CN104525374B - Vertical current wet electrical dust precipitator carry effect device - Google Patents
Vertical current wet electrical dust precipitator carry effect device Download PDFInfo
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- CN104525374B CN104525374B CN201410838739.XA CN201410838739A CN104525374B CN 104525374 B CN104525374 B CN 104525374B CN 201410838739 A CN201410838739 A CN 201410838739A CN 104525374 B CN104525374 B CN 104525374B
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Abstract
The invention provides a kind of vertical current wet electrical dust precipitator carries effect device, for promoting the uniform effect of body flow field of electric cleaner, reduces the short stream of flue gas, improves the efficiency of dust collection of electric cleaner.Airflow uniform distribution buttress in the present invention uses airflow uniform distribution plate according to electric field entrance air flow method characteristic, and in making electric field, air flow method is more uniform, optimizes flow field；Simultaneously by setting up choked flow ring flat-plate, spoiler, water conservancy diversion ring flat-plate and the tank inner member that confluxes, in making electric field, short stream region is reduced.The invention has the advantages that, the inner member set up makes simple, it is easy to installing, the SR of increase is little, and electric field flow field can be made to be more evenly distributed, and reduces the short stream of flue gas, thus ensures that flue dust is charged uniformly, and flue dust escape amount is little, arrives the purpose of high-effective dust-removing.
Description
Technical field
The present invention relates to electric precipitation field, be specifically related to a kind of vertical current wet electrical dust precipitator carries effect device.
Background technology
Developing rapidly of modern industry also brings serious environment to the mankind while offering convenience
Polluting, atmosphere pollution is the main themes in various environmental pollution, and by coal-burning power plant and Industrial Boiler
The pollutant produced is the main source of air environmental pollution.Along with Environmental protection is more and more heavier
Depending on, fine flue dust, SO3The reduction of discharging of the pollutant that acid mist, mercury etc. exist with aerosol form is carried
Having arrived agenda, PM2.5 is included in by country's new " ambient air quality " the most in the lump simultaneously
Ambient air quality.Thus, the most effectively alleviate flyash fine grained, gypsum fine grained and
SO3Impact on environment, and effectively reduce the harm that health is brought by PM2.5 fine particulates,
Become current atmosphere pollution and administer the task of top priority of industry.
For solving the problems referred to above and realizing the advanced purification technology of flue dust, need to consider to set up after desulfurizing tower
Wet electrical dust precipitator.Wet electrical dust precipitator can remove the dirt in flue gas, acid mist, water droplet, aerosol,
The harmful substances such as PM2.5, are the effective equipment administering atmospheric dust pollution.Coal-burning power plant and chemical industry,
The fields such as metallurgy are with a wide range of applications, and will produce huge economical, societal benefits.
Vertical current wet electrical dust precipitator is the one of wet electrical dust precipitator, and it has many pollution synergetic and controls
Managing, save land, economize on water, circulate and the characteristic of minimum discharge, lectotype selection is little, investment cost is low, this
And transformation project newly-built to the flue gas pollutant terminal processes after the existing wet desulphurization of major part power plant is come
Say there is advantageous advantage, for site condition, Technical Economy, be comparatively ideal
Selection scheme.
But it is as the strictest of national environmental standard, it is desirable to electric cleaner outlet drain dust content
Drop to 5mg/Nm3Hereinafter, some areas and the higher enterprise of environmental requirement even require lower, because of
This is the ultra-clean discharge reaching pollutant, need to optimize existing vertical current wet electrical dust precipitator further
Technology, improves its efficiency of dust collection.
The distribution of vertical current wet cottrell flow field is very important to affect electric cleaner dedusting
One of factor of efficiency, if air velocity distribution skewness in electric field, it will would cause dust in electric field
Charged uneven, thus affect efficiency of dust collection, thus in electric field to be ensured, air flow method is uniform and then equal
The flow field that cloth flows flue gas is critically important.
In addition to the efficiency of dust collection that the Flow Field Distribution in electric field can affect electric precipitation, the short stream of flue gas in electric field
Phenomenon is also one of very important factor affecting ESP Efficiency.Vertical current wet type electricity removes
Dirt device inner anode plate uses positive plate dust face arrangement alternately parallel with cathode line with cathode line,
Positive plate is vertically placed consistent with flue gas circulating direction.In electric field section because the electric discharge of cathode line, flue gas
In the PM2.5 fine dust that contains, aerosol etc. charged after under the effect of electric field force, caught by positive plate
Collection；But the vertical current wet electrical dust precipitator of routine (as Fig. 4,9) for ensureing cathode line and tower wall
Electric discharge safety, around the tower wall and electric field subregion septal pathways is not provided with cathode line and positive plate,
Have small part region in the region of tower wall and electric field subregion septal pathways unavoidably not at electricity
In the range of gathering dust in field, but for ensureing and improving efficiency of dust collection, it is necessary to reduce the cigarette escaped in this subregion
Tolerance.
The problem that the present invention is directed to the existence of above vertical current wet electrical dust precipitator proposes a kind of vertical current
Wet electrical dust precipitator carry effect device.
Summary of the invention
It is an object of the invention to provide a kind of vertical current wet electrical dust precipitator carries effect device, improves electric cleaner
Interior flue gas even distribution effect, reduces flue gas short stream region, reduces leak rate, thus improves the dedusting of electric cleaner
Efficiency.Airflow uniform distribution plate in the present invention optimizes the intrinsic Flow Field Distribution of electric cleaner, works in coordination with choked flow simultaneously
Ring flat-plate, V-arrangement spoiler, conflux tank and guide ring plate structure, reach the purpose of Improvement of dust removal..
The technical scheme that the present invention provides is as follows:
A kind of vertical current wet electrical dust precipitator carry effect device, described vertical current wet electrical dust precipitator includes flue gas
Entrance, electric field section, exhanst gas outlet section, be provided with positive plate and cathode line, and described electricity in described electric field section
Include in section that multiple electric field subregion, multiple positive plate lower ends of each described electric field subregion are provided with to be connected
Water leg；
The described effect device that carries includes:
At least one of which airflow uniform distribution plate, it is arranged on the smoke inlet section of described vertical current wet electrical dust precipitator,
For guiding flue gas to flow uniformly through described electric field section；
Reducing-flow structure, it choked flow ring flat-plate and spoiler of including being arranged on described positive plate upper end；
Wherein, described choked flow ring flat-plate is arranged at the tower wall of described electric field section and described vertical current wet electrical dust precipitator
Between circular passage at, and stop that flue gas passes through at this circular passage；
Described spoiler is arranged at the passage area of adjacent described electric field by stages, and stops that flue gas is from this
Pass through at passage；
Flow-guiding structure, it includes the water conservancy diversion ring flat-plate being arranged on below described positive plate and is arranged on described positive plate
The tank that confluxes of lower end；
Wherein, the outer shroud of described water conservancy diversion ring flat-plate is connected with the tower wall of described vertical current wet electrical dust precipitator, inner ring
Extend to tower body center position, make the flue gas at tower wall converge in the middle part of tower body；
The described tank that confluxes is arranged at the passage area of adjacent described electric field by stages, and stop flue gas from
Pass through at this passage, and described in the tank that confluxes be connected with described water leg.
It is also preferred that the left described airflow uniform distribution plate is the orifice plate becoming percent opening；
When the tower body of described vertical current wet electrical dust precipitator in the cross section being perpendicular on flue gas flow direction direction for circle
During shape, the percent opening of described airflow uniform distribution plate successively decreases to tower body center at the tower wall of tower body.
It is also preferred that the left described airflow uniform distribution plate is the orifice plate becoming percent opening；
When the tower body of described vertical current wet electrical dust precipitator is square in the cross section being perpendicular on flue gas flow direction direction
During shape, described airflow uniform distribution plate can be assembled by the plate of polylith difference percent opening；Near described positive plate
Airflow uniform distribution packing free ratio at the region of a pair tower wall pointed by end is minimum, the gas of tower body central area
Stream uniform board percent opening takes second place, and the airflow uniform distribution packing free ratio in other regions is the highest.
It is also preferred that the left described airflow uniform distribution plate is by annular slab or fanning strip or triangular plate or rectangular slab
Plant or multiple assembled.
It is also preferred that the left the hole offered on described airflow uniform distribution plate is circular or polygon, and the arrangement mode in this hole
For equidistant array or equilateral triangle array.
It is also preferred that the left the outer shroud of described choked flow ring flat-plate is connected with the tower wall of described vertical current wet electrical dust precipitator, institute
The inner ring stating choked flow ring flat-plate is connected with outermost described positive plate；
Described choked flow ring flat-plate is covered in the top of described circular passage.
It is also preferred that the left described spoiler is V-arrangement spoiler, and described V-arrangement spoiler is inverted in adjacent institute
Stating at the passage area of electric field by stages, its tip is upper.
It is also preferred that the left described water conservancy diversion ring flat-plate is the ring flat-plate being obliquely installed, and outer shroud side is higher than inner ring side.
It is also preferred that the left the angle between described water conservancy diversion ring flat-plate and tower wall is 75-80 °.
The vertical current wet electrical dust precipitator provided by the present invention carry effect device, it is possible to bring following at least one
Kind beneficial effect:
1. airflow uniform distribution plate is set at the smoke inlet section of vertical current wet electrical dust precipitator, wet type electricity can be made
In deduster, air flow method is uniform, plays the purpose of the Flow Field Distribution optimizing electric cleaner.Air flow method is shadow
Ringing one of very important factor of ESP Efficiency, therefore in electric cleaner, air flow method is the most uniform,
Flue dust is charged the most uniform, and dust removing effects is the best.According to air flow method characteristic in electric cleaner, airflow uniform distribution
Plate uses the design becoming percent opening, and in can making electric cleaner, air flow method is more uniform, thus promotes dedusting
Efficiency.Such as when the tower body of vertical current wet electrical dust precipitator in the cross section being perpendicular on flue gas flow direction direction for circle
During shape, the percent opening of airflow uniform distribution plate successively decreases to tower body center at the tower wall of tower body；When vertical current wet type electricity
The tower body of deduster is when the cross section being perpendicular on flue gas flow direction direction is rectangle, and airflow uniform distribution plate can be by many
The plate of block difference percent opening is assembled.
2. the short stream of wet electrical dust precipitator flue gas of plate line type structure is unavoidable, but for promoting removing of electric cleaner
Dirt efficiency, reaches the purpose of ultra-clean discharge, reduces the short stream of flue gas in electric cleaner, and it is required for reducing leak rate
's.The polylith spoiler that the present invention is arranged in electric field section, the tank that confluxes, water conservancy diversion ring flat-plate can play flue gas resistance
Stream, the effect of water conservancy diversion, effectively guide in the middle part of the flue gas flow direction tower body of tower wall, and stop that flue gas is from electricity
Circular passage between field section and tower wall is flow through, and stops that the flue gas passage from adjacent electric field by stages flows through,
Thus reduce the short stream of flue gas to a certain extent, reduce leak rate, reach the purpose of high-effective dust-removing.
Accompanying drawing explanation
Below by the way of the most understandable, accompanying drawings preferred embodiment, wet to a kind of vertical current
The above-mentioned characteristic, technical characteristic, advantage and the implementation thereof that carry effect device of formula electric cleaner give further
Explanation.
Fig. 1 be cross section be the front view of a kind of embodiment of circular wet electrical dust precipitator；
Fig. 2 be cross section be the side view of a kind of embodiment of circular wet electrical dust precipitator；
Fig. 3 be cross section be that the airflow uniform distribution packing free ratio of a kind of embodiment of circular wet electrical dust precipitator is arranged
Figure；
Fig. 4 be cross section be the flue gas short stream regional cross section figure of a kind of embodiment of circular wet electrical dust precipitator；
Fig. 5 be cross section be that the spoiler Smoke prevention of a kind of embodiment of circular wet electrical dust precipitator is breathed hard flow structure
Top view；
Fig. 6 be cross section be the front view of a kind of embodiment of square wet electrical dust precipitator；
Fig. 7 be cross section be the side view of a kind of embodiment of square wet electrical dust precipitator；
Fig. 8 be cross section be a kind of embodiment of square wet electrical dust precipitator airflow uniform distribution packing free ratio arrange
Figure；
Fig. 9 be cross section be the flue gas short stream regional cross section figure of a kind of embodiment of square wet electrical dust precipitator；
Figure 10 be cross section be that the spoiler Smoke prevention of a kind of embodiment of square wet electrical dust precipitator is breathed hard stream knot
Structure top view.
Drawing reference numeral illustrates:
1 smoke inlet section；2 electric field sections；3 exhanst gas outlet sections；4 positive plates；401 positive plates
Upper end；402 positive plate lower ends；5 airflow uniform distribution plates；6 water legs；7 conflux tank；8 lead
Stream ring flat-plate；9 choked flow ring flat-plates；10 V-arrangement spoilers；11 electric field subregion septal pathwayses；12 electric field sections
And the circular passage between tower wall.
Detailed description of the invention
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, will compare attached below
The detailed description of the invention of the figure explanation present invention.It should be evident that the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other embodiment.
For making simplified form, each figure only schematically show part related to the present invention, they
Do not represent its practical structures as product.It addition, so that simplified form readily appreciates, in some figure
There are the parts of identical structure or function, only symbolically depict one of them, or only marked wherein
One.In this article, " one " not only represents " only this ", it is also possible to represent the feelings of " more than one "
Shape.
In embodiments of the invention one, the vertical current wet type electricity being circular with reference to the cross section shown in Fig. 1-5 removes
Dirt device, vertical current wet electrical dust precipitator includes smoke inlet section 1, electric field section 2, exhanst gas outlet section 3, electric field
Including multiple electric field subregion in being provided with positive plate 4 and cathode line, and electric field section 2 in section 2, each electric field divides
Multiple positive plate lower ends 402 in district are provided with the water leg 6 being connected.It is provided with in vertical current wet electrical dust precipitator
Carry effect device, i.e. affect the inner member of air flow method, specifically include one layer of airflow uniform distribution plate 5, be located at anode
Choked flow ring flat-plate 9 at plate upper end 401 and spoiler (the V-arrangement spoiler 10 in figure), and it is arranged on sun
Water conservancy diversion ring flat-plate 8 below pole plate 4 and the tank 7 that confluxes being arranged on positive plate lower end 402.Wherein, air-flow
Uniform board 5 is arranged at the smoke inlet section 1 of vertical current wet electrical dust precipitator, and is used for guiding flue gas uniform
Flow through electric field section 2.Choked flow ring flat-plate 9 is arranged at the circular passage 12 between electric field Duan Yuta wall, and stops
Flue gas passes through at this circular passage；V-arrangement spoiler 10 is arranged at adjacent electric field subregion septal pathways 11
At region, and stop that flue gas passes through at this passage；The outer shroud of water conservancy diversion ring flat-plate 8 and vertical current wet-esp
The tower wall of device connects, and interior hoop tower body center position extends, and makes the flue gas at tower wall converge in the middle part of tower body
Poly-；The tank 7 that confluxes is arranged at adjacent electric field subregion septal pathways 11 region, and stops that flue gas is from this
Pass through at passage, and the tank 7 that confluxes is connected with water leg 6.
In the prior art, electric cleaner is entered when the flue gas smoke inlet section from wet electrical dust precipitator bottom
After, due to the impact of reducer (needing through expanding part from gas approach to electric field section), electricity removes
Airflow uniform distribution in dirt device is poor, by numerical simulation found that air flow method equal in electric cleaner
Root value is about 0.6.For ensureing the efficiency of dust collection of electric cleaner, as shown in Figure 1, 2, at smoke inlet
Duan Zengshe airflow uniform distribution plate 5.
After setting up airflow uniform distribution plate 5 as shown in Figure 3 in entrance reducer, flue gas is from smoke inlet section 1
By airflow uniform distribution plate 5, in electric cleaner, the root-mean-square value of air flow method can reach about 0.10, sets up gas
After stream uniform board 5, the Flow Field Distribution in electric cleaner is substantially optimized.In figure, airflow uniform distribution plate 5 is many
Orifice plate, percent opening span is 40%～60%, and the structure of perforate is square opening.As shown in Figure 3,
Higher near the percent opening of the airflow uniform distribution plate 5 in Ta Bi region, it is gradually reduced to tower center the most successively.Figure
Shown in percent opening from 60% dropping to 55%, again to 50%, again to 45%, selected by this variation pattern
A kind of embodiment of open porosity value, actual application is not limited thereto.
As shown in Fig. 1,2,4, general vertical current electric cleaner, in view of electric discharge safety, all can allow negative electrode system
Certain safe distance is kept between system (electric field section) and tower wall；Remove simultaneously for the electricity processing exhaust gas volumn bigger
Dirt device, all can consider switched-mode power supply, for ensureing the electric discharge safety of cathod system, cathod system and cathod system
Between also can reserve certain safe distance.The holding of cathod system safe distance, can cause adjacent electricity unavoidably
The partial fume of circular passage 12 between subregion septal pathways 11, and electric field Duan Yuta wall, the field is not at electric field
Effective dust in the range of, as taken no action to form short stream, cause part ash-laden gas to escape, fall
Low efficiency of dust collection.
For ensureing the efficiency of dust collection of electric field and improving the efficiency of dust collection of electric field further, as shown in Fig. 1,2,5
Set up, in the positive plate lower end 402 of Electric Field in ESP section 2, the tank 7 that confluxes, set up below positive plate 4
Water conservancy diversion ring flat-plate 8, sets up choked flow ring flat-plate 9, V-arrangement spoiler 10 in positive plate upper end 401.From electric cleaner
Smoke inlet section 1, by the flue gas after airflow uniform distribution plate 5, enters Electric Field in ESP section 2, at positive plate
Under the effect of lower end 402 water conservancy diversion ring flat-plate 8, the flue gas of the circular passage 12 between electric field Duan Yuta wall is led
Stream ring flat-plate changes direction, close in the middle part of electric cleaner, makes the circular passage between entrance electric field Duan Yuta wall
The flue gas in 12 regions reduces；The tank 7 that simultaneously will conflux is arranged on electric field by stages, positive plate lower end 402 every logical
Below road 11, make the flue gas flowed cannot escape from electric field subregion septal pathways 11, and arrived in both sides electricity
In；Choked flow ring flat-plate 9 is set up near Ta Bi region further, it is ensured that electric field in electric field positive plate upper end 401
The flue gas at circular passage 12 between Duan Yuta wall cannot form short stream, limits and flows flue gas from this region
Pass through；V-arrangement choked flow is set up further above electric field positive plate upper end 401 electric field subregion septal pathways 11
Plate 10, it is ensured that the short stream of flue gas cannot be formed in electric field subregion septal pathways 11, limit flow flue gas from
This region is passed through.
In embodiments of the invention two, remove with reference to the vertical current wet type electricity that the cross section shown in Fig. 6-10 is rectangle
Dirt device, vertical current wet electrical dust precipitator includes smoke inlet section 1, electric field section 2, exhanst gas outlet section 3, electric field
Including multiple electric field subregion in being provided with positive plate 4 and cathode line, and electric field section 2 in section 2, each electric field divides
Multiple positive plate lower ends 402 in district are provided with the water leg 6 being connected.It is provided with in vertical current wet electrical dust precipitator
Carry effect device, i.e. affect the inner member of air flow method, specifically include one layer of airflow uniform distribution plate 5, be located at anode
Choked flow ring flat-plate 9 at plate upper end 401 and spoiler (the V-arrangement spoiler 10 in figure), and it is arranged on sun
Water conservancy diversion ring flat-plate 8 below pole plate 4 and the tank 7 that confluxes being arranged on positive plate lower end 402.Wherein, air-flow
Uniform board 5 is arranged at the smoke inlet section 1 of vertical current wet electrical dust precipitator, and is used for guiding flue gas uniform
Flow through electric field section 2.Choked flow ring flat-plate 9 is arranged at the circular passage 12 between electric field Duan Yuta wall, and stops
Flue gas passes through at this circular passage；V-arrangement spoiler 10 is arranged at adjacent electric field subregion septal pathways 11
At region, and stop that flue gas passes through at this passage；The outer shroud of water conservancy diversion ring flat-plate 8 and vertical current wet-esp
The tower wall of device connects, and interior hoop tower body center position extends, and makes the flue gas at tower wall converge in the middle part of tower body
Poly-；The tank 7 that confluxes is arranged at adjacent electric field subregion septal pathways 11 region, and stops that flue gas is from this
Pass through at passage, and the tank 7 that confluxes is connected with water leg 6.
As shown in Figure 6,7, flue gas enters electric cleaner from bottom electric cleaner smoke inlet section 1, due to
The impact of reducer, in electric cleaner, airflow uniform distribution is poor, by numerical simulation found that electricity removes
In dirt device, the root-mean-square value of air flow method is about 0.6, for ensureing that the efficiency of dust collection of electric cleaner need to be at entrance
Set up airflow uniform distribution plate 5.
After the airflow uniform distribution plate 5 that the junction of smoke inlet Yu electric field section 2 is set up as shown in Figure 8, flue gas
From entrance by airflow uniform distribution plate 5, in electric cleaner, the root-mean-square value of air flow method can reach about 0.07,
After setting up airflow uniform distribution plate 5, the Flow Field Distribution in electric cleaner is substantially optimized.Airflow uniform distribution plate in figure
5 is porous plate, and percent opening span is 40%～50%, and the structure in the hole offered can use square opening.
With reference to Fig. 8, airflow uniform distribution plate can be assembled by the plate of polylith difference percent opening；Such as in figure, near sun
Airflow uniform distribution plate at the region of a pair tower wall (the tower wall on left side and right side) pointed by the end of pole plate is opened
Porosity minimum (40%), the airflow uniform distribution packing free ratio of tower body central area takes second place (45%), other regions
Airflow uniform distribution packing free ratio the highest (50%).
As shown in Fig. 6,7,9,10, general vertical current electric cleaner, in view of electric discharge safety, all can make the moon
Certain safe distance is kept between electrode systems and tower wall；The electric cleaner bigger simultaneously for processing exhaust gas volumn,
Switched-mode power supply will be considered, for ensureing the electric discharge safety of cathod system, between the cathod system in adjacent electric field district also
Certain safe distance can be reserved；The holding of cathod system safe distance, can cause this electric field by stages unavoidably
The partial fume of the circular passage 12 between passage 11, and electric field Duan Yuta wall is not at the effective dust of electric field
In the range of, as taken no action to form short stream, cause part ash-laden gas to escape, reduce efficiency of dust collection.
For ensureing the efficiency of dust collection of electric field and improving the efficiency of dust collection of electric field further, such as Fig. 6,7,10 institute
Show and set up the tank 7 that confluxes in Electric Field in ESP section 2 positive plate lower end 402, in the increasing of the lower section of positive plate 4
If water conservancy diversion ring flat-plate 8, set up choked flow ring flat-plate 9, V-arrangement spoiler 10 in positive plate upper end 401.From electric precipitation
Device smoke inlet section 1, by the flue gas after airflow uniform distribution plate 5, enters Electric Field in ESP section 2, at anode
Under the effect of plate lower end 402 water conservancy diversion ring flat-plate 8, the flue gas quilt of the circular passage 12 between electric field Duan Yuta wall
Water conservancy diversion ring flat-plate 8 changes direction, close in the middle part of electric cleaner, makes the annular between entrance electric field Duan Yuta wall
The flue gas of passage 12 reduces；The tank 7 that simultaneously will conflux be arranged on electric field by stages, positive plate lower end 402 every
Below passage 11, make the flue gas flowed cannot escape from subregion septal pathways 11, and arrived in both sides electric field
In；Choked flow is set up in circular passage 12 between the electric field Duan Yuta wall of electric field positive plate upper end 401 further
Ring flat-plate 9, it is ensured that the flue gas of the circular passage 12 between electric field Duan Yuta wall cannot form short stream, limits and flows
Flue gas passes through from this region；Further above electric field positive plate upper end 401 electric field subregion septal pathways 11
Set up V-arrangement spoiler 10, it is ensured that the short stream of flue gas cannot be formed in electric field subregion septal pathways 11, limit
System flows flue gas and passes through from this region.
In above-mentioned two embodiment, wet electrical dust precipitator flue gas all uses bottom in and top out mode but it also may use
Upper entering and lower leaving mode, as upper entering and lower leaving mode, its internal structure has little adjustment.
(1) the airflow uniform distribution plate of deduster entrance, arranges in top reducer need to be changed in position or dedusting
Device entrance and electric field section junction, arrange one or more layers, the distribution of percent opening and percent opening need to adjust, should
Suitable content can be determined by numerical simulation.
(2) deduster choked flow ring flat-plate, V-arrangement spoiler and the guiding gutter that confluxes can keep structure constant, will
Water conservancy diversion ring flat-plate removes, and head tower wall near zone sets up one layer of choked flow ring flat-plate more under the electric field.
It should be noted that above-described embodiment has been merely given as the two kinds of forms becoming percent opening of airflow uniform distribution plate,
In other embodiments, the change percent opening of airflow uniform distribution plate also can be according to the spy of its plane air flow method installed
Property designs the percent opening of uniform board isoplanar zones of different；Described airflow uniform distribution plate can also be by difference
The module of shape assembles, it is achieved modular construction.
It should be noted that in other embodiments, airflow uniform distribution plate may be alternatively provided as multilayer.
It should be noted that V-arrangement spoiler is inverted at the passage area of adjacent described electric field by stages, its
Most advanced and sophisticated upper, and V-arrangement spoiler is the more excellent form of one of spoiler, other embodiments are not limited to this.
Airflow uniform distribution plate is spelled by one or more in annular slab or fanning strip or triangular plate or rectangular slab
Dress forms.
The hole offered on airflow uniform distribution plate is circular or polygon (triangle or rectangle etc.), and the row in this hole
Mode for cloth is equidistant array or equilateral triangle array.
Preferably, choked flow ring flat-plate can be arranged in the following way, its outer shroud and vertical current wet electrical dust precipitator
Tower wall connect, inner ring positive plate outermost with electric field section is connected.And choked flow ring flat-plate can be to be covered in
Above circular passage between electric field section and tower wall.
Preferably, with reference to Fig. 1,2,6,7, water conservancy diversion ring flat-plate 8 is the ring flat-plate being obliquely installed, and outer shroud side
(side being connected with tower wall) is higher than inner ring side, and the angle between water conservancy diversion ring flat-plate and tower wall is 75-80 °.
It should be noted that, above-described embodiment all can independent assortment as required.The above is only this
Bright preferred embodiment, it is noted that for those skilled in the art,
Without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improve and profit
Decorations also should be regarded as protection scope of the present invention.
Claims (10)
1. vertical current wet electrical dust precipitator carry an effect device, described vertical current wet electrical dust precipitator includes cigarette
Gas entrance, electric field section, exhanst gas outlet section, be provided with positive plate and cathode line in described electric field section,
And include multiple electric field subregion, under multiple positive plates of each described electric field subregion in described electric field section
End is provided with the water leg being connected；
It is characterized in that, described in carry effect device include:
At least one of which airflow uniform distribution plate, it is arranged on the smoke inlet section of described vertical current wet electrical dust precipitator,
For guiding flue gas to flow uniformly through described electric field section；
Reducing-flow structure, it choked flow ring flat-plate and spoiler of including being arranged on described positive plate upper end；
Wherein, described choked flow ring flat-plate is arranged at the tower of described electric field section and described vertical current wet electrical dust precipitator
At circular passage between wall, and stop that flue gas passes through at this circular passage；
Described spoiler is arranged at the passage area of adjacent described electric field by stages, and stop flue gas from
Pass through at this passage；
Flow-guiding structure, it includes the water conservancy diversion ring flat-plate being arranged on below described positive plate and is arranged on described anode
The tank that confluxes of plate lower end；
Wherein, the outer shroud of described water conservancy diversion ring flat-plate is connected with the tower wall of described vertical current wet electrical dust precipitator, interior
Hoop tower body center position extends, and makes the flue gas at tower wall converge in the middle part of tower body；
The described tank that confluxes is arranged at the passage area of adjacent described electric field by stages, and stops flue gas
Pass through at this passage, and described in the tank that confluxes be connected with described water leg.
Vertical current wet electrical dust precipitator the most according to claim 1 carry effect device, it is characterised in that:
Described airflow uniform distribution plate is the orifice plate becoming percent opening；
When the tower body of described vertical current wet electrical dust precipitator in the cross section being perpendicular on flue gas flow direction direction for circle
During shape, the percent opening of described airflow uniform distribution plate successively decreases to tower body center at the tower wall of tower body.
Vertical current wet electrical dust precipitator the most according to claim 1 carry effect device, it is characterised in that:
Described airflow uniform distribution plate is the orifice plate becoming percent opening；
When the tower body of described vertical current wet electrical dust precipitator is square in the cross section being perpendicular on flue gas flow direction direction
During shape, described airflow uniform distribution plate can be assembled by the plate of polylith difference percent opening；Near described positive plate
A pair tower wall pointed by end region at airflow uniform distribution packing free ratio minimum, tower body central area
Airflow uniform distribution packing free ratio take second place, the airflow uniform distribution packing free ratio in other regions is the highest.
Vertical current wet electrical dust precipitator the most according to claim 2 carry effect device, it is characterised in that:
Described airflow uniform distribution plate is assembled by one or more in annular slab or fanning strip.
Vertical current wet electrical dust precipitator the most according to claim 3 carry effect device, it is characterised in that:
Described airflow uniform distribution plate is assembled by one or more in triangular plate or rectangular slab.
6. carry effect device according to the vertical current wet electrical dust precipitator described in any one of claim 1-3, its feature
It is:
The hole offered on described airflow uniform distribution plate is circular or polygon, and the arrangement mode in this hole is equidistant
Array.
7. carry effect device according to the vertical current wet electrical dust precipitator described in any one of claim 1-3, its feature
It is:
The outer shroud of described choked flow ring flat-plate is connected with the tower wall of described vertical current wet electrical dust precipitator, described choked flow
The inner ring of ring flat-plate is connected with outermost described positive plate；
Described choked flow ring flat-plate is covered in the top of described circular passage.
8. carry effect device according to the vertical current wet electrical dust precipitator described in any one of claim 1-3, its feature
It is:
Described spoiler is V-arrangement spoiler, and described V-arrangement spoiler is inverted in adjacent described electric field and divides
At interval passage area, its tip is upper.
9. carry effect device according to the vertical current wet electrical dust precipitator described in any one of claim 1-3, its feature
It is:
Described water conservancy diversion ring flat-plate is the ring flat-plate being obliquely installed, and outer shroud side is higher than inner ring side.
Vertical current wet electrical dust precipitator the most according to claim 9 carry effect device, it is characterised in that:
Angle between described water conservancy diversion ring flat-plate and tower wall is 75-80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838739.XA CN104525374B (en) | 2014-12-26 | 2014-12-26 | Vertical current wet electrical dust precipitator carry effect device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410838739.XA CN104525374B (en) | 2014-12-26 | 2014-12-26 | Vertical current wet electrical dust precipitator carry effect device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104525374A CN104525374A (en) | 2015-04-22 |
| CN104525374B true CN104525374B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410838739.XA Active CN104525374B (en) | 2014-12-26 | 2014-12-26 | Vertical current wet electrical dust precipitator carry effect device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888964A (en) * | 2015-06-24 | 2015-09-09 | 河北安维环境工程有限公司 | Wet-type high-pressure water-film electrostatic precipitator |
| CN105498971B (en) * | 2016-01-06 | 2018-02-09 | 上海超清环保科技有限公司 | Air flow method system applied to wet cottrell |
| CN106269254A (en) * | 2016-10-29 | 2017-01-04 | 无锡华光新动力环保科技股份有限公司 | A kind of gas-liquid separation device for wet electric precipitation |
| CN109261357A (en) * | 2018-10-17 | 2019-01-25 | 浙江德创环保科技股份有限公司 | A kind of wet electrical dust precipitator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB467823A (en) * | 1935-12-19 | 1937-06-21 | Whessoe Foundry And Engineerin | Improvements in or relating to the electrical precipitation of suspended particles from gases |
| GB676638A (en) * | 1948-08-18 | 1952-07-30 | Research Corp | Improvements in or relating to electrical precipitators |
| CN102626672B (en) * | 2012-04-13 | 2014-09-17 | 双盾环境科技有限公司 | Improved electroconductive glass fiber reinforced plastic electric demister |
| CN102728469B (en) * | 2012-07-11 | 2015-05-20 | 福建龙净环保股份有限公司 | Vertical type wet process electric dust collector flow field optimizing device |
| CN203764408U (en) * | 2014-04-15 | 2014-08-13 | 刘海丽 | Wet multi-pipe dust removal device |
| CN204396165U (en) * | 2014-12-26 | 2015-06-17 | 上海龙净环保科技工程有限公司 | Vertical current wet electrical dust precipitator carry effect device |
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