CN201198771Y - Steam compensating type steam turbine waste heat power generation system allocated with high-efficiency sintered double-pressure waste heat boiler - Google Patents

Steam compensating type steam turbine waste heat power generation system allocated with high-efficiency sintered double-pressure waste heat boiler Download PDF

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Publication number
CN201198771Y
CN201198771Y CNU2008200869996U CN200820086999U CN201198771Y CN 201198771 Y CN201198771 Y CN 201198771Y CN U2008200869996 U CNU2008200869996 U CN U2008200869996U CN 200820086999 U CN200820086999 U CN 200820086999U CN 201198771 Y CN201198771 Y CN 201198771Y
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CN
China
Prior art keywords
steam
heat boiler
pressure
flue
waste heat
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CNU2008200869996U
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Chinese (zh)
Inventor
陈坚
金雷
赵振
沈东�
姚琼
周海平
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浙江西子联合工程有限公司
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Abstract

The utility model designs a high efficiency sintering dual pressure waste heat boiler equipped steam supplemental steam turbine waste heat power generation system, which comprises a blower, an annular cooling machine, an air chamber and a stack. The air chamber is divided into a high temperature air chamber and a low temperature air chamber. The high temperature air chamber and the low temperature air chamber are connected with a dual pressure non-supplemental firing waste heat boiler through inlet flues. The steam delivery outlet of the dual pressure non-supplemental firing waste heat boiler is connected with a dual pressure steam supplemental condensing steam turbine which is connected with a dynamo. The high pressure main steam delivery outlet and the low pressure main steam delivery outlet of the dual pressure non-supplemental firing waste heat boiler are connected with the main steam inlet and the steam supplemental inlet of the dual pressure steam supplemental condensing steam turbine. The outlet of the settling chamber of the dual pressure non-supplemental firing waste heat boiler is connected with a circulating blower through a flue. The circulating blower is connected with the air inlet of the annular cooling machine through a gas outlet flue. By adopting the generation system, the high pressure steam of the waste heat boiler enters the high pressure segment of a steam turbine to do work; the low pressure steam enters the steam turbine from the inlet of the low pressure segment to do work, thus significantly improving the generation efficiency.

Description

The two pressure exhaust heat boiler configuration of efficient sintering steam compensating turbine afterheat generating system
Technical field
The utility model designs a kind of power generation system, the two pressure exhaust heat boiler configuration of particularly a kind of efficient sintering steam compensating turbine afterheat generating system.
Background technique
In steel manufacture process, the energy consumption of sintering circuit accounts for 10% of total energy consumption, is only second to the ironmaking operation, occupies second.In the sintering circuit total energy consumption, there is nearly 50% heat energy to enter atmosphere with the sensible heat form of sintering device flue gas and cooling machine waste gas.Because the temperature of sintering circular-cooler waste gas is not high, only 150~450 ℃, the limitation of heat recovery technology before adding, heat recovery project are often given the impression of " cost height, generating is few, payback period length ", are ignored by people for a long time and forget.And single exhaust heat boiler configuration condensing steam turbine of pressing is adopted in the sintered ring cold exhaust heat generating mostly, and its characteristics are: single condensing steam turbine of pressing exhaust heat boiler to dispose single steam inlet condition, the sintered ring cold exhaust heat utilization ratio is low, the cost of electricity-generating height.
Summary of the invention
The purpose of this utility model is to provide for the deficiency that solves above-mentioned technology to have the highest heat recovery efficient, under the prerequisite that does not influence the cold technological process of former sintered ring, can guarantee that the filling steam turbine adapts to the operating mode of exhaust heat boiler, keep the two pressure exhaust heat boiler configuration of efficient sintering stable, efficient, operation continuously the steam compensating turbine afterheat generating system of cogeneration.
In order to achieve the above object, the two pressure exhaust heat boiler configuration of a kind of efficient sintering steam compensating turbine afterheat generating system that the utility model is designed, mainly comprise blower, central cooler, air compartment and chimney, air compartment is divided into high temperature air compartment and low temperature air compartment, the high temperature air compartment is connected by the air inlet flue with the low temperature air compartment and connects two waste-heat boiler without afterburning of pressing respectively, the steam outlet of two pressure waste-heat boiler without afterburning is connected to two filling condensing steam turbines of pressing, and two pressure filling condensing steam turbines connect generator; The wherein two high pressure main steam delivery outlet of waste-heat boiler without afterburning and low pressure main steams of pressing are linked into two main vapor inlet and filling imports of pressing the filling condensing steam turbine respectively; The setting chamber outlet of two pressure waste-heat boiler without afterburning connects circulating fan by flue, and circulating fan is connected to the intake grill of central cooler by the flue of giving vent to anger.
Two pressure waste-heat boiler without afterburning and two filling condensing steam turbine of pressing are communicated with by steam line, and steam line is provided with sensor, and sensor is connected to control system, and control system connects circulating fan.Chimney by switch baffle door and be arranged on the air inlet flue and the flue of giving vent to anger on.Also be provided with sensor on the fume pipe, sensor is connected to control system.But be provided with the benefit cold wind mouth of switch before the circulating fan import.The air intake flue is provided with flue dust collector.
The two pressure exhaust heat boiler configuration of the efficient sintering steam compensating turbine afterheat generating system that the utility model is designed, by air compartment being divided into high temperature air compartment and low temperature air compartment, adopt the no afterburning natural circulation exhaust heat boiler configuration of the two pressures of high-efficiency steel-smelting sintering steam compensating turbine cogeneration integrated system, utilize two no afterburning natural circulation steam waste heat boiler and supporting steam compensating turbines of pressing, the fume afterheat that can reclaim a large amount of higher temperatures of steel smelting sintering ring-cooling machine discharge in conjunction with the facilities of optimizing such as circulating flue gas system to greatest extent is used for generating, has very high heat recovery efficient.And by a circulating fan is set, control the air current flow in the flue, when giving the central cooler air feed, also high temperature and the low-temperature flue gas to two pressure waste-heat boiler without afterburning carries out drainage, plays two at one stroke effects that get.On flue, chimney is set by switching baffle door, can freely control flue gas is to circulate in system by flue, still be discharged to outside the system by chimney, guaranteed at two pressure waste-heat boiler without afterburning or two pressure filling condensing steam turbine generating set when breaking down or need safeguard, central cooler is isolated in this system, make central cooler still can normally move work as the ring of one in the process for producing steel and iron.And this system in use, can also increase cooling air to internal system by mending the cold wind mouth, so that central cooler reaches better effect.
The two pressure exhaust heat boiler configuration of this efficient sintering steam compensating turbine afterheat generating system, the exhaust heat boiler high pressure steam enters the acting of turbine high-pressure section, low pressure steam enters the steam turbine acting from the low pressure stage inlet, adopts two steam turbine set of pressing, and obviously improves generating efficiency.By control system dynamic adjustments circulating fan, make exerting oneself of residual neat recovering system keep maximum, under the prerequisite that does not influence the cold technological process of former sintered ring, keep stable, efficient, the operation continuously of cogeneration.And this power generation system not only do not need to consume any fossil fuel, and reduces the heat of central cooler to the sky discharging significantly, and it is remarkable to reduce the thermo-pollution effect.Help the realization of Sustainable Development of Enterprises target, the atmospheric pollutant of SO2, the NOX that the minimizing locality is brought by conventional thermal power plant, dust and so on.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 is the utility model embodiment 2 structural representations.
Embodiment
In conjunction with the accompanying drawings patent of the present invention is further described below by embodiment.
Embodiment 1
As shown in Figure 1, the two pressure exhaust heat boiler configuration of a kind of efficient sintering steam compensating turbine afterheat generating system that the utility model is designed mainly comprises blower 1, central cooler 2, air compartment 3, chimney 4 and generator 9.Air compartment 3 is divided into high temperature air compartment 3-1 and low temperature air compartment 3-2, high temperature air compartment 3-1 is connected by the air inlet flue with low temperature air compartment 3-2 and connects two waste-heat boiler without afterburning 6 of pressing respectively, the steam outlet of two pressure waste-heat boiler without afterburning 6 is connected to two filling condensing steam turbines 7 of pressing, and two pressure filling condensing steam turbines 7 connect generator 9; The wherein two high pressure main steam delivery outlet of waste-heat boiler without afterburning 6 and low pressure main steams of pressing are linked into two main vapor inlet and filling imports of pressing filling condensing steam turbine 7 respectively; The setting chamber outlet of two pressure waste-heat boiler without afterburning 6 connects circulating fan 8 by flue, and circulating fan 8 is connected to the intake grill of central cooler 2 by the flue of giving vent to anger.
During use, enter two waste-heat boiler without afterburning 6 of pressing respectively, produce high pressure steam and low pressure steam by high temperature air compartment and low temperature air compartment.High pressure steam enters two filling condensing steam turbine 7 high pressure sections actings of pressing, and low pressure steam enters two filling condensing steam turbine 7 actings of pressing from the low pressure stage inlet, and two pressure filling condensing steam turbines 7 drive generator set 9 generatings.Flue gas recirculation in circulating fan 8 control system under asynchronous user mode, is provided with different rotating speeds can for circulating fan 8, and the balance and the maximum waste heat that reach system with control are exerted oneself.
Embodiment 2
As shown in Figure 2, the two pressure exhaust heat boiler configuration of the efficient sintering steam compensating turbine afterheat generating system that present embodiment is designed, but be provided with the valve 12 of switch between its described blower 1 and the central cooler 2, chimney 4 by switch baffle door 10 and be arranged on the air inlet flue and the flue of giving vent to anger on.But be provided with the benefit cold wind mouth 11 of switch before circulating fan 8 imports.The air intake flue is provided with flue dust collector 13.Two pressure waste-heat boiler without afterburning 6 and two filling condensing steam turbine 7 of pressing are communicated with by steam line 14, steam line 14 is provided with sensor 15, the chimney that switches baffle door 10 close central cooler sides is provided with sensor 17, sensor 15 and sensor 17 are connected to control system 5, and control system 5 connects circulating fan 8.
During use, sensor 15 and sensor 17 detect the various situations in steam line 14 and the fume pipe 16 respectively, and data are turned back to control system 5, and control system 5 is according to different situations, the rotating speed of control circle blower fan 8, the balance and the maximum waste heat that reach system with control are exerted oneself.Also can suitably open benefit cold wind mouth according to the use condition of central cooler 2, with the cooling effect of control central cooler and the balance of system, and flue dust collector 13 will be removed the particulate matter in the part flue, purify the flue gas in the flue.Simultaneously, when power generation system need be safeguarded, can use and switch baffle door 10 4 discharges of the guiding of the flue gas in flue chimney, open blower 1 and valve 12 simultaneously, begin to give central cooler 2 air feeds, can under the situation that does not influence central cooler 2 work, safeguard two waste-heat boiler without afterburning 6, two pressure filling condensing steam turbine 7 and generator set 9 of pressing by blower 1.

Claims (9)

1. the two pressure exhaust heat boilers of efficient sintering dispose the steam compensating turbine afterheat generating system, mainly comprise blower (1), central cooler (2), air compartment (3), chimney (4) and generator (9), it is characterized in that air compartment (3) is divided into high temperature air compartment (3-1) and low temperature air compartment (3-2), high temperature air compartment (3-1) is connected by the air inlet flue with low temperature air compartment (3-2) and connects two waste-heat boiler without afterburning (6) of pressing respectively, the steam outlet of two pressure waste-heat boiler without afterburning (6) is connected to two filling condensing steam turbines (7) of pressing, and two pressure filling condensing steam turbines (7) connect generator (9); The wherein two middle pressure main steam delivery outlet of waste-heat boiler without afterburning (6) and low pressure main steams of pressing are linked into two main vapor inlet and filling imports of pressing filling condensing steam turbine (7) respectively; The setting chamber outlet of two pressure waste-heat boiler without afterburning (6) connects circulating fan (8) by flue, and circulating fan (8) is connected to the intake grill of central cooler (2) by the flue of giving vent to anger.
2. the two pressure exhaust heat boiler configuration of efficient sintering according to claim 1 steam compensating turbine afterheat generating system, it is characterized in that described two waste-heat boiler without afterburning (6) and two filling condensing steam turbine (7) of pressing of pressing is communicated with by steam line (14), steam line (14) is provided with sensor (15), sensor (15) is connected to control system (5), fume pipe (16) is provided with sensor (17), sensor (17) is connected to control system (5), and control system (5) connects circulating fan (8).
3. the two pressure exhaust heat boilers configuration of efficient sintering according to claim 1 and 2 steam compensating turbine afterheat generating system is characterized in that being arranged on air inlet flue and the flue of giving vent to anger by switching baffle door (10) at described chimney (4).
4. the two pressure exhaust heat boilers configuration of efficient sintering according to claim 1 and 2 steam compensating turbine afterheat generating system, it is characterized in that circulating fan (8) but be provided with the benefit cold wind mouth (11) of switch before the import.
5. the two pressure exhaust heat boilers configuration of efficient sintering according to claim 3 steam compensating turbine afterheat generating system, it is characterized in that circulating fan (8) but be provided with the benefit cold wind mouth (11) of switch before the import.
6. the two pressure exhaust heat boiler configuration of efficient sintering according to claim 1 and 2 steam compensating turbine afterheat generating system is characterized in that the air intake flue is provided with flue dust collector (13).
7. the two pressure exhaust heat boiler configuration of efficient sintering according to claim 3 steam compensating turbine afterheat generating system is characterized in that the air intake flue is provided with flue dust collector (13).
8. the two pressure exhaust heat boiler configuration of efficient sintering according to claim 4 steam compensating turbine afterheat generating system is characterized in that the air intake flue is provided with flue dust collector (13).
9. the two pressure exhaust heat boiler configuration of efficient sintering according to claim 5 steam compensating turbine afterheat generating system is characterized in that the air intake flue is provided with flue dust collector (13).
CNU2008200869996U 2008-05-12 2008-05-12 Steam compensating type steam turbine waste heat power generation system allocated with high-efficiency sintered double-pressure waste heat boiler CN201198771Y (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101825399A (en) * 2010-04-21 2010-09-08 中冶长天国际工程有限责任公司 Method and device for utilizing exhaust heat of waste gas in sinter cooler
CN101886556A (en) * 2010-06-28 2010-11-17 青岛捷能汽轮机集团股份有限公司 Steam compensating turbine
CN101922315A (en) * 2010-09-16 2010-12-22 青岛捷能汽轮机集团股份有限公司 Steam supplementing type turbine and steam supplementing device thereof
CN101749961B (en) * 2009-12-30 2012-02-29 北京世纪源博科技股份有限公司 Sintering product line saturated steam afterheat generating system
CN102505968A (en) * 2011-10-28 2012-06-20 屈胜涛 Power generation system utilizing waste heat in high-temperature industrial waste residues
CN102748958A (en) * 2012-07-19 2012-10-24 湖南永清环保股份有限公司 Waste heat utilization system for using waste heat of sintering flue gas by the aid of single-pressure double-channel waste heat boiler
CN102767821A (en) * 2012-06-27 2012-11-07 华北电力大学 Smoke waste heat deep utilization system of power station boiler for heating supplied water at high pressure
CN102767822A (en) * 2012-06-27 2012-11-07 华北电力大学 Integrated system for pre-heating air and condensed water of turbine in grading manner by using boiler smoke
CN103470322A (en) * 2013-08-21 2013-12-25 江苏凯茂石化科技有限公司 Formaldehyde process device capable of comprehensively recycling heat energy of byproduct steam
CN104329130A (en) * 2014-09-01 2015-02-04 黄守道 High heat efficiency medium and low temperature waste heat organic Rankin power circulating power generator system
CN105066713A (en) * 2015-07-21 2015-11-18 鞍钢集团工程技术有限公司 Process capable of improving waste heat recovery yield of annular cooler

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101749961B (en) * 2009-12-30 2012-02-29 北京世纪源博科技股份有限公司 Sintering product line saturated steam afterheat generating system
CN101825399A (en) * 2010-04-21 2010-09-08 中冶长天国际工程有限责任公司 Method and device for utilizing exhaust heat of waste gas in sinter cooler
CN101825399B (en) * 2010-04-21 2013-10-30 中冶长天国际工程有限责任公司 Method and device for utilizing exhaust heat of waste gas in sinter cooler
CN101886556A (en) * 2010-06-28 2010-11-17 青岛捷能汽轮机集团股份有限公司 Steam compensating turbine
CN101886556B (en) * 2010-06-28 2011-10-26 青岛捷能汽轮机集团股份有限公司 Steam compensating turbine
CN101922315A (en) * 2010-09-16 2010-12-22 青岛捷能汽轮机集团股份有限公司 Steam supplementing type turbine and steam supplementing device thereof
CN101922315B (en) * 2010-09-16 2011-10-26 青岛捷能汽轮机集团股份有限公司 Steam supplementing type turbine and steam supplementing device thereof
CN102505968A (en) * 2011-10-28 2012-06-20 屈胜涛 Power generation system utilizing waste heat in high-temperature industrial waste residues
CN102767821B (en) * 2012-06-27 2015-04-15 华北电力大学 Smoke waste heat deep utilization system of power station boiler for heating supplied water at high pressure
CN102767822B (en) * 2012-06-27 2015-04-22 华北电力大学 Integrated system for pre-heating air and condensed water of turbine in grading manner by using boiler smoke
CN102767821A (en) * 2012-06-27 2012-11-07 华北电力大学 Smoke waste heat deep utilization system of power station boiler for heating supplied water at high pressure
CN102767822A (en) * 2012-06-27 2012-11-07 华北电力大学 Integrated system for pre-heating air and condensed water of turbine in grading manner by using boiler smoke
CN102748958B (en) * 2012-07-19 2014-12-24 永清环保股份有限公司 Waste heat utilization system for using waste heat of sintering flue gas by the aid of single-pressure double-channel waste heat boiler
CN102748958A (en) * 2012-07-19 2012-10-24 湖南永清环保股份有限公司 Waste heat utilization system for using waste heat of sintering flue gas by the aid of single-pressure double-channel waste heat boiler
CN103470322A (en) * 2013-08-21 2013-12-25 江苏凯茂石化科技有限公司 Formaldehyde process device capable of comprehensively recycling heat energy of byproduct steam
CN104329130A (en) * 2014-09-01 2015-02-04 黄守道 High heat efficiency medium and low temperature waste heat organic Rankin power circulating power generator system
CN105066713A (en) * 2015-07-21 2015-11-18 鞍钢集团工程技术有限公司 Process capable of improving waste heat recovery yield of annular cooler
CN105066713B (en) * 2015-07-21 2017-04-19 鞍钢集团工程技术有限公司 Process capable of improving waste heat recovery yield of annular cooler

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Granted publication date: 20090225