CN217713952U

CN217713952U - Natural gas pipeline with good heat-insulating property and high safety

Info

Publication number: CN217713952U
Application number: CN202221201704.1U
Authority: CN
Inventors: 杨夕林
Original assignee: Qinshui Haokun Coalbed Methane Co ltd
Current assignee: Qinshui Haokun Coalbed Methane Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-11-01
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses a natural gas line that heat-proof quality is good the degree of safety height, including inner tube, outer tube and heat-proof layer, be provided with the heat-proof layer between inner tube and the outer tube, the inboard of inner tube is provided with interior sheath, interior sheath includes anticorrosive coating and explosion-proof coating, the outside of anticorrosive coating is provided with the explosion-proof coating. The utility model discloses an inner tube, the cooperation of outer tube and heat-resistant layer, inner tube and outer tube improve natural gas line's structural strength, nano-ceramics insulating layer and mullite fiber insulating layer can the separation outside heat get into the inner chamber of inner tube, the inner chamber of avoiding the inner tube produces the comdenstion water, improve the heat-proof quality of pipeline, through designing the explosion-proof layer, can improve natural gas line's explosion-proof performance, improve its security, through designing the buffer layer, can slow down the influence of ground vibration to the pipeline, slow down the influence of natural gas flow to the outside simultaneously, thereby reach the high effect of security, the low problem of current device security has been solved.

Description

Natural gas pipeline with good heat-insulating property and high safety

Technical Field

The utility model relates to a natural gas line technical field specifically is a natural gas line that heat-proof quality is good the degree of safety is high.

Background

The natural gas pipeline refers to a pipeline for conveying natural gas (including associated gas produced in an oil field) from a mining place or a processing plant to an urban gas distribution center or an industrial enterprise user, and is also called a gas transmission pipeline, the gas pipeline can be divided into three types according to the application, namely a gas pipeline, a gas transmission pipeline and a gas distribution pipeline, the gas pipeline is a pipeline from a gas field wellhead device to a gas processing plant or a starting point gas station through a gas collecting station, the gas transmission pipeline is a pipeline from a gas processing plant or a starting point gas station of a gas source to the gas distribution center, a large-scale user or a gas storage of each large city, the gas transmission pipeline is a pipeline from an urban pressure regulating metering station to a user, the pressure is low, the branches are multiple, the pipe network is dense, the branch pipe diameter is small, steel pipes are largely used, the low-pressure gas distribution pipeline can also be made of plastic pipes or other materials, and the existing natural gas pipeline has poor performance, so that potential safety hazards are easily generated in a high-temperature environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas line that heat-proof quality is good and the degree of safety is high possesses the high advantage of security, has solved the low problem of current device security.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a natural gas line that good safety degree of heat-proof quality is high, includes inner tube, outer tube and heat-proof layer, be provided with the heat-proof layer between inner tube and the outer tube, the inboard of inner tube is provided with interior sheath, interior sheath includes anticorrosive coating and explosion-proof layer, the outside of anticorrosive coating is provided with the explosion-proof layer, the surface of outer tube is provided with the outer jacket, the outer jacket includes buffer layer and wearing layer, the outside of buffer layer is provided with the wearing layer.

Preferably, the heat-resistant layer comprises a nano ceramic heat-insulating layer and a mullite fiber heat-insulating layer, and the mullite fiber heat-insulating layer is arranged on the outer side of the nano ceramic heat-insulating layer.

Preferably, the inner pipe is made of chromium steel, and the outer pipe is made of polyethylene.

Preferably, the anticorrosive coating is an anticorrosive paint, and the thickness of the anticorrosive coating is between three tenths of millimeters and five tenths of millimeters.

Preferably, the explosion-proof layer is netted aluminum alloy layer, the material of buffer layer is epoxy, the wearing layer is ceramic wear-resistant coating.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an inner tube, the cooperation of outer tube and heat-resistant layer, inner tube and outer tube improve natural gas line's structural strength, nano-ceramics insulating layer and mullite fiber insulating layer can the separation outside heat get into the inner chamber of inner tube, the inner chamber of avoiding the inner tube produces the comdenstion water, improve the heat-proof quality of pipeline, through designing the explosion-proof layer, can improve natural gas line's explosion-proof performance, improve its security, through designing the buffer layer, can slow down the influence of ground vibration to the pipeline, slow down the influence of natural gas flow to the outside simultaneously, thereby reach the high effect of security, the low problem of current device security has been solved.

2. The utility model discloses a design anticorrosive coating improves the corrosion resisting property of inner tube internal surface, improves its life, through designing the wearing layer, can improve natural gas line's wearability, makes its difficult wearing and tearing.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the inner protective layer structure of the present invention;

fig. 3 is a front sectional view of the outer protective layer structure of the present invention.

In the figure: 1. an inner tube; 2. an outer tube; 3. a thermal barrier layer; 31. a nano ceramic thermal insulation layer; 32. a mullite fiber thermal insulation layer; 4. an inner sheath layer; 41. an anticorrosive layer; 42. an explosion-proof layer; 5. an outer jacket; 51. a buffer layer; 52. and a wear-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, a natural gas pipeline with good heat insulation performance and high safety comprises an inner pipe 1, an outer pipe 2 and a heat-resistant layer 3, wherein the heat-resistant layer 3 is arranged between the inner pipe 1 and the outer pipe 2, the heat-resistant layer 3 comprises a nano ceramic heat-insulating layer 31 and a mullite fiber heat-insulating layer 32, the mullite fiber heat-insulating layer 32 is arranged on the outer side of the nano ceramic heat-insulating layer 31, the inner pipe 1 is made of chrome steel, the outer pipe 2 is made of polyethylene, the corrosion resistance of the inner surface of the inner pipe 1 is improved by designing an anti-corrosion layer 41, the service life of the inner pipe is prolonged, the wear resistance of the natural gas pipeline can be improved by designing a wear-resistant layer 52, the natural gas pipeline is not easy to wear, the inner side of the inner pipe 1 is provided with an inner protection layer 4, the inner protection layer 4 comprises an anti-corrosion layer 41 and an anti-explosion layer 42, the anti-corrosion layer 41 is made of corrosion coating, the thickness of the anti-corrosion layer 41 is between three millimeters and five millimeters, the outer side of the anti-explosion layer 41 is provided with an anti-explosion layer 42, the anti-explosion layer 42 is a net-shaped aluminum alloy layer, the buffer layer 51 is made of epoxy resin, the wear-resistant layer 52 is a ceramic wear-resistant coating, the surface of the outer pipe 2 is provided with the outer protective layer 5, the outer protective layer 5 comprises the buffer layer 51 and the wear-resistant layer 52, the outer side of the buffer layer 51 is provided with the wear-resistant layer 52, the inner pipe 1 and the outer pipe 2 improve the structural strength of the natural gas pipeline through the cooperation of the inner pipe 1, the outer pipe 2 and the heat-resistant layer 3, the nano ceramic heat-insulating layer 31 and the mullite fiber heat-insulating layer 32 can prevent external heat from entering the inner cavity of the inner pipe 1, avoid the inner cavity of the inner pipe 1 from generating condensed water and improve the heat-insulating property of the pipeline, the anti-explosion layer 42 is designed, so that the anti-explosion property of the natural gas pipeline is improved, the safety is improved, the influence of ground vibration on the pipeline can be reduced through the design of the buffer layer 51, and the influence of the natural gas flow on the outside can be reduced, thereby reach the high effect of security, solved the low problem of current device security.

During the use, through inner tube 1, the cooperation of outer tube 2 and heat-resistant layer 3, inner tube 1 and outer tube 2 improve natural gas line's structural strength, nano ceramic insulating layer 31 and mullite fiber insulating layer 32 can the outside heat of separation get into the inner chamber of inner tube 1, avoid the inner chamber of inner tube 1 to produce the comdenstion water, improve the heat-proof quality of pipeline, through design explosion-proof layer 42, can improve natural gas line's explosion-proof quality, improve its security, through design buffer layer 51, can slow down the influence of ground vibration to the pipeline, slow down the influence of natural gas flow to the outside simultaneously, thereby reach the high effect of security.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a natural gas line that good safety of heat-proof quality is high, includes inner tube (1), outer tube (2) and heat-resistant layer (3), its characterized in that: be provided with between inner tube (1) and outer tube (2) thermal-insulated layer (3), the inboard of inner tube (1) is provided with interior sheath (4), interior sheath (4) are including anticorrosive coating (41) and explosion-proof coating (42), the outside of anticorrosive coating (41) is provided with explosion-proof coating (42), the surface of outer tube (2) is provided with outer jacket (5), outer jacket (5) are including buffer layer (51) and wearing layer (52), the outside of buffer layer (51) is provided with wearing layer (52).

2. The natural gas pipeline according to claim 1, wherein the natural gas pipeline has good heat insulation performance and high safety, and the natural gas pipeline is characterized in that: the heat-resistant layer (3) comprises a nano ceramic heat-insulating layer (31) and a mullite fiber heat-insulating layer (32), and the mullite fiber heat-insulating layer (32) is arranged on the outer side of the nano ceramic heat-insulating layer (31).

3. A natural gas pipeline with good thermal insulation performance and high safety as claimed in claim 1, wherein: the inner pipe (1) is made of chrome steel, and the outer pipe (2) is made of polyethylene.

4. The natural gas pipeline according to claim 1, wherein the natural gas pipeline has good heat insulation performance and high safety, and the natural gas pipeline is characterized in that: the anticorrosive coating (41) is an anticorrosive coating, and the thickness of the anticorrosive coating (41) is between three millimeters and five millimeters.

5. A natural gas pipeline with good thermal insulation performance and high safety as claimed in claim 1, wherein: explosion-proof layer (42) are netted aluminium alloy layer, the material of buffer layer (51) is epoxy, wearing layer (52) are ceramic wear-resisting coating.