JPH081009Y2 - Discharge electrode for electric dust collector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is directed to fumes, oil mist, and various fine dusts generated during cutting, grinding, forging, die casting, etc. The present invention is used in the technical field of an electrostatic precipitator that collects (hereinafter simply referred to as "fine dust"), and specifically relates to improvement of a discharge electrode suitable for use in the above electrostatic precipitator.

[Conventional technology]

In order to coarsen and collect the above-mentioned fine dust, an electric dust collector has been conventionally used, but the discharge electrode for charging used in this electric dust collector has been conventionally used for charging dust particles. A high voltage was applied to a finer wire to cause discharge, or a high voltage was applied to a large number of needles to cause discharge.

[Problems to be solved by the device]

However, in the case of a discharge electrode using the above-mentioned thin wire (discharge wire), as seen in, for example, Japanese Utility Model Publication No. 61-40360, since the thin wire is stretched with a strong tension with a peen, the thin wire is broken when it is broken. Has a problem that it is entangled with other members and causes a short circuit, which hinders the operation of the dust collector.

On the other hand, in the case of a discharge electrode using a needle, the problem of short circuit due to disconnection such as the above thin wire can be avoided, but because a discharge action from only the tip portion of the needle is used, a large number of needles are arranged side by side. Even if discharged, there was a problem in uniformity and stability of discharge.

Therefore, the technical problem of the present invention is that it is easy to handle and assemble, moreover, uniform and highly stable discharge can be performed, and even if the wire is broken, a uniform discharge can be obtained continuously without causing a short circuit accident. The purpose is to provide electrodes.

[Means for solving the problem]

Means taken in the present invention to solve the above technical problems are as follows.

A thin wire for discharge, which is preformed into a non-linear shape that repeats bending or refraction continuously in the left-right direction with respect to the center line, and a conductive material are used to form a thin and slender thin plate as a whole, and a large number of them are formed in the longitudinal direction. Each support part of the support plate is composed of a support plate in which the mounting parts are arranged side by side with a gap, and the bent parts or bending parts formed by forming the thin wires in the left and right directions are traveled to the left and right sides. To install.

[Action]

 The above means operate as follows.

Since a thin wire that has been formed into a non-linear shape is used as the discharge electrode, the thin wire still maintains its forming state even if the wire is broken, so it will not come into contact with other members to cause a short circuit. The point of using is that the handling is very simple as compared with a thin wire stretched with a strong tension or a needle-shaped electrode, and it is possible to smoothly proceed the assembly work of the electrode and the like.

Even if the thin wire is broken in the middle, the conductive support will substantially connect the broken part, so the problem of immediate discharge stop of the wire break can be solved, and it is possible to continue uniform discharge. To

The preformed thin wire is attached to the support side while maintaining its forming state, that is, with the bent or bent parts formed in the left and right directions traveling to the left and right sides, so even if the wire breaks The state is maintained as it is, and there is no entanglement with or contact with other members, so that it is possible to reliably prevent a short circuit accident at the time of disconnection.

Since the whole supporting plate to which the thin wire is attached is made in the shape of an elongated thin plate, it is possible to extremely easily integrate the supporting plate into the load electrode part of the electrostatic precipitator.

As described above, the technical problems described above can be solved by the above means, and the problems of the conventional technology can be solved.

〔Example〕

Hereinafter, a preferred embodiment of the discharge electrode for an electrostatic precipitator according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded front view of a discharge electrode according to the present invention. In FIG. 1, reference numeral 1 is a support plate which is made of a conductive material such as a metal plate and is formed into an elongated thin plate. 2 and 3 are mounting holes formed at both upper and lower ends thereof, 4 ...
The mounting portion of the caulking structure provided in parallel in the longitudinal direction of the upper surface of FIG.

Next, 5A is a thin wire for discharging that is attached to the above-mentioned support plate 1, and the thin wire 5A shown in the figure is preliminarily formed into a substantially wavy shape (meandering shape) in which bending is continuously repeated in the left-right direction with respect to the center line. Has been formed.

FIG. 2 is a front view of a discharge electrode formed by attaching the above-mentioned corrugated thin wire 5A to the support plate 1 in a state where the bent portions formed by forming in the left and right directions travel to the left and right sides. Are attached to the support plate 1 side by the attaching portions 4 so that the forming state of the thin wire 5A is not deformed.

In addition to the illustrated caulking, welding, adhesion or the like may be considered as the mounting portions 4, but other than these, as long as the thin wire 5A is electrically connected to the support plate 1 side and can be securely fixed. It does not matter even if it is a mounting means, the selection is optional.

Further, FIGS. 3, 4 and 5 show examples of thin wire forming, and FIG. 3 shows a ring-shaped thin wire.
5B, and FIG. 4 shows a trapezoidal thin wire 5C.
The figure shows a triangular (serrated) thin wire 5D.

Each of the above-mentioned thin wires 5B, 5C, 5D is similar to the corrugated thin wire 5A shown in FIG. 1 and FIG. 2 with respect to the upper surface of the support plate 1 by using the respective mounting portions 4. The discharge electrode is formed by attaching the bent portion or the bent portion formed in the left-right direction to the left and right sides while traveling so as not to deform the forming state.

The shape of each thin line shown in the figure is only an example, and the selection thereof is arbitrary.

6 and 7 are a cross-sectional view and a side view of the load electrode portion configured by using the discharge electrode configured as follows, in which 6 indicates a frame body serving as an earth electrode, and 7 indicates this frame. The feed shaft is inserted and fixed in the upper end of the body 6 through the insulators 9, 9. In addition, 10 is also an insulator 12, 1 in the lower end of the frame body 6.
A mounting shaft inserted and fixed via 2 and each of the support plates 1 forming the discharge electrode includes upper and lower shafts.
By inserting 7 and 10 into the respective mounting holes 2 and 3, the structure is built between the upper and lower shafts 7 and 10.

Therefore, according to the load electrode section having the above structure, the fine dust sucked into the housing through the prefilter by the suction force of the fan is charged and coarsened, and adheres to the dust collecting electrode provided behind the load electrode section. In the present invention, each thin wire 5A constituting the above-mentioned discharge electrode can be collected.
5D are all preformed to each shape as shown in FIG. 1 to FIG. 5, and in addition, the mounting portions 4 ...
Since it is fixed to the support plate 1 side so as not to deform the forming state, even if the wire breaks during use, the form is kept in the form kept in the form, and there is no fear of causing a short circuit accident.

Further, since the whole supporting plate 1 to which the thin wires 5A to 5D are attached is made of a conductor, even if these thin wires 5A to 5D are broken in the middle, the supporting plate 1 conducts the broken portion and discharges. I can continue.

〔effect〕

The discharge electrode for an electrostatic precipitator according to the present invention is as described above, and since a fine wire is used as the discharge electrode, uniform and stable discharge can be performed. Formed in a straight line, and the thin wires formed in this way were attached to the mounting part of the support plate made of a conductive material so that the forming state would not be deformed. It is possible to prevent the occurrence of the discharge, to constantly perform stable discharge, to exhibit an excellent charging effect, and to provide a discharge electrode that is extremely easy to assemble and suitable for mass production, and its practical value is extremely high.

[Brief description of drawings]

FIG. 1 is a front view showing a supporting plate and a thin wire constituting the discharge electrode according to the present invention, respectively, removed and FIG. 2 is a front view showing its assembled state, FIGS. 3, 4 and FIG. 5 is a front view showing an embodiment of a thin wire, FIG. 6 is a front sectional view of a load electrode portion constituted by using the discharge electrode of the present invention, and FIG. 7 is a side view thereof. 1 is a support plate made in the shape of an elongated thin plate, 4 is a mounting portion, 5A, 5B,
5C and 5D are thin wires for discharge that have been preformed.

Continued Front Page (72) Takashi Ota Inventor Takashi Ota 8123, Kiga, Hosoe-cho, Inasa-gun, Shizuoka Tokai Amano Co., Ltd. (56) Bibliography Sho 48-56669 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A thin thin wire for discharge, which is preformed into a non-linear shape in which bending or refraction is continuously repeated in the left-right direction with respect to a center line, and a conductive material, and is formed into an elongated thin plate shape as a whole, and is long. A supporting plate in which a plurality of mounting portions are arranged side by side with a space between them, and the bending portion or the bending portion formed by forming the thin wires in the left and right directions is traveled to the left and right sides, and the supporting plate is formed. A discharge electrode for an electrostatic precipitator, characterized by being attached to each mounting portion of.