Strict adherence to safety operating procedures is crucial to ensure the accident-free operation of Horizontal centrifugal water pump. This operating procedure is designed to protect personnel safety and prevent equipment damage. Always refer to the manufacturer's specific manual or consult relevant technical personnel.
1、Pre-Startup Safety Checks
Before initiating any startup sequence for the Horizontal centrifugal water pump, a thorough inspection is mandatory. Verify that all electrical connections are secure and properly grounded. Ensure the pump shaft rotates freely by hand.Confirm that the Horizontal centrifugal water pump is properly primed; the casing must be completely filled with liquid to prevent dry running, which can cause severe mechanical seal failure.
2、Check that Horizontal centrifugal water pump suction and discharge valves are in the correct position, typically with the suction valve fully open and the discharge valve partially closed for startup.
3、Startup and Operational Monitoring
To start the Horizontal centrifugal water pump, energize the motor while closely monitoring the ammeter and pump discharge pressure. Gradually open the discharge valve until the desired operating point is reached. Never operate the Horizontal centrifugal water pump with the discharge valve closed for an extended period.
4、During operation, continuously monitor for unusual vibrations or noises from the Horizontal centrifugal water pump, as these are primary indicators of issues like cavitation or misalignment. Be alert for any signs of leakage around the pump seals or casing.
5、Safe Shutdown and Isolation
For a safe shutdown, begin by gradually closing the discharge valve. This step minimizes potential water hammer effects in the system. Once the valve is nearly closed, de-energize the motor to stop the Horizontal centrifugal water pump.
Finally, close the suction valve and isolate the pump from the system by closing relevant isolation valves. Always lock out and tag out the power source before performing any maintenance on the Horizontal centrifugal water pump.
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