CN108868912A - A kind of air-tight sealing oil baffle and Turbo-generator Set applied to bearing - Google Patents
A kind of air-tight sealing oil baffle and Turbo-generator Set applied to bearing Download PDFInfo
- Publication number
- CN108868912A CN108868912A CN201810735702.2A CN201810735702A CN108868912A CN 108868912 A CN108868912 A CN 108868912A CN 201810735702 A CN201810735702 A CN 201810735702A CN 108868912 A CN108868912 A CN 108868912A
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- Prior art keywords
- slot
- negative pressure
- bearing
- air
- venthole
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
- F01D25/183—Sealing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The embodiment of the present application provides a kind of air-tight sealing oil baffle applied to bearing, can prevent outside the oil leakage to bearing in the bearing housing in Turbo-generator Set, while the sundries on the outside of water vapour and bearing housing can also be prevented to enter bearing housing, pollutes lubricating oil.Shell including annular, enclosure interior is provided with positive seal slot and negative pressure extraction slot, positive seal slot and negative pressure extraction slot are the slot of annular, and partition is provided between positive seal slot and negative pressure extraction slot, and partition is used to separate positive seal slot and negative pressure extraction slot；Air inlet is provided on shell on the outside of bearing housing, air inlet is used to import the compressed air in the shell external world in positive seal slot；Venthole is set on partition, and one end of venthole is connect with positive seal slot, and the other end of venthole is connect with negative pressure extraction slot, and venthole is used to compressed air importing negative pressure and extracts slot out.
Description
Technical field
This application involves mechanical manufacturing field more particularly to a kind of air-tight sealing oil baffles and turbine generator applied to bearing
Unit.
Background technique
The oily shelves of Turbo-generator Set are that lubricating oil is prevented to leak and prevent foreign matter, water vapour etc. from entering Bearing inner dirt
Contaminate the device of lubricating oil.
The main oily shelves of Turbo-generator Set have comb teeth oil shelves, contact floating oily shelves, general air-tight sealing oil baffle at present.Its
In, comb teeth oil shelves poor reliability, contact oil shelves are easy to induce shafting vibration, and existing air-tight sealing oil baffle needs dry air
It seals, it is very high to air water content requirement, when air quality control is bad, it can make lubricating oil oil mixed with water, give steam turbine
Generating set safe operation brings risk.
It is a problem to be solved it can be seen that inventing a kind of oily shelves for preventing steam from entering Bearing inner.
Summary of the invention
The embodiment of the present application provides a kind of air-tight sealing oil baffle and Turbo-generator Set applied to bearing, can prevent
Outside the oil leakage to bearing in bearing housing in Turbo-generator Set, while it can also prevent outside water vapour and bearing housing
The sundries of side enters bearing housing, pollutes lubricating oil.
The embodiment of the present application first aspect provides a kind of air-tight sealing oil baffle applied to bearing, specifically includes：
The shell of annular, the outer ring of the shell and the bearing housing of the Turbo-generator Set are detachably connected, the shell
The distance between rotor of the inner ring of body and the Turbo-generator Set is pre-determined distance；
The enclosure interior is provided with positive seal slot and negative pressure extraction slot, the positive seal slot and the negative pressure
Extraction slot is the slot of annular, is provided with partition, the partition and institute between the positive seal slot and negative pressure extraction slot
Shell integrated molding is stated, the partition is used to separate the positive seal slot and negative pressure extraction slot；
Air inlet is provided on the shell on the outside of the bearing housing, one end of the air inlet and the steamer are sent out
The compressed air steam line of motor group connects, and the other end of the air inlet is connect with the positive seal slot, and it is described into
Stomata is used to import the compressed air in the shell external world in the positive seal slot；
Venthole is set on the partition, and one end of the venthole is connect with the positive seal slot, the venthole
The other end and the negative pressure extraction slot connect, and the venthole is used to importing the compressed air into the negative pressure extraction
Slot.
Optionally, venthole, the smoke evacuation of one end of the venthole and the Turbo-generator Set are set on the shell
Blower connection, the other end of the venthole are connect with negative pressure extraction slot, and the venthole is used for the compression sky
Gas imports the smoke exhaust fan from negative pressure extraction slot.
Optionally, the positive seal slot and negative pressure extraction slot are symmetrical arranged centered on the partition.
Optionally, oil outlet is additionally provided on the shell, one end of the oil outlet is connected with negative pressure extraction slot,
The other end of the oil outlet is connect with the bearing housing of the Turbo-generator Set, and the oil outlet will be for that will leak into the negative pressure
Lubricating oil in extraction slot imports in the bearing housing of the Turbo-generator Set.
Optionally, the quantity of the air inlet opened up on the shell is at least two, and at least two air inlets
Hole is symmetrical arranged.
Optionally, the quantity for the venthole being arranged on the partition is at least four, and at least four ventilations
It uniformly arranges on the partition in hole.
Optionally, the quantity of the venthole is two, and the quantity of two ventholes is at least two, and at least two
A venthole is uniformly arranged on the shell of negative pressure extraction slot.
Optionally, the quantity of the oil outlet is at least one, and at least one described oil outlet is close to the bearing housing
The stage of side uniformly arrange.
The embodiment of the present application second aspect provides a kind of Turbo-generator Set, specifically includes described in any of the above embodiments answer
Air-tight sealing oil baffle for bearing.
In view of the foregoing it is apparent that the air-tight sealing oil baffle provided by the embodiments of the present application applied to bearing, is applied to steamer
Generating set, and when Turbo-generator Set is run, due to being provided with air inlet on shell, the air inlet is by the steamer
The compressed air that the blowing plant of generating set generates imports the positive seal of the air-tight sealing oil baffle applied to bearing
Slot, interior in the positive seal slot later to form certain positive pressure, compressed air is along the positive seal slot and the negative pressure
It extracts the venthole on the partition between slot out and imports the negative pressure extraction slot, the oil leakage in prevention bearing housing to bearing
Outside, the air that is partially compressed while in the positive seal slot passes through between the air-tight sealing oil baffle and rotor applied to bearing
Gap be leaked on the outside of bearing housing, prevent water vapour and outside sundries to enter bearing housing, pollute lubricating oil.
Detailed description of the invention
Fig. 1 is the embodiment schematic diagram of Turbo-generator Set oil shelves system provided by the embodiments of the present application；
Fig. 2 is one embodiment schematic diagram of the air-tight sealing oil baffle provided by the embodiments of the present application applied to bearing；
Fig. 3 is a kind of cross-sectional view and main view of the air-tight sealing oil baffle applied to bearing provided in an embodiment of the present invention；
Fig. 4 is a kind of cross-sectional view and dorsal view of the air-tight sealing oil baffle applied to bearing provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present application provides a kind of air-tight sealing oil baffle and Turbo-generator Set applied to bearing, can prevent
Outside the oil leakage to bearing in bearing housing in Turbo-generator Set, while it can also prevent outside water vapour and bearing housing
The sundries of side enters bearing housing, pollutes lubricating oil.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
The oily shelves of Turbo-generator Set are that lubricating oil is prevented to leak and prevent foreign matter, vapor etc. from entering Bearing inner dirt
Contaminate the device of lubricating oil.Turbo-generator Set major oil shelves have comb teeth oil shelves, contact floating oily shelves, general hermetic seal at present
Oily shelves.Comb teeth oil shelves poor reliability, contact oil shelves are easy to induce shafting vibration, and existing air-tight sealing oil baffle needs dry sky
Gas seals, very high to air water content requirement, when air quality control is bad, will cause lubricating oil oil mixed with water, gives vapour
The safe operation of turbine generator group brings risk.In view of this, this application provides a kind of air-tight sealing oil baffle applied to bearing, it can
To prevent outside the oil leakage to bearing in the bearing housing in Turbo-generator Set, while water vapour and axis can also be prevented
It holds the sundries on the outside of case and enters bearing housing, pollute lubricating oil.
Referring to Fig. 1, Fig. 1 is a kind of embodiment signal of Turbo-generator Set oil shelves system provided by the embodiments of the present application
Figure, the steam turbine generator set system connect the pump-line of 101 entrance of smoke exhaust fan, air supply pipe by compressed air steam line
Shut-off valve 103 on road, each bearing box oil shelves compressed air regulating valve 105 and pressure gauge 107 matched with its, on pump-line
Each bearing oil shelves (not shown) extraction control valve 106 and pressure gauge 104 matched with its composition, the total mouth of pump-line connects
In smoke exhaust fan inlet, and be located at adjustment bearing housing negative pressure adjustment door 102 before, with guarantee negative pressure extraction slot in pressure be lower than
Pressure in bearing housing, compressed air will not enter in bearing housing.
In conjunction with refering to fig. 1 and Fig. 2, Fig. 2 be a kind of air-tight sealing oil baffle applied to bearing provided by the embodiments of the present application
A structural schematic diagram, should be specifically included applied to air-tight sealing oil baffle of bearing：
The shell 200 of annular, wherein the outer ring of the shell 200 and the bearing housing of Turbo-generator Set are detachably connected,
The distance between the inner ring of the shell 200 and the rotor of the Turbo-generator Set are pre-determined distance, such as 5CM.
The shell 200 is internally provided with positive seal slot 201 and negative pressure extraction slot 202, the positive seal slot
201 and the negative pressure extraction slot be annular slot, the positive seal slot 201 and the negative pressure extraction slot 202 between
It is provided with partition 203, the partition 203 is integrally formed with the shell 200, and the partition is used for the positive seal slot
201 and the negative pressure extraction slot 202 separate；Specifically, the air-tight sealing oil baffle applied to bearing is divided into two halves up and down,
Middle upper half oil shelves and lower half oil shelves center are opened there are two semi-annular slot, and the air-tight sealing oil baffle applied to bearing is installed to institute
After stating Turbo-generator Set, two semi-rings of upper half oil shelves and lower half oil shelves just form two annulars, the as described positive densification
Sealing groove 201 and the negative pressure extract slot 202 out.
Air inlet 204, one end of the air inlet 204 are provided on the outside of the bearing housing 300 on the shell 200
It is connect with the compressed air steam line of the Turbo-generator Set, the other end and the positive seal of the air inlet 204
Slot 201 connects, and the air inlet 204 is used for the compressed air in the compressed air steam line of the Turbo-generator Set
It imports in the positive seal slot 201, i.e., in the Turbo-generator Set operational process, compressed air steam line can be imported
Compressed air, the air inlet 204 of the compressed air through steam line and the air-tight sealing oil baffle applied to bearing
It imports in the positive seal slot 201.
It is provided with venthole 205 on the partition 203, wherein one end of the venthole 205 and the positive seal slot
201 connections, the venthole 205 are connect with negative pressure extraction slot 202, and the venthole 205 is used for the compressed air
Import the negative pressure extraction slot 202.
In summary as can be seen that when Turbo-generator Set operation, compressed air in steam line via it is described into
After stomata 204 enters in the positive seal slot 201, in the certain positive pressure of the interior formation of the positive seal slot 201, by institute
Stating applied to the air-tight sealing oil baffle of bearing includes an annular shell 202, the inner ring of the shell and the Turbo-generator Set
The distance between the rotor of bearing housing be pre-determined distance, meanwhile, the enclosure interior be arranged the positive seal slot 201 and
The negative pressure extracts slot 202 out, and extracts the positive seal slot 201 and the negative pressure out slot 202 by the partition 203
It separates, and is provided with the venthole 205 on the partition 203, at this point, described compressed air a part is along the positive densification
The venthole 205 on the partition 203 between sealing groove and negative pressure extraction slot imports the negative pressure extraction slot 203,
It prevents outside the oil leakage to bearing in bearing housing, while another part of institute's compressed air passes through the interior of the shell 200
Gap between ring and bearing housing rotor 301 is leaked to 300 outside of bearing housing, and water vapour and outside sundries is prevented to enter bearing
Case pollutes lubricating oil.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, venthole 206 is set on the shell 200, is illustrated below with reference to Fig. 3, Fig. 3 is this
The cross-sectional view and main view for a kind of air-tight sealing oil baffle applied to bearing that inventive embodiments provide, i.e., it is described to be applied to bearing
One side of the air-tight sealing oil baffle far from the bearing housing, the smoke evacuation of one end of the venthole 206 and the Turbo-generator Set
The other end of blower connection, the venthole 206 is connect with negative pressure extraction slot 202, and the venthole 206 is used for institute
It states compressed air and imports the smoke exhaust fan from negative pressure extraction slot.The i.e. described negative pressure extraction slot 202 passes through the air inlet
206 are connected with the smoke exhaust fan of the Turbo-generator Set by pipeline, and pipeline connection is located at the control valve of smoke exhaust fan
Before, in the operational process of the Turbo-generator Set, due to the swabbing action of smoke exhaust fan, slot is extracted out in the negative pressure
Form certain negative pressure in 202, and due to the pipeline being connected with negative pressure extraction slot 202 connect smoke exhaust fan control valve it
Before, by adjusting control valve, allows the negative pressure to extract negative pressure in slot 202 out and prevent compressed air slightly larger than the negative pressure in bearing housing
Into bearing housing.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, during the positive seal slot 201 and negative pressure extraction slot 202 with the partition 203 be
The heart is symmetrical arranged.
It should be noted that the thickness of the positive seal slot 201 and negative pressure extraction slot 202 and the partition
203 thickness can be identical, can be it is different, specifically without limitation.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, it is additionally provided with oil outlet 207 on the shell 200, is carried out below with reference to Fig. 2 and Fig. 4
Illustrate, Fig. 4 is a kind of cross-sectional view and dorsal view of the air-tight sealing oil baffle applied to bearing provided by the embodiments of the present application, i.e. institute
The air-tight sealing oil baffle applied to bearing is stated close to the one side of the bearing housing, one end of the oil outlet 207 and the negative pressure are taken out
Slot 202 is connected out, and the other end of the oil outlet 207 is connect with the bearing housing 300 of the Turbo-generator Set, the oil outlet
207 for importing the lubricating oil leak into the negative pressure extraction slot 202 in the bearing housing 300 of the Turbo-generator Set.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, the setting of air inlet in the embodiment of the present application is illustrated in conjunction with Fig. 2 and Fig. 3, institute
The quantity for stating the air inlet 204 opened up on shell 200 is at least two, and at least two air inlets 204 are symmetrically set
It sets.
It should be noted that the quantity of air inlet can be two herein, or it is multiple, it can be symmetrical arranged,
Asymmetric it can be arranged, as long as the positive seal slot 201 can be imported compressed air in Turbo-generator Set operational process
, specifically without limitation.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, the quantity for the venthole 205 being arranged on the partition 203 is at least four, and extremely
Few four ventholes 205 are uniformly arranged on the partition.
It should be noted that the quantity of venthole 205 can be 4 herein, or 5, equally can be 3,2
It is a, 1 etc., can also furthermore it is possible to be uniformly to be arranged on the partition 203 with the center of circle of the outer ring of the shell 200
With random arrangement, as long as the compressed air for entering the positive seal slot 201 can be imported the negative pressure extracts slot 202 out,
Specifically without limitation.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, the quantity of the venthole 206 is at least two, and at least two ventholes 206
It is uniformly arranged on the shell of negative pressure extraction slot.
It should be noted that the quantity of venthole 206 described herein can be two, or it is multiple, it can be uniform
Setting, can also be symmetrical arranged, as long as can extract the negative pressure in slot 202 out in Turbo-generator Set operational process
Compressed air everywhere, in Fig. 3 with the quantity of the venthole 206 be 3 be illustrated, specifically without limitation.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
It in the alternative embodiment of Seal Oil shelves, is illustrated in conjunction with refering to Fig. 3, oil outlet 207, institute is additionally provided on the shell 200
The one end for stating oil outlet 207 is connected with negative pressure extraction slot 202, the other end and the turbine generator of the oil outlet 202
The bearing housing of unit connects, and the lubricating oil that the oil outlet 207 is used to leak into the negative pressure extraction slot 202 imports the vapour
In the bearing housing of turbine generator group.
Optionally, on the basis of above-mentioned Fig. 2 corresponding embodiment, the gas provided in an embodiment of the present invention applied to bearing
In the alternative embodiment of Seal Oil shelves, the quantity of the oil outlet 207 is at least one, and at least one described oil outlet 207
It is arranged on the shell 200 close to the side of the bearing housing.
It should be noted that the quantity of oil outlet described herein can be at least one, or other numerical value, such as 2
It is a, 3 etc., can the side on the shell 200 close to the bearing housing uniformly arrange, can also with random arrangement, as long as
The lubricating oil leak into the negative pressure extraction slot 202 can be imported into the bearing housing 300 in Turbo-generator Set operational process
, it is illustrated for quantity 3 of the oil outlet 207 in Fig. 4, specifically without limitation.
The embodiment of the present application also provides a kind of Turbo-generator Set, which includes described in any of the above-described
The air-tight sealing oil baffle applied to bearing.
It should be noted that the air-tight sealing oil baffle provided in an embodiment of the present invention applied to bearing, can not only be applied to
On Turbo-generator Set, the mechanical equipments such as gas turbine, the hydraulic turbine are also applicable to, in order to describe simplicity, only with steamer
It is illustrated for generating set.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this application.
Claims (9)
1. a kind of air-tight sealing oil baffle applied to bearing is applied to Turbo-generator Set, which is characterized in that including：
The shell of annular, the outer ring of the shell and the bearing housing of the Turbo-generator Set are detachably connected, the shell
The distance between rotor of inner ring and the Turbo-generator Set is pre-determined distance；
The enclosure interior is provided with positive seal slot and negative pressure extraction slot, the positive seal slot and negative pressure extraction
Slot is the slot of annular, is provided with partition, the partition and the shell between the positive seal slot and negative pressure extraction slot
Body by integral forming, the partition are used to separate the positive seal slot and negative pressure extraction slot；
Air inlet, one end of the air inlet and the steam turbine generator are provided on the shell on the outside of the bearing housing
The compressed air steam line connection of group, the other end of the air inlet is connect with the positive seal slot, and the air inlet
For the compressed air in the shell external world to be imported in the positive seal slot；
Venthole is set on the partition, one end of the venthole is connect with the positive seal slot, the venthole it is another
One end is connect with negative pressure extraction slot, and the venthole is used to the compressed air importing the negative pressure and extracts slot out.
2. the air-tight sealing oil baffle according to claim 1 applied to bearing, which is characterized in that outlet is arranged on the shell
Hole, one end of the venthole are connect with the smoke exhaust fan of the Turbo-generator Set, the other end of the venthole with it is described
Negative pressure extracts slot connection out, and the venthole is used to the compressed air importing the Smoke from negative pressure extraction slot
Machine.
3. the air-tight sealing oil baffle according to claim 1 or 2 applied to bearing, which is characterized in that the positive seal slot
It is symmetrical arranged centered on the partition with negative pressure extraction slot.
4. the air-tight sealing oil baffle according to claim 1 or 2 applied to bearing, which is characterized in that also set on the shell
It is equipped with oil outlet, one end of the oil outlet is connected with negative pressure extraction slot, the other end of the oil outlet and the steamer
The bearing housing of generating set connects, and the lubricating oil that the oil outlet is used to leak into the negative pressure extraction slot imports the steamer
In the bearing housing of generating set.
5. the air-tight sealing oil baffle according to claim 1 or 2 applied to bearing, which is characterized in that opened up on the shell
The air inlet quantity be at least two, and at least two air inlets be symmetrical arranged.
6. the air-tight sealing oil baffle according to claim 1 or 2 applied to bearing, which is characterized in that be arranged on the partition
The quantity of the venthole be at least four, and at least four ventholes are uniformly arranged on the partition.
7. the air-tight sealing oil baffle according to claim 2 applied to bearing, which is characterized in that the quantity of the venthole is
At least two, and at least two ventholes are uniformly arranged on the shell of negative pressure extraction slot.
8. the air-tight sealing oil baffle according to claim 4 applied to bearing, which is characterized in that the quantity of the oil outlet is
At least one, and bottom of at least one described oil outlet on the housing close to the side of the bearing housing is arranged.
9. a kind of Turbo-generator Set, which is characterized in that including as of any of claims 1-8 applied to bearing
Air-tight sealing oil baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735702.2A CN108868912B (en) | 2018-07-04 | 2018-07-04 | Be applied to airtight oil shelves and turbo generator set of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735702.2A CN108868912B (en) | 2018-07-04 | 2018-07-04 | Be applied to airtight oil shelves and turbo generator set of bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868912A true CN108868912A (en) | 2018-11-23 |
| CN108868912B CN108868912B (en) | 2021-07-30 |
Family
ID=64299322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810735702.2A Active CN108868912B (en) | 2018-07-04 | 2018-07-04 | Be applied to airtight oil shelves and turbo generator set of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868912B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805819A (en) * | 2019-10-29 | 2020-02-18 | 新兴铸管股份有限公司 | Thin oil lubrication device capable of reducing oil leakage |
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|---|---|---|---|---|
| CN2080592U (en) * | 1990-07-27 | 1991-07-10 | 高绍纪 | Pneumatic backflow end face tail shaft seal |
| JPH04203529A (en) * | 1990-11-29 | 1992-07-24 | Shin Meiwa Ind Co Ltd | Sealing device |
| JP2001254837A (en) * | 2000-03-08 | 2001-09-21 | Shimadaya Corp | Shaft sealing structure for container fixing type mixer to be used for food processing |
-
2018
- 2018-07-04 CN CN201810735702.2A patent/CN108868912B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080592U (en) * | 1990-07-27 | 1991-07-10 | 高绍纪 | Pneumatic backflow end face tail shaft seal |
| JPH04203529A (en) * | 1990-11-29 | 1992-07-24 | Shin Meiwa Ind Co Ltd | Sealing device |
| JP2001254837A (en) * | 2000-03-08 | 2001-09-21 | Shimadaya Corp | Shaft sealing structure for container fixing type mixer to be used for food processing |
Non-Patent Citations (2)
| Title |
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| 沈小杰等: "空气密封油档在210MW汽轮机组上的应用", 《安徽电力》 * |
| 马昌岳: "大型压缩机密封技术应用与研究", 《CNKI硕士学位论文全文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805819A (en) * | 2019-10-29 | 2020-02-18 | 新兴铸管股份有限公司 | Thin oil lubrication device capable of reducing oil leakage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108868912B (en) | 2021-07-30 |
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