CN112762499A - Heating method for intelligently adjusting gradient utilization of waste steam upgrading heat energy - Google Patents
Heating method for intelligently adjusting gradient utilization of waste steam upgrading heat energy Download PDFInfo
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- CN112762499A CN112762499A CN202110146937.XA CN202110146937A CN112762499A CN 112762499 A CN112762499 A CN 112762499A CN 202110146937 A CN202110146937 A CN 202110146937A CN 112762499 A CN112762499 A CN 112762499A
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- steam
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- steam turbine
- exhaust
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 73
- 239000002699 waste material Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000009466 transformation Effects 0.000 abstract description 8
- 238000012986 modification Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011426 transformation method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
本发明提供一种智能调节乏汽提质热能梯级利用供暖方法,包括如下步骤:热网回水进入到汽轮机凝汽器或汽轮机高背压凝汽器,利用汽轮机低压缸排汽的热量对热网回水进行第一级加热;乏汽提质热能梯级利用加热组件利用汽轮机中排蒸汽引射低压缸排气,并对热网回水进行第二级加热;利用汽轮机中排蒸汽对热网回水进行第三级加热;通过相应控制系统并利用调节机制对三级加热进行调节,并在三级加热输出端输出预设温度的加热回水至用户管道,本发明能够与高背压改造更好地配合,使高背压改造不再受限于热网循环水量的多少,回收更多的汽轮机乏汽潜热,减少了冷端损失,节省了高品质蒸汽的使用,提高了电厂热经济性,扩大了高背压改造的适用范围。
The invention provides a heating method for intelligently adjusting the use of waste steam to upgrade heat energy cascade, comprising the following steps: the return water of the heat network enters the steam turbine condenser or the steam turbine high back pressure condenser, and the heat of the exhaust steam of the steam turbine low pressure cylinder is used to heat the heat. The first-stage heating is performed on the return water of the heat grid; the heat energy cascade of the spent steam is used to lift the heat energy by using the heating component to inject the low-pressure cylinder exhaust with the steam discharged from the steam turbine, and the second-stage heating is performed on the return water of the heat network; the steam exhausted from the steam turbine is used to heat the heat network. The return water is heated for the third stage; the third stage heating is adjusted through the corresponding control system and the adjustment mechanism is used, and the heating return water of the preset temperature is output at the output end of the third stage heating to the user pipeline. The present invention can be retrofitted with high back pressure. With better coordination, the high back pressure retrofit is no longer limited by the amount of circulating water in the heating network, recovering more latent heat of the exhausted steam of the steam turbine, reducing the loss of the cold end, saving the use of high-quality steam, and improving the thermal economy of the power plant , which expands the scope of application of high back pressure transformation.
Description
Amount of water | t/h | 7000 |
Temperature of return water | ℃ | 45 |
Outlet temperature | ℃ | 90 |
Middle steam discharge | t/h | 515.54 |
Medium discharge of latent heat of steam | kJ/kg | 2554 |
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110146937.XA CN112762499A (en) | 2021-02-03 | 2021-02-03 | Heating method for intelligently adjusting gradient utilization of waste steam upgrading heat energy |
Applications Claiming Priority (1)
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CN202110146937.XA CN112762499A (en) | 2021-02-03 | 2021-02-03 | Heating method for intelligently adjusting gradient utilization of waste steam upgrading heat energy |
Publications (1)
Publication Number | Publication Date |
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CN112762499A true CN112762499A (en) | 2021-05-07 |
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Family Applications (1)
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CN202110146937.XA Pending CN112762499A (en) | 2021-02-03 | 2021-02-03 | Heating method for intelligently adjusting gradient utilization of waste steam upgrading heat energy |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114810249A (en) * | 2022-04-07 | 2022-07-29 | 西安热工研究院有限公司 | A thermal and electrolytic coupling system and method for a heating unit |
CN115095898A (en) * | 2022-06-01 | 2022-09-23 | 华能国际电力股份有限公司上安电厂 | Heat supply system economic operation analysis method based on exhaust steam condenser |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106661875A (en) * | 2014-06-30 | 2017-05-10 | 罗伯特·克雷默 | Devices, systems and methods for harnessing thermal energy |
CN108533341A (en) * | 2018-04-19 | 2018-09-14 | 联合瑞升(北京)科技有限公司 | A kind of feed pump turbine exhaust steam residual heat recycling system |
CN109990362A (en) * | 2019-04-09 | 2019-07-09 | 福州怡辉电力设备有限公司 | A kind of indirect air cooling unit high back pressure heating system and adjustment method |
CN111365750A (en) * | 2020-03-27 | 2020-07-03 | 晟源高科(北京)科技有限公司 | Three-level cascade heating system and integral operation optimizing method |
CN214370493U (en) * | 2021-02-03 | 2021-10-08 | 上海舟虹电力工程技术中心 | Intelligent adjustment exhaust steam upgrading heat energy gradient utilization heating system |
-
2021
- 2021-02-03 CN CN202110146937.XA patent/CN112762499A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106661875A (en) * | 2014-06-30 | 2017-05-10 | 罗伯特·克雷默 | Devices, systems and methods for harnessing thermal energy |
CN108533341A (en) * | 2018-04-19 | 2018-09-14 | 联合瑞升(北京)科技有限公司 | A kind of feed pump turbine exhaust steam residual heat recycling system |
CN109990362A (en) * | 2019-04-09 | 2019-07-09 | 福州怡辉电力设备有限公司 | A kind of indirect air cooling unit high back pressure heating system and adjustment method |
CN111365750A (en) * | 2020-03-27 | 2020-07-03 | 晟源高科(北京)科技有限公司 | Three-level cascade heating system and integral operation optimizing method |
CN214370493U (en) * | 2021-02-03 | 2021-10-08 | 上海舟虹电力工程技术中心 | Intelligent adjustment exhaust steam upgrading heat energy gradient utilization heating system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114810249A (en) * | 2022-04-07 | 2022-07-29 | 西安热工研究院有限公司 | A thermal and electrolytic coupling system and method for a heating unit |
CN114810249B (en) * | 2022-04-07 | 2024-02-20 | 西安热工研究院有限公司 | Thermoelectric decoupling system and method for heat supply unit |
CN115095898A (en) * | 2022-06-01 | 2022-09-23 | 华能国际电力股份有限公司上安电厂 | Heat supply system economic operation analysis method based on exhaust steam condenser |
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Effective date of registration: 20220316 Address after: Room a2-3063, 58 Fumin Branch Road, Hengsha Township, Chongming District, Shanghai, 201914 (Shanghai Hengtai Economic Development Zone) Applicant after: Shanghai Jingchen Electric Power Technology Center Address before: 201412 room 2093, building 1, No. 605, Antai Road, Situan Town, Fengxian District, Shanghai Applicant before: Shanghai Zhouhong Electric Power Engineering Technology Center |
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TA01 | Transfer of patent application right |
Effective date of registration: 20221018 Address after: 201419 Building 8, No. 251, Liantang Road, Xinghuo Development Zone, Fengxian District, Shanghai Applicant after: Shanghai Wenmai Power Technology Co.,Ltd. Address before: Room a2-3063, 58 Fumin Branch Road, Hengsha Township, Chongming District, Shanghai, 201914 (Shanghai Hengtai Economic Development Zone) Applicant before: Shanghai Jingchen Electric Power Technology Center |
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