CN103133695A - Novel main shaft sealing structure of hydraulic generator - Google Patents
Novel main shaft sealing structure of hydraulic generator Download PDFInfo
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- CN103133695A CN103133695A CN2011103918613A CN201110391861A CN103133695A CN 103133695 A CN103133695 A CN 103133695A CN 2011103918613 A CN2011103918613 A CN 2011103918613A CN 201110391861 A CN201110391861 A CN 201110391861A CN 103133695 A CN103133695 A CN 103133695A
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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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Abstract
The invention provides a novel main shaft sealing structure of a hydraulic generator. The novel main shaft sealing structure of the hydraulic generator comprises sealing rotating rings, sealing blocks, sealing rings, overhaul sealing seats, overhaul seals, sealing seats, a work sealing water inlet and an overhaul sealing air inlet. The novel main shaft sealing structure of the hydraulic generator is characterized in that a piston structure of a work seal is changed into a structure of compound sealing blocks, a gap is formed between each sealing block and each sealing seat, and the sealing ring is arranged between each metal seat and each sealing seat and has the function of sealing water between each sealing block and each sealing seat. The novel main shaft sealing structure of the hydraulic generator is convenient to adjust. When pressure water flows into the structure, the sealing blocks are jacked by the action of water pressure, the sealing blocks are tightly pressed on the rotating rings, and the sealing role is played. When the sealing blocks are abraded, the sealing blocks can move upwards under the action of the water pressure, and meanwhile the self compensating role is played. When a unit is stopped and overhauled, compressed air flows into the structure, the compressed air enables the overhaul seals to be tightly pressed on a main shaft, the water is prevented from flowing out from gaps between the seals and the main shaft, and a sealing effect is achieved. The novel main shaft sealing structure of the hydraulic generator is simple and reasonable in structure and good in sealing effect.
Description
Technical field
The invention belongs to Design of Hydrogenerator and make the field, especially relate to a kind of hydraulic turbine generator Novel main axle sealing structure.
Background technique
At present, main shaft-sealing structure for hydroturbines is made of jointly working seal and two kinds of structures of maintenance sealing, and working seal generally adopts the structure of rubber piston, the general structure that adopts air shroud of maintenance sealing.The piston of the rubber piston structure of working seal is in use due to the restriction of the material of rubber own, make the bad adjusting in gap between it and piston body, too loose or too tight cooperation all can produce adverse influence to the operation of unit, too pine does not reach the effect of sealing, too tightly hydraulic pressure can't be depressed it, can't reach equally the effect of sealing.The maintenance sealing structure of air shroud, shroud are the hollow rubber structure, and rubber has spring and spring seat structure to support in the hole, and the complex manufacturing technology of shroud.
Summary of the invention
The purpose of this invention is to provide a kind of simple and reasonable, the hydraulic turbine generator Novel main axle sealing structure of good sealing effect.
technological scheme of the present invention is: a kind of hydraulic turbine generator Novel main axle sealing structure, comprise the sealing change, sealing block, seal ring, the maintenance sealing seat, the maintenance sealing, sealing seat, working seal water inlet and maintenance are sealed into pore, it is characterized in that: be provided with the sealing change outside main shaft, sealing change lower end is provided with sealing seat, be provided with sealing block in sealing seat, sealing block is the compound seal block structure, gapped between sealing block and sealing seat, and be provided with seal ring between sealing block and sealing seat, the sealing seat outside is provided with the working seal water inlet, the working seal water inlet is led in sealing seat, sealing seat is provided with the maintenance sealing seat, develop maintenance sealing seat lower end surface and sealing seat upper-end surface, and be fixedly connected with bolt, in the main shaft outside, be provided with the maintenance sealing between maintenance sealing seat and sealing seat, maintenance is sealed into swallow-tail form, also be provided with maintenance and be sealed into pore outside sealing seat, maintenance is sealed into pore and leads to the maintenance sealing.
Described sealing block is that rubber is fixedly connected with metal seat and is combined into.
The advantage that the present invention has with good effect is: sealing block is that rubber piston is fixedly connected with the mode of combination with metal seat, be convenient to regulate the gap of sealing block and sealing seat, after the sealing block wearing and tearing, under the effect of hydraulic pressure, sealing block can move up, and plays self-compensating effect, and the structure of swallow-tail form is adopted in the maintenance sealing, the maintenance sealing of this kind structure is made simple, is convenient to install.The present invention is simple and reasonable, good sealing effect.
Description of drawings
Fig. 1 is the schematic diagram of invention;
Fig. 2 is the structural representation of sealing block of the present invention.
In figure:
1, sealing change 2, sealing block 201, rubber piston 202, metal seat
3, seal ring 4, sealing seat 5, maintenance sealing seat 6, maintenance sealing
7, working seal water inlet 8, maintenance are sealed into pore 9, main shaft
Embodiment
The below is elaborated to preferred embodiment of the present invention.
as shown in Figure 1, the invention provides a kind of hydraulic turbine generator Novel main axle sealing structure, comprise sealing change 1, sealing block 2, seal ring 3, maintenance sealing seat 5, maintenance sealing 6, sealing seat 4, working seal water inlet 7 and maintenance are sealed into pore 8, main shaft 9 outsides are provided with sealing change 1, sealing change 1 lower end is provided with sealing seat 4, be provided with sealing block 2 in sealing seat 4, sealing block 2 is compound seal piece 2 structures, gapped between sealing block 2 and sealing seat 4, and be provided with seal ring 3 between sealing block 2 and sealing seat 4, sealing seat 4 outsides are provided with working seal water inlet 7, working seal water inlet 7 is led in sealing seat 4, sealing seat 4 is provided with maintenance sealing seat 5, develop maintenance sealing seat 5 lower end surfaces and sealing seat 4 upper-end surfaces, and be fixedly connected with bolt, in main shaft 9 outsides, be provided with maintenance sealing 6 between maintenance sealing seat 5 and sealing seat 4, maintenance sealing 6 is swallow-tail form, also be provided with maintenance in sealing seat 4 outsides and be sealed into pore 8, maintenance is sealed into pore 8 and leads to maintenance sealing 6.Sealing block 2 is combined into for rubber piston 201 is fixedly connected with metal seat 202.
Working procedure of the present invention: when passing into the clean water of pressure by working seal water inlet 7 below sealing block 2, with sealing block 2 jack-up, hold out against between sealing block 2 and sealing change 1, stop water to flow out outside main shaft 9 side direction, reach the effect of sealing.When the rubber piston 201 on sealing block 2 had wearing and tearing, due to the effect of hydraulic pressure, sealing block 2 moved up, and plays self-compensating effect.When shutting down maintenance, be sealed into pore 8 in maintenance and pass into pressurized air, under compressed-air actuated effect, will overhaul sealing 6 and tightly be pressed on main shaft 9, make water to flow out from main shaft 9 and the gap of maintenance sealing 6, reach the effect of sealing.
An above embodiment to invention has been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., within all should still belonging to patent covering scope of the present invention.
Claims (2)
1. hydraulic turbine generator Novel main axle sealing structure, comprise the sealing change, sealing block, seal ring, the maintenance sealing seat, the maintenance sealing, sealing seat, working seal water inlet and maintenance are sealed into pore, it is characterized in that: be provided with the sealing change outside main shaft, sealing change lower end is provided with sealing seat, be provided with sealing block in sealing seat, sealing block is the compound seal block structure, gapped between sealing block and sealing seat, and be provided with seal ring between sealing block and sealing seat, the sealing seat outside is provided with the working seal water inlet, the working seal water inlet is led in sealing seat, sealing seat is provided with the maintenance sealing seat, develop maintenance sealing seat lower end surface and sealing seat upper-end surface, and be fixedly connected with bolt, in the main shaft outside, be provided with the maintenance sealing between maintenance sealing seat and sealing seat, maintenance is sealed into swallow-tail form, also be provided with maintenance and be sealed into pore outside sealing seat, maintenance is sealed into pore and leads to the maintenance sealing.
2. a kind of hydraulic turbine generator Novel main axle sealing structure according to claim 1 is characterized in that: described sealing block is that rubber piston is fixedly connected with metal seat and is combined into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103918613A CN103133695A (en) | 2011-11-29 | 2011-11-29 | Novel main shaft sealing structure of hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103918613A CN103133695A (en) | 2011-11-29 | 2011-11-29 | Novel main shaft sealing structure of hydraulic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103133695A true CN103133695A (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103918613A Pending CN103133695A (en) | 2011-11-29 | 2011-11-29 | Novel main shaft sealing structure of hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103133695A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265904A (en) * | 2014-10-13 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | Main shaft seal structure |
| CN108979933A (en) * | 2018-07-13 | 2018-12-11 | 广州百份百节能科技有限公司 | The permanent magnetism water oil hanging sealing device of hydraulic turbine coefficient of friction is reduced completely |
| CN109483759A (en) * | 2018-12-29 | 2019-03-19 | 温州市泽程机电设备有限公司 | A kind of polyurethane electric heating tank body |
| CN109548400A (en) * | 2017-07-21 | 2019-03-29 | 艾可普罗有限公司 | System is removed using the VOCS of gas distribution plate |
-
2011
- 2011-11-29 CN CN2011103918613A patent/CN103133695A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265904A (en) * | 2014-10-13 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | Main shaft seal structure |
| CN104265904B (en) * | 2014-10-13 | 2017-07-07 | 广东梅雁吉祥水电股份有限公司 | A kind of main shaft sealing construction |
| CN109548400A (en) * | 2017-07-21 | 2019-03-29 | 艾可普罗有限公司 | System is removed using the VOCS of gas distribution plate |
| CN109548400B (en) * | 2017-07-21 | 2021-10-26 | 艾可普罗Hn有限公司 | VOCS removal system utilizing gas distribution plate |
| CN108979933A (en) * | 2018-07-13 | 2018-12-11 | 广州百份百节能科技有限公司 | The permanent magnetism water oil hanging sealing device of hydraulic turbine coefficient of friction is reduced completely |
| CN109483759A (en) * | 2018-12-29 | 2019-03-19 | 温州市泽程机电设备有限公司 | A kind of polyurethane electric heating tank body |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |