Gas circuit structure with inflating and deflating speed controllable

Abstract

The invention discloses a gas circuit structure with the inflating and deflating speed controllable, and belongs to a gas storage type pneumatic executing mechanism. A gas source is respectively communicated with a gas storage tank, one end of a throttling valve D and an a1 port of a two-position and three-way solenoid valve A through a check valve, a b1 port and a c1 port of the two-position and three-way solenoid valve A are communicated with the other port of the throttling valve D and a b2 port of a two-position and three-way solenoid valve B respectively, an a2 port and a c2 port of the two-position and three-way solenoid valve B are communicated with a c3 port of a two-position and three-way solenoid valve C and a gas tank respectively, a b3 port and an a3 port of the two-position and three-way solenoid valve C are communicated with one end of a throttling valve E and an exhaust hole respectively, and the other port of the throttling valve E is communicated with the exhaust hole. According to the gas circuit structure, air is used for mediums, central gas supply is achieved on the basis of the compressibility of air, machining and maintenance of a mechanical structure are greatly simplified, the working rate can be intelligently controlled, and the gas circuit structure has the advantages of being simple in structure, low in manufacturing cost, safe and reliable in operation, long in service life, suitable for long-distance transmission and the like.

Description

technical field [0001] The invention belongs to an air storage type pneumatic actuator, in particular to an air path structure with controllable inflation and discharge rates. Background technique [0002] At present, in some special occasions in the fields of electric power, petroleum and chemical industry, it is often necessary to control the valve to close quickly when the hydraulic source is cut off. However, ordinary hydraulic mechanisms are not only difficult to meet this demand, but also accompanied by a series of problems such as large loss, low efficiency, high heat generation, and safety protection. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems in the prior art, and provide a gas path structure with controllable inflation and deflation rate, which can achieve the characteristics of fast and reliable operation, low power loss, high efficiency and good safety. [0004] The purpose of the present inv...

AI Technical Summary

Problems solved by technology

However, the ordinary hydraulic mechanism is not only difficult to meet this demand, but also accompanied by a series of problems such as large loss, low efficiency, high heat generation, safety protection, etc.

Images