CN204247379U - A kind of vertical wide-space wet electrical dust precipitator - Google Patents
A kind of vertical wide-space wet electrical dust precipitator Download PDFInfo
- Publication number
- CN204247379U CN204247379U CN201420701771.9U CN201420701771U CN204247379U CN 204247379 U CN204247379 U CN 204247379U CN 201420701771 U CN201420701771 U CN 201420701771U CN 204247379 U CN204247379 U CN 204247379U
- Authority
- CN
- China
- Prior art keywords
- wet electrical
- dust
- housing
- vertical
- discharge plume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of vertical wide-space wet electrical dust precipitator, it comprises housing and bottom-uply sets gradually airflow-distribution board, negative electrode fixed frame, several dust leg, several washer jet in the housing, gas feed is arranged on the sidewall of the housing below airflow-distribution board, and gas vent is arranged on the top of housing; Wherein, dust leg is square tube, and the length of side is 350mm ~ 600mm, and length is 2000 ~ 6000mm; The tube bank of several dust leg composition control of dust; Be provided with discharge plume in each dust leg, this discharge plume is fixed by negative electrode fixed frame; Described negative electrode fixed frame is connected with the high voltage source outside housing.The utility model structure is simple, and floor space is little, high to the removal efficiency of minuteness particle, saves investment and energy consumption.
Description
Technical field
The utility model relates to a kind of vertical wide-space wet electrical dust precipitator, belongs to technical field of air pollution control.
Background technology
At present, coal burning flue gas desulfurization mainly adopts Wet Flue Gas Desulfurization Technique.In wet desulfurization system runs, create SO
3acid mist, slurry drops aerosol, or the PM such as ammonia salt aerosol
2.5, serious harm is caused to health and environment.Wet electrical dust precipitator technology, as fire coal boiler fume end high efficiency composition pollution control technology, effectively can trap these fine particles (PM
2.5dust, SO
3acid mist, aerosol) and heavy metal, effectively solve landscape pollution problems such as " gypsum rains ".
But existing wet electrical dust precipitator is generally 250 ~ 350mm with die opening, and secondary voltage is at 45 ~ 80kV.Narrow die opening limits the injection of higher working voltage to a certain extent, causes minuteness particle, and especially the charge capacity of submicron particle is limited; Meanwhile, under narrow die opening condition, polar board surface uniformity of current density is poor, and ion wind perturbation action is comparatively strong, causes the uniformity of polar board surface liquid film to be affected; Thus, generally, under thin space condition, the removal ability of wet electrical dust precipitator to minuteness particle especially submicron particle is limited.In addition, adopt thin space wet electrical dust precipitator, the cost of steel (or fiberglass) consumption and process unit-gas is also higher.
Utility model content
The purpose of this utility model is to provide a kind of vertical wide-space wet electrical dust precipitator, effectively can improve the removal efficiency to minuteness particle in wet-method desulfurized fume especially submicron particle, reduce investment outlay and energy consumption.
For achieving the above object, the utility model is by the following technical solutions:
A kind of vertical wide-space wet electrical dust precipitator, it comprises housing and bottom-uply sets gradually airflow-distribution board, negative electrode fixed frame, several dust leg, several washer jet in the housing, gas feed is arranged on the sidewall of the housing below airflow-distribution board, and gas vent is arranged on the top of housing; Wherein, dust leg is square tube, and the length of side is 350mm ~ 600mm, and length is 2000 ~ 6000mm; The tube bank of several dust leg composition control of dust; Be provided with discharge plume in each dust leg, this discharge plume is fixed by negative electrode fixed frame; Described negative electrode fixed frame is connected with the high voltage source outside housing.
Preferably, the trunk of described discharge plume is square tube or pipe, and its inscribed circle diameter or internal diameter are 10 ~ 40mm, and the trunk outer surface of described discharge plume is evenly arranged the sawtooth vertical with discharge plume trunk or fish-bone line.Described discharge plume has been evenly arranged 4 sawtooth or fish-bone line at the trunk outer surface being positioned at same cross section.In described discharge plume, adjacent saw-tooth distance that is most advanced and sophisticated or fish-bone line tip is 10 ~ 40mm, and serrated tip or fish-bone line distance that is most advanced and sophisticated and discharge electrode trunk outer surface are 5 ~ 40mm.Most advanced and sophisticated corresponding to the dust leg inner surface of each serrated tip of described discharge plume or fish-bone line is vertical.
Preferably, described airflow-distribution board arranges the structure of vertical baffle under adopting porous plate, the number of vertical baffle is 3 ~ 5, height corresponding increase with the increase from gas access distance of vertical baffle.For gas flow load in each dust leg of uniform distribution more, 2 layers of airflow-distribution board can be set above gas access.
Preferably, for strengthening the ash-removal effect on dust leg surface, described washer jet is arranged in directly over each dust leg central axis.
The beneficial effects of the utility model are:
(1) the utility model adopts wide die opening structure, can improve wet electrical dust precipitator working voltage, and secondary voltage can reach 80kV ~ 120kV, strengthens minuteness particle, especially the charge capacity of submicron particle; Near high voltage discharge electrode, ion wind strengthens simultaneously, improves the migration velocity of charged minuteness particle; Under wide-space condition, polar board surface uniformity of current density improves, and the effect of plate surface ion wind disturbance is more weak, less on the uniformity impact of polar board surface liquid film, and then improves arresting efficiency.
(2) the utility model adopts four sides sawtooth or four sides fishbone discharge plume, can improve electric current per unit length and uniformity thereof; The discharge electrode adopting square dust leg to be combined with four sides discharge plume joins form, improves the uniformity of dust leg internal electric field distribution, improves in dust leg the effective rate of utilization in face of gathering dust.In addition, adopt four sides discharge plume, solid and reliable, mechanical strength is large, not easily breaks and goes offline.
(3) airflow-distribution board described in the utility model, can distribute by optimization airflow, gas flow load in each dust leg of uniform distribution, traffic load deviation is not more than 10%.The utility model arranges a nozzle by corresponding directly over each dust leg, effectively can strengthen the deashing ability on dust leg surface, prevent dust leg inner surface dust stratification, fouling.
(4) compared with traditional wet electrostatic precipitation technology, the utility model can strengthen the removal efficiency to minuteness particle; Floor space is little, and specific dust collection area is less than 20m
2/ m
3/ s, product steel (or fiberglass) consumption reduces more than 30%.
Accompanying drawing explanation
Fig. 1 is the structural representation of the vertical wide-space wet electrical dust precipitator of the utility model;
Fig. 2 is the structural representation of control of dust tube bank;
Fig. 3 a is the structural representation at four sides sawtooth discharge plume (trunk is square tube);
Fig. 3 b is the structural representation at four sides sawtooth discharge plume (trunk is pipe);
Fig. 4 a is the structural representation at four sides fishbone discharge plume (trunk is square tube);
Fig. 4 b is the structural representation at four sides fishbone discharge plume (trunk is pipe);
Fig. 5 a is the top view after discharge plume (trunk is square tube) combines with dust leg;
Fig. 5 b is the top view after discharge plume (trunk is pipe) combines with dust leg;
Fig. 6 is the structural representation of airflow-distribution board.
Reference numeral:
1 gas feed 2 airflow-distribution board 3 negative electrode fixed frame 4 discharge plume 5 dust leg 7 gas vent 8 washer jet 9 high voltage source 10 liquid circulation pump
Detailed description of the invention
As shown in Figure 1, vertical wide-space wet electrical dust precipitator of the present utility model, comprise housing and bottom-uply set gradually airflow-distribution board 2, negative electrode fixed frame 3, several dust leg 5, several washer jet 8 in the housing, gas feed 1 is arranged on the sidewall of the housing below airflow-distribution board 2, and gas vent 7 is arranged on the top of housing; Wherein, dust leg is square tube, and the length of side is 350mm ~ 600mm, and length is 2000 ~ 6000mm; As shown in Figure 2, several dust leg 5 forms control of dust tube bank, and be provided with discharge plume 4 in each dust leg 5, this discharge plume 4 is fixed by negative electrode fixed frame 3; Negative electrode fixed frame 3 is connected with the high voltage source 9 outside housing.
Discharge plume 4 is four sides sawtooth (as shown in Figure 3 a, 3 b) or four sides fishbone discharge plume (as shown in Fig. 4 a, Fig. 4 b).Wherein, the trunk of discharge plume 4 is square tube or pipe, and its inscribed circle diameter or internal diameter are 10 ~ 40mm.Discharge plume 4 trunk outer surface is evenly arranged the sawtooth vertical with discharge plume trunk or fish-bone line.And be evenly arranged 4 sawtooth or fish-bone line at the trunk outer surface being positioned at same cross section.In discharge plume 4, adjacent saw-tooth distance that is most advanced and sophisticated or fish-bone line tip is 10 ~ 40mm, and serrated tip or fish-bone line distance that is most advanced and sophisticated and discharge electrode trunk outer surface are 5 ~ 40mm.The inner surface vertical (as shown in Fig. 5 a, Fig. 5 b) that each serrated tip of discharge plume 4 or fish-bone line are most advanced and sophisticated corresponding to dust leg 5.
As shown in Figure 6, airflow-distribution board 2 arranges the structure of vertical baffle under adopting porous plate, and the number of vertical baffle is 3 ~ 5, height corresponding increase with the increase from gas access distance of vertical baffle.For gas flow load in each dust leg of uniform distribution more, gas access can be established 2 layers of airflow-distribution board.
In addition, for strengthening the ash-removal effect on dust leg 5 surface, washer jet 8 is arranged in directly over each dust leg 5 central axis.
Utilize the method for above-mentioned utility model purification wet-method desulfurized fume as follows:
After flue gas enters housing by gas feed 1, after airflow-distribution board 2 is uniformly distributed air-flow, enter in dust leg 5, after dust leg 5 inner high voltage electric-field charge, in flue gas, charged solid-state and liquid minuteness particle, collects dust leg 5 inner surface under electric field force effect.The particulate that dust leg 5 inwall is collected, is removed by washer jet 8 periodic cleaning.In this process, working voltage controls at 80kV ~ 120kV, and in dust leg 5, flue gas flow rate controls at 2 ~ 3.5m/s, and the time of staying is at 2 ~ 5s.
Adopt above-mentioned vertical wide-space wet electrical dust precipitator purification wet-method desulfurized fume, be less than 20m than specific collection area
2/ m
3/ s, PM
2.5removal efficiency can reach more than 85%, and concentration of emission is lower than 10mg/m
3.
Claims (8)
1. a vertical wide-space wet electrical dust precipitator, it is characterized in that, it comprises housing and bottom-uply sets gradually airflow-distribution board, negative electrode fixed frame, several dust leg, several washer jet in the housing, gas feed is arranged on the sidewall of the housing below airflow-distribution board, and gas vent is arranged on the top of housing; Wherein, dust leg is square tube, and the length of side is 350mm ~ 600mm, and length is 2000 ~ 6000mm; The tube bank of several dust leg composition control of dust; Be provided with discharge plume in each dust leg, this discharge plume is fixed by negative electrode fixed frame; Described negative electrode fixed frame is connected with the high voltage source outside housing.
2. vertical wide-space wet electrical dust precipitator according to claim 1, it is characterized in that, the trunk of described discharge plume is square tube or pipe, its inscribed circle diameter or internal diameter are 10 ~ 40mm, and the trunk outer surface of described discharge plume is evenly arranged the sawtooth vertical with discharge plume trunk or fish-bone line.
3. vertical wide-space wet electrical dust precipitator according to claim 2, is characterized in that, described discharge plume has been evenly arranged 4 sawtooth or fish-bone line at the trunk outer surface being positioned at same cross section.
4. the vertical wide-space wet electrical dust precipitator according to Claims 2 or 3, it is characterized in that, in described discharge plume, adjacent saw-tooth distance that is most advanced and sophisticated or fish-bone line tip is 10 ~ 40mm, and serrated tip or fish-bone line distance that is most advanced and sophisticated and discharge electrode trunk outer surface are 5 ~ 40mm.
5. the vertical wide-space wet electrical dust precipitator according to Claims 2 or 3, is characterized in that, most advanced and sophisticated corresponding to the dust leg inner surface of each serrated tip of described discharge plume or fish-bone line is vertical.
6. vertical wide-space wet electrical dust precipitator according to claim 1, is characterized in that, described airflow-distribution board arranges the structure of vertical baffle under adopting porous plate, the number of vertical baffle is 3 ~ 5.
7. the vertical wide-space wet electrical dust precipitator according to claim 1 or 6, is characterized in that, described airflow-distribution board is 2 layers.
8. vertical wide-space wet electrical dust precipitator according to claim 1, is characterized in that, described washer jet is arranged in directly over each dust leg central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701771.9U CN204247379U (en) | 2014-11-20 | 2014-11-20 | A kind of vertical wide-space wet electrical dust precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701771.9U CN204247379U (en) | 2014-11-20 | 2014-11-20 | A kind of vertical wide-space wet electrical dust precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204247379U true CN204247379U (en) | 2015-04-08 |
Family
ID=52951734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420701771.9U Expired - Fee Related CN204247379U (en) | 2014-11-20 | 2014-11-20 | A kind of vertical wide-space wet electrical dust precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204247379U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395884A (en) * | 2018-10-25 | 2019-03-01 | 浙江三尼科技有限公司 | A kind of device applied to waste gas purification advanced treating |
| CN109759236A (en) * | 2019-03-04 | 2019-05-17 | 福建龙净环保股份有限公司 | A kind of vertical electric precipitator |
| CN110479486A (en) * | 2019-08-07 | 2019-11-22 | 宁波威霖住宅设施有限公司 | Particulate matter processing auxiliary dust collecting structure before a kind of filter |
| CN112512697A (en) * | 2018-06-22 | 2021-03-16 | 丹尼尔·特布尔 | Device for cleaning a particle-laden gaseous medium |
-
2014
- 2014-11-20 CN CN201420701771.9U patent/CN204247379U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112512697A (en) * | 2018-06-22 | 2021-03-16 | 丹尼尔·特布尔 | Device for cleaning a particle-laden gaseous medium |
| CN109395884A (en) * | 2018-10-25 | 2019-03-01 | 浙江三尼科技有限公司 | A kind of device applied to waste gas purification advanced treating |
| CN109395884B (en) * | 2018-10-25 | 2020-11-10 | 浙江三尼科技有限公司 | Be applied to exhaust purification advanced treatment's device |
| CN109759236A (en) * | 2019-03-04 | 2019-05-17 | 福建龙净环保股份有限公司 | A kind of vertical electric precipitator |
| CN110479486A (en) * | 2019-08-07 | 2019-11-22 | 宁波威霖住宅设施有限公司 | Particulate matter processing auxiliary dust collecting structure before a kind of filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104190543B (en) | A kind of wet electrical dust precipitator and comprise the electric precipitation desulfurizer of this wet electrical dust precipitator | |
| CN204220297U (en) | A kind of wet cottrell | |
| CN103007670B (en) | Electrostatic fabric filter for controlling fine particles PM2.5 and mercury collaborative removal | |
| CN204122244U (en) | A kind of wet electrical dust precipitator and comprise the electric precipitation desulfurizer of this wet electrical dust precipitator | |
| CN204247379U (en) | A kind of vertical wide-space wet electrical dust precipitator | |
| CN104324805A (en) | Method for capturing PM2.5 fine particles through water mist charged coagulation for electric precipitation | |
| CN104384023A (en) | Deep purifying device and method for flue gas of large coal-fired power plant | |
| CN103143444A (en) | Dust collecting polar plate for wet electrostatic dust collection | |
| CN203777884U (en) | Wet type dust removal system | |
| CN205549935U (en) | Wet -type electric precipitation secondary absorption tower | |
| CN203853168U (en) | Device for removing PM2.5 from wet flue gas | |
| CN103721554A (en) | Electric demisting method and device for capturing and collecting fine particulate matters in flue gas generated after wet desulphurization | |
| CN202942963U (en) | Wet-type vibration wire double-pole static condensation combined dust remover | |
| CN108380385B (en) | Electrostatic and inertial coupling efficient dedusting and demisting integrated device and method | |
| CN106731437A (en) | The horizontal anchor type ultra-fine grain coalescence case of double jet type | |
| CN203899752U (en) | Wet type electric dust remover | |
| CN205436015U (en) | Double -deck water conservancy diversion orifice plate of wet -type FRP -electric conduction electric demister | |
| CN103008109B (en) | The hollow polar plate electrostatic precipitation device and method that a kind of porous media material is formed | |
| CN102500188A (en) | Wet type electric dust-removing device | |
| CN107362648B (en) | Industrial air purification system | |
| CN203540319U (en) | Pre-charge spraying, desulfurizing and dust-removing device | |
| CN206824016U (en) | A kind of Combined Electrostatic dust pelletizing system of temperature/more field strength of wet regulation and control | |
| CN206464078U (en) | For the rectilinear hexagonal tube rotating vane type electrostatic precipitator at the top of desulfurizing tower | |
| CN204911791U (en) | Wet electrostatic precipitator | |
| CN205462732U (en) | Big aperture water conservancy diversion orifice plate of wet -type FRP -electric conduction electric demister individual layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20171120 |