CN103836987A - Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with liquid storage tank - Google Patents
Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with liquid storage tank Download PDFInfo
- Publication number
- CN103836987A CN103836987A CN201210516020.5A CN201210516020A CN103836987A CN 103836987 A CN103836987 A CN 103836987A CN 201210516020 A CN201210516020 A CN 201210516020A CN 103836987 A CN103836987 A CN 103836987A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- heat
- temperature
- steam
- gas
- 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
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 239000003546 flue gas Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 title claims abstract description 6
- 239000002918 waste heat Substances 0.000 title abstract description 24
- 238000010248 power generation Methods 0.000 title abstract description 4
- 238000004134 energy conservation Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 230000009183 running Effects 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 25
- 238000009835 boiling Methods 0.000 claims description 14
- 238000005338 heat storage Methods 0.000 claims description 13
- 238000002485 combustion reaction Methods 0.000 claims description 10
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 10
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 9
- 238000013459 approach Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 239000012716 precipitator Substances 0.000 claims description 7
- 239000011555 saturated liquid Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229940059936 lithium bromide Drugs 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- AHADSRNLHOHMQK-UHFFFAOYSA-N methylidenecopper Chemical compound [Cu].[C] AHADSRNLHOHMQK-UHFFFAOYSA-N 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Provided is a flue gas waste heat power-generation energy-conservation and dust-removal method for an electric furnace with a liquid storage tank. The method is characterized in that flue gas of the electric furnace is exhausted from the inside of the electric furnace, the flue gas is mixed into cold air through a water-cooled flue gas to enter a settling chamber, the flue gas passing the settling chamber enters a high-temperature dust remover which is a filter element dust remover made of high temperature resistance carbon and copper composite materials, and then enters a thermal storage temperature evening device, after thermal storage and temperature evening are carried out on the flue gas, the flue gas enters a collection chamber and emits heat, the flue gas is pressed into an exhaust funnel through a main fan and exhausted to atmosphere, meanwhile, circulating water flows into a heat exchanger and absorbs the heat of the flue gas, a steam-water mixture is formed and enters an evaporator, heat is given off, organic working media absorb the heat in the evaporator through a working medium pump to become steam and enter a steam drum, and the steam does work in a steam turbine in an expansion mode and drives a generator to generate electricity; R227ea is adopted to serve as the circulating organic working media. The working medium liquid storage tank is adopted, so that it is guaranteed that the working medium circulating pump can continuously pressurize, heat energy is converted into high-grade electric energy through organic Rankine cycle waste heat power generation, investment of the device is little, and running energy consumption is low.
Description
Technical field
The present invention relates to a kind of electric furnace flue gas cogeneration energy-saving dedusting method with fluid reservoir, specifically the heat energy in recovered flue gas is converted into high-grade electric energy to greatest extent, can improve again dust collection capacity, belongs to electric stove dust technical field.
Background technology
Steel and iron industry consumes mass energy every year, and the high-temperature flue gas producing in smelting process and equipment cooling have been taken away large energy.Because electric furnace flue gas temperature is very high, the temperature that enters pipeline after trapping is generally 900 DEG C of left and right, and dust concentration reaches 35g/Nm
3, the ash that is less than 5um accounts for the more than 80% of dust total amount, and Dust Capacity is large, and sticky and thin.And flue-gas temperature big ups and downs, dustiness is large, and light water tubulation waste heat boiler is difficult to apply to the waste heat recovery of ferro-alloy furnace flue gas.At present, heat exchange of heat pipe has successfully applied in the flue gas waste heat recovery of electric furnace, but due to the inherent shortcoming of heat pipe (cost is high, not freeze proof, non-refractory, service life short), make heat pipe residual-heat recovery also face a lot of problems at steel industry universal.
Owing to containing a large amount of dust in flue gas, on heat exchange element, there is dust stratification, clogging in sticky and thin dust, not only affect heat exchange efficiency, cause waste heat boiler steam production deficiency, more seriously due to the stifled ash of waste heat boiler, system fluctuation of service, causes to smelt and produces and cannot normally carry out, the maintenance of being forced to stop production.
Meanwhile, because electric furnace flue gas temperature fluctuation is violent, wave amplitude is large, and waste-heat recovery device just must design enough greatly, guarantees that high-temperature flue gas also can effective cooling.But far below the evaporation capacity of waste-heat recovery device, there is the situation of low load with strong power in actual steam output.The economic worth that this has just reduced waste-heat recovery device relatively, has increased the investment of waste-heat recovery device.
Summary of the invention
For the problems referred to above, the invention provides the electric furnace flue gas cogeneration energy-saving dedusting method with fluid reservoir, can not only effectively reduce electric furnace flue gas temperature fluctuation amplitude by the method, cooling high temperature flue gas efficiently, heat energy in recovered flue gas is converted into high-grade electric energy to greatest extent, can reduce the exhaust temperature of flue gas simultaneously, improves dust collection capacity, obtain good dust removing effects, the dust concentration 12mg/Nm of discharge
3, and do not affect the stable and continuous of electric furnace production.
The technical solution adopted in the present invention is as follows:
With the electric furnace flue gas cogeneration energy-saving dedusting method of fluid reservoir, it is characterized in that: electric furnace flue gas of the present invention is by discharging in stove, sneak into cold wind through water-cooled flue, after burning CO gas, enter combustion settling chamber, the effect of combustion settling chamber is: reduce flue gas flow rate, make the big dust particle sedimentation of carrying in flue gas, and suitably sneak into cold wind, finally burn CO gas, 650 DEG C of the flue-gas temperatures of adjusting control expansion chamber, flue gas through combustion settling chamber enters hot precipitator, described hot precipitator is high temperature resistant composite carbon-copper material filter-element dust collector, dust concentration 12mg/Nm after dedusting
3, high-temperature flue gas through dedusting enters thermal storage temperature equalizer, described thermal storage temperature equalizer comprises gas approach, composite material of silicon carbide heat storage, shock-wave ash-clearing device, exhanst gas outlet and ash bucket, described composite material of silicon carbide heat storage is arranged between gas approach and exhanst gas outlet, described shock-wave ash-clearing device step-by-step arrangement is between heat storage, by composite material of silicon carbide heat storage in thermal storage temperature equalizer to the heat-accumulating and temperature-equalizing effect of high-temperature flue gas after, flue gas enters in collection chamber, high-temperature flue gas is emitted heat, complete heat exchange, temperature is down to 80 DEG C of left and right, be pressed into aiutage by main air blower and enter atmosphere, simultaneously, recirculated water drives by heat exchanger feed pump, enter the heat that absorbs flue gas in the primary surface heat exchanger being installed in collection chamber, form steam water interface, steam water interface is tried hard to recommend under moving and is entered in shell-and-tube evaporator in Natural Circulation, emit heat, become water at low temperature, water at low temperature flows into circulating water pool, start new round circulation, low boiling working fluid drives by working medium pump, in shell-and-tube evaporator, absorb the heat of steam water interface, become saturated vapor, enter drum, drum can filtering source of the gas in supersaturation moisture content and impurity, guarantee steam turbine even running, working substance steam is by after pressure regulator valve, in low boiling working fluid steam turbine, expand and do work, and drive threephase generator to generate electricity, the electric energy that system is sent is three-phase alternating current, rated voltage is 380V, can after pressure regulation, be incorporated to electrical network in factory, or directly give consumer use, the working substance steam of discharging from low boiling working fluid steam turbine is saturated liquid by copper fin-plate type condenser condenses, enter fluid reservoir, fluid reservoir can be guaranteed working medium circulating pump continuous pressure, working medium circulating pump will be sent in shell-and-tube evaporator after worker quality liquid pressurization, start new round circulation, from copper fin-plate type condenser recirculated water out, cooling by lithium-bromide absorption-type refrigerating machine, the temperature of cooling water is down to 10～15 DEG C, meet working substance steam and be condensed into the requirement of saturated liquid to cooling water, send in copper fin-plate type condenser through water pump, start new round circulation.
It is further characterized in that: it is circulation organic working medium that the present invention adopts R227ea.
The invention has the beneficial effects as follows: because electric furnace flue gas temperature fluctuation is violent, flue-gas temperature peak value is high, after flue gas is processed by thermal storage temperature equalizer of the present invention, flue-gas temperature fluctuating range can greatly reduce, and has also reduced the peak value of flue-gas temperature simultaneously.Flue gas through thermal storage temperature equalizer enters primary surface heat exchanger, due to flue-gas temperature peak reduction, can make device for generating power by waste heat investment reduce; Flue-gas temperature fluctuating range reduces, and is conducive to improve the stability of device for generating power by waste heat, increases the service life; Meanwhile, because primary surface heat exchanger of the present invention is placed on after deduster, thermal source dust content is low, when equipment manufactures and designs, can not consider, therefore can be by very little the design of heat exchange core cell spacing of fin; And need not unload ash, deashing, defeated grey facility; UTILIZATION OF VESIDUAL HEAT IN facility volume reduces, and maintenance reduces simultaneously, has also extended the service life of heat exchanger, and dust emission concentration is lower.
Compared with the prior art the present invention has the following advantages:
1. adopt low boiling working fluid organic Rankine circulation cogeneration to reclaim the waste heat of electric furnace flue gas, the heat energy in electric furnace flue gas is converted into high-grade electric energy;
2. cooling by lithium-bromide absorption-type refrigerating machine, the temperature of cooling water is down to 10～15 DEG C, meets working substance steam and is condensed into the requirement of saturated liquid to cooling water;
3. thermal storage temperature equalizer can be to flue-gas temperature peak load shifting, reduce flue gas maximum temperature, reduce the fluctuating range of flue-gas temperature, alleviate the rapid drawdown that rises sharply of flue-gas temperature, solve the problem of expanding with heat and contract with cold;
4, drum can filtering source of the gas in supersaturation moisture content and impurity, guarantee steam turbine even running;
5, working medium fluid reservoir, can guarantee working medium circulating pump continuous pressure;
6, not dust stratification of primary surface heat exchanger, does not stop up, the service life of extension device;
7, improve device for generating power by waste heat efficiency;
8, reduce device for generating power by waste heat investment.
Brief description of the drawings
Fig. 1 realizes the process chart of the present invention with the electric furnace flue gas cogeneration energy-saving dedusting method of fluid reservoir.
In figure: 1. electric furnace, 2. water-cooled flue, 3. combustion settling chamber, 4. hot precipitator, 5. thermal storage temperature equalizer, 6. gas approach, 7. composite material of silicon carbide heat storage, 8. ash bucket, 9. shock-wave ash-clearing device, 10. exhanst gas outlet, 11. collection chambers, 12. primary surface heat exchangers, 13. heat exchanger feed pumps, 14. circulating water pools, 15. shell-and-tube evaporators, 16. working medium circulating pumps, 17. drums, 18. fluid reservoirs, 19. low boiling working fluid steam turbines, 20. threephase generators, 21. water circulating pumps, 22. bronze medal fin-plate type condensers, 23. lithium-bromide absorption-type refrigerating machines, 24. main air blowers, 25. aiutages.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention is as follows with the electric furnace flue gas cogeneration energy-saving dedusting method step of fluid reservoir:
90t/h electric furnace 1 flue gas flow 20 × 10
4nm
3/ h, 900 DEG C of temperature, dust content 35g/Nm
3by discharging in stove, sneak into cold wind through water-cooled flue 2, after burning CO gas, enter combustion settling chamber 3, the effect of combustion settling chamber 3 is: reduce flue gas flow rate, make the big dust particle sedimentation of carrying in flue gas, and suitably sneak into cold wind, finally burn CO gas, 650 DEG C of the flue-gas temperatures of adjusting control expansion chamber, enter hot precipitator 4 through the flue gas of combustion settling chamber, described hot precipitator 4 is high temperature resistant composite carbon-copper material filter-element dust collector, dust concentration 12mg/Nm after dedusting
3, enter thermal storage temperature equalizer 5 through the high-temperature flue gas of dedusting, described thermal storage temperature equalizer 5 comprises gas approach 6, composite material of silicon carbide heat storage 7, shock-wave ash-clearing device 9, exhanst gas outlet 10 and ash bucket 8, described composite material of silicon carbide heat storage 7 is arranged between gas approach 6 and exhanst gas outlet 10, described shock-wave ash-clearing device 9 step-by-step arrangements are between heat storage 7, by composite material of silicon carbide heat storage 7 in thermal storage temperature equalizer 5 to the heat-accumulating and temperature-equalizing effect of high-temperature flue gas after, flue gas enters in collection chamber 11, high-temperature flue gas is emitted heat, complete heat exchange, temperature is down to 80 DEG C, be pressed into aiutage 25 by main air blower 24 and enter atmosphere, simultaneously, recirculated water drives by heat exchanger feed pump 13, enter the heat that absorbs flue gas in the primary surface heat exchanger 12 being installed in collection chamber 11, form steam water interface, steam water interface is tried hard to recommend under moving and is entered in shell-and-tube evaporator 15 in Natural Circulation, emit heat, become water at low temperature, water at low temperature flows into circulating water pool 14, start new round circulation, low boiling working fluid drives by working medium pump 16, in shell-and-tube evaporator 15, absorb the heat of steam water interface, become saturated vapor, enter drum 17, drum 17 can filtering source of the gas in supersaturation moisture content and impurity, guarantee steam turbine 19 even runnings, working substance steam is by after pressure regulator valve, in the interior expansion acting of low boiling working fluid steam turbine 19, and drive threephase generator 20 to generate electricity, the electric energy that system is sent is three-phase alternating current, rated voltage is 380V, can after pressure regulation, be incorporated to electrical network in factory, or directly give consumer use, the working substance steam of discharging from low boiling working fluid steam turbine 19 is condensed into saturated liquid by copper fin-plate type condenser 22, enter fluid reservoir 18, fluid reservoir 18 can be guaranteed working medium circulating pump 16 continuous pressures, working medium circulating pump 16 will be sent in shell-and-tube evaporator 15 after worker quality liquid pressurization, start new round circulation, the recirculated water of coming from cooling tower 23 drives by water circulating pump 21, enter in copper fin-plate type condenser 22 and absorb heat, try hard to recommend under moving and enter in cooling tower 23 in Natural Circulation, emit heat, become water at low temperature, start new round circulation.
Described low boiling working fluid is R227ea, the power pressure that enters low boiling working fluid steam turbine is 2.85MPa, and when the power pressure expanding after acting is 0.35MPa, system electromotive power output is 2500KW, Rankine cycle efficiency is 22.5%, and the flue-gas temperature that system is discharged is 80 DEG C.
Adopt waste-heat recovery device after first dedusting, first high-temperature dust-containing flue gas being entered to composite carbon-copper material filter-element dust collector purifies, composite carbon-copper material filter core in deduster, generally can bear the long-term work temperature of 700 DEG C of left and right, high energy bears the high temperature of 800 DEG C, and can bear that high temperature is oarse-grained to be washed away, therefore can direct purification high-temperature flue gas, and do not need to do any pretreatment.Dust concentration after purification is down to 12mg/Nm
3become clean flue gas, device for generating power by waste heat does not need to process the problem such as obstruction, deashing of dust.
Because thermal storage temperature equalizer can be to flue-gas temperature peak load shifting, reduce flue gas maximum temperature, reduce the fluctuating range of flue-gas temperature, alleviate the rapid drawdown that rises sharply of flue-gas temperature, thereby can reduce the investment of device for generating power by waste heat, improve the stability of device for generating power by waste heat, and can configure safely all kinds of waste heat power generation equipments.
Maximum feature of the present invention is to adopt thermal storage temperature equalizer, reduce the peak value of flue-gas temperature, adopt low boiling working fluid organic Rankine circulation cogeneration to reclaim the waste heat of electric furnace flue gas, cooling from shell-and-tube cooler recirculated cooling water out by lithium-bromide absorption-type refrigerating machine, the temperature of cooling water is down to 10～15 DEG C, meet working substance steam and be condensed into the requirement of saturated liquid to cooling water, adopt working medium fluid reservoir, can guarantee working medium circulating pump continuous pressure, adopt drum can filtering source of the gas in supersaturation moisture content and impurity, guarantee steam turbine even running, heat energy in recovered flue gas is converted into high-grade electric energy to greatest extent.
Taking the waste heat recovery of 90t/h electric furnace and dust collecting process as example, the inventive method and conventional method comparison, be described as follows:
Note: work per year and calculate for 330th.
As can be seen here, the inventive method to greatest extent heat energy in recovered flue gas is converted into high-grade electric energy, primary surface heat exchanger need not unload ash, deashing, defeated grey facility, extend the service life of equipment, can reduce the exhaust temperature of flue gas simultaneously, and do not affect the stable and continuous of electric furnace steel making production, the environment protecting that can also obtain, the dust concentration 12mg/Nm of discharge
3.Plant investment is low, operation energy consumption is low.
Claims (2)
1. with the electric furnace flue gas cogeneration energy-saving dedusting method of fluid reservoir, it is characterized in that: electric furnace flue gas of the present invention is by discharging in stove, sneak into cold wind through water-cooled flue, after burning CO gas, enter combustion settling chamber, the effect of combustion settling chamber is: reduce flue gas flow rate, make the big dust particle sedimentation of carrying in flue gas, and suitably sneak into cold wind, finally burn CO gas, 650 DEG C of the flue-gas temperatures of adjusting control expansion chamber, flue gas through combustion settling chamber enters hot precipitator, described hot precipitator is high temperature resistant composite carbon-copper material filter-element dust collector, dust concentration 12mg/Nm after dedusting
3, high-temperature flue gas through dedusting enters thermal storage temperature equalizer, described thermal storage temperature equalizer comprises gas approach, composite material of silicon carbide heat storage, shock-wave ash-clearing device, exhanst gas outlet and ash bucket, described composite material of silicon carbide heat storage is arranged between gas approach and exhanst gas outlet, described shock-wave ash-clearing device step-by-step arrangement is between heat storage, by composite material of silicon carbide heat storage in thermal storage temperature equalizer to the heat-accumulating and temperature-equalizing effect of high-temperature flue gas after, flue gas enters in collection chamber, high-temperature flue gas is emitted heat, complete heat exchange, temperature is down to 80 DEG C of left and right, be pressed into aiutage by main air blower and enter atmosphere, simultaneously, recirculated water drives by heat exchanger feed pump, enter the heat that absorbs flue gas in the primary surface heat exchanger being installed in collection chamber, form steam water interface, steam water interface is tried hard to recommend under moving and is entered in shell-and-tube evaporator in Natural Circulation, emit heat, become water at low temperature, water at low temperature flows into circulating water pool, start new round circulation, low boiling working fluid drives by working medium pump, in shell-and-tube evaporator, absorb the heat of steam water interface, become saturated vapor, enter drum, drum can filtering source of the gas in supersaturation moisture content and impurity, guarantee steam turbine even running, working substance steam is by after pressure regulator valve, in low boiling working fluid steam turbine, expand and do work, and drive threephase generator to generate electricity, the electric energy that system is sent is three-phase alternating current, rated voltage is 380V, can after pressure regulation, be incorporated to electrical network in factory, or directly give consumer use, the working substance steam of discharging from low boiling working fluid steam turbine is saturated liquid by copper fin-plate type condenser condenses, enter fluid reservoir, fluid reservoir can be guaranteed working medium circulating pump continuous pressure, working medium circulating pump will be sent in shell-and-tube evaporator after worker quality liquid pressurization, start new round circulation, from copper fin-plate type condenser recirculated water out, cooling by lithium-bromide absorption-type refrigerating machine, the temperature of cooling water is down to 10～15 DEG C, meet working substance steam and be condensed into the requirement of saturated liquid to cooling water, send in copper fin-plate type condenser through water pump, start new round circulation.
2. the electric furnace flue gas cogeneration energy-saving dedusting method with fluid reservoir according to claim 1, is characterized in that: adopting R227ea is circulation organic working medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210516020.5A CN103836987A (en) | 2012-11-26 | 2012-11-26 | Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210516020.5A CN103836987A (en) | 2012-11-26 | 2012-11-26 | Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with liquid storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836987A true CN103836987A (en) | 2014-06-04 |
Family
ID=50800721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210516020.5A Pending CN103836987A (en) | 2012-11-26 | 2012-11-26 | Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with liquid storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836987A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959041A (en) * | 2019-04-17 | 2019-07-02 | 山东建筑大学 | A comprehensive system and method for recycling and utilizing waste heat of oil fume |
| CN113976644A (en) * | 2021-10-29 | 2022-01-28 | 唐山市宝凯科技有限公司 | Method and device for recovering waste heat of hot-rolled steel billet finished product cooling bed |
| CN114294039A (en) * | 2021-12-14 | 2022-04-08 | 天地科技股份有限公司 | No-power-consumption carbon dioxide multi-path recovery device in coal mine air shaft |
-
2012
- 2012-11-26 CN CN201210516020.5A patent/CN103836987A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959041A (en) * | 2019-04-17 | 2019-07-02 | 山东建筑大学 | A comprehensive system and method for recycling and utilizing waste heat of oil fume |
| CN109959041B (en) * | 2019-04-17 | 2023-10-10 | 山东建筑大学 | A comprehensive system and method for recovering and utilizing oil fume waste heat |
| CN113976644A (en) * | 2021-10-29 | 2022-01-28 | 唐山市宝凯科技有限公司 | Method and device for recovering waste heat of hot-rolled steel billet finished product cooling bed |
| CN114294039A (en) * | 2021-12-14 | 2022-04-08 | 天地科技股份有限公司 | No-power-consumption carbon dioxide multi-path recovery device in coal mine air shaft |
| CN114294039B (en) * | 2021-12-14 | 2023-12-22 | 天地科技股份有限公司 | A multi-channel carbon dioxide recovery device without power consumption in coal mine air shafts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103836987A (en) | Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with liquid storage tank | |
| CN103383195A (en) | Waste heat utilization and dust removing method for electric furnace flue gas with thermal storage soaking device | |
| CN103017553A (en) | Regenerative submerged arc furnace flue gas waste heat power generation method | |
| CN202145097U (en) | Flue gas heat accumulating type waste heat power generation special equipment for metallurgical furnace | |
| CN103836990A (en) | Electric furnace flue gas organic Rankine waste heat power-generation energy-conservation and dust-removal method | |
| CN202145099U (en) | Flue-gas organic Rankine waste heat power generation device with thermal storage temperature equalizer for metallurgical furnace | |
| CN103836988A (en) | High-ash-laden gas organic Rankine waste heat power generation and dust removal method of submerged arc furnace | |
| CN103134330A (en) | Power generation energy-saving and dedusting method by using multi-level organic Rankine waste heat of smoke in iron alloy furnace | |
| CN202915738U (en) | Special equipment for cogeneration, energy saving and dust removing of flue gas of semi-closed electric furnace | |
| CN203132372U (en) | Special equipment for organic Rankine waste-heat power generation of flue gas with high dust content in metallurgical furnace | |
| CN203116545U (en) | High-temperature flue gas waste heat power generation special-purpose device for cupola furnace | |
| CN203116541U (en) | High dust-content flue gas waste heat power generation device for submerged arc furnace | |
| CN103383193A (en) | Integrated dust removing method for high-dust flue gas of electric furnace | |
| CN103383202A (en) | Organic Rankine waste heat generating and dust removing method utilizing flue gas from interior of electric furnace | |
| CN103836989A (en) | Flue gas waste heat power-generation energy-conservation and dust-removal method for electric furnace with thermal storage temperature evening device | |
| CN103016073A (en) | Method for generating power by using waste heat of smoke of ferroalloy furnace with heat accumulation temperature-balancing device | |
| CN202254896U (en) | A semi-hermetic electric furnace flue gas multi-stage organic Rankine waste heat power generation device with heat storage homogenizer | |
| CN104748562A (en) | Cupola smoke temperature uniformizing type waste heat power generation, energy conservation and dust removal method | |
| CN202915735U (en) | Specific equipment with steam drum for metallurgical furnace flue gas waste heat power generation energy-saving dedusting | |
| CN103383197A (en) | Method for generating power and removing dust by organic rankine waste heat in submerged arc furnace smoke | |
| CN103017550A (en) | Power generation and dedusting method by utilizing waste heat of high-temperature alternating exhaust gas in electric furnace through organic rankine cycle | |
| CN104748561A (en) | Smoke waste heat power generation energy-saving dust removing method for metallurgical furnace | |
| CN202915737U (en) | Special equipment for waste heat power generation, energy conservation and dust removal for high-temperature flue gas of electric furnace | |
| CN104764334A (en) | Dust-high-contained smoke organic Rankin waste heat electricity generation method of cupola furnace | |
| CN104344733A (en) | Organic Rankine waste heat power generation method for flue gas frommetallurgical furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |