CN220204951U - Natural gas pipeline with flexible coating - Google Patents
Natural gas pipeline with flexible coating Download PDFInfo
- Publication number
- CN220204951U CN220204951U CN202320646624.5U CN202320646624U CN220204951U CN 220204951 U CN220204951 U CN 220204951U CN 202320646624 U CN202320646624 U CN 202320646624U CN 220204951 U CN220204951 U CN 220204951U
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- China
- Prior art keywords
- layer
- natural gas
- drag reduction
- wall
- fixedly connected
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000003345 natural gas Substances 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 24
- 238000000576 coating method Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 49
- 239000010410 layer Substances 0.000 claims description 79
- 238000009413 insulation Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000000017 hydrogel Substances 0.000 claims description 3
- 229920013818 hydroxypropyl guar gum Polymers 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 15
- 238000000605 extraction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a natural gas pipeline with a flexible coating, which comprises a gas pipe and a drag reduction layer a arranged on the circular inner wall of the gas pipe, wherein the circular inner wall of the drag reduction layer a is fixedly connected with a flexible layer, the circular inner wall of the flexible layer is fixedly connected with a drag reduction layer b which is matched with the drag reduction layer a to slow down the resistance of natural gas in the gas pipe during transportation, a fixing sleeve a which is opened to the right is fixedly connected between the inner walls of the upper end and the lower end of the gas pipe near the left side, the inner threads of the fixing sleeve a are connected with fixing rings for abutting between the inner walls of the two ends of the gas pipe and the fixing rings, the notch parts of the two gas pipes can be positioned on the same horizontal plane through the fixing rings, the welding between the two gas pipes can be tidier, and the fixing rings can shield the welding seam between the two gas pipes, so that the condition of breakage caused by direct pressing of the welding seam by high-pressure natural gas in the gas pipe is avoided.
Description
Technical Field
The utility model belongs to the technical field related to natural gas pipelines, and particularly relates to a natural gas pipeline with a flexible coating.
Background
After natural gas exploitation comes, carry the output natural gas of exploitation place to urban gas distribution center or enterprise through the passageway and use, but when butt joint is carried out between many natural gas pipelines, the diameter of pipeline is great, leads to the pipeline not neat enough at the interface when the butt joint to the unstable welding seam that appears connecting between two pipelines is comparatively weak when the welding to appear, the condition emergence of the damaged gas leakage of welding seam appears when carrying high-pressure natural gas.
Disclosure of Invention
The utility model aims to provide a natural gas pipeline with a flexible coating, which solves the problem that the joint in butt joint is not tidy enough, so that an unstable welding seam for connecting two pipelines is weak in welding.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a natural gas pipeline with flexible coating comprises a gas pipe and a drag reduction layer a arranged on the circular inner wall of the gas pipe;
a flexible layer is fixedly connected to the circular inner wall of the drag reduction layer a;
the drag reduction layer b is fixedly connected to the circular inner wall of the flexible layer, and the drag reduction layer b and the drag reduction layer a are matched to slow down the resistance of natural gas in the gas pipe during transportation;
a fixing sleeve a which is opened rightward is fixedly connected between the inner walls at the upper end and the lower end of the gas pipe and is close to the left side, and a fixing ring is connected with the inner threads of the fixing sleeve a so as to be in butt joint with the inner walls at the two ends of the gas pipe.
Preferably, a fixing sleeve b which is open to the left is fixedly connected between the inner walls of the upper end and the lower end of the gas pipe and is close to the left, and soft cushions are fixedly connected to the outer walls of the left end and the right end of the fixing ring so as to fill gaps between the two ends of the fixing ring and the fixing sleeve a and the fixing sleeve b.
Preferably, the right side of the fixing ring is fixedly connected with the fixing sleeve b in a clamping manner, and the fixing ring is made of a seamless steel tube material.
Preferably, the round outer wall of the gas pipe is provided with a heat insulation coating for isolating the temperature transmission, and the outer wall of the upper end of the heat insulation coating is provided with a heat insulation layer for blocking the temperature transmission.
Preferably, the upper end outer wall of the heat preservation layer is provided with a heat insulation layer for transmitting the outside temperature inwards in a pattern, and the upper end outer wall of the heat insulation layer is fixedly connected with a protective layer.
Preferably, the heat insulation layer is made of polyurethane material, and the heat insulation layer is made of asbestos material.
Preferably, the drag reduction layer a is made of a polyacrylamide material, and the flexible layer is made of a hydrogel material.
Preferably, the drag reduction layer b is made of hydroxypropyl guar gum material, and the drag reduction layer a, the flexible layer and the drag reduction layer b are connected in a mixed mode by adopting an adhesive.
Compared with the prior art, the utility model provides the natural gas pipeline with the flexible coating, which has the following beneficial effects:
1. through installing solid fixed ring, when dock between two gas-supply pipes, the accessible is pegged graft respectively the both ends of solid fixed ring in the inside of two gas-supply pipes for can be in on same horizontal plane between the incision department of two gas-supply pipes, can be more neat when welding between two gas-supply pipes, and gu fixed ring can shelter from the welding seam between two gas-supply pipes, avoid the high pressure natural gas in the gas-supply pipe directly to press the condition emergence that leads to the welding seam damage to the welding seam, can make simultaneously increase drag reduction layer a and drag reduction layer b on two gas-supply pipe inner walls, the upper and lower difference in interface department between drag reduction layer a and drag reduction layer b is littleer, and the resistance when making contact between the gas-supply pipe inner wall of adhesion drag reduction layer a and drag reduction layer b and the natural gas after the pressurization.
2. Through installation heat preservation and thermal insulation layer, when the gas-supply pipe buries in the soil, the lower and higher temperature of the temperature environment of buries department and the inside temperature environment of soil can be blocked by the thermal insulation layer, avoids higher temperature transmission to the inside of gas-supply pipe, leads to the inside natural gas of gas-supply pipe to appear expanding under the influence of high temperature and explodes the condition appearance, also can avoid the inside lower natural gas temperature of gas-supply pipe to run off the condition emergence under the effect of heat preservation simultaneously.
Drawings
Fig. 1 is a schematic view of a natural gas pipeline with a flexible coating according to the present utility model.
FIG. 2 is a schematic partial sectional elevation view of a gas delivery conduit area according to the present utility model.
FIG. 3 is a schematic view of a partial structure of a front section of a fixing ring area according to the present utility model.
FIG. 4 is a schematic view of a partial structure of the fixing sleeve b in the area of the front section of the present utility model.
Fig. 5 is a schematic view of a partial structure of a protective layer region in front section according to the present utility model.
In the figure: 1. a gas pipe; 2. a protective layer; 3. a fixing ring; 4. drag reduction layer a; 5. a flexible layer; 6. a drag reduction layer b; 7. a fixed sleeve a; 8. a soft cushion; 9. a fixed sleeve b; 10. a thermal insulation coating; 11. a heat preservation layer; 12. and a heat insulation layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a natural gas pipeline with a flexible coating, as shown in figures 1-5, which comprises a gas pipe 1 and a drag reduction layer a4 arranged on the circular inner wall of the gas pipe 1;
the circular inner wall of the drag reduction layer a4 is fixedly connected with a flexible layer 5;
the drag reduction layer b6 is fixedly connected to the circular inner wall of the flexible layer 5, and the drag reduction layer b 4 is matched with the natural gas in the gas pipe 1 to slow down the resistance during transportation of the natural gas, after the natural gas is extracted from the extraction place, a natural gas conveying pipeline is erected into a city in the extraction place, the natural gas can circulate in the gas pipe 1, and the natural gas can contact the drag reduction layer a4 and the drag reduction layer b6 to slow down the resistance between the natural gas and the inner wall of the gas pipe 1 when circulating, so that the natural gas can circulate rapidly;
the fixed sleeve a7 which is close to the right opening is fixedly connected between the inner walls of the upper end and the lower end of the gas pipe 1 and is in right opening, the fixed ring 3 is connected with the inner threads of the fixed sleeve a7 so as to be in butt joint with the inner walls of the two ends of the gas pipe 1 and the fixed ring 3, when the natural gas pipe 1 is spliced, the fixed ring 3 can be spliced in the fixed sleeve a7 on the inner wall of the gas pipe 1 for threaded connection and fixation, the other gas pipe 1 is sleeved on the fixed ring 3, so that the notch between the two gas pipes 1 is positioned on the same horizontal plane, and the welding can be more accurate.
As shown in fig. 3 and 4, a fixing sleeve b9 which is left open is fixedly connected between the inner walls of the upper end and the lower end of the gas pipe 1 and is close to the left side, when the fixing ring 3 and the other gas pipe 1 are inserted, the right side of the fixing ring 3 is inserted into the fixing sleeve b9 in the other gas pipe 1 to be clamped, so that the two gas pipes 1 can be aligned in a rotating way, soft cushions 8 are fixedly connected to the outer walls of the left end and the right end of the fixing ring 3 to fill gaps between the two ends of the fixing ring 3 and the fixing sleeve a7 and the fixing sleeve b9, natural gas cannot pass through the gaps between the fixing ring 3 and the fixing sleeve a7 and the fixing sleeve b9, and the situation that the welding lines are damaged due to impact of high-pressure natural gas on the welding lines between the two gas pipes 1 is avoided.
As shown in fig. 3 and 4, the right side of the fixing ring 3 is fixedly connected with the fixing sleeve b9 in a clamping manner, so that the other gas pipe 1 can be quickly and conveniently connected with the fixing ring 3, the fixing ring 3 is made of a seamless steel pipe material, no gap exists on the surface, and the damage of the fixing ring 3 can not be caused when high-pressure natural gas circulates in the gas pipe 1.
As shown in fig. 5, the circular outer wall of the gas pipe 1 is provided with a thermal insulation coating 10 to isolate the transmission of temperature, the outer wall of the upper end of the thermal insulation coating 10 is provided with a thermal insulation layer 11 to block the transmission of temperature, the outer wall of the upper end of the thermal insulation layer 11 is provided with a thermal insulation layer 12 to transmit inwards the outside temperature of the pattern, the outer wall of the upper end of the thermal insulation layer 12 is fixedly connected with a protective layer 2, when the gas pipe 1 is buried in the ground, if the geographic environment temperature of the buried place is raised, the high temperature can be blocked by the thermal insulation layer 12 when being transmitted to the inside of the gas pipe 1, the thermal insulation layer 12 does not have thermal conductivity, the transmission of temperature can be isolated, and natural gas with lower internal temperature of the gas pipe 1 can be subjected to thermal insulation operation by the thermal insulation layer 11 when being transmitted, so that the temperature loss speed is avoided.
As shown in fig. 5, the heat-insulating layer 11 is made of polyurethane material, so that the heat-insulating layer has good heat-insulating performance, when the temperature contacts the heat-insulating layer 11, the heat-insulating layer 12 can isolate the temperature from being transmitted outwards, and the heat-insulating layer 12 is made of asbestos material, so that the temperature transmission can be effectively stopped, and the condition that the external high temperature is transmitted to the inside of the air pipe 1 can be avoided.
As shown in FIG. 1, the drag reduction layer a4 is made of a polyacrylamide material, the flexible layer 5 is made of a hydrogel material, the drag reduction layer b6 is made of a hydroxypropyl guar gum material, the drag reduction layer a4, the flexible layer 5 and the drag reduction layer b6 are connected in a mixed mode by using an adhesive, and the high-pressure natural gas inside the gas pipe 1 can reduce resistance between the natural gas and the inner wall of the gas pipe 1 when flowing through the mixing of the drag reduction layer a4, the flexible layer 5 and the drag reduction layer b 6.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. A natural gas pipeline with a flexible coating comprises a gas pipe (1) and a drag reduction layer a (4) arranged on the circular inner wall of the gas pipe (1);
a flexible layer (5) is fixedly connected to the circular inner wall of the drag reduction layer a (4);
the circular inner wall of the flexible layer (5) is fixedly connected with a drag reduction layer b (6) and the drag reduction layer a (4) to be matched with each other so as to slow down the resistance of natural gas in the gas pipe (1) during transportation;
the method is characterized in that: a right-opening fixing sleeve a (7) is fixedly connected between the inner walls of the upper end and the lower end of the gas pipe (1) and close to the left, and a fixing ring (3) is connected with the inner threads of the fixing sleeve a (7) so as to be in butt joint with the inner walls of the two ends of the gas pipe (1) and the fixing ring (3).
2. A natural gas pipeline with flexible coating according to claim 1, characterized in that: the utility model discloses a gas-supply pipe, including fixed ring (3), fixed sleeve (a) and fixed sleeve (b) that are close to left side fixedly connected with left opening between the upper and lower both ends inner wall of gas-supply pipe (1), the both ends outer wall all fixedly connected with cushion (8) about fixed ring (3) in order to fill the gap between fixed ring (3) both ends and fixed sleeve a (7) and fixed sleeve b (9).
3. A natural gas pipeline with flexible coating according to claim 1 or 2, characterized in that: the right side of the fixed ring (3) is fixedly connected with the fixed sleeve b (9) in a clamping manner, and the fixed ring (3) is made of a seamless steel tube material.
4. A natural gas pipeline with flexible coating according to claim 1, characterized in that: the circular outer wall of the gas pipe (1) is provided with a heat insulation coating (10) for isolating temperature transmission, and the outer wall of the upper end of the heat insulation coating (10) is provided with a heat insulation layer (11) for blocking temperature transmission.
5. A natural gas pipeline having a flexible coating according to claim 4, wherein: the outer wall of the upper end of the heat preservation layer (11) is provided with a heat insulation layer (12) which is transmitted inwards with the external temperature of the pattern, and the outer wall of the upper end of the heat insulation layer (12) is fixedly connected with a protective layer (2).
6. A natural gas pipeline having a flexible coating according to claim 5, wherein: the heat insulation layer (11) is made of polyurethane materials, and the heat insulation layer (12) is made of asbestos materials.
7. A natural gas pipeline with flexible coating according to claim 1, characterized in that: the drag reduction layer a (4) is made of a polyacrylamide material, and the flexible layer (5) is made of a hydrogel material.
8. A natural gas pipeline with flexible coating according to claim 1, characterized in that: the drag reduction layer b (6) is made of hydroxypropyl guar gum material, and the drag reduction layer a (4), the flexible layer (5) and the drag reduction layer b (6) are connected in a mixed mode through an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320646624.5U CN220204951U (en) | 2023-03-28 | 2023-03-28 | Natural gas pipeline with flexible coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320646624.5U CN220204951U (en) | 2023-03-28 | 2023-03-28 | Natural gas pipeline with flexible coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204951U true CN220204951U (en) | 2023-12-19 |
Family
ID=89139664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320646624.5U Active CN220204951U (en) | 2023-03-28 | 2023-03-28 | Natural gas pipeline with flexible coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204951U (en) |
-
2023
- 2023-03-28 CN CN202320646624.5U patent/CN220204951U/en active Active
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| GR01 | Patent grant |