Coal-fired unit eh oil and steam turbine regulation security system debugging method and system

A technology for security systems and coal-fired units, applied in engine testing, machine/engine, machine/structural component testing, etc., can solve problems such as hidden dangers in the safe operation of steam turbine generator sets, and achieve normal vibration, good insulation, and action flexible effects

Active Publication Date: 2018-02-23
HUADIAN ELECTRIC POWER SCI INST CO LTD
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Problems solved by technology

However, if the debugging is not done properly, it will cause hidden dangers to the safe operation of the turbogenerator set.

Method used

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  • Coal-fired unit eh oil and steam turbine regulation security system debugging method and system
  • Coal-fired unit eh oil and steam turbine regulation security system debugging method and system
  • Coal-fired unit eh oil and steam turbine regulation security system debugging method and system

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Embodiment Construction

[0144] The present invention will be described in further detail below through examples, and the following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0145]The invention is suitable for debugging the steam turbine of a coal-fired unit, and the steam turbine is a supercritical, single-shaft, one-time intermediate reheating, two-cylinder, two-exhaust, air-cooled, steam extraction and condensing steam turbine. It is characterized by the use of digital electro-hydraulic adjustment system, easy operation, safe and reliable operation. Provide pressure adjustable heating network extraction, the pressure adjustment range is between 0.245Mpa(a) to 0.6Mpa(a) (when the pressure is lower than 0.36MPa, it is realized by throttling the extraction valve on the extraction pipeline); It can also provide non-adjusted industrial steam extraction with a pressure of about 0.9MPa or 2MPa at the same time. The high and me...

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Abstract

The invention provides a coal-fired unit EH oil and turbine adjusting security system debugging method and system. Hidden danger to safe operation of a turbine generator unit is avoided, and the using safety of a coal-fired unit turbine is improved. The method comprises the following steps that after transmission of EH oil and turbine adjusting security system thermal signals and interlocking protection tests is completed, system test run conditions are checked and determined; EH oil pump test run tests and EH oil supply system debugging tests are conducted; a hydraulic adjusting system is statically debugged, and the working stroke of a hydraulic servo-motor is set; security system static debugging, a turbine static shutdown test, matched DEH system static debugging, system energy accumulator debugging and a valve closing time measuring test are conducted; an oil spray test and a valve tightness test are conducted; a turbine overspeed test and a valve movement test are conducted; and a turbine trip electromagnetic valve test and a system commissioning and interactive debugging are conducted. The system comprises a static debugging module, a turbine constant-speed debugging module and a turbine on-load debugging module.

Description

technical field [0001] The invention relates to a debugging method and system for an EH oil and steam turbine regulation and security system of a coal-fired unit. Background technique [0002] The function of the steam turbine regulating security system is to ensure that the steam turbine operates under the rated working conditions, so that the adjusted speed does not exceed the specified range, and to protect the steam turbine, such as the Chinese patent application number 200620030569.3. [0003] The newly installed coal-fired unit needs to carry out the following procedures on the EH oil and steam turbine regulation and security system: adjust the oil pressure of the oil supply system and the nitrogen pressure of the accumulator to meet the requirements of the regulation and security system; And cooperate with the thermal control to carry out ESC debugging to make it meet the design requirements; carry out debugging of the security system so that it can act quickly and ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D21/00G01M15/00
CPCF01D21/00F01D21/003G01M15/00
Inventor 张士龙邴汉昆柴保桐王彬张佳伟郭容赫
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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