Centrifugal pump in use to follow the principles of what?
The use of the centrifugal pump shall meet the following requirements:
The steering of the driver should be the same as that of the pump;
To identify coaxial pipeline pumps and steering pump;
The fixed connection should be no loose parts, specifications and quantity of parts of the lubrication of lubrication should comply with the provisions of equipment technical documents;
The pre lubrication requirements of the site should be carried out in accordance with the provisions of the pre lubrication;
In the instrument, safety protection device should be sensitive, accurate and reliable;
The turning gear should be flexible, no abnormal phenomenon;
Seventhly, high temperature pump before commissioning should pump body for preheating temperature rise evenly, the hourly temperature rises shall not greater than 50 DEG C; and the temperature difference between the working fluid inlet piping shall not be greater than 40 DEG C of the surface of the pump body.
The connecting device is set to eliminate the impact of temperature rise, set up to provide cooling water bypass connections.
Centrifugal pump operation should pay attention to the following points:
No water running, do not adjust the suction population to reduce emissions, to prohibit the operation of low traffic;
Monitor the operation process, completely stop the leakage of the packing box, replace the packing box with a new filler;
To ensure that the mechanical seal is fully flush with water, and the water cooled bearing is prohibited to use the excess water;
The lubricants do not use too much;
The inspection according to the recommended period. Establish the operation record, including the number of hours of operation, adjustment and replacement of packing, add lubricant and other maintenance measures and time. Of centrifugal pump suction and discharge pressure, flow, input power, lotion and bearing temperature and vibration should regularly measured and recorded.
Host of the centrifugal pump is to rely on air pressure to be the lowest pump water to a high, and high pressure most can only support about 10.3M in the water column, so a host of centrifugal pump out of the water 12 meters can not work.