Compressor cooling device

Abstract

The utility model discloses a compressor cooling device which comprises a compressor, and a cooling module is arranged on the periphery of the compressor. The cooling module comprises a tank type heat exchanger, a first filter, a liquid storage device, a plate type heat exchanger, a temperature probe, an electronic expansion valve, a fin type heat exchanger, a second filter, a driving heat dissipation module, a capillary tube, a gas-liquid separator, a compressor and a four-way valve, and the compressor communicates with the plate type heat exchanger through a pipeline; and one end of the plate heat exchanger is communicated with one end of the liquid storage device through a pipeline. According to the utility model, the electronic expansion valve is used for adjusting the flow to accurately control the driving stability, and the stability is good. When the compressor is started and the driving temperature reaches a certain value, the electronic expansion valve is opened, then PID adjustment is conducted according to the set driving temperature target value, when the temperature is high, the water flow is increased, the cooling efficiency is improved, and when the temperature is low, the water flow is reduced, and device use is prevented from being affected by too low temperature.

Description

Technical Field

[0001] This utility model relates to the field of compressor cooling technology, specifically to a compressor cooling device. Background Technology

[0002] The compressor uses an air-source inverter unit for cooling. An air-source heat pump is an energy-saving device that uses high-grade energy to move heat from a low-grade heat source, air, to a high-grade heat source. It is a form of heat pump. As the name suggests, a heat pump is like a pump that can convert low-grade heat energy (such as the heat contained in air, soil, and water) that cannot be directly used into high-grade heat energy that can be used, thereby achieving the purpose of saving some high-grade energy (such as coal, gas, oil, electricity, etc.).

[0003] Cooling the compressor drive is crucial for air source inverter units. Currently, there are two main methods for cooling the drive on the market: 1. Installing the drive in the air duct of the finned heat exchanger. This method has poor cooling effect during refrigeration and requires proper sealing during defrosting to prevent moisture from entering the drive side; 2. Using refrigerant cooling, mainly using liquid cooling on the high-pressure side. The advantage of this method is that the machine temperature is relatively stable, but the cooling temperature is relatively high, and the cost is also high.

[0004] When existing compressor cooling devices are in use, impurities in the water can easily remain in the pipes, causing blockages. Furthermore, the high ambient temperature during cooling can easily lead to overheating of the drive, thus affecting the cooling capacity. Therefore, these devices do not meet the current requirements. To address this, we propose a compressor cooling device. Utility Model Content

[0005] The purpose of this utility model is to provide a compressor cooling device to solve the problems mentioned in the background art, such as impurities in the water easily remaining in the pipes and causing blockages, and overheating of the drive due to high ambient temperature during refrigeration, which affects the cooling capacity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compressor cooling device, comprising a compressor, with a cooling module surrounding the compressor. The cooling module includes a tank heat exchanger, a first filter, a liquid receiver, a plate heat exchanger, a temperature probe, an electronic expansion valve, a finned heat exchanger, a second filter, a drive cooling module, a capillary tube, a gas-liquid separator, the compressor, and a four-way valve. The compressor and the plate heat exchanger are connected by a pipe. One end of the plate heat exchanger is connected to one end of the liquid receiver via a pipe, and the other end of the liquid receiver is connected to the cold water inlet of the tank heat exchanger via a pipe. The other end of the heat exchanger is connected to two electronic expansion valves via a three-way pipe. One end of one of the electronic expansion valves is connected to a filter mechanism and a finned heat exchanger via a three-way pipe. The other end of the finned heat exchanger is connected to a four-way valve via a pipe. The other end of the filter mechanism is connected to one end of the drive heat dissipation module via a pipe. A capillary tube is movably installed on the other end of the drive heat dissipation module. The drive heat dissipation module is connected to one end of the gas-liquid separator via the capillary tube. The remaining three ports of the four-way valve are connected to the hot water port of the tank heat exchanger, the output end of the compressor, and the other end of the gas-liquid separator via pipes, respectively.

[0007] Preferably, a first filter is connected between the tank heat exchanger and the liquid receiver, a first filter is connected between the finned heat exchanger and the electronic expansion valve, and a third electronic expansion valve is connected between the finned heat exchanger and the second filter.

[0008] Preferably, a temperature probe is connected between the plate heat exchanger and the first electronic expansion valve; temperature probes are installed at both the cold water inlet and hot water inlet of the tank heat exchanger; a temperature probe is connected between the compressor and the four-way valve; a temperature probe is connected between the gas-liquid separator and the four-way valve; a high-pressure needle valve, a high-pressure sensor, and a pressure gauge are installed on the surface of the pipe connecting the compressor and the four-way valve; a low-pressure sensor and a needle valve are installed on the surface of the pipe connecting the gas-liquid separator and the four-way valve; and a pressure gauge is installed on the surface of the pipe connecting the gas-liquid separator and the compressor.

[0009] Preferably, the filtration mechanism includes a second filter, an inlet pipe, an electric push rod, a scraper, a triangular bevel, a filter screen, a collection box, and a partition. The top of the second filter is provided with an inlet pipe, and the third electronic expansion valve is connected to the inlet pipe through a pipe. The second filter has a filter screen inside, and a scraper is movably installed on the top surface of the filter screen. An electric push rod is provided on the outside of the second filter, and the output end of the electric push rod is fixedly connected to the surface of the scraper. A triangular bevel is provided on one side of the filter screen. A partition is fixedly installed inside the second filter, and a collection box is movably installed on the side of the partition near the triangular bevel. The bottom surface of the scraper is provided with multiple brushes.

[0010] Preferably, the filtration mechanism further includes a water outlet pipe, a support frame, a water collecting inclined plate, a filter screen support frame, and a triangular inclined groove. A water outlet pipe is provided on one side surface of the second filter near the bottom end. One end of the drive heat dissipation module is connected to the water outlet pipe through a pipe. A water collecting inclined plate is fixedly installed inside the second filter near the water outlet pipe. A support frame is fixedly installed on the outer surface of the second filter near the electric push rod. The electric push rod is bolted to the surface of the support frame. A triangular inclined groove is provided on the surface of the scraper. A filter screen support frame is fixedly installed on the inner wall surface of the second filter. The bottom surface of the filter screen is in contact with the top surface of the filter screen support frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses an electronic expansion valve to adjust the flow rate for precise and stable drive control, resulting in good stability. When the compressor starts, the electronic expansion valve opens when the drive temperature reaches a certain value. Then, PID control is performed according to the set drive temperature target value. If the temperature is too high, the water flow rate is increased to improve cooling efficiency; if the temperature is too low, the water flow rate is reduced to avoid the temperature being too low and affecting the use of the device.

[0013] 2. This utility model utilizes the cooperation of a second filter and a scraper. When the device is in use, water enters the second filter through the inlet pipe. The water is then filtered through the filter screen to remove impurities, preventing them from remaining in the pipes connecting the components and causing blockages. After the water passes through the filter screen, an electric push rod can be activated to drive the scraper out, causing the brush at the bottom of the scraper to brush the surface of the filter screen. This pushes the impurities onto the filter screen surface to the triangular bevel, where they fall into the collection box for collection. The collection box can then be removed from the second filter to remove the impurities, and the filtered water is then transported to the next component through the outlet pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the operation of the cooling module of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the second filter of this utility model;

[0016] Figure 3 This is a cross-sectional front view of the second filter of this utility model;

[0017] Figure 4 This is a top cross-sectional view of the second filter of this utility model.

[0018] In the diagram: 1. Tank heat exchanger; 2. First filter; 3. Liquid receiver; 4. Plate heat exchanger; 5. Temperature probe; 6. Electronic expansion valve; 7. Finned heat exchanger; 8. Second filter; 9. Drive cooling module; 10. Capillary tube; 11. Gas-liquid separator; 12. Compressor; 13. Four-way valve; 14. Inlet pipe; 15. Electric push rod; 16. Outlet pipe; 17. Support frame; 18. Scraper; 19. Triangular bevel; 20. Filter screen; 21. Collection box; 22. Baffle plate; 23. Water collection ramp; 24. Filter screen support frame; 25. Triangular ramp. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Please see Figures 1 to 4 This utility model provides an embodiment of a compressor cooling device, including a compressor 12. A cooling module is arranged around the compressor 12. The cooling module includes a tank heat exchanger 1, a first filter 2, a liquid receiver 3, a plate heat exchanger 4, a temperature probe 5, an electronic expansion valve 6, a finned heat exchanger 7, a second filter 8, a drive heat dissipation module 9, a capillary tube 10, a gas-liquid separator 11, the compressor 12, and a four-way valve 13. The compressor 12 is connected to the plate heat exchanger 4 through a pipe. One end of the plate heat exchanger 4 is connected to one end of the liquid receiver 3 through a pipe, and the other end of the liquid receiver 3 is connected to the cold water inlet of the tank heat exchanger 1 through a pipe. The other end of the heat exchanger 4 is connected to two electronic expansion valves 6 via a three-way pipe. One end of one of the electronic expansion valves 6 is connected to the filter mechanism and the finned heat exchanger 7 via a three-way pipe. The other end of the finned heat exchanger 7 is connected to a four-way valve 13 via a pipe. The other end of the filter mechanism is connected to one end of the drive heat dissipation module 9 via a pipe. The other end of the drive heat dissipation module 9 is movably equipped with a capillary tube 10. The drive heat dissipation module 9 is connected to one end of the gas-liquid separator 11 via the capillary tube 10. The remaining three ports of the four-way valve 13 are connected to the hot water port of the tank heat exchanger 1, the output end of the compressor 12, and the other end of the gas-liquid separator 11 via pipes, respectively.

[0021] A first filter 2 is connected between the tank heat exchanger 1 and the liquid receiver 3. A first filter 2 is connected between the finned heat exchanger 7 and the electronic expansion valve 6. A third electronic expansion valve 6 is connected between the finned heat exchanger 7 and the second filter 8.

[0022] A temperature probe 5 is connected between the plate heat exchanger 4 and the first electronic expansion valve 6. Temperature probes 5 are installed at both the cold water inlet and hot water inlet of the tank heat exchanger 1. A temperature probe 5 is connected between the compressor 12 and the four-way valve 13. A temperature probe 5 is connected between the gas-liquid separator 11 and the four-way valve 13. A high-pressure needle valve, a high-pressure sensor, and a pressure gauge are installed on the surface of the pipe connecting the compressor 12 and the four-way valve 13. A low-pressure sensor and a needle valve are installed on the surface of the pipe connecting the gas-liquid separator 11 and the four-way valve 13. A pressure gauge is installed on the surface of the pipe connecting the gas-liquid separator 11 and the compressor 12.

[0023] The flow rate is precisely controlled and the drive is stable by adjusting the electronic expansion valve 6, resulting in good stability. When the compressor 12 starts, the electronic expansion valve 6 opens when the drive temperature reaches a certain value. Then, PID control is performed according to the set drive temperature target value. If the temperature is high, the water flow rate is increased to improve cooling efficiency; if the temperature is low, the water flow rate is reduced to avoid the temperature being too low and affecting the use of the device.

[0024] The filtration mechanism includes a second filter 8, an inlet pipe 14, an electric push rod 15, a scraper 18, a triangular bevel 19, a filter screen 20, a collection box 21, and a partition 22. The top of the second filter 8 is provided with an inlet pipe 14, and a third electronic expansion valve 6 is connected to the inlet pipe 14 through a pipe. The inside of the second filter 8 is provided with a filter screen 20, and a scraper 18 is movably installed on the top surface of the filter screen 20. The outside of the second filter 8 is provided with an electric push rod 15, and the output end of the electric push rod 15 is fixedly connected to the surface of the scraper 18. A triangular bevel 19 is provided on one side of the filter screen 20. A partition 22 is fixedly installed inside the second filter 8, and a collection box 21 is movably installed on the side of the partition 22 near the triangular bevel 19. The bottom surface of the scraper 18 is provided with multiple brushes.

[0025] With the cooperation of the second filter 8 and the scraper 18, when the device is in use, when water passes through the second filter 8, it will enter the interior of the second filter 8 through the water inlet pipe 14. At this time, the water will be filtered through the filter screen 20 to filter out impurities in the water, so as to prevent impurities from remaining in the pipes connecting the various components and thus avoid water flow blockage.

[0026] The filtration mechanism also includes a water outlet pipe 16, a support frame 17, a water collecting inclined plate 23, a filter screen support frame 24, and a triangular inclined groove 25. The water outlet pipe 16 is provided on one side surface of the second filter 8 near the bottom. One end of the drive heat dissipation module 9 is connected to the water outlet pipe 16 through a pipe. The water collecting inclined plate 23 is fixedly installed inside the second filter 8 near the water outlet pipe 16. The support frame 17 is fixedly installed on the outer surface of the second filter 8 near the electric push rod 15. The electric push rod 15 is installed on the surface of the support frame 17 by bolts. The surface of the scraper 18 is provided with a triangular inclined groove 25. The filter screen support frame 24 is fixedly installed on the inner wall surface of the second filter 8. The bottom surface of the filter screen 20 is in contact with the top surface of the filter screen support frame 24.

[0027] After the water passes through the filter screen 20, the electric push rod 15 can be activated to drive the scraper 18 out, so that the brush at the bottom of the scraper 18 brushes the surface of the filter screen 20, thereby pushing the impurities on the surface of the filter screen 20 to the position of the triangular bevel 19 by the push of the scraper 18, so that the impurities fall into the inside of the collection box 21 for collection. Then the collection box 21 can be directly removed from the second filter 8 to remove the impurities, and the filtered water can be transported to the next component through the water outlet pipe 16.

[0028] During operation, the compressor cooling device uses the electronic expansion valve 6 to precisely control the flow rate for stable operation, resulting in good stability. When the compressor 12 starts, the electronic expansion valve 6 opens when the drive temperature reaches a certain value. Then, PID control is performed according to the set drive temperature target value. If the temperature is too high, the water flow rate is increased to improve cooling efficiency; if the temperature is too low, the water flow rate is decreased to prevent the temperature from being too low and affecting the device's operation.

[0029] With the cooperation of the second filter 8 and the scraper 18, when the device is in use, when water passes through the second filter 8, it enters the interior of the second filter 8 through the water inlet pipe 14. At this time, the water will be filtered through the filter screen 20 to remove impurities from the water, preventing impurities from remaining in the pipes connecting the various components, thereby avoiding water flow blockage. After the water passes through the filter screen 20, the electric push rod 15 can be activated to drive the scraper 18 to push out, so that the brush at the bottom of the scraper 18 brushes the surface of the filter screen 20, thereby pushing the impurities on the surface of the filter screen 20 to the position of the triangular bevel 19 by the push of the scraper 18, so that the impurities fall into the interior of the collection box 21 for collection. Then the collection box 21 can be directly removed from the second filter 8 to remove the impurities, and the filtered water can be transported to the next component through the water outlet pipe 16.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A compressor cooling device, comprising a compressor (12), characterized in that: The compressor (12) is surrounded by a cooling module, which includes a tank heat exchanger (1), a first filter (2), a liquid receiver (3), a plate heat exchanger (4), a temperature probe (5), an electronic expansion valve (6), a finned heat exchanger (7), a second filter (8), a drive heat dissipation module (9), a capillary tube (10), a gas-liquid separator (11), the compressor (12), and a four-way valve (13). The compressor (12) and the plate heat exchanger (4) are connected by a pipe. One end of the plate heat exchanger (4) is connected to one end of the liquid receiver (3) by a pipe. The other end of the liquid receiver (3) is connected to the cold water inlet of the tank heat exchanger (1) by a pipe. The other end of the plate heat exchanger (4) is connected to the three-way valve (13). The passage connects two electronic expansion valves (6), one end of which is connected to a filter mechanism and a finned heat exchanger (7) via a three-way pipe. The other end of the finned heat exchanger (7) is connected to a four-way valve (13) via a pipe. The other end of the filter mechanism is connected to one end of a drive heat dissipation module (9) via a pipe. A capillary tube (10) is movably installed on the other end of the drive heat dissipation module (9). The drive heat dissipation module (9) is connected to one end of a gas-liquid separator (11) via the capillary tube (10). The remaining three ports of the four-way valve (13) are connected to the hot water port of the tank heat exchanger (1), the output end of the compressor (12), and the other end of the gas-liquid separator (11) via pipes.

2. The compressor cooling device according to claim 1, characterized in that: The tank heat exchanger (1) and the liquid storage tank (3) are interconnected by a first filter (2), the finned heat exchanger (7) and the electronic expansion valve (6) are interconnected by a first filter (2), and the finned heat exchanger (7) and the second filter (8) are interconnected by a third electronic expansion valve (6).

3. A compressor cooling device according to claim 1, characterized in that: A temperature probe (5) is connected between the plate heat exchanger (4) and the first electronic expansion valve (6). Temperature probes (5) are provided at both the cold water inlet and the hot water inlet of the tank heat exchanger (1). A temperature probe (5) is connected between the compressor (12) and the four-way valve (13). A temperature probe (5) is connected between the gas-liquid separator (11) and the four-way valve (13). A high-pressure needle valve, a high-pressure sensor, and a pressure gauge are provided on the surface of the pipe connecting the compressor (12) and the four-way valve (13). A low-pressure sensor and a needle valve are provided on the surface of the pipe connecting the gas-liquid separator (11) and the four-way valve (13). A pressure gauge is provided on the surface of the pipe connecting the gas-liquid separator (11) and the compressor (12).

4. A compressor cooling device according to claim 1, characterized in that: The filtration mechanism includes a second filter (8), an inlet pipe (14), an electric push rod (15), a scraper (18), a triangular bevel (19), a filter screen (20), a collection box (21), and a partition (22). The top of the second filter (8) is provided with an inlet pipe (14). The third electronic expansion valve (6) is connected to the inlet pipe (14) through a pipe. The inside of the second filter (8) is provided with a filter screen (20). The top surface of the filter screen (20) is movably mounted with a scraper (18). The outside of the second filter (8) is provided with an electric push rod (15). The output end of the electric push rod (15) is fixedly connected to the surface of the scraper (18). One side of the filter screen (20) is provided with a triangular bevel (19). The inside of the second filter (8) is fixedly mounted with a partition (22). The side of the partition (22) near the triangular bevel (19) is movably mounted with a collection box (21). The bottom surface of the scraper (18) is provided with multiple brushes.

5. A compressor cooling device according to claim 4, characterized in that: The filtration mechanism also includes a water outlet pipe (16), a support frame (17), a water collection inclined plate (23), a filter screen support frame (24), and a triangular inclined groove (25). The water outlet pipe (16) is provided on one side surface of the second filter (8) near the bottom. One end of the drive heat dissipation module (9) is connected to the water outlet pipe (16) through a pipe. The water collection inclined plate (23) is fixedly installed inside the second filter (8) near the water outlet pipe (16). The support frame (17) is fixedly installed on the outer surface of the second filter (8) near the electric push rod (15). The electric push rod (15) is installed on the surface of the support frame (17) by bolts. The surface of the scraper (18) is provided with a triangular inclined groove (25). The filter screen support frame (24) is fixedly installed on the inner wall surface of the second filter (8). The bottom surface of the filter screen (20) is in contact with the top surface of the filter screen support frame (24).

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