CN203717218U - Retaining ring structure mounted on main shaft seal of water turbine - Google Patents
Retaining ring structure mounted on main shaft seal of water turbine Download PDFInfo
- Publication number
- CN203717218U CN203717218U CN201320660334.2U CN201320660334U CN203717218U CN 203717218 U CN203717218 U CN 203717218U CN 201320660334 U CN201320660334 U CN 201320660334U CN 203717218 U CN203717218 U CN 203717218U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- retaining ring
- water
- water retaining
- hydraulic turbine
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000007789 sealing Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 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 utility model relates to a retaining ring structure mounted on a main shaft seal of a water turbine. A retaining ring around a main shaft is additionally mounted between a bottom plate of an oil guide basin of a turbine guide bearing and an upper cover of a water collecting ring of the main shaft seal and enough gaps exist on and under the retaining ring, and therefore enough air can enter the oil basin after mounting. Meanwhile, after the temporary retaining ring is mounted, when the main shaft rotates, the main shaft cannot cut or rub other fixed parts. The retaining ring can effectively prevent leaked water of the main shaft seal form directly splashing up along the main shaft of the water turbine, the water flow direction is changed, and therefore the leaked water is prevented from entering the oil guide basin and even an oil tank along the gaps between the retaining ring in the water turbine bearing and the main shaft of the water turbine. The safe operation of a steam turbine is ensured. The retaining ring structure has the advantages of simple structure, convenience in mounting, low cost and obvious effect, and has been promoted and applied on other sets.
Description
Technical field
The utility model belongs to electric power factory equipment maintenance erecting device scope, the water retaining ring structure of particularly installing on a kind of hydraulic turbine main shaft sealing.Because fretting wear causes main shaft seal hydraulic performance decline specifically during for the long-time running of pumped storage unit, generation is leaked and is entered water pilot bearing system, affect the safe operation of unit, the permanent water retaining ring of utilize installing thoroughly solves main shaft seal and leaks and enter water pilot bearing system problem.
Background technique
Hydraulic turbine main shaft sealing is an important protection of water turbine; it be contained in water pilot bearing below, to prevent that press water from, from leaking between main shaft and top cover (or support cover) in machine hole, flooding the equipment such as water pilot bearing; affect the normal work of water turbine, affect the safe operation of unit.Its sealing performance is good and bad, is directly connected to the inherently safe of unit safety economical operation and Power Plant.By the job specification of hydraulic turbine main shaft sealing, can be divided into working seal and maintenance sealing.This research is mainly for working seal.Water turbine is in During Process of Long-term Operation, moisture, dust and solid particle polluter are because various complicated reasons inevitably can be sneaked in oil, accelerate oily oxidation, and encouraged the formation of foam, incrustation and greasy filth, cause oily serious emulsification, cause the profit not easily separated, reduced lubricated, wear-resistant, the heat radiation, dispersion of oil, the performance such as cooling.Cause corrosion and the wearing and tearing of metallic element in water turbine simultaneously, affect the safe operation of steam turbine.In order to address the above problem, designed this special purpose device of water retaining ring, it is simple in structure, easy for installation, and cost is not high, and successful is applicable to the installing and using of unit of this class formation.
Model utility content
The purpose of this utility model is because fretting wear causes main shaft seal hydraulic performance decline during for the long-time running of pumped storage unit, generation is leaked and is entered water pilot bearing system, affect the deficiency of the safe operation of unit, the water retaining ring structure that a kind of hydraulic turbine main shaft sealing is installed is proposed, it is characterized in that, water pilot bearing and main shaft seal are arranged on main shaft, between the guide oil basin base plate of water pilot bearing and main shaft seal collecting ring upper cover, around main shaft, install a water retaining ring additional, and guarantee to leave up and down enough gaps, to guarantee that rear oil tray is installed has enough air to enter, guarantee when temporary water dash circle is installed rear main shaft rotation not scratch with other fixed components simultaneously.
Described water retaining ring is symmetrical halves circle aluminum alloy ring, adopts chek bolt tightly around main shaft, to fix.
The beneficial effects of the utility model are around main shaft, to install a water retaining ring additional between the guide oil basin base plate of water pilot bearing and main shaft seal collecting ring upper cover, to stop that main shaft seal leaks along directly upwards splash of hydraulic turbine main shaft, change the direction of current, thereby the gap of leading between interior oil deflector and hydraulic turbine main shaft along water of avoiding leaking enters water guide oil basin and even fuel tank.Guarantee the safe operation of steam turbine, the utility model is simple in structure, easy for installation, and cost is not high, and successful is applicable to the installing and using of unit of this class formation.
Accompanying drawing explanation
Fig. 1 is mounting arrangements water retaining ring schematic diagram between water pilot bearing and main shaft seal.
Fig. 2 is water retaining ring structural representation.
Embodiment
The utility model proposes the water retaining ring structure that a kind of hydraulic turbine main shaft sealing is installed.Below in conjunction with accompanying drawing, be explained.
Figure 1 shows that mounting arrangements water retaining ring schematic diagram between water pilot bearing and main shaft seal; In figure, water pilot bearing 2 and main shaft seal 5 are installed on main shaft 1, between the water guide oil basin base plate 3 of water pilot bearing and main shaft seal collecting ring upper cover 4, around main shaft, install a water retaining ring 7 additional, and guarantee to leave up and down enough distances, to guarantee that rear oil tray is installed has enough air to enter, guarantee when temporary water dash circle is installed rear main shaft rotation not scratch with other fixed components simultaneously.The described water retaining ring installing additional 7, for stopping that main shaft seal leaks along directly upwards splash of hydraulic turbine main shaft, changes the direction of current, thereby avoids the gap 6 leaking between the interior oil deflector of water pilot bearing 2 and hydraulic turbine main shaft 1 to enter water guide oil basin and even fuel tank.
Figure 2 shows that water retaining ring structural representation.Water retaining ring 7 is symmetrical halves circle aluminum alloy ring, adopts chek bolt tightly fixing around main shaft 1.
Embodiment
On-the-spot real data is measured: water pilot bearing 2 is with main shaft seal 5 up and down at a distance of being 100mm, and it is 6.5mm, hydraulic turbine main shaft diameter 850mm that water is led monolateral design gaps 6 between interior oil deflector and hydraulic turbine main shaft.For ease of dismounting water retaining ring, adopt splitted structure design, diameter 850mm, for after guaranteeing to install, water retaining ring can be closely and main shaft fit and do not got rid of, by two one or two of joint close position, close face and remove respectively 1mm.For guaranteeing effective block water stream, installation strength and meeting spatial requirement, water retaining ring thickness is the monolateral gap 6.5mm of 16mm(>), be highly 37mm.Chek bolt is special-purpose M16 single head.Water retaining ring is placed between water pilot bearing and main shaft seal around main shaft, adjust upper-lower position, all to leave gap up and down, and gap, top is not less than 10mm, to guarantee that oil tray has enough air to enter, guarantee when temporary water dash circle is installed rear main shaft rotation not scratch with other fixed components simultaneously.After location positioning is good, tighten two clamping bolts of two commissures, and check and should fit and supreme lower and circumferencial direction slip with hydraulic turbine main shaft is tight.Install that water retaining ring is really effectively stops that main shaft seal leaks along directly upwards splash of hydraulic turbine main shaft, change the direction of current, thereby the gap of leading between interior oil deflector and hydraulic turbine main shaft along water of avoiding leaking enters water guide oil basin and even fuel tank additional.Guarantee the safe operation of steam turbine, the utility model is simple in structure, easy for installation, and cost is not high, successful, and on other units, applied.
Claims (4)
1. the water retaining ring structure of installing on a hydraulic turbine main shaft sealing, it is characterized in that, water pilot bearing and main shaft seal are installed on main shaft, between the guide oil basin base plate of water pilot bearing and main shaft seal collecting ring upper cover, around main shaft, install a water retaining ring additional, and gap, top is not less than 10mm, water retaining ring does not scratch with other fixed components when rear main shaft rotation is installed.
2. the water retaining ring structure of installing on a kind of hydraulic turbine main shaft sealing according to claim 1, is characterized in that, described water retaining ring is symmetrical halves circle aluminum alloy ring, adopts chek bolt tightly around main shaft, to fix.
3. the water retaining ring structure of installing on a kind of hydraulic turbine main shaft sealing according to claim 1, it is characterized in that, water pilot bearing and main shaft seal are up and down at a distance of being 100mm, and it is 6.5mm that water is led monolateral design gaps between interior oil deflector and hydraulic turbine main shaft, hydraulic turbine main shaft diameter 850mm.
4. the water retaining ring structure of installing on a kind of hydraulic turbine main shaft sealing according to claim 1, is characterized in that, described water retaining ring adopts splitted structure, diameter 850mm, and water retaining ring thickness is 16mm, is highly 37mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660334.2U CN203717218U (en) | 2013-10-24 | 2013-10-24 | Retaining ring structure mounted on main shaft seal of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320660334.2U CN203717218U (en) | 2013-10-24 | 2013-10-24 | Retaining ring structure mounted on main shaft seal of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717218U true CN203717218U (en) | 2014-07-16 |
Family
ID=51156380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320660334.2U Expired - Lifetime CN203717218U (en) | 2013-10-24 | 2013-10-24 | Retaining ring structure mounted on main shaft seal of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314730A (en) * | 2014-10-29 | 2015-01-28 | 国家电网公司 | Water stop ring device of water turbine |
| CN114352460A (en) * | 2022-01-20 | 2022-04-15 | 高海玉 | Novel bulb tubular unit main shaft seal water retaining device |
-
2013
- 2013-10-24 CN CN201320660334.2U patent/CN203717218U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314730A (en) * | 2014-10-29 | 2015-01-28 | 国家电网公司 | Water stop ring device of water turbine |
| CN114352460A (en) * | 2022-01-20 | 2022-04-15 | 高海玉 | Novel bulb tubular unit main shaft seal water retaining device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201795258U (en) | Automatic lubricating device for motor bearing | |
| CN107100999B (en) | Mirror oil centrifugal seal device | |
| CN203717218U (en) | Retaining ring structure mounted on main shaft seal of water turbine | |
| CN101749267A (en) | Spent fuel water tank cooling pump of pressure water reactor nuclear power plant | |
| CN203098813U (en) | Low seam coal mining machine rocker arm cooler and cooling system | |
| CN202992140U (en) | Online lubricating and filtering system of wind turbine generator reducer | |
| CN207161270U (en) | A kind of blower fan oil leakage monitoring device | |
| CN209892373U (en) | Device for preventing upper guide shoe from being overhigh in temperature for hydropower station | |
| CN204827558U (en) | Turbine spindle bearing circulating oil lubrication and cooling device | |
| CN203594686U (en) | Crankshaft thrust for engine | |
| CN204140670U (en) | A kind of water-cooled Hydrodynamic Sliding Bearing | |
| CN208184903U (en) | A kind of magnetic suspending wind turbine generator oil immersed type multiple bearing combination shaft | |
| CN209228682U (en) | Axle envelope formula core main pump oil lubrication system | |
| CN204402576U (en) | Steam turbine oil cylinder sealing gland | |
| CN205315510U (en) | Aerogenerator main shaft bearing sealing device | |
| CN206299415U (en) | Steam turbine alternating current-direct current jacking(oil) pump oil supply system | |
| CN205579121U (en) | Automatic oil supplementing device of bearing box | |
| CN204755200U (en) | Wind -force unit fin transport protection device | |
| CN203374327U (en) | Lubricating oil storage tank of steam turbine | |
| CN201943890U (en) | Oil receiving device of wind power generator unit yaw system | |
| CN204140261U (en) | Water turbine water holding ring device | |
| CN203115048U (en) | Large gear ring for wind power generation | |
| CN203868662U (en) | Jet plate for thin oil jet lubrication system | |
| CN203413107U (en) | Connecting structure for gearbox lubricating system | |
| CN204532669U (en) | A kind of new type water power station unit macro-axis center blowdown pipe device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |