CN209687729U - A kind of high-lift pump - Google Patents

Abstract

The utility model provides a kind of high-lift pump, solves the problems, such as that existing pump head is short.A kind of high-lift pump, including power device and water pump, the water pump include the intake pump that described power device one end is arranged in and the water outlet pump that the power device other end is arranged in, and are connected between the intake pump and the water outlet pump by water pipe.The lift for accelerating to increase sewage twice that a kind of high-lift pump of the utility model passes through intake pump and water outlet pump.

Description

A kind of high-lift pump

Technical field

The utility model belongs to water pump technology, and in particular to a kind of high-lift pump.

Background technique

Water pump belongs to one kind of centrifugal impurities pump, mainly for delivery of municipal sewage；Water pump has diversified forms: as dived under water Formula and two kinds of dry type, most common submersible type are QW type submerged water pump, the most common dry type water pump such as W type horizontal pump and WL type Two kinds of vertical water pump；Due to the medium containing solid particles such as fiber, paper scraps in municipal sewage, these media easily wind or gather Beam, therefore water pump runner is easy to block, once being blocked can make to pump cisco unity malfunction, or even motor is burnt, to cause blowdown It is unsmooth.

The lift of existing water pump has focused largely on 15m or so, extremely can achieve 20m or so individually, but actually makes In, when floor is higher, for existing water pump due to the limitation of lift, using effect is bad, and the effect of anticipation is not achieved.

Utility model content

The utility model aim is to provide a kind of high-lift pump solve the problems, such as that existing pump head is short.

The technology employed by the present utility model is

A kind of high-lift pump, including power device and at least two water pumps, the power device are equipped with water pump one by one Power output end corresponding and for driving water pump passes sequentially through water pipe and is connected according to the direction of water flow between water pump.

Optionally, there are two the water pumps, the power device is equipped with and two one-to-one output ends of water pump.

The quantity of water pump and power device output end matches, and increases accelerated time of sewage by the design of multiple water pumps Number increases energy possessed by sewage, and then improves the lift of sewage.

Optionally, the power device includes a double output shaft electric machine, and two output ends of power device are respectively power The both ends of device output shaft.

The multiple water pumps of the same motor driven are realized by double output shaft electric machines, simplify structure, are simplified design, are reduced simultaneously Economic cost.

Optionally, the power device further includes end cap and the starter that is electrically connected with the power device, the power Device both ends are equipped with the end cap being connected with the water pump, and the output shaft of the power device passes through the end cap and the water pump It is connected.

It is connected respectively with intake pump, water outlet pump by motor output shaft, and then makes the same same set of power device to dirt Water is accelerated twice, increases energy possessed by sewage, and then improves lift.

Optionally, the water pump includes intake pump and water outlet pump, and the intake pump and the water outlet pump pass through connector It is connected with the end cap, the intake pump is connected with one end of the output shaft, and the water outlet pump is another with the output shaft End is connected.

Intake pump and water outlet pump configuration are simple, and size is small, occupies little space, while can be according to actual needs to water The size of pump amplifies, and increases the scope of application of this high-lift pump.

Optionally, the connector is ring flange.

Flanged joint has the advantages that convenient disassembly, intensity height, good airproof performance

Optionally, the intake pump includes first pump housing, the first water inlet connector and the first impeller, on first pump housing Equipped with the first inlet opening and the first apopore being connected to first inlet opening, the water inlet end of first inlet opening with it is described First water inlet connector is connected, and the installation end of first inlet opening is connected with the connector, is arranged in first pump housing Interior first impeller is connected with the output shaft.

Intake pump accelerates sewage, increases energy possessed by sewage, while pump configuration of intaking is simple, dismounting side Just.

Optionally, the first water inlet connector includes connecting plate and the first stationary knife, and the connecting plate includes and described the Several connectors one pump housing connected plate body and be connected with the plate body, the plate body are that center is equipped with the hollow of mounting hole Ring, the outer rim of the plate body and the water inlet end of first inlet opening match；

First stationary knife is the circular slab of grafting in the mounting hole, and it is logical that first stationary knife is equipped with the first water inlet Hole, and the edge of first stationary knife is equipped with the first uniformly distributed fixation hole.

Water inlet pipe is connected by the first water inlet connector with intake pump, is able to enter sewage in this high-lift pump；Simultaneously It ensure that sewage will not enter first pump housing from from the gap of the pump housing and front cover by the setting of the first stationary knife.

Optionally, the water outlet pump includes second pump housing, the second water inlet connector and the second impeller, on second pump housing Equipped with the second inlet opening and the second apopore being connected to second inlet opening, the water inlet end of second inlet opening with it is described Second water inlet connector is connected, and the installation end of second inlet opening is connected with the connector, is arranged in second pump housing Interior second impeller is connected with the output shaft.

While water outlet pump carries out secondary acceleration to sewage, the sewage accelerated by this high-lift pump is sent out, dirt is made Water reaches required height.

Optionally, it is described second water inlet connector include water inlet lid and the second stationary knife, it is described water inlet cover equipped with third into Water hole and the third apopore being connected to second inlet opening, the third inlet opening and first apopore pass through described Water pipe connection, the third apopore are connected to and match with second inlet opening；

Second stationary knife is the circular slab for being fixed on the water inlet end of second inlet opening, and second stationary knife is equipped with Second inlet through hole, and the edge of second stationary knife is equipped with the second uniformly distributed fixation hole.

Second water inlet connecting-piece structure is similar with second pump housing, and processing method is similar, can save processing cost.

The utility model has the following beneficial effects:

This high-lift pump is compact-sized, and the space occupied is small, improves dirt by the secondary acceleration of intake pump, water outlet pump The lift of water makes sewage reach higher floor；Furthermore, it is possible to rationally increase or reduce this height according to actual use demand The size of lift water pump increases the scope of application of this high-lift pump.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of this high-lift pump.

Fig. 2 is the side structure schematic view of this high-lift pump.

Fig. 3 is the structural schematic diagram of intake pump.

Fig. 4 is the perspective view of the explosion of intake pump.

Fig. 5 is the structural schematic diagram of water outlet pump.

Fig. 6 is the perspective view of the explosion of water outlet pump.

Fig. 7 is the structural schematic diagram of connecting plate.

Fig. 8 is the structural schematic diagram of end cap.

Fig. 9 is the structural schematic diagram of the first impeller.

In figure: 1- water pipe；2- power device；21- motor；22- end cap；221- lid；222- protrudes ring；23- starter； 3- intake pump；First pump housing of 31-；The first inlet opening 311-；The first apopore of 312-；The first impeller of 32-；321- front cover；322- Blade；323- rear cover；The water inlet connector of 33- first；331- connecting plate；331a- plate body；331b- connector；332- first is fixed Knife；4- water outlet pump；Second pump housing of 41-；The second inlet opening 411-；The second apopore of 412-；The second impeller of 42-；43- second is intake Connector；431- water inlet lid；431a- third inlet opening；431b- third apopore；The second stationary knife of 432-；5- connector.

Specific embodiment

With reference to the accompanying drawing and specific embodiment is further elaborated the utility model.

As shown in Figures 1 to 9, a kind of high-lift pump of the present embodiment, including power device 2 and at least two water pumps, The power device 2 is equipped with the power output end for corresponding with water pump and be used to drive water pump, according to the direction of water flow, water pump Between pass sequentially through water pipe 1 be connected.

Before the work of this high-lift pump, by first intake connector 33, the second apopore 412 on second pump housing 41 with it is right The pipeline answered is connected, and then this high-lift pump and pipeline is made to be combined into an entirety；Later by start-up capacitance be connected Power supply line is connected with external power supply, and then is that external power supply is powered for this high-lift pump.

This high-lift pump can start to work after pipeline connection and power supply are connected: sewage is connected along with the first water inlet The pipeline that part 33 is connected to enters the first water inlet connector 33, and then passes through the first stationary knife on the first water inlet 33 mounting hole of connector 332, and then entered in first pump housing 31 by the first inlet opening 311 of first pump housing 31；Due to being equipped with the in first pump housing 31 One impeller 32, the first impeller 32 are rotated centered on output shaft under the drive of output shaft, and sewage is after entering the first impeller 32 Accelerate under the drive of the first impeller 32, and then first pump of the outflow of the first apopore 312 by being connected to the first inlet opening 311 Body 31, the sewage after acceleration flow into the water pipe 1 being connected with first pump housing 31, and then flow into water inlet lid 431；And then pass through Second stationary knife 432 enters in second pump housing 41, subsequently on the second impeller 42 being arranged in second pump housing 41, the second impeller 42 are rotated centered on output shaft under the drive of output shaft, and sewage is under the drive of the second impeller 42 by secondary acceleration；Finally Sewage passes through the second apopore 412 outflow on second pump housing 41.

Sewage is once accelerated in intake pump 3 during flowing through this high-lift pump, in water outlet pump 4 into The secondary acceleration of row, sewage flow velocity after secondary acceleration obviously increase, and energy possessed by sewage increases, and gravity acting is overcome to increase Add, and then improves the lift of sewage.

In the specific embodiment that the disclosure provides, the power device 2 can be structured as any appropriate structure.Make For a kind of selection, as shown in Figures 1 to 9, the power device 2 includes a double output shaft electric machine, two outputs of power device 2 End is respectively the both ends of 2 output shaft of power device.The power device 2 further includes end cap 22 and is electrically connected with the power device 2 The starter 23 connect, 2 both ends of power device are equipped with the end cap 22 being connected with the water pump, the power device 2 it is defeated Shaft passes through the end cap 22 and is connected with the water pump.

Power device 2 uses induction machine, such as single-phase asynchronous motor, and starter 23 not only includes and 2 electricity of power device The power supply line of connection, further comprises start-up capacitance, and start-up capacitance refers to the alternating current electrolysis capacitor for starting single-phase asynchronous motor Device or polypropylene, polyester capacitor, specifically, single-phase asynchronous motor is one kind of asynchronous machine, it includes starting winding With operation two windings of winding, the starting windings in series of start-up capacitance and single-phase asynchronous motor, when operation winding and starting winding When passing through single-phase alternating current, since capacitor effect keeps the electric current in starting winding more advanced than running the electric current of winding in time An angle of 90 degrees first reaches maximum value.Two identical pulsed magnetic fields are formed over time and space, make the gas between stator and rotor A rotating excitation field is produced in gap, and under the action of rotating excitation field, induced current, electric current and rotation are generated in 21 rotor of motor Magnetic field interaction generates electromagnetic field torque, rotates motor 21.I.e. starter 23 is powered not just for power device 2, Or the key for starting power device 2 is equipped with a mounting groove for installing electricity as a kind of selection on the surface of motor 21 Source module 23, power module 23, which is packed into after mounting groove, closes mounting groove by capacitance cover, the side wall of mounting groove equipped with for The opening of power supply line connection；The specific connection type of starter 23 and power device is also possible to other any appropriate structures.

Further, the type of motor 21 is abundant, and the motor 21 that this high-lift pump uses is not limited to single-phase different Motor is walked, direct current generator, asynchronous machine, synchronous motor etc. can also be used.

As shown in figure 8, end cap 22 includes the lid 221 being connected with motor 21 and the protrusion ring 222 being connected with connector 5, Prominent ring 222 is provided with oil sealing rouge, avoids sewage from entering protrusion by the gap between connector 5 and end cap 22 by oil sealing rouge In ring 222 and then enter in motor 21.

In the specific embodiment that the disclosure provides, the water pump can be structured as any appropriate structure.As one Kind selection, as shown in Figures 1 to 9, there are two the water pumps, and the power device 2 is equipped with defeated correspondingly with two water pumps Outlet.The water pump includes intake pump 3 and water outlet pump 4, the intake pump 3 and the water outlet pump 4 by connector 5 with it is described End cap 22 is connected, and the intake pump 3 is connected with one end of the output shaft, the other end of the water outlet pump 4 and the output shaft It is connected.

Water pump is one of core component of this high-lift pump, is directly contacted with sewage；Illustrate by taking intake pump 3 as an example below The structure of water pump:

Due to the setting of the first water inlet connector 33, the specifically presence of the first stationary knife 332, due to connecting plate 331 On be not provided with corresponding link position and for water inlet sequence, sewage flows through after connecting plate 331, it will passes through first It is flowed into after stationary knife 332 in first pump housing 31, and the first stationary knife 332 is arranged between connecting plate 331 and first pump housing 31, that is, connects The position of the plate body 331a of 331 end of plate；Fixed requirement is needed in conjunction with actual design and the first stationary knife 332, then feasible One of solution be exactly position on first pump housing 31 designed for connection, specifically, since first pump housing 31 needs The first impeller 32 intake and be arranged in first pump housing 31 is connected with motor 21, and the first inlet opening 311 is provided on the pump housing, First inlet opening, 311 one end is the water inlet end being connected with the first water inlet connector 33, and the other end is the company being connected with power device 2 Connect end；Water inlet end and connecting pin are etc. big to facilitate processing under normal circumstances, but in view of the installation of the first stationary knife 332 needs, The aperture of water inlet end is less than the aperture of connecting pin on first inlet opening 311, i.e., be equivalent on water inlet end secured one with The plate of the concordant aperture of water inlet end, the plate are used to be connected with the first stationary knife 332 in first pump housing 31.

For water outlet pump 4, the third apopore 431b of the second stationary knife 432 and water inlet lid 431 is on second pump housing 41 Projection is circles coaxial and that diameter is different, so the position for connection to be also arranged on second pump housing 41, on second pump housing 41 It is also required to make the structure of similar first pump housing 31.

The difference of first pump housing 31 and second pump housing 41 in structure is that the difference of water inlet end: being with power device 2 Center, then the water inlet end of the water inlet end of first pump housing 31 and second pump housing 41 is on the outside, when first pump housing 31 and the second pump When body 41 is placed in the same plane, from the side, the water inlet end of first pump housing 31 is in left side, then the water inlet of second pump housing 41 End is just on right side.

Further, due to the form that intake pump 3 and water outlet pump 4 are arranged, the first inlet opening 311 and the second inlet opening 411 are It is symmetrically arranged, i.e., power device 2 in centre and the pump housing at both ends, then the water inlet end of the first inlet opening 311 and the second water inlet The water inlet end in hole 411 is that on the outside, and the connecting pin of the connecting pin of the first inlet opening 311 and the second inlet opening 411 is in inside.

Further, as shown in Fig. 3 to Fig. 6 and Fig. 9, by taking the first impeller 32 as an example, the first impeller 32 passes through motor 21 Output shaft be rotatably provided in first pump housing 31, be furthermore 311 side of the first inlet opening in the first inlet opening 311 The first apopore 312 being connected to the first inlet opening 311 has been opened up, in order to guarantee that intake pump 3 does not block as far as possible in operation, the One inlet opening 311 and the first apopore 312 are all smooth arcs, and the joint face of the first inlet opening 311 and the first apopore 312 is all It is smooth connection, avoids unsmooth, rough surface, projecting surface etc. to influence the appearance of factor of drainage flow as far as possible, guarantee as far as possible Intake pump 3 does not block.

Impeller had both referred to the wheel disc equipped with movable vane, was the component part of impulse turbine rotor, and can be with finger wheel disk and peace The general name of the moving blade 322 of dress thereon.The first impeller 32 that this high-lift pump uses is by blade 322, front cover 321 The double shrouded wheel formed with rear cover 323,32 center of the first impeller is provided with the through-hole for being connected with output shaft, sets on front cover 321 There is bulge loop, bulge loop open interior is connected with blade 322, is directly entered sewage in the first impeller 32, and the first impeller 32 is being mounted on When in first pump housing 31, bulge loop is aligned with the water inlet end of the first inlet opening 311, avoids sewage from first pump housing 31 and front cover 321 Gap enter in the pump housing the abundant acceleration for making sewage not pass through the first impeller 32, and then make improve lift effect it is unknown It is aobvious.For double shrouded wheel under same 322 pattern of blade and loading condiction, efficiency is higher than half-opened impeller, while controllability and reliable Property be better than half-opened impeller, but manufacturing process is complicated.

Further, the first impeller 32 is other than double shrouded wheel, and there are also the types such as half-opened impeller, unshrouded impeller, this height Lift water pump can select different types of impeller to meet actual use condition according to the condition of actual treatment sewage.

The structure of second impeller 42 is consistent with 32 structure of the first impeller, and only installation direction is different from the first impeller 32.

In the specific embodiment that the disclosure provides, the connector 5 can be structured as any appropriate structure.As A kind of selection, as shown in Figures 1 to 6, the connector 5 is ring flange.Ring flange, i.e. flange are a kind of common connections zero Part is usually used in being connected with each other between axis and axis, for the connection etc. between pipe end, also has with the flange on equipment is imported and exported, For the connection between two equipment；It uses the connection of flange i.e. a kind of form of flanged joint, flanged joint refers to It two pipelines, pipe fitting or equipment, is first individually fixed on a ring flange, flange is then added between two ring flanges Two ring flanges are finally tensed a kind of dismountable connection type for making it combine closely with bolt by pad；Flanged joint There are convenient disassembly, intensity height, good airproof performance, in conjunction with this high-lift pump, while ring flange plays connection function, Motor 21 and water pump are separated, prevent sewage from flowing into the normal use that motor 21 influences motor 21, simultaneously because ring flange is just In disassembly the characteristics of, also just facilitate this high-lift pump maintenance, maintenance.Further, the type of connector 5 is abundant, also Ferrule-type compression joint, screwed pipe joint etc., this high-lift pump can also specifically be connected in conjunction with actual service conditions, reasonable selection The type of part 5.

In the specific embodiment that the disclosure provides, the intake pump 3 can be structured as any appropriate structure.As A kind of selection, shown in as shown in Figure 1 to Figure 4, Fig. 7 to Fig. 9, the intake pump 3 includes first pump housing 31, first water inlet, 33 and of connector First impeller 32, first pump housing 31 is equipped with the first inlet opening 311 and what is be connected to first inlet opening 311 first go out Water hole 312, the water inlet end of first inlet opening 311 are connected with the first water inlet connector 33, first inlet opening 311 Installation end be connected with the connector 5, first impeller 32 in first pump housing 31 and the output shaft are set It is connected.

Centered on power device 2, it is connected by connector 5 with end cap 22 on the inside of first pump housing 31 of intake pump 3, motor 21 output shaft passes through connector 5 and is connected with the first impeller 32 being arranged in first pump housing 31 and the first impeller 32 is driven to carry out Rotation, the outside of first pump housing 31 are connected with the first water inlet connector 33.Intake pump 3 is by the first impeller 32 of rotation to sewage First time acceleration is carried out, energy possessed by sewage is increased, meanwhile, the face of first pump housing 31 and waste water, i.e., the first water inlet Hole 311 and the first apopore it is 312 smooth as far as possible, without protrusion, impulse- free robustness, and the first inlet opening 311 and the first apopore 312 connect Contacting surface is smooth joint face, to reduce the frictional resistance after sewage is contacted with first pump housing 31 as far as possible, while namely anti- Only intake pump 3 blocks.

The first water inlet connector 33 includes connecting plate 331 and the first stationary knife 332, and the connecting plate 331 includes and institute Several connectors 331b, the plate body 331a for stating the connected plate body 331a of first pump housing 31 and being connected with the plate body 331a It is the cavity ring that center is equipped with mounting hole, the outer rim of the plate body 331a and the water inlet end of first inlet opening 311 match；

First stationary knife 332 is the circular slab of grafting in the mounting hole, and first stationary knife 332 is equipped with first Inlet through hole, and the edge of first stationary knife 332 is equipped with the first uniformly distributed fixation hole.

First water inlet connector 33 is divided to for two parts, i.e. connecting plate 331 and the first stationary knife 332,331 company of playing of connecting plate Effect is connect, i.e., water inlet pipe 1 is connected with this high-lift pump, the setting of connector 331b increases water inlet pipe 1 and connecting plate 331 Contact area, while convex block is equipped on the inside of connector 331b, which gradually increases along water inlet direction height, and convex block is set Set and elastic deformation occur after fastening water inlet pipe 1 and connecting plate 331, so due to restore elastic deformation and increase water inlet pipe 1 with Active force between connecting plate 331, and then prevent the gap between water inlet pipe 1 and connecting plate 331 from the case where leak occur.

First stationary knife 332 is circular slab, is uniformly provided with several the first inlet through hole centered on the circular slab center of circle, first To be completely covered that 32 center of the first impeller opens up on the inside of inlet through hole after the installation of the first stationary knife 332 for connecting the first impeller 32 and output shaft connecting hole, matching loose between the first impeller 32 and output shaft is made after avoiding water from flowing into；Sewage passes through First inlet through hole flows into first pump housing 31, while the first inlet through hole outer diameter matches with the bulge loop on the first impeller 32, To avoid sewage from entering the pump housing from the gap of first pump housing 31 and front cover 321；Simultaneously close to the on the outside of the first inlet through hole One stationary knife, 332 marginal position is uniformly provided with several first fixation holes centered on the circular slab center of circle and is used for the first stationary knife 332 Be connected with the water inlet end of the first inlet opening 311, the first fixation hole can be screw hole or unthreaded hole, specifically according to connection type and It is fixed.

In the specific embodiment that the disclosure provides, the water outlet pump 4 can be structured as any appropriate structure.As A kind of selection, as shown in Fig. 1 to Fig. 2, Fig. 5 to Fig. 9, the water outlet pump 4 includes second pump housing 41, second water inlet, 43 and of connector Second impeller 42, second pump housing 41 is equipped with the second inlet opening 411 and what is be connected to second inlet opening 411 second go out Water hole 412, the water inlet end of second inlet opening 411 are connected with the second water inlet connector 43, second inlet opening 411 Installation end be connected with the connector 5, second impeller 42 in second pump housing 41 and the output shaft are set It is connected.

Centered on power device 2, it is connected by connector 5 with end cap 22 on the inside of second pump housing 41 of water outlet pump 4, motor 21 output shaft passes through connector 5 and is connected with the second impeller 42 being arranged in second pump housing 41 and the second impeller 42 is driven to carry out Rotation, the outside of second pump housing 41 are connected with the second water inlet connector 43.Water outlet pump 4 is by the second impeller 42 of rotation to sewage It carries out second to accelerate, increases energy possessed by sewage, meanwhile, the face of second pump housing 41 and waste water, i.e., the second water inlet Hole 411 and the second apopore it is 412 smooth as far as possible, without protrusion, impulse- free robustness, and the second inlet opening 411 and the second apopore 412 connect Contacting surface is smooth joint face, to reduce the frictional resistance after sewage is contacted with second pump housing 41 as far as possible, while namely anti- Only water outlet pump 4 blocks.

The second water inlet connector 43 includes water inlet lid 431 and the second stationary knife 432, and the water inlet lid 431 is equipped with the Three inlet opening 431a and the third apopore 431b, the third inlet opening 431a that are connected to second inlet opening 411 and institute State the first apopore 312 by the water pipe 1 be connected to, the third apopore 431b be connected to second inlet opening 411 and Match；

Second stationary knife 432 is the circular slab for being fixed on the water inlet end of second inlet opening 411, second stationary knife 432 are equipped with the second inlet through hole, and the edge of second stationary knife 432 is equipped with the second uniformly distributed fixation hole.

Second water inlet connector 43 is divided to for two parts, i.e. water inlet lid 431 and the second stationary knife 432, the structure for lid 431 of intaking Similar with the structure of the pump housing, distinctive points are that the third apopore 431b into water lid 431 is not to get through, with power device 2 Centered on, then water inlet lid 431 third apopore 431b on the outside of be it is closed, such sewage will not just leak.

Second stationary knife 432 is consistent with the first stationary knife 332 in structure, installation requirement and effect.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

The utility model is not limited to above-mentioned optional embodiment, anyone can obtain under the enlightenment of the utility model Other various forms of products, however, making any variation in its shape or structure, all the utility model rights that falls into are wanted The technical solution in confining spectrum is sought, is all fallen within the protection scope of the utility model.

Claims (8)

1. a kind of high-lift pump, it is characterised in that: including power device (2) and at least two water pumps, the power device (2) Equipped with water pump one-to-one correspondence and for driving the power output end of water pump to pass sequentially through between water pump according to the direction of water flow Water pipe (1) is connected；

There are two the water pumps, and the power device (2) is equipped with and two one-to-one output ends of water pump；

The power device (2) includes a double output shaft electric machine, and two output ends of power device (2) are respectively power device (2) both ends of output shaft.

2. high-lift pump according to claim 1, it is characterised in that: the power device (2) further includes end cap (22) With the starter (23) being electrically connected with the power device (2), power device (2) both ends are equipped with to be connected with the water pump End cap (22), the output shaft of the power device (2) passes through the end cap (22) and is connected with the water pump.

3. high-lift pump according to claim 2, it is characterised in that: the water pump includes intake pump (3) and water outlet pump (4), the intake pump (3) and the water outlet pump (4) are connected by connector (5) with the end cap (22), the intake pump (3) it is connected with one end of the output shaft, the water outlet pump (4) is connected with the other end of the output shaft.

4. high-lift pump according to claim 3, it is characterised in that: the connector (5) is ring flange.

5. high-lift pump according to claim 3, it is characterised in that: the intake pump (3) include first pump housing (31), First water inlet connector (33) and the first impeller (32), first pump housing (31) equipped with the first inlet opening (311) and with institute State the first apopore (312) of the first inlet opening (311) connection, the water inlet end and described first of first inlet opening (311) Intaking, connector (33) are connected, and the installation end of first inlet opening (311) is connected with the connector (5), are arranged described First impeller (32) in first pump housing (31) is connected with the output shaft.

6. high-lift pump according to claim 5, it is characterised in that: first water inlet connector (33) includes connection Plate (331) and the first stationary knife (332), the connecting plate (331) include the plate body (331a) being connected with first pump housing (31) Several connectors (331b) being connected with the plate body (331a), the plate body (331a) are the skies that center is equipped with mounting hole Thimble, the outer rim of the plate body (331a) and the water inlet end of first inlet opening (311) match；

First stationary knife (332) is the circular slab of grafting in the mounting hole, and first stationary knife (332) is equipped with first Inlet through hole, and the edge of first stationary knife (332) is equipped with the first uniformly distributed fixation hole.

7. high-lift pump according to claim 5, it is characterised in that: the water outlet pump (4) include second pump housing (41), Second water inlet connector (43) and the second impeller (42), second pump housing (41) equipped with the second inlet opening (411) and with institute State the second apopore (412) of the second inlet opening (411) connection, the water inlet end and described second of second inlet opening (411) Intaking, connector (43) are connected, and the installation end of second inlet opening (411) is connected with the connector (5), are arranged described Second impeller (42) in second pump housing (41) is connected with the output shaft.

8. high-lift pump according to claim 7, it is characterised in that: second water inlet connector (43) includes water inlet (431) and the second stationary knife (432) are covered, the water inlet lid (431) is equipped with third inlet opening (431a) and intakes with described second The third apopore (431b) of hole (411) connection, the third inlet opening (431a) and first apopore (312) pass through institute Water pipe (1) connection is stated, the third apopore (431b) is connected to and matches with second inlet opening (411)；

Second stationary knife (432) is the circular slab for being fixed on the water inlet end of second inlet opening (411), second stationary knife (432) it is equipped with the second inlet through hole, and the edge of second stationary knife (432) is equipped with the second uniformly distributed fixation hole.