CN104358691A - Multi-stage axial flow pump - Google Patents

Multi-stage axial flow pump Download PDF

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Publication number
CN104358691A
CN104358691A CN201410560277.XA CN201410560277A CN104358691A CN 104358691 A CN104358691 A CN 104358691A CN 201410560277 A CN201410560277 A CN 201410560277A CN 104358691 A CN104358691 A CN 104358691A
Authority
CN
China
Prior art keywords
impellers
pump
flow pump
axial flow
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410560277.XA
Other languages
Chinese (zh)
Inventor
康净爽
Original Assignee
康净爽
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 康净爽 filed Critical 康净爽
Priority to CN201410560277.XA priority Critical patent/CN104358691A/en
Publication of CN104358691A publication Critical patent/CN104358691A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00Axial-flow pumps
    • F04D3/005Axial-flow pumps with a conventional single stage rotor

Abstract

The invention discloses a multi-stage axial flow pump. The multi-stage axial flow pump comprises a pump body, a pump shaft, a water inlet pipe and a water outlet pipe, and is characterized in that two to four impellers are coaxially connected to the pump shaft in series. Due to the structure improvement, the impellers operate in a pump body cavity with extremely high concentricity, liquid is pressurized step by step by the impellers, the pressure is multiplied step by step, and the lift is improved accordingly. Except for the first stage of impeller, the other stages of impellers work in the pressurized liquid, the liquid is not easy to vaporize, the phenomenon that the impellers are damaged by cavitation can be avoided, the service lives of the impellers are prolonged, and the multi-stage axial flow pump can be widely applied to conveying of water, oil and other liquid.

Description

Multi-stage axial-flow pump
Technical field
The present invention relates to a kind of pump, particularly a kind of Multi-stage axial-flow pump.
Background technique
Existing axial-flow pump only has single axial-flow blower, and the lift of generation is limited, and the most high-lift of middle-size and small-size axial-flow pump is only 11.51 meters, and the lift of Large Axial Flow Pump is lower, uses, greatly limited to its Applicable scope under being suitable only for large discharge, low lift environment.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, and the Multi-stage axial-flow pump that a kind of lift is high, Applicable scope is wide is provided.
The object of the present invention is achieved like this: Multi-stage axial-flow pump, comprises the pump housing, pump shaft, intake pipe, outlet pipe, it is characterized in that coaxial serial connection 2 ~ 4 impellers on pump shaft.
Accompanying drawing explanation
Fig. 1 is multistage common axial flow pump structure schematic diagram
Fig. 2 is multistage submersible axial flow pump structural representation
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.
As shown in Figure 1, multistage common axial-flow pump comprises the pump housing 1, pump shaft 2, intake pipe 3, outlet pipe 4, two impellers 5 are fastened on pump shaft 2 one by one, adopts flat key to be connected between pump shaft 2 with impeller 5 wheel hub.
As shown in Figure 2, multistage submersible axial flow pump is in existing single-stage submerged axial-flow pump structure, after axially lengthening, then is fastened on pump shaft 7 one by one by two impellers 8, adopts flat key to be connected between pump shaft 7 with impeller 8 wheel hub to the pump housing 6, pump shaft 7.
The present invention is owing to adopting above architecture advances, and multiple impeller operates in the pump housing chamber that concentricity is high, and liquid is by impeller upper pressure step by step, and pressure then increases exponentially step by step, and lift also improves thereupon.Except first stage impeller, other grade of impeller works in the liquid having pressure, and liquid is not easy vaporization, can stop impeller and be damaged phenomenon by cavitation and occur, extend impeller working life.Conveying water, oil and other liquid can be widely used in.

Claims (1)

1. Multi-stage axial-flow pump, comprises the pump housing (1), pump shaft (2), intake pipe (3), outlet pipe (4), it is characterized in that: the upper coaxial serial connection of pump shaft (2) 2 ~ 4 impellers (5).
CN201410560277.XA 2014-10-14 2014-10-14 Multi-stage axial flow pump Pending CN104358691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410560277.XA CN104358691A (en) 2014-10-14 2014-10-14 Multi-stage axial flow pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410560277.XA CN104358691A (en) 2014-10-14 2014-10-14 Multi-stage axial flow pump

Publications (1)

Publication Number Publication Date
CN104358691A true CN104358691A (en) 2015-02-18

Family

ID=52525987

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410560277.XA Pending CN104358691A (en) 2014-10-14 2014-10-14 Multi-stage axial flow pump

Country Status (1)

Country Link
CN (1) CN104358691A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109930655A (en) * 2019-04-01 2019-06-25 内蒙古农业大学 A kind of water circulation system for sponge urban construction
WO2019200681A1 (en) * 2018-04-16 2019-10-24 江苏大学 Three-stage contra-rotating axial flow pump driven by single shaft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019200681A1 (en) * 2018-04-16 2019-10-24 江苏大学 Three-stage contra-rotating axial flow pump driven by single shaft
US11346357B2 (en) 2018-04-16 2022-05-31 Jiangsu University Individual axis driven three stage counter rotating axial flow pump
CN109930655A (en) * 2019-04-01 2019-06-25 内蒙古农业大学 A kind of water circulation system for sponge urban construction

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150218