Electromagnetic valve in the application in the field of empirical knowledge

Electromagnetic valve in the application of empirical knowledge summary in the field of science and technology change the future xiao liu times solenoid valve, they are widely used in our production in the maintenance of production must have met a lot of questions about the solenoid valve, also deal with all kinds of fault, so sure you also must have accumulated a lot of fault handling experience about the solenoid valve. East solenoid valve ( Solenoid valve factory) And in the maintenance process solenoid valve failure relative to other instrument control failure is relatively less, so we are now and the electromagnetic valve factory to solve these problems, and we discuss 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 working principle when a current 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 the piston at both ends, thus to control the mandatory valve opening and closing. Solenoid valve failure will directly affect the switching valve and control valve, common fault electromagnetic valve is not action screen as follows, ) Solenoid valve terminal is loose or falls off thrum, electromagnetic valve shall not electricity, can tighten thread ends. ( ) Solenoid coil burn out, can remove the solenoid valve connection, measured with a multimeter, if open circuit, the electromagnetic valve coil burn out. Coil be affected with damp be affected with damp, reasons caused bad insulation and magnetic flux leakage, causing excessive current in coil and burned down, so to prevent rain water from entering the solenoid valve. In addition, the spring quality, reaction force is too large, the coil number of turns is too little, not enough suction also coil may be destroyed. When emergency treatment, but the manual button on the coil by the normal work of '' hit' ', makes the valve to open. ( ) Solenoid valve solenoid valve by the slide valve and valve core set of fit clearance is small ( Less than, mm) , are generally single assembly, when mechanical impurities into or lubricating oil is too little, it is easy to get stuck. Treatment methods available wire holes stab, from the head to make it back. The fundamental solution is to solenoid valve will be removed, remove the valve core and valve core, clean with CCI, makes the valve core within the valve sleeve flexible motion. Removal should be paid attention to when all parts, assembly sequence and wiring position to reassemble and wiring is correct, also check oil mist detector injection hole blockage, lubricating oil is enough. ( ) Leak leakage will cause the air pressure is insufficient, make it easier for mandatory valve opening and closing, the reason is that sealing gasket damage or slide valve wear several cavity caused by gas. In dealing with the solenoid valve switch system failure, should choose the appropriate time, such as the solenoid valve in a loss of power, the if processing is not down in a switch gap, switched systems can be suspended, calmly deal with. Electromagnetic valve professional custom production, consult the electromagnetic valve factory technical adviser director wang