Precautions for Roots blower operation
Roots blower
Operation: After the roots blower operates normally, the operator should pay close attention to the operation condition of all parts, and observe the temperature of all parts of the machine, the vibration of the machine, and the noise of the muffler at any time. If there is any abnormality, stop immediately.
Shutdown: for the normal stop of roots blower, first open the bypass pipe for exhaust, cut off the power supply after the air pressure drops (basically zero), and close the air inlet valve and cooling water system. In case of abnormal shutdown, the bypass pipe shall be opened for ventilation.
Maintenance: During normal operation, check the temperature of bearings, lubricating oil in tanks, motors, etc. every 1~2 hours, and do not exceed the specified value. Roots blower is noisy during operation. In order to reduce noise, in addition to installing silencer
Some simple methods are used to reduce noise, such as underground cave method. Dig 4~5m3 underground caves, cover the caves, use one conduit to lead the air intake into the caves, and use another conduit to lead the external air into the caves. Two
Try to step on the bottom of the cave to reduce a lot of noise.
Key points for operation of Roots blower:
Check all parts of the blower for completeness, looseness of bolts and nuts, installation quality of fasteners and locating pins, and installation quality of exhaust pipes and valves.
In order to ensure the normal operation of the fan, it is not allowed to carry external loads such as pipes, valves and frames. Check the blower and motor for correct quality.
Check whether the surrounding of the unit base is firm and whether the foundation bolt is firm.
The structure is an ordinary three blade roots blower, which is mainly composed of a driver and a head. The driver is the power source of the blower, which is both a motor and a diesel engine. The head is the main working part of the roots blower
The operation of can achieve the purpose of gas transmission. To understand the working principle of roots blower and fully understand the head structure of roots blower. The main components of the head are wallboard, shell, driving impeller, automatic impeller, driving automatic gear
Main and auxiliary oil tanks, bearings, etc.
Working principle of Roots blower.
In short, it is to force the gas from one end to the other through a pair of impellers, so as to achieve the purpose of air transmission. This principle was proposed by the American Roots Brothers, so it is called the Roots Principle. The fan made by Roots principle is called Roots fan.
What are the advantages of Roots blower
(1) When the middle distance is the same and the outer circle radius is the same, the displacement of the three blade roots blower with arc blades is greater than that of the double blade roots blower. The displacement of an involute Roots blower is independent of the number of rotor heads.
(2) The vibration and noise of the three blade roots blower is less than that of the two blade roots blower. The service life of the rotor bearing of the three blade roots blower is about 15 longer than that of the two blade roots blower. In addition, three blade rotors can use twisted blade rotors to reduce noise and vibration, but
Due to structural limitations, twisted blade structures cannot be used for double blade rotors.
(3) The mechanical performance of three blade rotor is better than that of double blade rotor, which can better ensure the clearance between impellers and between impellers and shells.
(4) Three blade rotor roots blowers, especially twisted blade roots blowers, have good noise and dynamic balance performance, so they are more and more used in automobile pressurization.
