Device for efficient removal of coolant impurities

Abstract

The utility model discloses a kind of devices for efficiently removing coolant impurities, including coolant tank, circulating pump, closed diaphragm filter press, recovery tank and recovery pump, coolant tank upper portion is provided with coolant tank liquid inlet pipeline and coolant tank liquid return pipeline, coolant tank bottom is provided with coolant tank liquid outlet pipeline, coolant tank liquid outlet pipeline is connected with circulating pump, circulating pump is connected with closed diaphragm filter press by filter press liquid inlet pipeline, closed diaphragm filter press is connected with recovery tank by filter press liquid outlet pipeline, recovery tank is connected with recovery pump by recovery pump liquid inlet pipeline, recovery pump is connected with coolant tank by coolant tank liquid return pipeline.Compared with prior art, the utility model is provided with the device bypass for efficiently removing coolant impurities on main process flow, the device is easy to operate, impurity separation efficiency is high, secondary pollution is not generated, can be according to coolant water quality control bypass input or cut out operation, improve coolant water quality, improve heat exchange efficiency, reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of refrigerant operation technology in chemical production, and in particular to a device for efficiently removing impurities from refrigerants. Background Technology

[0002] Refrigerants play a crucial role in the production of silicone. Certain reactions and processes in silicone production require operation within specific temperature ranges. The refrigerant exchanges heat with the process fluid through a heat exchanger, removing heat and thus controlling the temperature within the required range. This helps ensure reaction stability and product quality. During process operation, impurities in the refrigerant gradually increase, causing a decrease in heat exchange capacity and making it unable to meet the process heat exchange requirements.

[0003] Meanwhile, impurities will accumulate at the bottom of the refrigerant storage tank. Replacement treatment not only wastes the refrigerant but also increases the difficulty of wastewater treatment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a device for efficiently removing impurities from the refrigerant, which can effectively remove impurities from the refrigerant and avoid a decrease in the heat exchange of the refrigerant.

[0005] To achieve this technical objective, the present invention adopts the following solution: An efficient device for removing impurities from a refrigerant includes a refrigerant tank, a circulating pump, a sealed diaphragm filter press, a recovery tank, and a recovery pump. The upper part of the refrigerant tank is equipped with a refrigerant tank inlet pipeline and a refrigerant tank return pipeline, while the bottom of the refrigerant tank is equipped with a refrigerant tank outlet pipeline. A refrigerant tank outlet valve is installed on the refrigerant tank outlet pipeline, which is connected to the circulating pump via a pipeline. The circulating pump is connected to the sealed diaphragm filter press via the filter press inlet pipeline. The sealed diaphragm filter press is connected to the recovery tank via the filter press outlet pipeline. The recovery tank is connected to the recovery pump via the recovery pump inlet pipeline, and the recovery pump is connected to the refrigerant tank via the refrigerant tank return pipeline. A refrigerant tank return valve is installed at the connection point between the refrigerant tank return pipeline and the refrigerant tank.

[0006] Furthermore, the circulating pump is connected to the refrigeration unit via the refrigeration unit inlet pipeline, the refrigeration unit is connected to the heat exchange system via the refrigerant supply pipeline, and the heat exchange system is connected to the refrigerant tank via the refrigerant tank inlet pipeline.

[0007] Furthermore, the circulating pump is connected to a circulating pump return line, which is connected to a refrigerant tank. A refrigerant return main valve is installed on the line connecting the circulating pump and the circulating pump return line.

[0008] Furthermore, a refrigerant tank exhaust line is installed on the top of the refrigerant tank, and a recovery tank exhaust line is installed on the top of the recovery tank.

[0009] Furthermore, the sealed diaphragm filter press is equipped with a filter press air supply pipeline and a filter press pressure relief pipeline, and a movable sludge transfer tank is installed below the sealed diaphragm filter press.

[0010] Furthermore, a first discharge line is installed on the filter press inlet line, a second discharge line is installed at the bottom of the recovery tank, a third discharge line is installed on the refrigerant tank return line, a fourth discharge line is installed on the recovery pump inlet line, and a fifth discharge line is installed on the filter press outlet line.

[0011] Furthermore, a liquid collection pit is provided at the bottom of the refrigerant tank. The liquid collection pit is located at the farthest end of the refrigerant tank inlet pipeline, and the liquid inlet of the refrigerant tank outlet pipeline is located in the liquid collection pit.

[0012] This utility model's efficient refrigerant impurity removal device operates through three cycles: First, the main circulation, where a circulating pump delivers the refrigerant from the tank to the refrigeration unit's heat exchange system for heat exchange. After heat exchange, the refrigerant returns to the tank for the next cycle. Second, the auxiliary circulation, where the circulating pump's outlet line connects to a return line, allowing direct return to the refrigerant tank. Third, the impurity removal circulation, where the circulating pump's outlet line connects to the filter press's inlet line, allowing the refrigerant to enter a closed diaphragm filter press for online impurity removal. The impurity-removed refrigerant then returns to the tank. During continuous operation of the main circulation, the auxiliary circulation can adjust the network pressure, allowing for selection of whether to activate or deactivate the impurity removal circulation based on the refrigerant's water quality. The impurity removal circulation also functions as the auxiliary circulation.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention incorporates a bypass device for efficiently removing impurities from the refrigerant in the main process flow. This device is easy to operate, has high impurity separation efficiency, and does not generate secondary pollution. The device can be put into or taken out of operation according to the refrigerant water quality, thereby improving the refrigerant water quality, increasing the user's heat exchange efficiency, and reducing the energy consumption of the refrigeration unit. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the device for efficiently removing impurities from the refrigerant in an embodiment of this utility model.

[0015] The following are labeled in the diagram: 1. Refrigerant tank; 2. Circulation pump; 3. Closed diaphragm filter press; 4. Recovery tank; 5. Recovery pump; 6. Refrigerant tank exhaust line; 7. Refrigerant tank outlet valve; 8. Refrigerant reflux main valve; 9. First discharge line; 10. Filter press inlet line; 11. Filter press pressing air source line; 12. Filter press outlet line; 13. Second discharge line; 14. Recovery tank exhaust line; 15. Recovery pump inlet line. 16. Refrigerant tank return line; 17. Refrigerant tank return valve; 18. Filter press pressing pipe pressure relief line; 19. Refrigerant tank outlet line; 20. Collection pit; 21. Refrigeration unit; 22. Heat exchange system required; 23. Refrigeration unit inlet line; 24. Refrigerant supply line; 25. Refrigerant tank inlet line; 26. Circulation pump return line; 27. Third discharge line; 28. Fourth discharge line; 29. ​​Fifth discharge line. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0017] Please see Figure 1 This utility model provides a device for efficiently removing impurities from a refrigerant, comprising a refrigerant tank 1, a circulation pump 2, a sealed diaphragm filter press 3, a recovery tank 4, and a recovery pump 5. The upper part of the refrigerant tank 1 is provided with a refrigerant tank inlet pipeline 25 and a refrigerant tank return pipeline 16. The bottom of the refrigerant tank 1 is provided with a refrigerant tank outlet pipeline 19. A refrigerant tank outlet valve 7 is installed on the refrigerant tank outlet pipeline 19. The refrigerant tank outlet valve 7 is connected to the circulation pump 2 through a pipeline. The circulation pump 2 is connected to the closed diaphragm filter press 3 through the filter press inlet pipeline 10. The closed diaphragm filter press 3 is connected to the recovery tank 4 through the filter press outlet pipeline 12. The recovery tank 4 is connected to the recovery pump 5 through the recovery pump inlet pipeline 15. The recovery pump 5 is connected to the refrigerant tank 1 through the refrigerant tank return pipeline 16. A refrigerant tank return valve 17 is provided at the connection between the refrigerant tank return pipeline 16 and the refrigerant tank 1.

[0018] The refrigerant tank 1 is connected to the heat exchange system 22 via the refrigerant tank inlet pipeline 25. The heat exchange system 22 is connected to the refrigeration unit 21 via the refrigerant supply pipeline 24. The refrigeration unit 21 is connected to the circulating pump 2 via the refrigeration unit inlet pipeline 23.

[0019] The circulating pump 2 is connected to the circulating pump return line 26, which is connected to the refrigerant tank 1. A refrigerant return main valve 8 is installed on the line connecting the circulating pump 2 and the circulating pump return line 26.

[0020] The top of the refrigerant tank 1 is equipped with a refrigerant tank exhaust line 6, and the top of the recovery tank 4 is equipped with a recovery tank exhaust line 14. An exhaust valve is installed on the exhaust line, and the exhaust valve is kept open to prevent the accumulation of flammable gas and the resulting danger.

[0021] The initial filtration accuracy of the filter cloth in the closed diaphragm filter press 3 is 10μm~20μm, and the filtration accuracy can be adjusted by replacing the filter cloth as needed. The closed diaphragm filter press 3 is equipped with a filter press air supply line 11, which is fitted with an air supply valve. A pressure gauge is installed after the air supply valve. During pressing, the air supply valve cannot be fully opened; adjustments must be made based on the pressure gauge reading. A movable sludge transfer tank is located below the closed diaphragm filter press 3 to collect the sludge produced by the press. The closed diaphragm filter press 3 is equipped with a filter press pipe pressure relief line 18, which is fitted with a manual valve for assisting in adjusting the pressing pressure during the pressing process and for releasing residual pressure from the filter plates after pressing.

[0022] In one specific embodiment, the recovery pump 5 is frequency-controlled and is adjusted according to the water output of the closed diaphragm filter press 3.

[0023] In one specific embodiment, the circulating pump 2 is frequency-controlled and adjusted according to the needs of the heat exchange system 22.

[0024] In one specific embodiment, a first discharge pipeline 9 is provided on the filter press inlet pipeline 10, a fifth discharge pipeline 29 is provided on the filter press outlet pipeline 12, a second discharge pipeline 13 is provided at the bottom of the recovery tank 4, a fourth discharge pipeline 28 is provided on the recovery pump inlet pipeline 15, and a third discharge pipeline 27 is provided on the refrigerant tank return pipeline 16. Each discharge pipeline is equipped with a drain valve. When the pipeline or equipment needs maintenance, the discharge pipeline can discharge the refrigerant in the equipment and pipeline to an underground collection pit, where it can be recovered by a temporary gear pump. This reduces the waste of refrigerant and avoids environmental pollution caused by the refrigerant.

[0025] In one specific embodiment, a collection pit 20 is provided at the bottom of the refrigerant tank 1 to collect sediment in the refrigerant tank 1. The collection pit 20 is located at the farthest end of the refrigerant tank inlet pipeline 25. The collection pit 20 can be designed as a square, with a depth of 1 / 7 of the height of the refrigerant tank 1 and a length of 1 / 10 of the tank diameter. The inlet of the refrigerant tank outlet pipeline 19 is located in the collection pit 20.

[0026] The working process of this utility model's efficient device for removing impurities from refrigerant is as follows: the refrigerant containing impurities enters the refrigerant tank 1 through the refrigerant tank inlet pipeline 25. The refrigerant tank exhaust pipeline 6, the recovery tank exhaust pipeline 14, and the refrigerant return main valve 8 are in the open state. The first discharge pipeline 9, the second discharge pipeline 13, the third discharge pipeline 27, the fourth discharge pipeline 28, and the fifth discharge pipeline 29 are in the closed state. The sealed diaphragm filter press 3 maintains pressure. The refrigerant tank outlet valve 7 and the refrigerant tank return valve 17 are normally open. The refrigerant containing impurities in the refrigerant tank 1 enters the closed diaphragm filter press 3 under the drive of the circulation pump 2 for mud-water separation and filtration of impurities in the refrigerant. The refrigerant output from the closed diaphragm filter press 3 flows into the recovery tank 4. Driven by the recovery pump 5, the refrigerant returns to the refrigerant tank 1 through the refrigerant tank return line 16. After multiple cycles, the filtered and purified refrigerant is sent to the refrigeration unit 21 by the circulation pump 2, and then heats the system 22 that requires heat exchange. After a long period of heat exchange, the refrigerant containing impurities enters the refrigerant tank 1 through the refrigerant tank inlet line 25 and enters a new cycle.

[0027] When the filter chamber of the closed diaphragm filter press 3 is full of sludge, close the valve of the filter press inlet pipeline 10, open the air source valve on the filter press pressing air source pipeline 11 to press, and adjust the valve opening by the pressure gauge reading. After pressing, close the air source valve of the filter press pressing air source pipeline 11, and release the pressure through the filter press pressing pipe pressure relief pipeline 18. After the pressure relief is completed, stop the recovery pump 5, close the control valve of the filter press inlet pipeline 10, adjust the control valve opening of the circulation pump return pipeline 26 according to the heat exchange system 22, and operate the closed diaphragm filter press 3 to unload sludge.

[0028] 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 it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. If these modifications and variations fall within the scope of the claims of this utility model and their equivalents, they should be considered to be within the protection scope of this utility model.

Claims

1. A device for efficiently removing impurities from a refrigerant, comprising a refrigerant tank (1), a circulating pump (2), a closed diaphragm filter press (3), a recovery tank (4), and a recovery pump (5), characterized in that, The upper part of the refrigerant tank (1) is provided with a refrigerant tank inlet pipeline (25) and a refrigerant tank return pipeline (16), and the bottom of the refrigerant tank (1) is provided with a refrigerant tank outlet pipeline (19). A refrigerant tank outlet valve (7) is installed on the refrigerant tank outlet pipeline (19). The refrigerant tank outlet valve (7) is connected to the circulation pump (2) through the pipeline. The circulation pump (2) is connected to the sealed diaphragm through the filter press inlet pipeline (10). The filter press (3) is connected. The closed diaphragm filter press (3) is connected to the recovery tank (4) through the filter press outlet pipeline (12). The recovery tank (4) is connected to the recovery pump (5) through the recovery pump inlet pipeline (15). The recovery pump (5) is connected to the refrigerant tank (1) through the refrigerant tank return pipeline (16). A refrigerant tank return valve (17) is provided at the connection between the refrigerant tank return pipeline (16) and the refrigerant tank (1).

2. The apparatus for efficiently removing impurities from the refrigerant according to claim 1, characterized in that, The circulating pump (2) is connected to the refrigeration unit (21) through the refrigeration unit inlet pipeline (23). The refrigeration unit (21) is connected to the heat exchange system (22) through the refrigerant supply pipeline (24). The heat exchange system (22) is connected to the refrigerant tank (1) through the refrigerant tank inlet pipeline (25).

3. The apparatus for efficiently removing impurities from the refrigerant according to claim 1, characterized in that, The circulating pump (2) is connected to the circulating pump return line (26), which is connected to the refrigerant tank (1). A refrigerant return main valve (8) is installed on the pipeline connecting the circulating pump (2) and the circulating pump return line (26).

4. The apparatus for efficiently removing impurities from the refrigerant according to claim 1, characterized in that, The top of the refrigerant tank (1) is provided with a refrigerant tank exhaust line (6), and the top of the recovery tank (4) is provided with a recovery tank exhaust line (14).

5. The apparatus for efficiently removing impurities from the refrigerant according to claim 1, characterized in that, The closed diaphragm filter press (3) is equipped with a filter press press air source pipeline (11) and a filter press press pipe pressure relief pipeline (18). A movable sludge transfer bucket is set below the closed diaphragm filter press (3).

6. The apparatus for efficiently removing impurities from the refrigerant according to claim 1, characterized in that, A first discharge line (9) is provided on the filter press inlet line (10), a second discharge line (13) is provided at the bottom of the recovery tank (4), a third discharge line (27) is provided on the refrigerant tank return line (16), a fourth discharge line (28) is provided on the recovery pump inlet line (15), and a fifth discharge line (29) is provided on the filter press outlet line (12).

7. The apparatus for efficiently removing impurities from the refrigerant according to claim 1, characterized in that, A liquid collection pit (20) is provided at the bottom of the refrigerant tank (1). The liquid collection pit (20) is located at the farthest end of the refrigerant tank inlet pipeline (25). The inlet of the refrigerant tank outlet pipeline (19) is located in the liquid collection pit (20).

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