A filter for charging refrigerant

Abstract

The utility model relates to refrigeration equipment technical field discloses a kind of filter of refrigerant filling, including cylindrical shell, the inside of cylindrical shell is provided with mounting seat, the cylindrical shell is made of high-strength corrosion-resistant material, such as stainless steel, to ensure that under the long-term effect of refrigerant cannot be corroded and damaged, ensure the service life of filter, the inside of mounting seat is provided with internal thread, the inside of cylindrical shell is provided with filter core, the periphery of filter core is provided with docking seat.The filter of refrigerant filling, the filter of the utility model adopts high-precision filter material, can effectively remove small impurity particles in refrigerant, improve the purity of refrigerant, to improve the operating efficiency and stability of refrigeration system, reduce the occurrence of system failure, prolong the service life of refrigeration system, by the thread connection mode of the docking seat of filter core and mounting seat, greatly simplify the installation and replacement steps of filter core, reduce maintenance difficulty and time cost.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to a filter for adding refrigerant. Background Technology

[0002] During the operation of refrigeration equipment, the purity of the refrigerant is crucial. If impurities such as metal shavings, dust particles, and moisture are mixed into the refrigerant, it will lead to accelerated wear of key components inside the refrigeration system, such as the compressor and expansion valve. In severe cases, it may also cause pipeline blockage, thereby significantly reducing refrigeration efficiency, increasing equipment energy consumption, and even causing refrigeration system failure, resulting in the equipment being unable to operate normally.

[0003] Traditional refrigerant filters have low filtration accuracy, and the installation and replacement of some filter elements are cumbersome, consuming a lot of time and manpower. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a refrigerant-filled filter to solve the problems of low filtration accuracy and cumbersome filter element installation and replacement mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a refrigerant-filling filter, comprising a cylindrical shell, an inner mounting base, the cylindrical shell being made of a high-strength corrosion-resistant material, such as stainless steel, to ensure that it will not be corroded or damaged under the long-term action of the refrigerant, thus ensuring the service life of the filter; an internal thread is provided on the inner side of the mounting base; a filter element is provided inside the cylindrical shell; a mating seat is provided around the filter element; the filter element is made of a high-precision filter material, such as sintered metal mesh or polymer fiber filter material, which can effectively filter out impurity particles in the refrigerant, greatly improving the purity of the refrigerant; an external thread adapted to the internal thread is provided on the outer side of the mating seat; a first end cap is provided on the left side of the cylindrical shell; a first sealing rubber gasket is provided between the first end cap and the cylindrical shell.

[0008] Preferably, the first end cap and the cylindrical outer shell are fixedly connected by a first fixing screw. This connection method is simple and reliable, easy to disassemble and install, and convenient for inspection and maintenance of the filter's interior.

[0009] Preferably, a second end cap is provided on the right side of the cylindrical outer shell, which together with the first end cap forms a closed filtration space to ensure that the refrigerant is effectively filtered in the filter.

[0010] Preferably, a second sealing rubber gasket is provided between the cylindrical outer shell and the second end cap, and the cylindrical outer shell and the second end cap are fixedly connected by a second fixing screw.

[0011] Preferably, a liquid inlet pipe is provided on the left side of the first end cap, a first connecting flange is provided on the left side of the liquid inlet pipe, and a first mounting bolt is provided on the right side of the first connecting flange, which facilitates connection with the liquid inlet pipe of the refrigeration system, and the connection is firm and has good sealing performance.

[0012] Preferably, a liquid outlet pipe is provided on the right side of the second end cap for discharging the filtered refrigerant and returning it to the refrigeration system to continue working.

[0013] Preferably, a second connecting flange is provided on the right side of the liquid outlet pipe, and a second mounting bolt is provided on the left side of the second connecting flange. A transparent observation window is provided on the surface of the cylindrical shell, through which the flow of refrigerant inside the filter and the degree of impurity accumulation can be observed intuitively, making it convenient to judge the working status of the filter in a timely manner.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The filter for adding refrigerant uses high-precision filter material, which can effectively remove tiny impurity particles in the refrigerant, improve the purity of the refrigerant, thereby improving the operating efficiency and stability of the refrigeration system, reducing the occurrence of system failures, and extending the service life of the refrigeration system. The threaded connection between the filter element docking seat and the mounting seat greatly simplifies the installation and replacement steps of the filter element, reducing maintenance difficulty and time costs.

[0016] 2. The refrigerant-filled filter has a first sealing rubber gasket and a second sealing rubber gasket installed between the first end cap and the cylindrical outer shell, and between the second end cap and the cylindrical outer shell, respectively. The end caps are fixed with screws, which significantly improves the sealing performance of the filter and effectively avoids refrigerant leakage.

[0017] 3. The refrigerant filter has a transparent observation window on its cylindrical outer shell, allowing operators to monitor the internal working status in real time without disassembling the equipment. This facilitates timely maintenance and ensures the stable operation of the refrigeration system. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cylindrical outer shell of this utility model;

[0020] Figure 3 This is a magnified structural diagram of a part of the present invention. Figure 1 ;

[0021] Figure 4 This is a magnified structural diagram of a part of the present invention. Figure 2 .

[0022] In the diagram: 1. Cylindrical outer shell; 2. Mounting base; 3. Internal thread; 4. Filter element; 5. Connecting seat; 6. First end cap; 7. First sealing rubber gasket; 8. First fixing screw; 9. Second end cap; 10. Second sealing rubber gasket; 11. Second fixing screw; 12. Inlet pipe; 13. First connecting flange; 14. First mounting bolt; 15. Outlet pipe; 16. Second connecting flange; 17. Second mounting bolt; 18. Transparent observation window. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a refrigerant-filling filter, including a cylindrical shell 1, with a mounting base 2 inside the cylindrical shell 1. The cylindrical shell 1 is made of a high-strength corrosion-resistant material, such as stainless steel, to ensure that it will not be corroded or damaged under the long-term action of the refrigerant, thus ensuring the service life of the filter. The mounting base 2 has an internal thread 3 on its inner side. The cylindrical shell 1 has a filter element 4 inside, and a docking seat 5 is provided around the filter element 4. The filter element 4 uses a high-precision filter material, such as sintered metal mesh or polymer fiber filter material, which can effectively filter out impurity particles in the refrigerant, greatly improving the purity of the refrigerant. The docking seat 5 has an external thread that matches the internal thread 3 on its outer side. A first end cap 6 is provided on the left side of the cylindrical shell 1, and a first sealing rubber gasket 7 is provided between the first end cap 6 and the cylindrical shell 1.

[0025] The first end cap 6 and the cylindrical outer shell 1 are fixedly connected by the first fixing screw 8. The right side of the cylindrical outer shell 1 is provided with the second end cap 9. The cylindrical outer shell 1 and the second end cap 9 are provided with the second sealing rubber gasket 10. The cylindrical outer shell 1 and the second end cap 9 are fixedly connected by the second fixing screw 11. When the refrigeration system is running, the refrigerant containing impurities enters the filter through the liquid inlet pipe 12. The refrigerant first contacts the filter element 4. Since the filter element 4 uses high-precision filter material, it can effectively intercept impurities such as metal debris and dust particles in the refrigerant. The pure refrigerant after filtration enters the refrigeration system through the liquid outlet pipe 15, and returns to the refrigeration system for circulation through the pipeline connected by the second connecting flange 16 and the second mounting bolt 17.

[0026] The first end cap 6 has an inlet pipe 12 on its left side, a first connecting flange 13 on its left side, and a first mounting bolt 14 on its right side. The second end cap 9 has an outlet pipe 15 on its right side, a second connecting flange 16 on its right side, and a second mounting bolt 17 on its left side. The cylindrical outer shell 1 has a transparent observation window 18. During the operation of the filter, the operator can observe the flow of the refrigerant and the accumulation of impurities on the filter element surface through the transparent observation window 18. When it is found that a lot of impurities have accumulated and affected the filtration effect, the refrigeration system can be stopped, the first fixing screw 8 and the second fixing screw 11 can be unscrewed, and the first end cap 6 and the second end cap 9 can be removed respectively. Then, by rotating the mating seat 5 of the filter element 4, it can be unscrewed from the internal thread 3 of the mounting seat 2 and a new filter element can be replaced. After the replacement is completed, the end caps and other parts can be installed in reverse order and the filter can be put back into use.

[0027] Working principle: When the refrigeration system is running, the refrigerant containing impurities enters the filter through the liquid inlet pipe 12. The refrigerant first contacts the filter element 4. Since the filter element 4 uses high-precision filter material, it can effectively intercept impurities such as metal debris and dust particles in the refrigerant. The filtered pure refrigerant returns to the refrigeration system for circulation through the liquid outlet pipe 15, the pipeline connected by the second connecting flange 16 and the second mounting bolt 17. During the operation of the filter, the operator can observe the flow state of the internal refrigerant and the accumulation of impurities on the surface of the filter element through the transparent observation window 18. When it is found that a lot of impurities have accumulated and affected the filtration effect, the refrigeration system can be stopped, the first fixing screw 8 and the second fixing screw 11 can be unscrewed, the first end cover 6 and the second end cover 9 can be removed respectively, and then the filter element 4 can be unscrewed from the internal thread 3 of the mounting base 2 by rotating the mating seat 5. A new filter element can be replaced. After the replacement is completed, the end cover and other parts can be installed in reverse order and put back into use.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A filter for adding refrigerant, comprising a cylindrical outer shell (1), characterized in that: The cylindrical shell (1) is provided with an installation seat (2) inside. The cylindrical shell (1) is made of high-strength corrosion-resistant material, such as stainless steel, to ensure that it will not be corroded and damaged under the long-term action of the refrigerant, thus ensuring the service life of the filter. The installation seat (2) is provided with an internal thread (3) on its inner side. The cylindrical shell (1) is provided with a filter element (4) inside. The filter element (4) is provided with a docking seat (5) on its outer periphery. The filter element (4) is made of high-precision filter material, such as sintered metal mesh or polymer fiber filter material, which can effectively filter out impurity particles in the refrigerant and greatly improve the purity of the refrigerant. The docking seat (5) is provided with an external thread that matches the internal thread (3) on its outer side. The cylindrical shell (1) is provided with a first end cap (6) on its left side. A first sealing rubber gasket (7) is provided between the first end cap (6) and the cylindrical shell (1).

2. A refrigerant-filled filter according to claim 1, characterized in that: The first end cap (6) and the cylindrical outer shell (1) are fixedly connected by a first fixing screw (8).

3. A refrigerant-filled filter according to claim 2, characterized in that: A second end cap (9) is provided on the right side of the cylindrical outer shell (1).

4. A refrigerant-filled filter according to claim 3, characterized in that: A second sealing rubber gasket (10) is provided between the cylindrical outer shell (1) and the second end cap (9), and the cylindrical outer shell (1) and the second end cap (9) are fixedly connected by a second fixing screw (11).

5. A refrigerant-filled filter according to claim 4, characterized in that: A liquid inlet pipe (12) is provided on the left side of the first end cap (6), a first connecting flange (13) is provided on the left side of the liquid inlet pipe (12), and a first mounting bolt (14) is provided on the right side of the first connecting flange (13).

6. A refrigerant-filled filter according to claim 5, characterized in that: A liquid outlet pipe (15) is provided on the right side of the second end cap (9).

7. A refrigerant-filled filter according to claim 6, characterized in that: A second connecting flange (16) is provided on the right side of the liquid outlet pipe (15), a second mounting bolt (17) is provided on the left side of the second connecting flange (16), and a transparent observation window (18) is provided on the surface of the cylindrical shell (1).

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