Detailed explanation of installation and commissioning steps of Roots blower:

Roots blower is installed before leaving the factory. Only connect the inlet silencer with the inlet, the outlet silencer with the outlet, and then connect the outlet silencer with the pipeline.

Let's talk about Precautions for installation of Roots blower:

1、 Roots Blower It shall be installed in a place with solid ground, and sufficient space shall be reserved around it to facilitate inspection, maintenance and repair.

2、 Roots Blower The foundation shall be kept level under the base. It is recommended to pad damping rubber or cast and install with bolts at the four corners of the base to ensure that the Roots blower operates stably with low vibration.

3. The connecting pipeline between Roots blower and the system shall be sealed reliably. For small vacuum pumps, metal pipeline connection gaskets can be used, and oil resistant rubber can be used. For small roots blower, vacuum rubber hose can be used, and the pipe diameter shall not be less than the suction diameter of Roots blower, and the pipeline shall be short with fewer elbows. (When welding the pipeline, the welding slag in the pipeline shall be removed, and it is strictly prohibited to enter the vacuum pump cavity.)

4. In the connecting pipeline, the user can install a valve and vacuum gauge above the air inlet of Roots blower to check the limit pressure of Roots blower at any time.

5. Connect the power supply according to the regulations of the motor label, ground the ground wire, and install fuses and thermal relays of appropriate specifications.

6. When the Roots blower is powered on for test run, the motor belt must be removed, and the vacuum pump can be put into use only after confirming that the rotation direction meets the specified direction. Reverse the Roots blower to inject oil. (Turn according to the direction indicated by the protective cover)

7. For Roots blower with cooling water, connect cooling water as required.

8. If a solenoid valve is installed at the mouth of roots blower, the valve and roots blower shall act simultaneously.

9. When the exhaust gas of Roots blower affects the working environment, a pipeline can be installed at the exhaust port to lead away or install an oil mist filter.

Commissioning of Roots blower:

Roots blower commissioning includes inching commissioning, no-load operation commissioning, full pressure commissioning and whole system commissioning.

1. Jog commissioning refers to completely separating the fan from the system on site and disconnecting the inlet and outlet pipes of the fan. Manually turn the gear, after confirming that there is no jam inside the machine body, start the fan, and then immediately shut it down, and then observe whether the rotation direction of the fan is the same as the rotation direction marked on the machine body. If it is different, for three-phase motors, exchange cables of any two phases and reconnect them. Because the structure of Roots blower cannot be reversed.

2. No load operation commissioning means that, on the premise of inheriting the previous step and confirming the correct rotation direction of the fan, start the fan, operate continuously for half an hour, and observe whether the fan operates stably and whether there is abnormal noise and vibration.

3. Full pressure test refers to the installation of a valve at the outlet of the fan (to avoid noise, a silencer is connected behind the valve). After starting the fan, a simulated load is applied to the fan by gradually closing the valve until the fan pressure reaches the pressure shown on the nameplate, and then the fan is operated continuously for about 2 hours to ensure that there is no abnormal sound, The temperature is stable (after the fan is pressurized, the temperature gradually rises, generally as short as half an hour, and as long as 2 hours. The temperature tends to be stable and stops rising. If it continues to rise, most problems exist), and the fan current is within the range shown on the nameplate.

4. The whole system test refers to connecting the fan into the working system and starting the trial operation, which shall last for more than half an hour. Since the design generally has design margin, after the fan is connected to the system, the actual operating pressure and current should be lower than the pressure shown on the nameplate. If the overload condition occurs, it often means that the model selection is improper, which requires strict troubleshooting and analysis.

The above is the precautions for the installation and commissioning of Roots blower introduced by Shandong Xinqianshun Roots blower manufacturer. I hope it can help you!