With the advancement and development of science and technology, many things have become more and more convenient, and intelligence and mechanization have become people's new pursuit of science and technology. Electric valve
s appeared under such a background, and have been widely used in modern industry since their appearance. But what is unexpected is that almost all submarines in various countries do not use advanced electric valves, but use old-fashioned mechanical valves. how so? The valve manufacturer will take everyone to take a look. Some friends may say that there are countless various mechanical valves on the submarine, and it can be completely done by replacing it with an electric computer. What a great thing, it saves time and improves combat effectiveness. In fact, this argument is layman. Everyone knows that the submarine works underwater. It is mainly supplied by electricity. So how to save electricity on the submarine is extremely important. If all are replaced by electric valves, the power consumption in a day may be massive, and the power consumption is fast, then it means that the time of the submarine in the water will be shortened, and its concealment will naturally decrease, so this will not increase combat power. Reduce combat power. The old-fashioned mechanical valve saves more electricity. There is also the old-fashioned mechanical electric valve, which is not only energy-saving, but also much stronger than electric in terms of safety performance. After all, the submarine is an executive character in the deep sea. Once there is a glitch, it may cause the sacrifice of all officers and soldiers. If electric valves are used, various problems will inevitably arise when the power is insufficient during the war. As long as the mechanical electric valve is properly maintained and there is no error in operation, there will be almost no problems. So based on these two considerations, most submarines do not use electric valves. The electric valve is a high-end product in the automatic control valve. It can not only realize the switching function, but the regulating electric valve can also realize the valve position adjustment function. The stroke of the electric actuator can be divided into two types: 90° angular stroke and straight stroke. Special requirements can also meet the full stroke of 180°, 270°, and 360°. The quarter-stroke electric actuator is used in conjunction with the quarter-stroke valve to realize the internal rotation of the valve within 90° to control the on-off of the pipeline fluid; the straight-stroke electric actuator is used with the straight-stroke valve to realize the up and down movement of the valve plate to control the on-off of the pipeline fluid. The driving of the electric valve is generally by a motor, and it takes a certain amount of time to complete the opening or closing action, which can be adjusted. Relatively withstand voltage shock. Solenoid valves are quick-opening and quick-closing. They are generally used where small flow and small pressure require high switching frequency; electric valves are the opposite. The opening degree of the electric valve valve can be controlled, and the state is open, closed, half-open and half-closed, which can control the flow of the medium in the pipeline, but the solenoid valve cannot meet this requirement. The three-wire electric valve has three lines F/R/N, F represents the forward action (or open action) control line, R represents the reverse action (or close action) control line, and N represents the ground line. Solenoid valve is a type of electric valve; it uses the magnetic field generated by the solenoid coil to pull the valve core, thereby changing the on and off of the valve body, the coil is de-energized, and the valve core retreats by the pressure of the spring.
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