CN102109279A - Process method for high-temperature afterheat comprehensive utilization of industrial furnace - Google Patents
Process method for high-temperature afterheat comprehensive utilization of industrial furnace Download PDFInfo
- Publication number
- CN102109279A CN102109279A CN2009102488108A CN200910248810A CN102109279A CN 102109279 A CN102109279 A CN 102109279A CN 2009102488108 A CN2009102488108 A CN 2009102488108A CN 200910248810 A CN200910248810 A CN 200910248810A CN 102109279 A CN102109279 A CN 102109279A
- Authority
- CN
- China
- Prior art keywords
- steam
- industrial furnace
- blower fan
- energy
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Air Supply (AREA)
Abstract
The invention provides a process method for high-temperature afterheat comprehensive utilization of an industrial furnace. The industrial furnace mainly comprises a heating furnace, an air preheater, a gas preheater, an afterheat boiler, a fan and a chimney; a steam superheater is arranged in a flue in front of the air preheater; saturated steam generated by the afterheat boiler or saturated steam generated by vaporizing and cooling a water pipe at the bottom of the industrial furnace are guided into the steam superheater through a pipeline, so as to generate and convey superheated steam into an inlet of a steam turbine; and heat energy is converted into kinetic energy in the steam turbine to drive a driving shaft to rotate and output mechanical work, so that an electromotor is replaced to drive the fan. Steam after work application flows into the condenser to be changed into saturated hot water for a circulation system of the afterheat boiler and domestic water, so that steam energy is utilized in a stepped manner. With the adoption of the process method, the high-temperature afterheat of the industrial furnace is utilized more reasonably and comprehensively, so that the comprehensive utilization ratio of the heat energy is improved, and a large number of electric energy of the system is saved. The process method has high safety and reliability, quite low operating cost and remarkable energy-saving efficiency and economic efficiency.
Description
Technical field
The present invention relates to the industrial furnace energy-saving field, the process that particularly a kind of industrial furnace high-temperature residual heat integrative utilizes.
Background technology
At present, the industrial furnace high-temperature afterheat utilization mainly by sky, gas preheating device are set, is come fuel such as preheating sky, coal gas in flue; Or produce steam by increasing waste heat boiler, and be used for producing and life, thereby reduce the heat loss that flue gas is taken away, improve fuel availability, reach the purpose of energy-saving and environmental protection.But because the restriction that the fuel of preheating and equipment etc. require, also there is certain deficiency in this UTILIZATION OF VESIDUAL HEAT IN, still very high through the flue-gas temperature after the above-mentioned UTILIZATION OF VESIDUAL HEAT IN, the heat loss of taking away is also a lot, and this UTILIZATION OF VESIDUAL HEAT IN can not produce more senior energy, and therefore its limitation is arranged.
Summary of the invention
The process that the object of the present invention is to provide a kind of industrial furnace high-temperature residual heat integrative to utilize drives blower fan by high-temperature flue gas and/or the vaporization cooling steam that utilizes industrial furnace, has improved the comprehensive utilization ratio of heat energy.
The object of the present invention is achieved like this, the process that a kind of industrial furnace high-temperature residual heat integrative utilizes, in flue except that industrial furnace system existing UTILIZATION OF VESIDUAL HEAT IN equipment sky, gas preheating device and waste heat boiler are set, steam superheater is set before air preheater, the saturated vapor of waste heat boiler production or the saturated vapor of industrial furnace floor tube vaporization cooling generation are guided in the steam superheater with pipeline, generate the superheated steam that temperature is higher than saturated-steam temperature under the relevant pressure, this steam has good acting ability.It is delivered to the steam turbine inlet, and in the nozzle of steam turbine, steam expansion is quickened, and thermal power transfer becomes kinetic energy, is flowed out by nozzle, produces and makes the impeller rotating moment, drives the driving shaft rotation, and the output mechanical power drives blower fan thereby substitute motor.Under the operating mode of changing load, can realize convenience, smoothly adjustable-speed by the steam regulation amount, and adjustable range is big, effective.
Technical scheme of the present invention for the acting after vapor stream to condenser, be cooled to saturated hot-water with normal-temperature water, except that the part as the domestic water, all the other are back to waste heat boiler by water pump, form stable energy circulation system, make steam energy obtain cascade utilization.
Technical scheme of the present invention is a motor belt transmission blower fan main shaft, as " start the machine air blower "; The Steam Turbine Driven speed increaser connects blower fan with clutch, as " production run blower fan ", starts earlier " start the machine air blower ", treats that industrial furnace is working properly, produce stable vapour system after, switch to " production run blower fan " again, thereby saved a large amount of electric energy.This technology maturation, and easy switching, the security reliability of operation is guaranteed.Whole bootstrap system is the servo-actuated running with the work of industrial furnace.
The invention has the beneficial effects as follows and utilize industrial furnace high-temperature waste heat flue gas that the heating waste heat boiler is produced saturated vapor; Or the saturated vapor that utilizes floor tube vaporization cooling to produce, through behind the steam superheater, become superheated steam, in steam turbine, realize the transformation of heat energy to kinetic energy, the output mechanical power drives blower fan, thereby substitutes motor.The industrial furnace high-temperature waste heat has obtained more rationally, has utilized more fully, improved the comprehensive utilization ratio of heat energy, produced more senior energy---electric energy, a large amount of electric energy of system have been saved, the security reliability height, steam energy is able to cascade utilization, has further reduced the exhaust gas temperature of chimney, has tangible energy-saving benefit and economic benefit.Walking beam furnace with production capacity 280t/h is an example, and annual light is saved power consumption just can reach 3,200,000 degree.Though the present invention needs to increase some cost investments, operating cost is well below cost of investment, and the cost investment of increase is very fast promptly recoverable.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail:
As shown in Figure 1, the equipment that the present invention relates to mainly comprises equipment two parts that reheat furnace system existing device and the present invention increase newly.Wherein the reheat furnace system existing device mainly contains heating furnace 1, air preheater 2, gas preheating device 3, waste heat boiler 4, blower fan 5, chimney 6, and the equipment that the present invention increases newly mainly contains steam superheater 7, steam-water separator 8, steam turbine 9, condenser 10, water pump 11.
At first, as " driving blower fan ", combustion air and coal gas by being arranged on air preheater 2 and the gas preheating device 3 in the flue, are realized heat convection with the high-temperature flue gas that heating furnace 1 produces, and fuel are preheating to temperature required with Motor Drive blower fan 5; The high-temperature flue gas of the intact fuel of preheating passes through waste heat boiler 4 again, produces saturated vapor; Saturated vapor also can be drawn with pipeline from industrial furnace floor tube vaporization cooling drum.Saturated vapor is through being arranged on the preceding steam superheater 7 of air preheater, generate superheated steam, pass through steam-water separator 8 again, superheated steam enters the inlet of steam turbine 9, thermal power transfer is become kinetic energy, drive the rotation of steam turbine driving shaft, driving shaft drives speed increaser and is connected with blower fan 5 with clutch, " production run blower fan " starting, motor shuts down.
Vapor stream after the acting is cooled to saturated hot-water with the normal temperature water-cooled with it to condenser 10, and as the domestic water, all the other are back to waste heat boiler 4 by water pump 11, form stable energy circulation system except that partly, realizes the cascade utilization of steam energy.Flue gas after the said method comprehensive utilization, temperature is further reduced, and enters in the atmosphere through chimney 6.
Claims (3)
1. the process utilized of an industrial furnace high-temperature residual heat integrative, mainly comprise heating furnace (1), air preheater (2), gas preheating device (3), waste heat boiler (4), blower fan (5), chimney (6), it is characterized in that, in the preceding flue of air preheater (2), steam superheater (7) is set, the saturated vapor of waste heat boiler (4) production or the saturated vapor of industrial furnace floor tube vaporization cooling generation are guided in the steam superheater (7) with pipeline, generate superheated steam, send to steam turbine (9) inlet, thermal power transfer becomes kinetic energy in steam turbine (9), the rotation of drive driving shaft, the output mechanical power drives blower fan (5) thereby substitute motor.
2. the process that a kind of industrial furnace high-temperature residual heat integrative according to claim 1 utilizes, the vapor stream after it is characterized in that doing work is cooled to saturated hot-water to condenser with normal-temperature water.
3. the process that a kind of industrial furnace high-temperature residual heat integrative according to claim 1 utilizes is characterized in that blower fan main shaft by the motor belt transmission, as " start the machine air blower "; The Steam Turbine Driven speed increaser connects blower fan by clutch, as " production run blower fan "; Start earlier " start the machine air blower ", treat that industrial furnace is working properly, produces stable vapour system after, clutch closes, motor stall, " production run blower fan " startup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102488108A CN102109279A (en) | 2009-12-23 | 2009-12-23 | Process method for high-temperature afterheat comprehensive utilization of industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102488108A CN102109279A (en) | 2009-12-23 | 2009-12-23 | Process method for high-temperature afterheat comprehensive utilization of industrial furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102109279A true CN102109279A (en) | 2011-06-29 |
Family
ID=44173501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102488108A Pending CN102109279A (en) | 2009-12-23 | 2009-12-23 | Process method for high-temperature afterheat comprehensive utilization of industrial furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102109279A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055775A (en) * | 2012-12-25 | 2013-04-24 | 烟台恒源生物股份有限公司 | Combined heat-work production comprehensive utilization method for chemical energy produced in production of fumaric acid |
| CN103471408A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Heating furnace high-temperature flue gas waste heat utilization system and method |
| CN103673642A (en) * | 2013-10-21 | 2014-03-26 | 江苏卓易环保科技有限公司 | Device and method for dragging dust removal fan through industrial boiler steam |
| CN104501608A (en) * | 2014-11-17 | 2015-04-08 | 北京中冶设备研究设计总院有限公司 | Equipment and method for superheating saturated steam of heating furnace by waste heat of large sintering flue |
| CN106051800A (en) * | 2016-06-14 | 2016-10-26 | 镇江市电站辅机厂有限公司 | Energy-saving and environment-friendly two-circuit parallel type smoke waste heat recycling device and method |
| CN106052405A (en) * | 2016-05-26 | 2016-10-26 | 中冶东方工程技术有限公司 | Heating furnace waste heat comprehensive utilization system and method |
| CN107462078A (en) * | 2017-06-27 | 2017-12-12 | 林州凤宝管业有限公司 | A kind of TRT that can make full use of boiler preheating |
| CN109281719A (en) * | 2017-07-20 | 2019-01-29 | 斗山重工业建设有限公司 | Hybrid power system |
| CN109297312A (en) * | 2018-09-30 | 2019-02-01 | 四川德胜集团钒钛有限公司 | A kind of separated phase transition smoke heat exchanging system |
| CN110220214A (en) * | 2019-04-23 | 2019-09-10 | 苏州金洋环保科技有限公司 | A kind of warming stove |
| CN110219709A (en) * | 2019-06-01 | 2019-09-10 | 陈明晖 | A kind of engine |
| CN111238248A (en) * | 2020-03-20 | 2020-06-05 | 北京中冶设备研究设计总院有限公司 | Converter steam waste heat utilization system additionally provided with self-superheater |
| CN112460598A (en) * | 2020-12-02 | 2021-03-09 | 上海能辉科技股份有限公司 | Multi-section coupling system and process for garbage pyrolysis furnace and coal-fired boiler |
| CN114719191A (en) * | 2022-03-23 | 2022-07-08 | 华北电力科学研究院有限责任公司 | Pipeline pre-warming method, system and controller |
-
2009
- 2009-12-23 CN CN2009102488108A patent/CN102109279A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055775A (en) * | 2012-12-25 | 2013-04-24 | 烟台恒源生物股份有限公司 | Combined heat-work production comprehensive utilization method for chemical energy produced in production of fumaric acid |
| CN103471408A (en) * | 2013-09-06 | 2013-12-25 | 鞍钢股份有限公司 | Heating furnace high-temperature flue gas waste heat utilization system and method |
| CN103471408B (en) * | 2013-09-06 | 2015-08-05 | 鞍钢股份有限公司 | Heating furnace high-temperature flue gas waste heat utilization system and method |
| CN103673642A (en) * | 2013-10-21 | 2014-03-26 | 江苏卓易环保科技有限公司 | Device and method for dragging dust removal fan through industrial boiler steam |
| CN104501608A (en) * | 2014-11-17 | 2015-04-08 | 北京中冶设备研究设计总院有限公司 | Equipment and method for superheating saturated steam of heating furnace by waste heat of large sintering flue |
| CN104501608B (en) * | 2014-11-17 | 2016-05-25 | 北京中冶设备研究设计总院有限公司 | The device and method of the overheated heating furnace saturated vapor of a kind of sintering large flue waste heat |
| CN106052405A (en) * | 2016-05-26 | 2016-10-26 | 中冶东方工程技术有限公司 | Heating furnace waste heat comprehensive utilization system and method |
| CN106051800A (en) * | 2016-06-14 | 2016-10-26 | 镇江市电站辅机厂有限公司 | Energy-saving and environment-friendly two-circuit parallel type smoke waste heat recycling device and method |
| CN107462078A (en) * | 2017-06-27 | 2017-12-12 | 林州凤宝管业有限公司 | A kind of TRT that can make full use of boiler preheating |
| CN109281719A (en) * | 2017-07-20 | 2019-01-29 | 斗山重工业建设有限公司 | Hybrid power system |
| CN109281719B (en) * | 2017-07-20 | 2021-05-14 | 斗山重工业建设有限公司 | Hybrid power generation system |
| CN109297312A (en) * | 2018-09-30 | 2019-02-01 | 四川德胜集团钒钛有限公司 | A kind of separated phase transition smoke heat exchanging system |
| CN110220214A (en) * | 2019-04-23 | 2019-09-10 | 苏州金洋环保科技有限公司 | A kind of warming stove |
| CN110219709A (en) * | 2019-06-01 | 2019-09-10 | 陈明晖 | A kind of engine |
| CN111238248A (en) * | 2020-03-20 | 2020-06-05 | 北京中冶设备研究设计总院有限公司 | Converter steam waste heat utilization system additionally provided with self-superheater |
| CN112460598A (en) * | 2020-12-02 | 2021-03-09 | 上海能辉科技股份有限公司 | Multi-section coupling system and process for garbage pyrolysis furnace and coal-fired boiler |
| CN114719191A (en) * | 2022-03-23 | 2022-07-08 | 华北电力科学研究院有限责任公司 | Pipeline pre-warming method, system and controller |
| CN114719191B (en) * | 2022-03-23 | 2024-01-30 | 华北电力科学研究院有限责任公司 | Pipeline preheating method, system and controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102109279A (en) | Process method for high-temperature afterheat comprehensive utilization of industrial furnace | |
| CN104180675B (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN101788233B (en) | Heating-furnace cogeneration system and method thereof | |
| CN105737123B (en) | Blast furnace gas distributed energy resource system | |
| CN101178017A (en) | Method for recycling and regenerating steel plant residual heat boiler saturated steam | |
| JP2013096244A (en) | Steam turbine power generation system | |
| CN102080582A (en) | Coal-fired power generation and waste heat power generation coupling system for private station of cement kiln | |
| CN201218660Y (en) | Power generation apparatus by waste heat of sintering production | |
| CN1671993A (en) | Waste heat steam generator | |
| CN204593335U (en) | Power economized boiler | |
| CN201103894Y (en) | Saturated steam heating stove | |
| CN201071741Y (en) | Electric furnace flue gas waste heat power generation system | |
| CN103075804A (en) | Electric-free gas heat-pump water heater | |
| CN106225491B (en) | Sinter cooler smoke waste heat utilization system and sinter cooler | |
| CN107131018A (en) | Waste heat boiler excess steam driving load equipment and the system and implementation method of generating | |
| CN104213951B (en) | Waste heat of coke oven is multigroup to utilize system | |
| CZ26344U1 (en) | Electric power generating plant from solid fuels and employing gas turbine engine | |
| CN105387729A (en) | Material cooling waste heat power generation system | |
| CN111288810A (en) | Device and method for efficiently generating power by using waste heat steam of converter | |
| CN108731004B (en) | Circulating cooling device of water-cooled grate and waste incineration power generation device | |
| CN109099498A (en) | It is a kind of to couple the technique and method for generating thermoelectricity decoupling by coal dust firing flue gas shunting | |
| CN205480908U (en) | Blast furnace gas distributed energy system | |
| CN212205692U (en) | Device for efficiently generating power by using waste heat steam of converter | |
| CN204064000U (en) | Heating furnace residual heat integrative utilizes electricity generation system | |
| CN201819572U (en) | Post-positioned power generation system of SP double-pressure vertical type boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |