The vacuum pump is the core component of the vacuum suction truck, and its quality directly affects the use of the entire vacuum suction truck. Let us understand the working principle and corresponding characteristics of the vacuum pump under the 3 side vacuum suction pump . 1, the working principle of the vacuum pump There are two kinds of vacuum pumps for sewage suction trucks, which are reciprocating vacuum pumps and rotary vane vacuum pumps. The working principle of a reciprocating vacuum pump: The belt pulley rotates to drive the eccentric to make a circular motion, and then the eccentric drives the connecting rod to pull the piston, prompting the piston to make a reciprocating motion, so as to achieve the effect that the valve opens and exhausts the exhaust valve to open the exhaust. Such a continuous work, which generally requires the use of a few drops of oil to lubricate the piston liner, while part of the oil will carry the slag and other discharge pump. 2 Working principle of rotary vane vacuum pump: When the eccentric rotor rotates, the rotary vane soaked in the oil slides against the inner wall of the pump under the action of centrifugal force, the volume of the suction chamber gradually increases, and the sucked gas is sucked into the rotary suction pump. Until the end of the rotary vane suction, the suction gas is isolated. As the rotor continues to rotate, the isolated gas is gradually compressed and the pressure is increased. When the pressure exceeds the pressure at the exhaust port, the gas is discharged outside the pump. During this process, the engine oil will be mixed with high pressure to be pumped into the gas, and then separated from the pumped gas as the pressure decreases. Due to the special working environment of the agricultural truck, the gas to be pumped into is not clean or contains biogas and other substances. Corrosive gas slag, after repeated mixing reaction, the oil of engine oil will degenerate and lose its lubricating function. When it is found, the pump casing will be exhausted. (Even if vapor separator is added, corrosive gas will enter the pump.) . 2, the characteristics of the vacuum pump 1 The reciprocating vacuum pump is more suitable for the use of agricultural digesters, septic tanks, and toilets. 2 The rotary vane vacuum pump has a special structure compared to the reciprocating vacuum pump, and the slag is not easily discharged. 3 Rotary vane vacuum pump oil can easily deteriorate, reciprocating vacuum pump completely avoid this problem. 4 Reciprocating vacuum pump structure is simpler. The above is related to the working principle and features of the 3-way vacuum pumping vacuum pump . Only by mastering relevant knowledge can the vacuum suction truck be used better. GGS-240P10 Liquid Filling Sealing Machine Wenzhou Grand Machinery Technology Co., Ltd. , https://www.wzdgmachinery.com
