CN203560707U - Closed circulation system for oil-mist sealing and collection of electric generator - Google Patents
Closed circulation system for oil-mist sealing and collection of electric generator Download PDFInfo
- Publication number
- CN203560707U CN203560707U CN201320640632.5U CN201320640632U CN203560707U CN 203560707 U CN203560707 U CN 203560707U CN 201320640632 U CN201320640632 U CN 201320640632U CN 203560707 U CN203560707 U CN 203560707U
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- oil
- mist
- oil mist
- sealing
- sealing cover
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- 239000003595 mist Substances 0.000 title claims abstract description 125
- 238000007789 sealing Methods 0.000 title claims abstract description 78
- 239000012530 fluid Substances 0.000 claims description 22
- 239000000779 smoke Substances 0.000 claims description 12
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 157
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a closed circulation system for oil-mist sealing and collection of an electric generator. The system comprises a rotating component of an electric generator thrust bearing or a guide bearing and an oil groove encircling the rotating component, wherein a sealing cover is arranged at the upper part of the oil groove; a sealing structure arranged between the sealing cover and the rotating component is used for isolating the oil groove from the outside; an air inlet, an air outlet and an oil return hole which are communicated with the oil groove are formed in the sealing cover respectively; a fan is arranged on the rotating component of the electric generator; an oil-mist collector is arranged on the sealing cover or an oil groove cover and communicated with the air outlet through an oil-mist suction pipe; an outlet of the oil-mist collector is communicated with the air inlet; and oil agglutinated by the oil-mist collector is conveyed into the oil return hole through an oil return pipe. According to the system, oil mist can be limited in the space formed by the oil groove, the oil-mist collector and the oil-mist suction pipe, so that the oil mist is agglutinated into the liquid state by the oil-mist collector and flows back to the oil groove, sealing and collection of the oil mist are realized, and the problem of overflow of the oil mist is solved.
Description
Technical field
The utility model relates to oil mist sealing and the collecting system technical field of generator.
Background technique
Dynamo bearing generally adopts sliding bearing, and bearing liner infiltrates in lubricant oil.When unit rotates, lubricant oil stirs, clashes in oil groove on the one hand, produces a large amount of steam bubbles, and steam bubble explosion forms mist of oil, and the local place of tiling oil film temperature is higher on the other hand, and lubricant oil vaporization, forms mist of oil.Therefore, the generation of mist of oil is inevitably, and along with the increasing of generating unit speed, or the increasing of unit tiling place rotatable parts linear velocity, and the mist of oil order of severity increases.In unit running process, mist of oil constantly accumulates, and in oil groove, oil mist concentration and gas pressure raise, and mist of oil can overflow from sealing configuration.The mist of oil overflowing, to generator and environment, in very serious situation, may cause the series of problems such as decreasing insulating, and generator reliability is reduced.
Under prior art condition, the mist of oil processing method of generally using is utilize oil mist collector by mist of oil sucking-off in oil groove and be aggregated into fluid, if publication number is CN202220708U, the Chinese patent literature that open day is on May 16th, 2012 discloses a kind of oil mist collector, relates in particular to a kind of oil mist collector for oil tank of water turbine generator.Comprise oil-storing barrel, the upper end in described oil-storing barrel is provided with mist of oil condensation module, and the top of described oil-storing barrel is provided with mist of oil collecting pipe, and described mist of oil collecting pipe is plugged in mist of oil condensation module, and the bottom of described oil-storing barrel is provided with drain line.This model utility is simple in structure, easy to operate for the oil mist collector of oil tank of water turbine generator, reduces disposal of pollutants.
But still there is following defect in the prior art that the above-mentioned patent documentation of take is representative:
Due to oil mist collector principle and structural shortcoming, type selecting is unreasonable or safeguard the reasons such as incorrect, the effect of oil mist collector is had a greatly reduced quality, in its tail gas, still there is a certain amount of mist of oil, for the very large unit of mist of oil amount, even occur that naked eyes can be observed the situation that also has a large amount of mist of oils in oil mist collector tail gas.Therefore, be necessary oil mist sealing structure and gathering-device to improve.
Summary of the invention
The utility model is intended to for the existing defect of above-mentioned prior art and deficiency, the closed-cycle system of a kind of generator oil mist sealing and collection is provided, the utility model can be limited in mist of oil in the space of oil groove, oil mist collector and area from absorbing smoke outwards pipe formation, make mist of oil be aggregated into liquid state by oil mist collector and be back to oil groove, realize sealing and the collection of mist of oil, thereby solve the problem that mist of oil overflows.
The utility model is by adopting following technical proposals to realize:
The closed-cycle system of a kind of generator oil mist sealing and collection, the rotatable parts that comprise generator thrust bearing or guide bearing, surround the oil groove of rotatable parts, oil groove top is provided with sealing cover, the sealing configuration arranging between sealing cover and rotatable parts is isolated from the outside described oil groove, it is characterized in that: on described sealing cover, have the inlet hole being communicated with oil groove, exhaust port and spill port, on described rotatable parts, be provided with for air-flow is directed into the fan of exhaust port from inlet hole, fan is between rotatable parts and sealing cover, on the lid of sealing cover or oil groove, be provided with oil mist collector, oil mist collector is communicated with described exhaust port by area from absorbing smoke outwards pipe, the outlet of oil mist collector is communicated with described inlet hole, fluid by oil mist collector aggegation is stored in oil sump tank, oil sump tank is communicated with spill port by return tube, fluid is inputed in oil groove.
Described sealing cover be middle part with the lid shape raising up, the sealing cover inwall raising up forms an annular chamber around described rotatable parts, described inlet hole is opened on the sealing cover inwall raising up.
On described return tube, one-way valve is installed.
Described return tube be shaped as serpentine.
The outlet of described oil mist collector is communicated with described inlet hole through exhaust emission tube.
Described fan is axial flow fan, and axial flow fan is arranged in described annular chamber.
Described fan is centrifugal fan or mixed flow fan.
The number of described inlet hole, exhaust port, spill port and oil mist collector is one or more.
Compared with prior art, the beneficial effect that the utility model reaches is as follows:
1, in the utility model, adopt and " in capping, have the inlet hole being communicated with oil groove, exhaust port and spill port, externally be equipped with oil mist collector, oil mist collector is communicated with described exhaust port by area from absorbing smoke outwards pipe, the outlet of oil mist collector is communicated with described inlet hole, fluid by oil mist collector aggegation inputs in described spill port through return tube, on rotatable parts, be provided for air-flow to be directed into from inlet hole the fan of exhaust port " such mode of structure, make mist of oil through area from absorbing smoke outwards pipe, enter oil mist collector under the pressure of fan and be aggregated into fluid, the tail gas of oil mist collector is drawn back oil groove through pipe and fan, so, gas forms sealing and circulating, constantly mist of oil being sent into oil mist collector from oil groove is aggregated into fluid and is back to oil groove, and the suction force due to fan, gas can not overflow from sealing cover and rotatable parts sealing, the utility model can be limited in mist of oil in the space of oil groove, oil mist collector and area from absorbing smoke outwards pipe formation, make mist of oil be aggregated into liquid state by oil mist collector and be back to oil groove, realize sealing and the collection of mist of oil, can stop due to the solidifying mist of oil problem that the complete aggegation of mist of oil can not be caused of oil mist collector, simultaneously, also can reduce even to stop mist of oil overflows from the sealing configuration between sealing cover and rotatable parts, thereby, can prevent contaminated with oil mist generator and surrounding environment, can give security for generator reliable operation.
2, in the utility model, axial flow fan is installed in the annular chamber that the sealing cover inwall that raises up forms around described generator rotatable parts, be convenient to reduce and adjust the gap of fan and annular chamber sidewall, the pressure that can better keep fan rotation to produce, prevent that described gap from causing fan pressure release, thereby can guarantee that closed-cycle system well moves.
3, in the utility model, fluid by oil mist collector aggegation is stored in oil sump tank, oil sump tank is communicated with spill port by return tube, fluid is inputed in oil groove, adopt the form of oil sump tank that the fluid of aggegation can be stored in oil sump tank, when fluid be accumulated to a certain amount of after by return tube in spill port inputs to oil groove.
4, in the utility model, on return tube, install one-way valve additional or do pipe in "S" shape, can make fluid be back in oil groove, can prevent that again mist of oil from entering into oil mist collector by return tube.
Accompanying drawing explanation
Below in conjunction with specification drawings and specific embodiments the utility model is described in further detail wherein:
Fig. 1 is embodiment's 1 structural representation;
Fig. 2 is embodiment's 2 structural representations.
Mark in figure: 1, rotatable parts, 2, oil groove, 3, sealing cover, 31, annular chamber, 32, inlet hole, 33, exhaust port, 34, spill port, 4, area from absorbing smoke outwards pipe, 5, oil mist collector, 51, oil sump tank, 6, exhaust emission tube, 7, fan, 8, return tube, arrow indication is gas flow direction.
Embodiment
Embodiment 1
As preferred forms of the present utility model, with reference to Figure of description 2, on oil groove 2 tops, sealing cover 3 is set, sealing cover 3 tops arrange annular chamber 31, annular chamber 31 inner headed faces arrange 1 or several inlet holes 32, 1 or several exhaust ports 33 and spill port 34 are set in sealing cover plane, exhaust port 33 is connected with oil mist collector 5 by area from absorbing smoke outwards pipe 4, oil mist collector 5 is directly placed on sealing cover or oil groove covers, oil mist collector outlet is connected with sealing cover inlet hole 32 through exhaust emission tube 6, the fluid of oil mist collector aggegation is stored in oil sump tank 51, oil sump tank 51 is connected with spill port 34 through return tube 8, one-way valve is installed on return tube, on the rotatable parts 1 that contact with sealing cover, fan 7 is set.Fan 7 reaches following effect: in oil groove, mist of oil is under fan pressure and oil mist collector suction, by area from absorbing smoke outwards pipe, enter oil mist collector, the inlet hole of the tail gas of oil mist collector on sealing cover is back to sealing cover annular chamber, in fan blows back oil groove, so, gas forms sealing and circulating, ceaselessly the mist of oil in oil groove is delivered to and in oil mist collector, is aggregated into fluid.Oil mist collector aggegation gained fluid is directly back to oil groove by return tube 8 and spill port 34.
Described fan 7 can be centrifugal fan, axial flow or mixed flow fan, structure depending on sealing cover 3, rotatable parts 1 and oil groove 2, in this example, select to adopt axial flow fan, fan structure is also relevant with the pressure of the required generation of fan, the pressure of the required generation of fan is through calculative determination, its effect need to meet: the tail gas of oil mist collector 5 can be drawn back to oil groove, but the air outside sealing cover can not be sucked to oil groove in a large number.
The visual concrete structure of sealing cover form is selected various types of sealing configurations, and its effect need to meet: be used in conjunction with and can send oil mist collector tail gas back to oil groove with fan 7, but not in a large number suction seal cover outside air.
Oil mist collector need to meet: mist of oil partly or entirely can be aggregated into fluid.Fluid in oil sump tank 61 is accumulated to a certain amount ofly directly gets back to oil groove by return tube 8 and hole 45.For realizing this process, can on return tube 8 pipes, install one-way valve additional or pipe 8 be done to pipe in "S" shape, its effect need to meet: make fluid can be back to oil groove, and mist of oil can not enter oil mist collecting device by return tube 8.
The utility model utilizes sealing cover, is installed on fan, oil mist collector and pipeline on the rotatable parts that contact with sealing cover, make mist of oil through area from absorbing smoke outwards pipeline, enter oil mist collector under the pressure of fan and be aggregated into fluid, the tail gas of oil mist collector by the road and fan drawn back oil groove, so, gas forms sealing and circulating, constantly mist of oil being sent into oil mist collector from oil groove is aggregated into fluid and is back to oil groove, and due to the suction force of fan, gas can not overflow from sealing cover and rotatable parts sealing.The utility model can be limited in mist of oil in the space of oil groove, oil mist collector and area from absorbing smoke outwards pipeline formation, makes mist of oil be aggregated into liquid state by oil mist collector and is back to oil groove, realizes sealing and the collection of mist of oil, thereby solves the problem that mist of oil overflows.
As another better embodiment of the utility model, with reference to Fig. 1, it comprises the rotatable parts of generator thrust bearing or guide bearing, surround the oil groove of rotatable parts, oil groove top is provided with sealing cover, the sealing configuration arranging between sealing cover and rotatable parts is isolated from the outside described oil groove, sealing configuration can be contact type sealing structure, slit seal structure, sealed type sealing configuration or comb-shaped sealing configuration, on described sealing cover, have the inlet hole being communicated with oil groove, exhaust port and spill port, on described rotatable parts, be provided with for air-flow is directed into the fan of exhaust port from inlet hole, fan is between rotatable parts and sealing cover, on the lid of sealing cover or oil groove, be provided with oil mist collector, oil mist collector is communicated with described exhaust port by area from absorbing smoke outwards pipe, the outlet of oil mist collector is communicated with described inlet hole, fluid by oil mist collector aggegation inputs in described spill port through return tube.Return tube be shaped as serpentine.Fan is centrifugal fan or mixed flow fan.The number of inlet hole, exhaust port, spill port and oil mist collector is 2.
Claims (8)
1. the closed-cycle system of a generator oil mist sealing and collection, the rotatable parts (1) that comprise generator thrust bearing or guide bearing, surround the oil groove (2) of described rotatable parts, oil groove (2) top is provided with sealing cover (3), the sealing configuration arranging between sealing cover (3) and rotatable parts (1) is isolated from the outside described oil groove (2), it is characterized in that: on described sealing cover (3), have the inlet hole (32) being communicated with oil groove (2), exhaust port (33) and spill port (34), on described rotatable parts (1), be provided with for air-flow is directed into the fan (7) of exhaust port (33) from inlet hole (32), fan (7) is positioned between rotatable parts (1) and sealing cover (3), on the lid of sealing cover (3) or oil groove (2), be provided with oil mist collector (5), oil mist collector (5) is communicated with described exhaust port (33) by area from absorbing smoke outwards pipe (4), the outlet of oil mist collector (5) is communicated with described inlet hole (32), fluid by oil mist collector (5) aggegation is stored in oil sump tank (51), oil sump tank (51) is communicated with spill port (34) by return tube (8), fluid is inputed in oil groove (2).
2. the closed-cycle system of a kind of generator oil mist sealing according to claim 1 and collection, it is characterized in that: described sealing cover (3) is for middle part is with the lid shape raising up, the sealing cover raising up (3) inwall forms an annular chamber (31) around described rotatable parts (1), and described inlet hole (32) is opened on the sealing cover raising up (3) inwall.
3. the closed-cycle system of a kind of generator oil mist sealing according to claim 1 and 2 and collection, is characterized in that: described return tube is provided with one-way valve on (8).
4. the closed-cycle system of a kind of generator oil mist sealing according to claim 1 and 2 and collection, is characterized in that: described return tube (8) be shaped as serpentine.
5. the closed-cycle system of a kind of generator oil mist sealing according to claim 1 and 2 and collection, is characterized in that: the outlet of described oil mist collector (5) is communicated with described inlet hole (32) through exhaust emission tube (6).
6. the closed-cycle system of a kind of generator oil mist sealing according to claim 2 and collection, is characterized in that: described fan (7) is axial flow fan (7), and axial flow fan (7) is arranged in described annular chamber (31).
7. the closed-cycle system of a kind of generator oil mist sealing according to claim 1 and collection, is characterized in that: described fan (7) is centrifugal fan (7) or mixed flow fan (7).
8. the closed-cycle system of a kind of generator oil mist sealing according to claim 1 and collection, is characterized in that: the number of described inlet hole (32), exhaust port (33), spill port (34) and oil mist collector (5) is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640632.5U CN203560707U (en) | 2013-10-17 | 2013-10-17 | Closed circulation system for oil-mist sealing and collection of electric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320640632.5U CN203560707U (en) | 2013-10-17 | 2013-10-17 | Closed circulation system for oil-mist sealing and collection of electric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560707U true CN203560707U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320640632.5U Expired - Lifetime CN203560707U (en) | 2013-10-17 | 2013-10-17 | Closed circulation system for oil-mist sealing and collection of electric generator |
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| CN (1) | CN203560707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486425A (en) * | 2013-10-17 | 2014-01-01 | 东方电气集团东方电机有限公司 | Closed circulation system for sealing and collecting oil fog of generator |
-
2013
- 2013-10-17 CN CN201320640632.5U patent/CN203560707U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486425A (en) * | 2013-10-17 | 2014-01-01 | 东方电气集团东方电机有限公司 | Closed circulation system for sealing and collecting oil fog of generator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
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| CX01 | Expiry of patent term |