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What is the working principle of Roots blower

Author: Hongguang roots blower Release time: March 3, 2020 18:29:24 Number of visits:

Key words: the principle of Roots blower

Origin and use

Let's start from Roots blower The name of the. It is said that in 1854, the Ross brothers in the United States invented the blower in the process of designing the water wheel. At that time, the impact was huge, which opened up a new era for the wind turbine market generation. Later, it was called this type of wind turbine in the world Roots blower It is also the only machine in the history of wind turbines to retain personal names. Roots blower It is a very simple but powerful equipment, which is widely used in sewage treatment, aeration, pneumatic conveying, material transportation, gas pressurization, natural gas transportation, industrial coal washing, environmental protection, chemical industry, casting and other industries, but some consumers need to use it Roots blower I don't know much about blowers.

Working principle

Roots blower It is a positive displacement fan. In the space sealed by the shell and the wallboard, there are two trilobal wheels which can rotate relatively. Because each impeller is an involute or cycloid packaging. The winding line is the impeller processing line. The three blades of each impeller are identical, and the two impellers are the same, which greatly reduces the processing difficulty. In the process of impeller machining, numerical control equipment is used to ensure that the center distance between the two impellers remains unchanged. No matter in which direction the two impellers rotate, a certain minimum clearance can be maintained to ensure that the gas leakage is within the allowable range. The earliest blower was a two blade roots blower.

 

Schematic diagram of two blade roots blower:

 Schematic diagram of two blade roots blower

 

It is a positive displacement blower. The air inlet is separated by a pair of rotors' meshing '(there is a gap between the rotors, but they are not in contact with each other). The rotor is driven by a pair of synchronous gears and moves in the opposite direction to push the inhaled gas from the suction port to the exhaust port without internal compression. When the gas reaches the exhaust port, it is pressurized due to the return of high-pressure gas on the exhaust side, thus completing the gas transmission.

Schematic diagram of three leaf roots blower

 Schematic diagram of three leaf roots blower
   

Conclusion: no matter two blade type or three leaf type, when the top of the rotor opens to the exhaust outlet line, the high-pressure air from the exhaust outlet reverses to compress in the casing, resulting in severe pressure change and fan noise. In order to eliminate this factor, the spiral shape of the fan is studied. In the following articles, we will introduce the features and extensive uses of Roots blower in 2 in detail. Please pay attention to the articles on this website at any time.
  What is the working principle of Roots blower http://theoxfordjazz.com/xw/71.html

 

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