In order to make full use of the characteristics of Roots blower, it is necessary to pay strict attention to relevant application matters, understand how to actually operate, fill the grease of centrifugal blower immediately, carry out pipeline cleaning and filter element cleaning on time, monitor the main parameters of the instrument panel, and deal with abnormalities in a timely manner to prevent the Roots blower from operating under abnormal conditions, causing damage and even common faults of machinery and equipment.
Check the standby machine of roots blower system and make preparations before starting. For example, check whether the valve switches of roots blower and standby roots blower are in place to ensure that the outlet valve of roots blower is fully closed and the inlet valve is fully open. After inspection, start the standby Roots blower according to the operating procedures.
At the same time, start the standby fan of Roots blower and stop the fan in use. When the standby fan operates normally, slowly close it at the outlet of the fan and open the circuit of the standby fan. At the same time, gradually close the auxiliary line valve of the standby fan to make the outlet pressure slightly higher than the working pressure of the fan to be stopped. While performing the above operations, gradually open the auxiliary line valve of the fan in use, and gradually close the outlet valve of the fan in use, so that its outlet pressure is slightly higher than the original outlet working pressure. During the whole process, keep the pressure balance of the fan pressure outlet, and try to ensure the stability of the system pressure.
Gradually close the auxiliary line valve and outlet valve of the Roots blower in use until they are completely closed, and at the same time open the auxiliary line valve and outlet valve of the standby Roots blower until they are fully opened. At this point, stop the operation of the Roots blower in use and complete the switching operation of the Roots blower.
1. Put the control handle on the control cabinet of roots blower into the manual gear, close the suction inlet valve of roots blower and isolate it from the vacuum system.
2. Stop the pump step by step according to the order of front stage water flushing of the main engine and intermediate pump, and never mistake the shutdown order to avoid damaging the machine.
3. When stopping the front stage water flushing pump, first open the blowdown valve of the buffer tank of the water flushing pump, and then stop the pump and shut down.
4. Close the inlet and outlet valves of circulating cooling water.
5. Open the blow down valve of the buffer tank under the intermediate pump to remove the oil stain and condensate water.
6. If it is not used for a long time or in cold season, be sure to stop the machine and flush the remaining water in the pump box with clean water. Open the drain plug of the pump body to drain the remaining water to avoid freezing and cracking the box and casing; Similarly, roots blower needs to discharge cooling water in the pump water jacket to avoid frost cracking.
I believe that after reading the above contents, you should also know how to shut down Roots blower correctly. I hope it will be helpful to you.
Text label: Roots blower
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