JP2009034599A - Electrical dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that: the tip of a discharge part of a charged discharge electrode plate rounds by a corona discharge in case of a needle-like or spinous form, and the discharge current decreases to lower a dust collection performance, thus the maintenance becomes necessary; and it becomes necessary to exchange an ionized part or an electrical dust collector in the whole because the charged discharge electrode plate can not be exchanged. <P>SOLUTION: The electrical dust collector comprises a feed bar 6 provided substantially on both end parts of the ionized part perpendicularly to the charged discharge electrode plate 11A, and a feed bar fixing groove 17 provided on the feed bar 6 parallel to a charged grounding electrode plate 10, and is characterized in that an electrode plate fixing end part 12 can be held by an insertion into the feed bar fixing groove 17 and a bending thereof. By inserting the electrode plate fixing end part 12 into the feed bar fixing groove 17 and bending it on the end part of the feed bar fixing groove 17, the charged discharge electrode plate 11A can be fixed to the feed bar 6 while the distance with the charged grounding electrode plate 10 is held. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electrostatic precipitator that collects dust that is airborne particles.

  Currently, air cleaners and smoke separators for home and commercial use, and dust collectors and oil mist removers for tunnel ventilation in industrial use are used to charge airborne substances (dust, oil mist, smoke, etc.) Therefore, an electrostatic precipitator is used to collect airborne substances (dust, oil mist, smoke, etc.) generated in the room, tunnel or factory.

And in the ionization part of the electrostatic precipitator of this use, the charging discharge electrode plate which has a discharge wire and a some protrusion has been used as a discharge electrode of an ionization part. However, when used for a long period of time, the discharge line may break due to corona discharge, and the tip of the needle-like or thorn-shaped discharge electrode having a protrusion becomes round and the dust collection performance gradually deteriorates. For this reason, maintenance is necessary in any case although the length of the life is different. In such a situation, a discharge line method that is particularly easy to cut and has a short life as a discharge electrode has been disclosed, and many methods that can be easily replaced have been disclosed. The problem remained.
Japanese Utility Model Publication No. 1-005651 Japanese Utility Model Publication No. 1-005652 JP-A-8-038938 Japanese Patent No. 3293342

  In general, the discharge electrode of the ionization part is needle-shaped, thorn-shaped, or linear (discharge line), but if it is made linear (discharge line), it is easy to break. The tip of the electrode plate is rounded and the discharge current is reduced, so that the dust collection performance is lowered.

  In this case, since the discharge electrode cannot be replaced, there is a problem that the ionization unit or the electrostatic precipitator must be replaced.

  Accordingly, the present invention provides an electrostatic precipitator capable of easily replacing a charged discharge electrode plate even when the discharge portion of the charged discharge electrode plate is corona discharge and the tip of the electrode plate is rounded to reduce the discharge current. With the goal.

  In order to solve the above-described problems, the present invention provides an ionization unit that generates corona discharge between a charged ground electrode plate and a charged discharge electrode plate to charge dust or the like in the air, and the ionization unit provided on the downstream side. In the electrostatic precipitator consisting of a dust collecting unit that collects dust and the like charged by the unit, a power supply bar provided at almost both ends of the ionization unit at right angles to the charge discharge electrode plate, A power supply bar fixing groove provided in parallel with the charging ground electrode plate is provided, and the electrode plate fixed end portion can be held by being inserted into the power supply bar fixing groove and bent.

  By this means, even if the discharge part of the charging / discharging electrode plate is corona discharge and the tip of the electrode plate becomes round and the discharge current is reduced, the charging / discharging electrode plate can be easily replaced due to simple fixing only by bending. And an electric dust collector with a small number of assembly steps can be obtained.

  The other means includes a support shaft provided at a lower end of the ionization portion at right angles to the charging / discharging electrode plate, and a hooking portion provided in parallel with the charging ground electrode plate on the supporting shaft. The hook groove of the electrode plate is hooked on the hook portion of the support shaft and fixed.

By this means, when replacing the charging / discharging electrode plate, it is possible to easily replace the charging / discharging electrode plate without making the electrostatic precipitator itself sideways or upside down by hooking one side of the charging / discharging electrode plate. An electric dust collector is obtained.

Another means is characterized in that a rising portion that is raised in a direction opposite to the bending direction of the electrode plate fixing end portion is provided on the opening side of the power supply bar fixing groove of the power supply bar.

  By this means, a bent electrode plate fixed end is provided on the opening side of the power supply bar fixing groove of the power supply bar so that the bent electrode plate fixed end is raised in the direction opposite to the bending direction of the electrode plate fixed end. In this way, an electrostatic precipitator that can prevent the discharge electrode plate from coming off in the direction of the feed bar fixing groove can be obtained.

  Another means is characterized in that a notch is provided at the bending position of the electrode plate fixed end.

  By this means, when the electrode plate fixing end is inserted into the power supply bar fixing groove and bent, the power supply bar fixing groove is normally bent as a fulcrum, but the notch is inserted in the bending position of the electrode plate fixing end, Since it can be bent at an arbitrary place by creating a weak portion that bends, an electrostatic precipitator that can prevent the charged discharge electrode plate from rattling can be obtained.

  Another means is characterized in that the notch provided at the bending position of the electrode plate fixed end is round or semicircular and provided at the end in the width direction or the center in the width direction. is there.

  By this means, if the bending position of the fulcrum of the normal power supply bar fixing groove is slightly shifted, the bending position can be adjusted within a circular or semicircular range, so that there is no electric noise caused by variations in parts. A dust collector is obtained.

  Another means is that an intermediate holding bar is provided in the form of being orthogonal to the charging discharge electrode plate in the vicinity of the center of the ionization section, and the intermediate holding bar can be held by inserting the charging discharge electrode plate into the intermediate holding bar. A fixing groove is provided.

  By this means, even when the charging electrode plate is long and thin, or even when the processing wind speed is high, the central portion of the charging electrode plate is held by the intermediate holding bar, so that the electrode plate interval can be maintained and stable dust collection performance can be maintained. An electric dust collector that can be obtained is obtained.

  The other means is characterized in that a reinforcing bead is provided in the longitudinal direction of the charging / discharging electrode plate.

  By providing a reinforcing bead on the discharge electrode plate by this means, it is possible to suppress the vibration / deformation of the discharge plate due to the processing wind speed without increasing the mass, to secure a stable corona discharge, and to prevent a decrease in dust collection performance. Can be obtained.

  The other means is characterized in that the reinforcing bead is an S-shaped cross section or a reinforcing bead having a different drawing direction.

  By this means, by forming the reinforcing beads into S-shaped cross-sections or reinforcing beads that are different in the drawing direction, an electrostatic precipitator can be obtained in which the warping directions cancel each other and the warping can be minimized.

  Further, the charged discharge electrode plate is characterized in that thorn-shaped discharge electrode portions are provided on the periphery and inside sides thereof.

  By this means, it is possible to obtain an electrostatic precipitator in which the charged discharge electrode plate can be easily replaced for simple fixing only by bending even if the discharge electrode portion is easily deteriorated.

  The other means is characterized in that the shape of the pole portion of the charging / discharging electrode plate is a blade shape.

  By this means, the discharge electrode portion of the charging discharge electrode plate is shaped like a blade, so that the corona discharge can be linearly formed in the same manner as the discharge line, so that the dust collection performance can be improved and cut off. An electrostatic precipitator can be obtained that can reduce maintenance.

  In addition, another means is characterized in that a thorn-shaped discharge electrode portion provided on the charging discharge electrode plate is provided only inside.

  By this means, the thorn-shaped discharge electrode part is provided not on the outer periphery of the chargeable discharge electrode plate but on the inner side, so that the damage to the chargeable grounding electrode plate due to the contact with the thorn and the injury of the operator can be prevented. A dust collector is obtained.

  According to the electrostatic precipitator of the present invention, the ionization unit that generates corona discharge between the charged ground electrode plate and the charged discharge electrode plate to charge dust in the air, and the ionization unit provided on the downstream side. In the electrostatic precipitator consisting of a dust collecting unit that collects dust and the like charged by the unit, a power supply bar provided at almost both ends of the ionization unit at right angles to the charge discharge electrode plate, A charged discharge electrode plate having a power supply bar fixing groove provided in parallel with the charging ground electrode plate, and holding the electrode plate fixed end portion by inserting and bending the power supply bar fixed groove. Even if the tip of the electrode plate is rounded due to corona discharge and the discharge current is reduced, the electrostatic discharge plate can be easily replaced for easy fixing by bending only, and the electric collector with fewer assembly steps can be used. Providing a dust device Can.

  A support shaft provided at a lower end of the ionization portion at right angles to the charging discharge electrode plate; and a hooking portion provided in parallel to the charging ground electrode plate on the support shaft, and the hooking groove of the charging discharge electrode plate. By replacing the charging / discharging electrode plate with one side of the charging / discharging electrode plate, the electrostatic precipitator itself can be placed sideways or upside down. Therefore, it is possible to provide an electrostatic precipitator that can easily replace the charged discharge electrode plate without the need to do so.

  In addition, the opening side of the power supply bar fixing groove of the power supply bar is provided with a rising portion that is raised in the direction opposite to the bending direction of the electrode plate fixing end on the opening side of the power supply bar fixing groove of the power supply bar. By providing a raised part on the side that is raised in the direction opposite to the bending direction of the electrode plate fixed end, the bent electrode plate fixed end hits the raised part, so that the feeding bar fixing groove direction of the charging electrode plate It is possible to provide an electric dust collector that can prevent the device from coming off.

  Also, by providing a notch in the bending position of the electrode plate fixed end, when the electrode plate fixed end is inserted into the power supply bar fixing groove and bent, the normal power supply bar fixing groove serves as a fulcrum. Provided is an electrostatic precipitator that can be bent, but can be bent at an arbitrary position by inserting a notch in the bending position of the electrode plate fixed end portion, so that the electrostatic discharge electrode plate can be prevented from rattling. be able to.

  In addition, the notch part provided at the bending position of the electrode plate fixing end is round or semi-circular, and is provided at the end in the width direction or at the center in the width direction, so that some normal power supply bar fixing When the fulcrum of the groove deviates from the bending position, the bending position can be adjusted within a circular or semicircular range, so that it is possible to provide an electric dust collector that is free from backlash due to component variations.

  In addition, an intermediate holding bar is provided near the central portion of the ionization portion so as to be orthogonal to the charging / discharging electrode plate, and an intermediate holding bar fixing groove that can be held by inserting the charging / discharging electrode plate is provided in the intermediate holding bar. By adopting a configuration, even when the charged electrode plate is long and thin, or even when the processing wind speed is high, the central portion of the charged electrode plate is held by an intermediate holding bar, so that the electrode plate spacing can be maintained and stable dust collection is possible. An electric dust collector capable of obtaining performance can be provided.

  In addition, by providing a reinforcing bead in the longitudinal direction of the charging / discharging electrode plate, by providing a reinforcing bead on the discharging electrode plate, vibration and deformation of the discharging electrode plate due to the processing wind speed can be suppressed without increasing the mass. It is possible to provide an electrostatic precipitator capable of ensuring stable corona discharge and preventing a decrease in dust collection performance.

  In addition, by configuring the reinforcing beads to have S-shaped cross-sections or reinforcing beads having different squeezing directions, the reinforcing beads are reinforced to have different S-shaped cross-sections or different squeezing directions, thereby canceling out the warping directions of each other. Therefore, it is possible to provide an electric dust collector that can minimize warping.

  In addition, by adopting a configuration in which the discharge electrode portion of the charging discharge electrode plate has a blade shape, the discharge electrode portion of the charging discharge electrode plate has a blade shape, so that the corona discharge is linearly the same as the discharge line. Therefore, it is possible to provide an electric dust collector that can improve dust collection performance and can reduce maintenance due to cutting.

  Further, by providing a configuration in which the thorn-shaped discharge electrode portion provided on the charging discharge electrode plate is provided only on the inner side, the thorn-shaped discharge electrode portion is provided on the inner side instead of the outer periphery of the charging discharge electrode plate. It is possible to provide an electrostatic precipitator that can prevent damage to the charged grounding electrode plate and injury of the operator due to contact with the electric field.

  The invention according to claim 1 is charged by an ionization unit that generates corona discharge between the charged ground electrode plate and the charge discharge electrode plate and charges dust or the like in the air, and an ionization unit provided on the downstream side. In an electrostatic precipitator composed of a dust collecting unit that collects dust and the like, a power supply bar provided at almost both ends of the ionization unit at right angles to the charging discharge electrode plate, and a charging ground electrode plate is provided on the power supply bar. An electrostatic precipitator comprising a power feed bar fixing groove provided in parallel and capable of being held by inserting and bending the electrode plate fixed end portion into the power supply bar fixing groove, wherein the electrode plate is placed in the power supply bar fixing groove. By inserting the fixed end portion and bending it with the end portion of the power supply bar fixing groove as a fulcrum, the charged discharge electrode plate can be fixed to the power supply bar while maintaining a distance from the charged ground electrode plate.

  Further, the invention of claim 2 is provided with a support shaft provided at a lower end of the ionization portion at right angles to the charging discharge electrode plate, and a hook portion provided in parallel to the charging ground electrode plate on the support shaft. An electrostatic precipitator having a structure in which a hooking groove of the charging / discharging electrode plate is hooked and fixed to a hooking portion of a support shaft, and when the charging / discharging electrode plate is replaced, the hooking of one of the power supply bars Hook the hooked part of the charging / discharging electrode plate on the part, then insert the electrode plate fixing end into the feeding bar fixing groove of the other feeding bar and bend it with the end of the feeding bar fixing groove as a fulcrum. The charging / discharging electrode plate can be fixed to the power supply bar while maintaining a distance from the power supply bar.

  According to a third aspect of the present invention, there is provided an electric current collector characterized in that a rising portion rising in a direction opposite to the bending direction of the electrode plate fixing end portion is provided on the opening side of the power supply bar fixing groove of the power supply bar. It is a dust device, and the electrode plate fixing end is inserted into the power supply bar fixing groove and bent with the end of the power supply bar fixing groove as a fulcrum, and the bent electrode plate fixing end hits the rising portion of the power supply bar This has the effect of preventing the power feed bar fixing groove from coming off in the opening side direction.

  According to a fourth aspect of the present invention, there is provided an electrostatic precipitator characterized in that a notch is provided at the bent position of the electrode plate fixed end, wherein the notch is provided at the bent position of the electrode plate fixed end. When the electrode plate fixing end is inserted into the power supply bar fixing groove and bent, the power supply bar fixing groove is normally bent as a fulcrum, but the notch is inserted at the bending position of the electrode plate fixing end. By making a weak part that bends, it can be bent at any place.

  The invention according to claim 5 is characterized in that the notch provided in the bending position of the electrode plate fixed end is round or semicircular, and is provided at the end in the width direction or at the center in the width direction. This electrostatic precipitator has the effect that the bending position can be adjusted within a round or semicircular shape even when the fulcrum of the power supply bar fixing groove and the bending position are slightly shifted due to tolerances or variations in parts. .

  In the invention according to claim 6, an intermediate holding bar is provided near the central portion of the ionization portion so as to be orthogonal to the charging discharge electrode plate, and the intermediate discharge bar can be held by inserting the charging discharge electrode plate. An electrostatic precipitator characterized in that it is provided with an intermediate holding bar fixing groove, and holds the vicinity of the middle of the charging / discharging electrode plate by inserting the charging / discharging electrode plate into the intermediate holding bar fixing groove of the intermediate holding bar. Therefore, it has the effect of suppressing lateral blur and displacement due to wind speed and vibration.

  The invention according to claim 7 is an electrostatic precipitator characterized in that a reinforcing bead is provided in the longitudinal direction of the electrostatic discharge electrode plate, and the mass is increased by providing the reinforcing bead on the discharge electrode plate. It has the effect | action which suppresses the vibration and deformation | transformation of the longitudinal direction of a discharge electrode plate by process wind speed without.

  The invention according to claim 8 is an electrostatic precipitator characterized in that the reinforcing bead is an S-shaped cross section or a reinforcing bead having a different drawing direction, and the reinforcing bead is provided not only on one side but in both directions. Thus, it has the effect of canceling each other's warping directions and minimizing the warping.

  The invention according to claim 9 is characterized in that the charged discharge electrode plate is provided with thorn-shaped discharge electrode portions around and inside the discharge electrode plate, and is easily deteriorated. In addition, the electrostatic precipitator can be easily exchanged for simple fixing only by bending.

  The invention according to claim 10 is an electrostatic precipitator characterized in that the shape of the discharge electrode portion of the charged discharge electrode plate is a blade shape, and the tip of the electrostatic discharge electrode plate shape is changed to a blade shape. Since it can be made thin like a discharge line, it has the action of corona discharge in the same line shape as the discharge line.

  The invention described in claim 11 is a hand-drying device characterized in that the thorn-shaped discharge electrode portion provided on the charged discharge electrode plate is provided only on the inner side, and the thorn-shaped discharge electrode portion is charged. By providing the discharge electrode plate not on the outer periphery but on the inner side, when replacing the chargeable discharge electrode plate, it has an effect of preventing damage to the chargeable grounding electrode plate due to contact with thorns and injury of the operator.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The electrostatic precipitator according to the first embodiment will be described with reference to FIGS.

  FIG. 1 is a schematic diagram of an electrostatic precipitator according to an embodiment of the present invention, showing a flow of wind, FIG. 2 is a perspective view of an ionization section of the apparatus, and FIG. 3 is a circuit diagram of an ionization section of the apparatus. 4 is a developed view of the ionization section of the apparatus, FIG. 5 is a perspective view of the charging / discharging electrode plate of the apparatus, and FIG. 6 is a partial detail view showing a fixed state by bending the electrode plate fixing end of the apparatus, FIG. 7 is a partial plan view showing a state where the electrode plate fixing end portion of the apparatus is bent and fixed to the electrode bar, FIG. 8 is a detailed view of the electrode plate fixing end portion provided with the notch portion of the apparatus, and FIG. It is a fragmentary perspective view which shows the connection state to the electrode bar and support shaft of the charging / discharging electrode plate of an apparatus.

  The electric dust collector 1 includes an upstream ionization unit 2 and a downstream dust collection unit 3 with respect to the air to be processed. The ionization unit 2 is provided with a frame 4 at both ends, and a plurality of charged grounding electrode plates 10 are arranged in parallel with a predetermined interval by sandwiching a spacer 9 between them. The threaded shaft 7 is passed through, and nuts 8 are fastened to the screws at both ends of the shaft 7 so that the frame 4 at both ends is fixed with the charged grounding electrode plate 10 group and the spacer 9 group sandwiched therebetween. Conducted. In addition, on the upper and lower sides of the ionization unit 2, a power supply bar 6 provided so as not to contact the left and right frames 4 and the charging ground electrode plate 10 is provided. The upper and lower power supply bars 6 of the ionization unit 2 are connected to each other by a bar holding bracket 13 that is insulated from the frame 4 by an insulator 5 in the frame 4. A power feed bar fixing groove 17 is provided in parallel with the plate 10. On the opening side of the power feed bar fixing groove 17, the rising portion 18 is provided with the rising portion 18 facing the outside of the ionization portion 2. On the other hand, an intermediate holding bar 14 is provided in the center of the ionization unit 2 so as to penetrate the left and right frames 4 and the charging ground electrode plate 10 so as not to come into contact therewith. The intermediate holding bar 14 is connected to the bar holding bracket 13 in the frame 4, and an intermediate holding bar fixing groove 20 parallel to the charging grounding electrode plate 10 is provided at a center position between the charging grounding electrode plates 10. Yes. Further, an electrode plate fixed end portion 12 having a notch portion 19 and a charging / discharging electrode plate 11A having a thorn-shaped discharge electrode 16A on the outer periphery are disposed between the charging ground electrode plates 10. The electrode plate fixing end portion 12 is provided with a circular or semicircular cutout portion 19 at a portion in contact with the corner portion of the power supply bar fixing groove 17.

  Further, the charging discharge electrode plate 11A can be positioned so as to be the center of the charging ground electrode plate 10 by being inserted into the feeding bar fixing groove 17 of the feeding bar 6 and the intermediate holding bar fixing groove 20 of the intermediate holding bar 14. Thereafter, the electrode plate fixing end 12 at the upper and lower ends is fixed by bending it at about 90 degrees. Therefore, the electrification discharge electrode plate 11A and the power feeding bar 6, the intermediate holding bar 14, and the bar holding fitting 13 are electrically connected, and the bar holding fitting 13 is connected to the high voltage generator 15 whose one side is connected to the ground. It has become the composition.

  With the above configuration, the side on which the ionization unit 2 is provided is the windward side, and contaminated air containing dust and the like is allowed to flow in, but the power is a method of suction by a blower provided on the leeward side of the electrostatic precipitator 1. It can be said that this is the best method considering the dirt of the blower. When electricity is supplied to the high voltage generator 15, a high voltage is generated between the bar holding bracket 13 and the ground, applied to the bar holding bracket 13, and fed from the power supply bar 6 and the intermediate holding bar 14 to the charging / discharging electrode plate 11 </ b> A. Is done. As a result, a charge is given by corona discharge generated between the charged discharge electrode plate 11A and the charged ground electrode plate 10, and is charged to the dust of contaminated air. The charged dust or the like flows into the dust collecting unit 3 and is collected by Coulomb force. However, if used for a long time, the tip of the thorn-shaped discharge electrode 16A of the charging / discharging electrode plate 11A is melted and rounded by corona discharge, so that the discharge current is lowered and the dust collection performance is lowered. Even in this case, when the two electrode plate fixing end portions 12 are folded back straightly, they are disengaged from the power supply bar fixing groove 17 of the power supply bar 6 and the intermediate holding bar fixing groove 20 of the intermediate holding bar 14, and the charged discharge electrode plate 11A. Can be removed. On the contrary, when a new charged discharge electrode plate 11A is attached, the two electrode plate fixing end portions 12 are inserted into the power supply bar fixing groove 17 of the power supply bar 6 and the intermediate holding bar fixing groove 20 of the intermediate holding bar 14 is inserted. By inserting the vicinity of the center of the charging / discharging electrode plate 11A, positioning can be performed so as to be at the center between the charging / grounding electrode plates 10. Thereafter, when the electrode plate fixing end portion 12 at the upper and lower ends is bent at about 90 degrees, the electrode plate fixing end portion 12 comes into contact with the rising portion 18 of the power supply bar 6 and cannot be detached from the power supply bar fixing groove 17. At this time, the electrode plate fixed end portion 12 is bent with the corner portion of the power supply bar fixing groove 17 as a fulcrum, but a weak portion that is bent is formed at a portion of the electrode plate fixed end portion 12 that is in contact with the corner portion of the power supply bar fixing groove 17. In addition to being able to bend at any location, even if the fulcrum of the feed bar fixing groove 17 and the bending position are slightly shifted due to tolerances or variations in parts, the bending position is within the range of a round or semicircular shape. It is the structure which can adjust.

(Embodiment 2)
The electrostatic precipitator according to the second embodiment will be described with reference to FIG.

  FIG. 10 is a partial perspective view showing a connection state between the electrode discharge bar of the same apparatus and the intermediate holding bar / support shaft. The same reference numerals are used for the same parts as those in the first embodiment, and Description is omitted.

  In the second embodiment, as shown in FIG. 10 with respect to the first embodiment, a power supply bar 6 is provided in the upper part of the ionization unit 2 and the lower part 4 and the charged grounding electrode plate 10 are not in contact with the lower part. A support shaft 22 is provided so as to penetrate therethrough, and the power supply bar 6 and the support shaft 22 are connected within the frame 4 by a bar holding metal 13 which is insulated from the frame 4 by the insulator 5. Further, the support shaft 22 is provided with a groove-like hook portion 21 parallel to the charging ground electrode plate 10 at a center position between the charging ground electrode plates 10.

  Further, between the charged ground electrode plates 10, there is disposed a charged discharge electrode plate 11B having an electrode plate fixed end portion 12 on the upper portion, a key-like hooking groove 23 on the lower portion, and a thorn-shaped discharge electrode 16A on the outer periphery. It has been configured.

  With the above configuration, when the tip of the discharge electrode 16A of the charging discharge electrode plate 11A is melted and rounded by corona discharge after long-term use, and the replacement of the charging discharge electrode plate 11A becomes necessary, the upper portion of the charging discharge electrode plate 11A When the bending of the electrode plate fixing end portion 12 is straightened, the electrode plate fixing end portion 12 is removed from the power supply bar fixing groove 17 of the power supply bar 6 and the intermediate holding bar 14 is fixed. The charge discharge electrode plate 11B can be completely removed by removing the catching groove 23 that is detached from the groove 20 and finally caught on the support shaft 22 from the hooking portion 21 of the support shaft 22.

  On the contrary, when a new charged discharge electrode plate 11B is attached, first, the hook groove 23 of the charge discharge electrode plate 11B is hooked on the hook portion 21 of the support shaft 22, and then the opposite electrode plate fixed end portion 12 is connected to the feed bar 6. Can be positioned so as to be at the center between the charged ground electrode plates 10 by inserting the vicinity of the center of the charging electrode plate 11B into the intermediate holding bar fixing groove 20 of the intermediate holding bar 14. . Thereafter, when the electrode plate fixing end portion 12 is bent at about 90 degrees, the electrode plate fixing end portion 12 comes into contact with the rising portion 18 of the power supply bar 6 and thus cannot be detached from the power supply bar fixing groove 17.

(Embodiment 3)
The electrostatic precipitator according to the third embodiment will be described with reference to FIGS. 11 to 14.

  11 is a perspective view showing a state in which a reinforcing bead is provided on the charging / discharging electrode plate of the apparatus, FIG. 12 is a partial cross-sectional view of the reinforcing bead provided on the charging / discharging electrode plate of the apparatus, and FIG. 13 is a charging of the apparatus. FIG. 14 is a partial cross-sectional view of a reinforcing bead having a different throttle direction provided on the charging discharge electrode plate of the apparatus, and FIG. 14 is a partial cross-sectional view of the discharge electrode plate. The same parts are denoted by the same reference numerals, and description thereof will be omitted.

  In the third embodiment, as shown in FIGS. 11 and 12, a reinforcing bead 24A is provided in the longitudinal direction of the charging / discharging electrode plate 11C as compared with the first embodiment. Alternatively, as shown in FIGS. 13 and 14, a reinforcing bead 24B having an S-shaped cross section or a different drawing direction in the longitudinal direction of the charging / discharging electrode plate 11D is employed.

  With the above-described configuration, the longitudinal strength of the charging / discharging electrode plate 11C is increased, so that vibration / deformation of the charging / discharging electrode plate 11C in the longitudinal direction due to the processing wind speed can be suppressed without increasing the mass. Further, by making the reinforcing bead 24A into a reinforcing bead 24B having an S-shaped cross section or a different drawing direction, the warping directions at the time of processing are canceled out, so that the overall warping can be minimized.

(Embodiment 4)
The electrostatic precipitator according to the fourth embodiment will be described with reference to FIGS. 15 and 16.

  FIG. 15 is a perspective view showing a state in which the discharge electrode portion of the apparatus has a blade shape, and FIG. 16 is a partial cross-sectional view showing a state in which the discharge electrode portion of the device has a blade shape, the same as in the first embodiment. About the part, the same code | symbol is used and description about them is abbreviate | omitted.

  The fourth embodiment has a configuration in which the shape of the discharge electrode portion 16B of the charged discharge electrode plate 11E is a blade shape compared to the first embodiment.

  With the above configuration, the discharge electrode portion 16B of the charging discharge electrode plate 11E has a blade-like shape, so that the tip can be made thin like a discharge line and corona discharge can be performed in the same line shape as the discharge line. By suppressing the concentration, the tip of the discharge electrode portion 16B is difficult to be rounded, and maintenance can be reduced.

(Embodiment 5)
The electrostatic precipitator according to the fifth embodiment will be described with reference to FIG.

  FIG. 17 is a perspective view showing a state in which the discharge electrode portion of the apparatus is provided only inside the charged discharge electrode plate. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. .

  As shown in FIG. 17, the fifth embodiment has a configuration in which a barbed discharge electrode portion provided on the charging discharge electrode plate is provided only on the inner side as shown in FIG. 17.

  With the above configuration, the thorn-shaped discharge electrode portion 16C is provided not on the outer periphery of the chargeable discharge electrode plate 11F but on the inner side, so that when the chargeable discharge electrode plate 11F is replaced, the charged ground electrode plate 10 is brought into contact with the thorn. This will prevent injury and worker injury.

  The electrostatic precipitator of the present invention can be applied to an electrostatic precipitator that charges and charges the dust by corona discharge, and collects the charged dust by Coulomb force. In industrial use, it can also be used in tunnel dust collectors and oil mist removers.

The figure which showed the flow of the wind in the schematic of the electrostatic precipitator by embodiment of this invention Perspective view of the ionization part of the device Circuit diagram of ionization section of the device Development view of the ionization section of the equipment Perspective view of the charging / discharging electrode plate of the device Partial detail drawing which shows the fixed state by the bending of the electrode plate fixed end of the apparatus Partial plan view showing a state in which the electrode plate fixing end of the apparatus is bent and fixed to the electrode bar Detailed view of the fixed end of the electrode plate with a notch in the device Partial perspective view showing the state of connection of the electrostatic discharge electrode plate of the apparatus to the electrode bar and the support shaft Partial perspective view showing the state of connection between the electrode discharge bar of the same apparatus and the intermediate holding bar / support shaft The perspective view which shows the state which provided the reinforcement bead in the charging / discharging electrode plate of the apparatus Partial cross-sectional view of a reinforcing bead provided on the electrostatic discharge electrode plate of the same device The perspective view which shows the state which provided the reinforcement bead from which an aperture direction differs in the charging discharge electrode plate of the apparatus Partial cross-sectional view of a reinforcing bead with a different aperture direction provided on the electrostatic discharge electrode plate of the same device The perspective view which shows the state which made the discharge electrode part of the apparatus the shape of a blade Partial cross-sectional view showing a state in which the discharge electrode portion of the device is shaped like a blade The perspective view which shows the state which provided the discharge electrode part of the apparatus only in the inside of the charging discharge electrode plate

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrostatic precipitator 2 Ionization part 3 Dust collection part 6 Feeding bar 10 Charging earthing electrode plate 11A Charging discharge electrode plate 12 Electrode plate fixed end part 14 Intermediate holding bar 17 Feeding bar fixing groove 16B Discharge electrode part 16C Discharge electrode part 18 Standing Raised portion 19 Notched portion 20 Intermediate holding bar fixing groove 21 Hook portion 22 Support shaft 23 Hook groove 24A Reinforcement bead 24B Reinforcement bead

Claims (11)

An ionization unit that generates corona discharge between the charging ground electrode plate and the charging discharge electrode plate to charge dust in the air and the like, and dust collected by the ionization unit provided on the downstream side are collected. In an electrostatic precipitator comprising a dust collector, a power supply bar provided at substantially both ends of the ionization unit at right angles to the charged discharge electrode plate, and the power supply bar provided in parallel with the charged ground electrode plate An electrostatic precipitator comprising a power feed bar fixing groove and capable of being held by inserting and bending an end portion of the charging / discharging electrode plate into the power feed bar fixing groove. A support shaft provided at a lower end of the ionization portion orthogonal to the charging / discharging electrode plate, and a hooking portion provided in parallel with the charging / grounding electrode plate on the supporting shaft, and supporting a catching groove of the charging / discharging electrode plate. The electrostatic precipitator according to claim 1, wherein the electrostatic precipitator is fixed by being hooked to a hook portion of the shaft. 3. The electrostatic precipitator according to claim 1, wherein a rising portion that is raised in a direction opposite to a bending direction of the electrode plate fixing end portion is provided on the opening side of the power supply bar fixing groove of the power supply bar. The electrostatic precipitator according to any one of claims 1 to 3, wherein a notch is provided at a bending position of the electrode plate fixed end. 5. The electrostatic precipitator according to claim 4, wherein the notch provided in the bending position of the electrode plate fixed end is round or semicircular, and is provided at the end in the width direction or at the center in the width direction. . An intermediate holding bar is provided near the central portion of the ionization section so as to be orthogonal to the charging / discharging electrode plate, and the intermediate holding bar is provided with an intermediate holding bar fixing groove that can be held by inserting the charging / discharging electrode plate. The electrostatic precipitator according to claim 1, wherein the electrostatic precipitator is characterized. The electrostatic precipitator according to any one of claims 1 to 6, wherein a reinforcing bead is provided in a longitudinal direction of the electrostatic discharge electrode plate. 8. The electrostatic precipitator according to claim 7, wherein the reinforcing bead is an S-shaped cross section or a reinforcing bead having a different drawing direction. The electrostatic collector according to any one of claims 1 to 8, wherein the charged discharge electrode plate is provided with thorn-shaped discharge electrode portions on the periphery and inside sides thereof. The electrostatic collector according to claim 1, wherein the discharge electrode portion of the charged discharge electrode plate has a blade shape. 9. The current collector according to claim 1, wherein a thorn-shaped discharge electrode portion provided on the charging discharge electrode plate is provided only on the inner side.

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