CN108468647A - Vacuum aided self priming pump - Google Patents
Vacuum aided self priming pump Download PDFInfo
- Publication number
- CN108468647A CN108468647A CN201810588317.XA CN201810588317A CN108468647A CN 108468647 A CN108468647 A CN 108468647A CN 201810588317 A CN201810588317 A CN 201810588317A CN 108468647 A CN108468647 A CN 108468647A
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- China
- Prior art keywords
- pump
- impeller
- lever
- ball
- suction chamber
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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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
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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
- F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
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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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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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 invention discloses a kind of vacuum aided self priming pumps; including dry type installation centrifugal pump, suction chamber, vacuum pump, the anhydrous dry rotation protection device of mechanical seal; and the broached-tooth design in centrifugal pump is installed mounted on dry type; the anhydrous startup that self priming pump is realized using the anhydrous dry rotation protection device of mechanical seal realizes self-cleaning function using the back blades of blade and impeller in the pump housing.The configuration of the present invention is simple; it can directly initiate, be automatically performed repeatedly, lasting self-priming; additional human intervention is not needed; the anhydrous rotation protection of main shaft can be achieved; the pump housing is set to realize anhydrous startup function; the self-cleaning function having can realize that the cleaning function to sucking particulate matter, the complexity of the frequent starting and fibrousness solid refuse in sewage disposal that can be competent at rescue pump medium.
Description
Technical field
The present invention relates to centrifugal pump fields, specifically vacuum aided self priming pump.
Background technology
Centrifugal pump is that liquid is transported to the most common pump of another place from a place, for irrigating, domestic water
System, sewage disposal and many other applications.Liquid by the impeller propelled in the pump housing from priming reservoir by the pump housing by exporting
Pipe is discharged.Spiral case inlet opening and impeller are concentric.The rotation of impeller makes liquid be got rid of outward to impeller outer edge and concentrates from pump housing outlet
Discharge.When liquid drives outward, vacuum is generated at center, to suck in more liquid to pump.
One of the major limitation that centrifugal pump uses is that when being full of air in pump, impeller can only drive air to rotate, because of sky
The centrifugal force of the very light in weight generation of gas unit volume is very small, and usually the air in pump chamber and inlet tube cannot be discharged, they do not have
There is the ability that voluntarily sucking liquid is started, liquid can not just be pumped on pump when fluid level is less than centre bore.When
Liquid reaches central hole location and just will produce necessary vacuum from the outside movement of centre bore with lasting extraction liquid.In universal machine
Pump field, it is general it is non-diving installing type centrifugal pump in addition to itself carry self-suction function self priming pump and by positive pressure water inlet from
The centrifugal pump of most of dry types installation is required to configure bottom valve in pump inlet pipe end outside heart pump, is needed before first time starts pair
Pump pour water and can start.Such as the use environments such as draining, the operation of pump is discontinuous, needs to repeat constantly people
It is pumped to fill.Bottom valve has natural defect although pump machine is mounted with bottom valve, is mainly manifested in：1. bottom valve is heavy and installs
Installation, monitoring, maintenance and repair are not easy under liquid；2. bottom valve be easy to cause burn into turn in a liquid due to long period of soaking
Sealing effect is influenced, it is serious can not to work in secondary water suction；3. generated solid particle can be into production and flow
Enter in circulating liquid that aggregation and adherency of the solid particle in bottom valve can make bottom valve that can not be fully sealed, bottom valve can fail at once；
4. since the water entering surface that bottom valve is mounted on water inlet pipe end, bottom valve itself can influence to pump manufactures into insufficient water.
It in view of said circumstances, needs to design a kind of vacuum aided self priming pump, not needing bottom valve directly anhydrous can start, voluntarily
Rapid vacuumizing realize self-priming and can repeatedly, lasting self-priming.
The object of the present invention is to provide a kind of vacuum aided self priming pumps for invention content, are deposited with solving prior art centrifugal pump
Can not persistently work, anhydrous cannot start, suck particulate matter can not self-cleaning problem.
In order to achieve the above object, the technical solution adopted in the present invention is：
Vacuum aided self priming pump, it is characterised in that：It is anhydrous dry including dry type installation centrifugal pump, suction chamber, vacuum pump, mechanical seal
Rotation protection device, the dry type installation centrifugal pump includes the pump housing, and pump housing axial direction side, that is, pump housing leading flank is connected to by suction casing
There is water inlet pipe, is closed with shaft-cup on rear side of the pump housing axial direction other side, that is, pump housing and be connected with pump cover, the pump housing is connected to perpendicular to axial side
There are outlet pipe, the pump cover to be sequentially coaxially connected with link, suspension backward, suspension is interior to be rotatablely equipped with master by coaxial bearing
Axis, front-end of spindle pass through pump cover and stretch into the pump housing, the circumferential oil groove for surrounding main shaft are coaxially provided in pump cover lid, in pump cover
Front-end of spindle be coaxially installed with impeller, the rear side wheel face of impeller towards side, that is, impeller of pump cover is equipped with multiple tracks back blades, institute
It states pump cover and is equipped with multiple tracks blade towards the side of impeller, automatically cleaning is realized with the back blades work of the blade and impeller of pump cover
Function, the front side wheel face of impeller are coaxially connected with a circle and move sawtooth, and the suction casing inner wall is coaxially provided with the quiet sawtooth of a circle, by leaf
Inhalation (inhalatio) crushing function is realized in the quiet sawtooth work cooperation of the dynamic sawtooth and suction casing of wheel；
The anhydrous dry rotation protection device of mechanical seal includes the fuel tank being mounted on link, there is fluid in fuel tank, in fuel tank
Top is connected to by upper oil pipe with pump cover inner oil sump top, and lower part is connected to by lower oil pipe with pump cover inner oil sump lower part in fuel tank,
Cycle fluid circuit is constituted by fuel tank and oil groove, anhydrous dry rotation protection is realized using the thermosyphon effect of fluid；
The suction chamber connection is mounted at the top of water inlet pipe, and the conjunction of suction chamber top cover is equipped with sucking chamber cap, and sucking chamber cap has
Central through hole, suction chamber is interior to be equipped with ball-cock assembly seal receptacle, floating ball, spaced motion mechanism, and wherein ball-cock assembly seal receptacle is movable vertically
It is arranged in suction chamber, floating ball, which floats, to be arranged in suction chamber, and ball-cock assembly seal receptacle is connect by spaced motion mechanism with floating ball,
Ball-cock assembly seal receptacle is driven to block up in the central through hole of sucking chamber cap in upward float by floating ball；
The vacuum pump is mounted on suspension, and vacuum pump is connected to by conduit coupling with the central through hole of sucking chamber cap, and is led to
The central through hole for crossing sucking chamber cap is not blocked up in ball-cock assembly seal receptacle and fashionable is connected to in suction chamber.
The vacuum aided self priming pump, it is characterised in that：The outlet pipe nozzle connection of the pump housing is equipped with non-return valve.
The vacuum aided self priming pump, it is characterised in that：The suspension inner main axis is pierced by rear side of suspension, and main shaft is pierced by
Section is sequentially connected by pump shaft in belt component and vacuum pump and realizes synchronous rotation.
The vacuum aided self priming pump, it is characterised in that：The rear-end of spindle is sequentially connected with external prime mover, when outer
When portion's prime mover is diesel engine, the main shaft is sequentially connected by diesel engine Flexible Transmission shaft coupling and diesel engine.
The vacuum aided self priming pump, it is characterised in that：The spaced motion mechanism includes being connected to suction chamber base
The lever dolly in portion, is rotatablely equipped with the first lever, and the second lever above the first lever on lever dolly, and second
Lever one end, first lever one end are sequentially located at below ball-cock assembly seal receptacle, ball-cock assembly seal receptacle lower end and the second lever
The connection of one end below ball-cock assembly seal receptacle is stretched to, one end that the first lever is located at below ball-cock assembly seal receptacle passes through ball lever, U
Type folder is connect with floating ball, and the first lever, the second lever other end are connected by lever connection ring.
The vacuum aided self priming pump, it is characterised in that：It is located at suction chamber and water inlet pipe connectivity part in the suction chamber
Top is equipped with filter screen.
The vacuum aided self priming pump, it is characterised in that：The blade of the pump cover is that uniform circumferential direction is distributed in main shaft week
It encloses, the back blades of wheel face is in uniformly circumferential Spiral distribution on rear side of the impeller, and back blades makes impeller in wheel rotation on impeller
The medium at rear generates centrifugal movement, and the blade of pump cover is coordinated to form low-pressure area in space between pump cover and impeller.
The vacuum aided self priming pump, it is characterised in that：The dynamic sawtooth of the impeller and the quiet sawtooth of suction casing are mutual
Close, the crisscross motion formed by the serrated face of dynamic sawtooth and static quiet sawtooth with wheel rotation realizes that inhalation (inhalatio) crushes
Function.
Compared with prior art, advantages of the present invention is：
1, simple in structure, there is no larger change to the appearance and size of former centrifugal pump, need not additionally configure power.
2, easy to operate, need not add other ancillary equipments can directly initiate, be automatically performed repeatedly, lasting self-priming.
3, low energy consumption, need not separately configure power or increase original power configuration.
4, additional human intervention is not needed, cost of labor has been saved, has reduced labor intensity and security risk.
5, it can realize that the anhydrous rotation of main shaft is protected by fuel tank inner fluid, the pump housing is enable to realize anhydrous startup function.
6, device efficiency is high, stable and reliable operation, and the self-cleaning function having can realize the cleaning work(to sucking particulate matter
Can, the complexity of the frequent starting and fibrousness solid refuse in sewage disposal that can be competent at rescue pumps medium.
Description of the drawings
Fig. 1 is structure of the invention side view.
Fig. 2 is structure of the invention front view.
Fig. 3 is suction chamber structure schematic diagram of the present invention.
Fig. 4 is sump portion structural schematic diagram of the present invention.
Fig. 5 is pump cover blade schematic diagram of the present invention.
Fig. 6 is impeller back blades schematic diagram of the present invention.
Fig. 7 is the dynamic sawtooth of the present invention and quiet sawtooth schematic diagram.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Fig. 1-Fig. 7, vacuum aided self priming pump, including dry type installation centrifugal pump, suction chamber 21, vacuum pump 7, machinery
Anhydrous dry rotation protection device 15 is sealed, dry type installation centrifugal pump includes the pump housing 17,17 leading flank of axial side, that is, pump housing of the pump housing 17
It is communicated with water inlet pipe 24 by suction casing 19, axial 17 rear side of the other side, that is, pump housing of the pump housing 17 is connected with pump cover 14 with shaft-cup conjunction,
The pump housing 17 is communicated with outlet pipe 25 perpendicular to axial side, and pump cover 14 is sequentially coaxially connected with link 11, suspension 10 backward,
Main shaft 2 is rotatablely equipped with by coaxial bearing in suspension 10,2 front end of main shaft passes through pump cover 14 and stretches into the pump housing 17, pump cover 14
The circumferential oil groove 26 for surrounding main shaft 2 is coaxially provided in lid, 2 front end of main shaft in pump cover 14 is coaxially installed with impeller 16, leaf
The rear side wheel face of wheel 16 towards side, that is, impeller of pump cover 14 is equipped with multiple tracks back blades 27, and the side of pump cover 14 towards impeller 16 is set
There is multiple tracks blade 28, self-cleaning function, impeller 16 are realized with the blade 28 of pump cover 14 and the work of back blades 27 of impeller 16
Front side wheel face be coaxially connected with a circle and move sawtooth 29,19 inner wall of suction casing is coaxially provided with the quiet sawtooth 30 of a circle, by the dynamic of impeller
Inhalation (inhalatio) crushing function is realized in the work cooperation of the quiet sawtooth 30 of sawtooth 29 and suction casing 19；
The anhydrous dry rotation protection device of mechanical seal 15 includes the fuel tank being mounted on link 11, there is fluid in fuel tank, in fuel tank
Top is connected to by upper oil pipe 31 with 14 inner oil sump of pump cover, 26 top, and lower part passes through lower oil pipe 32 and 14 inner oil sump of pump cover in fuel tank
26 lower parts are connected to, and cycle fluid circuit is constituted by fuel tank and oil groove 26, realize that anhydrous dry turn is protected using the thermosyphon effect of fluid
Shield；
The connection of suction chamber 21 is mounted on 24 top of water inlet pipe, and the conjunction of 21 top cover of suction chamber is equipped with sucking chamber cap n, sucking chamber cap n
With central through hole, ball-cock assembly seal receptacle h, floating ball b, spaced motion mechanism, wherein ball-cock assembly seal receptacle h are equipped in suction chamber 21
It is movably arranged in suction chamber 21 vertically, floating ball b, which floats, to be arranged in suction chamber 21, and ball-cock assembly seal receptacle h passes through spaced motion
Mechanism is connect with floating ball b, drives ball-cock assembly seal receptacle h to block up the central through hole into sucking chamber cap n in upward float by floating ball b
In；
Vacuum pump 7 is mounted on suspension 10, and vacuum pump 7 is connected to by conduit coupling 12 with the central through hole of sucking chamber cap n, and
Fashionable interior with suction chamber 21 be connected to is not blocked up in ball-cock assembly seal receptacle h by sucking the central through hole of chamber cap n.
25 nozzle of the outlet pipe connection of the pump housing 7 is equipped with non-return valve 22.
10 inner main axis 2 of suspension is pierced by from 10 rear side of suspension, and main shaft 2 is pierced by section and passes through pump shaft in belt component 4 and vacuum pump 7
It is sequentially connected and realizes synchronous rotation.
2 rear end of main shaft is sequentially connected with external prime mover, and when external prime mover is diesel engine, main shaft 2 passes through diesel engine
Flexible Transmission shaft coupling 3 is sequentially connected with diesel engine.
Spaced motion mechanism includes being connected to the lever dolly j of the bottoms sucking chamber cap n, is rotatablely equipped on lever dolly j
First lever e, and the second lever f above the first lever e, second one end lever f, first one end lever e position successively
Below ball-cock assembly seal receptacle h, the company of one end below ball-cock assembly seal receptacle h is stretched in the ball-cock assembly lower ends seal receptacle h with the second lever f
It connects, the first lever e is located at one end below ball-cock assembly seal receptacle h and is connect with floating ball b by ball lever c, U-shaped folder d, the first lever
E, the second lever f other ends pass through the k connections of lever connection ring.
It is located in suction chamber 21 above suction chamber 21 and 24 connectivity part of water inlet pipe and is equipped with filter screen i.
As shown in Figure 5, Figure 6, the blade 28 of pump cover 14 is that uniform circumferential direction is distributed in around main shaft 2,16 rear side wheel face of impeller
Back blades 27 in uniformly circumferential Spiral distribution, back blades 27 produces the medium at 16 rear of impeller when impeller 16 rotates on impeller
Raw centrifugal movement coordinates the blade 28 of pump cover 14 to form low-pressure area realization automatically cleaning work(in space between pump cover 14 and impeller 16
Energy.
As shown in fig. 7, the dynamic sawtooth 29 of impeller 16 and the quiet sawtooth 30 of suction casing 19 are close to each other, by with 16 turns of impeller
Inhalation (inhalatio) crushing function is realized in the crisscross motion that the serrated face of dynamic dynamic sawtooth 29 and static quiet sawtooth 30 is formed.
Vacuum aided self priming pump of the present invention centrifuges pump portion：Main shaft 2 is by drive end bearing 1 and non-driven-end bearing 9
Support is assemblied in suspension 10, and drive end bearing is by diesel engine link 5（Bearing gland is used when gas-distributing motor drives）Cooperation is axial
It positions and by skeleton oil seal, by 11 axially position of link and by skeleton oil seal, diesel engine connects non-driven-end bearing
It connects frame 5 and link 11 is fastened on by bolt on suspension 10, the pump cover 14 of centrifugal pump cover seal chamber self-cleaning structure is by bolt
It being fastened on link 11, suction casing 19 is fastened on the pump housing 17 by bolt and is connected to together on pump cover 14, the pump cover-pump housing,
The pump chamber of sealing is cooperatively formed between the pump housing-suction casing by gasket sealing, mechanical sealing static ring is assemblied on pump cover 14, is mechanical
Moving sealing ring is wrapped on main shaft 2 by rubber parts by the common axially position of stationary ring and impeller hub end face.Mechanical seal is anhydrous dry
Rotation protection device 15 is fixed on the top of link 11 by pump cover-pump housing bolt and is connected to the oil groove of 14 end of pump cover, impeller 16 by
Bolt is fixed on main shaft 2, and back blades 27 and the blade 28 in pump cover 14 at 16 back of impeller realize pump cover machine sealing chamber jointly
Self-cleaning function, the inlet end face of impeller 16 are equipped with sewage pump inlet saw-blade type cutter device with the inlet end face of suction casing 19
20, sewage pump inlet saw-blade type cutter device 20 is by the fixed quiet sawtooth of the dynamic sawtooth 29 and suction casing 19 that are rotated with impeller 16 30
It constitutes.The crushing of the dynamic bar for completing to enter with medium pump chamber of two width sawtooth one quiet one therein.The outlet pipe of the pump housing is with inverse
Only valve 22, rubber gasket therein when vacuumizing at sealing state complete to vacuumize to seal pump chamber auxiliary, it is normal in pump
Opening state makes the smooth discharge of medium at when work.Suction chamber 21 is assembled at the top of the water inlet pipe of the pump housing, suction chamber 21 is completed in pump
Float valve is automatically closed when self-priming and is damaged with preventing water from entering vacuum pump.
Chamber a in suction chamber 21 and sucking chamber cap n are sealed by gasket and are formed sealed chamber, medium by chamber a hole
Filtered into suction chamber and through filter screen i, floating ball b connect by ball lever c and U-shaped folder d with the first lever, the first lever e with
Second lever f by the k connections of lever connection ring, on the second lever f equipped with floating ball valve insert g, lever dolly j by positioning pin m and
Bolt L is fixed on sucking chamber cap n and support lever, and ball-cock assembly seal receptacle h is assemblied on sucking chamber cap n.Floating ball b, lever e,
F, holder j and ball-cock assembly seal receptacle h is all made of stainless steel to ensure device continuous and effective.Air in pump chamber and inlet tube
Suction chamber 21 is entered by the hole 1 on chamber a, sky is discharged to by vacuum pump 7 by connecting pipe 12 from the hole 2 on sucking chamber cap n
In gas.
In the present invention, the anhydrous dry rotation protection device 15 of mechanical seal is fixed on 11 top of link by the pump housing-pump cover bolt,
It is connected on the oil groove of pump cover 14 by oil pipe connector " on to above and below under " principle, utilizes thermosyphon effect：Mechanical seal
Lubricating oil absorbs the heat that dynamic and static ring friction generates when operating, and lubrication oil density reduces toward floating, by oiling after absorbing heat
Pipe 31 is until in fuel tank, low-temperature oil in fuel tank sunk by lower oil pipe 32, oil mass in supplement oil groove, and oil is floating and sinking
Constantly heat is discharged into through tube wall and oil tank wall in air in the process, and is gradually cooled to low-temperature oil.This is recycled in cycles,
Anhydrous do of realization machine envelope turns, assists realization pump is anhydrous to directly initiate and complete self-priming.
Non-return valve 22 is housed, the rubber gasket 23 in non-return valve 22 is when pumping normal operation on the outlet pipe of the pump housing 17
It up tilts and ensures that medium clear unimpededly discharges, when pump has just started when vacuumizing since gravity rubber is close
Packing 23 is sagging and is attached on non-return valve, when cavity pressure is gradually reduced pump, external atmosphere pressure acts on rubber gasket 23
So that it is sealed pump chamber does not allow outside air to enter.
Vacuum pump 7 is assemblied in by parallels 8 on the suspension 10 of centrifugal pump, and belt component 4 connects vacuum pump 7 and centrifugal pump
Axis 2 is simultaneously driven, and moving component is covered on the inside to shield by protective cover 6, and diesel engine Flexible Transmission shaft coupling 3 is assemblied in axis
To connect Diesel Driven pump work on 2, it is unworthy of diesel engine link 5 and diesel engine when matching other prime mover drivens such as motor
The import of Flexible Transmission shaft coupling 3, vacuum pump 7 is connected to suction chamber 21 by conduit coupling 12 and is communicated with centrifugal pump pump chamber,
Centrifugation pump startup after vacuum pump 7 start therewith, the air in centrifugal pump pump chamber and inlet tube constantly sealed buoyancy tank by vacuum
Pump 7 is flow back in air, and the pump chamber and the gas in inlet tube of sealing, which are pumped, makes cavity indoor pressure decline, and the water of priming reservoir is big
Pump chamber is progressed under the action of air pressure until being full of pump chamber.
The first lever e, the second lever f, lever connection ring k and lever dolly j in suction chamber 21 form link mechanism, float
Ball b is mounted on the end of the first lever e in link mechanism, is freely hanging at suction by gravity when no water in pump chamber
It enters the room in 21, floating ball valve insert g makes hole 2 keep unimpeded far from ball-cock assembly seal receptacle h, another end in link mechanism is
Floating ball valve insert g is installed, floating ball b rises continuous with water level after water level, which is gradually increasing, touches floating ball b on the second lever f
Float, floating ball b floating by link mechanism push the second lever f on floating ball valve insert g up push up up to completely with float
Hole 2 is closed in ball-valve sealing base h fittings, and medium has been filled with pump chamber and will not enter in vacuum pump 7 at this time.Ball valve is turned off manually at this time
18 make floating ball valve insert g be subjected only to the thrust of floating ball to extend the service life of floating ball valve insert g.
After centrifugal pump runs well, fibrous solids rubbish that may be present can enter with medium and pump in priming reservoir
Probability bigger of the medium of chamber, especially treated sewage or emergency management and rescue containing such rubbish is mounted on the sewage of pump housing input end
Pump inlet saw-blade type cutter device can pass through the quiet sawtooth 30 and leaf on suction casing 19 before such solid refuse enters pump chamber
Dynamic sawtooth 29 on wheel 16 is crushed, and pulverized solid refuse then can be easily by impeller and pump housing runner and from outlet
Discharge.
The pump cover 14 of the seal chamber self-cleaning structure of configuration equally distributed comes into leaves in the inner wall of machine sealing chamber added with 3 pieces
The blade 28 that piece and evenly spaced 3 pieces short impeller are constituted, the formation of these blades expel device and facilitate the gas being attached in machine sealing chamber
The solid particle for steeping and being deposited in machine envelope surface takes machine sealing chamber out of by the centrifugal force that 16 back blades 27 of impeller generates and supplements cleaning
Medium, this model machine envelope rubs, and by-produced heat can pass in time, the relative low temperature of holding machine envelope operates.
Claims (8)
1. vacuum aided self priming pump, it is characterised in that：It is anhydrous including dry type installation centrifugal pump, suction chamber, vacuum pump, mechanical seal
Dry rotation protection device, the dry type installation centrifugal pump includes the pump housing, and pump housing axial direction side, that is, pump housing leading flank is connected by suction casing
It is connected with water inlet pipe, is closed with shaft-cup on rear side of the pump housing axial direction other side, that is, pump housing and is connected with pump cover, the pump housing connects perpendicular to axial side
It is connected with outlet pipe, the pump cover is sequentially coaxially connected with link, suspension, is rotatablely equipped with by coaxial bearing in suspension backward
Main shaft, front-end of spindle pass through pump cover and stretch into the pump housing, the circumferential oil groove for surrounding main shaft are coaxially provided in pump cover lid, in pump cover
Interior front-end of spindle is coaxially installed with impeller, and the rear side wheel face of impeller towards side, that is, impeller of pump cover is equipped with multiple tracks back blades,
The pump cover is equipped with multiple tracks blade towards the side of impeller, is realized from clear with the back blades work of the blade and impeller of pump cover
Clean function, the front side wheel face of impeller are coaxially connected with a circle and move sawtooth, and the suction casing inner wall is coaxially provided with the quiet sawtooth of a circle, by
Inhalation (inhalatio) crushing function is realized in the quiet sawtooth work cooperation of the dynamic sawtooth and suction casing of impeller；
The anhydrous dry rotation protection device of mechanical seal includes the fuel tank being mounted on link, there is fluid in fuel tank, in fuel tank
Top is connected to by upper oil pipe with pump cover inner oil sump top, and lower part is connected to by lower oil pipe with pump cover inner oil sump lower part in fuel tank,
Cycle fluid circuit is constituted by fuel tank and oil groove, anhydrous dry rotation protection is realized using the thermosyphon effect of fluid；
The suction chamber connection is mounted at the top of water inlet pipe, and the conjunction of suction chamber top cover is equipped with sucking chamber cap, and sucking chamber cap has
Central through hole, suction chamber is interior to be equipped with ball-cock assembly seal receptacle, floating ball, spaced motion mechanism, and wherein ball-cock assembly seal receptacle is movable vertically
It is arranged in suction chamber, floating ball, which floats, to be arranged in suction chamber, and ball-cock assembly seal receptacle is connect by spaced motion mechanism with floating ball,
Ball-cock assembly seal receptacle is driven to block up in the central through hole of sucking chamber cap in upward float by floating ball；
The vacuum pump is mounted on suspension, and vacuum pump is connected to by conduit coupling with the central through hole of sucking chamber cap, and is led to
The central through hole for crossing sucking chamber cap is not blocked up in ball-cock assembly seal receptacle and fashionable is connected to in suction chamber.
2. vacuum aided self priming pump according to claim 1, it is characterised in that：The outlet pipe nozzle connection peace of the pump housing
Equipped with non-return valve.
3. vacuum aided self priming pump according to claim 1, it is characterised in that：The suspension inner main axis is worn on rear side of suspension
Go out, main shaft is pierced by section and realizes synchronous rotation by pump shaft drive connection in belt component and vacuum pump.
4. vacuum aided self priming pump according to claim 3, it is characterised in that：The rear-end of spindle is passed with external prime mover
Dynamic connection, when external prime mover is diesel engine, the main shaft is connected by diesel engine Flexible Transmission shaft coupling and diesel engine transmission
It connects.
5. vacuum aided self priming pump according to claim 1, it is characterised in that：The spaced motion mechanism includes being connected to
The lever dolly in suction chamber base portion is rotatablely equipped with the first lever, and above the first lever on lever dolly
Two levers, second lever one end, first lever one end are sequentially located at below ball-cock assembly seal receptacle, ball-cock assembly seal receptacle lower end
The one end stretched to below ball-cock assembly seal receptacle with the second lever is connect, and it is logical that the first lever is located at one end below ball-cock assembly seal receptacle
It crosses ball lever, U-shaped folder and floating ball to connect, the first lever, the second lever other end are connected by lever connection ring.
6. vacuum aided self priming pump according to claim 1, it is characterised in that：Be located in the suction chamber suction chamber with into
Filter screen is equipped with above water pipe connectivity part.
7. vacuum aided self priming pump according to claim 1, it is characterised in that：The blade of the pump cover is uniformly circumferential point
Cloth is around main shaft, and the back blades of wheel face is in uniformly circumferential Spiral distribution on rear side of the impeller, and back blades turns in impeller on impeller
So that the medium at impeller rear is generated centrifugal movement when dynamic, the blade of pump cover is coordinated to form low-pressure area in space between pump cover and impeller
Realize self-cleaning function.
8. vacuum aided self priming pump according to claim 1, it is characterised in that：The dynamic sawtooth of the impeller and suction casing
Quiet sawtooth is close to each other, and the crisscross motion formed by the serrated face of dynamic sawtooth and static quiet sawtooth with wheel rotation is realized
Inhalation (inhalatio) crushing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588317.XA CN108468647A (en) | 2018-06-08 | 2018-06-08 | Vacuum aided self priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588317.XA CN108468647A (en) | 2018-06-08 | 2018-06-08 | Vacuum aided self priming pump |
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| CN108468647A true CN108468647A (en) | 2018-08-31 |
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ID=63260730
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810588317.XA Pending CN108468647A (en) | 2018-06-08 | 2018-06-08 | Vacuum aided self priming pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236671A (en) * | 2018-11-23 | 2019-01-18 | 艾迪机器(杭州)有限公司 | A kind of self-suction function elasticity Turo pump |
| CN109488609A (en) * | 2019-01-16 | 2019-03-19 | 陈晨 | A kind of automatic liquid filling centrifugal pump |
| CN111594452A (en) * | 2020-06-02 | 2020-08-28 | 扈缪洁 | Working condition self-adaptive backflow self-blocking type uncontrolled self-priming pump |
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| CN109488609A (en) * | 2019-01-16 | 2019-03-19 | 陈晨 | A kind of automatic liquid filling centrifugal pump |
| CN111594452A (en) * | 2020-06-02 | 2020-08-28 | 扈缪洁 | Working condition self-adaptive backflow self-blocking type uncontrolled self-priming pump |
| CN111594452B (en) * | 2020-06-02 | 2021-02-19 | 钱小英 | Working condition self-adaptive backflow self-blocking type uncontrolled self-priming pump |
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