CN202741245U - Electrostatic demisting device - Google Patents
Electrostatic demisting device Download PDFInfo
- Publication number
- CN202741245U CN202741245U CN 201220313358 CN201220313358U CN202741245U CN 202741245 U CN202741245 U CN 202741245U CN 201220313358 CN201220313358 CN 201220313358 CN 201220313358 U CN201220313358 U CN 201220313358U CN 202741245 U CN202741245 U CN 202741245U
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- electrostatic demister
- electrostatic
- described casing
- demister
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Abstract
The utility model discloses an electrostatic demisting device. The electrostatic demisting device consists of a box body (4), a base (11), a plurality of connecting slots (12), a flush pipe (6) and a wastewater discharge pipe (7). The electrostatic demisting device is characterized in that a corona electrode (8) and a settling electrode (9) are included in the box body (4); the external part of the box body (4) also comprises a high-voltage device (10); and the connecting slots (12) at the top end of the box body (4) are connected with the flush pipe (6), and the connecting slots (12) of the base are connected with the wastewater discharge pipe (7). Carrying volume of small droplets in smoke passing through the electrostatic demisting device is greatly reduced; menace on safe operation of a rear smoke channel and a chimney is greatly reduced; the situation that a wet flue gas desulphurization system safely and stably runs is ensured fundamentally; and the content of the droplets in the electrostatically demisted smoke is reduced to the lowest level, thus the problem of 'gypsum rain' caused by corrosion of the rear smoke channel and wet stack emission of the wet flue gas desulphurization system is fundamentally avoided.
Description
Technical field
The utility model relates to a kind of flue gas demister, particularly a kind of electrostatic demister that is used in wet method fume desulfurizing system.
Background technology
In China, adopt the wet desulfurization of flue gas by limestone-gypsum method technology in 300MW and the above fired power generating unit more than 90%.In wet method fume desulfurizing system, flue gas has carried a large amount of droplets after spraying reaction in the absorption tower, because these droplets are carried serous granule secretly, if the not treated back-end ductwork that just enters, afterbody equipment and chimney will be stained and be corroded, jeopardize equipment safety operation, serious will cause " gypsum rain " phenomenon near chimney.For guaranteeing device security, need to drop into substantial contribution flue and chimney are carried out preservative treatment.When fossil-fired unit operating load height, when environment temperature reduces, " gypsum rain " phenomenon is particularly serious.Because it is acid that the droplet of sedimentation is, contain the SO of certain amount
2, SO
3And gypsum slurries etc., can cause certain infringement to the equipment in the settling zone, facility and building, production, the life of surrounding resident exerted an influence.For the slurries that reduce in the wet desulfurization system fume emission carry, demister is set in wet method fume desulfurizing system usually, so demister is a key equipment in the wet method fume desulfurizing system, the quality of its performance directly affects reliability and the economy of desulphurization system.
The demister of present wet method fume desulfurizing system adopts the vane type demister more, but its existence is unstable except fog effect, and fouling is stopped up easily.And be subjected to the impact of smoke distribution inequality larger, and in case occuring, fouling stops up, be easy to cause except the fog effect deterioration, and equipment is impaired.
The utility model content
The problem that the utility model mainly solves is, by electrostatic demister, to carrying out purified treatment through the flue gas behind the spray, fine drop and the acid mist particle amount of carrying in the control flue gas, and the corrosion of reduction back-end ductwork.
For achieving the above object, the scheme that the utility model adopts is: on wet method fume desulfurizing system adsorption tower smoke exhaust pass, electrostatic demister is set, utilizes the high voltage electric field discharge, make the entrained fine drop of flue gas and acid mist particle charged, fine drop after charged and acid mist particle are made displacement to settlement polar, and captured by settlement polar, under Action of Gravity Field, fall with the mud form, thereby reach the demist dust removing effects, improve the flue gas cleannes.For guaranteeing the respond well and continuous safe operation of equipment of demist, in wet static dedusting device, arrange cleaning hose, utilization is washed away liquid and is interrupted the flushing electrode, regularly remove acid mist and the particulate that sticks on corona wire and the settlement polar, keep the electrode cleaning, the equipment of keeping higher except fog effect, and keep good working order.
The device that the utility model proposes is as follows:
A kind of electrostatic demister is comprised of casing, base, some link slots, flush pipe, wastewater discharge pipe, and described box house comprises corona electrode and agglomerator; Described casing outside also comprises high voltage device; The link slot on described casing top connects flush pipe, and the link slot of described base connects wastewater discharge pipe.
Corona electrode and agglomerator are fixed at box house by fixed frame in the described casing, and the arrangement of corona electrode and agglomerator can be adjusted according to the casing placement location.
The link slot of described casing has 3 at least, and described base has one or more link slots.
Described casing is hemisphere or square.
The liquid case is washed away in described flush pipe connection, provides to casing by water pump and washes away liquid.
Described wastewater discharge pipe is fixed by support, connects wastewater disposal basin.
Described casing arranges the air flow guiding plate in inner smoke inlet side.
Described corona electrode and agglomerator are adjusted progression according to flue gas flow.
Described base has the gradient.
The high voltage device of described casing outside has insulating barrier.
The beneficial effects of the utility model:
The utility model is because electrostatic demister has preferably effect, greatly reduce through the fine drop amount of carrying in the flue gas behind the electrostatic demister, threat to the safe operation of back-end ductwork and chimney greatly reduces, and fundamentally guarantees wet method fume desulfurizing system safety, stable operation.Be lowered to floor level through the droplet content in the flue gas after the static demist, fundamentally avoided the corrosion of back-end ductwork and " gypsum rain " problem that the wet smoke stack emission of wet method fume desulfurizing system causes.
Description of drawings
Fig. 1 is the structural representation of a kind of electrostatic demister of the utility model in desulphurization system;
Wherein, 1-gas approach 2-desulfuration absorbing tower 3-desulfuration absorbing tower exhaust pass 4-casing 5-electrostatic demister exhaust pass 6-flush pipe 7-wastewater discharge pipe 8-corona electrode 9-agglomerator 10-high voltage device 11-base 12-link slot.
The specific embodiment
Embodiment 1
As shown in Figure 1; comprise corona electrode 8, agglomerator 9 in the casing 4 of the utility model electrostatic demister; corona electrode 8 and precipitation electrodes 9 are fixed by the fixed mount (not shown) in casing; when casing 4 is placed as shown in Figure 1; corona electrode 8 and agglomerator 9 are vertically to place; in this device electrostatic demister put and do not do requirement, so those skilled in the art can do a little change, also belong to protection domain of the present utility model.The high voltage electric field that utilizes high voltage device 10 to provide, make the corona electrode discharge, form corona, the fine drop particle that carries in the flue gas and acid mist particle owing to be subject to launched the effect of ion and charged, the droplet particles after charged and acid mist particle are adsorbed on agglomerator owing to the attraction of electrode surface surface.
Embodiment 2
As shown in Figure 1, the liquid case is washed away in flush pipe 6 connections of the casing 4 of the utility model electrostatic demister, provides to casing 4 by water pump and washes away liquid.Wash away liquid and be interrupted the flushing electrode, regularly remove acid mist and the particulate that sticks on corona wire and the settlement polar, this cycle can be that those skilled in the art are adjustable voluntarily, in order to keep the electrode cleaning, the equipment of keeping higher except fog effect, and guarantee good working order.Along with increasing of absorption amount of droplets, the drop that is adsorbed is the mud state, fall from agglomerator at action of gravitation, slurries that fall from the casing agglomerator and wash away liquid and discharge from casing 4 bottoms by drainpipe, connect from the wastewater discharge pipe 7 of casing 4 and fix by support, connect the wastewater disposal basin (not shown) and process, avoided the discharging of waste water.The smoke inlet side of casing 4 inside is provided with the air flow guiding plate, is used for control and evenly distributes in casing 4 inside from the air-flow that desulfuration absorbing tower comes, and the flue gas after processing through casing 4 is from exhaust pass 5 discharges.Corona electrode 8 and agglomerator 9 that casing 4 inside are arranged can be adjusted progression according to flue gas flow, so just satisfied under the different condition except fog effect, if device need except fog effect higher, then suitably increase electrode, if device needs normal except fog effect, then normal configuration electrode.
Embodiment 3
The casing 4 of electrostatic demister of the present utility model can directly link to each other or place the inside of desulfuration absorbing tower 2 with desulfuration absorbing tower 2, such purpose can further be saved the construction materials through the later wet flue gas exhaust pass of desulfuration absorbing tower spray, and allow the flue gas after the desulfurization directly enter casing 4, strengthen the uniformity of smoke distribution, thereby be more conducive to improve the demister working effect.
Although the utility model with aforesaid embodiment openly as above, so it is not to limit the utility model.The utility model the technical staff in the technical field is not within breaking away from spirit and scope of the present utility model, when doing a little change and retouching.Therefore protection domain of the present utility model is as the criterion with claims.
Claims (10)
1. an electrostatic demister is comprised of casing (4), base (11), some link slots (12), flush pipe (6), wastewater discharge pipe (7), it is characterized in that, described casing (4) inside comprises corona electrode (8) and agglomerator (9); Described casing (4) outside also comprises high voltage device (10); The link slot (12) on described casing (4) top connects flush pipe (6), and the link slot of described base (12) connects wastewater discharge pipe (7).
2. electrostatic demister as claimed in claim 1, it is characterized in that, corona electrode (8) and agglomerator (9) are fixed at box house by fixed frame in the described casing (4), and the arrangement of corona electrode (8) and agglomerator (9) can be according to casing (4) placement location adjustment.
3. electrostatic demister as claimed in claim 1 is characterized in that, the link slot (12) of described casing (4) has 3 at least, and described base (11) has one or more link slots (12).
4. electrostatic demister as claimed in claim 1 is characterized in that, described casing (4) is hemisphere or square.
5. electrostatic demister as claimed in claim 1 is characterized in that, the liquid case is washed away in described flush pipe (6) connection, provides to casing (4) by water pump and washes away liquid.
6. electrostatic demister as claimed in claim 1 is characterized in that, described wastewater discharge pipe (7) is fixed by support, connects wastewater disposal basin.
7. electrostatic demister as claimed in claim 1 is characterized in that, described casing (4) arranges the air flow guiding plate in inner smoke inlet side.
8. electrostatic demister as claimed in claim 1 is characterized in that, described corona electrode (8) and agglomerator (9) are adjusted progression according to flue gas flow.
9. electrostatic demister as claimed in claim 1 is characterized in that, described base (11) has the gradient.
10. electrostatic demister as claimed in claim 1 is characterized in that, the outside high voltage device (10) of described casing (4) has insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313358 CN202741245U (en) | 2012-06-28 | 2012-06-28 | Electrostatic demisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313358 CN202741245U (en) | 2012-06-28 | 2012-06-28 | Electrostatic demisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202741245U true CN202741245U (en) | 2013-02-20 |
Family
ID=47700694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313358 Expired - Lifetime CN202741245U (en) | 2012-06-28 | 2012-06-28 | Electrostatic demisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202741245U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3454983A4 (en) * | 2016-05-14 | 2020-01-15 | 3D Clean Coal Emissions Stack, LLC | Clean gas stack |
| CN112916205A (en) * | 2021-02-01 | 2021-06-08 | 无锡混沌能源技术有限公司 | High-voltage electrostatic defogging system |
-
2012
- 2012-06-28 CN CN 201220313358 patent/CN202741245U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3454983A4 (en) * | 2016-05-14 | 2020-01-15 | 3D Clean Coal Emissions Stack, LLC | Clean gas stack |
| CN112916205A (en) * | 2021-02-01 | 2021-06-08 | 无锡混沌能源技术有限公司 | High-voltage electrostatic defogging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: DATANG TECHNOLOGY INDUSTRY GROUP CO.,LTD. Address after: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee after: DATANG TECHNOLOGY INDUSTRY Co.,Ltd. Address before: 100097 Beijing Haidian District Zizhuyuan Road No. 120 Patentee before: CHINA DATANG GROUP ENVIRONMENT TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |