CN104190547A - Combined type polarity structure of wet type electric dust collector - Google Patents
Combined type polarity structure of wet type electric dust collector Download PDFInfo
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- CN104190547A CN104190547A CN201410486933.6A CN201410486933A CN104190547A CN 104190547 A CN104190547 A CN 104190547A CN 201410486933 A CN201410486933 A CN 201410486933A CN 104190547 A CN104190547 A CN 104190547A
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Abstract
The invention provides a combined type polarity structure of a wet type electric dust collector. The combined type polarity structure comprises a plurality of anode plates and a plurality of cathode lines which are arranged at intervals, wherein the plurality of anode plates are all identical standard 818 anode plates; or the plurality of anode plates comprises standard 818 anode plates and non-standard anode plates; the cathode lines are barb lines; barbs on two sides of each cathode line are respectively perpendicular to the anode plates on same sides; the barbs on two sides of each cathode line are arranged in the length direction of each cathode line in a staggered manner; the sharp end of each barb is opposite to the falling direction of washing water; the cathode lines can be arranged parallel to or perpendicular to fume direction. The combined type polarity structure can be in efficient synergism with a desulfurizing tower, so that fume can be uniformly purified, the phenomenon of fume short circuit is effectively avoided, and the dust collection efficiency is improved.
Description
Technical field
The invention belongs to air pollution control technique field, mainly cigarette (giving up) gas the purification techniques field, the particularly equipment of wet electrical dust precipitator dedusting and technology field of flue gas ash removal (containing PM2.5), desulfurization and the demercuration in Coal-fired Thermal Power, coal-burning boiler, iron making and sintering machine, nonferrous metallurgy and chemical building material field.
Background technology
The traditional Wet Fgd By Limestone of China has developed rapidly for many years at home on a large scale, and after adopting new standard, power plant reduces oxysulfide and fine particle emission limit.For realizing high desulfurization efficiency and the high dust removal efficiency of new demand, numerous domestic enterprise starts to adopt the use in conjunction of desulfurization and wet-esp technology, thereby cooperation-removal PM2.5 fine dust, aerosol and " gypsum rain " particle, to meet the at present collaborative super clean emission of Coal-fired Thermal Power flue gas while putting forward effect, market trend and the following new national standard dedusting requirement of firing the super clean emission of fine particle of machine discharge standard, non-electric industry.
Wet electrical dust precipitator is in the use in conjunction technology with desulfurizing tower, especially when adopting vertical current wet electrical dust precipitator when desulfurization tower top is arranged, in order to reduce flue gas, from non-electric field district, pass through, reduce the air leak rate of air curtain of wet electrical dust precipitator, the utmost point distribution structure of wet electrical dust precipitator need to design accordingly according to the structure of the vertical current wet electrical dust precipitator of the circular cross-section of the structure of desulfurizing tower and overhead; The vertical current wet electrical dust precipitator of the circular cross-section of arranging outside tower also needs to carry out the optimal design of utmost point distribution structure.Especially aspect positive plate and cathode line arrange, for the circular cross-section with desulfurizing tower realizes efficient collaboratively, more need consideration and the optimization of comprehensive aspect.The positive plate of general vertical current wet electrical dust precipitator inside is in cloth postpone, near the flue gas of the tower wall short circuit phenomenon of still can leaking gas, thereby causes flue gas ash removal weak effect.Meanwhile, in desulfurizing tower, general flue gas flow rate is higher, thereby oversize cathode line can be waved guiding discharge shakiness.And ambient humidity is large in desulfurizing tower, the unreasonable meeting of overhead type wet electrical dust precipitator polar curve structure causes polar curve discharge end to hang water phenomenon, thereby causes the wet electrical dust precipitator can not stable operation.The pattern of positive plate, cathode line and combination are occupied very important status to the impact of the dust collection performance of electric cleaner and cost equally.
Thereby, design a kind of utmost point distribution structure that is applicable to the vertical current wet electrical dust precipitator of circular cross-section, can maximize and adapt to the electric field region that is placed in the circular cross-section vertical current wet electrical dust precipitator at desulfurizing tower top, reduce the air leak rate of air curtain of flue gas in vertical current wet electrical dust precipitator, it is particularly important that its technical meaning just seems.
Summary of the invention
The combined type utmost point distribution structure that the object of this invention is to provide a kind of wet electrical dust precipitator, can be efficiently collaborative with desulfurizing tower, and flue gas is evenly purified, and effectively avoids flue gas short circuit phenomenon, reduces the air leak rate of air curtain of flue gas in wet electrical dust precipitator, improves efficiency of dust collection.
Technical scheme provided by the invention is as follows:
A combined type utmost point distribution structure for wet electrical dust precipitator, comprises spaced polylith positive plate and Duo Gen cathode line;
Described in polylith, positive plate is all identical standard 818 positive plates, or positive plate is the combination of standard 818 positive plates and non-standard positive plate described in polylith;
Described cathode line is prickle wire, and cathode line can adopt and be parallel to flue gas direction and arrange, or cathode line adopts and arranges perpendicular to flue gas direction; And the tip of the prickle in cathode line is towards the landing opposite direction with flushing water;
The width of described non-standard positive plate is L, and its size range is 250mm≤L≤818mm;
The combined type utmost point distribution structure of described wet electrical dust precipitator, comprises the described non-standard positive plate of one or more width applied in any combination;
The prickle of described every cathode line both sides respectively with vertical setting of positive plate of homonymy.
Further preferably, the spacing between adjacent described positive plate is 300～500mm.
Further preferably, the prickle of every cathode line both sides is along the length direction interlaced arrangement of cathode line, and homonymy prickle spacing is 100mm.
Further preferably, when described cathode line employing is arranged perpendicular to flue gas direction, the adjacent two parallel cathode lines spacing in vertical direction are 150～250mm.
Further preferably, when described cathode line employing is parallel to flue gas direction layout, the cathode line in the middle of two positive plates can be placed 3～5.
Combined type utmost point distribution structure by a kind of wet electrical dust precipitator provided by the invention, can bring following at least one beneficial effect:
1, gas cleaning is even, effectively avoids the short circuit phenomenon of leaking gas, and realizes ultralow air leak rate of air curtain, and dust removal efficiency is high.According to practical situations, the tower diameter of different desulfurizing towers can adopt different positive plate arrangements.In an embodiment of the present invention, some desulfurizing towers only adopt being used in combination of unified standard 818 positive plates can guarantee also can be cleaned near the flue gas of tower wall, and some desulfurizing towers are while only adopting unified standard 818 positive plate, still may there is the flue gas gas leak phenomenon near tower wall, thereby the non-standard positive plate of arranging in pairs or groups is used in combination, for example in the position near tower wall, according to the distance of the end of standard 818 positive plates and tower wall, determine to arrange again the specification (being width dimensions) of non-standard positive plate, thereby effectively guarantee also can be cleaned near the flue gas of Ta Bi position, improved the coverage rate of positive plate, greatly reduced the gas leak phenomenon of tower wall, thereby guarantee that flue gas is evenly distributed in electric field, without short circuit phenomenon, realized ultralow air leak rate of air curtain.
2, evenly, flue gas chargeability is high in electric field electric discharge, and electric field is stable.Cathode line of the present invention adopts prickle wire, and the prickle of cathode line both sides is respectively perpendicular to the positive plate setting on both sides, the prickle interlaced arrangement of both sides, prickle tip towards with flushing water landing opposite direction, can effectively prevent so the most advanced and sophisticated band of prickle water, also guarantee the stability of electric discharge.Cathode line of the present invention can adopt and be parallel or perpendicular to flue gas direction layout.When arranging perpendicular to flue gas direction, can guarantee more crypto set of cathode line, the prickle that discharges on the cross section of flow of flue gas is more, and flue gas chargeability is high, further prevents the generation of flue gas gas leakage short circuit phenomenon.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the structural representation that the present invention only uses a kind of embodiment of standard 818 positive plates;
Fig. 2 is the structural representation that the present invention is used in combination a kind of embodiment of standard 818 positive plates and non-standard positive plate;
Fig. 3 is the schematic diagram of a kind of utmost point distribution structure of the present invention;
Fig. 4 is the schematic diagram of another kind of utmost point distribution structure of the present invention;
Fig. 5 is the structural representation of a kind of embodiment of cathode line of the present invention;
Fig. 6 is the A-A generalized section in Fig. 4.
Drawing reference numeral explanation:
1-positive plate; 2-cathode line; 101-standard 818 positive plates; The non-standard positive plate of 3-; 4-awns
Thorn.
The specific embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
In embodiments of the invention one, as shown in figures 1 and 3, the combined type utmost point distribution structure of a kind of wet electrical dust precipitator of the present embodiment is comprised of polylith positive plate 1 and Duo Gen cathode line 2, and polylith positive plate and the setting of Duo Gen cathode line interval, two relative positive plate 1 intermediate arrangement cathode line 2.Polylith positive plate 1 adopts unified standard 818 positive plates, and positive plate sheet material can be selected SUS304L, SUS316L or 2205 materials.Cathode line 2 adopts prickle wires (as shown in Fig. 3,5), and the prickle 4 of every cathode line both sides is respectively perpendicular to the positive plate on both sides, i.e. the prickle of every side and the positive plate of homonymy is vertical arranges.Meanwhile, the prickle 4 of every cathode line both sides is along the length direction interlaced arrangement of cathode line.Preferably, adjacent prickle 4 spacing of homonymy are 100mm.The tip of prickle 4, towards the direction of the landing opposite direction with flushing water (as shown in Figure 6 prickle tip towards), can effectively prevent the tip band water of prickle 4.Spacing between two adjacent positive plates is 300～500mm, for example, be 300mm, and the length of every positive plate can be 4～10m, and adjacent cathode line be arranged in parallel, and the spacing of two parallel cathode lines is 150～250mm, for example, be 200mm.Cathode line 2 adopts arranges perpendicular to flue gas direction.
In embodiments of the invention two, as shown in Figure 2 and Figure 4, the combined type utmost point distribution structure of a kind of wet electrical dust precipitator of the present embodiment is comprised of polylith positive plate 1 and Duo Gen cathode line 2, and polylith positive plate and the setting of Duo Gen cathode line interval, two relative positive plate 1 intermediate arrangement cathode line 2.Positive plate 1 adopts the combining form of unified standard 818 positive plates 101 and non-standard positive plate 3.The width of non-standard positive plate is L, its size range is 250mm≤L≤818mm, be that non-standard positive plate 3 can adopt width in 250～818 plurality of specifications, for example 1/3 818 positive plates, 1/2 818 positive plates, 2/3 818 positive plates, 3/4 818 positive plates, need only and guarantee that positive plate is apart from the mounting distance of tower wall >=50mm.Can adopt the pole plate of various non-standard specifications, but for actual production and installation cost consider, the positive plate specification kind that wet electrical dust precipitator inside is selected is more few better.The non-standard positive plate 3 of a wet electrical dust precipitator inside can adopt the applied in any combination of any one or plurality of specifications according to deployment scenarios, and specification chooses to reach that plugging effect is best, plate gauge lattice are minimum, Mould Machining is conveniently principle.Positive plate sheet material can be selected SUS304L, SUS316L or 2205 materials.Cathode line 2 adopts prickle wires, and structure is as Fig. 4,5, and the prickle 4 of every cathode line both sides is respectively perpendicular to the positive plate on both sides, i.e. the prickle of every side and the positive plate of homonymy is vertical arranges.Meanwhile, the prickle 4 of every cathode line both sides is along the length direction interlaced arrangement of cathode line.Preferably, adjacent prickle 4 spacing of homonymy are 100mm.The tip of prickle 4, towards the direction of the landing opposite direction with flushing water (as shown in Figure 6 prickle tip towards), can effectively prevent the tip band water of prickle 4.Cathode line 2 adopts and is parallel to flue gas direction layout.
Preferably, when cathode line 2 employings are parallel to flue gas direction layout, the cathode line 2 in the middle of two positive plates 1 can be placed 3～5, for example, in Fig. 3, place 4.Spacing between two adjacent positive plates is 300～500mm, for example, be 300mm, and the length of every positive plate can be 4～10m, and adjacent cathode line be arranged in parallel, and the spacing of two parallel cathode lines is 150～250mm, for example, be 200mm.The length of cathode line 2 is determined according to positive plate length.
It should be noted that all independent assortments as required of above-described embodiment.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a combined type utmost point distribution structure for wet electrical dust precipitator, comprises spaced polylith positive plate and Duo Gen cathode line;
It is characterized in that:
Described in polylith, positive plate is all identical standard 818 positive plates, or positive plate is the combination of standard 818 positive plates and non-standard positive plate described in polylith;
Described cathode line is prickle wire, and cathode line can adopt and be parallel to flue gas direction and arrange, or cathode line adopts and arranges perpendicular to flue gas direction; And the tip of the prickle in cathode line is towards the landing opposite direction with flushing water;
The width of described non-standard positive plate is L, and its size range is 250mm≤L≤818mm;
The combined type utmost point distribution structure of described wet electrical dust precipitator, comprises the described non-standard positive plate of one or more width applied in any combination;
The prickle of described every cathode line both sides respectively with vertical setting of positive plate of homonymy.
2. the combined type utmost point distribution structure of wet electrical dust precipitator according to claim 1, is characterized in that: the spacing between adjacent described positive plate is 300～500mm.
3. the combined type utmost point distribution structure of wet electrical dust precipitator according to claim 1, is characterized in that: the prickle of every cathode line both sides is along the length direction interlaced arrangement of cathode line, and homonymy prickle spacing is 100mm.
4. the combined type utmost point distribution structure of wet electrical dust precipitator according to claim 1, is characterized in that:
When described cathode line employing is arranged perpendicular to flue gas direction, the adjacent two parallel cathode lines spacing in vertical direction are 150～250mm.
5. the combined type utmost point distribution structure of wet electrical dust precipitator according to claim 1, is characterized in that:
When described cathode line employing is parallel to flue gas direction layout, the cathode line in the middle of two positive plates can be placed 3～5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486933.6A CN104190547A (en) | 2014-09-22 | 2014-09-22 | Combined type polarity structure of wet type electric dust collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410486933.6A CN104190547A (en) | 2014-09-22 | 2014-09-22 | Combined type polarity structure of wet type electric dust collector |
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| CN104190547A true CN104190547A (en) | 2014-12-10 |
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| CN201410486933.6A Pending CN104190547A (en) | 2014-09-22 | 2014-09-22 | Combined type polarity structure of wet type electric dust collector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861906A (en) * | 2017-04-26 | 2017-06-20 | 福建龙净环保股份有限公司 | A kind of electric cleaner |
| CN106955782A (en) * | 2017-05-10 | 2017-07-18 | 福建龙净环保股份有限公司 | Flue gas condensing Water Sproading dust arrester |
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| CN2593909Y (en) * | 2002-12-13 | 2003-12-24 | 宝山钢铁股份有限公司 | Round line pipe for electric dust cleaner |
| US7160364B2 (en) * | 2001-10-23 | 2007-01-09 | Geecom (Pty) Limited | Discharge electrode |
| CN202823627U (en) * | 2012-09-25 | 2013-03-27 | 福建龙净环保股份有限公司 | Polar assignment structure for wet electric precipitator |
| CN203291963U (en) * | 2013-05-16 | 2013-11-20 | 中国重型机械研究院股份公司 | Electrode matching manner for wet-type electric dust remover |
| CN103949127A (en) * | 2014-04-02 | 2014-07-30 | 华电电力科学研究院 | Flue embedded wet-type electric deduster and electrical dedusting method |
| CN104014430A (en) * | 2014-06-25 | 2014-09-03 | 上海龙净环保科技工程有限公司 | Wet electric precipitator |
| CN204074266U (en) * | 2014-09-22 | 2015-01-07 | 上海龙净环保科技工程有限公司 | A kind of combined type pole distribution structure of wet electrical dust precipitator |
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2014
- 2014-09-22 CN CN201410486933.6A patent/CN104190547A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7160364B2 (en) * | 2001-10-23 | 2007-01-09 | Geecom (Pty) Limited | Discharge electrode |
| CN2593909Y (en) * | 2002-12-13 | 2003-12-24 | 宝山钢铁股份有限公司 | Round line pipe for electric dust cleaner |
| CN202823627U (en) * | 2012-09-25 | 2013-03-27 | 福建龙净环保股份有限公司 | Polar assignment structure for wet electric precipitator |
| CN203291963U (en) * | 2013-05-16 | 2013-11-20 | 中国重型机械研究院股份公司 | Electrode matching manner for wet-type electric dust remover |
| CN103949127A (en) * | 2014-04-02 | 2014-07-30 | 华电电力科学研究院 | Flue embedded wet-type electric deduster and electrical dedusting method |
| CN104014430A (en) * | 2014-06-25 | 2014-09-03 | 上海龙净环保科技工程有限公司 | Wet electric precipitator |
| CN204074266U (en) * | 2014-09-22 | 2015-01-07 | 上海龙净环保科技工程有限公司 | A kind of combined type pole distribution structure of wet electrical dust precipitator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861906A (en) * | 2017-04-26 | 2017-06-20 | 福建龙净环保股份有限公司 | A kind of electric cleaner |
| CN106955782A (en) * | 2017-05-10 | 2017-07-18 | 福建龙净环保股份有限公司 | Flue gas condensing Water Sproading dust arrester |
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Application publication date: 20141210 |