CN101864507A - Converter waste heat generating system - Google Patents
Converter waste heat generating system Download PDFInfo
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- CN101864507A CN101864507A CN 201010203454 CN201010203454A CN101864507A CN 101864507 A CN101864507 A CN 101864507A CN 201010203454 CN201010203454 CN 201010203454 CN 201010203454 A CN201010203454 A CN 201010203454A CN 101864507 A CN101864507 A CN 101864507A
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Abstract
The invention discloses a converter waste heat generating system, which comprises a waste heat boiler, a heat accumulator, a steam turbine unit, and a generator set. A steam outlet of the waste heat boiler is connected with a steam inlet of the heat accumulator. The converter waste heat generating system is characterized in that the converter waste heat generating system also comprises a heating furnace with a superheater, and a steam outlet of the heat accumulator is connected with a steam inlet of the steam turbine unit through the superheater. Due to voltage stabilization of the heat accumulator, the converter waste heat generating system converts intermittent and unstable steam generated by the waste heat boiler into continuous and stable steam, and guarantees the normal work of the steam turbine unit; and by heating moisture contained in saturated steam into vapor by the superheater, the vapor becomes dry steam. Therefore, the condensate water generated when the vapor works in the steam turbine unit is effectively reduced, and the normal work of the steam turbine unit is guaranteed. In addition, the steam specific enthalpy is increased, so that the generating efficiency is improved.
Description
Technical field
The present invention relates to a kind of turbine generating system, especially a kind of converter waste heat generating system.
Background technology
UTILIZATION OF VESIDUAL HEAT IN is the important directions of saving energy and reduce the cost, in existing industrial production, the turbine generating system of a part adopts saturation steam as generation driving force in the cogeneration, promptly utilizes (waste heat) boiler to produce saturation steam and generates electricity, and effectively utilizes residual heat resources.When generating, waste heat boiler produces saturation steam and directly enters work done in the Steam Turbine, but there is following deficiency in such mode:
1, saturation steam contains and is wetting vapour, and water content is higher, and the moisture content that produces in the expansion process in steam turbine is many, therefore must consider the measure of drying of steam turbine low-pressure grade blade band water; Because a large amount of water of condensation that saturation steam produces in the work done process, when steam turbine is lost load suddenly, accumulate in rotor surface, machine internal fixing part surface and the piping, particularly the water of condensation in the big volumetrical separator can flash-off of steam, cause steam turbine jeopardously to quicken, influence the works better of steam turbine.
2, because the specific enthalpy of saturation steam (especially low-pressure saturated steam) is lower, and steam consumption is bigger during generating, generating efficiency is lower.
Summary of the invention
A kind of minimizing steam turbine internal condensation water yield of providing for the deficiency that solves above-mentioned technology is provided, guarantees the steam turbine works better, effectively improve the converter waste heat generating system of generating efficiency.
In order to achieve the above object, the converter waste heat generating system that the present invention is designed, it comprises waste heat boiler, thermophore, Steam Turbine, generating set, the vapour outlet of waste heat boiler links to each other with the thermophore steam inlet, it is characterized in that also comprising the process furnace that contains superheater, the steam outlet of described thermophore links to each other with the Steam Turbine steam inlet by superheater.The saturation steam that waste heat boiler produces is by the thermophore voltage stabilizing, be heated into superheated vapour by superheater, improve the quality of steam, through the Steam Turbine acting, final generating set produces electric energy and externally powers again, and superheater can be heated into water vapor with moisture content contained in the saturation steam, thereby make it to become dry steam, thereby effectively reduce the condensation water quantity that it produces when the work done of steam turbine inside, superheater can improve specific steam enthalpy in addition, thereby improves generating efficiency.
In order effectively to utilize the steam after the Steam Turbine work done is finished, can be that the water-in of described waste heat boiler connects deaerator storage tank, a deaerator storage tank and a deoxygenation integrated a connection; The vapour outlet of described Steam Turbine is connected with a condenser, and described condensator outlet is connected with a deoxygenation water-in.By vapor condensation, the deoxygenation after work done is finished, and return waste heat boiler again, effectively the conserve water resource.Preferred scheme is that described condensator outlet is connected with a deoxygenation water-in by the water of condensation well heater.Wherein, described process furnace can adopt the process furnace that comprises the water of condensation well heater, and the water of condensation well heater can adopt the water of condensation well heater in this process furnace.
As preferably, described waste heat boiler is steel mill's converter waste heat boiler.
The converter waste heat generating system that the present invention obtains, by the thermophore voltage stabilizing, intermittence, the unsettled steam that waste heat boiler is produced is transformed into successive, stable steam, guarantees the works better of Steam Turbine; By superheater moisture content contained in the saturation steam is heated into water vapor, thereby make it to become dry steam, thereby effectively reduce the condensation water quantity that it produces when the work done of steam turbine inside, guarantee the works better of steam turbine, improve specific steam enthalpy in addition, thereby improve generating efficiency.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the structural representation of the embodiment of the invention 2.
Among the figure: waste heat boiler 1, thermophore 2, Steam Turbine 3, generating set 4, superheater 5, deaerator storage tank 6, deoxygenation 7, condenser 8, condensate pump 9, service pump 10, water of condensation well heater 11, process furnace 12.
Embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
As shown in Figure 1, the described converter waste heat generating system of present embodiment, it comprises waste heat boiler 1, thermophore 2, Steam Turbine 3, generating set 4, the vapour outlet of waste heat boiler 1 links to each other with thermophore 2 steam inlets, it is characterized in that also comprising the process furnace 12 that contains superheater 5,, the steam outlet of described thermophore 2 links to each other with Steam Turbine 3 steam inlets by superheater 5.The saturation steam that waste heat boiler 1 produces is by thermophore 2 voltage stabilizings, be heated into superheated vapour by superheater 5, improve the quality of steam, through Steam Turbine 3 actings, final generating set 4 produces electric energy and externally powers again, and superheater 5 can be heated into water vapor with moisture content contained in the saturation steam, thereby make it to become dry steam, thereby effectively reduce the condensation water quantity that it produces when the work done of steam turbine inside, superheater 5 can improve specific steam enthalpy in addition, thereby improves generating efficiency.
Because steam is as the main media of heat exchange, utilize steam heating all to be extensive use of in all trades and professions, all need to use steam as various heating in the industries such as metallurgy, chemical industry, building materials, food, insulating process, the described waste heat boiler 1 of present embodiment adopts conventional general waste heat boiler 1, thereby the described converter waste heat generating system of present embodiment can be applied to all trades and professions.
As shown in Figure 2, the described converter waste heat generating system of present embodiment, the water-in of described as different from Example 1 waste heat boiler 1 connects deaerator storage tank 6, deaerator storage tank 6 and a deoxygenation 7 integrated a connection; The vapour outlet of described Steam Turbine 3 is connected with a condenser 8, and described condenser 8 outlets are connected with deoxygenation 7 water-in by the water of condensation well heater 11 in the process furnace 12.By vapor condensation, the deoxygenation after work done is finished, and return waste heat boiler 1 again, effectively the conserve water resource.
The described converter waste heat generating system of present embodiment, described waste heat boiler 1 is steel mill's converter waste heat boiler 1, other are with embodiment 2.
During use, in thermophore 2, absorb for the saturation steam that comes by converter waste heat boiler 1, and change into the vapour source of steady and continuous, become superheated vapour through heater heats, do work by steam turbine, send electric energy until generator, Steam Turbine 3 terminal steam condense into water by condenser 8, be delivered to deoxygenation 7 a deoxygenation water tank 6 by condensate pump 9 and carry out deoxygenation, return to converter waste heat boiler 1 by service pump 10, be heated into the generating that superheated vapour is realized steady and continuous by superheater 5, significantly improve generating efficiency.
Iron And Steel Industry is the mainstay industry of national economy, also is the industrial production big power consumer, and the state of the art of China's steel industry is compared with international most advanced level with energy consumption index also has suitable gap.According to statistics, the total amount of callable overbottom pressure, waste heat, complementary energy in the domestic iron and steel enterprises production process generally accounts for more than 15% of the total energy consumption of this enterprise.
According to Sustainable development and circular economy concept; the emphasis of development of iron and steel enterprises is technology upgrading and structural adjustment; improve environment protection and comprehensive utilization of resources level; improve the level of comprehensive utilization of waste gas, waste water, refuse to greatest extent; strive realizing " zero release, negative energy consumption steel-making ", set up circular form iron and steel factory.
Steel Plant produce a large amount of low-temp low-pressure saturation steams in technologies such as steel-making, steel rolling such as converter apparatus for vapour-cooling, except that a small amount of using by oneself, most of low-pressure saturated steam often can not get reasonable utilization, can only discharge sky, both pollute environment, caused the significant wastage of the energy again.
Along with the national economy fast development, how Steel Plant utilize these low-grade steam to the energy-saving and emission-reduction pay attention to day by day, the problem that has become each energy environment protection department of big steel factory to pay close attention to.In recent years, part iron enterprise brings into use the low-pressure saturated steam generation technology to recycle low temperature and low pressure steam cogeneration more than needed, avoid a large amount of steam to discharge the surrounding enviroment pollution problems to sky, can obtain cheap electric power again, alleviate the imbalance between supply and demand of business electrical, reduce iron and steel and generate energy consumption, and saved loss of working substance, reduce ton molten steel capability of energy dissipation.
And the described afterheat generating system of present embodiment not only can effectively utilize steel mill's waste heat, and invention efficient is higher, produces safer reliable.
Claims (4)
1. converter waste heat generating system, it comprises waste heat boiler (1), thermophore (2), Steam Turbine (3), generating set (4), the vapour outlet of waste heat boiler (1) links to each other with thermophore (2) steam inlet, it is characterized in that also comprising the process furnace (12) that contains superheater (5), the steam outlet of described thermophore (2) links to each other with Steam Turbine (3) steam inlet by superheater (5).
2. converter waste heat generating system according to claim 1 is characterized in that the water-in of described waste heat boiler (1) connects deaerator storage tank (6), deaerator storage tank (6) and integrated a connection of deoxygenation head (7); The vapour outlet of described Steam Turbine (3) is connected with a condenser (8), and described condenser (8) outlet is connected with deoxygenation head (7) water-in.
3. converter waste heat generating system according to claim 2 is characterized in that described condenser (8) outlet is connected with deoxygenation head (7) water-in by water of condensation well heater (11).
4. according to claim 1 or 2 or 3 described converter waste heat generating systems, it is characterized in that described waste heat boiler (1) is steel mill's converter waste heat boiler.
Priority Applications (1)
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| CN 201010203454 CN101864507A (en) | 2010-06-21 | 2010-06-21 | Converter waste heat generating system |
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| CN 201010203454 CN101864507A (en) | 2010-06-21 | 2010-06-21 | Converter waste heat generating system |
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| CN101864507A true CN101864507A (en) | 2010-10-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635413A (en) * | 2012-04-18 | 2012-08-15 | 山西太钢不锈钢股份有限公司 | Method for improving efficiency of saturated waste-heat power generator set |
| CN104315842A (en) * | 2014-11-10 | 2015-01-28 | 国网辽宁省电力有限公司鞍山供电公司 | Heating furnace control system of waste heat power generation system of converter |
| CN105689360A (en) * | 2016-03-03 | 2016-06-22 | 中冶东方工程技术有限公司 | System and technology utilizing converter gas for gasifying household refuse to achieve incineration and power generation |
| CN106765036A (en) * | 2016-12-07 | 2017-05-31 | 北京京诚科林环保科技有限公司 | condensed water circulation heating device |
| CN108119191A (en) * | 2018-01-31 | 2018-06-05 | 福建省东锅节能科技有限公司 | The new complementary energy exhaust heat recovery power generation reconstruction structure of steel plant and its method of work |
| CN115900376A (en) * | 2023-02-20 | 2023-04-04 | 南京金瀚环保科技有限公司 | Converter saturated steam reheating type power generation device and method thereof |
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| CN1136152A (en) * | 1995-05-18 | 1996-11-20 | 柳德宝 | Energy-saving oxygen remover by heating |
| CN1490587A (en) * | 2003-08-18 | 2004-04-21 | 芦兆生 | Method for recovering and utilizing converter waste heat |
| CN101178017A (en) * | 2007-12-04 | 2008-05-14 | 安庆林 | Method for recycling and regenerating steel plant residual heat boiler saturated steam |
| CN201502411U (en) * | 2009-09-07 | 2010-06-09 | 中冶赛迪工程技术股份有限公司 | Steam power generating system by utilizing residual heat of converter gas |
| CN201785427U (en) * | 2010-06-21 | 2011-04-06 | 浙江西子联合工程有限公司 | Power generation system utilizing waste heat of converter |
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2010
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1136152A (en) * | 1995-05-18 | 1996-11-20 | 柳德宝 | Energy-saving oxygen remover by heating |
| CN1490587A (en) * | 2003-08-18 | 2004-04-21 | 芦兆生 | Method for recovering and utilizing converter waste heat |
| CN101178017A (en) * | 2007-12-04 | 2008-05-14 | 安庆林 | Method for recycling and regenerating steel plant residual heat boiler saturated steam |
| CN201502411U (en) * | 2009-09-07 | 2010-06-09 | 中冶赛迪工程技术股份有限公司 | Steam power generating system by utilizing residual heat of converter gas |
| CN201785427U (en) * | 2010-06-21 | 2011-04-06 | 浙江西子联合工程有限公司 | Power generation system utilizing waste heat of converter |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635413A (en) * | 2012-04-18 | 2012-08-15 | 山西太钢不锈钢股份有限公司 | Method for improving efficiency of saturated waste-heat power generator set |
| CN104315842A (en) * | 2014-11-10 | 2015-01-28 | 国网辽宁省电力有限公司鞍山供电公司 | Heating furnace control system of waste heat power generation system of converter |
| CN104315842B (en) * | 2014-11-10 | 2016-06-29 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of heater control system of converter waste heat generating system |
| CN105689360A (en) * | 2016-03-03 | 2016-06-22 | 中冶东方工程技术有限公司 | System and technology utilizing converter gas for gasifying household refuse to achieve incineration and power generation |
| CN105689360B (en) * | 2016-03-03 | 2017-12-26 | 中冶东方工程技术有限公司 | A kind of system and technique of the domestic garbage burning electricity generation that gasified using coal gas of converter |
| CN106765036A (en) * | 2016-12-07 | 2017-05-31 | 北京京诚科林环保科技有限公司 | condensed water circulation heating device |
| CN108119191A (en) * | 2018-01-31 | 2018-06-05 | 福建省东锅节能科技有限公司 | The new complementary energy exhaust heat recovery power generation reconstruction structure of steel plant and its method of work |
| CN108119191B (en) * | 2018-01-31 | 2023-05-23 | 福建省东锅节能科技有限公司 | Steel plant waste energy and waste heat recovery power generation transformation structure and working method thereof |
| CN115900376A (en) * | 2023-02-20 | 2023-04-04 | 南京金瀚环保科技有限公司 | Converter saturated steam reheating type power generation device and method thereof |
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Application publication date: 20101020 |