CN203879555U - Steam turbine vibration protection device - Google Patents
Steam turbine vibration protection device Download PDFInfo
- Publication number
- CN203879555U CN203879555U CN201420226844.3U CN201420226844U CN203879555U CN 203879555 U CN203879555 U CN 203879555U CN 201420226844 U CN201420226844 U CN 201420226844U CN 203879555 U CN203879555 U CN 203879555U
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- CN
- China
- Prior art keywords
- vibration
- bearing
- steam turbine
- protection
- shaft
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of energy power, and relates to a steam turbine vibration protection device. According to the technical scheme, the steam turbine vibration protection device comprises a shaft vibration monitoring and protecting circuit and is characterized in that a TSI vibration alarming relay is connected in front of a tripping relay on the shaft vibration monitoring and protecting circuit in series to form a bearing vibration monitoring and protecting circuit is formed, a bearing vibration protection operating value X direction or a vibration alarming value Y direction in the other direction of a current bearing is met, the bearing vibration protection operating value X direction or a vibration alarming value X direction in the same direction of a bearing adjacent to the current bearing is met and then the bearing vibration protection operating value X direction and the vibration alarming value X direction in the same direction of the bearing adjacent to the current bearing are both met, and then output is conducted and a steam turbine is tripped. The steam turbine vibration protection device has the advantages that through the technology, protection maloperation generated due to the fact that field interference signals make a certain shaft vibrate and change abruptly can be avoided, reliable motion can be achieved when vibration is high under the verification of signals in the other direction of the current shaft and signals of the same direction of a shaft adjacent to the current shaft, in order to avoid the interference signals, 1S time relay is conducted on a TSI with protection action signals and then the TSI enters an ETS to be tripped, and therefore reliability of protection tripping output is guaranteed, and instantaneous interference signals can be shielded.
Description
Technical field
This model utility belongs to electricity power field, relates to electricity power enterprise's turbine vibration supervision device.
Background technique
Current existing electricity power enterprise, Steam Turbine Vibration be only provided with axle shake (Relative Vibration) monitoring with protection, the protection of watt shaking is not set, existing mounting type is for each bearing place installing X, two axles of Y-direction probe that shakes, have 8 bearings, each bearing single vibration value transfinites the large protection action of vibration occurs, and turbine vibration supervision is by the public protective relay after TSI device, to deliver to ETS System of Steam Turbine steam turbine is carried out to emergency trip; There is single-point protection hidden danger in unit main protection, cannot prevent that steam turbine protection mistake action and rejecting action from occurring, and easily avoids causing fatal crass's serious consequence.
Model utility content
The purpose of this utility model is to meet country to 25 countermeasure regulations of electric power enterprise, eliminates and guarantees Turbine Safety stable operation, prevents a kind of turbine vibration supervision device that steam turbine protection mistake action and rejecting action occurs.
Technological scheme: comprise axle shake monitoring and protective circuit; it is characterized in that: at shake monitoring and the TSI vibration alarming relay of connecting before tripping relay in protective circuit of axle, form watt to shake and monitor and protective circuit; watt vibration protection working value X-direction and Ben Wa other direction vibration alarming value Y-direction phase with; watt vibration protection working value X-direction and adjacent watt of equidirectional vibration alarming value X-direction phase with mutually or, rear output tripping operation steam turbine.
Beneficial effect: the protection malfunction that this technology can avoid on-the-spot undesired signal that a certain shaft vibration sudden change is caused; again can vibration when large by this axle other direction and adjacent shaft action message under the confirmation of signal in the same way; for preventing undesired signal; in the TSI of protection actuating signal, carry out entering in ETS and tripping again after 1S time delay; so, the reliability that has guaranteed trip protection output, can mask instantaneous undesired signal again.
Accompanying drawing explanation:
Accompanying drawing 1 is that this take 2 watts of theory diagrams that X-direction is example;
Accompanying drawing 2 is electric hookups of protection device for installing on 8 bearings, in figure XJJ YJJ be newly-increased TSI vibration alarming relay auxiliary contact, XTJ/YTJ is former tripping relay.
Embodiment
With reference to accompanying drawing 1,2; comprise axle shake monitoring and protective circuit; at shake monitoring and the TSI vibration alarming relay of connecting before tripping relay in protective circuit of axle, form watt to shake and monitor and protective circuit; watt vibration protection working value X-direction and Ben Wa other direction vibration alarming value Y-direction phase with; watt vibration protection working value X-direction and adjacent watt of equidirectional vibration alarming value X-direction phase with mutually or, rear output tripping operation steam turbine.
Accompanying drawing 1 explanation: for example 2 watts of vibrations, first: 2X working value reaches setting value with a same watt 2Y alarming value simultaneously; Second: 2X working value reaches setting value with coaxial 1X alarming value simultaneously; The 3rd: 2X working value reaches setting value with coaxial 3X alarming value simultaneously; As long as three conditions have a condition to meet, be the axle large chaser action output of shaking, tripping operation steam turbine.
The examination application on the Datang northern Shandong 2*330MW of Power Generation Corporation Ltd. unit of this technology, respond well, unit safety stable operation.
Claims (1)
1. turbine vibration supervision device; comprise axle shake monitoring and protective circuit; it is characterized in that: at shake monitoring and the TSI vibration alarming relay of connecting before tripping relay in protective circuit of axle, form watt to shake and monitor and protective circuit; watt vibration protection working value X-direction and Ben Wa other direction vibration alarming value Y-direction phase with; watt vibration protection working value X-direction and adjacent watt of equidirectional vibration alarming value X-direction phase with mutually or, rear output tripping operation steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226844.3U CN203879555U (en) | 2014-05-06 | 2014-05-06 | Steam turbine vibration protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420226844.3U CN203879555U (en) | 2014-05-06 | 2014-05-06 | Steam turbine vibration protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879555U true CN203879555U (en) | 2014-10-15 |
Family
ID=51680064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420226844.3U Expired - Fee Related CN203879555U (en) | 2014-05-06 | 2014-05-06 | Steam turbine vibration protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879555U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727866A (en) * | 2015-01-31 | 2015-06-24 | 浙江浙能中煤舟山煤电有限责任公司 | Control method for preventing trip accident caused by steam turbine steam-flow excited vibration |
| CN105840250A (en) * | 2016-05-03 | 2016-08-10 | 大唐东北电力试验研究所有限公司 | Vibration protecting device and method of steam-turbine generator set |
| CN111852577A (en) * | 2020-07-07 | 2020-10-30 | 大唐巩义发电有限责任公司 | Air pump vibration protection device and protection method thereof |
| CN111852577B (en) * | 2020-07-07 | 2024-05-14 | 大唐巩义发电有限责任公司 | Pump vibration protection device and protection method thereof |
-
2014
- 2014-05-06 CN CN201420226844.3U patent/CN203879555U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727866A (en) * | 2015-01-31 | 2015-06-24 | 浙江浙能中煤舟山煤电有限责任公司 | Control method for preventing trip accident caused by steam turbine steam-flow excited vibration |
| CN104727866B (en) * | 2015-01-31 | 2016-07-06 | 浙江浙能中煤舟山煤电有限责任公司 | The control method of the chaser accident that prevention Steam Flow Excited Vibration on Steam Turbine causes |
| CN105840250A (en) * | 2016-05-03 | 2016-08-10 | 大唐东北电力试验研究所有限公司 | Vibration protecting device and method of steam-turbine generator set |
| CN111852577A (en) * | 2020-07-07 | 2020-10-30 | 大唐巩义发电有限责任公司 | Air pump vibration protection device and protection method thereof |
| CN111852577B (en) * | 2020-07-07 | 2024-05-14 | 大唐巩义发电有限责任公司 | Pump vibration protection device and protection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141015 Termination date: 20180506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |