CN107676310A - Anti-suck axial-flow pump - Google Patents
Anti-suck axial-flow pump Download PDFInfo
- Publication number
- CN107676310A CN107676310A CN201711131704.2A CN201711131704A CN107676310A CN 107676310 A CN107676310 A CN 107676310A CN 201711131704 A CN201711131704 A CN 201711131704A CN 107676310 A CN107676310 A CN 107676310A
- Authority
- CN
- China
- Prior art keywords
- pump case
- axial
- pump
- drive shaft
- suck
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/528—Casings; Connections of working fluid for axial pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Abstract
The present invention provides a kind of anti-suck axial-flow pump.The present invention includes the first pump case and the second pump case being connected with the first pump case, the first described pump case bottom is provided with water-inlet horn mouth, top is provided with Discharging bent-tube, the second described pump case is arranged on the top of the first described pump case, power set are provided with inside second pump case, the power set connect drive shaft, the drive shaft extends downwardly through the first described pump case and along the axial centre of the first pump case, the bottom of the drive shaft is provided with stator and impeller, filter vat is provided with described Discharging bent-tube, the front and rear sides of described filter vat are respectively arranged with one layer of filter screen, one-way water outlet valve is provided among described filter vat.The present invention can prevent that axial-flow pump suck-back effect is good, avoid occurring because the floating object in liquid causes valve plate to block the situation of failure.
Description
Technical field：
The present invention relates to a kind of anti-suck axial-flow pump, belong to mechanical equipment technical field.
Background technology：
Axial-flow pump impeller is equipped with 2~7 blades, in tubular pump case internal rotation.Fixed guide vane is housed on the pump case of upper impeller,
To eliminate the rotary motion of liquid, it is allowed to be changed into being axially moved, and the kinetic energy of rotary motion is changed into pressure energy.Axial-flow pump
Stage type is made in typically single stage type, minority.Range of flow is very big, be 180~360 ten thousand steres/when；Lift is typically at 20 meters
Below.Axial-flow pump is generally vertical, and impeller is immersed under water, also there is horizontal or inclined axial flow.The impeller of small axial flow pump
, it is necessary to be started with vacuum pump discharges diversion when installation site is higher by the water surface.The blade of axial-flow pump is divided to fixed and adjustable two kinds
Structure.The applying working condition of Large Axial Flow Pump often needs to make larger variation in operation, adjusts the established angle of blade and pump can be made to exist
High efficient area operation is maintained under different operating modes.The blade angle of pony pump is usually fixed.Axial-flow pump is primarily adapted for use in
The occasion of low lift, big flow, such as irrigation, water drainage, dock draining, the water level regulation of canal ship lock, or follow as power plant is large-scale
Ring water pump.The higher axial-flow pump of lift（Twin-stage is made if necessary）It is available for the hydraulic jet propulsion of shallow draft ship to be used.
Existing axial-flow pump, if shut down suddenly, can cause liquid suck-back backflow phenomenon during use, to understand
Certainly this problem, check valve generally is set in the water outlet of axial-flow pump, but when containing floating object in the liquid of conveying, held
The phenomenon of check valve blocking failure is easily caused by floating object.
The content of the invention：
The purpose of the present invention is to provide a kind of anti-suck axial-flow pump for above-mentioned problem, prevents axial-flow pump suck-back effect
It is good, avoid occurring because the floating object in liquid causes valve plate to block the situation of failure.
Above-mentioned purpose is realized by following technical scheme：
Anti-suck axial-flow pump, including the first pump case and the second pump case for being connected with the first pump case, the first described pump case bottom is set
Water-inlet horn mouth is equipped with, top is provided with Discharging bent-tube, and the second described pump case is arranged on the top of the first described pump case, institute
State and power set are provided with inside the second pump case, the power set connect drive shaft, and the drive shaft passes through described first
Pump case simultaneously extends downwardly along the axial centre of the first pump case, and the bottom of the drive shaft is provided with stator and impeller, and described goes out
Water pipe bent position is provided with filter vat, and the front and rear sides of described filter vat are respectively arranged with one layer of filter screen, in described filter vat
Between be provided with one-way water outlet valve.
Described anti-suck axial-flow pump, described power set use motor and decelerator.
Beneficial effect：
1. the present invention plays a protective role by being separately provided filter vat, and by front and rear two layers of filter screen to check valve, avoid
Occur because the floating object in liquid causes valve plate to block the situation of failure, prevent that axial-flow pump suck-back effect is good.
Brief description of the drawings：
Fig. 1 is the structural representation of the present invention.
1, first pump case in figure；2nd, the second pump case；3rd, water-inlet horn mouth；4th, Discharging bent-tube；5th, power set；6th, drive
Axle；7th, stator；8th, impeller；9th, filter vat；10th, filter screen；11st, one-way water outlet valve.
Embodiment：
Embodiment 1：
As shown in Figure 1：The anti-suck axial-flow pump of the present embodiment, including the first pump case 1 and the second pump case for being connected with the first pump case
2, the first described pump case bottom is provided with water-inlet horn mouth 3, and top is provided with Discharging bent-tube 4, and the second described pump case is set
Power set 5 are provided with inside the top of the first described pump case, second pump case, the power set connect drive shaft
6, the drive shaft is through the first described pump case and is extended downwardly along the axial centre of the first pump case, the bottom of the drive shaft
Stator 7 and impeller 8 are provided with, filter vat 9 is provided with described Discharging bent-tube, the front and rear sides of described filter vat are set respectively
One layer of filter screen 10 is equipped with, one-way water outlet valve 11 is provided among described filter vat.The present embodiment by being separately provided filter vat,
And check valve is played a protective role by front and rear two layers of filter screen, avoids losing because the floating object in liquid causes valve plate to block
The situation of spirit occurs, and prevents that axial-flow pump suck-back effect is good.
Described anti-suck axial-flow pump, described power set use motor and decelerator.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, in addition to
The technical scheme being made up of above technical characteristic equivalent substitution.The unaccomplished matter of the present invention, belongs to those skilled in the art's
Common knowledge.
Claims (2)
1. a kind of anti-suck axial-flow pump, it is characterized in that：The second pump case being connected including the first pump case and with the first pump case, it is described
First pump case bottom is provided with water-inlet horn mouth, and top is provided with Discharging bent-tube, and the second described pump case is arranged on described the
The top of one pump case, the second pump case the inside are provided with power set, and the power set connect drive shaft, the drive shaft
Extend downwardly through the first described pump case and along the axial centre of the first pump case, the bottom of the drive shaft be provided with stator and
Impeller, filter vat is provided with described Discharging bent-tube, the front and rear sides of described filter vat are respectively arranged with one layer of filter screen, institute
One-way water outlet valve is provided among the filter vat stated.
2. anti-suck axial-flow pump according to claim 1, it is characterized in that：Described power set use motor and deceleration
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711131704.2A CN107676310A (en) | 2017-11-15 | 2017-11-15 | Anti-suck axial-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711131704.2A CN107676310A (en) | 2017-11-15 | 2017-11-15 | Anti-suck axial-flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676310A true CN107676310A (en) | 2018-02-09 |
Family
ID=61149341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711131704.2A Pending CN107676310A (en) | 2017-11-15 | 2017-11-15 | Anti-suck axial-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397597A (en) * | 2019-06-20 | 2019-11-01 | 高邮市环邮泵业有限公司 | A kind of sealing effect is good and the axial-flow pump of Unidirectional flow-limiting |
| CN112049190A (en) * | 2020-07-24 | 2020-12-08 | 浙江大学 | Vertical axial-flow pump reverse flow diversion system |
-
2017
- 2017-11-15 CN CN201711131704.2A patent/CN107676310A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397597A (en) * | 2019-06-20 | 2019-11-01 | 高邮市环邮泵业有限公司 | A kind of sealing effect is good and the axial-flow pump of Unidirectional flow-limiting |
| CN110397597B (en) * | 2019-06-20 | 2021-01-29 | 高邮市环邮泵业有限公司 | Axial-flow pump with good sealing effect and one-way flow limiting function |
| CN112049190A (en) * | 2020-07-24 | 2020-12-08 | 浙江大学 | Vertical axial-flow pump reverse flow diversion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180209 |