CN201874726U - Main shaft sealing device of water turbine - Google Patents
Main shaft sealing device of water turbine Download PDFInfo
- Publication number
- CN201874726U CN201874726U CN2010206563248U CN201020656324U CN201874726U CN 201874726 U CN201874726 U CN 201874726U CN 2010206563248 U CN2010206563248 U CN 2010206563248U CN 201020656324 U CN201020656324 U CN 201020656324U CN 201874726 U CN201874726 U CN 201874726U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- sealing
- seal closure
- sealing seat
- sealing device
- 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
Images
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)
- Hydraulic Turbines (AREA)
Abstract
The utility model provides a main shaft sealing device of a water turbine, which comprises a main shaft sheath, a sealing seat, a packing and a gland bush, wherein the main shaft sheath is sleeved on a main shaft; one end of the sealing seat is sleeved on the periphery of the main shaft sheath; the other end of the sealing seat is fixed on a front cover; the packing is sealed in a cavity formed by the sealing seat and the main shaft sheath; the main shaft sealing device further comprises a sealing hood and a water throwing ring; one end of the sealing hood is sleeved on the main shaft; the other end of the sealing hood is fixed on the sealing seat; the water throwing ring is fixed on the main shaft and is arranged inside the sealing hood; and the sealing hood is radially connected with a water drain pipe. The main sealing device has a favorable sealing effect; and the water leakage due to packing wear can be effectively prevented.
Description
[technical field]
The utility model relates to a kind of hydraulic turbine main shaft sealing device, particularly a kind of hydraulic turbine main shaft packing_seal device.
[background technique]
In the hydraulic turbine main shaft sealing pattern of numerous kinds, it is exactly packing_seal that a kind of sealing that is widely used in the water turbine design is arranged, and this is a kind of traditional, time-honored seal type.This sealing is used being lower than under 100 meters the head usually, especially is widely used on horizontal mixed-flow unit, have simple in structure, easy to adjust, maintenance easily, characteristics such as long service life.Along with packing_seal use extensively, it also exposes many problems gradually in the actual motion of power station, on the higher unit of head, because unit moves for a long time, usually cause packing to be worn, after packing is worn, in time do not compressing under the situation of gland, still having part water from seal arrangement, to leak out after perhaps gland compresses.This situation gently then influences power station factory building cleaning, destroys attractive in appearancely, heavy then leak water and enter bearing, and generation sensing water content mixed in oil phenomenon will cause watt temperature of bearing shell too high, finally cause the tile kilning phenomenon, have a strong impact on the operation safely and steadly in power station.
[model utility content]
The technical problems to be solved in the utility model is to provide a kind of main shaft sealing device of water turbine, and its seal arrangement effect is good, can overcome packing again and occur under the abrasion condition, the defective of leaking.
The utility model is achieved in that a kind of main shaft sealing device of water turbine, it comprises the main shaft sheath, sealing seat, packing, gland, described main shaft sheath is enclosed within on the main shaft, described sealing seat one end is sheathed on the periphery of main shaft sheath, the other end is fixed on the protecgulum, described packing by a gland seal in the cavity that described sealing seat and main shaft sheath surround, described main shaft sealing device also comprises seal closure, slinger ring, described seal closure one end is sheathed on the main shaft, and the other end is fixed on the sealing seat, and described slinger ring is fixed on the main shaft, and being arranged at seal closure inside, described seal closure radially connects a waste pipe.
Further, described protecgulum, sealing seat, seal closure are by a bolt together.
Further, described main shaft sheath, sealing seat, gland, seal closure, slinger ring are branch half hitch structure.
Further, described slinger ring is fixed in the inboard of the sheathed end of seal closure on main shaft.
Advantage of the present utility model is:
1. seal closure of the present utility model is accepted next leakage water to packing_seal, and will reveal water and directly arrange the group of disembarking by described waste pipe.
2. slinger ring of the present utility model utilizes the centrifugal force that self rotates generation that current are blocked, and does not allow current spill from the gap between seal closure and the main shaft, thereby has avoided revealing once more.
3. main shaft sheath of the present utility model, sealing seat, gland, seal closure, slinger ring are branch half hitch structure, are convenient to safeguard, install and remove.
[description of drawings]
In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is a structural representation of the present utility model.
[embodiment]
See also shown in Figure 1ly, embodiment of the present utility model is described in detail.
The utility model comprises main shaft sheath 1, sealing seat 2, packing 3, gland 4, seal closure 5, slinger ring 6.Described main shaft sheath 1 encloses and is enclosed within on the main shaft 7, described sealing seat 2 one ends are sheathed on the periphery of main shaft sheath 1, the other end is fixed on the protecgulum 8, described packing 3 is sealed in the cavity that described sealing seat 2 and main shaft 7 sheaths surround by gland 4, described seal closure 5 one ends are sheathed on the main shaft 7, and the other end and sealing seat 2 are fixed together, and described slinger ring 6 is fixed on the main shaft 7, and being arranged at seal closure 5 inside, described seal closure 5 radially is provided with a waste pipe 9.
The utility model is enclosed within main shaft sheath 1 on the main shaft 7, has avoided main shaft 7 directly to contact with packing 3, has reduced the wearing and tearing of main shaft 7.Because described packing 3 is the sealing fallible component, so that its material has is wear-resisting, heat-resisting, high mechanical properties, self-lubricating property is good, friction factor is low characteristics, to guarantee sufficiently long working life.Described protecgulum 8, sealing seat 2, seal closure 5 pass through a bolt together, and described seal closure 5 is used for accepting next leakage water to packing 3 sealings, and will reveal water and directly arrange the groups of disembarking by described waste pipe 9.Described slinger ring 6 is arranged at the inboard of being fixed in the sheathed end of seal closure 5 on main shaft 7, be screwed on main shaft 7, along with main shaft 7 rotates together, it utilizes the centrifugal force that self rotates generation that current are blocked, do not allow current spill from the gap between seal closure 5 and the main shaft 7, but finally discharge, thereby avoided revealing once more by waste pipe 9.Described main shaft sheath 1, sealing seat 2, gland 4, seal closure 5, slinger ring 6 are branch half hitch structure, so that safeguard, install and remove.
Compare with traditional packing_seal, the utility model has overcome the defective of leaking significantly, can guarantee to greatest extent to occur under the situation of wearing and tearing at packing 3, and the water that spills is discharged from seal closure 5, and can not leak out once more, jeopardizes the power station security of operation.By after the contrast operation in power station, practice shows that this improved seal arrangement effect is good, firmly gets user's favorable comment, has very high use value.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented according to this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (4)
1. the main shaft sealing device of a water turbine, it comprises the main shaft sheath, sealing seat, packing, gland, described main shaft sheath is enclosed within on the main shaft, described sealing seat one end is sheathed on the periphery of main shaft sheath, the other end is fixed on the protecgulum, described packing by a gland seal in the cavity that described sealing seat and main shaft sheath surround, it is characterized in that: described main shaft sealing device also comprises seal closure, slinger ring, described seal closure one end is sheathed on the main shaft, and the other end is fixed on the sealing seat, and described slinger ring is fixed on the main shaft, and being arranged at seal closure inside, described seal closure radially connects a waste pipe.
2. the main shaft sealing device of a kind of water turbine according to claim 1 is characterized in that: described protecgulum, sealing seat, seal closure are by a bolt together.
3. the main shaft sealing device of a kind of water turbine according to claim 1, it is characterized in that: described main shaft sheath, sealing seat, gland, seal closure, slinger ring are branch half hitch structure.
4. the main shaft sealing device of a kind of water turbine according to claim 1, it is characterized in that: described slinger ring is fixed in the inboard of the sheathed end of seal closure on main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206563248U CN201874726U (en) | 2010-12-10 | 2010-12-10 | Main shaft sealing device of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206563248U CN201874726U (en) | 2010-12-10 | 2010-12-10 | Main shaft sealing device of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874726U true CN201874726U (en) | 2011-06-22 |
Family
ID=44162646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206563248U Expired - Fee Related CN201874726U (en) | 2010-12-10 | 2010-12-10 | Main shaft sealing device of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874726U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518806A (en) * | 2011-12-27 | 2012-06-27 | 重庆水轮机厂有限责任公司 | Spindle sealing device of axial flow hydraulic turbine |
| CN103711909A (en) * | 2013-12-17 | 2014-04-09 | 南通密炼捏合机械有限公司 | Horizontal type shaft head sealing structure |
| CN104132139A (en) * | 2013-11-22 | 2014-11-05 | 成都科创佳思科技有限公司 | Main shaft sealing structure for water turbine |
| CN104358653A (en) * | 2014-11-27 | 2015-02-18 | 天津市天发重型水电设备制造有限公司 | Novel bearing and main shaft combined sealing structure |
| CN106439027A (en) * | 2016-11-25 | 2017-02-22 | 国家电网公司 | Sealing device for guide vane sleeve of water turbine |
| CN110957860A (en) * | 2019-11-27 | 2020-04-03 | 上海电气电站设备有限公司 | Double-water internal cooling motor rotor water inlet dynamic and static sealing device |
| CN111623120A (en) * | 2020-06-29 | 2020-09-04 | 陕西陕煤韩城矿业有限公司 | Feeding pump sealing device of filter pressing system of coal mine coal preparation plant |
-
2010
- 2010-12-10 CN CN2010206563248U patent/CN201874726U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518806A (en) * | 2011-12-27 | 2012-06-27 | 重庆水轮机厂有限责任公司 | Spindle sealing device of axial flow hydraulic turbine |
| CN104132139A (en) * | 2013-11-22 | 2014-11-05 | 成都科创佳思科技有限公司 | Main shaft sealing structure for water turbine |
| CN103711909A (en) * | 2013-12-17 | 2014-04-09 | 南通密炼捏合机械有限公司 | Horizontal type shaft head sealing structure |
| CN104358653A (en) * | 2014-11-27 | 2015-02-18 | 天津市天发重型水电设备制造有限公司 | Novel bearing and main shaft combined sealing structure |
| CN106439027A (en) * | 2016-11-25 | 2017-02-22 | 国家电网公司 | Sealing device for guide vane sleeve of water turbine |
| CN110957860A (en) * | 2019-11-27 | 2020-04-03 | 上海电气电站设备有限公司 | Double-water internal cooling motor rotor water inlet dynamic and static sealing device |
| CN111623120A (en) * | 2020-06-29 | 2020-09-04 | 陕西陕煤韩城矿业有限公司 | Feeding pump sealing device of filter pressing system of coal mine coal preparation plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201874726U (en) | Main shaft sealing device of water turbine | |
| CN105464882A (en) | Main shaft seal device and axial flow turbine with same | |
| CN203627294U (en) | Double-end-face mechanical sealing structure for slurry pump | |
| CN205078456U (en) | Two shell sediment stuff pumps | |
| CN202326375U (en) | Double-face mechanical sealing structure | |
| CN201310037Y (en) | Waterproof oil seal structure of washing device | |
| CN201874723U (en) | Main shaft-sealing structure for hydroturbines | |
| CN209909003U (en) | Improved hard alloy sliding bearing | |
| CN204783422U (en) | Horizontal water turbine's pump plate structure | |
| CN204226649U (en) | A kind of water turbine apex combustion seal | |
| CN202370731U (en) | Hydro-extracting ring and filler combined type sealing structure of horizontal machine set of hydropower station | |
| CN202082291U (en) | End cover of bearing box of fan | |
| CN104847570A (en) | Multistage water sealing device for water turbine | |
| CN205330867U (en) | Shaft seal device and have device's axial flow turbine | |
| CN204610124U (en) | The multistage sealing water device of water turbine | |
| CN205744256U (en) | Environment-friendly type Kaplan turbine water lubrication runner | |
| CN201372882Y (en) | Novel hydraulic turbine shaft seal assembly adopting 'non-contact seal plus rotary pump unit' | |
| CN209507654U (en) | A kind of shallow air-floatation center rotary sealing appts | |
| CN201671751U (en) | Mixed flow turbine main-axle combination sealing device | |
| CN202091093U (en) | Improved water turbine main shaft sealing device | |
| CN201087284Y (en) | Sealing dustproof structure of washing machine speed reduction clutch | |
| CN201582033U (en) | Axial gapless sealing device | |
| CN205207037U (en) | Split type hydraulic turbine seal ring | |
| CN205388148U (en) | Hydraulic turbine main shaft self -lubricating mechanical seal | |
| CN204829957U (en) | Guide pulley in bearing is external |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131210 |