SF6 gas decomposition detection equipment

Abstract

The invention discloses SF6 gas decomposition detection equipment, and relates to the technical field of SF6 gas decomposition detection, and the SF6 gas decomposition detection equipment comprises a detection box, a gas extraction structure and a detection mechanism; the detection mechanism comprises a detection box, a detection plate, a partition plate piece, a rotating block, a reinforcing block, a rotating rod, a rotating motor, a detection test piece, an exhaust pipe and an observation probe; the detection box, the air exhaust structure, the detection box, the detection plate, the detection test piece and the detection test paper are matched to rapidly perform color development detection on SO2 or H2S, the detection efficiency of SF6 gas decomposition detection is improved, the position of the detection plate is adjusted through the cooperation of a rotating block, a reinforcing block, a rotating rod and a rotating motor, the detection effect of the detection mechanism is improved, and the detection test piece, a pressing ring, a fixing block and a fixing rod are matched to improve the detection efficiency. The connecting screw rod, the first gear, the first gear ring, the second gear ring, the second gear, the guide block and the inner-lacking gear ring are matched with one another, so that the test piece can be quickly disassembled or fixed.

Description

Technical Field

[0001] This invention belongs to the field of SF6 gas decomposition detection technology, specifically an SF6 gas decomposition detection device. Background Technology

[0002] SF6 gas is a colorless, odorless, non-toxic, and non-flammable inert gas. Its core characteristics are extremely strong insulation and arc-quenching properties, making it a commonly used key medium in power equipment. It is gaseous at room temperature and pressure, with a density approximately five times that of air, and exhibits extremely high chemical stability, with a critical temperature of about 45.5℃. SF6 gas is used as an insulation and arc-quenching medium in high-voltage switches, GIS, transformers, and other equipment, which can significantly reduce equipment size and improve operational reliability. When circuit breakers and disconnectors in GIS equipment are operated, short-term high-voltage arcs are generated. The instantaneous release of energy directly breaks the SF chemical bonds in SF6, first producing intermediate products such as S (sulfur atoms) and SF4. These intermediate products react with O2, moisture, or hydrocarbons in the equipment to generate SO2 and H2S. Therefore, a device for detecting the decomposition of SF6 gas is needed.

[0003] Existing equipment for SF6 gas decomposition detection requires gas component testing instruments to undergo pretreatment processes such as filtration, drying, pressure stabilization, and splitting before gas detection. During gas detection, these instruments employ gas chromatography, infrared spectroscopy, or mass spectrometry, requiring separation, identification, and quantification. To ensure accuracy in low-concentration detection, the instruments extend signal acquisition time, further prolonging the detection cycle. Furthermore, these instruments measure not only SO2 and H2S but also SF6 purity, moisture, HF, and other parameters simultaneously. The hardware and software must accommodate the detection logic for different components, making it impossible to optimize response speed for a single gas or two. This results in a slow overall detection process. However, the concentrations of SO2 and H2S at the site are typically around 75 ppm, requiring detection within 3 minutes. Therefore, these gas component testing instruments fail to meet the demands of users. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a device for detecting the decomposition of SF6 gas.

[0005] An SF6 gas decomposition detection device includes: a detection chamber and an extraction structure disposed outside the detection chamber. The detection chamber is provided with a detection mechanism communicating with the extraction structure. The detection mechanism includes a detection box symmetrically fixedly disposed inside the detection chamber and several detection plates movably disposed inside the detection box. The detection plates are circular in structure, and the vertical cross-section of the detection box is circular. The detection box has a partition plate inside, which divides the internal space of the detection box into a detection chamber and a non-detection chamber. The detection chamber is located in the lower inner part of the detection box. Since the density of SO2 and H2S gases is greater than that of air, SO2 and H2S will not rapidly diffuse upwards after leakage, but will sink downwards like water. The non-detection chamber is located in the upper inner part of the detection box, reducing the possibility of SO2 and H2S escaping into the non-detection chamber. The detection mechanism also... The system includes a rotating block rotatably mounted inside a detection box and controlling the synchronous rotation of several detection plates, and a reinforcing block connecting the rotating block to the detection plates. The rotating block has a cylindrical structure, with a rotating rod at one end that is rotatably connected to the detection box. A rotary motor connected to the rotating rod is located on the outer wall of the detection box. The detection plates have through slots and detachably mounted test specimens. The test specimens in the two detection boxes respectively detect SO2 and H2S gases produced by the decomposition of SF6 gas. SO2 or H2S is introduced into the detection box, and the test specimens quickly develop color. The exhaust end of the extraction structure is connected to both detection boxes, and an exhaust pipe is detachably mounted on the other side of the detection box to quickly expel the detected gases. An observation probe extending into the detection chamber is mounted on the detection box, transmitting the color change of the test specimens to the user.

[0006] As a further aspect of the present invention: the air extraction structure includes an adapter detachably mounted on the outer wall of the detection chamber and an air extraction device for introducing gas into the adapter. The air extraction device is provided with a gas guide pipe communicating with the adapter. The adapter is provided with a detection tube that extends into the detection box and is aligned with the test piece in the detection chamber. The detection tube is provided with a sealing ring that fits against the detection plate. The air inlet end of the air extraction device is provided with a filter cover, which can filter impurities in the gas in the detection box to prevent impurities from damaging the detection plate.

[0007] As a further aspect of the present invention: the test piece is detachably provided with a test strip, the test piece is in the form of a ring, the test piece is provided with a fixing groove for fixing the test strip, both the detection plate and the test piece are provided with through grooves that match the test strip, the test piece is provided with a pressure ring for fixing the test strip, the pressure ring is provided with a circular array of fixing blocks that are fixedly connected to the test piece, the fixing blocks are provided with fixing rods, and the pressure ring, fixing blocks and fixing rods cooperate to fix the test strip to the test piece.

[0008] As a further aspect of the present invention: the detection mechanism further includes a connecting component for fixing or disassembling the test piece on the detection plate. The detection plate is provided with a connecting groove for moving the test piece. The connecting component includes a plurality of connecting blocks arranged in a circular array on the outer wall of the test piece and a connecting screw rotatably disposed on the detection plate and threadedly connected to the connecting blocks. One end of the connecting screw is coaxially provided with a first gear. The inside of the detection plate is provided with a first gear ring that meshes with the first gear. The first gear ring controls the synchronous rotation of the plurality of first gears, thereby causing the plurality of connecting screws to drive the test piece to move on the detection plate through the connecting blocks, thereby fixing or disassembling the test piece.

[0009] As a further embodiment of the present invention: the connecting assembly further includes a second gear ring disposed on the outer wall of the first gear ring and a second gear rotatably disposed inside the detection plate and meshing with the second gear ring. The first gear ring is configured as an inner gear ring, and the second gear ring is configured as an outer gear ring. The first gear ring and the second gear ring can be configured as an integral piece. Both the first gear ring and the second gear ring are vertically provided with a plurality of guide blocks that rotate with the detection plate. The detection plate is provided with guide grooves that slide with the guide blocks, so that when the second gear rotates, the rotation of the second gear ring drives the rotation of the first gear ring, thereby controlling the rotation of the first gear ring.

[0010] As a further aspect of the present invention: the connecting assembly further includes a missing toothed ring disposed on the inner wall of the detection box, and the detection plate is provided with a first groove that matches the missing toothed ring. One end of the missing toothed ring can extend into the first groove and mesh with the second gear. When the detection plate rotates into the non-detection cavity, the second gear meshes with the missing toothed ring, causing the second gear to rotate and causing the second toothed ring and the first toothed ring to rotate, thereby driving the first gear to rotate and controlling the test piece to move.

[0011] As a further aspect of the present invention: the non-detection cavity is symmetrically divided into a disassembly area for the test piece and an installation area for the test piece. The missing internal gear ring is respectively set in the disassembly area and the installation area. When the detection plate rotates to the disassembly area, the second gear meshes with the missing internal gear ring, and the test piece begins to be disassembled. When the detection plate rotates to the installation area, the second gear meshes with the missing internal gear ring, and the test piece begins to be installed.

[0012] As a further embodiment of the present invention: the detection mechanism further includes a specimen recycling box disposed on the outer wall of the detection box and communicating with the non-detection cavity, and a specimen storage box disposed aligned with the installation area and communicating with the non-detection cavity. The specimen recycling box and the specimen storage box are disposed parallel to each other. The specimen recycling box is provided with a recycling component for recycling the test specimens. The specimen storage box stores a plurality of test specimens. The specimen storage box is provided with an installation component for mounting the test specimens onto the detection plate.

[0013] As a further aspect of the present invention: both the recycling assembly and the installation assembly include a drive gear ring rotatably mounted on a drive gear ring and a plurality of transmission gears meshing with the drive gear ring. The drive gear ring is provided with a rotating block. The plurality of transmission gears are respectively rotatably mounted on the inner wall of the specimen recycling box and the inner wall of the specimen storage box, and the transmission gears can be aligned with the first gear. When the detection plate rotates to the disassembly area or the installation area, the transmission gears are aligned with the first gear. The recycling assembly also includes a feeding screw coaxially connected to the transmission gears, and the installation assembly also includes a feeding screw coaxially connected to the transmission gears. Both the unloading screw and the loading screw can be engaged with the connecting screw. The connecting block is threadedly connected to either the unloading screw or the loading screw, allowing the test plate to rotate to the disassembly area. The connecting screw then moves the test piece to the unloading screw via the connecting block. The drive gear ring and transmission gear work together to control the rotation of the unloading screw, transferring the connecting block onto the unloading screw for test piece recovery. When the test plate rotates to the installation area, the drive gear ring and transmission gear work together to control the rotation of the loading screw, transferring the connecting block from the loading screw to the connecting screw, and causing the connecting screw to rotate for test piece installation.

[0014] As a further aspect of the present invention: the outer walls of the specimen recycling box and the specimen storage box are both equipped with drive motors, the output shaft of the drive motor is coaxially connected to the rotating block, the transmission gear is provided with a plurality of weight reduction grooves, and the specimen recycling box and the specimen storage box are both configured as cylindrical structures.

[0015] As a further aspect of the present invention: the partition plate is provided with a second groove for the rotation of the detection plate, the rotating block, and the reinforcing block. When the detection plate rotates, the detection plate is in contact with the inner wall of the second groove. The partition plate includes a first partition plate that is inclined and symmetrically arranged in the detection box and a second partition plate that is horizontally arranged in the detection box. The angle between the two first partition plates is set to 120 degrees. The two ends of the second partition plate are respectively connected to the two first partition plates. One end face of the first partition plate is in contact with the inner wall of the detection box, and the two end faces of the second partition plate are aligned with the outer wall of the rotating block, so that the rotating block and the second partition plate are always in a close and sealed state. The partition plate is provided with a sealing component for sealing the second groove.

[0016] As a further aspect of the present invention: the sealing assembly includes a sealing plate movably disposed in the first partition plate and a plurality of screw drive structures for controlling the movement of the sealing plate. The screw drive structures are configured as reciprocating screw structures, capable of controlling the reciprocating movement of the sealing plate. The sealing plate is disposed parallel to the first partition plate, and a sealing groove that fits with the sealing plate is provided on the first partition plate. The sealing assembly also includes a first bevel gear structure coaxially connected to the screw drive structure and a first transmission rod coaxially connected to the first bevel gear structure. The plurality of first transmission rods are all coaxially disposed.

[0017] As a further aspect of the present invention: the sealing assembly further includes a second transmission rod coaxially connected to the first bevel gear structure and a second bevel gear structure coaxially connected to the other end of the second transmission rod. The second bevel gear structure controls the first bevel gear structure and the first transmission rod to rotate through the second transmission rod, so that the sealing plate seals or opens the second groove.

[0018] As a further embodiment of the present invention: the lead screw transmission structure includes a lead screw nut connected to a sealing plate and a lead screw component for controlling the movement of the lead screw nut. The sealing plate has a corresponding connecting hole for the lead screw component. One end of the lead screw component extends into the connecting hole, and the other end of the lead screw component is coaxially connected to the first bevel gear structure.

[0019] As a further aspect of the present invention: the sealing assembly further includes a transmission block coaxially connected to the rotating block and two symmetrical sealing gears symmetrically connected to the transmission block. The transmission block has an annular groove matching the sealing gear. The annular groove has a plurality of sealing toothed strips arranged in a circular array to mesh with the sealing gear. The sealing gear is coaxially connected to the second bevel gear structure. The second partition plate has a transmission groove that fits with the transmission block. When the rotating block drives the detection plate to move toward the partition plate through the reinforcing block, the transmission block controls the rotation of the sealing gear through the sealing toothed strips. This causes the second bevel gear structure, the second transmission rod, the first bevel gear structure, the first transmission rod, and the screw transmission structure to cooperate in controlling the sealing plate to open the sealing groove. When the detection plate leaves the partition plate, the transmission block controls the sealing gear to continue rotating through the sealing toothed strips. When the detection plate rotates to the disassembly area or the installation area, the second bevel gear structure, the second transmission rod, the first bevel gear structure, the first transmission rod, and the screw transmission structure cooperate in controlling the sealing plate to seal the sealing groove.

[0020] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention, through the setting of the detection box and detection mechanism, the gas extraction structure, detection box, detection plate, test piece and test paper can quickly perform colorimetric detection of SO2 or H2S, and monitor the color development of the test paper through the observation probe, thereby improving the detection efficiency of SF6 gas decomposition detection. The setting of the partition plate can divide the detection box into detection chambers, and the position of the detection plate can be adjusted through the cooperation of the rotating block, the reinforcing block, the rotating rod and the rotating motor, so that the test piece and the test paper can perform multiple gas detections, thereby improving the detection effect of the detection mechanism. The setting of the test piece, the pressure ring, the fixing block and the fixing rod can fix or disassemble the test paper. The setting of the connecting screw, the first gear, the first gear ring, the second gear ring, the second gear, the guide block and the missing inner gear ring can quickly disassemble or fix the test piece, thereby improving the detection efficiency and use effect of the gas decomposition detection equipment.

[0021] (2) The present invention, through the setting of the recycling component and the installation component, enables the test specimen recycling box and the test specimen storage box to be aligned with the test plate respectively. The drive motor, drive gear ring, transmission gear and rotating block can control the rotation of the feeding screw or the loading screw. When the feeding screw is aligned with the connecting screw, the test specimen on the test plate can be disassembled and transferred to the feeding screw on the test specimen recycling box. When the loading screw is aligned with the connecting screw, the test specimen on the loading screw in the test specimen storage box can be transferred to the connecting screw. The connecting screw, connecting block, first gear, first gear ring, second gear ring, second gear and missing inner gear ring cooperate to install the test specimen on the test plate, thereby disassembling and recycling or loading and installing the test specimen, improving the use effect of the recycling component and the installation component.

[0022] (3) The present invention, through the sealing component, the first partition plate, the second partition plate and the second groove cooperate to enable the detection plate, the rotating block and the reinforcing block to rotate in the detection box, and adjust the position of the test specimen and the test paper. Through the transmission block, the sealing gear and the sealing toothed strip, the rotating block can rotate to drive the sealing gear to work. Through the sealing plate, the lead screw transmission structure, the first bevel gear structure, the first transmission rod, the second transmission rod and the second bevel gear structure, the second groove on the partition plate can be sealed to prevent gas from escaping to the non-detection area and contaminating the test paper in the specimen storage box, thereby improving the sealing effect of the sealing component and improving the use effect of the gas decomposition detection equipment. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the present invention.

[0024] Figure 2 This is a partial structural diagram of the detection mechanism in this invention.

[0025] Figure 3 This is a partial structural diagram of the detection plate, recycling component, and installation component in this invention.

[0026] Figure 4 This is a partial structural diagram of the detection plate and the missing internal tooth ring in this invention.

[0027] Figure 5 This is a partial structural diagram of the test specimen and connecting components in this invention.

[0028] Figure 6 This is a partial structural diagram of the test specimen and test paper in this invention.

[0029] Figure 7 This is a partial structural diagram of the recycling component in this invention.

[0030] Figure 8 This is a partial structural diagram of the partition plate and sealing assembly in this invention.

[0031] Figure 9 This is a partial structural diagram of the sealing assembly in this invention.

[0032] Figure 10 In this invention Figure 9 Enlarged view of the structure at point A in the middle.

[0033] Figure 11 This is a partial structural diagram of the air extraction structure in this invention.

[0034] In the diagram: 1. Detection box; 2. Vacuum structure; 3. Detection box; 4. Detection plate; 5. Divider plate; 6. Rotating block; 7. Reinforcing block; 8. Rotating rod; 9. Rotary motor; 10. Test piece; 11. Exhaust pipe; 12. Adapter; 13. Vacuum equipment; 14. Air guide pipe; 15. Detection tube; 16. Sealing ring; 17. Filter cover; 18. Observation probe; 19. Test paper; 20. Pressure ring; 21. Fixing block; 22. Fixing rod; 23. Connecting screw; 24. First gear; 25. First gear ring; 26. Second gear ring; 27. ... 28. Guide block; 29. ​​Missing internal gear ring; 30. Specimen recovery box; 31. Specimen storage box; 32. Drive gear ring; 33. Transmission gear; 34. Rotating block; 35. Feeding screw; 36. Loading screw; 37. Drive motor; 38. First partition plate; 39. Second partition plate; 40. Sealing plate; 41. Screw transmission structure; 42. First bevel gear structure; 43. First transmission rod; 44. Second transmission rod; 45. Second bevel gear structure; 46. Transmission block; 47. Sealing gear; 48. Sealing missing toothed rack; 49. Connecting block. Detailed Implementation

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1 Please see Figure 1 - Figure 6 and Figure 11 This application provides an SF6 gas decomposition detection device, including a detection box 1 and an extraction structure 2 disposed outside the detection box 1. The detection box 1 is equipped with a detection mechanism communicating with the extraction structure 2. The detection mechanism includes a detection box 3 symmetrically fixed inside the detection box 1 and several detection plates 4 movably disposed inside the detection box 3. The detection plates 4 are circular in shape, and the vertical cross-section of the detection box 3 is circular. The detection box 3 has a partition plate 5 inside, which divides the internal space of the detection box 3 into a detection chamber and a non-detection chamber. The detection chamber is located in the lower inner part of the detection box 3. Since the density of SO2 and H2S gases is greater than that of air, SO2 and H2S will not rapidly diffuse upwards after leakage, but will sink downwards like water. The non-detection chamber is located in the upper inner part of the detection box 3, reducing the possibility of SO2 and H2S escaping into the non-detection chamber. The detection mechanism also includes a rotating block 6 rotatably disposed inside the detection box 3 and controlling the synchronous rotation of the several detection plates 4, and a mechanism for connecting the rotating block 6 to... The detection plate 4 is connected to the reinforcing block 7. In this embodiment, the number of rotating blocks 6 and reinforcing blocks 7 are both set to three. The rotating block 6 has a cylindrical structure, and one end of the rotating block 6 is provided with a rotating rod 8 that is rotatably connected to the detection box 3. The outer wall of the detection box 3 is provided with a rotating motor 9 that is connected to the rotating rod 8. The detection plate 4 has a through groove, and the detection plate 4 is detachably provided with a test piece 10. The test pieces 10 in the two detection boxes 3 respectively detect SO2 and H2S gases decomposed from SF6 gas. SO2 or H2S is introduced into the detection plate 4. In box 3, the test specimen 10 can quickly develop color; the exhaust end of the air extraction structure 2 is connected to the two test boxes 3 respectively, and the other side of the test box 3 is detachably equipped with an exhaust pipe 11, which can quickly discharge the gas that has been tested in the test box 3. The exhaust pipe 11 is connected to a negative pressure device. After a test is completed, the negative pressure device is activated, and the gas inside the test chamber is discharged through the exhaust pipe 11; the test box 3 is equipped with an observation probe 18 that extends into the test chamber. The observation probe 18 can transmit the color change of the test specimen 10 to the user end.

[0037] In this embodiment, the gas extraction structure 2 introduces the gas to be detected into the detection box 3, allowing the gas to enter the detection chamber. The gas is then detected by the test specimen 10 on the detection plate 4. When SF6 gas decomposes into SO2 and H2S gases, the test specimen 10 can quickly develop color. The observation probe 18 detects the color change of the test specimen 10, reminding the staff that the SF6 gas has decomposed. The rotary motor 9 is started, driving the rotating rod 8 to rotate, which in turn drives the rotating block 6 to rotate. The rotating block 6 rotates through the three reinforcing blocks 7, thus rotating the three rotating blocks 6. The detected test specimen 10 is rotated from the detection chamber to the non-detection chamber through the detection plate 4, and the undetected test specimen 10 in the non-detection chamber is rotated into the detection chamber.

[0038] In this invention, the air extraction structure 2 includes an adapter 12 detachably mounted on the outer wall of the test box 1 and an air extraction device 13 for introducing gas into the adapter 12. The air extraction device 13 is provided with an air guide pipe 14 communicating with the adapter 12. The adapter 12 is provided with a test tube 15 extending into the test box 3 and aligned with the test piece 10 in the test chamber. The test tube 15 is provided with a sealing ring 16 that fits against the test plate 4. The air inlet end of the air extraction device 13 is provided with a filter cover 17, which can filter impurities in the gas in the test box 3 to prevent impurities from damaging the test plate 4.

[0039] In this embodiment, the gas extraction device 13 is started, the gas is filtered through the filter cover 17 to remove impurities, and the gas is introduced into the adapter 12 through the gas guide pipe 14. The adapter 12 introduces the gas into two detection chambers through the detection pipe 15, so that the test specimen 10 in the detection chamber can detect the gas.

[0040] In this invention, the test piece 10 is detachably equipped with test paper 19. Two types of test paper 19 are provided, capable of detecting SO2 and H2S gases respectively. The test piece 10 has a circular ring structure and a fixing groove for fixing the test paper 19. Both the detection plate 4 and the test piece 10 have through grooves matching the test paper 19. The test piece 10 has a pressure ring 20 for fixing the test paper 19. The pressure ring 20 has a circular array of fixing blocks 21 fixedly connected to the test piece 10. The fixing blocks 21 have fixing rods 22. The pressure ring 20, fixing blocks 21, and fixing rods 22 cooperate to fix the test paper 19 to the test piece 10. The test piece 10 has a fixing groove connected to the fixing blocks 21, and both the fixing blocks 21 and the test piece 10 have fixing holes connected to the fixing rods 22.

[0041] In this embodiment, when the gas to be detected is in contact with the test piece 10, the test paper 19 detects the gas. The test paper 19 is aligned and placed into the test piece 10. The pressure ring 20 is connected to the test piece 10. The fixing block 21 is installed on the test piece 10, so that the fixing rod 22 fixes the fixing block 21.

[0042] The detection mechanism of this invention also includes a connecting component for fixing or disassembling the test piece 10 on the detection plate 4. The detection plate 4 is provided with a connecting groove for moving the test piece 10. The connecting component includes a plurality of connecting blocks 49 arranged in a circular array on the outer wall of the test piece 10 and a connecting screw 23 rotatably disposed on the detection plate 4 and threadedly connected to the connecting blocks 49. One end of the connecting screw 23 is coaxially provided with a first gear 24. The inside of the detection plate 4 is provided with a first gear ring 25 that meshes with the first gear 24. The first gear ring 25 controls the synchronous rotation of the plurality of first gears 24, thereby causing the plurality of connecting screws 23 to drive the test piece 10 to move on the detection plate 4 through the connecting blocks 49, thereby fixing or disassembling the test piece 10.

[0043] In this embodiment, rotating the first gear ring 25 drives several first gears 24 to rotate, which in turn drives the connecting screw 23 to rotate, which in turn drives the connecting block 49 to move, which in turn drives the test piece 10 to move, allowing the test piece 10 to be removed from or installed from the test plate 4.

[0044] The connecting assembly of this invention further includes a second gear ring 26 disposed on the outer wall of the first gear ring 25 and a second gear 27 rotatably disposed inside the detection plate 4 and meshing with the second gear ring 26. The first gear ring 25 is configured as an inner gear ring, and the second gear ring 26 is configured as an outer gear ring. The first gear ring 25 and the second gear ring 26 can be configured as an integral piece. Both the first gear ring 25 and the second gear ring 26 are vertically provided with a plurality of guide blocks 28 that rotate with the detection plate 4. The detection plate 4 is provided with guide grooves that slide with the guide blocks 28, so that when the second gear 27 rotates, the rotation of the second gear ring 26 drives the rotation of the first gear ring 25, so that the first gear ring 25 controls the rotation of the first gear 24.

[0045] In this embodiment, when the second gear 27 rotates, it drives the second gear ring 26 to rotate, which in turn drives the first gear ring 25 to rotate. This causes the first gear ring 25 and the second gear ring 26 to drive the guide block 28 to rotate in the guide groove. This causes the first gear ring 25 to drive the first gear 24 to rotate, and the first gear 24 controls the movement of the test piece 10 through the connecting screw 23 and the connecting block 49.

[0046] The connecting assembly of the present invention also includes a toothed ring 29 with a missing inner tooth 29 disposed on the inner wall of the detection box 3. A first groove matching the toothed ring 29 is provided on the detection plate 4. One end of the toothed ring 29 can extend into the first groove and mesh with the second gear 27. When the detection plate 4 rotates into the non-detection cavity, the second gear 27 meshes with the toothed ring 29, causing the second gear 27 to rotate and causing the second toothed ring 26 and the first toothed ring 25 to rotate, driving the first gear 24 to rotate and controlling the test piece 10 to move.

[0047] In this embodiment, when the rotating block 6 drives the detection plate 4 to rotate, the detection plate 4 rotates to the missing internal tooth ring 29, causing the missing internal tooth ring 29 to enter the first groove and mesh with the second gear 27. The missing internal tooth ring 29 drives the second gear 27 to rotate, causing the second tooth ring 26 and the first tooth ring 25 to rotate. Through the first gear 24, the connecting screw 23 drives the connecting block 49 to rotate, thereby disassembling the test piece 10.

[0048] Example 2 Based on Example 1, referring to Figure 2 - Figure 3 and Figure 5 - Figure 7 This is the second embodiment of the present invention. In this embodiment, the non-detection cavity is symmetrically divided into a disassembly area for the test piece 10 and an installation area for the test piece 10. The missing internal gear ring 29 is respectively disposed in the disassembly area and the installation area. When the detection plate 4 rotates to the disassembly area, the second gear 27 meshes with the missing internal gear ring 29, and the test piece 10 is disassembled. When the detection plate 4 rotates to the installation area, the second gear 27 meshes with the missing internal gear ring 29, and the test piece 10 is installed.

[0049] The detection mechanism of the present invention also includes a specimen recovery box 30 disposed on the outer wall of the detection box 3 and communicating with the non-detection cavity, and a specimen storage box 31 disposed aligned with the installation area and communicating with the non-detection cavity. The specimen recovery box 30 and the specimen storage box 31 are arranged in parallel alignment. The specimen recovery box 30 is provided with a recovery component for recovering the test specimens 10. The specimen storage box 31 stores a plurality of test specimens 10. The specimen storage box 31 is provided with an installation component for mounting the test specimens 10 onto the detection plate 4.

[0050] In this embodiment, when the rotating block 6 drives the detection plate 4 to rotate to the disassembly area, the specimen recycling box 30 recycles the test specimen 10 on the detection plate 4 through the recycling component. After recycling is completed, the rotating block 6 drives the detection plate 4 to rotate to the installation area, so that the installation component installs the test specimen 10 in the specimen storage box 31 onto the detection plate 4.

[0051] In this invention, both the recycling component and the installation component include a drive gear ring 32 rotatably mounted on the drive gear ring 32 and several transmission gears 33 meshing with the drive gear ring 32. A rotating block 34 is provided on the drive gear ring 32. The several transmission gears 33 are respectively rotatably mounted on the inner wall of the specimen recycling box 30 and the inner wall of the specimen storage box 31, and the transmission gears 33 can be aligned with the first gear 24. When the detection plate 4 rotates to the disassembly area or the installation area, the transmission gears 33 are aligned with the first gear 24. The recycling component also includes a feeding screw 35 coaxially connected to the transmission gears 33, and the installation component also includes a feeding screw 36 coaxially connected to the transmission gears 33. One end of the feeding screw 35 and one end of the feeding screw 36 can both engage with the connecting screw 23. The feeding screw 35 or the feeding screw 36 is connected to the connecting screw 23. When the connecting screw 23 is engaged, the rotation of the unloading screw 35 or the loading screw 36 will not cause the connecting screw 23 to rotate. The connecting block 49 is threadedly connected to the unloading screw 35 or the loading screw 36 respectively, so that the test plate 4 rotates to the disassembly area. The connecting screw 23 moves the test piece 10 to the unloading screw 35 through the connecting block 49. The drive gear ring 32 and the transmission gear 33 cooperate to control the rotation of the unloading screw 35, transferring the connecting block 49 to the unloading screw 35, and retrieving the test piece 10. When the test plate 4 rotates to the installation area, the drive gear ring 32 and the transmission gear 33 cooperate to control the rotation of the loading screw 36, transferring the connecting block 49 on the loading screw 36 to the connecting screw 23, and causing the connecting screw 23 to rotate to install the test piece 10.

[0052] In this embodiment, when the recycling component and the installation component are working, the detection plate 4 rotates to disassemble the test piece 10 via the connecting screw 23, causing the rotating block 34 to drive several transmission gears 33 to rotate via the drive gear ring 32. This causes the transmission gears 33 to drive the unloading screw 35 or the loading screw 36 to rotate. When the unloading screw 35 is aligned with the connecting screw 23, the connecting screw 23 moves the connecting block 49 onto the unloading screw 35. The unloading screw 35 rotates to recycle the test piece 10 via the connecting block 49. When the loading screw 36 is aligned with the connecting screw 23, the loading screw 36 rotates to transfer the connecting block 49 to the connecting screw 23. As the detection plate 4 continues to rotate, the connecting screw 23 installs the test piece 10 via the connecting block 49.

[0053] In this invention, the outer walls of the specimen recycling box 30 and the specimen storage box 31 are both equipped with drive motors 37. The output shaft of the drive motor 37 is coaxially connected to the rotating block 34. The transmission gear 33 is provided with several weight reduction grooves. Both the specimen recycling box 30 and the specimen storage box 31 are set as cylindrical structures.

[0054] In this embodiment, the drive motor 37 is started, which drives the rotating block 34 to rotate, so that the rotating block 34 drives the drive gear ring 32 to rotate, and the drive gear ring 32 drives the transmission gear 33 to rotate.

[0055] Example 3 Based on Example 2, referring to Figure 3 and Figure 8 - Figure 10 This is the third embodiment of the present invention. In this embodiment, the partition plate 5 has a second groove for rotating the detection plate 4, the rotating block 6, and the reinforcing block 7. When the detection plate 4 rotates, it fits against the inner wall of the second groove. The partition plate 5 includes a first partition plate 38 that is symmetrically arranged in the detection box 3 and a second partition plate 39 that is horizontally arranged in the detection box 3. The angle between the two first partition plates 38 is set to 120 degrees. The two ends of the second partition plate 39 are respectively connected to the two first partition plates 38. One end face of the first partition plate 38 fits against the inner wall of the detection box 3, and the two end faces of the second partition plate 39 are aligned with the outer wall of the rotating block 6, so that the rotating block 6 and the second partition plate 39 are always in a fitted and sealed state. The partition plate 5 is provided with a sealing component for sealing the second groove.

[0056] In this embodiment, when the detection plate 4 rotates, the sealing assembly opens the second groove; when the detection plate 4 passes the partition plate 5, the sealing assembly seals the second groove.

[0057] The sealing assembly of the present invention includes a sealing plate 40 movably disposed in a first partition plate 38 and a plurality of lead screw transmission structures 41 for controlling the movement of the sealing plate 40. The lead screw transmission structure 41 is configured as a reciprocating lead screw structure, which can control the sealing plate 40 to reciprocate. The sealing plate 40 is arranged parallel to the first partition plate 38. A sealing groove that fits with the sealing plate 40 is provided on the first partition plate 38. The sealing assembly also includes a first bevel gear structure 42 coaxially connected to the lead screw transmission structure 41 and a first transmission rod 43 coaxially connected to the first bevel gear structure 42. The plurality of first transmission rods 43 are all coaxially arranged.

[0058] In this embodiment, the rotation of the first transmission rod 43 drives the first bevel gear structure 42 to rotate, which in turn drives the lead screw transmission structure 41 to rotate, which in turn drives the sealing plate 40 to reciprocate, thereby sealing or opening the second groove.

[0059] The sealing assembly of the present invention further includes a second transmission rod 44 coaxially connected to the first bevel gear structure 42 and a second bevel gear structure 45 coaxially connected to the other end of the second transmission rod 44. The second bevel gear structure 45 controls the first bevel gear structure 42 and the first transmission rod 43 to rotate through the second transmission rod 44, so that the sealing plate 40 seals or opens the second groove.

[0060] In this embodiment, the rotation of the second bevel gear structure 45 drives the second transmission rod 44 to rotate, which in turn drives the first bevel gear structure 42 to rotate, and the first bevel gear structure 42 drives the first transmission rod 43 to rotate.

[0061] In this invention, the lead screw transmission structure 41 includes a lead screw nut connected to the sealing plate 40 and a lead screw component that controls the movement of the lead screw nut. The sealing plate 40 has a corresponding connection hole for the lead screw component. One end of the lead screw component extends into the connection hole, and the other end of the lead screw component is coaxially connected to the first bevel gear structure 42.

[0062] The sealing assembly of this invention also includes a transmission block 46 coaxially connected to the rotating block 6 and two symmetrical sealing gears 47 symmetrically connected to the transmission block 46. The transmission block 46 has an annular groove matching the sealing gears 47, and a plurality of sealing toothed racks 48 meshing with the sealing gears 47 are arranged in a circular array within the annular groove. The sealing gears 47 are coaxially connected to the second bevel gear structure 45. The second partition plate 39 has a transmission groove that fits against the transmission block 46. When the rotating block 6 drives the detection plate 4 to move towards the partition plate 5 via the reinforcing block 7, the transmission block 46 passes through the sealing toothed racks 48... 8 controls the rotation of the sealing gear 47, causing the second bevel gear structure 45, the second transmission rod 44, the first bevel gear structure 42, the first transmission rod 43, and the lead screw transmission structure 41 to cooperate in controlling the sealing plate 40 to open the sealing groove. When the detection plate 4 leaves the partition plate 5, the transmission block 46 controls the sealing gear 47 to continue rotating through the sealing toothed rack 48. When the detection plate 4 rotates to the disassembly area or the installation area, the second bevel gear structure 45, the second transmission rod 44, the first bevel gear structure 42, the first transmission rod 43, and the lead screw transmission structure 41 cooperate in controlling the sealing plate 40 to seal the sealing groove.

[0063] In this embodiment, when the rotating block 6 rotates, it causes the transmission block 46 to rotate, which in turn causes the sealing gear 47 to rotate. The sealing gear 47 then causes the second bevel gear structure 45 to rotate, which in turn causes the second bevel gear structure 45 to rotate via the second transmission rod 44. This causes the first bevel gear structure 42 to rotate via the second transmission rod 43, which in turn causes several lead screw transmission structures 41 to work, thereby moving the sealing plate 40 and allowing the sealing plate 40 to seal or open the second groove.

[0064] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A device for detecting the decomposition of SF6 gas, characterized in that, include: The detection box (1) has two detection boxes (3) symmetrically arranged inside to detect the gases decomposed by SF6. The detection plates (4) are arranged in a circular array in the detection box (3) and are tested by the test specimen (10); A partition plate (5) is set in the detection box (3) to seal and divide the internal space of the detection box (3) into a detection chamber and a non-detection chamber; Connecting blocks (49) are arranged in a circular array on the outer wall of the detection plate (4), and the test piece (10) is moved by connecting screws (23); The first gear (24) is rotatably mounted in the detection plate (4) and coaxially connected with the connecting screw (23). The first gear (24) controls the rotation of the connecting screw (23) through the first gear ring (25) to disassemble or install the test piece (10).

2. The SF6 gas decomposition detection device according to claim 1, characterized in that, The outer wall of the first toothed ring (25) is provided with a second toothed ring (26); The detection plate (4) is equipped with a second gear (27) that controls the rotation of the second gear ring (26). The first toothed ring (25) and the second toothed ring (26) are provided with a plurality of guide blocks (28) that rotate with the detection plate (4).

3. The SF6 gas decomposition detection device according to claim 2, characterized in that, The inner wall of the detection box (3) is symmetrically provided with toothed rings (29). The detection plate (4) has a first groove that matches the missing inner tooth ring (29); The missing internal toothed ring (29) can mesh with the second gear (27); When the detection plate (4) rotates into the non-detection cavity, the second gear (27) meshes with the missing tooth ring (29). The second gear (27) rotates and causes the second tooth ring (26) and the first tooth ring (25) to rotate, driving the first gear (24) to rotate and controlling the test piece (10) to move.

4. The SF6 gas decomposition detection device according to claim 3, characterized in that, The non-detection cavity is symmetrically divided into a disassembly area and an installation area for the test piece (10); The two missing internal toothed rings (29) are respectively set in the disassembly area and the installation area of ​​the test piece (10); The outer wall of the test box (3) is provided with a specimen recovery box (30) that communicates with the disassembly area; The specimen recycling box (30) has a specimen storage box (31) that is parallel to and connected to the installation area on one side.

5. The SF6 gas decomposition detection device according to claim 4, characterized in that, Both the specimen recovery box (30) and the specimen storage box (31) are equipped with a rotatable drive gear ring (32); The outer side of the drive gear ring (32) is engaged with several transmission gears (33). The transmission gear (33) can be aligned with the first gear (24).

6. The SF6 gas decomposition detection device according to claim 5, characterized in that, The specimen recycling box (30) is equipped with a feeding screw (35) that is coaxially connected to the transmission gear (33); The specimen storage box (31) is provided with a feeding screw (36) coaxially connected to the transmission gear (33). One end of the feeding screw (35) and one end of the feeding screw (36) can be aligned with one end of the connecting screw (23); The connecting block (49) can be threadedly connected to the unloading screw (35) or the loading screw (36) respectively; When the feeding screw (35) or feeding screw (36) is aligned with the connecting screw (23), the drive gear ring (32) and the transmission gear (33) work together to control the feeding screw (35) or feeding screw (36) to rotate, transfer the connecting block (49) to the feeding screw (35) to recycle the test piece (10), or transfer the connecting block (49) on the feeding screw (36) to the connecting screw (23) to install the test piece (10) through the connecting block (49).

7. The SF6 gas decomposition detection device according to claim 1, characterized in that, The partition plate (5) includes: The first partition plate (38) is symmetrically and inclinedly arranged on the inner wall of the detection box (3); The second partition plate (39) is horizontally positioned inside the detection box (3) and is connected to the two first partition plates (38) respectively; The first partition plate (38) and the second partition plate (39) are each provided with a second groove for the detection plate (4) and the rotating block (6) to pass through; The inner side of the second partition plate (39) is sealed to the two end faces of the rotating block (6).

8. The SF6 gas decomposition detection device according to claim 7, characterized in that, The first partition plate (38) is movably provided with a sealing plate (40) to block the second groove; The first partition plate (38) is provided with a screw drive structure (41) for controlling the movement of the sealing plate (40). One end of the lead screw transmission structure (41) is provided with a first bevel gear structure (42). A first transmission rod (43) is provided between several first bevel gear structures (42), so that the first bevel gear structure (42) and the first transmission rod (43) cooperate to control several lead screw transmission structures (41) to synchronously drive the sealing plate (40) to move, thereby sealing or opening the second groove.

9. A detection device for SF6 gas decomposition according to claim 8, characterized in that, One end of the first bevel gear structure (42) is provided with a second transmission rod (44) that extends into the second partition plate (39); The other end of the second transmission rod (44) is coaxially connected to a second bevel gear structure (45); The second partition plate (39) is symmetrically provided with sealing gears (47) that are coaxially connected to the second bevel gear structure (45); The sealing gear (47) rotates, and the first bevel gear structure (42) and the first transmission rod (43) are controlled to rotate by the second bevel gear structure (45) and the second transmission rod (44).

10. A detection device for SF6 gas decomposition according to claim 9, characterized in that, One end of the rotating block (6) is coaxially provided with a transmission block (46); The transmission block (46) has an annular groove that matches the sealing gear (47); The annular groove is provided with a number of sealing toothed strips (48) arranged in a circular array to mesh with the sealing gear (47). The transmission block (46) uses the sealing toothed rack (48) and sealing gear (47) to enable the second bevel gear structure (45) and the first bevel gear structure (42) to control several screw transmission structures (41) to move the sealing plate (40) synchronously, thereby sealing or opening the second groove, so that the rotating block (6) can drive the detection plate (4) from the partition plate (5) into the disassembly area or installation area through the reinforcing block (7).

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