A pressure-resistant municipal drainage pipe

Abstract

The invention belongs to the technical field of drainage pipes, in particular to a pressure-resistant municipal drainage pipe; it includes a drainage pipe body and a flange; the adjacent drainage pipe bodies are connected by a flange; the drainage pipe body includes an inner pipe and an outer pipe , and the positions a, b and c between the inner tube and the outer tube are connected by support columns, and the position d between the inner tube and the outer tube is provided with a decompression unit, and the decompression unit includes No. 1 pole, No. 2 pole and No. 3 pole , No. 4 rod and slider; by dividing the drain pipe body into an inner tube and an outer tube, and setting a decompression unit between the inner tube and the outer tube, when the outer tube is subjected to external pressure, the slider slides on the chute , reduce the pressure on the outer pipe, so that the pressure transmitted to the inner pipe is lower than the pressure that the inner pipe can withstand, and protect the inner pipe to avoid the rupture of the inner pipe and affect the transportation of water in the municipal area, thereby improving drainage tube life.

Description

technical field [0001] The invention belongs to the technical field of drainage pipes, in particular to a pressure-resistant municipal drainage pipe. Background technique [0002] A pipeline is a device used to transport gas, liquid or fluid with solid particles connected by pipes, pipe connectors and valves. Usually, after the fluid is pressurized by blowers, compressors, pumps and boilers, it flows from the high-pressure part of the pipeline to the low-pressure part, and it can also be transported by the pressure or gravity of the fluid itself. Pipes are widely used, mainly in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices. [0003] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads, commonly known as "sewer pipes", and are usually called municipal drainage pipes in engineering. Existing drainage pipes are re...

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Problems solved by technology

[0005] In order to make up for the deficiencies of the prior art and to solve the problem that municipal drainage pipes are weak in pressure resistance and cause municipal drainage pipes to be easily broken, the present invention proposes a pressure-resistant municipal drainage pipe

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