CN106402047A - Jet pump capable of reducing flow resistance of fluid in communicating tube - Google Patents
Jet pump capable of reducing flow resistance of fluid in communicating tube Download PDFInfo
- Publication number
- CN106402047A CN106402047A CN201610882368.4A CN201610882368A CN106402047A CN 106402047 A CN106402047 A CN 106402047A CN 201610882368 A CN201610882368 A CN 201610882368A CN 106402047 A CN106402047 A CN 106402047A
- Authority
- CN
- China
- Prior art keywords
- tube
- fluid
- injector
- jet pump
- casing
- 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
-
- 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
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
-
- 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
- F04F5/04—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 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
- F04F5/46—Arrangements of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
Abstract
The invention relates to a jet pump capable of reducing flow resistance of fluid in a communicating tube. The jet pump comprises a box body, a centrifugal pump and an ejector, wherein the ejector is mounted at the top of the box body; an overflow pipe is arranged at the upper part of one side of the box body; the water inlet of the centrifugal pump communicates with the box body; the water outlet of the centrifugal pump communicates with the ejector; the communicating tube is arranged on the ejector and connected with a fluid source after penetrating the box body; the ejector comprises a straight tube, a contracted tube, a throat tube and a diffusing tube which are connected in sequence; a nozzle is arranged in the straight tube; the communicating tube is arranged on the straight tube and comprises a metal tube and ceramic plates attached onto the inner wall of the metal tube in a coating manner; a resin adhesive is arranged between the metal tube and the ceramic plates in a coating manner; counter bores are formed in the inner wall of the metal tube; ceramic pillars which can be inserted into the corresponding counter bores are arranged on the ceramic plates; and tongues and grooves, which are matched with each other, are formed on opposite side surfaces of the adjacent ceramic plates. According to the jet pump, the flow rate of the working fluid in the jet pump can be increased, and further, the working efficiency can be improved.
Description
Technical field
The present invention relates to a kind of jet pump, belong to pump housing technical field.
Background technology
Jet pump utilizes a fluid to transmit the vacuum acquirement device of energy and quality, is passed through using the current having certain pressure
Injection stream sprays, and because injection water flow velocity is especially high, pressure energy is speed energy, so that air-breathing area reduced pressure is produced true
Material is taken away by sky under atmospheric pressure.Jet pump has that processing and fabricating is simple, it is safe, easy to maintenance to run, effect relatively
Good the advantages of, it is suitable for different working environments and requirement, or even can directly aspirate high concentration corrosive liquids it is possible to apply
The aspect such as improve working conditions in reducing environmental pollution, have the advantages that mechanical, water-ring vacuum pump is incomparable.
But the delivery pipe in current jet pump mostly is flexible hose, and corrosion resistance is poor, is not suitable under adverse circumstances
Production application.
In addition, injector is one of critical component in jet pump, mainly it is made up of nozzle, trunnion, anemostat etc..Existing
Injector generally be in venturi tube structure, be working fluid from the coarse to fine, to accelerate working fluid flow velocity, so that working fluid is existed
The rear side of venturi outlet forms " vacuum " area.The purpose of the present invention is to increase the flow velocity of working fluid further, thus
Make the negative pressure of this region of no pressure lower, improve operating efficiency.
Content of the invention
The invention solves the problems that technical problem is：There is provided a kind of efficient and corrosion resistant jet pump, this jet pump can reduce
The replacement cycle of communicating pipe, thus reduce production cost.
In order to solve above-mentioned technical problem, technical scheme proposed by the present invention is：A kind of jet pump, including casing, centrifugation
Pump and injector, described injector is arranged on the top of casing, and a upper lateral part of described casing is provided with overflow pipe, described centrifugal pump
Water inlet connect with casing, the delivery port of described centrifugal pump is connected with injector；It is straight that described injector includes being sequentially connected
Pipe, the draw, trunnion and anemostat, are provided with the nozzle inserting this straight tube and extending to the draw, described straight tube set in described straight tube
There is communicating pipe, be connected with fluid source after described communicating pipe passing casing；Include metal tube described communicating pipe and be covered on metal tube
The ceramic wafer of inwall, is coated with resin glue between described metal tube and ceramic wafer, and described inner wall of metal tube is provided with counterbore, described
Ceramic wafer is provided with the ceramics pole of pluggable corresponding counterbore, and the opposite side of adjacent ceramic plate is formed with the slip feather matching and tongue-and-groove；
Described nozzle includes entrance, contraction section and the expansion segment being sequentially connected, and the bore from contraction section distant place for the described expansion segment is relatively from receipts
Contracting section bore nearby is bigger.
The improvement of technique scheme is：The cross section of described ceramic wafer is radially gradually to the ladder of contract along metal tube
Shape, is also coated with resin glue between the side of adjacent ceramic plate.
The improvement further of technique scheme is：It is raised that the outer surface of described ceramics pole is provided with uniform graininess.
The improvement further of technique scheme is：Described slip feather and tongue-and-groove all in strip and run through the side of ceramic wafer.
Preferably, described expansion segment is the hollow circular-tube of taper.Further, the taper of described hollow circular-tube is 60-80 degree.
The method of work of described jet pump, including：Described communicating pipe and fluid source（As water source）Connection, injector is in nozzle
Outlet rear side forms region of no pressure, and fluid flows to region of no pressure under atmospheric pressure, and the fluid being sprayed with injector is mixed
Closing, then flowing out from overflow pipe, thus realizing the transmission of fluid.
According to the continuity theorem of fluid, when fluid successively and stably flows through the pipeline that a thickness does not wait,
Because the fluid of a part any in pipeline all can not interrupt or extrudes, therefore within the same time, flow to arbitrary tangent plane
The quality of fluid and from another tangent plane flow out fluid mass be equal.Further accordance with Bernoulli's theorem, fluid is managed at one
When flowing in road, the big local pressure of flow velocity is little, and the little local pressure of flow velocity is big.When surface projects, flow tube is thinner, and flow velocity adds
Hurry up, reduced pressure.
Therefore, when fluid passes through specific expansion segment, form whirlpool at the edge of expansion segment, this whirlpool makes expansion segment go out
Mouth is formed about low-pressure area, and fluid just constantly flows into towards low-pressure area, can obtain very big speedup effect.The present invention and Wen
The expander of tubular construction is compared, and faster, " vacuum " area that expansion segment outlet rear side is formed obtains lower negative pressure to the flow velocity of fluid,
Can make in the anemostat that fluid exports ejector faster under the pressure of air, thus improve the work effect of jet pump
Rate.
The present invention when using, described communicating pipe and fluid source（As water source）Connection, injector shape on rear side of jet expansion
Become " vacuum " area, fluid flows to region of no pressure under atmospheric pressure, and the fluid being sprayed with injector is mixed, Ran Houcong
Overflow pipe flows out, thus realizing the transmission of fluid.
The present invention due to the ceramic wafer with ceramics pole being uniformly inserted into the metal tube with counterbore, simultaneously metal tube and
It is coated with resin glue between ceramic wafer, therefore increased the laminating ability between metal tube and ceramic wafer, make the connection of the present invention
Pipe is not allowed easy to fall off and is damaged, and improves wear-resisting intensity and service life, can efficiently reduce the replacement frequency of communicating pipe, from
And reduce production cost.Due to pottery compared with metal more resistant to corrosion, thus the present invention is by avoiding metal straight with corrosive fluid
Contact, improves the corrosion resistance of communicating pipe, reduce further the replacement frequency of communicating pipe, thus reduce further life
Produce cost.In addition, the present invention can utilize the advantage of ceramic wafer smooth surface and easy to manufacture, reduce liquid and flow within communicating pipe
Dynamic resistance, improves and produces efficiency.
Brief description
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the structural representation of communicating pipe in Fig. 1.
Fig. 3 is the structural representation of injector in Fig. 1.
Specific embodiment
Embodiment
As depicted in figs. 1 and 2, including casing 1, centrifugal pump 3 and injector 4, injector 4 is arranged on case to the jet pump of the present embodiment
The top of body 1, a upper lateral part of casing 1 is provided with overflow pipe 5, and the water inlet of centrifugal pump 3 is connected with casing 1, the water outlet of centrifugal pump 3
Mouth is connected with injector 4；Pipe 6 is communicated with injector 4, is connected with fluid source after communicating pipe 6 passing casing 1；Communicating pipe 6 wraps
Include the metal tube 6-1 and ceramic wafer 6-2 being covered on metal tube 6-1 inwall, metal tube 6-1 inwall is provided with counterbore, ceramic wafer 6-2
It is provided with the ceramics pole 6-3 of pluggable corresponding counterbore, between metal tube 6-1 and ceramic wafer 6-2, be coated with resin glue, adjacent ceramic
The opposite side of plate 6-2 is formed with the slip feather matching and tongue-and-groove.In the present embodiment, slip feather and tongue-and-groove all in strip and run through ceramic wafer
Side, resin glue can adopt epoxide-resin glue.
As shown in figure 3, injector 4 includes straight tube 4-1, draw 4-2, trunnion 4-3 and the expansion being sequentially connected in the present embodiment
Scattered pipe 4-4, is provided with insertion this straight tube 4-1 and extends to the nozzle of draw 4-2, straight tube 4-1 is provided with and fluid source in straight tube 4-1
The communicating pipe 6 connecting；Nozzle includes entrance 4-6, contraction section 4-7 and the expansion segment 4-8 being sequentially connected, and expansion segment 4-8 is from contraction
The bore of section 4-7 distant place is bigger compared with the bore nearby from contraction section 4-7.
In the present embodiment, expansion segment 4-8 is the hollow circular-tube of taper, and the taper of hollow circular-tube is 70 degree.Certainly hollow circular-tube
Taper can select the arbitrary value between 60-80 degree.
In the present embodiment, the cross section of ceramic wafer 6-2 is radially gradually trapezoidal to contract along metal tube 6-1, adjacent
It is also coated with resin glue, the outer surface of ceramics pole 6-3 is provided with uniform graininess projection between the side of ceramic wafer 6-2.Particle
Shape projection can increase ceramic wafer 6-2 and the adhesion of metal tube 6-1, prevents ceramic wafer 6-2 de- from metal tube 6-1 further
Fall.
Vertical division board 2, overflow pipe 5 and injector 4 separation division board 2 can also be set in casing 1 in the present embodiment
Both sides, the water inlet of centrifugal pump 3 and overflow pipe 5 are located at the phase homonymy of division board 2.Injector 4 so can be avoided to spray
The water level fluctuation that high-velocity flow causes affects the steady operating of centrifugal pump 3.
The present invention is not limited to the concrete technical scheme described in above-described embodiment, and in addition to the implementation, the present invention also may be used
There to be other embodiment.The technical scheme that all employing equivalents are formed, is the protection domain of application claims.
Claims (1)
1. a kind of method of work of jet pump, jet pump includes casing, centrifugal pump and injector, and described injector is arranged on casing
Top, a upper lateral part of described casing is provided with overflow pipe, and the water inlet of described centrifugal pump is connected with casing, described centrifugal pump
Delivery port is connected with injector；Described injector includes straight tube, the draw, trunnion and the anemostat being sequentially connected, in described straight tube
Be provided with and insert this straight tube and extend to the nozzle of the draw, described straight tube is communicated with manage, pass described communicating pipe after casing with
Fluid source connects；It is characterized in that：Include metal tube described communicating pipe and be covered on the ceramic wafer of inner wall of metal tube, described metal
It is coated with resin glue, described inner wall of metal tube is provided with counterbore, and described ceramic wafer is provided with pluggable phase between pipe and ceramic wafer
Answer the ceramics pole of counterbore, the opposite side of adjacent ceramic plate is formed with the slip feather matching and tongue-and-groove；Described nozzle includes being sequentially connected
Entrance, contraction section and expansion segment, the bore from contraction section distant place for the described expansion segment is bigger compared with the bore nearby from contraction section；
Described expansion segment is the hollow circular-tube of taper；The taper of described hollow circular-tube is 60-80 degree；
Described method of work, including：Described communicating pipe and fluid source（As water source）Connection, injector shape on rear side of jet expansion
Become region of no pressure, fluid flows to region of no pressure under atmospheric pressure, and the fluid being sprayed with injector is mixed, then from excessive
Flow tube flows out, thus realizing the transmission of fluid；
Described slip feather and tongue-and-groove all in strip and run through the side of ceramic wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882368.4A CN106402047A (en) | 2014-08-07 | 2014-08-07 | Jet pump capable of reducing flow resistance of fluid in communicating tube |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882368.4A CN106402047A (en) | 2014-08-07 | 2014-08-07 | Jet pump capable of reducing flow resistance of fluid in communicating tube |
| CN201410385197.5A CN104154049B (en) | 2014-08-07 | 2014-08-07 | A kind of jet pump |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410385197.5A Division CN104154049B (en) | 2014-08-07 | 2014-08-07 | A kind of jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106402047A true CN106402047A (en) | 2017-02-15 |
Family
ID=51879636
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610882435.2A Active CN106286426B (en) | 2014-08-07 | 2014-08-07 | Reduce the jet pump of liquid flow resistance within communicating pipe |
| CN201610882491.6A Pending CN106286425A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
| CN201610882368.4A Pending CN106402047A (en) | 2014-08-07 | 2014-08-07 | Jet pump capable of reducing flow resistance of fluid in communicating tube |
| CN201610882433.3A Pending CN106402045A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
| CN201410385197.5A Active CN104154049B (en) | 2014-08-07 | 2014-08-07 | A kind of jet pump |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610882435.2A Active CN106286426B (en) | 2014-08-07 | 2014-08-07 | Reduce the jet pump of liquid flow resistance within communicating pipe |
| CN201610882491.6A Pending CN106286425A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610882433.3A Pending CN106402045A (en) | 2014-08-07 | 2014-08-07 | Jet pump |
| CN201410385197.5A Active CN104154049B (en) | 2014-08-07 | 2014-08-07 | A kind of jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN106286426B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371946B (en) * | 2015-12-03 | 2018-04-17 | 哈尔滨工程大学 | A kind of constant water jet source device of pressure |
| RU2639240C1 (en) * | 2016-11-02 | 2017-12-20 | Общество с ограниченной ответственностью "МилИнвест" (ООО "МилИнвест") | Device for transportation of suspensions |
| RU2657002C1 (en) * | 2017-06-23 | 2018-06-09 | Общество с ограниченной ответственностью "Промышленные инновации" (ООО "Промышленные инновации") | Pump for bulk media hydraulic transportation |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106402045A (en) | 2017-02-15 |
| CN106286425A (en) | 2017-01-04 |
| CN106286426B (en) | 2018-03-13 |
| CN106286426A (en) | 2017-01-04 |
| CN104154049B (en) | 2016-10-26 |
| CN104154049A (en) | 2014-11-19 |
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| PB01 | Publication | ||
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Application publication date: 20170215 |