The two-stage roots blower is a device composed of two roots blowers in series. There are two three blade rotors with opposite turning directions inside each fan case , Each three blade rotor is supported by two bearings , Using a pair of high-precision synchronous spur gears , Keep the relative position of the two rotors unchanged , Maintain a certain clearance between rotors and between rotors and boxes , Non contact rotation. The rotor is driven by the side box synchronous gear , With the help of two rotors “ mesh ”, Isolate the air inlet from the air outlet , Complete the transfer process of the closed gas between the box and the rotor from the suction side to the discharge side. During rotation, the gas in the working chamber is pushed from the air inlet to the air outlet without internal compression. There are small gaps between rotors, between rotors and boxes, between rotors and wallboards , Therefore, there is no friction in the working chamber , No contact wear parts.
Scope of application ：
It is widely used in the pneumatic conveying system of ceramics, building materials, paper making, electricity, petroleum, chemical industry, textile, aquaculture, sewage treatment, food and other industries.
Conveying medium ：
It is used to transport air and various neutral gases. However, it is not suitable for conveying flammable, explosive, toxic and highly corrosive gases.
Performance characteristics ：
one High volumetric efficiency of two-stage three leaf roots blower , Large gas supply , Stable operation , Reliable use , It has relatively stable working characteristics.
two The impeller and shaft are of integral structure, and the impeller is free of wear. The performance of the fan is permanent and can operate continuously for a long time.
3 For forced gas transmission, the flow changes little with the pressure, the outlet pressure is determined by the back pressure, and the transmission gas is not polluted by oil.
four The selection of bearings is reasonable, the service life of each bearing is even, and the fan oil seal is made of imported fluororubber material, which is high temperature resistant and wear-resistant, so the fan has a long service life and high reliability.
five The fan has a large volume utilization rate, high volume efficiency, simple and compact structure, and flexible installation methods.
Easy to use and maintain.
six The fan has low vibration and noise due to the use of a three blade rotor structure and a reasonable structure at the inlet and outlet of the housing. Pressure and temperature control to provide unit operation protection.
seven The fan oil seal is made of imported fluororubber material, which is high temperature resistant, wear-resistant and has a long service life.
eight Complete models can meet the needs of different users for different purposes.
