CN217030253U - Anti-static natural gas conveying anti-corrosion steel pipe - Google Patents
Anti-static natural gas conveying anti-corrosion steel pipe Download PDFInfo
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- CN217030253U CN217030253U CN202220687430.5U CN202220687430U CN217030253U CN 217030253 U CN217030253 U CN 217030253U CN 202220687430 U CN202220687430 U CN 202220687430U CN 217030253 U CN217030253 U CN 217030253U
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Abstract
The utility model relates to the field of natural gas conveying pipelines, in particular to an anti-static natural gas conveying anti-corrosion steel pipe. The single tubes comprise seamless tubes, inner lining tubes are fixedly and hermetically connected to the inner edges of the seamless tubes, outer sleeves are fixedly and hermetically sleeved on the outer edges of the seamless tubes, the seamless tubes penetrate through the outer sleeves, the end parts of the inner lining tubes retract into the end parts of the seamless tubes on one side, first conical surfaces are machined at the left ends and the right ends of the inner edges of the lining tubes, and welding seam grooves are machined at the left ends and the right ends of the outer edges of the seamless tubes; two adjacent single tubes are connected through a connecting sleeve, and an end sleeve is fixed at the end part of the anti-static natural gas conveying anti-corrosion steel tube. According to the utility model, the connecting sleeve and the end sleeve are arranged, so that the end part of the lining pipe can be prevented from being separated from the seamless pipe, the seamless pipe can be prevented from being corroded, a certain distance is arranged between the end part of the lining pipe and the end part of the outer sleeve and the end part of the seamless pipe on one side of the end part of the outer sleeve, the welding connection can be carried out, the laying cost can be reduced, and the natural gas conveying process can be prevented from static electricity.
Description
Technical Field
The utility model relates to the field of natural gas conveying pipelines, in particular to an anti-static natural gas conveying anti-corrosion steel pipe.
Background
The pipeline that natural gas transport used is generally the composite tube, including seamless pipe, fix the interior bushing pipe in seamless pipe and fix the outer tube in seamless pipe outside, outer tube and interior bushing pipe are the tubular product of pp or pvc material generally, consequently, can prevent that seamless pipe from being corroded, can not carry out welded connection when the composite tube connects, generally need sealing joint to connect, sealing joint and composite tube need closely cooperate, thereby prevent that natural gas from leaking, consequently, the cost of connecting is higher, in the use, the tip of interior bushing pipe is easy to be thrown off between with seamless pipe, thereby lead to seamless pipe to be corroded, reduce natural gas transport pipeline's life, the natural gas is combustible gas, consequently, it is also very important to prevent static in the transportation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems that the end part of a lining pipe can be prevented from being separated from a seamless pipe, the seamless pipe is prevented from being corroded, a certain distance is arranged between the end part of the lining pipe and the end part of an outer sleeve pipe and the end part of the seamless pipe on one side of the end part of the outer sleeve pipe, welding connection can be carried out, laying cost can be reduced, static electricity can be prevented in the natural gas conveying process, and safety is high.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows:
an anti-static natural gas conveying anti-corrosion steel pipe comprises a plurality of single pipes, wherein each single pipe comprises a seamless pipe, the inner edge of each seamless pipe is fixedly and hermetically connected with an inner lining pipe, the outer edge of each seamless pipe is fixedly and hermetically sleeved with an outer sleeve, each seamless pipe penetrates through the outer sleeve, the end part of each inner lining pipe retracts into the end part of the seamless pipe on one side of the inner lining pipe, the left end and the right end of the inner edge of each inner lining pipe are respectively provided with a first conical surface, and the left end and the right end of the outer edge of each seamless pipe are respectively provided with a welding seam groove; two adjacent single pipes are connected through a connecting sleeve, an end sleeve is fixed at the end part of an anti-static natural gas conveying anti-corrosion steel pipe, the end part of the connecting sleeve is inserted in a seamless pipe on one side of the connecting sleeve, second conical surfaces are machined at the end part of the connecting sleeve, the second conical surfaces of the connecting sleeve are in close fit with a first conical surface of a lining pipe on one side of the connecting sleeve, a clamping ring is fixed on the connecting sleeve between the two seamless pipes and is fixedly connected with the seamless pipes on two sides of the clamping ring, the end sleeve is inserted in the seamless pipe, a third conical surface is machined at one end, facing the lining pipe, of the end sleeve, the third conical surface is in close fit with a first conical surface on the lining pipe on one side of the third conical surface, an end ring is fixed on the end sleeve, the end ring is fixedly connected with the seamless pipe, and a flange ring is fixed at one end, facing away from the lining pipe, of the end sleeve.
Specifically, the inner edge of the end sleeve, the inner edge of the lining pipe and the inner edge of the connecting sleeve are coated with antistatic coatings.
Specifically, the clamping ring is fixedly connected with the seamless pipes on the two sides of the clamping ring in a welding mode.
Specifically, the end ring is fixedly connected with the seamless pipe on one side in a welding mode.
Specifically, the outer sleeves of two adjacent single pipes are fixedly and hermetically connected through a first outer sleeve, and the flange ring is fixedly and hermetically connected with the outer sleeve of the single pipe on one side of the flange ring through a second outer sleeve.
Specifically, the outer edges of the second outer sleeve, the outer sleeve and the first outer sleeve are coated with antistatic layers.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through the arrangement of the connecting sleeve and the end sleeve, the disconnection between the end part of the lining pipe and the seamless pipe can be prevented, the corrosion of the seamless pipe can be prevented, a certain distance is arranged between the end part of the lining pipe and the end part of the outer sleeve and the end part of the seamless pipe on one side of the end part of the outer sleeve, the welding connection can be carried out, the laying cost can be reduced, the static electricity can be prevented in the natural gas conveying process, and the safety is high.
Drawings
Fig. 1 is a cross-sectional view of a single tube.
Fig. 2 is a schematic structural diagram of the connection of two single tubes.
Fig. 3 is a schematic structural diagram of the connecting sleeve.
Fig. 4 is a schematic structural view of the end sleeve.
Detailed Description
As shown in fig. 1-4, an anti-static natural gas transportation anti-corrosion steel pipe comprises a plurality of single pipes, wherein each single pipe comprises a seamless pipe 1, an inner lining pipe 3 is fixedly and hermetically connected to the inner edge of the seamless pipe 1, an outer sleeve pipe 4 is fixedly and hermetically sleeved on the outer edge of the seamless pipe 1, the seamless pipe 1 penetrates through the outer sleeve pipe 4, the end part of the inner lining pipe 3 retracts into the end part of the seamless pipe 1 on one side of the inner lining pipe, first conical surfaces 5 are respectively processed at the left end and the right end of the inner edge of the inner lining pipe 3, and welding seam grooves 2 are respectively processed at the left end and the right end of the outer edge of the seamless pipe 1; two adjacent single pipes are connected through a connecting sleeve 6, an end sleeve 9 is fixed at the end part of an anti-static natural gas conveying anti-corrosion steel pipe, the end part of the connecting sleeve 6 is inserted into the seamless pipe 1 on one side, both end parts of the connecting sleeve 6 are provided with second conical surfaces 13, the second conical surfaces 13 of the connecting sleeve 6 are in close fit with the first conical surface 5 of the inner lining pipe 3 on one side, a clamping ring 7 is fixed on the connecting sleeve 6 between the two seamless pipes 1, the clamping ring 7 is fixedly connected with the seamless pipes 1 on two sides in a welding manner, the end sleeve 9 is inserted into the seamless pipe 1, a third conical surface 14 is processed at one end, facing the inner lining pipe 3, of the end sleeve 9, the third conical surface 14 is in close fit with the first conical surface 5 of the inner lining pipe 3 on one side, an end ring 11 is fixed on the end sleeve 9, the end ring 11 is fixedly connected with the seamless pipe 1 on one side in a welding manner, and a flange ring 10 is fixed at one end, facing away from the inner lining pipe 1, of the end sleeve 9.
The inner edge of the end sleeve 9, the inner edge of the inner lining pipe 3 and the inner edge of the connecting sleeve 6 are coated with antistatic coatings, the outer sleeves 4 of two adjacent single pipes are fixedly and hermetically connected through a first outer sleeve 8, the flange ring 10 and the outer sleeve 4 of one single pipe on one side of the flange ring are fixedly and hermetically connected through a second outer sleeve 12, and the outer edges of the second outer sleeve 12, the outer sleeve 4 and the first outer sleeve 8 are coated with antistatic coatings.
When the single pipe is assembled, the connecting sleeve 6 is inserted into the seamless pipes 1 on two sides of the single pipe, the seamless pipes 1 tightly abut against the clamping ring 7, the second conical surface 13 on the connecting sleeve 6 tightly abuts against the first conical surface 5 of the lining pipe 3 on one side of the connecting sleeve, the end part of the connecting sleeve 6 can extrude the end part of the lining pipe 3 on one side of the connecting sleeve, the outer edge of the end part of the lining pipe 3 tightly abuts against the inner edge of the seamless pipe 1, then the adjacent seamless pipes 1 and the clamping ring 7 are fixedly connected in a welding mode, and in the welding process, the seamless pipe 1 and the clamping ring 7 are connected more stably due to the welding seam groove 2 arranged on the seamless pipe 1, a certain distance is reserved between the end part of the lining pipe 3 and the end part of the outer sleeve 4 and the end part of the seamless pipe 1 on one side of the lining pipe, and the end part of the outer sleeve 4 can be prevented from being damaged by heating in the welding process. When the end sleeve 9 is installed, the end sleeve 9 is inserted into the seamless tube 1, the end ring 11 is tightly abutted against the seamless tube 1 on one side, the third conical surface 14 on the end sleeve 9 is utilized to tightly abut and match the first conical surface 5 of the inner liner tube 3 on one side, so that the outer edge of the end part of the inner liner tube 3 on one side of the end sleeve 9 is tightly abutted against the inner edge of the seamless tube 1, then the end ring 11 is fixedly connected with the seamless tube 1 on one side in a welding manner, then the first outer sleeve 8 is sequentially sleeved on the two adjacent outer sleeves 4, the first outer sleeve 8 is fixedly and hermetically connected with the outer sleeve 4, and then the flange ring 10 is fixedly and hermetically connected with the outer sleeve 4 on one side by utilizing the second outer sleeve 12.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. An anti-static natural gas conveying anti-corrosion steel pipe comprises a plurality of single pipes, wherein each single pipe comprises a seamless pipe, the inner edge of each seamless pipe is fixedly and hermetically connected with an inner lining pipe, and the outer edge of each seamless pipe is fixedly and hermetically sealed and sleeved with an outer sleeve; two adjacent single pipes are connected through a connecting sleeve, an end sleeve is fixed at the end part of an anti-static natural gas conveying anti-corrosion steel pipe, the end part of the connecting sleeve is inserted in a seamless pipe on one side of the connecting sleeve, second conical surfaces are machined at the end part of the connecting sleeve, the second conical surfaces of the connecting sleeve are in close fit with a first conical surface of a lining pipe on one side of the connecting sleeve, a clamping ring is fixed on the connecting sleeve between the two seamless pipes and is fixedly connected with the seamless pipes on two sides of the clamping ring, the end sleeve is inserted in the seamless pipe, a third conical surface is machined at one end, facing the lining pipe, of the end sleeve, the third conical surface is in close fit with a first conical surface on the lining pipe on one side of the third conical surface, an end ring is fixed on the end sleeve, the end ring is fixedly connected with the seamless pipe, and a flange ring is fixed at one end, facing away from the lining pipe, of the end sleeve.
2. The anti-static natural gas transmission anticorrosion steel pipe as claimed in claim 1, wherein the inner edge of the end sleeve, the inner edge of the inner lining pipe and the inner edge of the connecting sleeve are coated with anti-static coatings.
3. The anti-static natural gas conveying anti-corrosion steel pipe as claimed in claim 1, wherein the clamping ring is fixedly connected with the seamless pipes on two sides of the clamping ring in a welding manner.
4. The anti-static natural gas transportation anti-corrosion steel pipe as claimed in claim 1, wherein the end ring is fixedly welded to the seamless pipe on one side.
5. The anti-static natural gas conveying anti-corrosion steel pipe as claimed in claim 1, wherein the outer sleeves of two adjacent single pipes are fixedly and hermetically connected through a first outer sleeve, and the flange ring is fixedly and hermetically connected with the outer sleeve of the single pipe on one side of the flange ring through a second outer sleeve.
6. The anti-static natural gas transportation anti-corrosion steel pipe as claimed in claim 5, wherein the outer edges of the second outer sleeve, the outer sleeve and the first outer sleeve are coated with anti-static layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220687430.5U CN217030253U (en) | 2022-03-28 | 2022-03-28 | Anti-static natural gas conveying anti-corrosion steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220687430.5U CN217030253U (en) | 2022-03-28 | 2022-03-28 | Anti-static natural gas conveying anti-corrosion steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217030253U true CN217030253U (en) | 2022-07-22 |
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ID=82412913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220687430.5U Active CN217030253U (en) | 2022-03-28 | 2022-03-28 | Anti-static natural gas conveying anti-corrosion steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217030253U (en) |
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2022
- 2022-03-28 CN CN202220687430.5U patent/CN217030253U/en active Active
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