CN102909132A - Direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device - Google Patents
Direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device Download PDFInfo
- Publication number
- CN102909132A CN102909132A CN2012104312785A CN201210431278A CN102909132A CN 102909132 A CN102909132 A CN 102909132A CN 2012104312785 A CN2012104312785 A CN 2012104312785A CN 201210431278 A CN201210431278 A CN 201210431278A CN 102909132 A CN102909132 A CN 102909132A
- Authority
- CN
- China
- Prior art keywords
- framework
- pressure stage
- earthing pole
- polar curve
- pressure
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device. The technical scheme is that an outlet end of a static coagulation device (2) is fixedly connected with the inlet end of a static dust removal device (9), 2-20 high voltage pole grating frames are arranged in a shell of the static coagulation device (2), the number of grounding pole grating frames in the shell is one more than the number of the high voltage pole grating frames, the high voltage pole grating frames and the grounding pole grating frames are suspended at the inner wall of a top plate of the shell of the static coagulation device (2) by metal suspension rods (6) and insulators (7) and are equidistantly and alternatively installed in parallel, high voltage pole wires (4) in the high voltage pole grating frames and the grounding pole wires (14) in the grounding pole grating frames are equidistantly and alternatively arranged in a staggering mode, and a high voltage end of a direct current high voltage high frequency pulse power supply (3) is connected with the high voltage pole grating frames and a low voltage end of the direct current high voltage high frequency pulse power supply (3) is connected with the grounding pole grating frames. The direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device is simple in structure and good in system safety, and the static coagulation effect and dust removal efficiency on fine particles can be further improved.
Description
Technical field
The invention belongs to a kind of static coalescence device, especially relate to the bipolar corona grid of a kind of high direct voltage high-frequency impulse static coalescence dust arrester.
Background technology
The dedusting of static coalescence is by electrostatic force charged fine grit to be aggregated into behind the larger particles more a kind of purification method of dedusting first.One of the dedusting of static coalescence is considered to control at present PM2.5, and even the effective method of PM1 (Yang Linjun. Combustion Source fine particle pollution control technology, Chemical Industry Press, Beijing: 2011).Static coalescence technology is mainly divided three kinds: the static coalescence in permanent electric field; Static coalescence in the low-frequency alternating electric field; Static coalescence in the high-frequency alternating electric field.
1, the static coalescence in permanent electric field
For making dust generation static coalescence, must make first dust band heteropolarity electric charge (hereinafter to be referred as bipolar charge).The static coalescence research of bipolar charge dust in permanent electric field start from the end of the eighties in last century (Eliasson B etc. bipolar charge particulate coalescence in the flue coalescer. the aerosol science magazine, 1987,18 (8): 869-872), the static coalescence of bipolar charge dust in permanent electric field has obvious shortcoming: (1) is unipolar because of per share charged particle stream, be mutual exclusion between particle, be unfavorable for coalescence; (2) for making positively charged particle flux and electronegative particle flux can mix more fully coalescence district head.
2, the static coalescence in the low-frequency alternating electric field
The probability that mutually collides for increasing the bipolar charge dust, introducing alternating electric field power is a kind of effective ways.The research of low-frequency alternating electric field static coalescence starts from the mid-90 in last century, the people such as Kildes (Kildes J etc. the experimental study of particulate coalescence in the alternating electric field. aerosol science and technology. 1995,23 (7): 603-610) and the people such as Watanabe (Watanabe T etc. the coalescence of submicron particle in the static coalescer. the electrostatics magazine, 1995,34 (4): 367-383) apply the low-frequency ac high pressure in the coalescence district, charged particle produces vibration under the effect of alternating electric field power, promoted the coalescence between the bipolar charge particulate.In the low-frequency alternating electric field, to realize bipolar static coalescence, need at least 3 high voltage sourcies: make dust charge heteropolarity electric charge need 1 positive high voltage dc source and 1 negative high voltage dc source, make the dust coalescence need 1 ac high voltage source.The high voltage source quantity of using is many, means that cost is high.
3, the static coalescence in the high-frequency alternating electric field
Obviously, the key factor that affects bipolar charge dust electrostatic coalescence speed is the frequency of alternating electric field.Many studies confirm that, when frequency is higher than 50Hz, the very fast decay of static coalescence effect (Y. Koizumi M etc. the coagulation coefficient of bipolar charge particulate is estimated. electrostatics magazine, 2000,48 (1): 93-101; Towards dawn is eastern, old precious intelligence Colbeck I. two-region coalescer coalescence and collection bipolar charge aerosol. environmental science magazine, 2001,13 (3): 276-279; Liu Dong etc. alternating electric field frequency is on the experimental study of charged fine dust coalescence impact. scientific and technological Leader, 2009,27 (5): 61-64).Reason is, although powder dust particle is very little, always has effect of inertia, and the alternating electric field power that too high frequency produces can make the amplitude of particle reduce, even as you were.So the frequency of the static coalescence in the low-frequency alternating electric field is generally about 10Hz.
Yet when frequency is increased to more than thousands of volts, coalescence effect meeting strengthens suddenly.The employed alternating current voltage frequency of Cosa/Tron static coalescence apparatus that U.S. CRS produces but surpasses 100,000 Hz(Cao Yang, Lang Siwei. introduce a kind of novel air self-cleaning system. and architecture science, 1998,14 (1): 58-61).The Cosa/Tron static coalescer of practical application in industry is that the high-frequency alternating current by the high voltage direct current of 25kV and 0.65kV is added on the electric grid collection group forming frequency up to the compound field of 150,000 Hz.
This " hyperfrequency " static condensation and mechanism be difficult to the cohesion of alternating electric field power explain (towards dawn east write. the aerosol science technical foundation. Beijing: China Environmental Science Press, 2012).Think qualitatively: bipolar charge dust (positively charged dust and electronegative dust) is done relative motion under the effect of dc high voltage electric field power, simultaneously, high-frequency alternating electric field action power has strengthened random motion and the generating collision effect of bipolar charge dust, has accelerated interparticle coalescence.
The high-frequency electrostatic coalescence of Cosa/Tron static coalescer is a technological progress with milestone significance: Cosa/Tron static coalescer is only realized the bipolar charge of grit with 1 DC high-voltage power supply, reduced system cost; The voltage of the AC power that Cosa/Tron static coalescer is used only has 0.65kV, has improved Security of the system.
But it is complicated that the shortcoming of Cosa/Tron static coalescer is electrode structure; The ac pulse voltage that Cosa/Tron static coalescer provides is very low, has limited the further raising of the vibration coalescence effect of bipolar charge dust.
In sum, the problem of the existence of the static coalescence technology in traditional alternating electric field is:
(1) need many AC and DC power supplys could realize the charged and bipolar static coalescence of grit, so the equipment initial outlay is large, operating cost is high;
(2) the static coalescence dust pelletizing system in traditional alternating electric field is complicated, pre-charging area need be set, or take the AC and DC combination electrode, and volume is large, complex structure;
(3) no matter be low-frequency ac high voltage source or high-frequency ac high voltage source, the subject matter in application is reliability and poor stability.Ac high voltage source is high to the insulating requirements of equipment, is out of order easily.Ac high voltage source is compared with DC high-voltage power supply has higher danger.
Summary of the invention
The present invention is intended to overcome the prior art defective, task provide a kind of simple in structure, security of system good, can further improve to dust, especially to the static coalescence of fine dust (hereinafter to be referred as micronic dust) and the bipolar corona grid of the high direct voltage high-frequency impulse static coalescence dust arrester of efficiency of dust collection.
For realizing above-mentioned task, the technical solution adopted in the present invention is: this device is by inlet box, static coalescer, electrostatic precipitator and go out gas tank and form, the entrance point of inlet box and static coalescer is fixedly connected, the port of export of static coalescer and the entrance point of electrostatic precipitator are fixedly connected, the port of export of electrostatic precipitator with go out gas tank and be fixedly connected.
The structure of static coalescer is: be provided with high-pressure stage framework and earthing pole framework in static coalescer housing, the high-pressure stage framework is 2 ~ 20, and the quantity of earthing pole framework is Duoed 1 than the quantity of the high-pressure stage framework that is provided with in the static coalescer housing.High-pressure stage framework and earthing pole framework are parallel to each other, and high-pressure stage framework and earthing pole framework are equidistant and alternately install.
Be provided with high pressure polar curve and high-pressure stage template in each high-pressure stage framework, high pressure polar curve and high-pressure stage template are arranged alternately mutually, high pressure polar curve and high-pressure stage template add up to 7 or 9 or 11 or 13, high pressure polar curve quantity in each high-pressure stage framework is Duoed 1 than high-pressure stage template quantity, the upper end of high pressure polar curve and high-pressure stage template connects with the upper side frame of high-pressure stage framework, the lower end of high pressure polar curve and high-pressure stage template connects with the lower frame of high-pressure stage framework, consists of high-pressure stage palisade framework.
Be provided with earthing pole template and ground connection polar curve in each earthing pole framework, earthing pole template and ground connection polar curve are arranged alternately mutually, earthing pole template and ground connection polar curve add up to 7 or 9 or 11 or 13, earthing pole template quantity in each earthing pole framework is Duoed 1 than ground connection polar curve quantity, the upper end of earthing pole template and ground connection polar curve connects with the upper side frame of earthing pole framework, the lower end of earthing pole template and ground connection polar curve connects with the lower frame of earthing pole framework, consists of earthing pole palisade framework.
Every high pressure polar curve in the high-pressure stage palisade framework faces corresponding earthing pole template in the earthing pole palisade framework successively, every high-pressure stage template in the high-pressure stage palisade framework faces in the earthing pole palisade framework corresponding ground connection polar curve successively, and namely the high pressure polar curve in the static coalescer and ground connection polar curve are equidistantly and alternately are staggeredly arranged.The high-pressure side of high direct voltage high frequency pulse power supply is connected with high-pressure stage palisade framework, and the low-pressure end of high direct voltage high frequency pulse power supply is connected with earthing pole palisade framework.
The structure of static coalescer or: be provided with high-pressure stage framework and earthing pole framework in static coalescer housing, the high-pressure stage framework is 2 ~ 20, and the quantity of earthing pole framework is Duoed 1 than the quantity of the high-pressure stage framework that is provided with in the static coalescer housing.High-pressure stage framework and earthing pole framework are parallel to each other, and high-pressure stage framework and earthing pole framework are equidistant and alternately install.
Be provided with equably 7-13 root high pressure polar curve in each high-pressure stage framework, the top and bottom of every high pressure polar curve respectively with upper side frame and the corresponding connection of lower frame of high-pressure stage framework, consist of high-pressure stage palisade framework.Be provided with equably the ground connection polar curve in each earthing pole framework, ground connection polar curve quantity in the earthing pole framework is Duoed 1 than the high pressure polar curve quantity in the corresponding high-pressure stage framework, the top and bottom of every ground connection polar curve respectively with upper side frame and the corresponding connection of lower frame of high-pressure stage framework, consist of earthing pole palisade framework.
Every high pressure polar curve in the high-pressure stage palisade framework faces the gap of corresponding ground connection polar curve in the earthing pole palisade framework successively, every ground connection polar curve in the earthing pole palisade framework faces in the high-pressure stage palisade framework gap of corresponding high pressure polar curve successively, and namely the high pressure polar curve in the high-pressure stage palisade framework in the static coalescer and the ground connection polar curve in the earthing pole palisade framework are equidistantly and alternately are staggeredly arranged; The high-pressure side of high direct voltage high frequency pulse power supply is connected with high-pressure stage palisade framework, and the low-pressure end of high direct voltage high frequency pulse power supply is connected with earthing pole palisade framework.
The mode that the port of export of described static coalescer and the entrance point of electrostatic precipitator are fixedly connected has two kinds: a kind of is directly to adopt flange to be fixedly connected; Another kind is that the port of export of static coalescer and the entrance point of electrostatic precipitator are fixedly connected by pipeline.
Described high-pressure stage framework is identical with the shape of described earthing pole framework, be rectangular frame structure, the height of rectangular frame is identical, be 0.80 ~ 0.95 times of inside wall height of static coalescer housing, the length of rectangular frame is 0.80 ~ 0.90 times of inwall length of static coalescer housing, and the width of rectangular frame is 20 ~ 40mm; High-pressure stage framework and earthing pole framework are hung top board in static coalescer inner walls by metal suspension rod and insulator respectively.
Described high pressure polar curve and ground connection polar curve are a kind of in round wire, RS type prickle wire, astroid, jaggies and the angle steel prickle wire.
Described high-pressure stage template and earthing pole template are the C template or are Z-shaped plate.
Because adopt technique scheme, the present invention has adopted high direct voltage high-frequency impulse power supply mode, and high-pressure stage palisade framework and earthing pole palisade framework are staggeredly arranged.After dust-contained airflow enters electric field between high pressure polar curve and the ground connection polar curve, near the dust of high pressure polar curve by lotus with negative electricity, near the dust of ground connection polar curve by lotus with positive electricity, under the effect of dc high voltage electric field power, the dust of bear electricity and lotus positive electricity is done relative motion, electric field middle part between high-pressure stage palisade framework and earthing pole palisade framework, relative enrichment appears in Charged.Under the effect of high-frequency impulse electric field force, Charged fast vibration collision coalescence, the electrostatic precipitator that the dust group behind the coalescence is connected in behind the coalescence device captures.
Dust-contained airflow enters in the static coalescer by inlet box, and dust perhaps enters the electric field between high-pressure stage template and the ground connection polar curve at the electric field that enters under the conveying of air-flow between high pressure polar curve and the earthing pole template.When the high direct voltage high frequency pulse power supply was powered, if dust at first enters the electric field between high pressure polar curve and the earthing pole template, the high pressure polar curve produced negative corona discharge, anion releasing, dust by lotus with negative electricity.Under the electric field force effect, moved to the earthing pole template with mode of vibration by the dust of lotus with negative electricity, be deposited in the surface of earthing pole template, finally fall into the ash bucket of static coalescer bottom.
The bear of collection at large electricity dust is brought into by the electric field between high-pressure stage template and ground connection polar curve by air-flow, and the ground connection polar curve produces anti-electric-corona discharge, discharges cation, dust by lotus with positive electricity.Under the electric field force effect, moved to the high-pressure stage template with mode of vibration by the dust of lotus with positive electricity, be deposited in the surface of high-pressure stage template, finally fall into the ash bucket of static coalescer bottom.If the lotus positive electricity dust of collection at large collides with the bear electricity dust that just enters this electric field, can become dust group (bulky grain) by coalescence.The coalescence dust of collection at large group is connected in the electrostatic precipitator behind the coalescence device with being moved into of air-flow and is captured, and the air-flow after the purification is discharged from going out gas tank.
The present invention compared with prior art has following good effect:
(1) existing static coalescer adopts ac high voltage source, and ac high voltage source has higher risk; And the present invention adopts the high direct voltage high frequency pulse power supply, and is safe.
(2) existing static coalescer will be realized the charged and bipolar static coalescence of grit, need 2 high voltage sourcies (needing 1 DC high-voltage power supply and 1 ac high voltage source such as Cosa/Tron static coalescer), or need 3 high voltage sourcies (needing 2 direct currents and 1 ac high voltage source such as Watanabe static coalescer); And the present invention only can realize the charged and bipolar static coalescence of dust simultaneously with a high direct voltage high frequency pulse power supply, decrease the initial input cost of equipment.
(3) existing static coalescer complex structure, need 3 electrodes such as Cosa/Tron static coalescer, between corona grid high-pressure stage and corona grid earthing pole, the alternating voltage auxiliary electrode be need add, the pre-charging area of high direct voltage and ac high-voltage coalescence district needed such as Watanabe static coalescer; And the present invention only needs high-pressure stage and earthing pole, and the high-pressure stage of static coalescer is identical with the electrode form of earthing pole, realizes simultaneously the charged and coalescence of dust with a high direct voltage high frequency pulse power supply in an electric field, so simple in structure.
(4) existing static coalescer (Cosa/Tron static coalescer) pulse voltage amplitude little (650V); And the pulse voltage amplitude of high direct voltage high frequency pulse power supply output of the present invention can reach 1 ~ 50,000 volt, has strengthened significantly the generating collision coalescence effect of bipolar charge dust, thereby has further improved static coalescence effect and efficiency of dust collection to micronic dust.
(5) practical.The present invention adopts existing electrostatic precipitator corona wire and template commonly used, and processing and fabricating is very easy.
Therefore, the present invention is not only simple in structure good with security of system, and can further improve static coalescence effect and efficiency of dust collection to micronic dust.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is another kind of structural representation of the present invention;
Fig. 4 is the plan structure schematic diagram of Fig. 3.
The specific embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments, is not limiting the scope of the invention.
Embodiment 1
The bipolar corona grid of a kind of high direct voltage high-frequency impulse static coalescence dust arrester.As shown in Figure 1, this device is by inlet box 1, static coalescer 2, electrostatic precipitator 9 with go out gas tank 10 and form.Inlet box 1 is fixedly connected with the entrance point of static coalescer 2, and the entrance point of the port of export of static coalescer 2 and electrostatic precipitator 9 directly adopts flange 8 to be fixedly connected, the port of export of electrostatic precipitator 9 with go out gas tank 10 and be fixedly connected.
The structure of static coalescer 2 is as shown in Figure 2: be provided with high-pressure stage framework 11 and earthing pole framework 15 in static coalescer 2 housings, high-pressure stage framework 11 is 2, and earthing pole framework 15 is 3.High-pressure stage framework 11 and earthing pole framework 15 are parallel to each other, and high-pressure stage framework 11 and earthing pole framework 15 are equidistant and alternately install.High-pressure stage framework 11 and earthing pole framework 15 are hung top board in static coalescer 2 inner walls by metal suspension rod 6 and insulator 7 respectively.
Be provided with high pressure polar curve 4 and high-pressure stage template 5 in each high-pressure stage framework 11, high pressure polar curve 4 and high-pressure stage template 5 are arranged alternately mutually, high pressure polar curve 4 and high-pressure stage template 5 add up to 7, high pressure polar curve 4 in each high-pressure stage framework 11 is 4, high-pressure stage template 5 is 3, the upper end of high pressure polar curve 4 and high-pressure stage template 5 connects with the upper side frame of high-pressure stage framework 11, and the lower end of high pressure polar curve 4 and high-pressure stage template 5 connects with the lower frame of high-pressure stage framework 11, consists of high-pressure stage palisade framework.
Be provided with earthing pole template 13 and ground connection polar curve 14 in each earthing pole framework 15, earthing pole template 13 and ground connection polar curve 14 are arranged alternately mutually, earthing pole template 13 and ground connection polar curve 14 add up to 7, earthing pole template 13 in each earthing pole framework 15 is 4, ground connection polar curve 14 is 3, the upper end of earthing pole template 13 and ground connection polar curve 14 connects with the upper side frame of earthing pole framework 15, the lower end of earthing pole template 13 and ground connection polar curve 14 connects with the lower frame of earthing pole framework 15, consists of earthing pole palisade framework.
Every high pressure polar curve 4 in the high-pressure stage palisade framework faces corresponding earthing pole template 13 in the earthing pole palisade framework successively, every high-pressure stage template 5 in the high-pressure stage palisade framework faces in the earthing pole palisade framework corresponding ground connection polar curve 14 successively, and namely the high pressure polar curve 4 in the static coalescer 2 and ground connection polar curve 14 are equidistantly and alternately are staggeredly arranged.The high-pressure side of high direct voltage high frequency pulse power supply 3 is connected with high-pressure stage palisade framework, and the low-pressure end of high direct voltage high frequency pulse power supply 3 is connected with earthing pole palisade framework.
In the present embodiment:
Described high-pressure stage framework 11 is identical with the shape of described earthing pole framework 15, be rectangular frame structure, the height of rectangular frame is identical, be 0.80 ~ 0.90 times of inside wall height of static coalescer 2 housings, the length of rectangular frame is 0.80 ~ 0.85 times of inwall length of static coalescer 2 housings, and the width of rectangular frame is 20 ~ 30mm;
Described high pressure polar curve 4 and ground connection polar curve 14 are RS type prickle wire.
Described high-pressure stage template 5 and earthing pole template 13 are the C template.
Embodiment 2
The bipolar corona grid of a kind of high direct voltage high-frequency impulse static coalescence dust arrester.This device is except following structure and technical parameter, and all the other are with embodiment 1.
The entrance point of the port of export of static coalescer 2 and electrostatic precipitator 9 is fixedly connected by pipeline;
High-pressure stage framework 11 is 3 ~ 10, and the quantity of earthing pole framework is Duoed 1 than the quantity of the high-pressure stage framework that is provided with in static coalescer 2 housings;
High pressure polar curve 4 and high-pressure stage template 5 add up to 9 or 11 or 13, high pressure polar curve 4 quantity in each high-pressure stage framework 11 are Duoed 1 than high-pressure stage template 5 quantity;
Earthing pole template 13 and ground connection polar curve 14 add up to 9 or 11 or 13;
High pressure polar curve 4 and ground connection polar curve 14 are a kind of in astroid, jaggies and the angle steel prickle wire.
Embodiment 3
The bipolar corona grid of a kind of high direct voltage high-frequency impulse static coalescence dust arrester.As shown in Figure 3, this device is by inlet box 1, static coalescer 2, electrostatic precipitator 9 with go out gas tank 10 and form.Inlet box 1 is fixedly connected with the entrance point of static coalescer 2, and the entrance point of the port of export of static coalescer 2 and electrostatic precipitator 9 directly adopts flange 8 to be fixedly connected, the port of export of electrostatic precipitator 9 with go out gas tank 10 and be fixedly connected.
The structure of static coalescer 2 is: be provided with high-pressure stage framework and earthing pole framework in static coalescer 2 housings, the high-pressure stage framework is 11 ~ 15, and the quantity of earthing pole framework is Duoed 1 than the quantity of the high-pressure stage framework that is provided with in static coalescer 2 housings.High-pressure stage framework 11 and earthing pole framework 15 are parallel to each other, and high-pressure stage framework 11 and earthing pole framework 15 are equidistant and alternately install.High-pressure stage framework 11 and earthing pole framework 15 are hung top board in static coalescer 2 inner walls by metal suspension rod 6 and insulator 7 respectively.
Be provided with equably 7 high pressure polar curves 4 in each high-pressure stage framework 11, the top and bottom of every high pressure polar curve 4 respectively with upper side frame and the corresponding connection of lower frame of high-pressure stage framework 11, consist of high-pressure stage palisade framework.Be provided with equably 8 ground connection polar curves 14 in each earthing pole framework 15, the top and bottom of every ground connection polar curve 14 respectively with upper side frame and the corresponding connection of lower frame of high-pressure stage framework 11, consist of earthing pole palisade framework.
Every high pressure polar curve 4 in the high-pressure stage palisade framework faces the gap of corresponding ground connection polar curve 14 in the earthing pole palisade framework successively, every ground connection polar curve 14 in the earthing pole palisade framework faces in the high-pressure stage palisade framework gap of corresponding high pressure polar curve 4 successively, and namely the high pressure polar curve 4 in the high-pressure stage palisade framework in the static coalescer 2 and the ground connection polar curve 14 in the earthing pole palisade framework are equidistantly and alternately are staggeredly arranged; The high-pressure side of high direct voltage high frequency pulse power supply 3 is connected with high-pressure stage palisade framework, and the low-pressure end of high direct voltage high frequency pulse power supply 3 is connected with earthing pole palisade framework.
In the present embodiment, high-pressure stage framework 11 is identical with the shape of described earthing pole framework 15, be rectangular frame structure, the height of rectangular frame is identical, be 0.90 ~ 0.95 times of inside wall height of static coalescer 2 housings, the length of rectangular frame is 0.85 ~ 0.90 times of inwall length of static coalescer 2 housings, and the width of rectangular frame is 30 ~ 40mm.
The high pressure polar curve 4 of present embodiment and ground connection polar curve 14 are round wire; High-pressure stage template 5 and earthing pole template 13 are Z-shaped plate.
Embodiment 4
The bipolar corona grid of a kind of high direct voltage high-frequency impulse static coalescence dust arrester.This device is except following structure and technical parameter, and all the other are with embodiment 3.
The entrance point of the port of export of static coalescer 2 and electrostatic precipitator 9 is fixedly connected by pipeline;
High-pressure stage framework 11 is 16 ~ 20, and the quantity of earthing pole framework is Duoed 1 than the quantity of the high-pressure stage framework that is provided with in static coalescer 2 housings;
Be provided with equably 8 ~ 13 high pressure polar curves 4 in each high-pressure stage framework 11, the quantity of the ground connection polar curve 14 in the earthing pole framework 15 is Duoed 1 than the quantity of the high pressure polar curve 4 in the corresponding high-pressure stage framework 11;
High pressure polar curve 4 and ground connection polar curve 14 are a kind of in astroid, jaggies and the angle steel prickle wire.
This specific embodiment has adopted high direct voltage high-frequency impulse power supply mode, and high-pressure stage palisade framework and earthing pole palisade framework are staggeredly arranged.After dust-contained airflow enters electric field between high pressure polar curve 4 and the ground connection polar curve 14, near the dust of high pressure polar curve 4 by lotus with negative electricity, near the dust of ground connection polar curve 14 by lotus with positive electricity, under the effect of dc high voltage electric field power, the dust of bear electricity and lotus positive electricity is done relative motion, electric field middle part between high-pressure stage palisade framework and earthing pole palisade framework, relative enrichment appears in Charged.Under the effect of high-frequency impulse electric field force, Charged fast vibration collision coalescence, the electrostatic precipitator 9 that the dust group behind the coalescence is connected in behind the coalescence device captures.
Dust-contained airflow enters in the static coalescer 2 by inlet box 1, and dust perhaps enters the electric field between high-pressure polar plate 5 and the ground connection polar curve 14 at the electric field that enters under the conveying of air-flow between high pressure polar curve 4 and the ground connection pole plate 13.When high direct voltage high frequency pulse power supply 3 power supply, if dust at first enters the electric field between high pressure polar curve 4 and the ground connection pole plate 13, high pressure polar curve 4 produces negative corona discharges, anion releasing, dust by lotus with negative electricity.Under the electric field force effect, moved to ground connection pole plate 13 with mode of vibration by the dust of lotus with negative electricity, be deposited in the surface of ground connection pole plate 13, finally fall into the ash bucket 12 of static coalescer 2 bottoms.
The bear of collection at large electricity dust is brought into electric field by 14 of high-pressure polar plate 5 and ground connection polar curves by air-flow, and ground connection polar curve 14 produces anti-electric-corona discharges, discharges cation, dust by lotus with positive electricity.Under the electric field force effect, moved to high-pressure polar plate 5 with mode of vibration by the dust of lotus with positive electricity, be deposited in the surface of high-pressure polar plate 5, finally fall into the ash bucket 12 of static coalescer 2 bottoms.If the lotus positive electricity dust of collection at large collides with the bear electricity dust that just enters this electric field, can become dust group (bulky grain) by coalescence.The coalescence dust of collection at large group is connected in the electrostatic precipitator 9 behind the coalescence device with being moved into of air-flow and is captured, and the air-flow after the purification is discharged from going out gas tank 10.
This specific embodiment compared with prior art has following good effect:
(1) existing static coalescer adopts the ac high voltage source power supply, and ac high voltage source has higher risk; And this specific embodiment adopts 3 power supplies of high direct voltage high frequency pulse power supply, and is safe.
(2) existing static coalescer will be realized the charged and bipolar static coalescence of grit, need 2 high voltage sourcies (needing 1 DC high-voltage power supply and 1 ac high voltage source such as Cosa/Tron static coalescer), or need 3 high voltage sourcies (needing 2 direct currents and 1 ac high voltage source such as Watanabe static coalescer); And this specific embodiment only can realize the charged and bipolar static coalescence of dust simultaneously with a high direct voltage high frequency pulse power supply 3, decrease the initial input cost of equipment.
(3) existing static coalescer complex structure, need 3 electrodes such as Cosa/Tron static coalescer, between corona grid high-pressure stage and corona grid earthing pole, the alternating voltage auxiliary electrode be need add, the pre-charging area of high direct voltage and ac high-voltage coalescence district needed such as Watanabe static coalescer; And this specific embodiment only needs high-pressure stage and earthing pole, namely only needs high-pressure stage palisade framework and earthing pole palisade framework, can realize simultaneously the charged and coalescence of dust with a high direct voltage high frequency pulse power supply 3 in an electric field, so simple in structure.
(4) existing static coalescer (Cosa/Tron static coalescer) pulse voltage amplitude little (650V); And the pulse voltage amplitude of high direct voltage high frequency pulse power supply 3 outputs that this specific embodiment adopts can reach 1 ~ 50,000 volt, strengthen significantly the generating collision coalescence effect of bipolar charge dust, thereby further improved static coalescence effect and efficiency of dust collection to micronic dust.
(5) practical.This specific embodiment adopts existing electrostatic precipitator corona wire and template commonly used, and processing and fabricating is very easy.
Therefore, this specific embodiment is not only simple in structure good with security of system, and can further improve static coalescence effect and efficiency of dust collection to micronic dust.
Claims (5)
1. the bipolar corona grid of high direct voltage high-frequency impulse static coalescence dust arrester, it is characterized in that this device by inlet box (1), static coalescer (2), electrostatic precipitator (9) and go out gas tank (10) forming, inlet box (1) is fixedly connected with the entrance point of static coalescer (2), the entrance point of the port of export of static coalescer (2) and electrostatic precipitator (9) is fixedly connected, the port of export of electrostatic precipitator (9) with go out gas tank (10) and be fixedly connected;
The structure of static coalescer (2) is: be provided with high-pressure stage framework (11) and earthing pole framework (15) in static coalescer (2) housing, high-pressure stage framework (11) is 2 ~ 20, and the quantity of earthing pole framework (15) is Duoed 1 than the quantity of the interior high-pressure stage framework (11) that is provided with of static coalescer (2) housing; High-pressure stage framework (11) and earthing pole framework (15) are parallel to each other, and high-pressure stage framework (11) and earthing pole framework (15) are equidistant and alternately install;
Be provided with high pressure polar curve (4) and high-pressure stage template (5) in each high-pressure stage framework (11), high pressure polar curve (4) and high-pressure stage template (5) are arranged alternately mutually, high pressure polar curve (4) and high-pressure stage template (5) add up to 7, or 9, or 11, or 13, the quantity of the high pressure polar curve (4) in each high-pressure stage framework (11) is Duoed 1 than the quantity of high-pressure stage template (5), the upper end of high pressure polar curve (4) and high-pressure stage template (5) connects with the upper side frame of high-pressure stage framework (11), the lower end of high pressure polar curve (4) and high-pressure stage template (5) connects with the lower frame of high-pressure stage framework (11), consists of high-pressure stage palisade framework;
Be provided with earthing pole template (13) and ground connection polar curve (14) in each earthing pole framework (15), earthing pole template (13) and ground connection polar curve (14) are arranged alternately mutually, earthing pole template (13) and ground connection polar curve (14) add up to 7, or 9, or 11, or 13, the quantity of the earthing pole template (13) in each earthing pole framework (15) is Duoed 1 than the quantity of ground connection polar curve (14), the upper end of earthing pole template (13) and ground connection polar curve (14) connects with the upper side frame of earthing pole framework (15), the lower end of earthing pole template (13) and ground connection polar curve (14) connects with the lower frame of earthing pole framework (15), consists of earthing pole palisade framework;
Every high pressure polar curve (4) in the high-pressure stage palisade framework faces corresponding earthing pole template (13) in the earthing pole palisade framework successively, every high-pressure stage template (5) in the high-pressure stage palisade framework faces in the earthing pole palisade framework corresponding ground connection polar curve (14) successively, and namely the high pressure polar curve (4) in the static coalescer (2) and ground connection polar curve (14) are equidistantly and alternately are staggeredly arranged; The high-pressure side of high direct voltage high frequency pulse power supply (3) is connected with high-pressure stage palisade framework, and the low-pressure end of high direct voltage high frequency pulse power supply (3) is connected with earthing pole palisade framework;
The structure of static coalescer (2) or: in static coalescer (2) housing, be provided with high-pressure stage framework (11) and earthing pole framework (15), high-pressure stage framework (11) is 2 ~ 20, and the quantity of earthing pole framework (15) is Duoed 1 than the quantity of the interior high-pressure stage framework (11) that is provided with of static coalescer (2) housing; High-pressure stage framework (11) and earthing pole framework (15) are parallel to each other, and high-pressure stage framework (11) and earthing pole framework (15) are equidistant and alternately install;
Be provided with equably 7-13 root high pressure polar curve (4) in each high-pressure stage framework (11), the top and bottom of every high pressure polar curve (4) are divided
Not with upper side frame and the corresponding connection of lower frame of high-pressure stage framework (11), formation high-pressure stage palisade framework; Each earthing pole framework (15)
In be provided with equably ground connection polar curve (14), the quantity of the ground connection polar curve (14) in the earthing pole framework (15) is Duoed 1 than the quantity of the high pressure polar curve (4) in the corresponding high-pressure stage framework (11), the top and bottom of every ground connection polar curve (14) respectively with upper side frame and the corresponding connection of lower frame of high-pressure stage framework (11), consist of earthing pole palisade framework;
Every high pressure polar curve (4) in the high-pressure stage palisade framework faces the gap of corresponding ground connection polar curve (14) in the earthing pole palisade framework successively, every ground connection polar curve (14) in the earthing pole palisade framework faces in the high-pressure stage palisade framework gap of corresponding high pressure polar curve (4) successively, and namely the high pressure polar curve (4) in the high-pressure stage palisade framework in the static coalescer (2) and the ground connection polar curve (14) in the earthing pole palisade framework are equidistantly and alternately are staggeredly arranged; The high-pressure side of high direct voltage high frequency pulse power supply (3) is connected with high-pressure stage palisade framework, and the low-pressure end of high direct voltage high frequency pulse power supply (3) is connected with earthing pole palisade framework.
2. the bipolar corona grid of high direct voltage high-frequency impulse according to claim 1 static coalescence dust arrester, it is characterized in that the mode that the entrance point of the port of export of described static coalescer (2) and electrostatic precipitator (9) is fixedly connected is two kinds: a kind of is directly to adopt flange (8) to be fixedly connected; Another kind is that the port of export of static coalescer (2) and the entrance point of electrostatic precipitator (9) are fixedly connected by pipeline.
3. the bipolar corona grid of high direct voltage high-frequency impulse according to claim 1 static coalescence dust arrester, it is characterized in that described high-pressure stage framework (11) is identical with the shape of described earthing pole framework (15), be rectangular frame structure, the height of rectangular frame is identical, be 0.80 ~ 0.95 times of inside wall height of static coalescer (2) housing, the length of rectangular frame is 0.80 ~ 0.90 times of inwall length of static coalescer (2) housing, and the width of rectangular frame is 20 ~ 40mm; High-pressure stage framework (11) and earthing pole framework (15) are hung top board in static coalescer (2) inner walls by metal suspension rod (6) and insulator (7) respectively.
4. the bipolar corona grid of high direct voltage high-frequency impulse according to claim 1 static coalescence dust arrester is characterized in that a kind of in round wire, RS type prickle wire, astroid, jaggies and the angle steel prickle wire of described high pressure polar curve (4) and ground connection polar curve (14).
5. the bipolar corona grid of high direct voltage high-frequency impulse according to claim 1 static coalescence dust arrester is characterized in that described high-pressure stage template (5) and earthing pole template (13) are the C template or are Z-shaped plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431278.5A CN102909132B (en) | 2012-11-02 | 2012-11-02 | Direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210431278.5A CN102909132B (en) | 2012-11-02 | 2012-11-02 | Direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102909132A true CN102909132A (en) | 2013-02-06 |
| CN102909132B CN102909132B (en) | 2015-04-01 |
Family
ID=47607847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210431278.5A Expired - Fee Related CN102909132B (en) | 2012-11-02 | 2012-11-02 | Direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102909132B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069713A (en) * | 2014-07-06 | 2014-10-01 | 盐城工学院 | Coagulation-enhanced electricity-bag dust removing process |
| CN105665142A (en) * | 2016-03-23 | 2016-06-15 | 北京上派环境科技有限公司 | Flat plate type air filter with columnar dielectrophoresis electrodes |
| CN106540806A (en) * | 2016-12-30 | 2017-03-29 | 安徽工业大学 | A kind of emission-reducing system that sintering flue gas fine particulate matter is removed based on pulsed discharge |
| CN106583042A (en) * | 2016-12-30 | 2017-04-26 | 安徽工业大学 | Method for removing sintering flue gas fine particles based on pulse discharge |
| CN106765566A (en) * | 2016-12-12 | 2017-05-31 | 浙江大学 | A kind of ion it is wind-driven can synchronization process multiple pollutant air purifier |
| CN111054168A (en) * | 2019-12-13 | 2020-04-24 | 华电电力科学研究院有限公司 | Device and method for efficiently removing multi-channel fine particles |
| CN111420803A (en) * | 2020-03-09 | 2020-07-17 | 华中科技大学 | Defogging water-collecting device with positive and negative ion charge and alternating current electric field combined clash |
| CN112844846A (en) * | 2021-02-23 | 2021-05-28 | 上海丸西空环保科技有限公司 | Multi-frequency pulse discharge high-temperature flue gas dust collection device and dust collection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410849A (en) * | 1981-03-23 | 1983-10-18 | Mitsubishi Jukogyo Kabushiki Kaisha | Electric dust collecting apparatus having controlled intermittent high voltage supply |
| CA1169917A (en) * | 1981-04-09 | 1984-06-26 | Takashi Ando | Electrostatic precipitator equipped with intermittent high voltage supply |
| CN2423030Y (en) * | 2000-01-07 | 2001-03-14 | 武汉科技大学 | Electrostatic condensation electric dust separater |
| CN201154327Y (en) * | 2007-12-29 | 2008-11-26 | 武汉科技大学 | Three-zone dipolar loading electrostatic agglomeration dust remover |
| CN202860696U (en) * | 2012-11-02 | 2013-04-10 | 武汉科技大学 | Direct-current high-voltage pulse bipolar static coagulation dust collecting device |
-
2012
- 2012-11-02 CN CN201210431278.5A patent/CN102909132B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4410849A (en) * | 1981-03-23 | 1983-10-18 | Mitsubishi Jukogyo Kabushiki Kaisha | Electric dust collecting apparatus having controlled intermittent high voltage supply |
| CA1169917A (en) * | 1981-04-09 | 1984-06-26 | Takashi Ando | Electrostatic precipitator equipped with intermittent high voltage supply |
| CN2423030Y (en) * | 2000-01-07 | 2001-03-14 | 武汉科技大学 | Electrostatic condensation electric dust separater |
| CN201154327Y (en) * | 2007-12-29 | 2008-11-26 | 武汉科技大学 | Three-zone dipolar loading electrostatic agglomeration dust remover |
| CN202860696U (en) * | 2012-11-02 | 2013-04-10 | 武汉科技大学 | Direct-current high-voltage pulse bipolar static coagulation dust collecting device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104069713B (en) * | 2014-07-06 | 2016-02-03 | 盐城工学院 | A kind of electricity-bag dust collecting process strengthening coalescence |
| CN104069713A (en) * | 2014-07-06 | 2014-10-01 | 盐城工学院 | Coagulation-enhanced electricity-bag dust removing process |
| CN105665142A (en) * | 2016-03-23 | 2016-06-15 | 北京上派环境科技有限公司 | Flat plate type air filter with columnar dielectrophoresis electrodes |
| CN106765566A (en) * | 2016-12-12 | 2017-05-31 | 浙江大学 | A kind of ion it is wind-driven can synchronization process multiple pollutant air purifier |
| CN106765566B (en) * | 2016-12-12 | 2022-08-09 | 浙江大学 | Ion wind driven air purifier capable of synchronously treating various pollutants |
| CN106583042B (en) * | 2016-12-30 | 2018-08-28 | 安徽工业大学 | A method of sintering flue gas fine particle is removed based on pulsed discharge |
| CN106583042A (en) * | 2016-12-30 | 2017-04-26 | 安徽工业大学 | Method for removing sintering flue gas fine particles based on pulse discharge |
| CN106540806A (en) * | 2016-12-30 | 2017-03-29 | 安徽工业大学 | A kind of emission-reducing system that sintering flue gas fine particulate matter is removed based on pulsed discharge |
| CN111054168A (en) * | 2019-12-13 | 2020-04-24 | 华电电力科学研究院有限公司 | Device and method for efficiently removing multi-channel fine particles |
| CN111054168B (en) * | 2019-12-13 | 2023-05-02 | 华电电力科学研究院有限公司 | Device and method for efficiently removing multichannel fine particles |
| CN111420803A (en) * | 2020-03-09 | 2020-07-17 | 华中科技大学 | Defogging water-collecting device with positive and negative ion charge and alternating current electric field combined clash |
| CN111420803B (en) * | 2020-03-09 | 2021-07-02 | 华中科技大学 | Defogging water-collecting device with positive and negative ion charge and alternating current electric field combined clash |
| CN112844846A (en) * | 2021-02-23 | 2021-05-28 | 上海丸西空环保科技有限公司 | Multi-frequency pulse discharge high-temperature flue gas dust collection device and dust collection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102909132B (en) | 2015-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102909132B (en) | Direct current high voltage high frequency pulse dual-pole corona grating static coagulation dust removal device | |
| CN101869872B (en) | Bipolar charge reinforced fine particle aggregation device | |
| CN202860696U (en) | Direct-current high-voltage pulse bipolar static coagulation dust collecting device | |
| CN103084036A (en) | Electrostatic reinforcing bag type dust collector with reverse electric field | |
| CN105312155A (en) | Copper-coated dielectric barrier electrode and photocatalyst coupling electrostatic dust collection device | |
| CN104998502A (en) | Fine particle purifying equipment | |
| CN103623927A (en) | Bipolar prick electric coagulation device | |
| CN202683348U (en) | Electric dust remover | |
| CN102671763A (en) | Pipeline type high wind speed double charged area electro coagulation device | |
| CN203750368U (en) | Multi-field collaborative efficient removing device for fine particulate matters | |
| CN102553721A (en) | Static deduster and step-by-step rapping deashing method thereof | |
| CN104785060A (en) | Electrostatic agglomeration bag-type dust-removing system for efficiently treating PM2.5 dust | |
| CN205109872U (en) | Vortex street field effect collection dirt polar plate and electrostatic precipitator | |
| CN111097251B (en) | Device and method for efficiently removing fine particles in multiple-field subareas | |
| CN204563857U (en) | A kind of electrostatic coagulation bag-type dust removing system of efficient improvement PM2.5 dust | |
| CN111054168B (en) | Device and method for efficiently removing multichannel fine particles | |
| CN203140156U (en) | Reverse-electric-field electric bag dust remover | |
| CN206381788U (en) | The cigarette level particulate coalescer of room air ion auxiliary | |
| CN103817004A (en) | High gas speed and high efficiency wet-type electrofiltration device for deep treatment of PM2.5 | |
| CN106111335A (en) | Electric arc water law dust-cleaning device | |
| CN212594797U (en) | Device of high-efficient desorption of many field subregion fine particles thing | |
| CN208574453U (en) | A kind of boiler smoke multiple pollutant deep treatment device | |
| CN203874903U (en) | Wet-type electric filtration device with high gas speed and high efficiency for deeply treating PM2.5 | |
| CN2227984Y (en) | Single-stage electrostatic dust-collecting device for air purifier | |
| CN207576050U (en) | A kind of electrolemma deduster of high-accuracy high-efficiency rate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20150401 Termination date: 20181102 |