Second-level cantilever type small flow centrifugal pump

Abstract

The invention belongs to the field of centrifugal pump devices, and particularly relates to a second-level cantilever type small flow centrifugal pump. The second-level cantilever type small flow centrifugal pump comprises a pump body, wherein the front end of the pump body is provided with a front pump cover, and the rear end of the pump body is connected with a motor through a bracket; the pump body is internally horizontally provided with a pump shaft, and a motor shaft is sleeved with the pump shaft; the pump shaft is axially provided with a first-level impeller and a second-level impeller, the pump cover is internally provided with a suction inlet which corresponds to the pump shaft, and the suction inlet is internally provided with an inducer; a guiding body is arranged between the first-level impeller and the second-level impeller, the inducer and the guiding body are both arranged on the pump shaft, and the periphery of the pump body is provided with a discharge opening. The second-level cantilever type small flow centrifugal pump provided by the invention has the advantages that the structure is simple, the manufacture is easy, a flow state is stable, and the pressure is constant without fluctuation; a condition that a working condition is stable is guaranteed, and the flow is exact; due to the universality and interchangeability design, the spare part storing and managing cost and the comprehensive operating cost of the pump are reduced, and the second-level cantilever type small flow centrifugal pump is a novel replacing product in the field of small flow centrifugal pumps based on unique durability, reliability and economy.

Description

technical field [0001] The invention relates to a two-stage cantilever type small-flow centrifugal pump, which belongs to the field of centrifugal pump devices. Background technique [0002] In chemical, petrochemical, oil refinery, coal chemical, power plant, non-ferrous metal, paper industry, pharmaceutical industry, food industry, sugar industry, steel mill, waste acid treatment, water supply and drainage, urban water supply, grain deep processing and other industries Liquids that do not contain solid particles usually require a high-lift centrifugal pump, but the commonly used centrifugal pump has only one water outlet, and the relative position between the water inlet and the water outlet is single, the adaptability is poor, and the structure is complex, which affects the fluid flow. stability. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a two-stage cantilever type small-flow centrifugal pump with reaso...

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Problems solved by technology

[0002] Conveying in chemical, petrochemical, oil refinery, coal chemical, power plant, nonferrous metal, paper industry, pharmaceutical industry, food industry, sugar industry, steel mill, waste acid treatment, water supply and drainage, urban water supply, grain deep processing and other industries Liquids that do not contain solid particles usually require a high-lift centrifugal pump, but the commonly used centrifugal pump has only one water outlet, and the relative position between the water inlet and the water outlet is single, the adaptability is poor, and the structure is complex, which affects the flow of the fluid. stability

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