CN2157322Y - Seal device for water turbine - Google Patents
Seal device for water turbine Download PDFInfo
- Publication number
- CN2157322Y CN2157322Y CN93213306U CN93213306U CN2157322Y CN 2157322 Y CN2157322 Y CN 2157322Y CN 93213306 U CN93213306 U CN 93213306U CN 93213306 U CN93213306 U CN 93213306U CN 2157322 Y CN2157322 Y CN 2157322Y
- Authority
- CN
- China
- Prior art keywords
- water seal
- water
- annular
- main 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
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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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- Hydraulic Turbines (AREA)
Abstract
The utility model discloses a seal device for a water turbine, and the seal device can prevent the main shaft of the water turbine from axial water leakage, can protect the large bush of the main shaft from damaging, and replace the existing leakproof ring. The utility model comprises elements, such as a housing, a water seal rack which is positioned in the housing and is installed on a main shaft, annular water seals and bushing rings which are respectively and orderly positioned at the both sides of the water seal rack, etc., wherein, a regulating element is installed between the water seal rack and the annular water seal to ensure that the annular water seal is contacted with the end of the bushing ring which is fixed on the housing, and furthermore, the annular water seal which rotates following the main shaft and the water seal rack are combined to form double sealing surfaces. The seal device has the advantages of good sealing effect, easy fabrication, and convenient assembly, disassembly and maintenance, and the pumping times of a stagnant pool can also be reduced.
Description
Described in the utility model is that a kind of hydraulic turbine main shaft that prevents axially leaks, and the big bearing shell of protection main shaft avoids damaging the also water turbine seal arrangement of alternative existing seal ring.
In the prior art; avoid damage for the big bearing shell of protection main shaft and seal ring is installed on main shaft to prevent that the water turbine axis is to seepy question; but existing seal ring is made of a rigid rotation ring; there is not stretchability; in water turbine work; because the friction between seal ring and water turbine cover plate causes mutual damage; lose sealing; axially leak and enter big bearing shell; make the turbine deterioration of lubricant, lubrication falls sharply, big bearing shell increase in temperature; cause tile kilning or Bearing score frequently to take place, influenced the proper functioning of water turbine.And it is serious to leak, and water displacement is big, and the plash water accumulating volume is increased, thereby increases the number of times that draws water of suction pump, consumes the life-span that big energy also reduces suction pump.
The purpose of this utility model is to provide a kind of above-mentioned defective that overcomes, the water turbine seal arrangement that anti-water-leaking property can be good.
The technical solution of the utility model is: seal arrangement comprises the housing of being made up of water turbine cover plate and water seal box, and the sealing device is positioned at a water seal frame of housing, two annular water seals, two parts such as grommet in addition in addition.The water seal frame body is an annular solid that is enclosed within on the main shaft and is solidly installed with it, annular solid is positioned at housing shaft to the middle part, the external diameter of this annular solid is slightly less than the housing internal diameter, extend one section tubular suspended wall parallel at the annular solid two ends respectively by its outer radius with the outerface of spindle, tubular suspended wall outer end is equidistant several draw-in grooves that has axially, the axial length overall of water seal frame approximates the shell axial length, two annular water seals lay respectively at water seal frame body both sides and are enclosed within on the main shaft, excircle is provided with several latches that matches constantly with water seal frame draw-in groove on it, when annular water seal and water seal frame combined together the time, be a close disc of envelope on the main axis cross section projection plane, annular water seal maximum outside diameter is slightly larger than the external diameter of water seal frame.For reducing the wearing and tearing of cover plate and water seal box, ad hoc grommet, two grommets lay respectively at the two annular water seals outside and kink on main shaft, two grommet end faces are solidly installed with the end face inwall of cover plate inwall and water seal box respectively, grommet and annular water seal contact surface are mutually kept in touch constantly, to guarantee its sealing, for a certain amount of water is remained in the housing, with lubricate, should keep certain distance between annular water seal and water seal frame body end face, be equipped with on the water seal frame body constantly and the contacted axial adjustment parts of annular water seal end face, the axial adjustment parts are adjusting screw or spring, like this, and when grommet weares and teares gradually, by adjust regulating parts, can guarantee that just grommet and while that contacts between annular water seal end face also guarantee to leave certain distance between water seal frame and annular water seal.When main shaft rotates, drive the water seal frame and rotate, the water seal frame drives annular water seal by draw-in groove and latch again and rotates, and can avoid the wearing and tearing to main shaft like this.
The water turbine seal arrangement that the utility model provides, adopt grommet, can reduce the wearing and tearing of water turbine cover plate and water seal box, design double-deck water seal, design cooperatively interacts in water seal frame and annular water seal draw-in groove and latch adopt the axial adjustment parts simultaneously, make it good sealing effect, the axial seepy question of main shaft is resolved, and prevents the frequent wear of big bearing shell, and the plash number of times that draws water is significantly reduced.
The utility model has following accompanying drawing.
Fig. 1 is a sealing device overall structure schematic representation.
Fig. 2 is annular sealing structure for water schematic representation.
Fig. 3 is a water seal shelf structure plan view.
Fig. 4 is the side view of Fig. 3.
As shown, water turbine cover plate (1) and water seal box (2) have been formed the housing of seal arrangement, the circumferential body that is packed in the water seal frame (3) on the main shaft (6) is positioned at axially middle part of housing, tubular suspended wall outer end on the water seal frame (3) is circumferentially equidistant to have four draw-in grooves, annular water seal (4) excircle that is positioned at water seal frame (3) both sides is provided with four latches that match constantly with water seal frame draw-in groove, (5) one of two grommets and cover plate (1) inwall are solidly installed, end face inwall with water seal box (2) is solidly installed, be equipped with on water seal frame (3) main body constantly and annular water seal (4) the contacted axial adjustment parts of end face (7), be adjusting screw in this embodiment, installation quantity and the position of regulating parts should make annular water seal (4) end face stress equalization.The flexible gasket (8) and the rigid gasket (9) that are enclosed within on the main shaft (6) are installed between annular water seal (4) and axial adjustment parts (7) successively, the effect of flexible gasket (8) is to make the water shutoff of annular water seal (4) better, the effect of rigid gasket (9) is stressed irregular between solution flexible gasket (8) and the adjusting parts (7), destroys the problem of the water shutoff of seal arrangement.The annular water seal (4) preferably make by rubber material, make its stretchability strong, and reduce and grommet (5) between attrition.
Claims (4)
1; a kind of hydraulic turbine main shaft that prevents axially leaks; the big bearing shell of protection main shaft avoids damaging the also water turbine seal arrangement of alternative existing seal ring; comprise the housing of forming by water turbine cover plate (1) and water seal box (2); it is characterized in that: the sealing device is positioned at a water seal frame (3) of housing in addition; two annular water seals (4); two grommet parts such as (5); water ring frame (3) main body is one to be enclosed within the annular solid that main shaft (6) is gone up and is solidly installed with it; annular solid is positioned at housing shaft to the middle part; the external diameter of this annular solid is slightly less than the housing internal diameter; at the annular solid two ends by its outer radius extend respectively one section with the parallel tubular suspended wall of main shaft (6) outer surface; tubular suspended wall outer end is equidistant several draw-in grooves that has circumferentially; water seal frame (3) axially length overall approximates the shell axial length; two annular water seals (4) lay respectively at water seal frame (3) main body both sides and are enclosed within on the main shaft (6); its excircle is provided with several latches that cooperates constantly with water seal frame (3) draw-in groove; when annular water seal (4) and water seal frame (3) when combining; it on the transversal projection plane of main shaft a close disc of envelope; annular water seal (4) maximum outside diameter is slightly larger than the external diameter of water seal frame (3); two grommets (5) lay respectively at two annular water seals (4) outsides and kink on main shaft (6); one end face of two grommets (5) is solidly installed with the end face inwall of cover plate (1) and water seal box (2) respectively; grommet (5) and annular water seal contact surface are mutually kept in touch constantly; should keep certain distance between annular water seal (4) and water seal frame (3) main body end face, be equipped with on water seal frame (3) main body constantly and annular water seal (4) the contacted axial adjustment parts of end face (7).
2, seal arrangement as claimed in claim 1 is characterized in that: the flexible gasket (8) and the rigid gasket (9) that are enclosed within on the main shaft (6) are installed between annular water seal (4) and axial adjustment parts (7) successively.
3, seal arrangement as claimed in claim 1 or 2 is characterized in that: axial adjustment parts (7) are adjusting screw or spring.
4, seal arrangement as claimed in claim 1 is characterized in that: annular water seal (4) is preferably made by rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93213306U CN2157322Y (en) | 1993-05-12 | 1993-05-12 | Seal device for water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93213306U CN2157322Y (en) | 1993-05-12 | 1993-05-12 | Seal device for water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2157322Y true CN2157322Y (en) | 1994-02-23 |
Family
ID=33794418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93213306U Expired - Fee Related CN2157322Y (en) | 1993-05-12 | 1993-05-12 | Seal device for water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2157322Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075599C (en) * | 1996-04-29 | 2001-11-28 | 克瓦那涡轮机股份公司 | Sealing system for a hydraulic machine |
| CN100451329C (en) * | 2007-07-24 | 2009-01-14 | 天津市天发重型水电设备制造有限公司 | Seal of principal axis of water turbine in type of stay column |
-
1993
- 1993-05-12 CN CN93213306U patent/CN2157322Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075599C (en) * | 1996-04-29 | 2001-11-28 | 克瓦那涡轮机股份公司 | Sealing system for a hydraulic machine |
| CN100451329C (en) * | 2007-07-24 | 2009-01-14 | 天津市天发重型水电设备制造有限公司 | Seal of principal axis of water turbine in type of stay column |
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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 |