CN108025317A - Electric precipitation machine and waste gas cleaning system - Google Patents
Electric precipitation machine and waste gas cleaning system Download PDFInfo
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- CN108025317A CN108025317A CN201580082907.XA CN201580082907A CN108025317A CN 108025317 A CN108025317 A CN 108025317A CN 201580082907 A CN201580082907 A CN 201580082907A CN 108025317 A CN108025317 A CN 108025317A
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- electrode plate
- electrode
- electric precipitation
- precipitation machine
- sparking electrode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
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- Electrostatic Separation (AREA)
- Treating Waste Gases (AREA)
Abstract
If sparking electrode has the protrusion of spine shape, corona discharge can be produced between the protrusion and opposite electrode of the spine shape of sparking electrode.Therefore, if electric precipitation machine is run in a long time, in the erosion with opposite electrode may occur on the specified point of the corresponding opposite electrode of the protrusion of spine shape.The present invention provides a kind of electric precipitation machine, including：First electrode plate；And be oppositely arranged with first electrode plate and end be located at first electrode plate tip inside second electrode plate, the end of second electrode plate does not have protrusion.
Description
Technical field
The present invention relates to electric precipitation machine and waste gas cleaning system.
Electric precipitation machine is used to collect the particulate in exhaust gas in various workshops and in flue etc. in various regions.In the past,
In the flat sparking electrode electric precipitation machine opposite with flat opposite electrode is made, sparking electrode as serrated knife
End has the protrusion of spine shape (referring for example to patent document 1).Sparking electrode spine shape protrusion with
Corona discharge is produced between opposite electrode, makes charge particles using corona discharge.Dedusting is collected powered with electrode using Coulomb force
Particulate (referring for example to patent document 1).
Prior art literature
Patent document
Patent document 1：No. 2971461 specifications of Japanese Patent No.
The content of the invention
The technical problems to be solved by the invention
Corona discharge is produced between the protrusion and opposite electrode of the spine shape of sparking electrode.Therefore, if in length
Operation electric precipitation machine in time, then may be with sending out on the specified point of the corresponding opposite electrode of the protrusion of spine shape
The erosion of raw opposite electrode.
Technical scheme applied to solve the technical problem
(general disclosure of the invention) electric precipitation machine can include first electrode plate and second electrode plate.Second electrode
Plate can be oppositely arranged with first electrode plate.The end of second electrode plate can be located at the inner side of the end of first electrode plate.The
The end of two electrode plates can not have protrusion.
Second electrode plate can be flat writing board shape.Second electrode plate can have in all areas is equal to first
Electrode plate and the radius of curvature of more than half in the gap of second electrode plate.
Second electrode plate can be the flat writing board shape in the corner comprising line part and with radius of curvature.
Second electrode plate can be circular plate shape.
Second electrode plate can have the pass through openings portion of more than 1.
The pass through openings portion of more than 1 can include multiple independent pass through openings portions.
The pass through openings portion of more than 1 can have central portion and peripheral openings portion.Central portion can be most
Greatly.The aperture area in peripheral openings portion can be smaller than central portion.Peripheral openings portion can be only fitted to the week of central portion
Enclose.
Second electrode plate can have the pass through openings portion of more than 1.At least one in the pass through openings portion of more than 1
There can be the edge part prominent to first electrode plate.
Pass through openings portion with the edge part prominent to first electrode plate can be with multiple.The prominent length of edge part
Can be different with downstream in the upstream side for importeding into the gas of electric precipitation machine.
The prominent length of edge part can make long in downstream in upstream side ratio.
First module with first electrode plate and second electrode plate can be laminated with multiple.
It can make to be laminated with multiple on the end of the stacked direction of first module, first electrode plates and second electrode
Gap length between plate be more than be laminated with multiple on the central part of the stacked direction of first module, first electrode plates with
Gap length between second electrode plate.
Electric precipitation machine can further include second unit.Second unit can have the 3rd electrode plate and the 4th electrode plate.The
Four electrode plates can be oppositely arranged with the 3rd electrode plate.The end of 4th electrode plate can be located at the interior of the end of the 3rd electrode plate
Side.The end of 4th electrode plate can have protrusion.The stacked direction of multiple first modules can be laminated with extremely
Few both ends are equipped with second unit.
Waste gas cleaning system can include washer and the electric precipitation machine being described above.Washer can carry out exhaust gas
Purification.Electric precipitation machine can be arranged on the upstream of washer.
In addition, the summary of foregoing invention does not include all required features of the present invention.Also, the change of these feature groups
Shape can also become invention.
Brief description of the drawings
Fig. 1 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 1.
Fig. 2 is the sectional view of the structure for the electric precipitation machine 200 for representing embodiment 1.
Fig. 3 is the figure that the A-A ' sections in top view 2 obtain.
Fig. 4 is the figure of the shape for the sparking electrode 100 for representing embodiment 2.
Fig. 5 is the figure of the shape for the sparking electrode 100 for representing embodiment 3.
Fig. 6 is the figure of the shape for the sparking electrode 100 for representing embodiment 4.
Fig. 7 is the figure of the shape for the sparking electrode 100 for representing embodiment 5.
Fig. 8 is the figure of the shape for the sparking electrode 100 for representing embodiment 6.
Fig. 9 is the figure of the shape for the sparking electrode 100 for representing embodiment 7.
Figure 10 is the figure of the shape for the sparking electrode 100 for representing embodiment 8.
Figure 11 is to observe the sectional view that the sparking electrode 100 of embodiment 8 obtains from the side.
Figure 12 is the figure of the shape for the sparking electrode 100 for representing embodiment 9.
Figure 13 is to observe the sectional view that the sparking electrode 100 of embodiment 9 obtains from the side.
Figure 14 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 10.
Figure 15 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 11.
Figure 16 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 12.
Figure 17 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 13.
Figure 18 is the figure for the summary for representing waste gas cleaning system 400.
Embodiment
In the following, illustrating the present invention by the embodiment of invention, following embodiment is not to claims
Invention involved by scope is defined.Also, all combinations of the feature illustrated in embodiment are for the solution of invention
Means are not necessarily necessary.
In this specification, illustrate technology contents using the rectangular axes of X-axis, Y-axis and Z axis.Rectangular axes are only
Only determine the relative position of inscape, do not limit specific direction.For example, Z axis and non-limiting being expressed as relative to ground
Short transverse.In addition ,+Z-direction and-Z-direction are directions opposite each other.Z-direction is recorded not recording positive and negative
In the case of, refer to the direction parallel with+Z axis and-Z axis.In addition, in this specification, " straight line " has infinitely great curvature half
Footpath.
Fig. 1 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 1.Electric precipitation machine 200 is collected in exhaust gas
Particulate.Particulate is cigarette and dust etc..Electric precipitation machine 200 has opposite electrode 10-1 and sparking electrode 100.As first electrode
The opposite electrode 10-1 of plate is the electrode plate of GND current potentials, also referred to as GND electrodes.Sparking electrode 100 as second electrode plate is
The electrode plate of high potential.Sparking electrode 100 is oppositely arranged with opposite electrode 10-1.
The electric precipitation machine 200 of the present embodiment is in addition to opposite electrode 10-1 and sparking electrode 100, also with opposed electricity
Pole 10-2.Opposite electrode 10-1 and opposite electrode 10-2 is configured to clip sparking electrode 100.Thus, can be in an electric discharge electricity
Corona discharge 2 is produced on the end 102 on the two sides of pole 100.However, it is also possible to it is different from the present embodiment, only by opposite electrode 10-
1 and sparking electrode 100 form electric precipitation machine 200.
Opposite electrode 10-1, sparking electrode 100 and opposite electrode 10-2 can be laminated in z-direction so that from electric discharge
Gap length on electrode 100 to the Z-direction of opposite electrode 10-1 with from sparking electrode 100 to the Z-direction of opposite electrode 10-2
On gap length it is equal.Can be by opposite electrode 10-1, opposite electrode 10-2 and sparking electrode 100 is configured to and X/Y plane
It is parallel.
Opposite electrode 10-1 and opposite electrode 10-2 (hereinafter sometimes referred to opposite electrode 10) have with sparking electrode 100
Flat writing board shape.The thickness of opposite electrode 10 and sparking electrode 100 can be in more than 1mm below 2mm.Opposite electrode 10
And the plate suqare of sparking electrode 100 can be in 0.3m2Above 3m2Below.For example, opposite electrode 10 and sparking electrode 100 are
The tablet of 1m × 1m or so.Here, the area of sparking electrode 100 is smaller than the area of opposite electrode 10.Opposite electrode 10 and put
The material of electrode 100 can be the stainless steels such as the substandard SUS304 of JIS.
The opposite electrode 10 of the present embodiment is rectangular.The opposite electrode 10 of the present embodiment has end 12.End 12 includes
The four edges 14 of rectangle.Here, " end " refers to the end on the direction parallel with X/Y plane.However, it is also possible to this implementation
Example is different, and opposite electrode 10 has the arbitrary shapes such as polygon, circle and ellipse.The sparking electrode 100 of the present embodiment has
It can be approximately rectangular shape to have.Sparking electrode 100 has end 102.The end 102 of sparking electrode 100 is located at opposite electrode
The inner side of 10 end 12.As shown in Figure 1, the end 102 of sparking electrode 100 does not include the protrusions such as spine shape.
Negative high voltage is applied with by DC power supply 20 on the sparking electrode 100 of the present embodiment.Opposite electrode 10 is grounded.
Thus, formed with high electric field region between sparking electrode 100 and opposite electrode 10.
It is different from the present embodiment and in the case of there is the protrusion such as spine shape on sparking electrode 100, corona
The generation position of electric discharge 2 is easily fixed in the underface of protrusion or the position of surface.If operation electricity in a long time
Dust removal machine 200, then in the underface of protrusion of sparking electrode 100 or the easy office of the particulate such as the position of surface, dust
Portion it is piled up in opposite electrode 10.The accumulation of particulate can shorten the gap length between sparking electrode 100 and opposite electrode 10.Its
As a result, in the part that gap length shortens, become the high electric field that its electric field is higher than other parts, become to be well over being changed into fire
Electric field needed for flower (spark discharge).If producing spark, opposite electrode 10 easily corrodes.
In addition, when powered particulate is adsorbed and is piled up in the opposite electrode 10 with different potentials, can produce reversely
Discharge (back discharge).If the generation position of corona discharge 2 is fixed, so that powered particulate local accumulation is in fixation
Position, then can produce back discharge in fixed position.If back discharge, opposite electrode are produced in fixed position all the time
10 may locally be damaged.In order to suppress this state, it is necessary to periodically be carried out clearly to sparking electrode 100 and opposite electrode 10
The burden of maintenance can be increased to remove particulate by washing.
On the other hand, according to the present embodiment, since sparking electrode 100 does not have protrusion, the production of corona discharge 2
Raw position will not be fixed on specified point.Accordingly, it is capable in the whole area of the corresponding wire in the side of the end 102 with sparking electrode 100
Corona discharge 2 is produced in domain.In the case where corona discharge 2 is formed as point-like, the point of corona discharge 2 will not be fixed on one
Place, but can be on line region in move.Thus, can prevent that the erosion of opposite electrode 10 is locally occurring.In addition, even in
Operation electric precipitation machine 200 in for a long time, can also suppress partly to accumulate dust etc. on sparking electrode 100 and opposite electrode 10 micro-
Grain.As a result, can prevent the gap length caused by particulate accumulation between sparking electrode 100 and opposite electrode 10 from changing,
Therefore the generation of spark can be suppressed.Further, since no longer there is local particulate accumulation, therefore it can also mitigate the shadow of back discharge
Ring.
Fig. 2 is the sectional view of the structure for the electric precipitation machine 200 for representing embodiment 1.Due to corona discharge 2 so that in exhaust gas
Particulate it is negatively charged between sparking electrode 100 and opposite electrode 10.Electronegative particulate utilizes Coulomb force by opposite electrode 10
Collect.
Fig. 3 shows the figure that the A-A ' sections in top view 2 obtain.Sparking electrode 100 includes line part 104 and corner 106
As end 102.The end of sparking electrode 100 is included in " end 102 of sparking electrode 100 does not have the situation of protrusion "
102 can be approximately the situation of the polygons such as quadrangle, pentagon, hexagon.The end 102 of sparking electrode 100 can also be by
Corresponding with the side of polygon line part 104 and using curve make apex portion smooth after corner 106 be connected
Shape.Corner 106 has the radius of curvature of more than half of the gap length d between opposite electrode 10 and sparking electrode 100.This
The sparking electrode 100 of embodiment has the radius of curvature of more than half of gap length d in whole region.
The shape that it is approximately this base electrode shape of the Kenneth Rogoff of arc-shaped that all corners 106 of sparking electrode 100, which can also be,
Shape.Thus, the electric field that can alleviate on corner 106 is concentrated.This base electrode of Kenneth Rogoff is formed in corner 106 and line part 104
The electrode of the quasi- uniform electric field of the roughly the same electric field of size.According to the sparking electrode 100 of the present embodiment, parallel flat can be alleviated
The end effect (edge effect) of electrode forms quasi- uniform electric field, can prevent corona discharge 2 from concentrating on the angle of sparking electrode 100
At the one of portion 106.
Fig. 4 is the figure of the shape for the sparking electrode 100 for representing embodiment 2.In the same manner as Fig. 3, show in top view 2
The figure that A-A ' sections obtain.The electric precipitation machine 200 of embodiment 2 is compared with the electric precipitation machine 200 of embodiment 1, except electric discharge
It is all identical beyond the shape of electrode 100.Therefore, the repeat specification to other structures is omitted, and same component is used identical
Label illustrate.The sparking electrode 100 of the present embodiment is rectangle.Diagonal section 106 applies R chamferings.Accordingly, it is capable to simplify electric discharge electricity
The manufacturing process of pole 100.
In the present embodiment, the end 102 of sparking electrode 100 does not have protrusion yet.In the present embodiment, sparking electrode
100 end 102 need not have the radius of curvature of more than half of gap length d in all areas.With sparking electrode 100
Have a case that the protrusions such as spine shape are compared, can also mitigate corona discharge 2 using the sparking electrode 100 of the present embodiment
The phenomenon that generation position is fixed.Alternatively, it is also possible to different from the present embodiment, the shape of sparking electrode 100 is not carry out R chamferings
The convex polygon such as pentagon and hexagon.
Fig. 5 is the figure of the shape for the sparking electrode 100 for representing embodiment 3.It is same with Fig. 3, the A- in top view 2 is shown
The figure that A ' sections obtain.The electric precipitation machine 200 of embodiment 3 compared with the electric precipitation machine 200 of embodiment 1 and embodiment 2,
It is all identical in addition to the shape of sparking electrode 100.Therefore, the repeat specification to other structures is omitted, and to same component
Illustrated using identical label.
The sparking electrode 100 of the present embodiment is circular plate shape.That is, the end 102 of sparking electrode 100 is circle." electric discharge electricity
The end 102 comprising sparking electrode 100 is by circular and ellipse etc. in situation of the end 102 of pole 100 without protrusion "
The situation that closed curve is formed.In the present embodiment, between the radius ratio opposite electrode 10 and sparking electrode 100 of sparking electrode 100
Z-direction on gap length d it is big.Therefore, sparking electrode 100 has more than half of gap length d in whole region
Radius of curvature.
According to the present embodiment, the end 102 of sparking electrode 100 is formed by the curve of same curvature radius.Therefore, it is produced
Electric field it is substantially identical, it is unrelated with the position on end 102.Therefore, it is possible to the influence from corner 106, in sparking electrode
Corona discharge 2 is equably produced on 100 whole end 102.In the case where corona discharge 2 is formed as point-like, corona discharge 2
Point will not be fixed at one, can be along circular 102 random movement of end.Accordingly, it is capable to suppress the generation of spark, slow down and put
The erosion of electrode 100.
Fig. 6 is the figure of the shape for the sparking electrode 100 for representing embodiment 4.It is same with Fig. 3, the A- in top view 2 is shown
The figure that A ' sections obtain.The electric precipitation machine 200 of embodiment 4 is compared with the electric precipitation machine 200 of embodiment 1, except electric discharge electricity
Pole 100 has all identical beyond pass through openings portion 110.Therefore, the repeat specification to other structures is omitted, and to same component
Illustrated using identical label.
The edge part 112 in pass through openings portion 110 can have the shape that the polygon of R chamferings is implemented in apex portion.
The straight edge portion 114 and smooth apex portion using curve that edge part 112 includes the four edges for corresponding to rectangle
Angled edge portion 116 afterwards.Angled edge portion 116 have the half of gap length d between opposite electrode 10 and sparking electrode 100 with
On radius of curvature.Therefore, the sparking electrode 100 of the present embodiment is not only in end 102, but including comprising middle section
There is the radius of curvature of more than half of gap length d, which includes the edge in pass through openings portion 110 in all areas
Portion 112.
In the present embodiment, if forming high electric field region in sparking electrode 100 and opposite electrode 10, it can not only discharge
The end 102 of electrode 100 produces corona discharge 2, also can produce corona discharge 2 in the edge part 112 in pass through openings portion 110.Cause
This, compared with using the situation of the sparking electrode 100 without pass through openings portion 110, by using with pass through openings portion 110
Sparking electrode 100 can increase produce corona discharge 2 position.Therefore, the present embodiment and 1~embodiment of embodiment, 3 phase
Than the collection dust quantity (collection efficiency) of the unit area of electric precipitation machine 200 can be improved.
Fig. 6 shows that the end 102 of sparking electrode 100 is respectively provided with apex portion with the edge part 112 in pass through openings portion 110
Implement the situation of the shape of the polygon of R chamferings.But the sparking electrode 100 of the present embodiment is not limited to the situation, can also
Variform pass through openings portion 110 with shape Yu the end 102 of sparking electrode 100.
Fig. 7 is the figure of the shape for the sparking electrode 100 for representing embodiment 5.It is same with Fig. 3, the A- in top view 2 is shown
The figure that A ' sections obtain.The electric precipitation machine 200 of embodiment 5 is compared with the electric precipitation machine 200 of embodiment 3, except electric discharge electricity
Pole 100 has all identical beyond pass through openings portion 110.Therefore, the repeat specification to other structures is omitted, and to same component
Illustrated using identical label.
In the present embodiment, the edge part 112 in pass through openings portion 110 is rounded.Can also be different from the present embodiment, perforation is opened
The edge part 122 of oral area 110 is using ellipse or other shapes.So as to using the electric discharge electricity without pass through openings portion 110
The situation of pole 100 is compared, and in the present embodiment, by using the sparking electrode 100 with pass through openings portion 110, can increase generation
The position of corona discharge 2.
Fig. 8 is the figure of the shape for the sparking electrode 100 for representing embodiment 6.It is same with Fig. 3, the A- in top view 2 is shown
The figure that A ' sections obtain.The electric precipitation machine 200 of embodiment 6 is compared with the electric precipitation machine 200 of embodiment 5, except electric discharge electricity
It is all identical beyond the shape of pole 100 and the shape difference this point in pass through openings portion 110.Therefore, omit to other structures
Repeat specification, and same component is illustrated using identical label.
The sparking electrode 100 of the present embodiment configures multiple annular portions concentrically.Specifically, sparking electrode 100 has
There is the first annular portion 101 and be configured at the second annular portion 103 of the inner side of the first annular portion 101.First annular portion 101 and second
Circular opening portion i.e. the first opening portion 111 is equipped between annular portion 103.The inner side of second annular portion 103 is equipped with circular
Opening portion i.e. the second opening portion 113.In other words, the sparking electrode 100 of the present embodiment has the first opening portion 111 and the second opening
Portion 113 is as multiple independent pass through openings portions 110.
The end 102 of first annular portion 101 of the present embodiment corresponds to the periphery of the first annular portion 101, becomes electric discharge electricity
The end 102 of pole 100.The periphery of first annular portion 101 has the radius of more than half of gap length d.First opening portion 111
Edge part, that is, first edge portion 115 correspond to the first annular portion 101 inner circumferential and the second annular portion 103 periphery.First circle
The inner circumferential of ring portion 101, the periphery of the second annular portion 103 have the radius of more than half of gap length d.Second opening portion 113
Edge part, that is, second edge portion 117 correspond to the second annular portion 103 inner circumferential.Between the inner circumferential of second annular portion 103 also has
The radius of more than half of gap length d.Therefore, the sparking electrode 100 of the present embodiment is also not only in end 102, but comprising
There is the radius of curvature of more than half of gap length d in all areas including central area.
The sparking electrode 100 of the present embodiment includes multiple independent pass through openings portions 110.Thus, with pass through openings portion 110
Situation for one is compared, and can increase the position for producing corona discharge 2.
Fig. 9 is the figure of the shape for the sparking electrode 100 for representing embodiment 7.It is same with Fig. 3, the A- in top view 2 is shown
The figure that A ' sections obtain.The electric precipitation machine 200 of embodiment 7 is compared with the electric precipitation machine 200 of embodiment 4, except electric discharge electricity
It is all identical beyond the shape of pole 100, the shape in pass through openings portion 110 and quantity difference this point.Therefore, omit to other knots
The repeat specification of structure, and same component is illustrated using identical label.
The sparking electrode 100 of the present embodiment has multiple independent pass through openings portions 110.Pass through openings portion 110 can also
With central portion 140 and multiple peripheral openings portions 146.In the present embodiment, there is a central portion 140 and four weeks
Side opening portion 146.Aperture area of the central portion 140 in multiple pass through openings portions 110 is maximum.Each peripheral openings portion 146
Aperture area be less than central portion 140.Each peripheral openings portion 146 is configured around central portion 140.
In the present embodiment, edge part, that is, center edge edge 122 of central portion 140 has circle.Peripheral openings portion 146
Edge part, that is, peripheral skirt 123 have being smoothed of apex portion after polygonal shape.However, center edge edge 122
And the shape of peripheral skirt 123 is not limited to the situation.Sparking electrode 100 is including center edge not only in end 102
There is the radius of curvature of more than half of gap length d in all areas including portion 122 and peripheral skirt 123.
In general, electric field concentrates on the end 102 of sparking electrode 100, the central portion in the inner side of sparking electrode 100, electric field is not
Easily concentrate.Therefore, in the central portion of the inner side of sparking electrode 100, the region of non-high electric field becomes larger.However, according to the present embodiment
Sparking electrode 100, the central portion 140 positioned at the inner side of sparking electrode 100 can be made to be more than peripheral openings portion 146.Thus, exist
In the edge part of central portion 140, that is, center edge edge 122, electric field strength improves, so that also can be in sparking electrode 100
Centre portion produces corona discharge 2.
Figure 10 is the figure of the shape for the sparking electrode 100 for representing embodiment 8.It is same with Fig. 3, show in top view 2
The figure that A-A ' sections obtain.The electric precipitation machine 200 of embodiment 8 is compared with the electric precipitation machine 200 of embodiment 4, except perforation
The shape and quantity of opening portion 110 and the edge part 112 in pass through openings portion 110 are all identical beyond protruding.Therefore, omission pair
The repeat specification of other structures, and same component is illustrated using identical label.
The sparking electrode 100 of the present embodiment has the 4 pass through openings portions of total for being arranged in 2 rows 2 row on an x-y plane
110.However, the quantity in pass through openings portion 110 is not limited to the situation, can also be different from the present embodiment.The electric discharge of the present embodiment
Electrode 100 is not only in the end 102 of sparking electrode 100, but the institute including the edge part 112 comprising pass through openings portion 110
Having has the radius of curvature of more than half of gap length d in region.
Figure 11 is to observe the sectional view that the sparking electrode 100 of embodiment 8 obtains from the side.Specifically, Figure 11
It is the sectional view for representing the B-B ' sections in Figure 10.In the sparking electrode 100 of the present embodiment, pass through openings portion 110 has to right
Put the edge part 112 of the protrusion of electrode 10.The prominent length of edge part 112 is q.
In the present embodiment, the edge part 112 in multiple pass through openings portions 110 protrudes.However, it is also possible to the present embodiment not
Together, at least one in multiple pass through openings portions 110 has the edge part 112 prominent to opposite electrode 10.In addition it is also possible to have
There is a pass through openings portion 110, and a pass through openings portion 110 has the edge part 112 prominent to opposite electrode 10.Electric discharge
Electrode 100 can be formed by mechanical processings such as punch process so that the edge part 112 in pass through openings portion 110 protrudes.With side
The situation that edge 112 does not protrude is compared, and according to the sparking electrode 100 of the present embodiment, can be more prone to corona discharge 2.
Figure 12 is the figure of the shape for the sparking electrode 100 for representing embodiment 9.It is same with Fig. 3, show in top view 2
The figure that A-A ' sections obtain.The electric precipitation machine 200 of embodiment 9 is compared with the electric precipitation machine 200 of embodiment 8, except perforation
The prominent length of the edge part 112 of opening portion 110 is according to the position difference and the edge part in pass through openings portion 110 in X-direction
112 is all identical beyond apex implementation R chamferings.However, the edge part 112 in pass through openings portion 110 can also be in apex
Implement R chamferings.Therefore, the repeat specification to other structures is omitted, and same component is illustrated using identical label.This
The sparking electrode 100 of embodiment has the 9 pass through openings portions 110 of total for being arranged in 3 rows 3 row on an x-y plane.However, pass through
The quantity for opening up oral area 110 is not limited to the situation, can also be different from the present embodiment.
Figure 13 is to observe the sectional view that the sparking electrode 100 of embodiment 9 obtains from the side.Specifically, Figure 13
It is the sectional view for representing the C-C ' sections in Figure 12.The exhaust gas for importeding into electric precipitation machine 200 flows in the X direction.The present embodiment
Sparking electrode 100 there are multiple pass through openings portions 100, which has the edge prominent to opposite electrode 10
Portion 112.In the sparking electrode 100 of the present embodiment, the prominent length of the edge part 112 in pass through openings portion 110 is in the upstream of exhaust gas
Side is different with downstream.Thus, generation easiness of the corona discharge 2 in the upstream and downstream of exhaust gas can be changed.
In the present embodiment, 3 row pass through openings portions 110 are configured with along the X direction.The edge part 112 in pass through openings portion 110 is prominent
The length gone out is q1 in upstream end, is q2 at middle reaches, is q3 at downstream.As shown in figure 13, q1 is most long, and q3 is most short, and q2 is
Length between q1 and q3.That is, the length that edge part 112 protrudes is longer than downstream in upstream side.
By making the length that edge part 112 protrudes long in downstream in upstream side ratio, so as to make corona discharge 2 in upstream
Side ratio is more prone in downstream.Thus, the region of upstream side is easier dust compared with the region in downstream.Exhaust gas is wrapped
The concentration of the particulate contained more then becomes lower toward downstream side region in the region highest of upstream side.Therefore, according to the present embodiment,
Dust can be efficiently carried out in the particle concentration upstream side higher than downstream.
However, also can be different from the present embodiment, make the prominent length of edge part 112 in pass through openings portion 110 in downstream
It is longer than in upstream side, so as to improve the dust collecting performance in downstream.Thus, particulate can be prevented hastily to be piled up in upstream side, energy
Mitigate the deviation of the particulate accumulation in upstream side and downstream.Accordingly, it is capable to suppress the increase of the maintenance load for removing particulate.
Figure 14 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 10.The electric precipitation machine 200 of the present embodiment
With the structure for being laminated with multiple first modules 210, which has opposite electrode 10 and sparking electrode 100.Change speech
It, the electric precipitation machine 200 of the present embodiment has redundancy in above-below direction.By an opposite electrode 10 and a sparking electrode
100 form a first module 210.In the present embodiment, adjacent interelectrode gap length can be all identical.
In the present embodiment, opposite electrode 10-1 and sparking electrode 100-1 form a first module 210.Equally, opposed electricity
Pole 10-2 and sparking electrode 100-2 forms a first module 210.Opposite electrode 10-3 and sparking electrode 100-3 forms one
First module 210.In the present embodiment, 3 first modules 210 have been laminated in z-direction.However, the stacking number of first module 210
The situation is not limited to, stacking number can also be more than 4.
In the present embodiment, in sparking electrode 100-1, sparking electrode 100-2 and sparking electrode 100-3, and positioned at stacking
The sparking electrode 100-3 relative configurations of the upper end in direction have single opposite electrode 10-4.Single opposite electrode 10-4
It can be omitted.
Opposite electrode 10-1~opposite electrode 10-4 (hereinafter sometimes referred to opposite electrode 10) can also be above-mentioned embodiment party
The opposite electrode 10 illustrated in formula 1~9.Sparking electrode 100-1~sparking electrode 100-3 (hereinafter sometimes referred to sparking electrodes
100) it can also be illustrate in the above embodiment 1~9 sparking electrode 100.Therefore, opposite electrode 10 and electric discharge electricity are omitted
The detailed description of pole 100.
According to the present embodiment, due to being laminated with multiple first modules 210, compared with the situation of a unit, can carry
High collection efficiency.In the case where being laminated with multiple first modules, each sparking electrode 100 of first module 210 is not formed also not
With protrusions such as spine shapes.Accordingly, it is capable to prevent the generation position of corona discharge 2 from fixing.
Figure 15 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 11.The electric precipitation machine 200 of the present embodiment
Except the gap length between opposite electrode 10 and sparking electrode 100 according to the position on the stacked direction of first module 210 and
Beyond different this point, its structure is identical with the electric precipitation machine 200 of embodiment 10.Therefore, the repetition to other structures is omitted
Illustrate, and same component is illustrated using identical label.
In the present embodiment, the stacked direction of first module 210 is Z-direction.Sparking electrode 100-3 is located at sparking electrode 100-
In 1~sparking electrode 100-3, the upper end of Z-direction.Sparking electrode 100-3 and opposite electrode 10-3 are paired.Opposite electrode 10-3
First module 210 is formed with sparking electrode 100-3.In the present embodiment, between opposite electrode 10-3 and sparking electrode 100-3 between
Gap length d2 refers to the gap length between in the upper end of Z-direction, opposite electrode 10-3 and sparking electrode 100-3.
On the other hand, the gap length d1 between opposite electrode 10-2 and sparking electrode 100-2 refers in the central part of Z-direction
, gap length between opposite electrode 10-3 and sparking electrode 100-3.In the present embodiment, opposite electrode 10-3 and electric discharge electricity
Gap length d2 between the 100-3 of pole refers to the gap length d1 between opposite electrode 10-2 and sparking electrode 100-2.
In the present embodiment, sparking electrode 100-1 is located in sparking electrode 100-1~sparking electrode 100-3, under Z-direction
End.It is laminated with the bottom on the stacked direction of multiple first modules 210, opposite electrode 10-1 and sparking electrode
Gap length between 100-1 is also d2.Therefore, in the present embodiment, the gap length d2 of upper end and bottom in Z-direction
It is bigger than the gap length d1 of the central part in Z-direction.However, it is also possible to different from the present embodiment, make upper end in Z-direction or
Gap length in any one end of bottom is bigger than central part.
In the present embodiment, gap length of the sparking electrode 100 respectively between two adjacent opposite electrodes 10 is equal.Tool
For body, the gap length between sparking electrode 100-1 and opposite electrode 10-1 is equal to sparking electrode 100-1 and opposite electrode
Gap length between 10-2, is d2.Gap length between sparking electrode 100-2 and opposite electrode 10-2 is equal to sparking electrode
Gap length between 100-2 and opposite electrode 10-3, is d1.Gap between sparking electrode 100-3 and opposite electrode 10-3
Length is equal to the gap length between sparking electrode 100-3 and opposite electrode 10-4, is d2.
However, it is also possible to it is different from the present embodiment, make sparking electrode 100 respectively between two adjacent opposite electrodes 10
Gap length it is different from each other.Specifically, can increase in two adjacent opposite electrodes 10, close to the end one of Z-direction
Gap between the opposite electrode 10 and sparking electrode 100 of side.
It is more than the viewpoint of the gap length of central part for the gap length made in Z-direction close to bottom side, also may be used
So that the gap length between sparking electrode 100-1 and opposite electrode 10-1 is more than sparking electrode 100-1 and opposite electrode 10-2
Between gap length.It is more than the sight of the gap length of central part for the gap length made in Z-direction close to upper end side
Point, can also make the gap length between sparking electrode 100-3 and opposite electrode 10-4 be more than sparking electrode 100-3 and opposed electricity
Gap length between the 10-3 of pole.
The situation for being laminated 3 first modules 210 is illustrated in the present embodiment, but can also be with the present embodiment not
Together, more than 4 first modules 210 are laminated.It in this case, can grow the gap between opposite electrode 10 and sparking electrode 100
Degree is in z-direction with progressively longer close to upper end or bottom from central part.
In the case of stepped construction being formed being laminated with multiple first modules 210, stacking of the exhaust gas in first module 210
End on direction is difficult to flow.However, in the electric precipitation machine 200 of this example, pass through the end of the stacked direction in first module 210
Expand gap length in portion, so as to make dust become easy.
Figure 16 is the stereogram of the structure for the electric precipitation machine 200 for representing embodiment 12.The electric precipitation machine 200 of the present embodiment
In, at least both ends in z-direction are equipped with second unit 220.In addition to this, the electric precipitation machine 200 of the present embodiment
Structure it is identical with the structure of the electric precipitation machine 200 of embodiment 10.Therefore, the repeat specification to other structures is omitted, and it is right
Same component is illustrated using identical label.
In the present embodiment, central layer in z-direction is laminated with multiple first modules 210.In the present embodiment, 2 are laminated with
A first module 210.However, it is also possible to it is different from the present embodiment, it is laminated more than 3 first modules 210.First module 210
Structure is identical with the situation of embodiment 10.On the other hand, at least two ends in z-direction are equipped with second unit 220.
In the bottom of Z-direction, second unit 220 has end opposite electrode 190-1 and protruding type sparking electrode
180-1.End opposite electrode 190-1 as the 3rd electrode plate is the electrode plate of GND current potentials, also referred to as GND electrodes.As
The protruding type sparking electrode 180-1 of four electrode plates is the electrode plate of high potential.Protruding type sparking electrode 180-1 electricity opposed with end
Pole 190-1 is oppositely arranged.Protruding type sparking electrode 180-1 can also be configured to put down with X/Y plane with end opposite electrode 190-1
OK.
The end 182 of protruding type sparking electrode 180-1 is located at the inner side of the end 192 of end opposite electrode 190-1.This
In, end 182 refers to the end on the direction parallel with X/Y plane.Discharged by DC power supply 20 protruding type of the present embodiment
Electrode 180-1 is applied with negative high voltage.End opposite electrode 190-1 is grounded.
As shown in figure 16, the end 182 of protruding type sparking electrode 180-1 has protrusion 184.Protrusion 184 is thrown
Shadow can have triangle in the shape of X/Y plane.The protrusion 184 of the present embodiment is in spine shape or serrated knife shape.It is prominent
Go out part 184 be provided with along end 182 it is multiple.Protrusion 184 can have the prominent length of more than 1mm 5mm or so.It is prominent
Spacing can be determined in a manner of setting more than 3, less than 5 in every 1cm by going out part 184.In protruding type sparking electrode
In the end 182 of 180-1, protrusion 184 can be set along all sides, protrusion can also be set only along certain edges thereof
184。
In the upper end of Z-direction, second unit 220 has end opposite electrode 190-2 and protruding type sparking electrode
180-2.End opposite electrode 190-2 is the 3rd electrode plate, and protruding type sparking electrode 180-2 is the 4th electrode plate.Z-direction it is upper
The structure and application voltage of the second unit 220 of end can be identical with second unit 220 of the configuration in bottom.
In the present embodiment, 1 second unit 220 is respectively arranged with the both ends of Z-direction.However, it is also possible to this reality
Example difference is applied, multiple second units 220 are set respectively in the upper and lower end of Z-direction.Here, in the center of stacked direction
Portion is laminated with first module 210.The stacking number of second unit 220 is preferably no more than the stacking number of first module 210.
In the case of forming stepped construction being laminated multiple units, in the end of the laminating method of unit, exhaust gas is difficult to
Flowing, therefore the quantity of the deposit such as particulate is also fewer than the central portion of stepped construction.Therefore, in the end of laminating method, i.e.,
Using the protruding type sparking electrode 180 of the conventional protrusion 184 with spine shape, the spark as caused by deposit produces
Raw possibility is also lower than the central portion of stepped construction.For this reason, can be sharp using having in the past at least both ends of stacked direction
The protruding type sparking electrode 180 of the protrusion 184 of shape is pierced, and does not have spine shape in the central portion stacking of stacked direction
Protrusion 184 first module 210 come energetically reduce spark produce.
Figure 17 is the figure for the electric precipitation machine 200 for representing embodiment 13.The electric precipitation machine 200 of embodiment 13 is except utilizing
DC power supply 20 applies sparking electrode 100 beyond positive high voltage, identical with the electric precipitation machine 200 of embodiment 1~12.It is real
Apply in mode 1~12, opposite electrode 10 (or end opposite electrode 190) ground connection, negative height electricity is applied with sparking electrode 100
Pressure.On the other hand, in present embodiment, positive high voltage is applied to replace the high voltage born in embodiment 1~12.
Sparking electrode 100 is applied by DC power supply 20 it is positive it is high-tension in the case of, due to sparking electrode 100
End 102 does not have protrusion, thus can also prevent corona discharge generation position be fixed on protrusion underface or
Directly over person.Thus, opposite electrode can be suppressed to be etched.
Figure 18 is the figure for the summary for representing waste gas cleaning system 400.Waste gas cleaning system 400 removes the engine from vehicle
Deng harmful substances such as sulfur components included in the exhaust gas of discharge.Waste gas cleaning system 400 has electric precipitation machine 200, washing
Device 300 and lift suction pump 350.Electric precipitation machine 200 compares washer 300 and is arranged on upstream.Exhaust gas passes through useless from electric precipitation machine 200
Gas ingress pipe 306 imported into washer 300.Electric precipitation machine 200 uses the electric precipitation machine 200 of the above embodiment 1~13.
Washer 300 has reaction tower 302, nozzle 304 and waste gas ingress pipe 306.Reaction tower 302 has in height side
The inner space upwardly extended.Short transverse in the present embodiment refers in reaction tower 302 from the bottom side 308 imported for exhaust gas
The direction extended to the upper side 310 for exhaust gas discharge.
In washer 300, waste gas ingress pipe 306 is located near the bottom side 308 of reaction tower 302.Exhaust gas can also be set
Ingress pipe 306 so that the exhaust gas imported from waste gas ingress pipe 306 is surround in the shape of a spiral along the inner side surface of reaction tower 302.Instead
Answer the radius of tower 302 can be in more than 0.3m below 10m.
The inside of washer 300 is configured with the clean water pipe 312 for cleaning water flowing.In the present embodiment, reaction tower 302
Upper side 310 is nearby configured with clean water pipe 312.The clean water pipe 312 of the present embodiment hangs down in the short transverse with reaction tower 302
Washing water is transported on straight direction.Washing water is provided from lift suction pump 350 to clean water pipe 312.
Clean water pipe 312 and be equipped with nozzle 304.Nozzle 304 washes exhaust blast from upper side 310 towards bottom side 308
Water purification 314 handles exhaust gas.From the washing water 314 that nozzle 304 ejects with passing through the useless of the inside in reaction tower 302
Gas phase contacts, to be absorbed to sulfur component contained in exhaust gas etc..The fluid storage of sulfur component etc. is absorbed anti-
The bottom side 308 of tower 302 is answered, and the outside of reaction tower 302 is discharged to as waste water.
According to the waste gas cleaning system 400 of the present embodiment, clean be harmful to can will can not be removed merely with electric precipitation machine 200
Material removes.Due to having used the electric precipitation machine 200 of embodiment 1~13 in waste gas cleaning system 400, can suppress because of electricity
The erosion of opposite electrode 10 caused by the generation position fixation of corona 2.
In addition, the two-stage type electric precipitation machine that the above embodiment can also apply to electro-mechanical part and dust portion is separately formed.
The present invention is described for embodiment utilized above, but the technical scope of the present invention is not limited to above-mentioned reality
Apply the scope described in mode.It can make various changes or improve on the basis of the above embodiment, this is to this area skill
It is obvious for art personnel.According to the record of patent claims, above-mentioned various changes and modifications have been carried out
Mode be also included in the technical scope of the present invention.
Label declaration
2 corona discharges
10 opposite electrodes
12 ends
14 sides
20 DC power supplies
100 sparking electrodes
101 first annular portions
102 ends
103 second annular portions
104 line parts
106 corners
110 pass through openings portions
111 first opening portions
112 edge parts
113 second opening portions
114 straight edge portions
115 first edge portions
116 angled edge portions
117 second edge portions
122 center edge edges
123 peripheral edge portions
140 central portions
146 peripheral openings portions
180 protruding type sparking electrodes
182 ends
184 protrusions
190 end opposite electrodes
192 ends
200 electric precipitation machines
210 first modules
220 second units
300 washers
302 reaction towers
304 nozzles
306 waste gas ingress pipes
308 bottom sides
310 upper sides
312 clean water pipe
314 washing waters
350 lift suction pumps
400 waste gas cleaning systems
Claims (14)
- A kind of 1. electric precipitation machine, it is characterised in that including：First electrode plate；AndSecond electrode plate, the second electrode plate are oppositely arranged with the first electrode plate, and end is located at the first electrode plate End inner side,The end of the second electrode plate does not have protrusion.
- 2. electric precipitation machine as claimed in claim 1, it is characterised in that the second electrode plate is flat writing board shape,The second electrode plate has in all areas is equal to the first electrode plate and the gap of the second electrode plate The radius of curvature of more than half.
- 3. electric precipitation machine as claimed in claim 2, it is characterised in that the second electrode plate is comprising line part and tool There is the flat writing board shape in the corner of the radius of curvature.
- 4. electric precipitation machine as claimed in claim 2, it is characterised in that the second electrode plate is circular plate shape.
- 5. as Claims 1-4 any one of them electric precipitation machine, it is characterised in that the second electrode plate have 1 with On pass through openings portion.
- 6. electric precipitation machine as claimed in claim 5, it is characterised in that the pass through openings portion of described more than 1 includes multiple only Vertical pass through openings portion.
- 7. electric precipitation machine as claimed in claim 6, it is characterised in that the pass through openings portion of described more than 1 has：Central portion, the aperture area of the central portion are maximum；AndPeripheral openings portion, the aperture area in the peripheral openings portion is less than the central portion, and configures in the central opening Around portion.
- 8. electric precipitation machine as claimed in claim 1, it is characterised in that the second electrode plate is opened with the perforation of more than 1 Oral area,At least one pass through openings portion in the pass through openings portion of described more than 1 has the side prominent to the first electrode plate Edge.
- 9. electric precipitation machine as claimed in claim 8, it is characterised in that there is the edge part prominent to the first electrode plate The pass through openings portion have it is multiple,The prominent length of the edge part is different with downstream in the upstream side for importeding into the gas of the electric precipitation machine.
- 10. electric precipitation machine as claimed in claim 9, it is characterised in that the prominent length of the edge part is in the upstream side It is longer than in the downstream.
- 11. as claims 1 to 10 any one of them electric precipitation machine, it is characterised in that have the first electrode plate and The first module of the second electrode plate is laminated with multiple.
- 12. electric precipitation machine as claimed in claim 11, it is characterised in that be laminated with multiple stackings in the first module Gap length between in the end in direction, described first electrode plate and the second electrode plate be more than be laminated with it is multiple Gap length between in the central part of the stacked direction of the first module, described first electrode plate and the second electrode plate Degree.
- 13. electric precipitation machine as claimed in claim 11, it is characterised in that further include second unit, which has：The Three electrode plates；And4th electrode plate, the 4th electrode plate are oppositely arranged with the 3rd electrode plate, and end is located at the 3rd electrode plate The inner side of end, and end has protrusion,At least both ends for the stacked direction for being laminated with multiple first modules are provided with the second unit.
- A kind of 14. waste gas cleaning system, it is characterised in that including：Washer, the washer purify exhaust gas；AndAny one of them electric precipitation machine of claim 1 to 13, the electric precipitation machine are arranged on the upstream of the washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111613720.1A CN114308390A (en) | 2015-11-17 | 2015-11-17 | Electric dust remover and exhaust gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/082294 WO2017085791A1 (en) | 2015-11-17 | 2015-11-17 | Electric dust collector and exhaust gas cleaning system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111613720.1A Division CN114308390A (en) | 2015-11-17 | 2015-11-17 | Electric dust remover and exhaust gas purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108025317A true CN108025317A (en) | 2018-05-11 |
Family
ID=58718518
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111613720.1A Pending CN114308390A (en) | 2015-11-17 | 2015-11-17 | Electric dust remover and exhaust gas purification system |
| CN201580082907.XA Pending CN108025317A (en) | 2015-11-17 | 2015-11-17 | Electric precipitation machine and waste gas cleaning system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111613720.1A Pending CN114308390A (en) | 2015-11-17 | 2015-11-17 | Electric dust remover and exhaust gas purification system |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3332873A4 (en) |
| JP (1) | JP6274357B2 (en) |
| KR (1) | KR102059072B1 (en) |
| CN (2) | CN114308390A (en) |
| WO (1) | WO2017085791A1 (en) |
Cited By (2)
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| CN113230808A (en) * | 2021-06-03 | 2021-08-10 | 濮阳职业技术学院 | Road dust absorbing device for civil engineering |
| CN113728524A (en) * | 2019-04-23 | 2021-11-30 | 艾克莱尔株式会社 | Air purifier and manufacturing method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7366366B2 (en) * | 2019-12-24 | 2023-10-23 | 富士電機株式会社 | electrostatic precipitator |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3332873A1 (en) | 2018-06-13 |
| EP3332873A4 (en) | 2018-08-29 |
| JP6274357B2 (en) | 2018-02-07 |
| KR20180038504A (en) | 2018-04-16 |
| JPWO2017085791A1 (en) | 2017-11-16 |
| CN114308390A (en) | 2022-04-12 |
| KR102059072B1 (en) | 2019-12-24 |
| WO2017085791A1 (en) | 2017-05-26 |
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