Asymmetric spherical pipeline elbow for pneumatic transportation

Abstract

The invention particularly relates to an asymmetric spherical pipeline elbow for pneumatic transportation. The problems that pipe wall erosion damage, transported particle damage, too large transporting gas kinetic energy losses and the like frequently happen to an existing pipeline elbow for pneumatic transportation are solved. The asymmetric spherical pipeline elbow for pneumatic transportation comprises a spherical pipeline elbow body, a feeding pipeline communicating with the spherical pipeline elbow body is horizontally arranged, and the feeding pipeline and the spherical pipeline elbow body are connected at the left front lower portion of the spherical pipeline elbow body; a discharging pipeline communicating with the spherical pipeline elbow body is vertically arranged, and the discharging pipeline and the spherical pipeline elbow body are connected at the left rear upper portion of the spherical pipeline elbow body; the inner diameter of the spherical pipeline elbow body is 240mm; the inner diameter of the feeding pipeline and the inner diameter of the discharging pipeline are both smaller than or equal to 100 mm; and the pipeline eccentric distance is smaller than or equal to 75 mm. According to the asymmetric spherical pipeline elbow, in the process that particles flow in the asymmetric spherical pipeline elbow, airflow is in a vortex state, speed reduction and phase changing are achieved, then buffering and speed reduction are achieved through a collision particle pad, the collision speed of the particles and the wall face is reduced, direct front collision between the particles and the wall face is reduced, and the particle damage rate is reduced.

Description

technical field [0001] The invention relates to the technical field of pipeline transportation of granular materials, in particular to an asymmetric spherical pipeline elbow for pneumatic transportation. Background technique [0002] Pneumatic conveying is a new transportation method that uses flowing gas to transport granular materials in closed pipelines. It is widely used in chemical industry, metallurgy, pharmaceutical, electronics, food, agriculture, animal husbandry, fishery and other industries. At present, curved common pipe elbows are often used in pneumatic conveying equipment. [0003] However, practice has shown that the following problems exist in the use of pipe elbows in existing pneumatic transportation equipment: when transporting some particles with large diameters and poor fluidity, such as: grain, seeds, feed, medicine, etc., the pipe elbow Problems such as erosion and damage of the pipe wall, broken particles to be transported, and excessive loss of kin...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an asymmetrical spherical pipe bend for pneumatic transportation in order to solve the problems of frequent occurrence of pipe wall erosion damage, transported particle damage, excessive kinetic energy loss of transported gas, etc. at the elbow of the existing pneumatic transportation pipeline. head

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