CN220506160U - Natural gas pipeline dust collector - Google Patents

Abstract

The utility model belongs to the technical field of natural gas cleaning equipment, and specifically relates to a natural gas pipeline dust removal device. It includes a joint pipe, the joint pipe includes an inner pipe and an outer pipe, the inner pipe is sleeved in the outer pipe, a filter valve is provided in the outer pipe, and the filter valve is installed at the air outlet end of the inner pipe, A filter disc is arranged between the inner tube and the outer tube, and a filter net is arranged on the filter disc. Its purpose is to further filter the dust in the natural gas filtered out by the filter valve through the filter screen on the filter plate, thereby improving the quality of the filtered natural gas.

Description

Natural gas pipeline dust collector

Technical Field

The utility model belongs to the technical field of natural gas cleaning equipment, and particularly relates to a natural gas pipeline dust removal device.

Background

In the process of conveying natural gas, especially in natural gas pipelines in factories and the like of cigarette factories, natural gas media contain impurities such as particulate matters, water vapor, mixed dust and the like. In the prior art, impurities in a natural gas medium are generally cleaned through a filter valve, but the common filter valve only can filter particles with larger particle sizes and water vapor, and has poor filtering effect on dust with smaller volume, so that the quality of gas conveyed by a natural gas pipeline is poor.

Disclosure of Invention

The purpose of the utility model is that: aims at providing a natural gas pipeline dust removal device which is used for solving the problems that the purifying effect of a filter valve on dust mixed in natural gas is poor and the quality of the natural gas is poor.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a natural gas pipeline dust collector, includes the joint pipe, the joint pipe includes inner tube and outer tube, the inner tube cover is established in the outer tube, be provided with the filter valve in the outer tube, the filter valve sets up the end of giving vent to anger of inner tube, be provided with the filter disc between inner tube and the outer tube, be provided with the filter screen on the filter disc.

Preferably, the filter disc comprises an inner ring body and an outer ring body, a connecting rod is arranged between the inner ring body and the outer ring body, the filter screen is arranged between the inner ring body and the outer ring body, the inner wall of the inner ring body is in sliding connection with the outer wall of the inner tube, and the outer wall of the outer ring body is in sliding connection with the inner wall of the outer tube. The arrangement is convenient for installing the filter disc and the filter screen.

Preferably, the filter screen is located in the middle of the filter disc in the radial direction, an air passage is formed in the filter disc, an air inlet of the air passage is located above the filter screen, an air outlet of the air passage is located below the filter screen, and a sealing plate is arranged at the air inlet of the air passage in a reversible manner. The arrangement is beneficial to providing a standby gas flow passage when the dust plugs the filter screen, and improves the safety.

Preferably, the air outlet of the air channel is obliquely arranged and faces the filter screen. The arrangement is favorable for dredging the blocked filter screen.

Preferably, the outer tube of the joint tube is a cross tube, the inner tube is an L-shaped tube, the air inlet end of the inner tube is connected with the first interface of the outer tube, and the air outlet end of the inner tube is arranged in the second interface of the outer tube;

the air inlet end of the inner pipe is connected with an air inlet pipeline of the natural gas pipeline, and the third interface of the outer pipe is connected with an air outlet pipeline of the natural gas pipeline. The natural gas is convenient to transport by the arrangement.

Preferably, a sealing disc is fixedly arranged at the second interface of the joint pipe. The arrangement is convenient for installing the filter valve and sealing the pipeline.

Preferably, a drain valve is fixedly arranged at the third interface of the outer tube. This facilitates the removal of filtered water vapor from the blow down valve.

The utility model adopting the technical scheme has the following advantages:

1. in the scheme, the filter disc is arranged between the inner tube and the outer tube, and dust in the natural gas filtered by the filter valve is further filtered through the filter screen on the filter disc, so that the quality of the filtered natural gas is improved;

2. in this scheme, be provided with the air flue on the filter disc, can set up the closure plate in the air flue in the upset, when the filter disc can normally filter natural gas, the closure plate seals the air flue, has piled up too much dust on the filter screen on the filter disc, the atmospheric pressure increases, extrusion filter upset opens the air flue for natural gas releases from the air flue, the gas outlet of air flue is in the slope of filter screen below ultrafiltration net setting, high-pressure air current towards the filter screen, blows off the dust of piling up on the filter screen, makes the air current filter from the filter screen again, avoids the too big incident that produces in the pipeline pressure.

Drawings

The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic diagram of a natural gas pipeline dust removal device according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the internal structure of a joint pipe of an embodiment of a dust removing device for a natural gas pipeline according to the present utility model;

FIG. 3 is a schematic view of a filter tray of an embodiment of a natural gas pipeline dust removal device according to the present utility model;

FIG. 4 is a second schematic view of a filter tray of an embodiment of a dust-removing device for natural gas pipelines;

the main reference numerals are as follows:

1. a joint pipe; 2. an inner tube; 3. an outer tube; 31. a first interface; 32. a second interface; 33. a third interface; 4. a filter valve; 5. a filter tray; 51. a filter screen; 52. an inner ring body; 53. an outer ring body; 54. a connecting rod; 55. an airway; 56. a closing plate; 6. a sealing plate; 7. a blow-down valve.

Detailed Description

The following embodiments of the present utility model are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present utility model from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the utility model, and in order to better illustrate the embodiments of the utility model, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., which are based on the azimuth or positional relationship shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and are not to be construed as limiting the present utility model, and that the specific meanings of the terms described above may be understood by those of ordinary skill in the art in view of the specific circumstances, and that in the description of the present application, the terms such as "first", "second", etc. are merely used for distinguishing the description and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 4, the natural gas pipeline dust removal device comprises a joint pipe 1, wherein the joint pipe 1 comprises an inner pipe 2 and an outer pipe 3, the inner pipe 2 is sleeved in the outer pipe 3, the outer pipe 3 of the joint pipe 1 is a cross pipe, the inner pipe 2 is an L-shaped pipe, the air inlet end of the inner pipe 2 is welded and connected with a first interface 31 of the outer pipe 3, the air outlet end of the inner pipe 2 is arranged in a second interface 32 of the outer pipe 3, a filter valve 4 is arranged in the second interface 32 of the outer pipe 3, the filter valve 4 is arranged at the air outlet end of the inner pipe 2, a sealing disc 6 is arranged at the second interface 32 of the joint pipe 1, a sealing ring is arranged between the sealing disc 6 and the second interface 32 of the joint pipe 1, and the sealing disc 6 is fixedly connected with the second interface 32 of the joint pipe 1 through bolts. The air inlet end of the inner pipe 2 is connected with an air inlet pipeline of the natural gas pipeline, and the third interface 33 of the outer pipe 3 is connected with an air outlet pipeline of the natural gas pipeline. A filter disc 5 is arranged between the inner tube 2 and the outer tube 3, and a filter screen 51 is arranged on the filter disc 5.

The natural gas enters the joint pipe 1 from the gas inlet pipeline of the natural gas pipeline through the inner pipe 2, larger particles and water drops are filtered at the filter valve 4, the filtered natural gas flows into the second interface 32 of the outer pipe 3, and the natural gas is further filtered through the filter screen 51 of the filter disc 5, so that the filtering effect is improved, and the quality of the natural gas conveyed by the natural gas pipeline is better.

In the present embodiment, a drain valve 7 is fixedly installed at the fourth interface of the joint pipe 1 by a screw, and the sewage condensed by the filtering valve 4 after filtering is discharged from the drain valve 7.

In this embodiment, the filter disc 5 includes an inner ring 52 and an outer ring 53, a connecting rod 54 is welded between the inner ring 52 and the outer ring 53, the filter screen 51 is disposed between the inner ring 52 and the outer ring 53, and is in a ring structure, the inner wall of the inner ring 52 is slidably connected with the outer wall of the inner tube 2, and the outer wall of the outer ring 53 is slidably connected with the inner wall of the outer tube 3. In the radial direction, the filter screen 51 is located the middle part of filter disc 5, has offered air flue 55 on the filter disc 5, and the air inlet of air flue 55 is located filter screen 51 top, and the gas outlet of air flue 55 is located filter screen 51 below, and the air inlet department of air flue 55 is provided with closure plate 56 through the torsional spring can overturn. The air outlet of the air duct 55 is inclined and faces the filter screen 51.

When the filter disc 5 can normally filter natural gas, the air passage 55 is closed by the closing plate 56, excessive dust is accumulated on the filter screen 51 on the filter disc 5, the air pressure is increased, the filter plate is extruded to turn over, the air passage 55 is opened, the natural gas is released from the air passage 55, the air outlet of the air passage 55 is obliquely arranged below the filter screen 51 by the ultra-filter screen 51, high-pressure air flows towards the filter screen 51, and the dust accumulated on the filter screen 51 is blown off, so that the air flow is filtered from the filter screen 51 again, and safety accidents caused by excessive pressure in a pipeline are avoided.

It will be appreciated that loose filter cotton may be laid on the filter mesh 51 in order to enhance the filtering effect on the gas.

It will be appreciated that a pressure sensor may be provided in the third port 33 of the joint pipe 1 to detect the gas pressure in the natural gas supply pipe, and when the gas pressure in the natural gas supply pipe is abnormal, an early warning is timely performed, and the joint pipe 1 is opened to clean the filter valve 4 and the filter disc 5.

Working principle: the natural gas enters the joint pipe 1 from the gas inlet pipeline of the natural gas pipeline through the inner pipe 2, larger particles and water drops are filtered at the filter valve 4, filtered sewage flows to the blow-off valve 7 under the action of gravity, and the blow-off valve 7 is opened periodically to discharge the sewage. The filtered natural gas flows into the second connector 32 of the outer tube 3, and is further filtered by the filter disc 5, so that the filtering effect is improved. During normal filtration, the air passage 55 is closed by the closing plate 56, excessive dust is accumulated on the filter screen 51 on the filter disc 5, the air pressure is increased, the filter plate is extruded to turn over, the air passage 55 is opened, natural gas is released from the air passage 55, the air outlet of the air passage 55 is obliquely arranged below the filter screen 51, high-pressure air flows towards the filter screen 51, and the dust accumulated on the filter screen 51 is blown off, so that the air flows are filtered from the filter screen 51 again, and safety accidents caused by excessive pressure in a pipeline are avoided.

The dust removing device for the natural gas pipeline provided by the utility model is described in detail. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (7)

1. The utility model provides a natural gas pipeline dust collector which characterized in that: including connecting pipe (1), connect pipe (1) including inner tube (2) and outer tube (3), inner tube (2) cover is established in outer tube (3), be provided with filter valve (4) in outer tube (3), filter valve (4) set up the end of giving vent to anger of inner tube (2), be provided with filter disc (5) between inner tube (2) and outer tube (3), be provided with filter screen (51) on filter disc (5).

2. A natural gas pipeline dust removal device according to claim 1, wherein: the filter disc (5) comprises an inner ring body (52) and an outer ring body (53), a connecting rod (54) is arranged between the inner ring body (52) and the outer ring body (53), the filter screen (51) is arranged between the inner ring body (52) and the outer ring body (53), the inner wall of the inner ring body (52) is in sliding connection with the outer wall of the inner tube (2), and the outer wall of the outer ring body (53) is in sliding connection with the inner wall of the outer tube (3).

3. A natural gas pipeline dust removal device according to claim 2, characterized in that: the filter screen (51) is located in the middle of the filter disc (5) in the radial direction, an air passage (55) is formed in the filter disc (5), an air inlet of the air passage (55) is located above the filter screen (51), an air outlet of the air passage (55) is located below the filter screen (51), and a sealing plate (56) is arranged at the air inlet of the air passage (55) in a turnover mode.

4. A natural gas pipeline dust removal device according to claim 3, wherein: the air outlet of the air passage (55) is obliquely arranged and faces the filter screen (51).

5. A natural gas pipeline dust removal device according to claim 1, wherein: the outer tube (3) of the joint tube (1) is a cross tube, the inner tube (2) is an L-shaped tube, the air inlet end of the inner tube (2) is connected with the first interface (31) of the outer tube (3), and the air outlet end of the inner tube (2) is arranged in the second interface (32) of the outer tube (3);

the air inlet end of the inner pipe (2) is connected with an air inlet pipeline of the natural gas pipeline, and the third interface (33) of the outer pipe (3) is connected with an air outlet pipeline of the natural gas pipeline.

6. A natural gas pipeline dedusting apparatus as in claim 5, wherein: a sealing disc (6) is fixedly arranged at the second interface (32) of the joint pipe (1).

7. A natural gas pipeline dedusting apparatus as in claim 5, wherein: a drain valve (7) is fixedly arranged at the fourth interface of the outer tube (3).