CN205146450U - Wet -type electrostatic dust collector - Google Patents
Wet -type electrostatic dust collector Download PDFInfo
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- CN205146450U CN205146450U CN201520948929.7U CN201520948929U CN205146450U CN 205146450 U CN205146450 U CN 205146450U CN 201520948929 U CN201520948929 U CN 201520948929U CN 205146450 U CN205146450 U CN 205146450U
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Abstract
The utility model discloses a wet -type electrostatic dust collector, including the dust remover barrel, the dust remover barrel is including the clean room, and set up in the air inlet and the gas outlet at clean room both ends, be provided with electrostatic precipitator mechanism in the dust remover barrel between relative air inlet and the gas outlet, this electrostatic precipitator mechanism is including the positive pole pipe that is parallel to each other and arranges side by side by many, be provided with the negative pole line on the every intraductal chamber the central axis of positive pole, the grid board that is provided with fixed for the below level of positive pole pipe in the clean room, be provided with on this grid board with the every corresponding grid hole of the intraductal chamber the central axis of positive pole, just negative pole line lower extreme pass this grid hole, make terminal plummet fix on this grid board. The utility model has the advantages that to containing wet particle and water foam in the flue gas after the desulfurization of entrapment wet dedusting, have higher desorption efficiency, improved simultaneously handle that gas is fast, the stability of operation and anti -corrosion performance etc. Can further strengthen dust removal desulfurization effect, reduce the chimney and emit the white cigarette and the phenomenon of trailing.
Description
Technical field
The utility model discloses a kind of dust arrester, specifically refer to a kind of wet cottrell.
Background technology
Recent domestic environmental requirement is more and more higher, various petrochemical industry tail gas, furnace flue gas must after dust-removal and desulfurizing qualified discharge.At present, the technique of wet dedusting desulfurization is still a kind of prevailing technology reliably.But, the flue gas discharged after the at present conventional wet dedusting desulfurization process such as lime method, limestone-based process, sodium alkali, Dual alkali, ammonia process, amine process, magnesium oxide method containing wet, dust-laden and higher containing foam, Mao Baiyan and conditions of streaking serious.Along with environmental requirement improves constantly, white cigarette and conditions of streaking is emitted in order to reduce chimney, after the wet dedusting desulfurization process had at present flue gas first after electrostatic precipitator or wet cottrell (also claim wet electrical dust precipitator, electric cleaner divides wet type, dry type etc.) process again by smoke stack emission.
The operation principle of wet cottrell (electrostatic precipitator is also identical) passes through high voltage direct current generator, alternating current is become anode tube bank and cathod system that high voltage direct current delivers to deduster, in the tube bank of every root anode (or trapping pole plate) and cathod system (discharge lines in pipe, also claim cathode line) between form powerful electric field, by cathode line corona discharge, wherein air molecule is ionized, produce a large amount of electronics and just instantaneously, anion, when flue gas after wet dedusting desulfurization passes through in anode tube beam tube, the wet particle molecule that contains wherein is forced charged, directed movement is done under the effect of electric field force (Coulomb force), constitute the medium of trapping containing wet particle.Above-mentioned electronegative sub-particulate is charged, under the effect of high-tension electricity field force, directed movement is arrived on the anode tube bank wainscot of trapping, charged particle discharges electronics on positive plate, so gathered containing wet particle, flow under gravity or be rinsed in the retracting device to deduster, so just reach the object of purifying and dedusting demist.
Along with environmental requirement improves constantly, require that wet cottrell has higher removal efficiency; In order to tackle the process tolerance improved constantly, and economical, compact, require higher process gas speed; Because high cycle speed, variation are large, require stable, power consumption efficiency is high; Because after wet dedusting desulfurization process, smoke moisture is high, require that antiseptic property is good, insulating properties are good.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existed to overcome prior art, and a kind of wet cottrell utilizing electrostatic principle to design is provided, this wet cottrell to after trapping wet dedusting desulfurization in flue gas containing wet particle and foam, there is higher removal efficiency, improve process gas speed, the stability run and Corrosion Protection etc. simultaneously, dust-removal and desulfurizing effect can be consolidated further, reduce chimney and emit white cigarette and conditions of streaking.
For achieving the above object, the technical solution of the utility model includes deduster cylindrical shell, deduster cylindrical shell includes dirt pocket, and be arranged at air inlet and the gas outlet at dirt pocket two ends, relatively electrostatic precipitation mechanism is provided with between air inlet and gas outlet in deduster cylindrical shell, this electrostatic precipitation mechanism includes by the many anode tube be arranged side by side that are parallel to each other, every root anode tube lumen centers axis is provided with cathode line, in dirt pocket, the upper horizontal of anode tube is provided with cathode line upper holder, the upper end of described cathode line is fixed on cathode line upper holder, and the lower end of cathode line is through anode tube and its end is fixedly installed plummet, flase floor is fixedly installed relative to the lower horizontal of anode tube in described dirt pocket, this flase floor is provided with the grate opening corresponding with every root anode tube lumen centers axis, and described cathode line lower end is through this grate opening, the plummet of end is fixed on this flase floor.
By this setting, anode tube is owing to having certain length, cathode line is placed in one, the plummet gravity sag that single pass-through cathode line end is arranged is fixed, under the effect of process gas, cathode line there will be amplitude of vibration, swing, easily cause partial short-circuit electric discharge phenomena, by the flase floor that the lower horizontal relative to anode tube in dirt pocket is fixedly installed, the lower end of cathode line and plummet thereof are fixed on Turbogrid plates, the fixing-stable of cathode line can be made reliable, thus reduce swing and amplitude of vibration generation, prevent partial short-circuit, it is made to discharge evenly, stable, improve removal efficiency and power consumption efficiency.
Further setting is the described interior flase floor be fixedly installed relative to the lower horizontal of anode tube of dirt pocket, by more than at least 2 or 2 insulator chambers, be fixed on the bottom of deduster cylindrical shell, insulator is fixed with in described insulator chamber, insulator chamber, deduster cylindrical shell and cathode line or the spacing of each assembly of flase floor that is communicated with it is made to be greater than negative and positive arcing distance, thus by insulator, cathode line lower end and the acquisition of end plummet thereof are fixed, and insulate with cylindrical shell.
Further setting adds air sparger in insulator chamber, and by introducing hot-air (or introduce cold air and heat at insulator chamber inner chamber), to reduce the humidity (also namely reducing dew-point temperature) of insulator chamber inner chamber air and to improve the temperature (also namely improve the temperature of insulator) of insulator chamber inner chamber air, thus make insulator surface temperature be greater than the dew-point temperature of insulator chamber inner chamber air, can not condensation water film, moisture film is caused to discharge and short circuit, unstability or reduction power consumption efficiency, to guarantee the insulating properties under high humility, high gas velocity.Thus improve the insulating properties of insulator chamber, to resist the high humility of flue gas after wet dedusting desulfurization process, and adapt to the process gas speed after improving.In addition, the top extenal fixation of deduster cylindrical shell is provided with several insulated case, in order to the fixed negative pole line upper holder that insulate, the insulating properties scheme that the present embodiment improves insulator chamber also can be applicable to this insulated case.
Further setting is that the bottom of described deduster cylindrical shell is provided with lower chamber, described air inlet is arranged at the lower end of lower chamber, the upper end of this lower chamber is connected with the water conservancy diversion distributing chamber that cross-sectional area increases from top to bottom gradually, the described upper end of water conservancy diversion distributing chamber is connected with the lower end of dirt pocket, is designed with diversion distribution board and guide fluid grating in described water conservancy diversion distributing chamber.By this setting, process gas flow guiding is evenly distributed, enters in dirt pocket in order, reposefully from lower chamber, and its electric discharge can be made more even, stable, improve removal efficiency and power consumption efficiency.
Further setting is that the top of deduster cylindrical shell is provided with exhaust chamber, described gas outlet is arranged at the upper end of exhaust chamber, the upper end of this exhaust chamber is connected with the collection chamber that cross-sectional area reduces from top to bottom gradually, and the lower end of described collection chamber is connected with the upper end of dirt pocket.By this setting, purified gas is assembled in an orderly manner and discharges from gas outlet.
Further setting is that described deduster cylindrical shell adopts vinyl conductive steel glass (CFRP), it is for adhesive with vinyl esters synthetic resin, with glass fibre and goods thereof for reinforcing material, be conductive material with carbon fiber product, and be aided with other auxiliary agent and make.By this setting, deduster cylindrical shell is made to have good conduction, anticorrosion, fire resistance, and the advantage such as intensity, rigidity be good.
Further setting is the cross section one-tenth regular hexagon of described anode tube, and many anode tube become the cellular setting that is arranged side by side.By this setting, this structure deduster cylindrical shell flow area utilization rate is high, and opposite position process gases flow is large, and cellular mutual support between many anode tube, and structural rigidity is good, stable connection is reliable.
Further setting to be described cathode line be titanium alloy or lead-antimony alloy or C276 material, by this setting, guarantee that this cathode line is anticorrosive efficient discharge lines.
Further setting is that described anode tube adopts extension design, and the length of this anode tube is increased to 6 meters by common 4.5 meters.By this setting, improve removal efficiency, can reach more than 90%, process gas speed also can be increased to 1.5 ~ 2 meter per seconds by common 1 meter per second, even more than 2 meter per seconds (raising of process gas speed will cause removal efficiency to reduce).Anode tube adopts extension design adopting flase floor, target line lower end and end plummet thereof obtain the lower use that fixes, improve process gas speed to use under the insulating properties scheme adopting raising insulator chamber, reliable to guarantee the fixing-stable of cathode line, prevent the phenomenon such as partial short-circuit, unstability.
Further setting is, in described deduster cylindrical shell, the top of dirt pocket is provided with flusher, this flusher includes cleaning hose and is arranged at the Flushing nozzle on cleaning hose, described Flushing nozzle design adopts the special shower nozzle of low discharge, HI high impact, and performs cleaning procedure control.By this setting, under given conditions, by be gathered in anode tube inner surface containing wet particle, rinse in the circulation fluid system to deduster or in retracting device, anode tube inner surface obtains and effectively rinses, thus make it discharge more evenly, stable, in order to the raising of removal efficiency and power consumption efficiency.
Further setting is described insulator chamber or insulated case, porcelain insulator is adopted to insulate, hot-air (or introduce cold air and heat at insulator chamber or insulated case inner chamber) is introduced in order to ensure insulator dielectric performance, auxiliary equipment electrothermal furnace or electric heater and blower fan are set up in addition, by blower fan by a certain amount of air, the hot blast formed after electrothermal furnace heating, blast insulator chamber or insulated case inner chamber, or blower fan is by a certain amount of cold air, blast insulator chamber or insulated case inner chamber, and within it chamber is directly heated by electric heater, hot blast makes insulator surface temperature be greater than the dew-point temperature of insulator chamber or insulated case inner chamber air, moisture film can not be formed, thus guarantee its insulating properties.
The wet cottrell of the application wins producer's application such as source mining industry through China Petrochemical Industry's Shengli Oil Field, the celestial phosphorous chemical industry in Hubei, Baiyin universe, Lingbao City, excellent, main manifestations is: 1) anode pipe bundle combinations is tight, connects rationally, Stability Analysis of Structures, sectional area is large.2) material of main part is vinyl electroconductive frp, has good conduction, anticorrosion, fire resistance.3) the extension design new structure of anode tube uniqueness, improves removal efficiency, process gas speed, power consumption efficiency and operation stability.4) equipment volume is little, lightweight, can save the investment of 25%, and also making to be applied to atm number desulfurization complexes becomes possibility.On current only China Petrochemical Industry's system catalytic cracking flue gas desulfuring and denitrifying apparatus, what adopt this equipment has the family more than ten such as triumph, Ba Ling, Jingmen, wide petrochemical industry, Qingdao, Maoming, Tianjin, Nanjing, Chang Ling, Wuhan, Jiujiang, Central Plains.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 the utility model detailed description of the invention structural representation;
Fig. 2 the utility model anode tube layout drawing;
Fig. 3 the utility model insulator chamber schematic diagram.
Detailed description of the invention
Below by embodiment, the utility model is specifically described; only for being further described the utility model; can not be interpreted as the restriction to the utility model protection domain, the technician in this field can make some nonessential improvement and adjustment according to the content of above-mentioned utility model to the utility model.
Detailed description of the invention of the present utility model as Figure 1-3, include deduster cylindrical shell 1, deduster cylindrical shell 1 includes dirt pocket 11, and be arranged at air inlet 12 and the gas outlet 13 at dirt pocket 11 two ends, the material of main part of the deduster cylindrical shell described in the present embodiment is vinyl electroconductive frp (CFRP), it is for adhesive with vinyl esters synthetic resin, with glass fibre and goods thereof for reinforcing material, take carbon fiber product as conductive material, and be aided with other auxiliary agent and make, there is good conductivity, lightweight, corrosion-resistant, good flame resistance, the advantages such as strength rigid is good.
In addition, relatively electrostatic precipitation mechanism is provided with between air inlet 12 and gas outlet 13 in the present embodiment deduster cylindrical shell 1, this electrostatic precipitation mechanism includes by the many anode tube 2 be arranged side by side that are parallel to each other, and every root anode tube lumen centers axis is provided with cathode line 3.The cross section of the anode tube 2 described in the present embodiment becomes regular hexagon, and the 2 one-tenth cellular settings that are arranged side by side of many anode tube, and described cathode line 3 is titanium alloy or lead-antimony alloy or C276 material anticorrosive efficient discharge lines.In addition, in order to improve gas treatment removal efficiency and the process gas speed of the application, described anode tube adopts extension design, this anode tube length of the present embodiment is increased to 6 meters by common 4.5 meters, process gas speed can be increased to 1.5 ~ 2 meter per seconds by common 1 meter per second, even more than 2 meter per seconds (raising of process gas speed will cause removal efficiency to reduce).
In addition, in dirt pocket 11, the upper horizontal of anode tube is provided with cathode line upper holder 14, the upper end of described cathode line 3 is fixed on cathode line upper holder 14, and the lower end of cathode line 3 is through anode tube and its end is fixedly installed plummet 31, the present embodiment is in order to ensure the stability that cathode line is fixing, flase floor 19 is fixedly installed relative to the lower horizontal of anode tube 2 in described dirt pocket 11, this flase floor is provided with the grate opening corresponding with every root anode tube 2 lumen centers axis, and described cathode line lower end is through this grate opening, the plummet 31 of end is made to fix on this flase floor 19, the present embodiment can make the fixing-stable of cathode line reliable, thus reduce swing and amplitude of vibration generation, prevent partial short-circuit, it is made to discharge evenly, stable, improve removal efficiency and power consumption efficiency, also described anode tube is made to adopt extension design, rapid-result for possibility to improve gas treatment removal efficiency and to process gas.
In addition, the top extenal fixation of described deduster cylindrical shell 1 is provided with several insulated case 4, with the fixed negative pole line upper holder 14 that insulate, cathode line 3 and cylindrical shell 1 are insulated, cylindrical shell 1 ground connection is also communicated with fixing with load-bearing with anode tube 2, the insulated case 41 that this insulated case 4 has at least 1 band to go between is provided with high direct voltage generating means 5 with extenal fixation and is connected, and the insulated case 41 of described band lead-in wire draws to be connected on cathode line upper holder 14 and to conduct electricity with the upper end of cathode line 3 be connected.The flase floor 19 be fixedly installed relative to the lower horizontal of anode tube 2 in dirt pocket 11 described in the present embodiment, by the insulator chamber 6 of more than at least 2 or 2, be fixed on the bottom of deduster cylindrical shell 1, insulator 61 is fixed with in described insulator chamber 6, insulator chamber 6, deduster cylindrical shell 1 and cathode line 3 or the spacing of each assembly of flase floor 19 that is communicated with it is made to be greater than negative and positive arcing distance, thus by insulator 61, cathode line 3 lower end and end plummet 31 acquisition thereof are fixed, and insulate with cylindrical shell 1.
In addition, in order to improve the insulating properties of insulator chamber 6, the high humility of flue gas after the process of opposing wet dedusting desulfurization, and adapt to the process gas speed after improving, air sparger 62 is added in insulator chamber 6 described in the present embodiment, and by introducing hot-air (or introduce cold air and heat at insulator chamber inner chamber), to reduce the humidity (also namely reducing dew-point temperature) of insulator chamber 6 inner chamber air and to improve the temperature (also namely improve the temperature of insulator 61) of insulator chamber 6 inner chamber air, thus make insulator 61 surface temperature be greater than the dew-point temperature of insulator chamber 6 inner chamber air, can not condensation water film, moisture film is caused to discharge and short circuit, unstability or reduction power consumption efficiency, to guarantee in high humility, insulating properties under high gas velocity.The insulating properties scheme that the present embodiment improves insulator chamber 6 also can be applicable to insulated case 4.
In addition, the bottom of described deduster cylindrical shell 1 is provided with lower chamber 15, described air inlet 12 is arranged at the lower end of lower chamber 15, the upper end of this lower chamber 15 is connected with the water conservancy diversion distributing chamber 16 that cross-sectional area increases from top to bottom gradually, the upper end of described water conservancy diversion distributing chamber 16 is connected with the lower end of dirt pocket 11, in addition, the top of deduster cylindrical shell 1 is provided with exhaust chamber 17, described gas outlet 13 is arranged at the upper end of exhaust chamber 17, the upper end of this exhaust chamber 17 is connected with the collection chamber 18 that cross-sectional area reduces from top to bottom gradually, the lower end of described collection chamber 18 is connected with the upper end of dirt pocket 11.Diversion distribution board 161 and guide fluid grating 162 is designed with in water conservancy diversion distributing chamber 16 described in the present embodiment, process gas flow guiding is evenly distributed, enter in dirt pocket 11 in order, reposefully from lower chamber 15, make it discharge more evenly, stable, in order to the raising of removal efficiency and power consumption efficiency.
In addition, in described deduster cylindrical shell 1, the top of dirt pocket is provided with flusher, this flusher includes cleaning hose 61 and is arranged at the Flushing nozzle 62 on cleaning hose 61.The design of Flushing nozzle 62 described in the present embodiment adopts the special shower nozzle of low discharge, HI high impact, and perform cleaning procedure control, under given conditions, by be gathered in anode tube 2 inner surface containing wet particle, rinse in the circulation fluid system to deduster or in retracting device, anode tube 2 inner surface obtains and effectively rinses, thus make it discharge more evenly, stable, in order to the raising of removal efficiency and power consumption efficiency.
In addition, described insulator chamber 6 or insulated case 4, usual employing porcelain insulator insulate, because the application is wet cottrell, flue gas is containing wet or higher containing foam, porcelain insulator surface easily causes moisture film to discharge, in order to ensure insulator dielectric performance, introduce hot-air (or introduce cold air and heat in insulator chamber 6 or insulated case 4), the present embodiment has set up auxiliary equipment electrothermal furnace or electric heater and blower fan in addition, by blower fan by a certain amount of air, the hot blast formed after electrothermal furnace heating, blast insulator chamber 6 or insulated case 4 inner chamber, or blower fan is by a certain amount of cold air, blast insulator chamber 6 or insulated case 4 inner chamber, and within it chamber is directly heated by electric heater, hot blast makes insulator 61 surface temperature be greater than the dew-point temperature of insulator chamber 6 or insulated case 4 inner chamber air, moisture film can not be formed, thus guarantee its insulating properties.
Claims (10)
1. a wet cottrell, include deduster cylindrical shell, deduster cylindrical shell includes dirt pocket, and be arranged at air inlet and the gas outlet at dirt pocket two ends, relatively electrostatic precipitation mechanism is provided with between air inlet and gas outlet in deduster cylindrical shell, this electrostatic precipitation mechanism includes by the many anode tube be arranged side by side that are parallel to each other, every root anode tube lumen centers axis is provided with cathode line, in dirt pocket, the upper horizontal of anode tube is provided with cathode line upper holder, the upper end of described cathode line is fixed on cathode line upper holder, and the lower end of cathode line is through anode tube and its end is fixedly installed plummet, it is characterized in that: in described dirt pocket, be fixedly installed flase floor relative to the lower horizontal of anode tube, this flase floor is provided with the grate opening corresponding with every root anode tube lumen centers axis, and described cathode line lower end is through this grate opening, the plummet of end is fixed on this flase floor.
2. a kind of wet cottrell according to claim 1, it is characterized in that: the flase floor be fixedly installed relative to the lower horizontal of anode tube in described dirt pocket, by more than at least 2 or 2 insulator chambers, be fixed on the bottom of deduster cylindrical shell, be fixed with insulator in described insulator chamber, make insulator chamber, deduster cylindrical shell and cathode line or the spacing of each assembly of flase floor that is communicated with it be greater than negative and positive arcing distance.
3. a kind of wet cottrell according to claim 2, it is characterized in that: in described insulator chamber, add air sparger, and by introducing hot-air or introducing cold air and heat at insulator chamber inner chamber, to reduce the humidity of insulator chamber inner chamber air and to improve the temperature of insulator chamber inner chamber air, insulator surface temperature is made to be greater than the dew-point temperature of insulator chamber inner chamber air.
4. a kind of wet cottrell according to claim 1, it is characterized in that: the bottom of described deduster cylindrical shell is provided with lower chamber, described air inlet is arranged at the lower end of lower chamber, the upper end of this lower chamber is connected with the water conservancy diversion distributing chamber that cross-sectional area increases from top to bottom gradually, the described upper end of water conservancy diversion distributing chamber is connected with the lower end of dirt pocket, is designed with diversion distribution board and guide fluid grating in described water conservancy diversion distributing chamber.
5. a kind of wet cottrell according to claim 4, it is characterized in that: the top of deduster cylindrical shell is provided with exhaust chamber, described gas outlet is arranged at the upper end of exhaust chamber, the upper end of this exhaust chamber is connected with the collection chamber that cross-sectional area reduces from top to bottom gradually, and the lower end of described collection chamber is connected with the upper end of dirt pocket.
6. a kind of wet cottrell according to claim 5, is characterized in that: described deduster cylindrical shell adopts vinyl electroconductive frp to make.
7. a kind of wet cottrell according to claim 1, is characterized in that: the cross section of described anode tube becomes regular hexagon, and many anode tube become the cellular setting that is arranged side by side.
8. a kind of wet cottrell according to claim 1, is characterized in that: described cathode line is titanium alloy or lead-antimony alloy or C276 material anticorrosive efficient discharge lines.
9. a kind of wet cottrell according to claim 1, is characterized in that: the length of described anode tube is at least 6 meters.
10. a kind of wet cottrell according to claim 1, it is characterized in that: in described deduster cylindrical shell, the top of dirt pocket is provided with flusher, this flusher includes cleaning hose and is arranged at the Flushing nozzle on cleaning hose, described Flushing nozzle design adopts the special shower nozzle of low discharge, HI high impact, and performs cleaning procedure control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520948929.7U CN205146450U (en) | 2015-11-24 | 2015-11-24 | Wet -type electrostatic dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520948929.7U CN205146450U (en) | 2015-11-24 | 2015-11-24 | Wet -type electrostatic dust collector |
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| CN205146450U true CN205146450U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520948929.7U Active CN205146450U (en) | 2015-11-24 | 2015-11-24 | Wet -type electrostatic dust collector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327779A (en) * | 2015-11-24 | 2016-02-17 | 浙江双屿实业有限公司 | Wet-type electrostatic precipitator |
| CN107398157A (en) * | 2016-05-19 | 2017-11-28 | 江苏中矿重型装备有限公司 | Desulfurization and the two-in-one absorption tower of wet cottrell |
-
2015
- 2015-11-24 CN CN201520948929.7U patent/CN205146450U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105327779A (en) * | 2015-11-24 | 2016-02-17 | 浙江双屿实业有限公司 | Wet-type electrostatic precipitator |
| CN107398157A (en) * | 2016-05-19 | 2017-11-28 | 江苏中矿重型装备有限公司 | Desulfurization and the two-in-one absorption tower of wet cottrell |
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