Gas pipeline filtering and separating device

Abstract

The application provides a gas pipeline filtering and separating device, which comprises a cylindrical shell, a detachable sealing cover plate fixed at the top of the shell, an air inlet pipe and an air outlet pipe arranged at the top and the bottom respectively, a cylindrical filtering basket arranged in the shell, and a side cleaning assembly arranged on the annular curved surface of the filtering basket and located in the inner cavity of the shell. When the side cleaning assembly moves axially along the filtering basket, the impurities adhered to the surface of the filtering basket can be separated and guided to be collected, and the side cleaning assembly can attract the magnetic particles in the gas by magnetic force. A driving assembly is in transmission connection with the side cleaning assembly by magnetic force, and is used for driving the side cleaning assembly to move axially along the shell. The side cleaning assembly is moved axially along the filtering basket to realize cleaning and guiding collection, so that a cleaning-collecting-collecting process is formed, and the re-attachment of impurities is reduced. Meanwhile, the magnetic and iron-containing impurities can be captured by magnetic force, the load of the filtering basket is reduced, the flow capacity and filtering stability are improved, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of gas filtration and separation, specifically to a gas pipeline filtration and separation device. Background Technology

[0002] During the extraction, storage, transportation, and transmission of natural gas, it is easy to carry rust particles, welding slag, metal shavings, dust, and other solid impurities. If these impurities enter downstream equipment along with the natural gas, they can easily cause wear and blockage of valves, pressure regulators, flow meters, and other equipment, and also affect the operational stability of the gas system. Therefore, filtration and separation devices are usually installed in natural gas transmission pipelines to intercept and filter solid particulate impurities in the natural gas, thereby improving the cleanliness of the natural gas and ensuring the normal operation of downstream equipment.

[0003] Currently, basket filters are widely used as filtration equipment in the field of gas filtration. A basket filter typically consists of a housing and a filter basket housed inside the housing. Gas enters the housing through the inlet, and impurities are trapped on the surface of the filter basket by its filtration action. The filtered gas then continues to flow downstream into the pipeline. Due to its simple structure, large filtration area, strong pressure resistance, and convenient maintenance, basket filters are widely used in natural gas transmission, gas pressure regulating stations, and industrial gas supply systems.

[0004] However, in actual use, impurities in the gas continuously adhere to and accumulate on the surface of the filter basket. As operating time increases, the flow area of ​​the filter basket gradually decreases, and the filtration resistance continuously increases, thus affecting the filtration efficiency and gas delivery capacity. When the impurities accumulated on the surface of the filter basket reach a certain level, it is usually necessary to stop the equipment operation, remove the sealing cover plate on the top of the housing, and remove the entire filter basket from the housing for manual cleaning or replacement. The above maintenance methods are not only cumbersome and labor-intensive, but also require interrupting the gas filtration process, affecting the continuous operation capability of the equipment. At the same time, during the removal and cleaning of the filter basket, some impurities are prone to re-scattering or remaining inside the housing, thus affecting the subsequent filtration effect. Therefore, how to effectively clean and collect impurities on the surface of the filter basket without disassembling it, reduce the degree of filter basket clogging, and improve the continuous operation capability of the equipment has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This invention provides a gas pipeline filtration and separation device to address the problems of existing gas filters requiring manual cleaning by removing the sealing cover and taking out the filter basket after impurities accumulate on the surface of the filter basket, which leads to cumbersome maintenance, poor equipment operation continuity, and difficulty in effectively collecting impurities.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides a gas pipeline filtration and separation device, including a cylindrical shell, a detachable sealing cover plate fixed to the top of the shell, an inlet pipe and an outlet pipe respectively provided at the top and bottom of the shell, and a cylindrical filter basket provided inside the shell, the filter basket being sealed to the inner wall of the shell on one side of the bottom of the inlet pipe. The side cleaning component is located on the annular curved surface of the filter basket and in the inner cavity of the housing. When the side cleaning component moves along the axial direction of the filter basket, it can remove the impurities attached to the filter basket and guide and collect them after they are removed. The side cleaning component uses magnetic force to adsorb impurities in the gas. The drive assembly is magnetically connected to the side cleaning assembly and is used to drive the side cleaning assembly to move axially along the housing.

[0007] The top of the filter basket is fixed with an overlapping ring plate of an annular structure, which overlaps with an annular protrusion on the inner wall of the housing on one side of the bottom of the air intake pipe. A handle is fixed to the top of the filter basket.

[0008] In this technical solution, the driving component includes a driving part and a magnetic suction part. The driving part is disposed on the housing, and the driving part pushes the magnetic suction part to move along the axial direction of the housing. The moving magnetic suction part pushes the side cleaning component to move synchronously through magnetic force.

[0009] In this technical solution, the driving unit includes a self-driving rod arranged along the axial direction of the housing. The self-driving rod is fixedly mounted on a fixed frame on the outer wall of the housing, and the end of the movable rod on the output end of the self-driving rod is fixedly connected to the magnetic suction unit.

[0010] In this technical solution, the magnetic attraction part includes a first bearing ring, which is sleeved around the periphery of the housing, and a plurality of external driving magnetic blocks are fixed on the inner ring sidewall of the first bearing ring in a ring array. At least two guide sleeves arranged in a ring array are fixed on the outer ring sidewall of the first bearing ring. The guide sleeves are slidably sleeved on the surface of the first vertical shaft arranged along the axial direction of the housing. Both ends of the first vertical shaft are fixed on the outer wall of the housing. The first bearing ring is connected to the output end of the drive unit.

[0011] Specifically, the end of the moving rod is fixedly connected to the outer ring sidewall of the first bearing ring.

[0012] In this technical solution, the side cleaning component includes an outer cleaning part and an inner dust collection part respectively disposed outside and inside the filter basket. The outer cleaning part and the inner dust collection part are connected by magnetic transmission. The outer cleaning part is connected to the drive component by transmission. The inner dust collection part adsorbs impurities in the gas through magnetic force. The inner dust collection section has a ring-shaped structure and is located adjacent to the inner wall of the filter basket. The inner dust collection section can switch between a retracted state and an extended state as it moves with the drive component. When the inner dust collection section is in the extended state, it forms a collection space for receiving impurities.

[0013] In this technical solution, the inner dust collection part includes a side dust collection ring. The outer ring sidewall of the side dust collection ring is attached to the inner wall of the filter basket. A driven magnetic block with a ring structure is embedded and fixed on the outer wall of the dust collection ring. The lower half of the side dust collection ring is a ring dust collection end with a rectangular cross section, and the upper half is a ring guide end with a right-angled triangle cross section. The dust collection end forms an annular dust collection chamber inside, and several through holes are opened on the side wall of the dust collection chamber to facilitate the flow of gas from the dust collection chamber during dust collection. The guide end is connected to the dust collection chamber through the groove structure on its surface, and the groove structure is covered with an expandable and retractable guide cover.

[0014] In this technical solution, the bottom end of the flow guide cover is rotatably connected to the bottom side wall of the dust collection ring, and a first coil spring is provided at the rotatable connection between the flow guide cover and the dust collection ring; a limiting member corresponding to the flow guide cover and capable of pushing the flow guide cover to rotate and cover the surface of the trough structure is fixed on the circular inner wall at the bottom of the filter basket.

[0015] In this technical solution, the surface of the dust collection channel is covered with a first cover plate. The first cover plate is connected to the guide cover plate through two transmission components arranged on opposite sides. When the guide cover plate is unfolded, the first cover plate is driven to detach from the surface of the dust collection channel through the transmission components.

[0016] In this technical solution, the transmission component includes a first guide rail, which is fixed on the outer wall of the guide groove on one side of the dust collection channel. A first slider is slidably connected to the surface of the first guide rail. One end of a connecting rod is rotatably connected to the surface of the first slider, and the other end of the connecting rod is rotatably connected to a second slider. The second slider is slidably connected to the surface of the second guide rail, and the second guide rail is fixed to the outer wall of the guide cover. The first slider is fixed to the first cover plate by a synchronizing rod, and the connecting rod has an "L" shaped structure.

[0017] In this technical solution, a lower cleaning component is also provided on the bottom circular sidewall of the filter basket cavity. The lower cleaning component includes a lower dust collection ring, which is fixed at the edge of the bottom circular sidewall of the filter basket cavity and is coaxially arranged with the filter basket. The surface of the lower dust collection ring is provided with through holes, and the lower dust collection ring penetrates the bottom sidewall of the filter basket. A plurality of inlet through slots are provided on the inner ring sidewall of the lower dust collection ring located in the filter basket cavity. It also includes a flow guide block located at the center of the circular sidewall at the bottom of the filter basket's inner cavity. The flow guide block has a conical structure, and the conical surface at the top of the flow guide block guides part of the gas to flow toward the edge of the circular sidewall at the bottom of the filter basket's inner cavity, making it easier to blow impurities to the inlet channel.

[0018] In this technical solution, the lower cleaning component also includes an adjustment section, which can be driven by the initially upward-moving inner dust collection section to release the blockage of the inlet channel and drive the guide block to move upward. The upward-moving guide block guides some of the gas to the bottom of the filter basket cavity, further away from the central area and closer to the outer periphery of the filter basket inner wall, so as to drive the impurities deposited at the bottom of the filter basket to transfer to the inlet channel, thereby improving the impurity collection efficiency.

[0019] In this technical solution, the adjustment part includes a second cover plate covering the inlet channel. The second cover plate can slide along the axial direction of the housing. An "L"-shaped fixing rod is fixed on the outer wall of the second cover plate. The end of the fixing rod extends to the top of the lower dust collection ring, and a transmission plate is rotatably connected to the end. A second coil spring is provided at the rotatable connection between the transmission plate and the end of the fixing rod. When the second coil spring does not deform, the transmission plate is set in the horizontal direction. The bottom of the inner dust collection section is fixed with a drive ring that can overlap with the transmission plate; The second cover plate drives the guide block to move synchronously via a transmission rod.

[0020] In this technical solution, the external cleaning part includes a second bearing ring and a third bearing ring. The second bearing ring and the third bearing ring are respectively fixed to the top and bottom of at least two guide frames, and both the second bearing ring and the third bearing ring are sleeved around the filter basket. The inner ring sidewall of the second bearing ring is equipped with an annular brush that overlaps with the outer wall of the filter basket, and the inner ring sidewall of the third bearing ring is fixed with a plurality of transmission magnetic blocks distributed in a ring array. The guide frame is slidably sleeved on the surface of the second vertical shaft, and the second vertical shaft is fixed on the inner wall of the housing.

[0021] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0022] The positive and progressive effects of this invention are as follows: This application incorporates a side-cleaning component. As the component moves axially along the filter basket, it removes impurities adhering to the basket's surface and guides and collects these detached impurities, creating a continuous "cleaning-collecting-receiving" process. This reduces the likelihood of impurities re-adhering to the filter basket surface. Simultaneously, the side-cleaning component features magnetic adsorption, attracting and collecting magnetic particles and iron-containing impurities from the gas. This allows some impurities to be captured before reaching the filter basket, reducing its filtration load. The combined effect of mechanical cleaning and magnetic adsorption not only improves the filter basket's flow capacity and filtration stability but also extends its lifespan and reduces equipment downtime for maintenance. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the external structure of the present invention; Figure 2 For the present invention Figure 1 A structural diagram from another perspective; Figure 3 For the present invention Figure 1 A front view structural diagram; Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at point AA; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point I; Figure 6 This is a schematic diagram of the side dust collection ring of the present invention; Figure 7 This is a schematic diagram showing the state of the side dust collection component of the present invention when it moves to the middle of the filter basket; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point J; Figure 9 For the present invention Figure 7 A magnified schematic diagram of the structure at point K; Figure 10 This is a schematic diagram showing the positional relationship between the side cleaning component and the filter basket of the present invention; Figure 11 For the present invention Figure 10 A schematic diagram of the structure viewed from below; Figure 12 For the present invention Figure 10 A top-view structural diagram; Figure 13 For the present invention Figure 12 Schematic diagram of the cross-sectional structure at BB; Figure 14 For the present invention Figure 13 A magnified schematic diagram of the structure at point L; Figure 15 For the present invention Figure 12 A schematic diagram of the cross-sectional structure at point CC; Figure 16 For the present invention Figure 15 A magnified schematic diagram of the structure at point M; Figure 17 This is a schematic diagram of the state after the second cover plate of the present invention has been moved up.

[0024] Explanation of reference numerals in the attached figures 1. Housing; 11. Sealing cover; 12. Inlet pipe; 13. Outlet pipe; 2. Drive unit; 21. Fixing frame; 22. Self-driving rod; 23. Moving rod; 3. Magnetic suction part; 31. First bearing ring; 311. External driving magnetic block; 32. Guide sleeve; 33. First vertical shaft; 4. Filter basket; 41. Overlapping ring plate; 5. External cleaning unit; 51. Second vertical shaft; 52. Guide frame; 53. Second bearing ring; 54. Brush; 55. Third bearing ring; 56. Transmission magnetic block; 6. Inner dust collection section; 61. Side dust collection ring; 611. Dust collection chamber; 612. Guide groove; 613. Dust collection through groove; 62. Driven magnetic block; 63. Flow guide cover; 64. Limiting component; 65. Guide plate; 66. First cover plate; 661. Auxiliary plate; 67. Transmission component; 671. First guide rail; 672. First slider; 673. Connecting rod; 674. Second slider; 675. Second guide rail; 676. Synchronizing rod; 7. Lower cleaning assembly; 71. Lower dust collection ring; 72. Second cover plate; 73. Guide ring; 74. Guide vertical shaft; 75. Fixing rod; 76. Transmission plate; 77. Drive ring; 78. Transmission rod; 79. Guide block; 791. Telescopic cover. Detailed Implementation

[0025] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0026] like Figure 1 and Figure 2 As shown, the gas pipeline filtration and separation device includes a cylindrical shell 1, a detachable sealing cover 11 fixed to the top of the shell 1, an inlet pipe 12 and an outlet pipe 13 respectively provided at the top and bottom of the shell 1, and a cylindrical filter basket 4 provided inside the shell 1, which is sealed to the inner wall of the shell 1 on one side of the bottom of the inlet pipe 12. The side cleaning component is located on the annular curved surface of the filter basket 4 and in the inner cavity of the housing 1. When the side cleaning component moves along the axial direction of the filter basket 4, it can cause the impurities attached to the filter basket 4 to detach from the filter basket 4 and guide and collect them after they are detached. The side cleaning component adsorbs impurities in the gas through magnetic force. The drive assembly is magnetically connected to the side cleaning assembly and is used to drive the side cleaning assembly to move axially along the housing 1.

[0027] The top of the filter basket 4 is fixed with an overlapping ring plate 41 of an annular structure, which overlaps with the annular protrusion on the inner wall of the housing 1 on one side of the bottom of the air intake pipe 12. The top of the filter basket 4 is fixed with a handle.

[0028] Example 1 In this embodiment, as Figure 2As shown, the drive assembly includes a drive unit 2 and a magnetic suction unit 3. The drive unit 2 is disposed on the housing 1, and the drive unit 2 pushes the magnetic suction unit 3 to move along the axial direction of the housing 1. The moving magnetic suction unit 3 pushes the side cleaning assembly to move synchronously through magnetic force.

[0029] The drive unit 2 includes a self-driving rod 22 arranged along the axial direction of the housing 1. The self-driving rod 22 is fixedly mounted on a fixing frame 21 on the outer wall of the housing 1. The end of the moving rod 23 at the output end of the self-driving rod 22 is fixedly connected to the magnetic suction unit 3.

[0030] The magnetic suction part 3 includes a first bearing ring 31, which is sleeved around the periphery of the housing 1. Multiple external driving magnetic blocks 311 are fixed on the inner ring sidewall of the first bearing ring 31 in a ring array. At least two guide sleeves 32 arranged in a ring array are fixed on the outer ring sidewall of the first bearing ring 31. The guide sleeves 32 are slidably sleeved on the surface of the first vertical shaft 33 arranged along the axial direction of the housing 1. Both ends of the first vertical shaft 33 are fixed on the outer wall of the housing 1. The first bearing ring 31 is connected to the output end of the drive unit 2.

[0031] Specifically, the end of the movable rod 23 is fixedly connected to the outer ring side wall of the first bearing ring 31.

[0032] The drive rod drives the moving rod 23 to move, and the moving moving rod 23 pushes the first bearing ring 31 to move along the axial direction of the housing 1. At this time, the guide sleeve 32 slides synchronously on the first vertical shaft 33, and plays a guiding role through the sliding connection between the guide sleeve 32 and the first vertical shaft 33.

[0033] As the first bearing ring 31 moves, the external driving magnetic block 311 fixed on the first bearing ring 31 also moves synchronously. The moving external driving magnetic block 311 attracts each other through magnetic force, driving the side cleaning component inside the housing 1 to move.

[0034] The self-driven rod 22 is preferably one of an electric actuator and a hydraulic rod.

[0035] Example 2 like Figures 4-6 As shown, the side cleaning assembly includes an outer cleaning part 5 and an inner dust collection part 6 respectively disposed outside and inside the filter basket 4. The outer cleaning part 5 and the inner dust collection part 6 are connected by magnetic transmission. The outer cleaning part 5 is connected to the drive assembly. The inner dust collection part 6 adsorbs impurities in the gas through magnetic force. The inner dust collection section 6 has a ring structure and is arranged adjacent to the inner wall of the filter basket 4. The inner dust collection section 6 can switch between a retracted state and an extended state as it moves with the drive component. When the inner dust collection section 6 is in the extended state, it forms a collection space for receiving impurities. When it is in the retracted state, it reduces the occupation of the internal circulation space of the filter basket 4.

[0036] The inner dust collection section 6 unfolds during the upward movement and retracts during the descent to the initial position.

[0037] This application incorporates an inner dust collection section 6, which is magnetically connected to the outer cleaning section 5. This allows the outer cleaning section 5 to move synchronously with the inner dust collection section 6 located inside the filter basket 4 as the outer cleaning section 5 moves. This eliminates the need for an additional through-type transmission structure on the filter basket 4, thus ensuring the structural integrity and sealing reliability of the filter basket 4. During its movement, the inner dust collection section 6 receives and collects impurities cleaned by the outer cleaning section 5, reducing the likelihood of impurities redispersing or re-adhering to the surface of the filter basket 4, thereby improving impurity collection efficiency.

[0038] When the inner dust collection section 6 is in the extended state, it can cooperate with the flow guiding structure to form a flow guiding space towards the dust collection area, so that impurities that have detached from the filter basket 4 can be gathered into the inner dust collection section 6 under the action of airflow, thereby increasing the probability of impurities entering the collection space. After the dust collection is completed, the inner dust collection section 6 can be restored to the retracted state to reduce flow resistance and avoid occupying the effective flow space inside the filter basket 4 for a long time, thereby improving the overall operating efficiency of the device.

[0039] The inner dust collection section 6 includes a side dust collection ring 61. The outer ring sidewall of the side dust collection ring 61 is attached to the inner wall of the filter basket 4. A driven magnetic block 62 with a ring structure is embedded and fixed on the outer wall of the side dust collection ring 61. The lower half of the side dust collection ring 61 is a ring dust collection end with a rectangular cross section, and the upper half is a ring guide end with a right-angled triangle cross section. The dust collection end forms an annular dust collection chamber 611 inside, and several through holes are provided on the side wall of the dust collection chamber 611 to facilitate the flow of gas from the dust collection chamber 611 during dust collection. The guide end is connected to the dust collection chamber 611 through the groove structure on its surface, and the groove structure is covered with an expandable and retractable guide cover plate 63.

[0040] The bottom end of the flow guide cover 63 is rotatably connected to the bottom side wall of the side dust collection ring 61, and a first coil spring is provided at the rotatable connection between the flow guide cover 63 and the side dust collection ring 61; a limiting member 64 corresponding to the flow guide cover 63 and capable of pushing the flow guide cover 63 to rotate and cover the surface of the trough structure is fixed on the circular inner wall at the bottom of the filter basket 4.

[0041] Specifically, the limiting member 64 includes a vertical rod and a rotating roller. The vertical rod is fixed to the bottom circular side wall of the inner cavity of the filter basket 4, and a rotating roller is installed at the top of the vertical rod. The rotating roller overlaps with the outer wall of the guide cover 63, which has been lowered thereto, and pushes the guide cover 63 to rotate towards the guide end until it covers the trough structure. During the above process, the rotating roller rotates on the guide cover 63.

[0042] When the side cleaning component moves to the bottom area of ​​the filter basket 4 under the drive of the drive component, the guide cover 63 contacts the corresponding limiting member 64. Under the action of the limiting member 64, the guide cover 63 gradually rotates from the state of being spread away from the side of the trough structure to the side of the trough structure until the guide cover 63 covers the opening of the trough structure, thereby switching the inner dust collection part 6 from the dust collection state to the retracted state, so as to reduce the occupation of the internal flow space of the filter basket 4.

[0043] During the above process, the first coil spring deforms, accumulating the elastic potential energy required to push the guide cover 63 to unfold.

[0044] The first coil spring is used to limit the extreme angle of rotation and unfolding of the guide cover 63. Alternatively, a limiting rod, limiting block, or other conventional mechanical limiting structure can be used to limit the unfolding angle of the guide cover 63 to prevent excessive unfolding of the guide cover 63 and thus affecting the flow of gas within the cavity of the housing 1. The specific installation position, shape, and dimensions of the aforementioned limiting structure can all adopt conventional designs in the art, and can be set according to actual needs; therefore, they will not be described in detail here.

[0045] When the side cleaning assembly moves axially along the filter basket 4 and collects dust, the guide cover 63 is in the unfolded state. The guide cover 63 cooperates with the dust collection end and forms a guide cavity close to the inner wall of the filter basket 4. After the outer cleaning part 5 brushes away the impurities from the outer wall of the filter basket 4, the impurities pass through the filter basket 4 and enter the guide cavity. Under the guidance of the guide cavity, they converge towards the dust collection end, thereby improving the collection efficiency of impurities and reducing the possibility of impurities re-diffusing or re-attaching to the surface of the filter basket 4.

[0046] The trough structure includes at least two guide troughs 612 opened on the guide end, and the guide troughs 612 are arranged in a ring array. The guide troughs 612 and the dust collection chamber 611 are connected by a dust collection channel 613. The guide cover plate 63 can cover the guide troughs 612. The inner ring sidewall of the driven magnetic block 62 protrudes outward through the guide end between two adjacent guide grooves 612 and is flush with the sidewall of the guide end, for adsorbing impurities in the gas.

[0047] like Figure 15 As shown, preferably, two guide plates 65 arranged in a "V" shape are fixed on the inner wall of the guide groove 612, and the bottom ends of the two guide plates 65 extend to the top of the dust collection groove 613.

[0048] like Figures 14-16 As shown, the surface of the dust collection channel 613 is covered with a first cover plate 66. The first cover plate 66 is connected to the guide cover plate 63 through two opposite transmission members 67. When the guide cover plate 63 is unfolded, the first cover plate 66 is driven to detach from the surface of the dust collection channel 613 through the transmission members 67.

[0049] An auxiliary guide plate 661, which is distributed along the axial direction of the shell 1, is fixed on one side of the first cover plate 66 near the outer ring of the side dust collection ring 61.

[0050] The transmission component 67 includes a first guide rail 671, which is fixed on the outer wall of the guide groove 612 on one side of the dust collection channel 613. A first slider 672 is slidably connected to the surface of the first guide rail 671. One end of the connecting rod 673 is rotatably connected to the surface of the first slider 672. The other end of the connecting rod 673 is rotatably connected to the second slider 674. The second slider 674 is slidably connected to the surface of the second guide rail 675. The second guide rail 675 is fixed on the outer wall of the guide cover plate 63. The first slider 672 is fixed to the first cover plate 66 by the synchronizing rod 676, and the connecting rod 673 has an "L" shaped structure.

[0051] When the guide cover 63 rotates by the same angle, the farther the corresponding end of the connecting rod 673 is from the rotational connection between the guide cover 63 and the side dust collection ring 61 in the initial state, the longer the distance the first cover 66 is moved by the transmission component 67.

[0052] When the guide cover 63 rotates, it drives the first slider 672 to slide on the first guide rail 671 via the connecting rod 673, thereby moving the first cover 66. During the above process, the second slider 674 also makes a certain length of sliding displacement on the second guide rail 675.

[0053] Example 3 like Figure 7 and Figure 9 As shown, it also includes a lower cleaning component 7 disposed on the bottom circular sidewall of the inner cavity of the filter basket 4. The lower cleaning component 7 includes a lower dust collection ring 71, which is fixed at the edge of the bottom circular sidewall of the inner cavity of the filter basket 4 and is coaxially arranged with the filter basket 4. The surface of the lower dust collection ring 71 is provided with through holes, and the lower dust collection ring 71 penetrates the bottom sidewall of the filter basket 4. The inner ring sidewall of the lower dust collection ring 71 located in the inner cavity of the filter basket 4 is provided with multiple inlet through slots distributed in a ring array. It also includes a guide block 79 located at the center of the circular sidewall at the bottom of the inner cavity of the filter basket 4. The guide block 79 has a conical structure, and the conical surface at the top of the guide block 79 guides part of the gas to flow toward the edge of the circular sidewall at the bottom of the inner cavity of the filter basket 4, so as to blow impurities to the inlet channel.

[0054] The lower cleaning assembly 7 also includes an adjustment section, which can be driven by the initially upward-moving inner dust collection section 6 to release the seal on the inlet channel and drive the guide block 79 to move upward. The upward-moving guide block 79 guides some of the gas to the bottom of the filter basket 4 cavity, further away from the central area and closer to the outer peripheral area of ​​the inner wall of the filter basket 4, so as to drive the impurities deposited at the bottom of the filter basket 4 to transfer to the inlet channel, thereby improving the collection efficiency of impurities.

[0055] The adjustment section includes a second cover plate 72 covering the inlet channel. The second cover plate 72 can slide along the axial direction of the housing 1. An "L"-shaped fixing rod 75 is fixed on the outer wall of the second cover plate 72. The end of the fixing rod 75 extends to the top of the lower dust collection ring 71, and a transmission plate 76 is rotatably connected to the end. A second coil spring is provided at the rotatable connection between the transmission plate 76 and the end of the fixing rod 75. When the second coil spring does not deform, the transmission plate 76 is arranged in the horizontal direction. The bottom of the inner dust collection section 6 is fixed with a drive ring 77 that can engage with the transmission plate 76; The second cover plate 72 drives the guide block 79 to move synchronously via the transmission rod 78.

[0056] Guide rings 73 are fixed on both sides of the second cover plate 72. The guide rings 73 are slidably sleeved on the guide vertical shaft 74. A protruding plate is fixed on the top of the guide vertical shaft 74, and the guide vertical shaft 74 is fixed on the bottom side wall of the inner cavity of the filter basket 4.

[0057] The second cover plate 72 can slide at the inlet slot by sliding the guide ring 73 on the guide vertical shaft 74.

[0058] When the guide ring 73 moves up to the protrusion, the second cover plate 72 moves up to its limit position.

[0059] Specifically, the drive ring 77 is fixed on the bottom side wall of the lower dust collection ring 71. When the inner dust collection part 6 is in the initial position at the bottom of the filter basket 4, the drive ring 77 is located at the bottom of the transmission plate 76.

[0060] Specifically, the limiting member 64 is fixed on the top side wall of the lower dust collection ring 71 or on the bottom side wall of the inner cavity of the filter basket 4 on one side of the inner ring side wall of the lower dust collection ring 71.

[0061] like Figure 17 As shown, when the inner dust collection section 6 moves upward from its initial position at the bottom of the filter basket 4, the drive ring 77 moves upward synchronously under the drive of the inner dust collection section 6. The drive ring 77 drives the fixed rod 75 to move synchronously through the transmission plate 76, thereby driving the second cover plate 72 to move upward, so that the second cover plate 72 gradually separates from the inlet channel, thereby releasing the closure of the inlet channel. At the same time, the second cover plate 72 drives the guide block 79 to move upward synchronously through the transmission rod 78, so as to change the flow path of the gas in the bottom area of ​​the inner cavity of the filter basket 4.

[0062] During the above process, the second coil spring does not deform, and the transmission plate 76 remains horizontally distributed until the second cover plate 72 moves upward to its limit position, while the inner dust collection part 6 continues to move upward. At this point, the second coil spring deforms, and the transmission plate 76 rotates until it disengages from the drive ring 77. After the transmission plate 76 disengages from the drive ring 77, the second cover plate 72 and the guide block 79 fall back down, thus completing the reset.

[0063] As the inner dust collection section 6 moves down to its initial position, the drive ring 77 pushes the transmission plate 76 to reverse until the drive ring 77 has completely passed the transmission plate 76 and is located at the bottom of the transmission plate 76.

[0064] Under normal filtration conditions, the second cover plate 72 covers the inlet channel, keeping the inlet channel closed and preventing the gas from entering the lower dust collection ring 71. This avoids the gas from bypassing the lower dust collection ring 71, which helps to improve the flow path and filtration effect of the gas through the filter basket 4.

[0065] When impurity collection is required, the inner dust collection section 6 begins to move upward and releases the seal of the inlet channel, simultaneously causing the guide block 79 to move upward. Since the guide block 79 is preferably conical in shape, its upward movement places it at a higher position at the bottom of the filter basket 4's inner cavity. This allows some of the combustion gas to be guided to the outer periphery of the filter basket 4's inner cavity, away from the central area and closer to the inner wall. This causes impurities that would normally settle at the bottom edge of the filter basket 4 to be propelled along the bottom by the airflow. As the inlet channel is opened, impurities can more easily converge into the inlet channel and enter the lower dust collection ring 71, achieving active guidance and collection of impurities deposited at the bottom of the filter basket 4, thereby reducing impurity retention and improving the overall dust collection effect.

[0066] Preferably, the transmission rod 78 has a "U" shaped structure. One end of the transmission rod 78 is fixedly connected to at least one of the second cover plates 72. The other end of the transmission rod 78 passes through the bottom side wall of the filter basket 4 twice and is fixed to the bottom side wall of the guide block 79. A cylindrical telescopic cover 791 is fixed at the edge of the bottom side wall of the guide block 79, and the bottom end of the telescopic cover 791 covers the sliding connection between the transmission rod 78 and the bottom of the filter basket 4.

[0067] Example 4 The external cleaning part 5 includes a second support ring 53 and a third support ring 55. The second support ring 53 and the third support ring 55 are respectively fixed to the top and bottom of at least two guide frames 52, and both the second support ring 53 and the third support ring 55 are sleeved around the filter basket 4. The inner ring side wall of the second support ring 53 is equipped with an annular brush 54 that overlaps with the outer wall of the filter basket 4. The inner ring side wall of the third support ring 55 is fixed with a plurality of transmission magnetic blocks 56 arranged in a ring array. The guide frame 52 is slidably sleeved on the surface of the second vertical shaft 51, and the second vertical shaft 51 is fixed on the inner wall of the housing 1.

[0068] The external driving magnetic block 311, the transmission magnetic block 56, and the driven magnetic block 62 are magnetically attracted to each other, and the widths of the external driving magnetic block 311, the transmission magnetic block 56, and the driven magnetic block 62 gradually decrease along the axial direction of the housing 1. By increasing the size of the external driving magnetic block 311 along the axial direction of the housing 1, the external driving magnetic block 311 can generate a magnetic force on the transmission magnetic block 56 and the driven magnetic block 62 within a larger axial range, thereby maintaining a more stable magnetic transmission effect during the movement of the side cleaning assembly.

[0069] Meanwhile, when the guide cover 63 disengages from the rotating roller on the limiting member 64, the external driving magnetic block 311 can still continuously apply magnetic force to the driven magnetic block 62 so that the guide cover 63 can unfold smoothly under the action of the first coil spring; and when the side cleaning component moves back to the initial position, the external driving magnetic block 311 can also form a magnetic engagement with the driven magnetic block 62 in advance, making it easier for the guide cover 63 to re-contact the rotating roller and complete the reset, thereby improving the stability of the opening and closing process of the guide cover 63.

[0070] Example 5 In this embodiment, the bottom sidewalls of the side dust collection ring 61 and the lower dust collection ring 71 can be set as detachable cover plates, which makes it easier to clean the impurities inside the side dust collection ring 61 and the lower dust collection ring 71.

[0071] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A gas pipeline filtration and separation device, comprising a housing (1), wherein a detachable sealing cover (11) is fixed to the top of the housing (1), an inlet pipe (12) and an outlet pipe (13) are respectively provided at the top and bottom of the housing (1), and a cylindrical filter basket is provided inside the housing (1), wherein the filter basket is sealed to the inner wall of the housing (1) on one side of the bottom of the inlet pipe (12), characterized in that: Side cleaning component, the side cleaning component is disposed at the annular curved surface of the filter basket and located in the inner cavity of the housing (1). When the side cleaning component moves along the axial direction of the filter basket, it can cause the impurities attached to the filter basket to detach from the filter basket and guide and collect them after they detach. The side cleaning component adsorbs the impurities in the gas through magnetic force. A drive assembly is connected to the side cleaning assembly via magnetic force and is used to drive the side cleaning assembly to move axially along the housing (1); The side cleaning assembly includes an outer cleaning part (5) and an inner dust collection part (6) respectively disposed outside and inside the filter basket. The outer cleaning part (5) and the inner dust collection part (6) are connected by magnetic transmission. The outer cleaning part (5) is connected to the drive assembly. The inner dust collection part (6) adsorbs impurities in the gas through magnetic force. The inner dust collection part (6) has a ring structure and is arranged adjacent to the inner wall of the filter basket. The inner dust collection part (6) can switch between a retracted state and an extended state as it moves with the drive component. When the inner dust collection part (6) is in the extended state, it forms a collection space for receiving impurities. The drive assembly includes a drive part (2) and a magnetic suction part (3). The drive part (2) is disposed on the housing (1), and the drive part (2) pushes the magnetic suction part (3) to move along the axial direction of the housing (1). The moving magnetic suction part (3) pushes the side cleaning assembly to move synchronously through magnetic force. The magnetic suction part (3) includes a first bearing ring (31), which is sleeved around the periphery of the housing (1). Multiple external driving magnetic blocks (311) are fixed on the inner ring sidewall of the first bearing ring (31) in a ring array. At least two guide sleeves (32) arranged in a ring array are fixed on the outer ring sidewall of the first bearing ring (31). The guide sleeves (32) are slidably sleeved on the surface of the first vertical shaft (33) arranged along the axial direction of the housing (1). Both ends of the first vertical shaft (33) are fixed on the outer wall of the housing (1). The first bearing ring (31) is connected to the output end of the drive unit (2); The inner dust collection part (6) includes a side dust collection ring (61). The outer ring sidewall of the side dust collection ring (61) is attached to the inner wall of the filter basket. A driven magnetic block (62) with a ring structure is embedded and fixed on the outer wall of the dust collection ring. The lower half of the side dust collection ring (61) is a ring dust collection end with a rectangular cross section, and the upper half is a ring guide end with a right-angled triangle cross section. The dust collection end forms an annular dust collection chamber (611) inside, and the guide end is connected to the dust collection chamber (611) through a groove structure on its surface. The groove structure is covered with an expandable and retractable guide cover plate (63). It includes at least two guide grooves (612) opened on the guide end, and the guide grooves (612) are arranged in a ring array. The guide grooves (612) and the dust collection chamber (611) are connected by a dust collection channel (613). The guide cover plate (63) can cover the guide grooves (612). The surface of the dust collection channel (613) is covered with a first cover plate (66). The first cover plate (66) is connected to the guide cover plate (63) through two opposite transmission components (67). When the guide cover plate (63) is unfolded, the first cover plate (66) is driven to detach from the surface of the dust collection channel (613) through the transmission components (67). The bottom end of the flow guide cover (63) is rotatably connected to the bottom side wall of the side dust collection ring (61), and a first coil spring is provided at the rotatable connection between the flow guide cover (63) and the side dust collection ring (61); a limiting member (64) corresponding to the flow guide cover (63) and capable of pushing the flow guide cover (63) to rotate and cover the surface of the trough structure is fixed on the circular inner wall at the bottom of the filter basket (4). When the side cleaning component moves to the bottom area of ​​the filter basket (4) under the drive of the drive component, the guide cover (63) contacts the corresponding limiting member (64). Under the action of the limiting member (64), the guide cover (63) gradually rotates from the state of unfolding away from the side of the trough structure to the side of the trough structure until the guide cover (63) covers the opening of the trough structure, thereby switching the inner dust collection part (6) from the dust collection state to the retracted state. When the flow guide cover (63) is disengaged from the limiting member (64), the external driving magnetic block (311) can still continuously apply magnetic force to the driven magnetic block (62) so that the flow guide cover (63) can be smoothly unfolded under the action of the first coil spring. The external cleaning part (5) includes a second support ring (53) and a third support ring (55). The second support ring (53) and the third support ring (55) are respectively fixed to the top and bottom of at least two guide frames (52), and the second support ring (53) and the third support ring (55) are both sleeved around the periphery of the filter basket. A ring-shaped brush (54) that overlaps with the outer wall of the filter basket is installed on the inner ring side wall of the second support ring (53). A plurality of transmission magnetic blocks (56) arranged in a ring array are fixed on the inner wall side wall of the third support ring (55). The guide frame (52) is slidably sleeved on the surface of the second vertical shaft (51), and the second vertical shaft (51) is fixed on the inner wall of the housing (1).

2. The gas pipeline filtration and separation device as described in claim 1, characterized in that: It also includes a lower cleaning assembly (7) provided on the bottom circular side wall of the filter basket cavity. The lower cleaning assembly (7) includes a lower dust collection ring (71). The lower dust collection ring (71) is fixed at the edge of the bottom circular side wall of the filter basket cavity. The lower dust collection ring (71) penetrates the bottom side wall of the filter basket, and multiple inlet slots are provided on the inner ring side wall of the lower dust collection ring (71) located in the filter basket cavity in a ring array. It also includes a flow guide block (79) located at the center of the circular sidewall at the bottom of the filter basket cavity. The flow guide block (79) has a conical structure, and the conical surface at the top of the flow guide block (79) guides part of the gas to flow toward the edge of the circular sidewall at the bottom of the filter basket cavity.

3. The gas pipeline filtration and separation device as described in claim 2, characterized in that: The lower cleaning assembly (7) also includes an adjustment section that can be driven by the initially upward-moving inner dust collection section (6) to release the closure of the inlet channel and drive the guide block (79) to move upward; the upward-moving guide block (79) guides part of the gas to the bottom of the filter basket cavity, further away from the central area and closer to the outer periphery of the filter basket inner wall.

4. The gas pipeline filtration and separation device as described in claim 3, characterized in that: The adjustment part includes a second cover plate (72) covering the inlet channel. The second cover plate (72) can slide along the axial direction of the housing (1). An "L"-shaped fixing rod (75) is fixed on the outer wall of the second cover plate (72). The end of the fixing rod (75) extends to the top of the lower dust collection ring (71), and a transmission plate (76) is rotatably connected to the end. A second coil spring is provided at the rotatable connection between the transmission plate (76) and the end of the fixing rod (75). The bottom of the inner dust collection part (6) is fixed with a drive ring (77) that can overlap with the transmission plate (76). The second cover plate (72) drives the guide block (79) to move synchronously via the transmission rod (78).

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