JP2001038241A - Electrode supporting method and apparatus in electrostatic dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach a plurality of flat plate-shaped electrodes parallel by alternately laminating flat plate-shaped dust non-collection electrodes and dust collection electrodes parallel at a predetermined interval and allowing both electrodes to pierce through the first stopper of a first support member and inserting engaging projections in engaging holes before inserting the first stopper. SOLUTION: Dust non-collection electrodes 3 and dust collection electrodes 5 are alternately stacked by aligning positioning holes 29 with through-holes 41. Next, the first support 23 of a first support member 7 is passed through the positioning holes 29 and the through-holes 41 and the engaging projection 37 of the positioning hole 29 of the dust non-collection electrode 3 is successively fitted in the engaging hole of the first support 23 one by one and the first stopper 23 is inserted up to this position. Then, the engaging projection 37 of the positioning hole 29 of the next dust non-collection electrode 3 is inserted in the next engaging hole of the first support 23 and the first stopper 43 is inserted up to this position. This operation is repeated successively to locate the dust non-collection electrodes 3 at predetermined positions. The dust collection electrodes 5 are laminated in the same way by a second support member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode supporting method and an electrode supporting device in an electrostatic precipitator.

[0002]

2. Description of the Related Art Conventionally, dust in the air ionized by corona discharge of a charging unit is connected to a power supply to form an electric field between a non-dust collecting electrode and a dust collecting electrode. There is known an electrostatic dust collector which collects the dust on a dust collecting electrode.

In such an electrostatic dust collector, a metal has been used as an electrode because of requirements for collection efficiency and strength. However, if metal is used for the electrodes, sparks are likely to occur when relatively large dust adheres between the electrodes,
As shown in Registered Utility Model No. 3031345 (see FIG. 14), a comb-shaped charging rod 103 for supporting the non-dust collecting electrode 101 and supplying power to the non-dust collecting electrode 101 is formed of a semi-insulating resin. And the non-dust collecting electrode 101
The dust collecting electrode 105 is inserted into the comb-like ground rod 107 so as not to contact with the ground.

[0004]

However, in such a conventional technique, the comb-like charging rod 103 supporting the non-dust collecting electrode 101 has a cross section as shown in FIG. It is rotated and fixed after insertion (see FIG. 15B). For this reason, since the shape of the hole 109 provided in the non-dust collecting electrode 101 is the same, the charging rod 103 may be inserted if the positions and directions of the holes 109 of all the non-dust collecting electrodes 101 do not match at the time of mounting. There is a problem that it is not possible and assembly is troublesome.

Further, as shown in FIG. 16, the charging rod 103 is inserted into the hole 109 of the non-dust collecting electrode 101 and then rotated to support the non-dust collecting electrode 101 at a predetermined interval. For this reason, the non-dust collecting electrode 101 is held by a jig so as not to rotate at the time of mounting. However, if the jig is removed after the mounting, the non-dust collecting electrode 101 may come off and there is a problem that it is difficult to assemble.

Further, as shown in FIGS. 17A and 17B, the charging rod 103 and the non-dust collecting electrode 101 are
This is a point contact at point P, and has a problem that it is not necessarily suitable as a power supply member because the contact area is small.

SUMMARY OF THE INVENTION An object of the present invention is to pay attention to the above-mentioned prior art, and it is possible to easily attach a plurality of flat electrodes in parallel and to assemble them into a main body easily and securely. An object of the present invention is to provide an electrode support method and an electrode support device in an electrostatic dust collector that functions as a power supply member.

[0008]

According to a first aspect of the present invention, there is provided a method for supporting an electrode in an electrostatic precipitator according to the first aspect of the present invention, wherein dust in air ionized by corona discharge of a charging unit is removed. An electrode supporting method for an electrostatic precipitator that electrostatically collects in an electric field generated between a non-precipitating electrode and a non-precipitating electrode, wherein the flat non-collecting electrode and the flat The dust collecting electrodes are alternately stacked in parallel at a predetermined interval, and the non-collecting electrodes are positioned in the non-collecting electrode positioning holes provided in the first support of the first support member that penetrates so as not to contact the dust collecting electrodes. After inserting the locking projection provided in the positioning hole for the first support member of the dust electrode, the first stopper of the first support member is inserted into the space behind the first support. is there.

Therefore, the flat non-collecting electrode and the flat dust collecting electrode are alternately stacked in parallel at a predetermined interval, and the non-dust collecting electrode and the dust collecting electrode are penetrated by the first support of the first support member. The locking projection of the positioning hole for the first support member provided on the non-dust collection electrode is inserted into the non-collection electrode positioning hole provided on the first support, and the space behind the first support is inserted into the space behind the first support. The first stopper is inserted so that the first support does not come out of the first support member positioning hole without contacting the dust collecting electrode.

According to a second aspect of the present invention, there is provided an electrode supporting method for an electrostatic precipitator according to the first aspect of the present invention, wherein the non-electrostatic precipitator supports the dust collecting electrode when supporting the dust collecting electrode. Engagement protrusions provided in the second support member positioning holes of the second support member of the second support member that penetrate so as not to contact the dust collection electrodes And then inserting the second stopper of the second support member into the space behind the second support.

Therefore, the flat non-collecting electrode and the flat dust collecting electrode are alternately stacked in parallel at a predetermined interval, and the non-dust collecting electrode and the dust collecting electrode are penetrated by the second support of the second support member. The locking projection of the second support member positioning hole provided in the dust collection electrode is inserted into the dust collection electrode positioning hole provided in the second support, and the second support member is inserted into the space behind the second support. A stopper is inserted to prevent the second support from coming out of the second support member positioning hole without contacting the non-dust collecting electrode.

According to a third aspect of the present invention, there is provided the electrode supporting method in the electrostatic dust collecting apparatus according to the first or second aspect, wherein the first supporting member and the second supporting member are provided. Are positioned by being fitted into positioning blocks provided on a plate sandwiching the first support member and the second support member.

Accordingly, both ends of the first support member and the second support member are fitted into the positioning blocks provided on the upper and lower plates for positioning, and the both ends are pressed down by the upper and lower plates to prevent falling off.

According to a fourth aspect of the present invention, there is provided an electrode supporting device for an electrostatic precipitator, wherein a dust in the air ionized by corona discharge of a charging unit is alternately stacked in parallel at a predetermined interval. An electrode supporting device of an electrostatic precipitator that electrostatically collects in an electric field generated between a precipitating electrode and a plate-shaped precipitating electrode, and penetrates so as not to contact the precipitating electrode. A first support member provided to support and supply power to the non-dust collection electrode, and a second support member provided to penetrate so as not to contact the non-dust collection electrode and to support and supply the dust collection electrode,
Comprising, a first support having a non-dust collecting electrode positioning hole for positioning by inserting a locking projection of a first supporting member positioning hole provided in the non-dust collecting electrode, A first stopper that is inserted into the space behind the first support in the positioning hole for the first support member to prevent the first support from falling out of the non-dust collecting electrode, and the second support member has the A second support having a dust collecting electrode positioning hole for inserting and positioning a locking projection of a second supporting member positioning hole provided in the dust collecting electrode; and a second support in the second supporting member positioning hole. A second stopper inserted into the back space to prevent the second support from coming off the dust collecting electrode.

Therefore, the plate-shaped non-dust collecting electrode and the plate-shaped dust collecting electrode are alternately stacked with their positions aligned, and the first support of the first support member allows the non-dust collecting electrode and the dust collecting electrode to penetrate. After the positioning of the first support member positioning hole provided in the non-dust collecting electrode by inserting the locking projection into the non-collecting electrode positioning hole of the first support, the first stopper is provided in the space behind the first support. To prevent falling off. The second support of the second support member allows the non-dust collecting electrode and the dust collecting electrode to pass therethrough, and the second support member positioning hole provided in the dust collecting electrode is provided in the second support member dust collecting electrode positioning hole. After the stop projections are inserted and positioned, a second stopper is inserted into the space behind the second support to prevent it from falling off, and non-dust collecting electrodes and dust collecting electrodes are alternately and parallelly stacked at a predetermined interval.

According to a fifth aspect of the present invention, there is provided an electrode supporting apparatus for an electrostatic precipitator according to the fourth aspect, wherein both ends of the first supporting member and the second supporting member are provided. And an upper and lower plate having a positioning block for positioning.

Accordingly, both ends of the first support member and the second support member which support the dust collecting electrode and the non-dust collecting electrode alternately and in parallel at a predetermined interval are fitted into the positioning blocks provided on the upper and lower plates for positioning. As well as the upper and lower plates.

According to a sixth aspect of the present invention, there is provided an electrode supporting device for an electrostatic precipitator according to the fourth aspect, wherein the first support and the first stopper are each rectangular in cross section. A shape or a U-shaped member,
It is characterized by the following.

Therefore, the first support member having a rectangular or U-shaped cross section of the first support member is passed through the positioning hole for the first support member of the non-dust collecting electrode, and the first support member is provided with the non-collector provided at a predetermined interval. The locking projection of the first support member positioning hole is inserted into the dust electrode positioning hole, and the first stopper is inserted into the space behind the first support. At this time, when one non-dust collecting electrode is inserted into the first support, the first stopper is inserted to that position.

According to a seventh aspect of the present invention, there is provided an electrode supporting device for an electrostatic precipitator according to the fourth aspect, wherein the second support and the second stopper are each rectangular in cross section. A shape or a U-shaped member,
It is characterized by the following.

Accordingly, the second support having a rectangular or U-shaped cross section of the second support member is passed through the positioning hole for the second support member of the dust collection electrode, and the dust collection electrode provided on the second support at a predetermined interval. The locking projection of the second support member positioning hole is inserted into the second support member positioning hole, and the second stopper is inserted into the space behind the second support. At this time, after one dust collecting electrode is inserted into the second support, the second stopper is inserted to that position.

According to an eighth aspect of the present invention, there is provided the electrode supporting device of the electrostatic dust collecting device according to the fifth aspect, wherein the second supporting member is provided on the upper and lower plates. A rib for preventing leakage current is provided outside the positioning block for use.

Therefore, even if dirt adheres to the surfaces of the upper and lower plates, a leakage current preventing rib is provided outside the positioning block for fixing the second support member, and the creepage distance is increased. To prevent.

[0024]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an overall view of a dust collecting section 1 of an electrostatic dust collecting apparatus according to the present invention. In the dust collecting section 1, non-dust collecting electrodes 3 to which a relatively high voltage is applied and dust collecting electrodes 5 to which a relatively low voltage is applied are alternately arranged in parallel at predetermined intervals, and are not shown. The dust in the air ionized by passing through the corona discharge space of the charging unit is electrostatically adsorbed to the dust collection electrode 5.

The non-dust collecting electrode 3 is provided with a plurality of first support members 7.
The upper and lower plates 11 are provided on the upper and lower sides in contact with the upper and lower first contacts 9U and 9L for power supply provided on the upper and lower sides.
Positioned and supported by U and 11L. At least one of the upper and lower first contacts 9U and 9L is connected to a power supply (not shown).

The dust collecting electrode 5 is supported by a plurality of second support members 13.
Are positioned and supported by the upper and lower plates 11U and 11L such that the upper and lower ends do not contact the upper and lower first contacts 9U and 9L.

Referring also to FIG. 12, the upper and lower first contacts 9U and 9L are electrically connected by a second contact 15 which is a jumper. The side surfaces of the non-dust collecting electrode 3 and the dust collecting electrode 5 and the second contact 15 are covered by left and right side plates 17L and 17R. It is exposed to the outside through a window 21 provided on one (for example, right side) side plate 17R to facilitate connection to a power supply (not shown).

The non-dust collecting electrode 3 and the first support member 7
Is 10⁸Ωcm or more (10¹⁰-10 ¹³Ωcm is desirable
Molded with semi-insulating resin with volume resistivity
Have been. Also, the dust collecting electrode 5 and the second support member 13
Is 10⁸Conductive material with volume resistivity less than Ωcm
(For example, may be metal or resin)
ing.

Referring to FIG. 2 and FIG. 3, the position of the first support member 7 on the non-dust collecting electrode 3 is located on the side of the first support 23 having a rectangular cross section. A positioning hole 29 having a shape having a projection 27 (see FIG. 6) that fits into the provided non-collecting electrode 3 positioning locking hole 25 is provided corresponding to the arrangement of the first support member 7. I have. Further, a large through hole 31 is provided at the position where the second support member 13 is arranged so as not to contact the second support member 13.

In the arrangement of the first support member 7, the maximum support pitch is determined from the viewpoint of bending of the non-dust collecting electrode 3, and the maximum power supply pitch is determined from the viewpoint of collection efficiency. As a result of an experiment considering that the first support member 7 is both a support member and a power supply member, the pitch Y (m
m), for and applied voltage X by 70mm or less (kV), which is to be set in the range of ^{Y ≦ 2.05 · X 2 -17.7 ·} X + 96.4.

On the other hand, referring to FIG. 4 and FIG. 5, a second support 33 having a U-shaped cross section of the second support member 13 is inserted into the dust collecting electrode 5 and a side surface of the second support 33 is formed. A positioning hole 39 having a shape having a projection 37 that fits into the locking hole 35 provided in the second support member 13 is provided in correspondence with the arrangement of the second support member 13. That is, the positioning holes 39 are provided corresponding to the positions where the large through holes 31 are provided in the non-dust collecting electrode 3. A large through hole 41 is provided at the position where the first support member 7 is arranged so as not to contact the first support member 7. That is, the through hole 41 is provided at a position corresponding to the positioning hole 29 provided in the non-dust collecting electrode 3.

Referring again to FIG. 3, the first support member 7
Is a flexible first support 23 having a rectangular cross section.
And a first stopper 43 having the same width and the same length as the first support 23. The first support 23 has the above-described locking holes 25 at a pitch supporting the non-dust collection electrode 3.
Is provided.

Referring again to FIG. 5, the second support member 13
Is a flexible second support 33 having a U-shaped cross section.
And a second stopper 45 having the same width and the same length as the inside of the second support 33. The first support 23 is provided with the above-described locking holes 35 at a pitch for supporting the dust collection electrode 5. A guide 47 is provided at the tip of the second stopper 45 when the second support 33 is inserted while being fitted inside the U-shape of the second support 33.

Next, a method of attaching the first support member 7 to the non-dust collecting electrode 3 will be described with reference to FIGS.

First, the first support 23 of the first support member 7
Through the space 49 that does not relate to the protrusion 27 of the positioning hole 29 of the non-dust collecting electrode 3 (see FIG. 6A).
The non-dust collecting electrode 3 is aligned with the position of the locking hole 25 of FIG.
(See (B)), the projection 27 of the positioning hole 29 of the non-dust collecting electrode 3 is inserted into the locking hole 25 of the first support 23 (FIG. 6).
(C)). When the first support 23 is moved rightward in FIG. 6 and the projection 27 of the positioning hole 29 is inserted into the locking hole 25 of the first support 23, a space 49 is formed behind the first support 23. First stopper 43
Is inserted from above to prevent the first support 23 from falling off (see FIG. 6D). The method of supporting the dust collecting electrode 5 with the second support member 13 is performed in exactly the same manner as the case of the non-dust collecting electrode 3 described above.

Next, a method of laminating the non-dust collecting electrode 3 and the dust collecting electrode 5 will be described with reference to FIG. First, the non-dust collecting electrodes 3 and the dust collecting electrodes 5 are alternately overlapped with the positioning holes 29 (39) and the through holes 41 (31) aligned (FIG. 7).
(A)), the first support 23 of the first support member 7 is passed through the positioning hole 29 and the through hole 41, and the projections 27 of the positioning hole 29 of the non-dust collecting electrode 3 are sequentially placed one by one.
Of the first stopper 4 until it reaches this position.
3 (see FIG. 7B). Then, the projection 27 of the positioning hole 29 of the next non-dust collecting electrode 3 is connected to the first support 23.
, And the first stopper 43 is inserted to that position (see FIG. 7C). By repeating this in order, the non-dust collection electrode 3 can be positioned at a predetermined position. The non-dust collection electrode 3 is attached to the plurality of first support members 7 in the same procedure. At this time, since the first support member 7 has penetrated the through-hole 31 of the dust collecting electrode 5, the first supporting member 7 can freely move with respect to the dust collecting electrode 5.

On the other hand, the procedure for positioning and fixing the dust collecting electrode 5 by the second support member 13 can be performed in exactly the same manner as in the case of the non-dust collecting electrode 3 described above. After inserting the two supports 33 into the positioning holes 39 and the through holes 31, the second stopper 45 is inserted.
In this case, since the first support member 7 passes through the through hole 31 of the non-dust collecting electrode 3, the first supporting member 7 can freely move with respect to the non-dust collecting electrode 3.

Referring to FIGS. 8A to 8C, the locking portions 51 provided on the upper and lower ends of the first support member 7 on which the non-dust collecting electrode 3 is positioned and fixed as described above. The upper and lower plates 11U, 11L are fitted with the flange portions at the ends of the upper and lower first contacts 9U, 9L and the conductor 53, such as a conductor wire attached to the first contacts 9U, 9L.
L is fitted into a positioning block 55 (see FIG. 11). Thereby, the space between the first support member 7 as the power supply member and the first contacts 9U and 9L is hardly contaminated, and a voltage can be stably applied.

As shown in FIGS. 9A and 9B, the upper and lower ends of the second support member 13 on which the dust collecting electrode 5 is positioned and fixed are provided on the upper and lower plates 11U and 11L. Fit into the positioning block 56 (see FIG. 11). Referring to FIGS. 10A and 10B, ribs 57 and 59 (here, double) are provided around a positioning block 56 into which the second support member 13 is fitted, and the first contact point is provided. 9U, 9L and upper and lower plates 11U, 11L
By increasing the distance (creepage distance) between the contact point between the first support member 13 and the upper and lower plates 11U and 11L, the initial leakage current and the leakage current at the time of contamination due to collection are prevented. It has become. The outer rib 59 is higher than the inner rib 57 and the positioning block 56.

From the above results, when the non-dust collecting electrode 3 is attached to the first support member 7 and when the dust collecting electrode 5 is attached to the second support member 13, the first and second supports 2
3 and 33 are positioned holes 29 and 39 and through holes 41 and 3
1 and the non-dust collecting electrode 3 or the dust collecting electrode 5 one by one.
Projections 27, 3 provided in the positioning holes 29, 39
7 to the first and second supports 23 and 33
After the first stoppers 43 and 45
Is inserted into the space 49 behind the first and second supports 23 and 33 to prevent the falling off, so that the non-dust collecting electrode 3 or the dust collecting electrode 5 can be assembled one by one (FIG. 7A to FIG. 7A).
(C)).

In the meantime, the non-collecting electrodes 3 and the collecting electrodes 5 at the front part are alternately stacked at regular intervals by a jig or the like as in the prior art, and the first and second supports 23 and 33 are formed. Positioning holes 29 and 39 and through holes 41 of each electrode,
31 at a time and the non-dust collecting electrode 3 or the dust collecting electrode 5
Projections 27, 3 provided in the positioning holes 29, 39
7 to the first and second supports 23 and 33
After the first and second stoppers 43 and 45 are
Can be inserted into the space 49 behind the first and second supports 23 and 33 and assembled together. In this case, even if the centers of the positioning holes 29 and 39 and the through holes 41 and 31 are slightly shifted, the first and second supports 2
Positioning holes 29 and 39 and through holes 41 for 3 and 33,
Since the size of 31 is sufficiently large, there is no hindrance to insertion, and when the first and second stoppers 43 and 45 are finally inserted into the space 49 behind the first and second supports 23 and 33, the center is shifted. There is also the effect of correction.

For this reason, assembling becomes very easy as compared with the conventional case where the holes of all the non-dust collecting electrodes 3 or the dust collecting electrodes 5 are aligned and then assembled.

Since the first stoppers 43 and 45 are inserted behind the first and second supports 23 and 33, the first and second supports 23 and 33 can be completely prevented from falling off.

Further, since the contact area between the non-dust collecting electrode 3 and the first support member 7 and the contact area between the dust collecting electrode 5 and the second support member 13 are increased (see FIG. 13), it is ensured that the power is supplied. be able to.

It should be noted that the present invention is not limited to the above-described embodiment of the present invention, but by making appropriate changes,
It can be implemented in other aspects. That is, in the embodiment of the invention described above, the cross section of the first support 23 and the first stopper 43 of the first support member 7 is rectangular, and the second support 33 and the second stopper 45 of the second support member 13 are Although a U-shaped cross section is used, the present invention is not limited to this.

[0047]

As described above, in the electrode supporting method for the electrostatic precipitator according to the first aspect of the present invention, the flat non-precipitating electrodes and the flat precipitating electrodes are alternately arranged in parallel at a predetermined interval. The first non-collecting electrode and the non-collecting electrode are passed through the first support of the first support member, and the non-collecting electrode is provided in the non-collecting electrode positioning hole provided in the first support. Since the locking projection of the positioning hole for the first support member is inserted and the first stopper is inserted into the space behind the first support, the non-dust collection electrode can be easily supported at a predetermined interval, and The first support can be prevented from falling out of the first support member positioning hole without being in contact with the dust electrode.

In the electrode supporting method for an electrostatic precipitator according to a second aspect of the present invention, the flat non-precipitating electrode and the flat precipitating electrode are alternately stacked in parallel at a predetermined interval to form the non-precipitating electrode. And the dust collecting electrode is penetrated by the second support of the second support member, and the second support member positioning hole provided in the dust collection electrode is connected to the dust collection electrode positioning hole provided in the second support. Since the stop projection is inserted and the second stopper is inserted into the space behind the second support, the dust collection electrode can be easily supported at a predetermined interval, and the second support can be supported without contacting the non-dust collection electrode. Can be prevented from falling out of the second support member positioning hole.

According to the third aspect of the present invention, in the method for supporting an electrode in an electrostatic precipitator, both ends of the first support member and the second support member are fitted into positioning blocks provided on the upper and lower plates for positioning. Both ends can be held down by the upper and lower plates to prevent falling off.

In the electrode supporting device of the electrostatic dust collecting device according to the fourth aspect of the present invention, the plate-shaped non-dust collecting electrode and the plate-shaped dust collecting electrode are alternately stacked with their positions aligned, and the first supporting member is formed. The non-dust collection electrode and the dust collection electrode are penetrated by the first support, and the locking projection of the first support member positioning hole provided in the non-dust collection electrode is inserted into the non-dust collection electrode positioning hole of the first support. After the positioning, the first stopper is inserted into the space behind the first support, so that the first support member can be prevented from falling off. The second support of the second support member allows the non-dust collecting electrode and the dust collecting electrode to pass therethrough, and the second support member positioning hole provided in the dust collecting electrode is provided in the second support member dust collecting electrode positioning hole. After the stop projection is inserted and positioned, the second stopper is inserted into the space behind the second support, so that the second support member can be prevented from falling off. Thereby, the non-dust collecting electrode and the dust collecting electrode can be easily and alternately stacked in parallel at a predetermined interval.

According to a fifth aspect of the present invention, there is provided an electrode supporting device for an electrostatic precipitator, wherein both ends of a first supporting member and a second supporting member for supporting a precipitating electrode and a non-precipitating electrode alternately in parallel at predetermined intervals. Can easily be positioned by the son and son by fitting them into positioning blocks provided on the upper and lower plates.

In the electrode supporting device in the electrostatic dust collecting device according to the present invention, the first support having a rectangular or U-shaped cross section of the first supporting member is provided with a positioning hole for the first supporting member of the non-dust collecting electrode. Insert the locking projection of the first support member positioning hole into the non-dust collecting electrode positioning hole provided at a predetermined interval in the first support, and insert the first stopper into the space behind the first support Therefore, it is possible to completely prevent the first support from falling off. At this time, if one non-dust collecting electrode is inserted into the first support, the first stopper is inserted to that position, so that it is not necessary to assemble after aligning all the electrodes, and assemble one by one in order. be able to.

In the electrode supporting device of the electrostatic dust collecting device according to the present invention, the second support having a rectangular or U-shaped cross section of the second supporting member is inserted into the positioning hole for the second supporting member of the dust collecting electrode. Since the locking projection of the positioning hole for the second support member is inserted into the positioning hole for the dust collecting electrode provided at a predetermined interval in the second support, and the second stopper is inserted into the space behind the second support. , It is possible to completely prevent the second support from falling off. At this time, once one non-dust collecting electrode is inserted into the second support, the second stopper is inserted to that position, so that it is not necessary to assemble after all the electrodes are aligned, and assemble one by one in order. be able to.

In the electrode supporting device of the electrostatic dust collecting device according to the present invention, even if dirt adheres to the surfaces of the upper and lower plates, a leakage current preventing rib is provided outside the positioning block for fixing the second supporting member. Is provided to increase the creepage distance, so that leakage current can be prevented.

[Brief description of the drawings]

FIG. 1 is an assembly view showing an entire dust collecting section of an electrostatic dust collecting apparatus according to the present invention.

FIG. 2 is a plan view showing a non-dust collecting electrode.

FIG. 3A is a front view, a side view, and an end view showing a support of a first support member, and FIG. 3B is a view showing a stopper.

FIG. 4 is a plan view showing a dust collecting electrode.

5A is a front view, a side view, and an end view showing a support of a second support member, and FIG. 5B is a view showing a stopper.

FIGS. 6A to 6D are a cross-sectional view and a perspective view showing a step of attaching a non-dust collecting electrode to a first support member.

FIGS. 7A to 7C are a perspective view and a sectional view showing a state of a support and a stopper when a non-dust collecting electrode is attached to a first support member.

FIGS. 8A to 8C are explanatory diagrams illustrating positioning of both ends of a first support member.

FIGS. 9A and 9B are explanatory diagrams illustrating positioning of both ends of a second support member.

FIGS. 10A and 10B are a plan view and a sectional view showing a positioning block and a rib for positioning both ends of a second support member.

FIG. 11 is a cross-sectional view showing a state where a non-dust collection electrode is supported by a first support member and a state where a dust collection electrode is supported by a second support member.

FIG. 12 is a cross-sectional view showing a state where upper and lower first contacts are connected by a second contact.

FIG. 13 is an explanatory diagram showing an electrical contact state between a supporting member and an electrode in the electrode supporting method of the present invention.

FIG. 14 is a front view showing a conventionally known electrode supporting method.

15A and 15B are a perspective view and a cross-sectional view showing an electrode supporting method and a supporting member which are more common than conventional ones.

FIG. 16 is a perspective view showing a mounting state of a supporting member in a conventional electrode supporting method.

FIG. 17 is an explanatory diagram showing a state of electrical contact with an electrode by a conventional electrode support member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electrostatic dust collection device 3 Non-dust collection electrode 5 Dust collection electrode 7 First support member 11U, 11L plate 13 Second support member 23, 33 Support 25, 35 Lock hole 29, 39 Positioning hole 31, 41 Through hole 37 Locking projection 43, 45 Stopper 49 Space 55 Positioning block 57, 59 Leakage current preventing rib

Claims (8)

[Claims] 1. An electrostatic precipitator which electrostatically collects dust in air ionized by corona discharge of a charging unit in an electric field generated between a non-precipitating electrode and a precipitating electrode. An electrode supporting method, wherein the flat non-collecting electrode and the flat dust collecting electrode are alternately stacked in parallel at a predetermined interval, and the first support member penetrates so as not to contact the dust collecting electrode. After inserting the locking projection provided in the positioning hole for the first support member of the non-dust collecting electrode into the non-dust collecting electrode positioning hole provided in the first support, the non-dust collecting electrode is inserted into the space behind the first support. An electrode supporting method for an electrostatic precipitator, comprising: inserting a first stopper of a first support member. 2. A dust collecting electrode positioning hole provided in a second support of a second support member that penetrates the non-dust collecting electrode so as not to contact the non-dust collecting electrode when supporting the dust collecting electrode. The second stopper of the second support member is inserted into the space behind the second support after inserting the locking projection provided in the positioning hole for the second support member of the electrode. An electrode supporting method in the electrostatic dust collector according to the above. 3. The positioning of the first support member and the second support member by fitting both ends of the first support member and the second support member into positioning blocks provided on a plate sandwiching the first support member and the second support member. 3. The method for supporting electrodes in an electrostatic precipitator according to claim 1 or 2. 4. A dust in the air ionized by corona discharge of a charging unit is generated between a plate-shaped non-collecting electrode and a plate-shaped dust collecting electrode alternately and parallelly stacked at a predetermined interval. An electrode support device of an electrostatic precipitator that electrostatically collects in an electric field, wherein the first support is provided to penetrate so as not to contact the precipitating electrode, to support the non-precipitating electrode and supply power. A member, a second support member that is provided to penetrate so as not to contact the non-dust collection electrode, supports the dust collection electrode, and supplies power.
A first support having a non-dust collecting electrode positioning hole for positioning by inserting a locking projection of a first supporting member positioning hole provided in the non-dust collecting electrode, A first stopper that is inserted into the space behind the first support in the positioning hole for the first support member to prevent the first support from falling out of the non-dust collecting electrode, and the second support member has the A second support having a dust collecting electrode positioning hole for inserting and positioning a locking projection of a second supporting member positioning hole provided in the dust collecting electrode; and a second support in the second supporting member positioning hole. An electrode support device for an electrostatic precipitator, comprising: a second stopper that is inserted into the back space to prevent the second support from coming off the dust collection electrode. 5. The electrode support according to claim 4, further comprising an upper and lower plate having a positioning block for positioning both ends of the first support member and the second support member. apparatus. 6. The electrode supporting device according to claim 4, wherein the first support and the first stopper are each a member having a rectangular or U-shaped cross section. 7. The electrode supporting device according to claim 4, wherein the second support and the second stopper are members having a rectangular cross section or a U-shaped cross section, respectively. 8. The electrostatic dust collection according to claim 5, wherein a leakage current preventing rib is provided outside the positioning block for the second support member provided on the upper and lower plates. Electrode support device in the device.