CN102392693B - Heating cogeneration turbogenerator system - Google Patents
Heating cogeneration turbogenerator system Download PDFInfo
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- CN102392693B CN102392693B CN201110385672.5A CN201110385672A CN102392693B CN 102392693 B CN102392693 B CN 102392693B CN 201110385672 A CN201110385672 A CN 201110385672A CN 102392693 B CN102392693 B CN 102392693B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a heating cogeneration turbogenerator system which comprises a high and middle pressure part rotor, a low pressure part rotor, a generator rotor, a heating regulating valve and the like, wherein a clutch is arranged between the low pressure part rotor and the generator rotor; a rotor arranged in the front of a generator is directly connected with the high and middle pressure part rotor of a turbine; a low pressure shutoff valve is arranged in the front of the heating regulating valve, a bypass of the low pressure shutoff valve is provided with a low pressure bypass stop valve and a low pressure bypass regulating valve; a heating network stop valve is arranged on a heating steam extraction pipeline, a bypass of the heating network stop valve is provided with a heating network bypass stop valve and a heating network bypass regulating valve; and a rotating speed monitoring and controlling system, a thrust bearing and a turning gear are arranged on a low pressure part. The heating cogeneration turbogenerator system provided by the technical scheme of the invention has the advantages of large steam extraction quantity and high heat efficiency.
Description
Technical field
The present invention relates to a kind of steam turbine, specifically, relate to a kind of heating cogeneration turbogenerator system.
Background technique
What domestic existing high pressure series 100MW grade, ultrahigh pressure 135MW grade, ultrahigh pressure 200MW grade, subcritical 300MW grade, the medium-and-large-sized heating steam turbine of overcritical 350MW grade adopted is all the method for drawing gas, there is heating load few, the problem that hear rate high efficiency is low.
Conventional turbonator shafting adopts pressure, middle pressure zone low pressure, depression belt generator mode in high pressure zone, few for solving heating steam turbine heating load, the problem that hear rate high efficiency is low, domestic existing close solution is that low pressure is by pressure, middle pressure zone generator shaft system pattern in automatic clutch band high pressure, high pressure zone, realize the clutch of low pressure and high pressure, middle pressure, so realize condensing, draw gas, back pressure operation.
As shown in Figure 1, be that prior art Subcritical 330MW takes out solidifying type generator set system diagram.It is as follows that 330MW takes out solidifying type generator set turbine parameters:
Type: subcritical, three cylinder two steam discharges, resuperheat take out solidifying wet cooling gas turbine
Model: NC330 (250)-17.75/0.4/540/540
Machine packet size: overall length 19121mm
Unit progression: high pressure I+10, middle pressure 12, low pressure 2 × 5
Heating extraction pressure: 0.4Mpa.a(0.25 ~ 0.5Mpa.a)
Heating extraction temperature: 241 DEG C
Heating extraction flow: specified 550t/h, maximum 600t/h
Heating is drawn gas hear rate: 5331kj/kw.h
As shown in Figure 2, be that in prior art, overcritical 350MW takes out solidifying type generator set system diagram.
It is as follows that 350MW takes out solidifying type generator set turbine parameters:
Type: overcritical, two-cylinder two-exhaust, resuperheat take out solidifying wet cooling gas turbine
Model: NC350 (276)-24.2/0.4/566/566
Machine packet size: overall length 16511.5mm
Unit progression: high pressure I+7, middle pressure 7, low pressure 2 × 5
Heating extraction pressure: 0.4Mpa.a(0.25 ~ 0.5Mpa.a)
Heating extraction temperature: 253 DEG C
Heating extraction flow: specified 500t/h, maximum 550t/h
Heating is drawn gas hear rate: 5568kj/kw.h
Domestic existing close solution is low pressure by pressing in automatic clutch band high pressure, high pressure zone, middle pressure zone generator shaft system pattern, realizes the clutch of low pressure and high pressure, middle pressure, so realize condensing, draw gas, back pressure operation.Its shortcoming is: pressure zone generator in axle system, and axle journal transmitting torque ability is little; Low pressure is by clutch band high pressure, and axle system torsion Vibration guarantee property is poor; Thus what cause existing medium-and-large-sized heating steam turbine to adopt is all the method for drawing gas, heating load is few, and hear rate high efficiency is low, and energy utilization rate is low.
Summary of the invention
Technical problem solved by the invention is to provide a kind of heating cogeneration turbogenerator system, and the amount of drawing gas is large, the thermal efficiency is high.
Technological scheme is as follows:
A kind of heating cogeneration turbogenerator system, comprise high pressure part rotor, low-pressure section rotor, generator amature and heating modulating valve, be connected with clutch between described low-pressure section rotor and generator amature, described generator amature is directly connected with described high pressure part rotor; Before described heating modulating valve, be provided with low pressure shut-off valve, the bypass of described low pressure shut-off valve is provided with low pressure bypass cutoff valve and low pressure bypass regulator valve; Heating extraction line is provided with heat supply network stop valve, and the bypass of described heat supply network stop valve is provided with heat supply network bypass cutoff valve and heat supply network bypass regulator valve; Described low-pressure section is provided with rotation speed monitoring and control system, thrust-bearing and barring gear; Described heating modulating valve is that heating is drawn gas butterfly valve.
Further: described clutch adopts 3S automatic clutch.
Further: described rotation speed monitoring and set-up of control system are in steam turbine electro-hydraulic governing system DEH, and described rotation speed monitoring and control system comprise rotation speed monitoring control loop.
Originally unit:
Subcritical 330MW heating extraction flow: specified 550t/h, maximum 600t/h
Subcritical 330MW heating is drawn gas hear rate: 5331kj/kw.h
Overcritical 350MW heating extraction flow: specified 500t/h, maximum 550t/h
Overcritical 350MW heating is drawn gas hear rate: 5568kj/kw.h
Unit of the present invention:
Subcritical 330MW heating extraction flow: maximum 750t/h
Subcritical 330MW heating is drawn gas hear rate: minimum 4177kj/kw.h
Overcritical 350MW heating extraction flow: maximum 750t/h
Overcritical 350MW heating is drawn gas hear rate: minimum 4146kj/kw.h
As can be seen from contrast, the amount of drawing gas of technical solution of the present invention is large, the thermal efficiency is high.
Accompanying drawing explanation
Fig. 1 is that prior art Subcritical 330MW takes out solidifying type generator set system diagram, A, C----middle high-pressure main stop valve, B, D----middle high-pressure modulating valve, E----heat supply network stop valve, and I----extraction regulation butterfly valve K----draws gas bypassing safety valve;
Fig. 2 is that in prior art, overcritical 350MW takes out solidifying type generator set system diagram; A, C----middle high-pressure main stop valve, B, D----middle high-pressure modulating valve, E----heat supply network stop valve, I----extraction regulation butterfly valve, K----draws gas bypassing safety valve;
Fig. 3 is heating cogeneration turbogenerator system figure in the present invention;
E----heat supply network stop valve, F----shut-off valve, I----extraction regulation butterfly valve, K----safety valve, G----low pressure bypass cutoff valve, H----low pressure bypass regulator valve, J----clutch, G 〞----heat supply network bypass cutoff valve, H 〞----heat supply network bypass regulator valve.
Embodiment
In technical solution of the present invention, adopt high pressure, low pressure respectively before generator dragging method realize that steam turbine condensing-draw gas-back pressure operation.
As shown in Figure 3, be heating cogeneration turbogenerator system figure in the present invention.
---overall plan
Steam turbine low-pressure part is moved to the rear portion of generator, arrange clutch (3S automatic clutch) J between low-pressure section rotor and generator amature, generator amature is directly connected with the rotor of steam turbine high pressure part.
Steamer owner thermodynamic system is constant.
Heating configuration aspect, arranges the low pressure shut-off valve F of equal through-current capacity before heating modulating valve, and the bypass of low pressure shut-off valve F arranges smaller the rising of capacity and employs low pressure bypass cutoff valve G and low pressure bypass regulator valve H; Heating extraction line arranges heat supply network stop valve E, and the bypass of heat supply network stop valve E arranges heat supply network bypass cutoff valve G 〞 and heat supply network bypass regulator valve H 〞, pressure steam pressure in during for ensureing to start.
Generator rear portion changes according to steam turbine low-pressure front part connection request.
---major parameter (thermal parameter, overall arrangement size)
Steam inlet condition: constant
Steam discharge parameter: constant
Machine packet size: overall length (16511.5mm) increases about 500mm
Unit progression: constant
Heating extraction pressure: constant
Heating extraction temperature: constant
Heating extraction flow:
The maximum 600t/h of Sub type NC pattern, the maximum 750t/h of B-mode
The maximum 550t/h of SC type NC pattern, the maximum 750t/h of B-mode
Heating operating mode hear rate:
Sub type NC pattern 5158kj/kw.h, B-mode 4177kj/kw.h
SC type NC pattern 5417kj/kw.h, B-mode 4146kj/kw.h
Heating operating mode power:
Sub type NC pattern 257.4MW, B-mode 242.0MW
SC type NC pattern 287.2MW, B-mode 265.5MW
Non-heating period: each thermal parameter of unit is constant.
---body structure change (each axle journal, front bearing box internal sleeve, connecting tube)
Sub type
Axle journal: constant.
Front bearing box internal sleeve: constant.
Connecting tube: on increase length, install low pressure shut-off valve F, low pressure bypass cutoff valve G and low pressure bypass regulator valve H additional, according to power station general arrangement, its arrangement will consider that a high position directly increases support, or side direction low position.
Low-pressure section increases thrust-bearing and barring gear.
SC type
Axle journal: constant
Front bearing box internal sleeve: constant.
Connecting tube: change is with subcritical close.
---subsystem (main oil pump, barring gear)
Lubricating oil system: constant
Jacking oil system: constant.
Sealing system: constant.
Draining system: constant.
---subsidiary engine (condenser-circulating water pump configuration)
Configure constant, circulating water pump can run in pure back pressure operating mode part or stop transport.
---control-protection
Increase the control system that B form is run and switched, mainly back pressure (extraction flow) control loop is set in steam turbine electro-hydraulic governing system (DEH), and takes out solidifying pattern and back pressure pattern switching function.
Increase low pressure rotation speed monitoring and control system, mainly rotation speed monitoring control loop is set in DEH.
---start and stop run
First start high-pressure unit, then coordinate with low pressure bypass regulator valve H, heat supply network bypass regulator valve H 〞 and start low-pressure machine, after low voltage starting, then carry out the switching of low pressure bypass regulator valve H and extraction regulation butterfly valve I and low pressure shut-off valve F.
Take out solidifying pattern and back pressure pattern switches, coordinated by extraction regulation butterfly valve I and low pressure bypass cutoff valve G, low pressure bypass regulator valve H, low pressure shut-off valve F.
During shutdown, high-pressure unit is shut down low-pressure machine simultaneously and is shut down, and low-pressure machine is shut down high pressure and can be run.
Claims (1)
1. a heating cogeneration turbogenerator system, comprise high pressure part rotor, low-pressure section rotor, generator amature and heating modulating valve, it is characterized in that: be connected with clutch between described low-pressure section rotor and generator amature, described generator amature is directly connected with described high pressure part rotor; Before described heating modulating valve, be provided with low pressure shut-off valve, the bypass of described low pressure shut-off valve is provided with low pressure bypass cutoff valve and low pressure bypass regulator valve; Heating extraction line is provided with heat supply network stop valve, and the bypass of described heat supply network stop valve is provided with heat supply network bypass cutoff valve and heat supply network bypass regulator valve; Described low-pressure section is provided with rotation speed monitoring and control system, thrust-bearing and barring gear; Described heating modulating valve is extraction regulation butterfly valve; Described clutch adopts 3S automatic clutch; Described rotation speed monitoring and set-up of control system are in steam turbine electro-hydraulic governing system DEH, and described rotation speed monitoring and control system comprise rotation speed monitoring control loop.
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| CN201110385672.5A CN102392693B (en) | 2011-11-28 | 2011-11-28 | Heating cogeneration turbogenerator system |
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| CN201110385672.5A CN102392693B (en) | 2011-11-28 | 2011-11-28 | Heating cogeneration turbogenerator system |
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| CN102392693B true CN102392693B (en) | 2015-01-14 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102777218A (en) * | 2012-07-20 | 2012-11-14 | 山东泓奥电力科技有限公司 | Comprehensive utilization system for residual heat of coaxially post-positioned back pressure machine |
| CN102900482A (en) * | 2012-07-24 | 2013-01-30 | 山东泓奥电力科技有限公司 | Energy-saving heat supply system with middle-positioned generator and back-positioned back-pressure machine |
| CN102808666B (en) * | 2012-08-03 | 2015-03-25 | 上海电气电站设备有限公司 | Shafting support structure of online-disconnected double-cylinder steam turbine |
| CN102996191B (en) * | 2012-12-26 | 2015-05-27 | 北京国电蓝天节能科技开发有限公司 | Double-extraction adjustable heating system of thermal power generating unit |
| CN103790642A (en) * | 2013-08-08 | 2014-05-14 | 华能国际电力股份有限公司 | Gas-steam combined cycle cogeneration steam turbine and combined cycle unit |
| CN104074561B (en) * | 2014-06-03 | 2015-07-15 | 国家电网公司 | Throttling adjusting system of cogeneration turbine unit and method of ordering power by heat |
| CN111927569B (en) * | 2020-08-31 | 2024-09-24 | 西安热工研究院有限公司 | Steam turbine system and method for improving flexibility of heat supply unit |
| CN114017828A (en) * | 2021-11-09 | 2022-02-08 | 国网山东省电力公司电力科学研究院 | A nuclear power plant emergency heating system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0688502A (en) * | 1992-09-04 | 1994-03-29 | Mitsubishi Heavy Ind Ltd | Power generating plant |
| CN100494642C (en) * | 2004-08-31 | 2009-06-03 | 天津市电力科技发展公司 | Method and device for controlling heat electricity linked production of condensing steam turbine with three low cylinder and three-exhauster |
| US7939953B2 (en) * | 2008-04-16 | 2011-05-10 | Schlumberger Technology Corporation | Micro scale fischer-tropsch and oxygenate synthesis process startup unit |
| CN201897723U (en) * | 2009-11-12 | 2011-07-13 | 新华控制工程有限公司 | Control system for steam turbine LAN (local area network) |
| CN101782003A (en) * | 2010-01-27 | 2010-07-21 | 哈尔滨汽轮机厂有限责任公司 | Single-shaft heating steam turbine unit capable of running as steam-extraction turbine unit, back-pressure turbine unit and pure condensing turbine unit |
| CN102140938B (en) * | 2011-03-18 | 2014-04-30 | 上海电气电站设备有限公司 | Double-cylinder coaxial combined cycle heat supply gas turbine |
| CN202370594U (en) * | 2011-11-28 | 2012-08-08 | 北京北重汽轮电机有限责任公司 | Combined heat and power generation turbine generator system for heating and supplying heat |
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