SF6 recovery equipment

By designing an SF6 recycling device with a foldable connecting pipe socket and a combination hook, the problem of time-consuming connection of traditional equipment is solved, enabling rapid installation and simplifying pipe connections, thus improving operational efficiency.

CN224229734UActive Publication Date: 2026-05-12WOLSN INSTRHANGHAI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WOLSN INSTRHANGHAI CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional SF6 recycling equipment requires a separate ten-way conduit to be installed when connected to large electrical equipment, which results in time-consuming electrical work and affects operational efficiency.

Method used

An SF6 recycling device was designed, which uses a foldable connecting pipe socket and a combination hook and combination hanging port to connect the vacuum pump and the recycling body, simplifying the assembly and disassembly process of the device, allowing a single person to quickly install and move it, and simplifying the pipeline connection through the foldable connecting pipe socket.

Benefits of technology

It enables rapid installation and relocation, simplifies pipe connection steps, and improves the operational efficiency of electricians.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses SF6 recovery equipment which comprises an SF6 recovery machine body and a vacuum pump, a compressor assembling groove is formed in the middle of the interior of the SF6 recovery machine body, a connecting pipe containing groove is formed in the top of the SF6 recovery machine body, an SF6 gas storage tank is arranged on the lower portion of the interior of the SF6 recovery machine body, and access doors are arranged on the lower portions of the two sides of the SF6 recovery machine body. A bottom protection plate is arranged in the middle of the bottom face of the SF6 recycling machine body, moving wheels are arranged on the two sides of the bottom face of the SF6 recycling machine body, a support is arranged in the middle of the front end of the SF6 recycling machine body, and a communicating pipe base is arranged above the support. The vacuum pump and the SF6 recycling machine body are fixedly connected through the combined hook and the combined hanging opening, the two devices can be rapidly combined or disassembled through the structure, the two devices can be installed together during combination, the two structures can be moved at the same time and can be operated by a single person, and time and labor are saved.
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Description

Technical Field

[0001] This utility model relates to the field of SF6 recycling equipment, specifically an SF6 recycling device. Background Technology

[0002] SF6 recovery equipment is used by manufacturers, operators, and research departments of SF6 gas-insulated electrical equipment to evacuate various electrical devices, fill them with SF6 gas, and recover SF6 gas from the used or tested electrical equipment. Simultaneously, the SF6 gas is purified, compressed, and stored in storage tanks. SF6 gas is the chemical name for sulfur hexafluoride, a synthetic inert gas. At room temperature and pressure, SF6 gas is colorless, odorless, non-toxic, non-corrosive, non-flammable, and non-explosive. Due to its unique dielectric properties, power companies heavily rely on SF6 in power grids for voltage isolation, current interruption, and arc extinguishing in power transmission and distribution. This stable and non-toxic gas has excellent dielectric strength and is a key component for the safety and efficiency of power plants.

[0003] Existing technologies for SF6 recycling equipment still have certain drawbacks in use. When traditional SF6 recycling equipment is connected to large electrical equipment, it is usually necessary to set up a separate ten-connector pipe for pipeline connection. The ten-connector pipe usually needs to be placed in the required position using a separate frame. During the operation, the transportation and installation of each device is time-consuming and not convenient for electricians to operate quickly. Utility Model Content

[0004] The purpose of this utility model is to provide an SF6 recycling device to solve the problem mentioned in the background art that when traditional SF6 recycling devices are connected to large electrical equipment, it is usually necessary to set up a separate ten-connector pipe for pipeline connection. The ten-connector pipe usually needs to be placed in the required position using a separate frame. During the operation, the transportation and installation of each device is time-consuming and inconvenient for electricians to operate quickly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an SF recovery device, comprising an SF recovery body and a vacuum pump. The SF recovery body has a compressor assembly slot in the middle of its interior, a connecting pipe storage slot at the top, an SF gas storage tank at the bottom of its interior, inspection doors at the bottom of both sides of the SF recovery body, a bottom protective plate in the middle of the bottom surface of the SF recovery body, casters on both sides of the bottom surface of the SF recovery body, a support at the middle of the front end of the SF recovery body, a connecting pipe seat above the support, a connecting pipe inside the connecting pipe seat, anti-slip pads on both sides of the bottom surface of the connecting pipe seat, support plates on both sides of the bottom of the support, a recovery pipe interface at the bottom of one side of the front end of the SF recovery body, a controller in the middle of one side of the SF recovery body, a vacuum pump located at the front end of the SF recovery body, casters at the bottom of the vacuum pump, a vacuum pump controller at the front end of the vacuum pump, and a vacuum pump interface on one side below the vacuum pump controller.

[0006] In a further embodiment, the inside of the maintenance door is provided with heat insulation cotton, the top of the maintenance door is hinged to the SF recycling machine body, and the bottom of the maintenance door is inlaid to the SF recycling machine body.

[0007] In a further embodiment, the bottom protective plate is welded to the SF recovery machine body, and the cross-section of the bottom protective plate is designed as an inverted trapezoidal structure.

[0008] In a further embodiment, the vacuum pump and the SF recovery unit are securely connected by a combination hook and a combination mounting port, and the combination hook and the vacuum pump are connected by rotation.

[0009] In a further embodiment, one end of the bottom surface of the connecting pipe seat is rotatably connected to the bracket via a pin, and the cross-section of the connecting pipe seat is designed as a U-shaped structure.

[0010] In a further embodiment, one end of the support plate is rotatably connected to the bracket, and the other end of the support plate is inlaid with the anti-slip pad.

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

[0012] In this utility model, the vacuum pump and the SF6 recovery unit are fixedly connected by a combination hook and a combination mounting port. This structure allows for quick assembly or disassembly of the two devices. When assembling, the two devices can be installed together, and both structures can be moved simultaneously. This can be operated by a single person, saving time and effort. The connecting pipe seat is designed as a foldable structure, which makes it easier to open and close the connecting pipe seat downwards or upwards, allowing the connecting pipe seat and the SF6 recovery unit to be installed as one unit, simplifying the operation steps. When connecting the pipe, simply open the connecting pipe seat downwards to connect the pipe. The installation method is simple and easier to operate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an SF6 recycling device according to the present invention;

[0014] Figure 2 This is a schematic diagram of the folding structure of the connecting pipe seat of this utility model;

[0015] Figure 3 This is a schematic diagram of the open structure of the connecting pipe seat of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the inspection door of this utility model.

[0017] In the diagram: 1. SF6 recovery unit; 2. Compressor assembly slot; 3. Controller; 4. Connecting pipe storage slot; 5. Inspection door; 6. Casters; 7. Bottom protective plate; 8. Connecting pipe seat; 9. Vacuum pump; 10. Vacuum pump controller; 11. Vacuum pump interface; 12. Casters; 13. Combination hook; 14. Anti-slip pad; 15. Bracket; 16. Support plate; 17. Combination hanging port; 18. Recovery pipe interface; 19. SF6 gas storage tank; 20. Ten-way connecting pipe; 21. Insulation cotton. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4This utility model provides an embodiment of an SF6 recovery device, comprising an SF6 recovery body 1 and a vacuum pump 9. A compressor assembly slot 2 is located in the middle of the interior of the SF6 recovery body 1. A connecting pipe storage slot 4 is located on the top of the SF6 recovery body 1. An SF6 gas storage tank 19 is located at the lower interior of the SF6 recovery body 1. Inspection doors 5 are located on the lower sides of both sides of the SF6 recovery body 1. A bottom protective plate 7 is located in the middle of the bottom surface of the SF6 recovery body 1. Inspection doors 5 are located on both sides of the bottom surface of the SF6 recovery body 1. The SF6 recovery unit 1 has 6 movable wheels, a support 15 located at the center of the front end, a connecting pipe seat 8 located above the support 15, a connecting pipe 20 located inside the connecting pipe seat 8, anti-slip pads 14 located on both sides of the bottom surface of the connecting pipe seat 8, support plates 16 located on both sides of the bottom of the support 15, a recovery pipe interface 18 located at the lower part of one side of the front end of the SF6 recovery unit 1, a controller 3 located at the center of one side of the SF6 recovery unit 1, and a vacuum pump 9 located at the front end of the SF6 recovery unit 1. The bottom of the vacuum pump 9 is equipped with... It has casters 12, a vacuum pump controller 10 at the front end of the vacuum pump 9, and a vacuum pump interface 11 on one side below the vacuum pump controller 10. SF6 gas is stored in an SF6 gas storage tank 19. An inspection door 5 allows opening or closing of both sides of the SF6 recovery unit 1 for easy maintenance of the SF6 gas storage tank 19. A pipe storage slot 4 stores various types of pipes. A bottom protective plate 7 increases the protection of the bottom of the SF6 recovery unit 1. The driving wheels 6 facilitate the effortless movement of the SF6 recovery unit 1. The bracket 15 is used to install and fix the connecting pipe seat 8. The connecting pipe seat 8 is used to install and fix the ten-connecting pipe 20. The anti-slip pad 14 is used to increase the anti-slip properties of the bottom surface. The support plate 16 is used to support and fix the open position of the connecting pipe seat 8. The controller 3 is used to set the working program of the SF6 recovery unit 1. The universal wheels 12 are used to move the vacuum pump 9 effortlessly. The vacuum pump controller 10 is used to set the working program of the vacuum pump 9.

[0020] The maintenance door 5 is equipped with insulation cotton 21 inside. The top of the maintenance door 5 is hinged to the SF6 recovery unit 1, and the bottom of the maintenance door 5 is inlaid to the SF6 recovery unit 1. The insulation cotton 21 is used to improve the insulation effect of the SF6 gas storage tank 19.

[0021] The bottom protective plate 7 is connected to the SF6 recycling machine body 1 by welding, and the cross-section of the bottom protective plate 7 is designed as an inverted trapezoidal structure. The welding connection is used to increase the firmness of the installation of the bottom protective plate 7.

[0022] The vacuum pump 9 and the SF6 recovery unit 1 are fixedly connected by a combination hook 13 and a combination hanging port 17. The combination hook 13 and the vacuum pump 9 are connected by rotation. The fixed connection makes it easy to separate the combination hook 13 and the combination hanging port 17.

[0023] One end of the bottom surface of the connecting pipe seat 8 is rotatably connected to the bracket 15 via a pin, and the cross-section of the connecting pipe seat 8 is designed with a U-shaped structure. The rotatable connection facilitates the folding or unfolding of the connecting pipe seat 8 by rotation. One end of the support plate 16 is rotatably connected to the bracket 15, and the other end of the support plate 16 is inlaid with the anti-slip pad 14. The rotatable connection facilitates the folding or unfolding adjustment of the support plate 16.

[0024] Working principle: In use, connect the vacuum pump 9 and the SF6 recovery unit 1 together by connecting the combination hook 13 and the combination hanging port 17. Push the SF6 recovery unit 1 to the desired position and move it to the desired position with ease using the moving wheels 6 and universal wheels 12. Disassemble the combination hook 13 and the combination hanging port 17, and move the vacuum pump 9 to one side of the SF6 recovery unit 1 and place it side by side. Rotate the support plate 16 outward to open it, and open the connecting pipe seat 8 downward. Use the support plate 16 to support and position the opening position of the connecting pipe seat 8. Take the pipe out of the connecting pipe storage slot 4. Connect the vacuum pump 9, the connecting pipe 20 and the SF6 recovery unit 1 through the pipe in the correct way to recover SF6 gas.

[0025] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An SF6 recovery device, comprising an SF6 recovery unit (1) and a vacuum pump (9), characterized in that: The SF6 recovery unit (1) has a compressor assembly slot (2) in the middle of its interior, a connecting pipe storage slot (4) at the top, an SF6 gas storage tank (19) at the bottom of its interior, maintenance doors (5) at the bottom of both sides of its interior, a bottom protective plate (7) in the middle of its bottom surface, casters (6) on both sides of its bottom surface, a bracket (15) in the middle of its front end, and a connecting pipe seat (8) above the bracket (15). (8) has a ten-connecting pipe (20) inside. The bottom of the connecting pipe seat (8) has anti-slip pads (14) on both sides. The bottom of the bracket (15) has support plates (16) on both sides. The front end of the SF6 recycling machine (1) has a recycling pipe interface (18) at the lower position. The middle position of one side of the SF6 recycling machine (1) has a controller (3). The vacuum pump (9) is located at the front end of the SF6 recycling machine (1). The bottom of the vacuum pump (9) has casters (12). The front end of the vacuum pump (9) has a vacuum pump controller (10). The lower side of the vacuum pump controller (10) has a vacuum pump interface (11).

2. The SF6 recycling equipment according to claim 1, characterized in that: The inspection door (5) is equipped with insulation cotton (21) inside. The top of the inspection door (5) is connected to the SF6 recycling machine (1) by a hinge, and the bottom of the inspection door (5) is connected to the SF6 recycling machine (1) by an inlay.

3. The SF6 recycling equipment according to claim 1, characterized in that: The bottom protective plate (7) is connected to the SF6 recycling machine body (1) by welding, and the cross section of the bottom protective plate (7) is set as an inverted trapezoidal structure.

4. The SF6 recycling equipment according to claim 1, characterized in that: The vacuum pump (9) and the SF6 recovery unit (1) are fixedly connected by a combination hook (13) and a combination hanging port (17), and the combination hook (13) and the vacuum pump (9) are connected by rotation.

5. An SF6 recycling device according to claim 1, characterized in that: One end of the bottom surface of the connecting pipe seat (8) is rotatably connected to the bracket (15) by a pin, and the cross section of the connecting pipe seat (8) is set as a U-shaped structure.

6. The SF6 recycling equipment according to claim 1, characterized in that: One end of the support plate (16) is rotatably connected to the bracket (15), and the other end of the support plate (16) is inlaid with the anti-slip pad (14).