KR102656693B1 - Support structure for electrode replacement and electrode replacement method of Electric Dust Collector using the same - Google Patents

Abstract

The present invention relates to a method of replacing electrodes in an electrostatic precipitator in which the entire unit electrode can be placed in the casing inside the dust collector using a U-shaped temporary hanger.

Description

Temporary hanger for replacing electrodes of electric dust collector and method of replacing electrodes of electric dust collector using the same {Support structure for electrode replacement and electrode replacement method of Electric Dust Collector using the same}

The present invention is a temporary hanger for replacing electrodes of an electrostatic precipitator and a method of replacing electrodes in an electrostatic precipitator using the same. More specifically, a temporary hanger that can hold the entire unit electrode by entering it into the casing inside the dust collector and an electrostatic precipitator using the same. This is about how to replace electrodes.

Generally, the combustion gas of industrial boilers such as thermal power plants contains a lot of dust, and an electric precipitator is a device that removes this dust contained in the exhaust gas. In other words, an electrostatic precipitator is a device that applies an electric field to the dust floating in combustion gas, making it electrically charged, and collecting the dust particles with electrostatic force to clean the exhaust gas.

The electrostatic precipitator as described above is composed of a discharge electrode that generates a corona discharge, a dust collection electrode (or dust collection plate) that collects dust anionized by the negative charge emitted from the discharge electrode, and a driving device that removes the dust collected in the dust collection electrode. there is. For example, the dust collection pole is installed in a row of 7 dust collection plates with a length of 14 m and a width of 0.6 m, and the upper part of the dust collection plates is installed in a suspended form.

Figure 1 is a side view of an electrostatic precipitator. On one side, an intake portion (1) is connected to an exhaust pipe to suck in exhaust gas, and on the other side, an discharge portion (2) is connected to an exhaust pipe to discharge purified air. there is. Inside the electrostatic precipitator, a plurality of dust collection electrodes 3 as shown in FIG. 2 are installed at intervals back and forth, and a discharge electrode (not shown) is installed between each dust collection electrode 3. Support frames 4 extending left and right are provided on the upper and lower sides of the dust collection electrode.

If such an electrostatic precipitator is used for a long period of time, the dust collection electrode 3 and the discharge electrode become contaminated and deteriorated by dust, so they must be replaced periodically. Referring to FIG. 3, in order to replace the deteriorated dust collection electrode and discharge electrode of the electrostatic precipitator, the deteriorated dust collection electrode and discharge electrode are pulled out through the cut part 300 where the upper cover of the electrostatic precipitator is removed, and then a new dust collection electrode and discharge electrode are installed. It must be replaced by inserting it into the electrostatic precipitator.

In this replacement method, it is not easy to transport the dust collection electrode (3) and discharge electrode to the exact location where they should be installed, and the dust collection electrode (3) and discharge electrode hanging from the crane must be manually rotated by the worker to be seated in a fixed position, making replacement work difficult. Not only is this difficult to do, it takes a lot of time and money, but it is also uneconomical due to the risk of safety accidents.

In addition, referring to Figure 3, in this replacement method, the width (L) of the dust collection electrodes (3) is larger than the spacing (S) of the casing (310) located within the incision, so the last few dust collection electrodes do not have enough space to enter the dust collector. Therefore, entry is impossible even if tilted at an angle. Therefore, the dust collection plates have to be lifted individually and the dust collection poles 3 have to be assembled inside the dust collector, which causes problems in construction time delay and ensuring the safety of workers.

The present invention provides a temporary hanger that can quickly and safely replace the dust collection electrode and discharge electrode.

The present invention relates to a method of replacing electrodes in an electrostatic precipitator that can mount and fix unit electrodes by efficiently utilizing the casing space inside the dust collector.

The present invention relates to an electrode replacement method for an electrostatic precipitator that can quickly and safely replace the dust collection electrode and discharge electrode.

In one aspect, the present invention:

Body made of metal (31),

A U-shaped depression 32 formed by depression of the body and inserted into the casing 310 inside the electrostatic precipitator 1,

One or more holes 33 formed on one side of the body; and

A temporary hanger (30) having a bolt (34) inserted through the hole (33) and the support frame (22) at the top of the dust collection pole (20),

A discharge electrode (10) is assembled on the upper surface of the dust collection electrode (20),

The temporary hanger 30 is fastened to the upper left and right sides of the support frame 22 of the dust collection pole 20 with the bolts, respectively,

The temporary hanger 30 is related to a temporary hanger for replacing electrodes of an electric dust collector, characterized in that the dust collection electrode is suspended and mounted on the casing 310 using the depression 32.

In another aspect, the present invention

(1) a unit electrode 100 assembly step of manufacturing the discharge electrode 10 and the dust collection electrode 20 and fastening the discharge electrode 10 to the dust collection electrode 20;

(2) fastening temporary hangers (30) to the upper left and right sides of the dust collection pole (20);

(3) inserting the unit electrode to which the temporary hanger 30 is fastened through the upper cutout 300 of the electrostatic precipitator 1 using a crane;

(4) inserting the temporary hanger 30 into the casing 310 structure within the cutout 300 to suspend the unit electrode;

(5) moving the unit electrode mounted on the casing 310 to a predetermined position;

(6) Electricity using a temporary hanger, including the step of removing the temporary hanger 30 from the unit electrode 100 at a predetermined position and fixing the unit electrode to the casing 310 structure using a fixing means. It is related to the method of replacing the electrode of the dust collector.

The electrode replacement method of the present invention is to push a plurality of unit electrodes to one side (A) of the casing and then place them on a temporary hanger (30), thereby creating a space (B) on the other side of the casing into which all of the remaining unit electrodes required for work can enter. can be secured. Therefore, in the electrode replacement method of the present invention, there is no need to individually lift the dust collection plate and assemble the unit electrode including the dust collection electrode 20 inside the dust collector (as in the conventional method), thereby solving construction delays and worker safety problems. there is.

The present invention allows all of the unit electrodes to be mounted on the casing inside the dust collector using a “C” temporary hanger fastened to the top of the dust collector, and only a crane is used for the transfer operation of moving the unit electrodes to a predetermined position along the casing. Compared to , the work is easy and safe.

1 is a side view of an industrial electrostatic precipitator.
Figure 2 is a front view of a conventional dust collection plate.
Figure 3 is a diagram showing a conventional electrode replacement method.
Figure 4 is a conceptual diagram of transferring and installing a unit electrode to an electrostatic precipitator.
Figure 5 is a perspective view of a temporary hanger 30 fastened to the unit electrode 100 (one set of assembled electrodes and discharge electrodes) of the present invention.
Figure 6 is an assembly diagram of Figure 5.
Figure 7 is a diagram showing the unit electrode being introduced through a cutout at the top of the electrostatic precipitator.
FIG. 8A is a diagram showing that the unit electrode mounted on the casing is pushed to one side to allow the last unit electrode to enter through the incision space, and FIG. 8B is a diagram showing the unit electrode being moved to a predetermined position and then fixed with a U bolt. .
Figure 9a shows a unit electrode mounted on a casing using a temporary hanger, and Figure 9b shows a unit electrode fixed to the casing using a permanent hanger.
FIG. 10 is an enlarged conceptual diagram of FIG. 9A.
Figure 11 is an enlarged conceptual diagram of Figure 8b.

Below, preferred embodiments of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the description or drawings of the following embodiments. That is, the terms used in this specification are merely used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "comprise" or "have" used in the specification are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are intended to indicate the presence of one or more of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. It should be understood that this does not exclude in advance the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, terms such as “unit,” “unit,” and “module” used in the specification refer to a unit that processes at least one function or operation, and may be implemented as hardware, software, or a combination of hardware and software.

Figure 4 is a conceptual diagram of transporting and installing a unit electrode to an electric precipitator, and Figure 5 is a perspective view of a temporary hanger 30 fastened to the unit electrode 100 (1 set of assembled dust collection electrode and discharge electrode) of the present invention. 6 is an assembly diagram of FIG. 5, FIG. 7 is a conceptual diagram of inserting a unit electrode through a cutout at the top of an electrostatic precipitator, and FIG. 8a shows a unit electrode mounted on the casing being pushed to one side so that the last unit electrode is inserted through the cutout space. It is a plan view showing entry, Figure 8b is a plan view of the unit electrode being moved to a predetermined position and fixed with a U bolt, Figure 9a is a unit electrode mounted on the casing with a temporary hanger, and Figure 9b is a unit electrode with a permanent hanger. is fixed to the casing, FIG. 10 is an enlarged conceptual diagram of FIG. 9A, and FIG. 11 is an enlarged conceptual diagram of FIG. 8B.

Referring to Figures 4 to 11, the electrode replacement method of the electrostatic precipitator of the present invention includes (1) unit electrode assembly step, (2) temporary hanger installation step, (3) lead-in step, (4) mounting step, (5) It may include a moving stage and (6) a stationary stage.

Here, for convenience, the unit electrode is a term representing an electrode in which one discharge electrode and one dust collection electrode are assembled together.

The electrode replacement method of the electrostatic precipitator of the present invention can sequentially proceed with (1) the unit electrode assembly step and (2) the temporary hanger installation step, and (2) first assemble the temporary hanger to the dust collection electrode and then install the discharge electrode. can be combined with a dust collection electrode.

(1) The unit electrode assembly step is a step of manufacturing the dust collection electrode 20 and the discharge electrode 10 and combining the discharge electrode 10 on the dust collection electrode 20.

As the discharge electrode 10 and the dust collection electrode 20, known discharge electrodes and dust collection electrodes may be used without limitation.

Referring to Figures 5 and 6, the discharge electrode 10 may include a frame 11 made of metal rods and a plurality of wires 12 fixed to the frame.

The dust collection electrode 20 may include a dust collection plate 21 having a concavo-convex structure and a pair of support frames 22 that are respectively fixed to the upper front and rear sides of the dust collection plate 21 in the horizontal direction.

The dust collection plate 21 can be assembled by connecting a plurality of uneven plates or uneven frames in parallel or connected to the lower side.

The support frame 22 may be a plate-shaped panel fixed to the upper side of the dust collection plate 21 in the horizontal direction.

The support frame 22 is positioned to correspond to the upper and lower surfaces of the dust collection plate 21 and can be assembled with the dust collection plate.

The support frame 22 may also be installed on the lower side of the dust collection plate.

Referring to Figures 5 and 6, the discharge electrode 10 can be assembled to the upper surface of the dust collection electrode 20 using a fixing means such as a wire or bolt.

The (2) temporary hanger installation step is a step of fastening temporary hangers (30) to the upper left and right sides of the dust collection electrode (20). More specifically, the temporary hanger 30 may be assembled on both sides of the support frame 22.

Referring to FIGS. 5 to 10, the temporary hanger 30 may include a body 31 and a U-shaped depression 32 formed in the body.

The temporary hanger 30 may be made of a metal material such as stainless steel or alloy.

The depression 32 is U-shaped with a groove formed on the inside, and the plate-shaped casing 310 can be inserted into the U-shaped inner groove and caught. There is no particular limitation on the horizontal (l) and vertical (m) sizes of the depression 32.

Referring to FIGS. 5 to 10, the temporary hanger 30 includes a hole 33 formed on one side of the body, a support frame 22 of the dust collection pole, and a bolt 34 inserted through the hole 33. ) may include.

The hole 33 may be one or more.

The temporary hanger 30 can be fastened to the support frame using the bolt 34.

The temporary hanger 30 can rotate the bolt 34 around a fixed axis.

The (3) entry step is a step in which the unit electrode to which the temporary hanger 30 is fastened enters the interior of the electrostatic precipitator 1 through the upper cutout 300 of the electrostatic precipitator 1 using a crane.

Referring to FIGS. 3 and 7 to 9, the cutout portion 300 is a space formed by cutting a portion of the upper roof panel 320, and a casing 310 capable of holding the unit electrode is provided inside the cutout portion 300. Located. The casing 310 may be a metal beam structure.

Referring to FIG. 3, the gap (S) between the casings 310 is smaller than the length (L) of the unit electrode or the dust collection electrode, and in the drawing step, the unit electrode is lifted using a crane. , it is possible to enter the inside of the incision 300 by tilting it obliquely.

The mounting step (4) may be a step of hanging and mounting the unit electrode by inserting the temporary hanger 30 into the casing 310 structure within the cut portion 300.

More specifically, the mounting step (4) includes inserting the recessed portion 32 of the temporary hanger 30 into the plate-shaped casing 310 structure and removing the wire of the lifter from the unit electrode. It can be included.

In the mounting step, the temporary hanger 30 can be rotated around the bolt 34 to insert the recessed portion 32 into the casing.

Additionally, in the mounting step, the temporary hanger assembled to the unit electrode may be released, the recessed portion of the temporary hanger may be inserted into the casing, and the temporary hanger and the unit electrode may be reassembled with bolts.

In the mounting step, the wire of the lifter is removed from the unit electrode, so that the unit electrode can be mounted on the casing using only a temporary hanger. Referring to FIG. 10b, by removing the force of the crane, the unit electrode 100 receives downward force due to its weight, and at this time, the temporary hanger rotates at a predetermined angle about the bolt 34 as the axis. The lower and upper surfaces of the casing are caught on the upper and lower surfaces of the depression, and therefore, the unit electrode can be mounted on the casing with the temporary hook even if the lifter wire is removed.

Referring to FIG. 8A, in the mounting step (4), a plurality of unit electrodes 100 can be sequentially entered into the incision 300 and mounted on the casing 310. In the mounting step, the entire amount of unit electrodes required for the work are pushed to one side (A) of the casing and then placed on the temporary hanger (30), and a space (B) into which the unit electrodes can enter is created on the other side of the casing. This can be secured.

The (5) moving step is a step of moving the unit electrode mounted on the casing 310 to a predetermined position. In the moving step, the unit electrode can be moved using a crane, or an operator can push the unit electrode to move it.

The fixing step (6) is a step of removing the temporary hanger 30 from the unit electrode 100 at a predetermined position and fixing the unit electrode to the casing 310 structure using fixing means 40. .

More specifically, the fixing step (6) includes connecting the wire of the crane to the unit electrode 100, raising the unit electrode to a predetermined height with the crane, and then removing the bolt 34 to form the temporary It includes removing the hanger 30 from the unit electrode 100 and coupling the unit electrode to the casing 310 using a fixing means.

The fixing step is a step of removing the temporary hanger from the unit electrode and then fixing the unit electrode to the casing using a fixing means.

There is no particular limitation to the fixing means 40, but preferably the fixing means may be a U bolt or nut.

Referring to FIGS. 8B, 9B, and 11, in the fixing step, the unit electrode can be fixed to the casing by tightening nuts on the U bolts that penetrate both sides of the support frame 22 and the casing.

As described above, the electrode replacement method of the present invention uses the U-shaped temporary hanger 30 to allow all unit electrodes to enter and be mounted on the casing inside the dust collector, thereby solving construction delays and worker safety issues.

In another aspect, the present invention relates to a temporary hanger (30) for replacing electrodes of an electrostatic precipitator.

The temporary hanger 30 includes a body 31 made of metal, a U-shaped depression 32 formed by depression of the body and inserted into the casing 310 inside the electrostatic precipitator 1, and a depression 32 on one side of the body. One or more holes 33 formed; and a bolt 34 inserted through the hole 33 and the support frame 22 at the top of the dust collection electrode 20.

Regarding the temporary hanger, the above-described information can be referred to.

For example, the temporary hanger 30 may be fastened to the upper left and right sides of the support frame 22 of the dust collection electrode 20 with the bolts, respectively.

The temporary hanger 30 can be used to hang the dust collection electrode on the casing 310 using the depression 32.

The temporary hanger 30 can rotate the bolt 34 around a fixed axis.

Although the present invention has been described in detail above as an example of a preferred embodiment of the present invention, this description simply describes and discloses an exemplary embodiment of the present invention. Those skilled in the art will readily recognize that various changes, modifications and variations can be made from the above description and accompanying drawings without departing from the scope and gist of the present invention.

Claims (7)

Body made of metal (31),
A U-shaped depression 32 formed by depression of the body and inserted into the casing 310 inside the electrostatic precipitator 1,
One or more holes 33 formed on one side of the body; and
A temporary hanger (30) having a bolt (34) inserted through the hole (33) and the support frame (22) at the top of the dust collection pole (20),
A discharge electrode (10) is assembled on the upper surface of the dust collection electrode (20),
The temporary hanger 30 is fastened to the upper left and right sides of the support frame 22 of the dust collection pole 20 with the bolts, respectively,
The temporary hanger (30) is a temporary hanger for replacing electrodes of an electric dust collector, characterized in that the dust collection electrode is suspended and mounted on the casing (310) using the depression (32). The temporary hanger for replacing electrodes of an electrostatic precipitator according to claim 1, wherein the temporary hanger (30) is capable of rotating the bolt (34) about a fixed axis. (1) a unit electrode 100 assembly step of manufacturing the discharge electrode 10 and the dust collection electrode 20 and fastening the discharge electrode 10 to the dust collection electrode 20;
(2) fastening temporary hangers (30) to the upper left and right sides of the dust collection pole (20);
(3) inserting the unit electrode to which the temporary hanger 30 is fastened through the upper cutout 300 of the electrostatic precipitator 1 using a crane;
(4) inserting the temporary hanger 30 into the casing 310 structure within the cutout 300 to suspend the unit electrode;
(5) moving the unit electrode mounted on the casing 310 to a predetermined position;
(6) A temporary hanger comprising the step of removing the temporary hanger 30 from the unit electrode 100 at a predetermined position and fixing the unit electrode to the casing 310 structure using a fixing means 40. How to replace electrodes in an electrostatic precipitator using . The method of claim 3, wherein the discharge electrode (10) is
It includes a frame (11) made of metal rods and a plurality of wires (12) fixed to the frame,
The dust collection pole (20) is a temporary hanger characterized by having a dust collection plate (21) with a concave-convex structure and a pair of support frames (22) fixed in the horizontal direction to the upper sides of the front and rear surfaces of the dust collection plate (21), respectively. How to replace the electrodes of the electrostatic precipitator used. The method of claim 4, wherein the temporary hanger (30) includes a body (31), a U-shaped depression (32) formed in the body and into which a plate-shaped casing is inserted, a hole (33) formed on one side of the body, and the It is provided with a bolt (34) inserted through the support frame (22) of the dust collection electrode,
A method of replacing electrodes in an electrostatic precipitator using a temporary hanger, characterized in that the temporary hanger (30) can rotate the bolt (34) on a fixed axis. The method of claim 5, wherein the step (4) of hanging and mounting the unit electrode is
The electrode of the electrostatic precipitator using a temporary hanger is characterized in that the step of inserting the recessed portion 31 of the temporary hanger 30 into the plate-shaped casing 310 structure and removing the crane wire from the unit electrode. How to replace. The method of claim 5, wherein the fixing step (6) is
Connecting the wire of the crane to the unit electrode 100;
After lifting the unit electrode to a predetermined height with the crane, removing the temporary hanger 30 from the unit electrode 100 by removing the bolt 34;
A method of replacing electrodes in an electrostatic precipitator using a temporary hanger, comprising the step of coupling the unit electrode to the casing 310 using a fixing means.