Roots blower: There shall be no noise or sudden smoke at the supporting point of the roller bearing, and the ambient temperature of the bearing shall not exceed the standard value.

The pump sealing equipment shall be free of noise and air leakage.

The same gear shaft shall be free of abnormal uneven impact noise.

The gear lubrication method is generally "splash-out type". According to the full transparent monitoring of the oil tank, mist oil droplets should be seen gathering under the hole cover.

The no-load current shall be in a balanced state, and the reading value of the instrument panel shall be recorded.

Load operation

(1) Open the electric air valve, close the intake valve, and grasp the valve switching speed. The variable pressure shall not exceed the rated value and shall not be fully loaded for trial operation.

　　(2)Roots blowerWhen starting, it is forbidden to turn off the air outlet pipe to avoid cracking safety accident.

(3) During load operation, the bypass valve shall be checked for heat generation and steam leakage.

Shutdown actual operation

(1) Make records before shutdown, and record the working voltage, current flow, air pressure, ambient temperature and other relevant information.

(2) gradually open the bypass valve, turn off the outlet valve, pay attention to grasp the valve switching rate.

(3) Press and hold the shutdown button.

Roots blower is a positive displacement rotary fan, and the key power unit is motor, diesel engine or motor-diesel engine hybrid. The basic parameters of the model selection are exhaust air volume, working pressure, speed ratio, motor output power, etc. Today, the knowledge that one or six mechanical equipment communicates with everyone is its principle. The working principle of Roots blower is described in detail from the structural type, principle, common problems and other aspects of Roots blower.

1. Structure type

Ordinary three-leaf Roots blower is mainly composed of two parts. It is the driving machine and engine. The driving machine is a fan power device, which can be an electric motor or a diesel engine. The engine is the main component of the Roots blower, and the effect of natural gas transportation is achieved according to the orderly work. To know the working principle of Roots blower, be sure to have a deep understanding of the die head structure of Roots blower. The important components of the engine are plate wall, shell, active impeller, driven impeller, active driven gear, main and auxiliary fuel tank, rolling bearing, etc.

2. Principle

　　Roots blowerThere are two kinds of impellers, and the two impellers rotate in opposite direction according to the motor. When the impeller rotates towards the air inlet, a closed chamber is generated between the two impellers, the plate wall and the shell. The impeller rotates continuously, and the air in the closed chamber is pressed into the air outlet. In that way, the outside gas is continuously transmitted to the destination according to the breathing port and the air outlet.

There is a certain gap between the impeller and the impeller, the impeller and the wall plate, the impeller and the shell. The gap has certain standards and deviations. If the deviation is too high, other corresponding common failure problems will occur. When the impeller is based on the air outlet, the working pressure behind the pipeline will also cause a part of the gas to leak to the outside according to the gap. This type of leakage is called internal leakage.

3. Frequently Asked Questions

Roots blower is a volumetric fan. After operation, the exhaust air volume will not change basically. Even if the working pressure in front changes slightly, the gas can be transported again.

After long-term use, the exhaust air volume of Roots blower usually changes and the exhaust air volume decreases. The reason is that the gap between the impeller and the impeller, the impeller and the plate, and the impeller and the shell changes, resulting in the expansion of internal structure leakage, thus affecting the exhaust air volume of Roots blower.

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