CN104154003B - A kind of deep-well mining diving pump that can balance static rotor spindle nose power - Google Patents
A kind of deep-well mining diving pump that can balance static rotor spindle nose power Download PDFInfo
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- CN104154003B CN104154003B CN201410366031.9A CN201410366031A CN104154003B CN 104154003 B CN104154003 B CN 104154003B CN 201410366031 A CN201410366031 A CN 201410366031A CN 104154003 B CN104154003 B CN 104154003B
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- spindle nose
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Abstract
The invention provides a kind of deep-well mining diving pump that can balance static rotor spindle nose power, including the motor top cover being sequentially connected with from top to bottom, motor, motor base, it is characterized in that, a thrust disc is fixed at the axle top of motor, described thrust disc upper end is provided with thrust disc groove, the thrust disc through hole of the radial direction being connected with thrust disc groove it is additionally provided with on described thrust disc, motor top cover through hole radially it is provided with in described motor top cover, described motor is wet type electric motor, and described motor base is provided with axial through hole.The present invention is by being incorporated into rotor top by the water under high pressure of described immersible pump bottom；Produce reverse spindle nose dynamic balance spindle nose power, make the axial force before deep submersible pump rotor startup close to zero；And the liquid introduced is filtered, so that it is guaranteed that deep-well mining diving pump normally starts and reliably operates.
Description
Technical field
The present invention relates to a kind of mining diving pump, be specifically related to a kind of deep well ore that can balance static rotor spindle nose power and use
Immersible pump.
Background technology
Mining diving pump is the visual plant of colliery permeable draining rescue.It is reported, through the most qualified deep of every test
Well mining diving pump, transfers to the situation often occurring rotor to start after in deep water mine.The theoretical analysis finds, deep well ore
With immersible pump before activation, the rotor bottom of deep well submerged pump is that rotor cannot normally start by the spindle nose power that liquid is axial
Reason, this spindle nose power is directly proportional to the depth of immersion of pump shaft head, and in deep-well, spindle nose power is very big, the moment of resistance that spindle nose power is formed
The startup load of remote super motor.
According to immersible pump design theory, the design of rotor need to carry out the axial force balance under dynamic condition.Axial force balance
Method mainly have being used in conjunction of balance pipe, balancing drum, balancing frame and multiple method.These axial force balancing methods are effective
Precondition be that liquid before and after impeller produces pressure reduction during impeller operation, produce reverse axial force by pressure reduction
The balance existing axial force of rotor.And deep-well mining diving pump is before activation, impeller does not operates, and the liquid before and after impeller does not almost have
Having pressure reduction, it is impossible to balancing axial thrust, and mining diving pump slips into different depth, the change of spindle nose power is huge, therefore conventional axial force
Balance method can not balance the spindle nose power of static rotor.
Summary of the invention
In order to overcome existing pump rotor dynamic axial dynamic balance method cannot realize deep-well mining diving pump static rotor
The problem of axial force balance, the present invention proposes a kind of deep-well mining diving pump that can balance static rotor spindle nose power.
The present invention realizes above-mentioned technical purpose by techniques below means.
A kind of deep-well mining diving pump that can balance static rotor spindle nose power, including the motor being sequentially connected with from top to bottom
Top cover, motor, motor base, it is characterised in that fix a thrust disc at the axle top of motor, described thrust disc upper end is provided with and pushes away
Power dish groove, described thrust disc is additionally provided with the thrust disc through hole of the radial direction being connected with thrust disc groove, described motor top
Covering and be provided with motor top cover through hole radially, described motor is wet type electric motor, and described motor base is provided with axial through hole.
Further, described motor top cover through hole is provided with screen cloth.
Further, described thrust disc axial force balance diameter d2According to formulaDetermine,
Wherein, ρ is mine water density, and h is the diving depth of deep-well mining diving pump, d1For spindle nose power stress diameter, ∑ SOnFor upwards
The area sum of the shaft shoulder, ∑ SUnderFor the area sum of the downward shaft shoulder, GRotorFor rotor weight.
Further, described thrust disc is fixed by screws in the top of axle.
Further, the through hole on described thrust disc through hole, motor top cover through hole, motor base is multiple.
Further, the through hole on described motor base is provided with filter screen.
Deep-well mining diving pump of the present invention, by being incorporated into rotor top by the water under high pressure of described immersible pump bottom
Portion；Produce reverse spindle nose dynamic balance spindle nose power, make the axial force before deep submersible pump rotor startup close to zero；And to introducing
Liquid filters, so that it is guaranteed that deep-well mining diving pump normally starts and reliably operates.
Accompanying drawing explanation
Fig. 1 is the structure chart of deep-well mining diving pump of the present invention.
Fig. 2 is Fig. 1 axis top and the partial enlarged drawing of the parts that are connected.
In figure:
1-pump frame, 2-inducer, 3-impeller, 4-stator, 5-motor base, 6-mechanical seal, 7-pump barrel body, 8-axle,
9-motor cylinder, 10-motor stator, 11-thrust disc, 12-screen cloth, 13-motor top cover, 14-motor top cover through hole, 15-thrust
Dish through hole, 16-thrust disc groove, d1-spindle nose power stress diameter, d2-thrust disc axial force balance diameter.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is also
It is not limited to this.
As it is shown in figure 1, deep-well mining diving pump of the present invention, including the motor top cover being sequentially connected with from top to bottom
13, motor, motor base 5, fixes a thrust disc 11 at axle 8 top of motor, and thrust disc 11 is fixed by screws in the top of axle 8
End.Described thrust disc 11 upper end is provided with thrust disc groove 16, described thrust disc 11 is additionally provided with and is connected with thrust disc groove 16
The thrust disc through hole 15 of logical radial direction, described motor top cover 13 is provided with motor top cover through hole 14 radially, described motor bottom
Seat 5 is provided with axial through hole.It is preferred that the through hole on described thrust disc through hole 15, motor top cover through hole 14, motor base 5
It is multiple.
When being placed in deep water mine by described immersible pump, liquid impure in mine sequentially enters from pump frame 1
Inducer 2 and impeller 3 and stator 4, the then annular between through hole inflow pump cylinder 7 and the motor cylinder 9 from motor base 5
Passage, sequentially passes through motor top cover through hole 14, thrust disc through hole 15 enters thrust disc groove 16, and the bottom surface of thrust disc groove 16 is subject to
To the power that liquid is downward, to balance spindle nose power, after electrical power, the axial force before pump rotor starts is the least such that it is able to normal
Get into smooth.Motor base 5 arranges mechanical seal 6 with the place of cooperation of axle 8；Motor stator 10 is positioned at the sky within motor cylinder 9
In, the internal clean mine water being full of after filtering of motor cylinder 9.
In order to make motor trend towards zero in the stress of vertical direction, downward power that i.e. thrust disc groove 16 is subject to, the shaft shoulder
The axial liquid muscle power being subject to and the size of rotor gravity sum should be equal to the axial force suffered by motor bottom, described thrust disc axles
To dynamic balance diameter d2According to formulaDetermining, wherein, ρ is mine water density, h
For immersible pump diving depth, d1For spindle nose power stress diameter, ∑ SOnFor the area sum of the upwards shaft shoulder, ∑ SUnderFor the downward shaft shoulder
Area sum, GRotorFor rotor weight.
In the present embodiment, the through hole on described motor base 5 is provided with filter screen, sets at described motor top cover through hole 14
It is equipped with screen cloth 12, makes containing impure highly pressurised liquid after screen cloth 12 filters, pass through motor top cover through hole 14, thrust disc
Through hole 15, enters thrust disc groove 16, reduces the pollution of impurity.
Described embodiment be the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment, not
In the case of deviating from the flesh and blood of the present invention, any conspicuously improved, the replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (6)
1. can balance a deep-well mining diving pump for static rotor spindle nose power, including the motor top being sequentially connected with from top to bottom
Lid (13), motor, motor base (5), it is characterised in that fix a thrust disc (11), described thrust at axle (8) top of motor
Dish (11) upper end is provided with thrust disc groove (16), described thrust disc (11) is additionally provided with and is connected with thrust disc groove (16)
Thrust disc through hole (15) radially, described motor top cover (13) is provided with motor top cover through hole (14) radially, described motor
For wet type electric motor, described motor base (5) is provided with axial through hole.
Deep-well mining diving pump the most according to claim 1, it is characterised in that described motor top cover through hole (14) place is arranged
There is screen cloth (12).
Deep-well mining diving pump the most according to claim 1, it is characterised in that described thrust disc axial force balance diameter d2
According to formulaDetermining, wherein, ρ is mine water density, and h is that immersible pump diving is deep
Degree, d1For spindle nose power stress diameter, ∑ SOnFor the area sum of the upwards shaft shoulder, ∑ SUnderFor the area sum of the downward shaft shoulder, GRotorFor
Rotor weight.
Deep-well mining diving pump the most according to claim 1, it is characterised in that described thrust disc (11) is fixed by screw
Top in axle (8).
Deep-well mining diving pump the most according to claim 1, it is characterised in that described thrust disc through hole (15), motor top
Through hole on lid through hole (14), motor base (5) is multiple.
Deep-well mining diving pump the most according to claim 1 and 2, it is characterised in that the through hole on described motor base (5)
Place is provided with filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366031.9A CN104154003B (en) | 2014-07-29 | 2014-07-29 | A kind of deep-well mining diving pump that can balance static rotor spindle nose power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366031.9A CN104154003B (en) | 2014-07-29 | 2014-07-29 | A kind of deep-well mining diving pump that can balance static rotor spindle nose power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104154003A CN104154003A (en) | 2014-11-19 |
| CN104154003B true CN104154003B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410366031.9A Active CN104154003B (en) | 2014-07-29 | 2014-07-29 | A kind of deep-well mining diving pump that can balance static rotor spindle nose power |
Country Status (1)
| Country | Link |
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| CN (1) | CN104154003B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481924B (en) * | 2014-11-28 | 2017-06-06 | 江苏大学 | A kind of combined high-speed is speedily carried out rescue work pump front-end architecture |
| CN109763983B (en) * | 2019-01-04 | 2021-06-08 | 武汉船用机械有限责任公司 | Immersed pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1583664A1 (en) * | 1988-04-11 | 1990-08-07 | Предприятие П/Я М-5356 | Centrifugal pump |
| RU2183291C1 (en) * | 2001-04-16 | 2002-06-10 | ОАО "Энергомашкорпорация" | Centrifugal pump |
| CN201723460U (en) * | 2010-06-08 | 2011-01-26 | 江苏大学 | Variable frequency high speed wet-type submersible pump |
| CN202560572U (en) * | 2012-05-24 | 2012-11-28 | 烟台盛泉泵业有限公司 | Axial force self-balancing magnetic force driving pipeline pump |
| CN103629118B (en) * | 2013-12-10 | 2016-03-02 | 江苏大学 | A kind of riser permanent magnet shield pump |
| CN204140449U (en) * | 2014-07-29 | 2015-02-04 | 江苏大学 | A kind of deep-well mining diving pump that can balance static rotor spindle nose power |
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2014
- 2014-07-29 CN CN201410366031.9A patent/CN104154003B/en active Active
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| Publication number | Publication date |
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| CN104154003A (en) | 2014-11-19 |
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