Inlet branch pipe device of petrochemical process pump
A technology of petrochemical and shunt tubes, which is applied to parts, pumps, and pump components of elastic fluid pumping devices, and can solve problems affecting the normal operation of the pump, easy damage to the inducer, and reduced service life and efficiency. Achieve the effects of reducing cavitation, ensuring continuity and improving efficiency
Inactive Publication Date: 2018-04-13
季锟
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Problems solved by technology
[0003] At present, in the application of horizontal chemical centrifugal pumps, it is found that the traditional pump uses the front inducer to increase the suction performance of the pump and reduce the necessary NPSH of the pump. Due to the instantaneous impact of the liquid during use, the inducer is easily damaged. It affects the normal operation of the pump, reduces the service life of the pump and the efficiency of the pump
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[0016] The present invention will be further described below in conjunction with accompanying drawing, but not as limiting the present invention:
[0017] The inlet shunt pipe device of the petrochemical process pump includes a pump body 1 and an impeller 2. A pump cover 3 is installed at the right end of the pump body 1. The inlet section of the pump body 1 is provided with a shunt pipe 6. The shunt pipe 6 is formed by a shunt plate 601 , diversion outer tube 602, diversion center tube 603, and diversion inner tube 604. The right end of the diversion plate 601 is provided with a diversion outer tube 602. The inner center of the diversion outer tube 602 is provided with a diversion center tube 603. The outer ring of the diversion center tube 603 Between the inner wall of the distribution outer pipe 602, there are several distribution inner pipes 604 uniformly distributed around the center circumference of the distribution center pipe 603, and the distribution plate 601 is insta...
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The invention discloses an inlet branch pipe device of a petrochemical process pump. The inlet section of a pump body is provided with a shunt pipe, and the shunt pipe comprises a spreader plate, a shunt external pipe, a shunt central pipe, and shunt inner pipes; the shunt external pipe is disposed at the right end of the spreader plate, the shunt central pipe is arranged in the inner center of the shunt external pipe, a plurality of shunt inner pipes which are circular-distributed in the center of the shunt central pipe are arranged between an outer ring of the shunt central pipe and the inner wall of the shunt external pipe, and the spreader plate is mounted on the flange face of the inlet section of the pump body; an internal bore diameter of the spreader plate is equal to that of the shunt external pipe, and four arc-shaped grooves uniformly distributed around the center of a circle are formed in the outer ring of an internal bore of the spreader plate; and the shunt external pipe,the shunt central pipe and the shunt inner pipes are all volute pipes, and inlet ends and outlet ends are all arranged at 180 degrees. According to the inlet shunt pipe device of the petrochemical process pump, the structure is reasonable, the reliability is high, the instantaneous impact force of the liquid is reduced, the cavitation phenomenon is decreased, the service life of the pump body isprolonged, the working continuity of the pump body is ensured, and the efficiency of a pump is improved.
Description
technical field [0001] The invention belongs to the field of centrifugal pumps, in particular to an inlet shunt pipe device of a ZA type petrochemical process pump. Background technique [0002] ZA type petrochemical process pump is mainly used in petroleum, chemical industry, water supply plant, power station, food and other industrial sectors to transport clean or particle-containing liquid, low temperature or high temperature liquid, neutral or corrosive liquid. [0003] At present, in the application of horizontal chemical centrifugal pumps, it is found that the traditional pump uses the front inducer to increase the suction performance of the pump and reduce the necessary NPSH of the pump. Due to the instantaneous impact of the liquid during use, the inducer is easily damaged. It affects the normal operation of the pump, reduces the service life of the pump and the efficiency of the pump. Contents of the invention [0004] The object of the present invention is to so...
Claims
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IPC IPC(8): F04D29/42F04D29/66
CPCF04D29/4273F04D29/4293F04D29/669
Inventor 季锟
Owner 季锟