CN206329487U - The conveyor screw of high temperature aluminium liquid delivery pump - Google Patents
The conveyor screw of high temperature aluminium liquid delivery pump Download PDFInfo
- Publication number
- CN206329487U CN206329487U CN201621256637.8U CN201621256637U CN206329487U CN 206329487 U CN206329487 U CN 206329487U CN 201621256637 U CN201621256637 U CN 201621256637U CN 206329487 U CN206329487 U CN 206329487U
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- high temperature
- delivery pump
- aluminium 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.)
- Expired - Fee Related
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- Rotary Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is related to a kind of conveyor screw of high temperature aluminium liquid delivery pump, including rotor and stator, is characterised by：The rotor with the identical and oppositely oriented screw thread of shape is formed respectively with the face of cylinder of stator, the spiral groove depth of the screw thread is 3.8mm, the effective length of the helicla flute is 300mm, the gap of the rotor and stator is 0.2mm, the O-ring being provided with U-lag, the U-lag for sealing medium and isolation high and low pressure chamber is provided with one end of stator.Advantage is：This high temperature aluminium liquid delivery pump spiral shell, which can be realized, obtain high-lift under low discharge, and operating is stable, vibration, noise are small, it is to avoid the generation that gas gulps down and cavitate, thus can convey high temperature, high pressure, it is inflammable, explosive, corrode and the medium containing particle.
Description
Technical field
The utility model belongs to positive displacement spiral shell impeller pump manufacturing technology field, more particularly to a kind of high temperature aluminium liquid delivery pump
Conveyor screw.
Background technology
At present, continuing to develop, it is necessary to defeated with numerous areas such as machinery, irrigation, chemical industry, oil, nuclear industry and space flight
Send the occasion of high temperature, medium containing graininess, Korrosionsmedium and high-lift small flow pump more and more, with gear pump, spiral shell rotor
Pump is compared (lift is identical with flow) with other displacement pumps, and this new pump will have simple in construction, low discharge, high-lift, ratio
Rotating speed is low, efficiency high, can realize the advantages of air-liquid mixes defeated.Gear pump of the prior art, spiral shell impeller pump and other displacement pumps by
In the limitation of its structure, it is impossible to meet high temperature, high pressure, inflammable, explosive, corrosion and the operating mode use requirement containing granule medium.
The content of the invention
The utility model provides a kind of spiral shell of high temperature aluminium liquid delivery pump to solve technical problem present in known technology
Revolve body.
The rotor and stator of the conveyor screw of this high temperature aluminium liquid delivery pump, can pumped (conveying) mediums by the structure design of special substance
To realize for the aluminium liquid of 700 DEG C or so high temperature and obtain high-lift under low discharge.The design of spiral flute type can prevent what gas from gulping down and cavitating
Occur, because its operation principle is set up on the basis of turbulent theory, therefore transported medium is not viscosity-limited, can be achieved liquid it is solid,
Liquid gas mixes defeated, and then has widened the use space of delivery pump.Rotor and stator are the rotary body of high-speed uniform, and operating is stable,
Vibration, noise are small, and rotor and stator are not in contact, therefore can convey the medium containing particle.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
The conveyor screw of high temperature aluminium liquid delivery pump, including rotor and stator, it is characterised in that：The cylinder of the rotor and stator
It is formed respectively with the identical and oppositely oriented screw thread of shape on face, the spiral groove depth of the screw thread is 3.8mm, the helicla flute has
Effect length is 300mm, and the gap of the rotor and stator is 0.2mm, is provided with one end of stator in U-lag, the U-lag
O-ring for sealing medium and isolation high and low pressure chamber is installed.
The utility model can also be adopted the following technical scheme that：
The helicla flute is trapezoid spiral groove.
The stator uses DSA-1.5 isostatic pressing formed graphite material systems using stator, rotor described in isostatic pressing formed graphite material
Into.
The utility model has the advantages and positive effects of：It is because the utility model uses above-mentioned technical proposal, i.e., high
When the rotor of the conveyor screw of warm aluminium liquid delivery pump is rotated by power, rotor and stator fit clearance produce strong turbulent flow and cut
Flowing is cut, turbulent shear force acts on rotor, stator screw thread, form respectively rotor, pressure stator face and suction surface.Fluid exists
Pressure and speed are obtained in the presence of rotor pressure face, makees complicated Three-dimensional Flow.Rotor pressure face surrounding fluid produces strong
Centrifugal motion, stator is entered by rotor, by stator screw thread parietal block, part kinetic energy is transformed into pressure energy.Meanwhile, in stator pressure
Under power face and rotor suction surface differential pressure action, the helicla flute of helical groove portion shunting body radial flow revolution of stator, in the rotor
Momentum and energy are obtained again.Helicla flute is as the power assembly of pumped (conveying) medium, and its groove profile, groove depth, gap and helicla flute have
Imitate the parameter designings such as length most important.Trapezoid spiral groove be conducive to liquid being strapped in groove and screw thread promotion under obtain compared with
Big pressure energy, liquid during circumferential flow, easily forms vortex in helical cavity at the screw thread back side, produces negative pressure, negative pressure height is to necessarily
Cavitation can be produced during value, therefore fluid is gradual change along rotor, stator surface circumferential flow section.To reach low discharge, soaring
Journey groove depth uses 3.8mm；The factor such as structure, assembling, rotating speed, machining accuracy in order to reduce drag losses and pump, which is set out, simultaneously examines
Consider, gap uses 0.2mm.The parameters such as dynamic viscosity, the gap of comprehensive medium, elect the effective length of helicla flute as 300mm, i.e.,
The effective length of helicla flute is increased, then medium has longer pressurization in helical cavity so that liquid stagnation pressure is raised, and lift increases
Plus.This high temperature aluminium liquid delivery pump spiral shell, which can be realized, obtain high-lift under low discharge, and operating is stable, vibration, noise are small, it is to avoid gas
The generation for gulping down and cavitating, therefore high temperature, high pressure, inflammable, explosive, corrosion and the medium containing particle can be conveyed.
Brief description of the drawings
Fig. 1 is topology view of the present utility model；
Fig. 2 is the utility model rotor and stator partial assembled structural representation.
In figure：1st, rotor；2nd, stator；3rd, O-ring；4th, key.
Embodiment
For the content of the invention of the present utility model, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows：
Refer to Fig. 1 and Fig. 2, the conveyor screw of high temperature aluminium liquid delivery pump, including rotor 1 and stator 2, the rotor and stator
The face of cylinder on be formed respectively with the identical and oppositely oriented screw thread of shape, the helicla flute is trapezoid spiral groove.The screw thread
Spiral groove depth is 3.8mm, and the effective length of the helicla flute is 300mm, and the gap of the rotor and stator is 0.2mm, fixed
The O-ring 3 being provided with U-lag, the U-lag for sealing medium and isolation high and low pressure chamber is provided with one end of son, it is described
Key 4 is housed on rotor.
When rotor 1 rotates against its own hand of spiral, on the one hand screw thread promotes liquid to liquid force in helicla flute
Overcome friction to circle, on the other hand also promote liquid axial advancement.The screw thread of stator 2 also produces phase to liquid in itself groove
Same effect, the screw thread of rotor 1 and the screw thread of stator 2 just form " pumping " pressure to total axial thrust of liquid, meanwhile, high pressure effluent
Body leaks outside under differential pressure action along rotor 1, the gap of stator 2, forms pressure difference stream (leakage stream), when pump flow is more than pressure difference stream
When, just complete to deliver to medium into the process of high pressure chest by low pressure chamber.Helicla flute is as the power assembly of pumped (conveying) medium, and its shape has
It is a variety of, for the generation for preventing gas from gulping down and cavitating, it should be taken into account that by the viscosity and fluidised form of pumped (conveying) medium to spiral groove shape
It is required that.From the cross sectional shape of helicla flute, ladder type is conducive to liquid being strapped in helicla flute and obtained under screw thread promotion
Larger pressure energy.Liquid during circumferential flow, easily forms vortex in helical cavity at the screw thread back side, produces negative pressure, and negative pressure is high to one
Cavitation can be produced during definite value, therefore fluid is gradual change along rotor, stator surface circumferential flow section, using ladder type helicla flute,
Realize low discharge, high-lift pump.
In the present embodiment, the stator, rotor are made of DSA-1.5 isostatic pressing formed graphite materials, and then can convey Jie
Matter is the aluminium liquid of 700 DEG C or so high temperature.
Operation principle of the present utility model is：
The rotor of the conveyor screw of high temperature aluminium liquid delivery pump is got on the bus with stator has shape identical with physical dimension but rotation direction
Opposite screw thread.When the shaft is rotated, fluid flows through the screw thread on rotor and stator, forms vortex, the side that direction is flowed out with liquid
To opposite.Energy is transmitted to the liquid around stator by rotor by streaming the momentum-exchange result of rotor liquid, rotor and stator with
The result of the mutual power effect of liquid, frictional force is produced on the nominal interface by rotor and stator gap.Produced in liquid
Frictional force just generate pressure in rotor and stator surface and frictional force forms axial back-pressure, rotor and stator are to the total of liquid
Axial thrust is formed the pumping pressure of conveyor screw.
Embodiment described in the utility model accompanying drawing is exemplary, is only used for explaining the utility model, and can not be managed
Solve as to limitation of the present utility model.
Claims (3)
1. a kind of conveyor screw of high temperature aluminium liquid delivery pump, including rotor and stator, it is characterised in that：The circle of the rotor and stator
The identical and oppositely oriented screw thread of shape is formed respectively with cylinder, the spiral groove depth of the screw thread is 3.8mm, the helicla flute
Effective length is 300mm, and the gap of the rotor and stator is 0.2mm, and U-lag, the U-lag are provided with one end of stator
O-ring for sealing medium and isolation high and low pressure chamber is inside installed.
2. the conveyor screw of high temperature aluminium liquid delivery pump according to claim 1, it is characterised in that：The helicla flute is trapezoidal spiral shell
Spin slot.
3. the conveyor screw of high temperature aluminium liquid delivery pump according to claim 1, it is characterised in that：The stator, rotor are adopted
It is made of DSA-1.5 isostatic pressing formed graphite materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621256637.8U CN206329487U (en) | 2016-11-18 | 2016-11-18 | The conveyor screw of high temperature aluminium liquid delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621256637.8U CN206329487U (en) | 2016-11-18 | 2016-11-18 | The conveyor screw of high temperature aluminium liquid delivery pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329487U true CN206329487U (en) | 2017-07-14 |
Family
ID=59289508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621256637.8U Expired - Fee Related CN206329487U (en) | 2016-11-18 | 2016-11-18 | The conveyor screw of high temperature aluminium liquid delivery pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056508A (en) * | 2019-06-05 | 2019-07-26 | 大连海事大学 | A kind of pump for the conveying of high temperature molten aluminum |
-
2016
- 2016-11-18 CN CN201621256637.8U patent/CN206329487U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056508A (en) * | 2019-06-05 | 2019-07-26 | 大连海事大学 | A kind of pump for the conveying of high temperature molten aluminum |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20171118 |