Remotely-controlled double-acting pneumatic control device for valve

Abstract

The invention discloses a remotely-controlled double-acting pneumatic control device for a valve. The remotely-controlled double-acting pneumatic control device comprises a valve body, a valve deck, a valve rod, a gear, rack sliding blocks, a double-pushing air cylinder, a support, an electromagnetic valve, a gas source device and a master controller. The valve body is connected with the valve deck. A shaft sleeve is arranged in the valve deck. The shaft sleeve and the valve rod are installed in a matched manner. The gear is fixedly connected to the top end of the valve rod. The two sides of the gear are engaged with the rack sliding blocks respectively. An upper sliding groove and a lower sliding groove are formed in each of the two sides of each rack sliding block. The sliding grooves are formed in sliding ways in a sliding manner. The sliding ways are fixedly installed on the support. The middle of the upper end of the support is fixedly connected with an installing base. The double-pushing air cylinder is fixedly installed on the installing base. The double-pushing air cylinder is connected with the electromagnetic valve connected with the gas source device. The electromagnetic valve is further electrically connected with the master controller, and the master controller is connected with a remote control device. The structure is reasonable and operation is convenient. The gas tightness of the valve and the opening and closing efficiency of the valve are improved.

Description

【Technical field】 [0001] The invention relates to the technical field of valves, in particular to a remote control double-acting pneumatic control device for valves. 【Background technique】 [0002] The valve is a control component in the pipeline fluid delivery system. It is used to change the passage section and the flow direction of the medium. It has the functions of diversion, cut-off, throttling, check, diversion or overflow pressure relief. It is a valve for fluid control. , from the simplest globe valve to the various valves used in extremely complex automatic control systems, there are many varieties and specifications. The nominal diameter of the valves ranges from very small instrument valves to industrial pipeline valves with a diameter of 10m. It can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. The working pressure of the valve can be from 0.0013MPa to 10...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a remote control double-acting pneumatic control device for valves, which aims to solve the problem of valve loosening, airtightness reduction, and manual twisting strength in the prior art. high technical issues

Images