CN104132006A - Ejector for jet pump - Google Patents
Ejector for jet pump Download PDFInfo
- Publication number
- CN104132006A CN104132006A CN201410385227.2A CN201410385227A CN104132006A CN 104132006 A CN104132006 A CN 104132006A CN 201410385227 A CN201410385227 A CN 201410385227A CN 104132006 A CN104132006 A CN 104132006A
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- China
- Prior art keywords
- tube
- pipe
- contracted
- ejector
- segment
- 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.)
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- Jet Pumps And Other Pumps (AREA)
Abstract
The invention relates to an ejector for a jet pump, and belongs to the technical field of submerged pumps. The ejector comprises a straight pipe, a contracted pipe, a throat pipe and a diffusing pipe which are sequentially connected. A nozzle is inserted in the straight pipe and stretches to the contracted pipe, and a communication pipe is arranged on the straight pipe. The nozzle comprises an inlet, a contracted segment and an expansion segment which are connected sequentially. The caliber of the position, away from the contracted segment, of the expansion segment is larger than the caliber of the position, close to the contracted segment, of the expansion segment. The ejector can increase the fluid flow velocity in the jet pump, and working efficiency of the jet jump can be further improved.
Description
Technical field
The present invention relates to a kind of sparger for Jet injector, belong to jet pump technology field.
Background technique
The vacuum that Jet injector utilizes fluid to come transferring energy and quality obtains device, employing has the current of certain pressure to spray by injection stream, because water-spraying flow velocity is high especially, changes pressure energy into speed energy, make air-breathing district pressure decreased produce vacuum, under atmospheric effect, material is taken away.Jet injector has the advantages such as processing and fabricating is simple, security of operation, easy to maintenance, effect is better, can adapt to different working environments and requirement, can directly aspirate high concentration corrosive gas, flammable explosive gas, various liquid, scattered seed shape medium, and can be applied to environmental protection and absorb tail gas, dust and reduce the aspects such as environmental pollution improves working conditions, there are mechanical type, the incomparable advantage of Nash hytor.
Sparger is one of critical component in Jet injector, is mainly made up of nozzle, trunnion, diffusing tube etc.Existing sparger is venturi tube structure conventionally, is working fluid from the coarse to fine, to accelerate working fluid flow velocity, makes working fluid form " vacuum " district at the rear side of venturi outlet.The object of the invention is further to increase the flow velocity of working fluid, thereby make the negative pressure of this region of no pressure lower, increase work efficiency.
Summary of the invention
The present invention wants technical solution problem to be: a kind of sparger that can improve working fluid flow velocity in Jet injector is provided, and this sparger can improve the working efficiency of Jet injector.
In order to solve the problems of the technologies described above, the technological scheme that the present invention proposes is: a kind of sparger for Jet injector, comprise the straight tube, the draw, trunnion and the diffusing tube that connect successively, be provided with the nozzle that inserts this straight tube and extend to the draw in described straight tube, described straight tube is provided with connecting tube; Described nozzle comprises the entrance, contraction section and the extending section that connect successively, and described extending section is larger from contraction section bore nearby from contraction section bore at a distance.
According to the continuity theorem of fluid, when fluid successively and stably flow through a thickness not wait pipeline time, because the fluid of any part in pipeline all can not interrupt or push, therefore at one time in, flow to the quality of fluid of arbitrary tangent plane and the fluid mass flowing out from another tangent plane and equate.Separately, according to Bernoulli's therem, when fluid flows in a pipeline, the local pressure that flow velocity is large is little, and the local pressure that flow velocity is little is large.In the time that surface is outstanding, stream pipe is thinner, and flow velocity is accelerated, pressure decreased.
Therefore, in the time that fluid passes through specific extending section, form whirlpool at the edge of extending section, this whirlpool makes to form low pressure area near extending section outlet, and fluid just constantly flows into towards low pressure area, can obtain very large speedup effect.Compared with the expander of the present invention and venturi tube structure, the flow velocity of fluid is faster, " vacuum " district that extending section outlet rear side forms obtains lower negative pressure, can make fluid output to faster in the diffusing tube of sparger, thereby improved the working efficiency of Jet injector under the pressure of atmosphere.
As preferred version, the hollow circular-tube that described extending section is taper.Further, the tapering of described hollow circular-tube is 60-80 degree.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Embodiment
The sparger for Jet injector of the present embodiment as shown in Figure 1, comprises the straight tube 1, the draw 2, trunnion 3 and the diffusing tube 4 that connect successively, is provided with the nozzle that inserts this straight tube 1 and extend to the draw 2 in straight tube 1, and straight tube 1 is provided with the connecting tube 5 being connected with fluid source; Nozzle comprises the entrance 6, contraction section 7 and the extending section 8 that connect successively, and extending section 8 is larger from contraction section 7 bore nearby from contraction section 7 bore at a distance.
The hollow circular-tube that in the present embodiment, extending section 8 is taper, the tapering of hollow circular-tube is 70 degree.Certainly the tapering of hollow circular-tube can be selected the arbitrary value between 60-80 degree.
The present invention is not limited to the concrete technological scheme described in above-described embodiment, and in addition to the implementation, the present invention can also have other mode of executions.All employings are equal to replaces the technological scheme forming, and is the protection domain of requirement of the present invention.
Claims (3)
1. for a sparger for Jet injector, comprise the straight tube, the draw, trunnion and the diffusing tube that connect successively, be provided with the nozzle that inserts this straight tube and extend to the draw in described straight tube, described straight tube is provided with connecting tube; It is characterized in that: described nozzle comprises the entrance, contraction section and the extending section that connect successively, described extending section is larger from contraction section bore nearby from contraction section bore at a distance.
2. the sparger for Jet injector according to claim 1, is characterized in that: the hollow circular-tube that described extending section is taper.
3. the sparger for Jet injector according to claim 2, is characterized in that: the tapering of described hollow circular-tube is 60-80 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385227.2A CN104132006A (en) | 2014-08-07 | 2014-08-07 | Ejector for jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385227.2A CN104132006A (en) | 2014-08-07 | 2014-08-07 | Ejector for jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104132006A true CN104132006A (en) | 2014-11-05 |
Family
ID=51804808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385227.2A Pending CN104132006A (en) | 2014-08-07 | 2014-08-07 | Ejector for jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104132006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401741A (en) * | 2014-11-11 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Spray nozzle of material seal pump of slag skimming loading system of metallurgy industry |
| CN105966921A (en) * | 2016-07-20 | 2016-09-28 | 苏州中材建设有限公司 | Material issuing device for powdered solid and gas conveying |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338132A (en) * | 2011-10-13 | 2012-02-01 | 北京雪迪龙科技股份有限公司 | Jet pump and gas analyzer employing same |
| JP2012097697A (en) * | 2010-11-04 | 2012-05-24 | Miki Sugino | Vacuum source unit |
| CN103047199A (en) * | 2012-12-06 | 2013-04-17 | 安徽师范大学 | Air jet pump |
| CN103133299A (en) * | 2011-12-02 | 2013-06-05 | 上海日立电器有限公司 | Jet pump differential pressure device for horizontal type compressor |
| CN203189360U (en) * | 2013-04-23 | 2013-09-11 | 武汉大学 | Annular jet pump achieving adjustable overflowing area of nozzle |
-
2014
- 2014-08-07 CN CN201410385227.2A patent/CN104132006A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012097697A (en) * | 2010-11-04 | 2012-05-24 | Miki Sugino | Vacuum source unit |
| CN102338132A (en) * | 2011-10-13 | 2012-02-01 | 北京雪迪龙科技股份有限公司 | Jet pump and gas analyzer employing same |
| CN103133299A (en) * | 2011-12-02 | 2013-06-05 | 上海日立电器有限公司 | Jet pump differential pressure device for horizontal type compressor |
| CN103047199A (en) * | 2012-12-06 | 2013-04-17 | 安徽师范大学 | Air jet pump |
| CN203189360U (en) * | 2013-04-23 | 2013-09-11 | 武汉大学 | Annular jet pump achieving adjustable overflowing area of nozzle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401741A (en) * | 2014-11-11 | 2015-03-11 | 宁夏嘉翔自控技术有限公司 | Spray nozzle of material seal pump of slag skimming loading system of metallurgy industry |
| CN105966921A (en) * | 2016-07-20 | 2016-09-28 | 苏州中材建设有限公司 | Material issuing device for powdered solid and gas conveying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |
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| RJ01 | Rejection of invention patent application after publication |