JPS6127635Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electrostatic precipitator that has an improved insulator that supports a pair of opposing electrodes and an ionizing discharge wire at both ends.

A conventional electrostatic precipitator of this kind will be explained according to FIGS. 1 and 2. Reference numeral 1 denotes a main body case having an air intake port 2 and an air outlet 3, and a pair of grounded electrodes between the intake port 2 and the air outlet 3. plate-like counter electrode 4'
₁ , 4' ₂ , an ionizing discharge wire 5 disposed between these electrodes and to which a positive high voltage is applied, these electrodes 4' ₁ , 4' ₂ , and an insulator 6' ₁ that supports the discharge wire 5 at both ends. , 6' ₂ , a grounded dust collection filter 7 made of foamed metal, etc., and a cross-flow blower 8 are arranged in series in the direction of air flow, and the air is sucked in from the suction port 2. When the air passes through the ionization section A, the contained dust is charged, and the dust is collected by passing through a dust collecting filter 7, and after being cleaned, the air is blown out from the air outlet 3.

By the way, the counter electrodes 4' ₁ and 4' ₂ and the discharge wire 5 are supported and fixed as shown in FIG.
First, the ends of the lower electrodes 4' ₂ are fitted into the insulator support frames 8 ₁ and 8 ₂ integrally protruding from the side wall of the case 1, and the insulators 6' ₁ and 6' ₂ are fitted onto them from above. After that, the discharge wire 5 is fitted into the notch 11' of the insulators 6' ₁ and 6' ₂ , and both ends are fixed to the insulators 6' ₁ and 6' ₂ , and the discharge wire 5 is placed on the insulators 6' ₁ and 6' _2. Upper electrode 4' ₁
The upper electrode _4'1 was fixed by some means.

However, in such a fixing work, each part 6' ₁ , 6' ₂ , 4' that fits into the support frame 8 ₁ , 8 _2
1 , 4', ₂ are disjointed, which makes it difficult to work, and it is difficult to fix the upper electrode _4'1 . Furthermore, the discharge wire 5 must be inserted into the notch 11 _' before fixing the upper electrode 4'1. The workability was poor, and there was no flexibility in the order in which the discharge wires 5 were attached, which was poor in practicality.

The present invention has been developed in view of this problem, and one embodiment thereof will be described with reference to FIGS. 3 to 5. 6
₁ , 6 _{and 2} are improved insulators of the same shape, which are integrally molded from synthetic resin, and have first notches 10, 10 having a pair of elastic holding pieces 9, 9 at the upper and lower ends. In addition, a second notch 11 is provided in the lateral direction approximately in the center, and the first notches 10, 10
When both ends of the electrodes 4 ₁ , 4 ₂ of the same shape are press-fitted into the insulators 6 ₁ , 6 ₂ and the electrodes 4 1 , 4 , both ends are pressed and fixed by the tips of the holding pieces 9 , ₉ .
₂ are integrated without using screws, and the discharge wire 5 has protective tube covering portions 5a, 5a on both ends thereof.
is inserted into the notches 11, 11, one end is connected to the power supply connection terminal part 12, and the other end is fixed by locking the tip of a spring 13 connected to the tip into the hole 14.

In this way, the entire integrated ionization section component is constructed by fitting the insulators 6 ₁ and 6 ₂ into the support frames 8 ₁ and 8 ₂ from above, and attaching the lower electrode 4 ₂ to the protrusion 16 integrally provided on the bottom plate of the main body case 1. , 16 with screws 17, 17, it is fixed to the main body case 1.
Note that 15 is a terminal bolt insertion hole.

The present invention is constructed as described above, and the counter electrode 4
The electrodes _{4 1} , 4 ₂ are press-fitted into the first notches ₁₀ , 10 of the insulators 6 ₁ , 6 ₂ .
4 ₂ and the insulators 6 ₁ and 6 ₂ can be integrated in advance and fixed to the main body case 1, which provides excellent fixing workability.
₁ , 4 ₂ is not closed, so that the insulator 6 ₁ ,
The order of fixing the counter electrodes 4 ₁ , 4 ₂ and the discharge wire 5 to the discharge wire ₅ can be more flexible, and the work efficiency can be improved.
Furthermore, since the second notches 11, 11 are closed by the support frames 8 ₁ , 8 ₂ of the main body case 1, even if the support position shifts due to loosening of the discharge wire 5, the insulators 6 ₁ , 6
This has great practical effects, such as never going beyond ₂ .

[Brief explanation of the drawing]

Figure 1 is a sectional view of the main parts of a conventional electrostatic precipitator.
Fig. 2 is a cutaway perspective view of the main part, Fig. 3 is an exploded perspective view of the main part of the embodiment of the present invention, Fig. 4 is a sectional view taken along the - line in Fig. 3, and Fig. 5 is a perspective view of the main part of the embodiment. It is a diagram. 4 ₁ , 4 ₂ ... counter electrode, 5 ... discharge wire, 6
_{1,6 2} ...Insulator, 10...First notch, 1
1...Second notch.

Claims (1)

[Scope of utility model registration request] An electric dust collector comprising a pair of opposing left and right insulator support frames protruding from side walls of a main body case, a pair of left and right synthetic resin insulators fitted into the support frames from above, a pair of upper and lower opposing electrodes whose ends are pressed into first notches formed in upper and lower ends of the insulators, and an ionization discharge wire inserted into a second notch formed in a center of the insulators so as to be open on a surface supported by the support frames.