CN103321696B - A kind of thermal power generation automatic control heating system - Google Patents
A kind of thermal power generation automatic control heating system Download PDFInfo
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- CN103321696B CN103321696B CN201310188265.4A CN201310188265A CN103321696B CN 103321696 B CN103321696 B CN 103321696B CN 201310188265 A CN201310188265 A CN 201310188265A CN 103321696 B CN103321696 B CN 103321696B
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- pressure heater
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Abstract
The invention discloses a kind of thermal power generation automatic control heating system, include successively by the vapour condenser of pipeline connection, low-pressure heater, oxygen-eliminating device, high-pressure heater, boiler, temperature transducer is provided with in boiler, the rotor of Steam Turbine in Fire Power Plant is provided with speed probe, the high-pressure cylinder of high-pressure heater suction port and Steam Turbine in Fire Power Plant is pumped between gas port and pipeline is provided with solenoid valve, the high-pressure cylinder of high-pressure heater suction port and Steam Turbine in Fire Power Plant is pumped between gas port and bypass has pipeline, bypass conduit is provided with solenoid valve, air pump, temperature transducer, speed probe is respectively by data acquisition unit access center control CPU, the output terminal of center control CPU is connected with electromagnetic valve end respectively.The present invention, according to turbine rotor rotary speed data and boiler temperature data, carries out tolerance to turbine low pressure cylinder and supplements, improve the stability of power generation operation, and can effectively reduce Coal Energy Source loss.
Description
Technical field
The present invention relates to thermal power generation heating system field, be specially a kind of thermal power generation automatic control heating system.
Background technique
Thermal power generation is using coal as thermal source, and heating water produces steam in the boiler, utilize steam to make the high, medium and low cylinder pressure acting of steam turbine, thus drive electrical generators produces electric energy.Prior art thermal power generation heating system is by vapour condenser, low-pressure heater, oxygen-eliminating device, high-pressure heater, boiler is formed, in low pressure (LP) cylinder, steam enters after vapour condenser is condensed into water, heat through low-pressure heater successively, oxygen-eliminating device deoxygenation, boiler is sent into after high-pressure heater heating, wherein high-pressure heater pumps steam heating from high-pressure cylinder, low-pressure heater pumps steam heating from intermediate pressure cylinder, after water is heated to steam condition in boiler, feeding steam turbine high-pressure cylinder does work, steam after acting again enters in boiler and sends into intermediate pressure cylinder acting after heating, then send into low pressure (LP) cylinder by intermediate pressure cylinder to do work, finally send into vapour condenser from low pressure (LP) cylinder and complete a circulation.The heating system of this structure can meet thermal power generation steam turbine air supply requirement, but cannot carry out steam compensatory control in conjunction with steam tolerance situation in turbine rotor rotation situation and boiler to low pressure (LP) cylinder.
Summary of the invention
The object of this invention is to provide a kind of thermal power generation automatic control heating system, cannot to the problem of low pressure (LP) cylinder steam auto-compensation to solve prior art thermal power generation heating system.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of thermal power generation automatic control heating system, include successively by the vapour condenser of pipeline connection, low-pressure heater, oxygen-eliminating device, high-pressure heater, boiler, described boiler passes through the height of different supply air line difference air feed to Steam Turbine in Fire Power Plant, intermediate pressure cylinder, the intermediate pressure cylinder described low-pressure heater having suction port be switched to Steam Turbine in Fire Power Plant by pipeline pumps gas port, high-pressure cylinder high-pressure heater having suction port be switched to Steam Turbine in Fire Power Plant by pipeline pumps gas port, it is characterized in that: in described boiler, be provided with temperature transducer, coaxial on the rotor of Steam Turbine in Fire Power Plant speed probe is installed, the high-pressure cylinder of described high-pressure heater suction port and Steam Turbine in Fire Power Plant is pumped between gas port and pipeline is provided with solenoid valve, the high-pressure cylinder of high-pressure heater suction port and Steam Turbine in Fire Power Plant to pump between gas port on pipeline also bypass pipeline, bypass conduit is switched to thermal power plant low pressure (LP) cylinder, and bypass conduit is provided with solenoid valve, air pump, also include center control CPU, and the data acquisition unit of access center control CPU, described temperature transducer, speed probe is respectively by data acquisition unit access center control CPU, the output terminal of center control CPU is connected with electromagnetic valve end respectively.
Described a kind of thermal power generation automatic control heating system, is characterized in that: described temperature transducer is thermocouple temperature sensor.
Described a kind of thermal power generation automatic control heating system, is characterized in that: described center control CPU also has access to power module and human-computer interaction module.
In the present invention, control CPU in center obtains the boiler temperature data that temperature transducer detects, the turbine rotor rotary speed data that speed probe detects, when occurring that rotor speed declines, and boiler temperature is constant or raise time, now need not add coal to boiler, the solenoid valve that the high-pressure cylinder controlling high-pressure heater suction port and Steam Turbine in Fire Power Plant by center control CPU is pumped between gas port on pipeline disconnects, stop pumping steam heating to high-pressure heater, the CPU of center control simultaneously controls the bypass conduit solenoid conducting being switched to thermal power plant low pressure (LP) cylinder, steam in high-pressure cylinder is entered in low pressure (LP) cylinder carry out tolerance to be supplemented.
The present invention, according to turbine rotor rotary speed data and boiler temperature data, carries out tolerance to turbine low pressure cylinder and supplements, improve the stability of power generation operation, and can effectively reduce Coal Energy Source loss.
Accompanying drawing explanation
Fig. 1 is present system structure principle chart.
Fig. 2 is control section electrical principle block diagram of the present invention.
Embodiment
As shown in Figure 1 and Figure 2.A kind of thermal power generation automatic control heating system, include successively by the vapour condenser 1 of pipeline connection, low-pressure heater 2, oxygen-eliminating device 3, high-pressure heater 4, boiler 5, boiler 5 passes through the height of different supply air line difference air feed to Steam Turbine in Fire Power Plant, intermediate pressure cylinder 6, 7, the intermediate pressure cylinder 7 low-pressure heater 2 having suction port be switched to Steam Turbine in Fire Power Plant by pipeline pumps gas port, the high-pressure cylinder 6 high-pressure heater 4 having suction port be switched to Steam Turbine in Fire Power Plant by pipeline pumps gas port, temperature transducer 8 is provided with in boiler 5, coaxial on the rotor of Steam Turbine in Fire Power Plant speed probe 9 is installed, the high-pressure cylinder 6 of high-pressure heater 4 suction port and Steam Turbine in Fire Power Plant is pumped between gas port and pipeline is provided with solenoid valve 10, the high-pressure cylinder 6 of high-pressure heater 4 suction port and Steam Turbine in Fire Power Plant to pump between gas port on pipeline also bypass pipeline, bypass conduit is switched to thermal power plant low pressure (LP) cylinder 11, and bypass conduit is provided with solenoid valve 12, air pump 13, also include center control CPU14, and the data acquisition unit of access center control CPU14, temperature transducer 8, speed probe 9 is respectively by data acquisition unit access center control CPU14, the output terminal of center control CPU14 respectively with solenoid valve 10, 12 control ends connect.
Temperature transducer 8 is thermocouple temperature sensor.
Control CPU14 in center also has access to power module and human-computer interaction module.
Claims (2)
1. a thermal power generation automatic control heating system, include successively by the vapour condenser of pipeline connection, low-pressure heater, oxygen-eliminating device, high-pressure heater, boiler, described boiler passes through the height of different supply air line difference air feed to Steam Turbine in Fire Power Plant, intermediate pressure cylinder, the intermediate pressure cylinder described low-pressure heater having suction port be switched to Steam Turbine in Fire Power Plant by pipeline pumps gas port, high-pressure cylinder high-pressure heater having suction port be switched to Steam Turbine in Fire Power Plant by pipeline pumps gas port, it is characterized in that: in described boiler, be provided with temperature transducer, coaxial on the rotor of Steam Turbine in Fire Power Plant speed probe is installed, the high-pressure cylinder of described high-pressure heater suction port and Steam Turbine in Fire Power Plant is pumped between gas port and pipeline is provided with solenoid valve, the high-pressure cylinder of high-pressure heater suction port and Steam Turbine in Fire Power Plant to pump between gas port on pipeline also bypass pipeline, bypass conduit is switched to thermal power plant low pressure (LP) cylinder, and bypass conduit is provided with solenoid valve, air pump, also include center control CPU, and the data acquisition unit of access center control CPU, described temperature transducer, speed probe is respectively by data acquisition unit access center control CPU, the output terminal of center control CPU is connected with electromagnetic valve end respectively,
Described temperature transducer is thermocouple temperature sensor.
2. a kind of thermal power generation automatic control heating system according to claim 1, is characterized in that: described center control CPU also has access to power module and human-computer interaction module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188265.4A CN103321696B (en) | 2013-05-20 | 2013-05-20 | A kind of thermal power generation automatic control heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310188265.4A CN103321696B (en) | 2013-05-20 | 2013-05-20 | A kind of thermal power generation automatic control heating system |
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| Publication Number | Publication Date |
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| CN103321696A CN103321696A (en) | 2013-09-25 |
| CN103321696B true CN103321696B (en) | 2015-12-02 |
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| CN201310188265.4A Expired - Fee Related CN103321696B (en) | 2013-05-20 | 2013-05-20 | A kind of thermal power generation automatic control heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352321A (en) * | 2016-09-14 | 2017-01-25 | 上海明华电力技术工程有限公司 | Method for removing high-pressure heater based on waterside bypass to participate in primary frequency modulation of unit |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527269B (en) * | 2013-10-11 | 2015-03-18 | 上海电力学院 | Steam-turbine combined intermediate reheating quasi-Carnot-cycle thermal power generation system |
| CN105781641B (en) * | 2015-07-04 | 2018-03-20 | 佛山恒益发电有限公司 | Thermal power plant generating equipment and synchronized control method |
| CN114352365B (en) * | 2021-12-30 | 2023-04-25 | 华能沁北发电有限责任公司 | Device and method for monitoring heat consumption rate of online steam turbine of thermal power plant |
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| CN2731111Y (en) * | 2004-08-31 | 2005-10-05 | 天津市电力科技发展公司 | Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device |
| CN102392700A (en) * | 2011-08-23 | 2012-03-28 | 福建省石狮热电有限责任公司 | Novel backpressure turbine with low vacuum regenerative heat |
| CN102588938A (en) * | 2012-02-14 | 2012-07-18 | 西安热工研究院有限公司 | Energy-saving quick power regulating system of thermal generator set and method |
| RU2461723C1 (en) * | 2011-02-25 | 2012-09-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Thermal power plant |
| CN103016083A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Back pressure and straight condensing switching heat supply system |
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2013
- 2013-05-20 CN CN201310188265.4A patent/CN103321696B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2731111Y (en) * | 2004-08-31 | 2005-10-05 | 天津市电力科技发展公司 | Three-low cylinder three-exhausting condensing type turbine set thermoelectric combined generation device |
| RU2461723C1 (en) * | 2011-02-25 | 2012-09-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Thermal power plant |
| CN102392700A (en) * | 2011-08-23 | 2012-03-28 | 福建省石狮热电有限责任公司 | Novel backpressure turbine with low vacuum regenerative heat |
| CN102588938A (en) * | 2012-02-14 | 2012-07-18 | 西安热工研究院有限公司 | Energy-saving quick power regulating system of thermal generator set and method |
| CN103016083A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Back pressure and straight condensing switching heat supply system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352321A (en) * | 2016-09-14 | 2017-01-25 | 上海明华电力技术工程有限公司 | Method for removing high-pressure heater based on waterside bypass to participate in primary frequency modulation of unit |
| CN106352321B (en) * | 2016-09-14 | 2019-04-26 | 上海明华电力技术工程有限公司 | The method that excision high-pressure heater participates in unit primary frequency modulation is bypassed based on water side |
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| CN103321696A (en) | 2013-09-25 |
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Effective date of registration: 20180831 Address after: 223800 Jiangsu Suqian Shuyang Economic Development Zone Hangzhou East Road and jade ring road intersection. Patentee after: JIANGSU NEW POWER (MUYANG) THERMOELECTRICITY Co.,Ltd. Address before: 233000 No. 103, Zhong Rong Street, Culture Museum, bengshan mountain, Bengbu, Anhui Patentee before: Gu Jin |
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Granted publication date: 20151202 |
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