CN109654070A - A kind of jet pump - Google Patents
A kind of jet pump Download PDFInfo
- Publication number
- CN109654070A CN109654070A CN201710949355.9A CN201710949355A CN109654070A CN 109654070 A CN109654070 A CN 109654070A CN 201710949355 A CN201710949355 A CN 201710949355A CN 109654070 A CN109654070 A CN 109654070A
- Authority
- CN
- China
- Prior art keywords
- jet pump
- chamber
- jet
- self
- diffuser
- 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
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
Abstract
A kind of jet pump, the jet pump are combined by framework part and pump body portion, are mainly made of nozzle ring, suction chamber, self-oscillation chamber, diffuser etc.；The jet pump pump body portion is made of nozzle ring, inlet nozzle, suction chamber, self-oscillation chamber, diffuser；The jet pump includes sequentially connected inlet nozzle, nozzle ring, self-oscillation chamber, diffuser, discharge pipe；The jet pump self-oscillation chamber is connected to nozzle ring and diffuser；The jet pump inlet nozzle is discharged after completing liquid assimilating by discharge pipe；The jet pump self-oscillation chamber completes the conversion by constant jet stream to oscillating jet.The present invention have many advantages, such as it is structurally reasonable, using reliable, maintenance is convenient and high-efficient, small in size.
Description
Technical field
The present invention relates to pump housing technical field more particularly to a kind of jet pumps.
Background technique
Jet pump utilizes a fluid to the vacuum acquirement device of transmitting energy and quality, using there is the water flow of certain pressure to pass through
Injection stream sprays, and is speed energy by pressure energy since injection water speed is especially high, generates suction zone pressure reduction true
Sky under atmospheric pressure takes away material.Jet pump have processing and fabricating is simple, operational safety, easy to maintenance, effect compared with
The advantages that good, is suitable for different working environment and requirement, or even can directly aspirate high concentration corrosive liquids, and can apply
In reduce environmental pollution and improve working conditions etc., there is that mechanical, water-ring vacuum pump is incomparable.
Chinese invention patent (201510807978.3 applying date 2015.11.19 of application number) discloses a kind of jet stream
Pump, including being located at first mixing chamber in left side and positioned at second mixing chamber on right side；The left side of first mixing chamber is equipped with the
One suction inlet, right side are equipped with the first trunnion, and the indoor middle position of the first mixing is equipped with opening towards right first jet；Institute
The left side for stating the second mixing chamber is equipped with the second suction inlet, right side is equipped with aux. venturi, and the indoor middle position of the second mixing
Equipped with the second nozzle being open towards the right side；First trunnion and second suction inlet are attached by a coupling tube, the coupling tube
With the big conical cavity in left end, and the taper inner cavity surface has helicla flute；The first jet is connected with feed pipe, and this second
Nozzle is connected with a connecting tube, and the other end of the connecting tube is connected on the side wall of the feed pipe；First suction inlet is connected with
Suction tube；Diffusing opening is connected on the right side of the aux. venturi；First mixing chamber is identical with the inner cavity profile of second mixing chamber.
Chinese invention patent (201410385230.4 applying date 2014.08.07 of application number) discloses a kind of jet stream
Pump, including cabinet, centrifugal pump and injector, at the top of the box body, a upper lateral part of the cabinet is equipped with for the injector installation
The water inlet of overflow pipe, the centrifugal pump is connected to cabinet, and the water outlet of the centrifugal pump is connected to injector；The injector
Including sequentially connected straight tube, the draw, trunnion and diffuser, the spray be inserted into the straight tube and extend to the draw is equipped in the straight tube
Mouth, the straight tube are equipped with communicating pipe, connect after the communicating pipe being pierced by cabinet with fluid source；The communicating pipe includes ceramic tube
With the rubber layer for being covered on ceramic tube peripheral wall, application of resin glue between the ceramic tube and rubber layer；The nozzle includes successively
Entrance, contraction section and the expansion segment of connection, bore of the expansion segment from contraction section distant place is compared with more from contraction section bore nearby
Greatly.
Summary of the invention
There is no moving component inside jet pump, structure is simple so it has, reliable operation, No leakage, and has from energy-absorbing
Power, handling ease and convenient for comprehensive utilization the advantages that.In many technical fields, entire technique can be made using jet pump technology
Process and equipment are greatly simplified, and improve its functional reliability.Especially in high temperature, high pressure, vacuum, intense radiation and the spies such as underwater
Under different operating condition, its unique superiority is more shown.However, since jet pump is by the mutual shock between liquid particle
Energy is transmitted, therefore generates a large amount of vortexs in mixed process, generates friction loss in trunnion inner wall and in diffuser
Middle generation divergence loss can all cause a large amount of hydraulic loss, therefore the efficiency of jet pump is lower, under normal circumstances jet pump
Efficiency is 25%-30%.The delivery pipe in jet pump is mostly flexible hose at present, and corrosion resistance is poor, is not suitable for severe ring
Under border.For existing equipment and the deficiency of technology, the invention reside in providing a kind of jet pump, structure is simple and convenient to operate,
High efficiency, strong applicability.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of jet pump, the jet pump are combined by framework part and pump body portion, mainly by nozzle ring, suction chamber, self-excitation
The composition such as oscillation chamber, diffuser；The jet pump pump body portion is by nozzle ring, inlet nozzle, suction chamber, self-oscillation
Chamber, diffuser composition；The jet pump includes sequentially connected inlet nozzle, nozzle ring, self-oscillation chamber, diffusion
Pipe, discharge pipe；The jet pump self-oscillation chamber is connected to nozzle ring and diffuser；The jet pump inlet nozzle
It is discharged after completing liquid assimilating by discharge pipe；The jet pump self-oscillation chamber is completed by constant jet stream to oscillating jet
Conversion.
As a preferred solution of the present invention, the jet stream of the jet pump belongs to low pressure and mass flow jet stream.
As a preferred solution of the present invention, the jet pump bubbler-type line options taper, angle of flare take 6 °.
As a preferred solution of the present invention, the nozzle ring (working fluid inflow entrance) and inlet nozzle
(by fluid inlet is drawn) diameter: D1, D2, enter the room angle of throat α, and oscillation chamber imports and exports diameter, chamber diameter, inclination angle and length
Degree: d1, d2, D, γ, L, diffuser angle of inclination beta.
As a preferred solution of the present invention, oscillation chamber's structure dimensionless group proportion: d2/d1:
1.5-2.3, L/D:0.4-0.7, D/d2:6-9, γ=60 °.
As a preferred solution of the present invention, the self-oscillation chamber is not only made instead of trunnion in structure
For the Mixed Zone of two kinds of flow velocity different jets, also the energy of jet stream is effectively modulated.
The invention has the advantages that the present invention have it is structurally reasonable, using reliable, maintenance is convenient, and high-efficient, body
The advantages that product is small.
Detailed description of the invention
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
The drawings and the specific embodiments, the present invention will be described in further detail.
Fig. 1 is the structural diagram of the invention.
1- is worked by suction inflow entrance, 2- inlet nozzle, 3- nozzle ring, 4- self-oscillation chamber, 5- diffuser, 6- in figure
Fluid inlet, 7 discharge pipes.
Specific embodiment
In Fig. 1, jet pump is combined by framework part and pump body portion, mainly by nozzle ring, suction chamber, from exciting
Swing the composition such as chamber, diffuser；The jet pump pump body portion is by nozzle ring, inlet nozzle, suction chamber, the self-excited oscillation cavity
Room, diffuser composition；The jet pump includes sequentially connected inlet nozzle, nozzle ring, self-oscillation chamber, diffusion
Pipe, discharge pipe；The jet pump self-oscillation chamber is connected to nozzle ring and diffuser；The jet pump inlet nozzle
It is discharged after completing liquid assimilating by discharge pipe；The jet pump self-oscillation chamber is completed by constant jet stream to oscillating jet
Conversion.
The composite mechanical hand working method are as follows: pressure flow body (working fluid or high-velocity fluid) is penetrated by nozzle ring
Enter, in jet blower exit due to the viscous effect of air at jet stream and this, the air of suction chamber is taken away to make the position
Pressure reduces, by suction fluid since pressure difference is inhaled into from suction chamber.Due to the turbulent diffusion in working fluid boundary layer, quilt
Inhale fluid suction chamber and working fluid occur quality and energy exchange and entrance the self-excited oscillation cavity room, working fluid with inhaled
Fluid is obtained in chamber adequately mixing and be exchanged with energy, and speed reaches unanimity.It is constant to penetrate due to special chamber structure
Stream becomes oscillating jet after the self-oscillation effect of chamber, and mixed jet stream is discharged through diffuser.Self-oscillation chamber
Modulation of the cavitation negative pressuren zone to the mixing and energy that enhance jet stream is swashed in the whirlpool that inside generates, and may make to occur in trunnion and diffusion
The cavitation managed out occurs in advance, and that improves jet pump goes out stream effect.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of jet pump, which is combined by framework part and pump body portion, mainly by nozzle ring, suction chamber, from
The composition such as Induced Oscillation chamber, diffuser；The jet pump pump body portion by nozzle ring, inlet nozzle, suction chamber, from exciting
Swing chamber, diffuser composition；The jet pump includes sequentially connected inlet nozzle, nozzle ring, self-oscillation chamber, expands
Separate tube, discharge pipe；The jet pump self-oscillation chamber is connected to nozzle ring and diffuser；The jet pump sucks spray
Mouth is discharged after completing liquid assimilating by discharge pipe；The jet pump self-oscillation chamber is completed to be penetrated by constant jet stream to oscillation
The conversion of stream.
2. jet pump according to claim 1 is penetrated it is characterized in that: the jet stream of the jet pump belongs to low pressure and mass flow
Stream.
3. jet pump according to claim 1, it is characterized in that: the jet pump bubbler-type line options taper, diffusion
Angle takes 6 °.
4. jet pump according to claim 1, it is characterized in that: the nozzle ring (working fluid inflow entrance) and suction
Enter nozzle (by fluid inlet is drawn) diameter: D1, D2, enter the room angle of throat α, oscillation chamber import and export diameter, chamber diameter, inclination angle with
And length: d1, d2, D, γ, L, diffuser angle of inclination beta.
5. jet pump according to claim 1, it is characterized in that: the dimensionless of oscillation chamber's structure
Parameters adjusting: d2/d1:1.5-2.3, L/D:0.4-0.7, D/d2:6-9, γ=60 °.
6. jet pump according to claim 1, it is characterized in that: the self-oscillation chamber is in structure instead of larynx
Pipe, serves not only as the Mixed Zone of two kinds of flow velocity different jets, also effectively modulating the energy of jet stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710949355.9A CN109654070A (en) | 2017-10-12 | 2017-10-12 | A kind of jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710949355.9A CN109654070A (en) | 2017-10-12 | 2017-10-12 | A kind of jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109654070A true CN109654070A (en) | 2019-04-19 |
Family
ID=66109770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710949355.9A Pending CN109654070A (en) | 2017-10-12 | 2017-10-12 | A kind of jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109654070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483479A (en) * | 2020-11-19 | 2021-03-12 | 华中科技大学 | Static oscillating jet injection supercharging device |
-
2017
- 2017-10-12 CN CN201710949355.9A patent/CN109654070A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483479A (en) * | 2020-11-19 | 2021-03-12 | 华中科技大学 | Static oscillating jet injection supercharging device |
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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: 20190419 |