CN203452993U - Low-revolving speed water turbine collar pump structure - Google Patents
Low-revolving speed water turbine collar pump structure Download PDFInfo
- Publication number
- CN203452993U CN203452993U CN201320416902.4U CN201320416902U CN203452993U CN 203452993 U CN203452993 U CN 203452993U CN 201320416902 U CN201320416902 U CN 201320416902U CN 203452993 U CN203452993 U CN 203452993U
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- China
- Prior art keywords
- pump
- collar
- neck
- oil catch
- main shaft
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a low-revolving speed water turbine collar pump structure. A collar pump is in bolted connection with the lower end of a main shaft collar of a water turbine; the collar pump is provided with a pump inlet ring cavity and a plurality of inclined holes, which are connected with a pump outlet cavity; a seal strip is disposed between the main shaft collar and the collar pump for seal and a stop is used for location; follow-up oil catches are arranged on the upper end surface of an upper support and the lower end surface of a lower support and contact seal rings are arranged between one follow-up oil catch and the external circumferential surface of the main shaft collar and between the other follow-up oil catch and the external circumferential surface of a lower collar of the collar pump; a seal strip is arranged between bolt connection surfaces for seal; and the main shaft collar, the collar pump, the lower collar of the collar pump, the lower follow-up oil catch, the lower support, the upper support and the upper follow-up oil catch form the outlet cavity of the collar pump. The low-revolving speed water turbine collar pump structure can be applied to a low-revolving speed water turbine, meets the requirement for development of hydraulic power technology, guarantees the stability of units, improves the safety and reliability and increases the benefits of power stations.
Description
Technical field
The utility model relates to slow-speed of revolution turbine shaft neck pump structure.
Background technique
High rotary speed water turbine adopts the circulation of axle neck self-pumping to be commonly used both at home and abroad, because the bearing operation maintenance of self-pumping outer circulation is simple, at slow-revving water turbine also in development and application, the following technical barrier of main appearance: 1) rotational speed of water turbine is low, the radial hole limited length of directly offering on axle neck, delivery side of pump pressure is low, cannot meet water pilot bearing oil outer circulation power.2) generally apply additional recycle pump and carry out circulating cooling mode; need the Power Plant layout recycle unit that has living space; the cost of equipment is higher; must often safeguard; because plant issue causes accidental shutdown, happen occasionally, be unfavorable for power plant safety stable operation, increase the unit maintenance cycle; improve the operation expense of unit, reduced power station generated energy.
Summary of the invention
The purpose of this utility model is to provide a kind of simple and compact for structure, and safety reliability is strong, meets slow-speed of revolution turbine shaft neck pump structure.The purpose of this utility model is achieved through the following technical solutions: in hydraulic turbine main shaft axle neck lower end, by bolt, sympodium is led to pump, on axle neck pump, have pump inlet ring cavity and several oblique hole and pump oral cavity and be connected, between main shaft axle neck and axle neck pump, Stamping Steel Ribbon sealing is set, and adopt seam to locate, upper bracket upper-end surface installs servo-actuated oil catch and main shaft axle neck cylindrical arranges Contact Seal ring seal shaft neck pump epicoele, and Stamping Steel Ribbon sealing is set between upper servo-actuated oil catch and upper bracket, lower support frame lower end surface arranges Contact Seal ring seal shaft neck pump cavity of resorption the lower shaft neck cylindrical that closes lower servo-actuated oil catch and axle neck pump.And lower support frame and lower servo-actuated oil catch arrange Stamping Steel Ribbon sealing closing between face, lower support frame puts together on the lower end of upper bracket by bolt, closing between face, seal ring sealing is set, main shaft axle neck, axle neck pump and lower shaft neck, lower servo-actuated oil catch, lower support frame, upper bracket and upper servo-actuated oil catch parts have formed axle neck delivery side of pump chamber.
Recycle oil enters from axle neck pump inlet ring cavity, at main shaft band rotating ring, turns lower acting, from delivery side of pump, enters outlet plenum, and stroke certain pressure impels oil circulation to enter cooling system.Wherein opening oblique hole object mainly increases the length of radial hole, make oil in hole under the effect of centrifugal force, do work more, improve the pressure in delivery side of pump chamber, meet the required power of the oily circulatory system, main shaft axle neck also adopts seam location with axle neck pump, and bolt is closing, safety and reliability when axle neck pump is rotated.The servo-actuated oil catch that install upper lower support frame upper and lower end face and main shaft axle neck and axle neck pump lower shaft neck cylindrical arrange contact-type Follow-up seal circle, mainly because main shaft rotation is to have ferry-boat, contact-type Follow-up seal circle moves with the ferry-boat of main shaft rotation, improved sealing effect, reduce the oily leakage in axle neck pump discharge pressure chamber, reduce volumetric loss, improve the efficiency of axle neck pump.The utility model slow-speed of revolution turbine shaft neck pump structure, meets application on slow-speed of revolution water turbine and becomes a reality, and has reduction equipment manufacturing cost, reduces power station operation expense, increases economic efficiency.Meet the requirement of waterpower development, simultaneously simple and reasonable, good manufacturability, the feature such as safety reliability is strong.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model
Fig. 2 is the axle neck oblique hole of pump layout plan
Embodiment
As depicted in figs. 1 and 2, at hydraulic turbine main shaft axle, lead 1 lower end, by bolt 2, sympodium is led to pump 3, on axle neck pump 3, have pump inlet ring cavity 4 and several oblique hole 5 and pump oral cavity 6 and be connected, between main shaft axle neck 1 and axle neck pump 3, Stamping Steel Ribbon 7 sealings are set, and adopt seam 8 to locate, upper bracket 9 upper-end surfaces are installed servo-actuated oil catch 10 and are led 1 cylindrical that Contact Seal ring 11 seal shaft neck pump 3 epicoeles are set with main shaft axle, and Stamping Steel Ribbon 12 sealings are set between upper servo-actuated oil catch 10 and upper bracket 9, lower support frame 13 lower end surfaces lead 15 cylindricals that Contact Seal ring 16 seal shaft neck pump 3 cavity of resorptions are set closing lower servo-actuated oil catch 14 with the lower shaft of axle neck pump 3.And lower support frame 13 and lower servo-actuated oil catch 14 arranges Stamping Steel Ribbon 16 sealings closing between face, lower support frame 13 puts together on the lower end of upper bracket 9 by bolt 17, closing between face, seal ring 18 sealings are set, main shaft axle neck 1, axle neck pump 3 and lower shaft neck 15, lower servo-actuated oil catch 14, lower support frame 13, upper bracket 9 and upper servo-actuated oil catch 10 parts have formed the outlet plenum 19 of axle neck pump 3.The utility model slow-speed of revolution turbine shaft neck pump structure, meets application on slow-speed of revolution water turbine and becomes a reality, and meets the requirement of the development of waterpower technology, has guaranteed that unit has good stability, and has improved safety and reliability, improves power generation.
Claims (1)
1. a slow-speed of revolution turbine shaft is led pump structure, it is characterized in that: in hydraulic turbine main shaft axle neck (1) lower end, by bolt (2), sympodium is led to pump (3), on axle neck pump (3), have pump inlet ring cavity (4) and several oblique hole (5) and pump oral cavity (6) and be connected, Stamping Steel Ribbon (7) sealing is set between main shaft axle neck (1) and axle neck pump (3), and adopt seam (8) to locate, upper bracket (9) upper-end surface is installed servo-actuated oil catch (10), with main shaft axle neck (1) cylindrical, Contact Seal ring (11) seal shaft neck pump (3) epicoele is set, and Stamping Steel Ribbon (12) sealing is set between upper servo-actuated oil catch (10) and upper bracket (9), lower support frame (13) lower end surface arranges Contact Seal ring (16) seal shaft neck pump (3) cavity of resorption closing lower servo-actuated oil catch (14) lower shaft neck (15) cylindrical with axle neck pump (3), and lower support frame (13) and lower servo-actuated oil catch (14) arrange Stamping Steel Ribbon (17) sealing closing between face, lower support frame (13) puts together on the lower end of upper bracket (9) by bolt (18), closing, seal ring (19) sealing is set between face, main shaft axle neck (1), axle neck pump (3) and lower shaft neck (15) thereof, lower servo-actuated oil catch (14), lower support frame (13), upper bracket (9) and upper servo-actuated oil catch (10) parts have formed the outlet plenum (6) of axle neck pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416902.4U CN203452993U (en) | 2013-07-12 | 2013-07-12 | Low-revolving speed water turbine collar pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416902.4U CN203452993U (en) | 2013-07-12 | 2013-07-12 | Low-revolving speed water turbine collar pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452993U true CN203452993U (en) | 2014-02-26 |
Family
ID=50132875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416902.4U Expired - Fee Related CN203452993U (en) | 2013-07-12 | 2013-07-12 | Low-revolving speed water turbine collar pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452993U (en) |
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2013
- 2013-07-12 CN CN201320416902.4U patent/CN203452993U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20180712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |