CN102121703B - Mixed type flue gas reheating system suitable for wet type flue gas purification process of high-cold region - Google Patents
Mixed type flue gas reheating system suitable for wet type flue gas purification process of high-cold region Download PDFInfo
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Abstract
The invention discloses a mixed type flue gas reheating system suitable for a wet type flue gas purification process of a high-cold area and relates to a flue gas reheating system, aiming to solve the problem that the purposes of purifying flue gas and effectively warming up are difficult to achieve under the condition of guaranteeing higher desulfuration efficiency by the prior flue gas reheating device because raw flue gas temperature is lower. The invention adopts the technical scheme that after high-temperature flue gas is subjected to dust removal through a high-temperature dust remover, the high-temperature flue gas is sent into a uniform mixing heat exchange device through a draught fan or directly to be directly mixed with purified flue gas so as to heat the purified flue gas; then the high-temperature flue gas is led out from a regulation valve and enters a gas-gas heat exchanger; cold air enters the heat exchanger through an air fan to exchange heat with the high-temperature flue gas, and obtained high-temperature air is sent into the uniform mixing heat exchange device to heat the purified flue gas; and the high-temperature flue gas or air directly exchanges heat with purified flue gas in the uniform mixing heat exchange device so as to realize the rise of the flue gas temperature and the evaporation phase change of micro liquid drops in saturated wet-containing flue gas.
Description
Technical field
The present invention relates to a kind of flue gas reheat system, particularly a kind of hybrid flue gas reheat system that is applicable to extremely frigid zones wet type flue gas purifying technique belongs to the flue gases purification field.
Background technology
Existing wet type smoke eliminator, the flue gas after demist generally contains the acid drop (pH value 4.5-5.5 is about chlorine ion concentration 20000PPm) that is no more than 75mg/NM3, and flue-gas temperature is reduced to about 45-55 ℃, becomes wet saturated flue gas.After the cleaning equipment, continue cooling like flue gas and can cause water recovery and the droplet of taking out of in the flue gas together to cause the corrosion of back-end ductwork, chimney, baffle door, measurement original paper etc., bring potential safety hazard to system.Particularly for extremely frigid zones, environmental low temperature can cause bigger temperature drop, and problem is more serious.
Increase gas-gas heat exchanger (GGH) or the vapour source heat exchangers of adopting to purifying back flue-gas temperature lifting more in the prior art.But its equipment investment and floor space are big, and operating cost is high; Often can not move by continous-stable by the demist influential effect, the GGH obstruction has all appearred in many power plant, problems such as the rainy gypsum of chimney.
China's utility model patent (ZL200620084438.3) has been invented a kind of flue gas reheat device.This device is provided with flue gas heater 10 in boiler body flue flue, the air (5-7%) of portion of air preheater is incorporated in this flue gas heater, delivers to flue gas air mixing device 11 after the heating.20-25 ℃ of lifting flue-gas temperature.This scheme needs boiler body is implemented to transform, and need draw boiler air preheater 5-7%, may influence former combustion system, referring to accompanying drawing 5.
Chinese invention patent (200610037683.3) discloses a kind of separated smoke re-heater and heat-exchange method thereof.This smoke re-heater is divided into former flue gas heat exchange device 1 and clean flue gas heat exchange device 3 two parts, and this part is communicated with to get up through vapor uptake 2 and condensate down-comer 4.At former flue gas heat exchange device 1, hot flue gas is passed to circulating fluid with heat; Evaporate behind the heated liquid, the steam of generation reaches clean flue gas heat exchange device 3 along tedge 2, is condensed into liquid after the release heat, gets back to former flue gas heat exchange device.This system exists heating surface need consider that negative pressure such as can not stablize for a long time at problem in anticorrosion, the pipe, referring to accompanying drawing 6.
For this reason, Chinese utility model patent (200520200585.8) has been invented the device that the former flue gas of a kind of wet type desulfurizing flue gas blending improves the flue gas exhaust gas temperature.This device mixes the part of former flue gas with clean flue gas, play the purpose that clean flue gas is heated, because former flue-gas temperature is lower, under guaranteeing than the high desulfurization efficiency requirement, is difficult to reach the purpose that effectively heats.
Summary of the invention
The present invention exists because former flue-gas temperature is lower in order to solve existing flue gas reheat device; Under guaranteeing to require, be difficult to the problem that realizes that flue effectively heats, and then a kind of hybrid flue gas reheat system that is applicable to extremely frigid zones wet type flue gas purifying technique is provided than high desulfurization efficiency.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
Technical scheme one, flue gas reheat according to the invention system comprise high temperature outlet regulating door, hot precipitator, high-temperature flue gas air-introduced machine, high temperature inlet adjustment doors and even mixed heat transfer device; Said high temperature outlet regulating door is arranged on the high-temperature flue gas exit on the boiler; The high-temperature flue gas that takes out from the suitable place of boiler gets in the even mixed heat transfer device through high temperature outlet regulating door, hot precipitator, high-temperature flue gas air-introduced machine and high temperature inlet adjustment doors successively; The flue that flows out from the desulfurizing tower outlet gets in the even mixed heat transfer device, and high-temperature flue gas and flue are evenly mixed the outlet outflow of back from even mixed heat transfer device in even mixed heat transfer device.
Technical scheme two, flue gas reheat according to the invention system comprise high temperature outlet regulating door, hot precipitator, high temperature inlet adjustment doors, evenly mixed heat transfer device, deduster, desulfurizing tower and heating flue air-introduced machine; Said high temperature outlet regulating door is arranged on the high-temperature flue gas exit on the boiler; The high-temperature flue gas that takes out from the suitable place of boiler gets in the even mixed heat transfer device through high temperature outlet regulating door, hot precipitator and high temperature inlet adjustment doors successively; The flue gas of discharging from boiler is in deduster gets into desulfurizing tower; The flue that flows out from the desulfurizing tower outlet gets in the even mixed heat transfer device; High-temperature flue gas and flue are evenly mixed the flue that obtains heating in even mixed heat transfer device, and the flue of heating flows out through heating flue air-introduced machine from the outlet of even mixed heat transfer device to be sent in the chimney.
Technical scheme three, flue gas reheat according to the invention system comprise high temperature outlet regulating door, gas-to-gas heat exchanger, high temperature inlet adjustment doors, evenly smoke induced draught fan, deduster, mixed flue gas air-introduced machine, desulfurizing tower and air blower after mixed heat transfer device, the heat exchange; Said high temperature outlet regulating door is arranged on the high-temperature flue gas exit on the boiler; The high-temperature flue gas that takes out from the suitable place of boiler gets in the gas-to-gas heat exchanger through high temperature outlet regulating door; Cold air is sent in the gas-to-gas heat exchanger by air blower, and the high temperature air that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger gets in the even mixed heat transfer device through high temperature inlet adjustment doors; Low-temperature flue gas smoke induced draught fan after heat exchange that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger gets in the deduster; The flue gas of discharging from boiler also gets in the deduster; Send in the desulfurizing tower through the mixed flue gas air-introduced machine from the flue gas that the deduster outlet is flowed out, the flue that flows out from the desulfurizing tower outlet gets in the even mixed heat transfer device; High temperature air and flue are evenly mixed purifying air of obtaining heating in even mixed heat transfer device.
Technical scheme four, flue gas reheat according to the invention system comprise high temperature outlet regulating door, gas-to-gas heat exchanger, high temperature inlet adjustment doors, evenly mixed heat transfer device, deduster, desulfurizing tower, air blower and heating flue air-introduced machine; Said high temperature outlet regulating door is arranged on the high-temperature flue gas exit on the boiler; The high-temperature flue gas that takes out from the suitable place of boiler gets in the gas-to-gas heat exchanger through high temperature outlet regulating door; Cold air is sent in the gas-to-gas heat exchanger by air blower, and the high temperature air that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger gets in the even mixed heat transfer device through high temperature inlet adjustment doors; High-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger low-temperature flue gas gets in the deduster; The flue gas of discharging from boiler also gets in the deduster; Send in the desulfurizing tower from the flue gas that the deduster outlet is flowed out; The flue that flows out from the desulfurizing tower outlet gets in the even mixed heat transfer device; High-temperature flue gas and flue are evenly mixed the flue that obtains heating in even mixed heat transfer device, and the flue of heating flows out through heating flue air-introduced machine from the outlet of even mixed heat transfer device to be sent in the chimney.
The invention has the beneficial effects as follows:
Characteristics of the present invention are high-temperature flue gas or air are directly evenly accomplished heat exchange in the mixed heat transfer device with purifying the back flue gas, realize the lifting and the saturated evaporative phase-change that contains fine droplet in the wet flue gas of flue-gas temperature.Realized effectively heating of flue.The more important thing is, realized the wet type gas cleaning after flue-gas temperature effectively improve, particularly for the extremely frigid zones wet purifying decice, avoided having realized the evaporative phase-change that contains fine droplet in the wet flue gas to saturated because of heat radiation causes condensing of water vapour in the flue gas.The application of device according to the invention has guaranteed wet type smoke eliminator safety, stable operation, has avoided corrosion such as gypsum rain, back-end ductwork, chimney and equipment.Application of the present invention makes high-temperature flue gas hybrid technique good economy performance, high temperature air hybrid technique desulfuration efficiency high.
Description of drawings
Fig. 1 is that (among the figure: I representes that negative pressure section system, II represent malleation section system for structure and the schematic flow sheet of the specific embodiment of the invention one; 6-1 representes the slurries pond); Fig. 2 is that (among the figure: I representes that negative pressure section system, II represent malleation section system for structure and the schematic flow sheet of the specific embodiment of the invention two; 6-1 representes the slurries pond), Fig. 3 is the structure and the schematic flow sheet (among the figure: II representes malleation section system, and 6-1 representes the slurries pond) of the specific embodiment of the invention three; Fig. 4 is the structure and the schematic flow sheet (among the figure: I representes that negative pressure section system, II represent malleation section system, and 6-1 representes the slurries pond) of the specific embodiment of the invention four; Fig. 5 is the structure knot sketch map of a kind of flue gas reheat device of prior art, and Fig. 6 is the structure knot sketch map of another kind of flue gas reheat device of the prior art.
The specific embodiment
The specific embodiment one: as shown in Figure 1; The hybrid flue gas reheat system that this embodiment is described to be applicable to extremely frigid zones wet type flue gas purifying technique comprises high temperature outlet regulating door 1, hot precipitator 2, high-temperature flue gas air-introduced machine 3, high temperature inlet adjustment doors 4 and even mixed heat transfer device 5; Said high temperature outlet regulating door 1 is arranged on the high-temperature flue gas exit on the boiler 7; The high-temperature flue gas that takes out from the suitable place of boiler gets in the even mixed heat transfer device 5 through high temperature outlet regulating door 1, hot precipitator 2, high-temperature flue gas air-introduced machine 3 and high temperature inlet adjustment doors 4 successively; The flue that flows out from desulfurizing tower 6 outlets gets in the even mixed heat transfer device 5, and high-temperature flue gas and flue are evenly mixed the outlet outflow of back from even mixed heat transfer device 5 in even mixed heat transfer device 5.
Flue gas purification system is in the work of malleation section in this embodiment, and high-temperature flue gas gets into even mixed heat transfer device through adjustment doors 1, hot precipitator, high-temperature blower, high temperature adjustment doors 2 according to this after the suitable place of boiler takes out.High temperature adjustment doors 1 is used for regulating the air inducing amount, also plays simultaneously and closes the high-temperature flue systemic effect.High temperature adjustment doors 2 is used for completely cutting off flue and high-temperature flue gas system.High-temperature flue gas, heats flue after air-introduced machine is sent into even mixed heat transfer device directly mixes with flue through the hot precipitator dedusting.
" boiler suitable place " described in this embodiment be meant and guaranteeing to take out flue-gas temperature higher (300-550 ℃), and be not taken in the primary zone, if can influence the efficiency of combustion of boiler in the primary zone.The hereinafter implication is identical.
The specific embodiment two: as shown in Figure 2; The hybrid flue gas reheat system that this embodiment is described to be applicable to extremely frigid zones wet type flue gas purifying technique comprises high temperature outlet regulating door 1, hot precipitator 2, high temperature inlet adjustment doors 4, evenly mixed heat transfer device 5, deduster 9, desulfurizing tower 6 and heating flue air-introduced machine 8; Said high temperature outlet regulating door 1 is arranged on the high-temperature flue gas exit on the boiler 7; The high-temperature flue gas that takes out from the suitable place of boiler gets in the even mixed heat transfer device 5 through high temperature outlet regulating door 1, hot precipitator 2 and high temperature inlet adjustment doors 4 successively; The flue gas of discharging from boiler 7 gets in the desulfurizing tower 6 through deduster 9; The flue that flows out from desulfurizing tower 6 outlets gets in the even mixed heat transfer device 5; High-temperature flue gas and flue are evenly mixed the flue that obtains heating in even mixed heat transfer device 5, and the flue of heating flows out through heating flue air-introduced machine 8 from the outlet of even mixed heat transfer device 5 to be sent in the chimney 10.
Flue gas purification system is in the work of negative pressure section in this embodiment, and high-temperature flue gas is drawn by high temperature adjustment doors place after get into even mixed heat exchanger behind the hot precipitator.The resistance of high-temperature flue gas system has system's air-introduced machine to overcome.High temperature adjustment doors 1 is used for regulating the air inducing amount, also plays simultaneously and closes the high-temperature flue systemic effect.High temperature adjustment doors 2 is used for completely cutting off flue and high-temperature flue gas system.
The specific embodiment three: as shown in Figure 3; The hybrid flue gas reheat system that present embodiment is described to be applicable to extremely frigid zones wet type flue gas purifying technique comprises high temperature outlet regulating door 1, gas-to-gas heat exchanger 14, high temperature inlet adjustment doors 4, evenly smoke induced draught fan 11, deduster 9, mixed flue gas air-introduced machine 13, desulfurizing tower 6 and air blower 12 after mixed heat transfer device 5, the heat exchange; Said high temperature outlet regulating door 1 is arranged on the high-temperature flue gas exit on the boiler 7; The high-temperature flue gas that takes out from the suitable place of boiler gets in the gas-to-gas heat exchanger 14 through high temperature outlet regulating door 1; Cold air is sent in the gas-to-gas heat exchanger 14 by air blower 12, and the high temperature air that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger 14 gets in the even mixed heat transfer device 5 through high temperature inlet adjustment doors 4; Low-temperature flue gas smoke induced draught fan 11 after heat exchange that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger 14 gets in the deduster 9; The flue gas of discharging from boiler 7 also gets in the deduster 9; The flue gas that flows out from deduster 9 outlet is in mixed flue gas air-introduced machine 13 is sent into desulfurizing tower 6, and the flue that flows out from desulfurizing tower 6 outlets gets in the even mixed heat transfer device 5; High temperature air and flue are evenly mixed purifying air of obtaining heating in even mixed heat transfer device 5.
Draw at high-temperature flue gas self-regulation door place, gets into gas-to-gas heat exchanger, then gets into high-temperature blower; Deliver to the original deduster of system by high-temperature blower at last; Cold air is sent into heat exchanger and high-temperature flue gas heat exchange by air blower, and the high temperature air that obtains is sent into even mixed heat transfer device, the heating flue.
The specific embodiment four: as shown in Figure 4; The hybrid flue gas reheat system that this embodiment is described to be applicable to extremely frigid zones wet type flue gas purifying technique comprises high temperature outlet regulating door 1, gas-to-gas heat exchanger 14, high temperature inlet adjustment doors 4, evenly mixed heat transfer device 5, deduster 9, desulfurizing tower 6, air blower 12 and heating flue air-introduced machine 8; Said high temperature outlet regulating door 1 is arranged on the high-temperature flue gas exit on the boiler 7; The high-temperature flue gas that takes out from the suitable place of boiler gets in the gas-to-gas heat exchanger 14 through high temperature outlet regulating door 1; Cold air is sent in the gas-to-gas heat exchanger 14 by air blower 12, and the high temperature air that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger 14 gets in the even mixed heat transfer device 5 through high temperature inlet adjustment doors 4; High-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger 14 low-temperature flue gas gets in the deduster 9; The flue gas of discharging from boiler 7 also gets in the deduster 9; Send in the desulfurizing tower 6 from the flue gas that deduster 9 outlets are flowed out; The flue that flows out from desulfurizing tower 6 outlets gets in the even mixed heat transfer device 5; High-temperature flue gas and flue are evenly mixed the flue that obtains heating in even mixed heat transfer device 5, and the flue of heating flows out through heating flue air-introduced machine 8 from the outlet of even mixed heat transfer device 5 to be sent in the chimney 10.
Draw at high-temperature flue gas self-regulation door place, gets into gas-to-gas heat exchanger, then gets into the original deduster of system.Cold air is sent into heat exchanger and high-temperature flue gas heat exchange by air blower, and the high temperature air that obtains is sent into even mixed heat transfer device, the heating flue.
Set forth as follows again to the present invention:
High-temperature flue gas hybrid plan of the present invention (high-temperature flue gas is directly evenly accomplished heat exchange in the mixed heat transfer device with purification back flue gas) good economy performance has directly been utilized the original heat of boiler, has practiced thrift the energy.
High temperature air hybrid plan (high temperature air is directly evenly accomplished heat exchange in the mixed heat transfer device with purification back flue gas) purification efficiency is high, has not only directly utilized the original heat of boiler, and has guaranteed the desulfurized effect of flue.
High-temperature flue gas hybrid plan: in the combustion apparatus appropriate location; Utilize the original negative pressure extracting high-temperature flue gas of air-introduced machine or system (300-550 ℃); High-temperature flue gas is evenly accomplished heat exchange in the mixed heat transfer device through direct after the dedusting and flue gas after being purified, realizes purifying back flue-gas temperature raising more than 15-50 ℃.
High temperature air hybrid plan: in the combustion apparatus appropriate location; Utilize the original negative pressure extracting high-temperature flue gas of air-introduced machine or system (300-550 ℃); High-temperature flue gas gets into external air heater and air heat exchange, and to 200-400 ℃, the flue gas after the cooling gets into the original cleaner of system with air heat; High temperature air and flue gas after being purified are evenly accomplished heat exchange in the mixed heat transfer device, realize purifying the back flue-gas temperature and improve more than 15-50 ℃.
Flue-gas temperature effectively improved after characteristics of the present invention were to have realized the wet type gas cleaning, particularly for the extremely frigid zones wet purifying decice, had avoided having realized the evaporative phase-change that contains fine droplet in the wet flue gas to saturated because of heat radiation causes condensing of water vapour in the flue gas.Through said process, guaranteed wet type smoke eliminator safety, stable operation, avoided corrosion such as gypsum rain, back-end ductwork, chimney and equipment.
Claims (4)
1. hybrid flue gas reheat system that is applicable to extremely frigid zones wet type flue gas purifying technique; It is characterized in that: said flue gas reheat system comprises high temperature outlet regulating door (1), hot precipitator (2), high-temperature flue gas air-introduced machine (3), high temperature inlet adjustment doors (4) and even mixed heat transfer device (5); Said high temperature outlet regulating door (1) is arranged on the high-temperature flue gas exit on the boiler (7); The high-temperature flue gas that takes out from the suitable place of boiler passes through high temperature outlet regulating door (1), hot precipitator (2), high-temperature flue gas air-introduced machine (3) and high temperature inlet adjustment doors (4) successively and gets in the even mixed heat transfer device (5); The suitable place of described boiler is meant and is guaranteeing to take out flue-gas temperature at 300-550 ℃, and is not taken in the primary zone; The flue that flows out from desulfurizing tower (6) outlet gets in the even mixed heat transfer device (5), and high-temperature flue gas and flue are evenly mixed the outlet outflow of back from even mixed heat transfer device (5) in even mixed heat transfer device (5).
2. hybrid flue gas reheat system that is applicable to extremely frigid zones wet type flue gas purifying technique; It is characterized in that: said flue gas reheat system comprises high temperature outlet regulating door (1), hot precipitator (2), high temperature inlet adjustment doors (4), evenly mixed heat transfer device (5), deduster (9), desulfurizing tower (6) and heat flue air-introduced machine (8); Said high temperature outlet regulating door (1) is arranged on the high-temperature flue gas exit on the boiler (7); The high-temperature flue gas that takes out from the suitable place of boiler passes through high temperature outlet regulating door (1), hot precipitator (2) and high temperature inlet adjustment doors (4) successively and gets in the even mixed heat transfer device (5); The suitable place of described boiler is meant and is guaranteeing to take out flue-gas temperature at 300-550 ℃, and is not taken in the primary zone; The flue gas of discharging from boiler (7) is in deduster (9) gets into desulfurizing tower (6); The flue that flows out from desulfurizing tower (6) outlet gets in the even mixed heat transfer device (5); High-temperature flue gas and flue are evenly mixed the flue that obtains heating in even mixed heat transfer device (5), and the flue of heating flows out through heating flue air-introduced machine (8) from the outlet of even mixed heat transfer device (5) to be sent in the chimney (10).
3. hybrid flue gas reheat system that is applicable to extremely frigid zones wet type flue gas purifying technique; It is characterized in that: said flue gas reheat system comprises high temperature outlet regulating door (1), gas-to-gas heat exchanger (14), high temperature inlet adjustment doors (4), evenly smoke induced draught fan (11), deduster (9), mixed flue gas air-introduced machine (13), desulfurizing tower (6) and air blower (12) after mixed heat transfer device (5), the heat exchange; Said high temperature outlet regulating door (1) is arranged on the high-temperature flue gas exit on the boiler (7); The high-temperature flue gas that takes out from the suitable place of boiler gets in the gas-to-gas heat exchanger (14) through high temperature outlet regulating door (1); The suitable place of described boiler is meant and is guaranteeing to take out flue-gas temperature at 300-550 ℃, and is not taken in the primary zone; Cold air is sent in the gas-to-gas heat exchanger (14) by air blower (12), and the high temperature air that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger (14) is in high temperature enters the mouth adjustment doors (4) the even mixed heat transfer device of entering (5); Low-temperature flue gas smoke induced draught fan (11) after heat exchange that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger (14) gets in the deduster (9); The flue gas of discharging from boiler (7) also gets in the deduster (9); The flue gas that flows out from deduster (9) outlet is in mixed flue gas air-introduced machine (13) is sent into desulfurizing tower (6), and the flue that flows out from desulfurizing tower (6) outlet gets in the even mixed heat transfer device (5); High temperature air and flue are evenly mixed purifying air of obtaining heating in even mixed heat transfer device (5).
4. hybrid flue gas reheat system that is applicable to extremely frigid zones wet type flue gas purifying technique; It is characterized in that: said flue gas reheat system comprises high temperature outlet regulating door (1), gas-to-gas heat exchanger (14), high temperature inlet adjustment doors (4), evenly mixed heat transfer device (5), deduster (9), desulfurizing tower (6), air blower (12) and heat flue air-introduced machine (8); Said high temperature outlet regulating door (1) is arranged on the high-temperature flue gas exit on the boiler (7); The high-temperature flue gas that takes out from the suitable place of boiler gets in the gas-to-gas heat exchanger (14) through high temperature outlet regulating door (1); The suitable place of described boiler is meant and is guaranteeing to take out flue-gas temperature at 300-550 ℃, and is not taken in the primary zone; Cold air is sent in the gas-to-gas heat exchanger (14) by air blower (12), and the high temperature air that high-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger (14) is in high temperature enters the mouth adjustment doors (4) the even mixed heat transfer device of entering (5); High-temperature flue gas and cold air carry out obtaining after the heat exchange in gas-to-gas heat exchanger (14) low-temperature flue gas gets in the deduster (9); The flue gas of discharging from boiler (7) also gets in the deduster (9); Send in the desulfurizing tower (6) from the flue gas that deduster (9) outlet is flowed out; The flue that flows out from desulfurizing tower (6) outlet gets in the even mixed heat transfer device (5); High temperature air and flue are evenly mixed the flue that obtains heating in even mixed heat transfer device (5), and the flue of heating flows out through heating flue air-introduced machine (8) from the outlet of even mixed heat transfer device (5) to be sent in the chimney (10).
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| CN103363540B (en) * | 2013-06-21 | 2016-04-27 | 广东电网公司电力科学研究院 | Intensification afterburning system under a kind of Power Station Boiler in Low Loads runs |
| CN103638784B (en) * | 2013-12-17 | 2016-06-15 | 中国能源建设集团广东省电力设计研究院有限公司 | A kind of external heated type wet flue gas dehumanization method and dehumidification system |
| CN107504511A (en) * | 2016-06-14 | 2017-12-22 | 天津华赛尔传热设备有限公司 | A kind of smoke heat exchanging system |
| CN107036120A (en) * | 2017-06-04 | 2017-08-11 | 西安富凯能源科技有限责任公司 | A kind of thermal power plant's afterbody chimney anticorrosion and pollutant deep removal system |
| CN108180493A (en) * | 2018-02-09 | 2018-06-19 | 杨君文 | Flue gas waste heat utilization device and its technique |
| CN108489082B (en) * | 2018-04-03 | 2020-04-21 | 深圳市海顿热能技术有限公司 | Energy-saving environment-friendly heating stove |
| CN114405680A (en) * | 2022-01-20 | 2022-04-29 | 湖南省楚雄环保科技有限公司 | High-efficiency wet dust removal and white elimination process and device |
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| DE3415238A1 (en) * | 1984-04-21 | 1985-10-31 | Balcke-Dürr AG, 4030 Ratingen | METHOD AND DEVICE FOR REHEATING SMOKE GASES |
| DE3909697A1 (en) * | 1989-03-23 | 1990-09-27 | Siemens Ag | Flue gas purification system |
| JP3868093B2 (en) * | 1998-02-17 | 2007-01-17 | バブコック日立株式会社 | Flue gas desulfurization device and its operation method |
| CN2810729Y (en) * | 2005-08-11 | 2006-08-30 | 吴金泉 | Apparatus for increasing fume emission temperature through mixing untreated fume with wet-method desulfurization fume |
| CN1818472A (en) * | 2006-01-10 | 2006-08-16 | 孙克勤 | Separated smoke re-heater and heat-exchanging method |
| CN2898626Y (en) * | 2006-05-18 | 2007-05-09 | 叶鹏 | Smoke reutilizer |
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