CN206296076U - Wet electrical dust precipitator - Google Patents
Wet electrical dust precipitator Download PDFInfo
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- CN206296076U CN206296076U CN201621311437.8U CN201621311437U CN206296076U CN 206296076 U CN206296076 U CN 206296076U CN 201621311437 U CN201621311437 U CN 201621311437U CN 206296076 U CN206296076 U CN 206296076U
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- electrode
- dust
- dust collecting
- wet electrical
- collecting electrode
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Abstract
The utility model wet electrical dust precipitator is related to a kind of equipment for environmental pollution improvement.The utility model wet electrical dust precipitator, including housing, smoke inlet is offered on the housing, exhanst gas outlet, dust collecting electrode is provided with the housing, discharge electrode, high frequency electric source is connected with the discharge electrode, rinse-system is provided with the housing, the tube structure of the dust extremely both ends open, the discharge electrode is arranged on the center of the dust collecting electrode and extends along its length, the wall of the dust collecting electrode is concavo-convex curved surface staggeredly, the dust collecting electrode material selection polyacrylonitrile cloth film, electrode needle is connected with the discharge electrode, the discharge electrode material selection AL6XN alloy materials.Its purpose is to provide the wet electrical dust precipitator that a kind of anticorrosive, dust catching efficiency is high, discharge effect is good, maintenance cost is low.
Description
Technical field
The utility model is related to environmental pollution improvement to equip field, is related to a kind of flue gas ash removal technology, more particularly to one
Plant the wet electrical dust precipitator of fine particle treatment in flue gas.
Background technology
《Fossil-fuel power plant atmospheric pollutant emission standard》(GB13223-2011) atmosphere pollution of Yan Liao coal-burning power plants is further added
The emission limit of thing, wherein priority control area, it is desirable to soot emissions limit value 20mg/m3.Because environmental carrying capacity is limited, Jiangsu
Relevant policies are put into effect in the ground such as province, Zhejiang Province, Shanxi Province, Guangzhou, it is desirable to arranged with reference to gas turbine group pollutant coal-burning power plant
Put standard limited value, i.e., under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide SO2, nitrogen oxide NOx concentration of emission respectively not
Higher than 5mg/m3、35mg/m3、50mg/m3。
National Development and Reform Committee, Environmental Protection Department and ministries and commissions of National Energy Board 3 combine in September, 2014 and issue《Coal electricity energy-conservation
Emission reduction is upgraded and transformation action plan (2014~the year two thousand twenty)》, it is desirable to the newly-built coal unit discharge in eastern region basically reaches combustion
Under the conditions of turbine unit pollutant emission limit, i.e. benchmark oxygen content 6%, flue dust, sulfur dioxide SO2, nitrogen oxide NOx discharge
Concentration is respectively no higher than 10mg/m3、35mg/m3、50mg/m3, requirement is also proposed respectively to middle part and west area.
Subregion and urban atmosphere haze scene are prominent in recent years, and many regional discharge of major pollutant amounts exceed environment
Capacity, governments at all levels put into effect multinomial policies and measures successively, and make great efforts improvement fine particle PM2.5, improves air quality.Wet type
Effect of the electric cleaner in terms of meeting low emission, administering PM2.5 obtains consistent accreditation in the industry, and thermoelectricity is encouraged in Chinese Ministry of Environmental Protection's dispatch
Enterprise controls the content of combined pollutant in air using new technologies such as wet-esps.
Existing wet electrical dust precipitator, application reference publication No. is the patent application document of the A of CN 103301944, including
Housing, is provided with air inlet, gas outlet and ash bucket on housing, be provided with housing discharge electrode, dust collecting electrode, rinse spray system and
Dedusting spray system, air inlet is located at case top with gas outlet, and discharge electrode is suspended to the channel center of dust collecting electrode.It is existing wet
The dust collecting electrode and discharge electrode simple structure of formula electric cleaner, corrosion resistance are poor, and ionization dust removing effects are general, and dust is easy to out
Existing dust accretions, when dustiness is higher in flue gas, dust removal efficiency does not reach national requirements, and repair and maintenance is costly.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of anticorrosive, dust catching efficiency is high, discharge effect is good, safeguards
The low wet electrical dust precipitator of expense.
The utility model wet electrical dust precipitator, including housing, offer smoke inlet, exhanst gas outlet, institute on the housing
State and be provided with housing dust collecting electrode, discharge electrode, high frequency electric source is connected with the discharge electrode, rinse-system is provided with the housing,
The tube structure of the dust extremely both ends open, the discharge electrode is arranged on the center of the dust collecting electrode and along its length
Extend, the wall of the dust collecting electrode is concavo-convex curved surface staggeredly, the dust collecting electrode material selection polyacrylonitrile cloth film, the electric discharge
Electrode needle, the discharge electrode material selection AL6XN alloy materials are connected with extremely.
The utility model wet electrical dust precipitator, wherein the dust collecting electrode is set to curved surface wall combines the polygon to be formed cylinder
Body, the two neighboring Polygonal barrel is provided with common edge.
The utility model wet electrical dust precipitator, wherein the Polygonal barrel is set to equilateral triangle, regular hexagon, positive eight side
In shape any one.
The utility model wet electrical dust precipitator, wherein the dust collecting electrode is set to curved surface wall combines the cylindrical tube to be formed
Body, the adjacent cylindrical tube is separate, and multiple cylindrical tubes are in equilateral triangle or square arrangement.
The utility model wet electrical dust precipitator, wherein the discharge electrode includes the support column of the support electrode needle, it is described
Connecting plate is connected with support column, the electrode needle is arranged on the connecting plate, connecting plate spiral shell on the support column
Rotation extends.
The utility model wet electrical dust precipitator, wherein the electrode needle is detachably connected on the connecting plate.
The utility model wet electrical dust precipitator, wherein the spacing of the two neighboring electrode needle is 100mm-800mm.
The utility model wet electrical dust precipitator, wherein the electrode needle is set to fishbone type or prickle shape.
The utility model wet electrical dust precipitator difference from prior art is：In the utility model wet electrical dust precipitator
The wall structure of dust collecting electrode is set to concavo-convex curved-surface structure staggeredly, increases the dust-collecting area of dust collecting electrode, improves dust collecting electrode
Dust catching efficiency；Discharge electrode is provided with electrode needle, and the setting of electrode needle ensure that the stability and voltage of the discharge voltage of discharge electrode
Be uniformly distributed, it is ensured that the uniform high-efficiency of dust removing effects；Dust collecting electrode material selection polyacrylonitrile cloth film, discharge electrode is selected
AL6XN alloy materials, discharge electrode and dust collecting electrode select wear-resistant, corrosion-resistant, less scaling new material, optimize discharge electrode and
The material and structure of dust collecting electrode；The polyacrylonitrile cloth membrane material of dust collecting electrode has capillarity, in dust collecting electrode when helping to spray
Form liquid film, it is ensured that dust can flow out with liquid film, solve the problems, such as that dust is piled up in dust collecting electrode, it is ensured that efficiency of dust collection, and
The cleaning of dust collecting electrode material is simple, can save equipment maintenance cost；The material anti-corrosion anti-abrasion damage performance of discharge electrode is good, and table
Face is smooth to be difficult to tie dirt, it is possible to increase efficiency of dust collection；Discharge electrode and dust collecting electrode after optimization can widely be applied to various wet
Formula electric cleaner, more stable efficiency of dust collection higher is played compared with other discharge electrodes and dust collecting electrode in wet electrical dust precipitator, is realized
More reliable, cost performance function higher, comprehensive solves the low problem of anticorrosive problem, efficiency of dust collection, dust in dust
The problem of pole accumulation, equipment maintenance cost problem high.
The utility model wet electrical dust precipitator is described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model wet electrical dust precipitator；
Fig. 2 is the schematic diagram of the dust collecting electrode constructive embodiment one of the utility model wet electrical dust precipitator；
Fig. 3 is the schematic diagram of the dust collecting electrode constructive embodiment two of the utility model wet electrical dust precipitator.
Accompanying drawing is marked：1st, ash bucket；2nd, housing；3rd, dust collecting electrode；4th, discharge electrode；5th, high frequency electric source；6th, smoke inlet；7th, rinse
System；8th, exhanst gas outlet；9th, electrode needle.
Specific embodiment
Embodiment one：As shown in figure 1, the utility model wet electrical dust precipitator, including housing 2, offer flue gas on housing 2
Entrance 6, exhanst gas outlet 8, flue gas enter in housing 2 along smoke inlet 6, and dust collecting electrode 3, discharge electrode 4, dust collecting electrode 3 are provided with housing 2
It is the tube structure of both ends open, is connected with high frequency electric source 5 on discharge electrode 4, the service voltage of high frequency electric source 5, discharge electrode 4 is to surrounding
Release voltage, the gas in housing 2 is ionized in the presence of voltage, charged ion is produced, in charged ion and flue gas
Dust is combined, and the dust in flue gas is moved in the presence of charged ion to dust collecting electrode 3, and dust collecting electrode 3 is collected to dust, real
The removing to dust in flue gas is showed.
Rinse-system 7 is provided with housing 2, rinse-system 7 is that WESP sprays water filtering system, is connected certainly on rinse-system 7
Dynamic control module, automatic control module controls the timing of rinse-system 7 to be sprayed in housing 2, and the time of spray considers flue gas
It is configured after the conditions such as middle dust content, treatment quantity, rinse-system 7 washes away dust collecting electrode 3 to the water sprayed in housing 2
Wall, clears up product knot in the dust of dust collecting electrode 3, prevents dust accumulation and influences efficiency of dust collection.Rinse-system 7 is to dust
Pole 3 is sprayed, and liquid film is formed on the surface of dust collecting electrode 3, and when dust movement is to 3 surface of dust collecting electrode, dust is with thin film drainage, housing 2
On be connected with ash bucket 1, dust flows into ash bucket 1 with liquid film, and dust and liquid film form mud in ash bucket 1, and subsequent handling is to ash bucket 1
In mud be further processed；Flue gas after purification is discharged along exhanst gas outlet 8, completes the dust-removing process of flue gas.
Dust collecting electrode 3 is the tube structure of both ends open, and discharge electrode 4 is arranged on the center of dust collecting electrode 3 and along its length
Extend, the material selection polyacrylonitrile cloth film of dust collecting electrode 3.Dust collecting electrode 3 uses polyacrylonitrile cloth film, power supply situation and conventional metal
Plate is identical, but than the light weight 60%~70% of metallic plate, can mitigate the gross mass of equipment, the pressure that mitigation equipment is born, side
Just the installation of equipment, contributes to lifting to be provided with the life-span；Polyacrylonitrile cloth film has capillarity, and surface hangs with liquid film, and liquid film is thick
Degree controllable, the flushing process to dust is easier, and improves efficiency of dust collection；Dust is rinsed with liquid film, dust will not occur and exist
Dust collecting electrode 3 piles up and produces the phenomenon of shelf depreciation, it is to avoid shelf depreciation, it is ensured that the dust catching efficiency of unit area；And gather
Acrylonitrile cloth film is cheap, saves equipment cost, improves economic worth.
Be connected with electrode needle 9, the material selection AL6XN alloy materials of discharge electrode 4 on discharge electrode 4, AL6XN alloy materials be containing
The austenitic stainless steel of molybdenum 6%, good conductivity, discharge effect is good, improves efficiency of dust collection；Anticorrosive anti-wear performance is good, no
Need often to safeguard and overhaul, follow-up maintenance work is simple；And less scaling and dust, it is ensured that the stabilization fortune of dust removal process
OK, service life and efficiency of dust collection are improve.Discharge electrode 4 and the long-time of dust collecting electrode 3 greatly reduce operation without fouling and dust
Maintenance and Repair cost, improves equipment availability.
The wall of dust collecting electrode 3 is concavo-convex curved surface staggeredly, and concavo-convex curved surface staggeredly increases the surface area of dust collecting electrode 3, gives
Dust provides enough areas and is adhered to, and is more beneficial for dust and accumulates knot in dust collecting electrode 3, prevents dust from being piled up in dust collecting electrode 3, has
Beneficial to raising efficiency of dust collection.
As shown in Fig. 2 dust collecting electrode 3 is set to curved surface wall combines the Polygonal barrel to be formed, two neighboring Polygonal barrel
It is provided with common edge.The wall of dust collecting electrode 3 is concavo-convex staggeredly, and two neighboring Polygonal barrel shares a curved surface wall, and one polygon
Shape cylinder uses the concave surface of same curved surface wall, and another Polygonal barrel uses the convex surface of curved surface wall.Concave-convex curved surface wall
Structure can increase the surface area of dust collecting electrode 3, moreover it is possible to save space, save material cost, reduce occupation area of equipment.It is polygon
Shape cylinder is set to any one in equilateral triangle, regular hexagon, octagon.Polygonal barrel is regular polygon structure, side
Just design calculates the design with construction technology, cost-effective, and regular polygon uniform force, reduces going out for problem of stress concentration
It is existing, it is ensured that the stability of equipment overall structure.
Discharge electrode 4 includes the support column of support electrode needle 9, and connecting plate is connected with support column, and electrode needle 9 is arranged on connection
On plate, connecting plate is extended spirally on the support columns.Connecting plate is extended spirally on the support columns, and connecting plate rotates on the support columns,
Electrode needle 9 is connected on connecting plate, facilitates electrode needle 9 to be uniformly distributed in all directions, it is ensured that Electric Field Distribution is uniform.
Electrode needle 9 is detachably connected on connecting plate, and mounting hole is offered on connecting plate, and fixation is connected with electrode needle 9
Bolt, fixing bolt is tightened on connecting plate.When breakage occurs in electrode needle 9 in installation process, dismounting and change can be carried out.
The spacing of two neighboring electrode needle 9 is 100mm-800mm, and the spacing between electrode needle 9 contains according to dust in flue gas
The flue gas flow of amount and equipment is designed, and installs electrode needle 9 in mounting hole according to actual needs, both can guarantee that dedusting was imitated
Rate, can save material again.Electrode needle 9 is set to fishbone type or prickle shape, the simple structure of fishbone type, low cost；Prickle shape can be with
From octadentate prickle shape, octadentate prickle shape structure discharging efficiency is high, good dedusting effect.
Embodiment two：As shown in figure 3, being the structure of dust collecting electrode 3 with the difference of embodiment one, dust collecting electrode 3 is set to
Curved surface wall combines the cylindrical tube to be formed, and adjacent column shape cylinder is separate, and multiple cylindrical tubes are in equilateral triangle
Or square arrangement.Curved surface wall is set to concavo-convex structure staggeredly, increases the contact area of dust collecting electrode 3, improves dedusting effect
Rate.Separate cylindrical tube structure, weakens the electric discharge interference between adjacent column shape cylinder, is conducive to dust in collection
Dirt pole 3 is adhered to and is rinsed.Multiple cylindrical tubes are in equilateral triangle or square arrangement, the arrangement mode of equilateral triangle, cylinder
The arrangement of shape cylinder is compact, and under equal steric requirements, arrangement is tight, and quantity is more, advantageously ensures that dust-collecting area；Just
Square arrangement mode simple structure, convenient processing.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of the utility model claims determination
In the range of.
Claims (8)
1. a kind of wet electrical dust precipitator, it is characterised in that：Including housing (2), offered on the housing (2) smoke inlet (6),
Dust collecting electrode (3), discharge electrode (4) are provided with exhanst gas outlet (8), the housing (2), high-frequency electrical is connected with the discharge electrode (4)
Rinse-system (7) is provided with source (5), the housing (2), the dust collecting electrode (3) is the tube structure of both ends open, the electric discharge
Pole (4) is arranged on the center of the dust collecting electrode (3) and extends along its length, and the wall of the dust collecting electrode (3) is concavo-convex friendship
Wrong curved surface, dust collecting electrode (3) the material selection polyacrylonitrile cloth film is connected with electrode needle (9), institute on the discharge electrode (4)
State discharge electrode (4) material selection AL6XN alloy materials.
2. wet electrical dust precipitator according to claim 1, it is characterised in that：The dust collecting electrode (3) is set to curved surface wall group
The Polygonal barrel for being formed is closed, the two neighboring Polygonal barrel is provided with common edge.
3. wet electrical dust precipitator according to claim 2, it is characterised in that：The Polygonal barrel be set to equilateral triangle,
In regular hexagon, octagon any one.
4. wet electrical dust precipitator according to claim 1, it is characterised in that：The dust collecting electrode (3) is set to curved surface wall group
Close the cylindrical tube for being formed, the adjacent cylindrical tube is separate, multiple cylindrical tubes in equilateral triangle or
Square arrangement.
5. wet electrical dust precipitator according to claim 1, it is characterised in that：The discharge electrode (4) is including supporting the electricity
The support column of pole pin (9), is connected with connecting plate on the support column, the electrode needle (9) is arranged on the connecting plate, described
Connecting plate is extended spirally on the support column.
6. wet electrical dust precipitator according to claim 5, it is characterised in that：The electrode needle (9) is detachably connected on institute
State on connecting plate.
7. the wet electrical dust precipitator according to claim 1,5 or 6, it is characterised in that：The two neighboring electrode needle (9)
Spacing is 100mm-800mm.
8. wet electrical dust precipitator according to claim 1, it is characterised in that：The electrode needle (9) is set to fishbone type or awns
Thorn shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621311437.8U CN206296076U (en) | 2016-11-30 | 2016-11-30 | Wet electrical dust precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621311437.8U CN206296076U (en) | 2016-11-30 | 2016-11-30 | Wet electrical dust precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206296076U true CN206296076U (en) | 2017-07-04 |
Family
ID=59211963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621311437.8U Active CN206296076U (en) | 2016-11-30 | 2016-11-30 | Wet electrical dust precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206296076U (en) |
-
2016
- 2016-11-30 CN CN201621311437.8U patent/CN206296076U/en active Active
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