Filtering structure of gas-liquid separator and gas-liquid separator

Abstract

The filtering structure of the gas-liquid separator comprises a filtering shell and a shell cover installed at an opening in the top of the filtering shell, a connecting piece is fixedly installed between the shell cover and the outer wall of the filtering shell, a filtering cylinder is detachably installed in the filtering shell, and the filtering cylinder is connected with the filtering shell. The filter cartridge is of a cylindrical structure with the top in an opening shape, a cleaning assembly is arranged in the filter cartridge, and an extrusion part is installed at the bottom end in the filter shell, liquid-phase substances enter the filter cartridge to be filtered through the filter cartridge and the cleaning assembly, impurities in the liquid-phase substances are effectively removed, and therefore the liquid-phase substances can be effectively purified. Liquid-phase substances impact on a turbine, so that the turbine is driven to rotate, the turbine drives a rotating shaft to rotate, and the rotating shaft drives a cleaning scraper to rotate on the inner side of the filter cartridge, so that impurities adhered to the inner side of the filter cartridge are scraped, the filtering effect of the filter cartridge is improved, the filter cartridge can be used for a long time, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid separators, in particular to a filtering structure of a gas-liquid separator and a gas-liquid separator. Background Art

[0002] The gas-liquid separator is mostly used in the field of refrigeration systems (such as air conditioners). By installing the gas-liquid separator between the evaporator and the compressor, the refrigerant output by the evaporator can be separated into gas and liquid, and then the gaseous refrigerant can be transported to the compressor to prevent liquid hammer on the compressor. However, the refrigerant entering the gas-liquid separator contains impurities in addition to gaseous refrigerant, liquid refrigerant and lubricating oil. If these impurities are not processed, they will enter the compressor through the oil return hole or the air outlet pipe of the gas-liquid separator, making the compression noise and power increase. In severe cases, it will also affect the working efficiency of the heat pump unit and even cause damage to the compressor. The gas-liquid separator in the prior art filters and intercepts impurities through a filtering structure, but the filtering effect of the existing filtering structure is general. After the filter cartridge in the filtering structure has been filtering for a period of time, the impurities in the liquid phase will adhere to the filter cartridge, causing the filter cartridge to be blocked, affecting the filtering effect, and the filter cartridge is inconvenient to disassemble and assemble, and is not convenient for subsequent disassembly and replacement. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a filtering structure of a gas-liquid separator and a gas-liquid separator, aiming to solve the problems that the filtering effect of the filtering structure in the prior art is general, which easily leads to clogging of the filter cartridge, affecting the filtering effect, and the filter cartridge is inconvenient to disassemble and assemble, and is not convenient for subsequent disassembly and replacement.

[0004] To achieve the above-mentioned purpose, one aspect of the utility model provides a filtering structure of a gas-liquid separator, comprising a filter shell and a shell cover installed at the top opening of the filter shell, a connecting piece is fixedly installed between the shell cover and the outer wall of the filter shell, a filter cartridge is detachably installed inside the filter shell, the filter cartridge is a cylindrical structure with an open top, a cleaning assembly is arranged inside the filter cartridge, and an extrusion piece is installed at the inner bottom end of the filter shell.

[0005] Preferably, a limiting ring is fixedly installed on the bottom of the shell cover, a positioning groove is annularly provided on the bottom of the limiting ring, and the top end of the filter cartridge is clamped in the positioning groove.

[0006] Preferably, rubber strips are fixedly installed on both sides of the positioning groove, and the two rubber strips are pressed against the two sides of the filter cartridge.

[0007] Preferably, the cleaning assembly includes a mounting bracket fixedly mounted on the top of the shell cover and a rotating shaft rotatably connected to the mounting bracket, the rotating shaft is vertically arranged at the center of the filter cartridge, the top of the rotating shaft is fixedly connected to a turbine, and two fixing rings are fixedly sleeved on the rotating shaft below the mounting bracket, fixing rods are fixedly connected on both sides of the fixing rings, and a cleaning scraper is fixedly connected between the two fixing rods on the same side, and the cleaning scraper fits the inner side of the filter cartridge.

[0008] Preferably, a liquid inlet pipe is fixedly connected to the center of the top of the shell cover, a liquid discharge pipe is fixedly connected to the center of the bottom of the filter shell, the liquid inlet pipe is connected to the liquid discharge port of the gas-liquid separator, and the liquid discharge pipe is connected to the liquid outlet pipe of the gas-liquid separator.

[0009] Preferably, the extrusion member includes a fixed ring plate fixedly connected to the bottom end of the filter housing, the top of the fixed ring plate is provided with a mounting groove, a movable ring plate is movably installed in the mounting groove, a pressure plate is fixedly connected to the top of the movable ring plate, a through hole is provided at the center of the pressure plate, and a reset spring is fixedly installed inside the mounting groove and at the bottom of the movable ring plate.

[0010] Preferably, a plurality of water passages are provided at the bottom end of the fixed ring plate along a circular direction.

[0011] Preferably, a fixing sleeve is fixedly sleeved on the outer wall of the filter housing, and an ear plate is fixedly connected to one side of the fixing sleeve.

[0012] Another aspect of the utility model provides a gas-liquid separator, comprising the filter structure of the gas-liquid separator described above, wherein the filter housing fixes the ear plate to the gas-liquid separator by bolts.

[0013] The beneficial effects of the utility model are:

[0014] (1) Through the filter cartridge and cleaning assembly of the utility model, liquid substances enter the filter cartridge for filtering treatment, effectively removing impurities therein, and the liquid substances impact on the turbine, thereby driving the turbine to rotate, and the turbine drives the rotating shaft to rotate, and the rotating shaft drives the cleaning scraper to rotate on the inner side of the filter cartridge, which is used to scrape off impurities adhered to the inner side of the filter cartridge, thereby improving the filtering effect of the filter cartridge, allowing the filter cartridge to maintain long-term use, and improving practicality.

[0015] (2) The utility model provides a limit ring to facilitate quick disassembly and assembly of the filter cartridge and the shell cover, and facilitates replacement of the filter cartridge. Through the provided extrusion piece, after the shell cover and the filter housing are assembled, the bottom of the filter cartridge is placed on the pressure plate, and the filter cartridge is pushed tightly against the shell cover by the action of the spring, so as to prevent the filter cartridge from being separated from the shell cover under the impact of liquid phase substances, thereby affecting the filtering effect of the liquid phase substances, and improving the convenience of replacing the filter cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the extrusion part of the utility model;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of area A.

[0021] In the figure: 1. filter housing; 2. shell cover; 3. liquid inlet pipe; 4. liquid discharge pipe; 5. connecting piece; 6. filter cartridge; 7. limit ring; 701. rubber strip; 8. cleaning assembly; 801. mounting frame; 802. rotating shaft; 803. turbine; 804. fixing sleeve; 805. fixing rod; 806. cleaning scraper; 9. extrusion piece; 901. fixing ring plate; 9011. water trough; 9012. mounting groove; 902. movable ring plate; 903. pressure plate; 904. reset spring; 10. fixing sleeve; 1001. ear plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] See also Figure 1-4 The present embodiment provides a filtering structure of a gas-liquid separator, comprising a filtering shell 1 and a shell cover 2 installed at the top opening of the filtering shell 1, a connecting piece 5 is fixedly installed between the shell cover 2 and the outer wall of the filtering shell 1, a liquid inlet pipe 3 is fixedly connected to the center of the top of the shell cover 2, a liquid discharge pipe 4 is fixedly connected to the center of the bottom of the filtering shell 1, the liquid inlet pipe 3 is connected to the liquid discharge port of the gas-liquid separator, and the liquid discharge pipe 4 is connected to the liquid outlet pipe of the gas-liquid separator, which is used to filter the liquid phase material output by the gas-liquid separator, which can effectively remove impurities therein and improve the reaction efficiency of the liquid participating in subsequent reactions.

[0025] In this embodiment, the connecting member 5 is a connecting block, a threaded rod, a locking nut, and a fixed block structure, which is a prior art and is used to quickly disassemble and assemble the shell cover 2 and the filter housing 1. The connecting member 5 can be arranged in four groups at equal intervals along the outer walls of the filter housing 1 and the shell cover 2 to improve the locking effect between the filter housing 1 and the shell cover 2. In this embodiment, a sealing ring is provided at the connection between the shell cover 2 and the filter housing 1 to improve the sealing effect.

[0026] In this embodiment, if Figure 2 As shown, a filter cartridge 6 is detachably installed inside the filter housing 1. The filter cartridge 6 is a cylindrical structure with an open top. Liquid substances are transported to the inside of the filter housing 1 through the liquid inlet pipe 3. The liquid substances enter the filter cartridge 6 for filtering and effectively remove impurities therein.

[0027] In this embodiment, if Figure 4 As shown, a limiting ring 7 is fixedly installed at the bottom of the shell cover 2, and a positioning groove is provided in an annular shape at the bottom of the limiting ring 7. The top end of the filter cartridge 6 is clamped in the positioning groove. The setting of the limiting ring 7 facilitates quick disassembly and assembly of the filter cartridge 6 and the shell cover 2, thereby facilitating the replacement of the filter cartridge 6.

[0028] In this embodiment, if Figure 4 As shown, rubber strips 701 are fixedly installed on both sides of the positioning groove, and the two rubber strips 701 are pressed against the two sides of the filter cartridge 6. The rubber strips 701 are provided to improve the stability of the filter cartridge 6 and the limiting ring 7 after assembly.

[0029] In this embodiment, if Figure 2 As shown, a cleaning assembly 8 is arranged inside the filter cartridge 6, and the cleaning assembly 8 includes a mounting frame 801 fixedly mounted on the top of the shell cover 2 and a rotating shaft 802 rotatably connected to the mounting frame 801, the rotating shaft 802 is vertically arranged at the center of the filter cartridge 6, a turbine 803 is fixedly connected to the top of the rotating shaft 802, and two fixed collars 804 are fixedly sleeved on the rotating shaft 802 below the mounting frame 801, and both sides of the fixed collar 804 are fixedly connected to fixed rods 805, and a cleaning rod 805 is fixedly connected between the two fixed rods 805 on the same side. The scraper 806 and the cleaning scraper 806 are attached to the inner side of the filter cartridge 6, and the turbine 803 is located directly below the liquid inlet pipe 3. When the liquid phase material is transported to the inside of the filter shell 1, the liquid phase material impacts the turbine 803, thereby driving the turbine 803 to rotate, and the rotating shaft 802 driven by the turbine 803 rotates, and the rotating shaft 802 drives the cleaning scraper 806 to rotate on the inner side of the filter cartridge 6, so as to scrape off the impurities adhered to the inner side of the filter cartridge 6, thereby improving the filtering effect of the filter cartridge 6, so that the filter cartridge 6 can maintain long-term use and improve practicality.

[0030] In this embodiment, if Figure 2 and Figure 3As shown, an extrusion piece 9 is installed at the inner bottom end of the filter housing 1, and the extrusion piece 9 includes a fixed ring plate 901 fixedly connected to the inner bottom end of the filter housing 1, and a mounting groove 9012 is provided in an annular manner on the top of the fixed ring plate 901, and a movable ring plate 902 is movably installed in the mounting groove 9012, and a pressure plate 903 is fixedly connected to the top of the movable ring plate 902, and a through hole is provided at the center of the pressure plate 903, and a reset spring 904 is fixedly installed inside the mounting groove 9012 and at the bottom of the movable ring plate 902. After the shell cover 2 and the filter housing 1 are assembled, the bottom of the filter cartridge 6 is placed on the pressure plate 903, and the filter cartridge 6 is pushed to press against the shell cover 2 by the action of the spring 904, so as to prevent the filter cartridge 6 from being separated from the shell cover 2 under the impact of the liquid phase substance, thereby affecting the filtering effect on the liquid phase substance.

[0031] In this embodiment, if Figure 3 As shown, a plurality of water grooves 9011 are provided in a circular direction at the bottom end of the fixed ring plate 901 , so that the liquid phase material filtered by the filter cartridge 6 enters the drain pipe 4 through the water grooves 9011 and is discharged.

[0032] In this embodiment, if Figure 1 As shown, a fixing sleeve 10 is fixedly sleeved on the outer wall of the filter housing 1 , and an ear plate 1001 is fixedly connected to one side of the fixing sleeve 10 .

[0033] This embodiment also proposes a gas-liquid separator, including the filtering structure of the gas-liquid separator in the above embodiment, the filter shell 1 fixes the ear plate 1001 on the gas-liquid separator by bolts, and the specific implementation method of the filtering structure of the gas-liquid separator can refer to the above embodiment. Since the gas-liquid separator adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought by the above technical solutions, which will not be repeated here.

[0034] Working principle: The filtering structure of the gas-liquid separator is installed on the gas-liquid separator, the liquid inlet pipe 3 is connected to the liquid discharge port of the gas-liquid separator, the liquid discharge pipe 4 is connected to the liquid outlet pipe of the gas-liquid separator, the liquid phase material output by the gas-liquid separator is transported to the inside of the filter housing 1, and is filtered through the filter cartridge 6 to effectively remove impurities therein, and the filtered liquid phase material is discharged through the liquid discharge pipe 4, and the liquid phase material impacts the turbine 803, thereby driving the turbine 803 to rotate, the rotating shaft 802 driven by the turbine 803 rotates, and the rotating shaft 802 drives the cleaning scraper 806 to rotate inside the filter cartridge 6 , which is used to scrape off impurities adhered to the inner side of the filter cartridge 6, improve the filtering effect of the filter cartridge 6, and enable the filter cartridge 6 to maintain long-term use. When the filter cartridge 6 needs to be replaced, the shell cover 2 is removed, and then the filter cartridge 6 is removed, and then the top of the filter cartridge 6 is clamped in the positioning groove of the limit ring 7, and then the shell cover 2 is assembled with the filter housing 1, and the bottom of the filter cartridge 6 is placed on the pressure plate 903. The filter cartridge 6 is pushed tightly against the shell cover 2 through the action of the spring 904, so as to prevent the filter cartridge 6 from being separated from the shell cover 2 under the impact of the liquid phase substance, thereby affecting the filtering effect on the liquid phase substance and improving the convenience of replacing the filter cartridge 6.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A filtering structure of a gas-liquid separator, characterized in that: The invention comprises a filter housing (1) and a housing cover (2) installed at the top opening of the filter housing (1); a connecting piece (5) is fixedly installed between the housing cover (2) and the outer wall of the filter housing (1); a filter cartridge (6) is detachably installed inside the filter housing (1); the filter cartridge (6) is a cylindrical structure with an opening at the top; a cleaning assembly (8) is arranged inside the filter cartridge (6); and an extrusion piece (9) is installed at the bottom end of the filter housing (1).

2. The filter structure of a gas-liquid separator according to claim 1, characterized in that: A limiting ring (7) is fixedly mounted on the bottom of the shell cover (2), a positioning groove is provided in an annular shape on the bottom of the limiting ring (7), and the top end of the filter cartridge (6) is clamped in the positioning groove.

3. The filter structure of a gas-liquid separator according to claim 2, characterized in that: Rubber strips (701) are fixedly mounted on both sides of the interior of the positioning groove, and the two rubber strips (701) are pressed against both sides of the filter cartridge (6).

4. The filter structure of a gas-liquid separator according to claim 1, characterized in that: The cleaning assembly (8) comprises a mounting frame (801) fixedly mounted on the top of the shell cover (2) and a rotating shaft (802) rotatably connected to the mounting frame (801); the rotating shaft (802) is vertically arranged at the center of the filter cartridge (6); a turbine (803) is fixedly connected to the top of the rotating shaft (802); two fixing rings (804) are fixedly sleeved on the rotating shaft (802) below the mounting frame (801); fixing rods (805) are fixedly connected to both sides of the fixing rings (804); a cleaning scraper (806) is fixedly connected between the two fixing rods (805) on the same side; the cleaning scraper (806) is attached to the inner side of the filter cartridge (6).

5. The filter structure of a gas-liquid separator according to claim 1, characterized in that: A liquid inlet pipe (3) is fixedly connected to the center of the top of the shell cover (2), and a liquid discharge pipe (4) is fixedly connected to the center of the bottom of the filter shell (1); the liquid inlet pipe (3) is connected to the liquid discharge port of the gas-liquid separator, and the liquid discharge pipe (4) is connected to the liquid outlet pipe of the gas-liquid separator.

6. The filter structure of a gas-liquid separator according to claim 1, characterized in that: The extrusion member (9) comprises a fixed ring plate (901) fixedly connected to the bottom end of the filter housing (1); a mounting groove (9012) is provided in an annular shape at the top of the fixed ring plate (901); a movable ring plate (902) is movably installed in the mounting groove (9012); a pressure plate (903) is fixedly connected to the top of the movable ring plate (902); a through hole is provided at the center of the pressure plate (903); a return spring (904) is fixedly installed inside the mounting groove (9012) and at the bottom of the movable ring plate (902).

7. The filter structure of a gas-liquid separator according to claim 6, characterized in that: The bottom end of the fixed ring plate (901) is provided with a plurality of water passages (9011) along a circular direction.

8. The filter structure of a gas-liquid separator according to claim 1, characterized in that: A fixing sleeve (10) is fixedly sleeved on the outer wall of the filter housing (1), and an ear plate (1001) is fixedly connected to one side of the fixing sleeve (10).

9. A gas-liquid separator, characterized in that: It comprises the filter structure of the gas-liquid separator according to any one of claims 1 to 8, wherein the filter housing (1) fixes the ear plate (1001) on the gas-liquid separator by means of bolts.

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