CN104121239A - Jet pump - Google Patents
Jet pump Download PDFInfo
- Publication number
- CN104121239A CN104121239A CN201410385016.9A CN201410385016A CN104121239A CN 104121239 A CN104121239 A CN 104121239A CN 201410385016 A CN201410385016 A CN 201410385016A CN 104121239 A CN104121239 A CN 104121239A
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- CN
- China
- Prior art keywords
- pipe
- tube
- jet injector
- casing
- rubber layer
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- 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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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. The upper portion of one side of the box body is provided with an overflow pipe. 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 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 fluid source. The communicating pipe comprises a ceramic pipe, a rubber layer and a metal layer, wherein the ceramic pipe, the rubber layer and the metal layer are attached to one another in sequence from inside to outside. The space between the rubber layer and the ceramic pipe and the space between the rubber layer and the metal layer are both coated with resin adhesives. 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 is high in corrosion resistance and working efficiency.
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, even can directly aspirate high concentration corrosive liquids, and the aspect such as can be applied to reduce that environmental pollution improves working conditions, there are mechanical type, the incomparable advantage of Nash hytor.
But the delivery pipe of using in Jet injector mostly at present is flexible hose, and corrosion resistance is poor, is not suitable for the production application under rugged environment.
Summary of the invention
The present invention wants technical solution problem to be: a kind of corrosion resistant Jet injector is provided, and this Jet injector can reduce the replacement cycle of connecting tube, thereby reduces production costs.
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 fluid source; Comprise stoneware pipe, rubber layer and the metal layer of fitting successively from inside to outside described connecting tube, between described rubber layer and stoneware pipe, metal layer, be all coated with resin glue; 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.
The improvement of technique scheme is: described rubber layer is sticked on stoneware pipe perisporium and combined by the sheet rubber being arranged in order.
The further improvement of technique scheme is: described resin glue is epoxy resin glue.
The further improvement of technique scheme is: described metal layer is involuted by fastening piece by two of symmetrical left and right.
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.
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.
The present invention in use, described connecting tube is communicated with fluid source (as water source), sparger forms " vacuum " district at jet expansion 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 is owing to adopting stoneware pipe as connecting tube, directly contact with the liquid of transmission, make full use of the advantage of the smooth and easy manufacture of ceramic surface, thereby reduce current mobile resistance in runner, improve the efficiency of Jet injector, thereby reduced cost of production.Because pottery has stronger corrosion resistance, thereby the present invention adopts stoneware pipe as connecting tube, improved the corrosion resistance of connecting tube, reduced the replacement frequency of connecting tube, thereby further reduced cost of production.In addition, there is a rubber layer stoneware pipe perisporium is coated, utilize high elasticity and the high viscosity of rubber, can make it have good damping and shock-absorbing capacity, overcome the intrinsic low shortcoming of large, the shock-resistant ability of fragility of pottery, improved the reliability of connecting tube; At rubber layer outsourcing coating metal layer, utilize the advantage of metal layer good rigidity again, improved shock proof ability of connecting tube.
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 connecting tube in Fig. 1.
Fig. 3 is the structural representation of sparger in Fig. 1.
Embodiment
Embodiment
The Jet injector of the present embodiment as shown in Figure 1, 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 is provided with connecting tube 6, passes casing 1 connecting tube 6 and is connected with fluid source afterwards.
As shown in Figure 2, comprise from inside to outside stoneware pipe 6-1, rubber layer 6-3 and the metal layer 6-5 of laminating successively in the present embodiment connecting tube 6, between rubber layer 6-3 and stoneware pipe 6-1, metal layer 6-5, be all coated with resin glue, resin glue can adopt epoxy resin glue.
In the present embodiment, rubber layer 6-3 is sticked on stoneware pipe perisporium and is combined by the sheet rubber being arranged in order.The present embodiment has a rubber layer 6-3 stoneware pipe 6-1 perisporium is coated, utilize high elasticity and the high viscosity of rubber, can make it have good damping and shock-absorbing capacity, overcome the intrinsic low shortcoming of large, the shock-resistant ability of fragility of pottery, improve the reliability of connecting tube.
As shown in Figure 3, in the present embodiment, sparger 4 comprises straight tube 4-1, draw 4-2, trunnion 4-3 and the diffusing tube 4-4 connecting successively, in straight tube 4-1, be provided with the nozzle that inserts this straight tube 4-1 and extend to draw 4-2, straight tube 4-1 is provided with the connecting tube 6 being connected with fluid source; 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.
The hollow circular-tube that in the present embodiment, extending section 4-8 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.
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 3.
In order to facilitate the installation of metal layer 6-5, the present embodiment can be done following improvement: metal layer 6-5 is divided into two of symmetrical left and right, and two metal layers involute complete metal layer by fastening piece.
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 (6)
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; 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 fluid source; It is characterized in that: comprise from inside to outside stoneware pipe, rubber layer and the metal layer of laminating successively described connecting tube, between described rubber layer and stoneware pipe, metal layer, be all coated with resin glue; 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: described rubber layer is sticked on stoneware pipe perisporium and combined by the sheet rubber being arranged in order.
3. Jet injector according to claim 1 and 2, is characterized in that: described resin glue is epoxy resin glue.
4. Jet injector according to claim 1 and 2, is characterized in that: described metal layer is involuted by fastening piece by two of symmetrical left and right.
5. Jet injector according to claim 1 and 2, is characterized in that: the hollow circular-tube that described extending section is taper.
6. Jet injector according to claim 5, 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 |
|---|---|---|---|
| CN201410385016.9A CN104121239A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410385016.9A CN104121239A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121239A true CN104121239A (en) | 2014-10-29 |
Family
ID=51766800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385016.9A Pending CN104121239A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121239A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371946A (en) * | 2015-12-03 | 2016-03-02 | 哈尔滨工程大学 | Water jet source apparatus with constant pressure |
| CN106284381A (en) * | 2016-09-18 | 2017-01-04 | 深圳市铁汉生态环境股份有限公司 | Jet-type spinneret |
| CN106284382A (en) * | 2016-09-18 | 2017-01-04 | 深圳市铁汉生态环境股份有限公司 | A kind of continuous spinning device of jetting type and a kind of reinforcement soil plant raw system |
Citations (8)
| 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 |
| JPH08254200A (en) * | 1995-03-15 | 1996-10-01 | Tlv Co Ltd | Vacuum pump device |
| US20040103685A1 (en) * | 2002-11-28 | 2004-06-03 | Motohiro Yamaguchi | Ejector cycle system |
| JP2008196435A (en) * | 2007-02-15 | 2008-08-28 | Tlv Co Ltd | Vacuum pump device |
| CN101532513A (en) * | 2008-03-12 | 2009-09-16 | 株式会社电装 | Ejector |
| CN201903371U (en) * | 2010-11-16 | 2011-07-20 | 上海威尔泰工业自动化股份有限公司 | Electromagnetic flowmeter sensor with composite liner |
| CN201970499U (en) * | 2011-03-18 | 2011-09-14 | 卢治红 | Rubber roller with surface embedded with ceramic |
| CN102275138A (en) * | 2011-09-10 | 2011-12-14 | 闫俊平 | Structure for nozzle of shot-blasting gun |
-
2014
- 2014-08-07 CN CN201410385016.9A patent/CN104121239A/en active Pending
Patent Citations (8)
| 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 |
| JPH08254200A (en) * | 1995-03-15 | 1996-10-01 | Tlv Co Ltd | Vacuum pump device |
| US20040103685A1 (en) * | 2002-11-28 | 2004-06-03 | Motohiro Yamaguchi | Ejector cycle system |
| JP2008196435A (en) * | 2007-02-15 | 2008-08-28 | Tlv Co Ltd | Vacuum pump device |
| CN101532513A (en) * | 2008-03-12 | 2009-09-16 | 株式会社电装 | Ejector |
| CN201903371U (en) * | 2010-11-16 | 2011-07-20 | 上海威尔泰工业自动化股份有限公司 | Electromagnetic flowmeter sensor with composite liner |
| CN201970499U (en) * | 2011-03-18 | 2011-09-14 | 卢治红 | Rubber roller with surface embedded with ceramic |
| CN102275138A (en) * | 2011-09-10 | 2011-12-14 | 闫俊平 | Structure for nozzle of shot-blasting gun |
Non-Patent Citations (1)
| Title |
|---|
| 蔡育之: "《粮油工业建筑》", 30 June 1983 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371946A (en) * | 2015-12-03 | 2016-03-02 | 哈尔滨工程大学 | Water jet source apparatus with constant pressure |
| CN106284381A (en) * | 2016-09-18 | 2017-01-04 | 深圳市铁汉生态环境股份有限公司 | Jet-type spinneret |
| CN106284382A (en) * | 2016-09-18 | 2017-01-04 | 深圳市铁汉生态环境股份有限公司 | A kind of continuous spinning device of jetting type and a kind of reinforcement soil plant raw system |
| CN106284381B (en) * | 2016-09-18 | 2018-10-16 | 深圳市铁汉生态环境股份有限公司 | Jet-type spinneret |
| CN106284382B (en) * | 2016-09-18 | 2018-10-16 | 深圳市铁汉生态环境股份有限公司 | A kind of continuous spinning device of jetting type and a kind of reinforcement soil plant raw system |
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Application publication date: 20141029 |