CN102425781A - Efficient thermodynamic system used for reheating unit - Google Patents
Efficient thermodynamic system used for reheating unit Download PDFInfo
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- CN102425781A CN102425781A CN2011102124541A CN201110212454A CN102425781A CN 102425781 A CN102425781 A CN 102425781A CN 2011102124541 A CN2011102124541 A CN 2011102124541A CN 201110212454 A CN201110212454 A CN 201110212454A CN 102425781 A CN102425781 A CN 102425781A
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- steam turbine
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- reheating
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- 238000003303 reheating Methods 0.000 title abstract 6
- 230000001172 regenerating effect Effects 0.000 claims abstract description 10
- 239000003245 coal Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract 3
- 230000002427 irreversible effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
一种用于再热机组的高效热力系统,其特征在于:在热力系统的高压缸后设置与高压缸相连通的回热汽轮机,回热汽轮机的抽汽管路及排汽管路分别与高压加热器、除氧器相连通。本发明在机组高压缸后设置回热汽轮机,利用该汽轮机的抽汽及排汽取代若干段再热热段抽汽的热力系统方案,从而降低再热对回热的影响、提高机组的的热经济性。采用本发明可使大型火电机组全厂热效率相对提高0.3%,其煤耗率下降约0.7g/kWh左右。
A high-efficiency thermodynamic system for reheating units, characterized in that: a regenerative steam turbine connected to the high-pressure cylinder is arranged behind the high-pressure cylinder of the thermal system, and the steam extraction pipeline and the exhaust steam pipeline of the regenerative steam turbine are respectively connected to the high-pressure cylinder. The heater and the deaerator are connected. In the present invention, a reheating steam turbine is installed behind the high-pressure cylinder of the unit, and the steam extraction and exhaust steam of the steam turbine are used to replace the thermal system scheme of steam extraction in several reheating and hot sections, thereby reducing the influence of reheating on the reheating and improving the thermal efficiency of the unit. economy. By adopting the invention, the thermal efficiency of the whole plant of large thermal power units can be relatively increased by 0.3%, and the coal consumption rate can be reduced by about 0.7g/kWh.
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CN2011102124541A CN102425781A (en) | 2011-07-27 | 2011-07-27 | Efficient thermodynamic system used for reheating unit |
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CN2011102124541A CN102425781A (en) | 2011-07-27 | 2011-07-27 | Efficient thermodynamic system used for reheating unit |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103485849A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Thermodynamic system of backpressure steam extraction small turbine which is coaxial with double reheating main turbine |
CN103485848A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Backpressure steam extraction small turbine thermal system which is coaxial with single reheating main turbine |
CN103925019A (en) * | 2014-04-18 | 2014-07-16 | 国电科学技术研究院 | Matching method of supercritical secondary reheating unit reheater and thermal system |
CN104456519A (en) * | 2014-11-03 | 2015-03-25 | 章礼道 | Novel efficient water supply heat recovery system for secondary reheating unit |
CN105649690A (en) * | 2015-12-29 | 2016-06-08 | 西安交通大学 | Large heat-to-electricity ratio combined heat and electricity generation system and work method thereof |
CN105863754A (en) * | 2016-04-19 | 2016-08-17 | 东南大学 | 700 DEG C ultra-supercritical secondary reheating thermodynamic system |
CN105888741A (en) * | 2016-05-26 | 2016-08-24 | 国电龙源节能技术有限公司 | Back pressure type steam turbine driving system capable of mixing heat exchange condensation with low pressure deaerator |
CN106968733A (en) * | 2017-04-27 | 2017-07-21 | 江阴市尚时环境工程有限公司 | Power plant's superhigh-pressure high-temp reheating embrittlement |
CN110284933A (en) * | 2018-08-15 | 2019-09-27 | 北京润能科技有限公司 | A method of improving small steam turbine electricity generation system efficiency |
US11473451B2 (en) | 2018-10-10 | 2022-10-18 | Beijing Cynertec Co., Ltd. | Method for improving efficiency of Rankine cycle |
Citations (4)
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JPH0392507A (en) * | 1989-09-05 | 1991-04-17 | Toshiba Corp | Turbine bypass device for steam turbine |
US5379588A (en) * | 1990-11-20 | 1995-01-10 | General Electric Company | Reheat steam cycle for a steam and gas turbine combined cycle system |
CN101261002A (en) * | 2008-04-30 | 2008-09-10 | 华北电力大学 | Improvement Measures of Ultra- or Ultra-Supercritical Coal-fired Power Generation Thermal System |
JP2011102540A (en) * | 2009-11-10 | 2011-05-26 | Toshiba Corp | Steam turbine power generation facility and method of operating the same |
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2011
- 2011-07-27 CN CN2011102124541A patent/CN102425781A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0392507A (en) * | 1989-09-05 | 1991-04-17 | Toshiba Corp | Turbine bypass device for steam turbine |
US5379588A (en) * | 1990-11-20 | 1995-01-10 | General Electric Company | Reheat steam cycle for a steam and gas turbine combined cycle system |
CN101261002A (en) * | 2008-04-30 | 2008-09-10 | 华北电力大学 | Improvement Measures of Ultra- or Ultra-Supercritical Coal-fired Power Generation Thermal System |
JP2011102540A (en) * | 2009-11-10 | 2011-05-26 | Toshiba Corp | Steam turbine power generation facility and method of operating the same |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103485849A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Thermodynamic system of backpressure steam extraction small turbine which is coaxial with double reheating main turbine |
CN103485848A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Backpressure steam extraction small turbine thermal system which is coaxial with single reheating main turbine |
CN103925019A (en) * | 2014-04-18 | 2014-07-16 | 国电科学技术研究院 | Matching method of supercritical secondary reheating unit reheater and thermal system |
CN103925019B (en) * | 2014-04-18 | 2015-05-13 | 国电科学技术研究院 | Matching method of supercritical secondary reheating unit reheater and thermal system |
CN104456519A (en) * | 2014-11-03 | 2015-03-25 | 章礼道 | Novel efficient water supply heat recovery system for secondary reheating unit |
CN105649690A (en) * | 2015-12-29 | 2016-06-08 | 西安交通大学 | Large heat-to-electricity ratio combined heat and electricity generation system and work method thereof |
CN105863754A (en) * | 2016-04-19 | 2016-08-17 | 东南大学 | 700 DEG C ultra-supercritical secondary reheating thermodynamic system |
CN105888741A (en) * | 2016-05-26 | 2016-08-24 | 国电龙源节能技术有限公司 | Back pressure type steam turbine driving system capable of mixing heat exchange condensation with low pressure deaerator |
CN106968733A (en) * | 2017-04-27 | 2017-07-21 | 江阴市尚时环境工程有限公司 | Power plant's superhigh-pressure high-temp reheating embrittlement |
CN110284933A (en) * | 2018-08-15 | 2019-09-27 | 北京润能科技有限公司 | A method of improving small steam turbine electricity generation system efficiency |
CN110284933B (en) * | 2018-08-15 | 2020-07-10 | 北京润能科技有限公司 | Method for improving efficiency of small steam turbine power generation system |
US11473451B2 (en) | 2018-10-10 | 2022-10-18 | Beijing Cynertec Co., Ltd. | Method for improving efficiency of Rankine cycle |
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Application publication date: 20120425 |