CN210462027U

CN210462027U - Natural gas pipeline with good sealing effect

Info

Publication number: CN210462027U
Application number: CN201921362894.3U
Authority: CN
Inventors: 佟琳
Original assignee: Chengdu Chengfu Qizheng New Energy Development Co Ltd
Current assignee: Chengdu Chengfu Qizheng New Energy Development Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-05
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a sealed effectual natural gas line, including clamp mechanism, insulating mechanism, quiet sealing mechanism and embedded gas pipeline, insulating mechanism seamless fixing is on the inner wall of clamp mechanism, quiet sealing mechanism seamless fixing is on insulating mechanism's inner wall, insulating mechanism is a real insulator, can effectually prevent short-circuit current and stray current to pipeline equipment damage, insulating mechanism has adopted double-seal structure, the gasket among the quiet sealing mechanism is flexible graphite composite gasket, there is good corrosion resistance, plasticity, the fillibility, and resistant radiation and resistant high low temperature, the sealed face of flange that matches when using this kind of gasket does not need precision finishing, also can adapt to "waterline" slot on the sealed face of flange, relatively speaking more economical, practical.

Description

Natural gas pipeline with good sealing effect

Technical Field

The utility model relates to a natural gas line technical field specifically is a sealed effectual natural gas line.

Background

There is always a slight gap between the sealing surfaces in contact with each other, between which a gasket is placed and pressure is applied to fill these gaps and thereby prevent leakage.

In the field with high sealing requirements, the requirements of pipeline equipment on sealing are higher and higher due to the flammable and explosive characteristics of natural gas. The sealing device is the most common device in the natural gas device, but the leakage problem is not effectively improved all the time, according to statistics, 60% -70% of the unscheduled maintenance amount is performed aiming at the sealing point and the leakage point in the pipeline equipment system, and the improvement of the sealing effect is an important measure for equipment management and natural gas transmission.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed effectual natural gas line improves natural gas line and pipe connection mechanism and handles to solved prior art natural gas line and easily leaked and sealed not well problem of effect.

In order to achieve the above object, the utility model provides a following technical scheme: a natural gas pipeline with good sealing effect comprises a clamp mechanism, an insulating mechanism, a static sealing mechanism and an embedded gas pipeline, wherein the insulating mechanism is fixed on the inner wall of the clamp mechanism in a seamless mode, the static sealing mechanism is fixed on the inner wall of the insulating mechanism in a seamless mode, the clamp mechanism comprises an upper screw block, a lower screw block, a screw rod and a screw rod cap, one side of the upper screw block and one side of the lower screw block are respectively welded to the upper portion and the lower portion of the opening and closing position of one side of the clamp mechanism, the screw rod cap is welded to the upper end of the screw rod, and the screw rod penetrates through the inner portions;

the insulating mechanism comprises a double-sealing gasket, a first height limiting ring, a first isolation filling material, a second height limiting ring, a second isolation filling material, a first insulating layer and a second insulating layer, the double-sealing gasket is transversely inserted into the middle of the first height limiting ring, one end of the first isolation filling material is connected with the lower end of the first height limiting ring, the other end of the first isolation filling material is connected with the lower end of the second height limiting ring, one end of the second isolation filling material is connected with the upper end of the second height limiting ring, and the first insulating layer covers the second insulating layer.

Preferably, the static sealing mechanism comprises a bolt, a sealing insulating flange and a gasket, the sealing insulating flange of the upper part and the sealing insulating flange of the lower part of the gasket are fixedly connected through the bolt, and the gasket is attached to the inner wall of the sealing insulating flange.

Preferably, the embedded gas pipeline comprises a corrosion-resistant seamless steel pipe, a hard bonding layer and a PE pipe layer, wherein the corrosion-resistant seamless steel pipe is arranged on the innermost layer of the embedded gas pipeline, the hard bonding layer wraps the outer surface of the corrosion-resistant seamless steel pipe, and the PE pipe layer wraps the hard bonding layer and is located on the outermost layer.

Preferably, one end of the corrosion-resistant seamless steel pipe is longer than the hard bonding layer and the PE pipe layer, and the other end of the corrosion-resistant seamless steel pipe is shorter than the hard bonding layer and the PE pipe layer.

Preferably, an insulating layer is arranged between the upper pipe and the lower pipe of the insulating mechanism and is sealed to the outside.

Preferably, the sealing surface of the static sealing mechanism and the joint part adopt static sealing.

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

1. this sealed effectual natural gas line makes the both ends of pipeline embedded, makes the head and the tail both ends of every two pipelines can hug closely the plug-in connection, can improve the stability of pipeline, seamless steel pipe, stereoplasm bond line moreover.

2. The gasket in the static sealing mechanism of the natural gas pipeline with good sealing effect is a flexible graphite composite gasket, has good corrosion resistance, plasticity and filling property, is radiation-resistant and high-low temperature resistant, does not need precise processing on a flange sealing surface matched when the gasket is used, can adapt to a water line groove on the flange sealing surface, and is relatively economic and practical.

3. This sealed effectual natural gas line, insulating mechanism are a real insulator, can effectually prevent short-circuit current and stray current to damage pipeline equipment, and insulating mechanism has adopted double containment structure, because insulating mechanism is welded corresponding position as a unit spare, and the problem of each part position skew does not exist almost, and insulating integrality keeps unchangeable.

Drawings

FIG. 1 is an external view of the clamp mechanism of the present invention;

fig. 2 is an overall planar view of the insulating mechanism and the static sealing mechanism of the present invention;

fig. 3 is a planar view of the insulating mechanism of the present invention;

fig. 4 is a planar view of the static sealing mechanism of the present invention;

fig. 5 is a natural gas pipeline of the present invention.

In the figure: 1. a clamp mechanism; 11. a screw block; 12. a screw feeding block; 13. a screw; 14. a screw cap; 2. an insulating mechanism; 21. a double-seal gasket; 22. a first height-limiting ring 23, a first isolation filling material; 24. a second height limiting ring; 25. a second isolation fill material; 26. a first insulating layer; 27. a second insulating layer; 3. a static sealing mechanism; 31. a bolt; 32. sealing the insulating flange; 33. a gasket; 4. an embedded gas pipeline; 41. a corrosion-resistant seamless steel tube; 42. a hard bonding layer; 43. a PE tube layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

Referring to fig. 1-5, a natural gas pipeline with good sealing effect comprises a clamp mechanism 1, an insulating mechanism 2, a static sealing mechanism 3 and an embedded gas pipeline 4, wherein the insulating mechanism 2 is seamlessly fixed on the inner wall of the clamp mechanism 1, the static sealing mechanism 3 is seamlessly fixed on the inner wall of the insulating mechanism 2, the clamp mechanism 1 comprises an upper screw block 11, a lower screw block 12, a screw 13 and a screw cap 14, one side of the upper screw block 11 and one side of the lower screw block 12 are respectively welded on the upper part and the lower part of the opening and closing part of one side of the clamp mechanism 1, the screw cap 14 is welded on the upper end of the screw 13, and the screw 13 penetrates through the upper screw block 11 and the lower screw block 12; the insulating mechanism 2 comprises a double-sealing gasket 21, a first height limiting ring 22, a first isolation filling material 23, a second height limiting ring 24, a second isolation filling material 25, a first insulating layer 26 and a second insulating layer 27, wherein the double-sealing gasket 21 is transversely inserted into the middle of the first height limiting ring 22, one end of the first isolation filling material 23 is connected with the lower end of the first height limiting ring 22, the other end of the first isolation filling material is connected with the lower end of the second height limiting ring 24, one end of the second isolation filling material 25 is connected with the upper end of the second height limiting ring 24, and the first insulating layer 26 covers the second insulating layer 27. The static sealing mechanism 3 comprises a bolt 31, a sealing insulating flange 32 and a gasket, wherein the sealing insulating flange 32 of the upper part and the lower part of the gasket 33 are fixedly connected through the bolt 31, and the gasket 33 is attached to the inner wall of the sealing insulating flange 32. The embedded gas pipeline 4 comprises a corrosion-resistant seamless steel pipe 41, a hard bonding layer 42 and a PE pipe layer 43, wherein the corrosion-resistant seamless steel pipe 41 is arranged on the innermost layer of the embedded gas pipeline 4, the hard bonding layer 42 wraps the outer surface of the corrosion-resistant seamless steel pipe 41, and the PE pipe layer 43 wraps the hard bonding layer 42 and is located on the outermost layer. The corrosion-resistant seamless steel pipe 41 has one end longer than the hard adhesive layer 42 and the PE tube layer 43 and the other end shorter than the hard adhesive layer 42 and the PE tube layer 43. An insulating layer is arranged between the upper pipe and the lower pipe of the insulating mechanism 2 and is sealed outwards. The sealing surface of the static sealing mechanism 3 and the joint part adopt static sealing.

The working principle is as follows: after the embedded gas pipelines 4 are in end-to-end embedded butt joint, a clamp mechanism 1 is used for connecting and butting parts, an insulating mechanism 2 and a static sealing mechanism 3 are arranged in the clamp mechanism, the structure parts of the embedded gas pipelines 4 can be sealed and insulated, two ends of each embedded gas pipeline 4 are made to be embedded, the end-to-end ends of every two embedded gas pipelines 4 can be tightly attached and inserted for connection, the stability of the embedded gas pipelines 4 can be improved, the insulating mechanism 2 is seamlessly fixed on the inner wall of the clamp mechanism 1, the static sealing mechanism 3 is seamlessly fixed on the inner wall of the insulating mechanism 2, a double sealing gasket 21 in the insulating mechanism 2 is transversely inserted in the middle of a first height limiting ring 22, one end of a first isolation filling material 23 is connected with the lower end of the first height limiting ring 22, the other end of the first isolation filling material is connected with the lower end of a second height limiting ring 24, one end of a second isolation filling material 25 is connected, the first insulating layer 26 covers the second insulating layer 27, the sealing insulating flanges 32 of the upper portion and the lower portion of the gasket 33 in the static sealing mechanism 3 are fixedly connected through bolts 31, the gasket 33 is attached to the inner walls of the sealing insulating flanges 32, the corrosion-resistant seamless steel pipe 41 in the embedded gas pipeline 4 is arranged on the innermost layer of the embedded gas pipeline 4, the hard adhesive layer 42 wraps the outer surface of the corrosion-resistant seamless steel pipe 41, and the PE pipe layer 43 wraps the hard adhesive layer 42 and is arranged on the outermost layer.

In summary, the following steps: after the embedded gas pipelines 4 are in end-to-end embedded butt joint, the joint is carried out by a clamp mechanism 1, an insulating mechanism 2 and a static sealing mechanism 3 are arranged in the clamp mechanism, the structure of the embedded gas pipelines 4 can be sealed and insulated, two ends of the embedded gas pipelines 4 are made to be embedded, the end-to-end ends of every two embedded gas pipelines 4 can be tightly attached and inserted for connection, the stability of the embedded gas pipelines 4 can be improved, the sealing insulating flanges 32 of the upper part and the lower part of a gasket 33 in the static sealing mechanism 3 are fixedly connected through bolts 31, the gasket 33 is attached to the inner wall of the sealing insulating flange 32, the gasket in the static sealing mechanism 3 is a flexible graphite composite gasket, the gasket has good corrosion resistance, plasticity, filling property, radiation resistance and high and low temperature resistance, the matched flange sealing surface does not need to be precisely machined when the gasket is used, and a 'waterline' groove on the flange sealing surface can also be, relatively more economical and practical. The insulating mechanism is 2 real insulators, can effectually prevent short-circuit current and stray current to pipeline equipment damage, and insulating mechanism has adopted double containment structure.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 sealed effectual natural gas line, includes clamp mechanism (1), insulator constructs (2), quiet sealing mechanism (3) and embedded gas pipeline (4), and insulator constructs (2) seamless fixation on the inner wall of clamp mechanism (1), and quiet sealing mechanism (3) seamless fixation is on the inner wall of insulator constructs (2), its characterized in that: the clamp mechanism (1) comprises an upper screw block (11), a lower screw block (12), a screw (13) and a screw cap (14), one side of the upper screw block (11) and one side of the lower screw block (12) are respectively welded to the upper part and the lower part of the opening and closing part of one side of the clamp mechanism (1), the screw cap (14) is welded to the upper end of the screw (13), and the screw (13) penetrates through the inner parts of the upper screw block (11) and the lower screw block (12);

the insulating mechanism (2) comprises a double-sealing gasket (21), a first height limiting ring (22), a first isolation filling material (23), a second height limiting ring (24), a second isolation filling material (25), a first insulating layer (26) and a second insulating layer (27), the double-sealing gasket (21) is transversely inserted into the middle of the first height limiting ring (22), one end of the first isolation filling material (23) is connected with the lower end of the first height limiting ring (22), the other end of the first isolation filling material is connected with the lower end of the second height limiting ring (24), one end of the second isolation filling material (25) is connected with the upper end of the second height limiting ring (24), and the first insulating layer (26) covers the second insulating layer (27).

2. The natural gas pipeline with good sealing effect as claimed in claim 1, wherein: the static sealing mechanism (3) comprises a bolt (31) and a sealing insulating flange (32), the sealing insulating flanges (32) at the upper part and the lower part of a gasket (33) are fixedly connected through the bolt (31), and the gasket (33) is attached to the inner wall of the sealing insulating flange (32).

3. The natural gas pipeline with good sealing effect as claimed in claim 1, wherein: the embedded gas pipeline (4) comprises a corrosion-resistant seamless steel pipe (41), a hard bonding layer (42) and a PE pipe layer (43), wherein the corrosion-resistant seamless steel pipe (41) is arranged on the innermost layer of the embedded gas pipeline (4), the hard bonding layer (42) wraps the outer surface of the corrosion-resistant seamless steel pipe (41), and the PE pipe layer (43) wraps the hard bonding layer (42) and is located on the outermost layer.

4. A gas line with good sealing effect according to claim 3, characterized in that: one end of the corrosion-resistant seamless steel pipe (41) is longer than the hard adhesive layer (42) and the PE pipe layer (43), and the other end of the corrosion-resistant seamless steel pipe is shorter than the hard adhesive layer (42) and the PE pipe layer (43).

5. The natural gas pipeline with good sealing effect as claimed in claim 1, wherein: an insulating layer is arranged between the upper pipe and the lower pipe of the insulating mechanism (2) and is sealed outwards.

6. The natural gas pipeline with good sealing effect as claimed in claim 1, wherein: and the sealing surface of the static sealing mechanism (3) and the joint part adopt static sealing.