Some of the solenoid valve application

Solenoid valve used in some electric power service electrician time on understanding the solenoid valves are widely used in our production, we in the maintenance of production must have met a lot of questions about the solenoid valve, also deal with all kinds of fault, we also must have accumulated a lot of experience regarding the handling of electromagnetic valve failure, and I in the maintenance treatment solenoid valve failure relative to other instrument control failure is relatively small, and now I was with you on this question discussion, eager to learn from you more experience and improve together. We had a preliminary understanding, for electromagnetic valve, electromagnetic valve, is composed of electromagnetic coil and core consists of one or a few holes of the body. When the coil electricity or without electricity, magnetic core operation will lead to flow through the valve body or is cut off, in order to change the direction of flow. Electromagnetic valve electromagnetic components by the fixed core, moving iron core, coil and other parts; Body parts by a valve core, valve cover, spring base, etc. The electromagnetic coil is directly installed on the valve body, the body is enclosed in a sealed tube, constitute a combination of a simple, compact. We commonly used in the production of the solenoid valve have two three links, two cross, two five. Here to talk about the meaning of the two for electromagnetic valve is charged with electricity, for the control valve is opened and closed. We oxygenerator instrument control system, two the 3-way magnet valve (use most, it can be used to connect or cut off gas source in production, and control of pneumatic membrane pneumatic switch. It consists of the valve body, valve cover, electromagnetic component, spring and sealing parts, such as the structure moving iron core seal at the bottom of the block with the aid of the pressure of the spring will shut valve inlet. After electrify, electromagnet suction, upper moving iron core with a spring sealing piece close vent, air flow from the inlet into the film, the control effect. Disappear when losing electricity, electromagnetic force, under the action of spring force of moving iron core leave fixed iron core, move down, open the vent, plug the air inlet, membrane air flow through the vent discharge, diaphragm to restore the original position. In our oxygen producing equipment, the turbine expander imported film has applied emergency cut-off valve, in the place. Four-way solenoid valve used in our production is very much also, its working principle is as follows when there is an electric current passes through the coil, excitation effect, fixed core and moving iron core, moving iron core drives the valve core and compression spring, change the position of the valve core, which changes the direction of the fluid. When lose electric coil, rely on spring elastic drive valve core, reversing iron core, according to the original direction of fluid flow. In our oxygen production, molecular sieve mandatory valve switch switch system is through two four-way solenoid valve to control, air flow, respectively, for to force valve piston at both ends. Thus to control the mandatory valve opening and closing.