CN208595073U - A kind of intelligence centrifugal pump - Google Patents

Abstract

The utility model provides a kind of intelligent centrifugal pump, belongs to water pump technology.It solve existing water pump take up a large area, the technical problems such as use cost height.This centrifugal pump includes the pump housing, and motor and pump chamber are provided in the pump housing, and the output shaft of motor extends in pump chamber, and several groups impeller assembly is fixed on output shaft；The water inlet pipe and water injection pipe being connected are also provided on the pump housing, reflux lid is provided in the pump housing, reflux road is offered in reflux lid, the one end in reflux road is connected with water inlet pipe, the other end in the reflux road is connected with pump chamber, return valve is movably set in reflux road, return valve can seal reflux road under the effect of the pressure of pump chamber, be additionally provided with the outlet pipe being connected with pump chamber on the pump housing.The utility model has the advantages that occupied area is small, use cost is low etc..

Description

A kind of intelligence centrifugal pump

Technical field

The utility model belongs to water pump technology, is related to a kind of intelligent centrifugal pump.

Background technique

When Ordinary Centrifugal Pumps work in the environment for having suction head, need to be formed vacuum in suction line, method has It is several below:

1, vacuum pump is installed, is emptied the air in inlet pipeline with vacuum pump.The disadvantage is that investment is big, land occupation face adds Greatly, it is not easy to realize and automatically control；

2, negative-pressure vacuum drainage tank is installed, using the volume of vacuum diversion volume, the air in inlet pipeline is emptied.It is lacked Point is that investment is big, and land occupation face increases.

Therefore, existing centrifugal pump in the environment with certain altitude difference in use, in order to by pipeline air empty, Occupied area is larger, and use cost is also larger.

Utility model content

The utility model aiming at the above problems existing in the prior art, provides a kind of intelligent centrifugal pump, the utility model The technical problem to be solved is that: the occupied area of this centrifugal pump how is reduced, the use cost of this centrifugal pump is reduced.

The utility model aim can be realized by the following technical scheme:

A kind of intelligence centrifugal pump, the centrifugal pump includes the pump housing, and motor and pump chamber, the motor are provided in the pump housing Output shaft extend in pump chamber, several groups impeller assembly is fixed on the output shaft；It is also provided on the pump housing connected Logical water inlet pipe and water injection pipe, is provided with reflux lid in the pump housing, the reflux cover in offer reflux road, the reflux road One end be connected with water inlet pipe, the other end in the reflux road is connected with the pump chamber, is movably set in the reflux road Return valve, the return valve can seal the reflux road under the effect of the pressure of pump chamber, be additionally provided on the pump housing and institute State the outlet pipe that pump chamber is connected.

Its working principles are as follows: this centrifugal pump is when in use, water injection pipe can be first passed through and filled the water in the pump housing, until reflux It is filled with water in road, pump chamber etc., gas-liquid is preferably mixed, the return valve covered that flows back at this time is in opening State；Then start water pump, motor will drive impeller assembly high-speed rotation, so that gas-liquid separation, lighter gas passes through water outlet Pipe discharge, and heavier water then the gravity the effects of under be back in pump chamber, and be back at close water inlet pipe by the road that flows back, Mixed once is carried out again with the air in pipeline, and gas-liquid separation, exhaust are then carried out by impeller assembly again, followed repeatedly Ring, until the air in pipeline is drained.Impeller assembly continues to rotate, and the pressure in pump chamber is gradually increased, until by return valve Push up back inside, sealing reflux road, the water in pump chamber is then no longer back at water inlet pipe at this time, the water in pipeline can through water inlet pipe, It is outer that impeller assembly, pump chamber and outlet pipe drain into pump.Compared with prior art, the design is passed through by the effect of water circulation in pumping Air in pipeline is discharged the principle of self-priming, and without adding the equipment such as vacuum pump, drainage tank, occupied area is smaller, uses Cost is relatively low.

In a kind of above-mentioned intelligent centrifugal pump, the reflux lid includes lid, and the reflux road includes being opened in lid Interior intake antrum and runner one, the intake antrum are connected with water inlet pipe, and the runner one is connected with intake antrum；The lid Side wall on also there is return pipe, offer the runner two being connected with the runner one, the return valve in the reflux road It is movably set in runner two, the side wall of the return pipe is also provided at least one return port being connected with the pump chamber. Compared with prior art, the reflux lid in the design, by opening up return port on the side wall of return pipe, the water of reflux can pass through The return port flows into, and realizes the connection of the water in the water and pump chamber of intake antrum, the area of section of water flow is bigger, can effectively save water Return time, improve reflux efficiency.

In a kind of above-mentioned intelligent centrifugal pump, the return port is 3, and is uniformly divided along the circumferential of the return pipe Cloth.Return port design has 3 and is uniformly distributed, and can further increase the water to flow back in the unit time, improves reflux efficiency.

In a kind of above-mentioned intelligent centrifugal pump, boss one is provided on the side wall of the lid, the runner one opens up In in the boss one, the inner wall of the boss one and return pipe is combined the mounting groove to form annular；Setting in the return pipe There is spring one, the upper end of the spring one is embedded in mounting groove, and the lower end of the spring one is connected with the return valve, when In the open state, the highest point of the return port is higher than the sealing surface of the return valve to the return valve.When pump chamber, impeller When being filled with water in component and intake antrum, internal pressure reaches unanimity, and return valve can be under the action of spring one in opening State, and the highest point of return port is higher than the sealing surface of return valve, then water flow, which has been effectively ensured, to be passed through；And work as impeller assembly And pressure in pump chamber, when increasing, return valve can overcome the elastic force of spring one to move inside under the effect of the pressure, seal runner One.

In a kind of above-mentioned intelligent centrifugal pump, sealing ring one is arranged on the sealing surface of the return valve.Design has close After seal one, the sealing performance of this return valve can be improved.

In a kind of above-mentioned intelligent centrifugal pump, the water inlet end of the lid is provided in the axial direction with annular groove, the pump It is provided with the boss two being embedded in the annular groove in vivo, sealing ring two is provided between the annular groove and boss two. When assembly, which can be butted on the pump housing；Due to the annular groove be it is axially disposed, installation flow back Gai Shi is axially to assemble with the pump housing, and compared with the mode that radially loading is matched, assembly difficulty is smaller.

In a kind of above-mentioned intelligent centrifugal pump, outlet valve and spring two, the spring two are provided in the outlet pipe Lower end be connected with outlet valve, the upper end of the spring two is connected with the tube wall of outlet pipe.After design has outlet valve, self-priming When, outlet valve can be opened spilling by gas, and liquid is fallen after rise under gravity；And when water pump normally absorbs water, water flow can The outlet valve is opened into outflow.

In a kind of above-mentioned intelligent centrifugal pump, the impeller assembly includes blower inlet casing, has in the blower inlet casing and is arranged In upper cover, lower cover and guide vane on motor output shaft, the upper cover is fixed on lower lid, and is formed and supplied between the output shaft The gap one that liquid passes through, the lower cover are fixed on output shaft, have the gap two passed through for liquid on the blower inlet casing.Electricity Machine rotation, can drive upper cover, lower cover etc. to rotate, and the liquid in pipeline can sequentially enter next stage leaf by gap one and gap two Wheel assembly is finally flowed out from outlet pipe.

In a kind of above-mentioned intelligent centrifugal pump, the center of the upper cover is equipped with boss three, and the center of the boss three is opened Equipped with through-hole one, the upper cap upper surface is equipped at least two lug bosses one, and activity cooperation is also arranged on the boss three Floating choma, the floating choma can recline with one phase of lug boss, and the center of the lower cover is equipped with boss four, the boss four It is interspersed in through-hole one, the center of the boss four offers the through-hole two matched with the output shaft of motor, the lower cover court Several blades are equipped with to the one side of upper cover.When being centrifuged pump startup, floating choma that impeller is equipped with can rapidly and impeller It separates and reclines with reflux lid, the gap of impeller and reflux lid junction reduces, so that the indoor water of impeller is not easy to flow back, improves The working efficiency of water pump, because floating choma can be separated rapidly with impeller, so that the two is not likely to produce biggish frictional force, The two is reduced because the effect of frictional force is mutually worn.

In a kind of above-mentioned intelligent centrifugal pump, the lug boss one is evenly spaced on around the center line of boss three, phase It is combined with each other between adjacent two lug bosses one and forms groove one.Lug boss one is evenly spaced on and forms groove one to reduce The contact area of floating choma and impeller, enables floating choma to separate rapidly when pasting with impeller, the two is not likely to produce Biggish frictional force reduces the two because the effect of frictional force is mutually worn.

In a kind of above-mentioned intelligent centrifugal pump, the upper surface of the upper cover is equipped at least two through-holes three, the blade It is equipped with the positioning pin being interspersed in through-hole three, the lower surface of the upper cover is equipped at least two grooves two, sets on the blade There is the lug boss two being clamped with groove two.Through-hole three, positioning pin, groove two and lug boss are set second is that in order to make upper cover and lower cover It can be fitted close, so that upper cover is consistent with lower cover revolving speed when centrifugation pump work, to improve the working efficiency of centrifugal pump.

In a kind of above-mentioned intelligent centrifugal pump, the upper cover, boss three and lug boss one are integrally formed.Upper cover one at Type makes impeller installation, convenient disassembly, and component is simple with changing.

In a kind of above-mentioned intelligent centrifugal pump, the lower cover, blade and boss four are integrally formed.Lower cover integrated molding makes Impeller installation, convenient disassembly are obtained, component is simple with changing.

In a kind of above-mentioned intelligent centrifugal pump, control assembly is provided in the pump housing, the control assembly lower section is solid Surely there is sleeve, support frame is provided in the sleeve, support frame as described above includes fixed ring one and fixed ring that be coaxial and being fixedly connected with Two, the fixed ring one includes inner ring one and the outer ring one of coaxial arrangement, is had between the inner ring one and outer ring one for liquid By flow-through cell one, the lug boss three that there are several to be spaced apart for the outer surface of the outer ring one, two neighboring protrusion The groove three passed through for liquid is formed between portion three；The fixed ring two includes inner ring two and the outer ring two of coaxial arrangement, described There is the flow-through cell two passed through for liquid, the inner ring one and inner ring two are combined with each other in formation between inner ring two and outer ring two Chamber, the motor are fixed in the inner cavity.Liquid in pump chamber can pass sequentially through flow-through cell one and flow-through cell two, to being located at Motor in inner cavity is cooled down；In addition, the liquid in pump chamber can also cool down control assembly, further by groove Improve cooling and cooling effect.

In a kind of above-mentioned intelligent centrifugal pump, stator sleeve, the motor grafting are arranged in the inner cavity of support frame as described above In the stator sleeve.After design has stator sleeve, it can avoid liquid and flow into inside electric machine assembly, influence the normal performance of motor.

In a kind of above-mentioned centrifugal pump, fore-stock and rear end cap are additionally provided in the pump housing, the fore-stock is located at It between pump chamber and support frame, and is fixedly connected with the fixed ring of support frame as described above one, is also provided with coolant flow channel on the fore-stock, The front end of the coolant flow channel is connected with pump chamber, and the rear end of the coolant flow channel is connected with flow-through cell one and groove three, Sealing ring three is provided between the fore-stock, fixed ring one and stator sleeve；The fixed ring two is fixedly connected with rear end cap, described Sealing ring four is provided between rear end cap, fixed ring two and stator sleeve.Liquid in pump chamber, can under the action of impeller assembly, It is flowed into flow-through cell one, and is flow at flow-through cell two by the coolant flow channel on fore-stock, motor cooled down, together When, which can also be flowed at groove three by coolant flow channel, be cooled down to control assembly；Design has sealing ring three and sealing After circle four, it can effectively avoid liquid and enter its performance of motor internal influence.

In a kind of above-mentioned centrifugal pump, the stator sleeve is integrally formed structures.The utility model is integrally formed Stator sleeve, since there is no weld part, more preferably, structural strength is higher for waterproof performance, and the service life is longer.

In a kind of above-mentioned intelligent centrifugal pump, the fixed ring one and fixed ring two are all made of plastics and are made.Due to branch When being installed in support, it usually needs a sleeve is added outside, and there are errors for the handling ease of sleeve, by fixed ring one and admittedly Determine ring two and be designed as plastic part, and design lug boss three in fixed ring one, the fitting surface between sleeve can be effectively reduced, and And even if sleeve is there are error, fixed ring one can also be met by the micro deformation of itself is assembled, and reduces assembly difficulty.

In a kind of above-mentioned intelligent centrifugal pump, the flow-through cell one includes through-hole four and through-hole five, the through-hole four Between lug boss three and inner ring one, the through-hole five is between two adjacent lug bosses three.Pump chamber and impeller assembly In liquid can be cooled down by through-hole four and through-hole five.

In a kind of above-mentioned intelligent centrifugal pump, the lug boss three is uniformly distributed around the center line of fixed ring one, and phase The mounting hole one for connector is offered between adjacent two lug bosses three.Lug boss three is uniformly distributed, and can avoid fixing There is the problem of stress raisers in ring one, improves the intensity of fixed ring one.

In a kind of above-mentioned intelligent centrifugal pump, the flow-through cell two includes between the outer ring two and inner ring two Annular groove, also there is ring stiffener that the annular groove is divided into two between the outer ring two and inner ring two.Design has ring Shape slot and ring stiffener can improve the intensity of fixed ring two while guaranteeing that more liquid can circulate.

In a kind of above-mentioned intelligent centrifugal pump, it is provided on the ring stiffener and the outer ring two and inner ring two-phase The mounting portion of connection offers the mounting hole two for connector in the mounting portion.Mounting portion is designed at annular to add In strengthening tendons, and ring stiffener and outer ring two, inner ring two are connected together simultaneously, the same of area can be passed through increasing liquid as far as possible When, a variety of connection functions are played, cooling effect is improved.

In a kind of above-mentioned intelligent centrifugal pump, several T are arranged at intervals between the fixed ring one and fixed ring two Shape reinforcing rib.After design has T shape reinforcing rib, the integral strength of support frame can be improved.

In a kind of above-mentioned intelligent centrifugal pump, the water injection pipe and outlet pipe pass through U-shaped bolt respectively and connect with the pump housing, Its junction is provided with sealing ring five, and the upper surface of the water injection pipe and outlet pipe is provided with splash guard, and the splash guard passes through Buckle is connected with the shell of centrifugal pump.Outlet pipe and the pump housing are connected by U-shaped bolt, is connected by a snap splash guard and water pump Shell is easy assembly or disassembly, fixes, and can be used as standardized module and installed, improve work efficiency without screw, Reduce production cost.In addition, buckling relative to common hook-type, the protrusion and groove of strip arc are not easy to break, contact Area is bigger, and it is more firm to connect.

Compared with prior art, the utility model has the advantage that

1, the air in pipeline is discharged by the principle of self-priming by the effect of water circulation in pumping by the design, without The equipment such as vacuum pump, drainage tank are added, occupied area is smaller, and use cost is lower；

2, the reflux lid in the design, by opening up return port on the side wall of return pipe, the water of reflux can pass through this time Discharge orifice flows into, and realizes the connection of the water in the water and pump chamber of intake antrum, and the area of section of water flow is bigger, can effectively save returning for water The time is flowed, reflux efficiency is improved；

3, when being centrifuged pump startup, the floating choma that impeller is equipped with can be separated rapidly with impeller and be pasted with reflux lid It leans on, the gap of impeller and reflux lid junction reduces, so that the indoor water of impeller is not easy to flow back, improves the work effect of water pump Rate, so that the two is not likely to produce biggish frictional force, reduces the two because rubbing because floating choma can be separated rapidly with impeller The effect for wiping power is mutually worn；

4, integrally formed stator sleeve, since there is no weld part, more preferably, structural strength is higher for waterproof performance, uses Longer life expectancy；

5, when due to being installed in support frame, it usually needs a sleeve is added outside, and there is mistake in the handling ease of sleeve Fixed ring one and fixed ring two are designed as plastic part by difference, and lug boss three is designed in fixed ring one, can be effectively reduced and be covered Fitting surface between cylinder, and even if sleeve is there are error, fixed ring one can also be met by the micro deformation of itself assembles, drop Low assembly difficulty.

Detailed description of the invention

Fig. 1 is the sectional view of this centrifugal pump.

Fig. 2 is one of partial enlarged view of Fig. 1.

Fig. 3 is another partial enlarged view at another position Fig. 1.

Fig. 4 is the partial enlarged view of Fig. 3.

Fig. 5 is the structural schematic diagram of anti-stream lid.

Fig. 6 is the structural schematic diagram of support frame.

Fig. 7 is the structural schematic diagram of impeller assembly.

Fig. 8 is the perspective view of the explosion of impeller assembly.

Fig. 9 is the structural schematic diagram of upper cover.

In figure, 1, the pump housing；2, motor；3, pump chamber；4, output shaft；5, water inlet pipe；6, water injection pipe；7, reflux lid；8, it flows back Road；9, return valve；10, lid；11, intake antrum；12, runner one；13, return pipe；14, runner two；15, return port；16, boss One；17, mounting groove；18, spring one；19, sealing ring one；20, annular groove；21, boss two；22, sealing ring two；23, it is discharged Valve；24, spring two；25, blower inlet casing；26, upper cover；27, lower cover；28, guide vane；29, gap one；30, gap two；31, boss three； 32, through-hole one；33, lug boss one；34, floating choma；35, boss four；36, through-hole two；37, blade；38, groove one；39, lead to Hole three；40, positioning pin；41, groove two；42, lug boss two；43, control assembly；44, sleeve；45, support frame；46, fixed ring One；47, fixed ring two；48, inner ring one；49, outer ring one；50, flow-through cell one；51, groove three；52, inner ring two；53, outer ring Two；54, flow-through cell two；55, inner cavity；56, stator sleeve；57, fore-stock；58, rear end cap；59, coolant flow channel；60, sealing ring Three；61, sealing ring four；62, through-hole four；63, through-hole five；64, mounting hole one；65, annular groove；66, ring stiffener；67, pacify Dress portion；68, mounting hole two；69, T shape reinforcing rib；70, U-shaped bolt；71, sealing ring five；72, splash guard；73, lug boss three； 74, outlet pipe.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1, centrifugal pump includes the pump housing 1, motor 2 and pump chamber 3 are provided in the pump housing 1, the output shaft 4 of motor 2 prolongs It extends in pump chamber 3, several groups impeller assembly is fixed on output shaft 4；The water inlet pipe 5 being connected and note are also provided on the pump housing 1 Water pipe 6 is provided with reflux lid 7 in the pump housing 1, and reflux road 8 is offered in the lid 7 that flows back, and the one end in reflux road 8 is connected with water inlet pipe 5 Logical, the other end in the reflux road 8 is connected with pump chamber 3, is movably set with return valve 9 in the road 8 that flows back, return valve 9 can pump The pressure effect of chamber 3 is lower to seal reflux road 8, is additionally provided with the outlet pipe 74 being connected with pump chamber 3 on the pump housing 1.Preferably, note Water pipe 6 and outlet pipe 74 are connect by U-shaped bolt 70 with the pump housing 1 respectively, and junction is provided with sealing ring 5 71, water injection pipe 6 The upper surface of outlet pipe 74 is provided with splash guard 72, splash guard 72 is connected by buckling with the shell of centrifugal pump.

As shown in Fig. 2, Fig. 5, reflux lid 7 includes lid 10, and reflux road 8 includes 11 He of intake antrum being opened in lid 10 Runner 1, intake antrum 11 are connected with water inlet pipe 5, and runner 1 is connected with intake antrum 11；Also have on the side wall of lid 10 There is return pipe 13, offers the runner 2 14 being connected with runner 1 in the road 8 that flows back, return valve 9 is movably set in runner two In 14, the side wall of return pipe 13 is also provided at least one return port 15 being connected with pump chamber 3.In the present embodiment, return port 15 be preferably 3, and is uniformly distributed along the circumferential direction of return pipe 13.

Specifically, boss 1 is provided on the side wall of lid 10, runner 1 is opened in the boss 1, boss One 16 are combined the mounting groove 17 to form annular with the inner wall of return pipe 13；Spring 1, spring one are provided in return pipe 13 18 upper end is embedded in mounting groove 17, and the lower end of spring 1 is connected with return valve 9, when return valve 9 is in the open state When, the highest point of return port 15 is higher than the sealing surface of return valve 9.Sealing ring 1 is arranged on the sealing surface of return valve 9.Lid 10 water inlet end is provided in the axial direction with annular groove 20, and the boss 2 21 being embedded in the annular groove 20 is provided in the pump housing 1, Sealing ring 2 22 is provided between annular groove 20 and boss 2 21.Outlet valve 23 and spring 2 24 are provided in outlet pipe 74, The lower end of spring 2 24 is connected with outlet valve 23, and the upper end of spring 2 24 is connected with the tube wall of outlet pipe 74.

As Figure 1 and Figure 4, impeller assembly includes blower inlet casing 25, has in blower inlet casing and is sheathed on 2 output shaft 4 of motor Upper cover 26, lower cover 27 and guide vane 28, upper cover 26 are fixed on lower cover 27, and between being formed between output shaft 4 and passing through for liquid Gap 1, lower cover 27 are fixed on output shaft 4, have the gap 2 30 passed through for liquid on blower inlet casing 25.

Specifically, as shown in Fig. 7, Fig. 8, Fig. 9, the center of upper cover 26 is equipped with boss 3 31, and the center of boss 3 31 is opened Equipped with through-hole 1,26 upper surface of upper cover is equipped at least two lug bosses 1, and activity cooperation is also arranged on boss 3 31 Floating choma 34, floating choma 34 can recline with one 33 phase of lug boss, and the center of lower cover 27 is equipped with boss 4 35, boss 4 35 It is interspersed in through-hole 1, the center of boss 4 35 offers the through-hole 2 36 matched with the output shaft 4 of motor 2, lower cover 27 Several blades 37 are equipped with towards the one side of upper cover 26.Lug boss 1 is evenly spaced on around the center line of boss 3 31, adjacent It is combined with each other between two lug bosses 1 and forms groove 1.The upper surface of upper cover 26 is equipped at least two through-holes 3 39, leaf Piece 37 is equipped with the positioning pin 40 being interspersed in through-hole 3 39, and the lower surface of upper cover 26 is equipped at least two grooves 2 41, blade 37 are equipped with the lug boss 2 42 being clamped with groove 2 41.Upper cover 26, boss 3 31 and lug boss 1 are integrally formed.Lower cover 27, blade 37 and boss 4 35 are integrally formed.

As shown in Fig. 3, Fig. 6, it is provided with control assembly 43 in the pump housing 1, sleeve 44, sleeve are fixed with below control assembly 43 Support frame 45 is provided in 44, support frame 45 includes fixed ring 1 and fixed ring 2 47 that be coaxial and being fixedly connected with, fixed ring one 46 include inner ring 1 and the outer ring 1 of coaxial arrangement, has the circulation passed through for liquid between inner ring 1 and outer ring 1 Unit 1, the lug boss 3 73 that there are several to be spaced apart for the outer surface of outer ring 1, two neighboring lug boss 3 73 it Between form the groove 3 51 that passes through for liquid；Fixed ring 2 47 includes inner ring 2 52 and the outer ring 2 53 of coaxial arrangement, inner ring two There is the flow-through cell 2 54 passed through for liquid, inner ring 1 and inner ring 2 52 are combined with each other in formation between 52 and outer ring 2 53 Chamber 55, motor 2 are fixed in the inner cavity 55.Stator sleeve 56 is arranged in the inner cavity 55 of support frame 45, motor 2 is plugged in the stator In set 56.Fore-stock 57 and rear end cap 58 are additionally provided in the pump housing 1, fore-stock 57 between pump chamber 3 and support frame 45, and with The fixed ring 1 of support frame 45 is fixedly connected with, and coolant flow channel 59, the front end of coolant flow channel 59 and pump are also provided on fore-stock 57 Chamber 3 is connected, and the rear end of coolant flow channel 59 is connected with flow-through cell 1 and groove 3 51, fore-stock 57, fixed ring 1 And sealing ring 3 60 is provided between stator sleeve 56；Fixed ring 2 47 is fixedly connected with rear end cap 58, rear end cap 58, fixed ring 2 47 And sealing ring 4 61 is provided between stator sleeve 56.

Preferably, stator sleeve 56 is integrally formed structures.Fixed ring 1 and fixed ring 2 47 are all made of plastics system At.Flow-through cell 1 includes through-hole 4 62 and through-hole 5 63, and through-hole 4 62 leads between lug boss 3 73 and inner ring 1 Hole 5 63 is between two adjacent lug bosses 3 73.Lug boss 3 73 is uniformly distributed around the center line of fixed ring 1, and The mounting hole 1 for connector is offered between two neighboring lug boss 3 73.Flow-through cell 2 54 includes outside being located at The annular groove 65 between 2 53 and inner ring 2 52 is enclosed, is also with 65 1 points by the annular groove between outer ring 2 53 and inner ring 2 52 Two ring stiffener 66.It is provided with the mounting portion 67 being connected with outer ring 2 53 and inner ring 2 52 on ring stiffener 66, pacifies The mounting hole 2 68 for connector is offered in dress portion 67.It is arranged at intervals between fixed ring 1 and fixed ring 2 47 Several T shape reinforcing ribs 69.

The working principle of the utility model is as follows: this centrifugal pump when in use, can first pass through water injection pipe and fill the water in the pump housing, Until being filled with water in reflux road, pump chamber etc., gas-liquid is preferably mixed, at the return valve covered that flows back at this time In open state；Then start water pump, motor will drive impeller assembly high-speed rotation, so that gas-liquid separation, lighter gas Be discharged by outlet pipe, and heavier water then the gravity the effects of under be back in pump chamber, and be back to by the road that flows back close At water inlet pipe, mixed once is carried out again with the air in pipeline, gas-liquid separation, exhaust is then carried out by impeller assembly again, such as This iterative cycles, until the air in pipeline is drained.Impeller assembly continues to rotate, and the pressure in pump chamber is gradually increased, until Return valve is pushed up back inside, sealing reflux road, the water in pump chamber is then no longer back at water inlet pipe at this time, and the water in pipeline can be through It is outer that water inlet pipe, impeller assembly, pump chamber and outlet pipe drain into pump.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although the 1, pump housing is used more herein；2, motor；3, pump chamber；4, output shaft；5, water inlet pipe；6, water injection pipe； 7, reflux lid；8, flow back road；9, return valve；10, lid；11, intake antrum；12, runner one；13, return pipe；14, runner two； 15, return port；16, boss one；17, mounting groove；18, spring one；19, sealing ring one；20, annular groove；21, boss two；22, Sealing ring two；23, outlet valve；24, spring two；25, blower inlet casing；26, upper cover；27, lower cover；28, guide vane；29, gap one；30, Gap two；31, boss three；32, through-hole one；33, lug boss one；34, floating choma；35, boss four；36, through-hole two；37, leaf Piece；38, groove one；39, through-hole three；40, positioning pin；41, groove two；42, lug boss two；43, control assembly；44, sleeve； 45, support frame；46, fixed ring one；47, fixed ring two；48, inner ring one；49, outer ring one；50, flow-through cell one；51, groove Three；52, inner ring two；53, outer ring two；54, flow-through cell two；55, inner cavity；56, stator sleeve；57, fore-stock；58, rear end cap； 59, coolant flow channel；60, sealing ring three；61, sealing ring four；62, through-hole four；63, through-hole five；64, mounting hole one；65, annular Slot；66, ring stiffener；67, mounting portion；68, mounting hole two；69, T shape reinforcing rib；70, U-shaped bolt；71, sealing ring five； 72, splash guard；73, lug boss three；74, the terms such as outlet pipe, but it does not exclude the possibility of using other terms.Use these Term is used for the purpose of being more convenient to describe and explain the essence of the utility model；It is construed as any additional limit System is all contrary to the spirit of the present invention.

Claims (8)

1. a kind of intelligence centrifugal pump, which is characterized in that the centrifugal pump includes the pump housing (1), is provided with motor in the pump housing (1) (2) it extends in pump chamber (3), is fixed on the output shaft (4) several with pump chamber (3), the output shaft (4) of the motor (2) Group impeller assembly；It is also provided with the water inlet pipe (5) and water injection pipe (6) being connected on the pump housing (1), is set in the pump housing (1) It is equipped with reflux lid (7), reflux road (8), one end of reflux road (8) and water inlet pipe (5) phase are offered in the reflux lid (7) Connection, the other end in the reflux road (8) are connected with the pump chamber (3), are movably set with return valve in the reflux road (8) (9), the return valve (9) can seal the reflux road (8) under the effect of the pressure of pump chamber (3), also set on the pump housing (1) It is equipped with the outlet pipe (74) being connected with the pump chamber (3).

2. intelligence centrifugal pump according to claim 1, which is characterized in that the reflux lid (7) includes lid (10), described Reflux road (8) includes intake antrum (11) and the runner one (12) being opened in lid (10), the intake antrum (11) and water inlet pipe (5) it is connected, the runner one (12) is connected with intake antrum (11)；Also there is return pipe on the side wall of the lid (10) (13), the runner two (14) being connected with the runner one (12) is offered in reflux road (8), the return valve (9) is living Dynamic to be set in runner two (14), the side wall of the return pipe (13) is also provided at least one and is connected with the pump chamber (3) Return port (15).

3. intelligence centrifugal pump according to claim 1, which is characterized in that the impeller assembly includes blower inlet casing (25), institute Stating has upper cover (26), lower cover (27) and the guide vane (28) being sheathed on motor (2) output shaft (4) in blower inlet casing (25), described Upper cover (26) is fixed on lower cover (27), and the gap one (29) passed through for liquid is formed between the output shaft (4), described Lower cover (27) is fixed on output shaft (4), has the gap two (30) passed through for liquid on the blower inlet casing (25).

4. intelligence centrifugal pump according to claim 3, which is characterized in that the center of the upper cover (26) is equipped with boss three (31), the center of the boss three (31) offers through-hole one (32), and upper cover (26) upper surface is equipped at least two protrusions Portion one (33) is also arranged with the floating choma (34) of activity cooperation on the boss three (31), and the floating choma (34) can It mutually reclines with lug boss one (33), the center of the lower cover (27) is equipped with boss four (35), and the boss four (35) is interspersed in logical In hole one (32), the center of the boss four (35) offers the through-hole two (36) matched with the output shaft (4) of motor (2), The one side of the lower cover (27) towards upper cover (26) is equipped with several blades (37).

5. intelligence centrifugal pump according to claim 1, which is characterized in that be provided with control assembly in the pump housing (1) (43), it is fixed with sleeve (44) below the control assembly (43), is provided with support frame (45), the branch in the sleeve (44) Support (45) includes fixed ring one (46) and fixed ring two (47) that be coaxial and being fixedly connected with, and the fixed ring one (46) includes coaxial The inner ring one (48) of setting and outer ring one (49) have the stream passed through for liquid between the inner ring one (48) and outer ring one (49) Logical unit one (50), the lug boss three (73) that there are several to be spaced apart for the outer surface of the outer ring one (49) are two neighboring The groove three (51) passed through for liquid is formed between lug boss three (73)；The fixed ring two (47) includes the inner ring of coaxial arrangement Two (52) and outer ring two (53) have the flow-through cell two passed through for liquid between the inner ring two (52) and outer ring two (53) (54), the inner ring one (48) and inner ring two (52) intercombination are formed inner cavity (55), and the motor (2) is fixed on the inner cavity (55) in.

6. intelligence centrifugal pump according to claim 5, which is characterized in that be arranged in the inner cavity (55) of support frame as described above (45) Have stator sleeve (56), the motor (2) is plugged in the stator sleeve (56).

7. intelligence centrifugal pump according to claim 6, which is characterized in that be additionally provided with fore-stock in the pump housing (1) (57) be located between pump chamber (3) and support frame (45) with rear end cap (58), the fore-stock (57), and with support frame as described above (45) Fixed ring one (46) be fixedly connected with, be also provided with coolant flow channel (59) on the fore-stock (57), the coolant flow channel (59) Front end is connected with pump chamber (3), and the rear end of the coolant flow channel (59) is connected with flow-through cell one (50) and groove three (51), Sealing ring three (60) is provided between the fore-stock (57), fixed ring one (46) and stator sleeve (56)；The fixed ring two (47) it is fixedly connected with rear end cap (58), is provided with sealing between the rear end cap (58), fixed ring two (47) and stator sleeve (56) Enclose four (61).

8. intelligence centrifugal pump according to claim 1, which is characterized in that the water injection pipe (6) and outlet pipe (74) are respectively It is connect by U-shaped bolt (70) with the pump housing (1), junction is provided with sealing ring five (71), the water injection pipe (6) and outlet pipe (74) upper surface is provided with splash guard (72), and the splash guard (72) is connected by buckling with the shell of centrifugal pump.