Pressure-bearing pipeline for water transportation and distribution and preparation method

Abstract

The invention provides a pressure-bearing pipeline for water transportation and distribution and a preparation method, and belongs to the field of pipelines, the pressure-bearing pipeline for water transportation and distribution comprises a steel cylinder concrete pipe body, a basalt fiber composite rib is spirally wound on the outer ring of the steel cylinder concrete pipe body, and protective layers are arranged on the outer ring of the basalt fiber composite rib and the end of the steel cylinder concrete pipe body; the two ends of the steel cylinder concrete pipe body are of bell and spigot structures, the basalt fiber composite bars are fixed to one end of the pipe core through the anchoring system, and the basalt fiber composite bars meeting the tension requirement are evenly and spirally wound on the outer side of the pipe core through the pipe core rotating and lifting device. The use safety performance of the pipe is greatly improved, and the quality risks that prestressed steel bars are prone to corrosion and hydrogen embrittlement corrosion and the like are solved.

Description

technical field [0001] The invention belongs to the field of pipelines, and relates to a pressure pipeline for water transmission and distribution, in particular to a pressure pipeline for water transmission and distribution and a preparation method. Background technique [0002] At present, the concrete pressure pipes used in my country's water conservancy, municipal, electric power and other industries for water transmission and distribution are prestressed steel cylinder concrete pipes (PCCP), prestressed concrete pipes (PCP, YYG, SYG) and other pipe structure types. Prestressed steel cylinder concrete pipes (PCCP for short) have been imported from abroad for more than 30 years. Many domestic water diversion projects use PCCP pipes. The products are quite mature. Although PCCP pipes have corresponding regulations and specifications, they can There are also slight differences in applications, such as hydrogen embrittlement of prestressed steel wires, corrosion of steel bar...

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Problems solved by technology

In addition, there are also very high requirements for the quality indicators of the mortar protective layer of prestressed steel wire, such as the moisture content of mortar, mortar strength, thickness and mortar water absorption, which are the most stringent compared with other industries, so traditional products have production costs. Disadvantages of high quality and high risk

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