CN209781989U - integrated steel-plastic conversion elbow for gas inlet pipe - Google Patents
integrated steel-plastic conversion elbow for gas inlet pipe Download PDFInfo
- Publication number
- CN209781989U CN209781989U CN201920115017.XU CN201920115017U CN209781989U CN 209781989 U CN209781989 U CN 209781989U CN 201920115017 U CN201920115017 U CN 201920115017U CN 209781989 U CN209781989 U CN 209781989U
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- CN
- China
- Prior art keywords
- pipe
- steel
- conversion
- gas inlet
- elbow
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a conversion return bend is moulded to gas inlet pipe integral type steel, including the return bend body, the return bend body is moulded the conversion pipe including steel, it includes polyethylene portion and steel portion to mould the conversion pipe, polyethylene portion and steel portion are connected mutually, steel portion other end fixed connection is equipped with seamless steel pipe, seamless steel pipe includes that the number is two straight tube section, with just mould the straight tube section length that the conversion pipe links to each other for being greater than 0.5m, two link to each other through the return bend portion between the straight tube section. Compared with the prior art, the utility model the advantage lies in: the structure is reasonable, and the underground part and the overground part of the gas introducing pipe are organically combined into a whole.
Description
Technical Field
The utility model relates to a gas inlet tube tubular product technical field, in particular to conversion return bend is moulded to gas inlet tube integral type steel.
Background
In recent years, along with the development of gas industry, polyethylene pipes for gas are commonly adopted by gas companies in various places, the polyethylene pipes are not allowed to be arranged on the ground according to the specification, during field construction, the joints of steel pipes of the introducing pipes and steel pipes for steel-plastic conversion are easily damaged by the influence of temperature and the like during welding, a welding line needs to be subjected to flaw detection, the investment is increased, the joints need to be subjected to field corrosion prevention, the corrosion prevention effect is poor, the gas introducing pipes are frequently corroded seriously in various places, and gas leakage accidents are caused. Therefore, a technical scheme of a gas inlet pipe integrated steel-plastic conversion 90-degree bent pipe is specially provided.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough among the prior art, the utility model provides a conversion return bend is moulded to gas introduction pipe integral type steel, its is rational in infrastructure, carries out the underground part and the aboveground part of gas introduction pipe organic combination as an organic whole.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a conversion return bend is moulded to gas inlet pipe integral type steel, includes the return bend body, the return bend body is moulded the conversion pipe including steel, it includes polyethylene portion and steel portion to mould the conversion pipe, polyethylene portion and steel portion are connected mutually, steel portion other end fixed connection is equipped with seamless steel pipe, seamless steel pipe includes that the number is two straight tube section, with the straight tube section length that the conversion pipe links to each other is moulded to steel is greater than 0.5m, two link to each other through the return bend portion between the straight tube section.
As an improvement: the polyethylene part adopts SDR11 series, and is made of PE80 or PE 100.
As an improvement: the bent pipe portion is a simmer bent pipe, the bent pipe portion is 90 degrees, and the curvature radius is 3.5D.
As an improvement: the pipe wall thickness of the seamless steel is larger than 3.5mm, and a reinforced double-layer epoxy powder coating or a reinforced 3PE anticorrosive coating is arranged outside the seamless steel pipe.
As an improvement: the length of the straight pipe section far away from the steel-plastic replacement pipe is 1200 mm.
Compared with the prior art, the utility model the advantage lies in: the gas inlet pipe can meet the requirements of 'urban gas design standard' and 'urban gas indoor engineering construction and quality acceptance standard', the connection quality is improved, the corrosion resistance is enhanced, the service life is prolonged, the construction speed is accelerated, and the district courtyard gas pipe network can operate safely and stably.
Drawings
Fig. 1 is a schematic structural view of the gas inlet pipe integrated steel-plastic conversion elbow pipe of the present invention;
Reference symbol comparison table:
The steel pipe comprises a 1-elbow body, a 2-steel-plastic conversion pipe, a 21-polyethylene part, a 22-steel part, a 3-seamless steel pipe, a 31-straight pipe section and a 32-elbow part.
Detailed Description
the following describes the present invention with reference to the accompanying drawings.
As shown in figure 1, a conversion return bend is moulded to gas inlet pipe integral type steel, including return bend body 1, its characterized in that: the elbow pipe body 1 includes that the steel is moulded the conversion tube 2, the steel is moulded the conversion tube 2 and is included polyethylene portion 21 and steel portion 22, polyethylene portion 21 and steel portion 22 are connected, steel portion 22 other end fixed connection is equipped with seamless steel pipe 3, seamless steel pipe 3 includes that the number is two straight tube section 31, with the straight tube section 31 length that the steel is moulded the conversion tube 2 and links to each other is for being greater than 0.5m, two through elbow portion 32 between the straight tube section 31.
The polyethylene part 21 is made of SDR11 series and is made of PE80 or PE 100.
The bent pipe portion 32 is a simmer bend, the bent pipe portion 32 is 90 degrees, and the curvature radius is 3.5D.
The pipe wall thickness of the seamless steel pipe 3 is larger than 3.5mm, and a reinforced double-layer epoxy powder coating or a reinforced 3PE anticorrosive coating is arranged outside the seamless steel pipe 3.
The length of the straight pipe section 31 far away from the steel plastic replacement pipe 2 is 1200 mm.
When the utility model is implemented, the elbow pipe body 1 is connected with the buried polyethylene pipeline through the steel-plastic conversion pipe 2, the wall thickness of the polyethylene part 21 of the steel-plastic conversion pipe 2 adopts SDR11 series, the material of the steel-plastic conversion pipe is consistent with the material of the buried polyethylene pipeline, if PE80 or PE100 is selected, the straight pipe section 31 connected with the steel-plastic conversion pipe 2 ensures that the distance between the steel-plastic conversion pipe and the building foundation meets the requirement of the specification and is not less than 0.5m, the elbow pipe part 32 adopts special elbow pipe equipment to carry out hot bending for 90 degrees, the curvature radius is 3.5D, the end of the seamless steel pipe 3 of the gas inlet pipe far away from the steel-plastic conversion pipe 2 is welded with the ground steel pipe, the wall thickness of the whole seamless steel pipe 3 is not less than 3.5mm, the anticorrosion layer outside the steel pipe adopts the reinforced double-layer epoxy powder coating or the reinforced 3PE coating for anticorrosion, the prefabrication the integral pipe fitting, the inside, the gas inlet pipe is ensured to meet the requirements of 'urban gas design specification' and 'urban gas indoor engineering construction and quality acceptance specification', the connection quality is improved, the corrosion resistance is enhanced, the service life is prolonged, the construction speed is accelerated, and the district courtyard gas pipe network can operate safely and stably.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a conversion return bend is moulded to gas inlet pipe integral type steel, includes return bend body (1), its characterized in that: the utility model discloses a steel-plastic pipe, including elbow pipe body (1), conversion pipe (2) is moulded including steel to the return bend body (1), steel is moulded conversion pipe (2) and is included polyethylene portion (21) and steel portion (22), polyethylene portion (21) and steel portion (22) are connected, steel portion (22) other end fixed connection is equipped with seamless steel pipe (3), seamless steel pipe (3) are straight tube section (31) that the number is two, with straight tube section (31) length that conversion pipe (2) links to each other is for being greater than 0.5m, two through bent pipe portion (32) between straight tube section (31).
2. The gas inlet pipe integrated steel-plastic conversion elbow pipe according to claim 1, characterized in that: the polyethylene part (21) is made of SDR11 series and is made of PE80 or PE 100.
3. The gas inlet pipe integrated steel-plastic conversion elbow pipe according to claim 1, characterized in that: elbow portion (32) are the bending machine return bend, elbow portion (32) are 90, and curvature radius is 3.5D.
4. The gas inlet pipe integrated steel-plastic conversion elbow pipe according to claim 1, characterized in that: the pipe wall thickness of the seamless steel pipe (3) is larger than 3.5mm, and a reinforced double-layer epoxy powder coating or a reinforced 3PE anticorrosive coating is arranged outside the seamless steel pipe (3).
5. The gas inlet pipe integrated steel-plastic conversion elbow pipe according to claim 1, characterized in that: the length of the straight pipe section (31) far away from the steel-plastic replacement pipe (2) is 1200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115017.XU CN209781989U (en) | 2019-01-23 | 2019-01-23 | integrated steel-plastic conversion elbow for gas inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920115017.XU CN209781989U (en) | 2019-01-23 | 2019-01-23 | integrated steel-plastic conversion elbow for gas inlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781989U true CN209781989U (en) | 2019-12-13 |
Family
ID=68793387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920115017.XU Expired - Fee Related CN209781989U (en) | 2019-01-23 | 2019-01-23 | integrated steel-plastic conversion elbow for gas inlet pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781989U (en) |
-
2019
- 2019-01-23 CN CN201920115017.XU patent/CN209781989U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20220123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |