CN101737335A - High-lift multi-stage centrifugal pump - Google Patents

High-lift multi-stage centrifugal pump Download PDF

Info

Publication number
CN101737335A
CN101737335A CN200810195195A CN200810195195A CN101737335A CN 101737335 A CN101737335 A CN 101737335A CN 200810195195 A CN200810195195 A CN 200810195195A CN 200810195195 A CN200810195195 A CN 200810195195A CN 101737335 A CN101737335 A CN 101737335A
Authority
CN
China
Prior art keywords
bearing
pump
rotating shaft
centrifugal pump
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200810195195A
Other languages
Chinese (zh)
Inventor
李永胜
朱炳祥
朱正荣
付德利
Original Assignee
李永胜
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李永胜 filed Critical 李永胜
Priority to CN200810195195A priority Critical patent/CN101737335A/en
Publication of CN101737335A publication Critical patent/CN101737335A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a pump body, in particular to a high-lift multi-stage centrifugal pump. The high-lift multi-stage centrifugal pump comprises a pump base, a stator part and a rotor part, wherein the stator part comprises a water inlet end cover, a suction segment, a middle segment, a discharge segment and a bearing supporting part; the bearing supporting part comprises a bearing part and a bearing bush; the bearing part comprises a bearing pedestal and a sliding bearing which is connected with the bearing pedestal; the bearing bush is arranged between the sliding bearing and a rotating shaft; the rotor part comprises impellers, the rotating shaft, a shaft sleeve and a balance disk; the bearing part and the bearing bush adopt a horizontal split structure; the tail end of the rotating shaft is provided with a balance disc wear indicating device; and the first-stage impeller has a double-suction structure, while the other stages of impellers have single-suction structures. Due to the high-lift multi-stage centrifugal pump, the high-lift performance of the pump is ensured; the pump can maintain a good working condition for a long time; and the operating performance of the pump is improved.

Description

A kind of high-lift multi-stage centrifugal pump
Technical field
The present invention relates to a kind of pump housing, relate in particular to a kind of high-lift multi-stage centrifugal pump.
Background technique
High-lift multi-stage centrifugal pump is widely used in the requirement of dark mine drainage with its lift height.But wherein there is following defective, influenced its runnability.
1, impeller is the core component of high-lift multi-stage centrifugal pump, present impeller is divided into single suction impeller and double-entry impeller, single suction impeller has the high advantage of lift, but it exists, and flow is little, the static balancing difference reaches defectives such as cavitation phenomenons more easily takes place, and double-entry impeller has big, the anti-good advantage of cavitation performance of flow, but there is the low shortcoming of lift, use single suction impeller or double-entry impeller that centrifugal pump performance is under some influence separately.
2, because its rotating speed of high-lift multi-stage centrifugal pump is than low-lift pump rotating speed height, and progression is more, so during the rotating shaft running it is had higher mechanical property and balance quality, and just seem particularly important this moment as the performance condition of the supporting part of rotating shaft, present pump is supported with rolling bearing and two kinds of structural types of sliding bearing, compare, sliding bearing all is better than rolling bearing on every performance, but sliding bearing is easy to wear, need between itself and rotating shaft, add bearing shell, bearing shell needs to change after long-time running back produces wearing and tearing, but the rolling bearing that now uses often is integral type, at this moment replacing is got up cumbersome, has prolonged service cycle, and the working efficiency of high-lift multi-stage centrifugal pump is greatly reduced.
3, existing high-lift multi-stage centrifugal pump, when pump is in operation, rotation along with impeller, can be on the main shaft of pump produce a power, make whole rotor part reach, and along with the reach of rotor part, Balance disc on the parts will rub mutually with the gimbal of front, this moment, Balance disc two ends pressure reduction was very big, moved after just making whole rotor part, thereby reached a kind of dynamic balancing by the play of rotor.Because multistage pump is a kind of dynamic balancing that the play by rotor part reaches, so the wearing and tearing of Balance disc certainly exist, when if balance disk wear reaches certain value, just need do timely adjustment to Balance disc, otherwise will bring great potential safety hazard to the operation of pump, but, can't make accurately its abrasion condition intuitively and judging because Balance disc is arranged in the pump housing, but by the intuition prediction error, the generation that causes the accident appear easily.
Summary of the invention
The present invention is directed to above-mentioned defective, purpose is to provide a kind of and is satisfying under the high-lift needs of pump, overcomes the high-lift multi-stage centrifugal pump of above-mentioned every defective, thereby guarantees that high-lift centrifugal pump can the long period keep good working order.
Technological scheme of the present invention is: the present invention includes pump seat, stator component and rotor part, stator component comprises intake end cover, suction casing, the stage casing, Spit Section and bearings parts, the bearings parts comprise bearing part and bearing shell, bearing part comprises bearing support and connected sliding bearing, be provided with bearing shell between sliding bearing and the rotating shaft, rotor part comprises impeller, rotating shaft, axle sleeve and Balance disc, opening structure in bearing part and the bearing shell employing level, the rotating shaft end is provided with balance disk wear indicating device, first stage impeller adopts the double suction structure, and all the other grades impeller adopts the single suction structure.
Wear indicating device comprises indication end cap and wear indicator, the indication end cap is fixedly connected on the terminal bearing part of pump, wear indicator is fixedly connected in the rotating shaft and goes out from terminal bearing is overhanging, and the indication end cap is arranged on the wear indicator outside, and both all are provided with along the rotating shaft axial direction.Intake end cover, suction casing, stage casing, Spit Section are strained and fixed by turnbuckle, and each junction plane adopts O shape rubber ring to seal, and its two axial ends adopts soft packing to seal.
The present invention has solved the defective of pointing out in the background technique by technique scheme, 1) first stage impeller is the place, liquid inlet, adopt double-entry impeller can increase suction head, thereby can effectively prevent cavitation phenomenons, in order to guarantee the high-lift property of centrifugal pump, all the other grades impeller all adopts single suction impeller simultaneously, and such blade wheel structure setting can make centrifugal pump can keep high-lift performance, simultaneously can well prevent cavitation phenomenons, effectively raise the usability of centrifugal pump.2) bearing part and bearing shell all adopt horizontal middle open type structure, like this dismounting do not influence during bearing shell pump to neutrality, other component that also needn't remove pump are with regard to replaceable bearing shell, bearing support adopts up and down fixed form respectively, reduce the service cycle and the maintenance difficulty of pump, improved the service behaviour of pump.3) can in time grasp the abrasion condition of pump Balance disc, the operator can in time be pinpointed the problems and can take corresponding measure, make the pump Balance disc can keep normal working state, thus the normal operation of assurance pump.
The present invention is by technique scheme, for the high-lift performance of centrifugal pump provides assurance, makes pump can keep two good working staties for a long time, improved the service behaviour of high-lift multi-stage centrifugal pump.
Description of drawings
Accompanying drawing is a structural representation of the present invention
Among the figure 1 be pump seat, 2 for intake end cover, 3 for suction casing, 4 for the stage casing, 5 for the Spit Section, 6 for bearing part, 7 for bearing shell, 8 for first stage impeller, 9 for impeller, 10 for rotating shaft, 11 for Balance disc, 12 for the indication end cap, 13 for wear indicator, 14 for turnbuckle.
Embodiment
The present invention includes pump seat 1, stator component and rotor part, stator component comprises intake end cover 2, suction casing 3, stage casing 4, Spit Section 5 and bearings parts, the bearings parts comprise bearing part 6 and bearing shell 7, bearing part 6 comprises bearing support and connected sliding bearing, 10 of sliding bearing and rotating shaft are provided with bearing shell 7, rotor part comprises impeller 8, rotating shaft 10, axle sleeve and Balance disc 11, opening structure in bearing part and the bearing shell 7 employing levels, rotating shaft 10 ends are provided with balance disk wear indicating device, first stage impeller 8 adopts the double suction structure, and all the other grades impeller 9 adopts the single suction structure.
Wear indicating device comprises indication end cap 12 and wear indicator 13, indication end cap 12 is fixedly connected on the terminal bearing part of pump, wear indicator 13 is fixedly connected in the rotating shaft 10 and goes out from terminal bearing is overhanging, indication end cap 12 is arranged on wear indicator 13 outsides, and both all are provided with along the rotating shaft axial direction.
Intake end cover 2, suction casing 3, stage casing 4, Spit Section 5 are strained and fixed by turnbuckle 14, and each junction plane adopts O shape rubber ring to seal, and its two axial ends adopts soft packing to seal.
The present invention is in order further to increase pump performance, and parts such as impeller 9, seal ring, stator are selected the high alloy iron material for use, make its wear resistance good, long service life.Impeller of the present invention adopts 12 grades, and according to experiment, pump flow process maximum of the present invention can reach and be 480m3/h, and lift can reach 1153m, and the cavitation performance of pump is good, inhales journey and can reach 7.3m.

Claims (3)

1. high-lift multi-stage centrifugal pump, comprise pump seat, stator component and rotor part, stator component comprises intake end cover, suction casing, the stage casing, Spit Section and bearings parts, the bearings parts comprise bearing part and bearing shell, bearing part comprises bearing support and connected sliding bearing, be provided with bearing shell between sliding bearing and the rotating shaft, rotor part comprises impeller, rotating shaft, axle sleeve and Balance disc, it is characterized in that, opening structure in bearing part and the bearing shell employing level, rotating shaft is smeared end and is provided with balance disk wear indicating device, and first stage impeller adopts the double suction structure, and all the other grades impeller adopts the single suction structure.
2. a kind of high-lift multi-stage centrifugal pump according to claim 1, it is characterized in that, wear indicating device comprises indication end cap and wear indicator, the indication end cap is fixedly connected on the terminal bearing part of pump, wear indicator is fixedly connected in the rotating shaft and goes out from terminal bearing is overhanging, the indication end cap is arranged on the wear indicator outside, and both all are provided with along the rotating shaft axial direction.
3. a kind of high-lift multi-stage centrifugal pump according to claim 1, it is characterized in that, intake end cover, suction casing, stage casing, Spit Section are strained and fixed by turnbuckle, and each junction plane adopts O shape rubber ring to seal, and its two axial ends adopts soft packing to seal.
CN200810195195A 2008-11-07 2008-11-07 High-lift multi-stage centrifugal pump Pending CN101737335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810195195A CN101737335A (en) 2008-11-07 2008-11-07 High-lift multi-stage centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810195195A CN101737335A (en) 2008-11-07 2008-11-07 High-lift multi-stage centrifugal pump

Publications (1)

Publication Number Publication Date
CN101737335A true CN101737335A (en) 2010-06-16

Family

ID=42461241

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810195195A Pending CN101737335A (en) 2008-11-07 2008-11-07 High-lift multi-stage centrifugal pump

Country Status (1)

Country Link
CN (1) CN101737335A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828960A (en) * 2012-09-18 2012-12-19 南方泵业股份有限公司 Double suction multistage horizontal split pump
CN104251215A (en) * 2014-09-24 2014-12-31 沈阳启源工业泵制造有限公司 Asynchronous transmission multistage centrifugal pump
CN104913878A (en) * 2015-06-04 2015-09-16 广东石油化工学院 Rotating equipment dynamic balancing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828960A (en) * 2012-09-18 2012-12-19 南方泵业股份有限公司 Double suction multistage horizontal split pump
CN104251215A (en) * 2014-09-24 2014-12-31 沈阳启源工业泵制造有限公司 Asynchronous transmission multistage centrifugal pump
CN104913878A (en) * 2015-06-04 2015-09-16 广东石油化工学院 Rotating equipment dynamic balancing device

Similar Documents

Publication Publication Date Title
CN204783844U (en) Horizontal multistage centrifugal pump
CN201306289Y (en) High-lift multistage centrifugal pump
CN106968909A (en) Rivers Combined water water pumping power pump
CN103225624A (en) Double-casing symmetric type radial subdivision multiple-stage centrifugal pump
CN203214340U (en) Double-shell symmetric radially-split multistage centrifugal pump
CN101737335A (en) High-lift multi-stage centrifugal pump
CN103790832B (en) A kind of automatic floating lubricating type high-lift multi-stage pump
CN202597113U (en) Charging pump for nuclear power station
CN201763618U (en) Sludge pump
CN200975360Y (en) Vertical type multi-stage pump with intermediate bearing
CN202955024U (en) Long-axis pump with reverse auxiliary impeller
CN201526512U (en) Slag slurry pump blade fluid power balance combined seal
CN207621074U (en) A kind of large flow single-stage cantilever SO2Centrifugal blower
CN203685591U (en) Automatic floating lubrication type high-lift multi-stage pump
CN201281034Y (en) Bearing arrangement of fluid delivery pump
CN107795490A (en) High-lift single-stage double-suction centrifugal pump
CN206246409U (en) The centrifugal multistage pump multiple centrifugal pump of half-opened impeller and the low discharge ultrahigh pump lift using the impeller
CN101649839A (en) Deep-well centrifugal pump with two thrust bearing pairs on each impeller
CN204532939U (en) A kind of axial force balance mechanism of MD type multistage centrifugal pump
CN104196718B (en) Screw immersible pump
CN200975350Y (en) Vertical type shielding pump
CN207212681U (en) The wear-resisting oil-slurry pump of gate vane channel built in the support of both ends
CN202468358U (en) Safe, water-saving and low-failure-rate double-pipe long-shaft submerged pump
CN2752501Y (en) Mechanical sealing horizontal multistage pump capable of preventing mainshaft from fleeing axially
CN211950874U (en) Spiral axial-flow pump

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20100616