CN104763575B - A kind of energy by ocean current electricity generation system impeller spindle sealing device - Google Patents
A kind of energy by ocean current electricity generation system impeller spindle sealing device Download PDFInfo
- Publication number
- CN104763575B CN104763575B CN201510057235.9A CN201510057235A CN104763575B CN 104763575 B CN104763575 B CN 104763575B CN 201510057235 A CN201510057235 A CN 201510057235A CN 104763575 B CN104763575 B CN 104763575B
- Authority
- CN
- China
- Prior art keywords
- energy
- generation system
- electricity generation
- ocean current
- current electricity
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 99
- 230000005611 electricity Effects 0.000 title claims abstract description 54
- 239000011553 magnetic fluid Substances 0.000 claims abstract description 42
- 239000012530 fluid Substances 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000002775 capsule Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000013535 sea water Substances 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/006—Sealing arrangements
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The present invention relates to a kind of energy by ocean current electricity generation system impeller spindle sealing device, the sealing device includes two secondary magnet fluid sealing pairs, the automatic replenishment device of magnetic fluid, shaft-cup, seal casinghousing, interior bag outside framework oil seal, wear-resistant sleeve and charger, and shaft-cup and seal casinghousing are bolted and are fixed together.Seal casinghousing is telescoping structure, and interior bag outside framework oil seal, two secondary magnet fluid sealing pairs are circle ring, and interior bag outside framework oil seal, two secondary magnet fluid sealing pairs are arranged in order and are assemblied in seal casinghousing inner surface.Seal casinghousing is provided with four the first topping up holes and first air-filled pore, and cabin housing is provided with the second air-filled pore.The automatic replenishment device of magnetic fluid is connected with the first topping up hole, and charger is connected with the first air-filled pore, the second air-filled pore respectively.The sealing device realizes the two way seal of impeller spindle using Magneticfluid Seal Technique, and by the way of the gas of certain pressure, step by step balance external seawater pressure is filled with, it is ensured that the reliability of magnet fluid sealing.
Description
Technical field
The invention belongs to field of new energy generation, and in particular to a kind of energy by ocean current electricity generation system impeller spindle sealing device.
Background technology
The excessive of fossil energy is used so that the problem of shortage of resources and environmental degradation becomes increasingly conspicuous.Energy by ocean current is used as one
Kind of cleaning, reproducible marine energy resources, with rich reserves, regular strong, energy density is big the features such as, it has also become open various countries
Send out the strategic Sexual behavior mode of regenerative resource.Energy by ocean current electricity generation system is the mechanical system that a kind of new utilization energy by ocean current generates electricity.
For energy by ocean current electricity generation system, the sealing that impeller spindle is stretched out at cabin is one of key technology.Due to sea
Stream energy electricity generation system work under bad environment, impeller spindle easily weares and teares, and leakage rate is big, if lubricating oil spills nacelle, can pollute
Marine environment；Meanwhile, seawater can also enter inside nacelle, cabin interior element is suffered erosion, and reduce the energy by ocean current electricity generation system life-span.
In addition, when seal is changed also can extremely inconvenience, it is necessary to energy by ocean current electricity generation system is promoted to more than the water surface, replacement cost compared with
It is high.When the impeller spindle sealing device of energy by ocean current electricity generation system is designed, the reliability and permanence of sealing should be considered, again
Consider to reduce seal friction as far as possible to improve the efficiency and starting characteristic of energy by ocean current electricity generation system.
Due to energy by ocean current electricity generation system operationally, impeller spindle is in rotary motion state, and impeller spindle stretches out cabin
The sealing means at place belong to the sealing of activity shafting.Existing energy by ocean current electricity generation system generally uses combination oil seal method and floating ring
Formula machinery seal method.For combination oil seal method, bad working environments under water can accelerate the abrasion of potted component to lose sealing
Effect, and then leakage is produced, cause the damage of the elements such as gear-box, generator in cabin, while causing water resource pollution.It is just floating
For rotating ring machinery seal method, although its sealing effectiveness is preferable, leakage rate is small, long lifespan, but it adds to potted component
Work precision and installation requirement are higher.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of energy by ocean current electricity generation system impeller spindle sealing device, the ocean current
Energy electricity generation system impeller spindle sealing device uses Magneticfluid Seal Technique, can prevent seawater from permeating and preventing to engine room inside
Lubricating oil is leaked to nacelle exterior, realizes the two way seal that impeller spindle is stretched out at cabin.By respectively in two magnetic fluids
Chamber and engine room inside chamber between sealing pair are filled with the gas of certain pressure, balance the mode of external seawater pressure step by step,
Ensure that the reliability of magnet fluid sealing.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of energy by ocean current electricity generation system impeller spindle sealing device, the energy by ocean current electricity generation system impeller spindle sealing device is consolidated
Surely it is assemblied on the cabin housing of energy by ocean current electricity generation system, the energy by ocean current electricity generation system impeller spindle sealing device includes two secondary magnetic
Fluid Sealing pair, the automatic replenishment device of magnetic fluid, shaft-cup, seal casinghousing, interior bag outside framework oil seal, wear-resistant sleeve and charger, institute
State shaft-cup and seal casinghousing is bolted and is fixed together.The seal casinghousing is telescoping structure, the interior bag skeleton
Oil sealing, two secondary magnet fluid sealing pairs are circle ring, and the interior bag outside framework oil seal, two secondary magnet fluid sealing pairs are arranged in order
It is assemblied in the seal casinghousing inner surface.The automatic replenishment device of magnetic fluid is arranged on the impeller spindle of energy by ocean current electricity generation system
Place.
The seal casinghousing is provided with four the first topping up holes and first air-filled pore, and the cabin housing is provided with
Two air-filled pores.The automatic replenishment device of magnetic fluid is connected by liquid-filling pipe with the first topping up hole, and the inflation sets
It is standby to be connected with first air-filled pore, second air-filled pore respectively by gas ducting.
Further, the magnet fluid sealing is secondary includes permanent magnet and two magnetic poles, and two magnetic poles are located at institute respectively
State the both sides of permanent magnet.The magnetic pole is provided with the second topping up hole corresponding with the first topping up hole, first topping up
Hole and the second topping up hole are by the liquid-filling pipe by the inner surface of the automatic replenishment device of the magnetic fluid and the magnetic pole
It is connected.
Further, the first magnetic shield, two magnet fluid sealing pairs are provided between two magnet fluid sealing pairs
It is close together with first magnetic shield.First magnetic shield is provided with threeth corresponding with first air-filled pore and fills
Stomata, first air-filled pore and gas ducting described in the 3rd air-filled pore are by the charger and first magnetic shield
Inner surface be connected.
Further, the wear-resistant sleeve is enclosed within the impeller spindle of energy by ocean current electricity generation system, the wear-resistant sleeve and the leaf
It is interference fit between wheel main shaft.There is gap between the inner surface of the outer surface of the wear-resistant sleeve and the magnetic pole, the gap
Middle filling magnetic fluid.
Further, the inner surface of the magnetic pole is zigzag structure.
Further, the shaft-cup is provided with dust ring with the junction of the wear-resistant sleeve.
Further, it is provided with spacer between the shaft-cup and the interior bag outside framework oil seal
Further, the first sealing ring is provided between the magnetic pole and the seal casinghousing.
Further, the second sealing ring is provided between the seal casinghousing and cabin housing.
Further, second is provided with every magnetic between the interior bag outside framework oil seal near magnet fluid sealing pair adjacent thereto
Set, the liquid-filling pipe 21 is flexible pipe.
There is following beneficial effect using the present invention：
1st, energy by ocean current electricity generation system impeller spindle sealing device of the present invention uses Magneticfluid Seal Technique, due to magnetic
Fluid Sealing belongs to non-contacting seal, with zero leakage, abrasion less, pollution-free, long lifespan the features such as, can not only improve leaf
Wheel main shaft energy transfer efficiency, so that the generating efficiency of energy by ocean current electricity generation system, can also lift subtracting for energy by ocean current electricity generation system
Shake noise reduction.
2nd, energy by ocean current electricity generation system impeller spindle sealing device of the present invention, close by adjusting two magnetic fluids respectively
The gas pressure grade of chamber and engine room inside chamber between envelope pair, can make energy by ocean current electricity generation system impeller spindle seal dress
Put on the basis of two way seal is realized, at different depth under water, energy by ocean current electricity generation system impeller spindle can sealed
Device adapts to different Underwater Pressures, so as to realize effectively sealing, improves flexibility and the permanence of sealing.
Brief description of the drawings
Fig. 1 is the structural representation of energy by ocean current electricity generation system impeller spindle sealing device described in the embodiment of the present invention；
Fig. 2 illustrates for the part-structure of energy by ocean current electricity generation system impeller spindle sealing device described in the embodiment of the present invention amplifies
Figure；
Fig. 3 is the secondary structural representation of magnet fluid sealing.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Referring to the drawings 1 to accompanying drawing 3.A kind of energy by ocean current electricity generation system impeller spindle sealing device, the energy by ocean current electricity generation system
Impeller spindle sealing device is securely fitted on the cabin housing 1 of energy by ocean current electricity generation system, and stretches out described positioned at impeller spindle 8
At cabin housing 1.
The energy by ocean current electricity generation system impeller spindle sealing device includes that two secondary magnet fluid sealing pairs 10, magnetic fluid are mended automatically
To equipment 20, shaft-cup 30, seal casinghousing 40, interior bag outside framework oil seal 50, wear-resistant sleeve 7 and charger, the shaft-cup 30 and sealing
Housing 40 is bolted and is fixed together, and the automatic replenishment device 20 of magnetic fluid is arranged on the leaf of energy by ocean current electricity generation system
At wheel main shaft 8.
The wear-resistant sleeve 7 is enclosed within the impeller spindle 8 of energy by ocean current electricity generation system, the wear-resistant sleeve 7 and the impeller spindle 8
Between be interference fit.The purpose that the wear-resistant sleeve 7 is used on the impeller spindle 8 is to avoid the impeller spindle 8 in rotation
Transhipment is worn and torn when dynamic.
The seal casinghousing 40 is telescoping structure, and the secondary magnet fluid sealing pair 10 of the interior bag outside framework oil seal 50, two is
Circle ring, the secondary magnet fluid sealing pair 10 of the interior bag outside framework oil seal 50, two is arranged in order and is assemblied in the seal casinghousing 40
Inner surface.The first magnetic shield 60, two magnet fluid sealings secondary 10 and institute are provided between two magnet fluid sealing pairs 10
The first magnetic shield 60 is stated to be close together.
The magnet fluid sealing secondary 10 includes permanent magnet 11 and two magnetic poles 12, and two magnetic poles 12 are respectively positioned at described
The both sides of permanent magnet 11, the inner surface of the magnetic pole 12 is zigzag structure.
The seal casinghousing 40 is provided with four the first topping up holes 41 and first air-filled pore 42, the cabin housing 1
It is provided with the second air-filled pore 43.First magnetic shield 60 is provided with threeth air-filled pore corresponding with first air-filled pore 42
61, first air-filled pore 42 and the 3rd air-filled pore 61 are by the inner surface of first magnetic shield 60 and the seal casinghousing
It is connected outside 40.The magnetic pole 12 is provided with the second topping up hole 13 corresponding with the first topping up hole 41, described first
With outside the seal casinghousing 40 be connected the inner surface of the magnetic pole 12 with the second topping up hole 13 by topping up hole 41.
The automatic replenishment device 20 of magnetic fluid is connected by liquid-filling pipe 21 with the first topping up hole 41, described to fill
Liquid pipe road 21 is flexible pipe.There is the magnetic fluid of certain volume inside the automatic replenishment device 20 of magnetic fluid, presets the portion
Divide the pressure of magnetic fluid.There is gap between the inner surface of the outer surface of the wear-resistant sleeve 7 and the magnetic pole 12, the gap location is filled out
Filled with magnetic fluid.When the pressure of the pressure more than the gap location magnetic fluid of the automatic inside magnetic fluid of replenishment device 20 of the magnetic fluid
When, the magnetic fluid inside the automatic replenishment device 20 of magnetic fluid flows through the liquid-filling pipe in the presence of pressure differential, successively
21st, the first topping up hole 41, the second topping up hole 13, finally flow into outer surface and the magnetic pole 12 of the wear-resistant sleeve 7
Inner surface between gap.
Because the magnetic field at the inner surface sawtooth of the magnetic pole 12 point is most strong, magnetic fluid is adsorbed in institute under the action of a magnetic force
State at the inner surface sawtooth of magnetic pole 12 point, " O " type is formed in gap of the magnetic fluid between the wear-resistant sleeve 7 and the magnetic pole 12 close
Seal formula structure.When the magnet fluid sealing secondary 10 is in without under additional pressure difference environment, magnetic fluid is in magnetic field most strength, i.e.,
At the inner surface sawtooth of the magnetic pole 12 point.When the magnet fluid sealing secondary 10 is in be had under additional pressure difference environment, magnetic fluid
Location and shape will be changed, and magnetic field is balanced each other to the axial force that magnetic fluid is produced with additional pressure difference, and magnetic fluid is new
Equilbrium position, magnetic fluid will prevent sealed medium leakage, so as to reach the purpose of sealing.
The effect of the automatic replenishment device 20 of magnetic fluid is, for the magnet fluid sealing secondary 10 feeds magnetic fluid, to make described
Magnet fluid sealing secondary 10 has good recoverability, so as to improve the use of energy by ocean current electricity generation system impeller spindle sealing device
Life-span.
The charger is connected with first air-filled pore 42, second air-filled pore 43 respectively by gas ducting 22
It is logical.Assuming that external seawater pressure is P1, the sky between the interior bag outside framework oil seal 50 and the adjacent magnet fluid sealing pair 10
The pressure in chamber is P2, and the pressure of the cavity at first magnetic shield 60, between the two secondary magnet fluid sealing pairs 10 is P3, institute
The pressure for stating the internal cavities of cabin housing 1 is P4.Because P1 is more than P2, P2 is more than P3, and P3 is more than P4 so that the magnetic fluid is close
Envelope secondary 10 bears axial compressive force.Inflated to first air-filled pore 42, second air-filled pore 43 respectively through the charger,
Change pressure P3 and P4, can adjust the axial compressive force size that the magnet fluid sealing pair 10 is born, and make the axle that it is born
To pressure in pressure-bearing limit range, it is to avoid 10 over-voltage breakdowns of the magnet fluid sealing pair.
By the pressure rating for adjusting pressure P3 and P4, on the one hand, the magnet fluid sealing pair 10 can be effectively realized
Two way seal；On the other hand, the magnet fluid sealing secondary 10 can be made to adapt to different depth under water working environments, is realizing having
On the premise of effect sealing, flexibility and the permanence of sealing are improved.
Additionally, being provided with spacer 32 between the shaft-cup 30 and the interior bag outside framework oil seal 50, the magnetic pole 12 is close with described
The first sealing ring 14 is provided between capsule body 40, the second sealing ring 15 is provided between the seal casinghousing 40 and cabin housing 1.Institute
State and be provided with the second magnetic shield 51 between the interior bag outside framework oil seal 50 near magnet fluid sealing pair 10 adjacent thereto.
The shaft-cup 30 is provided with dust ring 31 with the junction of the wear-resistant sleeve 7, and the dust ring 31 is mainly used in preventing
Silt in seawater enters the energy by ocean current electricity generation system impeller spindle sealing device.
In sum, energy by ocean current electricity generation system impeller spindle sealing device of the present invention employs as described below close
Envelope measure：
First, Multi-level sealing structure, including the secondary magnet fluid sealing pair 10, first of dust ring 31, interior bag outside framework oil seal 50, two is close
Seal 14, second sealing ring 15 etc.；
2nd, with the axial pressure-bearing of airing form regulation magnet fluid sealing secondary 10；
3rd, the magnetic fluid needed for automatic supply magnet fluid sealing pair 10, the self-regeneration of magnet fluid sealing.
In the presence of above-mentioned three kinds of main seal measures, energy by ocean current electricity generation system impeller spindle sealing of the present invention
Device can realize effective sealing that impeller spindle 8 is stretched out at cabin housing 1.
Claims (10)
1. a kind of energy by ocean current electricity generation system impeller spindle sealing device, the energy by ocean current electricity generation system impeller spindle sealing device is fixed
It is assemblied on the cabin housing (1) of energy by ocean current electricity generation system, it is characterised in that：Including two secondary magnet fluid sealings pair (10), magnetic current
The automatic replenishment device of body (20), shaft-cup (30), seal casinghousing (40), interior bag outside framework oil seal (50), wear-resistant sleeve (7) and inflation set
Standby, the shaft-cup (30) and seal casinghousing (40) are bolted and are fixed together；The seal casinghousing (40) is telescopic
Structure, the interior bag outside framework oil seal (50), two secondary magnet fluid sealings pair (10) are circle ring, the interior bag outside framework oil seal
(50), two secondary magnet fluid sealings pair (10) are arranged in order and are assemblied in the seal casinghousing (40) inner surface；The magnetic fluid is automatic
Replenishment device (20) is installed in impeller spindle (8) place of energy by ocean current electricity generation system；
The seal casinghousing (40) is provided with four the first topping up holes (41) and first air-filled pore (42), the cabin housing
(1) it is provided with the second air-filled pore (43)；The automatic replenishment device of magnetic fluid (20) is by liquid-filling pipe (21) and described first
Topping up hole (41) is connected, the charger by gas ducting (22) respectively with first air-filled pore (42), described the
Two air-filled pores (43) are connected.
2. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 1, it is characterised in that：The magnetic
Fluid Sealing pair (10) includes permanent magnet (11) and two magnetic poles (12), and two magnetic poles (12) are located at the permanent magnet respectively
(11) both sides；The magnetic pole (12) is provided with the second topping up hole (13) corresponding with the first topping up hole (41), described
By the liquid-filling pipe (21), by the magnetic fluid, supply sets automatically with the second topping up hole (13) in the first topping up hole (41)
Standby (20) are connected with the inner surface of the magnetic pole (12).
3. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 2, it is characterised in that：Two institutes
State and be provided with the first magnetic shield (60) between magnet fluid sealing pair (10), two magnet fluid sealings pair (10) with described first every
Magnetosheath (60) is close together；First magnetic shield (60) is provided with threeth corresponding with first air-filled pore (42) and fills
Stomata (61), first air-filled pore (42) and the 3rd air-filled pore (61) gas ducting (22) are by the charger
Inner surface with first magnetic shield (60) is connected.
4. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 3, it is characterised in that：It is described resistance to
Grinding set (7) is enclosed within the impeller spindle of energy by ocean current electricity generation system (8), is between the wear-resistant sleeve (7) and the impeller spindle (8)
Interference fit；There is gap between the outer surface of the wear-resistant sleeve (7) and the inner surface of the magnetic pole (12), filled in the gap
Magnetic fluid.
5. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 4, it is characterised in that：The magnetic
The inner surface of pole (12) is zigzag structure.
6. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 5, it is characterised in that：The axle
Lid (30) is provided with dust ring (31) with the junction of the wear-resistant sleeve (7).
7. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 5 or 6, it is characterised in that：Institute
State and be provided with spacer (32) between shaft-cup (30) and the interior bag outside framework oil seal (50).
8. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 7, it is characterised in that：The magnetic
The first sealing ring (14) is provided between pole (12) and the seal casinghousing (40).
9. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 8, it is characterised in that：It is described close
The second sealing ring (15) is provided between capsule body (40) and cabin housing (1).
10. according to a kind of energy by ocean current electricity generation system impeller spindle sealing device described in claim 9, it is characterised in that：It is described
The second magnetic shield (51) is provided between interior bag outside framework oil seal (50) near magnet fluid sealing pair (10) adjacent thereto；It is described to fill
Liquid pipe road (21) is flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057235.9A CN104763575B (en) | 2015-02-04 | 2015-02-04 | A kind of energy by ocean current electricity generation system impeller spindle sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057235.9A CN104763575B (en) | 2015-02-04 | 2015-02-04 | A kind of energy by ocean current electricity generation system impeller spindle sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763575A CN104763575A (en) | 2015-07-08 |
| CN104763575B true CN104763575B (en) | 2017-07-07 |
Family
ID=53645607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510057235.9A Active CN104763575B (en) | 2015-02-04 | 2015-02-04 | A kind of energy by ocean current electricity generation system impeller spindle sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763575B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402399A (en) * | 2016-10-25 | 2017-02-15 | 北京交通大学 | Magnetic liquid sealing device capable of reducing magnetic liquid evaporation |
| CN108069343B (en) * | 2018-01-23 | 2024-03-01 | 中国水利水电夹江水工机械有限公司 | Micro-pressure difference underwater silt prevention device and method |
| CN113839510B (en) * | 2021-09-26 | 2022-08-19 | 佛山德玛特智能装备科技有限公司 | Sealing structure and motor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125467A (en) * | 1983-12-08 | 1985-07-04 | Rigaku Denki Kk | High vacuum shaft sealing device using magnetic fluid |
| JPS6238877A (en) * | 1985-08-14 | 1987-02-19 | Ebara Corp | Shaft-seal apparatus for hydraulic machinery using magnetic fluid |
| JPH03213692A (en) * | 1990-01-17 | 1991-09-19 | Chiyoudendou Hatsuden Kanren Kiki Zairyo Gijutsu Kenkyu Kumiai | Shaft seal device for oilless screw compressor |
| JPH04347070A (en) * | 1991-05-21 | 1992-12-02 | Nippon Seiko Kk | Multistage magnetic fluid sealing device for vacuum |
| CN2132881Y (en) * | 1992-07-25 | 1993-05-12 | 东北工学院 | Rotating shaft magnetic fluid sealing device |
| CN101749432B (en) * | 2010-01-28 | 2012-01-11 | 北京交通大学 | Sealing device with evenly distributed magnetic liquid |
| JP5622423B2 (en) * | 2010-04-12 | 2014-11-12 | イーグル工業株式会社 | Shaft seal device |
| TWM481195U (en) * | 2013-07-11 | 2014-07-01 | Chien-Chung Kang | Multiple waterproof chamber structure for rotating rod |
| CN203670800U (en) * | 2014-01-17 | 2014-06-25 | 北京交通大学 | Magnetic liquid sealing device for sealing liquid |
-
2015
- 2015-02-04 CN CN201510057235.9A patent/CN104763575B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104763575A (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104763575B (en) | A kind of energy by ocean current electricity generation system impeller spindle sealing device | |
| WO2016000610A1 (en) | Tidal current energy electric generating apparatus | |
| WO2018157829A1 (en) | Ocean energy generation device and ocean energy generation water leakage protection device thereof | |
| CN104329202A (en) | Bulb through-flow turbine | |
| CN201193709Y (en) | Magnetic mechanical oil seal | |
| CN107477181A (en) | A kind of underwater sealing structure | |
| CN206386221U (en) | Rotary well bore sidewall core taker and gear type motor | |
| CN104141737B (en) | One is speed reduction driving mechanism for power under water | |
| CN201610859U (en) | Sealing device for oil-immersed diving pump shaft | |
| CN205371643U (en) | Hydraulic generator oil mist seal structure | |
| CN209170100U (en) | Well submersible motor sand-prevention structure | |
| CN104141790B (en) | A kind of sealing device of speed reduction driving mechanism for power under water | |
| CN203562868U (en) | A device for sealing the motor shaft of a water turbine of a sea tide power generating device | |
| CN201318312Y (en) | Water-filling submersible electric pump | |
| CN201671751U (en) | Mixed flow turbine main-axle combination sealing device | |
| CN104500745B (en) | A kind of high abrasion and there is the floating sealing of absorption compensation function | |
| CN206786003U (en) | A kind of shaft seal structure with quiet dynamic double containment | |
| CN206439375U (en) | It is directed to sealing structure on the input of wind-driven generator gear-box and output shaft | |
| CN213271017U (en) | Circulating water turbine adopting magnetic fluid sealing structure | |
| CN204371544U (en) | Bulb through-flow turbine | |
| CN200993073Y (en) | Power generating device for river, undersea and windforce field | |
| CN217539550U (en) | High-sealing planetary reducer | |
| CN107859587A (en) | Trunnion axis semi-integrated type energy by ocean current generating set | |
| CN204716447U (en) | A kind of water motility output unit | |
| CN210978715U (en) | Mechanical sealing device for leakage prevention of pump valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |