main advantages: (1) it can operate at lower outdoor temperatures, unlike boiler heating which requires high-temperature water; (2) it can save energy, because the energy source of heat pump units is renewable resources such as air and water, while boiler heating requires fossil energy such as coal and natural gas. With the continuous advancement of technology, heat pump heating has been widely used.

[0003] Existing technologies include some research on heat pump energy-saving heating, but these mainly focus on the heat pump energy-saving heating system, its principles, and pipeline connections. They cover less of the structural integration, installation, and layout of heat pump heating equipment, making them inconvenient for field installation and implementation. Furthermore, they can only output heating for one channel, limiting their flexibility. For example, the utility model patent application CN202021830391.7, entitled "A Low-Temperature Dual-Energy Heat Pump Unit," can automatically open or close the refrigerant flow of the finned evaporator and solar collector based on real-time temperature control by a PID controller, ensuring the compressor operates at optimal efficiency and achieving significant energy savings. However, it can only output heating for one channel and also covers less of the structural installation and layout of the heat pump unit, making it inconvenient for field installation. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a high-efficiency and energy-saving heat pump heating equipment with high structural integration, which is easy to install and implement in the field, can provide heating at different temperatures, has high heat exchange efficiency, and is flexible and convenient to use.

[0005] This utility model adopts the following technical solution: a high-efficiency and energy-saving heat pump heating device, including: a frame, cover plates, cabinet doors, cabinet bottom frames, and heat pump components. The frame is fixed to the upper end of the cabinet bottom frame. Cover plates are installed on the left and right sides, rear side, and top of the frame. Ventilation holes are provided on the rear cover plate. The cabinet door is installed on the front side of the frame and can be opened and closed. The heat pump components include a heat exchanger, a first oil separator, a second oil separator, a compressor, an expansion valve, and a four-way reversing valve. The first oil separator, the second oil separator, and the compressor are fixed at intervals on the upper end of the cabinet bottom frame. There are two heat exchangers, which are fixed at intervals on the rear side of the frame inside by heat exchanger mounting plates. The rear side of the heat exchanger is provided with... It is equipped with a heat exchanger inlet and a heat exchanger outlet, both of which extend to the outside of the rear cover plate. The first ends of the two heat exchangers are connected to an expansion valve via a second heat exchanger conduit. The second ends of each of the two heat exchangers are connected to two ports of a four-way reversing valve via a first heat exchanger conduit. The third port of the four-way reversing valve is connected to one end of the first oil separator via a second oil separator conduit. The second end of the first oil separator is connected to one end of the compressor via a second compressor conduit. The second end of the compressor is connected to one end of the second oil separator via a first compressor conduit. The second end of the second oil separator is connected to the fourth port of the four-way reversing valve via a first oil separator conduit.

[0006] Furthermore, a drying filter is provided between the first ends of the two heat exchangers, and the drying filter is connected to the expansion valve through an intermediate conduit.

[0007] Furthermore, a pressure gauge is connected to each of the first oil separation conduit and the second compressor conduit.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a high-efficiency and energy-saving heat pump heating device, which includes two heating circuits. Its structure is highly integrated, making it easy to install and implement in the field. The two heating circuits can provide heating at different temperatures, with the first heating circuit providing higher temperature heating and the second heating circuit providing lower temperature heating. It has high heat exchange efficiency and is flexible and convenient to use. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the high-efficiency and energy-saving heat pump heating equipment of this utility model. Figure 1 ;

[0010] Figure 2 This is a schematic diagram of the overall structure of the high-efficiency and energy-saving heat pump heating equipment of this utility model. Figure 2 ;

[0011] Figure 3 This is a schematic diagram of the structure of this utility model after removing the rear side cover plate;

[0012] Figure 4 This is a schematic diagram of the structure of this utility model after removing the cover plate and cabinet door;

[0013] Figure 5 This is a schematic diagram of the connection structure of the heat pump component in this utility model.

[0014] In the diagram: Frame-1; Cover plate-2; Cabinet door-3; Cabinet bottom frame-4; First heat exchanger conduit-11; First oil separator conduit-12; First compressor conduit-13; Second compressor conduit-14; Second heat exchanger conduit-15; Second oil separator conduit-16; Intermediate conduit-17; Heat exchanger-21; First oil separator-22; Second oil separator-23; Compressor-24; Expansion valve-25; Four-way reversing valve-26; Dryer filter-27; Pressure gauge-28; Heat exchanger inlet-31; Heat exchanger outlet-32; Heat exchanger mounting plate-33; Ventilation vent-34. Detailed Implementation

[0015] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0016] The purpose of this invention is to address the shortcomings of existing technologies by providing a highly efficient and energy-saving heat pump heating device.

[0017] Example 1

[0018] This embodiment provides a high-efficiency and energy-saving heat pump heating device, referring to... Figures 1-5As shown, it includes: frame 1, cover plate 2, cabinet door 3, cabinet bottom frame 4 and heat pump assembly. Frame 1 is fixed to the upper end of cabinet bottom frame 4. Cover plates 2 are installed on the left and right sides, rear side and top of frame 1. Ventilation vents 34 are provided on the rear cover plate 2. Cabinet door 3 is installed on the front side of frame 1 and can be opened and closed, which makes it convenient to open cabinet door 3 to inspect and maintain the internal components of heat pump heating equipment. The heat pump assembly includes a heat exchanger 21, a first oil separator 22, a second oil separator 23, a compressor 24, an expansion valve 25, and a four-way reversing valve 26. The first oil separator 22, the second oil separator 23, and the compressor 24 are fixed at intervals on the upper end of the cabinet bottom frame 4. There are two heat exchangers 21, which are fixed at intervals on the rear side of the frame 1 through heat exchanger mounting plates 33. In this embodiment, the heat exchanger 21 is a plate heat exchanger in the prior art. The rear side of the heat exchanger 21 is provided with a heat exchanger inlet 31 and a heat exchanger outlet 32, both of which extend to the outside of the rear cover plate 2. The first ends of the two heat exchangers 21 are connected to the expansion valve 25 through a second heat exchanger conduit 15. A dryer filter 27 is also provided between the first ends of the two heat exchangers 21, and the dryer filter 27 is connected to the expansion valve 25 through an intermediate conduit 17.

[0019] The second ends of each of the two heat exchangers 21 are connected to the two ports of the four-way reversing valve 26 through a first heat exchanger conduit 11. The third port of the four-way reversing valve 26 is connected to one end of the first oil separator 22 through the second oil separator conduit 16. The second end of the first oil separator 22 is connected to one end of the compressor 24 through the second compressor conduit 14. The second end of the compressor 24 is connected to one end of the second oil separator 23 through the first compressor conduit 13. The second end of the second oil separator 23 is connected to the fourth port of the four-way reversing valve 26 through the first oil separator conduit 12. A pressure gauge 28 is connected to the first oil separator conduit 12 and the second compressor conduit 14 to measure the refrigerant pressure in the pipeline.

[0020] This utility model discloses a high-efficiency and energy-saving heat pump heating device, which includes two heating circuits. Each heating circuit consists of a heat exchanger 21, a first heat exchanger conduit 11, and a second heat exchanger conduit 15. Its structure has a high degree of integration, facilitating outdoor installation and implementation. During operation, the compressor 24 compresses the refrigerant, changing it from a low-pressure, low-temperature state to a high-pressure, high-temperature state. The refrigerant sequentially passes through the second compressor conduit 14, the first oil separator 22, and the second oil separator conduit 16 before reaching one heating circuit. After the refrigerant's temperature is reduced by heat exchange, it then passes through the expansion valve 25, the intermediate conduit 17, and the dryer filter 27 before reaching the second heating circuit. Finally, it returns to the compressor 24 via the first oil separator conduit 12, the second oil separator 23, and the first compressor conduit 13. In the two heating circuits, water flows into the heat exchanger 21 from the heat exchanger inlet 31. In the plate heat exchanger 21, the high-temperature refrigerant exchanges heat with the water, causing the incoming water to heat up. Then, it flows out from the heat exchanger outlet 32 ​​for heating. The two heating circuits can provide heating at different temperatures. The first heating circuit provides heating at a higher temperature, and the second heating circuit provides heating at a lower temperature. It has high heat exchange efficiency and is flexible and convenient to use.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency and energy-saving heat pump heating device, characterized in that, include: The frame (1), cover plate (2), cabinet door (3), cabinet bottom frame (4), and heat pump assembly are provided. The frame (1) is fixed to the upper end of the cabinet bottom frame (4). Cover plates (2) are installed on the left and right sides, the rear side, and the top of the frame (1). Ventilation holes (34) are provided on the rear cover plate (2). The cabinet door (3) is installed on the front side of the frame (1) and can be opened and closed. The heat pump assembly includes a heat exchanger (21), a first oil separator (22), a second oil separator (23), a compressor (24), an expansion valve (25), and a four-way reversing valve (26). The first oil separator (22), the second oil separator (23), and the compressor (24) are fixed at intervals on the upper end of the cabinet bottom frame (4). There are two heat exchangers (21), which are fixed at intervals on the rear side of the frame (1) through heat exchanger mounting plates (33). A heat exchanger inlet (31) and a heat exchanger outlet are provided on the rear side of the heat exchanger (21). The liquid inlet (32), heat exchanger inlet (31), and heat exchanger outlet (32) all extend to the outside of the rear cover plate (2); the first ends of the two heat exchangers (21) are connected to the expansion valve (25) through the second heat exchanger conduit (15); the second ends of the two heat exchangers (21) are each connected to the two ports of the four-way reversing valve (26) through a first heat exchanger conduit (11); the third port of the four-way reversing valve (26) is connected to one end of the first oil separator (22) through the second oil separator conduit (16); the second end of the first oil separator (22) is connected to one end of the compressor (24) through the second compressor conduit (14); the second end of the compressor (24) is connected to one end of the second oil separator (23) through the first compressor conduit (13); and the second end of the second oil separator (23) is connected to the fourth port of the four-way reversing valve (26) through the first oil separator conduit (12).

2. The high-efficiency and energy-saving heat pump heating equipment according to claim 1, characterized in that: A drying filter (27) is also provided between the first ends of the two heat exchangers (21), and the drying filter (27) is connected to the expansion valve (25) through an intermediate conduit (17).

3. The high-efficiency and energy-saving heat pump heating equipment according to claim 2, characterized in that: A pressure gauge (28) is connected to each of the first oil separator conduit (12) and the second compressor conduit (14).

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