CN106545496A - Sleeping suction multi-stage pipeline pump - Google Patents
Sleeping suction multi-stage pipeline pump Download PDFInfo
- Publication number
- CN106545496A CN106545496A CN201610858864.6A CN201610858864A CN106545496A CN 106545496 A CN106545496 A CN 106545496A CN 201610858864 A CN201610858864 A CN 201610858864A CN 106545496 A CN106545496 A CN 106545496A
- Authority
- CN
- China
- Prior art keywords
- vacuum cavity
- water
- pump housing
- mandarin
- sleeping
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of sleeping suction multi-stage pipeline pump, including a vacuum cavity, the water inlet for delivery port being provided with the vacuum cavity and being connected with inside cavity cavity, the mechanism that draws water is provided with the vacuum cavity, the mechanism that draws water includes that one is bolted on the pump housing on vacuum cavity, the multi-stage impeller stator mechanism that motor orders about rotation is provided with the pump housing, the pump housing bottom is provided with the bailing outlet positioned at vacuum cavity inner bottom part, the check valve for preventing aqueous reflux from returning vacuum cavity is provided with the bailing outlet, the delivery port of the pump housing is connected with the delivery port of vacuum cavity.This apparatus structure is simple, and lift is high.
Description
Technical field
The present invention relates to a kind of sleeping suction multi-stage pipeline pump.
Background technology
Pump is to occupy the high field of market sale rate, each row, each industry, the family for not having running water including rural area in electronic product
All can't do without quickly being developed in 1983 in 1998 manufacturers with pump, middle-size and small-size pump, export volume accounts for electromechanics
First place in product, is employment, earns foreign exchange and makes very big contribution.
From 9 years, pump industry, without reform and change quick as other products, only increased similar in basic module so far
Type kind or done a little reforms in position therefore pump be by the look of it a kind of very simple product of structure, in fact pump be
A kind of irregular highly difficult product of using area, the purposes of pump are extremely complicated, and application scenario is ever-changing, bear various each
Sample, the liquid of cold and hot thickness, including flow, lift, suction is all each has something to recommend him, kind is numerous and diverse, and versatility is low, brings to pump reform
Very big pump highly difficult, over twenties years does not have the product that high-lighting reform, category electromechanical industries are most fallen behind.
The common product of industrial pump, great majority are all volute type, horizontal machine panel seat, heaviness, occupy, install limited
System, volume big again consumptive material low using loaded down with trivial details, former sleeping MODEL VERTICAL MULTISTAGE PUMP pig iron casting manufacture fluid rate, efficiency is low, no distortion protection
Device, no back-water valve (BWV) equipment, normal leaning in use repeatedly fill liquid vacuum, and start wait steam-water separation is by vacuum of pouring water successively
Ability normal work, after shutdown, distortion sky cisco unity malfunction is poured water once more, the plenty of time is consumed using process again, and
It is loaded down with trivial details.
For existing horizontal pump, need integral device dismounting ability, effort during operating cost when safeguarding.
The content of the invention
The present invention makes improvement for the problem that above-mentioned prior art is present, i.e., the technical problem to be solved is
A kind of sleeping suction multi-stage pipeline pump, simple structure are provided, installing/dismounting safeguards facility, and small flow resistance, lift are high, the scope of application
Extensively.
In order to solve above-mentioned technical problem, a kind of technical scheme of the present invention is：A kind of sleeping suction multi-stage pipeline pump, including
One vacuum cavity, the water inlet for delivery port being provided with the vacuum cavity and being connected with inside cavity cavity, the vacuum
The mechanism that draws water is provided with cavity, the mechanism that draws water includes that one is bolted on the pump housing on vacuum cavity, the pump
The multi-stage impeller stator mechanism that motor orders about rotation is provided with vivo, and the pump housing bottom is provided with vacuum cavity
The bailing outlet of bottom, is provided with the check valve for preventing aqueous reflux from returning vacuum cavity, the delivery port of the pump housing on the bailing outlet
It is connected with the delivery port of vacuum cavity.
Further, the output end of the motor is provided with the rotating shaft of connection multi-stage impeller stator mechanism, on the pump housing
The passage for installing rotating shaft is provided with, is disposed with the passage for being hinged the bearing assembly of rotating shaft, to bearing assembly oil
The outside framework oil seal of envelope, prevent water enter bearing assembly seal, on the channel side wall between the seal and outside framework oil seal
It is provided with osculum.
Further, the multi-stage impeller stator mechanism include multiple impellers being crisscross arranged along water direct of travel successively and
Stator, the impeller order about rotation by motor, and the stator is fixedly installed on the pump housing.
Further, the impeller includes the core wheel set bonded with rotating shaft, along water traveling side on the core wheel set side wall
To become a mandarin oralia and star plate is disposed with, described becoming a mandarin be evenly equipped between oralia and star plate some pieces of directions unanimously in arc
The functional leaf of shape, the oralia that becomes a mandarin include that an internal diameter covers the fairlead of external diameter more than core wheel, at the top of the fairlead lateral wall
Be provided with V-shaped interior low outer high annular slab, it is described become a mandarin oralia and star plate external diameter it is equal, the star plate the week side of boss is uniform
There are several grooves, the quantity of the functional leaf is equal with number of recesses, the functional leaf is by two pieces of arc tangent connections
Into, the arc radius positioned at inner side is less than outer arcuate plate internal diameter, and described functional leaf the inner closes on fairlead, its outer end with enter
Head piece plate outer end wall is concordant, and it is curved wall that the star plate groove closes on the side wall of functional leaf, the curved wall be located at
The arc in outside is concentric circles segmental arc, so as to water is flowed into Jing after functional leaf accelerates from fairlead throw away from star plate groove.
Further, the stator include tubular every level set, it is described to be disposed with along water direct of travel in level set
The equal deflector of internal diameter and the plate that becomes a mandarin are covered with every level, the deflector and becoming a mandarin be provided between plate several towards consistent
Arc water conservancy diversion leaf, is provided with the centre bore for allowing rotating shaft to pass through in the middle part of the deflector, the deflector periphery is evenly equipped with several
Around the through hole of centre bore, the through hole back-end is provided with the guide channel being disposed radially, along water at the top of the guide channel
Direct of travel is raised successively, and in outer low and inner high circular slanting ramp shaped, the through hole closes on outside water conservancy diversion leaf madial wall the deflector
End is arranged, and guide channel madial wall is concentric circles segmental arc with adjacent guide leaf lateral wall, and the plate that becomes a mandarin is in high outside and low outside leakage
It is bucket-shaped, circular hole of the internal diameter more than rotating shaft is provided with the middle part of which, the bore inner diameter is equal with fairlead external diameter, outside the water conservancy diversion leaf
End is concordant with the outside of deflector, flush on the inside of its inner and plate that becomes a mandarin, so that water enters via through holes by water conservancy diversion from guide channel
From the plate circular hole outflow that becomes a mandarin after leaf guiding.
Further, removable sleeve pipe is provided between the pump housing and vacuum cavity, between described sleeve pipe and the pump housing,
Junction between sleeve pipe and vacuum cavity is provided with sealing ring.
Further, the pump housing also includes upper pump cover and lower pump cover, and the multi-stage impeller stator mechanism is arranged on upper pump
Between lid and lower pump cover, on the pump housing, its underpart contact is in the top every level set for the upper outer edge contact of the upper pump cover
Top, the lower pump cover upper outer edge contact cover bottom every level in bottom, and the lower pump cover is locked at the pump housing by bolt
On.
Further, pour water plug screw and bleed screw are provided with the pump housing.
Further, adpting flange is provided with the water inlet and delivery port of the vacuum cavity.
Further, the vacuum cavity bottom is provided with base.
Compared with prior art, the invention has the advantages that：This apparatus structure is simple, and installing/dismounting is safeguarded just
Profit, keeps environment in vacuum, reduces the formality that exhaust is poured water when using, and multi-stage impeller design, lift are high, and small flow resistance is fitted
It is wide with scope.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Description of the drawings
Organigrams of the Fig. 1 for the embodiment of the present invention.
Organigrams of the Fig. 2 for embodiment of the present invention middle pump body.
Fig. 3 is the construction schematic front view of impeller in the embodiment of the present invention.
Construction diagrammatic top views of the Fig. 4 for embodiment of the present invention impeller.
Fig. 5 is the organigram of star plate in the embodiment of the present invention.
Fig. 6 is the construction schematic front view of stator in the embodiment of the present invention.
Fig. 7 is the construction diagrammatic bottom view of stator in the embodiment of the present invention.
Fig. 8 is A-A sectional views in Fig. 7.
In figure：The 1- pump housings, 11- pump housing clamping screws, 12- bleed screws, 13- are poured water plug screw, and 14- bearing assemblies, 15- are close
Sealing, 16- sleeve pipes, 17- passages, 18- osculums, the delivery port of the 19- pump housings, 2- vacuum cavities, 21- vacuum cavity water inlets,
22- vacuum cavity delivery ports, 23- bases, 3- motors, 31- rotating shafts, the upper pump covers of 4-, pump cover under 41-, 42- check valves, pump under 43-
Cover locking bolt, 5- impellers, 51- core wheel sets, 52- functional leafs, 6- stators, every level set, 62-'s 61- becomes a mandarin plate, 63- water conservancy diversion leaves, 7-
Star plate, 71- grooves, 8- become a mandarin oralia, 81- fairleads, 9- deflectors, 91- guide channels, 92- through holes.
Specific embodiment
Embodiment one：As shown in Fig. 1 ~ 8, a kind of sleeping suction multi-stage pipeline pump, including a vacuum cavity 2, the vacuum chamber
The water inlet 21 for delivery port 22 being provided with body 2 and being connected with inside cavity cavity, is provided with the vacuum cavity and is drawn water
Mechanism, the mechanism that draws water include the pump housing 1 being fixed on vacuum cavity by bolt 11, are provided with logical in the pump housing 1
The multi-stage impeller stator mechanism that motor orders about rotation is crossed, the pump housing bottom is provided with drawing water positioned at vacuum cavity inner bottom part
Mouthful, the check valve 42 for preventing aqueous reflux from returning vacuum cavity, the delivery port 19 of the pump housing and vacuum are provided with the bailing outlet
The delivery port 22 of cavity is connected.The check valve ensure that the water in the pump housing will not flow backwards, and cause in vacuum cavity because flowing backwards
And there is air, can directly initiate when using next time, it is not necessary to which exhaust again is poured water.
In the present embodiment, the output end of the motor is provided with the rotating shaft 31 of connection multi-stage impeller stator mechanism, the pump
The passage 17 for installing rotating shaft is provided with body, is disposed with the passage for being hinged the bearing assembly 14 of rotating shaft, to axle
The outside framework oil seal of bearing assembly oil sealing, prevent water enter bearing assembly seal 15, between the seal and outside framework oil seal
Osculum 18 is provided with channel side wall.In the face of the rotating shaft of high-speed rotation, once seal is damaged, water is entered along rotating shaft, axle
The oil sealing of bearing assembly e insufficient to ensure that water is not entered in bearing assembly, inevitably results in bearing assembly and get rusty corrosion, Jin Erying
Ring the life-span of whole equipment, the design of the osculum, when seal can be made to occur damaged, the water along rotating shaft entrance is from the draining
Hole is expelled directly out, it is to avoid the possibility that bearing assembly gets wet.
In the present embodiment, the multi-stage impeller stator mechanism includes multiple impellers being crisscross arranged along water direct of travel successively
5 and stator 6, the impeller orders about rotation by motor, and the stator is fixedly installed on the pump housing.By impeller and the phase of stator
Mutually coordinate so that the lift of water pump is higher.
In the present embodiment, the impeller 5 includes the core wheel set 51 bonded with rotating shaft, along water row on the core wheel set side wall
Enter direction and be disposed with become a mandarin oralia 8 and star plate 7, some pieces of directions that be evenly equipped between oralia 8 and star plate 7 that become a mandarin
Consistent curved functional leaf 52, the oralia 8 that becomes a mandarin include that an internal diameter covers the fairlead 81 of external diameter, the guiding more than core wheel
Be provided with V-shaped interior low outer high annular slab at the top of set lateral wall, it is described become a mandarin oralia and star plate external diameter it is equal, the star
7 the week side of boss of shape plate is evenly equipped with several grooves 71, and the quantity of the functional leaf is equal with number of recesses, and the functional leaf is by two pieces of arcs
Shape plate is tangent to be formed by connecting, and the arc radius positioned at inner side is less than outer arcuate plate internal diameter, and being designed with for the shape is beneficial to subtract
Weep resistance, improves charging efficiency.Fairlead is closed in described functional leaf the inner, and its outer end is concordant with the oralia outer end wall that becomes a mandarin,
It is curved wall that the star plate groove closes on the side wall of functional leaf, and the curved wall is concentric with the arc positioned at outside
Arc section, the design of those arcs are conducive to reducing resistance to water-flow, so that water is flowed into Jing after functional leaf accelerates from star from fairlead
Shape plate groove throws away.The design of star plate so that the difference that this impeller is present with traditional double shrouded wheel, current are recessed from star plate
Stator is escaped and enter at groove, is conducive to increasing pressure to water, is improved lift.
In the present embodiment, the stator 6 include tubular every level cover 61, it is described every level set in set along water direct of travel successively
Be equipped with and the equal deflector 9 of internal diameter and the plate 62 that becomes a mandarin covered with every level, the deflector 9 and to become a mandarin and be provided with several between plate 62
Towards consistent arc water conservancy diversion leaf 63, the centre bore for allowing rotating shaft to pass through, the deflector periphery in the middle part of the deflector, are provided with
Several through holes 92 around centre bore are evenly equipped with, the through hole back-end is provided with the guide channel 91 being disposed radially, described
Raised along water direct of travel successively at the top of guide channel, in outer low and inner high circular slanting ramp shaped, the through hole faces the deflector
Nearly water conservancy diversion leaf madial wall outer end is arranged, and guide channel madial wall and adjacent guide leaf lateral wall are concentric circles segmental arc, and the structure sets
Walk on current direction in respect of benefiting, and be conducive to current from outer lateral intermediate flow, the plate that becomes a mandarin is in high outside and low outside funnel-form,
Circular hole of the internal diameter more than rotating shaft is provided with the middle part of which, the bore inner diameter is equal with fairlead external diameter, the water conservancy diversion leaf outer end and
It is concordant on the outside of deflector, flush on the inside of its inner and plate that becomes a mandarin, so that water is drawn by water conservancy diversion leaf from guide channel into via through holes
From the plate circular hole outflow that becomes a mandarin after leading.
In the present embodiment, removable sleeve pipe 16, described sleeve pipe and pump between the pump housing 1 and vacuum cavity 2, are provided with
Junction between body, between sleeve pipe and vacuum cavity is provided with sealing ring.If necessary to increase during impeller vane, it is only necessary to
Change longer sleeve pipe and clamping screw, it is not necessary to change other parts.And then can accomplish to adjust as needed to raise
Journey.
In the present embodiment, the pump housing 1 also includes upper pump cover 4 and lower pump cover 41, and the multi-stage impeller stator mechanism installs
Between upper pump cover and lower pump cover, on the pump housing, its underpart contact is in the top for the upper outer edge contact of the upper pump cover
Top is covered every level, the lower pump cover upper outer edge contact covers bottom every level in bottom, and the lower pump cover is locked by bolt 43
Tightly on the pump housing.The check valve is arranged on lower pump cover, and adjacent is provided with sealing ring between level set.
In the present embodiment, pour water plug screw 13 and bleed screw 12 on the pump housing, are provided with.
In the present embodiment, on the water inlet and delivery port of the vacuum cavity, adpting flange is provided with
In the present embodiment, the vacuum cavity bottom is provided with base 23.
It is during use, floor installation is good, the water inlet of water pump is connected with water delivery end, by pump outlet with set with water
It is standby to be connected, water pump is opened, the air in vacuum cavity and the pump housing is discharged by the rotation of multi-stage impeller stator mechanism, and water is from unidirectional
Valve enters the pump housing, is thrown away from star plate groove upwards Jing after impeller central is entered, functional leaf accelerates, and the water for throwing away is along stator
Guide channel is entered, is flowed out Jing after the guiding of water conservancy diversion leaf from the plate circular hole outflow that becomes a mandarin, after flowing through multiple impeller vanes successively from through hole
Discharge from pump housing delivery port.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of sleeping suction multi-stage pipeline pump, it is characterised in that：Including a vacuum cavity, on the vacuum cavity, water outlet is provided with
Mouth and the water inlet being connected with inside cavity cavity, are provided with the mechanism that draws water, the mechanism's bag that draws water in the vacuum cavity
The pump housing being bolted on vacuum cavity is included, the multi-stage impeller that motor orders about rotation in the pump housing, is provided with
Stator mechanism, the pump housing bottom are provided with the bailing outlet positioned at vacuum cavity inner bottom part, and being provided with the bailing outlet prevents
Aqueous reflux returns the check valve of vacuum cavity, and the delivery port of the pump housing is connected with the delivery port of vacuum cavity.
2. sleeping suction multi-stage pipeline pump according to claim 1, it is characterised in that：The output end of the motor is provided with company
The rotating shaft of multi-stage impeller stator mechanism is connect, the passage for installing rotating shaft is provided with the pump housing, is disposed with the passage
For being hinged the bearing assembly of rotating shaft, the outside framework oil seal to bearing assembly oil sealing, preventing water from entering the seal of bearing assembly, institute
State osculum is provided with the channel side wall between seal and outside framework oil seal.
3. sleeping suction multi-stage pipeline pump according to claim 1 and 2, it is characterised in that：The multi-stage impeller stator mechanism
Including multiple impellers being crisscross arranged along water direct of travel successively and stator, the impeller orders about rotation by motor, described to lead
Leaf is fixedly installed on the pump housing.
4. sleeping suction multi-stage pipeline pump according to claim 3, it is characterised in that：The impeller includes bonded with rotating shaft
Core wheel set, be disposed with become a mandarin oralia and star plate, the oralia that becomes a mandarin along water direct of travel on core wheel set side wall
Some pieces are evenly equipped with and star plate between towards consistent curved functional leaf, the oralia that becomes a mandarin includes that an internal diameter is more than core wheel
The fairlead of set external diameter, is provided with V-shaped interior low outer high annular slab, the oralia that becomes a mandarin at the top of the fairlead lateral wall
Equal with star plate external diameter, the star plate the week side of boss is evenly equipped with several grooves, quantity and the number of recesses phase of the functional leaf
It is formed by connecting by two pieces of arcs are tangent Deng, the functional leaf, the arc radius positioned at inner side is less than outer arcuate plate internal diameter,
Fairlead is closed in described functional leaf the inner, and its outer end is concordant with the oralia outer end wall that becomes a mandarin, and the star plate groove closes on functional leaf
Side wall be curved wall, the curved wall be located at outside arc be concentric circles segmental arc so that water is from fairlead stream
Enter Jing after functional leaf accelerates and throw away from star plate groove.
5. sleeping suction multi-stage pipeline pump according to claim 4, it is characterised in that：The stator include tubular every level
Set, described being disposed with along water direct of travel in level set cover the equal deflector of internal diameter and the plate that becomes a mandarin with every level, described to lead
Flow plate and become a mandarin and several are provided between plate towards consistent arc water conservancy diversion leaf, be provided with the middle part of the deflector and allow rotating shaft to wear
The centre bore crossed, the deflector periphery are evenly equipped with several through holes around centre bore, and the through hole back-end is provided with along footpath
To the guide channel for arranging, raised along water direct of travel successively at the top of the guide channel, the deflector is in outer low and inner high
Circular slanting ramp shaped, the through hole close on the setting of water conservancy diversion leaf madial wall outer end, guide channel madial wall and adjacent guide leaf lateral wall
For concentric circles segmental arc, the plate that becomes a mandarin is provided with circular hole of the internal diameter more than rotating shaft in high outside and low outside funnel-form in the middle part of which, described
Bore inner diameter is equal with fairlead external diameter, and the water conservancy diversion leaf outer end is concordant with the outside of deflector, its it is inner with the plate that becomes a mandarin on the inside of phase
Concordantly, so that water is flowed out from the plate circular hole that becomes a mandarin after being guided by water conservancy diversion leaf from guide channel into via through holes.
6. sleeping suction multi-stage pipeline pump according to claim 5, it is characterised in that：Set between the pump housing and vacuum cavity
Removable sleeve pipe is equipped with, the junction between described sleeve pipe and the pump housing, between sleeve pipe and vacuum cavity is provided with sealing ring.
7. sleeping suction multi-stage pipeline pump according to claim 6, it is characterised in that：The pump housing also includes upper pump cover with
Pump cover, the multi-stage impeller stator mechanism are arranged between upper pump cover and lower pump cover, the upper outer edge contact of the upper pump cover
On the pump housing, its underpart contact covers top every level in the top, and the lower pump cover upper outer edge contact is in bottom every level
Set bottom, the lower pump cover are locked on the pump housing by bolt.
8. sleeping suction multi-stage pipeline pump according to claim 1, it is characterised in that：Plug screw of pouring water is provided with the pump housing
And bleed screw.
9. sleeping suction multi-stage pipeline pump according to claim 1, it is characterised in that：The water inlet of the vacuum cavity and go out
Adpting flange is provided with the mouth of a river.
10. sleeping suction multi-stage pipeline pump according to claim 1, it is characterised in that：The vacuum cavity bottom is provided with
Base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858864.6A CN106545496B (en) | 2016-09-29 | 2016-09-29 | Sleeping suction multi-stage pipeline pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858864.6A CN106545496B (en) | 2016-09-29 | 2016-09-29 | Sleeping suction multi-stage pipeline pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106545496A true CN106545496A (en) | 2017-03-29 |
| CN106545496B CN106545496B (en) | 2018-11-27 |
Family
ID=58368144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610858864.6A Active CN106545496B (en) | 2016-09-29 | 2016-09-29 | Sleeping suction multi-stage pipeline pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106545496B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286524A (en) * | 2018-03-31 | 2018-07-17 | 合肥合博机电有限公司 | A kind of pipeline pump with self-suction function |
| CN108419649A (en) * | 2018-05-17 | 2018-08-21 | 扬州马格斯科技有限公司 | A kind of water drawing device |
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| EP0664398A1 (en) * | 1994-01-21 | 1995-07-26 | WILO GmbH | Centrifugal pump with backflow prevention valve |
| CN2374671Y (en) * | 1999-04-09 | 2000-04-19 | 升川机电有限公司 | liquid delivery device |
| EP1178212A3 (en) * | 2000-08-03 | 2005-08-31 | Claber S.P.A. | Water cooled centrifugal pump |
| CN2869392Y (en) * | 2006-01-25 | 2007-02-14 | 四川省自贡工业泵有限责任公司 | Vertical self-priming pump |
| CN101514704A (en) * | 2008-02-18 | 2009-08-26 | 李正奇 | Mining multistage clear water centrifugal pump |
| CN201574939U (en) * | 2009-12-04 | 2010-09-08 | 开利泵业(集团)有限公司 | Multistage centrifugal pump |
| CN103089654A (en) * | 2011-11-08 | 2013-05-08 | 上海冠民电机电泵有限公司 | Novel low suction pump |
| CN204921462U (en) * | 2015-09-02 | 2015-12-30 | 浙江东音泵业股份有限公司 | Impeller |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664398A1 (en) * | 1994-01-21 | 1995-07-26 | WILO GmbH | Centrifugal pump with backflow prevention valve |
| CN2374671Y (en) * | 1999-04-09 | 2000-04-19 | 升川机电有限公司 | liquid delivery device |
| EP1178212A3 (en) * | 2000-08-03 | 2005-08-31 | Claber S.P.A. | Water cooled centrifugal pump |
| CN2869392Y (en) * | 2006-01-25 | 2007-02-14 | 四川省自贡工业泵有限责任公司 | Vertical self-priming pump |
| CN101514704A (en) * | 2008-02-18 | 2009-08-26 | 李正奇 | Mining multistage clear water centrifugal pump |
| CN201574939U (en) * | 2009-12-04 | 2010-09-08 | 开利泵业(集团)有限公司 | Multistage centrifugal pump |
| CN103089654A (en) * | 2011-11-08 | 2013-05-08 | 上海冠民电机电泵有限公司 | Novel low suction pump |
| CN204921462U (en) * | 2015-09-02 | 2015-12-30 | 浙江东音泵业股份有限公司 | Impeller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286524A (en) * | 2018-03-31 | 2018-07-17 | 合肥合博机电有限公司 | A kind of pipeline pump with self-suction function |
| CN108286524B (en) * | 2018-03-31 | 2023-12-29 | 浙江日井泵业股份有限公司 | Pipeline pump with self-priming function |
| CN108419649A (en) * | 2018-05-17 | 2018-08-21 | 扬州马格斯科技有限公司 | A kind of water drawing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106545496B (en) | 2018-11-27 |
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