CN101676567A - Symmetrical balance centrifugal double horizontal pump - Google Patents
Symmetrical balance centrifugal double horizontal pump Download PDFInfo
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- CN101676567A CN101676567A CN200810165731A CN200810165731A CN101676567A CN 101676567 A CN101676567 A CN 101676567A CN 200810165731 A CN200810165731 A CN 200810165731A CN 200810165731 A CN200810165731 A CN 200810165731A CN 101676567 A CN101676567 A CN 101676567A
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- Prior art keywords
- pump
- centrifugal
- sleeping
- coupling
- bearing
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- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 208000028659 discharge Diseases 0.000 abstract 2
- 239000000411 inducer Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a symmetrical balance centrifugal double horizontal pump. The horizontal pump comprises two centrifugal horizontal pumps with same specification and structure and reverse rotation directions of impellers and a coupling, wherein each centrifugal horizontal pump comprises a pump shaft, a fore bearing, a bearing bracket, a suction stage, a mid-stage, a inducer, a impeller, a discharge-stage guide vane, a discharge-stage and a back bearing. The centrifugal horizontal pumps with same specification and structure and reverse rotation directions of impellers are connected arranged symmetrically by using the coupling. The double horizontal pump has reasonable structure, reliable performance, long service life, high efficiency and energy-saving and can balance the axial forcewell.
Description
Technical field:
But the present invention relates to a kind of symmetrical balance centrifugal double horizontal pump of automatically balancing axial force, belong to the water supply and sewage equipment technical field.
Background technique:
Water pump is the machine that the mechanical energy of prime mover is converted to potential energy, pressure energy and the kinetic energy (high velocity liquid stream) of liquid.Prime mover is by pump shaft impeller rotation, and acting increases its energy to liquid, thereby makes the liquid that needs quantity, is transported to the eminence of requirement or requires the place of pressure through the flow passage components of pump by the priming reservoir.The kind of water pump is a lot, field such as be widely used in mine, engineering, high-floor feedwater and provide rescue and relief for disasters and emergencies.In all kinds of pumps, the horizontal multi-stage centrifugal pump use amount is big, scope is wide, and it mainly is made up of pump shaft, bearing bracket stand, inlet segment, impeller, guide vane wheel, stage casing, water exit end, Balance disc, bearing etc.Pump is on-stream, is acting on axial force on the rotor, and direction points to the suction eye direction.This power will spur rotor axial and move, if do not manage to eliminate or balance, it is moving that this axial force will spur the rotor axial string, contacts with retaining element, and the damage that causes pump component is so that can't proper functioning.
Existing multistage centrifugal crouches pump mainly by the axial clearance of adjustment dish interior edge face, comes balanced action in epitrochanterian axial force.But what deserves to be explained is that Balance disc does not leak by leaking the pressure reduction work that produces, and does not just have equilibrant yet.The leakage rate of general water pump Balance disc is about 2%～8% of rated flow, on average is about 5%, and so big leakage rate has caused the reduction of pump efficiency and the waste of energy.In addition, in real work, normal appearance enters Balance disc or stops up water return pipeline owing to the bigger solid particle of particle diameter in the liquid of carrying, thereby causes balanced controls to damage and inefficacy, has influenced the working life of water pump.
Summary of the invention:
The purpose of this invention is to provide a kind of rational in infrastructure, reliable performance, long service life, energy-efficient and symmetrical balance centrifugal double horizontal pump that can fine balancing axial thrust.
To achieve these goals, the present invention includes: two pumps centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite, coupling, centrifugal pump for sleeping in is made of pump shaft, fore bearing, bearing bracket stand, inlet segment, stage casing, guide vane wheel, impeller, water exit end stator, water exit end, rear bearing, utilize coupling, with the symmetric arrangement connection vertically of two pumps centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite.
The pump centrifugal for sleeping in that described two specification frameworks are identical, the impeller rotation direction is opposite, symmetric arrangement connects to take monomotor to drive vertically, utilizes coupling centrifugal pump for sleeping in of symmetry connection respectively on the main shaft at motor two ends.
Like this, because two opposite equal and opposite in directions of axial force direction that the pump centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite produces, the two can be cancelled each other, axial motion just can not take place in rotor, just can cancel multistage centrifugal the crouch Balance disc of pump and attached return pipe parts, tail-hood, packing_seal assembly etc., water pump water outlet section axial region is used instead and can be born the mechanical seal preferably of higher hydraulic pressure, sealability, the bearings that can bear certain axial force is adopted at the pump shaft two ends, and this mode well balancing axial thrust reduces leakage rate.In addition, owing to cancelled Balance disc and attached return pipe parts, tail-hood, packing_seal assembly etc., thereby reduced the volume of separate unit water pump, and fundamentally avoided causing the situation of pump operation inefficacy, improved the working life and the overall efficiency of pump owing to the damage of balanced controls.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is centrifugal pump structure schematic representation for sleeping in.
Fig. 2 is structural representation of the present invention for monomotor drives.
Fig. 3 is a structural representation of the present invention.
Embodiment:
By Fig. 1 and Fig. 3 as can be known, the present invention includes: two pumps centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite, coupling.Centrifugal pump for sleeping in is made of pump shaft 1, fore bearing 2, bearing bracket stand 3, inlet segment 4, stage casing 5, guide vane wheel 6, impeller 7, water exit end stator 8, water exit end 10, rear bearing 11 etc., main shaft 1 is by bearing bracket stand 3 and bearings and penetrate in pump housing inside, impeller 7 is fixedly set on the inner pump shaft, and pump shaft is provided with mechanical seal 9 in the position of passing the pump case afterbody.Centrifugal pump bilateral symmetry for sleeping in fixedly installs and the same axle center of pump shaft, utilizes coupling 14 with the pump shaft termination fixed connection in the middle part of the centrifugal pump for sleeping in together, and the pump shaft termination on centrifugal pump for sleeping in both sides is respectively applied for and connects the motor that specification mechanism is identical.Motor is controlled by same switch, guarantees that two motors start simultaneously and stop.This kind mode of execution is particularly suitable for renovating of old pump house, is about to original water pump and is replaced by and these identical new devices of technical parameter such as its lift, flow, also its original motor is inserted these device two ends as prime mover and continues to use.
Embodiment 2
Fig. 1 and Fig. 2 have provided the structural representation that the present invention takes monomotor to drive.By Fig. 1 and Fig. 2 as can be known, the present invention includes: two pumps centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite, coupling, motor.Centrifugal pump for sleeping in is made of pump shaft 1, fore bearing 2, bearing bracket stand 3, inlet segment 4, stage casing 5, guide vane wheel 6, impeller 7, water exit end stator 8, water exit end 10, rear bearing 11 etc., main shaft is by bearing bracket stand and bearings and penetrate in pump housing inside, impeller 7 is fixedly set on the inner pump shaft, and pump shaft is provided with mechanical seal 9 in the position of passing the pump case afterbody.Motor is a left and right sides bearing axis structure, and two ends can connect pump load.On the main shaft 13 at motor 12 two ends, utilize coupling centrifugal pump for sleeping in of symmetry connection respectively.Utilize coupling 14 to make pump shaft 1 and motor main shaft concentric during connection.This kind mode of execution is fit to installing and using of newly-built pump house very much, because two water pumps with operating mode are by the separate unit motoring, saved a large amount of places with respect to original single pump unit layout, and performances such as its lift that will reach, flow are identical with former layout, thereby greatly reduce the building area or the chamber driving amount of pump house.
Claims (2)
1, symmetrical balance centrifugal double horizontal pump, comprise: two pumps centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite, coupling, it is characterized in that centrifugal pump for sleeping in is made of pump shaft, fore bearing, bearing bracket stand, inlet segment, stage casing, guide vane wheel, impeller, water exit end stator, water exit end, rear bearing, utilize coupling, with the symmetric arrangement connection vertically of two pumps centrifugal for sleeping in that specification framework is identical, the impeller rotation direction is opposite.
2, symmetrical balance centrifugal double horizontal pump according to claim 1, it is characterized in that the pump centrifugal for sleeping in that described two specification frameworks are identical, the impeller rotation direction is opposite, symmetric arrangement connects to take monomotor to drive vertically, utilizes coupling centrifugal pump for sleeping in of symmetry connection respectively on the main shaft at motor two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810165731A CN101676567A (en) | 2008-09-16 | 2008-09-16 | Symmetrical balance centrifugal double horizontal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810165731A CN101676567A (en) | 2008-09-16 | 2008-09-16 | Symmetrical balance centrifugal double horizontal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101676567A true CN101676567A (en) | 2010-03-24 |
Family
ID=42029243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810165731A Pending CN101676567A (en) | 2008-09-16 | 2008-09-16 | Symmetrical balance centrifugal double horizontal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101676567A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220986A (en) * | 2011-06-06 | 2011-10-19 | 李维熙 | Anti-disaster mine horizontal submersible pump capable of running amphibiously |
| CN103541906A (en) * | 2013-10-29 | 2014-01-29 | 珠海市威必威数码科技有限责任公司 | Dual-head pump |
| CN108194382A (en) * | 2016-12-08 | 2018-06-22 | 上海齐耀动力技术有限公司 | Coaxial double end centrifugal pump |
| CN110345081A (en) * | 2019-06-25 | 2019-10-18 | 苏州佳瓦智能科技有限公司 | A kind of double end centrifugal pump |
| CN117006058A (en) * | 2022-04-29 | 2023-11-07 | 中国石油化工股份有限公司 | A structure of a double-shaft extension motor driving two centrifugal pump units and its alignment method |
-
2008
- 2008-09-16 CN CN200810165731A patent/CN101676567A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220986A (en) * | 2011-06-06 | 2011-10-19 | 李维熙 | Anti-disaster mine horizontal submersible pump capable of running amphibiously |
| CN103541906A (en) * | 2013-10-29 | 2014-01-29 | 珠海市威必威数码科技有限责任公司 | Dual-head pump |
| CN108194382A (en) * | 2016-12-08 | 2018-06-22 | 上海齐耀动力技术有限公司 | Coaxial double end centrifugal pump |
| CN108194382B (en) * | 2016-12-08 | 2021-01-08 | 上海齐耀动力技术有限公司 | Coaxial double-head centrifugal pump |
| CN110345081A (en) * | 2019-06-25 | 2019-10-18 | 苏州佳瓦智能科技有限公司 | A kind of double end centrifugal pump |
| CN117006058A (en) * | 2022-04-29 | 2023-11-07 | 中国石油化工股份有限公司 | A structure of a double-shaft extension motor driving two centrifugal pump units and its alignment method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100324 |