CN204239756U - Main shaft seal floating ring Novel sliding seals - Google Patents
Main shaft seal floating ring Novel sliding seals Download PDFInfo
- Publication number
- CN204239756U CN204239756U CN201420584343.2U CN201420584343U CN204239756U CN 204239756 U CN204239756 U CN 204239756U CN 201420584343 U CN201420584343 U CN 201420584343U CN 204239756 U CN204239756 U CN 204239756U
- Authority
- CN
- China
- Prior art keywords
- seal
- main shaft
- sealing
- type
- shaft seal
- 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.)
- Expired - Fee Related
Links
- 238000007667 floating Methods 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000004519 grease Substances 0.000 claims abstract description 4
- 230000001050 lubricating effect Effects 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010977 unit operation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Sealing Devices (AREA)
Abstract
The purpose of this utility model is to provide and a kind ofly static pressure self-regulation main shaft seal can be made to be widely used in accumulation of energy unit seal with the main shaft seal floating ring Novel sliding of other high tailrace level units.The purpose of this utility model is achieved through the following technical solutions: upper cover seal groove fills up lubricating grease, and Y type sealed open is loaded in seal groove down.The utility model advantage is: 1) Y type seals withstand voltage scope extensively, and design sealing load is not more than 4.2MPa, can meet all high tailrace level units sealing demand; 2) Y type is sealed into slipper seal, and the design lines speed of this sealing is 0.5m/s, can meet main shaft seal need of work; 3) structure is simple, is easy to promote, and static pressure self-interacting type can be made to seal and be widely used in accumulation of energy and other high tailrace level units.
Description
Technical field:
The utility model relates to the sealing of a kind of main shaft seal floating ring Novel sliding.
Background technique:
Hydraulic turbine main shaft sealing comprises working seal and maintenance sealing, and working seal drops into tail water when ensureing unit operation and do not enter water-turbine top cover.Along with the progress in epoch and the fast development of water turbine, need to build more pumped storage power stations.Static pressure self-regulation main shaft seal technology maturation, is widely used, seal ring long service life.But be applied to the contour tailwater level unit of accumulation of energy unit, but there is a problem: tailwater level, higher than 0.5MPa, much larger than the high tail water of conventional power unit, proposes higher requirement to sealingly secure.
Summary of the invention:
The purpose of this utility model is to provide and a kind ofly static pressure self-regulation main shaft seal can be made to be widely used in accumulation of energy unit seal with the main shaft seal floating ring Novel sliding of other high tailrace level units.The purpose of this utility model is achieved through the following technical solutions: overall is radial structure, floating ring (1) and upper cover (3) adopt Spielpassung, after upper cover (3) seal groove fills up lubricating grease, (2) are opening down is loaded in seal groove for the sealing of Y type, use as motive sealing.
The utility model advantage is: 1) Y type seals withstand voltage scope extensively, and design sealing load is not more than 4.2MPa, can meet all high tailrace level units sealing demand; 2) Y type is sealed into slipper seal, and the design lines speed of this sealing is 0.5m/s, can meet main shaft seal need of work; 3) structure is simple, is easy to promote, and static pressure self-interacting type can be made to seal and be widely used in accumulation of energy and other high tailrace level units.
Accompanying drawing illustrates:
Fig. 1 is overall structure of the present utility model.
Embodiment:
A kind of Novel sliding sealing configuration of high tailrace level hydraulic turbine main shaft sealing floating ring use as shown in Figure 1.
Fill up lubricating grease in upper cover 3 seal groove, and install Y type sealing 2, Y type sealed open down herein, and floating ring 1 and Y type seal 2 surface of contact and pile copper and ensure machining accuracy.During unit operation, floating ring 1 has the float-amount being not more than 0.1mm, and after the wearing and tearing of floating ring 1 sealing block, floating ring 1 has the amount of moving down being not more than 12mm.Therefore Y type sealing 2 is slipper seal.The effect of Y type sealing 2 is sealing upper cover 3 cavity of resorption tail water, prevents tail water from entering top cover.This Novel sliding seals, and is mainly used in the high tailrace level water turbine of more than 0.5MPa.
The utility model slipper seal, the highest water shutoff pressure is 4.2MPa, and application area is extremely wide, and water shutoff pressure is higher, and sealing is better.The utility model structure is simple, is easy to promote, to the application of static pressure self-regulation main shaft seal with promote significant.
Claims (1)
1. a main shaft seal floating ring Novel sliding sealing, it is characterized in that: overall is radial structure, floating ring (1) and upper cover (3) adopt Spielpassung, after upper cover (3) seal groove fills up lubricating grease, (2) are opening down is loaded in seal groove for the sealing of Y type, use as motive sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584343.2U CN204239756U (en) | 2014-10-10 | 2014-10-10 | Main shaft seal floating ring Novel sliding seals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584343.2U CN204239756U (en) | 2014-10-10 | 2014-10-10 | Main shaft seal floating ring Novel sliding seals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239756U true CN204239756U (en) | 2015-04-01 |
Family
ID=52769255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420584343.2U Expired - Fee Related CN204239756U (en) | 2014-10-10 | 2014-10-10 | Main shaft seal floating ring Novel sliding seals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239756U (en) |
-
2014
- 2014-10-10 CN CN201420584343.2U patent/CN204239756U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204186631U (en) | A kind of chemical flow-process pump | |
| CN104564507A (en) | Hydraulic pressure type tidal energy power-generating device | |
| CN201730815U (en) | Non-leakage sealing assembly of reciprocating plunger pump | |
| CN204239756U (en) | Main shaft seal floating ring Novel sliding seals | |
| CN203231060U (en) | Pressure maintaining lubricating device for concrete mixer | |
| CN201739506U (en) | Sealing device for main shaft of hydraulic turbine | |
| CN204345221U (en) | The anti-dry grinding lubricating box of sealing packing for polish rod of sucker | |
| CN201671751U (en) | Mixed flow turbine main-axle combination sealing device | |
| CN202833418U (en) | Hydraulic cylinder piston rod water proof device and engineering machinery | |
| CN204402751U (en) | A kind of tital generator | |
| CN204239330U (en) | The pressure reduction structure in mechanical seal chamber | |
| CN202646035U (en) | Submersible sewage pump equipped with muddy sand prevention device | |
| CN203742880U (en) | Horizontal hydraulic turbine set | |
| CN204591687U (en) | A kind of anticorrosive anti-wear lime pump | |
| CN202100371U (en) | Heart-shaped repair sealing structure of water turbine | |
| CN202182057U (en) | Negative pressure type submersible pump mechanical sealing chamber | |
| CN104500745B (en) | A kind of high abrasion and there is the floating sealing of absorption compensation function | |
| CN204532938U (en) | Power plant's recycle pump structure | |
| CN205136111U (en) | Be applied to grease chamber's integrated configuration of sewage immersible pump | |
| CN204299860U (en) | A kind of internal messing water pump | |
| CN204729335U (en) | A kind of pumping plant Special integrated water pump packing pad | |
| CN204091748U (en) | Ice-making machine water leak preventing structure | |
| CN204784714U (en) | Hydraulic turbine shaft seal moves controlling means | |
| CN202732446U (en) | Novel centrifugal pump packing seal structure | |
| CN202300793U (en) | Sealing tightness adjustment structure for blade pivot shaft of runner of Kaplan turbine |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 |