Manufacturing method of vortex water drainage type silencer drainage pipe

Abstract

The invention discloses a vortex drainage-type noise reduction drainage pipe, which comprises a drainage pipe body. 6-18 guide spiral fins are connected with the inner wall of the drainage pipe body in a uniform distribution manner; each guide spiral fin is provided with a convex arc rebound surface and a concave arc interference surface; the spiral angle of each guide spiral fin is 3-12 degrees, and the spiral fins are 3-12mm wide, and 2-8.5mm high. The arc radius of each rebound surface is 3-12mm from the section view vertical to the normal cross section of the corresponding spiral fin; the arc radius of each interference surface is 7-22mm from the section view vertical to the normal cross section of the corresponding spiral fin. The invention also discloses a manufacturing method of the vortex drainage-type noise reduction drainage pipe. According to the vortex drainage-type noise reduction drainage pipe disclosed by the invention, the structure and the number of the internal spiral fins are optimized, and therefore, the drainage noise can be effectively reduced, and the strength of a drainage pipe material is enhanced. The vortex drainage-type noise reduction drainage pipe is widely suitable for building drainage pipelines of industrial or civil buildings, and is especially suitable for public communities with high noise reduction requirements. By adopting the method, the material prescription is optimized, and the manufacturing cost can be remarkably reduced.

Description

technical field [0001] The invention relates to the field of drainage pipes, in particular to a method for manufacturing a vortex water drainage type sound-absorbing drainage pipe. Background technique [0002] Industrial or civil (residential) buildings are inseparable from drainage pipes. The noise from drainage pipes makes people upset, distracted, anxious, irritable, damages hearing, and affects people's cardiovascular and nervous systems, especially in In the dead of night, it affects sleep, affects study and work, etc., and the harm it brings to people is well known. With the development of society, people's awareness of the impact of noise on human health has been greatly improved, and the requirements for eliminating noise, pursuing a comfortable environment, and improving the quality of life are very urgent. It is the responsibility of the industry to reform the noise problem of traditional drainage pipes, and it is even more urgent. [0003] In the prior art, the...

AI Technical Summary

Problems solved by technology

[0008] 1. The traditional drainage pipe material formula in the prior art is single, and the manufacturing cost of the drainage pipe is high or the cost performance is not high, such as ZL201110265813.X, the structure of the three-layer noise-reducing drainage pipe is complicated, and the cost of preparing materials, storage, and production is relatively high;

[0009] 2. For these spiral drain pipes in the prior art, the number of spiral ribs arranged on the inner wall surface of the pipe is random, which does not match the specifications of the drain pipe;

[0010] 3. For these spiral drainage pipes in the prior art, the cross-sectional shape of the spiral ribs is triangular or zigzag, etc. From the perspective of hydrodynamic vortex drainage, there is still a lot of room for potential optimization in terms of eliminating drainage noise

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