CN208253630U - A kind of eliminating white smoke system using flue spray and hot wind mixing - Google Patents
A kind of eliminating white smoke system using flue spray and hot wind mixing Download PDFInfo
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- CN208253630U CN208253630U CN201820822487.5U CN201820822487U CN208253630U CN 208253630 U CN208253630 U CN 208253630U CN 201820822487 U CN201820822487 U CN 201820822487U CN 208253630 U CN208253630 U CN 208253630U
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- air heater
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- flue
- heat absorption
- chimney
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Abstract
The utility model discloses a kind of eliminating white smoke systems using flue spray and hot wind mixing, the heat release side outlet of air preheater is connected with the entrance of wet desulfuration tower, the heat absorption side outlet of gas cooler is connected with the heat release side entrance of Cryogenic air heater, the heat release side outlet of Cryogenic air heater is connected with the heat absorption side entrance of gas cooler, and the heat absorption side outlet of Cryogenic air heater is connected with the heat absorption side entrance of high-temperature air heater；The exhanst gas outlet of wet desulfuration tower is connected with the heat absorption side outlet of high-temperature air heater by the entrance of pipeline and Guan Houyu chimney after flue spray equipment and wet scrubber；Or the exhanst gas outlet of wet desulfuration tower is connected with the heat absorption side outlet of high-temperature air heater by the entrance of pipeline and Guan Houyu chimney after flue demister and chimney demister, the smoke moisture of chimney entrance is effectively reduced in the system, improve the exhaust gas temperature of chimney, short construction period, cost of investment are low.
Description
Technical field
The utility model belongs to flue gas and disappears white technical field, is related to a kind of eliminating white smoke using flue spray and hot wind mixing
System.
Background technique
It is severe with sending out the day of Environmental Protection Situation, at the thermal power plant of 90% or more the country and quite a few industrial smoke
Reason system has installed wet desulfurization system additional, and the saturation wet flue gas of generally 50 DEG C or so of wet desulfurization system outlet passes through chimney
Discharge can generate apparent white plume phenomenon.
In recent years, the provinces and cities such as Shanghai, Zhejiang, Hebei, Tianjin, Handan, Tangshan have put into effect flue gas in succession and have disappeared white policy document,
It is required that carrying out the white processing that disappears to the flue gas using wet desulfurization system, main process includes flue gas reheating, flue gas condensing
And flue gas condensing reheats.It is that chimney inlet flue gas is warming up to 80 DEG C or so from 50 DEG C or so that flue gas, which reheats technology, with
Mitigate white plume phenomenon.Flue gas condensing is that chimney entrance flue gas temperature is cooled to 45 DEG C or so from 50 DEG C, is reduced in flue gas
Slurries droplet, soluble salt and pollutant load, further to flue gas carry out advanced treating, moreover it is possible to reduce the water consumption of power plant,
But it is unobvious to the effect for eliminating white plume.Flue gas condensing reheating is first to condense chimney inlet flue gas to 45 DEG C, is reheated
To 60-65 DEG C, that is, the pollutant load in flue gas is reduced, reduces power plant water amount, and significantly reduce white plume phenomenon.
Wherein flue gas condensing reheating technical application is the most extensive, and wherein flue gas condensing technology is divided into slurries condensation technology
With desulfurizing tower rear pass condensation technology.Slurries condensation technology is respectively to install one additional on desulfurizing tower top layer and time top layer slurries spray tube
A plate heat exchanger reduces slurry temperature using cooling-tower circulating water, to reduce desulfurizing tower exit gas temperature.After desulfurizing tower
Flue condensation technology is to install flue gas condenser additional in flue after desulfurizing tower, is directly cooled down using recirculated water to flue gas,
The vapor in flue gas is condensed, white plume is slowed down, reduces pollutant emission.Thermal technology mainly installs smoke re-heater additional again,
Smoke re-heater is installed additional in chimney entrance, using hot water or the neat stress of steam heating chimney entrance, eliminates white plume.
Install smoke re-heater additional, generally by installing high-grade metallic recuperator additional in existing Anti-corrosive smoke canal, however
Construction time is long, and investment is big, and system is more complex.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of using flue spray and heat
The smoke moisture of chimney entrance is effectively reduced in the eliminating white smoke system of wind mixing, the system, improves the exhaust gas temperature of chimney, system letter
List, short construction period, cost of investment are low.
In order to achieve the above objectives, the eliminating white smoke system described in the utility model using flue spray and hot wind mixing includes
Air preheater, gas cooler, dry collector, wet desulfuration tower, Cryogenic air heater, high-temperature air heater and cigarette
Chimney；
The successively cold side through gas cooler and dry collector and the wet desulphurization of the heat release side outlet of air preheater
The entrance of tower is connected, and the heat absorption side outlet of gas cooler is connected with the heat release side entrance of Cryogenic air heater, low temperature
The heat release side outlet of air heater is connected with the heat absorption side entrance of gas cooler, and the heat absorbing side of Cryogenic air heater goes out
Mouth is connected with the heat absorption side entrance of high-temperature air heater；
The exhanst gas outlet of wet desulfuration tower after flue spray equipment and wet scrubber with the suction of high-temperature air heater
Hot side outlet is connected by the entrance of pipeline and Guan Houyu chimney；Or the exhanst gas outlet of wet desulfuration tower is through flue demister
And it is connected with the heat absorption side outlet of high-temperature air heater by the entrance of pipeline and Guan Houyu chimney after chimney demister.
The heat absorption side outlet of Cryogenic air heater is connected through circulating pump with the heat release side entrance of gas cooler.
Air-introduced machine is provided between dry collector and wet desulfuration tower.
The heat absorbing side inlet of Cryogenic air heater is provided with air blower.
The heat release side entrance of high-temperature air heater is communicated with auxiliary steam input channel, the heat release of high-temperature air heater
Side outlet is communicated with hydrophobic output channel.
The flue spray equipment includes coolant intake pipe road and is set to several in wet desulfuration tower back-end ductwork
Nozzle, wherein coolant intake pipe road is connected with the entrance of each nozzle.
The utility model has the following beneficial effects:
The eliminating white smoke system described in the utility model mixed using flue spray and hot wind utilizes cigarette when specific operation
Road spray equipment carries out cooling condensation to the flue gas that wet desulfuration tower exports, and to remove the partial moisture in flue gas, utilizes high temperature
The hot-air of air heater output mix with flue gas, and the flue-gas temperature of raising chimney entrance, realization flue gas disappears white purpose,
In, flue spray equipment can use river, seawater or recirculated cooling water and change as cooling water and flue gas progress contact
Heat can significantly improve heat exchange efficiency, in rebuilding construction compared to wall-type heat exchange, it is only necessary to which installing nozzle additional in flue is
Can, construction volume is few, risk is small, and cost of investment is low.Meanwhile being mixed using hot-air with flue gas, it can further dilute in flue gas
Water vapour pressure, while improving flue-gas temperature, reach the white effect that preferably disappears.Air heater is divided into Cryogenic air heater
And high-temperature air heater, the working medium in Cryogenic air heater is heated using the hot water of gas cooler, to reduce coal
Consumption, high-temperature air heater is heated using auxiliary steam, to improve air themperature, while reducing the amount of mixing air.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment one；
Fig. 2 is the structural schematic diagram of embodiment one.
Wherein, 1 it is air preheater, 2 be gas cooler, 3 be dry collector, 4 be air-introduced machine, 5 is wet desulphurization
Tower, 6 be flue spray equipment, 7 be wet scrubber, 8 be chimney, 9 be high-temperature air heater, 10 be Cryogenic air heating
Device, 11 be air blower, 12 be circulating pump, 13 be flue demister, 14 be chimney demister.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Embodiment one
With reference to Fig. 1, the eliminating white smoke system described in the utility model using flue spray and hot wind mixing includes that air is pre-
Hot device 1, gas cooler 2, dry collector 3, wet desulfuration tower 5, Cryogenic air heater 10, high-temperature air heater 9 and
Chimney 8；Cold side and dry collector 3 and wet desulphurization of the heat release side outlet of air preheater 1 successively through gas cooler 2
The entrance of tower 5 is connected, and the heat absorption side outlet of gas cooler 2 is connected with the heat release side entrance of Cryogenic air heater 10,
The heat release side outlet of Cryogenic air heater 10 is connected with the heat absorption side entrance of gas cooler 2, Cryogenic air heater 10
Heat absorption side outlet be connected with the heat absorption side entrance of high-temperature air heater 9；The exhanst gas outlet of wet desulfuration tower 5 is sprayed through flue
With the heat absorption side outlet of high-temperature air heater 9 by pipeline and Guan Houyu chimney 8 enters after shower device 6 and wet scrubber 7
Mouth is connected.
The heat absorption side outlet of Cryogenic air heater 10 is connected through circulating pump 12 with the heat release side entrance of gas cooler 2
It is logical；Air-introduced machine 4 is provided between dry collector 3 and wet desulfuration tower 5；The heat absorbing side inlet of Cryogenic air heater 10 is set
It is equipped with air blower 11；The heat release side entrance of high-temperature air heater 9 is communicated with auxiliary steam input channel, high-temperature air heater
9 cold side outlet has hydrophobic output channel；The flue spray equipment 6 includes coolant intake pipe road and is set to wet
Several nozzles in 5 back-end ductwork of method desulfurizing tower, wherein coolant intake pipe road is connected with the entrance of each nozzle.
Embodiment two
With reference to Fig. 2, the difference between this embodiment and the first embodiment lies in: the exhanst gas outlet of wet desulfuration tower 5 is through flue demisting
Pass through pipeline and the entrance of Guan Houyu chimney 8 with the heat absorption side outlet of high-temperature air heater 9 after device 13 and chimney demister 14
It is connected.
The specific work process of the utility model are as follows:
Flue gas enters in gas cooler 2 through air preheater 1, so that flue-gas temperature is reduced to 90 DEG C or so, flue gas
The heat of release is by Cryogenic air heater 10 for heating air, and to reduce the coal consumption of unit, the flue gas after cooling is through dry
Enter in flue spray equipment 6 after formula deduster 3, air-introduced machine 4 and wet desulfuration tower 5, it is cold using river, seawater or circulation
But water carries out spraying cooling to flue gas, reduces water content and pollutant load in flue gas, after flue spray equipment 6, flue gas
In droplet content increase, at this time after wet scrubber 7 or flue demister 13 and chimney demister 14, droplet content
It meets the requirements of the standard, the hot-air finally exported with high-temperature air heater 9 mixes, then is discharged through chimney 8, to reach raising cigarette
Temperature degree, the purpose for reducing flue gas moisture content, eliminating white plume.
Claims (6)
1. a kind of eliminating white smoke system using flue spray and hot wind mixing, which is characterized in that including air preheater (1), cigarette
Gas Cooler (2), dry collector (3), wet desulfuration tower (5), Cryogenic air heater (10), high-temperature air heater (9)
And chimney (8)；
Cold side and dry collector (3) and wet process of the heat release side outlet of air preheater (1) successively through gas cooler (2)
The entrance of desulfurizing tower (5) is connected, and the heat absorption side outlet and the cold side of Cryogenic air heater (10) of gas cooler (2) enter
Mouth is connected, and the heat release side outlet of Cryogenic air heater (10) is connected with the heat absorption side entrance of gas cooler (2), low temperature
The heat absorption side outlet of air heater (10) is connected with the heat absorption side entrance of high-temperature air heater (9)；
The exhanst gas outlet of wet desulfuration tower (5) is after flue spray equipment (6) and wet scrubber (7) and high-temperature air heater
(9) heat absorption side outlet is connected by the entrance of pipeline and Guan Houyu chimney (8)；Or the flue gas of wet desulfuration tower (5) goes out
Mouth passes through pipeline simultaneously with the heat absorption side outlet of high-temperature air heater (9) after flue demister (13) and chimney demister (14)
The entrance of Guan Houyu chimney (8) is connected.
2. the eliminating white smoke system according to claim 1 using flue spray and hot wind mixing, which is characterized in that low temperature is empty
The heat absorption side outlet of hot-air heater (10) is connected through circulating pump (12) with the heat release side entrance of gas cooler (2).
3. the eliminating white smoke system according to claim 1 using flue spray and hot wind mixing, which is characterized in that dry type is removed
Air-introduced machine (4) are provided between dirt device (3) and wet desulfuration tower (5).
4. the eliminating white smoke system according to claim 1 using flue spray and hot wind mixing, which is characterized in that low temperature is empty
The heat absorbing side inlet of hot-air heater (10) is provided with air blower (11).
5. the eliminating white smoke system according to claim 1 using flue spray and hot wind mixing, which is characterized in that high temperature is empty
The heat release side entrance of hot-air heater (9) is communicated with auxiliary steam input channel, and the heat release side outlet of high-temperature air heater (9) connects
It is connected with hydrophobic output channel.
6. the eliminating white smoke system according to claim 1 using flue spray and hot wind mixing, which is characterized in that the cigarette
Road spray equipment (6) includes coolant intake pipe road and several nozzles for being set in wet desulfuration tower (5) back-end ductwork,
In, coolant intake pipe road is connected with the entrance of each nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820822487.5U CN208253630U (en) | 2018-05-30 | 2018-05-30 | A kind of eliminating white smoke system using flue spray and hot wind mixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820822487.5U CN208253630U (en) | 2018-05-30 | 2018-05-30 | A kind of eliminating white smoke system using flue spray and hot wind mixing |
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| Publication Number | Publication Date |
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| CN208253630U true CN208253630U (en) | 2018-12-18 |
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| CN201820822487.5U Active CN208253630U (en) | 2018-05-30 | 2018-05-30 | A kind of eliminating white smoke system using flue spray and hot wind mixing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585885A (en) * | 2019-10-24 | 2019-12-20 | 陕西正本环境工程有限公司 | White smoke eliminating-flue gas deacidification integrated treatment system and treatment method thereof |
| CN110833740A (en) * | 2019-12-05 | 2020-02-25 | 安徽顺达环保科技股份有限公司 | Wet electric dust removal of industrial kiln is white device in coordination |
-
2018
- 2018-05-30 CN CN201820822487.5U patent/CN208253630U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110585885A (en) * | 2019-10-24 | 2019-12-20 | 陕西正本环境工程有限公司 | White smoke eliminating-flue gas deacidification integrated treatment system and treatment method thereof |
| CN110833740A (en) * | 2019-12-05 | 2020-02-25 | 安徽顺达环保科技股份有限公司 | Wet electric dust removal of industrial kiln is white device in coordination |
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