CN112555422A - Self-pumping self-adjusting infinite circulation sealing system and using method - Google Patents
Self-pumping self-adjusting infinite circulation sealing system and using method Download PDFInfo
- Publication number
- CN112555422A CN112555422A CN202011204495.1A CN202011204495A CN112555422A CN 112555422 A CN112555422 A CN 112555422A CN 202011204495 A CN202011204495 A CN 202011204495A CN 112555422 A CN112555422 A CN 112555422A
- Authority
- CN
- China
- Prior art keywords
- self
- vortex
- sealing cavity
- sealing
- oil
- 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.)
- Granted
Links
Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-pumping self-adjusting infinite circulation sealing system and a using method thereof, wherein the self-pumping self-adjusting infinite circulation sealing system comprises a sealing mechanism body, wherein the sealing mechanism body is sleeved on the outer surface of a rotating shaft; the sealing mechanism body comprises a hollow oil groove, and the upper surface of the oil groove is connected with a hollow vortex sealing cavity; an impeller is arranged in the vortex sealing cavity and connected to the side surface of the rotating shaft; the lower part of the outer surface of the vortex sealing cavity is connected with an outlet pipeline, one end of the outlet pipeline is communicated with a condensing device, and the other end of the condensing device is connected with the inside of the oil groove through a pipeline. The system utilizes the rotation of the rotating shaft to drive the impeller to rotate, sealed air pressure flow is formed through the upper blades, oil mist of an oil groove below the impeller is sucked out and conveyed to the condensing device through centrifugal force generated by the lower blades, oil flows back to the oil groove through an oil return pipeline at the bottom side of the condensing device, and partial air is discharged back to the oil groove through the air outlet to form a self-circulation sealing system.
Description
Technical Field
The invention belongs to the technical field of bearing oil tank sealing, and particularly relates to a self-pumping self-adjusting infinite circulation sealing system and a using method thereof.
Background
At present, large-scale rotating machinery equipment that is moving all designs has the bearing oil tank, and the bearing oil tank need place a large amount of lubricating oil and lubricate the heat dissipation to the axle bush, because the sound junction needs to be sealed, all adopts following several kinds of sealed forms at present: contact bearing seal, felt seal, comb seal, brush seal.
Oil mist and dust appearing in the bearing oil tank are adsorbed on the insulating layer for a long time, and will corrode the insulation of a power generation wire rod and the like, the insulating property is reduced, the aging is accelerated, and short circuit and breakdown blasting of a motor coil are easily caused. Potential harm is brought to the safe, stable and reliable operation of the generator, and the safe production of the generator is threatened. The oil leakage of the bearing box of the generator and the oil throwing cause the loss of turbine oil in the generator to be large, the running environment of the generator set is not good, the oil is required to be frequently added into the oil groove, the workload of daily maintenance is increased, the maintenance times of the generator are greatly increased, the labor and the time are wasted, and the running cost of the generator set is increased. Therefore, it is desirable to design a self-pumping, self-regulating infinite loop seal system and method of use to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic-pumping self-adjusting infinite circulation sealing system and a using method thereof, wherein the system drives a impeller to rotate by utilizing the rotation of a rotating shaft, on the basis of the centrifugal force principle, sealed air pressure flow is formed in a vortex sealing cavity by an upper blade, the oil mist of an oil groove below is sucked out by the centrifugal force generated by a lower blade, the oil mist is conveyed into a condensing device through an outlet pipeline, the oil mist is condensed into oil liquid, the oil liquid flows back into the oil groove through an oil return pipeline at the bottom side of the condensing device, and part of air is discharged back into the oil groove through an air outlet to form the automatic circulation sealing system.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a self-pumping self-adjusting infinite circulation sealing system comprises a sealing mechanism body, wherein the sealing mechanism body is sleeved on the outer surface of a rotating shaft; the sealing mechanism body comprises a hollow oil groove, and the upper surface of the oil groove is connected with a hollow vortex sealing cavity; an impeller is arranged in the vortex sealing cavity and connected to the side surface of the rotating shaft; the lower part of the outer surface of the vortex sealing cavity is connected with an outlet pipeline, one end of the outlet pipeline is communicated with a condensing device, and the other end of the condensing device is connected with the inside of the oil groove through a pipeline.
Preferably, a gap is arranged between the upper part of the sealing mechanism body and the rotating shaft to serve as an air inlet, an opening adjusting device is connected to the air inlet, and the opening adjusting device is electrically connected with the automatic control unit.
Preferably, the impeller comprises upper blades and lower blades, and the inclination angle of the upper blades is adjustable; and a packing sealing strip is arranged at the joint of the impeller and the rotating shaft.
Preferably, at least one auxiliary regulator is fixedly connected with the blades on the upper part of the impeller, and the auxiliary regulator is electrically connected with the power storage device; the auxiliary regulator is electrically connected with the automatic control unit.
Preferably, the inner wall of the vortex sealing cavity is connected with a pressure sensor, and the pressure sensor is electrically connected with the automatic control unit.
Preferably, a gap is arranged between the vortex sealing cavity and the oil groove to serve as an oil mist outlet.
Preferably, the use method of the self-pumping self-adjusting infinite loop sealing system comprises the following steps:
s1, sleeving the sealing mechanism body on the outer surface of the rotating shaft; the impeller rotates along with the rotating shaft, and the upper blades are stirred in the vortex sealing cavity to form air pressure flow as sealing air pressure flow;
s2, detecting the pressure value in the vortex sealing cavity in real time by a pressure sensor on the inner wall of the vortex sealing cavity, sending an effective signal to an automatic control unit when the pressure value exceeds a set threshold range, controlling the action of an auxiliary regulator of at least one upper blade through the automatic control unit, and regulating the inclination angle of at least one upper blade so as to regulate the centrifugal force generated by the rotation of the upper blade to regulate the pressure value in the vortex sealing cavity;
s3, detecting the pressure value in the vortex sealing cavity in real time by the pressure sensor on the inner wall of the vortex sealing cavity, sending an effective signal to the automatic control unit when the pressure value exceeds a set threshold range, and controlling the opening adjusting device to adjust the opening of the air inlet through the automatic control unit so as to adjust the air pressure entering the vortex sealing cavity;
s4, the lower blade of the impeller rotates to generate centrifugal force, the oil mist escaping from the oil groove below is sucked into the vortex sealing cavity from the oil mist outlet, and then enters the condensing device through the outlet pipeline on the side surface of the vortex sealing cavity to be condensed into oil liquid; the oil flows back to the oil groove through an oil return pipeline at the bottom side, and part of air is discharged into the oil groove through an outlet pipeline at the air outlet, so that a self-circulation sealing system is formed.
Preferably, the steps S2 and S3 can be performed synchronously or in a distributed manner; when the pressure in the vortex sealing cavity is kept within a set threshold range, the inclination angle of the upper blade is fixed to the optimal state, meanwhile, the opening regulator is fixed after being regulated to the optimal distance, and the auxiliary regulator and the opening regulator stop acting.
The self-pumping self-adjusting infinite circulation sealing system and the use method thereof have the following beneficial effects:
(1) the system realizes system driving without the help of external equipment and a power supply, and a self-circulation sealing system is formed by utilizing the centrifugal force generated by the rotation of the impeller driven by the rotation of the rotating shaft, so that the effects of energy conservation, emission reduction, high efficiency and environmental protection are fully achieved; the inclination angle and the air inlet opening degree of the impeller are completely controlled and operated automatically by a program, so that time and labor are saved;
(2) the system does not need to stop the generator set when processing the escaped oil mist, and can effectively solve the problem of the escaped oil mist generated by the bearing seal of the generator set under the state of not influencing the operation of the generator set;
(3) the system is improved on the basis of the traditional sealing, the air pressure flow formed by the rotation of the impeller is used for sealing, and compared with the common sealing form of the bearing oil tank of the large-scale rotating mechanical equipment, the sealing performance is greatly improved;
(4) the system effectively solves the problem of oil mist escape of the generator set, avoids the harm of corrosion, insulation performance reduction, accelerated aging and the like to equipment caused by the oil mist escape, and effectively improves the safety and stability of the unit operation;
(5) the system has wide application range, is not limited to the application of sealing the bearing oil tank cover of the large-scale water turbine generator set in the hydropower station industry, and can be suitable for sealing the bearing oil tank of all large-scale rotating mechanical equipment.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic cross-sectional structure of the present invention.
FIG. 2 is a schematic plan view of the present invention.
The reference numbers in the figures are: the device comprises a sealing mechanism body 1, an impeller 2, an air inlet 3, an oil mist outlet 4, an electric power storage device 5, an auxiliary regulator 6, a vortex sealing cavity 7, a pressure sensor 8, an automatic control unit 9, an opening regulator 10, an outlet pipeline 11, a condensing device 12, a packing sealing strip 13, a rotating shaft 14 and an oil groove 15.
Detailed Description
As shown in fig. 1-2, an automatic-pumping self-adjusting infinite-circulation sealing system comprises a sealing mechanism body 1, wherein the sealing mechanism body 1 is sleeved on the outer surface of a rotating shaft 14; the sealing mechanism body 1 comprises a hollow oil groove 15, and the upper surface of the oil groove 15 is connected with a hollow vortex sealing cavity 7; an impeller 2 is arranged in the vortex sealing cavity 7, and the impeller 2 is connected to the side surface of the rotating shaft 14; the lower part of the outer surface of the vortex sealing cavity 7 is connected with an outlet pipeline 11, one end of the outlet pipeline 11 is communicated with a condensing device 12, and the other end of the condensing device 12 is connected with the inside of an oil groove 15 through a pipeline.
Preferably, a gap is arranged between the upper part of the sealing mechanism body 1 and the rotating shaft 14 to serve as the air inlet 3, the air inlet 3 is connected with an opening adjusting device, and the opening adjusting device is electrically connected with the automatic control unit 9.
Preferably, the impeller 2 comprises upper and lower blades, the upper blade pitch angle being adjustable; and a packing sealing strip 13 is arranged at the joint of the impeller 2 and the rotating shaft 14.
Preferably, at least one auxiliary regulator 6 is fixedly connected to the upper blade of the impeller 2, and the auxiliary regulator 6 is electrically connected with the power storage device 5; the auxiliary regulator 6 is electrically connected to the automatic control unit 9.
Preferably, the inner wall of the vortex sealing chamber 7 is connected with a pressure sensor 8, and the pressure sensor 8 is electrically connected with an automatic control unit 9.
Preferably, a gap is provided between the vortex sealed chamber 7 and the oil groove 15 as the oil mist outlet 4.
Preferably, the self-pumping, self-regulating, infinite loop seal system is used as follows:
s1, sleeving the sealing mechanism body 1 on the outer surface of the rotating shaft 14; the impeller 2 rotates along with the rotating shaft 14, and the upper blades are stirred in the vortex sealing cavity 7 to form air pressure flow as sealing air pressure flow;
s2, detecting the pressure value in the vortex seal cavity 7 in real time by the pressure sensor 8 on the inner wall of the vortex seal cavity 7, when the pressure value exceeds a set threshold range, sending an effective signal to the automatic control unit 9 by the pressure sensor 8, controlling the action of the auxiliary regulator 6 of at least one upper blade through the automatic control unit 9, and regulating the inclination angle of at least one upper blade, so as to regulate the centrifugal force generated by the rotation of the upper blade to regulate the pressure value in the vortex seal cavity 7;
s3, detecting the pressure value in the vortex sealing cavity 7 in real time by the pressure sensor 8 on the inner wall of the vortex sealing cavity 7, when the pressure value exceeds the set threshold range, sending an effective signal to the automatic control unit 9 by the pressure sensor 8, and controlling the opening adjusting device 10 to adjust the opening of the air inlet through the automatic control unit 9 so as to adjust the air pressure entering the vortex sealing cavity 7;
s4, the lower blade of the impeller rotates to generate centrifugal force, the oil mist escaping from the oil groove 14 below is sucked into the vortex sealing cavity 7 from the oil mist outlet 4, and then enters the condensing device 12 through the outlet pipeline 11 on the side surface of the vortex sealing cavity 7 to be condensed into oil liquid; the oil flows back to the oil groove 14 through an oil return pipeline at the bottom side, and part of air is discharged back to the oil groove 14 through an outlet pipeline 11 at the air outlet, so that a self-circulation sealing system is formed.
Preferably, the steps S2 and S3 can be performed synchronously or in a distributed manner; when the pressure in the vortex sealed cavity 7 is kept within the set threshold value range, the inclination angle of the upper blade is fixed to the optimal state, meanwhile, the opening degree adjusting device 10 is adjusted to the optimal distance and then fixed, and the auxiliary adjuster 6 and the opening degree adjusting device 10 stop acting.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (8)
1. A self-pumping, self-adjusting infinite circulation seal system characterized by: the sealing mechanism comprises a sealing mechanism body (1), wherein the sealing mechanism body (1) is sleeved on the outer surface of a rotating shaft (14); the sealing mechanism body (1) comprises a hollow oil groove (15), and the upper surface of the oil groove (15) is connected with a hollow vortex sealing cavity (7); an impeller (2) is arranged in the vortex sealing cavity (7), and the impeller (2) is connected to the side surface of the rotating shaft (14); the lower part of the outer surface of the vortex sealing cavity (7) is connected with an outlet pipeline (11), one end of the outlet pipeline (11) is communicated with a condensing device (12), and the other end of the condensing device (12) is connected with the inside of the oil groove (15) through a pipeline.
2. The self-pumping, self-regulating, infinite loop seal system of claim 1, wherein: a gap is arranged between the upper part of the sealing mechanism body (1) and the rotating shaft (14) to serve as an air inlet (3), an opening adjusting device (10) is connected to the air inlet (3), and the opening adjusting device (10) is electrically connected with the automatic control unit (9).
3. The self-pumping, self-regulating, infinite loop seal system of claim 1, wherein: the impeller (2) comprises an upper blade and a lower blade, and the inclination angle of the upper blade is adjustable; and a packing sealing strip (13) is arranged at the joint of the impeller (2) and the rotating shaft (14).
4. The self-pumping, self-regulating, infinite loop seal system of claim 1, wherein: at least one auxiliary regulator (6) is fixedly connected with blades on the upper part of the impeller (2), and the auxiliary regulator (6) is electrically connected with the power storage device (5); the auxiliary regulator (6) is electrically connected with the automatic control unit (9).
5. The self-pumping, self-regulating, infinite loop seal system of claim 1, wherein: the inner wall of the vortex sealing cavity (7) is connected with a pressure sensor (8), and the pressure sensor (8) is electrically connected with an automatic control unit (9).
6. The self-pumping, self-regulating, infinite loop seal system of claim 1, wherein: and a gap is arranged between the vortex sealing cavity (7) and the oil groove (15) and is used as an oil mist outlet (4).
7. The use of the self-pumping, self-regulating infinite loop seal system of claims 1-6, wherein: it comprises the following steps:
s1, sleeving the sealing mechanism body (1) on the outer surface of the rotating shaft (14); the impeller (2) rotates along with the rotating shaft (14), and the upper blades are stirred in the vortex sealing cavity (7) to form air pressure flow as sealing air pressure flow;
s2, detecting a pressure value in the vortex sealing cavity in real time by a pressure sensor (8) on the inner wall of the vortex sealing cavity (7), when the pressure value exceeds a set threshold range, sending an effective signal to an automatic control unit by the pressure sensor (8), controlling the action of an auxiliary regulator (6) of at least one upper blade through the automatic control unit, and regulating the inclination angle of the at least one upper blade so as to regulate the centrifugal force generated by the rotation of the upper blade to regulate the pressure value in the vortex sealing cavity (7);
s3, detecting a pressure value in the vortex sealing cavity in real time by a pressure sensor (8) on the inner wall of the vortex sealing cavity (7), sending an effective signal to an automatic control unit when the pressure value exceeds a set threshold range, and controlling an opening adjusting device (10) to adjust the opening of an air inlet (3) by the automatic control unit so as to adjust the air pressure entering the vortex sealing cavity (7);
s4, the lower blade of the impeller (2) rotates to generate centrifugal force, the oil mist escaping from the oil groove (15) below is sucked into the vortex sealing cavity (7) from the oil mist outlet (4), and then enters the condensing device (12) through the outlet pipeline (11) on the side surface of the vortex sealing cavity (7) to be condensed into oil liquid; the oil flows back to the oil groove (15) through an oil return pipeline at the bottom side, and partial air is discharged back to the oil groove through an outlet pipeline (11) at the air outlet, so that a self-circulation sealing system is formed.
8. The method of using a self-pumping, self-regulating, infinite circulation seal system according to claim 7, wherein: the steps S2 and S3 can be performed synchronously or in a distributed manner; when the pressure in the vortex sealing cavity (7) is kept within a set threshold range, the inclination angle of the upper blade is fixed to an optimal state, the opening regulator (10) is adjusted to an optimal distance and then fixed, and the auxiliary regulator (6) and the opening regulator (10) stop acting.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204495.1A CN112555422B (en) | 2020-11-02 | 2020-11-02 | Self-pumping self-adjusting circulating sealing system and using method |
| CN202310163765.6A CN116241660A (en) | 2020-11-02 | 2020-11-02 | Using method of self-pumping self-adjusting circulating sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204495.1A CN112555422B (en) | 2020-11-02 | 2020-11-02 | Self-pumping self-adjusting circulating sealing system and using method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310163765.6A Division CN116241660A (en) | 2020-11-02 | 2020-11-02 | Using method of self-pumping self-adjusting circulating sealing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112555422A true CN112555422A (en) | 2021-03-26 |
| CN112555422B CN112555422B (en) | 2023-03-24 |
Family
ID=75041632
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011204495.1A Active CN112555422B (en) | 2020-11-02 | 2020-11-02 | Self-pumping self-adjusting circulating sealing system and using method |
| CN202310163765.6A Pending CN116241660A (en) | 2020-11-02 | 2020-11-02 | Using method of self-pumping self-adjusting circulating sealing system |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310163765.6A Pending CN116241660A (en) | 2020-11-02 | 2020-11-02 | Using method of self-pumping self-adjusting circulating sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112555422B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05263949A (en) * | 1992-01-20 | 1993-10-12 | Toshiba Corp | Shaft sealing device of bearing oil tank |
| DE69935538D1 (en) * | 1998-11-02 | 2007-04-26 | Sanyo Electric Co | The stirling device |
| CN202520958U (en) * | 2012-03-21 | 2012-11-07 | 杭州杭发发电设备有限公司 | Gas sealing system for hydrogenerator |
| CN202708074U (en) * | 2012-07-31 | 2013-01-30 | 南阳防爆（苏州）特种装备有限公司 | Oil leakage-proof spiral seal structure for sliding bearing |
| 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 |
| CN104896291A (en) * | 2015-05-20 | 2015-09-09 | 中国长江电力股份有限公司 | Self-pumped water-turbine generator set bearing oil mist absorption device |
| US20160177964A1 (en) * | 2013-07-30 | 2016-06-23 | Johnson Precision Engineering (Suzhou) Co., Ltd. | Spiral Flow Constant Pressure Pump |
| CN109026772A (en) * | 2018-07-18 | 2018-12-18 | 北汽福田汽车股份有限公司 | Fan component, the control method of fan component and vehicle |
| CN209604551U (en) * | 2019-03-28 | 2019-11-08 | 重庆华能水电设备制造有限公司 | Clearance-type oil mist prevention sealing cover with air guide structure |
| CN110469672A (en) * | 2019-08-15 | 2019-11-19 | 东方电气集团东方电机有限公司 | Generate electricity sump oil mist prevention system |
| CN111006023A (en) * | 2019-12-03 | 2020-04-14 | 福建棉花滩水电开发有限公司 | Air accelerating sealing device |
| CN213982023U (en) * | 2020-11-02 | 2021-08-17 | 中国长江电力股份有限公司 | Self-pumping self-adjusting infinite circulation sealing system |
-
2020
- 2020-11-02 CN CN202011204495.1A patent/CN112555422B/en active Active
- 2020-11-02 CN CN202310163765.6A patent/CN116241660A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05263949A (en) * | 1992-01-20 | 1993-10-12 | Toshiba Corp | Shaft sealing device of bearing oil tank |
| DE69935538D1 (en) * | 1998-11-02 | 2007-04-26 | Sanyo Electric Co | The stirling device |
| CN202520958U (en) * | 2012-03-21 | 2012-11-07 | 杭州杭发发电设备有限公司 | Gas sealing system for hydrogenerator |
| CN202708074U (en) * | 2012-07-31 | 2013-01-30 | 南阳防爆（苏州）特种装备有限公司 | Oil leakage-proof spiral seal structure for sliding bearing |
| US20160177964A1 (en) * | 2013-07-30 | 2016-06-23 | Johnson Precision Engineering (Suzhou) Co., Ltd. | Spiral Flow Constant Pressure Pump |
| 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 |
| CN104896291A (en) * | 2015-05-20 | 2015-09-09 | 中国长江电力股份有限公司 | Self-pumped water-turbine generator set bearing oil mist absorption device |
| CN109026772A (en) * | 2018-07-18 | 2018-12-18 | 北汽福田汽车股份有限公司 | Fan component, the control method of fan component and vehicle |
| CN209604551U (en) * | 2019-03-28 | 2019-11-08 | 重庆华能水电设备制造有限公司 | Clearance-type oil mist prevention sealing cover with air guide structure |
| CN110469672A (en) * | 2019-08-15 | 2019-11-19 | 东方电气集团东方电机有限公司 | Generate electricity sump oil mist prevention system |
| CN111006023A (en) * | 2019-12-03 | 2020-04-14 | 福建棉花滩水电开发有限公司 | Air accelerating sealing device |
| CN213982023U (en) * | 2020-11-02 | 2021-08-17 | 中国长江电力股份有限公司 | Self-pumping self-adjusting infinite circulation sealing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116241660A (en) | 2023-06-09 |
| CN112555422B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209293963U (en) | Anti-stall electric device for wind power generator | |
| CN213982023U (en) | Self-pumping self-adjusting infinite circulation sealing system | |
| CN112555422B (en) | Self-pumping self-adjusting circulating sealing system and using method | |
| CN213511053U (en) | Cabin cover for offshore wind turbine | |
| CN110397558B (en) | High-efficient type aerogenerator with heat dissipation function | |
| CN211174652U (en) | Submerged pump capable of preventing idle rotation | |
| CN112343777A (en) | Heat dissipation type offshore wind power generation equipment | |
| CN108202069B (en) | A gas power device for part cleaning machine | |
| CN208316511U (en) | A kind of high efficiency and heat radiation formula motor | |
| CN214837220U (en) | High-efficiency energy-saving fan with simple structure | |
| CN207339510U (en) | A kind of electric machine radiator | |
| CN211930392U (en) | End cover structure of wind driven generator | |
| CN214466100U (en) | Maintenance-free efficient air sealing structure for generator oil groove | |
| CN210423023U (en) | Propylene glycol vacuum pump | |
| CN112943645A (en) | High-efficiency energy-saving fan with simple structure | |
| CN107017077A (en) | A kind of forced oil-circulation cooled high-power transformer cooler | |
| CN210164574U (en) | Auxiliary Powered Wind Turbine | |
| CN114877056A (en) | Automatic barring gear of wind generating set gear box | |
| CN112502985A (en) | Combined low-cavitation multistage centrifugal pump | |
| CN221257168U (en) | Energy-saving centrifugal fan | |
| CN209340464U (en) | Wind turbine lubricating oil auxiliary radiating device | |
| CN112705520A (en) | Equipment for cleaning dust adhered to surface of rotating shaft of fan and keeping rotating speed | |
| CN205036441U (en) | Chemical plant is with refrigeration fan clutch structure | |
| CN219015021U (en) | Water-electricity linkage mechanism of circulating water cooling tower | |
| CN221096733U (en) | Cooling device of wind generating set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |