CN205858710U - A kind of intelligence centrifugal multistage pump multiple centrifugal pump - Google Patents

Abstract

The utility model discloses a kind of intelligence centrifugal multistage pump multiple centrifugal pump, including: the pump housing, shell body, be runner between shell body and stator supporter；Coupling is connected with pump shaft；Impeller is plugged on pump shaft to rotate and is sucked from entrance by fluid and pressurize；Stator, is placed in stator supporter, collects to reduce flow velocity by the liquid pressurizeed by impeller and is discharged by outlet；Frequency conversion motor includes: the motor shaft of motor body and axially connection coupling, also includes the frequency-variable controller being integrally disposed in described motor body, and frequency conversion motor drives pump shaft to rotate by motor shaft and coupling.The frequency conversion motor of this invention is integrated by converter and motor body, decreases the volume of equipment, has saved cost of goods manufactured, saves installing space, improves the efficiency under centrifugal multistage pump multiple centrifugal pump components of system as directed operating mode and reduces the energy consumption of water pump system.

Description

A kind of intelligence centrifugal multistage pump multiple centrifugal pump

Technical field

The present invention relates to industrial liquid conveying and urban water supply and sewerage field, particularly relate to a kind of employing converter motor integrated The intelligent centrifugal multistage pump multiple centrifugal pump that the frequency conversion motor of one drives.

Background technology

Centrifugal multistage pump multiple centrifugal pump is applied to conveying and urban water supply and sewerage, the skyscraper pressurized water supply of industrial liquid, gardens sprinkling irrigation, The cold-warm waters such as fire fighting pressurization, long distance water, heating, bathroom are circularly-supercharged and coordinative composition of equipments and air conditioning unit circulation, cooling Water conveying etc..

During centrifugal multistage pump multiple centrifugal pump uses at present, major part is operated in power frequency rotating speed (50Hz).And apply (such as in reality Building living water) in, water pump system need not be operated in metered flow, rated head in the major part working time, and needs (flow that i.e. actual pump system needs is less than volume less than metered flow or required lift to be operated in partial load condition Determine lift), this can realize by reducing the rotating speed of centrifugal pump.For centrifugal pump, power of motor consumption approximation and rotating speed Cube be directly proportional.Centrifugal multistage pump multiple centrifugal pump constant speed is operated in power frequency and will result in the waste of the energy, thus increases the weight of the pollution to environment. Present solution is the scheme using common centrifugal multistage pump multiple centrifugal pump to add frequency-conversion control cabinet.Along with what energy-conserving and environment-protective required constantly carries Height, uses the situation of VFC centrifugal multistage pump multiple centrifugal pump and pump group to get more and more.But due to the introducing of converter, need design independent Frequency-conversion control cabinet for arrange converter and some auxiliary electronic devices and components.Thus make system become more complicated, and Owing to frequency-conversion control cabinet volume is bigger so that whole variable frequency water pump system installing space substantially increases.On the other hand, due to motor Being independent design with converter, motor and converter all do not operate at optimization shape as a system under major part operating mode State, under Part load, efficiency is on the low side.

The centrifugal multistage pump multiple centrifugal pump of the present invention uses converter and motor integrated form frequency conversion motor.On the one hand due to converter and electricity Machine one, can reduce frequency-conversion control cabinet volume, even removes frequency-conversion control cabinet, saves cost of goods manufactured, saves and installs sky Between.On the other hand motor and converter are as an Optimized System Design, it is considered to take into account frequency conversion while rated point optimization design The efficiency of motor partial load condition, improves the efficiency under centrifugal multistage pump multiple centrifugal pump components of system as directed operating mode, thus it is multistage to reduce intelligence The operating cost of centrifugal pump system.

The controller of the intelligent centrifugal multistage pump multiple centrifugal pump of the present invention devises powerful communication function: one, its controller uses nothing Intelligence multistage centrifugal pumping system is controlled by application program operation in line Bluetooth technology, it is achieved in mobile device, such as mobile phone； Two, its controller passes through GPRS(general packet radio service technology) transmit a signal to centralized-control center, it is achieved wireless remote Monitoring；Three, its controller realizes networking by industrial bus agreement (such as RS485, Modbus)；Four, the touch screen of its configuration Guidance panel realizes local operation.

Summary of the invention

For solving above-mentioned technical problem, it is an object of the invention to provide and a kind of be equipped with the change that motor inverter becomes one Frequently the centrifugal multistage pump multiple centrifugal pump of motor, motor and converter are as an Optimized System Design, it is considered to centrifugal multistage pump multiple centrifugal pump optimizes design point While take into account frequency conversion motor partial load condition, improve the efficiency under centrifugal multistage pump multiple centrifugal pump components of system as directed operating mode, improve frequency conversion The whole efficiency of water pump system, reduce energy consumption, thus reduce intelligence multistage centrifugal pumping system operating cost, improve frequency conversion from Efficiency under heart pump system Part load reduces operating cost；On the other hand due to converter and motor integral, it is possible to reduce control Cabinet processed amasss, and even removes frequency-conversion control cabinet in the case of single pump controls, and saves cost of goods manufactured, saves simultaneously and install sky Between.

For reaching above-mentioned purpose, technical scheme is as follows:

A kind of intelligence centrifugal multistage pump multiple centrifugal pump, including:

Shell body；

The pump housing, supports described shell body, and one end of the described pump housing is entrance；The other end of the described pump housing is outlet；Entrance Outlet

Pump shaft, pump shaft sleeve is connected to axle sleeve and spacer ring；

Sliding bearing, is socketed in outside described axle sleeve, is used for slidably supporting described pump shaft；

Coupling, is connected with described pump shaft, and outside frequency conversion motor drives described pump shaft to rotate by described coupling；

Impeller, be plugged on described pump shaft, and described pump shaft drives described wheel rotation, thus will suck from described entrance Fluid pressurizes；

Stator, the liquid pressurizeed by described impeller is collected through described stator and reduces flow velocity, is discharged by described outlet；

Stator supporter, supports and fixes described stator；

Described frequency conversion motor includes: the motor shaft of motor body and the axially described coupling of connection, also includes integrally disposed Frequency-variable controller in described motor body, described frequency conversion motor drives described pump shaft to turn by described motor shaft and coupling Dynamic.

Wherein, described frequency conversion motor is described frequency-variable controller and motor body integral type integrated morphology, and by the modern times Converter technique, thus change the rotating speed of motor to control flow and the lift of centrifugal multistage pump multiple centrifugal pump according to control signal.

Further, described frequency conversion motor also has wireless blue tooth module, realizes setting mobile by wireless blue tooth signal Operated by application program on standby (such as on mobile phone) and control intelligence multistage centrifugal pumping system.

Further, described frequency conversion motor also has GPRS module, by transmission GPRS signal to centralized-control center, real Existing wireless remote monitering.

Further, described frequency conversion motor also has COM1 based on industrial bus agreement, to realize networking.

Further, described frequency conversion motor equipped with touch panel device to realize local operation, easy to operate, user interface Friendly.

Further, described frequency-variable controller is bolted on described motor body and is integrally forming；External power source It is connected with described frequency-variable controller by being arranged on the power interface of described motor body；It is defeated that described motor body also has input Go out port for exporting the ancillary equipment in control signal control system；By the power supply of described frequency-variable controller frequency modulation by electricity Source terminal is connected the input for different frequency power supply with described motor body.

Wherein, described impeller is axially positioned by described axle sleeve and spacer ring.

Wherein, first impeller in described impeller is first stage impeller, and described first stage impeller is by being socketed in described pump shaft The axis head nut of end axially positions；Having multiple secondary impeller after described first stage impeller, last impeller is final stage leaf Wheel.

Wherein, described stator includes:

First stator, one end of described first stator is plugged on described sliding bearing, described in described first stator correspondence It it is first-level guide blade during first stage impeller；

Second stator, is secondary stator during the corresponding described secondary impeller of described second stator, during corresponding described impeller For final stage stator.

By technique scheme, the intelligent centrifugal multistage pump multiple centrifugal pump that the present invention provides, its frequency conversion motor is by converter and motor Integral therewith, and drive pump shaft to rotate by motor shaft and coupling, it has the advantage that 1. motor body and frequency conversion Device is as an integrated Optimized System Design, it is considered to centrifugal multistage pump multiple centrifugal pump is taken into account frequency conversion motor part and born while optimizing design point Lotus operating mode, improves the efficiency under centrifugal multistage pump multiple centrifugal pump components of system as directed operating mode, improves the whole efficiency of variable frequency water pump system, reduces Energy consumption, thus reduce the operating cost of intelligence multistage centrifugal pumping system, improve under frequency conversion centrifugal pump system Part load Efficiency and reduce operating cost；2. due to the integral type Integrated design of converter Yu motor body, the body of equipment is decreased Long-pending, save cost of goods manufactured, save installing space simultaneously.Additionally, the frequency conversion control of the intelligent centrifugal multistage pump multiple centrifugal pump of the present invention Device processed devises powerful communication function, including: 1. use wireless blue tooth technology, it is achieved that in mobile device, on such as mobile phone Intelligence multistage centrifugal pumping system is controlled by application program operation；2. by GPRS(general packet radio service technology) send letter Number to centralized-control center, it is achieved wireless remote monitering；3. group is realized by industrial bus agreement (such as RS485, Modbus) Net；4. realizing local operation by configuring the touch screen operation panel of friendly user's interface, easy to operate, user interface is friendly.

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make Accompanying drawing be briefly described.

Fig. 1 is the structural representation of the intelligent centrifugal multistage pump multiple centrifugal pump of the present invention；

Fig. 2 and 3 is the structural representation of the frequency conversion motor of the present invention.

In figure, numeral represents:

1. shell body 2. stator supporter 3. pump shaft

4. sliding bearing 5. mechanical seal 6. coupling

71/72/73. impeller 81/82/83. stator 9. frequency conversion motor

10. outlet 11. axis head nut 12. axle sleeves

13. pump housing 14. stretching screw 15. electric machine supports

20. entrance 21. runner 30. spacer rings

91. motor body 92. frequency-variable controller 93. motor shafts

94. power interface 95. input/output port 96. COM1

97. power supply terminal 98. bolts

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe wholely.

Fig. 1 is the schematic diagram of intelligence centrifugal multistage pump multiple centrifugal pump of the present invention, as it is shown in figure 1, the intelligent centrifugal multistage pump multiple centrifugal pump tool of the present invention Body includes: shell body 1, stator supporter 2, pump shaft 3, sliding bearing 4, mechanical seal 5, coupling 6, impeller 71/72/73, lead Leaf 81/82/83, frequency conversion motor 9, axis head nut 11, axle sleeve 12, the pump housing 13, stretching screw 14 and electric machine support 15.

Stator supporter 2 is positioned at shell body 1；Shell body 1 is solid by the pump housing 13 and electric machine support 15 by stretching screw 14 Fixed；One end of the pump housing 13 oral area is entrance 20, and the other end is outlet 10；The annular constituted between shell body 1 and stator supporter 2 Space is runner 21；Pump shaft 3 is contained in stator supporter 2, and pump shaft 3 is socketed with axle sleeve 12 and spacer ring 30；Sliding bearing 4 overlaps It is connected on outside axle sleeve 12, is used for slidably supporting pump shaft 3；Fluid in multistage pump high pressure chest is by being assemblied on electric machine support 15 Mechanical seal 5 is isolated with frequency conversion motor 9；Axle sleeve 12 is socketed on pump shaft 3, and the outside of axle sleeve 12 constitutes lubrication with sliding bearing 4 Film supports pump shaft 3 and rotates, thus machining accuracy is higher；The major function of spacer ring 30 is the axial location between impeller, thus Its processing request is relatively low.

Outside frequency conversion motor 9 is supported by electric machine support 15, is driven pump shaft 3 to rotate by motor shaft 93 by coupling 6；Leaf Wheel 71/72/73 is plugged on pump shaft 3, and pump shaft 3 impeller 71/72/73 rotates, thus is added by the fluid entered from entrance 20 Pressure；Stator 81/82/83 is contained in stator supporter 2, and the liquid after being pressurizeed by impeller 71/72/73 is through stator 81/82/ 83 collect and reduce flow velocity, and by outlet 10 discharge.

Concrete, the pump shaft 3 in suction side uses sliding bearing 4 to support by axle sleeve 12；With reference to Fig. 2 and 3, frequency conversion motor 9 include motor body 91, frequency-variable controller 92 and the motor shaft 93 integrated, and during work, drive connection by motor shaft 93 Connect device 6 and drive pump shaft 3 to rotate further, thus pumping liquid to the lift specified.

The first order impeller of centrifugal multistage pump multiple centrifugal pump suction side is first stage impeller 71, after there is multiple secondary impeller 72, finally One impeller is impeller 73；In order to improve the cavitation erosion performance of centrifugal multistage pump multiple centrifugal pump, first stage impeller 71 uses cavitation performance excellent Special hydraulic design, and secondary impeller 72 is identical with the design of impeller 73, and its design only considers that hydraulic efficiency is optimum.First Stator after level impeller 71 is first-level guide blade 81, and in like manner, the stator after secondary impeller 72 is secondary stator 82, after impeller 73 Stator be final stage stator 83.

First stage impeller 71 is axially positioned by axis head nut 11, passes through between first stage impeller 71 and first order secondary impeller 72 Axle sleeve 12 axially positions, and is axially positioned by spacer ring 30, and have many on impeller 71/72/73 inner ring between remaining each impeller Individual projection is radially fixed on multiple grooves of pump shaft 3, plays the function of transmission moment.

According to different impeller diameters and different progression, multiple sliding bearing 4 can be set, by adjusting sliding bearing The quantity of 4 is optimized, it is ensured that centrifugal multistage pump multiple centrifugal pump safe and stable operation.

The effect of stator 81/82/83 is that the liquid that impeller 71/72/73 is thrown away collects, and makes the flow velocity of liquid drop Low, after partial velocity can be changed into pressure energy, then it is uniformly introduced next stage or discharges feeding feed pipe through anemostat Net tubing, stator 81/82/83 makes liquid flow in continuous print runner, is not easily formed dead angle and diffusion suddenly, fluid speed Degree change ratio is more uniform, and hydraulic performance is good.

One end of the stator supporter 2 of the stator of some uses interference fit to fix with sliding bearing 4, and the other end is by string The mode of level positions, the stator supporter of such as first-level guide blade 81, and the stator supporter of sliding bearing 4 and first-level guide blade 81 is adopted By interference fit together；And one end of some stator does not has bearing, only one end positions by the way of tandem, such as Secondary stator 82 and the stator supporter of final stage stator 83；Stator 81/82/83 is fixed on stator supporter 2 by welding manner In.

With reference to Fig. 2 and 3, frequency-variable controller 92 is fixed on motor body 91 by bolt 98 and is integrally forming；According to reality To variable flow and the demand of lift in application, frequency conversion motor 9 is received by the input/output port 95 of frequency-variable controller 92 The rotating speed of feedback signal regulation motor body 91, thus realize the regulation of flow and lift, wherein, flow approximation just becomes with rotating speed Square being directly proportional of ratio, lift approximation and rotating speed；In order to realize the Consumer's Experience of close friend, frequency-variable controller 92 is provided with tactile Touch panel plate；In order to realize networking and communication, frequency-variable controller 92 devises wireless blue tooth technology, it is achieved lead on the mobile apparatus Crossing application program, such as hands hands-operation controls intelligence multistage centrifugal pumping system；It is general that frequency-variable controller 92 is provided with GPRS( Packet wireless service technology) module, transmit a signal to centralized-control center, it is achieved wireless remote monitering；Frequency-variable controller 92 is also Devise industrial bus agreement (such as RS485, Modbus) and realize constructing communication network by COM1 96；External power source is by electricity Source interface 94 is connected with frequency-variable controller 92, and the periphery in input/output port 95 the most exportable control signal control system sets Standby；Connected for different frequencies from motor body 91 by the power supply terminal 97 of motor by the power supply of frequency-variable controller 92 frequency modulation The input of rate power supply.

According to the requirement of pumped (conveying) medium, the centrifugal multistage pump multiple centrifugal pump of the present invention can be selected for corresponding material, such as rustless steel, titanium alloy Deng.

The pump shaft 3 of the centrifugal multistage pump multiple centrifugal pump of the present invention is directly driven by frequency conversion motor 9 by shaft coupling 6, and pump shaft 3 drives chopped-off head Impeller 71 and 72 liquid pumpings of middle multiple secondary impeller suck liquid to the lift specified, centrifugal multistage pump multiple centrifugal pump from entrance 20 After suck centrifugal multistage pump multiple centrifugal pump through first stage impeller 71, liquid through first stage impeller 71 pressurize after, enter through first-level guide blade 81 Secondary impeller 72 continues pressurization, then enters next stage impeller by secondary stator 82 and pressurizes, until being added by impeller 73 Pressing through and discharged by final stage stator 83 after journey terminates, last intelligence centrifugal multistage pump multiple centrifugal pump through shell body 1 and is led the liquid of high pressure Between leaf supporter 2 constitute runner 21 from outlet 10 feeding tubings.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention. Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one The widest scope caused.

Claims (10)

1. an intelligent centrifugal multistage pump multiple centrifugal pump, it is characterised in that including:

Shell body；

The pump housing, supports described shell body, and one end of the described pump housing is entrance；The other end of the described pump housing is outlet；

Pump shaft, described pump shaft sleeve is connected to axle sleeve and spacer ring；

Sliding bearing, is socketed in outside described axle sleeve, is used for slidably supporting described pump shaft；

Coupling, is connected with described pump shaft, and outside frequency conversion motor drives described pump shaft to rotate by described coupling；

Impeller, is plugged on described pump shaft, the described pump shaft described wheel rotation of drive, thus the fluid that will suck from described entrance Pressurization；

Stator, the liquid pressurizeed by described impeller is collected and is reduced flow velocity through described stator, and discharged by described outlet；

Stator supporter, supports and fixes described stator；

Described frequency conversion motor includes: the motor shaft of motor body and the axially described coupling of connection, also includes being integrally disposed in institute Stating the frequency-variable controller in motor body, described frequency conversion motor drives described pump shaft to rotate by described motor shaft and coupling.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 1, it is characterised in that described frequency conversion motor is described frequency conversion Controller and motor body integral type integrated morphology, and by modern converter technique, thus change motor according to control signal Rotating speed is to control flow and the lift of centrifugal multistage pump multiple centrifugal pump.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 2, it is characterised in that described frequency conversion motor also has wireless Bluetooth module, realizes being operated and control intelligence multistage pump system on the mobile apparatus by application program by wireless blue tooth signal System.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 2, it is characterised in that described frequency conversion motor also has GPRS Module, by sending GPRS signal to centralized-control center, it is achieved wireless remote monitering.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 2, it is characterised in that described frequency conversion motor also have based on The COM1 of industrial bus agreement, to realize networking.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 2, it is characterised in that described frequency conversion motor is equipped with touch Screen device is to realize local operation, easy to operate, and user interface is friendly.

7. according to a kind of intelligence centrifugal multistage pump multiple centrifugal pump described in any one of claim 1 to 6, it is characterised in that described VFC Device is bolted on described motor body and is integrally forming；External power source connects by being arranged on the power supply of described motor body Mouth is connected with described frequency-variable controller；Described motor body also has input/output port for exporting control signal control system In ancillary equipment；By the power supply of described frequency-variable controller frequency modulation by power supply terminal be connected with described motor body for The input of different frequency power supply.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 7, it is characterised in that described impeller by described axle sleeve and Spacer ring axially positions.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 8, it is characterised in that first impeller in described impeller For first stage impeller, described first stage impeller axially positions by being socketed in the axis head nut of described pump shaft end；Described first stage impeller Having multiple secondary impeller below, last impeller is impeller.

A kind of intelligence centrifugal multistage pump multiple centrifugal pump the most according to claim 9, it is characterised in that described stator includes:

First stator, one end of described first stator is plugged on described sliding bearing, the corresponding described chopped-off head of described first stator It it is first-level guide blade during impeller；

Second stator, is secondary stator during the corresponding described secondary impeller of described second stator, is end during corresponding described impeller Level stator.