CN106439781A - Combined boiler smoke waste heat recycling system - Google Patents
Combined boiler smoke waste heat recycling system Download PDFInfo
- Publication number
- CN106439781A CN106439781A CN201510485778.0A CN201510485778A CN106439781A CN 106439781 A CN106439781 A CN 106439781A CN 201510485778 A CN201510485778 A CN 201510485778A CN 106439781 A CN106439781 A CN 106439781A
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- China
- Prior art keywords
- gas cooler
- cooler
- air heater
- gas
- desulfurizing tower
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Abstract
The invention relates to a combined boiler smoke waste heat recycling system. The combined boiler smoke waste heat recycling system comprises a boiler, an air way and a smoke way are arranged on the boiler, an air heater is arranged on the air way, a forced draught blower is arranged below the air heater, air preheaters are arranged at the positions, above the air heater, of the air way and the smoke way, an outlet of the smoke way is connected with one side of an electrostatic precipitator, the other side of the electrostatic precipitator is connected with one side of a first smoke cooler, the other side of the first smoke cooler is connected with the one side of a pressurized draught fan, and the other side of the pressurized draught fan is connected with one side of a second smoke cooler; the other side of the second smoke cooler is connected with the lower portion of one side of a desulfurizing tower, and the upper portion of the other side of the desulfurizing tower is connected with the lower portion of one side of a wet chimney. Exhaust heat is recycled, the exhaust temperature is reduced, the water consumption of the desulfurizing tower is saved, and the boiler efficiency is improved.
Description
Technical field
The present invention relates to a kind of residual neat recovering system is and in particular to a kind of flue gas waste heat recovery system
System.
Background technology
At present, flue gas is the main path that general energy consumption equipment wastes energy, such as boiler exhaust gas
Power consumption is about 15%, and the forming machine of other equipment such as dyeing, dehydrator and kiln
The main power consumption such as stove is all by fume emission.Generally existing in the use of present Industrial Boiler
Heat utilization ratio low, residual heat of exhaust flue gas temperature is too high, and pollution environmental gas in flue gas
The problems such as too high levels.Industrial Boiler is the main thermal power equipment of China at present, with me
Cross rapid economic development, energy resource consumption increasingly increases, the problem that urban air quality goes from bad to worse
All the more prominent.
Content of the invention
Goal of the invention：The invention aims to overcoming deficiency of the prior art, provide one
Plant smoke discharging residual heat to recycle, reduce exhaust gas temperature, save the water consumption of desulfurizing tower, improve pot
The efficiency of furnace, the composite boiler flue gas waste heat recovery system of environmental protection.
Technical scheme：In order to solve above-mentioned technical problem, a kind of combination type pot of the present invention
Furnace flue gas exhaust heat recovery system, it includes boiler, and outside described boiler wall, middle and upper part is provided with
Air channel, is provided with flue in described boiler wall outer upper, is provided with steam air heater on described air channel,
It is provided with pressure fan below described steam air heater, the air channel above described steam air heater and flue set
There is air preheater, the outlet of described flue is connected with electrostatic precipitator side, and described electrostatic removes
Dirt device opposite side is connected with the first gas cooler side, described first gas cooler opposite side
It is connected with booster fan side, described booster fan opposite side and the second gas cooler side phase
Even, described second gas cooler opposite side is connected with desulfurizing tower one side lower part, described desulfurizing tower
Another upper lateral part is connected with Wet chimney one side lower part, in described steam air heater and the first gas cooler
With second be provided with cold and hot water coke slurry pipeline, in described first gas cooler between gas cooler
With second be provided with cooler connecting tube road, in described cold and hot water coke slurry pipeline between gas cooler
It is provided with water pump, between described Wet chimney bottom and desulfurizing tower bottom, be provided with the first connecting tube
Road, is provided with the first acid-proof pump on described first connecting pipe, outside described desulfurizing tower tower wall
It is provided with the second connecting pipe between bottom to middle and upper part, described second connecting pipe is provided with
Two acid-proof pumps.
Described cold and hot water coke slurry pipeline is divided into cold water pipes and hot water pipeline, in described hot water pipeline
It is provided with water pump, described cold water pipes are located between steam air heater and the first gas cooler top,
Described hot water pipeline is located between steam air heater and the second gas cooler top.
Described cooler connecting tube road is located at the first gas cooler and the second gas cooler top
Portion.
Beneficial effect：Compared with prior art, its remarkable advantage is the present invention：The present invention is overall
Structure setting rationally, using cold and hot water coke slurry pipeline connect steam air heater and the first gas cooler,
Second gas cooler, recycles cooler connecting tube road, is circulated heat exchange, adopts
Air preheater, the burner hearth that hot-air sends into boiler is combustion-supporting, improves combustion position, using electrostatic
Cleaner unit, carries out flue gas ash removal, using the first gas cooler and the second gas cooler, drops
Low flue-gas temperature, Mist heat recovering, after supercooling, temperature drops to optimal desulfurization temperature to flue gas
Degree is passed through desulfurizing tower, and not only desulfuration efficiency is high, and evaporated water is greatly reduced, and adopts first
Acid-proof pump and the second acid-proof pump, not only effectively improve the reclamation rate of acid, and can improve wet cigarette
The usage safety performance of chimney, the system can improve boiler efficiency, energy-conserving and environment-protective, meets reality
Use requirement.
Brief description
Fig. 1 is the structural representation of the present invention.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of composite boiler flue gas waste heat recovery system of the present invention,
It includes boiler 1, and outside described boiler 1 furnace wall, middle and upper part is provided with air channel 2, in described pot
Stove 1 furnace wall outer upper is provided with flue 3, is provided with steam air heater 4, in institute on described air channel 2
State and below steam air heater 4, be provided with pressure fan 5, the air channel 2 above described steam air heater 4 and flue
3 are provided with air preheater 6, and the outlet of described flue 3 is connected with electrostatic precipitator 7 side,
Described electrostatic precipitator 7 opposite side is connected with the first gas cooler 8 side, described first cigarette
Gas Cooler 8 opposite side is connected with booster fan 9 side, described booster fan 9 opposite side with
Second gas cooler 10 side is connected, described second gas cooler 10 opposite side and desulfurization
Tower 11 1 side lower part is connected, under another upper lateral part of described desulfurizing tower 11 and Wet chimney 12 side
Portion is connected, in described steam air heater 4 and the first gas cooler 8 and the second gas cooler 10
Between be provided with cold and hot water coke slurry pipeline, described first gas cooler 8 and the second flue gas cooling
It is provided with cooler connecting tube road 13 between device 10, described cold and hot water coke slurry pipeline is provided with water
Pump 14, is provided with the first connecting tube between described Wet chimney 12 bottom and desulfurizing tower 11 bottom
Road 15, is provided with the first acid-proof pump 16, in described desulfurizing tower on described first connecting pipe 15
11 tower wall outer lower portion are provided with the second connecting pipe 17 to middle and upper part, described second even
Adapter road 17 is provided with the second acid-proof pump 18；Described cold and hot water coke slurry pipeline is divided into cold water pipes
19 and hot water pipeline 20, water pump 14, described cold water pipe are provided with described hot water pipeline 20
Road 19 is located between steam air heater 4 and the first gas cooler 8 top, described hot water pipeline 20
It is located between steam air heater 4 and the second gas cooler 10 top；Described cooler connecting tube road
13 are located at the first gas cooler 8 and the second gas cooler 10 top.The present invention integrally ties
Structure setting rationally, using cold and hot water coke slurry pipeline connect steam air heater and the first gas cooler, the
Two gas coolers, recycle cooler connecting tube road, are circulated heat exchange, using sky
Air preheater, the burner hearth that hot-air sends into boiler is combustion-supporting, improves combustion position, is removed using electrostatic
Dirt device, carries out flue gas ash removal, using the first gas cooler and the second gas cooler, reduces
Flue-gas temperature, Mist heat recovering, after supercooling, temperature drops to optimal desulfurization temperature to flue gas
It is passed through desulfurizing tower, not only desulfuration efficiency is high, and evaporated water is greatly reduced, resistance to using first
Sour pump and the second acid-proof pump, not only effectively improve the reclamation rate of acid, and can improve Wet chimney
Usage safety performance, the system can improve boiler efficiency, energy-conserving and environment-protective, meet actual making
With requiring.
The invention provides a kind of thinking and method, implement method and the way of this technical scheme
Footpath is a lot, and the above is only the preferred embodiment of the present invention it is noted that for this skill
For the those of ordinary skill in art field, under the premise without departing from the principles of the invention, acceptable
Make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention,
In the present embodiment, all available prior art of clearly not each ingredient is realized.
Claims (3)
1. a kind of composite boiler flue gas waste heat recovery system it is characterised in that：It includes pot
Stove (1), outside described boiler (1) furnace wall, middle and upper part is provided with air channel (2), in described pot
Stove (1) furnace wall outer upper is provided with flue (3), is provided with steam air heater on described air channel (2)
(4), it is provided with pressure fan (5) below described steam air heater (4), in described steam air heater (4)
The air channel (2) of top and flue (3) are provided with air preheater (6), described flue (3)
Outlet be connected with electrostatic precipitator (7) side, described electrostatic precipitator (7) opposite side with
First gas cooler (8) side be connected, described first gas cooler (8) opposite side with
Booster fan (9) side is connected, and described booster fan (9) opposite side and the second flue gas cool down
Device (10) side is connected, described second gas cooler (10) opposite side and desulfurizing tower (11)
One side lower part is connected, under another upper lateral part of described desulfurizing tower (11) and Wet chimney (12) side
Portion is connected, in described steam air heater (4) and the first gas cooler (8) and the cooling of the second flue gas
Be provided with cold and hot water coke slurry pipeline between device (10), in described first gas cooler (8) and
It is provided with cooler connecting tube road (13), described cold and hot between second gas cooler (10)
Water coke slurry pipeline is provided with water pump (14), in described Wet chimney (12) bottom and desulfurizing tower (11)
It is provided with the first connecting pipe (15) between bottom, described first connecting pipe (15) sets
Have the first acid-proof pump (16), described desulfurizing tower (11) tower wall outer lower portion to middle and upper part it
Between be provided with the second connecting pipe (17), described second connecting pipe (17) is provided with second
Acid-proof pump (18).
2. composite boiler flue gas waste heat recovery system according to claim 1, it is special
Levy and be：Described cold and hot water coke slurry pipeline is divided into cold water pipes (19) and hot water pipeline (20),
Water pump (14) is provided with described hot water pipeline (20), described cold water pipes (19) are located at
Between steam air heater (4) and the first gas cooler (8) top, described hot water pipeline (20)
It is located between steam air heater (4) and the second gas cooler (10) top.
3. composite boiler flue gas waste heat recovery system according to claim 1, it is special
Levy and be：Described cooler connecting tube road (13) is located at the first gas cooler (8) and
Two gas coolers (10) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485778.0A CN106439781B (en) | 2015-08-10 | 2015-08-10 | A kind of composite boiler flue gas waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485778.0A CN106439781B (en) | 2015-08-10 | 2015-08-10 | A kind of composite boiler flue gas waste heat recovery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106439781A true CN106439781A (en) | 2017-02-22 |
| CN106439781B CN106439781B (en) | 2019-05-28 |
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ID=58093306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510485778.0A Active CN106439781B (en) | 2015-08-10 | 2015-08-10 | A kind of composite boiler flue gas waste heat recovery system |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900347A (en) * | 2010-08-03 | 2010-12-01 | 山东泓奥电力科技有限公司 | System for high-grade recycling waste heat of smoke discharged from boiler of power station |
| CN202177093U (en) * | 2011-05-19 | 2012-03-28 | 中国电力工程顾问集团华东电力设计院 | Multi-level efficient displacement type fume waste-heat utilization system |
| CN203549875U (en) * | 2013-11-05 | 2014-04-16 | 上海和衡能源科技发展有限公司 | Coal-fired power plant thermodynamic system for achieving energy conservation and emission reduction and avoiding SO3 low temperature corrosion |
| CN204494453U (en) * | 2015-02-10 | 2015-07-22 | 西安西热锅炉环保工程有限公司 | A kind of energy-saving and emission-reduction system based on the exhaust heat stepped utilization of coal steam-electric plant smoke |
| CN104791761A (en) * | 2015-04-20 | 2015-07-22 | 广州粤能电力科技开发有限公司 | Step utilization device for boiler flue gas waste heat |
| CN204901732U (en) * | 2015-08-10 | 2015-12-23 | 江苏海德节能科技有限公司 | Modular waste heat of boiler flue gas recovery system |
-
2015
- 2015-08-10 CN CN201510485778.0A patent/CN106439781B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900347A (en) * | 2010-08-03 | 2010-12-01 | 山东泓奥电力科技有限公司 | System for high-grade recycling waste heat of smoke discharged from boiler of power station |
| CN202177093U (en) * | 2011-05-19 | 2012-03-28 | 中国电力工程顾问集团华东电力设计院 | Multi-level efficient displacement type fume waste-heat utilization system |
| CN203549875U (en) * | 2013-11-05 | 2014-04-16 | 上海和衡能源科技发展有限公司 | Coal-fired power plant thermodynamic system for achieving energy conservation and emission reduction and avoiding SO3 low temperature corrosion |
| CN204494453U (en) * | 2015-02-10 | 2015-07-22 | 西安西热锅炉环保工程有限公司 | A kind of energy-saving and emission-reduction system based on the exhaust heat stepped utilization of coal steam-electric plant smoke |
| CN104791761A (en) * | 2015-04-20 | 2015-07-22 | 广州粤能电力科技开发有限公司 | Step utilization device for boiler flue gas waste heat |
| CN204901732U (en) * | 2015-08-10 | 2015-12-23 | 江苏海德节能科技有限公司 | Modular waste heat of boiler flue gas recovery system |
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| Publication number | Publication date |
|---|---|
| CN106439781B (en) | 2019-05-28 |
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