Roots pump structure

Roots pump in smelting, petroleum, chemical, electronics, chemical, electrical and other industries more and more role, Roots vacuum pump two rotors in the pump body layout, determines the overall structure of the pump. Roots pump structure at home and abroad generally have three options: Roots pump structure 1, vertical: the axis of the two rotors are mounted horizontally, but the two rotor axis perpendicular to the horizontal plane and the plane, this structure, the pump into Exhaust port was set horizontal, assembly and connection pipelines are more convenient. But its disadvantage is the pump center of gravity is too high, poor stability at high speed, so in addition to small size pump, the use of this type of structure is not too much. Horizontal: The axes of the two rotors are installed horizontally. The plane formed by the axes of the two rotors is horizontal. In this structure, the air inlet of the pump is above the pump and the air outlet is below the pump. The exhaust port below the horizontal direction is generally taken out, so the intake and exhaust directions are perpendicular to each other. Exhaust port connected to a three-way pipe to open in both directions, one end of the exhaust pipe connected to the other end of the bypass valve or use. This structure is characterized by low center of gravity, good stability at high speed. Large and medium-sized pump at home and abroad to use this type of structure. 3, vertical shaft type: some foreign Roots pump two rotor axis and horizontal plane vertical installation. The assembly of the structure is easy to control the gap, the rotor assembly is convenient, small footprint, but the gear and other transmission mechanism assembly and disassembly inconvenience, lubrication device is more complicated. With the help of current science and technology, the Roots pump already has the advantages of quick start-up, high working efficiency, less power consumption, low operation and maintenance cost, large pumping speed and high efficiency. The structure of the Roots pump is also becoming more and more simple and practical. Roots pump continues to develop, Roots pump structure will be more in line with the needs of users.

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