Square buried pressure regulating box body and preparation method thereof

Abstract

An inner cavity of the pressure regulating box body is divided into an air inlet chamber and a pressure regulating chamber through a first partition plate, the pressure regulating chamber is divided into a first-stage pressure chamber and a second-stage pressure chamber through a second partition plate and a third partition plate, and a pressure regulating valve port is fixed to the third partition plate; an air inlet pipe and an air outlet pipe are correspondingly arranged on the left side and the right side of the pressure regulating box body, a communicating pipe is fixed in the air inlet chamber, a stop valve port is fixed to the upper end of the communicating pipe, the lower end of the communicating pipe communicates with the first-stage pressure cavity, and a first mounting base and a second mounting base are fixed to the pressure regulating box body; the second mounting seat is used for mounting the pressure regulator and vertically corresponds to the pressure regulating valve port. The pressure regulating valve has the advantages of being simple in structure, safe, reliable and good in applicability; the preparation method has the advantages of being simple in process, reliable in sealing and high in yield, the phenomenon that the pressure regulating box body is scrapped due to internal sealing failure can be effectively avoided, and the production and operation cost is reduced.

Description

technical field [0001] The invention relates to a pressure regulating device, in particular to a square buried gas pressure regulating box and a preparation method of the pressure regulating box. Background technique [0002] With the development of science and technology and society, more and more gas pipeline networks adopt the setting method of burying the surge tank underground (abbreviated as buried surge tank) to save ground space and improve safety. However, most of the existing buried surge tanks use axial flow surge tanks, which have the following problems in practical applications: 1. The structure is complex, the pressure regulator box is difficult to prepare, the yield is low, and it is easy to fail due to internal sealing Resulting in the scrapping of the pressure regulating box; 2, the pressure regulating range is small and the applicability is poor. Contents of the invention [0003] The purpose of the present invention is to provide a square buried pressur...

AI Technical Summary

Problems solved by technology

However, most of the existing buried surge tanks use axial flow surge tanks, which have the following problems in practical applications: 1. The structure is complex, the pressure regulator box is difficult to prepare, the yield is low, and it is easy to fail due to internal sealing The pressure regulating box is scrapped; 2. The pressure regulating range is small and the applicability is poor

Images