CN204544461U - Wet electrical dust precipitator cathode line - Google Patents
Wet electrical dust precipitator cathode line Download PDFInfo
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- CN204544461U CN204544461U CN201520203897.8U CN201520203897U CN204544461U CN 204544461 U CN204544461 U CN 204544461U CN 201520203897 U CN201520203897 U CN 201520203897U CN 204544461 U CN204544461 U CN 204544461U
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- dust precipitator
- electrical dust
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Abstract
The utility model discloses a kind of wet electrical dust precipitator cathode line, comprise cathode rod and the electric discharge video disc along described cathode rod axial distribution, described cathode rod is also connected with discharge body, described discharge body is arranged between adjacent electric discharge video disc, and the cross-sectional area of described discharge body reduces from top to bottom gradually; Wet electrical dust precipitator cathode line of the present utility model, by setting up discharge body, increase region of discharge area and current density, effectively improve electric-field intensity, reduce the corona dead band that deduster inside exists simultaneously, ensure that dust is fully charged, promote dust removing effects, and its up big and down small shape can change the flow direction of flue gas, the distance moving to dust collector pole after making the dust in flue gas charged shortens, and improves efficiency of dust collection; The utility model structure is simple, can in existing cathode line, directly be fixedly connected with discharge body and obtain, simplified manufacturing technique to greatest extent, be conducive to applying.
Description
Technical field
The utility model relates to a kind of electric cleaner parts, particularly a kind of wet electrical dust precipitator cathode line.
Background technology
Wet electrical dust precipitator, as the treating apparatus of the pollutant such as fine particle and droplet in flue gas, progressively obtains at thermal power industry and applies.The dust removal process of wet electrical dust precipitator is mainly divided into charged, control of dust and deashing three steps, and in running, dust charge electrical property directly affects the dust removing effects of deduster.Cathode line is one of core component of wet electrical dust precipitator, and its version is directly connected to the charging performance of dust, thus has influence on the dust removing effects of wet electrical dust precipitator.The cathode line version that current wet electrical dust precipitator adopts is more, and the structure difference according to electric discharge video disc can be divided into sawtooth pattern, star, barb type etc.Cathode line electric discharge video disc is welded on corrosion resistant stainless steel tube according to a determining deviation, and be then affixed to brace summer, after connecting high voltage source, cathode line axially produces corona discharge along stainless steel tube, makes the dust in flue gas charged.Often there is the problem that cathode line current density is low and corona dead band is more in running in existing wet electrical dust precipitator, cannot ensure that dust is fully charged, cause dust removing effects undesirable, reduce efficiency of dust collection.
Therefore, just need to improve existing wet electrical dust precipitator cathode line, effectively can improve electric-field intensity, reduce its inner corona dead band existed, ensure that dust is fully charged, promote dust removing effects, reduce the corona dead band of deduster inside simultaneously as far as possible, improve efficiency of dust collection.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of wet electrical dust precipitator cathode line, it effectively can improve electric-field intensity, reduce its inner corona dead band existed, ensure that dust is fully charged, promote dust removing effects, reduce the corona dead band of deduster inside simultaneously as far as possible, improve efficiency of dust collection.
Wet electrical dust precipitator cathode line of the present utility model, comprise cathode rod and the electric discharge video disc along described cathode rod axial distribution, described cathode rod is also connected with discharge body, and described discharge body is arranged between adjacent electric discharge video disc, and the cross-sectional area of described discharge body reduces from top to bottom gradually.
Further, described discharge body is tapered.
Further, the outside diameter of described discharge body is less than or equal to the lateral length of electric discharge video disc.
Further, described discharge body comprises the first discharge body being located at cathode rod lower end and the second discharge body being located at cathode rod upper end.
Further, the two ends of described cathode rod are respectively equipped with the connecting portion for being connected with cathode frame.
Further, described electric discharge video disc is polygon, pointed shape ring-type or barb type structure,
Further, described electric discharge video disc arranges in equally spaced manner; Or along the bottom of described cathode rod toward the direction on top, the interval between adjacent described electric discharge video disc increases gradually.
Further, described cathode rod is rigid pipe or rigid rod.
Further, described cathode rod, electric discharge video disc and discharge body adopt corrosion resistant metal material to make.
The beneficial effects of the utility model: wet electrical dust precipitator cathode line of the present utility model, by setting up discharge body, increase region of discharge area and current density, effectively improve electric-field intensity, reduce the corona dead band that deduster inside exists simultaneously, ensure that dust is fully charged, promote dust removing effects, and its up big and down small shape can change the flow direction of flue gas, the distance moving to dust collector pole after making the dust in flue gas charged shortens, and improves efficiency of dust collection; The utility model structure is simple, can in existing cathode line, directly be fixedly connected with discharge body and obtain, simplified manufacturing technique to greatest extent, be conducive to applying.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A view in Fig. 1.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, Fig. 2 is A-A view in Fig. 1, as shown in the figure: the wet electrical dust precipitator cathode line of the present embodiment, comprise cathode rod 1 and the electric discharge video disc 2 along described cathode rod 1 axial distribution, described cathode rod 1 is also connected with discharge body, described discharge body is arranged between adjacent electric discharge video disc 2, and the cross-sectional area of described discharge body reduces from top to bottom gradually; Herein " on " D score be cathode rod 1 be vertically fixed on deduster inner time direction, now the lower end of cathode rod 1 near gas access, upper end is near gas vent (direction with in Fig. 1); Cathode rod 1 adopts corrosion resistant metal material such as stainless steel to make, and can be rigid pipe or rigid rod, to guarantee the Rigidity and strength of cathode line; Electric discharge video disc 2 also adopts identical corrosion-resistant metal materials to make, conduct electricity very well, long service life, it can be polygon, pointed shape ring-type or barb type structure, and being preferably discharge tip is the prickle ring of multidirectional pointed shape, can discharge to all directions, reduce electric discharge blind area; Be respectively equipped with the connecting portion 4 for being connected with cathode frame at the two ends of cathode rod 1, connecting portion 4 can be provided with externally threaded connecting rod or establish female Connection Block, is convenient to installation and removal; Discharge body also adopts corrosion resistant metal material to make, and electric conductivity is strong, is fixed on cathode rod 1, makes stable connection by welding manner; By setting up discharge body, increase region of discharge area, increase current density, effectively improve electric-field intensity, reduce the corona dead band that deduster inside exists simultaneously, ensure that dust is fully charged, promote dust removing effects, and its up big and down small shape can change the flow direction of flue gas, the distance moving to dust collector pole after making the dust in flue gas charged shortens, and improves efficiency of dust collection; This cathode line structure is simple, be easy to manufacture and install, and can in existing cathode line, directly be fixedly connected with discharge body and obtain, simplified manufacturing technique to greatest extent, be conducive to applying.
In the present embodiment, described discharge body is tapered, and symmetrical rotary structure makes Electric Field Distribution even, and is convenient to manufacture; The outside diameter of discharge body is less than or equal to the lateral length of electric discharge video disc 2; Transverse direction is herein radial consistent with cathode rod 1; Avoid the discharge effect affecting electric discharge video disc 2; The quantity of discharge body and position can according to dustiness, flow velocity etc. in flue gas because usually arranging; Only arrange two in the present embodiment, namely be located at the first discharge body 31 of cathode rod 1 lower end and be located at the second discharge body 32 of cathode rod 1 upper end, one another is near gas vent near gas access, reaches with minimum quantity the beneficial effect that the utility model mentions.
In the present embodiment, described electric discharge video disc 2 arranges in equally spaced manner; Equidistant arrangement can make uniform current density; Certainly, electric discharge video disc 2 also can otherwise arrange, such as along the bottom of cathode rod 1 toward the direction on top, interval between neighbouring discharge video disc 2 increases gradually, the corona current density that so just can strengthen gas access place, to ensure that the dust that concentration is higher can be fully charged, improves the dust removal efficiency of deduster further.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. a wet electrical dust precipitator cathode line, comprise cathode rod and the electric discharge video disc along described cathode rod axial distribution, it is characterized in that: described cathode rod is also connected with discharge body, described discharge body is arranged between adjacent electric discharge video disc, and the cross-sectional area of described discharge body reduces from top to bottom gradually.
2. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: described discharge body is tapered.
3. wet electrical dust precipitator cathode line according to claim 2, is characterized in that: the outside diameter of described discharge body is less than or equal to the lateral length of electric discharge video disc.
4. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: described discharge body comprises the first discharge body being located at cathode rod lower end and the second discharge body being located at cathode rod upper end.
5. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: the two ends of described cathode rod are respectively equipped with the connecting portion for being connected with cathode frame.
6. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: described electric discharge video disc is polygon, pointed shape ring-type or barb type structure,
7. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: described electric discharge video disc arranges in equally spaced manner.
8. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: along the bottom of described cathode rod toward the direction on top, the interval between adjacent described electric discharge video disc increases gradually.
9. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: described cathode rod is rigid pipe or rigid rod.
10. wet electrical dust precipitator cathode line according to claim 1, is characterized in that: described cathode rod, electric discharge video disc and discharge body adopt corrosion resistant metal material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203897.8U CN204544461U (en) | 2015-04-07 | 2015-04-07 | Wet electrical dust precipitator cathode line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203897.8U CN204544461U (en) | 2015-04-07 | 2015-04-07 | Wet electrical dust precipitator cathode line |
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| CN204544461U true CN204544461U (en) | 2015-08-12 |
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| CN201520203897.8U Active CN204544461U (en) | 2015-04-07 | 2015-04-07 | Wet electrical dust precipitator cathode line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076631A (en) * | 2016-08-18 | 2016-11-09 | 北京国能中电节能环保技术股份有限公司 | A kind of cathode line for wet cottrell |
| CN108405187A (en) * | 2018-02-02 | 2018-08-17 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of cathode carrier |
-
2015
- 2015-04-07 CN CN201520203897.8U patent/CN204544461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076631A (en) * | 2016-08-18 | 2016-11-09 | 北京国能中电节能环保技术股份有限公司 | A kind of cathode line for wet cottrell |
| CN108405187A (en) * | 2018-02-02 | 2018-08-17 | 佛山市高明区杨和金属材料专业镇技术创新中心 | A kind of cathode carrier |
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