CN104807339A - Power generation device and power generation method for comprehensively utilizing saturated steam of steel making and steel rolling - Google Patents
Power generation device and power generation method for comprehensively utilizing saturated steam of steel making and steel rolling Download PDFInfo
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- CN104807339A CN104807339A CN201510243350.5A CN201510243350A CN104807339A CN 104807339 A CN104807339 A CN 104807339A CN 201510243350 A CN201510243350 A CN 201510243350A CN 104807339 A CN104807339 A CN 104807339A
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Abstract
The invention relates to a power generation device for comprehensively utilizing saturated steam of steel making and steel rolling. The device comprises an electric generator 1, a steam turbine 2, a condenser 3, a steel rolling heating furnace steam pocket 5, a steel making converter steam pocket 6, a heat accumulator 7 connected with the steel making converter steam pocket 6 and a saturated steam heating boiler 8 with a saturated steam low-temperature overheater 806 and a saturated steam high-temperature overheater 807 internally. In the power generation process, steam in the steel rolling heating furnace steam pocket 5 and saturated steam in the heat accumulator 7 are conveyed into the saturated steam low-temperature overheater 806 for first overheating, then further pass through the steam high-temperature overheater 807 for second overheating, and then are conveyed to a steam inlet 201 of the steam turbine 2, so that the steam turbine 2 drives the electric generator 1 to carry out power generation.
Description
Technical field
The present invention relates to a kind of electricity generation system, be specifically related to a kind of coal gas and steel rolling and make steel saturated vapor and fully utilize TRT or system and electricity-generating method.
Background technology
Metallurgy industry produces a large amount of saturated vapors in process of production.This kind of saturated vapor, because energy figure is low, mostly as producing or life use.Be used for heating in producing, or be used as purging vapour; Be used as publilc baths, dining room and heating in life to use.But these consumptions are all considerably less, most saturated vapor is all direct discharge, wastes.Along with the development of technology, the requirement of energy-saving and emission-reduction policy and enterprise self reduce the needs of energy consumption, start now to develop low-grade exhaust heat.As screw expansion generator, saturated steam generating set, this kind equipment can directly utilize saturated vapor to produce electric energy, but this kind of price is high, and the thermal efficiency is very low, and the investment payback time is long.So directly saturated vapor utilizes the technology of generating to be never promoted.
Saturated vapor is heated into superheated steam, recycles traditional superheated steam turbine, will significantly improve efficiency of utilization, the reliability reducing equipment investment cost, raising equipment and system and service life.So saturated vapor is heated to be superheated steam, the Utilizing question of saturated vapor will be solved.As the patent No. 2013201608496, name is called that " a kind of novel converter, heater for rolling steel Steam Combined utilize electricity generation system " is sent to steam turbine power generation after being heated by saturated vapor again, but this this system only considered and saturated vapor is heated to be superheated steam, discharge a large amount of high-temperature flue gas (more than 500 DEG C), cause the thermal efficiency of system very low, also do not meet energy-conserving and environment-protective requirement.
Current Gas In Iron And Steel Works boiler technology is very ripe, combines as generated electricity with saturated vapor by gas boiler, reduces the Waste Heat Power Station disperseing to set up, improves the thermal efficiency simultaneously, will very have energy-conserving and environment-protective and economic implications.
Summary of the invention
The object of the present invention is to provide a kind of steel rolling steel-making saturated vapor comprehensive utilization TRT, by steel mill's residual gas, the comprehensive utilization of various equipment saturated vapor, produce the superheated steam generation of high-quality, make full use of waste heat simultaneously, reach energy-conservation object.
According to the first embodiment of the present invention, a kind of steel rolling steel-making saturated vapor comprehensive utilization TRT is provided, this device comprises: generator, steam turbine, condenser, heater for rolling steel drum, steelmaking converter drum, the storage heater be connected with steelmaking converter drum and there is in inside the saturated vapor heating boiler of saturated vapor low temperature superheater and saturated vapor high temperature superheater, it is characterized in that: the saturated vapor pipeline of heater for rolling steel drum and the saturated vapor pipeline of storage heater are connected to the steam inlet of the saturated vapor low temperature superheater being positioned at the overheated boiler of saturated vapor respectively, the steam (vapor) outlet of this saturated vapor low temperature superheater (806) is connected with the entrance of saturated vapor high temperature superheater, the outlet of the saturated vapor high temperature superheater of the overheated boiler of this saturated vapor is connected to the air intake of steam turbine, the rotating shaft of steam turbine connects or drives the rotating shaft of generator, with, the steam drain of steam turbine is connected to condenser.
Preferably, saturated vapor heating boiler has the configuration of " π " shape or " П " shape, wherein the side of " π " shape or " П " shape or right side set gradually saturated vapor heating boiler burner from top to bottom, the saturated vapor low temperature superheater of saturated vapor heating boiler, the saturated vapor high temperature superheater of saturated vapor heating boiler, and the opposite side of " π " shape or " П " shape or left side set gradually the evaporimeter of saturated vapor heating boiler and the economizer of saturated vapor heating boiler from top to bottom, and the top platform of " π " shape or " П " shape is the passage of combustion product gases, the left and right sides is by the combustion product gases channel connection in top platform portion.
Generally, the height h of burner
1(referring to the height of agent structure) is 1.0-10m, preferred 1.3-9m, more preferably 1.5-8m.Usually, the profile of burner is (similar) hexahedron or cube, such as, this burner has four furnace wall sides and is the one structure that rectangle and furnace bottom are rectangle (or cross section is rectangle), or the profile of this burner is cylindrical shape or oval cylinder.
Generally, the height h of the agent structure of the saturated vapor heating boiler of saturated vapor is heated
2for 3.5-40m (rice), preferred 4-35m (rice), more preferably 5-30m (rice), more preferably 7.5-25m (rice), as 13 meters or 14 meters.
Preferably, saturated vapor heating boiler drum is also provided with in saturated vapor heating boiler outside, from the saturated vapor pipeline that this saturated vapor heating boiler drum is drawn, the i.e. saturated vapor pipeline of the overheated boiler of saturated vapor, is also connected to the entrance of the saturated vapor low temperature superheater being positioned at the overheated boiler of saturated vapor.
Preferably, the hot water outlet of saturated vapor heating boiler economizer is connected to the first entrance of saturated vapor heating boiler drum by pipeline, first outlet of saturated vapor heating boiler drum is connected to the entrance of saturated vapor heating boiler evaporimeter by pipeline, the outlet of saturated vapor heating boiler evaporimeter is connected to the second entrance of saturated vapor heating boiler drum by pipeline, from the saturated vapor pipeline that the second outlet of saturated vapor heating boiler drum is drawn, the i.e. saturated vapor pipeline of the overheated boiler of saturated vapor, also the entrance of the saturated vapor low temperature superheater being positioned at the overheated boiler of saturated vapor is connected to.
Preferably, saturated vapor heating boiler also comprises: the saturated vapor heating boiler outlet bellows or the fan housing that are positioned at the cigarette airflow downstream of the economizer of saturated vapor heating boiler, the outlet bellows of saturated vapor heating boiler or fan housing are connected with air-introduced machine, and/or, the saturated vapor heating boiler attemperator between saturated vapor heating boiler saturated vapor low temperature superheater and saturated vapor heating boiler saturated vapor high temperature superheater.
Preferably, saturated vapor heating boiler burner comprises saturated vapor heating boiler burner, saturated vapor heating boiler furnace wall, saturated vapor heating boiler combustion chamber; Preferably, saturated vapor heating boiler combustion chamber is surrounded by saturated vapor heating boiler furnace wall, it is further preferred that saturated vapor heating boiler furnace wall adopts fire-resistant heat insulating material.
Preferably, saturated vapor heating boiler burner is arranged on saturated vapor heating boiler furnace wall; In addition, optionally, saturated vapor heating boiler furnace wall is also provided with saturated vapor heating boiler explosion proof door, saturated vapor heating boiler flame-observing hole and saturated vapor heating boiler wind-supplying mouth.
Preferably, saturated vapor heating boiler attemperator is positioned at the external world of saturated vapor heating boiler, and the two-port of saturated vapor heating boiler attemperator is connected to the steam (vapor) outlet of saturated vapor heating boiler saturated vapor low temperature superheater and the steam inlet of saturated vapor heating boiler saturated vapor high temperature superheater via two pipelines respectively; Preferably, the air-introduced machine of auxiliary equipment is provided as in the cigarette airflow downstream of economizer.
Preferably, air-introduced machine is connected by the outlet bellows of air-introduced machine airduct and saturated vapor heating boiler or fan housing, and/or, there is water pipe to be connected with the water inlet of saturated vapor heating boiler economizer.
Preferably, the gas inlet of the burner of saturated vapor heating boiler is connected with the airduct of gas piping and air blast respectively with air inlet.
Preferably, gas piping is provided with gas regulator.In addition, the coal gas that gas piping is carried is steel plant's residual gas.
Preferably, the heater for rolling steel drum saturated vapor pipeline of drawing from the steam (vapor) outlet of heater for rolling steel drum is in the steam inlet of saturated vapor low temperature superheater being connected to saturated vapor heating boiler with saturated vapor heating boiler saturated vapor pipeline, storage heater saturated vapor pipeline after converging further.
Preferably, heater for rolling steel drum saturated vapor pipeline, saturated vapor heating boiler saturated vapor pipeline and the storage heater saturated vapor pipeline of drawing from the steam (vapor) outlet of heater for rolling steel drum are connected with the steam inlet of the saturated vapor low temperature superheater of saturated vapor heating boiler respectively.
Preferably, heater for rolling steel drum saturated vapor pipeline is provided with heater for rolling steel drum control valve.
The steam (vapor) outlet of steelmaking converter drum is connected with the steam inlet of storage heater by steelmaking converter drum saturated vapor pipeline.
Preferably, steelmaking converter drum saturated vapor pipeline is provided with steelmaking converter drum check-valves, and/or steelmaking converter drum saturated vapor pipeline is provided with steelmaking converter drum control valve group.
Preferably, storage heater saturated vapor pipeline is provided with storage heater check-valves, and/or storage heater saturated vapor pipeline is provided with storage heater control valve group.
Preferably, the steam drain of steam turbine is connected to the steam inlet of condenser, and/or the condensate water outlet of condenser is connected with the entrance of condensate pump, and condensate pump outlet is connected with condensate pipe.
Preferably, condensate pipe is connected to steel-making and mill.Preferably, condensate pipe is connected to the water inlet of the economizer of saturated vapor heating boiler.
According to the second embodiment of the present invention, a kind of method providing steel rolling to make steel saturated vapor comprehensive utilization generating or a kind of method using said apparatus to generate electricity, the method comprises: the saturated vapor in heater for rolling steel drum and the saturated vapor in storage heater are transported to via heater for rolling steel drum saturated vapor pipeline and storage heater saturated vapor pipeline the saturated vapor low temperature superheater being arranged in the overheated boiler of saturated vapor respectively, and to carry out first time overheated, it is overheated and obtain high parameter saturated vapor or high temperature saturated vapor that then experience first time overheated saturated vapor carries out second time further by saturated vapor high temperature superheater, then high parameter saturated vapor or high temperature saturated vapor are delivered to the air intake of steam turbine via the first jet chimney, to allow Steam Turbine Driven generator generate electricity.
Preferably, said method comprises further: external feedwater is successively by saturated vapor heating boiler economizer, saturated vapor heating boiler evaporimeter is heated into saturated vapor, then, the saturated vapor formed is transferred via the saturated vapor pipeline of the overheated boiler of saturated vapor and carries out mixing with the saturated vapor of heater for rolling steel drum saturated vapor pipeline and the saturated vapor of storage heater saturated vapor pipeline and enter in saturated vapor heating boiler saturated vapor low temperature superheater that to carry out first time overheated, it is overheated and obtain high parameter saturated vapor or high temperature saturated vapor abbreviation superheated steam that then experience first time overheated saturated vapor carries out second time further by saturated vapor high temperature superheater, then high parameter saturated vapor or high temperature saturated vapor are delivered to the air intake of steam turbine via the first jet chimney, to allow Steam Turbine Driven generator generate electricity.
Preferably, external feedwater enters in saturated vapor heating boiler drum by the first entrance of saturated vapor heating boiler drum after the heating of saturated vapor heating boiler economizer, the hot water flowed out from the first outlet of saturated vapor heating boiler drum enters saturated vapor heating boiler evaporimeter, the steam water interface that saturated vapor heating boiler evaporimeter produces enters saturated vapor heating boiler drum from the second entrance of saturated vapor heating boiler drum, saturated vapor in saturated vapor heating boiler drum is discharged from second of saturated vapor heating boiler drum the outlet and is carried out being mixed and fed into saturated vapor heating boiler saturated vapor low temperature superheater that to carry out first time overheated via the conveying of saturated vapor heating boiler saturated vapor pipeline thus with the saturated vapor carried by heater for rolling steel drum saturated vapor pipeline and storage heater saturated vapor pipeline respectively, optionally again through supersaturated vapor heating boiler attemperator, then, enter in saturated vapor heating boiler saturated vapor high temperature heater (HTH) that to carry out second time overheated, the superheated steam obtained is delivered to the air intake of steam turbine via the first jet chimney, Steam Turbine Driven generator is allowed to generate electricity.
Preferably, coal gas enters the combustion chamber combustion of saturated vapor heating boiler burner through the burner of saturated vapor heating boiler burner and produces high-temperature flue gas, flue gas is upwards successively through supersaturated vapor heating boiler saturated vapor low temperature superheater, saturated vapor heating boiler saturated vapor high temperature superheater, again successively through supersaturated vapor heating boiler evaporimeter, saturated vapor heating boiler economizer, extract out finally by air-introduced machine.
Preferably, steelmaking converter drum produces the saturated vapor of interruption and is transported in storage heater via steelmaking converter drum saturated vapor pipeline.
Preferably, the steam of discharging from the steam drain of steam turbine enters condenser and forms condensate water; Preferably, the condensate water formed is transported to steel-making and mill or is transported to the water inlet of economizer of saturated vapor heating boiler, as a part for external feedwater or external feedwater.
Generally, the temperature that burning produces high-temperature flue gas is 600 ~ 1500 DEG C, and preferred 700-1400 DEG C, more selects 800-1200 DEG C.
Generally, the temperature of the flue gas that air-introduced machine (12) is discharged is 100-200 DEG C, preferred 120-180 DEG C, more preferably 140-160 DEG C.
Generally, in heater for rolling steel drum saturated vapor pipeline (L2), storage heater saturated vapor pipeline (L3) and saturated vapor heating boiler saturated vapor pipeline (L4), the temperature of three strands of saturated steam flowings is 150-250 DEG C, preferred 160-240 DEG C independently of one another.
Generally, the temperature of saturated vapor heating boiler saturated vapor low temperature superheater exit steam is 250-350 DEG C, preferred 260-340 DEG C.
Generally, the temperature of saturated vapor heating boiler saturated vapor high temperature superheater exit superheated steam is 360-450 DEG C, preferred 370-440 DEG C, more preferably 380-420 DEG C.
Generally, the pressure of the superheated steam of the saturated vapor high temperature superheater generation of the overheated boiler of saturated vapor is >=0.60MPa, preferably >=0.80MPa, more preferably >=1.0MPa, such as pressure is 0.6MPa-2.5MPa, preferred 0.8MPa-2.0MPa, more preferably 1.0MPa-1.8MPa.
Between saturated vapor high temperature superheater and saturated vapor low temperature superheater, be provided with attemperator, desuperheating water can be sprayed into when saturated vapor high temperature superheater outlet temperature is too high and suitably lower the temperature.
In the present invention, generating equipment can be connected to superheat steam pipeline by conventional equipment, utilizes the steam-electric power produced, then utilizes conventional equipment to be in store by electric energy or utilize conventional electrical power lines road to be transported to electrical network.
Production of the present invention refers to other equipment operations.The refractory material of the routine of fire-resistant heat insulating material of the present invention, does not have special requirement.Explosion proof door, flame-observing hole, air inlet are conventional design.Water of the present invention, secondary water are the conventional materials in this area.
Device and the technology of the non-specified otherwise of the present invention are this area conventional equipment and technology.
In this application, " optionally " expression is carried out or is not carried out." optional " expression is with or without.
Compared with prior art, Advantageous Effects of the present invention:
1, saturated vapor is heated to be superheated steam by the present invention, and the high-temperature smoke discharging made full use of after heating saturated vapor, both by solving the problem that saturated vapor generating efficiency is low, investment is large, service life is short, also take full advantage of Gas In Iron And Steel Works, the generating thermal efficiency significantly improves.
2, the gas to generate electricity that tradition disperseed of the present invention and saturated vapor generate electricity and integrate, and decrease the quantity of main building, reduce cost of investment, decrease operation and maintenance expense.
3, the coal gas in the present invention can utilize steel plant's residual gas, makes full use of fuel, avoids the wasting of resources.
4, condensate pump of the present invention condensate water out can be transported to other job shops, such as, make steel.Mill, recycles water resource.
5, the design of saturated steam heating pot stove in the present invention, the waste heat that the temperature of utilization is higher carrys out heating water, produces saturated vapor, avoids the loss of heat, solve the problem bringing environmental pollution thus simultaneously.
6, the equipment and technology in the present invention is ripe, and reliability is high.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structure chart.
Fig. 2 is the partial enlarged drawing of generator of the present invention, steam turbine, condenser, condensate pump.
Fig. 3 is steel rolling system assumption diagram of the present invention.
Fig. 4 is the overheated boiler partial enlarged drawing of saturated vapor of the present invention.
Fig. 5 is the overheated boiler combustion device partial enlarged drawing of saturated vapor of the present invention.
Fig. 6 is the overheated boiler-steam dome partial enlarged drawing of saturated vapor of the present invention.
Fig. 7 is saturated vapor overheat pan furnace apparatus schematic layout pattern of the present invention.
Reference numeral: 1, generator; 101, alternator shaft; 2, steam turbine; 201, steam turbine air intake; 202, rotating shaft of steam turbine; 203, turbine discharge mouth; 3, condenser; 301, condenser entrance; 302, condenser outlet; 4, condensate pump; 401, condensate pump entrance; 402, condensate pump outlet; 403, condensate pipe; 5, heater for rolling steel drum; 501, heater for rolling steel drum entrance; 502, heater for rolling steel drum outlet; 503, heater for rolling steel drum control valve; 6, steelmaking converter drum; 601, steelmaking converter drum entrance; 602, steelmaking converter drum outlet; 603, steelmaking converter drum control valve group; 604, steelmaking converter drum saturated vapor pipeline check-valves; 7, storage heater; 701, accumulator inlet; 702, accumulator outlet; 703, storage heater saturated vapor pipeline check-valves; 704, storage heater control valve group; 8, the overheated boiler of saturated vapor; 801, the overheated boiler combustion device of saturated vapor; 80101, saturated vapor overheat pan burner; 80102, the overheated boiler setting of saturated vapor; 80103, the overheated boiler furnace of saturated vapor; 80104, the overheated boiler anti-riot door of saturated vapor; 80105, the overheated boiler flame-observing hole of saturated vapor; 80106, (cold) air port mended by the overheated boiler of saturated vapor; 802, the overheated boiler desuperheater of saturated vapor; 803, the overheated boiler-steam dome of saturated vapor; 80301, saturated vapor overheated boiler-steam dome first entrance; 80302, the overheated boiler-steam dome of saturated vapor first exports; 80303, saturated vapor overheated boiler-steam dome second entrance; 80304, the overheated boiler-steam dome of saturated vapor second exports; 804, the overheated boiler evaporator of saturated vapor; 80401, the overheated boiler evaporator inlet of saturated vapor; 80402, the overheated boiler evaporator outlet of saturated vapor; 805, the overheated boiler economizer of saturated vapor; 80501, the overheated boiler economizer entrance of saturated vapor; 80502, the overheated boiler economizer exit of saturated vapor; 806, saturated vapor overheated boiler saturated vapor low temperature superheater, 80601, saturated vapor overheated boiler saturated vapor low temperature superheater entrance; 80602, saturated vapor overheated boiler saturated vapor low temperature superheater outlet; 807, saturated vapor overheated boiler saturated vapor high temperature superheater; 80701, saturated vapor overheated boiler saturated vapor high temperature superheater entrance; 80702, saturated vapor overheated boiler saturated vapor high temperature superheater outlet; 808, saturated vapor overheat pan outlet of still bellows or fan housing; 9, coal gas; 901, gas piping; 902, gas regulator; 10, water; 1001, water pipe; 11, air blast; 1101, air blast airduct; 12, air-introduced machine; 1201, air-introduced machine airduct; 13, desuperheating water; 1301, desuperheat water pipe; L1, superheat steam pipeline; L2, heater for rolling steel drum saturated vapor pipeline; L3, storage heater saturated vapor pipeline; L5, steelmaking converter drum saturated vapor pipeline; L4, saturated vapor overheated boiler saturated steam pipe road; L6, economizer exit pipeline; L7, evaporator inlet pipeline; L8, evaporator outlet pipeline.
Detailed description of the invention
Use a kind of steel rolling steel-making saturated vapor comprehensive utilization TRT in a specific embodiment, this device comprises: generator 1, steam turbine 2, condenser 3, heater for rolling steel drum 5, steelmaking converter drum 6, the storage heater 7 be connected with steelmaking converter drum 6 and the saturated vapor heating boiler 8 in inside with saturated vapor low temperature superheater 806 and saturated vapor high temperature superheater 807, it is characterized in that: the saturated vapor pipeline L2 of heater for rolling steel the drum 5 and saturated vapor pipeline L3 of storage heater 7 is connected to the entrance 80601 of the saturated vapor low temperature superheater 806 being positioned at the overheated boiler 8 of saturated vapor respectively, the outlet 80602 of this saturated vapor low temperature superheater 806 is connected with the entrance 80701 of saturated vapor high temperature superheater 807, the outlet 80702 of the saturated vapor high temperature superheater 807 of the overheated boiler 8 of this saturated vapor is connected to the air intake 201 of steam turbine 2, the rotating shaft 202 of steam turbine 2 connects or drives the rotating shaft 101 of generator 1, with, the steam drain 203 of steam turbine is connected to condenser 3.
Preferably, saturated vapor heating boiler 8 has the configuration of " π " shape or " П " shape, wherein the side of " π " shape or " П " shape or right side set gradually saturated vapor heating boiler burner 801 from top to bottom, the saturated vapor low temperature superheater 806 of saturated vapor heating boiler, the saturated vapor high temperature superheater 807 of saturated vapor heating boiler, and the opposite side of " π " shape or " П " shape or left side set gradually the evaporimeter 804 of saturated vapor heating boiler and the economizer 805 of saturated vapor heating boiler from top to bottom, and the top platform of " π " shape or " П " shape is the passage of combustion product gases, the left and right sides is by the combustion product gases channel connection in top platform portion.
Preferably, saturated vapor heating boiler drum 803 is also provided with in saturated vapor heating boiler 8 outside, from the saturated vapor pipeline L4 that this saturated vapor heating boiler drum 803 is drawn, the i.e. saturated vapor pipeline L4 of the overheated boiler 8 of saturated vapor, is also connected to the entrance 80601 of the saturated vapor low temperature superheater 806 being positioned at the overheated boiler 8 of saturated vapor.
Preferably, the hot water outlet 80502 of saturated vapor heating boiler economizer 805 is connected to the first entrance 80301 of saturated vapor heating boiler drum 803 by pipeline L6, first outlet 80302 of saturated vapor heating boiler drum 803 is connected to the entrance 80401 of saturated vapor heating boiler evaporimeter 804 by pipeline L7, the outlet 80402 of saturated vapor heating boiler evaporimeter 804 is connected to the second entrance 80303 of saturated vapor heating boiler drum 803 by pipeline L8, from the saturated vapor pipeline L4 that the second outlet 80304 of saturated vapor heating boiler drum 803 is drawn, the i.e. saturated vapor pipeline L4 of the overheated boiler 8 of saturated vapor, also the entrance 80601 of the saturated vapor low temperature superheater 806 being positioned at the overheated boiler 8 of saturated vapor is connected to.
Preferably, saturated vapor heating boiler 8 also comprises: the saturated vapor heating boiler outlet bellows or the fan housing 808 that are positioned at the cigarette airflow downstream of the economizer 805 of saturated vapor heating boiler 8, outlet bellows or the fan housing 808 of saturated vapor heating boiler 8 are connected with air-introduced machine 12, and/or, the saturated vapor heating boiler attemperator 802 between saturated vapor heating boiler saturated vapor low temperature superheater 806 and saturated vapor heating boiler saturated vapor high temperature superheater 807.
Preferably, saturated vapor heating boiler burner 801 comprises saturated vapor heating boiler burner 80101, saturated vapor heating boiler furnace wall 80102, saturated vapor heating boiler combustion chamber 80103; Preferably, saturated vapor heating boiler combustion chamber 80103 is surrounded by saturated vapor heating boiler furnace wall 80102, it is further preferred that saturated vapor heating boiler furnace wall 80102 adopts fire-resistant heat insulating material.
Preferably, saturated vapor heating boiler burner 80101 is arranged on saturated vapor heating boiler furnace wall 80102; In addition, optionally, saturated vapor heating boiler furnace wall is also provided with saturated vapor heating boiler explosion proof door 80104, saturated vapor heating boiler flame-observing hole 80105 and saturated vapor heating boiler and mends cold wind mouth 80106.
Preferably, saturated vapor heating boiler attemperator 802 is positioned at the external world of saturated vapor heating boiler, and the two-port of saturated vapor heating boiler attemperator 802 is connected to the steam (vapor) outlet 80602 of saturated vapor heating boiler saturated vapor low temperature superheater 806 and the steam inlet 80701 of saturated vapor heating boiler saturated vapor high temperature superheater 807 via two pipelines respectively; Preferably, the air-introduced machine 12 of auxiliary equipment is provided as in the cigarette airflow downstream of economizer 805.
Preferably, air-introduced machine 12 is connected by the outlet bellows of air-introduced machine airduct 1201 and saturated vapor heating boiler 8 or fan housing 808, and/or, there is water pipe 10 to be connected with the water inlet 80501 of saturated vapor heating boiler economizer 805.
Preferably, the gas inlet of the burner 80101 of saturated vapor heating boiler 8 is connected with the airduct 1101 of gas piping 901 and air blast 11 respectively with air inlet.
Preferably, gas piping 901 is provided with gas regulator 902.In addition, the coal gas 9 that gas piping 901 is carried is steel plant's residual gas.
Preferably, the heater for rolling steel drum saturated vapor pipeline L2 drawn from the steam (vapor) outlet 502 of heater for rolling steel drum 5 is being connected to the steam inlet 80601 of the saturated vapor low temperature superheater 806 of saturated vapor heating boiler 8 further with saturated vapor heating boiler saturated vapor pipeline L4, storage heater saturated vapor pipeline L3 after converging.
Preferably, the heater for rolling steel drum saturated vapor pipeline L2, saturated vapor heating boiler saturated vapor pipeline L4 and the storage heater saturated vapor pipeline L3 that draw from the steam (vapor) outlet 502 of heater for rolling steel drum 5 are connected with the steam inlet 80601 of the saturated vapor low temperature superheater 806 of saturated vapor heating boiler 8 respectively.
Preferably, heater for rolling steel drum saturated vapor pipeline L2 is provided with accumulator inlet steam pressure control valve group 503.
Preferably, the steam (vapor) outlet 602 of steelmaking converter drum 6 is connected with the steam inlet 701 of storage heater 7 by steelmaking converter drum saturated vapor pipeline L5.
Preferably, steelmaking converter drum saturated vapor pipe outlet pipe L5 is provided with check-valves 604, and/or steelmaking converter drum saturated vapor pipeline L5 is provided with accumulator inlet steam pressure control valve group 603.
Preferably, storage heater saturated vapor pipeline L3 is provided with check-valves 703, and/or storage heater saturated vapor pipeline L3 is provided with accumulator outlet steam pressure control valve group 704.
Preferably, the steam drain 203 of steam turbine 2 is connected to the steam inlet 301 of condenser 3, and/or the condensate water outlet 302 of condenser 3 is connected with the entrance 401 of condensate pump 4, and condensate pump outlet 402 is connected with condensate pipe 403.
Preferably, condensate pipe 403 is connected to steel-making and mill.Preferably, condensate pipe 403 is connected to the water inlet 80501 of the economizer 805 of saturated vapor heating boiler 8.
A kind of method also providing steel rolling to make steel saturated vapor comprehensive utilization generating or a kind of method using said apparatus to generate electricity, the method comprises: the saturated vapor in the saturated vapor in heater for rolling steel drum 5 and storage heater 7 is transported to via heater for rolling steel drum saturated vapor pipeline L2 and storage heater saturated vapor pipeline L3 the saturated vapor low temperature superheater 806 being arranged in the overheated boiler of saturated vapor 8 respectively, and to carry out first time overheated, it is overheated and obtain high parameter saturated vapor or high temperature saturated vapor that then experience first time overheated saturated vapor carries out second time further by saturated vapor high temperature superheater 807, then high parameter saturated vapor or high temperature saturated vapor are delivered to the air intake 201 of steam turbine 2 via the first jet chimney L1, to allow steam turbine 2 drive generator 1 to generate electricity.
Preferably, said method comprises further: external feedwater 10 is successively by saturated vapor heating boiler economizer 805, saturated vapor heating boiler evaporimeter 804 is heated into saturated vapor, then, the saturated vapor formed is transferred via the saturated vapor pipeline L4 of the overheated boiler of saturated vapor 8 and carries out mixing with the saturated vapor of the saturated vapor of heater for rolling steel drum 5 saturated vapor pipeline L2 and storage heater 7 saturated vapor pipeline L3 and enter in saturated vapor heating boiler saturated vapor low temperature superheater 806 that to carry out first time overheated, it is overheated and obtain high parameter saturated vapor or high temperature saturated vapor abbreviation superheated steam that then experience first time overheated saturated vapor carries out second time further by saturated vapor high temperature superheater 807, then high parameter saturated vapor or high temperature saturated vapor are delivered to the air intake 201 of steam turbine 2 via the first jet chimney L1, to allow steam turbine 2 drive generator 1 to generate electricity.
Preferably, external feedwater 10 enters in saturated vapor heating boiler drum 803 by the first entrance 80301 of saturated vapor heating boiler drum 803 after the heating of saturated vapor heating boiler economizer 805, the hot water flowed out from the first outlet 80302 of saturated vapor heating boiler drum 803 enters saturated vapor heating boiler evaporimeter 804, the steam water interface that saturated vapor heating boiler evaporimeter 804 produces enters saturated vapor heating boiler drum 803 from the second entrance 80303 of saturated vapor heating boiler drum 803, saturated vapor in saturated vapor heating boiler drum 803 is discharged from second of saturated vapor heating boiler drum 803 the outlet 80304 and is carried via saturated vapor heating boiler saturated vapor pipeline L4 thus carry out being mixed and fed into saturated vapor heating boiler saturated vapor low temperature superheater 806 that to carry out first time overheated with the saturated vapor carried by heater for rolling steel drum saturated vapor pipeline L2 and storage heater saturated vapor pipeline L3 respectively, optionally again through supersaturated vapor heating boiler attemperator 802, then, enter in saturated vapor heating boiler saturated vapor high temperature heater (HTH) 807 that to carry out second time overheated, the superheated steam obtained is delivered to the air intake 201 of steam turbine 2 via the first jet chimney L1, steam turbine 2 is allowed to drive generator 1 to generate electricity.
Preferably, coal gas 9 enters combustion chamber 80103 combustion of saturated vapor heating boiler burner 801 through the burner 80101 of saturated vapor heating boiler 8 burner 801 and produces high-temperature flue gas, flue gas is upwards successively through supersaturated vapor heating boiler saturated vapor low temperature superheater 806, saturated vapor heating boiler saturated vapor high temperature superheater 807, again successively through supersaturated vapor heating boiler evaporimeter 804, saturated vapor heating boiler economizer 805, extract out finally by air-introduced machine 12.
Preferably, steelmaking converter drum 6 produces the saturated vapor of interruption and is transported in storage heater 7 via steelmaking converter drum saturated vapor pipeline L5.
Preferably, the steam of discharging from the steam drain 203 of steam turbine 2 enters condenser 3 and forms condensate water; Preferably, the condensate water formed is transported to steel-making and mill or is transported to the water inlet 80501 of economizer 805 of saturated vapor heating boiler 8, as a part for external feedwater 10 or external feedwater 10.
Generally, the temperature that burning produces high-temperature flue gas is 600 ~ 1500 DEG C, preferred 700-1400 DEG C, more preferably 800-1200 DEG C.
Generally, the temperature of the flue gas that air-introduced machine 12 is discharged is 100-200 DEG C, preferred 120-180 DEG C, more preferably 140-160 DEG C.
Generally, in heater for rolling steel drum saturated vapor pipeline L2, storage heater saturated vapor pipeline L3 and saturated vapor heating boiler saturated vapor pipeline L4, the temperature of three strands of saturated steam flowings is 150-250 DEG C, preferred 160-240 DEG C independently of one another.
Generally, the temperature that saturated vapor heating boiler saturated vapor low temperature superheater exports 80602 place's steam is 250-350 DEG C, preferred 260-340 DEG C.
Generally, the temperature that saturated vapor heating boiler saturated vapor high temperature superheater exports 80702 place's superheated steams is 360-450 DEG C, preferred 370-440 DEG C, more preferably 380-420 DEG C.
Generally, the pressure of the superheated steam of saturated vapor high temperature superheater 807 generation of the overheated boiler 8 of saturated vapor is >=0.60MPa, preferably >=0.80MPa, more preferably >=1.0MPa, such as pressure is 0.6MPa-2.5MPa, preferred 0.8MPa-2.0MPa, more preferably 1.0MPa-1.8MPa.
Embodiment 1
A kind of steel rolling steel-making saturated vapor comprehensive utilization TRT, this device comprises: generator 1, the steam turbine 2 be connected with generator 1, rotating shaft of steam turbine 202 drives engine shaft 101, heater for rolling steel drum 5 is connected with saturated vapor heating boiler 8 with storage heater 7, saturated vapor heating boiler 8 is connected with steam turbine 2, and storage heater 7 is connected with steelmaking converter drum 6.Saturated vapor heating boiler 8 has the configuration of " π " shape or " П " shape, wherein the side of " π " shape or " П " shape sets gradually saturated vapor heating boiler burner 801 from top to bottom, saturated vapor heating boiler saturated vapor low temperature superheater 806, saturated vapor heating boiler saturated vapor high temperature superheater 807, and the opposite side of " π " shape or " П " shape sets gradually saturated vapor heating boiler evaporimeter 804 and saturated vapor heating boiler economizer 805 from top to bottom, and the top platform of " π " shape or " П " shape is the passage of combustion product gases, the left and right sides is by the combustion product gases channel connection in top platform portion.Device outside top is also provided with drum 803.
Saturated vapor heating boiler also comprises: the saturated vapor heating boiler outlet bellows or the fan housing 808 that are positioned at the cigarette airflow downstream of saturated vapor heating boiler economizer 805, saturated vapor heating boiler outlet bellows or fan housing 808 are connected with air-introduced machine 12.
Saturated vapor heating boiler attemperator 802 between saturated vapor heating boiler saturated vapor low temperature superheater 806 and saturated vapor heating boiler saturated vapor high temperature superheater 807.
Saturated vapor heating boiler burner 801 is made up of saturated vapor heating boiler burner 80101, saturated vapor heating boiler furnace wall 80102, saturated vapor heating boiler combustion chamber 80103.
Saturated vapor heating boiler combustion chamber 80103 is surrounded by saturated vapor heating boiler furnace wall 80102, and saturated vapor heating boiler furnace wall 80102 adopts fire-resistant heat insulating material.
Saturated vapor heating boiler burner 80101 is arranged on saturated vapor heating boiler furnace wall 80102, saturated vapor heating boiler furnace wall is also provided with saturated vapor heating boiler explosion proof door 80104, saturated vapor heating boiler flame-observing hole 80105 and saturated vapor heating boiler and mends cold wind mouth 80106.
Saturated vapor heating boiler attemperator 802 is positioned at the external world of saturated vapor heating boiler, and the two-port of saturated vapor heating boiler attemperator 802 is connected to the steam (vapor) outlet 80602 of saturated vapor heating boiler saturated vapor low temperature superheater and the steam inlet 80701 of saturated vapor heating boiler saturated vapor high temperature superheater via two pipelines respectively.
Saturated vapor heating boiler economizer 805 is connected with saturated vapor heating boiler drum 803 by pipeline with saturated vapor heating boiler evaporimeter 804, wherein the first entrance 80301 of saturated vapor heating boiler drum 803 is connected with the outlet 80502 of saturated vapor heating boiler economizer, and the first outlet 80302 of saturated vapor heating boiler drum 803 is connected with the entrance 80401 of saturated vapor heating boiler evaporimeter 804.
The outlet 80402 of saturated vapor heating boiler evaporimeter 804 is connected with the second entrance 80303 of saturated vapor heating boiler drum 803, is connected after the saturated vapor heating boiler saturated vapor pipeline L4 of the second outlet 80304 extraction of saturated vapor heating boiler drum 803 converges with external saturated vapor pipeline L2, L3 with the steam inlet 80601 of saturated vapor heating boiler saturated vapor low temperature superheater again.
Air-introduced machine 12 exports bellows by air-introduced machine airduct 1201 with saturated vapor heating boiler or fan housing 808 is connected.
Water 10 is connected with saturated vapor heating boiler economizer entrance 80501 by water pipe 1001.
Coal gas 9 is connected with saturated vapor heating boiler burner 80101 by gas piping 901.
Air blast 11 is connected with saturated vapor heating boiler burner 80101 by air blast airduct 1101.
Gas piping 901 is provided with gas regulator 902.
Coal gas 9 is steel plant's residual gas.
The outlet 502 of heater for rolling steel drum 5, by after heater for rolling steel drum saturated vapor pipeline L2 and saturated vapor heating boiler saturated vapor pipeline L4, storage heater saturated vapor pipeline L3 mixing, is connected with saturated vapor heating boiler saturated vapor low temperature superheater entrance 80601.
Heater for rolling steel drum saturated vapor pipeline L2 is provided with heater for rolling steel steam pressure control valve 503.
The outlet 602 of steelmaking converter drum 6 is connected with the entrance 701 of storage heater 7 by steelmaking converter drum saturated vapor pipeline L5, accumulator outlet 702, by after storage heater saturated vapor pipeline L3 and heater for rolling steel drum saturated vapor pipeline L2, saturated vapor heating boiler saturated vapor pipeline L4 mixing, is connected with saturated vapor heating boiler saturated vapor low temperature superheater entrance 80601.
Steelmaking converter drum saturated vapor pipeline L5 is provided with check-valves 604.
Steelmaking converter drum saturated vapor pipeline L5 is provided with accumulator inlet steam pressure control valve group 603, and control valve group is made up of 1 ~ 2 group of control valve.
Storage heater saturated vapor pipeline L3 is provided with check-valves 703.
Storage heater saturated vapor pipeline L3 is provided with accumulator outlet steam pressure control valve group 704, and control valve group is made up of 1 ~ 2 group of control valve.
Embodiment 2
Repeat embodiment 1, just saturated vapor heating boiler saturated vapor pipeline L4 is connected with the steam inlet 80601 of saturated vapor heating boiler saturated vapor low temperature superheater respectively with external saturated vapor pipeline L2, L3.
Embodiment 3
Repeat embodiment 1, just it also comprises the condenser 3 be connected with the steam drain 203 of steam turbine 2.Condenser outlet 302 is connected with the entrance 401 of condensate pump 4, and condensate pump outlet 402 is connected with condensate pipe 403.Condensate pipe 403 connects steel-making and mill.
Embodiment 4
A kind of method of steel rolling steel-making saturated vapor comprehensive utilization generating, the method comprises coal gas 9 and enters combustion chamber 80103 combustion of saturated vapor heating boiler burner 801 through saturated vapor heating boiler burner 80101 and produce high-temperature flue gas, flue gas is upwards successively through supersaturated vapor heating boiler saturated vapor low temperature superheater 806, saturated vapor heating boiler saturated vapor high temperature superheater 807, again successively through supersaturated vapor heating boiler evaporimeter 804, saturated vapor heating boiler economizer 805, then discharge through air-introduced machine 12; external feedwater 10 enters the first entrance 80301 of saturated vapor heating boiler drum 803 again after the heating of saturated vapor heating boiler economizer 805, the hot water flowed out from the first outlet 80302 of saturated vapor heating boiler drum 803 enters saturated vapor heating boiler evaporimeter 804, the steam water interface that saturated vapor heating boiler evaporimeter 804 produces enters saturated vapor heating boiler drum 803 from the second entrance 80303 of saturated vapor heating boiler drum 803, steam in saturated vapor heating boiler drum 803 exports 80304 through saturated vapor heating boiler saturated vapor pipeline L4 and heater for rolling steel drum saturated vapor pipeline L2 from second of saturated vapor heating boiler drum 803, through being transfused in saturated vapor heating boiler saturated vapor low temperature superheater 806 by the entrance 80601 of saturated vapor heating boiler saturated vapor low temperature superheater 806 after storage heater saturated vapor pipeline L3 collects, allow steam in saturated vapor heating boiler saturated vapor low temperature superheater 806, carry out first time overheated, optionally again through supersaturated vapor heating boiler attemperator 802, then, enter in saturated vapor heating boiler saturated vapor high temperature heater (HTH) 807 that to carry out second time overheated, the superheated steam obtained connects the entrance 201 of steam turbine 2 from the steam (vapor) outlet 80702 of saturated vapor heating boiler saturated vapor high temperature heater (HTH) 807, steam turbine 2 rotating shaft 202 drives the rotating shaft 101 of generator 1 to generate electricity.
Wherein, heater for rolling steel drum saturated vapor pipeline L2 connects the outlet 502 of heater for rolling steel drum 5, and heater for rolling steel drum 5 produces saturated vapor,
Wherein, steelmaking converter drum 6 produces the saturated vapor be interrupted, the outlet 602 of steelmaking converter drum 6 is connected with the entrance 701 of storage heater 7 by steelmaking converter drum saturated vapor pipeline L5, and storage heater 7 produces continuous print saturated vapor, and accumulator outlet 702 connects storage heater saturated vapor pipeline L3.
The temperature that burning produces high-temperature flue gas is 600 ~ 1500 DEG C, the temperature of the flue gas that air-introduced machine is discharged is 100-200 DEG C, in heater for rolling steel drum saturated vapor pipeline L2, storage heater saturated vapor pipeline L3 and saturated vapor heating boiler saturated vapor pipeline L4, the temperature of saturated vapor is 150-250 DEG C, the temperature that saturated vapor heating boiler saturated vapor low temperature superheater exports 80602 place's steam is 250-350 DEG C, and the temperature that saturated vapor heating boiler saturated vapor high temperature superheater exports 80702 place's superheated steams is 360-450 DEG C.
Embodiment 5
Repeat embodiment 4, just saturated vapor heating boiler saturated vapor pipeline L4 is connected with the steam inlet 80601 of saturated vapor heating boiler saturated vapor low temperature superheater respectively with external saturated vapor pipeline L2, L3.
Embodiment 6
Repeat embodiment 3, just burning produces the temperature of high-temperature flue gas is 700-1400 DEG C, the temperature of flue gas that air-introduced machine is discharged is 120-180 DEG C, and in heater for rolling steel drum saturated vapor pipeline L2, storage heater saturated vapor pipeline L3 and saturated vapor heating boiler saturated vapor pipeline L4, the temperature of saturated vapor is 160-240 DEG C.The temperature that saturated vapor heating boiler saturated vapor low temperature superheater exports 80602 place's steam is 260-340 DEG C.The temperature that saturated vapor heating boiler saturated vapor high temperature superheater exports 80702 place's superheated steams is 370-440 DEG C.
Embodiment 7
A kind of method of steel rolling steel-making saturated vapor comprehensive utilization generating, the method comprises coal gas 9 and enters combustion chamber 80103 combustion of saturated vapor heating boiler burner 801 through saturated vapor heating boiler burner 80101 and produce high-temperature flue gas, flue gas is upwards successively through supersaturated vapor heating boiler saturated vapor low temperature superheater 806, saturated vapor heating boiler saturated vapor high temperature superheater 807, again successively through supersaturated vapor heating boiler evaporimeter 804, saturated vapor heating boiler economizer 805, then discharge through air-introduced machine 12, heater for rolling steel drum saturated vapor pipeline L2, through being transfused in saturated vapor heating boiler saturated vapor low temperature superheater 806 by the entrance 80601 of saturated vapor heating boiler saturated vapor low temperature superheater 806 after storage heater saturated vapor pipeline L3 collects, allow steam in saturated vapor heating boiler saturated vapor low temperature superheater 806, carry out first time overheated, optionally again through supersaturated vapor heating boiler attemperator 802, then, enter in saturated vapor heating boiler saturated vapor high temperature heater (HTH) 807 that to carry out second time overheated, the superheated steam obtained connects the entrance 201 of steam turbine 2 from the steam (vapor) outlet 80702 of saturated vapor heating boiler saturated vapor high temperature heater (HTH) 807, the rotating shaft 202 of steam turbine drives the rotating shaft 101 of generator 1 to generate electricity, in addition in the process of aforesaid operations, external feedwater 10 enters the first entrance 80301 of saturated vapor heating boiler drum 803 again after the heating of saturated vapor heating boiler economizer 805, the hot water flowed out from the first outlet 80302 of saturated vapor heating boiler drum 803 enters saturated vapor heating boiler evaporimeter 804, the steam water interface that saturated vapor heating boiler evaporimeter 804 produces enters saturated vapor heating boiler drum 803 from the second entrance 80303 of saturated vapor heating boiler drum 803, steam in saturated vapor heating boiler drum 803 is transfused to saturated vapor heating boiler saturated vapor low temperature superheater 806 by the entrance 80601 of saturated vapor heating boiler saturated vapor low temperature superheater 806 from the second outlet 80304 of saturated vapor heating boiler drum 803 through saturated vapor heating boiler saturated vapor pipeline L4.
Wherein, heater for rolling steel drum saturated vapor pipeline L2 connects the outlet 502 of heater for rolling steel drum 5, and heater for rolling steel drum 5 produces saturated vapor.
Wherein, steelmaking converter drum 6 produces the saturated vapor be interrupted, the outlet 602 of steelmaking converter drum 6 is connected with the entrance 701 of storage heater 7 by steelmaking converter drum saturated vapor pipeline L5, and storage heater 7 produces continuous print saturated vapor, and accumulator outlet 702 connects storage heater saturated vapor pipeline L3.
As preferably, the temperature that burning produces high-temperature flue gas is 600 ~ 1500 DEG C, and preferred 700-1400 DEG C, more selects 800-1200 DEG C.
As preferably, the temperature of the flue gas that air-introduced machine is discharged is 100-200 DEG C, preferred 120-180 DEG C, more preferably 140-160 DEG C.
As preferably, in heater for rolling steel drum saturated vapor pipeline L2, storage heater saturated vapor pipeline L3 and saturated vapor heating boiler saturated vapor pipeline L4, the temperature of saturated vapor is 150-250 DEG C, preferred 160-240 DEG C.
As preferably, the temperature that saturated vapor heating boiler saturated vapor low temperature superheater exports 80602 place's steam is 250-350 DEG C, preferred 260-340 DEG C.
As preferably, the temperature that saturated vapor heating boiler saturated vapor high temperature superheater exports 80702 place's superheated steams is 360-450 DEG C, preferred 370-440 DEG C, more preferably 380-420 DEG C.
Embodiment 8
Repeat embodiment 5, just burning produces the temperature of high-temperature flue gas is 800-1200 DEG C.The temperature of the flue gas that air-introduced machine is discharged is 140-160 DEG C.In heater for rolling steel drum saturated vapor pipeline L2, storage heater saturated vapor pipeline L3 and saturated vapor heating boiler saturated vapor pipeline L4, the temperature of saturated vapor is 160-240 DEG C.The temperature that saturated vapor heating boiler saturated vapor low temperature superheater exports 80602 place's steam is 260-340 DEG C.The temperature that saturated vapor heating boiler saturated vapor high temperature superheater exports 80702 place's superheated steams is 380-420 DEG C.
Amount to the saturated vapor of 1.2MPa, 30t/h and be utilized as to make steel steel rolling the beneficial effect that example illustrates this programme below:
Adopt this programme, saturated vapor is heated to 430 DEG C, needs 14000Nm
3the blast furnace gas of/h; It is 9t/h that fume afterheat can produce quantity of steam, 1.2MPa (disregarding crushing), the superheated steam 39t/h of 430 DEG C can be obtained like this, generating capacity is 8000kW, can build the generating main building of a conventional 9MW and supporting circulation water station, operation maintenance personnel 24 people.
After saturated vapor is heated, do not set up heat recovery boiler, then lose the saturated vapours 9t/h of 1.2MP, be equivalent to lose generating capacity 1125kW.
Adopt conventional saturated vapor generating, the saturated vapor of 30t/h can generate electricity 3750kW; 14000Nm
3/ h blast furnace gas can generate electricity 3340kW, adds up to 7090kW; Need disperse to set up two generating main buildings and supporting circulation water station, operation maintenance personnel 40 people.
As can be seen from upper 3 kinds of scheme comparison, this programme than not setting up the scheme of waste heat recovery to improve 16.4%, improves 12.8% than the scheme of saturated vapor generating in generating capacity; Compared with the scheme generated electricity with saturated vapor, this programme investment of occupation of land reduces about 35%.Operation maintenance personnel reduce 40%.
Claims (22)
1. a steel rolling steel-making saturated vapor comprehensive utilization TRT, this device comprises: generator (1), steam turbine (2), condenser (3), heater for rolling steel drum (5), steelmaking converter drum (6), the storage heater (7) be connected with steelmaking converter drum (6) and the saturated vapor heating boiler (8) in inside with saturated vapor low temperature superheater (806) and saturated vapor high temperature superheater (807), it is characterized in that: the saturated vapor pipeline (L2) of heater for rolling steel drum (5) and the saturated vapor pipeline (L3) of storage heater (7) are connected to the entrance (80601) of the saturated vapor low temperature superheater (806) being positioned at the overheated boiler of saturated vapor (8) respectively, the outlet (80602) of this saturated vapor low temperature superheater (806) is connected with the entrance (80701) of saturated vapor high temperature superheater (807), the outlet (80702) of the saturated vapor high temperature superheater (807) of the overheated boiler of this saturated vapor (8) is connected to the air intake (201) of steam turbine (2), the rotating shaft (202) of steam turbine (2) connects or drives the rotating shaft (101) of generator (1), with, the steam drain (203) of steam turbine is connected to condenser (3).
2. device according to claim 1, wherein saturated vapor heating boiler (8) has the configuration of " π " shape or " П " shape, wherein the side of " π " shape or " П " shape or right side set gradually saturated vapor heating boiler burner (801) from top to bottom, the saturated vapor low temperature superheater (806) of saturated vapor heating boiler, the saturated vapor high temperature superheater (807) of saturated vapor heating boiler, and the opposite side of " π " shape or " П " shape or left side set gradually the evaporimeter (804) of saturated vapor heating boiler and the economizer (805) of saturated vapor heating boiler from top to bottom, and the top platform of " π " shape or " П " shape is the passage of combustion product gases, the left and right sides is by the combustion product gases channel connection in top platform portion.
3. device according to claim 1 and 2, wherein, saturated vapor heating boiler drum (803) is also provided with in saturated vapor heating boiler (8) outside, from the saturated vapor pipeline (L4) that this saturated vapor heating boiler drum (803) is drawn, the i.e. saturated vapor pipeline (L4) of the overheated boiler of saturated vapor (8), is also connected to the entrance (80601) of the saturated vapor low temperature superheater (806) being positioned at the overheated boiler of saturated vapor (8).
4. device according to claim 3, wherein, the hot water outlet (80502) of saturated vapor heating boiler economizer (805) is connected to first entrance (80301) of saturated vapor heating boiler drum (803) by pipeline (L6), first outlet (80302) of saturated vapor heating boiler drum (803) is connected to the entrance (80401) of saturated vapor heating boiler evaporimeter (804) by pipeline (L7), the outlet (80402) of saturated vapor heating boiler evaporimeter (804) is connected to second entrance (80303) of saturated vapor heating boiler drum (803) by pipeline (L8), from the saturated vapor pipeline (L4) that the second outlet (80304) of saturated vapor heating boiler drum (803) is drawn, the i.e. saturated vapor pipeline (L4) of the overheated boiler of saturated vapor (8), also the entrance (80601) of the saturated vapor low temperature superheater (806) being positioned at the overheated boiler of saturated vapor (8) is connected to.
5. the device according to Claims 2 or 3 or 4, it is characterized in that: saturated vapor heating boiler (8) also comprises: the saturated vapor heating boiler outlet bellows or the fan housing (808) that are positioned at the cigarette airflow downstream of the economizer (805) of saturated vapor heating boiler (8), outlet bellows or the fan housing (808) of saturated vapor heating boiler (8) are connected with air-introduced machine (12), and/or, be positioned at the saturated vapor heating boiler attemperator (802) between saturated vapor heating boiler saturated vapor low temperature superheater (806) and saturated vapor heating boiler saturated vapor high temperature superheater (807).
6. according to the device in claim 2-5 described in any one, it is characterized in that: saturated vapor heating boiler burner (801) comprises saturated vapor heating boiler burner (80101), saturated vapor heating boiler furnace wall (80102), saturated vapor heating boiler combustion chamber (80103); Preferably, saturated vapor heating boiler combustion chamber (80103) is surrounded by saturated vapor heating boiler furnace wall (80102), it is further preferred that saturated vapor heating boiler furnace wall (80102) adopts fire-resistant heat insulating material.
7. device according to claim 6, is characterized in that: saturated vapor heating boiler burner (80101) is arranged on saturated vapor heating boiler furnace wall (80102); In addition, optionally, saturated vapor heating boiler furnace wall is also provided with saturated vapor heating boiler explosion proof door (80104), saturated vapor heating boiler flame-observing hole (80105) and saturated vapor heating boiler wind-supplying mouth (80106).
8. device according to claim 5, it is characterized in that: saturated vapor heating boiler attemperator (802) is positioned at the external world of saturated vapor heating boiler, the two-port of saturated vapor heating boiler attemperator (802) is connected to the steam (vapor) outlet (80602) of saturated vapor heating boiler saturated vapor low temperature superheater (806) and the steam inlet (80701) of saturated vapor heating boiler saturated vapor high temperature superheater (807) via two pipelines respectively; Preferably, the air-introduced machine (12) of auxiliary equipment is provided as in the cigarette airflow downstream of economizer (805).
9. according to the device in claim 5-8 described in any one, it is characterized in that: air-introduced machine (12) is connected by the outlet bellows of air-introduced machine airduct (1201) and saturated vapor heating boiler (8) or fan housing (808), and/or, there is water pipe (10) to be connected with the water inlet (80501) of saturated vapor heating boiler economizer (805).
10. according to the device in claim 6-9 described in any one, it is characterized in that: the gas inlet of the burner (80101) of saturated vapor heating boiler (8) is connected with the airduct (1101) of gas piping (901) and air blast (11) respectively with air inlet.
11. according to the device in claim 3-10 described in any one, it is characterized in that: heater for rolling steel drum saturated vapor pipeline (L2) of drawing from the steam (vapor) outlet (502) of heater for rolling steel drum (5) is converging the rear steam inlet (80601) being connected to the saturated vapor low temperature superheater (806) of saturated vapor heating boiler (8) further with saturated vapor heating boiler saturated vapor pipeline (L4), storage heater saturated vapor pipeline (L3), and/or
Heater for rolling steel drum saturated vapor pipeline (L2), saturated vapor heating boiler saturated vapor pipeline (L4) and the storage heater saturated vapor pipeline (L3) of drawing from the steam (vapor) outlet (502) of heater for rolling steel drum (5) are connected with the steam inlet (80601) of the saturated vapor low temperature superheater (806) of saturated vapor heating boiler (8) respectively; And/or
Heater for rolling steel drum saturated vapor pipeline (L2) is provided with heater for rolling steel drum control valve (503).
12., according to the device in claim 1-11 described in any one, is characterized in that: the steam (vapor) outlet (602) of steelmaking converter drum (6) is connected with the steam inlet (701) of storage heater (7) by steelmaking converter drum saturated vapor pipeline (L5).
13. devices according to claim 13, it is characterized in that: the steam drain (203) of steam turbine (2) is connected to the steam inlet (301) of condenser (3), and/or, condensate water outlet (302) of condenser (3) is connected with the entrance (401) of condensate pump (4), condensate pump outlet (402) is connected with condensate pipe (403), and condensate pipe (403) is connected to steelshop or mill or be connected to the water inlet (80501) of economizer (805) of saturated vapor heating boiler (8).
The method of 14. 1 kinds of steel rolling steel-making saturated vapor comprehensive utilization generatings or a kind of method using the device according to any one of claim 1-13 to generate electricity, the method comprises: the saturated vapor in the saturated vapor in heater for rolling steel drum (5) and storage heater (7) is transported to via heater for rolling steel drum saturated vapor pipeline (L2) and storage heater saturated vapor pipeline (L3) the saturated vapor low temperature superheater (806) being arranged in the overheated boiler of saturated vapor (8) respectively, and to carry out first time overheated, it is overheated and obtain high parameter saturated vapor or high temperature saturated vapor that then experience first time overheated saturated vapor carries out second time further by saturated vapor high temperature superheater (807), then high parameter saturated vapor or high temperature saturated vapor are delivered to the air intake (201) of steam turbine (2) via the first jet chimney (L1), to allow steam turbine (2) drive generator (1) to generate electricity.
15. methods according to claim 14, the method comprises further: external feedwater (10) is successively by saturated vapor heating boiler economizer (805), saturated vapor heating boiler evaporimeter (804) is heated into saturated vapor, then, the saturated vapor formed is transferred via the saturated vapor pipeline (L4) of the overheated boiler of saturated vapor (8) and carries out mixing with the saturated vapor of the saturated vapor of heater for rolling steel drum (5) saturated vapor pipeline (L2) and storage heater (7) saturated vapor pipeline (L3) and enter in saturated vapor heating boiler saturated vapor low temperature superheater (806) that to carry out first time overheated, it is overheated and obtain high parameter saturated vapor or high temperature saturated vapor (abbreviation superheated steam) that then experience first time overheated saturated vapor carries out second time further by saturated vapor high temperature superheater (807), then high parameter saturated vapor or high temperature saturated vapor are delivered to the air intake (201) of steam turbine (2) via the first jet chimney (L1), to allow steam turbine (2) drive generator (1) to generate electricity.
16. methods according to claim 15, it is characterized in that: external feedwater (10) enters in saturated vapor heating boiler drum (803) by first entrance (80301) of saturated vapor heating boiler drum (803) after saturated vapor heating boiler economizer (805) heating, the hot water flowed out from the first outlet (80302) of saturated vapor heating boiler drum (803) enters saturated vapor heating boiler evaporimeter (804), the steam water interface that saturated vapor heating boiler evaporimeter (804) produces enters saturated vapor heating boiler drum (803) from second entrance (80303) of saturated vapor heating boiler drum (803), saturated vapor in saturated vapor heating boiler drum (803) is discharged from second of saturated vapor heating boiler drum (803) the outlet (80304) and is carried out being mixed and fed into saturated vapor heating boiler saturated vapor low temperature superheater (806) that to carry out first time overheated via saturated vapor heating boiler saturated vapor pipeline (L4) conveying thus with the saturated vapor carried by heater for rolling steel drum saturated vapor pipeline (L2) and storage heater saturated vapor pipeline (L3) respectively, optionally again through supersaturated vapor heating boiler attemperator (802), then, enter in saturated vapor heating boiler saturated vapor high temperature heater (HTH) (807) that to carry out second time overheated, the superheated steam obtained is delivered to the air intake (201) of steam turbine (2) via the first jet chimney (L1), steam turbine (2) is allowed to drive generator (1) to generate electricity.
17. according to the method in claim 14-16 described in any one, it is characterized in that: coal gas (9) enters combustion chamber (80103) combustion of saturated vapor heating boiler burner (801) through the burner (80101) of saturated vapor heating boiler (8) burner (801) and produces high-temperature flue gas, flue gas is upwards successively through supersaturated vapor heating boiler saturated vapor low temperature superheater (806), saturated vapor heating boiler saturated vapor high temperature superheater (807), again successively through supersaturated vapor heating boiler evaporimeter (804), saturated vapor heating boiler economizer (805), extract out finally by air-introduced machine (12).
18., according to the method in claim 14-17 described in any one, is characterized in that: steelmaking converter drum (6) produces the saturated vapor of interruption and is transported in storage heater (7) via steelmaking converter drum saturated vapor pipeline (L5).
19. according to the method in claim 14-18 described in any one, and the steam of wherein discharging from the steam drain (203) of steam turbine (2) enters condenser (3) and forms condensate water; Preferably, the condensate water formed is transported to steel-making and mill or is transported to the water inlet (80501) of economizer (805) of saturated vapor heating boiler (8), as a part for external feedwater (10) or external feedwater (10).
20. methods according to any one of claim 17-19, is characterized in that: the temperature that burning produces high-temperature flue gas is 600 ~ 1500 DEG C, preferred 700-1400 DEG C, more preferably 800-1200 DEG C, and/or
The temperature of the flue gas that air-introduced machine (12) is discharged is 100-200 DEG C, preferred 120-180 DEG C, more preferably 140-160 DEG C.
21. methods according to any one of claim 14-20, it is characterized in that: in heater for rolling steel drum saturated vapor pipeline (L2), storage heater saturated vapor pipeline (L3) and saturated vapor heating boiler saturated vapor pipeline (L4), the temperature of three strands of saturated steam flowings is 150-250 DEG C independently of one another, preferred 160-240 DEG C, and/or
The temperature of saturated vapor heating boiler saturated vapor low temperature superheater outlet (80602) place steam is 250-350 DEG C, preferred 260-340 DEG C, and/or
The temperature of saturated vapor heating boiler saturated vapor high temperature superheater outlet (80702) place superheated steam is 360-450 DEG C, and preferred 370-440 DEG C, more selects 380-420 DEG C.
22. methods according to any one of claim 14-21, it is characterized in that: the pressure of the superheated steam that the saturated vapor high temperature superheater (807) of the overheated boiler of saturated vapor (8) produces is >=0.60MPa, preferably >=0.80MPa, more preferably >=1.0MPa, such as pressure is 0.6MPa-2.5MPa, preferred 0.8MPa-2.0MPa, more preferably 1.0MPa-1.8MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107396A (en) * | 2018-12-07 | 2019-08-09 | 吴金意 | A kind of twin-screw rotary engine |
| CN110397903A (en) * | 2019-07-31 | 2019-11-01 | 沛县祥龙矿山机械配件有限公司 | A kind of steel rolling steel-making saturated vapor comprehensive utilization power generator |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252890A (en) * | 1988-03-30 | 1989-10-09 | Nippon Steel Corp | Recovery of exhaust heat of metallurical furnace |
| JPH03236593A (en) * | 1990-02-13 | 1991-10-22 | Nippon Steel Corp | Device and method for recovering waste heat in metallurgical furnace |
| 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 |
| CN201666565U (en) * | 2009-12-22 | 2010-12-08 | 中国船舶重工集团公司第七一一研究所 | Complementary combustion type waste heat boiler of catalytic cracking unit |
| CN101949535A (en) * | 2010-09-28 | 2011-01-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN103133067A (en) * | 2013-03-15 | 2013-06-05 | 南京凯盛开能环保能源有限公司 | Steel-mill residual blast-furnace gas and residual saturated steam comprehensive utilization power generation system |
| CN203130173U (en) * | 2013-03-26 | 2013-08-14 | 河北能源工程设计有限公司 | Novel power generation system through combined utilization of converter and steel rolling heating furnace steam |
-
2015
- 2015-05-13 CN CN201510243350.5A patent/CN104807339A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252890A (en) * | 1988-03-30 | 1989-10-09 | Nippon Steel Corp | Recovery of exhaust heat of metallurical furnace |
| JPH03236593A (en) * | 1990-02-13 | 1991-10-22 | Nippon Steel Corp | Device and method for recovering waste heat in metallurgical furnace |
| 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 |
| CN201666565U (en) * | 2009-12-22 | 2010-12-08 | 中国船舶重工集团公司第七一一研究所 | Complementary combustion type waste heat boiler of catalytic cracking unit |
| CN101949535A (en) * | 2010-09-28 | 2011-01-19 | 哈尔滨工业大学 | Low-ratio biomass circulating fluidized bed boiler and combustion method thereof |
| CN103133067A (en) * | 2013-03-15 | 2013-06-05 | 南京凯盛开能环保能源有限公司 | Steel-mill residual blast-furnace gas and residual saturated steam comprehensive utilization power generation system |
| CN203130173U (en) * | 2013-03-26 | 2013-08-14 | 河北能源工程设计有限公司 | Novel power generation system through combined utilization of converter and steel rolling heating furnace steam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107396A (en) * | 2018-12-07 | 2019-08-09 | 吴金意 | A kind of twin-screw rotary engine |
| CN110397903A (en) * | 2019-07-31 | 2019-11-01 | 沛县祥龙矿山机械配件有限公司 | A kind of steel rolling steel-making saturated vapor comprehensive utilization power generator |
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Application publication date: 20150729 |