We're using it Roots blower transportation Explosion proof gas (for example, nitrogen and argon, gas, natural gas, etc.) can be used to control the amount of leakage by using a closed panel or a single mechanical seal. A group of mechanical seals are arranged at the shaft extension. When transporting oil resistant and other oil resistant media, open wall panel four machine seal can be used. A set of mechanical seals are provided at the end of each of the four bearings to ensure that lubricant from the bearings and gears does not enter the housing. Parts in contact with nitrogen shall not be made of copper and parts in contact with oxygen or chlorine shall not be made of aluminum alloy.
1、 Conveying explosion-proof gas
In 1 Roots blower During operation, in case of abnormal sound, motor heating, shell charging, switch tripping and failure to start, the machine shall be shut down and checked immediately.
2. The special air root fan can operate under normal conditions. At the same time, it is necessary to ensure that the power supply equipment has sufficient capacity and stable voltage. Phase loss operation is strictly prohibited.
3. Keep the fan surface clean and the air inlet and outlet unobstructed.
4. The environmental conditions for using special air root fans should be supplemented or replaced in time.
5. Explosion proof roots blower Store in a dry environment to prevent the motor from getting wet.
Analysis of abnormal heat, vibration and noise
Roots blower It is mainly composed of double row angular contact ball bearing, gear pair, octagonal impeller, wall plate, shell, etc. The main causes of vibration, heat and abnormal noise are due to machining errors or assembly of major components during assembly.
1、 Roots blower The driving gear drives the driven gear to rotate in the opposite direction at the same time, and the impeller rotates to realize the blowing effect. Therefore, the main cause of the machining error of the gear box and the center distance of the gear box is caused by the abnormal shape and distance of the gear shaft.
2. The axial clearance of the bearing is not adjusted correctly, and the vibration of the bearing seat causes the fan vibration. When it is found that the vibration of Roots blower suddenly increases, first of all, listen to whether there is abnormal sound in the bearing rotation, whether the bearing chamber is heated, and adjust the axial clearance of the bearing reasonably. These problems will affect the vibration of the fan.
3、 Roots blower There should be a certain clearance between the two impellers, between the impeller and the wall plate, and between the impeller and the casing, so as to ensure the normal operation of the fan. Usually, in the Roots blower In the maintenance process of, using feeler gauge to measure the clearance will find that the clearance is too small. The main reason is that the maintenance personnel did not adjust the positioning pin between the driven gear ring gear and the gear hub. The occurrence of abnormal conditions, such as vibration and heat.
Summary: whether it's transportation Explosion proof gas Of Roots blower The principle of the fan is the same, but Roots blower The sealing form is not the same, so the customer must make clear with the manufacturer which aspect to use when purchasing, so as to select the corresponding fan for the user.
Use of Roots blower in conveying explosion-proof gas: http://theoxfordjazz.com/xw/107.html