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Water supply and discharge pipe with stainless steel bar reinforcing layer and manufacturing method thereof

A production method, stainless steel technology, applied in the direction of pipeline protection, pipeline damage/abrasion prevention, pipeline anticorrosion/rust protection, etc., can solve the problems of danger, lack of protection, large expansion of large-diameter PCCP pipelines, etc., to achieve durability Strong corrosion ability, high mechanical strength, reasonable production process and structure

Inactive Publication Date: 2017-01-11
山东省呈祥电工电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These are the expectations of the developers when developing this product, and it is also the performance of this product for a period of time when it is put into operation; but as time goes by, the actual performance of PCCP is very different from the expectation, and the original advantages of corrosion resistance are not as good as the design ideal
The main failure mode of PCCP is the bursting of steel wire corrosion pipe. The cement mortar layer protecting the steel wire itself is fragile, and it cannot be protected during operation. Its life becomes the determining factor of PCCP life. The "expansion" of large-diameter PCCP pipelines with high internal pressure big, dangerous

Method used

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  • Water supply and discharge pipe with stainless steel bar reinforcing layer and manufacturing method thereof

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Embodiment 1

[0041] A method for manufacturing a water supply and drainage pipeline provided with a reinforced layer of stainless steel bars, comprising the following steps:

[0042] S1, choose a suitable stainless steel tube, and weld the socket 5 and the socket 6 at both ends of the stainless steel tube;

[0043] S2, setting a wear-resistant layer 2 on the inner surface of the stainless steel pipe;

[0044] S3, winding the outer surface of the stainless steel pipe with threaded stainless steel bars to form a threaded stainless steel bar reinforcement layer 3;

[0045] S4, the product obtained in S3 is moved to the turntable, and the modified composite cement mortar is sprayed outside the threaded stainless steel reinforcement layer 3, and the modified composite cement mortar layer 4 is formed after solidification, and the modified composite cement mortar layer 4 is composed of the following weight Prepared from the number of raw materials: 80 parts of cement, 200 parts of sand, 60 parts...

Embodiment 2

[0048] A method for manufacturing a water supply and drainage pipeline provided with a reinforced layer of stainless steel bars, comprising the following steps:

[0049] S1, choose a suitable stainless steel tube, and weld the socket 5 and the socket 6 at both ends of the stainless steel tube;

[0050] S2, setting a wear-resistant layer 2 on the inner surface of the stainless steel pipe;

[0051] S3, winding the outer surface of the stainless steel pipe with threaded stainless steel bars to form a threaded stainless steel bar reinforcement layer 3;

[0052] S4, the product obtained in S3 is moved to the turntable, and the modified composite cement mortar is sprayed outside the threaded stainless steel reinforcement layer 3, and the modified composite cement mortar layer 4 is formed after solidification, and the modified composite cement mortar layer 4 is composed of the following weight Prepared from the number of raw materials: 150 parts of cement, 400 parts of sand, 100 par...

Embodiment 3

[0055] A method for manufacturing a water supply and drainage pipeline provided with a reinforced layer of stainless steel bars, comprising the following steps:

[0056] S1, choose a suitable stainless steel tube, and weld the socket 5 and the socket 6 at both ends of the stainless steel tube;

[0057] S2, setting a wear-resistant layer 2 on the inner surface of the stainless steel pipe;

[0058] S3, winding the outer surface of the stainless steel pipe with threaded stainless steel bars to form a threaded stainless steel bar reinforcement layer 3;

[0059] S4, the product obtained in S3 is moved to the turntable, and the modified composite cement mortar is sprayed outside the threaded stainless steel reinforcement layer 3, and the modified composite cement mortar layer 4 is formed after solidification, and the modified composite cement mortar layer 4 is composed of the following weight Prepared from the number of raw materials: 115 parts of cement, 300 parts of sand, 80 part...

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PUM

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Abstract

Provided are a water supply and discharge pipe with a stainless steel bar reinforcing layer and a manufacturing method thereof. The water supply and discharge pipe comprises a stainless steel impermeable layer, the inner surface of the stainless steel impermeable layer is provided with an abrasion-resistant layer, the outer surface of the stainless steel impermeable layer is provided with the thread type stainless steel bar reinforcing layer, and the surface of the thread type stainless steel bar reinforcing layer is provided with a modified composite cement mortar layer. The water supply and discharge pipe is reasonable in production process and structure, a novel layered structure and process are adopted, corrosion resistance of a product is high, and the mechanical strength is high.

Description

[0001] Technical field: [0002] The invention relates to a water supply and drainage pipeline provided with a stainless steel reinforcement layer and a manufacturing method thereof. [0003] Background technique: [0004] In the 1940s, the French Bonner Pipe Company first designed and manufactured the prestressed steel cylinder cement mortar pipe (PCCP). Europe and the United States are competing to develop PCCP. The United States is the country that produces and uses the most PCCP. So far, the United States has used PCCP for 28,000km, with a maximum diameter of 7,600mm. In the past ten years, PCCP pipes have developed rapidly in China. According to the statistical report of the industry association, in 2010, China's annual production capacity has exceeded 3000km, and the annual production volume has reached 1500km (the highest annual output in the United States was 3,563,327 feet in 1971, about 1100km). The usage has reached 8000 kilometers. China is now the country with th...

Claims

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Application Information

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IPC IPC(8): F16L9/14F16L57/06F16L58/02F16L25/10
CPCF16L9/14F16L25/10F16L57/06F16L58/02
Inventor 李呈祥李先众李世伟邵立忠李先举姚春林陈建立
Owner 山东省呈祥电工电气有限公司