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What are the environmental requirements for the installation and commissioning of Roots blower and the operation of Roots blower?

Source: Roots blower manufacturer Published on: February 17, 2022 Hits:

   Roots blower There are three modes of vibration allowed by the machine, namely amplitude, vibration speed and acceleration. According to the standards specified by each specialty: the forging hammer adopts amplitude and acceleration as the allowable values; The amplitude of crusher and motor is the allowable value; The compressor and ventilator take the amplitude as the control standard at low speed, and the Roots blower takes the vibration speed as the control standard at medium and high speed. The height of the foundation shall meet the structural requirements, that is, to ensure that there is sufficient concrete protective layer at the bottom of the bolt embedded parts, and the pit bottom shall be as thin as possible under the condition of a certain thickness (guaranteed strength), which can reduce the disturbing moment for the compressor and ventilator foundation with horizontal disturbing force, so as to reduce the amplitude generated by the coupled vibration of horizontal swing. The centrifugal blower transmits the mechanical energy of the motor to the liquid by the action of the rotating impeller on the gas.

     

 Installation and commissioning of Roots blower, and what are the environmental requirements for the operation of Roots blower

As a result of the centrifugal blower, the velocity energy (kinetic energy) and pressure energy of the gas from the impeller inlet to the outlet are increased. The gas discharged by the impeller passes through the pressure chamber, most of the velocity energy is converted into pressure energy, and then is transported along the discharge pipeline. At this time, the vacuum or low pressure is formed at the impeller inlet due to the gas discharge, Gas is pressed into the inlet of the impeller under the action of atmospheric pressure, so the rotating impeller continuously inhales and discharges gas. If the load requires constant flow effect, roots blower shall be used. Because Roots blower is a constant flow fan, the main working parameter is the air volume, and the output pressure changes with the change of pipe and load, and the air volume changes little.
Roots blower is a high pressure fan. Roots blower is a positive displacement fan. The air volume conveyed is proportional to the number of revolutions, and the gas is conveyed from the suction side to the discharge side. If the load needs constant pressure effect, centrifugal fan is used. Because the centrifugal fan is a constant pressure fan, the main working parameter is the air pressure, and the output air volume changes with the change of the pipeline and load, and the air pressure changes little. Centrifugal fan with low air pressure. The compression process of air is often played by several working impellers assisted by centrifugal force. The centrifugal fan has the characteristic of square torque, while the roots blower basically has the characteristic of constant torque.
Operating environment requirements of Roots blower:
1. The operating pressure shall not be higher than the pressure rise range specified on the nameplate;
2. The inlet air temperature of medium shall not be more than 40 ℃ generally;
3. The temperature of middle bearing shall not be higher than 95 ℃, and the temperature of lubricating oil shall not be higher than 65 ℃;
4. The clearance between roots blower impeller and casing, impeller and side plate, impeller and impeller has been adjusted when leaving the factory, and the clearance shall be ensured when reassembling;
5. The content of medium particles shall not exceed 100mg/m3, and the maximum size of particles shall not exceed half of the minimum working clearance;
6. Check whether there is any place where the inlet and outlet connection parts forget to be firm, and whether the supporting parts of piping are complete.
The above is the operating environment of Roots blower. I believe you will understand it after reading it. I hope it will help you.


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