Steel pipe

A technology for steel pipes and butt-jointed steel pipes, which is applied in the direction of pipes, branch pipelines, pipeline protection, etc., can solve the problems of high cost and difficulty in manufacturing seamless steel pipe layers, and achieve the effects of reducing manufacturing costs, low cost and simple manufacturing.

Inactive Publication Date: 2013-09-25
NINGBO KINGMAYER GROUP CHIZHOU STEEL PIPE MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the manufacturing of the seamless steel pipe layer is difficult and costly

Method used

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Examples

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Embodiment Construction

[0011] Such as Figure 1 to Figure 2 Shown is a steel pipe 100 in accordance with the present invention. The steel pipe 100 is a large steel pipe and can be used in urban sewer pipes, oil, natural gas, steam heating, hydropower stations, sewage treatment plants, thermal power plants, water supply and drainage and other occasions.

[0012] Such as figure 1 As shown, the steel pipe 100 is roughly T-shaped, including a first through pipe 1, a second through pipe 2, and a third through pipe 3, the first through pipe 1 and the second through pipe 2 are located on the same horizontal line, and the The first through pipe 1 and the second through pipe 2 are respectively located at two ends of the third through pipe 3 . Paint 4 is sprayed on the outer walls of the first through pipe 1, the second through pipe 2, and the third through pipe 3, and the paint 4 is black paint. The free end of the first through pipe 1 is provided with a first connecting portion 11 connected to the butt st...

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PUM

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Abstract

A steel pipe comprises a first through pipe, a second through pipe and a third through pipe. The first through pipe and the second through pipe are arranged on the same horizontal line, the first through pipe and the second through pipe are arranged at two ends of the third through pipe respectively, an axial lead of the first through pipe and an axial lead of the second through pipe are the same line, an axial lead of the third through pipe is perpendicular to the axial lead of the first through pipe, and paint is sprayed on the outer lateral walls of the first through pipe, the second through pipe and the third through pipe. By spraying paint at low cost on the outer lateral walls of the first through pipe, the second through pipe and the third through pipe evenly, the steel pipe is protected from corrosion, manufacturing cost is reduced, and the steel pipe is easy to manufacture.

Description

【Technical field】 [0001] The invention relates to a steel pipe, in particular to a protective structure for the steel pipe. 【Background technique】 [0002] For the prior art, please refer to the CN2375841U Chinese patent published on June 3, 2011, which discloses a steel pipe commonly used in chemical, pharmaceutical and other industries. Layers of seamless steel pipe. The use of pipes with this structure can greatly reduce the amount of stainless steel materials, and can ensure the proper corrosion resistance and service strength, and can reduce the cost by about 50%, which greatly reduces the production cost of users. However, the seamless steel pipe layer is difficult and expensive to manufacture. [0003] In view of the defective of above-mentioned technology, be necessary to improve its design really. 【Content of invention】 [0004] The technical problem to be solved by the present invention is to provide a steel pipe with low manufacturing cost. [0005] In order...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L41/02F16L58/04
Inventor 陈银儿
Owner NINGBO KINGMAYER GROUP CHIZHOU STEEL PIPE MFG
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