Piston air compressors are mainly used in mining.

The role of pressure regulators There are many types of air compressors. The main types of air compressors used in the mining industry are piston air compressors. The piston air compressor converts the rotary motion of the prime mover into the reciprocating motion of the piston by the crank linkage mechanism. The cylinder and the piston together form a compression volume to complete the process of gas intake, compression, and exhaust. The cylinder is equipped with an intake valve for gas suction and discharge. The exhausted gas is charged into the gas storage tank through the gas path for use by pneumatic tools. Because the gas operation is not fixed, such as the number of tools to start, the workers intermittently, etc., the air pressure in the gas tank will change at any time. When the pressure is low, the continuous operation of the air compressor can replenish the gas and increase the air pressure. When the pressure is too high and exceeds the rated pressure of the gas storage tank, there is a danger of explosion. For this purpose, the gas storage tank is installed on the one hand. The safety valve automatically opens when the gas pressure exceeds a certain value, which acts as a pressure relief function to ensure safety. On the other hand, the air compressor is designed with the pressure regulating function in mind, and it is desirable that the compressor discharge amount is within the required adjustment range. Continuously changing, the exhaust gas volume is equal to the gas consumption at any time, and the pressure in the gas storage tank is stabilized. The pressure regulator is a component that regulates the air pressure according to the pressure of the gas.

Types of Pressure Regulators The exhaust volume adjustment methods include speed adjustment, line adjustment, and pressure opening valve adjustment. Since the internal combustion engine and the steam engine-driven compressor can be continuously changed in the rotational speed of the prime mover, the continuous discharge amount adjustment can be conveniently performed. The hand wheel under the unloading valve is used to cut off the air intake when the air compressor starts, rotate the hand wheel during operation, so that the screw connected to it pushes the valve core, closes the intake passage, and the air compressor starts after the empty load starts. Unscrew the handwheel and let the relief valve be in a natural state.

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