CN103899368A - ETS protection system in steam turbine emergent interruption protection - Google Patents
ETS protection system in steam turbine emergent interruption protection Download PDFInfo
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- CN103899368A CN103899368A CN201410166122.8A CN201410166122A CN103899368A CN 103899368 A CN103899368 A CN 103899368A CN 201410166122 A CN201410166122 A CN 201410166122A CN 103899368 A CN103899368 A CN 103899368A
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Abstract
The invention discloses an ETS protection system in steam turbine emergent interruption protection, and relates to the technical field of steam turbine emergent interruption protection. The problem that in existing steam turbine emergent interruption protection, a hydraulic control system oil protection system, a condenser vacuum protection system and a lubricating oil protection system have the cross interaction, cross maloperation is prone to being caused, and therefore tripping of a unit is caused is solved. By means of the ETS protection system, the logical relationship in the ETS protection system is improved, the improved protection system can give out a tripping signal only when two channels for the condenser vacuum pressure, the hydraulic control system oil pressure or the lubricating oil pressure simultaneously move to give an alarm, and the cross maloperation is accordingly avoided. The ETS protection system is suitable for steam turbine emergent interruption protection.
Description
Technical field
The present invention relates to steam turbine crisis blocking resist technology field.
Background technique
In existing ETS protective system (steam turbine trip protection system); lubrication pressure, condenser vacuum are pressed, EH (oil for hydraulic control system) oil pressure adopts the guard method of " Twin channel two gets " conventionally; but while adopting this guard method, usually there is the generation of intersection maloperation situation.
Summary of the invention
The present invention exists intersection interaction to do in order to solve in existing steam turbine crisis blocking protection between Oil protective system, condenser vacuum protective system and oil protection system three for hydraulic control system; easily there is to intersect malfunction; cause the problem of unit tripping, proposed the ETS protective system in steam turbine crisis blocking protection.
ETS protective system in steam turbine crisis blocking protection; it comprises four Condenser Vacuum Pressure sensors, four hydraulic control systems oil pressure sensor, four lubricant pressure sensors, four tripping electromagnetic valves, first or door, second or door, the 3rd or door, the 4th or door, the 5th or door, the 6th or door, the 7th or door and the 8th or door; it is characterized in that; it also comprise first with door, second with door and the 3rd with
Any two Condenser Vacuum Pressure sensors in described four Condenser Vacuum Pressure sensors respectively with first or door first input end and the second input end be connected,
First or door output terminal with first with first input end be connected,
Other two Condenser Vacuum Pressure sensors in four Condenser Vacuum Pressure sensors respectively with second or door first input end and the second input end be connected,
Second or door output terminal with first with the second input end be connected,
First with the output terminal of door simultaneously with the 7th or the first input end of door and the 8th or the first input end of door be connected,
Described four hydraulic control systems are connected with the 3rd or first input end and second input end of door respectively with any two hydraulic control systems oil pressure sensor in oil pressure sensor,
The 3rd or door output terminal with second with first input end be connected,
Four hydraulic control systems are connected with the 4th or first input end and second input end of door respectively with other two hydraulic control systems oil pressure sensors in oil pressure sensors,
The 4th or door output terminal with second with the second input end be connected,
Second with the output terminal of door simultaneously with the 7th or the second input end of door and the 8th or the second input end of door be connected,
Any two lubricant pressure sensors in described four lubricant pressure sensors respectively with the 5th or door first input end and the second input end be connected,
The 5th or door output terminal with the 3rd with first input end be connected,
Other two lubricant pressure sensors in four lubricant pressure sensors respectively with the 6th or door first input end and the second input end be connected,
The 6th or door output terminal with the 3rd with the second input end be connected,
The 3rd with the output terminal of door simultaneously with the 7th or the 3rd input end of door and the 8th or the 3rd input end of door be connected,
The 7th or the output terminal of door be connected with the input end of any two tripping electromagnetic valves in described four tripping electromagnetic valves simultaneously,
The 8th or the output terminal of door be connected with the input end of other two tripping electromagnetic valves in described four tripping electromagnetic valves simultaneously.
Beneficial effect: the present invention is by improving the logical relation in ETS protective system; protective system after improvement is only in the time that Condenser Vacuum Pressure, hydraulic control system are moved warning with two passages of oil pressure or lubricating oil pressure simultaneously; can send trip signal, avoid intersecting the generation of malfunction thereby realized.
Brief description of the drawings
Fig. 1 is the electrical connection schematic diagram of the ETS protective system in the steam turbine crisis blocking protection described in embodiment one.
Embodiment
Embodiment one, in conjunction with Fig. 1, this embodiment is described; ETS protective system in steam turbine crisis described in this embodiment blocking protection comprises four Condenser Vacuum Pressure sensors, four hydraulic control system oil pressure sensors, four lubricant pressure sensors, four tripping electromagnetic valves, first or door 13, second or door 14, the 3rd or door 15, the 4th or door 16, the 5th or door 17, the 6th or door 18, the 7th or door 22 and the 8th or door 23; it also comprise first with door 19, second with door 20 and the 3rd and 21
Any two Condenser Vacuum Pressure sensors in described four Condenser Vacuum Pressure sensors are connected with first or door 13 first input end and the second input end respectively,
First or door 13 output terminal be connected with 19 first input end with first,
Other two Condenser Vacuum Pressure sensors in four Condenser Vacuum Pressure sensors are connected with second or door 14 first input end and the second input end respectively,
Second or door 14 output terminal be connected with the second input end of 19 with first,
First with door 19 output terminal simultaneously with the 7th or the first input end of door 22 and the 8th or the first input end of door 23 be connected,
Described four hydraulic control systems are connected with the 3rd or first input end and second input end of door 15 respectively with any two hydraulic control systems oil pressure sensor in oil pressure sensor,
The 3rd or door 15 output terminal be connected with 20 first input end with second,
Four hydraulic control systems are connected with the 4th or first input end and second input end of door 16 respectively with other two hydraulic control systems oil pressure sensors in oil pressure sensors,
The 4th or door 16 output terminal be connected with the second input end of 20 with second,
Second with door 20 output terminal simultaneously with the 7th or the second input end of door 22 and the 8th or the second input end of door 23 be connected,
Any two lubricant pressure sensors in described four lubricant pressure sensors are connected with the 5th or door 17 first input end and the second input end respectively,
The 5th or door 17 output terminal be connected with 21 first input end with the 3rd,
Other two lubricant pressure sensors in four lubricant pressure sensors are connected with the 6th or door 18 first input end and the second input end respectively,
The 6th or door 18 output terminal be connected with the second input end of 21 with the 3rd,
The 3rd with door 21 output terminal simultaneously with the 7th or the 3rd input end of door 22 and the 8th or the 3rd input end of door 23 be connected,
The 7th or door 22 output terminal be connected with the input end of any two tripping electromagnetic valves in described four tripping electromagnetic valves simultaneously,
The 8th or door 23 output terminal be connected with the input end of other two tripping electromagnetic valves in described four tripping electromagnetic valves simultaneously.
The present invention is by improving the logical relation in ETS protective system; protective system after improvement is only in the time that Condenser Vacuum Pressure, hydraulic control system are moved warning with two passages of oil pressure or lubricating oil pressure simultaneously; can send trip signal, avoid intersecting the generation of malfunction thereby realized.
Claims (1)
1. the ETS protective system in steam turbine crisis blocking protection, it comprises four Condenser Vacuum Pressure sensors, four hydraulic control system oil pressure sensors, four lubricant pressure sensors, four tripping electromagnetic valves, first or door (13), second or door (14), the 3rd or door (15), the 4th or door (16), the 5th or door (17), the 6th or door (18), the 7th or door (22) and the 8th or (23), it is characterized in that, it also comprise first with door (19), second with door (20) and the 3rd with (21),
Any two Condenser Vacuum Pressure sensors in described four Condenser Vacuum Pressure sensors respectively with first or door (13) first input end and the second input end be connected,
First or the output terminal of door (13) be connected with the first input end of (19) with first,
Other two Condenser Vacuum Pressure sensors in four Condenser Vacuum Pressure sensors respectively with second or door (14) first input end and the second input end be connected,
Second or the output terminal of door (14) be connected with second input end of (19) with first,
First with the output terminal of door (19) simultaneously with the 7th or the first input end of door (22) and the 8th or the first input end of door (23) be connected,
Described four hydraulic control systems are connected with the 3rd or first input end and second input end of door (15) respectively with any two hydraulic control systems oil pressure sensor in oil pressure sensor,
The 3rd or the output terminal of door (15) be connected with the first input end of (20) with second,
Four hydraulic control systems are connected with the 4th or first input end and second input end of door (16) respectively with other two hydraulic control systems oil pressure sensors in oil pressure sensors,
The 4th or the output terminal of door (16) be connected with second input end of (20) with second,
Second with the output terminal of door (20) simultaneously with the 7th or the second input end of door (22) and the 8th or the second input end of door (23) be connected,
Any two lubricant pressure sensors in described four lubricant pressure sensors respectively with the 5th or door (17) first input end and the second input end be connected,
The 5th or the output terminal of door (17) be connected with the first input end of (21) with the 3rd,
Other two lubricant pressure sensors in four lubricant pressure sensors respectively with the 6th or door (18) first input end and the second input end be connected,
The 6th or the output terminal of door (18) be connected with second input end of (21) with the 3rd,
The 3rd with the output terminal of door (21) simultaneously with the 7th or the 3rd input end of door (22) and the 8th or the 3rd input end of door (23) be connected,
The 7th or the output terminal of door (22) be connected with the input end of any two tripping electromagnetic valves in described four tripping electromagnetic valves simultaneously,
The 8th or the output terminal of door (23) be connected with the input end of other two tripping electromagnetic valves in described four tripping electromagnetic valves simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166122.8A CN103899368A (en) | 2014-04-23 | 2014-04-23 | ETS protection system in steam turbine emergent interruption protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166122.8A CN103899368A (en) | 2014-04-23 | 2014-04-23 | ETS protection system in steam turbine emergent interruption protection |
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| Publication Number | Publication Date |
|---|---|
| CN103899368A true CN103899368A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410166122.8A Pending CN103899368A (en) | 2014-04-23 | 2014-04-23 | ETS protection system in steam turbine emergent interruption protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569749A (en) * | 2016-02-04 | 2016-05-11 | 华润电力（涟源）有限公司 | Automatic vacuum protection executing method and system of steam turbine |
Citations (4)
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| JPH04104305A (en) * | 1990-08-23 | 1992-04-06 | Nec Corp | Remote operation system for numerically controlled equipment |
| JPH0519839A (en) * | 1991-07-15 | 1993-01-29 | Meidensha Corp | Numerical control group control system |
| CN101737100A (en) * | 2009-12-28 | 2010-06-16 | 国电南京自动化股份有限公司 | Turbine emergency protective system capable of preventing misoperation |
| CN203321600U (en) * | 2013-05-30 | 2013-12-04 | 大唐甘谷发电厂 | Electromagnetic valve control loop |
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2014
- 2014-04-23 CN CN201410166122.8A patent/CN103899368A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04104305A (en) * | 1990-08-23 | 1992-04-06 | Nec Corp | Remote operation system for numerically controlled equipment |
| JPH0519839A (en) * | 1991-07-15 | 1993-01-29 | Meidensha Corp | Numerical control group control system |
| CN101737100A (en) * | 2009-12-28 | 2010-06-16 | 国电南京自动化股份有限公司 | Turbine emergency protective system capable of preventing misoperation |
| CN203321600U (en) * | 2013-05-30 | 2013-12-04 | 大唐甘谷发电厂 | Electromagnetic valve control loop |
Non-Patent Citations (3)
| Title |
|---|
| 安一鑫: "上汽ETS系统故障分析", 《科技传播》, 23 December 2012 (2012-12-23), pages 89 - 90 * |
| 宋益纯等: "汽轮机紧急跳闸保护系统纳入DCS系统的可靠性分析及优化方案", 《山东电机工程学会第六届发电专业学术交流会论文集》, 1 August 2007 (2007-08-01), pages 1 - 6 * |
| 王丽平: "二期2*300MW机组ETS系统存在的问题及对策", 《2010年全国发电厂热工自动化专业会议论文集》, 1 July 2010 (2010-07-01), pages 1680 - 1686 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569749A (en) * | 2016-02-04 | 2016-05-11 | 华润电力（涟源）有限公司 | Automatic vacuum protection executing method and system of steam turbine |
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Application publication date: 20140702 |