Analysis of the working principle of circulating pump

Circulation pump if the stable working environment, the pump flow changes smaller equipment. It has the characteristic of a low head, which is normally used to overcome the pressure drop in a circulatory system. Making it make breakthroughs in matching system characteristics, reliability, service life, noise and other aspects, creating favorable conditions for the widespread adoption of forced circulation. As its range of use increases, the understanding of the working principle of circulating pumps has received more attention. Working principle of circulating pump Analysis of circulating pump Working principle: 56LKXA-25 pump is a vertical, rotor withdrawable circulating pump, design flow 4.5m? / S, head 25 meters, design speed of 595pm, the minimum depth of submergence 3m. The circulating pump is mainly composed of a suction bell mouth, an impeller chamber, an impeller, a guide vane body, an external pipe and a discharge elbow, a guide vane and a guide vane, a spindle, a motor support, a support plate, a rigid coupling part, Seal components, sleeve coupling components. Motor and pump direct connection, single-base installation, spit outlet under the base layer; pump made rotor can be withdrawn, that is, when the pump repair demolition do not have to disassemble the outer cylinder, the external piping and installation of the foundation, The parts are drawn upward from the pump housing; the clearance between the impeller and the impeller chamber is adjusted by the adjusting nut at the upper coupling; the axial thrust of the pump is borne by the motor. The role of circulating water pump is to supply cooling water to the condenser of the steam turbine to condense the exhaust of the steam turbine. In power plants, circulating pumps also provide cooling water to oil coolers, water coolers, generator air coolers, and the like. The lower part of the pump is submerged in water, lubricated with guide bearings, and a shaft protection tube separates the clean lubrication water from the pump delivery. Pump water (factory water) from the vertical bell mouth down into the impeller chamber, the main shaft impeller rotation, resulting in centrifugal force, to attract water flow up into the guide vane body, guide vane body effectively flow of water discharged impeller energy conversion For the pressure energy, so that it can efficiently enter the pump chamber (the middle of the outer pipe, the outlet pipe), the external pipe, spit out the elbow from the guide body to the pump outlet part of the flow path, and then through the guide role, from the guide vane The pressured pump delivers water that is discharged smoothly and smoothly. Through the above analysis, we can clearly know that the pump made of circulating pump rotor withdrawable, that is, when the pump repair demolition do not have to disassemble the outer cylinder, the external piping and installation of the foundation, the need to repair the transfer from the pump housing Out; the gap between the impeller and the impeller chamber is adjusted by the adjusting nut at the upper coupling. With the rapid development of science and technology, people have more expectations for such products. How to maintain the advantages of such products requires more efforts from all walks of life.

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