CN104121044B - The method of controlling security of generator jumped by a kind of turbine emergency protector connection - Google Patents
The method of controlling security of generator jumped by a kind of turbine emergency protector connection Download PDFInfo
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- CN104121044B CN104121044B CN201410353454.7A CN201410353454A CN104121044B CN 104121044 B CN104121044 B CN 104121044B CN 201410353454 A CN201410353454 A CN 201410353454A CN 104121044 B CN104121044 B CN 104121044B
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- inlet throttle
- stop valve
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Abstract
The invention discloses the method for controlling security that generator jumped by a kind of turbine emergency protector connection, the generator comprise steam turbine, being controlled by generator comprehensive protector, the steam line being provided with main inlet throttle-stop valve fast valve be communicated with steam turbine, the emergency overspeed governor controlling steam turbine controls the opening and closing of main inlet throttle-stop valve fast valve by oil path control system; Comprise the following steps: (1) is first provided with to detect the sensor of main inlet throttle-stop valve fast valve on off state on main inlet throttle-stop valve fast valve, is connected by sensor with generator comprehensive protector; (2) clap emergency overspeed governor during steam turbine fault, emergency overspeed governor controls main inlet throttle-stop valve fast valve steam off pipeline, and steam turbine is quit work; (3) now sensor detects main inlet throttle-stop valve fast valve after steam off pipeline, and the signal of main inlet throttle-stop valve fast valve steam off pipeline is sent to generator comprehensive protector; (4), after generator comprehensive protector receives this signal, generator is stopped.The present invention has the high advantage of Safety performance.
Description
Technical field
The present invention relates to the method for controlling security that generator jumped by a kind of turbine emergency protector connection.
Background technique
Carry out in the electric power plant generated electricity at use steam turbine and generator, provide the steam line of steam to be connected with steam turbine by main inlet throttle-stop valve fast valve, steam turbine is connected with generator coaxle.When steam turbine fault, pressing emergency overspeed governor, emergency overspeed governor makes main inlet throttle-stop valve fast valve steam off pipeline by oil path control system, steam line is stopped to steam turbine steam supply, and then steam turbine is quit work, but emergency overspeed governor can not join stop jumping while being stopped by steam turbine stops generator; When steam turbine stop and generator simultaneously join stop jumping stop time, reverse-power in the generator can be caused protect, the time grown can cause electric substation to power station power supply line jumping electrification, the production safety for electric power plant has buried major hidden danger.
Summary of the invention
The object of this invention is to provide the method for controlling security that generator jumped by a kind of a kind of turbine emergency protector connection simultaneously closing steam turbine and generator when pressing emergency overspeed governor.
For achieving the above object; present invention employs following technological scheme: the method for controlling security of generator jumped by described a kind of turbine emergency protector connection; comprise the generator being controlled unlatching by generator comprehensive protector or closed; the steam turbine be connected with generator coaxle; and the steam line to be connected with steam turbine; steam line is provided with the main inlet throttle-stop valve fast valve that can open or close steam line; the emergency overspeed governor controlling steam turbine controls main inlet throttle-stop valve fast valve by oil path control system and opens or closes steam line, comprises the following steps:
(1) first the sensor detecting main inlet throttle-stop valve fast valve on off state is set on main inlet throttle-stop valve fast valve, sensor is connected with generator comprehensive protector;
(2) when steam turbine breaks down, pressing emergency overspeed governor, emergency overspeed governor controls main inlet throttle-stop valve fast valve steam off pipeline by oil path control system, and after steam line is closed, steam turbine quits work;
(3) sensor now on main inlet throttle-stop valve fast valve detects main inlet throttle-stop valve fast valve after steam off pipeline, at once the signal of main inlet throttle-stop valve fast valve steam off pipeline can be sent to generator comprehensive protector;
(4) after generator comprehensive protector receives the signal of main inlet throttle-stop valve fast valve steam off pipeline, can send excitation connection jump signal to generator, generator receives after signal jumped by this excitation connection and quits work.
Further, the method of controlling security of generator jumped by aforesaid a kind of turbine emergency protector connection, wherein: described sensor comprises: be installed on the block on the valve rod of main inlet throttle-stop valve fast valve, and the main inlet throttle-stop valve quick closing valve limit switch be arranged on main inlet throttle-stop valve fast valve, main inlet throttle-stop valve quick closing valve limit switch is connected with generator comprehensive protector; When main inlet throttle-stop valve fast valve steam off pipeline, the block on main inlet throttle-stop valve fast valve valve rod just in time touches main inlet throttle-stop valve quick closing valve limit switch, and the signal of main inlet throttle-stop valve fast valve steam off pipeline is sent to generator comprehensive protector by main inlet throttle-stop valve quick closing valve limit switch.
By the enforcement of technique scheme, the advantage of steam turbine and generator when the present invention has pressing emergency overspeed governor, can be closed simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation that emergency overspeed governor connection jumping generator control unit in the method for controlling security of generator jumped by a kind of turbine emergency protector connection of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, the method of controlling security of generator jumped by described a kind of turbine emergency protector connection, comprise the generator 2 being controlled unlatching by generator comprehensive protector 1 or closed, the steam turbine 3 that be connected coaxial with generator 2, and the steam line 4 to be connected with steam turbine 3, steam line 4 is provided with the main inlet throttle-stop valve fast valve 5 that can open or close steam line 4, and the emergency overspeed governor 6 controlling steam turbine 3 controls main inlet throttle-stop valve fast valve 5 by oil path control system 7 and opens or closes steam line 4; Comprise the following steps:
(1) first on main inlet throttle-stop valve fast valve 5, be provided with the sensor detecting main inlet throttle-stop valve fast valve on off state, sensor is connected with generator comprehensive protector 1;
(2) when steam turbine 3 breaks down, pressing emergency overspeed governor 6, emergency overspeed governor 6 controls main inlet throttle-stop valve fast valve 5 steam off pipeline 4 by oil path control system 7, and after steam line 4 is closed, steam turbine 3 quits work;
(3) sensor now on main inlet throttle-stop valve fast valve 5 detects main inlet throttle-stop valve fast valve 5 after steam off pipeline 4, the signal of main inlet throttle-stop valve fast valve 5 steam off pipeline 4 can be sent to generator comprehensive protector 1 simultaneously;
(4) after generator comprehensive protector 1 receives the signal of main inlet throttle-stop valve fast valve 5 steam off pipeline 4, can send excitation connection jump signal to generator 2, generator 2 receives after signal jumped by this excitation connection and quits work.
In the present embodiment, described sensor comprises: be installed on the block 8 on main inlet throttle-stop valve fast valve 5 valve rod, and is arranged on the main inlet throttle-stop valve quick closing valve limit switch 9 on main inlet throttle-stop valve fast valve 5, and main inlet throttle-stop valve quick closing valve limit switch 9 is connected with generator comprehensive protector 1; When main inlet throttle-stop valve fast valve 5 steam off pipeline 4, block 8 on main inlet throttle-stop valve fast valve 1 valve rod just in time touches main inlet throttle-stop valve quick closing valve limit switch 9, the signal of main inlet throttle-stop valve fast valve steam off pipeline is sent to generator comprehensive protector 1 by main inlet throttle-stop valve quick closing valve limit switch 9, this sensor construction is simple, and enterprise's user cost is low; The present invention can close the advantage of steam turbine and generator simultaneously when having pressing emergency overspeed governor.
Claims (1)
1. the method for controlling security of a turbine emergency protector connection jumping generator; comprise the generator being controlled unlatching by generator comprehensive protector or closed; the steam turbine be connected with generator coaxle; and the steam line to be connected with steam turbine; steam line is provided with the main inlet throttle-stop valve fast valve that can open or close steam line; the emergency overspeed governor controlling steam turbine controls main inlet throttle-stop valve fast valve by oil path control system and opens or closes steam line, it is characterized in that: comprise the following steps:
(1) first the sensor detecting main inlet throttle-stop valve fast valve on off state is set on main inlet throttle-stop valve fast valve, sensor is connected with generator comprehensive protector; Described sensor comprises: be installed on the block on main inlet throttle-stop valve fast valve valve rod, and is arranged on the main inlet throttle-stop valve quick closing valve limit switch on main inlet throttle-stop valve fast valve, and main inlet throttle-stop valve quick closing valve limit switch is connected with generator comprehensive protector; When main inlet throttle-stop valve fast valve steam off pipeline, the block on main inlet throttle-stop valve fast valve valve rod just in time touches main inlet throttle-stop valve quick closing valve limit switch, and the signal of main inlet throttle-stop valve fast valve steam off pipeline is sent to generator comprehensive protector by main inlet throttle-stop valve quick closing valve limit switch;
(2) when steam turbine breaks down, pressing emergency overspeed governor, emergency overspeed governor controls main inlet throttle-stop valve fast valve steam off pipeline by oil path control system, and after steam line is closed, steam turbine quits work;
(3) sensor now on main inlet throttle-stop valve fast valve detects main inlet throttle-stop valve fast valve after steam off pipeline, at once the signal of main inlet throttle-stop valve fast valve steam off pipeline can be sent to generator comprehensive protector;
(4) after generator comprehensive protector receives the signal of main inlet throttle-stop valve fast valve steam off pipeline, can send excitation connection jump signal to generator, generator receives after signal jumped by this excitation connection and quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353454.7A CN104121044B (en) | 2014-07-24 | 2014-07-24 | The method of controlling security of generator jumped by a kind of turbine emergency protector connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353454.7A CN104121044B (en) | 2014-07-24 | 2014-07-24 | The method of controlling security of generator jumped by a kind of turbine emergency protector connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121044A CN104121044A (en) | 2014-10-29 |
| CN104121044B true CN104121044B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410353454.7A Active CN104121044B (en) | 2014-07-24 | 2014-07-24 | The method of controlling security of generator jumped by a kind of turbine emergency protector connection |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114033506B (en) * | 2021-11-17 | 2023-09-12 | 中国电建集团江西省电力设计院有限公司 | Emergency stop protection device for FCB functional unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB325269A (en) * | 1928-11-15 | 1930-02-17 | Eric Maurice Johnson | Improvements in or relating to power systems |
| US2902831A (en) * | 1958-08-22 | 1959-09-08 | Gen Electric | Governing system for reheat steam turbine powerplant |
| GB1604711A (en) * | 1977-09-09 | 1981-12-16 | Gen Electric | System for protecting power distribution circuit against ground faults |
| CN2926521Y (en) * | 2006-07-03 | 2007-07-25 | 郑州荣奇热电能源有限公司 | Adjusting security system of steam turbine set |
| CN201197086Y (en) * | 2008-05-16 | 2009-02-18 | 鞍山钢铁集团公司第二发电厂 | Redundant power supply used for digital electro-hydraulic control system of turbine |
| CN103615322A (en) * | 2013-11-20 | 2014-03-05 | 内蒙古包钢钢联股份有限公司 | TRT (Top Gas Pressure Recovery Turbine) unit over-speed control system and TRT unit over-speed control method |
| CN103628933A (en) * | 2013-12-02 | 2014-03-12 | 成都成发科能动力工程有限公司 | Control method for realizing ETS (emergency trip system) function of small-sized steam turbine set |
-
2014
- 2014-07-24 CN CN201410353454.7A patent/CN104121044B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB325269A (en) * | 1928-11-15 | 1930-02-17 | Eric Maurice Johnson | Improvements in or relating to power systems |
| US2902831A (en) * | 1958-08-22 | 1959-09-08 | Gen Electric | Governing system for reheat steam turbine powerplant |
| GB1604711A (en) * | 1977-09-09 | 1981-12-16 | Gen Electric | System for protecting power distribution circuit against ground faults |
| CN2926521Y (en) * | 2006-07-03 | 2007-07-25 | 郑州荣奇热电能源有限公司 | Adjusting security system of steam turbine set |
| CN201197086Y (en) * | 2008-05-16 | 2009-02-18 | 鞍山钢铁集团公司第二发电厂 | Redundant power supply used for digital electro-hydraulic control system of turbine |
| CN103615322A (en) * | 2013-11-20 | 2014-03-05 | 内蒙古包钢钢联股份有限公司 | TRT (Top Gas Pressure Recovery Turbine) unit over-speed control system and TRT unit over-speed control method |
| CN103628933A (en) * | 2013-12-02 | 2014-03-12 | 成都成发科能动力工程有限公司 | Control method for realizing ETS (emergency trip system) function of small-sized steam turbine set |
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| CN104121044A (en) | 2014-10-29 |
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Effective date of registration: 20190704 Address after: 215600 Yonglian Village, Nanfeng Town, Zhangjiagang City, Jiangsu Province Patentee after: Lian Feng Steel (Zhangjiagang) Co., Ltd. Address before: 215628 Yonglian Jiangsu Yonggang Group Co., Ltd., Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Jiangsu Yonggang Group Co., Ltd. |
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