Steel cylinder type concrete pressure pipe and water supply pipeline

Abstract

The invention discloses a steel cylinder type concrete pressure pipe and a water supply pipeline, and relates to the technical field of pipeline manufacturing. The steel cylinder type concrete pressure pipe comprises a combined reinforcing layer, a lining layer and a first steel cylinder, and a protective layer is arranged outside a middle layer in a sleeving manner; a second steel cylinder is arranged between the protective layer and the middle layer; the middle layer is arranged outside the lining layer in a sleeving manner; the first steel cylinder is arranged between the middle layer and the lining layer; a first steel wire mesh is arranged in the protective layer; a second steel wire mesh is arranged in the middle layer; and the first steel wire mesh and the second steel wire mesh arecylindrical. Compared with the prior art, the steel cylinder type concrete pressure pipe provided by the invention has the advantages that the second steel cylinder between the protective layer and the middle layer, and the first steel wire mesh and the second steel wire mesh on the two sides of the second steel cylinder are arranged, the steel cylinder type concrete pressure pipe can bear relatively high inner and outer pressure, is high in rigidity, not liable to deform, high in anti-permeability and safe and reliable in use, and brittle failure of high-strength steel wires can be prevented.

Description

technical field [0001] The invention relates to the technical field of pipeline manufacturing, in particular to a steel cylinder concrete pressure pipe and a water delivery pipeline. Background technique [0002] At present, pressure pipes are an indispensable product for water transmission projects. Over the years, my country's pressure pipelines have developed rapidly, and a number of large-scale water transfer projects represented by the South-to-North Water Diversion Project have used a large number of steel pipes and prestressed steel cylinder concrete pipes (PCCP). [0003] However, the inventor found that PCCP is prone to potential quality problems such as corrosion and high-strength steel wire brittle fracture, and PCCP cannot be used in the open air, and these defects affect the safe operation and service life of the pipeline; Low installation efficiency, poor impermeability and other shortcomings. [0004] In view of this, it is particularly important to design a...

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Problems solved by technology

[0003] However, the inventor found that PCCP is prone to potential quality problems such as corrosion and high-strength steel wire brittle fracture, and PCCP cannot be used in the open air, and these defects affect the safe operation and service life of the pipeline; Disadvantages such as low installation efficiency and poor impermeability

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