CN102003226A - Turbine bearing lubricating oil supply system - Google Patents
Turbine bearing lubricating oil supply system Download PDFInfo
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- CN102003226A CN102003226A CN2010105860326A CN201010586032A CN102003226A CN 102003226 A CN102003226 A CN 102003226A CN 2010105860326 A CN2010105860326 A CN 2010105860326A CN 201010586032 A CN201010586032 A CN 201010586032A CN 102003226 A CN102003226 A CN 102003226A
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Abstract
The invention discloses a turbine bearing lubricating oil supply system which comprises a main oil pump, an oil ejector and a DC horizontal oil pump, wherein the oil inlet of the main oil pump is connected with the oil outlet of the oil ejector through a first check valve; the oil outlet of the main oil pump is connected with the oil inlet of the oil ejector; the oil outlet of the oil ejector is also connected with an oil inlet pipe of a bearing through an oil cooler; the oil inlet of the oil ejector is connected with an oil tank; the oil inlet pipe of the DC horizontal oil pump is inserted to the bottom of the oil tank; the oil outlet pipe of the DC horizontal oil pump is communicated with the oil inlet pipe of the bearing through a second check valve; and a first pressure switch is arranged between the DC horizontal oil pump and the second check valve. When the main oil pump and the oil ejector can not supply oil to the oil inlet pipe of the bearing due to accidents, the turbine bearing lubricating oil supply system can ensure uninterrupted oil supply in the oil inlet pipe of the bearing, thereby ensuring the bearing lubrication of the turbine, avoiding burning the bearing bush and ensuring the normal operation of the turbine.
Description
Technical field
The present invention relates to steam turbine, particularly the bearing oil oil supply system on the steam turbine.
Background technique
In the turbine work process, in order to guarantee steamer function proper functioning, usually need be to the bearing part input lubricant oil of steam turbine, the oil supply system of turbo-engine lube mainly comprises main oil pump and oil gun at present, the import of main oil pump is connected with the outlet of oil gun by a check valve, the outlet of main oil pump is connected with the import of oil gun, the outlet of main oil pump also seals standby oil pipe by a check valve and generator and is connected, oil gun is positioned at fuel tank, and the outlet of oil gun also is connected with the oil inlet pipe of bearing by oil cooler.Oil gun is made up of nozzle, mixing chamber, throat and diffuser basically.Nozzle inlet links to each other with the main oil pump outlet that power oil is provided, and diffuser is connected with the import of main oil pump and the import of oil cooler by check valve.
This oil supply system is when work, and oil at first arrives mixing chamber by nozzle in oil gun, enter oil gun throat then, enters diffuser at last.When oil passes through nozzle, the speed of oil increases, when this high speed oil passes through mixing chamber, can in mixing chamber, produce a low pressure area, the import of oil gun will be with the oily suction mixing chamber in the fuel tank like this, brought into oil gun throat and enter diffuser by high speed oil then, enter the main oil pump import by diffuser again or enter the oil filler pipe of bearing by oil cooler by throat.
This oil supply system the time often occurs that the oil cooler switching valve can't be finished normal switching, the filter screen group is stopped up or in phenomenons such as lubrication pressure reductions in work, make the pouring orifice oiling in time of bearing, the phenomenon of tile kilning just appears in the bearing of steam turbine easily like this, influences the use of steam turbine.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention provides a kind of bearing oil oil supply system that can effectively avoid the steam turbine bearing tile kilning.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of steam turbine bearing lubrication oil oil supply system, comprise a main oil pump and an oil gun, the filler opening of described main oil pump is connected with the oil outlet of described oil gun by first check valve, the oil outlet of described main oil pump is connected with the filler opening of described oil gun, the oil outlet of described oil gun also is connected with the oil inlet pipe of bearing by described first check valve and an oil cooler, the filler opening of described oil gun is connected with fuel tank, it also comprises the horizontal oil pump of a direct current, the oil inlet pipe of the horizontal oil pump of described direct current is inserted in the bottom of described fuel tank, the oil outlet tube of the horizontal oil pump of described direct current is communicated with the oil inlet pipe of described bearing by second check valve, is provided with first pressure switch between the horizontal oil pump of described direct current and second check valve.
Preferably, comprise that also one exchanges the bearing lubricating oil pump, the oil inlet pipe of described interchange bearing lubricating oil pump is inserted in the described fuel tank, the oil outlet tube of described interchange bearing lubricating oil pump is connected with the filler opening of described oil cooler by the 3rd check valve, is provided with second pressure switch between described interchange bearing lubricating oil pump and described the 3rd check valve.
Preferably; also comprise a direct current crisis lubricating oil pump; the oil inlet pipe of described direct current crisis lubricating oil pump is inserted in the described fuel tank; the oil outlet tube of described direct current crisis lubricating oil pump is connected with the filler opening of described oil cooler by the 4th check valve, is provided with the 3rd pressure switch between described direct current crisis lubricating oil pump and described the 4th check valve.
Preferably, the oil outlet of described main oil pump also is connected with the standby oil pipe of the sealing of turbine generator by the 5th check valve, also be provided with a hydrogen-tight stand by pump on the described fuel tank, described hydrogen-tight stand by pump oil inlet pipe is inserted in the described fuel tank, and the oil outlet tube of described hydrogen-tight stand by pump is connected with the standby oil pipe of the sealing of described turbine generator by the 6th check valve.
Technique scheme has following beneficial effect: the steam turbine bearing lubrication oil oil supply system is provided with the horizontal oil pump of a direct current again outside main oil pump and oil gun, the oil outlet tube of the horizontal oil pump of direct current is communicated with the oil inlet pipe of bearing by second check valve, like this when main oil pump and oil gun because fortuitous event can not give the oil inlet pipe oil-feed of bearing the time, first pressure switch on the horizontal oil pump of direct current and second check valve is opened owing to oil pressure reduces, the horizontal oil pump work of direct current is to the oil inlet pipe fuel feeding of bearing, thereby guarantee the bearing lubrication of steam turbine, avoid the bearing tile kilning, guarantee the steam turbine proper functioning.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail.
As shown in Figure 1, this steam turbine bearing lubrication oil oil supply system comprises main oil pump 2, oil gun 3, exchanges bearing lubricating oil pump 5, direct current crisis lubricating oil pump 7 and the horizontal oil pump 9 of direct current.The filler opening of main oil pump 2 is connected with the oil outlet of oil gun 3 by first check valve 4, the oil outlet of main oil pump 2 is connected with the filler opening of oil gun 3, the oil outlet of oil gun 3 also is connected with the oil inlet pipe 15 of bearing by first check valve 4, oil cooler 14, and the filler opening of oil gun 3 is connected with fuel tank 1 by pipeline.
The oil inlet pipe that exchanges bearing lubricating oil pump 5 is inserted in the fuel tank 1, and the oil outlet tube that exchanges bearing lubricating oil pump 5 is connected with the filler opening of oil cooler 14 by the 3rd check valve 6, exchanges between bearing lubricating oil pump 5 and the 3rd check valve 6 and is provided with the second pressure switch (not shown).
The oil inlet pipe of direct current crisis lubricating oil pump 7 is inserted in the fuel tank 1, and the oil outlet tube of direct current crisis lubricating oil pump 7 is connected with the filler opening of oil cooler 14 by the 4th check valve 8, is provided with the 3rd pressure switch (not shown) between direct current crisis lubricating oil pump 7 and the 4th check valve 8.
The horizontal oil pump 9 of direct current is positioned at the outside of fuel tank 1, the oil inlet pipe of the horizontal oil pump 9 of direct current is inserted in the bottom of fuel tank 1, the oil outlet tube of the horizontal oil pump 9 of direct current is communicated with the oil inlet pipe 15 of bearing by second check valve 10, is provided with the first pressure switch (not shown) between the horizontal oil pump of direct current and second check valve.
The force value of the setting of second pressure switch, the 3rd pressure switch, first pressure switch reduces successively, and manual control can be controlled or adopt to above-mentioned three pressure switches all automatically.
This steam turbine bearing lubrication oil oil supply system is when work, and is normal as the pressure of main oil pump 2, and 15 of the oil inlet pipes of bearing are main by oil gun 3 fuel feeding; When bearing oil pressure dropped to 0.0758～0.0827MPa (g), the action of second pressure switch exchanged 5 startings of bearing lubricating oil pump by oil inlet pipe 15 fuel feeding of oil cooler 14 to bearing, makes the desirable value that returns to of bearing oil pressure; Continue to drop to 0.0689～0.0758MPa (g) as bearing oil pressure, then the 3rd pressure switch action, 7 startings of direct current crisis lubricating oil pump make the desirable value that returns to of bearing oil pressure by oil inlet pipe 15 fuel feeding of oil cooler 14 to bearing.Descend as oil pressure continuation this moment, illustrate that oil cooler 14 may break down in handoff procedure, then first pressure switch action this moment, direct oil inlet pipe 15 fuel feeding of horizontal oil pump 9 startings of direct current to bearing.
This shows; by the action successively of above-mentioned interchange bearing lubricating oil pump 5, direct current crisis lubricating oil pump 7, the horizontal oil pump 9 of direct current, the oil inlet pipe 15 that can guarantee bearing is oil-break not, and then can guarantee that bearing is lubricated constantly; avoid occurring the phenomenon of tile kilning, guarantee the steam turbine proper functioning.Direct current crisis lubricating oil pump 7, the horizontal oil pump 9 of direct current can be used storage battery power supply, even occurring also guaranteeing the proper functioning of steam turbine under the situation of cutting off the power supply like this.
The oil outlet of this main oil pump 2 also is connected with the standby oil pipe 16 of the sealing of turbine generator by the 5th check valve 13, main oil pump 2 promptly can be used to standby oil pipe 16 fuel feeding of turbine generator sealing oil like this, the standby oil pipe oil-break of turbine generator sealing oil when preventing that main oil pump 2 from can not satisfy the needs of high pressure sealing oil, also be provided with a hydrogen-tight stand by pump 11 on the fuel tank 1, hydrogen-tight stand by pump 11 oil inlet pipes are inserted in the fuel tank 1, the oil outlet tube of hydrogen-tight stand by pump 11 is connected with the standby oil pipe 16 of the sealing of turbine generator by the 6th check valve 12, like this when main oil pump 2 can not satisfy the needs of high pressure sealing oil (being applicable to hydrogen cooled generator), hydrogen-tight stand by pump 11 can work on to the standby oil pipe fuel feeding of generator sealing oil, guarantee not oil-break of the standby oil pipe of generator sealing oil, and then guarantee its sustainable normal work.Above-mentioned check valve can avoid the oil in the oil pipe to flow backwards.
The steam turbine bearing lubrication oil oil supply system is provided with and exchanges bearing lubricating oil pump 5, direct current crisis lubricating oil pump 7 and the horizontal oil pump 9 of direct current; each oil pump can move according to different bearing oil pressures; oil inlet pipe to bearing carries out fuel feeding; thereby make not oil-break of bearing; guarantee that bearing is lubricated constantly; avoid bearing the phenomenon of tile kilning to occur, but guarantee the steam turbine proper functioning.
More than the steam turbine bearing lubrication oil oil supply system that the embodiment of the invention provided is described in detail; this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. steam turbine bearing lubrication oil oil supply system, comprise a main oil pump and an oil gun, the filler opening of described main oil pump is connected with the oil outlet of described oil gun by first check valve, the oil outlet of described main oil pump is connected with the filler opening of described oil gun, the oil outlet of described oil gun also is connected with the oil inlet pipe of bearing by described first check valve and an oil cooler, the filler opening of described oil gun is connected with fuel tank, it is characterized in that: it also comprises the horizontal oil pump of a direct current, the oil inlet pipe of the horizontal oil pump of described direct current is inserted in the bottom of described fuel tank, the oil outlet tube of the horizontal oil pump of described direct current is communicated with the oil inlet pipe of described bearing by second check valve, is provided with first pressure switch between the horizontal oil pump of described direct current and second check valve.
2. steam turbine bearing lubrication oil oil supply system according to claim 1, it is characterized in that: comprise that also one exchanges the bearing lubricating oil pump, the oil inlet pipe of described interchange bearing lubricating oil pump is inserted in the described fuel tank, the oil outlet tube of described interchange bearing lubricating oil pump is connected with the filler opening of described oil cooler by the 3rd check valve, is provided with second pressure switch between described interchange bearing lubricating oil pump and described the 3rd check valve.
3. steam turbine bearing lubrication oil oil supply system according to claim 1; it is characterized in that: also comprise a direct current crisis lubricating oil pump; the oil inlet pipe of described direct current crisis lubricating oil pump is inserted in the described fuel tank; the oil outlet tube of described direct current crisis lubricating oil pump is connected with the filler opening of described oil cooler by the 4th check valve, is provided with the 3rd pressure switch between described direct current crisis lubricating oil pump and described the 4th check valve.
4. steam turbine bearing lubrication oil oil supply system according to claim 1, it is characterized in that: the oil outlet of described main oil pump also is connected with the standby oil pipe of the sealing of turbine generator by the 5th check valve, also be provided with a hydrogen-tight stand by pump on the described fuel tank, described hydrogen-tight stand by pump oil inlet pipe is inserted in the described fuel tank, and the oil outlet tube of described hydrogen-tight stand by pump is connected with the standby oil pipe of the sealing of described turbine generator by the 6th check valve.
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| CN2010105860326A CN102003226A (en) | 2010-12-13 | 2010-12-13 | Turbine bearing lubricating oil supply system |
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| CN2010105860326A CN102003226A (en) | 2010-12-13 | 2010-12-13 | Turbine bearing lubricating oil supply system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518487A (en) * | 2011-11-09 | 2012-06-27 | 中国神华能源股份有限公司 | Turbine rotor ejecting shaft system and emergency oil supplying method |
| CN103075210A (en) * | 2012-12-27 | 2013-05-01 | 大唐桂冠合山发电有限公司 | Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device |
| CN104234760A (en) * | 2014-07-24 | 2014-12-24 | 江苏永钢集团有限公司 | Start control method of direct-current oil pump of a gas generator unit |
| CN104456518A (en) * | 2014-12-29 | 2015-03-25 | 东方电气集团东方汽轮机有限公司 | Wet and cold steam turbine generator unit lubricating oil heat recovery and utilization method |
| CN104863648A (en) * | 2015-06-02 | 2015-08-26 | 济南达能动力技术有限责任公司 | Steam-driven lubricating oil pump emergency oil supply system and method thereof |
| CN105909961A (en) * | 2016-06-24 | 2016-08-31 | 江苏江海润液设备有限公司 | Lubricating system with multiple emergency functions and controlling method thereof |
| CN106968874A (en) * | 2017-05-31 | 2017-07-21 | 国家电网公司 | Generator motor hydraulic oil jacking system control method |
| CN109026203A (en) * | 2018-10-26 | 2018-12-18 | 山东南山铝业股份有限公司 | A kind of oil supply system of turbo-engine lube and the lube plant of gas turbine |
| CN109779702A (en) * | 2019-03-29 | 2019-05-21 | 中国船舶重工集团公司第七0四研究所 | The highly integrated steam turbine bearing holder structure of oil circuit |
| CN111981956A (en) * | 2020-07-21 | 2020-11-24 | 东方电气集团东方电机有限公司 | Device and method for factory testing of parallelism of bearing of steam turbine generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014657U (en) * | 1983-07-08 | 1985-01-31 | 株式会社日立製作所 | Shaft seal oil pressure drop prevention device |
| JPH07332016A (en) * | 1994-06-06 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Automatic bypass oil feeding line for bearing protection |
| EP1389671A2 (en) * | 2002-08-14 | 2004-02-18 | ROLLS-ROYCE plc | A lubrication system |
| CN201326421Y (en) * | 2008-12-10 | 2009-10-14 | 上海电气电站设备有限公司 | Steam turbine lubricating oil supply device |
| CN201428481Y (en) * | 2009-05-19 | 2010-03-24 | 自贡东方过滤设备制造有限公司 | Packaging and lubricating device of steam turbine |
| WO2010095679A1 (en) * | 2009-02-18 | 2010-08-26 | 株式会社東芝 | Lubricating oil system |
-
2010
- 2010-12-13 CN CN2010105860326A patent/CN102003226A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6014657U (en) * | 1983-07-08 | 1985-01-31 | 株式会社日立製作所 | Shaft seal oil pressure drop prevention device |
| JPH07332016A (en) * | 1994-06-06 | 1995-12-19 | Mitsubishi Heavy Ind Ltd | Automatic bypass oil feeding line for bearing protection |
| EP1389671A2 (en) * | 2002-08-14 | 2004-02-18 | ROLLS-ROYCE plc | A lubrication system |
| CN201326421Y (en) * | 2008-12-10 | 2009-10-14 | 上海电气电站设备有限公司 | Steam turbine lubricating oil supply device |
| WO2010095679A1 (en) * | 2009-02-18 | 2010-08-26 | 株式会社東芝 | Lubricating oil system |
| CN201428481Y (en) * | 2009-05-19 | 2010-03-24 | 自贡东方过滤设备制造有限公司 | Packaging and lubricating device of steam turbine |
Non-Patent Citations (1)
| Title |
|---|
| 刘登军等: "一起汽轮机交流润滑油泵异常联启的原因分析", 《电站辅机》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518487B (en) * | 2011-11-09 | 2014-10-22 | 中国神华能源股份有限公司 | Turbine rotor ejecting shaft system and emergency oil supplying method |
| CN102518487A (en) * | 2011-11-09 | 2012-06-27 | 中国神华能源股份有限公司 | Turbine rotor ejecting shaft system and emergency oil supplying method |
| CN103075210A (en) * | 2012-12-27 | 2013-05-01 | 大唐桂冠合山发电有限公司 | Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device |
| CN104234760A (en) * | 2014-07-24 | 2014-12-24 | 江苏永钢集团有限公司 | Start control method of direct-current oil pump of a gas generator unit |
| CN104456518B (en) * | 2014-12-29 | 2017-01-11 | 东方电气集团东方汽轮机有限公司 | Wet and cold steam turbine generator unit lubricating oil heat recovery and utilization method |
| CN104456518A (en) * | 2014-12-29 | 2015-03-25 | 东方电气集团东方汽轮机有限公司 | Wet and cold steam turbine generator unit lubricating oil heat recovery and utilization method |
| CN104863648A (en) * | 2015-06-02 | 2015-08-26 | 济南达能动力技术有限责任公司 | Steam-driven lubricating oil pump emergency oil supply system and method thereof |
| CN105909961A (en) * | 2016-06-24 | 2016-08-31 | 江苏江海润液设备有限公司 | Lubricating system with multiple emergency functions and controlling method thereof |
| CN106968874A (en) * | 2017-05-31 | 2017-07-21 | 国家电网公司 | Generator motor hydraulic oil jacking system control method |
| CN109026203A (en) * | 2018-10-26 | 2018-12-18 | 山东南山铝业股份有限公司 | A kind of oil supply system of turbo-engine lube and the lube plant of gas turbine |
| CN109779702A (en) * | 2019-03-29 | 2019-05-21 | 中国船舶重工集团公司第七0四研究所 | The highly integrated steam turbine bearing holder structure of oil circuit |
| CN109779702B (en) * | 2019-03-29 | 2024-01-26 | 中国船舶重工集团公司第七0四研究所 | Turbine bearing seat structure with highly integrated oil circuit |
| CN111981956A (en) * | 2020-07-21 | 2020-11-24 | 东方电气集团东方电机有限公司 | Device and method for factory testing of parallelism of bearing of steam turbine generator |
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Application publication date: 20110406 |