Totally-closed low-noise heat pump compression and condensation system

Abstract

The utility model relates to the technical field of heat pump water heaters, and discloses a totally-closed low-noise heat pump compression and condensation system which comprises a heat exchange water tank, a condensation heat exchanger and a compressor, the condensation heat exchanger comprises a shell, a spiral partition plate and a spiral heat exchange pipe, and a heat preservation shell wraps the shell of the condensation heat exchanger. The shell is a cylindrical body with an annular section, the cylindrical body is provided with a containing cavity, an inner ring wall and an outer ring wall from inside to outside, a cavity is formed between the inner ring wall and the outer ring wall, a spiral partition plate is spirally arranged in the cavity in the circumferential direction, and spiral spaces of the spiral heat exchange tube are formed through separation; the compressor is arranged in the accommodating cavity; according to the design, heat generated by operation of the compressor is effectively utilized to heat hot water, total recovery of waste heat is achieved, effective noise isolation and absorption are conducted on the compressor through water circulation, and the use comfort of a user is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pump water heaters, in particular to a fully enclosed low-noise heat pump compression condensing system. Background Art

[0002] With the improvement of people's living standards and the increase in demand for comfortable hot water, heat pump water heaters have been widely used in my country in recent years due to their low power consumption, stable water output and water-electricity isolation technology.

[0003] In existing circulating heating heat pump water heaters, although energy efficiency and comfort have been improved, there are still problems such as high compressor operating noise, waste of waste heat and large size of heat exchange tank. In particular, household heat pump water heaters have the problem of high operating noise. In terms of research and development, various silencers and vibration reduction structures need to be added, and the design and material costs are high. In terms of after-sales complaints, manpower and material resources are also required, which has a significant impact on user experience and energy efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a fully enclosed low-noise heat pump compression condensing system to solve the problems of high compressor running noise, waste of waste heat and large volume of heat exchange water tank proposed in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A fully enclosed low-noise heat pump compression condensing system includes a heat exchange water tank;

[0007] The heat-insulating shell is a protective layer of the water exchange tank;

[0008] A condensing heat exchanger comprising a shell, a spiral baffle, and a spiral heat exchange tube. The heat-insulating outer shell covers the shell of the condensing heat exchanger. The shell is a cylindrical body with an annular cross-section. The cylindrical body has, from the inside out, a receiving cavity, an inner annular wall, and an outer annular wall. A cavity is formed between the inner and outer annular walls. A spiral baffle is provided circumferentially within the cavity to separate the spiral heat exchange tube into a spiral space.

[0009] The compressor is arranged in the accommodating cavity; the condensing heat exchanger absorbs the heat dissipation and operating noise of the compressor; the spiral heat exchange tube and the spiral baffle are used to transfer the exhaust heat of the compressor to the water, effectively increasing the heat exchange area and promoting the heat exchange efficiency between the refrigerant and the heat medium.

[0010] As an optimal technical solution of the present invention, the condensing heat exchanger is also provided with a refrigerant inlet and a refrigerant outlet. An exhaust outlet is provided on the top of the compressor. The refrigerant inlet is connected to the exhaust outlet. The refrigerant enters the interior of the condensing heat exchanger from the refrigerant inlet through the exhaust outlet of the compressor, flows through the spiral space formed by the spiral heat exchange tube and the spiral partition for heat exchange, and is finally discharged from the refrigerant outlet.

[0011] As a preferred technical solution of the present invention, a return air inlet is provided on the top of the compressor so that the compressor can inhale the gas after condensation treatment and realize the circulation and reflux of the gas.

[0012] Furthermore, a shock-absorbing chassis is installed at the bottom of the compressor to reduce vibration generated when the compressor is working.

[0013] As an optimal technical solution of the present invention, a cold water inlet and a hot water outlet are provided on the outer wall of the heat exchange water tank, the cold water inlet is connected to the cold water supply pipe, and the hot water outlet is connected to the user's hot water supply pipe.

[0014] As a preferred technical solution of the present invention, the shell is made of hard thermal insulation material and is used for thermal insulation and skeleton support of the water exchange water tank.

[0015] As a preferred technical solution of the present invention, it also includes an electric control box, which is arranged above the compressor and in the accommodating cavity, and integrates a circuit board, a relay and a controller.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By placing both the condensing heat exchanger and the compressor inside the water exchange tank, and the condensing heat exchanger tightly wrapping the compressor in a circular ring structure to form a relatively closed barrier space, the noise generated by the compressor can be significantly blocked and attenuated from propagating outward; especially when the condenser is filled with water, the absorption and reflection of sound by the water layer further enhances this blocking effect, achieving low-noise operation and thus achieving a noise reduction effect.

[0018] 2. The condensing heat exchanger utilizes spiral baffles arranged circumferentially to separate the spiral heat exchange tubes into spiral spaces, significantly increasing the contact area between the refrigerant and the water, thereby promoting efficient heat transfer. This design allows the high-temperature, high-pressure refrigerant gas generated during compressor exhaust to quickly transfer heat to the water in the heat exchange water tank, effectively reducing the refrigerant temperature while also efficiently recovering and utilizing waste heat. Compared to traditional systems where waste heat is directly discharged into the atmosphere, this design significantly improves energy efficiency.

[0019] 3. The condensing heat exchanger and compressor are integrated into the water exchange tank, achieving a compact design, reducing floor space and installation costs. Furthermore, the shock-absorbing chassis installed at the bottom of the compressor effectively reduces vibration and noise transmission during operation, improving system stability and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the structural diagram of the heat pump compression condensation system of the utility model;

[0021] Figure 2 This is a schematic diagram of the heat pump compression condensation system of the utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the condensing heat exchanger of the utility model;

[0023] Figure 4 This is an exploded diagram of the heat pump compression condensation system of the utility model;

[0024] In the figure: 1-heat water exchange tank, 2-compressor, 3-condensing heat exchanger, 4-shock absorption chassis, 5-electric control box, 6-insulation shell, 7-hot water outlet, 8-cold water inlet, 9-condenser refrigerant inlet, 10-condenser refrigerant outlet, 11-spiral heat exchange tube, 12-spiral partition, 13-return air inlet, 14-hot water supply pipe, 15-cold water supply pipe, 16-shell, 17-accommodation chamber, 18-spiral space, 19-exhaust outlet. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1-4 As shown, a fully enclosed low-noise heat pump compression condensing system includes a heat exchange water tank 1;

[0027] The heat-insulating shell 6 is a protective layer for the water exchange tank 1;

[0028] The condensing heat exchanger 3 includes a shell 16, a spiral baffle 12, and a spiral heat exchange tube 11. The thermal insulation shell 6 covers the shell 16 of the condensing heat exchanger. The shell 16 is a cylindrical body with an annular cross-section. The cylindrical body has an accommodating cavity 17, an inner annular wall, and an outer annular wall from the inside out. A cavity is formed between the inner and outer annular walls. The spiral baffle 12 is spirally provided in the cavity in a circumferential direction, dividing the cavity into a spiral space 18 for the spiral heat exchange tube 11.

[0029] The compressor 2 is arranged in the accommodating chamber 17; the condensing heat exchanger 3 absorbs the heat dissipation and operating noise of the compressor 2; the spiral heat exchange tube 11 and the spiral baffle 12 are used to transfer the exhaust heat of the compressor 2 to the water, effectively increasing the heat exchange area and promoting the heat exchange efficiency between the refrigerant and the heat medium.

[0030] As a preferred implementation scheme of this embodiment, the condensing heat exchanger 3 is also provided with a refrigerant inlet 9 and a refrigerant outlet 10. The top of the compressor 2 is provided with an exhaust outlet 19. The refrigerant inlet 10 is connected to the exhaust outlet 19. The refrigerant enters the condensing heat exchanger 3 from the refrigerant inlet 9 through the exhaust outlet 19 of the compressor 2, flows through the flow channel formed by the spiral heat exchange tube 11 and the spiral partition 12 for heat exchange, and is finally discharged from the refrigerant outlet 10.

[0031] As a preferred implementation of this embodiment, a return air inlet 13 is provided on the top of the compressor 2 to facilitate the compressor 2 to inhale the gas after the condensation process and realize the circulation and reflux of the gas.

[0032] Furthermore, a shock-absorbing chassis 4 is installed at the bottom of the compressor 2 to reduce vibration generated when the compressor 2 is working.

[0033] As a preferred implementation of this embodiment, a cold water inlet 8 and a hot water outlet 7 are provided on the outer wall of the heat exchange water tank 1 . The cold water inlet 8 is connected to a cold water supply pipe 15 , and the hot water outlet 7 is connected to a user's hot water supply pipe 14 .

[0034] As a preferred implementation of this embodiment, the heat-insulating shell 6 is made of hard heat-insulating material and is used for heat insulation and skeleton support of the water exchange water tank 1.

[0035] As a preferred implementation of this embodiment, it further includes an electric control box 5, which is arranged above the compressor 2 and in the accommodating cavity 17. The electric control box 5 integrates a circuit board, a relay and a controller.

[0036] The working process of this embodiment:

[0037] When the system receives the start signal, the circuit boards, relays, and controller within the electrical control box 5 begin operating, driving the compressor 2 to start. Once compressor 2 starts operating, it draws in low-pressure, low-temperature refrigerant gas and converts it into high-pressure, high-temperature gas through an internal compression process. The high-temperature, high-pressure refrigerant gas then exits through the compressor 2's return air inlet at the top of the compressor 2 and enters the condensing heat exchanger 3. Within the complex flow path formed by the spiral heat exchange tubes 11 and spiral baffles 12, it undergoes heat exchange with the water in the water exchange tank 1, effectively recovering the heat generated during compressor 2's operation and achieving full waste heat recovery from the compressor 2. During this process, the condensing heat exchanger 3 not only serves as a core heat exchange component but also, through its annular enclosure design, forms a relatively enclosed barrier space tightly surrounding the compressor 2, significantly blocking and attenuating the outward transmission of noise generated by the compressor 2. In particular, when the condensing heat exchanger 3 is filled with water, the absorption and reflection of sound by the water layer further enhances this barrier effect, achieving a noise reduction effect.

[0038] Inside the condensing heat exchanger 3, high-temperature and high-pressure refrigerant gas flows in the spiral heat exchange tube 11. At the same time, the cold water in the water exchange tank 1 enters the water exchange tank 1 through the cold water inlet 8 to prepare for the heat exchange process. The spiral heat exchange tube 11 and the spiral baffles 12 arranged in parallel together form a complex flow channel. In the flow channel, the refrigerant gas gradually releases heat to the surrounding cold water. As the heat continues to transfer, the refrigerant gas gradually cools down and condenses into a high-pressure liquid refrigerant. Correspondingly, the water temperature in the water exchange tank 1 gradually increases during this process, completing the transition from cold water to hot water. After sufficient heat exchange inside the condensing heat exchanger 3, the liquid refrigerant is discharged from the refrigerant outlet 10 and enters the next cycle stage of the system.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully enclosed low-noise heat pump compression condensing system, comprising a heat exchange water tank (1), characterized in that include, A heat-insulating outer shell (6) is a protective layer for the water exchange tank (1); A condensing heat exchanger (3) comprises a shell (16), a spiral partition (12) and a spiral heat exchange tube (11); the heat-insulating outer shell (6) covers the shell (16) of the condensing heat exchanger; the shell (16) is a cylindrical body with an annular cross-section; the cylindrical body has a receiving cavity (17), an inner ring wall and an outer ring wall from the inside to the outside; a cavity is formed between the inner and outer ring walls; a spiral partition (12) is provided in a circumferential direction in the cavity to separate the spiral space (18) of the spiral heat exchange tube (11); The compressor (2) is arranged in the accommodating chamber (17).

2. The fully enclosed low-noise heat pump compression condensing system according to claim 1 is characterized in that: The condensing heat exchanger (3) is further provided with a refrigerant inlet (9) and a refrigerant outlet (10). An exhaust outlet (19) is provided at the top of the compressor. The refrigerant inlet is connected to the exhaust outlet. The refrigerant enters the interior of the condensing heat exchanger (3) from the refrigerant inlet (9) through the exhaust outlet of the compressor, flows through the spiral space formed by the spiral heat exchange tube (11) and the spiral partition (12), performs heat exchange, and is finally discharged from the refrigerant outlet (10).

3. The fully enclosed low-noise heat pump compression condensation system according to claim 1 is characterized in that: The top of the compressor (2) is also provided with an air return inlet (13).

4. The fully enclosed low-noise heat pump compression condensing system according to claim 3 is characterized in that: A shock-absorbing chassis (4) is installed at the bottom of the compressor (2).

5. The fully enclosed low-noise heat pump compression condensing system according to claim 1 is characterized in that: The shell is provided with a cold water inlet (8) and a hot water outlet (7). The cold water inlet (8) extends out of the shell to connect to a cold water supply pipe (15), and the hot water outlet (7) extends out of the shell to connect to a user's hot water supply pipe (14).

6. The fully enclosed low-noise heat pump compression condensation system according to claim 1 is characterized in that: The shell is made of hard heat-insulating material.

7. The fully enclosed low-noise heat pump compression condensing system according to claim 1 is characterized in that: It also includes an electric control box (5), which is arranged above the compressor and in the accommodating cavity (17), and the electric control box (5) integrates a circuit board, a relay, and a controller.

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