Roots blower is a positive displacement blower,impellerEnd face, front and rear end caps of the fan. The principle is to use two leaf shapesrotorTo compress and transport gas by relative motion within a cylinderRotary CompressorThis blower has a simple structure and is easy to manufacture. It is widely used in aquaculture oxygenation, sewage treatment aeration, cement transportation, and is more suitable for gas transportation and pressurization in low-pressure environments. It can also be used as a vacuum pump.
consist of
The Roots blower consists of five main parts: the casing, wall panels, impeller, oil tank, and muffler.
Shell: mainly used to support wall panels, impellers, mufflers, and for fixing purposes.
Wall panel: mainly used to connect the casing and impeller, support the rotation of the impeller, and provide end face sealing effect.
Impeller: It is the rotating part of a Roots blower, divided into two blades and three blades. However, due to the advantages of three blades, such as smaller air pulsation, lower noise, and smoother operation, they have gradually replaced the two blade Roots blower.
Oil tank: mainly stores lubricating oil, used to lubricate gears and bearings.
Muffler: Used to reduce the noise generated by airflow pulsation at the inlet and outlet of Roots blower.
classification
Roots blowers can be roughly divided into single-stage and two-stage blowers according to their different working modes. The blower with only one compression stage is called a single-stage blower, while the blower with two single-stage blowers connected in series to continuously compress gas twice is called a two-stage blower.
Divided by the number of impeller heads: Two blade Roots blower and Three blade Roots blower;
Classified by purpose: shaft kiln blower, gasification blower, aeration blower, etc;
Classified by medium type: air blower, gas blower, hydrogen blower, sulfur dioxide blower, etc;
Divided by transmission mode: direct connection blower and belt connection blower, etc; Divided by cooling method: air-cooled blower, water-cooled blower, and counter current cooling blower, etc;
Classified by structural type: vertical blower, horizontal blower, vertical shaft blower, dense group blower, etc;
According to the sealing type, there are various types of blowers such as labyrinth seals, expansion ring seals, packing seals, and mechanical seals.
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