CN106439896A - Boiler smoke waste heat recycling system - Google Patents
Boiler smoke waste heat recycling system Download PDFInfo
- Publication number
- CN106439896A CN106439896A CN201510485550.1A CN201510485550A CN106439896A CN 106439896 A CN106439896 A CN 106439896A CN 201510485550 A CN201510485550 A CN 201510485550A CN 106439896 A CN106439896 A CN 106439896A
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- CN
- China
- Prior art keywords
- boiler
- desulfurizing tower
- hot water
- cold
- air heater
- 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.)
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Classifications
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention relates to a boiler smoke waste heat recycling system. The 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 smoke cooler, the other side of the 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; a first connecting pipeline is arranged between the lower portion of the wet chimney and the lower portion of the desulfurizing tower, a first anti-acid pump is arranged on the first connecting pipeline, a second connecting pipeline is arranged between the lower portion of the outer side and the upper middle portion of the wall of the desulfurizing tower, and a second anti-acid pump is arranged on the second connecting pipeline. 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 residual heat from boiler fume recovery system of environmental protection.
Technical scheme：In order to solve above-mentioned technical problem, a kind of boiler smoke of the present invention
Residual neat recovering system, it includes boiler, and outside described boiler wall, middle and upper part is provided with air channel,
It is provided with flue in described boiler wall outer upper, described air channel is provided with steam air heater, in institute
State and below steam air heater, be provided with pressure fan, the air channel above described steam air heater and flue are provided with sky
Air preheater, the outlet of described flue is connected with electrostatic precipitator side, described electrostatic precipitator
Opposite side is connected with gas cooler side, described gas cooler opposite side and desulfurizing tower side
Bottom is connected, and another upper lateral part of described desulfurizing tower is connected with Wet chimney one side lower part, warms up described
It is provided with cold and hot water coke slurry pipeline, in described cold and hot water coke slurry pipeline between wind device and 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.
It is provided with booster fan between described electrostatic precipitator and gas cooler.
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 and hot water coke slurry pipeline one end is located at described gas cooler top.
Beneficial effect：Compared with prior art, its remarkable advantage is the present invention：The present invention is overall
Structure setting rationally, connects steam air heater and gas cooler using cold and hot water coke slurry pipeline, carries out
Heat exchange, using air preheater, the burner hearth that hot-air sends into boiler is combustion-supporting, improves burning
Situation, using electrostatic precipitator, carries out flue gas ash removal, using gas cooler, reduces flue gas
Temperature, Mist heat recovering, after supercooling, temperature drops to optimal desulfurization temperature and is passed through flue gas
Desulfurizing tower, not only desulfuration efficiency is high, and evaporated water is greatly reduced, using the first acid-proof pump
With the second acid-proof pump, not only effectively improve the reclamation rate of acid, and making of Wet chimney can be improved
With security performance, the system can improve boiler efficiency, energy-conserving and environment-protective, meet actually used will
Ask.
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 residual heat from boiler fume recovery system of the present invention, it includes
Boiler 1, outside described boiler 1 furnace wall, middle and upper part is provided with air channel 2, outside described boiler 1 furnace wall
Upper lateral part is provided with flue 3, is provided with steam air heater 4 on described air channel 2, below described steam air heater 4
It is provided with pressure fan 5, the air channel 2 above described steam air heater 4 and flue 3 are provided with air preheater
6, the outlet of described flue 3 is connected with electrostatic precipitator 7 side, and described electrostatic precipitator 7 is another
Side is connected with gas cooler 8 side, described gas cooler 8 opposite side and desulfurizing tower 9 side
Bottom is connected, and another upper lateral part of described desulfurizing tower 9 is connected with Wet chimney 10 1 side lower part, in institute
State and between steam air heater 4 and gas cooler 8, be provided with cold and hot water coke slurry pipeline, hand in described hot and cold water
Change pipeline and be provided with water pump 11, be provided between described Wet chimney 10 bottom and desulfurizing tower 9 bottom
First connecting pipe 12, is provided with the first acid-proof pump 13, in institute on described first connecting pipe 12
State desulfurizing tower 9 tower wall outer lower portion and be provided with the second connecting pipe 14 to middle and upper part, described
Second connecting pipe 14 is provided with the second acid-proof pump 15；Cold with flue gas in described electrostatic precipitator 7
But it is provided with booster fan 16 between device 8；Described cold and hot water coke slurry pipeline is divided into cold water pipes 17 He
Hot water pipeline 18, is provided with water pump 11 on described hot water pipeline 18；Described cold and hot water coke slurry pipeline
One end is located at described gas cooler 8 top.Overall structure setting of the present invention is reasonable, using cold
Hot water exchanges pipeline and connects steam air heater and gas cooler, carries out heat exchange, pre- using air
Hot device, the burner hearth that hot-air sends into boiler is combustion-supporting, improves combustion position, using electrostatic precipitator,
Carry out flue gas ash removal, using gas cooler, reduce flue-gas temperature, Mist heat recovering, cigarette
After supercooling, temperature drops to optimal desulfurization temperature and is passed through desulfurizing tower gas, and not only desulfuration efficiency is high,
And evaporated water is greatly reduced, using the first acid-proof pump and the second acid-proof pump, not only effectively carry
The reclamation rate of peracid, and the usage safety performance of Wet chimney can be improved, the system can carry
High boiler efficiency, energy-conserving and environment-protective, meet actual operation requirements.
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 (4)
1. a kind of residual heat from boiler fume recovery system it is characterised in that：It includes boiler (1),
Outside described boiler (1) furnace wall, middle and upper part is provided with air channel (2), in described boiler (1) stove
Wall outer upper is provided with flue (3), is provided with steam air heater (4) on described air channel (2),
It is provided with pressure fan (5), the wind above described steam air heater (4) below described steam air heater (4)
Road (2) and flue (3) are provided with air preheater (6), the outlet of described flue (3)
It is connected with electrostatic precipitator (7) side, described electrostatic precipitator (7) opposite side is cold with flue gas
But device (8) side is connected, described gas cooler (8) opposite side and desulfurizing tower (9)
Side lower part is connected, another upper lateral part of described desulfurizing tower (9) and Wet chimney (10) side lower part
It is connected, be provided with cold and hot water coke slurry pipe between described steam air heater (4) and gas cooler (8)
Road, is provided with water pump (11), in described Wet chimney (10) on described cold and hot water coke slurry pipeline
It is provided with the first connecting pipe (12), described first even between bottom and desulfurizing tower (9) bottom
Adapter road (12) is provided with the first acid-proof pump (13), outside described desulfurizing tower (9) tower wall
It is provided with the second connecting pipe (14), in described second connecting pipe (14) between bottom to middle and upper part
It is provided with the second acid-proof pump (15).
2. residual heat from boiler fume recovery system according to claim 1 it is characterised in that：
It is provided with booster fan (16) between described electrostatic precipitator (7) and gas cooler (8).
3. residual heat from boiler fume recovery system according to claim 1 it is characterised in that：
Described cold and hot water coke slurry pipeline is divided into cold water pipes (17) and hot water pipeline (18), described
Hot water pipeline (18) is provided with water pump (11).
4. residual heat from boiler fume recovery system according to claim 1 it is characterised in that：
Described cold and hot water coke slurry pipeline one end is located at described gas cooler (8) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485550.1A CN106439896A (en) | 2015-08-10 | 2015-08-10 | Boiler smoke waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510485550.1A CN106439896A (en) | 2015-08-10 | 2015-08-10 | Boiler smoke waste heat recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106439896A true CN106439896A (en) | 2017-02-22 |
Family
ID=58093248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510485550.1A Pending CN106439896A (en) | 2015-08-10 | 2015-08-10 | Boiler smoke waste heat recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106439896A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001239129A (en) * | 2000-03-03 | 2001-09-04 | Babcock Hitachi Kk | Exhaust gas treatment apparatus and operation method therefor |
| CN201636884U (en) * | 2009-09-27 | 2010-11-17 | 西安交通大学 | Deep cooling and waste heat recovery device for boiler smoke gas |
| CN202432505U (en) * | 2012-01-29 | 2012-09-12 | 河北省电力勘测设计研究院 | Flue gas waste heat recovery utilization system of coal burning boiler |
| 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 |
| CN204901818U (en) * | 2015-08-10 | 2015-12-23 | 江苏海德节能科技有限公司 | Waste heat of boiler flue gas recovery system |
-
2015
- 2015-08-10 CN CN201510485550.1A patent/CN106439896A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001239129A (en) * | 2000-03-03 | 2001-09-04 | Babcock Hitachi Kk | Exhaust gas treatment apparatus and operation method therefor |
| CN201636884U (en) * | 2009-09-27 | 2010-11-17 | 西安交通大学 | Deep cooling and waste heat recovery device for boiler smoke gas |
| CN202432505U (en) * | 2012-01-29 | 2012-09-12 | 河北省电力勘测设计研究院 | Flue gas waste heat recovery utilization system of coal burning boiler |
| 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 |
| CN204901818U (en) * | 2015-08-10 | 2015-12-23 | 江苏海德节能科技有限公司 | Waste heat of boiler flue gas recovery system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |