KR100283977B1 - Lockable discharge prevention electrostatic precipitator - Google Patents

Abstract

The present invention can completely eliminate the generation of the arc after cleaning to induce a desirable discharge phenomenon and to prevent the fatal damage of the power supply device, and further facilitates the desorption of the electrostatic precipitating cells and at the same time between the left and right adjacent electrostatic precipitating cells Provided is an electrostatic precipitator that can ensure electrical contact. The electrostatic precipitator is adapted to corona discharge between a plurality of positive electrode plates 22 and a plurality of negative electrode plates 23 and 24 arranged alternately with each other and with a plurality of ionizing electrodes 30 and a corresponding number of forwardly extending negative plate 24. Ionized foreign matters from the contaminated air and the ionized foreign matters are collected in the plurality of positive electrode plates 22 and the negative electrode plates 23 and 24 coated with a rear adhesive, and then the purified air is discharged. An electrostatic precipitator having a cleaning device (8 to 10) for cleaning a foreign matter adhered to an ionization electrode (30), a plurality of negative electrode plates (23, 24) and a plurality of positive electrode plates (22) with a cleaning liquid; One front and one rear side of each of the positive electrode plate 22 and the negative electrode plates 23 and 24 are disposed so that the cleaning liquid to the adhesive liquid by the cleaning devices 8 to 10 do not flow to the adjacent lower side so as not to generate arcs. It is characterized in that the protruding downwards. In addition, one side of the lower end of each electrode is alternately protruded, and each electrode support is provided with screw transfer electrical contact and fixing means.

Description

Lockable discharge prevention electrostatic precipitator

The present invention relates to an electrostatic precipitator, and more particularly, to remove the generation of arc after cleaning, and to easily and compactly mount and detach the electrostatic precipitating cell, which is convenient and economical. It is about.

In general, an electrostatic precipitator is composed of a discharge electrode and a collecting electrode (counter electrode) to artificially supply voltage to a discharge electrode from a high voltage electrostatic source device, and to charge (ionize) particles by a corona discharge, Particles are collected by the electric force from the counter electrode having a polar polarity, and the discharge electrode is often used because of its high discharge efficiency, and a positive high voltage (about +12 kV) is applied to the wire electrode. By grounding the counter electrode, a corona discharge is generated between the wire electrode and the counter electrode, whereby foreign matter particles of the polluted air are charged (is ionized), and the ionized foreign matters are separately separated from the counter electrode or downstream. It is collected by the collecting electrodes arranged to be able to supply the purified air. Usually, in order to increase the dust collection efficiency, a cleaning device for automatically cleaning the dust collection electrode, a front end filter, and a scattering preventing end filter are used in the electrostatic precipitator.

However, the conventional electrostatic precipitator has a structure in which the electrostatic precipitating cell can be attached to and detached from the upper part of the electrostatic precipitating device. In addition, maintenance is inconvenient, and there is a problem that a lot of restrictions are caused in terms of place due to its large volume.

In addition, after cleaning the collecting electrode using water and water-soluble mucus, especially water or water-soluble mucus forms water droplets at the bottom of the electrode, causing arc discharge between adjacent electrostatic precipitating cells. There are problems such as deterioration or damage and deterioration of dust collection efficiency.

In addition, as shown in FIGS. 1 and 14, when a plurality of electrostatic precipitating cells 6 are installed in multiple stages from side to side, between the ionizing electrode support 28 and the positive electrode support 29 in the cell side frame 21. Although the arc-shaped true contact member 320 having elastic force for electrical contact is attached and press-fitted to ensure electrical contact through elastic deformation and to be detachable for repair, the design value is in a range for elastic deformation. If the manufacturing and assembly is limited, and plastic deformation occurs during the desorption of the electrostatic precipitating cell 6, there is a problem such that it is difficult to guarantee an electrical short circuit or electrical contact and must be reworked.

The present invention is to solve the above-described problems, it is possible to completely eliminate the generation of the arc after cleaning to induce a desirable discharge phenomenon and to prevent the fatal damage of the high-voltage electrostatic source device, furthermore, the desorption of the electrostatic precipitating cell An object of the present invention is to provide an electrostatic precipitator which can facilitate and at the same time ensure electrical contact between left and right adjacent electrostatic precipitating cells.

1 is a schematic plan view showing in cross-section the electrostatic precipitator according to the present invention.

2 is a front view of FIG.

3 is a side view of FIG.

4 is an enlarged front view of the electrostatic precipitating cells of FIG.

5 is a plan view of one electrostatic precipitating cell of FIG.

6 is a front view of FIG.

7 is a side view of FIG.

8 is an enlarged view of circle B of FIG.

9 is a top plan view of the removable rear filter.

10 is a front view of FIG. 9. FIG.

11 is a cross-sectional view taken along line 11-11 of FIG. 6 showing the shape of the electrodes.

FIG. 12 is an enlarged view of circle C in FIG. 6 specifically showing the configuration of the electrical contact device between the electrostatic precipitating cells.

13 is a cross-sectional view taken along line 13-13 of FIG.

FIG. 14 is a view similar to FIG. 13 showing a configuration of an electrical contact device between conventional electrostatic precipitating cells.

* Explanation of symbols for main parts of the drawings

1: upper frame 2: lower frame

3: side frame 4: vertical frame

5: shear filter 6: electrostatic precipitating cell

7: rear filter 7a: side frame

7b: mounting hole 8: cleaning liquid line

8 ': cleaning liquid nozzle 8a: drive motor

8b: guide and feeder 8c: feeder

9: adhesive liquid line 9 ': adhesive liquid nozzle

10: cleaning liquid and adhesive liquid supply line 11: filter casing

12: blower casing 21; Cell side frame

22: positive electrode plate 23, 24: negative electrode plate (counter electrode plate)

25: anode bar 26: cathode bar

27 ionization electrode bar 28 ionization electrode support

29: positive electrode support 30: ionization electrode

31: insulating block 32,320: electrical contact member

32 ': Transfer female thread part 32 ″: Electrical contact surface

32a: Feeding bolt 32b: Breakaway prevention and fixing nut

32c: Breakaway Spring

In order to achieve this object, the electrostatic precipitator according to the present invention is characterized by the fact that a plurality of positive electrode plates and a plurality of negative electrode plates are staggered from each other, and are separated from the contaminated air by a corona discharge between the plurality of ionizing electrodes and a corresponding number of forwardly extending negative electrode plates. After ionizing the foreign substances and collecting the ionized foreign substances in a plurality of anode plates and a plurality of cathode plates coated with a rear adhesive, the purified air is discharged and attached to the plurality of ionization electrodes, a plurality of cathode plates, and a plurality of anode plates. An electrostatic precipitator having a cleaning device for cleaning the foreign matter with a cleaning liquid; The front and rear sides of the bottom side of the positive electrode plate and the negative electrode plate are each projected downward so that the cleaning liquid to the adhesive liquid by the cleaning device do not flow to adjacent bottom sides so as not to generate arcs.

In addition, the present invention is characterized by ionizing foreign matters from polluted air by corona discharge between a plurality of positive electrode plates and a plurality of negative electrode plates intersected with each other and having a plurality of ionizing electrodes and a corresponding number of forwardly extending negative electrode plates. An electrostatic precipitator including a plurality of positive electrode plates, a negative electrode plate, and an ionization electrode arranged up, down, left, and right to collect dust from a plurality of positive electrode plates and a plurality of negative electrode plates, and to discharge purified air. The dust collecting cell includes: a pair of cell side frames provided on both sides of each electrostatic precipitating cell, and having a pair of upper and lower negative electrode bars fixed to be electrically connected to the plurality of negative electrode plates, and electrically connected to each other; By the ionization electrode bar and the upper and lower anode bars, which are contacted and supported with respect to the cell side frame via the electrically insulating block inside the cell side frame, and the plurality of ionization electrodes and the plurality of bipolar plates are electrically connected to each other. An ionization electrode support and a positive electrode support insulated from and fixed to the cell side frame; And screw transfer electrical contact and fixing means to achieve a relative fixed relationship with the electrical contact between the electrostatic precipitating cells by screw transfer to the ionization electrode support and the positive electrode support.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the embodiments of the present invention.

1 to 10 show one embodiment of the electrostatic precipitator according to the present invention.

In FIG. 1 to FIG. 3, the polluted air is introduced from the outside and the introduced polluted air passes through the shear filter 5 so that particles of large particle size are filtered out and the fine particles pass through the filter casing 11 according to the capacity. The dust is collected by passing through the plurality of electrostatic precipitating cells 6 arranged at the left and right, and the purified air is discharged through the blower casing 12 by passing through the rear filter 7. In the filter casing 11, the electrostatic precipitating cell 6 is disposed on the upper, lower, left and right sides via the upper frame 1, the lower frame 2 and the side frame 3. In addition, when arranging many electrostatic precipitating cells 6 to the left and right, the vertical frame 4 is provided in the middle.

The electrostatic precipitating cell 6 has a plurality of positive electrode plates 22 and a plurality of negative electrode plates 23, 24 alternately arranged with each other, as shown in FIGS. 5 to 8, and a plurality of ionization electrodes ( 30) is disposed and a corresponding number of negative electrode plates 24 extends forward to cause corona discharge therebetween, and ionized foreign matter is collected in the latter positive electrode plate 22 and the plurality of negative electrode plates 23 and 24. . The electrostatic precipitating cells 6 configured as described above are arranged in a plurality of vertically and horizontally according to their capacity. In addition, a plurality of rear stage filters 7 are disposed at the rear end of the electrostatic precipitating cell 6 so as to correspond to the electrostatic precipitating cell 6. Removably fixed between the pair of side frame (3) inside each to form a compact configuration. The rear filter 7 has side frames 7a on the left and right sides and mounting holes 7b on the left and right sides thereof, as shown in FIGS. It becomes easy to attach to (3) and the vertical frame (4).

In this way, the rear filter 7 and the front electrostatic precipitating cell 6 can be compactly formed between both side frames 3 so that the installation space can be reduced. Is compactly mounted in the cell side frame and the filter can be replaced from the front.

In the cleaning apparatuses 8 to 10, the cleaning liquid and the adhesive liquid supplied through the cleaning liquid supply pipe 8 and the adhesive liquid supply pipe 9 connected to the cleaning liquid and the adhesive liquid supply line 10 are sequentially washed liquid nozzles 8. And the electrodes of the electrostatic precipitating cell 6 are cleaned by spraying toward the electrostatic precipitating cell 6 through the '′ and the adhesive liquid nozzle 9 ′, and the guides driven by the driving motor 8a on one side from the front and The transfer device 8b, to which the cleaning liquid supply pipe 8 and the adhesive liquid supply pipe 9, to which the cleaning liquid supply pipe 8 is fixed, is transferred to the left and right to wash all the electrostatic precipitating cells 6, and the cleaning liquid scattered. Is flowed or dropped and is collected in the drain pan 10 'below, discharged to the outside, or recycled to be reused.

On the other hand, according to the embodiment of the present invention, as shown in Figure 11, the positive electrode plate so that the cleaning liquid to the adhesive liquid by the cleaning device (8 to 10) does not flow to the adjacent bottom portion does not generate arcs with each other The front and rear sides of the bottom sides of the 22 and the negative electrode plates 23 and 24 are formed so as to protrude downward. That is, in FIG. 11, the bases are inclined in opposite directions to cross each other so that the positive electrode plate 22 has the protrusion 22 'formed at the lower right side, and the negative plate 23, 24 has the protrusions 23' and 24 '. It is formed at the lower left side so that the protrusions 22 'and the protrusions 23' and 24 'adjacent to each other are formed farthest, so that water droplets formed by the washing apparatuses 8 to 10 are flowed from the bottom to be adjacent to each other. The distance between the electrodes is the longest to prevent the arc discharge. In addition, since the electric discharge is prevented, the corona discharge can be ensured by stabilizing the power supply, thereby preventing damage to the high voltage electrostatic source device, improving dust collection efficiency, and preventing electrode damage. It becomes possible.

Further, another embodiment of the present invention is shown in FIGS. 7, 12, and 13. As shown in FIGS. 7, 12 and 13, each electrostatic precipitating cell 6 has a pair of cell side frames 21, an ionizing electrode support 28 and a positive electrode support 29. Screw transfer electrical contact and fastening means 32, 32a, 32b, 32c are provided at their respective ionization electrode support 28 and positive electrode support 29.

The cell side frame 21 is provided on both sides of each electrostatic precipitating cell 6, and a pair of upper and lower negative electrode bars 26 to which a plurality of negative electrode plates 23 and 24 are electrically connected to each other is coupled. The cell side frame 21 can be electrically connected to the outside easily when a plurality of electrostatic precipitating cells 6 are arranged left and right.

The ionization electrode support 28 is contacted and supported in the cell side frame 21 with respect to the cell side frame 21 via an electrically insulating block 21 ', and a plurality of ionization electrodes 30 are respectively provided. The cell side frame 21 is insulated and fixed by an ionization electrode bar 27 which is fixed to be electrically connected. In addition, the positive electrode support 29 is also contacted and supported in the cell side frame 21 with respect to the cell side frame 21 via an electrically insulating block 21 ', and a plurality of positive electrode plates 22 are respectively provided. The cell side frame 21 is insulated and fixed by the upper and lower anode bars 25 fixed to be electrically connected.

The screw transfer electrical contact and fixing means 32, 32a, 32b, and 32c are in electrical contact between the electrostatic precipitating cells 6 laterally by screw transfer to the ionization electrode support 28 and the positive electrode support 29. It is configured to have a relative fixed relationship with.

12 and 13, the screw transfer electrical contact and fixing means 32, 32a, 32b, and 32c include an electrical contact member 32 having an electrical contact surface 32 " and a transfer female screw portion 32 '; The anti-separation and fixing nut 32b is rotatably fixed to the ionizing electrode support 28 to the positive electrode support 29 and faces the ionizing electrode support 28 to the positive electrode support 29 side thereof in FIG. Adjacent ionization electrodes by moving the electrical contact member 32 between the ionization electrode support 28 and the positive electrode support 29 side in a horizontal direction (up and down in FIG. 13) as shown by arrows in FIG. A transfer bolt 32a for binding or releasing between the support 28, 28 and the positive electrode support 29, 29, and the transfer bolt 32a is compressed so as not to rotate naturally in a binding state in an electrically connected state. An anti-separation spring 32c that exerts an elastic force It is configured to include.

Accordingly, by only rotating the transfer bolt 32a from the outside, it is possible to bind or release the adjacent left and right ionization electrode support 28 (28) to the positive electrode support (29) (29) to facilitate the removal of the mount. In spite of the frequent desorption for frequent maintenance and the like, the electrical contact can be ensured, and thus, in the case of the conventional electrical contact member 320 shown in FIG. 14, the difficulty of the desorption or the necessity of reworking due to plastic deformation is required. Removed.

According to the configuration and operation of the electrostatic precipitator according to the embodiments of the present invention described above, by installing the electrostatic precipitating cell and the rear filter compactly in the cell side frame, it is possible to reduce the installation hole and replace the filter in the front By alternately protruding one side of the lower end of each electrode, the generation of arc after cleaning is completely eliminated to induce a desirable discharge phenomenon, thereby preventing fatal damage of the high voltage electrostatic source device, and furthermore, screw transfer electrical contact and fixing means ( 32, 32a, 32b, 32c) facilitates the desorption of the electrostatic precipitating cells and ensures electrical contact between the left and right adjacent electrostatic precipitating cells, making it easy to install, repair, and economically collect efficiently. Has the effect of.

Claims (2)

Foreign materials from contaminated air by corona discharge between the plurality of positive electrode plates 22 and the plurality of negative electrode plates 23 and 24 are alternately arranged and between the plurality of ionizing electrodes 30 and the corresponding number of forwardly extending negative electrode plates 24. These ionized foreign matters are collected in the plurality of positive electrode plates 22 and the plurality of negative electrode plates 23 and 24 coated with a rear adhesive, and then, the purified air is discharged, and the plurality of ionized electrodes 30 are discharged. In the electrostatic precipitator having a cleaning device (8 to 10) for cleaning a plurality of negative electrode plates (23, 24) and foreign substances attached to the plurality of positive electrode plates (22) with a cleaning liquid: the cleaning device (8 to 10) Characterized in that the front and rear of the bottom side of the positive electrode plate 22 and the negative electrode plates (23, 24) are projected out of each other so that the cleaning liquid to the adhesive liquid does not flow to the adjacent bottom side so as not to generate arcs. Electricity Binary unit. Foreign materials from contaminated air by corona discharge between the plurality of positive electrode plates 22 and the plurality of negative electrode plates 23 and 24 are alternately arranged and between the plurality of ionizing electrodes 30 and the corresponding number of forwardly extending negative electrode plates 24. And ionized foreign matters are collected in the plurality of positive electrode plates 22 and the negative electrode plates 23 and 24, and then the plurality of positive electrode plates 22 and the negative electrode plates 23 and 24 and ionized to discharge the purified air. In the electrostatic precipitator in which a plurality of electrostatic precipitating cells 6 composed of electrodes 30 are arranged up, down, left and right, the electrostatic precipitating cells 6 are provided on both sides of each electrostatic precipitating cell 6, A pair of cell side frames 21 coupled to the upper and lower negative electrode bars 26 to which the plurality of negative electrode plates 23 and 24 are electrically connected to each other and may be electrically connected to each other; The cell side frame 21 is contacted and supported with respect to the cell side frame 21 via an electrically insulating block 21 ', and a plurality of ionization electrodes 30 and a plurality of positive electrode plates 22 are respectively provided. An ionization electrode support 28 and a positive electrode support 29 that are insulated from and fixed to the cell side frame 21 by an ionization electrode bar 27 and an upper and lower anode bars 25 fixed to be electrically connected; The screw transfer electrical contact and the fixing means 32 form a relative fixed relationship with the electrical contact between the electrostatic precipitating cells 6 by screw transfer to the ionization electrode support 28 and the positive electrode support 29. Electrostatic precipitator characterized in that it comprises a 32a, 32b, 32c.