Compressor cavity waste heat recycling system
By designing a waste heat recovery system for the compressor cavity in the air conditioning system, the heat from the compressor cavity is transferred to the water system cavity, solving the problem of water pipe freezing and achieving energy saving, consumption reduction, and extended water pipe life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-03-03
AI Technical Summary
In cold climates, the water supply pipes, drainage pipes, and condensate drain pipes of the air conditioning system may freeze, leading to pipe rupture. Existing technologies use heating elements and insulation to address this issue, but this increases costs and power requirements and reduces system energy efficiency.
Design a compressor cavity waste heat recovery and utilization system. The heat of the compressor cavity is transferred to the water system cavity through a waste heat recovery fan. Combined with a thermostat to control the heat transfer, the reliance on water pipe insulation and heating belt is reduced.
This reduces the insulation cost of water pipe components and the power loss of the unit, improves the energy efficiency ratio of the air conditioning system, and extends the service life of the water pipes.
Smart Images
Figure CN223965571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air conditioning system technology, specifically to a compressor cavity waste heat recovery and utilization system. Background Technology
[0002] In enclosure-type air conditioning systems operating in cold climates, the water supply pipes, drain pipes, and condensate drain pipes may freeze due to low temperatures. To address this issue, the commonly used method is to wrap heating tape around these pipes and insulate them with insulating cotton to maintain the temperature inside the pipes and prevent the water inside from freezing and expanding, which could cause the pipes to rupture.
[0003] However, installing heating belts and insulation increases material and labor costs; in addition, in order to continuously provide heat to prevent the pipes from freezing, additional electricity must be consumed, which not only increases the power demand of the unit but also reduces the overall energy efficiency of the system; secondly, prolonged exposure to the high-temperature environment generated by the heating belt will accelerate the aging process of the pipe materials, reduce their mechanical strength, shorten their service life, and increase maintenance frequency and costs. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a compressor cavity waste heat recovery and utilization system.
[0005] The objective of this utility model is achieved through the following technical solution: a compressor cavity waste heat recovery and utilization system, comprising a housing; the housing is provided with a compression cavity, a water system cavity, and an air supply cavity; a first partition is provided between the water system cavity and the compression cavity; a second partition is provided between the water system cavity and the air supply cavity;
[0006] The first partition is equipped with a waste heat recovery fan; the waste heat recovery fan is connected to both the compression chamber and the water system chamber.
[0007] The compression chamber is equipped with a compressor; the water system chamber is equipped with a water pipe assembly;
[0008] The water system cavity is equipped with a temperature controller; the temperature controller is electrically connected to the waste heat recovery fan.
[0009] The present invention is further configured such that a heating belt is wound around the surface of the compressor.
[0010] The present invention is further configured such that a frequency converter or an active filter is provided inside the compression cavity; the frequency converter or active filter is provided with a cooling fan.
[0011] The present invention is further configured such that the water system cavity is provided with a drain outlet; the water pipe assembly includes a drain pipe disposed within the water system cavity; and the drain pipe is connected to the drain outlet.
[0012] The present invention is further configured such that the housing is provided with a water tank and a sprayer; the water pipe assembly also includes a water supply pipe disposed in the water system cavity; the water system cavity is provided with a water supply port; one end of the water supply pipe is connected to the water tank; the other end of the water supply pipe is connected to the water supply port; one end of the drain pipe is connected to the water tank; the other end of the drain pipe is connected to the drain outlet.
[0013] The present invention is further configured such that the water system cavity is equipped with a water pump; the water pipe assembly also includes an inlet pipe and an outlet pipe both disposed within the water system cavity; the two ends of the inlet pipe are respectively connected to the water pump and the water tank; the two ends of the outlet pipe are respectively connected to the water pump and the sprayer.
[0014] The present invention is further configured such that the housing is provided with an evaporator; the water pipe assembly also includes a condensate pipe disposed in the water system cavity; one end of the condensate pipe is disposed at the evaporator; and the other end of the condensate pipe is connected to the drain outlet.
[0015] The present invention is further provided that a water trap is provided in the middle of the condensate pipe.
[0016] The present invention is further configured such that the waste heat recovery fan is a fixed-frequency axial flow fan.
[0017] The beneficial effects of this utility model are as follows: By utilizing the waste heat of the compression chamber to the water system chamber, this utility model can not only reduce waste heat emissions and prevent environmental pollution, but also save on the cost of water pipe component insulation, reduce unit power loss, and improve the energy efficiency ratio of the air conditioning unit. Attached Figure Description
[0018] The utility model will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present utility model. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] The components are as follows: 1. Housing; 11. First partition; 12. Second partition; 21. Compression chamber; 22. Water system chamber; 23. Air supply chamber; 31. Waste heat recovery fan; 32. Thermostat; 41. Compressor; 42. Heating belt; 43. Frequency converter or active filter; 44. Cooling fan; 51. Drain outlet; 52. Drain pipe; 61. Water tank; 62. Sprayer; 63. Water pump; 64. Inlet pipe; 65. Outlet pipe; 71. Water supply pipe; 72. Water supply port; 8. Evaporator; 81. Condensate pipe; 82. Water trap. Detailed Implementation
[0021] The present invention will be further described in conjunction with the following embodiments.
[0022] Depend on Figure 1 As can be seen, the compressor cavity waste heat recovery and utilization system described in this embodiment includes a housing 1; the housing 1 is provided with a compression cavity 21, a water system cavity 22 and an air supply cavity 23; a first partition 11 is provided between the water system cavity 22 and the compression cavity 21; a second partition 12 is provided between the water system cavity 22 and the air supply cavity 23;
[0023] The first partition 11 is equipped with a waste heat recovery fan 31; the waste heat recovery fan 31 is connected to the compression chamber 21 and the water system chamber 22 respectively;
[0024] The compression chamber 21 is equipped with a compressor 41; the water system chamber 22 is equipped with a water pipe assembly;
[0025] The water system cavity 22 is equipped with a thermostat 32; the thermostat 32 is electrically connected to the waste heat recovery fan 31.
[0026] Specifically, the compressor cavity waste heat recovery system described in this embodiment uses a thermostat 32 and a waste heat recovery fan 31 for linkage control. When the thermostat 32 detects that the temperature of the water system cavity 22 is lower than 2°C, it triggers the waste heat recovery fan 31 to turn on, thereby drawing the heat in the compressor cavity 21 to the water system cavity 22. When the thermostat 32 detects that the temperature of the water system cavity 22 is higher than 5°C, it triggers the waste heat recovery fan 31 to turn off.
[0027] Meanwhile, by integrating all water pipe components into the water system cavity 22 and utilizing the heat from the compression cavity 21, the insulation cotton and heating tape of the water pipe components can be eliminated, reducing the overall cost and increasing the lifespan of each water pipe component.
[0028] In this embodiment, the compression chamber 21, the water system chamber 22 and the air supply chamber 23 are isolated from each other by the first partition 11 and the second partition 12, which reduces the back-and-forth pipe insertion of the device between the chambers and can prevent water from leaking into the compression chamber 21 after the water pipe assembly of the water system chamber 22 is broken.
[0029] In addition, utilizing the waste heat of the compression chamber 21 to the water system chamber 22 can not only reduce waste heat emissions and prevent environmental pollution, but also save on the cost of water pipe component insulation, reduce unit power loss, and improve the energy efficiency ratio of the air conditioning unit.
[0030] It not only prevents water pipe components from freezing and cracking, but also slows down the aging process and increases their service life.
[0031] This embodiment describes a compressor cavity waste heat recovery system, wherein the surface of the compressor 41 is wrapped with a heating belt 42. Specifically, when the compressor 41 is turned on, the heating belt 42 is turned off; when the compressor 41 is turned off, the heating belt 42 is turned on to heat the compressor 41 and increase its internal pressure, preventing the refrigerant in the evaporator 8 from migrating to the compressor 41, and at the same time evaporating the liquid refrigerant entering the compressor, preventing liquid start-up and liquid slugging.
[0032] When the outdoor ambient temperature is below 14℃, the compressor 41 does not need to be turned on. The cooling capacity of the computer room can be met by heat exchange through the heat exchange core. After the return air of the computer room exchanges heat with the outdoor fresh air through the heat exchange core, it is cooled down to a minimum of about 27℃. After passing through the evaporator 8, it is sent to the computer room from the air supply cavity. Therefore, the surface temperature of the evaporator 8 is at least 27℃ at this time. Its refrigerant saturation temperature = ambient temperature - (10~20℃). Taking the middle value of 15℃, the refrigerant saturation temperature = 27℃ - 15℃, which is about 12℃. When the compressor 41 is stopped, since the compressor specification generally requires that the oil temperature in the oil sump must be maintained at more than 10℃ higher than the refrigerant saturation temperature on the low-pressure side, the compressor 41 needs a temperature of more than 22℃ to prevent refrigerant migration in the evaporator 8.
[0033] Therefore, after the compressor 41 stops, the heating belt 42 of the compressor 41 will turn on, and the surface temperature will reach about 80°C. About 60°C of heat is excess. After deducting the heat loss due to heat conduction from the first partition 11 and the wall of the compression chamber 21, about 40°C of heat can be used. The water system chamber 22 and the compression chamber 21 are adjacent, so this excess heat can be used in the water system chamber 22. Therefore, through the above settings, there is enough heat to be provided to the water system chamber 22 when the compressor 41 is working or stopping.
[0034] This embodiment describes a compressor cavity waste heat recovery system, in which a frequency converter or active filter 43 is installed inside the compressor cavity 21; the frequency converter or active filter 43 is equipped with a cooling fan 44. Specifically, during system operation, the frequency converter or active filter 43 generates a certain amount of heat, which is dissipated by the cooling fan 44, providing sufficient heat to the water system cavity 22.
[0035] The compressor cavity waste heat recovery and utilization system described in this embodiment includes a water system cavity 22 with a drain outlet 51; the water pipe assembly includes a drain pipe 52 disposed in the water system cavity 22; the drain pipe 52 is connected to the drain outlet 51.
[0036] Specifically, in this embodiment, by placing the drain pipe 52 inside the water system cavity 22, it is not necessary to add insulation to the surface of the drain pipe 52, thereby reducing the power loss of the unit, improving the energy efficiency ratio of the air conditioning unit, and extending the life of the drain pipe 52.
[0037] The compressor cavity waste heat recovery and utilization system described in this embodiment includes a housing 1 with a water tank 61 and a sprayer 62; the water pipe assembly also includes a water supply pipe 71 disposed in a water system cavity 22; the water system cavity 22 is provided with a water inlet 72; one end of the water supply pipe 71 is connected to the water tank 61; the other end of the water supply pipe 71 is connected to the water inlet 72; one end of the drain pipe 52 is connected to the water tank 61; the other end of the drain pipe 52 is connected to the drain outlet 51.
[0038] Specifically, in this embodiment, by placing the water supply pipe 71 inside the water system cavity 22, it is not necessary to add insulation to the surface of the water supply pipe 71, thereby reducing unit power loss, improving the energy efficiency ratio of the air conditioning unit, and extending the lifespan of the water supply pipe 71. The water supply pipe 71 can replenish water to the water tank 61; the drain pipe 52 can drain water from the water tank 61.
[0039] The waste heat recovery system for a compressor cavity described in this embodiment includes a water system cavity 22 equipped with a water pump 63; the water pipe assembly also includes an inlet pipe 64 and an outlet pipe 65 both disposed within the water system cavity 22; the two ends of the inlet pipe 64 are respectively connected to the water pump 63 and the water tank 61; the two ends of the outlet pipe 65 are respectively connected to the water pump 63 and the sprayer 62.
[0040] Specifically, in this embodiment, by setting the inlet pipe 64 and the outlet pipe 65 inside the water system cavity 22, it is not necessary to add insulation components to the surface of the inlet pipe 64 and the outlet pipe 65, thereby reducing the power loss of the unit, improving the energy efficiency ratio of the air conditioning unit, and extending the lifespan of the inlet pipe 64 and the outlet pipe 65; a water circulation system is formed between the water tank 61, the water pump 63, the inlet pipe 64, the outlet pipe 65, and the sprayer 62, which can perform spray heat dissipation.
[0041] This embodiment describes a compressor cavity waste heat recovery system. The housing 1 is equipped with an evaporator 8. The water pipe assembly also includes a condensate pipe 81 disposed within a water system cavity 22. One end of the condensate pipe 81 is located at the evaporator 8, and the other end is connected to a drain outlet 51. Specifically, by placing the condensate pipe 81 within the water system cavity 22, this embodiment eliminates the need for additional insulation on the surface of the condensate pipe 81, reduces unit power loss, improves the energy efficiency ratio of the air conditioning unit, extends the lifespan of the condensate pipe 81, and allows the condensate pipe 81 to drain the condensate produced by the evaporator 8.
[0042] In this embodiment, a compressor cavity waste heat recovery system is described, wherein a water trap 82 is provided in the middle of the condensate pipe 81. By setting the water trap 82, air, odors, or other pollutants can be prevented from flowing back into the indoor unit of the air conditioner through the condensate pipe 81. Because the chamber where the evaporator 8 is located is under negative pressure when it is working, the atmospheric pressure at one end of the condensate pipe 81 relative to the drain outlet 51 is negative. The water trap 82 can generate gravity to counteract the resistance of the negative pressure to drainage.
[0043] The waste heat recovery system for a compressor cavity described in this embodiment uses a fixed-frequency axial flow fan 31. This configuration saves costs, and the rotational speed of the fixed-frequency axial flow fan remains essentially constant.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A compressor cavity waste heat recovery system, characterized by: The utility model provides a kind of air conditioner, including box (1);The box (1) is equipped with compression cavity (21), water system cavity (22) and air supply cavity (23);First baffle (11) is equipped between the water system cavity (22) and compression cavity (21);Second baffle (12) is equipped between the water system cavity (22) and air supply cavity (23); The first baffle (11) is equipped with waste heat recovery fan (31);Waste heat recovery fan (31) is communicated with compression cavity (21) and water system cavity (22) respectively; The compression cavity (21) is equipped with compressor (41);The water system cavity (22) is equipped with water pipe assembly; The water system cavity (22) is equipped with temperature controller (32);Temperature controller (32) and waste heat recovery fan (31) are electrically connected.
2. The system of claim 1, wherein: The surface of the compressor (41) is wound with a heating belt (42).
3. The system of claim 1, wherein: The compression cavity (21) is provided with a frequency converter or an active filter (43), and the frequency converter or the active filter (43) is provided with a cooling fan (44).
4. The system of claim 1, wherein: The water system cavity (22) is provided with a drain port (51), and the water pipe assembly comprises a drain pipe (52) arranged in the water system cavity (22); the drain pipe (52) is communicated with the drain port (51).
5. The system of claim 4, wherein: The box (1) is provided with a water tank (61) and a sprayer (62), the water pipe assembly further comprises a water replenishing pipe (71) arranged in the water system cavity (22), the water system cavity (22) is provided with a water replenishing port (72), one end of the water replenishing pipe (71) is communicated with the water tank (61), the other end of the water replenishing pipe (71) is communicated with the water replenishing port (72), one end of the drain pipe (52) is communicated with the water tank (61), and the other end of the drain pipe (52) is communicated with the drain port (51).
6. The system of claim 5, wherein: The water system cavity (22) is provided with a water pump (63), and the water pipe assembly further comprises a water inlet pipe (64) and a water outlet pipe (65) both arranged in the water system cavity (22), both ends of the water inlet pipe (64) are respectively communicated with the water pump (63) and the water tank (61), and both ends of the water outlet pipe (65) are respectively communicated with the water pump (63) and the sprayer (62).
7. The system of claim 4, wherein: The box (1) is provided with an evaporator (8), the water pipe assembly further comprises a condensate water pipe (81) arranged in the water system cavity (22), one end of the condensate water pipe (81) is arranged at the evaporator (8), and the other end of the condensate water pipe (81) is communicated with the drain port (51).
8. The system of claim 7, wherein: A water trap (82) is arranged in the middle of the condensate water pipe (81).
9. The system of claim 1, wherein: The waste heat recovery fan (31) is a fixed-frequency axial fan.