CN206458599U - A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin - Google Patents
A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin Download PDFInfo
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- CN206458599U CN206458599U CN201621453101.5U CN201621453101U CN206458599U CN 206458599 U CN206458599 U CN 206458599U CN 201621453101 U CN201621453101 U CN 201621453101U CN 206458599 U CN206458599 U CN 206458599U
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- screw rod
- flow distribution
- distribution plate
- circular arc
- arc type
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Abstract
The utility model is related to a kind of chevron shaped double suction twin-screw water pump that becomes a mandarin, including Quimby pump, Quimby pump includes screw rod pump inlet, screw rod, screw rod pump discharge, screw rod bushing, and the screw rod bushing most external of screw rod bushing is towards screw rod pump inlet, and the screw rod includes driven screw, driving screw rod；The screw rod pump inlet of the Quimby pump is provided with chevron shaped flow distribution plate, chevron shaped flow distribution plate is made up of left circular arc type flow distribution plate, right circular arc type flow distribution plate, left circular arc type flow distribution plate is fixedly connected towards one end of screw rod pump inlet with right circular arc type flow distribution plate towards one end of screw rod pump inlet, and left circular arc type flow distribution plate, right circular arc type flow distribution plate fixed connection place and screw rod pump inlet, the import and export axis coaxle of screw rod pump discharge, left circular arc type flow distribution plate, right circular arc type flow distribution plate are arranged along axisymmetrical is imported and exported.Reasonable in the utility model structure, simple and science, it is ensured that Quimby pump is safely and smoothly run, and extends the service life of pump.
Description
Technical field
The utility model is related to a kind of new screw water pump, is specifically a kind of chevron shaped double suction twin-screw water pump that becomes a mandarin, category
In hydraulic technical field.
Background technology
Screw pump is positive displacement pump, and it is to change to inhale by the volume of the sealing space formed by screw rod and screw rod bushing
Enter and discharge liquid.Screw pump can be divided into single screw rod, twin-screw, three screw rods and five-screw pump according to screw rod number.Quimby pump
With pumped (conveying) medium is steady, pressure fluctuation is small, have low certain suction capacity, noise, efficiency high, long lifespan, reliable operation and
Easy to maintenance the features such as.
Quimby pump is a kind of screw pump of external toothing.It is main by a driving screw rod and a driven screw and bag
Bushing composition containing this two screw rods.By intermeshing principal and subordinate's screw rod come drawing fluid, the driving screw rod of the pump is dynamic by original
Machine is driven, and driven screw is then driven by synchromesh gear by driving screw rod.When screw rod rotates, by the engagement between screw rod with
And the cooperation in screw rod and pump housing hole, annular seal space one by one is formed in the pump housing, and suck liquid.Rotated with the continuation of screw rod,
The liquid of suction collects along axis from two ends to the center of pump, is discharged by the outlet of pump.Quimby pump is divided into closed type and non-
The major class of closed type two, Quimby pump can be mixed with transport viscosity scope very broad various media with gas-liquid delivery, solid-liquid
It is defeated, it is widely used in ship, petrochemical industry, lathe and engineering machinery.
There is problems with current Quimby pump：
1）Bad inflow condition such as vortex, backflow etc. makes velocity flow profile uneven, destroys intrinsic flow field so that enter
The water (flow) direction of screw rod shifts, and this not only results in pump efficiency decline, can also deteriorate operating condition, induces pump cavitation
And hydraulic vibration.
2) double suction import produces direct impact to screw rod bushing to flow so that screw rod bushing is with screw rod spacing in operating condition
Compared with intermittently reducing under inoperative operating mode, the pump housing is caused to vibrate, harm water pump operation safety shortens the service life of pump.
Granted patent CN103388580B, discloses a kind of Split mechanical seal and Quimby pump, the utility model
Two parts up and down are cutd open into by the housing to Quimby pump and screw rod pedestal and improve the sealed effect of split surface.Granted patent
CN100460681C, discloses a kind of involute tooth shape of screw of big flow Quimby pump.
Existing disclosure and granted patent pay close attention to mechanical structure, there is no Quimby pump water inlet structure patent to solve inflow condition
Difference influence pump performance and the impact that becomes a mandarin bring the relevant issues such as unit vibration.
Utility model content
The purpose of this utility model aiming at current double-suction double screw pump become a mandarin fluidised form it is not good and vibration the problem of, propose
A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin.
What the purpose of the utility model patent was realized in：A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin, including it is double
Screw pump, the Quimby pump includes screw rod pump inlet, screw rod, screw rod pump discharge, screw rod bushing, the screw rod bushing of screw rod bushing
Most external includes driven screw, driving screw rod, driven screw and driving screw rod radius phase towards screw rod pump inlet, the screw rod
Together；It is characterized in that：The screw rod pump inlet of the Quimby pump is provided with chevron shaped flow distribution plate, and the chevron shaped flow distribution plate is by left circular arc
Type flow distribution plate, right circular arc type flow distribution plate composition, left circular arc type flow distribution plate are shunted towards one end of screw rod pump inlet and right circular arc type
Plate face is fixedly connected to one end of screw rod pump inlet, and left circular arc type flow distribution plate, right circular arc type flow distribution plate fixed connection place and spiral shell
Axis is imported and exported on bar pump inlet, the import and export axis coaxle of screw rod pump discharge, left circular arc type flow distribution plate, right circular arc type flow distribution plate edge
It is arranged symmetrically.
Left circular arc type flow distribution plate, the arc angle of right circular arc type flow distribution plate are 80 °~90 ° on the chevron shaped flow distribution plate,
Cylindrical arc angle is 60 °~70 °, and inner arc radius is 1.7~1.8 times of driving screw rod radius, and outer arc radius is
2.0~2.1 times of driving screw rod radius.
Left circular arc type flow distribution plate on the chevron shaped flow distribution plate, the Inner arc terminal A of right circular arc type flow distribution plate are to exporting axle
The distance of line is 0.1~0.15 times of driving screw rod radius.
There are 3 ends on the chevron shaped flow distribution plate being made up of left circular arc type flow distribution plate, right circular arc type flow distribution plate, and often
Individual end is circular shape end, and the arc radius of each end is 0.1~0.2 times of driving screw rod radius.
The chevron shaped flow distribution plate towards the chevron shaped end summit B at screw rod pump inlet to screw rod bushing it is outermost away from
From 2.4~2.6 times for driving screw rod radius.
A kind of method of chevron shaped become a mandarin double suction twin-screw water pump smooth-going current and prevention vibration, it is characterized in that：Including double
Screw pump, the Quimby pump includes screw rod pump inlet, screw rod, screw rod pump discharge, screw rod bushing, the screw rod bushing of screw rod bushing
Most external includes driven screw, driving screw rod towards screw rod pump inlet, the screw rod；The screw rod pump inlet of the Quimby pump is set
There is chevron shaped flow distribution plate, the chevron shaped flow distribution plate is made up of left circular arc type flow distribution plate, right circular arc type flow distribution plate, left circular arc type point
Stream plate face is fixedly connected to one end of screw rod pump inlet with right circular arc type flow distribution plate towards one end of screw rod pump inlet, and left circular arc
Type flow distribution plate, right circular arc type flow distribution plate fixed connection place and screw rod pump inlet, the import and export axis coaxle of screw rod pump discharge, Zuo Yuan
Camber flow distribution plate, right circular arc type flow distribution plate are arranged along axisymmetrical is imported and exported；
When current flow through chevron shaped flow distribution plate by screw pump import, due to left circular arc type flow distribution plate on chevron shaped flow distribution plate,
The effect of right circular arc type flow distribution plate, current are separated along left circular arc type flow distribution plate, right circular arc type flow distribution plate to both sides to spread so that disconnected
Surface current speed redistribution, so as to reduce or eliminate vortex rope and backflow of original current because of flow velocity inequality generation, reaches smooth-going water
The effect of stream, the shunting action through chevron shaped flow distribution plate, the fluidised form that becomes a mandarin tends to be uniform, and chevron shaped flow distribution plate is formed for current
Separation, stop so that Quimby pump is because screw rod bushing by excessive carrys out flow or to shorten flowing the uneven impact brought
With the distance between screw rod and occur friction and vibrated with the pump housing, it is ensured that Quimby pump is safely and smoothly run.
Left circular arc type flow distribution plate, the arc angle of right circular arc type flow distribution plate are 80 °~90 ° on the chevron shaped flow distribution plate,
Cylindrical arc angle is 60 °~70 °, and inner arc radius is 1.7~1.8 times of driving screw rod radius, and outer arc radius is
2.0~2.1 times of driving screw rod radius.
Left circular arc type flow distribution plate on the chevron shaped flow distribution plate, the Inner arc terminal A of right circular arc type flow distribution plate are to exporting axle
The distance of line is 0.1~0.15 times of driving screw rod radius.
There are 3 ends on the chevron shaped flow distribution plate being made up of left circular arc type flow distribution plate, right circular arc type flow distribution plate, and often
Individual end is circular shape end, and the arc radius of each end is 0.1~0.2 times of driving screw rod radius.
The chevron shaped flow distribution plate towards the chevron shaped end summit B at screw rod pump inlet to screw rod bushing it is outermost away from
From 2.4~2.6 times for driving screw rod radius.
Reasonable in the utility model structure, simple and science, the chevron shaped flow distribution plate is arranged at Quimby pump import
Side, is made up of two circular arc type flow distribution plates for importing and exporting axis on Quimby pump.The inner circle arc angle of the chevron shaped flow distribution plate
It is 80 °~90 ° to spend α, and external arc angle beta is 60 °~70 °, and inner arc radius R1 is（1.7~1.8）R,（R is driving screw rod half
Footpath, and driving screw rod radius is identical with driven screw radius, similarly hereinafter）, outer arc radius R2 is（2.0~2.1）R.Inner arc end
Point A apart from X1 is to axis is imported and exported（0.1~0.15）R.Three ends of the chevron shaped flow distribution plate are circular shape, end
Portion arc radius R3 is（0.1~0.2）R.The chevron shaped flow distribution plate is served as a contrast towards the chevron shaped end summit B at import to screw rod
Set is outermost to be apart from Y1（2.4~2.6）R.
Reasonable in the utility model structure, simple and science, is to be based on fluid mechanics principle, space geometry theory,
By setting chevron shaped flow distribution plate in double-suction double screw pump inlet side, become a mandarin to distribute, make Quimby pump that there is good become a mandarin
Condition, and eliminate the unit vibration that current impact and produced to screw rod bushing.The chevron shaped flow distribution plate is by left and right two
Coordinating for Symmetrical Circular Arc type flow distribution plate carrys out separated flow, when current flow through flow distribution plate by inlet side, due to two flow distribution plates
Effect, current direction both sides separation diffusion so that cross-sectional flow is redistributed, so as to reduce or eliminate original because flow velocity is uneven
The vortex rope of generation and backflow, reach the effect of smooth-going current.By the shunting action of chevron shaped flow distribution plate, the fluidised form that becomes a mandarin tends to be equal
It is even.Simultaneously because chevron shaped flow distribution plate has separation, barrier effect for current so that Quimby pump is not because screw rod bushing is excessive
Come flow or come flow the uneven impact brought and shorten with the distance between screw rod and occur friction and vibrated with the pump housing, it is ensured that
Quimby pump is safely and smoothly run, and extends the service life of pump.
Market implementation possibility and economic benefit forecast are analyzed：Because Quimby pump has, pumped (conveying) medium is steady, pressure
Pulsation it is small, have low certain suction capacity, noise, efficiency high, long lifespan, reliable operation and it is easy to maintenance the features such as, will be more next
Various occasions are more widely applied to, and raising of the even running of good inflow condition and screw pump to the efficiency of pump has
Material impact, therefore this patent can apply and implement, and for the improvement of Quimby pump inflow condition, prevent pump housing vibration from having significantly
Effect.This will produce larger economic value and social benefit.
Brief description of the drawings
Fig. 1 is the utility model Quimby pump structural representation.
Fig. 2 is the chevron shaped flow distribution plate symbol logo figure of the utility model.
In Fig. 1：1 screw rod pump inlet, 2 chevron shaped flow distribution plates, 3 driven screws, 4 driving screw rods, 5 screw rod pump discharges, 6 screw rods
Axis is imported and exported in bushing most external, 7 screw rod bushings, 8 chevron shaped end summit B, 9 Inner arc terminal As, 10.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model patent is further described：
The chevron shaped flow distribution plate 2 is arranged at Quimby pump inlet side（Screw rod pump inlet 1）, chevron shaped flow distribution plate 2 is by two
The individual Quimby pump that is symmetrical with imports and exports the left circular arc type flow distribution plate of axis 10, right circular arc type flow distribution plate composition.Described chevron shaped point
The Inner arc angle [alpha] for flowing plate is 80 °~90 °, and external arc angle beta is 60 °~70 °, and inner arc radius R1 is（1.7~1.8）R（R
For driving screw rod radius, and driving screw rod radius is identical with driven screw radius, similarly hereinafter）, outer arc radius R2 for (2.0~
2.1)R.Inner arc terminal A 9 is (0.1~0.15) R apart from X1 to import and export axis 10.The three of the chevron shaped flow distribution plate
Individual end is circular shape, and end arc radius R3 is（0.1~0.2）R.Chevron shaped flow distribution plate is towards the chevron shaped end at import
Portion summit B8 is apart from Y1 to screw rod bushing most external 6（2.4~2.6）R.
Specifically it is refined as：The chevron shaped double suction twin-screw water pump that becomes a mandarin, including Quimby pump, the Quimby pump include screw rod
Pump inlet 1, screw rod, screw rod pump discharge 5, screw rod bushing 7, the screw rod bushing most external 6 of screw rod bushing 7 towards screw rod pump inlet 1,
The screw rod includes driven screw 3, driving screw rod 4；Chevron shaped flow distribution plate 2 is provided with the screw rod pump inlet 1 of Quimby pump, it is described
Chevron shaped flow distribution plate 2 is made up of left circular arc type flow distribution plate, right circular arc type flow distribution plate, and left circular arc type flow distribution plate is towards screw rod pump inlet
1 one end is fixedly connected with right circular arc type flow distribution plate towards one end of screw rod pump inlet 1, and left circular arc type flow distribution plate, right circular arc
Type flow distribution plate fixed connection place and the import and export axis 10 of screw rod pump inlet 1, screw rod pump discharge 5 are coaxial, left circular arc type flow distribution plate,
Right circular arc type flow distribution plate is arranged symmetrically along axis 10 is imported and exported；
When current flow through chevron shaped flow distribution plate 2 by screw rod pump inlet 1, due to left circular arc type shunting on chevron shaped flow distribution plate 2
The effect of plate, right circular arc type flow distribution plate, current are separated along left circular arc type flow distribution plate, right circular arc type flow distribution plate to both sides to spread, and makes
Cross-sectional flow redistribution is obtained, so as to reduce or eliminate vortex rope and backflow of original current because of flow velocity inequality generation, is reached flat
The effect flowed downstream, the shunting action through chevron shaped flow distribution plate 2, the fluidised form that becomes a mandarin tends to be uniform, and chevron shaped flow distribution plate 2 is for water
Manifold composition from, stop so that Quimby pump is not because screw rod bushing by excessive carrys out flow or to flow the uneven impact brought
And shorten with the distance between screw rod and occur friction and vibrated with the pump housing, it is ensured that Quimby pump is safely and smoothly run.
Claims (5)
1. a kind of chevron shaped double suction twin-screw water pump that becomes a mandarin, including Quimby pump, the Quimby pump include screw rod pump inlet
（1）, screw rod, screw rod pump discharge（5）, screw rod bushing（7）, screw rod bushing（7）Screw rod bushing most external（6）Enter towards screw pump
Mouthful（1）, the screw rod include driven screw（3）, driving screw rod（4）, driven screw（3）With driving screw rod（4）Radius is identical；Its
It is characterized in：The screw rod pump inlet of the Quimby pump（1）Provided with chevron shaped flow distribution plate（2）, the chevron shaped flow distribution plate（2）By a left side
Circular arc type flow distribution plate, right circular arc type flow distribution plate composition, left circular arc type flow distribution plate is towards screw rod pump inlet（1）One end and right circular arc
Type flow distribution plate is towards screw rod pump inlet（1）One end be fixedly connected, and left circular arc type flow distribution plate, right circular arc type flow distribution plate fix connect
Connect place and screw rod pump inlet（1）, screw rod pump discharge（5）Import and export axis（10）Coaxially, left circular arc type flow distribution plate, right circular arc type
Import and export axis in flow distribution plate edge（10）It is arranged symmetrically.
2. the chevron shaped double suction twin-screw water pump that becomes a mandarin of one kind according to claim 1, it is characterized in that：The chevron shaped shunting
Plate（2）Upper left circular arc type flow distribution plate, the arc angle of right circular arc type flow distribution plate are 80 °~90 °, cylindrical arc angle is 60 °~
70 °, inner arc radius is driving screw rod（4）1.7~1.8 times of radius, outer arc radius is driving screw rod（4）Radius
2.0~2.1 times.
3. the chevron shaped double suction twin-screw water pump that becomes a mandarin of one kind according to claim 1, it is characterized in that：The chevron shaped shunting
Plate（2）Upper left circular arc type flow distribution plate, the Inner arc terminal A of right circular arc type flow distribution plate（9）To outlet axes（10）Distance be
Driving screw rod（4）0.1~0.15 times of radius.
4. the chevron shaped double suction twin-screw water pump that becomes a mandarin of one kind according to claim 1, it is characterized in that：It is described by left circular arc type
The chevron shaped flow distribution plate of flow distribution plate, right circular arc type flow distribution plate composition（2）On have 3 ends, and each end is circular shape
End, the arc radius of each end is driving screw rod（4）0.1~0.2 times of radius.
5. the chevron shaped double suction twin-screw water pump that becomes a mandarin of one kind according to claim 1, it is characterized in that：The chevron shaped shunting
Plate（2）Towards screw rod pump inlet（1）The chevron shaped end summit B at place（8）To screw rod bushing most external（6）Distance be active spiral shell
Bar（4）2.4~2.6 times of radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453101.5U CN206458599U (en) | 2016-12-28 | 2016-12-28 | A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621453101.5U CN206458599U (en) | 2016-12-28 | 2016-12-28 | A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458599U true CN206458599U (en) | 2017-09-01 |
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ID=59697209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621453101.5U Expired - Fee Related CN206458599U (en) | 2016-12-28 | 2016-12-28 | A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762625A (en) * | 2016-12-28 | 2017-05-31 | 扬州大学 | A kind of chevron shaped double suction twin-screw water pump and its smooth-going current and method of prevention vibration of becoming a mandarin |
-
2016
- 2016-12-28 CN CN201621453101.5U patent/CN206458599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762625A (en) * | 2016-12-28 | 2017-05-31 | 扬州大学 | A kind of chevron shaped double suction twin-screw water pump and its smooth-going current and method of prevention vibration of becoming a mandarin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 Termination date: 20191228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |