Centrifugal pump use matters needing attention

Centrifugal pump use matters needing attention

Pump commissioning should meet the following requirements:

① the steering of the drive should be the same as the direction of the pump;

② to identify the pipeline pump and coaxial pump steering;

③ the fixed convergence of the parts should be no loose, smooth parts of the smoothing agent should be added to the standard and the number of equipment skill files should be consistent with the rules;

④ pre-smooth requirements of the site should be pre-smooth rules;

⑤ the appearance of the instructions, safety equipment should be active, accurate and reliable;

⑥ wheel car should be sensitive, no abnormal phenomenon;

⑦ high temperature pump should be carried out before the test run the pump preheat, the temperature should be increased uniformly, the hourly temperature rise should not be greater than 50 ℃; pump surface and the operating medium imported technology should not be greater than 40 ℃ temperature difference;

⑧ set up to eliminate the impact of convergence temperature equipment, set the bypass connection equipment supply cooling water.

Centrifugal pump operation should note the following points:

① stop the water run, do not adjust the suction inlet to reduce the displacement, to stop running at low flow rate;

② monitoring the operation process, completely hinder the packing box leakage, replace the packing box to use new packing;

③ to ensure that the mechanical seal with plenty of water erosion, water-cooled bearings to stop the use of excessive water flow;

④ smooth agent do not use too much;

⑤ according to the referral cycle to check. Establish operating records, including the number of hours of operation, packing adjustment and replacement, adding smoothing agent and other protection methods and time. On the centrifugal pump suction and discharge pressure, flow, input power, lotion and bearing temperature and oscillation conditions should be measured measurement records.

⑥ centrifugal pump host is relying on atmospheric pressure to lower the water pumped high, and the atmospheric pressure can only support the water column of about 10.3m, so the centrifugal pump from the surface of the host 12 meters can not work.