Efficient high-pressure horizontal multi-stage centrifugal pump

Abstract

An efficient high-pressure horizontal multi-stage centrifugal pump belongs to centrefugal pump technology field concluding indraft section, middle sect, guild blade, impeller, pump axle, water lubricate bearing, outlet sect, axial force balancing mechanism and seal etc. Its character is that indraft of the pump layouted radial is different from all preceding editions, so that it greatly improves the efficiency of the impeller and the hydraulic pump cavitation performance. The pump adopts water lubrecate bearing installed in wterpower components interor; the lubrecate bearing closed to the outlet be considered a balance hub cmbines with balacing tray to a auto balacing mechanism. The pump needed a seal is compact and have one axle body because of adopting water lubrecate bearing. Its advantage is: less friction, high efficiency, reliability, and vulnerability of small,ease of rapid entry. The present invention applies to all occasions conveyor cleaning liquid.

Description

technical field [0001] The invention belongs to the technical field of centrifugal pumps, and in particular relates to a high-efficiency high-pressure horizontal multistage centrifugal pump, which is mainly used to provide seawater reverse osmosis high-pressure energy in reverse osmosis seawater desalination production devices with a level of more than 10,000 tons, and can also be applied to the transportation of clean media . Background technique [0002] The power consumption of the high-pressure pump providing reverse osmosis pressure in the reverse osmosis seawater desalination production device accounts for 70% of the power consumption in the entire water production process. Therefore, the efficiency of the high-pressure pump directly affects the price of seawater desalination per ton of water, and Most of the production devices are left unattended and have no professional equipment maintenance and repair personnel. As a result, the requirements for pump efficiency, rel...

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Problems solved by technology

[0003] In order to solve the problems of low efficiency, complex structure and difficult maintenance in the prior art, the present invention provides a high-efficiency high-pressure horizontal multi-stage centrifugal pump, which is composed of water inlet and outlet parts - water inlet section, water outlet section, hydraulic components for energy conversion - First-stage impeller, guide vane, middle section, secondary impeller, axial force automatic balance device-sliding bearing (discharge section), balance hub-bearing, wear-resistant ring, balance disc, return pipe, supporting parts-sliding bearing (suction section ), shaft sleeves, mechanical seal parts-back cover, mechanical seal and couplings-impeller nuts, through-bar bolts, which are characterized in that the inlet of the multi-stage centrifugal pump is changed from traditional radial suction to axial suction, and the supporting parts are composed of The liquid lubricated bearings installed inside the hydraulic components replace the metal bearings, and the axial force automatic balance device uses sliding bearings as the balance drum. The stage guide vane also serves as a bearing support, canceling the shaft extension at one end, and only needs a set of mechanical seal

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