CN206001498U - Go white haze device and power plant stack gas processing system for power plant - Google Patents

Go white haze device and power plant stack gas processing system for power plant Download PDF

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Publication number
CN206001498U
CN206001498U CN201620815813.0U CN201620815813U CN206001498U CN 206001498 U CN206001498 U CN 206001498U CN 201620815813 U CN201620815813 U CN 201620815813U CN 206001498 U CN206001498 U CN 206001498U
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China
Prior art keywords
air
heat exchanger
flue gas
gas
power plant
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CN201620815813.0U
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Inventor
刘玉坤
方杨
李新
李磊
邵哲如
蔡旭
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Everbright Envirotech China Ltd
Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd
Everbright Environmental Protection Technology Equipment Changzhou Co Ltd
Everbright Environmental Protection China Co Ltd
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Everbright Envirotech China Ltd
Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd
Everbright Environmental Protection Technology Equipment Changzhou Co Ltd
Everbright Environmental Protection China Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

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Abstract

This utility model provide a kind of go white haze device and power plant stack gas processing system for power plant, the white haze device that goes that this is used for power plant includes:First Heat Exchanger, described First Heat Exchanger is configured to make the flue gas that the described burning that generates electricity produces carry out heat exchange with air, separates out moisture to reduce flue-gas temperature, and rises high air temperature;Second heat exchanger, described second heat exchanger be configured to make carry out heat exchange in described First Heat Exchanger after air and flue gas carry out heat exchange again, to raise flue-gas temperature, it is expelled in air by described chimney through the flue gas of described second heat exchanger, it is directed into the upper area in described cooling tower through the air of described second heat exchanger, be expelled in air with after mixing with the saturated air producing in described cooling tower.White haze is exported according to go white haze device and the simple and reliable removal chimney simultaneously of power plant stack gas processing system and the cooling tower for power plant of the present utility model, improves economic benefit and the environmental benefit of power plant.

Description

Go white haze device and power plant stack gas processing system for power plant
Technical field
This utility model is related to power plant stack gas treatment technology, fills in particular to a kind of white haze of going for power plant Put and power plant stack gas processing system.
Background technology
In the power plant such as garbage incinerating power plant and coal-fired power plant, chimney and cooling tower are conventional devices, and chimney is used In the flue gas producing in burning process is entered in air, and for the ease of flue gas expanding, chimney typically require reach certain Highly.And cooling tower is with the recirculated water carrying waste heat is carried out heat exchange in Ta Nei with air, give sky the heat transmission of water Gas simultaneously spills into air, and recirculated water is lowered the temperature.
Often can be appreciated that chimney breast emits white cigarette and cooling tower outlet emits the phenomenon of white haze at present, for chimney, It is because in the flue gas discharged containing a large amount of vapor, flue gas enters after air from chimney, and temperature reduces, and vapor condenses to the cold Become droplet, form white cigarette (being mist in fact), white cigarette phenomenon becomes apparent from therefore when temperature is relatively low.For cooling tower, It is to reach saturation because air absorbs moisture after cooling tower, after flowing out from cooling tower, precipitation moisture of will lowering the temperature, Produce white haze.The white haze of chimney and cooling tower outlet have impact on city look and feel, causes visual pollution, house refuse of especially adjusting the distance The near resident living area in the power plants such as burning electricity generation factory, this visual pollution impact is bigger, and this visual pollution can affect Visibility etc., brings certain danger to neighbouring resident.
Currently in order to preventing the white haze phenomenon of chimney and cooling tower, chimney and cooling tower being installed additional go white haze to fill respectively Put.For chimney, go white haze device ultimate principle to be to carry out heat exchange by making flue gas and air in de- white device, make cigarette Water vapor condensation in gas separates out, and the air after heat exchange is delivered in chimney using aerator and flue gas together drains in air, from And mitigate white cigarette phenomenon.For cooling tower, go white haze device ultimate principle that air is divided into two strands, one enters from tower bottom Enter, another stock is entered from tower top and mixed with saturated air, makes saturated air be changed into nonsaturated air, thus reduce air going out The white haze phenomenon being formed after tower.
However, above-mentioned remove white haze device, suffer from the drawback that:1) because the air after heat exchange enters air through chimney, lead Cause this partial heat not to be used effectively, waste heat energy;2), after flue gas cool-down, (chimney height is relatively for the draft reduction of chimney Height, the low flue gas of temperature is unfavorable for discharging), the smooth discharge of impact flue gas;3) air is delivered to after chimney through aerator, easily causes Air pours in down a chimney so that flue gas row does not go out;4) set up high-efficiency fin pipe in cooling tower from the air needs that tower top enters to change Hot device, is heated to air using circulating water afterheat, leads to cost of investment to be significantly increased;5) chimney and cooling tower go white haze Device needs to install additional respectively, increased entirety investment and the cost in power plant.
Utility model content
Utility model content partly in introduce a series of concept of reduced forms, this will be in specific embodiment part Middle further description.Utility model content part of the present utility model is not meant to attempt to limit claimed The key feature of technical scheme and essential features, more do not mean that the guarantor attempting to determine technical scheme required for protection Shield scope.
In order to solve the above problems at least in part, the utility model discloses a kind of white haze of going for power plant fills Put, it includes:First Heat Exchanger, described First Heat Exchanger is configured to make the flue gas that the described burning that generates electricity produces carry out heat with air Exchange, separate out moisture to reduce flue-gas temperature, and rise high air temperature;Second heat exchanger, described second heat exchanger is configured to make Air after carrying out heat exchange in described First Heat Exchanger and flue gas carry out heat exchange again, to raise flue-gas temperature, pass through The flue gas of described second heat exchanger is expelled in air by described chimney, is directed into institute through the air of described second heat exchanger State the upper area in cooling tower, be expelled in air with after mixing with the saturated air producing in described cooling tower.
Alternatively, described First Heat Exchanger is configured with the first smoke inlet and connect with described first smoke inlet One exhanst gas outlet, the first air intake and the first air outlet slit connecting with described first air intake, described generating is burned The flue gas producing enters in described First Heat Exchanger via stating the first smoke inlet, and in described First Heat Exchanger and via institute State the air heat-exchange precipitation moisture that the first air intake enters, the flue gas that temperature reduces is discharged via described first exhanst gas outlet, The air that temperature raises is discharged via described first air outlet slit;
Described second heat exchanger is configured with the second smoke inlet and the second flue gas connecting with described second smoke inlet Outlet, second air intake and the second air outlet slit being connected with described second air intake, are gone out via described first flue gas The flue gas that mouth is discharged and the air discharged via described first air outlet slit pass through described second smoke inlet and second respectively Air intake enters in described second heat exchanger, and carries out heat exchange in described second heat exchanger,
The flue gas that temperature raises imports in described chimney via described second exhanst gas outlet, and the air that temperature reduces is via institute State the upper area that the second air outlet slit is directed in described cooling tower.
Alternatively it is characterised in that described First Heat Exchanger is additionally provided with condensation-water drain, for discharging described flue gas analysis The moisture going out.
Alternatively, described condensation-water drain is connected to water treatment facilities by pipeline.
Alternatively, also include the pipeline for connecting described first exhanst gas outlet and the second smoke inlet, and for even Lead to the pipeline of described first air outlet slit and second air intake.
In order to solve the above problems at least in part, the invention also discloses a kind of power plant stack gas processing system, For processing to the flue gas that burning electricity generation produces, to reduce environmental pollution, it includes:Extracting tower, described deacidification tower configuration It is to connect with the described boiler for burning electricity generation, deacidification process is carried out with the flue gas that burning electricity generation is produced, remove in flue gas Sour gas;Dust arrester, described dust arrester is configured to connect with described extracting tower, with to the cigarette processing through extracting tower Gas carries out dust removal process, removes the particulate matter in described flue gas;First Heat Exchanger, described First Heat Exchanger is configured to make through institute The flue gas stating dust arrester process carries out heat exchange with air, to reduce flue-gas temperature, separates out moisture, and rises high air temperature; Second heat exchanger, described second heat exchanger configuration bit is so that the flue gas after described First Heat Exchanger heat exchange and air is entered again Row heat exchange, to raise flue-gas temperature, is discharged by chimney via the flue gas that described second heat exchanger is discharged, via described second The flue gas that heat exchanger is discharged is discharged by chimney, is directed in power generating plant cooling tower via the air that described second heat exchanger is discharged Upper area, with cooling tower produce saturated air mix after be expelled in air.
Alternatively, described First Heat Exchanger be configured with the first smoke inlet connecting with described dust arrester and with described First exhanst gas outlet of the first smoke inlet connection, the first air intake and the first sky connecting with described first air intake Gas exports, and enters in described First Heat Exchanger via stating the first smoke inlet through the flue gas that described dust arrester is processed, and Moisture is separated out with via the air heat-exchange that described first air intake enters, the flue gas warp that temperature reduces in described First Heat Exchanger Discharged by described first exhanst gas outlet, the air that temperature raises is discharged via described first air outlet slit;
Described second heat exchanger is configured with the second smoke inlet and the second flue gas connecting with described second smoke inlet Outlet, second air intake and the second air outlet slit being connected with described second air intake, are gone out via described first flue gas The flue gas that mouth is discharged and the air discharged via described first air outlet slit pass through described second smoke inlet and second respectively Air intake enters in described second heat exchanger, and carries out heat exchange in described second heat exchanger,
The flue gas that temperature raises imports in described chimney via described second exhanst gas outlet, and the air that temperature reduces is via institute State the upper area that the second air outlet slit is directed in described cooling tower.
Alternatively, described First Heat Exchanger is additionally provided with the condensation-water drain for discharging the moisture that described flue gas separates out.
Alternatively, described condensation-water drain is connected to water treatment facilities by pipeline.
Go white haze device and power plant stack gas processing system according to of the present utility model for power plant, on the one hand adopt With two heat exchangers, first pass through the temperature that First Heat Exchanger reduces flue gas, and saturation moisture therein is condensed, thus reducing cigarette Gas moisture content, then raises the temperature of flue gas it is ensured that stack draught again by the second heat exchanger, so that flue gas is normally discharged, And condensed water can reduce power plant's water consumption as power plant's supplement water after treatment;On the other hand, empty after heat exchange twice The temperature of gas raises, and is sent to the upper area in pot cooling tower, and the saturated air as mixing hot-air and wet section of outlet enters Row mixing, makes air reach unsaturation state, eliminates the white haze of cooling tower outlet.This device eliminates chimney and cooling tower simultaneously The white haze of outlet, improves economy of power plant benefit and environmental benefit.
Further, remove white haze device due to make use of waste heat according to of the present utility model for power plant, using general Logical heat exchanger can make atmosphere temperature rising arrive preferable temperature, and efficiency of energy utilization improves, and due to need not arrange again efficiently Finned tube exchanger, simplifies cooling tower structure, reduces cost of investment.
Further, since not mixed air and flue gas after First Heat Exchanger and the second heat exchanger, do not affect The flue gas system of whole boiler, no matter so taking off whether white device puts into operation, all do not affect flue gas smoothly enters air.
Go white haze device and power plant stack gas processing system simple and reliable according to of the present utility model for power plant While eliminate chimney and cooling tower outlet white haze, improve the benefit of power plant simultaneously, have obvious economic benefit and Environmental benefit.
Brief description
Drawings below of the present utility model is used for understanding this utility model in this as a part of the present utility model.Accompanying drawing In show embodiment of the present utility model and its description, for explaining principle of the present utility model.
In accompanying drawing:
Fig. 1 illustrates the structural representation of the power plant stack gas processing system according to this utility model one embodiment;
Fig. 2 illustrates the structural representation of the demisting cooling tower system according to this utility model one embodiment.
Description of reference numerals:
1 furnace grate
2 extracting towers
3 sack cleaners
4 First Heat Exchangers
5 second heat exchangers
6 chimneys
7 water treatment facilities
8 dry and wet cooling towers
9 circulation water collecting devices
80 tower bodies
81 Cryogenic air air inlets
82 circulation water feeders
83 hot air inlets
84 blenders
85 gas outlets
9 circulation water collecting devices
100 power plant stack gas processing systems
Specific embodiment
In the following description, give a large amount of concrete details to provide, this utility model more thoroughly to be managed Solution.It will be apparent, however, to one skilled in the art that this utility model embodiment can be one or more These details and be carried out.In other examples, in order to avoid obscuring with this utility model embodiment, for ability Domain some technical characteristics known are not described.
In order to thoroughly understand this utility model embodiment, detailed structure will be proposed in following description.Obviously, this reality It is not limited to the specific details that those skilled in the art is familiar with the execution of new embodiment.Of the present utility model preferable Embodiment is described in detail as follows, but in addition to these describe in detail, this utility model can also have other embodiment.
In order to thoroughly understand this utility model, in following description, detailed structure and step will be proposed, to explain The utility model proposes technical scheme.Preferred embodiment of the present utility model is described in detail as follows, but except these are detailed Description is outer, and this utility model can also have other embodiment.
With reference to Fig. 1, the power plant stack gas processing system of this utility model one embodiment is described in detail.
The flue gas that the power plant stack gas processing system that the present embodiment provides is used for burning electricity generation is produced is processed, to drop Low environment pollutes, and exemplarily, in the present embodiment, the flue gas that burning electricity generation produces enters in furnace grate 1, in furnace grate In 1, the waste heat using flue gas produces high-temperature vapour, promotes rotating turbine, makes electromotor produce electric energy, waste incineration simultaneously The flue gas producing in journey enters smoke processing system by flue, through by chimney 6 row after smoke processing system is processed Go out to air.
As shown in figure 1, the present embodiment provide power plant stack gas processing system 100 include extracting tower 2, sack cleaner 3, First Heat Exchanger 4 and the second heat exchanger 5.
Extracting tower 2 is connected with the smoke exhaust system of furnace grate 1, and the flue gas for producing to furnace grate 1 takes off Acid treatment, i.e. the hydrogen chloride in removing flue gas, the sour gas such as sulfur dioxide.Extracting tower 2 can be using commonly used in the art each Plant deacidifying device, for example, semidry method extracting tower, dry-process deacidification system, circulating fluidized bed dry deacidification reaction tower etc., this practicality is new Type does not limit to this.
Sack cleaner 3 is connected with extracting tower 2, and flue gas, after extracting tower 2 process, enters sack cleaner 3, in cloth bag Carry out dust removal process, the particulate matter such as flying dust in removal flue gas in cleaner unit 3.Sack cleaner 3 is a kind of sack cleaner, leans on Filter bag trapping, removing particulate matter, mainly by upper box body, middle part casing, lower part box (ash bucket), soot cleaning system and ash exhauster On part composition structure, it adopts structure commonly used in the art, and here does not limit.
First Heat Exchanger 4 is used for carrying out heat exchange process to flue gas, to reduce flue-gas temperature, thus separating out moisture.First changes Hot device 4 is configured with two gas flow pipe roads, and one of is flue gas flow pipe, including:First smoke inlet (not shown), For connecting with the gas outlet of sack cleaner 3, the flue gas through sack cleaner 3 dedusting is imported in First Heat Exchanger 4; First flue gas pipeline, for the flue gas that circulates, to carry out heat exchange;First exhanst gas outlet, changes through First Heat Exchanger 4 for discharging The flue gas that the temperature of heat reduces.Another is air circulation pipeline, including:First air intake, for leading the air of room temperature Enter in First Heat Exchanger 4;First air pipe line, it contacts/closes on described first flue gas pipeline, is used for making air and fume pipe The flue gas on road carries out heat exchange, thus reducing flue-gas temperature, rises high air temperature;First air outlet slit, for discharging through the The air that the temperature of one heat exchanger 4 heat exchange raises.
Exemplarily, in the present embodiment, the first heat-exchanger rig 4 adopts vertical cylindrical structure, and it is internally formed cavity, and As the first flue gas pipeline.Flue gas enters from top, and the internal cavity along the first heat-exchanger rig 4 flows downward, then the bottom of from Portion discharges.It is provided with the first air pipe line in the internal cavity of the first heat-exchanger rig 4, with ventilating air.First air pipe line For spiraling or roundabout can be folded with the first heat-exchanger rig 4 and connect with the first air intake and the first air outlet slit Pipeline.After flue gas enters from first smoke inlet at top, the internal cavity along the first heat-exchanger rig 4 flows downward, simultaneously Carry out heat exchange with the air of the first air pipe line, to reduce temperature, thus separating out moisture, forming condensed water and falling, temperature drops Flue gas after low is discharged from the first exhanst gas outlet being arranged on the first heat-exchanger rig 4 bottom.
Further, it is additionally provided with condensed water collecting device and condensation-water drain in First Heat Exchanger 4, for discharging cigarette In gas, vapor separates out the condensed water that condensation is formed.In this embodiment, the condensed water discharged by First Heat Exchanger 4, by pipeline Being delivered to water treatment facilities 7, to carry out water process, and the supplement water as power plant, thus improving the utilization ratio of water, reducing Power plant water amount.
Second heat exchanger 5 is used for carrying out heat exchange process to flue gas, to raise flue-gas temperature, arranges from chimney 6 beneficial to flue gas Go out.Similar with First Heat Exchanger 4, the second heat exchanger 5 is also configured with two gas flow pipe roads.One of is flue gas pipeline, Including:Second smoke inlet, it is connected with the first exhanst gas outlet by pipeline, by the flue gas through First Heat Exchanger 4 heat exchange It is directed in the second heat exchanger 5;Second flue gas pipeline, for circulating in the second heat exchanger 5 for flue gas, and carries out heat exchange; Second exhanst gas outlet, for will after the second heat exchanger 5 heat exchange, temperature raise flue gas discharge, and by pipeline extremely In chimney 6, thus being expelled in air.Another is air circulation pipeline, including:Second air intake, its pass through pipeline with First air outlet slit connection, for importing in the second heat exchanger 5 through the air that First Heat Exchanger 4 heat-exchange temperature raises;The Two air pipe lines, for circulating in the second heat exchanger 5 for air, and carry out heat exchange with flue gas, to raise the temperature of flue gas; Second air outlet slit, the air for discharging through the second heat exchanger heat exchange is discharged, and due to through the second heat exchanger heat exchange Air themperature remain above room temperature, therefore in the present embodiment, through second air outlet slit discharge air pass through pipeline extremely Upper area in demisting cooling tower 8, is mixed with the saturated air of wet section of outlet as mixing hot-air, so that air is reached and do not satisfy And state, eliminate the white haze of demisting cooling tower 8 outlet.
Exemplarily, in the present embodiment, the second heat exchanger 5 adopts vertical cylindrical structure, and it is internally formed cavity, is used in combination Make the second flue gas pipeline, flue gas enters from bottom, and flows up along cavity, then discharge from top.In the second heat exchanger 5 It is provided with the second air pipe line, with ventilating air in portion's cavity.Second air pipe line, for spiraling or roundabout can be folded with The pipeline connecting in second heat exchanger 5 and with second air intake and the second air outlet slit.When flue gas is from the second flue gas of bottom After entrance enters, the internal cavity along the second heat exchanger 5 flows up, and carries out heat friendship with the air of the second air pipe line simultaneously Change, with a liter high-temperature, the flue gas that temperature raises is discharged via the second exhanst gas outlet being arranged on the second heat exchanger 5 top, and leads to Cross chimney 6 to discharge.The air that temperature reduces is discharged via described second air outlet slit, and sends into the top in demisting cooling tower 8 Region, is mixed with the saturated air of wet section of outlet as mixing hot-air, makes air reach unsaturation state, eliminates and remove fog cooling The white haze of tower 8 outlet.
In an embodiment of the present utility model, when flue gas enters First Heat Exchanger 4, temperature is about 140~160 DEG C, example As for 150 DEG C, after heat exchange in First Heat Exchanger 4, temperature is reduced to 40~45 DEG C, in the process more than 70% in flue gas Water vapour be condensed precipitation, as the supplement water of power plant after processing subsequently into water treatment facilities 7.Flue gas changes by first After hot device 4 is processed, the moisture content of flue gas substantially reduces, and therefore finally will substantially reduce or mitigate white cigarette when chimney 6 is discharged existing As.Flue gas is discharged in First Heat Exchanger 4 after moisture enters the second heat exchanger 5, with hot-air heat exchange and is warming up to 95~100 DEG C, Subsequently into chimney 6.Temperature after First Heat Exchanger 4 for the air is 105 DEG C~110 DEG C, temperature liter after the second heat exchanger 5 To 50 DEG C~55 DEG C, it is then fed into the upper area in demisting cooling tower 8, empty with the saturation of wet section of outlet as mixing hot-air Gas mixes, and makes air reach unsaturation state, eliminates the white haze of demisting cooling tower 8 outlet.
In order to more fully understand this utility model, go removal principle enter with reference to Fig. 2 to the special structure of cooling and in vain Row more detailed description.
As shown in figure 1, the demisting cooling tower 8 that the present embodiment provides includes tower body 80, Cryogenic air air inlet 81, recirculated water Feedway 82, hot air inlet 83, blender 84, gas outlet 85, circulation water collecting device 9.
Wherein, tower body 80 is cylindrical in shape structure, and it can be made with various materials, the material such as such as rustless steel.Inside tower body 80 Form airtight cavity, this cavity 80 is divided into heat transfer zone and mixed zone.Heat transfer zone is arranged on described cavity bottom, is used for carrying out heat friendship Change, produce saturated air.Mixed zone is arranged on cavity top, for mixing dry and wet air.
At the lower end position of heat transfer zone, such as, on the side wall of the lower end tower body 80 of heat transfer zone, it is provided with Cryogenic air air inlet Mouth 81, for Cryogenic air in surrounding is imported in heat transfer zone, and bottom-up flowing.Upper area in heat transfer zone Setting circulation water feeder 82, for described recirculated water imports the upper area of described heat transfer zone, and makes described recirculated water Fall from top and carry out heat exchange with the air of bottom-up flowing, to reduce circulating water temperature.Exemplarily, in the present embodiment In, circulation water feeder 82 includes circulating water pipe and spray unit.Circulating water pipe is connected with the circulation of power plant, is used for The recirculated water carrying waste heat is imported and refers to spray unit.Spray unit is used for making recirculated water from up to down spray, thus with And the air of upper flowing, heat exchange is carried out by contact heat-exchanging or evaporation and heat-exchange, to reduce circulating water temperature, makes from lower end simultaneously The Cryogenic air that Cryogenic air air inlet 81 enters heats up and absorbs moisture and reaches saturation.
It is provided with hot air inlet 83 and blender 84 in mixed zone.Wherein hot air inlet 83 is arranged on mixing On the side wall of area both sides, blender 84 is arranged on mixed zone central region.In the present embodiment, hot-air is through the second heat exchanger Air after 5, its temperature is still higher, can serve as mixing hot-air.In the present embodiment, the second heat exchanger 5 is arranged on tower Outside body 80, and due to make use of waste heat, the therefore second heat exchanger 5 can make atmosphere temperature rising arrive reason using ordinary heat exchanger The temperature thought, efficiency of energy utilization improves.When air is after the second heat exchanger 5 heating, hot-air is directed into by pipeline and enters QI KOU 83, subsequently in mixed zone.
Exemplarily, in the present embodiment, blender 84 is made up of multiple base plates and corrugated plating, and described base plate is fixed on tower On the roof of body, described corrugated plating is fixed on described base plate, and described base plate and corrugated plating surround hollow structure, and described It is formed with multiple inlet channels, the hot-air (doing) entering by hot air inlet 83 and from heat exchange between base plate and corrugated plating The saturation hot-air that area flows up into can be entered in the hollow structure of blender 84 by this inlet channel.It is appreciated that , the above is only an example of this utility model blender, it does not constitute restriction to this utility model, and this utility model can Can realize the mixer structure of dry and wet air mixing using other.
The hot-air (doing) being entered by hot air inlet 83 and the saturation hot-air flowing up into from heat transfer zone After entering mixed zone, entered in the hollow structure of blender 84 by the inlet channel of blender 84, and in inlet channel and Being mixed in this hollow structure, thus being changed into unsaturated air, being then expelled to air from gas outlet 85, due to discharging Air be not at saturation, thus can reduce or reduce the phenomenon that white haze occurs.
Gas outlet 85 is arranged on described tower body 80 top, for discharging described unsaturated air.Specifically, in described tower body On the position corresponding with described blender 84 of top.It is provided with blower fan in gas outlet 85, for driving the air of lower section from tower It is expelled in air inside body 80.
Circulation water collecting device 9 is located at below tower body 80, for the recirculated water falling on being collected from.That is, recirculated water blowing Pouring unit sprays after falling, and carries out heat exchange with Cryogenic air, later falls in circulation water collecting device 9, to circulate again Using.Exemplarily, circulation water collecting device 9 can be the structures such as cistern.
Go white haze device and power plant stack gas processing system according to of the present utility model for power plant, on the one hand adopt With two heat exchangers, first pass through the temperature that First Heat Exchanger reduces flue gas, and saturation moisture therein is condensed, thus reducing cigarette Gas moisture content, then raises the temperature of flue gas it is ensured that stack draught again by the second heat exchanger, so that flue gas is normally discharged, And condensed water can reduce power plant's water consumption as power plant's supplement water after treatment;On the other hand, empty after heat exchange twice The temperature of gas raises, and is sent to the upper area in pot cooling tower, and the saturated air as mixing hot-air and wet section of outlet enters Row mixing, makes air reach unsaturation state, eliminates the white haze of cooling tower outlet.This device eliminates chimney and cooling tower simultaneously The white haze of outlet, improves economy of power plant benefit and environmental benefit.
Further, remove white haze device due to make use of waste heat according to of the present utility model for power plant, using general Logical heat exchanger can make atmosphere temperature rising arrive preferable temperature, and efficiency of energy utilization improves, and due to need not arrange again efficiently Finned tube exchanger, simplifies cooling tower structure, reduces cost of investment.
Further, since not mixed air and flue gas after First Heat Exchanger and the second heat exchanger, do not affect The flue gas system of whole boiler, no matter so taking off whether white device puts into operation, all do not affect flue gas smoothly enters air.
Go white haze device and power plant stack gas processing system simple and reliable according to of the present utility model for power plant While eliminate chimney and cooling tower outlet white haze, improve the benefit of power plant simultaneously, have obvious economic benefit and Environmental benefit.
Unless otherwise defined, the technology of technology used herein and scientific terminology and technical field of the present utility model The implication that personnel are generally understood that is identical.Term used herein is intended merely to describe specific enforcement purpose it is not intended that limiting This utility model processed.Terms such as herein presented " settings " both can represent that a part was attached directly to another portion Part is it is also possible to represent that a part is attached to another part by middleware.The spy describing in one embodiment herein Levy and individually or with further feature can be applied to another embodiment in combination, unless this feature is in this another embodiment Inapplicable or be otherwise noted.
This utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is For citing and descriptive purpose, and it is not intended to this utility model is limited in described scope of embodiments.In addition ability Field technique personnel, it is understood that this utility model is not limited to above-described embodiment, go back according to teaching of the present utility model More kinds of variants and modifications can be made, these variants and modifications all fall within this utility model scope required for protection with Interior.Protection domain of the present utility model is defined by the appended claims and its equivalent scope.

Claims (9)

1. a kind of remove white haze device for power plant, for removing the white haze of power plant chimney and cooling tower outlet simultaneously, its It is characterised by, including:
First Heat Exchanger, described First Heat Exchanger is configured to make the flue gas that the described burning that generates electricity produces carry out heat exchange with air, Separate out moisture to reduce flue-gas temperature, and rise high air temperature;
Second heat exchanger, described second heat exchanger be configured to make carry out heat exchange in described First Heat Exchanger after air and cigarette Gas carries out heat exchange again, to raise flue-gas temperature,
It is expelled in air by described chimney through the flue gas of described second heat exchanger, through the air of described second heat exchanger It is directed into the upper area in described cooling tower, be expelled to air with after mixing with the saturated air producing in described cooling tower In.
2. according to claim 1 for power plant remove white haze device it is characterised in that
Described First Heat Exchanger is configured with the first smoke inlet and the first exhanst gas outlet connecting with described first smoke inlet, First air intake and the first air outlet slit connecting with described first air intake, the flue gas warp producing is burned in described generating Entered in described First Heat Exchanger by stating the first smoke inlet, and enter with via described first air in described First Heat Exchanger The air heat-exchange that mouth enters separates out moisture, and the flue gas that temperature reduces is discharged via described first exhanst gas outlet, the sky of temperature rising Gas is discharged via described first air outlet slit;
Described second heat exchanger is configured with the second smoke inlet and the second exhanst gas outlet connecting with described second smoke inlet, Second air intake and the second air outlet slit being connected with described second air intake, are discharged via described first exhanst gas outlet Flue gas and via described first air outlet slit discharge air entered by described second smoke inlet and the second air respectively Mouth enters in described second heat exchanger, and carries out heat exchange in described second heat exchanger,
The flue gas that temperature raises imports in described chimney via described second exhanst gas outlet, and the air that temperature reduces is via described the Two air outlet slits are directed into the upper area in described cooling tower.
3. according to claim 2 remove white haze device it is characterised in that described First Heat Exchanger also sets for power plant It is equipped with condensation-water drain, for discharging the moisture that described flue gas separates out.
4. according to claim 3 remove white haze device it is characterised in that described condensation-water drain passes through for power plant Pipeline connects to water treatment facilities.
5. according to claim 2 remove white haze device it is characterised in that also including for connecting for power plant State the first exhanst gas outlet and the pipeline of the second smoke inlet, and be used for connecting described first air outlet slit and second air intake Pipeline.
6. a kind of power plant stack gas processing system, for processing to the flue gas that burning electricity generation produces, to reduce environmental pollution, It is characterized in that, including:
Extracting tower, described extracting tower is configured to connect with the described boiler for burning electricity generation, with the cigarette that burning electricity generation is produced Gas carries out deacidification process, removes the sour gas in flue gas;
Dust arrester, described dust arrester is configured to connect with described extracting tower, to carry out to the flue gas processing through extracting tower Dust removal process, removes the particulate matter in described flue gas;
First Heat Exchanger, described First Heat Exchanger is configured to make the flue gas processing through described dust arrester to carry out heat friendship with air Change, to reduce flue-gas temperature, separate out moisture, and rise high air temperature;
Second heat exchanger, described second heat exchanger configuration bit is to make the flue gas after described First Heat Exchanger heat exchange and air again Secondary carry out heat exchange, to raise flue-gas temperature,
Discharged by chimney via the flue gas that described second heat exchanger is discharged, import via the air that described second heat exchanger is discharged Upper area to power generating plant cooling tower, to be expelled in air with producing in cooling tower after saturated air mixes.
7. power plant stack gas processing system according to claim 6 it is characterised in that
Described First Heat Exchanger is configured with the first smoke inlet being connected with described dust arrester and is entered with described first flue gas First exhanst gas outlet, the first air intake and first air outlet slit connecting with described first air intake of mouth connection, warp The flue gas crossing described dust arrester process enters in described First Heat Exchanger via stating the first smoke inlet, and changes described first Separate out moisture with via the air heat-exchange that described first air intake enters in hot device, the flue gas that temperature reduces is via described first Exhanst gas outlet is discharged, and the air that temperature raises is discharged via described first air outlet slit;
Described second heat exchanger is configured with the second smoke inlet and the second exhanst gas outlet connecting with described second smoke inlet, Second air intake and the second air outlet slit being connected with described second air intake, are discharged via described first exhanst gas outlet Flue gas and via described first air outlet slit discharge air entered by described second smoke inlet and the second air respectively Mouth enters in described second heat exchanger, and carries out heat exchange in described second heat exchanger,
The flue gas that temperature raises imports in described chimney via described second exhanst gas outlet, and the air that temperature reduces is via described the Two air outlet slits are directed into the upper area in described cooling tower.
8. power plant stack gas processing system according to claim 7 is it is characterised in that described First Heat Exchanger is additionally provided with For discharging the condensation-water drain of the moisture that described flue gas separates out.
9. power plant stack gas processing system according to claim 8 is it is characterised in that described condensation-water drain passes through pipeline Connect to water treatment facilities.
CN201620815813.0U 2016-07-29 2016-07-29 Go white haze device and power plant stack gas processing system for power plant Active CN206001498U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108261842A (en) * 2018-01-10 2018-07-10 山东国舜建设集团有限公司 A kind of cooling condensation and dewatering integrated elimination " white cigarette " method
CN110345504A (en) * 2019-08-05 2019-10-18 大唐东营发电有限公司 It is a kind of to remove white haze device for power plant
CN110819747A (en) * 2019-09-30 2020-02-21 广东韶钢松山股份有限公司 Blast furnace slag flushing dead steam eliminating and waste heat recovery system
CN112827329A (en) * 2021-02-07 2021-05-25 丁克敬 White smoke treatment device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108261842A (en) * 2018-01-10 2018-07-10 山东国舜建设集团有限公司 A kind of cooling condensation and dewatering integrated elimination " white cigarette " method
CN110345504A (en) * 2019-08-05 2019-10-18 大唐东营发电有限公司 It is a kind of to remove white haze device for power plant
CN110819747A (en) * 2019-09-30 2020-02-21 广东韶钢松山股份有限公司 Blast furnace slag flushing dead steam eliminating and waste heat recovery system
CN112827329A (en) * 2021-02-07 2021-05-25 丁克敬 White smoke treatment device

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