CN102563085A - Water-turbine flat-plate sealing device convenient to maintain - Google Patents
Water-turbine flat-plate sealing device convenient to maintain Download PDFInfo
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- CN102563085A CN102563085A CN2012100183978A CN201210018397A CN102563085A CN 102563085 A CN102563085 A CN 102563085A CN 2012100183978 A CN2012100183978 A CN 2012100183978A CN 201210018397 A CN201210018397 A CN 201210018397A CN 102563085 A CN102563085 A CN 102563085A
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- flat plate
- rubber flat
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- rubber
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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 invention relates to a water-turbine flat-plate sealing device convenient to maintain. The water-turbine flat-plate sealing device can effectively solve the problem that the existing flat-plate sealing device is not easy to maintain and rubber flat plates are easy to damage during replacement. The technical scheme is as follows: the water-turbine flat-plate sealing device comprises a supporting plate, a first rubber flat plate, a second rubber flat plate, a rotating ring and a sealing box, wherein the supporting plate is provided with the first rubber flat plate and the second rubber flat plate in sequence; the sealing box and the rotating ring are arranged on the second rubber flat plate; the rotating ring is arranged in the sealing box; the supporting plate, the rotating ring and the sealing box are of split structures respectively, and the split structure consists of a left flap body and a right flap body; the left flap body and the right flap body of the supporting plate are staggered and jointed together in a step manner; and the first rubber flat plate and the second rubber flat plate are respectively in a ring shape with shearing seam at one side along the radial direction. The water-turbine flat-plate sealing device has the advantages that the maintenance is convenient, the damaged rubber flat plates are easy to replace, the rubber flat plates can be maintained and replaced under the condition without disassembling other parts of a water turbine, and the operating effect is reliable.
Description
Technical field
The present invention relates to hydraulic turbine main shaft sealing device, particularly the dull and stereotyped seal arrangement of a kind of water turbine of easy access.
Background technique
The dull and stereotyped sealing configuration of water turbine is simple, technological requirement is not high, stagnant water effect is desirable, is widely used on all kinds of water turbine of middle low water head.
Present existing dull and stereotyped sealing mainly is made up of rubber seal flat board, swivel becket, supporting plate, seal case; The general all or part of integrated type of making of these sealed members; Sealing need be enclosed within on the main shaft when installing in advance, and main shaft seal is installed after parts such as rotary wheel of water turbine, top cover install again.The sealed member of domain formula is that the maintenance of seal arrangement brings very burden, when the rubber flat plate of rapid wear need be changed, must the relevant parts of water turbine be disassembled, and vacating space could be enclosed within the rubber flat plate of the domain on the hydraulic turbine main shaft.Therefore, the maintenance of the dull and stereotyped sealing of domain formula takes time and effort, and easily worn part is changed especially very difficulty.
Summary of the invention
To above-mentioned situation, for overcoming the existing technology defective, the present invention's purpose just provides a kind of dull and stereotyped seal arrangement of water turbine of easy access, can effectively solve the problem that existing dull and stereotyped sealing is difficult for maintenance and changes the rubber flat plate of rapid wear.
Technical solution scheme of the present invention is; Comprise supporting plate, first rubber flat plate, second rubber flat plate, swivel becket and sealed case; First rubber flat plate and second rubber flat plate are housed on the supporting plate successively; Sealed case and swivel becket are arranged on second rubber flat plate, and swivel becket places in the sealed case, supporting plate, swivel becket and the sealed case split structure that left lobe body and right lobe body constitute of all serving as reasons; The left lobe body of supporting plate and right lobe body are that step type is staggered to be bonded together, and first rubber flat plate and second rubber flat plate are radially has the ring of shearing seam in a side.
Easy access of the present invention, the easy rubber flat plate that damages of changing can under the situation of not dismantling other parts of water turbine, overhaul, change rubber flat plate, and operational effect are reliable.
Description of drawings
Fig. 1 is a structure sectional view of the present invention.
Fig. 2 is the structural perspective of supporting plate of the present invention.
Fig. 3 is the structural perspective of the present invention's first rubber flat plate.
Fig. 4 is the structural perspective of the present invention's second rubber flat plate.
Fig. 5 is the horizontal sectional view of swivel becket of the present invention.
Fig. 6 is the horizontal sectional view of sealed case of the present invention.
Embodiment
Elaborate below in conjunction with the accompanying drawing specific embodiments of the invention.
Provide by Fig. 1-Fig. 6; The present invention includes supporting plate, first rubber flat plate, second rubber flat plate, swivel becket and sealed case; First rubber flat plate 2 and second rubber flat plate 3 are housed on the supporting plate 1 successively; Sealed case 6 and swivel becket 4 are arranged on second rubber flat plate, and swivel becket places in the sealed case, supporting plate, swivel becket and the sealed case split structure that left lobe body and right lobe body constitute of all serving as reasons; The left lobe body of supporting plate and right lobe body are that step type is staggered to be bonded together, and first rubber flat plate and second rubber flat plate are radially has the ring of shearing seam 10 in a side.
The left lobe body of described swivel becket 4 and right lobe body tighten together closing through first bolt (claiming the swivel becket bolt again) 5; The left lobe body of described sealed case 6 and right lobe body put together on together through second bolt (claiming the sealed case bolt again) 7; Described sealed case 6, first rubber flat plate 2, second rubber flat plate 3 and supporting plate 1 are fixed together through screw 8; The shearing seam 10 of described first rubber flat plate 2 and second rubber flat plate 3 staggers each other and is fixed together; Not only be convenient to change; Also prevent to leak; Increased the rigidity of first rubber flat plate and second rubber flat plate simultaneously, made first rubber flat plate and second rubber flat plate can be used for higher head or higher working pressure.
Use working condition of the present invention: the left lobe body of swivel becket 4 and right lobe body tighten together closing through first bolt 5 and hydraulic turbine main shaft 11; The left lobe body of sealed case 6 and right lobe body put together on together through second bolt 7; On water-turbine top cover 9, supporting plate 1 holds up first and second rubber flat plate through screw for sealed case 6, first rubber flat plate 2, second rubber flat plate 3 and supporting plate 1, has certain pressure from leaking of coming of rotary wheel of water turbine seal ring; Pressure water action is below resilient first and second rubber flat plate; Make second rubber flat plate be close to the lower end surface of swivel becket 4, form Sealing Surface, play the leak-stopping effect; Leak from the waste pipe discharge of sealed case 6 from the major part that Sealing Surface spills; Leaking of few part flows to outside the sealing through the gap, inclined-plane of swivel becket 4 upper ends and sealed case 6, and the present invention is the combined labyrinth and carbon gland that a kind of dull and stereotyped sealing and slit seal are formed, and has the better seal effect.
Can know that by last structure the present invention all makes the split structure to supporting plate, swivel becket and sealed case, during installation, be combined into full circle with the screw handle.First and second rubber flat plate was domain formula structure originally; But in order under the situation of not dismantling turbine shaft, to install; Cut off a side of two same plantation rubber ring flat-plates; Be stacked two rubber plates again after being enclosed within on the main shaft, shear seam during closed assembly and stagger, and with bonding first and second the two-layer rubber flat plate of 502 glue.For preventing leaking with the seam place of split structure member, all smear liquid sealant with the seam place.
Characteristics of the present invention are easy accesses and change the easily damaged parts rubber flat plate, and supporting plate 1 be the distinguish annulus, and is as shown in Figure 2, about two semicircular ring plate interface places be step type and overlap, being coated with sealer in lap-joint during installation can prevent to leak from seam crossing fully.Main first and second rubber flat plate of Sealing also is circular; Like Fig. 3 and shown in Figure 4, every rubber flat plate annulus is all radially cut off from a side, so that be enclosed within on the axle easily; Two flat boards closed assembly up and down during installation; It shears the seam several angle that staggers, and with tackiness agents such as 502, prevents to leak from seam.The swivel becket that cooperates with second rubber flat plate 4 shows like Fig. 5, is two splitted structures also, during installation, is fastened on the hydraulic turbine main shaft closing with bolt 5.Equally, split sealed case 6 shows like Fig. 1 and Fig. 6, is put together on together by bolt 7 during installation, can be coated with sealer on the mating face or add sealing gasket for preventing to leak.
Positive contribution of the present invention is:
1, supporting plate, swivel becket and sealed case are the split structure; First and second rubber flat plate has shearing seam radially; Can under the situation of not dismantling water turbine any parts except that main shaft seal, realize the maintenance of sealing and change easily worn part, for the user provides very big convenience;
2, the step type faying surface that supporting plate had is convenient to install and is prevented that seam from leaking;
3, the dull and stereotyped side of double-layer rubber is cut off and the bonding closed assembly of the angle that staggers, and not only is convenient to change, and also can prevent to leak, and has increased the rigidity of first and second rubber flat plate simultaneously, makes dull and stereotyped sealing can be used for higher head or higher working pressure.
Embodiment:
The water turbine of certain chemical plant industrial circulating water power generating by remain energy integrated system has been installed conventional formula lithographic plate sealing, and the working head of water turbine is 25m; But the working pressure of water turbine is 60～70m water column; Because working pressure is high, make former dull and stereotyped sealing often damage, and former seal arrangement adopt whole circular rubber flat plate; To dismantle rotary wheel of water turbine during replacing, extract turbine shaft out, very trouble.The dull and stereotyped sealing of just maintenance type of employing the present invention can be changed rubber flat plate and only use half an hour not dismantling main spindle overhauling sealing under any parts situation of water turbine, and the water turbine of double-deck stacked rubber flat plate adaptation high workload pressure, and sealing effect is fine.
Claims (5)
1. the dull and stereotyped seal arrangement of the water turbine of an easy access; Comprise supporting plate, first rubber flat plate, second rubber flat plate, swivel becket and sealed case; It is characterized in that, first rubber flat plate (2) and second rubber flat plate (3) are housed on the supporting plate (1) successively, sealed case (6) and swivel becket (4) are arranged on second rubber flat plate; Swivel becket places in the sealed case; Supporting plate, swivel becket and the sealed case split structure that left lobe body and right lobe body constitute of all serving as reasons, the left lobe body of supporting plate and right lobe body are that step type is staggered to be bonded together, and first rubber flat plate and second rubber flat plate are radially has the ring of shearing seam (10) in a side.
2. the dull and stereotyped seal arrangement of the water turbine of easy access according to claim 1 is characterized in that the left lobe body of described swivel becket (4) and right lobe body tighten together closing through first bolt (5).
3. the dull and stereotyped seal arrangement of the water turbine of easy access according to claim 1 is characterized in that the left lobe body of described sealed case (6) and right lobe body put together on together through second bolt (7).
4. the dull and stereotyped seal arrangement of the water turbine of easy access according to claim 1 is characterized in that described sealed case (6), first rubber flat plate (2), second rubber flat plate (3) and supporting plate (1) are fixed together through screw (8).
5. the dull and stereotyped seal arrangement of the water turbine of easy access according to claim 1 is characterized in that, the shearing seam (10) of described first rubber flat plate (2) and second rubber flat plate (3) staggers each other and is fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100183978A CN102563085A (en) | 2012-01-20 | 2012-01-20 | Water-turbine flat-plate sealing device convenient to maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100183978A CN102563085A (en) | 2012-01-20 | 2012-01-20 | Water-turbine flat-plate sealing device convenient to maintain |
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| Publication Number | Publication Date |
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| CN102563085A true CN102563085A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100183978A Pending CN102563085A (en) | 2012-01-20 | 2012-01-20 | Water-turbine flat-plate sealing device convenient to maintain |
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| CN (1) | CN102563085A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278484A (en) * | 2021-12-28 | 2022-04-05 | 江苏航天水力设备有限公司 | High-power generation and maintenance-convenient efficient stable water turbine |
| CN114856885A (en) * | 2022-06-20 | 2022-08-05 | 南方电网调峰调频发电有限公司检修试验分公司 | Step type sealing structure and water turbine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2174596Y (en) * | 1993-09-07 | 1994-08-17 | 钟文才 | Rubber flat plate sealing structure for water turbine |
| CN2422490Y (en) * | 2000-05-29 | 2001-03-07 | 昆明电机有限责任公司 | Sealing device of mainshaft for horizontal water turbine |
| CN201258816Y (en) * | 2008-08-15 | 2009-06-17 | 哈尔滨电机厂有限责任公司 | Principal axis sealing device for end-face water pressure type hydroturbine |
| US20100201074A1 (en) * | 2009-01-12 | 2010-08-12 | Haynes George P | Gas seal for aerospace engines and the like |
| CN201891548U (en) * | 2010-12-15 | 2011-07-06 | 兰州兰电电机有限公司 | Operation sealing device of water turbine spindle |
| CN202441891U (en) * | 2012-01-20 | 2012-09-19 | 华北水利水电学院 | Water turbine plate seal device convenient to repair |
-
2012
- 2012-01-20 CN CN2012100183978A patent/CN102563085A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2174596Y (en) * | 1993-09-07 | 1994-08-17 | 钟文才 | Rubber flat plate sealing structure for water turbine |
| CN2422490Y (en) * | 2000-05-29 | 2001-03-07 | 昆明电机有限责任公司 | Sealing device of mainshaft for horizontal water turbine |
| CN201258816Y (en) * | 2008-08-15 | 2009-06-17 | 哈尔滨电机厂有限责任公司 | Principal axis sealing device for end-face water pressure type hydroturbine |
| US20100201074A1 (en) * | 2009-01-12 | 2010-08-12 | Haynes George P | Gas seal for aerospace engines and the like |
| CN201891548U (en) * | 2010-12-15 | 2011-07-06 | 兰州兰电电机有限公司 | Operation sealing device of water turbine spindle |
| CN202441891U (en) * | 2012-01-20 | 2012-09-19 | 华北水利水电学院 | Water turbine plate seal device convenient to repair |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114278484A (en) * | 2021-12-28 | 2022-04-05 | 江苏航天水力设备有限公司 | High-power generation and maintenance-convenient efficient stable water turbine |
| CN114278484B (en) * | 2021-12-28 | 2022-11-15 | 江苏航天水力设备有限公司 | High-power generation and maintenance-convenient efficient stable water turbine |
| CN114856885A (en) * | 2022-06-20 | 2022-08-05 | 南方电网调峰调频发电有限公司检修试验分公司 | Step type sealing structure and water turbine |
| CN114856885B (en) * | 2022-06-20 | 2024-03-29 | 南方电网调峰调频发电有限公司检修试验分公司 | Step type sealing structure and water turbine |
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Application publication date: 20120711 |