CN1047963C - Electrostatic precipitator - Google Patents
Electrostatic precipitator Download PDFInfo
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- CN1047963C CN1047963C CN95190835A CN95190835A CN1047963C CN 1047963 C CN1047963 C CN 1047963C CN 95190835 A CN95190835 A CN 95190835A CN 95190835 A CN95190835 A CN 95190835A CN 1047963 C CN1047963 C CN 1047963C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
An interior of a casing (2) of an electrostatic precipitator (1) is compartmented by square pipe steels (11) into an incoming chamber (4) and an outgoing chamber (26) which communicate with each other, and electrode pins (23) are inserted into the square pipe steels (11). Formed in the casing (2) is a guide passage (14) by which interiors of the square pipe steels (11) communicate with the incoming chamber (4). When air containing mist or the like is introduced into the square pipe steels (11) from the incoming chamber (4) with voltage applied to the square pipe steels (11) and the electrode pins (23), fine particles such as mist in the air adhere to the inside surfaces of the square pipe steels (11) so that fine particles such as mist are removed from the air. A part of the cleaned air is returned to the incoming chamber (4) through the guide passage (14) to be mixed in the incoming chamber (4) with the air which contains mist or the like. As a result, the air introduced into the square pipe steels (11) is made low in content of mist or the like.
Description
Technical field
The present invention relates to electrostatic filter.Particularly relate to a kind of electrostatic filter, be used for being collected in the materials such as mist of oil that produce when cutting operation such as various lathes such as lathe and cylindrical grinders sprays cooling agent.
Background technology
The shell that is used to collect the electrostatic filter of material such as mist of oil has a upper inlet usually, is used for air is imported in the shell, and an outlet down, be used for air is discharged outside the shell.Entrance and exit communicates with each other by vertically extending cylindrical shape collecting electrode in shell.Be imported into air in the shell collecting electrode of flowing through by inlet, and in shell, emit by outlet.Be provided with a sparking electrode in each collecting electrode inside.If between collecting electrode and sparking electrode, apply voltage, will between the two, form DC electric field.Because the effect of DC electric field, in the air of the collecting electrode of flowing through the particulate of contained mist of oil one class be attracted and the inwall attached to collecting electrode on.So just removed airborne particulate, made and from the air that outlet is discharged, contain less particulate.
When mist of oil attached to the mist of oil on the collecting electrode inwall cohesion takes place, will form drop.Drop and spills by the bottom of collecting electrode opening because the gravity of self flows downward along the inwall of each collecting electrode.The electrostatic filter of this structure can be installed on the stock-removing machine, is used to collect the mist of oil that lathe produces.
Yet if airborne oil moisture content is very high, when air was flowed through collecting electrode, common electrostatic filter was not enough to collect mist of oil.Therefore, when air is discharged from exporting, wherein still contain a large amount of mist of oils.
If common electrostatic filter is installed on the stock-removing machine,, may need it is flatly installed according to the layout of stock-removing machine.In this case, collecting electrode is horizontally extending, therefore, and may be from wherein spilling attached to the drop on the collecting electrode inwall, and can be accumulated in collecting electrode inside.
Therefore, main purpose of the present invention provides a kind of electrostatic filter, even when the fraction of particle in gas is very high, it also can eliminate particulate reliably from air.
Another object of the present invention provides a kind of electrostatic filter, even when collecting electrode is arranged by the horizontal-extending mode, also can discharge reliably attached to the particulate on the collecting electrode inwall from collecting electrode inside.
Summary of the invention
In electrostatic filter of the present invention, there are a plurality of cylindrical shape collecting electrodes and an inlet plenum to link, inlet plenum is used to receive the gas of the particulate that contains the needs removing.There is one to be used to be communicated with its inside and outside connected component on the wall of each collecting electrode.This connected component is communicated with a guide channel, so that gas is imported inlet plenum from collecting electrode inside.When gas is imported into collecting electrode by inlet plenum, between collecting electrode and sparking electrode, apply a voltage, produce DC electric field.Electric field make by the particulate in the gas of collecting electrode be attracted and inwall attached to collecting electrode on.That part of gas that has been removed particulate in collecting electrode inside is introduced into inlet plenum by connected component and guide channel.In inlet plenum,, thereby just reduced the fraction of particle that is introduced in the collecting electrode gas inside from guide channel gas that attracts and the mixed gases of outside shell, introducing recently.Even so just might from gas, remove this particulate reliably under the situation that fraction of particle increases in being introduced into the gas of inlet plenum.
Brief description of drawings
Fig. 1 is the vertical cross-section diagram according to the electrostatic filter of first embodiment of the invention;
Fig. 2 is the sectional drawing of the rectangular tube that uses among first embodiment;
Fig. 3 is the sectional drawing of a kind of remodeling of the rectangular tube among first embodiment;
Fig. 4 is the vertical cross-section diagram according to the electrostatic filter of second embodiment of the invention;
Fig. 5 is the sectional drawing of the rectangular tube that uses among second embodiment;
Fig. 6 is the perspective view of rectangular tube shown in Figure 5; And
Fig. 7 is the vertical cross-section diagram of a kind of remodeling of the rectangular tube among second embodiment.
Explanation first embodiment of preferred embodiment
Followingly the first embodiment of the present invention is described with reference to Fig. 1 and 2.
As shown in Figure 1, electrostatic filter 1 comprises the lower horizontal ground expansion of 2, one flat boards 3 of rectangular enclosure at shell 2 inwalls.Shell 2 has inlet plenums 4 that are located at below dull and stereotyped 3, is used for receiver gases, for example contains the air of material such as mist of oil.Be provided with inlet 5 as the conduit that the air that allows to have material such as mist of oil enters on the bottom surface of inlet plenum 4, also be provided with exhaust outlet 6, it is reserved as the conduit of the materials such as mist of oil that discharging collected by electrostatic filter 1.Lower end at inlet 5 is provided with a flange 7, so that electrostatic filter 1 is installed on the various lathes, for example is contained on the stock-removing machine that produces materials such as mist of oil.
The tubular dust arrester 9 of filter 8 is connected to the inlet 5 of inlet plenum 4 inboards.Tubular dust arrester 9 is to be made of a plurality of coaxial arrangement and the empty tube that is offset 90 degree venting each other.If drive a unshowned fan in the various lathes, make the air that has materials such as mist of oil from the 5 inflow inlet plenums 4 that enter the mouth, air just flows to its outside from the inboard of tubular dust arrester 9.As a result, tubular dust arrester 9 will be removed relatively large dust of diameter or mist of oil particulate from air.
Dull and stereotyped 3 have a central opening 10.Vertically extend the top that has a plurality of rectangular tubes 11 as collecting electrode to be arranged in opening 10, and these pipes are made by aluminium or other conductive materials.As illustrated in fig. 1 and 2, the cross section of each rectangular tube 11 all is foursquare.Rectangular tube 11 (nine pipes are arranged in this example) is arranged to the array of three vertical row and three horizontal line, forms a latticed pipe fitting with square sectional, and is welded to one another together.In the bottom of pipe fitting, be welded with a plate 12 along the periphery of pipe fitting.The inside of each rectangular tube 11 is communicated with opening 10, by a unshowned insulation or separator plate 12 is fixed on the top of flat board 3.Rectangular tube 11 also is connected to power supply 17, and is charged to negative potential (-).
Packing ring 13 extends to the pipe fitting that is arranged in shell 2 centers from the inwall of shell 2.The interior edge of packing ring 13 is fixed on the outer surface on pipe fitting top, and pipe fitting is made of pipe 11 by a unshowned insulation or separator.Below packing ring 13, at shell 2 with manage between 11 pipe fittings that constitute and define a guide channel 14.Guide channel 14 is via being communicated with inlet plenum 4 by plate 12 and the dull and stereotyped 3 a plurality of targeting ports 15 that extend.Each targeting port 15 is made of a guide.As illustrated in fig. 1 and 2, also have four vertical joint-cuttings 16 to be set at, be used to make the inside of rectangular tube 11 to be communicated with guide channel 14 by four jiaos that manage 11 pipe fittings that constitute.
A carriage 20 is connected the top of rectangular tube 11.Thereby flat positive plate 21 is fixed on the top of carriage 20 and is connected to power supply 17 by positive charge.Comprise on the whole surface of positive plate 21 of end face and bottom surface having covered a separation layer 22 of making by nylon resin or other suitable materials, make rectangular tube 11 and positive plate 21 each other forward isolate.Electrode stem 23 as sparking electrode is connected to positive plate 21.Each electrode stem 23 extends in each rectangular tube 11 internal vertical, and as the sparking electrode that is surrounded by the inwall of rectangular tube 11.Electrode stem 23 and positive plate 21 are the same to be positive charge.Positive plate 21 has a plurality of through holes 24.
If between electrode stem 23 and rectangular tube 11, apply about 10,000 volts voltage, form very strong DC electric field between the inwall of the rectangular tube 11 that will charge at the electrode stem 23 and the negative sense of positive charge with power supply 17.This DC electric field produces a kind of from the cation rain of electrode stem 23 to rectangular tube 11 discharges.Like this, when the air that has materials such as mist of oil was imported into rectangular tube 11, mist of oil descended by positive charge in the influence of cation rain.Mist of oil is attracted and is shifted to the inwall of rectangular tube 11 under the effect of the Coulomb power that DC electric field produces.When mist of oil attached to the inwall of rectangular tube 11 on the time, just become electroneutral, and become drop.Drop flows downward and is collected along the inwall of rectangular tube 11.
On packing ring 13, shell 2 has a unshowned open end.The open end is covered by a lid 25, thereby defines a discharge chamber 26 that is in above packing ring 13 and the rectangular tube 11 in shell 2.Discharge chamber 26 is used to discharge the air of having removed materials such as mist of oil.Gas outlet 27 is arranged on the top of discharge chamber 26 outer surfaces, so that discharge by the air after electrostatic filter 1 cleaning.Packing ring 13 has gas vent 13a and is used to make guide channel 14 to be communicated with discharge chamber 26.The total aperture area of gas vent 13a that leads to discharge chamber 26 is less than the aperture area of the guide channel 15 that leads to inlet plenum 4.
The operating process of the electrostatic filter 1 of this structure below will be described.
The air that has materials such as mist of oil is imported into inlet plenum 4 by the air inlet 5 and first filter 8.Then, air flows into rectangular tube 11 by opening 10.Will electrode stem 23 and rectangular tube 11 between form DC electric field if apply voltage between electrode stem 23 and rectangular tube 11 this moment.Such as the such particulate of materials such as mist of oil be attracted under the effect of DC electric field and attached to rectangular tube 11 on.The air that is cleaned in rectangular tube 11 is imported into discharge chamber 26 then.Air in the discharge chamber 26 is discharged from electrostatic filter 1 by gas outlet 27.
The portion of air that has been removed materials such as most of mist of oil in four rectangular tubes 11 on the pipe fitting angle flows into guide channel 14 by joint-cutting 16.Air in the guide channel 14 round pipe fitting lentamente spiral descend, and be imported into inlet plenum 4 by targeting port 15.The portion of air that is imported into guide channel 14 after having removed most of mist of oil can also flow into discharge chamber 26 by gas vent 13a.
In inlet plenum 4, the very low air of oil moisture content that imports from guide channel 14 mixes mutually with the air that is imported into by air inlet 5 recently, so that reduce airborne oil moisture content.The air that hangs down content of material such as mist of oil that has after overregulating is imported into rectangular tube 11 subsequently.Like this, even the content by materials such as mist of oils in the air of air inlet 5 importings is very high recently, the content of material such as airborne mist of oil that are imported into rectangular tube 11 are still relatively low.This adjusting to oil moisture content in the air can make electrostatic filter 1 can remove mist of oil effectively.
When cohesion takes place the particulate such as materials such as mist of oils, can on the inwall of rectangular tube 11, form drop.Drop is because the gravity of self flows downward along the inwall of each rectangular tube 11, and drop flows into inlet plenum 4 by the bottom of the opening of each rectangular tube 11.The drop that splashes into inlet plenum 4 from rectangular tube 11 spills from the outlet 6 that is connected on inlet plenum 4 bottom surfaces subsequently.
In this example, in rectangular tube 11, removed the portion of air of materials such as mist of oil and can return in the inlet plenum 4, and mixed mutually with the air that imports by air inlet 5 recently thereupon by guide channel 14.Therefore, even it is very high to be imported into the content of material such as airborne mist of oil of inlet plenum 4 recently by air inlet 5,, still can remove materials such as mist of oil effectively because it is lower to be imported into the content of material such as airborne mist of oil of rectangular tube 11.
In this example, also be provided with the gas vent 13a that is communicated with guide channel 14 and discharge chamber 26.The total aperture area of gas vent 13a that leads to discharge chamber 26 is less than the aperture area of the targeting port 15 that leads to inlet plenum 4.Therefore, be not imported into inlet plenum 4 and the air stayed in the guide channel 14 can enter discharge chamber 26, thereby prevent that air is left in the guide channel 14.Second embodiment
Below in conjunction with accompanying drawing 4 to the 6 explanation second embodiment of the present invention.
As shown in Figure 4, the shell 32 of electrostatic filter 31 is rectangles.The inside of shell 32 is separated into upper channel 34 and lower channel 35 by a central partition plate 33 by the vertical centre horizontal extension of shell.Upper channel 34 is communicated with lower channel 35 by the space that right side in shell 32 limits.
In lower channel 35, be provided with one vertically extending dull and stereotyped 36.Inlet plenum 37 is limited at dull and stereotyped 36 left side.Air inlet 38 is arranged on the left wall of inlet plenum 37, so that make the air that has materials such as mist of oil flow into inlet plenum 37.In inlet plenum 37 inboards, first filter 39 is housed on air inlet 38.First filter 39 is removed diameter relatively large grey point and mist of oil from the air that imports inlet plenum 37.
Dull and stereotyped 36 have an opening 40.The same with first embodiment, a plurality of rectangular tubes 41 that extend as collecting electrode and in lower channel 35 are fixed on by a plate 42 on dull and stereotyped 36 the right surface.As shown in Figs. 4-6,16 rectangular tubes 41 are arranged and are welded to one another into the array of four vertical row and four horizontal line, thereby constitute the pipe fitting with square sectional.In addition, the same with first embodiment as shown in Figure 4, be fixed on the packing ring 43 that extends from the inwall of lower channel 35 along its outer surface by the right-hand member of pipe 41 pipe fittings that constitute.Guide channel 44 is limited between packing ring 43 and dull and stereotyped 36 in the horizontal direction, is limited at lower channel 35 and manages between 41 pipe fittings that constitute in vertical direction, and a targeting port 45 extends by plate 42 and dull and stereotyped 36, and inlet plenum 37 is communicated with guide channel 44.Guide channel 44 also is communicated to a floss hole 44a, and the materials of being collected by electrostatic filter 31 such as mist of oil spill by floss hole 44a.In addition, packing ring 43 also has a gas vent 43a.The 43a feasible air of staying in the guide channel 44 in hole can enter the rightward space in the shell 32.The aperture area of venting 43a is less than the aperture area of guiding 45.
As shown in Figure 5, joint-cutting 46 extends along the whole length of pipe 41 by each the adjacent roof and the diapire of the adjacent rectangular tube 41 of vertical direction, and adjacent pipe 41 is communicated with each other in vertical direction.In addition, has a joint-cutting 46a with joint-cutting 46 the same formations on the diapire of the pipe 41 in the next line of pipe fitting.Joint-cutting 46a is communicated with guide channel 44.Between vertical adjacent rectangular tube 41, provide the joint-cutting 46 of connection alternately to be arranged on the right corner or the left comer place of the rectangular tube 41 in the tubulation 41.Each diapire of rectangular tube 41 is towards joint-cutting 46 or the downward-sloping extension of 46a.
As shown in Figure 4, positive plate 48 is fixed on the right-hand member of rectangular tube 41 by a support 47.Electrode stem 49 as sparking electrode is connected to positive plate 48, and flatly extends in each rectangular tube 41.Positive plate 48 also has a plurality of through hole 48a, and as shown in Figure 5, rectangular tube 41 and electrode stem 49 are connected to a power supply 50.If apply voltage between rectangular tube 41 and electrode stem 49, rectangular tube 41 will be charged to negative potential, and electrode stem 49 is charged to positive potential.
Within upper channel 34, also be provided with rectangular tube 41, positive plate 48, electrode stem 49 and guide channel 44.The used label of these elements and the element in being located at lower channel 35 is identical, because they are identical with component structure and arrangement in the lower channel 35, in this no longer repeat specification.
In shell 2, on the part of dividing plate 33, be provided with a plurality of through holes 55 facing to the guide channel 44 of upper channel 34 and the guide channel 44 of lower channel 35, be used to make these guide channels 44 to communicate with each other.In addition, the packing ring 43 of upper channel 34 is provided with gas vent 43a, and wherein the aperture area of gas vent 43a is less than the aperture area of targeting port 45.Second filter 56 is arranged on the left side of upper channel 34 inner anode plates 48, so that remove smell from the air by lower channel 35 and upper channel 34.
The operation principle of the electrostatic filter 31 of this structure below will be described.
If drive fan 60 is rotated screw 61, the air that has material such as mist of oil will be inhaled into inlet plenum 37 by air inlet 38.The air that is inhaled into inlet plenum 37 flows into discharge chamber 57 by the rectangular tube 41 of lower channel 35 and the rectangular tube 41 of upper channel 34.When the air that has material such as mist of oil during, between electrode stem 49 and rectangular tube 41, apply voltage, thereby between electrode stem 49 and rectangular tube 41, form DC electric field by rectangular tube 41.Be attracted such as the particulate of materials such as mist of oil in the air and the inwall attached to rectangular tube 41 on.As a result, the air of cleaning is inhaled into discharge chamber 57 and is discharged into outside the electrostatic filter 31 via gas outlet 58.
The portion of air that has been removed materials such as mist of oil in each rectangular tube 41 of upper channel 34 is by joint-cutting 46 and 46a, and the guide channel 44 and the targeting port 45 of the guide channel 44 of upper channel 34, through hole 55, lower channel 35 are imported into inlet plenum 37.In addition, not that directly the air in the guide channel 44 of the upper channel 34 of inlet plenum 37 can enter discharge chamber 57 by the gas vent 43a of upper channel 34.Moreover, the portion of air that has been removed materials such as mist of oil in the rectangular tube 41 of lower channel 35 is by joint-cutting 46 and 46a, and the guide channel 44 and the targeting port 45 of lower channel 35 are imported into inlet plenum 37.The air that is not imported into inlet plenum 37 in the guide channel 44 of lower channel 35 can enter the rightward space of shell 2 by gas vent 43a.
In inlet plenum 37, the air that has been removed materials such as mist of oil mixes mutually with the air that imports by air inlet 38.The result has just reduced the content of the materials such as mist of oil in inlet plenum 37 inner airs, thereby the lower air of content of material such as mist of oil is offered the rectangular tube 41 of lower channel 35 and upper channel 34 in first embodiment.
In addition, because joint-cutting 46 and 46a are arranged on the angle of each rectangular tube 41, the cross (talk) between the DC electric field has been reduced, thereby has prevented dust collecting performance decline.In addition, by joint-cutting 46 and 46a alternately being arranged on the right corner or the left comer of each rectangular tube 41, the quantity of the DC electric field of leaking from joint-cutting 46 and 46a has also reduced.
Become drop attached to the particle coagulation on rectangular tube 41 inwalls such as materials such as mist of oils.Drop flows downward owing to himself gravity and is collected on the inwall of each rectangular tube 41.The bottom interior wall of each rectangular tube 41 makes the drop that arrives rectangular tube 41 bottom interior wall places flow to joint-cutting 46 or 46a along the diapire that tilts towards joint-cutting 46 or the downward-sloping extension of 46a.Like this, the drop in each rectangular tube 41 flows into another rectangular tube 41 that is right after thereunder successively by joint-cutting 46.Then.The joint-cutting 46a of the rectangular tube 41 of the next line of drop by being located at pipe fitting is collected in the guide channel 44 effectively.
As mentioned above, according to present embodiment, the joint-cutting 46 of rectangular tube 41 and the effect of 46a are that a part of clean air of guiding enters guide channel 44 and the drop in the rectangular tube 41 is spilt.Therefore, although rectangular tube 41 is arranged to horizontally extending mode, can prevent that still drop is trapped in the rectangular tube 41.If the drop of this delay has covered the inwall of rectangular tube 41, the electric precipitation performance will deterioration.According to the present invention, can prevent because the electric precipitation performance degradation problem that causes of the accumulation of drop in rectangular tube 41, thereby improve the electric precipitation performance of electrostatic filter.In addition, can leak the drop in the rectangular tube 41 effectively,, need in rectangular tube 41, discharge orifice be set on same direction because joint-cutting 46 and 46a and rectangular tube 41 extend.Have, because the bottom interior wall of pipe 41 is downward-sloping towards joint-cutting 46 and 46a, drop can spill from rectangular tube 41 effectively again.
Moreover, according to present embodiment, joint-cutting 46 is one and exceeds a ground and be located at overlappingly on the angle of rectangular tube 41.Therefore just can reduce the cross (talk) of the DC electric field between the rectangular tube 41, and prevent the deterioration of dust collecting performance.In addition, owing to alternately extend on the left comer of the rectangular tube 41 of joint-cutting 46 in a tubulation 41 or the right corner, just may reduce DC electric field and pass through joint-cutting 46 and from rectangular tube 41, leak, thereby more effectively prevent the deterioration of dust collecting performance.
In addition, the same with first embodiment, a part of clean air in the rectangular tube 41 returns inlet plenum 37 by guide channel 44.Like this, contain a large amount of materials such as mist of oil, still might remove materials such as airborne most mist of oils even be imported into by air inlet 38 in the air of inlet plenum 37.Also have,, can prevent that air from staying in the guide channel 44 because the air of staying in the guide channel 44 can flow into the rightward space and the discharge chamber 57 of shell 2 respectively by lower channel 35 and upper channel 34 gas vent 43a separately.
The present invention is not limited only to the foregoing description, also can make following modification.
As shown in Figure 3, in first embodiment, in the rectangular tube 11 at each angle of pipe fitting, be provided with joint-cutting 16, also can in the rectangular tube in the outside, extra joint-cutting 16 be set at other.In this case, except that rectangular tube 11 that is positioned at the center, other eight rectangular tubes 11 all can be communicated with guide channel 14.Therefore, the clean air in rectangular tube 11 can return inlet plenum 4 effectively.
As shown in Figure 3, the joint-cutting 16 that dots also can be separately positioned at the rectangular tube 11 at center and in connection with between four rectangular tubes 11 at the rectangular tube 11 at center.In this case, the air that is cleaned in rectangular tube 11 inside can be sent back to inlet plenum 4 effectively.Therefore, the air quantity that flows into inlet plenums 4 from guide channel 14 has just increased, so that further reduce the content of material such as mist of oil in the air, thereby removes material such as mist of oil more effectively from air.
The joint-cutting that is located among first embodiment in each rectangular tube 11 is made into a plurality of through holes, a plurality of through holes that are communicated with guide channel 14 can be set along the length of rectangular tube 11.
Can be modified as horizontally extending form to bottom interior wall in a second embodiment.
The joint-cutting 46 and the 46a that are located among second embodiment in each rectangular tube 41 are made into a plurality of through holes that are provided with along rectangular tube 41 length.
As shown in Figure 7, rectangular tube described in second embodiment 41 and electrode stem 49 can extend downwards obliquely towards the downstream direction of air-flow.Delivery pipe 66 can be located at shell 32 bottoms, is arranged in packing ring 43 right sides of lower channel 35.The dividing plate 33 that escaper 67 can pass through packing ring 43 left sides of upper channel 34 extends, and is communicated with the guide channel 44 of lower channel 35.In this arrangement, the drop in each rectangular tube 41 flows towards joint-cutting 46, and flows along the length of rectangular tube 41.As a result, each drop just has been extended along the mobile distance of rectangular tube 41 inwalls.Can promote the cohesion of drop like this and accelerate each drop, drop is leaked into outside the rectangular tube 41 effectively along the mobile speed of the inwall of each rectangular tube 41.Drop flows out from the openend of each rectangular tube 41 of the lower channel 35 of close anode 48, rather than flows out from joint-cutting 46 and 46a, and drop can drain to the outside from delivery pipe 44a by the guide channel 44 of floss hole 67 and lower channel 35.
In the above-described embodiments, rectangular tube 41 and 11 quantity can suitably change.
In addition, in the above-described embodiments, even rectangular tube 11 and 41 is used as collecting electrode, pipe 11 and 41 also can be with other polygon-shaped formations, for example triangle or hexagon.In addition, can change pipe 11 and 41 into cylindrical shape from rectangle.
In the above-described embodiments, rectangular tube 11 and 41 is exceeded the pipe fitting that a ground is arranged in grid type by one.Otherwise also can provide a kind of grid type rectangular tube of monomer.
Also have, pipe 11 and 41 can be charged to positive potential (+), and electrode stem 23 and 49 is charged to negative potential (-).This mode can provide effect same as the previously described embodiments.
Claims (8)
1. an electrostatic filter comprises inlet plenum (4,37), be used to receive the gas of the particulate that contains the needs cleaning, at least one sparking electrode (23,49) and at least one surround above-mentioned sparking electrode (23,49) and at itself and above-mentioned sparking electrode (23,49) define one and above-mentioned inlet plenum (4 between, 37) collecting electrode (11 in the space of Lian Tonging, 41), wherein at above-mentioned collecting electrode (11,41) and above-mentioned sparking electrode (23,49) apply voltage between, between the two, form a DC electric field, thus with static passing through above-mentioned particulate collecting in the gas of above-mentioned collecting electrode (11,41) at above-mentioned collecting electrode (11,41) on, it is characterized in that:
Wall at above-mentioned collecting electrode (11,41) is provided with connected component (16; 46,46a), so that be communicated with the inside and outside of above-mentioned collecting electrode (11,41); And
With above-mentioned connected component (16; 46, the 46a) guide channel 44 of Lian Tonging, thus allow to return above-mentioned inlet plenum (4,37) by a part of gas of above-mentioned collecting electrode (11,41).
2. electrostatic filter as claimed in claim 1 is characterized in that:
Above-mentioned collecting electrode (41) and above-mentioned sparking electrode (49) arrange according to horizontally extending mode, and above-mentioned connected component (46,46a) be arranged on the diapire of above-mentioned collecting electrode (41).
3. electrostatic filter as claimed in claim 1 is characterized in that also comprising:
Discharge chamber (26,57) with above-mentioned collecting electrode (11,41) is communicated with is used for emission gases, a targeting port (15,45) that makes above-mentioned inlet plenum (4,37) be communicated with above-mentioned guide channel (14,44), and
(13a, 43a), (13a, aperture area 43a) is less than the aperture area of above-mentioned targeting port (15,45) for wherein above-mentioned gas vent to connect above-mentioned discharge chamber (26,57) and the above-mentioned gas vent that leads to passage (14,44).
4. electrostatic filter as claimed in claim 1 is characterized in that:
A plurality of above-mentioned collecting electrodes (11,41) be arranged to an assembly adjacent to each other, the above-mentioned connected component (16 of the above-mentioned guide channel of connection wherein (14,44), 46a) be arranged on the wall that is arranged in the outermost above-mentioned collecting electrode of said modules (11,41).
5. electrostatic filter as claimed in claim 4 is characterized in that:
Above-mentioned connected component (16,46) is connected to each other the above-mentioned collecting electrode (11,41) of the component internal that is positioned at collecting electrode (11,41) and another collecting electrode (11,41) that is positioned at this assembly outside.
6. electrostatic filter as claimed in claim 2 is characterized in that:
Above-mentioned collecting electrode (41) is made of a rectangular tube, and
The diapire of above-mentioned collecting electrode (41) be towards above-mentioned connected component (46,46a) downward-sloping.
7. electrostatic filter as claimed in claim 6 is characterized in that:
A plurality of above-mentioned collecting electrodes (41) are exceeded a ground by one and are provided with, wherein above-mentioned connected component (46,46a) adjacent two roofs and the diapire by collecting electrode (41) extends respectively, and extends by the diapire that is arranged in the collecting electrode (41) in the minimum delegation collecting electrode (41).
8. electrostatic filter as claimed in claim 7 is characterized in that:
Above-mentioned connected component (46,46a) alternately be arranged in the above-mentioned adjacent roof of collecting electrode (41) and a jiao of diapire, and collecting electrode (41) in vertical direction one exceed and one ground be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95190835A CN1047963C (en) | 1994-08-30 | 1995-05-08 | Electrostatic precipitator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| WOPCT/JP94/01428 | 1994-08-30 | ||
| PCT/JP1994/001428 WO1996006682A1 (en) | 1994-08-30 | 1994-08-30 | Electrostatic dust collector |
| CN95190835A CN1047963C (en) | 1994-08-30 | 1995-05-08 | Electrostatic precipitator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1134675A CN1134675A (en) | 1996-10-30 |
| CN1047963C true CN1047963C (en) | 2000-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95190835A Expired - Lifetime CN1047963C (en) | 1994-08-30 | 1995-05-08 | Electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047963C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202511399U (en) * | 2012-03-19 | 2012-10-31 | 上海苍穹环保技术有限公司 | High-pressure high-frequency dust-removing sterilization device |
| CN103691240A (en) * | 2013-12-17 | 2014-04-02 | 天津大学 | High-dust holding capacity and high-efficiency composite electrostatic air purification device |
| KR101489190B1 (en) * | 2014-10-20 | 2015-02-09 | 주식회사 지이테크 | The oil mist, organic solvent recovering device Included in industrial exhaust gases and method of recovering oil mist, organic solvent using the same |
| CN105855052A (en) * | 2015-08-07 | 2016-08-17 | 上海华族实业有限公司 | Air purifier PM2.5 collecting device |
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1995
- 1995-05-08 CN CN95190835A patent/CN1047963C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1134675A (en) | 1996-10-30 |
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Expiration termination date: 20150508 Granted publication date: 20000105 |