Title: Research on extending service life of centrifugal pump
Abstrct
Centrifugal pumps are widely use in many power plants. centrifugal pump has high speed, small volume and quality, higher flow, simply structure，easy to operate, and such characteristic feature. The fire oil pumps, boiler pumps, steam oil pumps, Condensate pumps, drain pump,s industry pumps, etc. in power plant are centrifugal pumps to transport different kinds of liquid. So, to extend the service life of the pumps is important for the safty of the machines in power plant, it can reduce the mantaince times of the equipments.
This paper discuessed the therory of centrifugal pumps, installition, use, etc. deleted some identity of views which didn’t match the plants. Anylisis some faults of the pumps, gavie some suggestion to extend the service life of these pumps. Especialy discussed how to choose and use the mechanical seal and bears. This paper make a summary that the cause of the mechanical seal’s leak, this seal needs high skills to install. We should anyliss all the causes which can demage the seal, and be sure that the seal fits the pumps and be well lubricated. And also, this paper discussed how the bears demaged, and the intallation theory. These can serve the needs of the mantaince of the pumps in power plants.
Practice has shown that the method of the installation and mantaince on cetrifugal pumps in this paper can improve the service life of the pumps, and makes the power units good safty and better economics
Keywords:cetrifugal pump; service life; mechanical seal; bearing
Article style: Application Study
