CN207437389U - A kind of efficient submersible axial flow pump of New-type electric machine underneath type - Google Patents
A kind of efficient submersible axial flow pump of New-type electric machine underneath type Download PDFInfo
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- CN207437389U CN207437389U CN201721392028.XU CN201721392028U CN207437389U CN 207437389 U CN207437389 U CN 207437389U CN 201721392028 U CN201721392028 U CN 201721392028U CN 207437389 U CN207437389 U CN 207437389U
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- water inlet
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- inlet flow
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Abstract
The utility model discloses a kind of efficient submersible axial flow pumps of New-type electric machine underneath type, belong to hydrodynamic force engineering design technology field, including water inlet flow channel, wheel member, diffuser and submersible motor component, change the structure type pumped on traditional submersible axial flow pump under machine, for the products characteristics and actual operating mode of submersible axial flow pump, it is proposed a kind of structural shape suitable for submersible axial flow pump high efficient and reliable, structure is for motor in lower water pump upper.Water inlet flow channel is optimized using the design method of bell runner, wheel member is designed the guide vane structure of no angle of flare, formed a set of efficient hydraulic model using high-efficiency abrasion-proof and the anti-sweepback impeller wound；Rubber shaft bearing is added in submersible motor, effectively reduces vibration and noise, the upper bearing (metal) of Wen Sheng higher is using the preferable oil lubrication of cooling-down effect, along with three cable seals, considerably increases the reliability of submersible motor.
Description
Technical field：
The utility model is related to the design field of pump, a kind of particularly efficient submersible axial flow pump of New-type electric machine underneath type.
Background technology：
Submersible axial flow pump is widely applied universal machine, as large flowrate low head pump, is had in market of sewage treatment
Larger demand.At present, domestic submerged axial-flow pump configuration combines as a whole for motor with water pump, and motor is in the upper of pump
Side, medium flow through motor outer wall.Since motor outer wall dimension is determined by power and rotating speed, and it is to ensure that diffuser efficiently returns
Energy is received, reduces exit velocity, the outlet size of diffuser is also limited, and also just defines guide vane angle of flare.Due to motor
Lower flange size it is larger, hub size is smaller, and guide vane angle of flare is very big, causes very big divergence loss, reduces water pump
Efficiency causes the significant wastage of electric power energy, adds the operating cost in pump later stage, not energy saving also uneconomical.Therefore, explore
Suitable for the energy-efficient structure type of submersible axial flow pump, guide vane energy recovery efficiency is improved, it is extremely urgent.
Utility model content：
The purpose of this utility model is to solve the deficiencies in the prior art, and it is efficient to provide a kind of New-type electric machine underneath type
Submersible axial flow pump.
The technical solution adopted in the utility model is：
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, including motor housing, diffuser and water inlet flow channel body, motor
The upper and lower end of shell is installed respectively by upper and lower end cap seal, it is characterised in that：
The motor housing is tightly connected by upper end cover and water inlet flow channel body, and diffuser is tightly connected with water inlet flow channel body
It is structure as a whole, the upper and lower end of wherein motor housing, which covers, is rotatablely equipped with motor shaft, is set on motor shaft and in motor housing
The associated component and extraction wire of motor；
Motor shaft is through upper end cover and connects impeller axle, and impeller assembly, impeller assembly are installed on impeller axle outer wall
Including the blade in impeller axle and impeller, impeller using the blade inlet edge in swept-back structure and impeller by etc. angles spiral
Line gauge rule variation；
Interior outlet passage, water inlet flow channel and the outlet passage of being equipped with of water inlet flow channel, diffuser is equipped in water inlet flow channel body as one
A whole flow passage structure, the wherein water inlet of water inlet flow channel are campanula halleri Halleri, and guide vane is equipped in diffuser and water inlet flow channel body
Support, in guide vane support, the blade installed on the impeller in impeller assembly is integrally located at flow passage structure for impeller axle rotational installation
Interior, blade is uniformly distributed on impeller；
Motor shaft is covered in the upper and lower end of motor housing to be rotatablely installed by bearing, sealed, and impeller axle passes through rubber shaft bearing
It is rotatablely installed in diffuser, the in vivo guide vane support of water inlet flow channel.
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, it is characterised in that：
The conducting wire that the electric machine assembly is drawn uses the form that side goes out, and conducting wire passes through motor housing and fixation, sealing.
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, it is characterised in that：
It is curved after the inlet side of the water inlet flow channel body, fluid can be contacted simultaneously, and the flow passage structure outlet of diffuser is adopted
With water guide bevel-type structure, guiding current outflow.
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, it is characterised in that：
The flow passage structure outlet edge of the diffuser is tied using flange arrangement, setting connecting hole or other connections
Structure, for connecting line and other assemblies.
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, it is characterised in that：
The motor shaft and impeller axle setting are structure as a whole, and are adopted between the upper end cover of motor housing and water inlet flow channel body
By the use of upper and lower mechanical seal as double protection, and cavity conduct is formed between the upper end cover of motor housing and water inlet flow channel body
Grease chamber simultaneously injects lubricating oil, and the upper bearing (metal) of motor shaft is made to use oil lubrication.
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, it is characterised in that：
The upper end cover of the motor housing is tightly connected with water inlet flow channel body and motor housing, and oil filler point is set to connect
It passes in grease chamber.
Compared with prior art, the beneficial effects of the utility model are：
Traditional submerged axial-flow pump configuration is changed to motor in lower pump head in upper structure by the utility model, is set by this method
The submersible axial flow pump of meter, have it is energy-efficient, rotor bow is small, bearing good heat dissipation, high reliability, critical component it is excellent
Change the service life for adding submersible axial flow pump, and the addition of rubber shaft bearing greatly reduces vibration and the noise of pump, can make pump
Long-term safety reliability service.
Description of the drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the utility model impeller assembly；
Arrow is oriented to water (flow) direction in figure.
Specific embodiment：
Below in conjunction with the accompanying drawings, the utility model is described in further detail by embodiment：
A kind of efficient submersible axial flow pump of New-type electric machine underneath type, including motor housing 1, diffuser 2 and water inlet flow channel body 3,
The upper and lower end of motor housing 1 respectively by upper and lower end cap 1-1,1-2 seal install, motor housing 1 by upper end cover 1-1 with into
Water flow passage body 3 is tightly connected, and diffuser 2 is structure as a whole with the sealed connection of water inlet flow channel body 3, and wherein motor housing 1 is upper and lower
It is rotatablely equipped with motor shaft 4 on end cap 1-1,1-2, the associated component 5 of motor is set on motor shaft 4 and in motor housing 1 and draws
Go out conducting wire 6；
Motor shaft 4 is through upper end cover 1-1 and connects impeller axle 7, and impeller assembly, leaf are installed on 7 outer wall of impeller axle
Wheel assembly includes the blade 8 in impeller axle 7 and impeller, impeller using 8 leading edge of blade on swept-back structure and impeller by etc.
Variable angle spiral rule changes, and can make to use the lift method for becoming circular rector, becoming axis plane velocity, the leaf thus designed between each stream interface
Wheel has the features such as energy-efficient, working range is broad, anti-cavitation performance is excellent, wear-resisting antiwind, can improve axial-flow pump
Work efficiency and reliability；
Water inlet flow channel 9 is equipped in water inlet flow channel body 3, outlet passage 2-2 is equipped in diffuser 2, water inlet flow channel 9 and goes out current
Road 2-2 is the flow passage structure of an entirety, and the wherein water inlet 9-1 of water inlet flow channel 9 is campanula halleri Halleri, diffuser 2 and feed water flow
Guide vane is equipped in road body 3 and supports 10, impeller axle 7 is rotatablely installed in guide vane support 10, is installed on the impeller in impeller assembly
Blade 8 is integrally located in flow passage structure, blade 8 is uniformly distributed on impeller, and water inlet flow channel 9 is to guide the water in pond into impeller
, the design uses bell-shaped suction box structure, eliminates water guide wimble structure, overcomes impurity and be deposited in water guide cone head part, takes turns
Profile coordinates motor and boss shape, makes flowing much smoother, optimizes the fluidised form before fluid contact blade, also just influences leaf indirectly
The efficiency of wheel；
Motor shaft 4 is rotatablely installed by bearing on upper and lower end cap 1-1,1-2 of motor housing 1, sealed, and impeller axle 7 is logical
It crosses rubber shaft bearing 12 to be rotatablely installed in the guide vane support 10 in diffuser 2, water inlet flow channel body 3, rubber is installed additional at guide vane support 10
Glue bearing 12 makes impeller support become both ends support from cantilever support, reduces the amount of deflection of impeller axle 7, enables rotor safety can
The operation leaned on.It is convenient that rubber shaft bearing 12 is installed and overhauled, and the deformation of rubber can mitigate the stress of axis, and internal damping is big, can be effectively
Vibration, noise and impact that operation generates are absorbed or eliminate, bearing uses water lubrication, and lubrication water can not only be taken away by friction and produce
Raw heat, moreover it is possible to impurity be taken away by bearing ditch, the durability of bearing can be extended, ensure pump safe and reliable operation.
The form that the conducting wire 6 that electric machine assembly 5 is drawn is gone out using side, conducting wire 6 is through motor housing 1 and fixes, sealing, sealing
Structure improves the reliability of sealing using multi-layer sealed, so as to effectively solve leader cable into water problems.
The effect of diffuser 2 is to eliminate fluid circular rector, and the speed of fluid can be converted to pressure energy, due to tradition diving axis
Stream pump is using structure of the motor in upper, pump head under, and motor lower flange size is larger and hub size is smaller, diffuser diffusion
Angle is very big, causes very big divergence loss, reduces the efficiency of water pump, the design（Refer to the attached drawing 1）Using inner outline without expansion
Angle is dissipated, and to ensure 2 high efficiente callback energy of diffuser, reduces exit velocity, the smaller diffusion of outer contour band of diffuser 2
Angle, this design method are greatly lowered guide blade loss, improve the efficiency of pump, curved after the inlet side of water inlet flow channel body 3, can
Fluid is contacted simultaneously, and using water guide bevel-type structure, guiding current outflow avoids producing between current for the flow passage structure outlet of diffuser 2
The raw serious efficiency for interfering with each other, further improving pump.
The flow passage structure outlet edge of diffuser 2 is tied using flange arrangement, setting connecting hole 2-1 or other connections
Structure, for connecting line and other assemblies, it can be achieved that horizontal installation, convenient and efficient without using mating pit shaft.
Motor shaft 4 and impeller axle 7 setting is structure as a whole, the upper end cover 1-1 and water inlet flow channel body 3 of motor housing 1 it
Between using upper and lower mechanical seal 13,14 as double protection, and the upper end cover 1-1 of motor housing 1 and water inlet flow channel body 3 it
Between form cavity 15 as grease chamber and lubricating oil is injected, make the upper bearing (metal) 11 of motor shaft 4 using oil lubrication, using reliable twice
Mechanical seal, and machine envelope is placed in upper bearing (metal) 11 in same grease chamber.Since submersible axial flow pump is close to the upper bearing (metal) 11 of pump head side
Wen Sheng higher, therefore be lubricated using the mode of oil lubrication, cooling, cooling effect well can be reached, more preferably reduce bearing
Wen Sheng and abrasion improve service life and the security of pump.
The upper end cover 1-1 of motor housing 1 is tightly connected with water inlet flow channel body 3 and motor housing 1, and sets oil filler point
It is connected in grease chamber.
Above-described embodiment is only the preferable embodiment of the utility model, and in addition, the utility model can also have
Other realization methods.It should be noted that on the premise of conceiving without departing from the utility model, it is any conspicuously improved
It should all be fallen into modification within the scope of protection of the utility model.
Claims (6)
1. a kind of efficient submersible axial flow pump of New-type electric machine underneath type, including motor housing, diffuser and water inlet flow channel body, outside motor
The upper and lower end of shell is installed respectively by upper and lower end cap seal, it is characterised in that：
The motor housing is tightly connected by upper end cover and water inlet flow channel body, and diffuser is tightly connected with water inlet flow channel body as one
The upper and lower end of body structure, wherein motor housing, which covers, is rotatablely equipped with motor shaft, and motor is set on motor shaft and in motor housing
Associated component and extraction wire；
Motor shaft is through upper end cover and connects impeller axle, impeller assembly is installed on impeller axle outer wall, impeller assembly includes
Blade in impeller axle and impeller, impeller using the blade inlet edge on swept-back structure and impeller by etc. variable angle spirals rule
Rule variation；
It is interior whole for one equipped with outlet passage, water inlet flow channel and outlet passage that water inlet flow channel, diffuser are equipped in water inlet flow channel body
The water inlet of the flow passage structure of body, wherein water inlet flow channel is campanula halleri Halleri, and being equipped with guide vane in diffuser and water inlet flow channel body supports,
Impeller axle is rotatablely installed in guide vane supports, and the blade installed on the impeller in impeller assembly is integrally located in flow passage structure, leaf
Piece is uniformly distributed on impeller；
Motor shaft is covered in the upper and lower end of motor housing to be rotatablely installed by bearing, sealed, and impeller axle is being led by rubber shaft bearing
It is rotatablely installed in the in vivo guide vane support of Ye Ti, water inlet flow channel.
2. a kind of efficient submersible axial flow pump of New-type electric machine underneath type according to claim 1, it is characterised in that：
The conducting wire that the electric machine assembly is drawn uses the form that side goes out, and conducting wire passes through motor housing and fixation, sealing.
3. a kind of efficient submersible axial flow pump of New-type electric machine underneath type according to claim 1, it is characterised in that：
It is curved after the inlet side of the water inlet flow channel body, fluid can be contacted simultaneously, and the flow passage structure outlet of diffuser, which uses, to be led
Water cone formula structure, guiding current outflow.
4. a kind of efficient submersible axial flow pump of New-type electric machine underneath type according to claim 1, it is characterised in that：
Using flange arrangement, setting connecting hole or other connection structures for the flow passage structure outlet edge of the diffuser, is used
In connecting line and other assemblies.
5. a kind of efficient submersible axial flow pump of New-type electric machine underneath type according to claim 1, it is characterised in that：
The motor shaft and impeller axle setting are structure as a whole, and are used between the upper end cover of motor housing and water inlet flow channel body
Upper and lower mechanical seal forms cavity as double protection, and between the upper end cover of motor housing and water inlet flow channel body as oil
Lubricating oil is simultaneously injected in room, and the upper bearing (metal) of motor shaft is made to use oil lubrication.
6. a kind of efficient submersible axial flow pump of New-type electric machine underneath type according to claim 1 or 5, it is characterised in that：
The upper end cover of the motor housing is tightly connected with water inlet flow channel body and motor housing, and oil filler point is set to be connected to
In grease chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392028.XU CN207437389U (en) | 2017-10-26 | 2017-10-26 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392028.XU CN207437389U (en) | 2017-10-26 | 2017-10-26 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437389U true CN207437389U (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721392028.XU Active CN207437389U (en) | 2017-10-26 | 2017-10-26 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781174A (en) * | 2017-10-26 | 2018-03-09 | 合肥凯泉电机电泵有限公司 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
-
2017
- 2017-10-26 CN CN201721392028.XU patent/CN207437389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781174A (en) * | 2017-10-26 | 2018-03-09 | 合肥凯泉电机电泵有限公司 | A kind of efficient submersible axial flow pump of New-type electric machine underneath type |
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