CN106762625A - 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 - Google Patents
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 Download PDFInfo
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- CN106762625A CN106762625A CN201611233640.2A CN201611233640A CN106762625A CN 106762625 A CN106762625 A CN 106762625A CN 201611233640 A CN201611233640 A CN 201611233640A CN 106762625 A CN106762625 A CN 106762625A
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- screw rod
- distribution plate
- flow distribution
- circular arc
- arc type
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
- F04C2270/125—Controlled or regulated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/14—Pulsations
- F04C2270/145—Controlled or regulated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/18—Pressure
- F04C2270/185—Controlled or regulated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to 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, including Quimby pump, Quimby pump includes screw rod pump inlet, screw rod, screw rod pump discharge, screw rod bushing, the screw rod bushing most external of screw rod bushing includes driven screw, driving screw rod towards screw rod pump inlet, the 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 with right circular arc type flow distribution plate towards one end of screw rod pump inlet 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 structure of the present invention, simple and science, it is ensured that Quimby pump safely and smoothly runs, and extends the service life of pump.
Description
Technical field
The present invention relates to a kind of new screw water pump, specifically a kind of chevron shaped become a mandarin double suction twin-screw water pump and its smooth-going
Current and the method for preventing vibration, belong to 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 it 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.As the continuation of screw rod rotates,
The liquid of suction collects from two ends along axis 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 the very broad various media of transport viscosity scope 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. make velocity flow profile uneven, destroy intrinsic flow field so that enter screw rod
Water (flow) direction shift, this not only results in pump efficiency decline, can also deteriorate operating condition, induces pump cavitation and water
Force vibration.
2) double suction import produces directly 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, cause the pump housing to vibrate, endanger water pump operation safety, shorten the service life of pump.
Granted patent CN103388580B, discloses a kind of Split mechanical seal and Quimby pump, and the invention passes through
Housing and screw rod pedestal to Quimby pump cut open into the effect that upper and lower two parts improve split surface sealing.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.
The content of the invention
The purpose of the present invention becomes a mandarin not good and vibration the problem of fluidised form aiming at current double-suction double screw pump, proposes a kind of
Chevron shaped double suction twin-screw water pump and its smooth-going current and the method for prevention vibration of becoming a mandarin.
What the purpose of patent of the present invention was realized in：A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin, including twin-screw
Pump, the Quimby pump includes screw rod pump inlet, screw rod, screw rod pump discharge, screw rod bushing, the screw rod bushing outermost of screw rod bushing
Portion includes driven screw, driving screw rod towards screw rod pump inlet, the screw rod, and driven screw is identical with driving screw rod radius；Its
It is characterized in：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 point
Stream plate, right circular arc type flow distribution plate composition, left circular arc type flow distribution plate shunt plate face towards one end of screw rod pump inlet with right circular arc type
It 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 screw pump
Import, 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 along import and export axisymmetrical
Arrangement.
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 are 1.7~1.8 times of driving screw rod radius, and outer arc radius are
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 are 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 sets
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 with right circular arc type flow distribution plate to one end of screw rod pump inlet 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, right circle on chevron shaped flow distribution plate
The effect of camber flow distribution plate, current are separated to both sides along left circular arc type flow distribution plate, right circular arc type flow distribution plate and spread so that section stream
Speed redistribution, so as to reduce or eliminate original current because of the uneven vortex rope for producing of flow velocity and backflow, reaches smooth-going current
Effect, through the shunting action of chevron shaped flow distribution plate, the fluidised form that becomes a mandarin tends to uniform, and chevron shaped flow distribution plate is formed for current and divided
From, stop so that Quimby pump not because screw rod bushing by it is excessive come flow or come shorten flowing the uneven impact for bringing with
The distance between screw rod and occur friction with the pump housing vibration, it is ensured that Quimby pump safely and smoothly runs.
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 are 1.7~1.8 times of driving screw rod radius, and outer arc radius are
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 are 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 structure of the present invention, simple and science, the chevron shaped flow distribution plate is arranged at Quimby pump inlet side, by
Two circular arc type flow distribution plate compositions that axis is imported and exported on Quimby pump.The Inner arc angle [alpha] of the chevron shaped flow distribution plate is
80 °~90 °, external arc angle beta is 60 °~70 °, and inner arc radius R1 is（1.7~1.8）R,（R is driving screw rod radius, 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 terminal A is arrived
Importing and exporting axis apart from X1 is（0.1~0.15）R.Three ends of the chevron shaped flow distribution plate are circular shape, end circle
Arc radius R3 is（0.1~0.2）R.The chevron shaped flow distribution plate towards the chevron shaped end summit B at import to screw rod bushing most
Outside is apart from Y1（2.4~2.6）R.
Reasonable in structure of the present invention, simple and science, is, based on fluid mechanics principle, space geometry theory, to pass through
Chevron shaped flow distribution plate is set in double-suction double screw pump inlet side to be become a mandarin to distribute, make Quimby pump that there is good inflow condition,
And eliminate the unit vibration that current impact and produce to screw rod bushing.The chevron shaped flow distribution plate is by the symmetrical circle in left and right two
Coordinating for camber flow distribution plate carrys out separated flow, when current flow through flow distribution plate by inlet side, due to two effects of flow distribution plate,
Current direction both sides separate diffusion so that cross-sectional flow is redistributed, so as to reduce or eliminate original produce because flow velocity is uneven
Vortex rope 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 uniform.Together
When have separation, barrier effect for current due to chevron shaped flow distribution plate so that Quimby pump is not because screw rod bushing is come by excessive
Flow or come flow the uneven impact for bringing and shorten with the distance between screw rod and there is friction and vibrated with the pump housing, it is ensured that it is double
Screw pump safely and smoothly runs, 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, thus this patent can apply and implement, for the improvement of Quimby pump inflow condition, prevent the pump housing vibrate have significantly
Effect.This will produce larger economic worth and social benefit.
Brief description of the drawings
Fig. 1 is twin-screw pump structural representation.
Fig. 2 is the present inventor's font flow distribution plate symbol logo figure.
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.
Specific embodiment
Below in conjunction with accompanying drawing and embodiment, patent of the present invention 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 right by two
The left circular arc type flow distribution plate in Quimby pump import and export axis 10, right circular arc type flow distribution plate is claimed to constitute.The chevron shaped flow distribution plate
Inner arc angle [alpha] be 80 °~90 °, external arc angle beta is 60 °~70 °, and inner arc radius R1 is（1.7~1.8）R（Based on R
Dynamic screw rod radius, 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 terminal A 9 is (0.1~0.15) R apart from X1 to import and export axis 10.Three ends of the chevron shaped flow distribution plate
It is circular shape, end arc radius R3 is（0.1~0.2）R.Chevron shaped flow distribution plate is towards the chevron shaped end summit at import
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 is coaxial with the import and export axis 10 of screw rod pump inlet 1, screw rod pump discharge 5, 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 flow distribution plate, the right side on chevron shaped flow distribution plate 2
The effect of circular arc type flow distribution plate, current are separated to both sides along left circular arc type flow distribution plate, right circular arc type flow distribution plate and spread so that section
Flow velocity is redistributed, so as to reduce or eliminate original current because of the uneven vortex rope for producing of flow velocity and backflow, reaches smooth-going current
Effect, through the shunting action of chevron shaped flow distribution plate 2, the fluidised form that becomes a mandarin tends to uniform, and chevron shaped flow distribution plate 2 is formed for current
Separate, stop so that Quimby pump is because screw rod bushing carrys out flow or to shorten flowing the uneven impact for bringing by excessive
With the distance between screw rod and there is friction and vibrated with the pump housing, it is ensured that Quimby pump safely and smoothly runs.
Claims (10)
1. a kind of chevron shaped double suction twin-screw water pump that becomes a mandarin, including Quimby pump, the Quimby pump includes 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）It is 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
Flow distribution plate is along import and export axis（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, right circular arc type flow distribution plate arc angle be 80 °~90 °, cylindrical arc angle be 60 °~
70 °, inner arc radius are driving screw rod（4）1.7~1.8 times of radius, outer arc radius are 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 are 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.
6. the method that a kind of chevron shaped become a mandarin double suction twin-screw water pump smooth-going current and prevention are vibrated, it is characterized in that：Including double spiral shells
Bar pump, the Quimby pump includes 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）Towards screw rod pump inlet（1）, the screw rod include driven screw（3）, driving screw rod（4）；It is described
The screw rod pump inlet of Quimby pump（1）It is provided with chevron shaped flow distribution plate（2）, the chevron shaped flow distribution plate（2）Shunted by left circular arc type
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 shunting plate face
To 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 fixed connection 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 flow distribution plate edge are entered
Outlet axes（10）It is arranged symmetrically；
Current are by screw rod pump inlet（1）Flow through chevron shaped flow distribution plate（2）When, due to chevron shaped flow distribution plate（2）Upper left circular arc type point
Stream plate, the effect of right circular arc type flow distribution plate, current are separated to both sides along left circular arc type flow distribution plate, right circular arc type flow distribution plate and spread,
So that cross-sectional flow is redistributed, so as to reduce or eliminate original current because of the uneven vortex rope for producing of flow velocity and backflow, reach
The effect of current is smoothed out, through chevron shaped flow distribution plate（2）Shunting action, the fluidised form that becomes a mandarin tends to uniform, and chevron shaped flow distribution plate（2）
Formed for current and separate, stop so that Quimby pump is not because screw rod bushing is carried out flow or brought to flow inequality by excessive
Impact and shorten with the distance between screw rod and there is friction and vibrated with the pump housing, it is ensured that Quimby pump is safely and smoothly transported
OK.
7. the side that a kind of chevron shaped become a mandarin double suction twin-screw water pump smooth-going current and prevention according to claim 6 are vibrated
Method, it is characterized in that：The chevron shaped flow distribution 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 °, and inner arc radius are driving screw rod（4）1.7~1.8 times of radius, external arc
Radius is driving screw rod（4）2.0~2.1 times of radius.
8. the side that a kind of chevron shaped become a mandarin double suction twin-screw water pump smooth-going current and prevention according to claim 6 are vibrated
Method, it is characterized in that：The chevron shaped flow distribution 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.
9. the side that a kind of chevron shaped become a mandarin double suction twin-screw water pump smooth-going current and prevention according to claim 6 are vibrated
Method, it is characterized in that：The chevron shaped flow distribution plate being made up of left circular arc type flow distribution plate, right circular arc type flow distribution plate（2）On have 3 ends
Portion, and each end is circular shape end, the arc radius of each end are driving screw rod（4）The 0.1~0.2 of radius
Times.
10. the side that a kind of chevron shaped become a mandarin double suction twin-screw water pump smooth-going current and prevention according to claim 6 are vibrated
Method, it is characterized in that：The chevron shaped flow distribution 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 driving screw rod（4）2.4~2.6 times of radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233640.2A CN106762625A (en) | 2016-12-28 | 2016-12-28 | 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611233640.2A CN106762625A (en) | 2016-12-28 | 2016-12-28 | 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762625A true CN106762625A (en) | 2017-05-31 |
Family
ID=58922915
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611233640.2A Pending CN106762625A (en) | 2016-12-28 | 2016-12-28 | 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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| JP2010038040A (en) * | 2008-08-05 | 2010-02-18 | Shimadzu Corp | Gear pump |
| JP2011179364A (en) * | 2010-02-26 | 2011-09-15 | Isuzu Motors Ltd | Gear pump |
| CN105484998A (en) * | 2015-12-28 | 2016-04-13 | 嵊州市意海电机配件厂 | Flow controllable two-screw pump |
| CN206458599U (en) * | 2016-12-28 | 2017-09-01 | 扬州大学 | A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin |
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2016
- 2016-12-28 CN CN201611233640.2A patent/CN106762625A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005537422A (en) * | 2002-08-27 | 2005-12-08 | キャリア コーポレイション | Discharge section for screw compressors with tangential flow guide cusps |
| CN200946568Y (en) * | 2006-07-20 | 2007-09-12 | 山东长志泵业有限公司 | Partition plate type multiple axle rotary piston pump |
| JP2010038040A (en) * | 2008-08-05 | 2010-02-18 | Shimadzu Corp | Gear pump |
| JP2011179364A (en) * | 2010-02-26 | 2011-09-15 | Isuzu Motors Ltd | Gear pump |
| CN105484998A (en) * | 2015-12-28 | 2016-04-13 | 嵊州市意海电机配件厂 | Flow controllable two-screw pump |
| CN206458599U (en) * | 2016-12-28 | 2017-09-01 | 扬州大学 | A kind of chevron shaped double suction twin-screw water pump that becomes a mandarin |
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Application publication date: 20170531 |
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