Natural gas pipeline filter

Abstract

The utility model belongs to the technical field of filters, and particularly relates to a natural gas pipeline filter which comprises a shell and a filter element unit installed in the shell, the front end and the rear end of the shell are fixedly connected with a feeding pipe and a discharging pipe respectively, an access hole is formed in the outer side of the shell, and a blocking plate for blocking the access hole is installed on the outer side of the shell. An edge shell is fixedly connected to one side of the shell, a movable edge pressing block capable of horizontally moving is installed in the edge shell, the movable edge pressing block can move into the shell to abut against the filter element unit, a threaded rod is connected to the edge shell in a threaded mode, and the end, located in the edge shell, of the threaded rod is rotationally connected with the movable edge pressing block. By arranging the movable edge pressing block, the filter element unit can have a certain installation gap when the filter element unit is disassembled and assembled, so that the disassembly and assembly difficulty of the filter element unit is reduced, and the filter element unit is convenient to maintain or replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and specifically relates to a natural gas pipeline filter. Background Art

[0002] As a clean and efficient energy source, natural gas is widely used in industrial, commercial and civil fields. However, during the extraction, transportation and use of natural gas, various impurities such as solid particles, moisture, oil mist and other impurities are often mixed in. These impurities will not only reduce the combustion efficiency of natural gas, but also may cause corrosion and damage to pipelines and equipment, and even cause safety hazards. Therefore, it is particularly important to install efficient filtering devices in natural gas transmission pipelines.

[0003] Since the filter element unit of the filter (activated carbon filter element, multi-layer composite filter element, ceramic filter element, etc.) may become clogged or fail after long-term use, it needs to be maintained or replaced regularly. However, in order to ensure the sealing, the filter element unit of the filter is usually in close contact with the inner wall of the filter, resulting in a smaller installation gap of the filter element unit, which greatly increases the difficulty of disassembly and assembly of the filter element unit. Utility Model Content

[0004] The utility model aims to provide a natural gas pipeline filter, which can reduce the difficulty of disassembling and assembling the filter element unit of the filter and facilitate the maintenance or replacement of the filter element unit.

[0005] The technical solutions adopted in this utility are as follows:

[0006] A natural gas pipeline filter comprises a shell and a filter element unit installed inside the shell, wherein the front and rear ends of the shell are respectively fixedly connected with a feed pipe and a discharge pipe, an inspection port is arranged on the outside of the shell, a blocking plate for blocking the inspection port is installed on the outside of the shell, an edge shell is fixedly connected to one side of the shell, a movable edge pressure block which can be moved horizontally is installed inside the edge shell, and the movable edge pressure block can be moved to the inside of the shell to abut against the filter element unit.

[0007] Furthermore, a threaded rod is threadedly connected to the edge shell, and one end of the threaded rod located inside the edge shell is rotatably connected to a movable edge pressing block.

[0008] Furthermore, the movable edge pressing block comprises a supporting block rotatably connected to one end of the threaded rod, and a rubber sleeve is fixedly connected to the outer side of the supporting block.

[0009] Furthermore, a fixed edge pressing block is fixedly connected to the inner wall of the shell body away from the edge shell, and the sides of the movable edge pressing block and the fixed edge pressing block close to each other can be provided with arc-shaped edges, and both sides of the filter element unit are arc-shaped.

[0010] Furthermore, the inspection port is opened on the lower side of the shell, and the blocking plate is installed on the lower side of the shell.

[0011] Furthermore, the position where the sealing plate and the lower end of the filter element unit abut against each other is a flat surface, and guide recesses are provided on the sealing plate and on both sides of the front and rear of the guide recesses, and a waste discharge pipe is fixedly connected to the lower end of the guide recess, and a manual valve is installed on the waste discharge pipe.

[0012] The technical effects achieved by this utility model are:

[0013] The utility model discloses a natural gas pipeline filter which is provided with a movable movable edge pressing block, so that the filter element unit has a certain installation gap when the filter element unit is disassembled and assembled, thereby reducing the difficulty of disassembling and assembling the filter element unit and facilitating the repair or replacement of the filter element unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of this utility model;

[0015] Figure 2 It is a schematic diagram of the cutaway structure of the present utility model;

[0016] Figure 3 This is a practical Figure 2 Schematic diagram of the cross-section structure;

[0017] Figure 4 It is a cutaway top view of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the practical blocking plate.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Shell; 2. Feed pipe; 3. Discharge pipe; 4. Sealing plate; 5. Filter element unit; 6. Edge shell; 7. Movable edge pressure block; 8. Fixed edge pressure block; 9. Threaded rod; 10. Arc edge; 11. Guide recessed part; 12. Waste discharge pipe; 13. Flat part. DETAILED DESCRIPTION

[0021] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0022] like Figure 1-5As shown, a natural gas pipeline filter comprises a housing 1 and a filter element unit 5 installed inside the housing 1. The front and rear ends of the housing 1 are respectively fixedly connected with a feed pipe 2 and a discharge pipe 3. Natural gas enters the housing 1 through the feed pipe 2 and can be discharged through the discharge pipe 3 after being filtered by the filter element unit 5.

[0023] In order to facilitate the installation and disassembly of the discharge pipe 3, an inspection port is provided on the outer side of the shell 1, and the filter element unit 5 enters and exits through the inspection port. A sealing plate 4 for sealing the inspection port is installed on the outer side of the shell 1, and its installation method is preferably screw connection. At the same time, one side of the shell 1 is fixedly connected with an edge shell 6 connected to its interior, and a horizontally movable pressure block 7 is installed inside the edge shell 6. The sizes of the edge shell 6 and the movable pressure block 7 are adapted to each other. While being movable, they ensure good sealing performance and can reduce the phenomenon of impurities entering the interior of the edge shell 6. The movable pressure block 7 can be moved to the interior of the shell 1 and abut against the filter element unit 5. At this time, impurities can be filtered through the filter element unit 5, and the peripheral sides of the filter element unit 5 are respectively in contact with the inner wall of the shell 1, the movable pressure block 7 and the sealing plate 4, thereby reducing the movement of impurities from the peripheral side of the filter element unit 5.

[0024] At this time, when the filter element unit 5 is replaced and maintained, the sealing plate 4 is first opened, and then the movable edge pressing block 7 is moved to separate the movable edge pressing block 7 from the filter element unit 5, so that there is a certain installation gap between the filter element unit 5 and the inside of the shell 1 during the replacement process, thereby reducing the difficulty of disassembling and assembling the filter element unit 5, and conveniently repairing or replacing the filter element unit 5. After the filter element unit 5 is installed, the movable edge pressing block 7 is moved again to make the movable edge pressing block 7 and the filter element unit 5 abut against each other, and then the sealing plate 4 can be installed.

[0025] The outer side of the edge shell 6 can be fixedly connected to an electric push rod that can drive the movable edge pressing block 7 to move, and can also drive the movable edge pressing block 7 to move. Figure 2-4 As shown, a threaded rod 9 is threadedly connected to the edge shell 6, and one end of the threaded rod 9 located inside the edge shell 6 is rotatably connected to the movable edge pressing block 7. At this time, the movable edge pressing block 7 can be driven to move by rotating the threaded rod 9. It has a simple structure, low cost, and good locking stability after the movement is completed.

[0026] Among them, the movable edge clamping block 7 includes a support block rotatably connected to one end of the threaded rod 9. The support block can be a rectangular parallelepiped, and a rubber sleeve is fixedly connected to the outer side of the support block. The setting of the rubber sleeve can make the movable edge clamping block 7 have better sealing performance while being movable.

[0027] like Figure 2-4As shown, a fixed edge clamping block 8 is fixedly connected to the inner wall of the shell 1 on the side away from the edge shell 6. The fixed edge clamping block 8 can also be made of rubber material. The sides of the movable edge clamping block 7 and the fixed edge clamping block 8 close to each other can be provided with arc-shaped edges 10. Both sides of the filter element unit 5 are arc-shaped. At this time, the shape setting of the arc-shaped edge 10 can increase its sealing performance.

[0028] like Figure 3-4 As shown, the inspection port is opened on the lower side of the shell 1, and the sealing plate 4 is installed on the lower side of the shell 1. At this time, through the position setting of the inspection port, when the filter element unit 5 is taken out, the impurities inside the shell 1 will automatically fall under the action of gravity, reducing the gap between the filter element unit 5 and the shell 1 caused by the obstruction of impurities when the filter element unit 5 is installed, thereby ensuring its sealing.

[0029] At the same time, if Figure 3-5 As shown, the position where the lower ends of the sealing plate 4 and the filter element unit 5 abut against each other is a flat portion 13, and guide recessed portions 11 can be provided on the sealing plate 4 and on both the front and rear sides of the guide recessed portion 11, and a waste discharge pipe 12 is fixedly connected to the lower end of the guide recessed portion 11, and a manual valve is installed on the waste discharge pipe 12. At this time, before maintenance, the manual valve can be opened to allow the material inside the shell 1 to be discharged through the waste discharge pipe 12.

[0030] The working principle of the utility model is as follows: when the filter element unit 5 is replaced and maintained, the sealing plate 4 is first opened, and then the threaded rod 9 is rotated to move the movable edge pressing block 7, so that the movable edge pressing block 7 and the filter element unit 5 are separated, so that there is a certain installation gap between the filter element unit 5 and the inside of the housing 1 during the replacement process, and then the filter element unit 5 is removed for maintenance or replacement;

[0031] After the maintenance is completed, the filter element unit 5 is installed into the interior of the housing 1, and then the threaded rod 9 is rotated again to move the movable edge pressing block 7 so that the movable edge pressing block 7 and the filter element unit 5 are abutted against each other, and then the sealing plate 4 is installed.

[0032] In summary, the present technical solution provides a movable edge pressing block 7 so that the filter element unit 5 has a certain installation gap when the filter element unit 5 is disassembled and assembled, thereby reducing the difficulty of disassembling and assembling the filter element unit 5 and facilitating the repair or replacement of the filter element unit 5.

[0033] The above is only a preferred implementation of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A natural gas pipeline filter, comprising a housing (1) and a filter element unit (5) installed inside the housing (1), wherein the front and rear ends of the housing (1) are respectively fixedly connected with a feed pipe (2) and a discharge pipe (3), characterized in that: An inspection port is arranged on the outer side of the shell (1), a sealing plate (4) for sealing the inspection port is installed on the outer side of the shell (1), an edge shell (6) is fixedly connected to one side of the shell (1), a movable edge pressing block (7) that can be moved horizontally is installed inside the edge shell (6), and the movable edge pressing block (7) can be moved to the inside of the shell (1) and abut against the filter element unit (5).

2. A natural gas pipeline filter according to claim 1, characterized in that: A threaded rod (9) is threadedly connected to the edge shell (6); one end of the threaded rod (9) located inside the edge shell (6) is rotatably connected to a movable edge pressing block (7).

3. A natural gas pipeline filter according to claim 2, characterized in that: The movable edge pressing block (7) comprises a support block rotatably connected to one end of the threaded rod (9), and a rubber sleeve is fixedly connected to the outer side of the support block.

4. A natural gas pipeline filter according to claim 2, characterized in that: A fixed edge pressing block (8) is fixedly connected to the inner wall of the shell (1) on the side away from the edge shell (6), and the sides of the movable edge pressing block (7) and the fixed edge pressing block (8) close to each other can be provided with arc-shaped edges (10), and both sides of the filter element unit (5) are in an arc shape.

5. A natural gas pipeline filter according to claim 1, characterized in that: The inspection port is opened on the lower side of the shell (1), and the blocking plate (4) is installed on the lower side of the shell (1).

6. A natural gas pipeline filter according to claim 5, characterized in that: The position where the lower ends of the blocking plate (4) and the filter element unit (5) abut against each other is a flat surface portion (13); a guide recess (11) is provided on the blocking plate (4) and located on both the front and rear sides of the guide recess (11); a waste discharge pipe (12) is fixedly connected to the lower end of the guide recess (11); and a manual valve is installed on the waste discharge pipe (12).

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