CN106286426A - Reduce liquid jet pump of flow resistance within communicating pipe - Google Patents

Reduce liquid jet pump of flow resistance within communicating pipe Download PDF

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Publication number
CN106286426A
CN106286426A CN201610882435.2A CN201610882435A CN106286426A CN 106286426 A CN106286426 A CN 106286426A CN 201610882435 A CN201610882435 A CN 201610882435A CN 106286426 A CN106286426 A CN 106286426A
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CN
China
Prior art keywords
ejector
casing
tube
pipe
communicating pipe
Prior art date
Application number
CN201610882435.2A
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Chinese (zh)
Other versions
CN106286426B (en
Inventor
不公告发明人
Original Assignee
充梦霞
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 充梦霞 filed Critical 充梦霞
Priority to CN201410385197.5A priority Critical patent/CN104154049B/en
Priority to CN201610882435.2A priority patent/CN106286426B/en
Publication of CN106286426A publication Critical patent/CN106286426A/en
Application granted granted Critical
Publication of CN106286426B publication Critical patent/CN106286426B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10Jet 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/54Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/04Jet 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46Arrangements of nozzles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/14Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups

Abstract

The present invention relates to a kind of reduce liquid jet pump of flow resistance within communicating pipe, this jet pump includes casing, centrifugal pump and ejector, described ejector is arranged on the top of casing, one upper lateral part of described casing is provided with overflow pipe, the water inlet of described centrifugal pump connects with casing, the outlet of described centrifugal pump connects with ejector, described ejector is communicated with pipe, is connected with fluid source after described communicating pipe passing casing;Described ejector includes straight tube, the draw, trunnion and the anemostat being sequentially connected with, and is provided with nozzle in described straight tube, and described straight tube is communicated with pipe;Include metal tube described communicating pipe and be covered on the ceramic wafer of inner wall of metal tube, it is coated with resin glue between described metal tube and ceramic wafer, described inner wall of metal tube is provided with counterbore, described ceramic wafer is provided with the ceramics pole that can be inserted into corresponding counterbore, and the side in opposite directions of adjacent ceramic plate is shaped with the slip feather and tongue-and-groove matched.This jet pump can improve the flow velocity of working fluid in jet pump, and then can improve its work efficiency.

Description

Reduce liquid jet pump of flow resistance within communicating pipe

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 energy and the vacuum acquirement device of quality, uses and has the current of certain pressure to pass through Injection stream sprays, and owing to jet water course speed is the highest, is speed energy by pressure energy, makes the low generation of pressure drop of air-breathing district true Sky, takes away material under atmospheric pressure.Jet pump has that processing and fabricating is simple, it is safe, easy to maintenance to run, effect relatively The advantage such as good, is suitable for different working environments and requirement, even can directly aspirate high concentration corrosive liquids, it is possible to application In reducing the aspects such as environmental pollution improves working conditions, there is the advantage that mechanical type, water-ring vacuum pump are incomparable.

But the conveying pipe in jet pump mostly is flexible hose at present, and corrosion resistance is poor, is not suitable under adverse circumstances Production application.

It addition, ejector is one of critical component in jet pump, mainly it is made up of nozzle, trunnion, anemostat etc..Existing Ejector generally in venturi tube structure, be working fluid from the coarse to fine, to accelerate working fluid flow velocity, make working fluid exist The rear side of venturi outlet forms " vacuum " district.It is an object of the invention to increase further the flow velocity of working fluid, thus The negative pressure making this region of no pressure is lower, improves work efficiency.

Summary of the invention

The invention solves the problems that and technical problem is that: providing 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, the technical scheme that the present invention proposes is: a kind of jet pump, including casing, is centrifuged Pump and ejector, described ejector 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 outlet of described centrifugal pump connects with ejector;It is straight that described ejector includes being sequentially connected with Pipe, the draw, trunnion and anemostat, be provided with in described straight tube and insert this straight tube and extend to the nozzle of the draw, described straight tube sets Have after communicating pipe, described communicating pipe passing casing and be connected with fluid source;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, described inner wall of metal tube is provided with counterbore, described Ceramic wafer is provided with the ceramics pole that can be inserted into corresponding counterbore, and the side in opposite directions of adjacent ceramic plate is shaped with the slip feather and tongue-and-groove matched; Described nozzle includes entrance, contraction section and the expansion segment being sequentially connected with, and the described expansion segment bore from contraction section distant place 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.

Improving further of technique scheme is: it is protruding that the outer surface of described ceramics pole is provided with uniform graininess.

Improving further of technique scheme is: described slip feather and tongue-and-groove are all in strip and run through the side of ceramic wafer. Preferably, described expansion segment is the hollow circular-tube of taper.Further, the tapering of described hollow circular-tube is 60-80 degree.

The method of work of described jet pump, including: described communicating pipe connects with fluid source (such as water source), and ejector is at nozzle Forming region of no pressure on rear side of outlet, fluid flows to region of no pressure under atmospheric pressure, and the fluid sprayed with ejector mixes Close, then flow out from overflow pipe, thus realize 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 waits, Owing to the fluid of a part any in pipeline all can not interrupt or extrude, therefore within the same time, flow to arbitrary tangent plane The quality of fluid and the fluid mass flowed out from another tangent plane be equal.Further accordance with Bernoulli's theorem, fluid is at a pipe In road during flowing, the local pressure that flow velocity is big is little, and the local pressure that flow velocity is little is big.When surface highlights, flow tube is relatively thin, and flow velocity adds Hurry up, pressure reduces.

Therefore, when fluid is by specific expansion segment, forming 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 the biggest speedup effect.The present invention and Wen The dilator of tubular construction is compared, and faster, " vacuum " district formed on rear side of expansion segment outlet obtains lower negative pressure to the flow velocity of fluid, Fluid can be made under the pressure of air to export faster in the anemostat of ejector, thus improve the work effect of jet pump Rate.

In use, described communicating pipe connects the present invention with fluid source (such as water source), and ejector is shape on rear side of jet expansion Becoming " vacuum " district, fluid flows to region of no pressure under atmospheric pressure, and mixes with the fluid of ejector ejection, then from Overflow pipe flows out, thus realizes the transmission of fluid.

Due to the fact that and the ceramic wafer with ceramics pole is uniformly inserted into the metal tube with counterbore, simultaneously metal tube and It is coated with resin glue between ceramic wafer, therefore adds the laminating ability between metal tube and ceramic wafer, make the connection of the present invention Pipe is not easy to come off and damage, and improves wear-resisting intensity and service life, it is possible to efficiently reduce the replacement frequency of communicating pipe, from And reduce production cost.Owing to pottery relatively metal is 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.It addition, the present invention can utilize ceramic wafer smooth surface and the advantage easily manufactured, reduce liquid and flow within communicating pipe Dynamic resistance, improves and produces efficiency.

Accompanying drawing explanation

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 ejector in Fig. 1.

Detailed description of the invention

Embodiment

As depicted in figs. 1 and 2, including casing 1, centrifugal pump 3 and ejector 4, ejector 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 connects with casing 1, the water outlet of centrifugal pump 3 Mouth connects with ejector 4;It is communicated with pipe 6 on ejector 4, is connected with fluid source after communicating pipe 6 passing casing 1;Communicating pipe 6 wraps Including metal tube 6-1 and be covered on the ceramic wafer 6-2 of 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 that can be inserted into corresponding counterbore, between metal tube 6-1 and ceramic wafer 6-2, is coated with resin glue, adjacent ceramic The side in opposite directions of plate 6-2 is shaped with the slip feather and tongue-and-groove matched.In the present embodiment, slip feather and tongue-and-groove are all in strip and run through ceramic wafer Side, resin glue can use epoxide-resin glue.

As it is shown on figure 3, ejector 4 includes straight tube 4-1, draw 4-2, trunnion 4-3 and the expansion being sequentially connected with in the present embodiment Dissipating pipe 4-4, be provided with and insert this straight tube 4-1 and extend to the nozzle of draw 4-2 in straight tube 4-1, straight tube 4-1 is provided with and fluid source The communicating pipe 6 connected;Nozzle includes entrance 4-6, contraction section 4-7 and the expansion segment 4-8 being sequentially connected with, and expansion segment 4-8 is from contraction Section 4-7 bore at a distance is bigger compared with from contraction section 4-7 bore nearby.

In the present embodiment, expansion segment 4-8 is the hollow circular-tube of taper, and the tapering of hollow circular-tube is 70 degree.Certainly hollow circular-tube Tapering can select the arbitrary value between 60-80 degree.

In the present embodiment, the cross section of ceramic wafer 6-2 is along metal tube 6-1 radially the most gradually trapezoidal to contract, adjacent Being also coated with resin glue between the side of ceramic wafer 6-2, it is protruding that the outer surface of ceramics pole 6-3 is provided with uniform graininess.Granule 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.

The present embodiment can also arrange in casing 1 vertical division board 2, overflow pipe 5 and ejector 4 live apart division board 2 Both sides, the water inlet of centrifugal pump 3 and overflow pipe 5 are positioned at the same side of division board 2.Ejector 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 embodiments.The technical scheme that all employing equivalents are formed, is the protection domain of application claims.

Claims (1)

1. a method of work for jet pump, jet pump includes that casing, centrifugal pump and ejector, described ejector are arranged on casing Top, a upper lateral part of described casing is provided with overflow pipe, and the water inlet of described centrifugal pump connects with casing, described centrifugal pump Outlet connects with ejector;Described ejector includes straight tube, the draw, trunnion and the anemostat being sequentially connected with, 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 pipe, 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 Being coated with resin glue between pipe and ceramic wafer, described inner wall of metal tube is provided with counterbore, and described ceramic wafer is provided with and can be inserted into phase Answering the ceramics pole of counterbore, the side in opposite directions of adjacent ceramic plate is shaped with the slip feather and tongue-and-groove matched;Described nozzle includes being sequentially connected with Entrance, contraction section and expansion segment, described expansion segment is bigger compared with from contraction section bore nearby from contraction section bore at a distance;
Described expansion segment is the hollow circular-tube of taper;The tapering of described hollow circular-tube is 60-80 degree;
Described method of work, including: described communicating pipe connects with fluid source (such as water source), and ejector is shape on rear side of jet expansion Becoming region of no pressure, fluid flows to region of no pressure under atmospheric pressure, and mixes with the fluid of ejector ejection, then from overflowing Flow tube flows out, thus realizes the transmission of fluid;
It is protruding that the outer surface of described ceramics pole is provided with uniform graininess.
CN201610882435.2A 2014-08-07 2014-08-07 Reduce the jet pump of liquid flow resistance within communicating pipe CN106286426B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410385197.5A CN104154049B (en) 2014-08-07 2014-08-07 A kind of jet pump
CN201610882435.2A CN106286426B (en) 2014-08-07 2014-08-07 Reduce the jet pump of liquid flow resistance within communicating pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610882435.2A CN106286426B (en) 2014-08-07 2014-08-07 Reduce the jet pump of liquid flow resistance within communicating pipe

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 (2)

Publication Number Publication Date
CN106286426A true CN106286426A (en) 2017-01-04
CN106286426B CN106286426B (en) 2018-03-13

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ID=51879636

Family Applications (5)

Application Number Title Priority Date Filing Date
CN201610882433.3A CN106402045A (en) 2014-08-07 2014-08-07 Jet pump
CN201610882435.2A CN106286426B (en) 2014-08-07 2014-08-07 Reduce the jet pump of liquid flow resistance within communicating pipe
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
CN201610882491.6A CN106286425A (en) 2014-08-07 2014-08-07 Jet pump

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610882433.3A CN106402045A (en) 2014-08-07 2014-08-07 Jet pump

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Application Number Title Priority Date Filing Date
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
CN201610882491.6A CN106286425A (en) 2014-08-07 2014-08-07 Jet pump

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
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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CN2502112Y (en) * 2001-09-26 2002-07-24 沧州市耐磨工程技术研究所 Wear-resisting pipe fitting with ceramic paster
US20040103685A1 (en) * 2002-11-28 2004-06-03 Motohiro Yamaguchi Ejector cycle system
CN2861697Y (en) * 2005-12-15 2007-01-24 襄樊瑞福特电力设备有限公司 Ceramic lining wearable pipe with special structure
CN201059289Y (en) * 2007-06-08 2008-05-14 兖州煤业股份有限公司 Negative pressure generator for bottomless-valve water pump suction pipe
CN201913843U (en) * 2010-12-29 2011-08-03 牟元全 Steel matrix ceramic composite wear-resistant plate
CN202623395U (en) * 2012-05-25 2012-12-26 北京中电联众电力技术有限公司 Inner dovetail type abrasion-resistant ceramic construction member

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JP4506877B2 (en) * 2008-03-12 2010-07-21 株式会社デンソー Ejector
JP4760843B2 (en) * 2008-03-13 2011-08-31 株式会社デンソー Ejector device and vapor compression refrigeration cycle using ejector device
JP5640857B2 (en) * 2011-03-28 2014-12-17 株式会社デンソー Pressure reducing device and refrigeration cycle
CN102275138A (en) * 2011-09-10 2011-12-14 闫俊平 Structure for nozzle of shot-blasting gun
CN202647068U (en) * 2012-05-25 2013-01-02 北京中电联众电力技术有限公司 Splicing-type self-arching abrasion resistant ceramic component
CN103244468B (en) * 2013-04-17 2015-11-04 武汉大学 Injection type jet flow cavitation generator and cavitation cell breaking plant
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* Cited by examiner, † Cited by third party
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
CN2502112Y (en) * 2001-09-26 2002-07-24 沧州市耐磨工程技术研究所 Wear-resisting pipe fitting with ceramic paster
US20040103685A1 (en) * 2002-11-28 2004-06-03 Motohiro Yamaguchi Ejector cycle system
CN2861697Y (en) * 2005-12-15 2007-01-24 襄樊瑞福特电力设备有限公司 Ceramic lining wearable pipe with special structure
CN201059289Y (en) * 2007-06-08 2008-05-14 兖州煤业股份有限公司 Negative pressure generator for bottomless-valve water pump suction pipe
CN201913843U (en) * 2010-12-29 2011-08-03 牟元全 Steel matrix ceramic composite wear-resistant plate
CN202623395U (en) * 2012-05-25 2012-12-26 北京中电联众电力技术有限公司 Inner dovetail type abrasion-resistant ceramic construction member

Also Published As

Publication number Publication date
CN104154049B (en) 2016-10-26
CN106402047A (en) 2017-02-15
CN106286426B (en) 2018-03-13
CN106402045A (en) 2017-02-15
CN104154049A (en) 2014-11-19
CN106286425A (en) 2017-01-04

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Inventor after: Liang Xia

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