CN104121238A - Jet pump - Google Patents
Jet pump Download PDFInfo
- Publication number
- CN104121238A CN104121238A CN201410385228.7A CN201410385228A CN104121238A CN 104121238 A CN104121238 A CN 104121238A CN 201410385228 A CN201410385228 A CN 201410385228A CN 104121238 A CN104121238 A CN 104121238A
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- CN
- China
- Prior art keywords
- pipe
- tube
- sparger
- casing
- centrifugal pump
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a jet pump. The jet pump comprises a box body, a centrifugal pump and an ejector. The ejector is mounted on the top of the box body. A water inlet of the centrifugal pump is communicated with the box body. A water outlet of the centrifugal pump is communicated with the ejector. The ejector comprises a straight pipe, a contracted pipe, a throat pipe and a diffusing pipe, wherein the straight pipe, the contracted pipe, the throat pipe and the diffusing pipe are connected with one another in sequence. A jet nozzle which is inserted in the straight pipe and extends to the contracted pipe is arranged in the straight pipe. The straight pipe is provided with a communicating pipe. The communicating pipe penetrates out of the box body and then is connected with a water source. The jet nozzle comprises an inlet, a contraction section and an expansion section, wherein the inlet, the contraction section and the expansion section are connected with one another in sequence. The caliber of the position, far from the contraction section, of the expansion section is larger than that of the position, close to the contraction section, of the expansion section. The jet pump can increase the flow velocity of working fluid in the jet pump, and then the working efficiency of the jet pump can be improved.
Description
Technical field
The present invention relates to a kind of Jet injector, belong to pump housing technical field.
Background technique
Jet injector utilizes fluid to come the vacuum of transferring energy and quality to obtain 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 that environmental protection absorbs tail gas, dust reduces 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, mainly nozzle, trunnion, diffusing tube etc., consists of.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 (current), thereby make the pressure of this region of no pressure lower, increase work efficiency.
Summary of the invention
The present invention wants technical solution problem to be: the Jet injector that a kind of working efficiency is high is provided.
In order to solve the problems of the technologies described above, the technological scheme that the present invention proposes is: a kind of Jet injector, comprise casing, centrifugal pump and sparger, described sparger is arranged on the top of casing, one upper lateral part of described casing is provided with spill pipe, the water inlet of described centrifugal pump is communicated with casing, and the water outlet of described centrifugal pump is communicated with sparger; Described sparger comprises successively straight tube, the draw, trunnion and the diffusing tube connecting, and is provided with the nozzle that inserts this straight tube and extend to the draw in described straight tube, and described straight tube is provided with connecting tube, is connected after passing casing described connecting tube with water source; Described nozzle comprises entrance, contraction section and the extending section connecting 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 flows through the pipeline that a thickness do not wait, 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.When surface is outstanding, stream pipe is thinner, and flow velocity is accelerated, pressure decreased.
Therefore, when fluid passes through specific extending section, at the edge of extending section, form whirlpool, 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.The present invention compares with the expander of 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 liquid jetting device, thereby improved the working efficiency of Jet injector under the pressure of atmosphere.
In use, described connecting tube is communicated with fluid source (as water source), and sparger forms " vacuum " district at extending section outlet rear side, fluid flows to region of no pressure under atmospheric effect, and mix with the fluid of sparger ejection, then from spill pipe, flow out, thereby realize the transmission of fluid.The present invention not only can be used for transmitting water, also can be used for transmitting other liquid.
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.
As preferred version, in described casing, be provided with vertical isolating plate, the both sides of described spill pipe and sparger separation isolating plate, the water inlet of described centrifugal pump and spill pipe are positioned at the same side of isolating plate.
Accompanying drawing explanation
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.
Fig. 2 is the structural representation of sparger in Fig. 1.
Embodiment
Embodiment
The Jet injector of the present embodiment as depicted in figs. 1 and 2, comprise casing 1, centrifugal pump 3 and sparger 4, sparger 4 is arranged on the top of casing 1, and a upper lateral part of casing 1 is provided with spill pipe 5, the water inlet of centrifugal pump 3 is communicated with casing 1, and the water outlet of centrifugal pump 3 is communicated with sparger 4; Sparger 4 comprises straight tube 4-1, draw 4-2, trunnion 4-3 and the diffusing tube 4-4 connecting successively, is provided with the nozzle that inserts this straight tube 4-1 and extend to draw 4-2 in straight tube 4-1, and straight tube 4-1 is provided with connecting tube 6, passes casing 1 connecting tube 6 and is connected with water source afterwards; Nozzle comprises entrance 4-6, contraction section 4-7 and the extending section 4-8 connecting successively, and extending section 4-8 is larger from contraction section 4-7 bore nearby from contraction section 4-7 bore at a distance.
In the present embodiment, extending section 8 is the hollow circular-tube of taper, and 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.
In the present embodiment, casing 1 is interior can also arrange vertical isolating plate 2, the both sides of spill pipe 5 and sparger 4 separation isolating plates 2, and the water inlet of centrifugal pump 3 and spill pipe 5 are positioned at the same side of isolating plate 2.The water level fluctuation that the high-velocity flow that can avoid like this sparger 4 to spray causes affects the smooth operation of centrifugal pump.
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 (4)
1. a Jet injector, comprises casing, centrifugal pump and sparger, and described sparger is arranged on the top of casing, and a upper lateral part of described casing is provided with spill pipe, and the water inlet of described centrifugal pump is communicated with casing, and the water outlet of described centrifugal pump is communicated with sparger; It is characterized in that: described sparger comprises successively straight tube, the draw, trunnion and the diffusing tube connecting, in described straight tube, be provided with the nozzle that inserts this straight tube and extend to the draw, described straight tube is provided with connecting tube, is connected after passing casing described connecting tube with water source; Described nozzle comprises entrance, contraction section and the extending section connecting successively, and described extending section is larger from contraction section bore nearby from contraction section bore at a distance.
2. Jet injector according to claim 1, is characterized in that: the hollow circular-tube that described extending section is taper.
3. Jet injector according to claim 2, is characterized in that: the tapering of described hollow circular-tube is 60-80 degree.
4. according to the arbitrary described Jet injector of claim 1-3, it is characterized in that: in described casing, be provided with vertical isolating plate, the both sides of described spill pipe and sparger separation isolating plate, the water inlet of described centrifugal pump and spill pipe are positioned at the same side of isolating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385228.7A CN104121238A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385228.7A CN104121238A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121238A true CN104121238A (en) | 2014-10-29 |
Family
ID=51766799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385228.7A Pending CN104121238A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890733A (en) * | 2017-11-29 | 2018-04-10 | 郑州琨茂环保科技有限公司 | Jet microvesicle occurrence of equipment for granulation tower dedusting |
| CN112827690A (en) * | 2020-12-31 | 2021-05-25 | 广东省科学院新材料研究所 | Nozzle device and spraying equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212716U (en) * | 1987-10-16 | 1988-11-02 | 王绍志 | Efflux type drainage system for well spots in construction engineering |
| US20040103685A1 (en) * | 2002-11-28 | 2004-06-03 | Motohiro Yamaguchi | Ejector cycle system |
| US6877960B1 (en) * | 2002-06-05 | 2005-04-12 | Flodesign, Inc. | Lobed convergent/divergent supersonic nozzle ejector system |
| CN102022387A (en) * | 2009-09-10 | 2011-04-20 | 株式会社电装 | Ejector |
-
2014
- 2014-08-07 CN CN201410385228.7A patent/CN104121238A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87212716U (en) * | 1987-10-16 | 1988-11-02 | 王绍志 | Efflux type drainage system for well spots in construction engineering |
| US6877960B1 (en) * | 2002-06-05 | 2005-04-12 | Flodesign, Inc. | Lobed convergent/divergent supersonic nozzle ejector system |
| US20040103685A1 (en) * | 2002-11-28 | 2004-06-03 | Motohiro Yamaguchi | Ejector cycle system |
| CN102022387A (en) * | 2009-09-10 | 2011-04-20 | 株式会社电装 | Ejector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890733A (en) * | 2017-11-29 | 2018-04-10 | 郑州琨茂环保科技有限公司 | Jet microvesicle occurrence of equipment for granulation tower dedusting |
| CN107890733B (en) * | 2017-11-29 | 2023-08-01 | 郑州琨茂环保科技有限公司 | Jet flow microbubble generating device for dedusting of prilling tower |
| CN112827690A (en) * | 2020-12-31 | 2021-05-25 | 广东省科学院新材料研究所 | Nozzle device and spraying equipment |
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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: 20141029 |
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| RJ01 | Rejection of invention patent application after publication |