SF6 gas rapid recovery device based on air pressure adaptive adjustment

Abstract

The utility model discloses a kind of SF6 gas rapid recovery device based on air pressure self-adapting regulation, it includes: shell, the side of the shell is provided with filter module assembly, the inner wall of the shell side is provided with clamping installation component, cover quick-release assembly and scraping net component are provided on the filter module assembly, the filter module assembly includes filter bin and cover, first filter screen and second filter screen are fixedly installed on the inner wall of the filter bin, positioning pin is fixedly installed on the outer wall of the filter bin, positioning hole is arranged in the back of the cover, air inlet is arranged on the outer wall of the cover, air inlet pipe is fixedly installed on the air inlet, mounting port is arranged on the side of the shell, bottom plate is fixedly installed on the inner wall of the side of the shell, by above structure, effectively realize the improvement recovery device overall air pressure regulation efficiency, reduce the security risk of setting.

Description

Technical Field

[0001] This utility model relates to the field of SF6 gas recovery technology, and in particular to a rapid SF6 gas recovery device based on adaptive pressure regulation. Background Technology

[0002] SF6 gas rapid recovery device is an industrial equipment specifically designed for the treatment of sulfur hexafluoride gas. It is mainly used for gas recovery from circuit breakers, transformers, and GIS switchgear in the power industry. With the development of technology, SF6 gas rapid recovery devices can be divided into different types, such as recovery devices based on gas pressure adaptive regulation and IoT intelligent devices.

[0003] Nowadays, gas recovery devices based on adaptive pressure regulation are widely used in the electrical industry. However, in most of these devices, the gas filter mechanism is fixed inside, making it unusable for traditional gas recovery devices. This makes it difficult to clean the gas filter, which can easily lead to reduced permeability, increased gas flow resistance, and a decrease in the overall pressure regulation efficiency of the recovery device. Consequently, it increases safety hazards and results in poor performance. Utility Model Content

[0004] The purpose of this invention is to provide a rapid SF6 gas recovery device based on adaptive pressure regulation. This addresses the problem that while adaptive pressure gas recovery devices are widely used in the electrical industry, most have their gas filter mechanism fixed inside, making them unusable and hindering filter cleaning. This leads to reduced permeability, increased gas flow resistance, and decreased overall pressure regulation efficiency, resulting in safety hazards and poor performance.

[0005] To achieve the above objectives, an SF6 gas rapid recovery device based on adaptive pressure regulation is provided, comprising: a housing, a filter module assembly disposed on one side of the housing, a clamping and mounting assembly disposed on the inner wall of one side of the housing, and a quick-release cap assembly and a scraper assembly disposed on the filter module assembly;

[0006] The filter module assembly includes a filter chamber and a cover. A first filter screen and a second filter screen are fixedly installed on the inner wall of the filter chamber. A positioning pin is fixedly installed on the outer wall of the filter chamber. A positioning hole is opened on the back of the cover. An air inlet is opened on the outer wall of the cover. An air inlet pipe is fixedly installed on the air inlet. An installation port is opened on one side of the outer shell. A base plate is fixedly installed on the inner wall of one side of the outer shell.

[0007] According to the aforementioned SF6 gas rapid recovery device based on gas pressure adaptive adjustment, the quick-release cap assembly includes a fixing pin and a fixing block. A sealing plate is fixedly installed on the outer wall of the fixing pin, and the fixing pin is disposed on the inner wall of a through hole opened on the outer wall of the cap.

[0008] According to the aforementioned SF6 gas rapid recovery device based on gas pressure adaptive adjustment, one end of the fixing pin is provided with a thread, the fixing block is fixedly installed on the inner walls of both sides of the filter chamber, and the outer wall of the fixing block is provided with a threaded hole.

[0009] According to the aforementioned SF6 gas rapid recovery device based on gas pressure adaptive adjustment, the clamping and mounting assembly includes a bidirectional threaded rod and a turntable. The bidirectional threaded rod is rotatably mounted on the inner wall of one side of the outer casing via a bracket. An internal threaded ring is threaded onto the outer wall of the bidirectional threaded rod. A connecting rod is fixedly mounted on the outer wall of the internal threaded ring. A clamping plate is fixedly mounted at the bottom end of the connecting rod.

[0010] According to the aforementioned SF6 gas rapid recovery device based on adaptive pressure regulation, a first bevel gear is fixedly installed on the outer wall of the middle end of the bidirectional threaded rod, the turntable is rotatably installed on one side of the outer wall of the housing, and a drive rod is fixedly installed on the outer wall of the turntable.

[0011] According to the aforementioned SF6 gas rapid recovery device based on adaptive pressure regulation, a second bevel gear is fixedly installed at the other end of the drive rod, and the first bevel gear and the second bevel gear are meshed together. The drive rod passes through a slot opened on one side of the outer casing.

[0012] According to the aforementioned SF6 gas rapid recovery device based on adaptive pressure regulation, the scraper assembly includes a long rod, a connecting rod fixedly installed at one end of the long rod, a drive blade fixedly installed at the other end of the connecting rod, and a first scraper and a second scraper fixedly installed on the side wall of the long rod.

[0013] According to the aforementioned SF6 gas rapid recovery device based on adaptive pressure regulation, the first scraper is rotatably connected to the outer wall of the first filter screen, the second scraper is rotatably connected to the outer wall of the second filter screen, and the long rod passes through the slots opened on the first and second filter screens.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] In this invention, by setting up a filter module assembly and a quick-release cap assembly, the gas filter mechanism inside the gas recovery device based on adaptive pressure regulation can be quickly disassembled and the gas filter screen can be flushed and cleaned. This avoids reduced air permeability, which would increase gas flow resistance, prevents a decrease in the overall pressure regulation efficiency of the recovery device, reduces safety hazards, and has a good performance.

[0016] In this utility model, a scraper assembly is provided. This design effectively removes impurities from the gas filter screen in the filtration mechanism, preventing clogging of the holes during operation and thus avoiding a decrease in air permeability in a short time. This further improves the air pressure regulation efficiency and results in good performance.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of an SF6 gas rapid recovery device based on adaptive pressure regulation according to this utility model;

[0020] Figure 2 This is an exploded view of the filter module component in an SF6 gas rapid recovery device based on adaptive pressure regulation according to this utility model.

[0021] Figure 3 This is an exploded view of the filter module component in an SF6 gas rapid recovery device based on adaptive pressure regulation according to this utility model.

[0022] Figure 4 This is a perspective view of the scraper assembly in an SF6 gas rapid recovery device based on adaptive pressure regulation according to this utility model.

[0023] Legend:

[0024] 1. Outer shell; 2. Inlet pipe; 3. Clamping and mounting assembly; 31. Bidirectional threaded rod; 32. First bevel gear; 33. Second bevel gear; 34. Drive rod; 35. Connecting rod; 36. Clamping plate; 37. Turntable; 38. Internal threaded ring; 4. Filter module assembly; 41. Mounting port; 42. Base plate; 43. Cover; 44. Filter chamber; 45. Inlet; 46. Positioning pin; 47. First filter screen; 48. Second filter screen; 5. Quick-release cover assembly; 51. Fixing pin; 52. Sealing plate; 53. Fixing block; 54. Threaded hole; 6. Scraper assembly; 61. Drive blade; 62. Connecting rod; 63. Long rod; 64. First scraper; 65. Second scraper. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-4 This utility model provides an SF6 gas rapid recovery device based on gas pressure adaptive adjustment, which includes: a shell 1, a filter module assembly 4 on one side of the shell 1, a clamping and mounting assembly 3 on the inner wall of one side of the shell 1, and a cap quick-release assembly 5 and a scraper assembly 6 on the filter module assembly 4.

[0027] The filter module assembly 4 includes a filter chamber 44 and a cover 43. A first filter screen 47 and a second filter screen 48 are fixedly installed on the inner wall of the filter chamber 44. A positioning pin 46 is fixedly installed on the outer wall of the filter chamber 44. A positioning hole is provided on the back of the cover 43. An air inlet 45 is provided on the outer wall of the cover 43. An air inlet pipe 2 is fixedly installed on the air inlet 45. An installation port 41 is provided on one side of the outer shell 1. A base plate 42 is fixedly installed on the inner wall of one side of the outer shell 1.

[0028] In the SF6 gas rapid recovery device based on adaptive pressure regulation of this utility model, the filter module assembly 4 is the core component. Its structural design is closely related to the components to ensure the high efficiency and stability of gas recovery. The filter module assembly 4 consists of a filter chamber 44 and a cover 43. The two are precisely matched through a positioning structure. The positioning pin 46 on the outer wall of the filter chamber 44 and the positioning hole on the back of the cover 43 form an embedded connection to ensure accurate positioning during installation and prevent gas leakage from the connection. During installation, the installation port 41 on one side of the outer shell 1 provides an installation channel for the filter module assembly 4, and the base plate 42 fixed on the inner wall of one side of the outer shell 1 provides stable support for the filter module assembly 4. The clamping installation assembly 3 clamps the filter module assembly 4 from the side. The three together ensure that the filter module assembly 4 remains stable during device operation and avoids displacement or damage to the component due to vibration. When the SF6 gas recovery operation is started, the gas enters through the inlet pipe 2. The inlet pipe 2 is fixedly connected to the inlet 45 on the outer wall of the cover 43 to form a closed gas transmission channel. After the gas enters the filter chamber 44 through the air inlet 45, it first comes into contact with the first filter screen 47. This filter screen is made of a large-pore material, which can quickly intercept larger particulate impurities such as dust and metal fragments in the gas, thus initially purifying the gas. Subsequently, the gas passes through the first filter screen 47 and continues to flow to the second filter screen 48. The second filter screen 48 has a smaller pore size and can filter out fine particles, aerosols and other impurities, thus achieving deep purification of SF6 gas.

[0029] The quick-release cap assembly 5 includes a fixing pin 51 and a fixing block 53. A sealing plate 52 is fixedly installed on the outer wall of the fixing pin 51. The fixing pin 51 is located on the inner wall of the through hole opened on the outer wall of the cap 43. One end of the fixing pin 51 is provided with a thread. The fixing block 53 is fixedly installed on the inner walls of both sides of the filter chamber 44. A threaded hole 54 is opened on the outer wall of the fixing block 53.

[0030] In the SF6 gas rapid recovery device based on gas pressure adaptive adjustment in this utility model, the design of the quick-release cap assembly 5 greatly improves the maintenance convenience of the filter module assembly 4. Its core consists of a fixing pin 51, a sealing plate 52, and a fixing block 53. The components cooperate with each other to achieve quick disassembly and assembly. The fixing pin 51 is installed on the inner wall of the through hole opened on the outer wall of the cap 43. The sealing plate 52 fixed on its outer wall can effectively prevent the fixing pin 51 from sliding freely in the through hole, thus playing a limiting role. The thread on one end of the fixing pin 51 is a key structure for achieving quick connection. The fixing block 53 is fixedly installed on the inner walls of both sides of the filter chamber 44, and the threaded hole 54 on its outer wall precisely matches the thread of the fixing pin 51. When the cover 43 needs to be installed, the positioning hole on the cover 43 is aligned with the positioning pin 46 of the filter chamber 44 and then fitted together. At this time, the threaded hole 54 on the fixing pin 51 and the fixing block 53 are also aligned accordingly. By simply rotating the fixing pin 51, the cover 43 can be firmly fixed to the filter chamber 44 using the threaded connection principle, ensuring the seal at the connection during gas recovery. To prevent SF6 gas leakage, the quick-release cap assembly 5 offers a significant advantage in rapid disassembly when maintaining or replacing components such as the filter screen within the filter module assembly 4. Simply rotate the retaining pin 51 in the reverse direction to separate it from the threaded hole 54, and the cap 43 can be easily removed from the filter chamber 44. Compared to traditional bolt connections and other fixing methods, this design eliminates the need for additional tools, greatly reducing disassembly time and improving maintenance efficiency. Furthermore, the threaded structure ensures the reliability and stability of the connection during repeated disassembly and assembly, preventing loosening or damage to the connection due to frequent disassembly.

[0031] The clamping and mounting assembly 3 includes a bidirectional threaded rod 31 and a turntable 37. The bidirectional threaded rod 31 is rotatably mounted on the inner wall of one side of the housing 1 via a bracket. An internal threaded ring 38 is threaded onto the outer wall of the bidirectional threaded rod 31. A connecting rod 35 is fixedly mounted on the outer wall of the internal threaded ring 38. A clamping plate 36 is fixedly mounted at the bottom end of the connecting rod 35. A first bevel gear 32 is fixedly mounted on the outer wall of the middle end of the bidirectional threaded rod 31. The turntable 37 is rotatably mounted on the outer wall of one side of the housing 1. A drive rod 34 is fixedly mounted on the outer wall of the turntable 37. A second bevel gear 33 is fixedly mounted at the other end of the drive rod 34. The first bevel gear 32 and the second bevel gear 33 are meshed and connected. The drive rod 34 passes through a slot opened on one side of the housing 1.

[0032] In the SF6 gas rapid recovery device based on adaptive pressure regulation of this utility model, the clamping and mounting assembly 3 undertakes the important task of firmly fixing the filter module assembly 4. Its ingenious structural design ensures the stability of the entire device operation. This assembly is mainly composed of components such as a bidirectional threaded rod 31 and a turntable 37. The various parts work closely together to achieve precise clamping. The bidirectional threaded rod 31 is rotatably mounted on the inner wall of one side of the outer shell 1 via a bracket. As a core transmission component, its unique bidirectional thread design is the key to achieving synchronous clamping on both sides. An internal threaded ring 38 is threaded on the outer wall of the bidirectional threaded rod 31. When the bidirectional threaded rod 31 rotates, due to the thread transmission principle, the internal threaded ring 38 will move along the axial direction of the threaded rod. The connecting rod 35 fixedly mounted on the outer wall of the internal threaded ring 38 is connected to the clamping plate 36 at the bottom end. The movement of the internal threaded ring 38 will drive the connecting rod 35 and the clamping plate 36 to move synchronously, thereby realizing the clamping or loosening action of the filter module assembly 4. The turntable 37 is rotatably mounted on the outer wall of one side of the outer shell 1, providing power input for the entire clamping action. A drive rod 34 fixed on the outer wall has a second bevel gear 33 mounted on its other end, which meshes with a first bevel gear 32 fixed on the outer wall of the middle end of a bidirectional threaded rod 31. When the operator rotates the turntable 37, the drive rod 34 rotates accordingly, driving the second bevel gear 33 to rotate. Through gear meshing, the first bevel gear 32 also begins to rotate, thereby causing the bidirectional threaded rod 31 to rotate. The drive rod 34 passes through a slot opened on one side of the outer casing 1, ensuring effective power transmission and avoiding interference with the outer casing 1 during rotation. This is necessary when installing the filter module. When the filter module assembly 4 is in operation, the operator only needs to rotate the turntable 37. Through bevel gear transmission and thread transmission, the clamping plates 36 on both sides move towards the middle, stably clamping the filter module assembly 4 inside the housing 1. The surface of the clamping plates 36 can be provided with anti-slip rubber pads or other cushioning materials, which can enhance the stability of clamping and avoid damage to the filter module assembly 4. When it is necessary to disassemble the filter module assembly 4 for maintenance, rotate the turntable 37 in the opposite direction. The clamping plates 36 on both sides will move outward synchronously, releasing the clamping of the filter module assembly 4, making it easy and quick to remove.

[0033] The scraper assembly 6 includes a long rod 63, with a connecting rod 62 fixedly installed at one end of the long rod 63 and a drive blade 61 fixedly installed at the other end of the connecting rod 62. A first scraper 64 and a second scraper 65 are fixedly installed on the side wall of the long rod 63. The first scraper 64 is rotatably connected to the outer wall of the first filter screen 47, and the second scraper 65 is rotatably connected to the outer wall of the second filter screen 48. The long rod 63 passes through the slots opened on the first filter screen 47 and the second filter screen 48.

[0034] In the SF6 gas rapid recovery device based on adaptive air pressure regulation of this utility model, the scraper assembly 6 is an important guarantee for maintaining the efficient operation of the filter module assembly 4. Its ingenious structural design can automatically clean the filter screen and ensure the gas filtration effect. The scraper assembly 6 is mainly composed of drive blades 61, connecting rods 62, long rods 63, first scraper 64 and second scraper 65. The components cooperate with each other to realize the filter screen cleaning function. When SF6 gas enters the filter chamber 44 through the inlet pipe 2, the flowing gas will impact the drive blades 61. The drive blades 61 are fixedly installed at one end of the connecting rod 62, and the connecting rod 62 is connected to the long rod 63. The impact force of the gas will drive the drive blades 61 to rotate, thereby causing the connecting rod 62 and the long rod 63 to rotate together. The long rod 63 passes through the first scraper 64 and the second scraper 65. The first filter screen 47 and the second filter screen 48 have slots, and a first scraper 64 fixedly installed on their side walls is rotatably connected to the outer wall of the first filter screen 47, and a second scraper 65 is rotatably connected to the outer wall of the second filter screen 48. As the long rod 63 rotates, the first scraper 64 and the second scraper 65 will move in a circular motion close to the surface of the first filter screen 47 and the second filter screen 48. During the rotation, the first scraper 64 can scrape off larger particles of impurities attached to the surface of the first filter screen 47, while the second scraper 65 is responsible for cleaning the fine particles and impurities on the surface of the second filter screen 48. Since the scraper and the filter screen are rotatably connected, it ensures that the scraper can closely fit the surface of the filter screen and effectively remove impurities, while avoiding excessive wear on the filter screen during the scraping process, thus extending the service life of the filter screen.

[0035] Working principle: First, turntable 37 is rotated. Simultaneously, turntable 37 drives the second bevel gear 33 to rotate via drive rod 34. The second bevel gear 33 meshes with the first bevel gear 32, causing it to drive the first bevel gear 32 to rotate. The first bevel gear 32 drives the bidirectional threaded rod 31 to rotate. An internal threaded ring 38 is threaded onto the outer wall of the bidirectional threaded rod 31. As the bidirectional threaded rod 31 rotates, it causes the internal threaded ring 38 to displace on its outer wall. Simultaneously, the displacement of the internal threaded ring 38, via connecting rod 35, causes the clamping plate 36 to displace, disengaging from the clamping plate. Open both sides of the filter chamber 44 to release the clamps on the filter chamber 44, pull the filter chamber 44 out from the mounting port 41, and then rotate the fixing pin 51. One end of the fixing pin 51 is threaded, so that one end of the fixing pin 51 is threadedly connected to the threaded hole 54. By rotating the fixing pin 51, one end of the fixing pin 51 is moved out of the threaded hole 54, thereby releasing the fixing of the cover 43 on the filter chamber 44, exposing the filter screen inside the filter chamber 44. Rinse the filter screen with clean water. After cleaning, return the filter chamber 44 to the inside of the outer shell 1 in the same way.

[0036] When the equipment is in operation, the gas is filtered through the first filter screen 47 and the second filter screen 48 in the filter chamber 44, and the gas enters the equipment after passing through the drive blade 61. When the high-speed flowing gas passes through the drive blade 61, it drives the drive blade 61 to rotate. The drive blade 61 drives the long rod 63 to rotate through the connecting rod 62. At the same time, the rotation of the long rod 63 drives the first scraper 64 to rotate on the outer wall of the first filter screen 47. The long rod 63 also drives the second scraper 65 to rotate on the outer wall of the second filter screen 48, thereby continuously scraping away the dust and impurities attached to the first filter screen 47 and the second filter screen 48.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rapid SF6 gas recovery device based on adaptive pressure regulation, comprising: The outer shell (1) is characterized in that a filter module assembly (4) is provided on one side of the outer shell (1), a clamping and mounting assembly (3) is provided on the inner wall of one side of the outer shell (1), and a quick-release cap assembly (5) and a scraper assembly (6) are provided on the filter module assembly (4). The filter module assembly (4) includes a filter chamber (44) and a cover (43). A first filter screen (47) and a second filter screen (48) are fixedly installed on the inner wall of the filter chamber (44). A positioning pin (46) is fixedly installed on the outer wall of the filter chamber (44). A positioning hole is provided on the back of the cover (43). An air inlet (45) is provided on the outer wall of the cover (43). An air inlet pipe (2) is fixedly installed on the air inlet (45). An installation port (41) is provided on one side of the outer shell (1). A base plate (42) is fixedly installed on the inner wall of one side of the outer shell (1).

2. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 1, characterized in that, The quick-release cap assembly (5) includes a fixing pin (51) and a fixing block (53). A sealing plate (52) is fixedly installed on the outer wall of the fixing pin (51). The fixing pin (51) is located on the inner wall of the through hole opened on the outer wall of the cap (43).

3. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 2, characterized in that, One end of the fixing pin (51) is provided with a thread, the fixing block (53) is fixedly installed on the inner walls of both sides of the filter chamber (44), and the outer wall of the fixing block (53) is provided with a threaded hole (54).

4. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 1, characterized in that, The clamping and mounting assembly (3) includes a bidirectional threaded rod (31) and a turntable (37). The bidirectional threaded rod (31) is rotatably mounted on the inner wall of one side of the outer shell (1) via a bracket. An internal threaded ring (38) is threaded onto the outer wall of the bidirectional threaded rod (31). A connecting rod (35) is fixedly mounted on the outer wall of the internal threaded ring (38). A clamping plate (36) is fixedly mounted at the bottom end of the connecting rod (35).

5. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 4, characterized in that, A first bevel gear (32) is fixedly installed on the outer wall of the middle end of the bidirectional threaded rod (31), and the turntable (37) is rotatably installed on the outer wall of one side of the outer shell (1). A drive rod (34) is fixedly installed on the outer wall of the turntable (37).

6. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 5, characterized in that, The other end of the drive rod (34) is fixedly installed with a second bevel gear (33), and the first bevel gear (32) and the second bevel gear (33) are meshed together. The drive rod (34) passes through a slot opened on one side of the outer casing (1).

7. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 1, characterized in that, The scraper assembly (6) includes a long rod (63), one end of which is fixedly mounted with a connecting rod (62), and the other end of which is fixedly mounted with a drive blade (61). A first scraper (64) and a second scraper (65) are fixedly mounted on the side wall of the long rod (63).

8. The SF6 gas rapid recovery device based on adaptive pressure regulation according to claim 7, characterized in that, The first scraper (64) is rotatably connected to the outer wall of the first filter screen (47), the second scraper (65) is rotatably connected to the outer wall of the second filter screen (48), and the long rod (63) passes through the slots opened on the first filter screen (47) and the second filter screen (48).

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