CN106438377B - Vertical multi-stage bivalve centrifugal pump and its application method - Google Patents
Vertical multi-stage bivalve centrifugal pump and its application method Download PDFInfo
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- CN106438377B CN106438377B CN201610863272.3A CN201610863272A CN106438377B CN 106438377 B CN106438377 B CN 106438377B CN 201610863272 A CN201610863272 A CN 201610863272A CN 106438377 B CN106438377 B CN 106438377B
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- pump housing
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- bivalve
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- 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
- F04D1/063—Multi-stage pumps of the vertically split casing type
- F04D1/066—Multi-stage pumps of the vertically split casing type the casing consisting of a plurality of annuli bolted together
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2294—Rotors specially for centrifugal pumps with special measures for protection, e.g. against abrasion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
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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 vertical multi-stage bivalve centrifugal pump and its application methods, the vacuum cavity of water inlet is provided with including bottom, the mechanism that draws water is provided in the vacuum cavity, the mechanism that draws water includes the pump housing, water outlet is provided on the pump housing, the multi-stage impeller guide vane mechanism that rotation is driven via motor is provided in the pump housing, the bottom of the pump housing is provided with the bailing outlet of the bottom in vacuum cavity, and the first check valve for preventing aqueous reflux from returning vacuum cavity is provided on the bailing outlet.The present invention is not only simple in structure, lift is high, and effectively keeps environment in vacuum, and anti-water-stop body flows back.
Description
Technical field：
The present invention relates to a kind of vertical multi-stage bivalve centrifugal pump and its application methods.
Background technique：
Pump is to occupy the high field of market sale rate in electronic product, and each row, does not have the family of tap water including rural area at each industry
All it can't do without with pump, middle-size and small-size pump in 1983 in 1998 manufacturers quickly develop, export volume accounts for electromechanics
It earns foreign exchange for employment and makes very big contribution in first place in product.
From 9 years, pump industry only increased in basic module similar without reform and change quick as other products so far
Type kind or a little reforms have been done in position, therefore pump is a kind of very simple product of structure by the look of it, pump is in fact
A kind of irregular highly difficult product of using area, the purposes of pump is extremely complicated, and application is ever-changing, bears various each
Sample, the liquid of cold and hot thickness, including flow, lift, suction is all each has something to recommend him, kind is many and diverse, and versatility is low, brings to pump reform
It is very big it is highly difficult, over twenties years pump no high-lighting reform, belong to the product that electromechanical industries are most fallen behind.
The common product of industrial pump, it is most of be all volute type, horizontal machine panel seat, heaviness, occupy, install and be 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, without distortion protection
Device, without back-water valve (BWV) equipment, often in use by repeatedly filling liquid vacuum, booting waits steam-water separation by vacuum of pouring water successively
It could work normally, loss of vacuum cisco unity malfunction is poured water once more again after shutdown, use process consumes the plenty of time, again
It is loaded down with trivial details；It is higher to the requirement of water pump especially in field of aerospace, it is easy to cause safety accident if there is liquid reflux, it is existing
Water pump often carry out anti-backflow only with single valve, security performance is insufficient.
Summary of the invention：
The purpose of the present invention is to provide a kind of vertical multi-stage bivalve centrifugal pump and its application method, not only design rationally,
Structure is simple, and small flow resistance, lift are high, applied widely.
To achieve the goals above, the technical solution adopted by the present invention is that：A kind of vertical multi-stage bivalve centrifugal pump, including bottom
Portion is provided with the vacuum cavity of water inlet, the mechanism that draws water is provided in the vacuum cavity, the mechanism that draws water includes the pump housing, institute
It states and is provided with water outlet on the pump housing, the multi-stage impeller guide vane mechanism for driving rotation via motor is provided in the pump housing, it is described
The bottom of the pump housing is provided with the bailing outlet of the bottom in vacuum cavity, and being provided on the bailing outlet prevents aqueous reflux from returning vacuum
First check valve of cavity.
Further, the output end of above-mentioned motor is provided with the shaft of connection multi-stage impeller guide vane mechanism, on the pump housing
It is provided with the channel of installation shaft, the bearing assembly for hinged shaft is disposed on the channel, to bearing assembly oil
The outside framework oil seal of envelope prevents water from entering the sealing element of bearing assembly, on the channel side wall between the sealing element and outside framework oil seal
It is provided with drainage hole.
Further, above-mentioned multi-stage impeller guide vane mechanism include multiple impellers being successively staggered along water direction of travel and
Guide vane, the impeller drive rotation by motor, and the guide vane is fixed on the pump housing.
Further, above-mentioned impeller 5 includes the core wheel set 51 with shaft key connection, is advanced on the core wheel set side wall along water
Direction is disposed with become a mandarin oralia 8 and star plate 7, and described become a mandarin is evenly equipped with several pieces of directions one between oralia 8 and star plate 7
Arc-shaped functional leaf 52 is caused, the oralia 8 that becomes a mandarin includes the guide sleeve 81 that an internal diameter is greater than core wheel set outer diameter, the guide sleeve
Be provided with V-shaped interior low outer high annular slab at the top of lateral wall, it is described become a mandarin oralia and star plate outer diameter it is equal, the star
7 side of 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
Plate is tangent to be formed by connecting, and the arc panel radius positioned inside is less than outer arcuate plate internal diameter, and the design of the shape is conducive to reduce
Resistance to water-flow improves charging efficiency.Guide sleeve is closed in the functional leaf inner end, and outer end is concordant with the oralia outer end wall that becomes a mandarin, institute
Stating star plate groove to close on the one side wall of functional leaf is curved wall, which is concentric circles with the arc panel for being located at outside
Segmental arc, the design of those arcs are conducive to reduce resistance to water-flow, so that water flows into after functional leaf accelerates from guide sleeve from star
Plate groove is thrown away.The design of star plate, so that difference existing for this impeller and traditional double shrouded wheel, water flow is from star plate groove
Place escapes and enter guide vane, is conducive to increase pressure to water, improves lift.
Further, above-mentioned guide vane 6 includes tubular every grade set 61, described to set gradually in grade covers along water direction of travel
Have and covered every grade and the equal deflector 9 of internal diameter and enter flowing plate 62, the deflector 9 and enters to be provided with several courts between flowing plate 62
To consistent arc water conservancy diversion leaf 63, it is provided with the centre bore for allowing shaft to pass through in the middle part of the deflector, the deflector periphery is equal
Several through-holes 92 around centre bore are furnished with, the through hole back-end is provided with the guide channel 91 being disposed radially, described to lead
It is successively increased to channel roof along water direction of travel, the deflector is in outer low and inner high circular slanting ramp shaped, and the through-hole closes on
The setting of water conservancy diversion leaf inner sidewall outer end, guide channel inner sidewall and adjacent guide leaf lateral wall are concentric circles segmental arc, structure design
Be beneficial to water flow to walk upwards, and be conducive to water flow from outer side to intermediate flow, it is described enter flowing plate be in high outside and low outside funnel-form,
Middle part be provided with internal diameter be greater than shaft circular hole, the bore inner diameter is equal with guide sleeve outer diameter, water conservancy diversion leaf outer end with lead
It is concordant on the outside of flowing plate, inner end and enter flush on the inside of flowing plate, is guided so that water enters via through holes from guide channel by water conservancy diversion leaf
Afterwards from enter flowing plate circular hole outflow.
Further, above-mentioned vacuum cavity includes the cylinder for covering bailing outlet, and upper end and the pump housing of the cylinder are connected to each other,
The lower end of the cylinder is provided with lower cover, water inlet is provided on the lower lid, being provided on the water inlet prevents aqueous reflux
The second one-way valve of water end (W.E.) is fed back, is provided with pedestal on the lower lid.
Further, it is provided with pour water plug screw and bleed screw on the above-mentioned pump housing, is additionally provided on the pump housing to pacify
Fill the motor cabinet of motor.
Further, connecting flange is provided on above-mentioned water outlet.
Further, the above-mentioned pump housing further includes upper pump cover and lower pump cover, and multi-stage impeller guide vane mechanism is mounted on pump
Between lid and lower pump cover, the upper outer edge contact of the upper pump cover is on the pump housing, and its underpart contact is in the top every grade set
Top, the lower pump cover upper outer edge contact cover lower part every grade in bottom, and the lower pump cover is locked at the pump housing by bolt
On.
In order to solve the above-mentioned technical problem, another technical solution of the invention is：A kind of such as above-mentioned vertical multi-stage is double
The application method of valve centrifugal pump：The water inlet of water pump is connected with water delivery end, the water outlet of water pump is connected with water equipment
Connect, open water pump, the rotation of multi-stage impeller guide vane mechanism by vacuum cavity and pumps intracorporal air and is discharged, water via check valve into
Enter the pump housing, enter through impeller center, functional leaf is thrown away after accelerating from star plate groove upwards, guiding of the water thrown away along guide vane
Through slot enter, from through-hole outflow through water conservancy diversion leaf guidance after from enter flowing plate circular hole outflow, followed by after multiple impeller vanes from pump
The discharge of body water outlet.
Compared with prior art, the invention has the advantages that：Present apparatus structure is simple, keeps environment in vacuum,
The formality for being vented and pouring water when using is reduced, multi-stage impeller design, lift is high, and small flow resistance is applied widely；Double a check valves
Setting, effectively avoids liquid reflux, and safety is more preferable, and when water pump is shut down, can make still to keep vacuum state in water pump, under
Air-discharging of pouring water is no longer needed to when first use, work efficiency is high.
Detailed description of the invention：
Fig. 1 is organigram of the invention；
Fig. 2 is the organigram of the pump housing；
Fig. 3 is the construction schematic front view of impeller；
Fig. 4 is the construction diagrammatic top view of impeller；
Fig. 5 is the organigram of star plate；
Fig. 6 is the construction schematic front view of guide vane；
Fig. 7 is the construction diagrammatic bottom view of middle guide vane；
Fig. 8 is A-A cross-sectional view in Fig. 7.
In figure：The 1- pump housing；11- water outlet；12- connecting flange；13- bearing assembly；14- sealing element；15- drains plug screw；
16- pours water plug screw；17- drainage hole；The channel 18-；2- cylinder；21- water inlet；22- lower cover；23- pedestal；25- drains plug screw；3-
Motor；31- motor cabinet；32- shaft；The first check valve of 4-；5- impeller；51- core wheel set；52- functional leaf；6- guide vane；61- is every grade
Set；62- enters flowing plate；63- water conservancy diversion leaf；7- star plate；71- groove；8- becomes a mandarin oralia；81- guide sleeve；9- deflector；91- guiding
Channel；92- through-hole；10- second one-way valve；The upper pump cover of 101-；Pump cover under 102-.
Specific embodiment:
As shown in Fig. 1 ~ 8, a kind of vertical multi-stage bivalve centrifugal pump of the present invention is provided with the vacuum chamber of water inlet including bottom
Body is provided with the mechanism that draws water in the vacuum cavity, and the mechanism that draws water includes the pump housing 1, is provided with water outlet on the pump housing 1
11, the multi-stage impeller guide vane mechanism that rotation is driven via motor 3 is provided in the pump housing 1, and the bottom of the pump housing 1 is provided with
The bailing outlet of bottom in vacuum cavity is provided with the first check valve for preventing aqueous reflux from returning vacuum cavity on the bailing outlet
4, which ensure that the water in the pump housing 1 will not be flow backwards, cause in vacuum cavity because flow backwards and there are air, under
It can be directly initiated when secondary use, the exhaust not needed again is poured water.
In the present embodiment, the output end of above-mentioned motor 3 is provided with the shaft 32 of connection multi-stage impeller guide vane mechanism, the pump
It is provided with the channel 18 of installation shaft 32 on body 1, the bearing assembly for hinged shaft 32 is disposed on the channel 18
13, to the outside framework oil seal of 13 oil sealing of bearing assembly, prevent water from entering the sealing element 14 of bearing assembly 13, the sealing element 14 and bone
Drainage hole 17 is provided on channel side wall between frame oil sealing, in face of the shaft 32 of high-speed rotation, once sealing element 14 is damaged, water
Enter along shaft 32, the oil sealing of bearing assembly 13 is not sufficient to guarantee that water does not enter in bearing assembly 13, inevitably results in axis
Bearing assembly 13 gets rusty corrosion, and then influences the service life of whole equipment, the design of the drainage hole 17, sealing element 14 can be made to occur broken
When damage, the water entered along shaft 32 is expelled directly out from the drainage hole 17, avoids a possibility that bearing assembly 13 gets wet.
In the present embodiment, above-mentioned multi-stage impeller guide vane mechanism includes multiple impellers being successively staggered along water direction of travel
5 and guide vane 6, the impeller 5 drives rotation by motor 3, and the guide vane 6 is fixed on the pump housing 1, by impeller 5 with lead
The mutual cooperation of leaf 6, so that the lift of water pump is higher.
In the present embodiment, above-mentioned impeller 5 of stating includes the core wheel set 51 with shaft key connection, and the core wheel covers on side wall along water
Direction of travel is disposed with become a mandarin oralia 8 and star plate 7, and described become a mandarin is evenly equipped with several pieces of courts between oralia 8 and star plate 7
To consistent arc-shaped functional leaf 52, the oralia 8 that becomes a mandarin includes the guide sleeve 81 that an internal diameter is greater than core wheel set outer diameter, described to lead
It is provided with low outer high annular slab in V-shaped at the top of to 81 lateral walls of set, the oralia 8 that becomes a mandarin is equal with 7 outer diameter of star plate,
7 side of star plate is evenly equipped with several grooves 71, and the quantity of the functional leaf 52 is equal with 71 quantity of groove, the function
Leaf 52 is formed by connecting by two pieces of arc panels are tangent, and the arc panel radius positioned inside is less than outer arcuate plate internal diameter, the shape
Design is conducive to reduce resistance to water-flow, improves charging efficiency.Guide sleeve 81 is closed in 52 inner end of functional leaf, outer end with become a mandarin
8 outer end wall of oralia is concordant, 7 groove 71 of star plate close on functional leaf 52 one side wall be curved wall, the curved wall with
Arc panel positioned at outside is concentric circles segmental arc, and the design of those arcs is conducive to reduce resistance to water-flow, so that water is from guide sleeve
81 inflows are thrown away after the acceleration of functional leaf 52 from star plate groove 71.The design of star plate 7, so that this impeller 5 is closed with traditional
Difference existing for formula impeller, water flow escape and enter guide vane 6 from star plate groove 71, are conducive to increase pressure to water, improve
Lift.
In the present embodiment, above-mentioned guide vane 6 include tubular every grade cover 61, it is described every grade set 61 in along water direction of travel successively
It is provided with and is covered every grade and the equal deflector 9 of 61 internal diameters and enter flowing plate 62, if the deflector 9 and entering is provided between flowing plate 62
Dry towards consistent arc water conservancy diversion leaf 63, is provided with the centre bore for allowing shaft 32 to pass through, the water conservancy diversion in the middle part of the deflector 9
9 periphery of plate is evenly equipped with several through-holes 92 around centre bore, and it is logical that 92 rear end of through-hole is provided with the guiding being disposed radially
Road 91,91 top of guide channel are successively increased along water direction of travel, and the deflector 9 is in outer low and inner high annular ramp
Shape, the through-hole 92 close on the setting of water conservancy diversion leaf inner sidewall outer end, and 91 inner sidewall of guide channel and adjacent guide leaf lateral wall are same
Heart arc section, structure design are beneficial to water flow and walk upwards, and are conducive to water flow from outer side to intermediate flow, it is described enter flowing plate 62
In high outside and low outside funnel-form, the middle part is provided with the circular hole that internal diameter is greater than shaft 32, outside the bore inner diameter and guide sleeve 81
Diameter is equal, and 9 outside of 63 outer end of water conservancy diversion leaf and deflector is concordant, inner end with enter 62 inside flush of flowing plate so that water from
Guide channel 91 enter via through holes 92 by water conservancy diversion leaf 63 guide after from enter 62 circular hole of flowing plate outflow.
In the present embodiment, above-mentioned vacuum cavity includes the cylinder 2 for covering bailing outlet, upper end and 1 phase of the pump housing of the cylinder 2
Docking, the lower end of the cylinder 2 is provided with lower cover 22, water inlet 21 is provided on the lower cover 22, is set on the water inlet 21
It is equipped with the second one-way valve 10 for preventing aqueous reflux from feeding back water end (W.E.), is provided with pedestal 23, lower cover 22 and pedestal 23 on the lower cover 22
Separately design is conducive to be made of unlike material, reduces production cost.
In the present embodiment, the first check valve 4 and second one-way valve 10 cooperate, and when water pump stops working, can make vacuum chamber
Vacuum state is still kept in vivo, can be directly initiated when using, not needed to be exhausted again and pour water next time；And bivalve setting can
It effectively avoids the pump housing 1 and the intracorporal liquid reflux of vacuum chamber to fluid input port, and then causes safety accident.
In the present embodiment, it is provided with pour water plug screw 16 and bleed screw 15 on the above-mentioned pump housing 1, is additionally provided with use on the pump housing 1
To install the motor cabinet 31 of motor 3.
In the present embodiment, connecting flange 12 is provided on above-mentioned water outlet 11, water outlet 11 is via connecting flange 12 and uses
Wetting system connection.
In the present embodiment, the above-mentioned pump housing 1 further includes upper pump cover 101 and lower pump cover 102, multi-stage impeller guide vane mechanism peace
Between upper pump cover and lower pump cover, the upper outer edge contact of the upper pump cover is on the pump housing, and its underpart contact is in the top
Cover top every grade, the lower pump cover upper outer edge contact covers lower part every grade in bottom, and the lower pump cover passes through bolt lock
Tightly on the pump housing.
A kind of application method of vertical multi-stage bivalve centrifugal pump of the present invention, when use：By the water inlet of water pump and water delivery end
It is connected, the water outlet of water pump is connected with water equipment, opens water pump, multi-stage impeller guide vane mechanism rotation, by vacuum chamber
Body and the intracorporal air discharge of pump, water enters the pump housing via check valve, enters through impeller center, from star plate after functional leaf acceleration
Groove is thrown away upwards, the water thrown away enters along the guide groove of guide vane, from through-hole outflow after the guidance of water conservancy diversion leaf from entering flowing plate
Circular hole outflow, is discharged followed by after multiple impeller vanes from pump housing water outlet.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (9)
1. a kind of vertical multi-stage bivalve centrifugal pump, it is characterised in that：The vacuum cavity of water inlet is provided with including bottom, it is described true
The mechanism that draws water is provided in cavity body, the mechanism that draws water includes the pump housing, water outlet is provided on the pump housing, in the pump housing
It is provided with the multi-stage impeller guide vane mechanism that rotation is driven via motor, the bottom of the pump housing is provided with the bottom in vacuum cavity
The bailing outlet in portion is provided with the first check valve for preventing aqueous reflux from returning vacuum cavity on the bailing outlet；The output of the motor
End is provided with the shaft of connection multi-stage impeller guide vane mechanism；Multi-stage impeller guide vane mechanism include it is multiple along water direction of travel according to
The secondary impeller and guide vane being staggered；The guide vane includes tubular every grade set, it is described every in grade set along water direction of travel successively
It is provided with and is covered every grade and the equal deflector of internal diameter and enter flowing plate, the deflector and enter to be provided with several directions between flowing plate
Consistent arc water conservancy diversion leaf, the deflector middle part are provided with the centre bore for allowing shaft to pass through, and the deflector periphery is evenly equipped with
, around the through-hole of centre bore, the through hole back-end is provided with the guide channel being disposed radially, the guide channel top for several
Portion is successively increased along water direction of travel, and the deflector is in outer low and inner high circular slanting ramp shaped, and the through-hole closes in water conservancy diversion leaf
The setting of side wall outer end, guide channel inner sidewall and adjacent guide leaf lateral wall are concentric circles segmental arc, it is described enter flowing plate in outer height
Low funnel-form, the middle part is provided with the circular holes that internal diameter is greater than shaft, and the bore inner diameter is equal with guide sleeve outer diameter, described to lead
Flow it is concordant on the outside of leaf outer end and deflector, inner end with enter flowing plate inside flush so that water enters via through holes from guide channel
By water conservancy diversion leaf guidance after from enter flowing plate circular hole outflow；Pour water plug screw and bleed screw are provided on the pump housing.
2. vertical multi-stage bivalve centrifugal pump according to claim 1, it is characterised in that：Installation is provided on the pump housing to turn
The channel of axis, be disposed on the channel bearing assembly for hinged shaft, to the outside framework oil seal of bearing assembly oil sealing,
It prevents water from entering the sealing element of bearing assembly, is provided with drainage hole on the channel side wall between the sealing element and outside framework oil seal.
3. vertical multi-stage bivalve centrifugal pump according to claim 2, it is characterised in that：The impeller is driven by motor to be turned
Dynamic, the guide vane is fixed on the pump housing.
4. vertical multi-stage bivalve centrifugal pump according to claim 3, it is characterised in that：The impeller includes connecting with shaft key
The core wheel set connect is disposed with become a mandarin oralia and star plate along water direction of travel on core wheel set side wall, it is described enter head piece
Several pieces are evenly equipped between plate and star plate towards consistent arc-shaped functional leaf, the oralia that becomes a mandarin includes that an internal diameter is greater than wheel
The heart covers the guide sleeve of outer diameter, is provided with V-shaped interior low outer high annular slab at the top of the guide sleeve lateral wall, it is described enter head piece
Plate and star plate outer diameter are equal, and the star plate side is evenly equipped with several grooves, the quantity and number of recesses of the functional leaf
Equal, the functional leaf is formed by connecting by two pieces of arc panels are tangent, and the arc panel radius positioned inside is less than in outer arcuate plate
Guide sleeve is closed in diameter, the functional leaf inner end, and outer end is concordant with the oralia outer end wall that becomes a mandarin, and the star plate groove closes on function
The one side wall of leaf is curved wall, which is concentric circles segmental arc with the arc panel for being located at outside, so that water is from guide sleeve
Inflow is thrown away after functional leaf accelerates from star plate groove.
5. vertical multi-stage bivalve centrifugal pump according to claim 1, it is characterised in that：The vacuum cavity includes covering to draw
The cylinder at the mouth of a river, upper end and the pump housing of the cylinder are connected to each other, and the lower end of the cylinder is provided with lower cover, are arranged on the lower lid
There is water inlet, the second one-way valve for preventing aqueous reflux from feeding back water end (W.E.) is provided on the water inlet, is provided with bottom on the lower lid
Seat.
6. vertical multi-stage bivalve centrifugal pump according to claim 1, it is characterised in that：Be additionally provided on the pump housing to
The motor cabinet of motor is installed.
7. vertical multi-stage bivalve centrifugal pump according to claim 1, it is characterised in that：Connection is provided on the water outlet
Flange.
8. vertical multi-stage bivalve centrifugal pump according to claim 1, it is characterised in that：The pump housing further include upper pump cover and
Lower pump cover, multi-stage impeller guide vane mechanism are mounted between pump cover and lower pump cover, the upper outer edge top of the upper pump cover
Be against on the pump housing, its underpart contact covers top every grade in the top, the lower pump cover upper outer edge contact bottom every
Grade set lower part, the lower pump cover are locked on the pump housing by bolt.
9. a kind of application method of vertical multi-stage bivalve centrifugal pump as described in claim 1, it is characterised in that：By water pump into
The mouth of a river is connected with water delivery end, and the water outlet of water pump is connected with water equipment, opens water pump, the rotation of multi-stage impeller guide vane mechanism
Turn, by vacuum cavity and pumps intracorporal air discharge, water enters the pump housing via check valve, enters through impeller center, and functional leaf adds
It is thrown away upwards after speed from star plate groove, the water thrown away enters along the guide groove of guide vane, flows out from through-hole and draw through water conservancy diversion leaf
From the outflow of flowing plate circular hole is entered after leading, it is discharged followed by after multiple impeller vanes from pump housing water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863272.3A CN106438377B (en) | 2016-09-29 | 2016-09-29 | Vertical multi-stage bivalve centrifugal pump and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863272.3A CN106438377B (en) | 2016-09-29 | 2016-09-29 | Vertical multi-stage bivalve centrifugal pump and its application method |
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| CN106438377A CN106438377A (en) | 2017-02-22 |
| CN106438377B true CN106438377B (en) | 2018-11-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812423A (en) * | 2017-11-18 | 2019-05-28 | 浙江豪贝泵业股份有限公司 | A kind of self priming pump |
| CN113464443B (en) * | 2021-08-05 | 2024-06-18 | 山东大学 | Guide vane fixed two-stage booster centrifugal pump |
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| DE4401658A1 (en) * | 1994-01-21 | 1995-07-27 | Wilo Gmbh | Centrifugal pump with backflow preventing valve |
| CN2374671Y (en) * | 1999-04-09 | 2000-04-19 | 升川机电有限公司 | liquid delivery device |
| CN2384006Y (en) * | 1999-07-23 | 2000-06-21 | 高建树 | Miniature high-lift double-stage self priming 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 |
| DE102008034963A1 (en) * | 2008-07-25 | 2010-01-28 | Rwe Power Ag | Multi-stage centrifugal pump e.g. submersible motor-driven pump, for drainage of mining industry enterprises in e.g. open pits, has vanes forming channel, where distance of vanes at inlet side corresponds to distance of vanes at outlet side |
| CN201574939U (en) * | 2009-12-04 | 2010-09-08 | 开利泵业(集团)有限公司 | Multistage centrifugal pump |
| CN204921462U (en) * | 2015-09-02 | 2015-12-30 | 浙江东音泵业股份有限公司 | Impeller |
| CN105604952B (en) * | 2016-01-03 | 2018-02-13 | 浙江水泵总厂有限公司 | Vertical centrifugal oil pump |
| CN205533264U (en) * | 2016-01-28 | 2016-08-31 | 绵阳博凡科技有限公司 | Vertical multi -stage centrifugal pump |
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2016
- 2016-09-29 CN CN201610863272.3A patent/CN106438377B/en active Active
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