CN109442454A - A kind of wet electric precipitation of desulfurizing tower disappears white integral system - Google Patents
A kind of wet electric precipitation of desulfurizing tower disappears white integral system Download PDFInfo
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- CN109442454A CN109442454A CN201811268115.3A CN201811268115A CN109442454A CN 109442454 A CN109442454 A CN 109442454A CN 201811268115 A CN201811268115 A CN 201811268115A CN 109442454 A CN109442454 A CN 109442454A
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- China
- Prior art keywords
- flue gas
- desulfurizing tower
- wet electric
- temperature flue
- cooling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The present invention provides a kind of wet electric precipitation of desulfurizing tower and disappears white integral system, more particularly to fume treatment technical field, including desulfurizing tower and wet electric precipitator, the inside of wet electric precipitator is successively arranged wet electric precipitation mechanism from top to bottom, cooling zone and heating zone, the top of wet electric precipitator is equipped with cooling import and coolant outlet and high-temperature flue gas import and high-temperature flue gas outlet, the lower end and top of wet electric precipitator are respectively equipped with low-temperature flue gas import and chimney, the lower end and upper end of desulfurizing tower are respectively equipped with desulfurizing tower gas inlet and desulfurizing tower exhanst gas outlet, high-temperature flue gas outlet is connected with desulfurizing tower gas inlet by the first fume pipe, first fume pipe is equipped with blower, low-temperature flue gas import is connected with desulfurizing tower exhanst gas outlet by the second fume pipe, the low-temperature flue gas flowed out from desulfurizing tower successively passes through dedusting, cooling is so that saturated flue gas becomes insatiable hunger With flue gas and enter heating zone high-temperature flue gas carry out heat exchange.The present invention is eliminated white cigarette in a manner of energy-efficient and namely eliminates misty rain phenomenon.
Description
Technical field
The invention belongs to fume treatment technical fields, and in particular to a kind of wet electric precipitation of desulfurizing tower disappears white integral system.
Background technique
The wet flue gas of the chimneys such as coal-burning power plant or carbon element factory discharge is in contact with the lower surrounding air of temperature, flue gas drop
Temperature, institute's moisture vapor supersaturation condenses in flue gas in the process, and condensing water droplet generates refraction, scattering to light, to make cigarette
Plumage shows " wet plume " (being commonly called as " big white cigarette ", " white haze " etc.) of white or grey.When wet flue gas discharges, the lift of " plume "
Rise can decrease, and diffusion effect is relatively poor, and flooring concentration of the pollutant near chimney will increase, and it is existing to aggravate gray haze
As influencing visibility.When environment temperature is low, defogging effect is poor, it is likely that " chimney rain " phenomenon occurs, is unfavorable for simultaneously
Plume rise diffusion, or even local acid rain can be aggravated, corrosion engineering facility and building etc..The public is weakened to environmental protection work
The satisfaction of work, the resident near quite a few coal-burning power plant propose related demand to the improvement of wet plume, and place is related
Government department also proposes requirement to the control of wet plume.
With the raising that country requires pollutant emission, pollution that current coal-fired plant flue gas discharges pollutants to environment
It has declined to a great extent.Flue gas effectively controls particulate matter, oxysulfide, nitrogen oxygen after the measures such as dedusting, desulphurization and denitration, demercuration
The discharge of the pollutants such as compound and mercury.The solution technology of " plume phenomenon " and energy conservation " cigarette " measure that disappears are also more and more important.
Therefore it is badly in need of a kind of wet electric precipitation of the desulfurizing tower for being able to solve existing issue to disappear white integral system.
Summary of the invention
Disappear white integral system the object of the present invention is to provide a kind of wet electric precipitation of desulfurizing tower, is eliminated in a manner of energy-efficient white
Cigarette namely eliminates misty rain phenomenon.
The present invention provides the following technical solutions:
A kind of wet electric precipitation of desulfurizing tower disappears white integral system, including desulfurizing tower and wet electric precipitator, the wet electric precipitation
The inside of device is successively arranged wet electric precipitation mechanism, cooling zone and heating zone from top to bottom, and the top of the wet electric precipitator is equipped with
Cooling import and coolant outlet and high-temperature flue gas import and high-temperature flue gas outlet, the cooling import and the coolant outlet are logical
The cooling zone connection is crossed, the high-temperature flue gas import is connected to the high-temperature flue gas outlet by the heating zone, described wet
The lower end and top of electric precipitator are respectively equipped with low-temperature flue gas import and chimney, and the lower end and upper end of the desulfurizing tower are respectively equipped with
Gas inlet and exhanst gas outlet, the high-temperature flue gas outlet and the gas inlet are connected by the first fume pipe, and described first
Fume pipe is equipped with blower, and the low-temperature flue gas import is connected with the exhanst gas outlet by the second fume pipe, from the desulfurization
Tower outflow low-temperature flue gas be dusted by the wet electric precipitation mechanism, and the cooling zone at least reduce by 5 degrees Celsius with
It goes up so that saturated flue gas becomes unsaturated flue gas, the high-temperature flue gas of the unsaturation flue gas and the entrance wet electric precipitator is described
Heating zone carries out heat exchange.
Preferably, the heating zone is equipped with multiple heat dissipation finned tubes in parallel in the horizontal direction, is equipped with height in the heat dissipation finned tube
Warm flue gas circulation passage, the high-temperature flue gas import and the high-temperature flue gas outlet are connected by the high-temperature flue gas circulation passage
Logical, the gap in horizontal direction between the adjacent heat dissipation finned tube forms low-temperature flue gas circulation passage.
Preferably, the cross-sectional area of the inlet end of first fume pipe is equal to multiple high-temperature flue gas circulation passages
Cross-sectional area sum, the cross-sectional area of the chimney be equal to all low-temperature flue gas circulation passages cross-sectional area it
With.
Preferably, the downside of the heat dissipation finned tube is equipped with pointed baffle, and the shape of the cross section of the baffle is
Triangle and wedge angle is downward.
Preferably, the cross section of the heat dissipation finned tube is rectangle, and the heat dissipation finned tube and the baffle integrally synthesize
And it is connected to.
Preferably, the outer wall of the baffle is equipped with thickening layer, and the thickening layer is identical with the material of the baffle.
Preferably, the cooling zone is equipped with more first pipes in parallel in the horizontal direction, all first pipes
Import constitutes the cooling import, and coolant outlet described in the export mixes of all first pipes, the cooling zone passes through
Natural wind is passed through in the first pipe to cool down.
Preferably, the cooling zone in the horizontal direction in parallel be equipped with more second pipes, the import of the second pipe and
The cooling inlet communication, the outlet of the second pipe are connected to the coolant outlet, the cooling import and the cooling
Outlet is respectively connected with round pipe, and the cooling import connects water inlet pipe by the round pipe, and the coolant outlet passes through described
Round pipe connects outlet pipe, the water outlet of the water inlet end of the water inlet pipe and the outlet pipe be separately connected pond water outlet and
Water inlet is connected with water pump on the close water inlet end of the water inlet pipe.
It preferably, further include cooling tower, the water inlet of the cooling tower is connected by pipeline with the water outlet in the pond,
The water outlet of the cooling tower is connected with the water inlet end of the water inlet pipe.
Preferably, the inside of the wet electric precipitator is equipped with demister, and the demister upper end installation spray timing is rinsed
Device, the demister is between the cooling zone and the heating zone.
Preferably, the lower section of the cooling zone is equipped with the condensate water discharging mechanism for collecting condensed water, the condensed water
Drainage mechanism is located at the top of the wet electric precipitation mechanism, and the condensate water discharging mechanism includes several condensed waters being set side by side
Drain honeycomb duct and several condensate water discharging roads being set side by side, each condensate water discharging honeycomb duct and each condensation
Water drainage arranges that the cross section of the condensate water discharging honeycomb duct is in " people " font along the horizontal direction of the cooling zone,
The cross section in the condensate water discharging road is in " people " font to stand upside down, and the number of the condensate water discharging honeycomb duct is than the condensation
The number of water drainage is one few, interlaced arrangement above and below the condensate water discharging honeycomb duct and the condensate water discharging road, and one
The lower end of the two side walls of the condensate water discharging honeycomb duct is located at the top in two adjacent condensate water discharging roads.
Preferably, the flue-gas temperature of the high-temperature flue gas outlet outflow is 130-150 degrees Celsius, the cigarette of the chimney discharge
Temperature degree is 80-100 degrees Celsius.
Preferably, the diameter of the cross section of first fume pipe is 1.9 meters, and the diameter of the cross section of the chimney is
2.2 rice.
The beneficial effects of the present invention are:
1, the low-temperature flue gas being discharged in the high-temperature flue gas and desulfurizing tower being discharged in the heating zone of wet electric precipitator, heat boiler
It carries out heat exchange and meets the air inlet temperature of desulfurizing tower so that high-temperature flue gas is reduced to 130-150 degrees Celsius from 200 degrees Celsius or more
Degree requires;The flue gas that desulfurizing tower is discharged and the unsaturated flue gas after dedusting, cooling, which are promoted from 50-55 degrees Celsius to 80-100, to be taken the photograph
Family name's degree carries out the white processing that disappears.
2, due to heat exchange, reduce the flue gas being individually discharged to heat boiler and carry out cooling processing and individually to de-
The flue gas of sulphur tower discharge carries out heating and disappears a large amount of thermal energy of white processing saving, and circular economy is energy saving.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is the structural representation for being cut away high-temperature flue gas outlet of the wet electric precipitator of the invention using cooling water circulation
Figure;
Fig. 3 is the sectional view of the side-looking direction of the corresponding wet electric precipitator of the invention of Fig. 2;
Fig. 4 is a kind of structural schematic diagram of the wet electric precipitator of the invention to be cooled down using natural wind;
Fig. 5 is the cross-sectional view of the side-looking direction of condensate water discharging mechanism.
Wherein in the figure, it is marked as 1, desulfurizing tower;2, wet electric precipitator;3, wet electric precipitation mechanism;4, cooling zone;5, it heats
Area;6, cooling import;7, coolant outlet;8, high-temperature flue gas import;9, high-temperature flue gas outlet;10, low-temperature flue gas import;11, cigarette
Chimney;12, desulfurizing tower gas inlet;13, desulfurizing tower exhanst gas outlet;14, the first fume pipe;15, blower;16, the second fume pipe;
17, radiate finned tube;18, high-temperature flue gas circulation passage;19, low-temperature flue gas circulation passage;20, baffle;21, first pipe;22,
Second pipe;23, round pipe;24, water inlet pipe;25, outlet pipe;26, pond;27, water pump;28, demister;29, spray timing
Flusher;30, condensate water discharging mechanism;31, condensate water discharging honeycomb duct;32, condensate water discharging road.
Specific embodiment
The process that plume is a comprehensive treatment is eliminated, should be set about from following several respects: (1) it is wet to reduce absolutely containing for flue gas
Amount;(2) the opposite water capacity of flue gas is reduced;(3) generation and discharge for controlling SO3 in flue gas, control the discharge of NOx and rationally spray
Ammonia;(4) submicron particles and acid mist are removed, the generation of acid aerosol is reduced.To this according to the basic cause of " plume phenomenon "
Principle uses flue gas technology in conjunction with actual production.
Flue gas technology is heated into the wet saturated flue gas before chimney, and the temperature of wet flue gas is increased, and is protected
The absolute moisture content for holding wet flue gas is constant, and opposite water capacity reduces, so that flue gas relative humidity is less than the saturated humidity after heating,
To reach the technical requirements for eliminating plume.Disappear white integral system in view of this, providing a kind of wet electric precipitation of desulfurizing tower.Specifically such as
Under:
As shown in Figs. 1-5, a kind of wet electric precipitation of desulfurizing tower 1 disappears white integral system, including desulfurizing tower 1 and wet electric precipitator
2, the inside of wet electric precipitator 2 is successively arranged wet electric precipitation mechanism 3, cooling zone 4 and heating zone 5, wet electric precipitator 2 from top to bottom
Top be equipped with cooling import 6 and coolant outlet 7 and high-temperature flue gas import 8 and high-temperature flue gas outlet 9, cooling import 6 and cold
But outlet 7 is connected to by cooling zone 4, and high-temperature flue gas import 8 is connected to high-temperature flue gas outlet 9 by heating zone 5, wet electric precipitator
2 lower end and top are respectively equipped with low-temperature flue gas import 10 and chimney 11, and the lower end and upper end of desulfurizing tower 1 are respectively equipped with desulfurizing tower
Gas inlet 12 and desulfurizing tower exhanst gas outlet 13, high-temperature flue gas outlet 9 and desulfurizing tower gas inlet 12 pass through the first fume pipe 14
It is connected, the first fume pipe 14 is equipped with blower 15, and low-temperature flue gas import 10 and desulfurizing tower exhanst gas outlet 13 pass through the second fume pipe
16 are connected, and the low-temperature flue gas flowed out from desulfurizing tower 1 is dusted by wet electric precipitation mechanism 3, and at least reduces by 5 in cooling zone 4
Degree Celsius or more make saturated flue gas become unsaturated flue gas, the unsaturation flue gas and enter wet electric precipitator 2 high-temperature flue gas
Heat exchange is carried out in heating zone 5.Wherein, the wet motor structure phase in wet electric precipitation mechanism 3 and wet electric precipitator in the prior art
Together, it therefore no longer writes out in detail.
Specifically, heating zone 5 is equipped with multiple heat dissipation finned tubes 17 in parallel in the horizontal direction, high temperature cigarette is equipped in heat dissipation finned tube 17
Air-flow circulation passage 18, high-temperature flue gas import 8 and high-temperature flue gas outlet 9 are connected to by high-temperature flue gas circulation passage 18, horizontal direction
Gap between upper adjacent heat dissipation finned tube 17 forms low-temperature flue gas circulation passage 19.The high-temperature flue gas that desulfurizing tower 11 flows out is from height
Warm flue gas circulation passage 18 flows out, and transfers thermal energy to heat dissipation finned tube 17, and heat dissipation finned tube 17 transfers thermal energy to low-temperature flue gas stream
The low-temperature flue gas that slave desulfurizing tower 11 in circulation passage 19 is discharged, makes its temperature get a promotion.
Specifically, the cross-sectional area of the inlet end of the first fume pipe 14 is equal to the cross of multiple high-temperature flue gas circulation passages 18
The sum of sectional area, the cross-sectional area of chimney 11 are equal to the cross-sectional area sum of all low-temperature flue gas circulation passages 19.In this way
It can keep steady air current.
Specifically, the downside of heat dissipation finned tube 17 is equipped with pointed baffle 20, the shape of the cross section of baffle 20 is three
Angular and wedge angle is downward.The setting of baffle 20, can reduce that the low-temperature flue gas in low-temperature flue gas circulation passage 19 is subject to dissipates
The resistance of hot finned tube 17 extends the use of heat dissipation finned tube 17 to reduce the impact force to heat dissipation finned tube 17 to a certain extent
Service life.
Specifically, the cross section of heat dissipation finned tube 17 is rectangle, heat dissipation finned tube 17 and 20 one synthesis of baffle and is connected to.
Specifically, the outer wall of baffle 20 is equipped with thickening layer, thickening layer is identical with the material of baffle 20.Due to baffle
20, for a long time by the impact force of low-temperature flue gas, increase thickening layer, can increase the service life of baffle 20.
The type of cooling of cooling zone 4 includes natural air cooled and water circulating cooling two ways, specific as follows:
Specifically, cooling zone 4 is equipped with more first pipes 21, the import of all first pipes 21 in parallel in the horizontal direction
Cooling import 6 is constituted, the export mixes coolant outlet 7 of all first pipes 21, cooling zone 4 in first pipe 21 by being passed through
Natural wind cools down.Under normal circumstances, through electric precipitation mechanism 3 overly moist, treated that flue-gas temperature reaches 60 degrees centigrades,
Cooling processing can also be carried out to 60 degrees Celsius of flue gas even if natural wind in the hot summer, the natural wind in atmosphere enters
Cool down in first pipe 21 to cooling zone 4, and then to cooling processing is carried out by flue gas herein, so that saturated flue gas becomes
For unsaturated flue gas.First pipe 21 can be made of 316L stainless steel tube.
Specifically, cooling zone 4 is equipped with more second pipes 22, the import and cooling of second pipe 22 in parallel in the horizontal direction
Import 6 is connected to, and the outlet of second pipe 22 is connected to coolant outlet 7, and cooling import 6 and coolant outlet 7 are respectively connected with round pipe
23, cooling import 6 connects water inlet pipe 24 by round pipe 23, and coolant outlet 7 connects outlet pipe 25, water inlet pipe by round pipe 23
24 water inlet end and the water outlet of outlet pipe 25 are separately connected the water outlet and water inlet in pond 26, the close water inlet of water inlet pipe 24
Water pump 27 is connected on end.Cooling tower water supply can also be increased to cool down, the water inlet of cooling tower passes through pipeline and pond 26
Water outlet be connected, the water outlet of cooling tower is connected with the water inlet end of water inlet pipe 24.It is recycled by water and is dropped to cooling zone 4
Temperature, thus to cooling processing is carried out by flue gas herein, so that saturated flue gas becomes unsaturated flue gas.Second pipe 22 can be by
316L stainless steel tube is made.
Specifically, the inside of wet electric precipitator 2 is equipped with demister 28,28 upper end of demister installation spray timing flusher
29, demister 28 is between cooling zone 4 and heating zone 5.Namely demister 28 is mounted on point of the cooling zone 4 with heating zone 5
Boundary Dian Chu, the function of demister 28 are during spray absorber, and the droplet of flue gas entrainment, slurry drops trap.It prevents
Fouling on the pipeline of heating zone 5 or cooling zone 4, influences the efficiency of cold and hot exchange.
Specifically, the lower section of cooling zone 4 is equipped with the condensate water discharging mechanism 30 for collecting condensed water, condensate water discharging machine
Structure 30 is located at the top of wet electric precipitation mechanism 3, and condensate water discharging mechanism 30 includes several condensate water discharging water conservancy diversion being set side by side
Road 31 and several condensate water discharging roads 32 being set side by side, each condensate water discharging honeycomb duct 31 and each condensate water discharging road 32
Horizontal direction along cooling zone 4 arranges that the cross section of condensate water discharging honeycomb duct 31 is in " people " font, condensate water discharging road 32
Cross section in stand upside down " people " font, the number of condensate water discharging honeycomb duct 31 fewer than the number in condensate water discharging road 32 one
It is a, about 32 interlaced arrangement of condensate water discharging honeycomb duct 31 and condensate water discharging road, the two of a condensate water discharging honeycomb duct 31
The lower end of a side wall is located at the top in two adjacent condensate water discharging roads 32.Namely refer to two adjacent condensate water discharging roads
Top between 32 is equipped with a condensate water discharging honeycomb duct 31, so that is flowed down on the side wall of condensate water discharging honeycomb duct 31 is cold
In condensate to condensate water discharging road 32.The purpose of the setting of condensate water discharging honeycomb duct 31 and condensate water discharging road 32 is to
Ensure flue gas can the gap normally between condensate water discharging honeycomb duct 31 and condensate water discharging road 32 normally circulate, meanwhile,
Condensed water on the side wall of condensate water discharging honeycomb duct 31 (playing guide functions) can be condensed water drainage 32 collection.Fig. 5
In arrow, indicate flue gas circulating direction.The purpose that condensate water discharging mechanism 30 is arranged is collected in cold and hot exchange process, is generated
Condensed water, avoid condensed water from influencing the dry channel of wet electric precipitation mechanism 3, simultaneously for be equipped with spray timing flusher 29
, the water sprayed can also be discharged, water is avoided to influence the dry channel of wet electric precipitation mechanism 3.
Specifically, the diameter of the cross section of the first fume pipe 14 is 1.9 meters, the diameter of the cross section of chimney 11 is 2.2 meters.
This is the regular size of this system.
Principle
Desulfurizing tower 1 be discharged low-temperature flue gas (55-60 degrees Celsius of temperature) in wet electric precipitator 2 after dust removal process,
Cooling processing is carried out in cooling zone 4 so that saturated flue gas becomes unsaturated flue gas (temperature is 50-55 degrees Celsius), ordinary circumstance
Under, cooling reaches 5 degrees Celsius or more saturated flue gas may make to become unsaturated flue gas, the unsaturation flue gas and by from hot pot
The high-temperature flue gas that fire grate goes out carries out heat exchange in heating zone 5, so that the 200 original above temperature Celsius are reduced to 130-150
Degrees centigrade makes the unsaturation flue-gas temperature from 50-55 degrees Celsius to be suitble to the temperature of the import flue gas of desulfurizing tower 1
Left and right be increased to 80-100 degrees Celsius, have the function that removal disappear it is white, both saved it is in the prior art to heat boiler be discharged
(prior art generally uses cooling jacket to the flue gas cool-down being discharged from heat boiler to the energy of cooling high-temperature fume, to reach de-
The intake air temperature requirement of sulphur tower 1), meanwhile, and reduce the flue gas being discharged to desulfurizing tower 1 promote temperature with reach disappear it is white a large amount of
Thermal energy.
It is worth noting that, although demister 28 and condensate water discharging mechanism 30 only occur in figure 2 and figure 3,
It is not to say that and only refers to suitable for the hydronic wet electric precipitator 2 of water, be also suitble to natural air cooled wet electric precipitator 2.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, although with reference to the foregoing embodiments
Invention is explained in detail, for those skilled in the art, still can be to foregoing embodiments institute
The technical solution of record is modified or equivalent replacement of some of the technical features.It is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
- The white integral system 1. a kind of wet electric precipitation of desulfurizing tower disappears, which is characterized in that described including desulfurizing tower and wet electric precipitator The inside of wet electric precipitator is successively arranged wet electric precipitation mechanism, cooling zone and heating zone from top to bottom, the wet electric precipitator Top is equipped with cooling import and coolant outlet and high-temperature flue gas import and high-temperature flue gas outlet, the cooling import and described cold But outlet is connected to by the cooling zone, and the high-temperature flue gas import and the high-temperature flue gas outlet are connected by the heating zone Logical, the lower end and top of the wet electric precipitator are respectively equipped with low-temperature flue gas import and chimney, the lower end of the desulfurizing tower and upper End is respectively equipped with desulfurizing tower gas inlet and desulfurizing tower exhanst gas outlet, the high-temperature flue gas outlet and the desulfurizing tower gas inlet It is connected by the first fume pipe, first fume pipe is equipped with blower, the low-temperature flue gas import and the desulfurization tower flue gas Outlet is connected by the second fume pipe, and the low-temperature flue gas flowed out from the desulfurizing tower is removed by the wet electric precipitation mechanism Dirt, and at least reduce by 5 degrees Celsius or more in the cooling zone and saturated flue gas is made to become unsaturated flue gas, the unsaturation flue gas and High-temperature flue gas into the wet electric precipitator carries out heat exchange in the heating zone.
- The white integral system 2. the wet electric precipitation of desulfurizing tower according to claim 1 disappears, which is characterized in that the heating zone edge Horizontal direction parallel is equipped with multiple heat dissipation finned tubes, is equipped with high-temperature flue gas circulation passage, the high-temperature flue gas in the heat dissipation finned tube Import is connected to the high-temperature flue gas outlet by the high-temperature flue gas circulation passage, the adjacent radiating fin in horizontal direction Gap between pipe forms low-temperature flue gas circulation passage, and the cross-sectional area of the inlet end of first fume pipe is equal to multiple institutes The cross-sectional area sum of high-temperature flue gas circulation passage is stated, the cross-sectional area of the chimney is equal to all low-temperature flue gas stream The cross-sectional area sum of circulation passage.
- The white integral system 3. the wet electric precipitation of desulfurizing tower according to claim 2 disappears, which is characterized in that the heat dissipation finned tube Downside be equipped with pointed baffle, the shape of the cross section of the baffle is triangle and wedge angle is downward.
- The white integral system 4. the wet electric precipitation of desulfurizing tower according to claim 3 disappears, which is characterized in that the heat dissipation finned tube Cross section be rectangle, the heat dissipation finned tube and baffle one are synthesized and are connected to, and the outer wall of the baffle is equipped with Thickening layer, the thickening layer are identical with the material of the baffle.
- The white integral system 5. the wet electric precipitation of desulfurizing tower according to claim 1 disappears, which is characterized in that the cooling zone edge Horizontal direction parallel is equipped with more first pipes, and the import of all first pipes constitutes the cooling import, all Coolant outlet described in the export mixes of the first pipe, the cooling zone are carried out by being passed through natural wind in the first pipe Cooling.
- The white integral system 6. the wet electric precipitation of desulfurizing tower according to claim 1 disappears, which is characterized in that the cooling zone edge Horizontal direction parallel is equipped with more second pipes, the import of the second pipe and the cooling inlet communication, second pipe The outlet in road is connected to the coolant outlet, and the cooling import and the coolant outlet are respectively connected with round pipe, the cooling Import connects water inlet pipe by the round pipe, and the coolant outlet connects outlet pipe, the water inlet pipe by the round pipe Water inlet end and the water outlet of the outlet pipe be separately connected the water outlet and water inlet in pond, the close water inlet of the water inlet pipe Water pump is connected on end.
- The white integral system 7. the wet electric precipitation of desulfurizing tower according to claim 6 disappears, which is characterized in that further include cooling Tower, the water inlet of the cooling tower are connected by pipeline with the water outlet in the pond, the water outlet of the cooling tower with it is described The water inlet end of water inlet pipe is connected.
- 8. the wet electric precipitation of desulfurizing tower described in -7 any one disappears white integral system according to claim 1, which is characterized in that institute The inside for stating wet electric precipitator is equipped with demister, the demister upper end installation spray timing flusher, the demister position Between the cooling zone and the heating zone.
- The white integral system 9. the wet electric precipitation of desulfurizing tower according to claim 8 disappears, which is characterized in that the cooling zone Lower section is equipped with the condensate water discharging mechanism for collecting condensed water, and the condensate water discharging mechanism is located at the wet electric precipitation mechanism Top, the condensate water discharging mechanism include several condensate water discharging honeycomb ducts being set side by side and it is several be set side by side it is cold Condensate drainage, each condensate water discharging honeycomb duct and each condensate water discharging road are along the level of the cooling zone Direction arrangement, the cross section of the condensate water discharging honeycomb duct are in " people " font, and the cross section in the condensate water discharging road is in Vertical " people " font, it is the number of the condensate water discharging honeycomb duct one fewer than the number in the condensate water discharging road, described cold Condensate drains honeycomb duct and the condensate water discharging road interlaced arrangement up and down, two sides of a condensate water discharging honeycomb duct The lower end of wall is located at the top in two adjacent condensate water discharging roads.
- The white integral system 10. the wet electric precipitation of desulfurizing tower according to claim 1 disappears, which is characterized in that the high temperature cigarette The flue-gas temperature of gas outlet outflow is 130-150 degrees Celsius, and the flue-gas temperature of the chimney discharge is 80-100 degrees Celsius.
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Cited By (1)
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CN110141917A (en) * | 2019-05-09 | 2019-08-20 | 张波 | A kind of heating of system for desulfuration and denitration disappears white equipment |
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