CN2434451Y - Ease-to-repair vertical multi-stage centrifugal pump - Google Patents
Ease-to-repair vertical multi-stage centrifugal pump Download PDFInfo
- Publication number
- CN2434451Y CN2434451Y CN 00218453 CN00218453U CN2434451Y CN 2434451 Y CN2434451 Y CN 2434451Y CN 00218453 CN00218453 CN 00218453 CN 00218453 U CN00218453 U CN 00218453U CN 2434451 Y CN2434451 Y CN 2434451Y
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- pump shaft
- mechanical seal
- pump
- shaft
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Abstract
The utility model relates to a vertical multi-stage centrifugal pump capable of convenient repair, which comprises a motor, a bracket, a suction section, a discharge section, a middle section, a pump shaft, an impeller, a launch bearing part, a mechanical seal, and a mechanical sealing press cover. The bracket is provided with a window. The end parts of a shaft of the motor and the pump shaft are provided with an opposite clamping shaft coupling which makes the shaft of the motor and the pump shaft clamped fixedly. A push and pull regulator which makes the shaft of the motor and the pump shaft connected and fixed by an axial direction is arranged in the middle of the section spatial distance. The discharge section is connected with the mechanical sealing press cover and is matched with a shaft sleeve on the pump shaft and the mechanical seal. The discharge section is provided with small water inlet holes and drain holes. The utility model makes the mechanical seal be without water leakage during work and has better protective action for the mechanical seal. The motor can not be hung and removed when the mechanical seal and other relevant parts are replaced, and the utility model has convenient maintenance.
Description
The utility model relates to centrifugal pump, particularly a kind of vertical multi-stage centrifugal pump of being convenient to keep in repair.
Existing vertical multi-stage centrifugal pump generally uses packing seal, though change conveniently, but leaks when work and does not stop, and often will adjust.This vertical multi-stage centrifugal pump also has employing mechanical seal, though can keep water-tight, in case lost efficacy, changes just very inconvenient.Need hang motor during replacing, also will remove some component such as coupling, bearing of coaxial assembling sometimes, dismounting is difficulty comparatively.If when the following submerged bearing of pump is changed, then more bother, whole pump must be taken apart sometimes, perhaps remove pipeline, pump is inverted and could be changed.When especially keeping in repair,, therefore waste time and energy more because motor, water pump are very heavy for bigger vertical multi-stage centrifugal pump.
The purpose of this utility model provides a kind of vertical multi-stage centrifugal pump of being convenient to keep in repair; it can make mechanical seal keep water-tight at work, and mechanical seal is had good protective action, when changing mechanical seal and correlated parts; needn't hang except that motor, easy to maintenance.
Described in the utility model is a kind of vertical multi-stage centrifugal pump of being convenient to keep in repair, and it comprises motor, support, suction casing, the Spit Section, stage casing, pump shaft, be installed in the impeller on the pump shaft, be installed in the following submerged bearing parts in the suction casing, and be installed in mechanical seal and machine sealed cover in the Spit Section; Described support is provided with window, in window, leave one section space length between set motor reel and the pump shaft, be equipped with in the end of motor reel and pump shaft one make this two axle clamp solid to the folder coupling, the push-and-pull regulator that makes these two axially to be connected and fixed is housed between this section space length; Described Spit Section is connected with the machine sealed cover, and cooperates with axle sleeve and mechanical seal on the pump shaft, is provided with into water aperture on the Spit Section, also is provided with the weep hole that joins with water pipe next time, and water pipe is communicated with suction casing next time; The cylindrical of described machine sealed cover is provided with annular groove and aperture.
The utility model can make mechanical seal keep water-tight at work, and mechanical seal is had good protective action, has increased reliability, has prolonged working life.If change mechanical seal and correlated parts, then needn't hang except that motor, as long as some light findings that easily unload of mounting or dismounting, can be rapidly, change easily.As changing the following submerged bearing parts of pump, also needn't take the water pump or the pipeline of dismantling apart, as long as water pump is inverted, keep in repair very convenient.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is a kind of structural representation of the vertical multi-stage centrifugal pump of being convenient to keep in repair.
Fig. 2 is by A-A view shown in Figure 1.
Fig. 3 is the push-and-pull controller structure schematic representation in the above-mentioned centrifugal pump.
Referring to Fig. 1 and Fig. 2, a kind of vertical multi-stage centrifugal pump of being convenient to keep in repair comprises motor 1, support 2, suction casing 3, Spit Section 4, stage casing 5, pump shaft 6, be installed in the impeller 7 on the pump shaft 6, be installed in the following submerged bearing parts 8 in the suction casing 3, and be installed in mechanical seal 9 and machine sealed cover 10 in the Spit Section 4.
Support 2 is provided with window, in window, leave one section space length between set motor reel 11 and the pump shaft 6, be equipped with in the end of motor reel 11 and pump shaft 6 one make this two axle clamp solid to folder coupling 12, the push-and-pull regulator 13 that makes these two axially to be connected and fixed is housed between this section space length.
Spit Section 4 is rigidly connected with support 2, and motor 1 is installed on the support 2.Spit Section 4 is connected and fixed with suction casing 3 with after other water pump component are connected again, and forms the pump pedestal.Spit Section 4 also is connected with machine sealed cover 10, and cooperates with axle sleeve 14, mechanical seal 9 on the pump shaft 6.Be provided with into water aperture 15 on Spit Section 4, also be provided with the weep hole 17 that joins with water pipe 16 next time, water pipe 16 is communicated with suction casing 3 next time.
Stud with upper sealing ring 18 on the Spit Section 4, the little Spielpassung of axle sleeve 14 cylindricals on upper sealing ring 18 and the pump shaft 6.Mechanical seal 9 comprises rotating ring 91 and stationary ring 92, is installed in respectively on the axle sleeve 14.
Mechanical sealing static ring 91 is housed in the machine sealed cover 10.The cylindrical of machine sealed cover 10 is provided with annular groove and four uniform apertures 19.Bleed valve 20 is housed on the machine sealed cover 10.Machine sealed cover 10 is connected with Spit Section 4.Mechanical sealing linkage ring 91 is housed on the axle sleeve 14, forms the friction sealing surface with stationary ring 92.
Spit Section 4 is provided with into water aperture 15, joins with machine sealed cover 10 annular grooves, is communicated with four uniform apertures 19.Spit Section 4 is provided with weep hole 17, joins with water pipe 16 next time, and is communicated with suction casing 3.Form a special seal arrangement and chamber thus, had multimachine reason, multi-functional characteristics.
Bottom two sides of suction casing 3 are respectively equipped with window, and following submerged bearing parts 8 promptly are installed in this window place.Suction casing 3 is connected and fixed with following submerged bearing parts 8, and following submerged bearing parts 8 cooperate the formation lower support with the lower end of pump shaft 6.If when need changing lower bearing parts 8, then hand is put in the window of suction casing 3, back out down submerged bearing parts 8, from the window taking-up or put into and get final product.
Referring to Fig. 3, the one section space length L of being separated by between the top of pump shaft 6 and the motor reel 11 is by solid with this two axle clamp to folder coupling 12.The push-and-pull regulator 13 that makes these two axially to be connected and fixed is housed between this section space length L.Push-and-pull regulator 13 comprises a double threaded screw 131 that is connected with motor reel 11, one thread screw 132 that is connected with pump shaft 6, one nut 133 that this double threaded screw 131, thread screw 132 are connected and fixed, and its two end is inserted in two small blind holes of folder coupling and be interspersed in round pin 134 in nut 133 and the double threaded screw 131.
The thread screw 132 of screwing in the upper end of pump shaft 6, at the axle head of motor reel 11 double threaded screw 131 of screwing on, with nut 133 thread screw 132 and double threaded screw 131 are linked together, 131 of nut 133 and double threaded screws be with round pin 134 pinnings, and insert in two small blind holes of folder coupling with rotation inhibiting.
When taking off push-and-pull regulator 13, must open earlier folder coupling 12, transfer to round pin 134, unclamp nut 133, double threaded screw 131 is screwed into the end on motor reel 11, then thread screw 132 is backed out from pump shaft 6, again double threaded screw 131 is backed out from motor reel 11, abdicate one section space length L.When push-and-pull regulator 13 was installed, then programmed sequence of operations was opposite.
If will change mechanical seal 9, then abdicate one section space length L by the aforesaid operations program after, open machine sealed cover 10, can from this section space length L, machine sealed cover 10, mechanical sealing static ring 92 and rotating ring 91 be taken out or pack into.
When changing axle sleeve 14 if desired,, take out or pack into axle sleeve 14 or upper sealing ring 18 as long as unclamp pump shaft nut 21.If when adjusting the axial position of mechanical seal 9 on the pump shaft 6 and impeller 7, then before loading onto to folder coupling 12, be inserted with the nut 133 and the double threaded screw 131 of round pin 134 by rotation, thread screw 16 is not rotated, so just pump shaft 6 can be moved up and down and be adjusted to suitable position.
Specifically, the utlity model has following advantages:
1, do not need to remove motor, just can change easily mechanical seal and correlated parts. By the support window Open the folder shaft coupling, the push-and-pull adjuster is pulled down, abdicate the space length between motor reel and pump shaft, from spuing Demountor sealed cover and mechanical seal on the section, and take out the space length between pump shaft and motor reel or dress Enter. If turn on the pump shaft nut, can also change other parts such as axle sleeve.
2, wherein special sealing device and chamber have multimachine reason, multi-functional characteristics:
A. as long as open and close vent valve, with near the air scavenge of nest pump top mechanical seal attrition surface, make it to be full of Liquid just can overcome the flimsy shortcoming of mechanical seal dry friction.
B. by aperture on the Spit Section small flow high pressure water slave sealed cover is sprayed to the mechanical seal attrition surface in the aperture on every side, to its cooling of washing, lubricate, circulate, with regard to the life-span that can improve and prolonged mechanical seals.
C. axle sleeve cooperates with upper sealing ring, parting seal device chamber and pump zone of high pressure, formation is the low pressure seal chamber with axle sleeve one side, opposite side is a high-pressure sealing chamber, make downward axial force bigger on the multistage centrifugal pump be able to balance, to alleviate load to the motor upper bearing (metal), improve the life-span and the durability of bearing, also do not need because of bearing the ad hoc thrust bearing device of bigger axial force of multistage centrifugal pump.
D. keep lower pressure in the Seal cage, its pressure is close with suction casing pressure, when the pump stage number increase, when discharge pressure increases, less to its influence, like this just the reduction to the requirement of mechanical seal aspect withstand voltage.
E. if high pressure water inlet, Spit Section is stopped up; again bleed valve and return pipe position are connect the cooling water that flows to other; just the suction medium temperature that vertical multi-stage centrifugal pump generally is suitable for can be brought up to 120 ℃ by 80 ℃; so mechanical seal is still had better protect effect, proper functioning well.
3, the push-and-pull regulator axially is connected and fixed motor reel and pump shaft diaxon by screw thread, can make progress, downward bi-directional axial force, that the folder coupling is transmitted axial force by friction is more reliable than using, simultaneously, alleviated power transmission burden, made its special peripheral force of transmitting the folder coupling.Push-and-pull regulator also can regulate pump shaft moves up and down, and makes mechanical seal attrition surface and impeller be in the tram, guarantees water pump and mechanical seal proper functioning.
4, can cooperate with installation procedure is organic between the length of the double threaded screw in the push-and-pull regulator, thread screw, nut, can be under the condition that motor, water pump do not move, load onto easily or pull down the push-and-pull regulator, make motor reel, pump shaft two end axles to being connected and fixed or abdicating space length.Insert the round pin in nut and the double threaded screw, both can be used as the handle that rotates double threaded screw, but insert anti-rotation, locking again in two small blind holes of folder coupling at the round pin two ends.On to folder coupling each slit bamboo or chopped wood, carrying out the screw design, make its interim a bolt is installed after, the handle when just can be used as loading and unloading to the folder coupling.
5, by two side window mouths of suction casing bottom, detachably descend the submerged bearing parts, and need not take water pump apart or take pipeline apart, as long as more change jobs rapid, laborsaving and convenience with just changing down the submerged bearing parts after the pump inversion, making.
Claims (6)
1. vertical multi-stage centrifugal pump of being convenient to keep in repair, it comprises motor, support, suction casing, the Spit Section, the stage casing, pump shaft is installed in the impeller on the pump shaft, is installed in the following submerged bearing parts in the suction casing, and be installed in mechanical seal and machine sealed cover in the Spit Section, it is characterized in that described support is provided with window, in window, leave one section space length between set motor reel and the pump shaft, be equipped with in the end of motor reel and pump shaft one make this two axle clamp solid to the folder coupling, the push-and-pull regulator that makes these two axially to be connected and fixed is housed between this section space length; Described Spit Section is connected with the machine sealed cover, and cooperates with axle sleeve and mechanical seal on the pump shaft, is provided with into water aperture on the Spit Section, also is provided with the weep hole that joins with water pipe next time, and water pipe is communicated with suction casing next time; The cylindrical of described machine sealed cover is provided with annular groove and aperture.
2. the vertical multi-stage centrifugal pump of being convenient to keep in repair according to claim 1 is characterized in that, studs with upper sealing ring on the described Spit Section, the little Spielpassung of the sleeve outer circle on upper sealing ring and the pump shaft.
3. the vertical multi-stage centrifugal pump of being convenient to keep in repair according to claim 1 is characterized in that described mechanical seal comprises rotating ring and stationary ring, is installed on the axle sleeve respectively.
4. the vertical multi-stage centrifugal pump of being convenient to keep in repair according to claim 1 is characterized in that, on the described machine sealed cover bleed valve is housed.
5. the vertical multi-stage centrifugal pump of being convenient to keep in repair according to claim 1, it is characterized in that, described push-and-pull regulator comprises a double threaded screw that is connected with motor reel, one thread screw that is connected with pump shaft, one nut that this double threaded screw, thread screw are connected and fixed, and its two end is inserted in two small blind holes of folder coupling and be interspersed in round pin in nut and the double threaded screw.
6. the vertical multi-stage centrifugal pump of being convenient to keep in repair according to claim 1 is characterized in that, bottom two sides of described suction casing are respectively equipped with window, and following submerged bearing parts promptly are installed in this window place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218453 CN2434451Y (en) | 2000-07-18 | 2000-07-18 | Ease-to-repair vertical multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218453 CN2434451Y (en) | 2000-07-18 | 2000-07-18 | Ease-to-repair vertical multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434451Y true CN2434451Y (en) | 2001-06-13 |
Family
ID=33583827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218453 Expired - Fee Related CN2434451Y (en) | 2000-07-18 | 2000-07-18 | Ease-to-repair vertical multi-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434451Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644268B (en) * | 2009-08-21 | 2011-05-18 | 江西省万载水泵有限责任公司 | Centrifugal pump |
| CN103398012A (en) * | 2013-08-15 | 2013-11-20 | 沈阳三科水力机械制造有限公司 | Start-stop water feeding pump of nuclear power station |
| ITPD20120284A1 (en) * | 2012-10-02 | 2014-04-03 | Dab Pumps Spa | PERFECT CENTRIFUGAL ELECTRIC PUMP STRUCTURE |
| CN105626540A (en) * | 2015-12-02 | 2016-06-01 | 池泉 | Sectional multistage centrifugal pump |
| CN105650446A (en) * | 2016-01-03 | 2016-06-08 | 詹白勺 | Rapid starting vertical type multistage centrifugal oil pump throttled and sealed by balancing drum |
| CN105650445A (en) * | 2016-01-03 | 2016-06-08 | 詹白勺 | Double-tap vertical oil pump capable of being rapidly started |
| CN105736396A (en) * | 2016-04-29 | 2016-07-06 | 浙江南元泵业有限公司 | Vibration-proof pipeline pump |
| CN105736397A (en) * | 2016-04-29 | 2016-07-06 | 浙江南元泵业有限公司 | Pipeline pump convenient to disassemble |
| CN105782067A (en) * | 2016-04-29 | 2016-07-20 | 浙江南元泵业有限公司 | Pipeline pump |
| CN110985551A (en) * | 2019-11-08 | 2020-04-10 | 西安泵阀总厂有限公司 | Long-distance vertical floating support shafting structure |
-
2000
- 2000-07-18 CN CN 00218453 patent/CN2434451Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644268B (en) * | 2009-08-21 | 2011-05-18 | 江西省万载水泵有限责任公司 | Centrifugal pump |
| RU2621851C2 (en) * | 2012-10-02 | 2017-06-07 | Даб Пампс С.П.А. | Centrifugal electrically-driven pump |
| ITPD20120284A1 (en) * | 2012-10-02 | 2014-04-03 | Dab Pumps Spa | PERFECT CENTRIFUGAL ELECTRIC PUMP STRUCTURE |
| EP2716914A1 (en) * | 2012-10-02 | 2014-04-09 | Dab Pumps S.p.A. | Centrifugal electric pump |
| CN103398012A (en) * | 2013-08-15 | 2013-11-20 | 沈阳三科水力机械制造有限公司 | Start-stop water feeding pump of nuclear power station |
| CN103398012B (en) * | 2013-08-15 | 2015-12-23 | 沈阳三科水力机械制造有限公司 | Nuclear power station start and stop feed water pump |
| CN105626540A (en) * | 2015-12-02 | 2016-06-01 | 池泉 | Sectional multistage centrifugal pump |
| CN105650446B (en) * | 2016-01-03 | 2017-10-27 | 华东交通大学 | Balancing drum throttling is sealedly quick to start vertical multi-stage centrifugal oil pump |
| CN105650445A (en) * | 2016-01-03 | 2016-06-08 | 詹白勺 | Double-tap vertical oil pump capable of being rapidly started |
| CN105650446A (en) * | 2016-01-03 | 2016-06-08 | 詹白勺 | Rapid starting vertical type multistage centrifugal oil pump throttled and sealed by balancing drum |
| CN105650446B8 (en) * | 2016-01-03 | 2018-12-07 | 浙江水泵总厂有限公司 | The quick start vertical multi-stage centrifugal oil pump of balancing drum throttling sealing |
| CN105736396A (en) * | 2016-04-29 | 2016-07-06 | 浙江南元泵业有限公司 | Vibration-proof pipeline pump |
| CN105736397A (en) * | 2016-04-29 | 2016-07-06 | 浙江南元泵业有限公司 | Pipeline pump convenient to disassemble |
| CN105782067A (en) * | 2016-04-29 | 2016-07-20 | 浙江南元泵业有限公司 | Pipeline pump |
| CN110985551A (en) * | 2019-11-08 | 2020-04-10 | 西安泵阀总厂有限公司 | Long-distance vertical floating support shafting structure |
| CN110985551B (en) * | 2019-11-08 | 2021-08-06 | 西安泵阀总厂有限公司 | Long-distance vertical floating support shafting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |