In fact, many Chinese companies do not know much about water treatment and environmental protection equipment in sewage treatment. Now that environmental pollution is so serious, many colleagues in the environmental protection industry are working hard for the sustainable development of China's environmental protection industry. Then I will do it for everyone. Regarding the simple popularization of water treatment environmental protection equipment for hydraulic pump solenoid valves, the following is an analysis of the principles of electric and pneumatic valves and their respective advantages in my country's environmental protection industry.
Electronically controlled valves usually include electric actuators and valves. The electric valve of water heater uses electric energy as power, and the valve is driven by an electric actuator. Now the valves produced by valve manufacturers can realize the switching action of electric valves. In this way, the switching of pipeline media is realized. The action distance of the electric valve is larger than that of the ordinary valve. The action speed of the electric valve switch is adjustable. The solenoid valve of the water heater is simple in structure and easy to maintain. It can be used to control various fluids, such as air, water, steam, various corrosive media, mud, The flow of oil, liquid metals and radioactive media.
The gas valve uses compressed air to drive the valve. Compressed air is used to drive multiple groups of pneumatic pistons in the actuator, transfer force to the beam and the inwardly curved track, drive the hollow main shaft to rotate, and the gas stove solenoid valve compressed air disc is delivered to each cylinder, and the air intake position is changed to change the main shaft rotation. Direction, according to the rotation torque required by the load (valve), the number of combined cylinders can be adjusted to drive the load (valve) to work. The air valve can be used to control various fluids, such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.
Electric valves and pneumatic valves have their own advantages:
Pneumatic valve has good effect on gas medium and liquid pipe diameter, and has low cost and convenient maintenance.
Disadvantages: The northern winter is affected by air pressure fluctuations and is easily affected by water in the air, causing the transmission part to freeze and not move. Pneumatics are usually faster than electrics, and electric ones are dual-purpose flashlights. Moreover, the pneumatic is very handy, and the pneumatic is dual-purpose and the price is higher.
The electric valve has a good effect on liquid medium and large pipe diameter gas, and is not affected by climate change. Not affected by air pressure.
Disadvantages: high cost and poor humid environment.
There are not many brands of electric valves with slow electric valve action that can be explosion-proof; pneumatic valves have fast action speed and relatively low price for explosion-proof (what accessories are provided with key pneumatic valves? If they are equipped with large accessories, the price will be more expensive than electric valves. ).
Electric valves are suitable for some places with large pipe diameters, because it is difficult to do it pneumatically, but the stability of electric valves is not as good as that of pneumatic switch actuators. The actuators will have tooth jamming during the execution time. Pneumatic valves have high switching speed and high precision but need Stable gas source.