CN104564789A - Pump shaft seal structure of high-temperature magnetic pump - Google Patents
Pump shaft seal structure of high-temperature magnetic pump Download PDFInfo
- Publication number
- CN104564789A CN104564789A CN201410819955.XA CN201410819955A CN104564789A CN 104564789 A CN104564789 A CN 104564789A CN 201410819955 A CN201410819955 A CN 201410819955A CN 104564789 A CN104564789 A CN 104564789A
- Authority
- CN
- China
- Prior art keywords
- pump
- sliding bearing
- pump shaft
- temperature
- bearing
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/20—Oxide or non-oxide ceramics
- F05D2300/22—Non-oxide ceramics
- F05D2300/226—Carbides
- F05D2300/2261—Carbides of silicon
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pump shaft seal structure of a high-temperature magnetic pump. The pump shaft seal structure comprises a pump shaft and a shaft sleeve body, wherein the shaft sleeve is internally provided with a sliding bearing; the inner ring of the sliding bearing is matched with a shaft sleeve; a bearing compensation plate is arranged between the sliding bearing and the shaft sleeve; the shaft sleeve is internally matched with the pump shaft; the end part of the pump shaft is provided with an impeller and an impeller nut; a thrust ring is arranged between the sliding bearing and the rear end surface of the impeller. A high-temperature structure is used for high-temperature media so as to prevent silicon carbide from being damaged by high temperature; the compensation plate is additionally arranged between the shaft sleeve and the sliding bearing and is used for absorbing high-temperature expansion deformation of metals, so that silicon carbide thermal expansion damages are prevented; a water-cooling mode is adopted for a bearing box, so that the temperature of a rolling bearing is controlled.
Description
Technical field
The present invention relates to magnetic drive pump field, specifically belong to the pump shaft seal structure of High-temperature Magnetic Pump.
Background technique
Magnetic drive pump is made up of pump, magnetic driver, motor three part.Critical component magnetic driver is made up of outer magnet rotor, interior magnet rotor and non-magnetic separation sleeve.When motor drives the rotation of outer magnet rotor, magnetic field energy penetrates air gap and namagnetic substance, drives magnet rotor in being connected with impeller to make synchronous rotary, realizes the non contact transmission of power, motive sealing is converted into static seal.At present, magnetic drive pump in high temperature environments, also exists poor sealing performance, the shortcoming that running easily breaks down.
Summary of the invention
The object of this invention is to provide a kind of pump shaft seal structure of High-temperature Magnetic Pump, thermal structure of the present invention, for high temperature media, in order to prevent silicon carbide due to high temperature failure, compensating plate is increased at axle sleeve and sliding bearing position, for absorbing the distortion that metallic high temperature expands, thus prevent silicon carbide thermal expansion from damaging; Bearing housing adopts water-cooled form, to control the temperature of rolling bearing.
Technological scheme of the present invention is as follows:
The pump shaft seal structure of High-temperature Magnetic Pump, include pump shaft, sleeve body, in bearing support, sliding bearing is installed, sliding bearing inner ring is combined with axle sleeve, bearing compensating plate is provided with between sliding bearing and axle sleeve, be combined with pump shaft in axle sleeve, the end of pump shaft is provided with impeller, impeller nut, is provided with Thrust ring between sliding bearing and impeller ear end face.
Described Thrust ring, the material of sliding bearing are silicon carbide.
Thermal structure of the present invention, for high temperature media, in order to prevent silicon carbide due to high temperature failure, increases compensating plate at axle sleeve and sliding bearing position, for absorbing the distortion that metallic high temperature expands, thus prevents silicon carbide thermal expansion from damaging; Bearing housing adopts water-cooled form, to control the temperature of rolling bearing.Have resistant to elevated temperatures characteristic, sealability is improved simultaneously, and working life extends.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
See accompanying drawing, the pump shaft seal structure of High-temperature Magnetic Pump, include pump shaft 1, sleeve body 2, sliding bearing 3 is installed in bearing support 2, sliding bearing 3 inner ring is combined with axle sleeve 4, is provided with bearing compensating plate 5 between sliding bearing 3 and axle sleeve 4, is combined with pump shaft 1 in axle sleeve 4, the end of pump shaft 1 is provided with impeller 6, impeller nut 7, is provided with Thrust ring 8 between sliding bearing 3 and impeller 6 ear end face.The material of Thrust ring 8, sliding bearing 3 is silicon carbide.
Claims (2)
1. the pump shaft seal structure of High-temperature Magnetic Pump, include pump shaft, sleeve body, it is characterized in that, in bearing support, sliding bearing is installed, sliding bearing inner ring is combined with axle sleeve, is provided with bearing compensating plate, is combined with pump shaft in axle sleeve between sliding bearing and axle sleeve, the end of pump shaft is provided with impeller, impeller nut, is provided with Thrust ring between sliding bearing and impeller ear end face.
2. the pump shaft seal structure of High-temperature Magnetic Pump according to claim 1, is characterized in that, described Thrust ring, the material of sliding bearing are silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819955.XA CN104564789A (en) | 2014-12-24 | 2014-12-24 | Pump shaft seal structure of high-temperature magnetic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819955.XA CN104564789A (en) | 2014-12-24 | 2014-12-24 | Pump shaft seal structure of high-temperature magnetic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564789A true CN104564789A (en) | 2015-04-29 |
Family
ID=53081638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819955.XA Pending CN104564789A (en) | 2014-12-24 | 2014-12-24 | Pump shaft seal structure of high-temperature magnetic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030193A (en) * | 2019-05-16 | 2019-07-19 | 上海创科泵业制造有限公司 | Multi-stage shield pump and the water-carriage system for applying it |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0431332B1 (en) * | 1989-11-08 | 1995-11-02 | Sanwa Tokushu Seiko Co., Ltd. | Magnetically driven pump |
| US20020094286A1 (en) * | 1995-12-04 | 2002-07-18 | Dan Nguyen | Bearings with hardened rolling filements and polymeric cages for use submerged in very low temperature fluids |
| CN2806839Y (en) * | 2004-12-27 | 2006-08-16 | 靖江凯士比泵业有限公司 | High efficiency slurry chemical pump |
| CN2828396Y (en) * | 2005-11-18 | 2006-10-18 | 丹东克隆集团有限责任公司 | Non-vortex hot ceramic separate cover magnetic pump |
| CN201401359Y (en) * | 2009-05-13 | 2010-02-10 | 丹东克隆集团有限责任公司 | Sliding bearing device of magnetic pump |
| CN102410227A (en) * | 2010-09-25 | 2012-04-11 | 太仓顺达磁力泵科技有限公司 | Magnetic pump |
| CN202579277U (en) * | 2012-04-27 | 2012-12-05 | 丹东克隆先锋泵业有限公司 | Magnetic pump spindle shaft sleeve mechanism with expanding buffer sleeve |
| CN103573682A (en) * | 2012-07-31 | 2014-02-12 | 上海佰诺泵阀有限公司 | Magnetic drive pump with bearing block |
-
2014
- 2014-12-24 CN CN201410819955.XA patent/CN104564789A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0431332B1 (en) * | 1989-11-08 | 1995-11-02 | Sanwa Tokushu Seiko Co., Ltd. | Magnetically driven pump |
| US20020094286A1 (en) * | 1995-12-04 | 2002-07-18 | Dan Nguyen | Bearings with hardened rolling filements and polymeric cages for use submerged in very low temperature fluids |
| CN2806839Y (en) * | 2004-12-27 | 2006-08-16 | 靖江凯士比泵业有限公司 | High efficiency slurry chemical pump |
| CN2828396Y (en) * | 2005-11-18 | 2006-10-18 | 丹东克隆集团有限责任公司 | Non-vortex hot ceramic separate cover magnetic pump |
| CN201401359Y (en) * | 2009-05-13 | 2010-02-10 | 丹东克隆集团有限责任公司 | Sliding bearing device of magnetic pump |
| CN102410227A (en) * | 2010-09-25 | 2012-04-11 | 太仓顺达磁力泵科技有限公司 | Magnetic pump |
| CN202579277U (en) * | 2012-04-27 | 2012-12-05 | 丹东克隆先锋泵业有限公司 | Magnetic pump spindle shaft sleeve mechanism with expanding buffer sleeve |
| CN103573682A (en) * | 2012-07-31 | 2014-02-12 | 上海佰诺泵阀有限公司 | Magnetic drive pump with bearing block |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030193A (en) * | 2019-05-16 | 2019-07-19 | 上海创科泵业制造有限公司 | Multi-stage shield pump and the water-carriage system for applying it |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |