Roots vacuum pump price
Shanghai EVP specializing in the production and sales of Roots vacuum pumps, you are welcome to call the Roots vacuum pump, consult the price of Roots vacuum pump, Roots vacuum pump details, we will provide you with a comprehensive service of Roots vacuum pump.
ZJ 600 Roots vacuum pump
Roots Vacuum Pump Overview:
Roots Vacuum Pump is a kind of rotary variable-volume vacuum pump, the greatest advantage is that it has a higher pumping rate at a lower inlet pressure, but it can not be used alone. A front-stage vacuum pump must be connected in series. Roots Vacuum Pump can only be used when the pressure in the pumped system is pumped by the front-stage vacuum pump to the allowable population pressure of Roots Vacuum Pump. Start working, and in general, Roots vacuum pump is not allowed to work when high pressure difference, otherwise will be overloaded and overheated and damage, so the use of Roots vacuum pump must be reasonable choice of pre-vacuum pump, installation of necessary protection equipment. Front-stage vacuum pump is generally oil seal mechanical pump, but if the limit pressure requirements are not high, you can choose other forms of coarse vacuum pump as the front-stage pump. Especially in the extraction of a large amount of steam gas, the use of water ring vacuum pump as a front-stage pump is ideal, of course, can reach the limit pressure is worse. Roots pumps are widely used in vacuum degassing, vacuum smelting, vacuum treatment of molten steel, space simulation, low density wind tunnel and other devices to extract non-corrosive gases. It can also be used in distillation, evaporation, drying and other production processes in chemical, food, pharmaceutical, motor manufacturing industries.
Roots vacuum pump features:
1. There is a certain gap between rotor and pump cavity, rotor and rotor, and they do not touch each other, and do not need oil lubrication.
2. Roots vacuum pump works with small vibration, large volume, and volumetric utilization factor = 0.5.
3, there is no compression phenomenon in the pump cavity, such as mechanical vacuum pump, so it does not need exhaust valve. Because of this, condensable steam can be removed.
4. Roots vacuum pump starts quickly and can reach the limit vacuum in a short time. Low power and low maintenance cost.
Roots vacuum pump working principle:
When Roots vacuum pump is working, the gas is pumped into the rotor and pump body from the suction port, at this time a rotor and pump body separates the gas from the air inlet, the separated gas is sent to the exhaust port during the continuous rotation of the rotor. Roots vacuum pump space is in closed state, therefore, there is no compression and expansion. But when the peak of the rotor turns to the edge of the exhaust port, the pressure of V part is lower than that of the exhaust port. In order to make the pressure uniform in the connected volume, the gas will diffuse from the exhaust port to the V area, and the diffusing direction is opposite to the rotating direction of the rotor. When the roots vacuum pump rotates again, the gas at V is compressed to the exhaust port to discharge it. The other side of the rotor is connected with the intake port to inhale gas. When the rotor rotates continuously, repeat the above-mentioned exhaust process to continuously exhaust the gas in. The working process of Roots vacuum pump is equivalent to increasing the rotor space from a minimum value to a maximum value, and then decreasing from the maximum value to the minimum value.
The type of Roots vacuum pump is quite large, large and small. According to the model, the Roots vacuum pump price is different. EVP roots vacuum pump is very good and the price is moderate.
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