CN103291641A - Mining special multistage centrifugal pump - Google Patents
Mining special multistage centrifugal pump Download PDFInfo
- Publication number
- CN103291641A CN103291641A CN2013101828522A CN201310182852A CN103291641A CN 103291641 A CN103291641 A CN 103291641A CN 2013101828522 A CN2013101828522 A CN 2013101828522A CN 201310182852 A CN201310182852 A CN 201310182852A CN 103291641 A CN103291641 A CN 103291641A
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- balance
- pump
- multistage centrifugal
- balance plate
- centrifugal pump
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Abstract
The invention discloses a mining special multistage centrifugal pump comprising a pump body and a pump shaft. A balance plate and a balance disk are fixedly sleeved on the pump shaft, a spacer is spaced between the balance plate and a water outlet section of the pump body, a balance backing ring is fixedly connected to the side wall of the balance disk, and a cobalt-based RC alloy layer 6-8mm in thickness is surfaced on a friction surface between the balance backing ring and the balance plate. On the premise of keeping thickness constant, service lives of balance devices are approximately doubled, namely are increased from 4000 hours to 7000 hours.
Description
Technical field
The present invention relates to a kind of centrifugal pump field, specifically belong to mining extraordinary multistage centrifugal pump.
Background technique
Centrifugal pump is that flowing medium enters from blade rotor root (import), and medium relies on the high speed rotating blade to obtain centrifugal force, produces a high pressure, from the medium transport equipment of pressure relief opening (outlet) outflow.Multistage centrifugal pump is that the plural pump that will have said function gathers together, on the fluid channel structure, the medium pressure relief opening that shows the first order communicates with partial import, and partial medium pressure relief opening communicates with the import of the third level, and so the mechanism of series connection has formed multistage centrifugal pump.The meaning of multistage centrifugal pump is to improve setting pressure.
The multistage centrifugal pump of prior art, the wear phenomenon between balance grommet and the balance plate is very serious, needs frequent renewal part.
Summary of the invention
The purpose of this invention is to provide a kind of mining extraordinary multistage centrifugal pump, under the constant prerequisite of thickness, nearly doubled the working life of Equilibrator, namely be increased to 7000 hours by former 4000 hours.
Technological scheme of the present invention is as follows:
Mining extraordinary multistage centrifugal pump, include the pump housing, pump shaft, fixed cover is equipped with balance plate, Balance disc on the pump shaft, be equipped with gasket ring between the water exit end of balance plate and the pump housing, be fixedly connected with the balance grommet on the Balance disc sidewall, on balance grommet and the balance plate rubbing surface each other respectively built-up welding cobalt-based RC alloy-layer is arranged, the thickness of cobalt-based RC alloy-layer is 6-8mm.
Described balance plate is connected on the water exit end of the pump housing by regulating bolt.
Compared with prior art, the present invention has following advantage:
On surface of contact built-up welding plasma high abrasion cobalt-based gold Rc alloy, under the constant prerequisite of thickness, nearly doubled the working life of Equilibrator, namely be increased to 7000 hours by former 4000 hours.
2. after the rubbing surface of balance plate and two contact components of balance grommet is thickeied simultaneously, make prolong one times again the working life of Equilibrator.
3. advance balance plate to move axially to the pump head direction by regulating bolt, for guaranteeing the normal running clearance between balance plate and the balance grommet.Designed the quantity of pad (spacer thickness 1mm) according to the distance decision increase pad that advances, balance plate is closely contacted with the water exit end inwall by pad, can be effectively stressed when guaranteeing balance plate and balance grommet operation friction bump, allow pump be in optimal operational condition, the operational efficiency of pump significantly improves.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Referring to accompanying drawing, mining extraordinary multistage centrifugal pump, include the pump housing 1, pump shaft 2, fixed cover is equipped with balance plate 3, Balance disc 4 on the pump shaft 2, be equipped with gasket ring 5 between the water exit end of balance plate 3 and the pump housing 1, be fixedly connected with balance grommet 6 on Balance disc 4 sidewalls, on balance grommet 6 and balance plate 3 rubbing surface each other respectively built-up welding cobalt-based RC alloy-layer is arranged, the thickness of cobalt-based RC alloy-layer is 6-8mm, and balance plate 3 is fixedly linked on the water exit end of the pump housing 1 by regulating bolt 8.
Claims (2)
1. mining extraordinary multistage centrifugal pump, include the pump housing, pump shaft, it is characterized in that, fixed cover is equipped with balance plate, Balance disc on the pump shaft, be equipped with gasket ring between the water exit end of balance plate and the pump housing, be fixedly connected with the balance grommet on the Balance disc sidewall, on balance grommet and the balance plate rubbing surface each other respectively built-up welding cobalt-based RC alloy-layer is arranged, the thickness of cobalt-based RC alloy-layer is 6-8mm.
2. mining extraordinary multistage centrifugal pump according to claim 1 is characterized in that: described balance plate is connected on the water exit end of the pump housing by regulating bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101828522A CN103291641A (en) | 2013-05-16 | 2013-05-16 | Mining special multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101828522A CN103291641A (en) | 2013-05-16 | 2013-05-16 | Mining special multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103291641A true CN103291641A (en) | 2013-09-11 |
Family
ID=49093034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101828522A Pending CN103291641A (en) | 2013-05-16 | 2013-05-16 | Mining special multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103291641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141611A (en) * | 2014-07-18 | 2014-11-12 | 安徽三环水泵有限责任公司 | Mining ultra multi-stage type centrifugal pump |
| CN106122030A (en) * | 2016-06-27 | 2016-11-16 | 华北水利水电大学 | A kind of rated lift type variable horizontal type multi-stage pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049699U (en) * | 1988-11-28 | 1989-12-20 | 煤炭科学研究院唐山分院 | Multi-stage centrifugal postposition pump capable of bearing axial impact force |
| CN2164471Y (en) * | 1993-06-02 | 1994-05-11 | 王太兴 | Plunger assemble for oil pump |
| US20010002742A1 (en) * | 1998-08-25 | 2001-06-07 | H . Vicent Harsha | Shaft seal assembly |
| CN202612682U (en) * | 2012-05-29 | 2012-12-19 | 中国船舶重工集团公司第七一九研究所 | Spherical-surface linear-sealing corrugated pipe stop valve |
| CN102996496A (en) * | 2012-11-20 | 2013-03-27 | 锦州重型水泵有限公司 | Self-balancing self-positioning energy-saving multi-stage water pump |
| CN203297163U (en) * | 2013-05-16 | 2013-11-20 | 安徽三环水泵有限责任公司 | Special centrifugal pump for mine |
-
2013
- 2013-05-16 CN CN2013101828522A patent/CN103291641A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049699U (en) * | 1988-11-28 | 1989-12-20 | 煤炭科学研究院唐山分院 | Multi-stage centrifugal postposition pump capable of bearing axial impact force |
| CN2164471Y (en) * | 1993-06-02 | 1994-05-11 | 王太兴 | Plunger assemble for oil pump |
| US20010002742A1 (en) * | 1998-08-25 | 2001-06-07 | H . Vicent Harsha | Shaft seal assembly |
| CN202612682U (en) * | 2012-05-29 | 2012-12-19 | 中国船舶重工集团公司第七一九研究所 | Spherical-surface linear-sealing corrugated pipe stop valve |
| CN102996496A (en) * | 2012-11-20 | 2013-03-27 | 锦州重型水泵有限公司 | Self-balancing self-positioning energy-saving multi-stage water pump |
| CN203297163U (en) * | 2013-05-16 | 2013-11-20 | 安徽三环水泵有限责任公司 | Special centrifugal pump for mine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141611A (en) * | 2014-07-18 | 2014-11-12 | 安徽三环水泵有限责任公司 | Mining ultra multi-stage type centrifugal pump |
| CN106122030A (en) * | 2016-06-27 | 2016-11-16 | 华北水利水电大学 | A kind of rated lift type variable horizontal type multi-stage pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130911 |
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| RJ01 | Rejection of invention patent application after publication |