CN104879173A - Standby oil supply device of lubricating system for bearings of spindles of large power generation sets - Google Patents
Standby oil supply device of lubricating system for bearings of spindles of large power generation sets Download PDFInfo
- Publication number
- CN104879173A CN104879173A CN201510207016.4A CN201510207016A CN104879173A CN 104879173 A CN104879173 A CN 104879173A CN 201510207016 A CN201510207016 A CN 201510207016A CN 104879173 A CN104879173 A CN 104879173A
- Authority
- CN
- China
- Prior art keywords
- pneumatic
- valve
- vapour
- driver
- main shaft
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a standby oil supply device of a lubricating system for bearings of spindles of large power generation sets. The standby oil supply device comprises an oil pump or a diaphragm pump. The oil pump or the diaphragm pump is used for supplying oil to the bearings of the spindles of the power generation sets; the oil pump can be driven by a steam or pneumatic driver, the diaphragm pump can be directly driven by steam or compressed air, a control valve bank, is arranged on a driving medium pipeline and comprises a hydraulic or pneumatic switch valve and a pneumatic regulating valve, the hydraulic or pneumatic switch valve and the pneumatic regulating valve are sequentially arranged along the flowing direction of driving media in a serially connected manner, the hydraulic or pneumatic switch valve is arranged at the front of the pneumatic regulating valve and is used for switching on or off the driving media, the pneumatic regulating valve is arranged at the rear of the hydraulic or pneumatic switch valve and is used for regulating the pressures of the driving media, and requirements on rated working pressures of the driver can be met; an electromagnetic valve is connected with the hydraulic or pneumatic switch valve in parallel and is used as a redundant channel for the driving media; the electromagnetic valve can be started when DCS (distributed control system) signals are received if the electromagnetic valve is under power conditions, and can be automatically started if the electromagnetic valve is under power-loss conditions; a throttle orifice plate is connected with the pneumatic regulating valve in parallel. The standby power supply device has the advantages that most steam or air required by the driver can flow into the driver via the orifice plate when the pneumatic regulating valve fails and cannot be started, and accordingly the minimum force output can be guaranteed.
Description
Technical field
The present invention relates to power plants generating electricity unit main shaft bearing lubrication oil supply system, particularly relate to a kind of Generator Set main shaft bearing lubrication system oil supplying device for subsequent use.
Background technique
Modern power plants, no matter be coal fired power generation, fuel gas generation, nuclear energy power generation or hydroelectric power, for improving Economy, unit is all towards large scale development, the bearing of its support machine group rotor all adopts sliding bearing, and the lubrication oil supply system of pump circulation need be equipped with, these oil supply systems have various form, have main oil pump-oil impeller system (as shown in Figure 1), main oil pump-oil gun system (as shown in Figure 2), gear pump oil supply system and electric oil pump oil supply system (as shown in Figure 3) etc.Their major function is all provide continuous print lubricant oil to unit bearing, ensures that it forms dynamic pressure oil film, prevents axle from directly contacting with bearing, dry friction occurs, and the heat with bearing running.Once system failure of oil feed; then oil film can not be formed; axle will directly contact with bearing; there is dry friction; although robot control system(RCS) can control compressor emergency shutdown; but due to the quality very large (tens of ton up to a hundred can be reached) of machine group rotor; have huge rotator inertia, dry friction will continue the long period, can produce a large amount of heats in this process; temperature sharply rises; cause burning accident, and make main shaft surface metallographic structure change and even crack, thus produce huge rehabilitation expense; shorten the unit operation cycle, economic loss is huge.
Main oil pump in such systems-oil impeller system, main oil pump-injector system and gear pump oil supply system, due to its self-centered characteristic, generally oil-break burning accident can not be there is in normal course of operation, but in the Unit Commitment stage, because generating unit speed does not reach rated speed, its system is exerted oneself and can't be met unit requirement, and electronic auxiliary oil pump can only be relied on to unit fuel feeding, in this process as there is dead electricity or electrical fault, then failure of oil feed can be caused.And electric oil pump oil supply system no matter which kind of state unit is in, as long as dead electricity or electrical fault all can cause oil-break burning accident.
So these systems above all have dependence to a certain degree to the reliability of power supply-distribution system and motor quality, but due to must some such as air-break switch, contactor, relay etc. links be passed through for distribution, its control loop also will be subject to the domination of various sensor, as long as one of them link breaks down all can make Oil pump electrical machinery power down.Although respectively manufacture and design unit and electricity power enterprise is also thinking that various way such as increases redundancy etc., attempt the danger reducing this power down, but these oil-break burning accidents due to auxiliary oil pump and electric oil pump power down or fault initiation still happen occasionally in each high-power station.
For addressing this problem, can only rely on a kind of can without the fuel feeding measure of electric energy when generator protection is shut down.Former generating set capacity is less, can solve this problem in several thousand or several ten thousand kilowatt hours with top petrol tank, because at this moment lubricating oil tank and top petrol tank are all less, it is arranged and installs all than being easier to.Afterwards along with unit capacity develops into hundreds of thousands kilowatt kilowatt hour even up to a million, it is arranged and installs and just becomes complicated and difficult for (see figure 4), as for 600MW grade Turbo-generator Set, its satisfactory top petrol tank comprises oil its weight heavy will more than 100 tons, it is almost impossible for installing in existing factory building, even if be divided into several little fuel tank, mounting arrangements is also very difficult, also makes system become complicated simultaneously.The oil of top petrol tank all needs when compressor emergency shutdown to get back to lubricating oil tank in addition; and the volume of set lubricant oil case is inherently larger; its volume is just made to become larger; so all very large difficulty can be brought to the layout of lubricating oil tank and top petrol tank; except non-increasing hall space, this again Hui Shi power plant cost significantly increase.Certainly a way is also had to be exactly that increase drop tank is to receive the oil return of top petrol tank, so not only need to increase space to place drop tank, and the oil return of top petrol tank also has to pass through main fuel tank and gets back to drop tank, also must join a pump when again opening machine and the oil of drop tank is returned main fuel tank, system just becomes complicated.This cover system of last top petrol tank seems simple, in fact accurate calculating is had to pass through, its capacity, flow velocity must match with the idling curve of every platform unit, careless slightly, be easy to watt accident of grinding occurs, because in unit down speeding procedure, the oil slick thickness of sliding bearing has trend thinning gradually, oil film just may be made to be destroyed once for shortage of oil.
Summary of the invention
For solving the problem, the invention provides a kind of vapour or pneumatic oil supplying device, as the substitute measure for subsequent use of existing electronic oil supplying device, to guarantee the safety of generator main axle bearing.
Technological scheme of the present invention is:
A kind of Generator Set main shaft bearing lubrication system oil supplying device for subsequent use, comprising:
-oil pump, for main shaft bearing fuel feeding, its filler opening is by pipeline communication lubricating oil tank, and its oil outlet leads to main shaft bearing by pipeline, and described flowline is provided with safety check;
-driver, for driving oil pump, this driver is vapour or air impeller, its output shaft connects oil pump, its driven medium import connects vapour source or source of the gas by pipeline, pipeline is provided with control valve group, this control valve group comprises a liquid or pneumatic on-off valve, a pneumatic control valve, arrange by driven medium flow direction sequential series, liquid or pneumatic on-off valve are front, for turning on and off driven medium, pneumatic control valve, rear, for regulating driven medium pressure, meets the rated working pressure of driver.
Described liquid or pneumatic on-off valve are parallel with a solenoid valve, as the redundant channel of driven medium; Receive DCS unblanking when this solenoid valve has an electricity, automatically open when dead electricity.
Described pneumatic control valve is parallel with a restricting orifice, and when pneumatic control valve fault can not be opened, the most of vapour needed for driver or gas enter driver by this orifice plate, ensures that it is MINly exerted oneself.
Described driver is vapour or gas decompressor, vapour or gas motor, one of vapour or air turbine.
Described vapour or gas decompressor are screw types, may also be piston type, go back turbine-type.
Described vapour source from vapour more than boiler of power plant, also can from vapour more than power plant's steam header, also can from vapour more than plant steam tube; Described source of the gas is from air compressor plant, and this air compressor plant comprises air compressor and gas holder, and the top of described gas holder is provided with safety valve.
Another kind of technological scheme of the present invention is:
A kind of Generator Set main shaft bearing lubrication system oil supplying device for subsequent use, comprise diaphragm pump, for main shaft bearing fuel feeding, its filler opening is by pipeline communication lubricating oil tank, its oil outlet leads to main shaft bearing by pipeline, and described flowline is provided with safety check; This diaphragm pump is vapour or membrane pump with pneumatic drive, its driven medium import connects vapour source or source of the gas by pipeline, pipeline is provided with control valve group, and this control valve group comprises a liquid or pneumatic on-off valve, a pneumatic control valve, arrange by driven medium flow direction sequential series, liquid or pneumatic on-off valve are front, and for turning on and off driven medium, pneumatic control valve is rear, for regulating driven medium pressure, meet the rated working pressure of driver.
Described liquid or pneumatic on-off valve are parallel with a solenoid valve, as the redundant channel of driven medium; Receive DCS unblanking when this solenoid valve has an electricity, automatically open when dead electricity.
Described pneumatic control valve is parallel with a restricting orifice, and when pneumatic control valve fault can not be opened, the most of vapour needed for driver or gas enter driver by this orifice plate, ensures that it is MINly exerted oneself.
Beneficial effect of the present invention:
The present invention by vapour or air impeller as electric motor driven oil pump to the measure for subsequent use of the substitute of system fuel feeding; its vapour or source of the gas from enough capacity and pressure boiler more than vapour, vapour or air compressor plant gas holder more than vapour, steam line more than steam header; when rotor after generator outage continues to rotate because of inertia; and electronic oil feed pump because of fault cannot normally work time; vapour or air impeller drive oil pump or by membrane pump with pneumatic drive to system fuel feeding; main shaft bearing is lubricated, guarantees that main shaft bearing can not oil-break.The measure for subsequent use of substitute as electronic oil supplying device, enhances the Security of generator set.
Accompanying drawing explanation
Fig. 1 is a kind of oil supplying device structural drawing of prior art
Fig. 2 is the another kind of oil supplying device structural drawing of prior art
Fig. 3 is another oil supplying device structural drawing of prior art
Fig. 4 is a kind of structural drawing of oil supplying device of the present invention
Fig. 5 is the another kind of structural drawing of oil supplying device of the present invention.
Embodiment
embodiment one
See Fig. 4, this Generator Set main shaft bearing lubrication system oil supplying device for subsequent use, comprising:
-oil pump 9, for main shaft bearing fuel feeding, its filler opening is by pipeline communication lubricating oil tank, and its oil outlet leads to main shaft bearing by pipeline, and described flowline is provided with safety check 10;
-driver 1, for driving oil pump 9, described driver 1 be vapour or gas decompressor, vapour or gas motor, vapour or air turbine any one, described vapour or gas decompressor be screw type, may also be piston type, also turbine-type driver.The output shaft of driver 1 connects oil pump, its driven medium import connects vapour source or source of the gas by pipeline, pipeline is provided with control valve group, and this control valve group comprises a liquid or pneumatic on-off valve 3, pneumatic control valve 8, arrange by driven medium flow direction sequential series, liquid or pneumatic on-off valve 3 are front, and for turning on and off driven medium, pneumatic control valve 8 is rear, for regulating driven medium pressure, meet the rated working pressure of driver 1.
Described liquid or pneumatic on-off valve are parallel with a solenoid valve 7, as the redundant channel of driven medium; Receive DCS unblanking when this solenoid valve 7 has an electricity, automatically open when dead electricity.
Described pneumatic control valve 8 is parallel with a restricting orifice 2, and when pneumatic control valve 8 fault can not be opened, the most of vapour needed for driver 1 or gas enter driver 1 by this orifice plate 2, ensures that driver 1 is MIN and exerts oneself.
Described vapour source from vapour more than boiler of power plant, also can from vapour more than power plant's steam header, also can from vapour more than plant steam tube; Described source of the gas is from air compressor plant, and this air compressor plant comprises air compressor and gas holder, and the top of described gas holder is provided with safety valve.
embodiment two
See Fig. 5,
This Generator Set main shaft bearing lubrication system oil supplying device for subsequent use, comprises diaphragm pump 1, for main shaft bearing fuel feeding, its filler opening is by pipeline communication lubricating oil tank, its oil outlet leads to main shaft bearing by pipeline, and described flowline is provided with safety check 10, prevents lubricant oil from flowing backwards; This diaphragm pump 1 is vapour or membrane pump with pneumatic drive, its driven medium import connects vapour source or source of the gas by pipeline, pipeline is provided with control valve group, and this control valve group comprises a liquid or pneumatic on-off valve 3, pneumatic control valve 8, arrange by driven medium flow direction sequential series, liquid or pneumatic on-off valve 3 are front, and for turning on and off driven medium, pneumatic control valve 8 is rear, for regulating driven medium pressure, meet the rated working pressure of driver 1.
For strengthening reliability further, a solenoid valve 7 can be parallel with on liquid or pneumatic on-off valve 3, as the redundant channel of driven medium; Receive DCS unblanking when this solenoid valve 7 has an electricity, automatically open when dead electricity.Also can on pneumatic control valve 8 restricting orifice 2 in parallel, when pneumatic control valve 8 fault can not be opened, the most of vapour needed for driver 1 or gas enter driver 1 by this orifice plate 2, ensure that it is MINly exerted oneself.
In addition, for preventing the lubricant oil in the female pipe of lubricant oil from flowing back to oil pump 9, safety check 10 can be set up on the oil outlet tube of oil pump 9.
The working procedure of this device:
Before generator set normally runs, enough steam or pressurized air should be had.
When generator set is shut down; when lubricating oil pressure is down to a certain setting value; to surge or pneumatic on-off valve 3 and solenoid valve 7 are all opened; pneumatic control valve 8 is opened; steam or pressurized air enter driver 1, drive oil pump 9 to operate, and lubricant oil are pumped into lubricant oil mother pipe; be sent to generator main axle bearing through the female pipe of lubricant oil, realize lubrication.
embodiment two
See Fig. 5, except with except the vapour in membrane pump with pneumatic drive 1 alternate embodiment one or air impeller and oil pump, all the other are all identical with embodiment one.
Claims (9)
1. a Generator Set main shaft bearing lubrication system oil supplying device for subsequent use, comprising:
-oil pump, for main shaft bearing fuel feeding, its filler opening is by pipeline communication lubricating oil tank, and its oil outlet leads to main shaft bearing by pipeline, and described flowline is provided with safety check;
-driver, for driving oil pump, this driver is vapour or air impeller, its output shaft connects oil pump, its driven medium import connects vapour source or source of the gas by pipeline, pipeline is provided with control valve group, this control valve group comprises a liquid or pneumatic on-off valve, a pneumatic control valve, arrange by driven medium flow direction sequential series, liquid or pneumatic on-off valve are front, for turning on and off driven medium, pneumatic control valve, rear, for regulating driven medium pressure, meets the rated working pressure of driver.
2. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 1, it is characterized in that, described liquid or pneumatic on-off valve are parallel with a solenoid valve, as the redundant channel of driven medium; Receive DCS unblanking when this solenoid valve has an electricity, automatically open when dead electricity.
3. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 1, it is characterized in that, described pneumatic control valve is parallel with a restricting orifice, when pneumatic control valve fault can not be opened, most of vapour needed for driver or gas enter driver by this orifice plate, ensure that it is MINly exerted oneself.
4. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 1, is characterized in that, described driver is vapour or gas decompressor, vapour or gas motor, one of vapour or air turbine.
5. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 4, is characterized in that, described vapour or gas decompressor are screw types, may also be piston type, go back turbine-type.
6. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 1, is characterized in that, described vapour source from vapour more than boiler of power plant, also can from vapour more than power plant's steam header, also can from vapour more than plant steam tube; Described source of the gas is from air compressor plant, and this air compressor plant comprises air compressor and gas holder, and the top of described gas holder is provided with safety valve.
7. a Generator Set main shaft bearing lubrication system oil supplying device for subsequent use, comprise diaphragm pump, for main shaft bearing fuel feeding, its filler opening is by pipeline communication lubricating oil tank, its oil outlet leads to main shaft bearing by pipeline, and described flowline is provided with safety check; This diaphragm pump is vapour or membrane pump with pneumatic drive, its driven medium import connects vapour source or source of the gas by pipeline, pipeline is provided with control valve group, and this control valve group comprises a liquid or pneumatic on-off valve, a pneumatic control valve, arrange by driven medium flow direction sequential series, liquid or pneumatic on-off valve are front, and for turning on and off driven medium, pneumatic control valve is rear, for regulating driven medium pressure, meet the rated working pressure of driver.
8. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 7, it is characterized in that, described liquid or pneumatic on-off valve are parallel with a solenoid valve, as the redundant channel of driven medium; Receive DCS unblanking when this solenoid valve has an electricity, automatically open when dead electricity.
9. Generator Set main shaft bearing lubrication system oil supplying device for subsequent use as claimed in claim 7, it is characterized in that, described pneumatic control valve is parallel with a restricting orifice, when pneumatic control valve fault can not be opened, most of vapour needed for driver or gas enter driver by this orifice plate, ensure that it is MINly exerted oneself.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207016.4A CN104879173B (en) | 2015-01-21 | 2015-04-28 | The standby fueller of Generator Set main shaft bearing lubricating system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015100296560 | 2015-01-21 | ||
| CN201510029656.0A CN104533546A (en) | 2015-01-21 | 2015-01-21 | Standby oil supply device of large generator set main shaft bearing lubricating system |
| CN201510207016.4A CN104879173B (en) | 2015-01-21 | 2015-04-28 | The standby fueller of Generator Set main shaft bearing lubricating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879173A true CN104879173A (en) | 2015-09-02 |
| CN104879173B CN104879173B (en) | 2016-09-28 |
Family
ID=52849143
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510029656.0A Withdrawn CN104533546A (en) | 2015-01-21 | 2015-01-21 | Standby oil supply device of large generator set main shaft bearing lubricating system |
| CN201510207016.4A Expired - Fee Related CN104879173B (en) | 2015-01-21 | 2015-04-28 | The standby fueller of Generator Set main shaft bearing lubricating system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510029656.0A Withdrawn CN104533546A (en) | 2015-01-21 | 2015-01-21 | Standby oil supply device of large generator set main shaft bearing lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104533546A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864621A (en) * | 2016-06-15 | 2016-08-17 | 武汉钢铁股份有限公司 | Oil supply device and method |
| CN110319336A (en) * | 2018-03-29 | 2019-10-11 | 上海梅山钢铁股份有限公司 | Blast furnace blower lubricating oil emergency supplement pressure-retaining system |
| CN113738675A (en) * | 2021-09-17 | 2021-12-03 | 南京磁谷科技股份有限公司 | Main motor air-cooled constant temperature system of magnetic suspension air compressor |
| CN114198162A (en) * | 2021-11-30 | 2022-03-18 | 天津国能津能热电有限公司 | Oil supply device for bearing box of steam turbine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832223B (en) * | 2015-06-02 | 2016-03-02 | 济南达能动力技术有限责任公司 | There is dead electricity self set-up type to meet an urgent need the steam turbine of oil supply system and method for work thereof |
| US20190136727A1 (en) * | 2016-05-13 | 2019-05-09 | Castrol Limited | Apparatus and Method |
| CN109340544A (en) * | 2018-11-01 | 2019-02-15 | 浙江富春江水电设备有限公司 | The pressure oil tank oil supply system of large-size horizontal sliding bearing |
| CN110242363B (en) * | 2019-03-14 | 2024-02-09 | 华电电力科学研究院有限公司 | High-safety protection system for steam turbine generator unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB781758A (en) * | 1953-11-13 | 1957-08-28 | Dowty Fuel Syst Ltd | Improvements in liquid fuel supply systems for gas turbine engines |
| JPH04330303A (en) * | 1991-01-30 | 1992-11-18 | Fuji Electric Co Ltd | Emergency lubricating oil supply device for steam turbine facility |
| CN103062609A (en) * | 2012-12-25 | 2013-04-24 | 清华大学 | Nuclear power sliding bearing oil feeding system based on comprehensive measurement of flow, pressure and temperature |
| JP2013079633A (en) * | 2011-10-05 | 2013-05-02 | Toshiba Corp | Steam turbine lubricating oil supply device and steam turbine system |
| CN203640781U (en) * | 2013-12-31 | 2014-06-11 | 淄博桑特动力设备有限公司 | Self-starting oil supply steam turbine |
| CN203925616U (en) * | 2014-05-19 | 2014-11-05 | 山东电力建设第三工程公司 | The steam turbine generator suit oil-piping half oil outer circulatory system |
-
2015
- 2015-01-21 CN CN201510029656.0A patent/CN104533546A/en not_active Withdrawn
- 2015-04-28 CN CN201510207016.4A patent/CN104879173B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB781758A (en) * | 1953-11-13 | 1957-08-28 | Dowty Fuel Syst Ltd | Improvements in liquid fuel supply systems for gas turbine engines |
| JPH04330303A (en) * | 1991-01-30 | 1992-11-18 | Fuji Electric Co Ltd | Emergency lubricating oil supply device for steam turbine facility |
| JP2013079633A (en) * | 2011-10-05 | 2013-05-02 | Toshiba Corp | Steam turbine lubricating oil supply device and steam turbine system |
| CN103062609A (en) * | 2012-12-25 | 2013-04-24 | 清华大学 | Nuclear power sliding bearing oil feeding system based on comprehensive measurement of flow, pressure and temperature |
| CN203640781U (en) * | 2013-12-31 | 2014-06-11 | 淄博桑特动力设备有限公司 | Self-starting oil supply steam turbine |
| CN203925616U (en) * | 2014-05-19 | 2014-11-05 | 山东电力建设第三工程公司 | The steam turbine generator suit oil-piping half oil outer circulatory system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864621A (en) * | 2016-06-15 | 2016-08-17 | 武汉钢铁股份有限公司 | Oil supply device and method |
| CN110319336A (en) * | 2018-03-29 | 2019-10-11 | 上海梅山钢铁股份有限公司 | Blast furnace blower lubricating oil emergency supplement pressure-retaining system |
| CN110319336B (en) * | 2018-03-29 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Emergency lubricating oil supplementing and pressure maintaining system for blast furnace blower |
| CN113738675A (en) * | 2021-09-17 | 2021-12-03 | 南京磁谷科技股份有限公司 | Main motor air-cooled constant temperature system of magnetic suspension air compressor |
| CN114198162A (en) * | 2021-11-30 | 2022-03-18 | 天津国能津能热电有限公司 | Oil supply device for bearing box of steam turbine |
| CN114198162B (en) * | 2021-11-30 | 2023-06-23 | 天津国能津能热电有限公司 | Oil supply device for bearing box of steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104879173B (en) | 2016-09-28 |
| CN104533546A (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104879173B (en) | The standby fueller of Generator Set main shaft bearing lubricating system | |
| EP0121392A2 (en) | Method and means for peaking or peak power shaving | |
| CN101463765A (en) | Turbine control system | |
| CN109340544A (en) | The pressure oil tank oil supply system of large-size horizontal sliding bearing | |
| CN106121743B (en) | A kind of liquid radial-inward-flow turbine energy recycle device | |
| CN105485166A (en) | Oil supplementing system used for dynamic and static pressure bearing of grinding machine | |
| CN202402087U (en) | Jacking system of steam turbine rotor | |
| CN104989468A (en) | Turbine oil feeding system with centrifugal oil pump | |
| CN104088726A (en) | Novel vehicle-mounted natural gas supply system and stable gas supply method thereof | |
| CN102518487B (en) | Turbine rotor ejecting shaft system and emergency oil supplying method | |
| CN111412026A (en) | Lubricating oil supply system allowing DC accident oil pump motor to be started slowly | |
| CN208168939U (en) | A kind of small machine lubrication oil supply system | |
| CN207145021U (en) | A kind of steam-turbine lubrication EFM Electronic Fuel Management for the production of vanadium ferrotianium | |
| CN206299414U (en) | The self-holding type turbo-engine lube oil supply system of pressure | |
| CN202851092U (en) | Circulating water start-up system of steam turbine | |
| CN105649874A (en) | Megawatt offshore wind generator redundancy hydraulic system and method based on modularization | |
| CN203176383U (en) | Double-seal turbine water inlet butterfly valve and double-seal turbine water inlet valve system | |
| CN204851344U (en) | Steam turbine oil feeding system with centrifugal oil pump | |
| CN211202070U (en) | Lubricating oil supply system allowing DC accident oil pump motor to be started slowly | |
| CN107420137B (en) | Gas turbine rotor displacement adjustment system and adjustment method | |
| CN211202067U (en) | Energy-saving turbine EH oil station | |
| CN205349429U (en) | Small -size turbo generator starts raising speed controlling means | |
| CN102400786B (en) | Oil varnish mitigation systems | |
| CN206190335U (en) | Steam turbine emergency trip system | |
| CN217872949U (en) | Jacking oil device for power plant maintenance |
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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20210428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |