JPS6234598Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust collecting section of an electrostatic precipitator mainly used for the purpose of air purification.

This type of electrostatic precipitator is a two-stage type that is equipped with a charging section that charges dust by corona discharge, and a dust collection section that consists of a group of positive and negative flat plate electrodes that collect the charged dust particles using Coulomb force. Electrostatic precipitators have been used.

As shown in the first diagram, this electric dust collector includes an air suction gear rally 1, a prefilter 2, a charging section 3,
Arrange the dust collection part 4 and the after filter 5 in this order,
The fan 6 is driven by a motor 7 to suck air into the machine, remove dust, and discharge it from the discharge port.

The present invention aims to simplify the structure of the dust collecting section incorporated in the electrostatic precipitator to facilitate manufacturing, and to provide a dust collecting section that is inexpensive and suitable for disposable use.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 10. Reference numeral 8 denotes an electrode plate with a spacer, and a conductive layer 10 is provided along the center of one side of an insulating film 9 such as a plastic film. ,
Insulating parts 11, 11 are provided on both sides, and both insulating parts 11, 11 are formed into a wave shape to form a spacer part 1.
2 and 12, a contact piece 13 extends from the center of one end of the insulating film 9, and a conductive layer 14 that is electrically connected to the conductive layer 10 is provided on one side of the contact piece 13.
The spacer parts 12, 12 are formed so as to wave at the same height on both the upper and lower sides of the film 9, so that the interval between the upper peak and the lower peak is twice the interval when the electrode plates are stacked. It is set as. 15
is an electrode plate, in which a conductive layer 17 is provided along the center of one side of an insulating film 16 such as a plastic film, insulating parts 18, 18 are provided on both sides of the insulating film 16, and both insulating parts 18, 18 are made into a planar shape. A contact piece 19 extends from the center of one end of the film 16, and a conductive layer 20 that is electrically connected to the conductive layer 17 is provided on one side of the contact piece 19. In addition, each of the above-mentioned electrode plates 8 and 15
The conductive layer can be formed by various methods such as applying a conductive paint, depositing a metal, or pasting a metal foil. 21 is a bottomed case molded from an insulating material, and each of the electrode plates 8 and 15 is
It has a volume that can be stacked and stored, and has openings 22 and 23 on both front and rear walls to allow air to pass through.
The left and right side walls have notches 24 and 25 in the center thereof from the top end to the bottom through which the contact pieces 13 and 19 of each of the electrode plates 8 and 15 pass.

From the upper end opening of this case 21 into the case,
The electrode plates 8 and 15 are arranged such that the insulating film surface of the electrode plate 8 on which the conductive layer 10 is not provided, that is, the insulating surface, and the conductive surface of the conductive layer 17 of the electrode plate 15 face each other. The electrode plates 8 and 15 are stacked alternately, and the contact pieces 13 and 19 of the adjacent electrode plates 8 and 15 are housed in such a way that they protrude out of the case 21 through the notches 24 and 25, and the contact pieces 13 and 19 of the adjacent electrode plates 8 and 15 are turned to opposite sides. The upper end opening of the case 21 is closed with a lid 26, and each notch 24, 25 of the case 21 has a locking part having a spring effect, in which conductive plate pieces 27, 27' are provided at both upper and lower ends thereof. The contact pieces 13 and 19 protrude outside the case 21 as shown in FIG. 2
Assemble the dust collection part so that it is in contact with 7 and 27. Reference numeral 29 in FIG. 7 is a contact terminal for supplying one side of the power source, for example, the positive electrode, to each electrode plate 8 through the plate piece 27. A contact terminal similar to this is also brought into contact with the plate piece 27', and each electrode plate 15 is energized to the other side of the power supply, for example, the negative electrode. These contact terminals should be installed at the location in the electrostatic precipitator where the dust collection section is installed.

In the above embodiment, an example in which the insulating parts 11, 11 on both sides of the insulating film 9 are formed into a wave shape is used as the electrode plate with a spacer.
As shown in the figure, an insulating part 11 on one side of the insulating film 9
are formed into a waveform 12 and stacked alternately with the contact pieces 13 facing oppositely, and the insulating parts of the first and last electrode plates without spacers are attached to the bottom of the case and the lid as shown in Figure 9. It may be supported by support parts 30 and 31 protruding from the sides. In this case, there is no need for an electrode plate in which the insulating portions on both sides of the insulating film are made planar.

Further, in each of the above embodiments, an example was shown in which the electrode plates 8 and 15 are alternately placed in the case 21 and stacked so that the contact pieces 13 and 19 provided thereon face oppositely to each other. As shown in the figure, contact pieces 13' and 19' are provided on the electrode plates 8 and 15 so as to be shifted back and forth with respect to the airflow so as not to overlap, so that these contact pieces 13' and 19' are parallel to each other on the same side. The parallel contact pieces 13', 1 are stacked alternately in a case similar to the case 21, and are passed through cutouts provided in parallel on the same side of the case.
It may be stored so that 9' protrudes outside the case 21.

Since the present invention is constructed as described above, it is possible to fix the electrode plates at regular intervals by simply stacking them in the case, thereby eliminating the need for conventional methods of gluing electrode plates at regular intervals. I can do it. In addition, each pair of electrodes, which are spaced apart by a spacer, are stacked so that the conductive surface of the conductive layer and the insulating surface of the insulating film face each other, so when a high voltage is applied to them, the electrodes There are no sparks in between, allowing for stable and reliable dust collection, and there is no risk of power failure, and sparks can burn or burn the electrodes, which could cause a fire. It also has the advantage that it does not cause any spark noise to cause discomfort to people around it. In addition, the contact pieces of each electrode plate that protrude outside the case automatically come into contact with the conductive plate piece when it is attached to the notch of the case, making assembly easier and manufacturing easier. facilitate the
Manufacturing costs can be reduced. In addition, the structure is simple, and the dust collection performance is no different from conventional products. Moreover, since inexpensive materials can be used for the electrode plates and the case, the production cost can be reduced and an inexpensive dust collecting section can be obtained. Therefore, it is installed in an electrostatic precipitator as a cassette in a detachable manner, and if dust gradually adheres to the electrode plate and the dust collection function deteriorates,
It has the advantage that the dust collecting section can be disposed of by removing the electrode plate from the case and storing a new electrode plate for reuse, or by replacing the entire case with a new dust collecting section.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of an electrostatic precipitator, Figure 2 is a perspective view of the electrode plates used in the dust collecting section according to the present invention, Figure 3 is a side view of them when stacked, and Figure 4 is a side view of Figure 3. 5 is an exploded perspective view of the dust collecting section according to the present invention, FIG. 6 is a perspective view of the assembled dust collecting section, and FIG. 7 is the same as shown in FIG. 6. FIG. 8 is a perspective view showing a modified example of the electrode plate, FIG. 9 is a cross-sectional view of the same electrode plate when stacked, and FIG. 10 is a perspective view showing another modified example of the electrode plate. It is. 8... Electrode plate with spacer, 9... Insulating film, 10... Conductive layer, 11... Insulating section, 12...
... Spacer part, 13 ... Contact piece, 14 ... Conductive layer, 15 ... Electrode plate, 16 ... Insulating film, 1
7... Conductive layer, 18... Insulating section, 19... Contact piece, 20... Conductive layer, 21... Case, 22,2
3...opening, 24, 25...notch.

Claims (1)

[Scope of utility model registration request] An electrode plate comprising a conductive layer provided along the center of one side of an insulating film, insulating parts provided on both sides of the conductive layer, and a contact piece electrically connected to the conductive layer extending from one end of the insulating film. An electrode plate with a spacer is formed by forming an insulating part on both sides or one side of a conductive layer into a wave shape to provide a spacer part, and a conductive layer is provided along the center of one side of an insulating film, and one end of the insulating film is provided with a spacer part. An electrode plate formed by extending a contact piece that is electrically conductive with a conductive layer,
An electrode plate consisting of a conductive layer with flat insulating parts on both sides is placed in an insulating case having an opening through which air passes, such that the insulating surface of the former electrode plate and the conductive layer of the latter electrode plate face each other. The contact pieces of adjacent electrode plates are arranged on opposite sides of the insulating case or on the same side, with the contact pieces of adjacent electrode plates facing oppositely to each other or facing in parallel on the same side. Each notch of the insulating case is covered with a conductive plate so that the contact pieces protruding outside the case come into contact with the plate. A dust collection part for an electrostatic precipitator consisting of a