CN106286423A - Corrosion resistant jet pump - Google Patents

Corrosion resistant jet pump Download PDF

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Publication number
CN106286423A
CN106286423A CN201610817797.3A CN201610817797A CN106286423A CN 106286423 A CN106286423 A CN 106286423A CN 201610817797 A CN201610817797 A CN 201610817797A CN 106286423 A CN106286423 A CN 106286423A
Authority
CN
China
Prior art keywords
ejector
casing
straight tube
pipe
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.)
Pending
Application number
CN201610817797.3A
Other languages
Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201610817797.3A priority Critical patent/CN106286423A/en
Publication of CN106286423A publication Critical patent/CN106286423A/en
Pending legal-status Critical Current

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
    • F04F5/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/043—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • F04F5/44—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
    • B32B2553/02—Shock absorbing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a kind of corrosion resistant jet pump, including casing, centrifugal 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, the water inlet of described centrifugal pump connects with casing, and the outlet of described centrifugal pump connects with ejector；Described ejector includes straight tube, the draw, trunnion and the anemostat being sequentially connected with, and is provided with and inserts this straight tube and extend to the nozzle of the draw, described straight tube is communicated with pipe, is connected with fluid source after described communicating pipe passing casing in described straight tube；Include earthenware described communicating pipe and be covered on the rubber layer of earthenware perisporium, application of resin glue between described earthenware and rubber layer；Described nozzle includes entrance, contraction section and the expansion segment being sequentially connected with, and described expansion segment is bigger compared with from contraction section bore nearby from contraction section bore at a distance.This jet pump not only has stronger corrosion resistance, and work efficiency is the highest.

Description

Corrosion resistant jet pump
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.
Summary of the invention
The invention solves the problems that and technical problem is that: provide a kind of corrosion resistant jet pump, this jet pump can reduce communicating pipe Replacement cycle, 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 earthenware described communicating pipe and be covered on earthenware The rubber layer of perisporium, application of resin glue between described earthenware and rubber layer；Described nozzle includes entrance, the contraction being sequentially connected with Section and expansion segment, described expansion segment is bigger compared with from contraction section bore nearby from contraction section bore at a distance.
The improvement of technique scheme is: described rubber layer is sticked on group on earthenware perisporium by the sheet rubber being arranged in order Conjunction forms.
Improving further of technique scheme is: described resin glue is epoxide-resin glue.
Preferably, described expansion segment is the hollow circular-tube of 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 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.
The method of work of the above-mentioned jet pump of the present invention, including: in use, described communicating pipe is with fluid source (such as water source) even Logical, ejector forms region of no pressure on rear side of jet expansion, and fluid flows to region of no pressure under atmospheric pressure, and sprays with ejector The fluid gone out mixes, and then flows out from overflow pipe, thus realizes the transmission of fluid.
Due to the fact that employing earthenware, as communicating pipe, directly contacts with the liquid of transmission, makes full use of ceramic surface Smooth and the advantage that easily manufactures, thus reduce the resistance that current flow in runner, improve the efficiency of jet pump, thus Reduce production cost.Owing to pottery has stronger corrosion resistance, thus the present invention uses earthenware as communicating pipe, improves The corrosion resistance of communicating pipe, reduces the replacement frequency of communicating pipe, thus reduce further production cost.It addition, at pottery Pipe perisporium is coated with rubber layer, utilizes high resiliency and the high viscosity of rubber, can make it have good damping and shock-absorbing capacity, Overcome the shortcoming that fragility is big, impact resistance ability is low that pottery is intrinsic, improve the reliability of communicating pipe.
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
The jet pump of the present embodiment is as it is shown in figure 1, include casing 1, centrifugal pump 3 and ejector 4, and ejector 4 is arranged on casing 1 Top, 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 outlet of centrifugal pump 3 with Ejector 4 connects；It is communicated with pipe 6 on ejector 4, is connected with fluid source after communicating pipe 6 passing casing 1.
As in figure 2 it is shown, the present embodiment includes communicating pipe 6 earthenware 6-1 and is covered on the rubber layer 6-of earthenware perisporium 2, it is coated with resin glue between earthenware 6-1 and rubber layer 6-2, resin glue can use epoxide-resin glue.The present embodiment is at pottery Porcelain tube 6-1 perisporium is coated with rubber layer 6-2, utilizes high resiliency and the high viscosity of rubber, can make it have good damping and Shock-absorbing capacity, overcomes the shortcoming that fragility is big, impact resistance ability is low that pottery is intrinsic, improves the reliability of communicating pipe.This enforcement In example, rubber layer 6-2 can use the sheet rubber being arranged in order to stick on earthenware perisporium to combine.
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.
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 earthenware described communicating pipe and be covered on the rubber layer of earthenware perisporium, described pottery Application of resin glue between pipe and rubber layer；Described nozzle includes entrance, contraction section and the expansion segment being sequentially connected with, described expansion segment Bigger compared with from contraction section bore nearby from contraction section bore at a distance；
The method of work of above-mentioned jet pump, including: in use, described communicating pipe connects with fluid source, and ejector goes out at nozzle Forming region of no pressure on rear side of Kou, fluid flows to region of no pressure under atmospheric pressure, and mixes with the fluid of ejector ejection, Then flow out from overflow pipe, thus realize the transmission of fluid；
Being provided with vertical division board, overflow pipe and the both sides of ejector separation division board in casing, the water inlet of centrifugal pump is with excessive Flow tube is positioned at the same side of division board.
CN201610817797.3A 2014-08-07 2014-08-07 Corrosion resistant jet pump Pending CN106286423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610817797.3A CN106286423A (en) 2014-08-07 2014-08-07 Corrosion resistant jet pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410385230.4A CN104265698B (en) 2014-08-07 2014-08-07 A kind of jet pump
CN201610817797.3A CN106286423A (en) 2014-08-07 2014-08-07 Corrosion resistant jet pump

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201410385230.4A Division CN104265698B (en) 2014-08-07 2014-08-07 A kind of jet pump

Publications (1)

Publication Number Publication Date
CN106286423A true CN106286423A (en) 2017-01-04

Family

ID=52157254

Family Applications (7)

Application Number Title Priority Date Filing Date
CN201610817562.4A Pending CN106286421A (en) 2014-08-07 2014-08-07 A kind of corrosion resistant jet pump
CN201610817797.3A Pending CN106286423A (en) 2014-08-07 2014-08-07 Corrosion resistant jet pump
CN201610817798.8A Pending CN106194854A (en) 2014-08-07 2014-08-07 Jet pump
CN201610819076.6A Pending CN106321528A (en) 2014-08-07 2014-08-07 Jet pump
CN201410385230.4A Active CN104265698B (en) 2014-08-07 2014-08-07 A kind of jet pump
CN201610817801.6A Pending CN106194855A (en) 2014-08-07 2014-08-07 The jet pump that efficiency is higher
CN201610817570.9A Pending CN106286422A (en) 2014-08-07 2014-08-07 The jet pump that a kind of efficiency is higher

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610817562.4A Pending CN106286421A (en) 2014-08-07 2014-08-07 A kind of corrosion resistant jet pump

Family Applications After (5)

Application Number Title Priority Date Filing Date
CN201610817798.8A Pending CN106194854A (en) 2014-08-07 2014-08-07 Jet pump
CN201610819076.6A Pending CN106321528A (en) 2014-08-07 2014-08-07 Jet pump
CN201410385230.4A Active CN104265698B (en) 2014-08-07 2014-08-07 A kind of jet pump
CN201610817801.6A Pending CN106194855A (en) 2014-08-07 2014-08-07 The jet pump that efficiency is higher
CN201610817570.9A Pending CN106286422A (en) 2014-08-07 2014-08-07 The jet pump that a kind of efficiency is higher

Country Status (1)

Country Link
CN (7) CN106286421A (en)

Citations (6)

* 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
US20040103685A1 (en) * 2002-11-28 2004-06-03 Motohiro Yamaguchi Ejector cycle system
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
CN201259030Y (en) * 2008-07-31 2009-06-17 襄樊瑞福特电力设备有限公司 Ceramic rubber and ceramoplastic wear resistant composite pipe
CN102275138A (en) * 2011-09-10 2011-12-14 闫俊平 Structure for nozzle of shot-blasting gun
CN103410718A (en) * 2013-08-12 2013-11-27 江苏大学 Multifunctional testing table for property and application of liquid and gas jet pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202065257U (en) * 2011-05-03 2011-12-07 天津市天诚化工有限公司 Ejector vacuum pump system

Patent Citations (6)

* 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
US20040103685A1 (en) * 2002-11-28 2004-06-03 Motohiro Yamaguchi Ejector cycle system
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
CN201259030Y (en) * 2008-07-31 2009-06-17 襄樊瑞福特电力设备有限公司 Ceramic rubber and ceramoplastic wear resistant composite pipe
CN102275138A (en) * 2011-09-10 2011-12-14 闫俊平 Structure for nozzle of shot-blasting gun
CN103410718A (en) * 2013-08-12 2013-11-27 江苏大学 Multifunctional testing table for property and application of liquid and gas jet pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陆宏圻等: "《水电站技术供水可调式射流泵》", 31 January 1992 *

Also Published As

Publication number Publication date
CN104265698A (en) 2015-01-07
CN104265698B (en) 2016-11-23
CN106194855A (en) 2016-12-07
CN106286421A (en) 2017-01-04
CN106321528A (en) 2017-01-11
CN106286422A (en) 2017-01-04
CN106194854A (en) 2016-12-07

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