Filtering mechanism for natural gas conveying pipeline

Abstract

The utility model discloses a filtering mechanism for a natural gas conveying pipeline, which comprises a valve body, a gas passing hole piece fixedly connected with the middle of the inner wall of the valve body, a small support fixedly connected with the inside of the gas passing hole piece, a large support fixedly connected with the inner wall of one end of the valve body, mounting grooves arranged on two sides of the inner wall of the valve body, and a threaded sleeve arranged on the top of the valve body. The interior of the threaded sleeve is in threaded connection with a switch assembly, a valve plug assembly is arranged between the large support and the small support, the interior of each installation groove is connected with a filtering assembly in a clamped mode, and one side of each installation groove is provided with a clamping groove. The device is divided into the switch assembly, the valve plug assembly, the filtering assembly and the bayonet lock assembly, a valve of the natural gas conveying pipeline and a filtering mechanism are integrated together, on one hand, the tightness between all the structures can be enhanced, and on the other hand, the filtering structure is convenient to disassemble, install, replace or clean a filtering piece through an ingenious clamping structure.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas transportation filtration, in particular to a filtering mechanism for a natural gas transportation pipeline. Background Technique

[0002] Natural gas refers to all gases naturally present in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. It is also an essential thing in people's lives. Therefore, it is crucial to transport natural gas, which can be transported through specialized natural gas transportation pipelines. However, natural gas itself will carry some impurity particles, so it is necessary to filter out the impurities during transportation. Most existing natural gas pipelines use ordinary filter screens for filtration; for example, a natural gas transportation pipeline with a filtering mechanism with the application number CN220727951U. In this natural gas transportation pipeline with a filtering mechanism, larger impurities are restricted between the filter plate and the partition by the filter plate after the natural gas passes through the air inlet hole, and finer impurities are adsorbed by the filter sponge after passing through the filter plate, realizing the full filtration of natural gas impurities. The filtering mechanisms of the above common natural gas pipelines still have deficiencies:

[0003] The disassembly and assembly of the filtering mechanism are relatively complex. It is inconvenient to clean when the filter parts need to be cleaned, which is time-consuming and laborious, and the structures are not compact enough. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filtering mechanism for a natural gas transportation pipeline, so as to solve the problems proposed in the above background technique that the disassembly and assembly of the filtering mechanism are relatively complex, it is inconvenient to clean when the filter parts need to be cleaned, which is time-consuming and laborious, and the structures are not compact enough.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A filtering mechanism for a natural gas transportation pipeline, including a valve body. The middle part of the inner wall of the valve body is fixedly connected with a gas passing hole plate. A small bracket is fixedly connected inside the gas passing hole plate. The inner wall of one end of the valve body is fixedly connected with a large bracket. Installation grooves are opened on both sides of the inner wall of the valve body. A threaded sleeve is arranged on the top of the valve body. A switch component is threadedly connected inside the threaded sleeve. A valve plug component is arranged between the large bracket and the small bracket. A filtering component is snap-fitted inside the installation groove. A clamping groove is opened on one side of each of the two installation grooves. A clamping pin component is arranged inside the clamping groove, which is beneficial to integrating the valve of the natural gas transportation pipeline with the filtering mechanism and enhancing the tightness between the structures.

[0006] Preferably, the switch component includes a screw rod. A rotating handle is fixedly connected to the top of the screw rod. A shaft rod is fixedly connected to the bottom of the screw rod. One end of the shaft rod is rotatably connected with a toothed plate, which is beneficial to conveniently opening and closing the natural gas passage.

[0007] Preferably, the valve plug assembly includes a threaded rod, a valve flap is threadedly connected to the surface of the threaded rod, a sealing ring is provided on the surface of the valve flap, a driven gear is provided on one side of the surface of the threaded rod, and both ends of the threaded rod are rotatably connected to a bushing, which is beneficial to realize opening and closing by the way of the valve flap moving to block the air vent plate.

[0008] Preferably, the filtering assembly includes a filtering ring, perforated clamping plates are fixedly connected to both sides of the filtering ring, and a filter screen is arranged inside the filtering ring, which is beneficial to filter out the impurity particles carried by the natural gas.

[0009] Preferably, the pin assembly includes a fixed hole plate, a clamping rod is slidably connected inside the fixed hole plate, a limiting plate is arranged on the surface of one end of the clamping rod, and a return spring is sleeved on the surface of the clamping rod, which is beneficial to facilitate the disassembly, installation, replacement or cleaning of the filter element by means of a clever clamping structure for the filtering structure.

[0010] Preferably, the surface of the screw rod is threadedly connected to the inside of the threaded sleeve, and one side of the toothed plate is meshed with one side of the driven gear, which is beneficial to control the opening and closing of the valve through gear transmission.

[0011] Preferably, one end of the clamping rod is clamped inside the perforated clamping plate, and the surface of the limiting plate is slidably connected to the inside of the clamping groove.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: integrating the valve of the natural gas transmission pipeline with the filtering mechanism can, on the one hand, enhance the tightness between the structures, and on the other hand, facilitate the disassembly, installation, replacement or cleaning of the filter element by means of a clever clamping structure for the filtering structure. Description of the Drawings

[0013] Figure 1 It is the front structure diagram of the filtering mechanism for the natural gas transmission pipeline of the present utility model;

[0014] Figure 2 It is the structure diagram of the switch assembly of the filtering mechanism for the natural gas transmission pipeline of the present utility model;

[0015] Figure 3 It is the structure diagram of the valve plug assembly of the filtering mechanism for the natural gas transmission pipeline of the present utility model;

[0016] Figure 4 It is the structure diagram of the filtering assembly of the filtering mechanism for the natural gas transmission pipeline of the present utility model;

[0017] Figure 5 It is the structure diagram of the pin assembly of the filtering mechanism for the natural gas transmission pipeline of the present utility model;

[0018] Figure 6This is the back structure diagram of the filtering mechanism for the natural gas transmission pipeline of the present utility model.

[0019] In the figure: 1, valve body; 2, gas passing hole plate; 3, large bracket; 4, small bracket; 5, installation groove; 6, switch assembly; 61, rotating handle; 62, screw rod; 63, shaft rod; 64, toothed plate; 7, valve plug assembly; 71, valve flap; 72, threaded rod; 73, sealing ring; 74, driven gear; 75, shaft sleeve; 8, filtering assembly; 81, filtering ring; 82, filter net; 83, perforated clamping plate; 9, pin assembly; 91, clamping rod; 92, fixed orifice plate; 93, return spring; 94, limiting plate; 10, threaded sleeve; 11, clamping groove. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] Please refer to Figures 1-6 , the present utility model provides a filtering mechanism for a natural gas transmission pipeline, including a valve body 1. A gas passing hole plate 2 is fixedly connected to the middle of the inner wall of the valve body 1. A small bracket 4 is fixedly connected to the inside of the gas passing hole plate 2. A large bracket 3 is fixedly connected to the inner wall of one end of the valve body 1. Installation grooves 5 are opened on both sides of the inner wall of the valve body 1. A threaded sleeve 10 is provided at the top of the valve body 1. A switch assembly 6 is threadedly connected to the inside of the threaded sleeve 10. A valve plug assembly 7 is provided between the large bracket 3 and the small bracket 4. A filtering assembly 8 is snap-fitted into the installation groove 5. Clamping grooves 11 are opened on one side of the two installation grooves 5. A pin assembly 9 is provided inside the clamping groove 11.

[0022] Refer to Figure 2 and Figure 3 , further, the switch assembly 6 includes a screw rod 62. A rotating handle 61 is fixedly connected to the top of the screw rod 62. A shaft rod 63 is fixedly connected to the top of the screw rod 62. One end of the shaft rod 63 is rotatably connected to a toothed plate 64. The valve plug assembly 7 includes a threaded rod 72. A valve flap 71 is threadedly connected to the surface of the threaded rod 72. A sealing ring 73 is provided on the surface of the valve flap 71. A driven gear 74 is provided on one side of the surface of the threaded rod 72. Both ends of the threaded rod 72 are rotatably connected to a shaft sleeve 75;

[0023] During use, rotate the rotary handle 61 to drive the screw rod 62 to rotate, causing the screw rod 62 to rotate inside the threaded sleeve 10. At this time, the screw rod 62 moves in the vertical direction. One side of the toothed plate 64 is meshed and connected with one side of the driven gear 74, and one end of the toothed plate 64 is rotatably connected to the shaft rod 63. Therefore, when the screw rod 62 moves downward, the toothed plate 64 moves downward to drive the driven gear 74. At this time, the threaded rod 72 rotates, and the valve flap 71 threadedly connected to the threaded rod 72 moves to one side to block or open the natural gas passage hole on the gas passing hole plate 2. The sealing ring 73 can achieve a better sealing effect. The two shaft sleeves 75 are respectively installed on the large bracket 3 and the small bracket 4.

[0024] Refer to Figure 4 and Figure 5 , the filtering assembly 8 includes a filtering ring 81. Porous clamping plates 83 are fixedly connected to both sides of the filtering ring 81. A filter screen 82 is arranged inside the filtering ring 81. The pin assembly 9 includes a fixed hole plate 92. A clamping rod 91 is slidably connected inside the fixed hole plate 92. A limiting plate 94 is arranged on the surface of one end of the clamping rod 91. A return spring 93 is sleeved on the surface of the clamping rod 91;

[0025] During use and installation, align the porous clamping plate 83 with the installation groove 5. The installation groove 5 is an L-shaped groove. Push the filtering assembly 8 along the installation groove 5 inward. When reaching the end, rotate it to one side. Then the porous clamping plate 83 squeezes the clamping rod 91 to one side, and the limiting plate 94 moves to one side and compresses the return spring 93. When the porous clamping plate 83 rotates to the position, the clamping rod 91 aligns with the hole on the porous clamping plate 83, and the return spring 93 resets. The clamping rod 91 inserts into the inside of the porous clamping plate 83 to realize the limit fixation of the filtering assembly 8. When disassembly is required, pull the clamping rods 91 on both sides to compress the return spring 93, release the clamping structure between the clamping rod 91 and the porous clamping plate 83, and take out the filtering assembly 8 for processing. It is convenient, fast, time-saving and labor-saving. The porous clamping plate 83 is fixedly installed inside the clamping groove 11, and the limiting plate 94 is slidably connected inside the clamping groove 11.

[0026] When the embodiment of the present application is in use: The filtering mechanism for natural gas transmission pipelines, which integrates a valve and a filtering mechanism, is connected to the transmission pipeline through a flange. By rotating the rotary handle 61, the screw rod 62 is driven to rotate, and the screw rod 62 rotates inside the threaded sleeve 10. At this time, the screw rod 62 moves in the vertical direction. The gear end of the toothed plate 64 is meshed with the gear end of the driven gear 74, and one end of the toothed plate 64 is rotatably connected to the shaft rod 63. Therefore, when the screw rod 62 moves downward, the toothed plate 64 moves downward to drive the driven gear 74. At this time, the threaded rod 72 rotates, and the valve flap 71 threadedly connected to the threaded rod 72 moves to one side to control the opening and closing functions of the valve. The core of the filtering mechanism lies in the convenience of disassembly and installation. By pulling the clamping rods 91 on both sides, the return spring 93 is compressed, the clamping structure between the clamping rods 91 and the perforated clamping plate 83 is released, and the filtering assembly 8 is taken out for treatment, which is convenient, fast, time-saving and labor-saving to use.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A filtering mechanism for a natural gas transmission pipeline, comprising a valve body (1), characterized in that: A vent plate (2) is fixedly connected to the middle of the inner wall of the valve body (1), a small bracket (4) is fixedly connected to the inside of the vent plate (2), a large bracket (3) is fixedly connected to the inner wall of one end of the valve body (1), mounting grooves (5) are provided on both sides of the inner wall of the valve body (1), a threaded sleeve (10) is provided on the top of the valve body (1), a switch assembly (6) is connected to the inner thread of the threaded sleeve (10), a valve plug assembly (7) is provided between the large bracket (3) and the small bracket (4), a filter assembly (8) is snap-fitted to the inside of the mounting groove (5), a snap-fit ​​groove (11) is provided on one side of the two mounting grooves (5), and a bayonet pin assembly (9) is provided inside the snap-fit ​​groove (11).

2. A filter mechanism for a natural gas transmission pipeline according to claim 1, characterized in that: The switch assembly (6) comprises a screw rod (62), the top of the screw rod (62) is fixedly connected to a rotating handle (61), the bottom of the screw rod (62) is fixedly connected to a shaft rod (63), and one end of the shaft rod (63) is rotatably connected to a toothed plate (64).

3. A filter mechanism for a natural gas transmission pipeline according to claim 1, characterized in that: The valve plug assembly (7) comprises a threaded rod (72), the surface of the threaded rod (72) is threadedly connected to a valve flap (71), the surface of the valve flap (71) is provided with a sealing ring (73), one side of the surface of the threaded rod (72) is provided with a driven gear (74), and both ends of the threaded rod (72) are rotatably connected to shaft sleeves (75).

4. A filter mechanism for a natural gas transmission pipeline according to claim 1, characterized in that: The filter assembly (8) comprises a filter ring (81), both sides of the filter ring (81) are fixedly connected with a perforated card plate (83), and a filter net (82) is provided inside the filter ring (81).

5. A filtering mechanism for a natural gas transmission pipeline according to claim 1, characterized in that: The latch assembly (9) comprises a fixed orifice plate (92), the interior of the fixed orifice plate (92) is slidably connected with a latching rod (91), a surface of one end of the latching rod (91) is provided with a limit plate (94), and a surface of the latching rod (91) is sleeved with a return spring (93).

6. A filtering mechanism for a natural gas transmission pipeline according to claim 2, characterized in that: The surface of the screw rod (62) is connected to the internal thread of the threaded sleeve (10), and one side of the toothed plate (64) is meshedly connected to one side of the driven gear (74).

7. A filter mechanism for a natural gas transmission pipeline according to claim 5, characterized in that: One end of the clamping rod (91) is clamped to the inside of the perforated clamping plate (83), and the surface of the limiting plate (94) is slidably connected to the inside of the clamping groove (11).

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