KR20230075783A - A maintenance device for CCR - Google Patents

Abstract

The present invention proposes a maintenance device used inside a continuous catalyst regenerator. According to the present invention, a central pipe 10 is erected at the center of the continuous catalytic regenerator shell, and is made by connecting a plurality of pipes in a straight line. In addition, the support unit 20 includes a plurality of support pipes 28 supported on the basis of the center pipe 10 and arranged radially, a scaffold 22 disposed on the support pipe 28, and a scaffold 22 ) and includes a cover 24 that forms a part and rotates upward to open a part of the scaffold 22 to form a space through which workers can pass. Here, the ladder 30 is arranged vertically while being supported by the central pipe 10, and the cover 24 is configured so that a worker can move up and down through the open space.

Description

Maintenance device for continuous catalyst regenerator {A maintenance device for CCR}

The present invention relates to a maintenance device for a continuous catalyst regenerator, and more particularly, to a maintenance device for a continuous catalyst regenerator configured so that a user can safely stand on it for cleaning and maintenance of a screen installed inside a shell for a continuous catalyst regenerator. It's about the device.

A screen is installed inside the continuous catalyst regenerator to maintain the flow of the catalyst, and it is common to check this screen regularly because it becomes contaminated during the regeneration reaction. Inspection, maintenance, and partial repair of such screens must be carried out only when the operator enters the shell.

For work related to such a screen, in the conventional method of entering the inside of a regenerator shell having a considerable height, it is common for an operator to descend to a predetermined height using a rope ladder. However, there is a problem in that the safety of workers is substantially threatened by entering the inside of the continuous catalyst shell using a plurality of rope ladders.

When a worker performs work inside such a continuous catalyst regenerator, in order to secure the safety of the worker, the worker's fall prevention must be secured by default, and a safe scaffolding structure must be secured so that the worker can work safely.

To this end, an object of the present invention is to provide a maintenance device installed inside a shell having a considerable height, for example, a shell for a continuous catalyst regenerator, so that an operator can work safely. Here, being able to work safely means that a fall of the worker can be prevented reliably and a foothold on which the worker can safely stand can be provided.

Another object of the present invention is to provide a shell repair device capable of ensuring safety and increasing work efficiency by designing a worker to safely stand at a desired interval in the vertical direction.

According to the maintenance device for the continuous catalyst regenerator of the present invention, a center pipe is built in the center of the shell of the continuous catalyst regenerator, which is made by connecting a plurality of pipes in a straight line. In addition, a plurality of support units are installed in multiple stages on the central pipe. These support units are arranged radially and form a part of a plurality of support pipes, a scaffold disposed on the support pipe, and a scaffold, and rotate upward to form a part of the scaffold. It includes a cover that opens a part to form a space through which a worker can pass. Ladder for the worker to move up and down is supported on the central pipe and arranged vertically together, and is supported so that the worker can move up and down through the open space of the cover.

According to another embodiment of the present invention, the support pipe is supported by a central support cylinder fixed to the central pipe, and further includes a plate-shaped auxiliary support piece vertically arranged to be fixed to the central support cylinder and the support pipe together.

According to another embodiment of the present invention, it is configured to further include an extension support pipe connected to the outside of the support pipe, and an extension scaffold disposed on the outside of the scaffold on the extension support pipe. Here, the expansion support pipe is installed to be folded upward from the support pipe, and the expansion scaffold is installed to be folded in an arc direction with respect to the expansion support pipe.

According to the present invention having the configuration as described above, when performing the necessary work on the screen inside the continuous catalyst regenerator, the operator can safely maintain the position using the footrests installed on the plurality of support units, as well as the operator's It can be seen that the fall can be completely prevented. In addition, the advantage that can be sufficiently applied to the shell having a large diameter extended through the configuration of the expandable scaffolding and support pipe is also expected. It is expected that it will be fully understood that the maintenance device of the present invention as described above substantially secures the safety of workers sufficiently, as well as improves work efficiency through such a safe working environment.

1 is an explanatory view showing an apparatus of the present invention installed inside a shell;
Figure 2 is an exemplary perspective view showing the entire device of the present invention
Figure 3 is an exemplary perspective view of the support unit of the device of the present invention.
Figure 4 is an exemplary perspective view showing a top fixing member of the device of the present invention.
Figure 5 is an exemplary perspective view showing a lower fixing member of the device of the present invention.
Fig. 6 is an overall exemplary perspective view of a device having an extension part of the present invention;
7 is a perspective view illustrating an extension part of the present invention;
Figure 8 is an exemplary view showing the opening and closing of the expansion part of the device of the present invention.

Next, the present invention will be described in more detail based on the embodiments shown in the drawings.

As shown in FIG. 1, the maintenance device of the present invention gradually, repairs or partially replaces the out-grid screen 4 (hereinafter simply referred to as a screen) installed inside the shell 2 of the continuous catalyst regenerator. It is to do. After the apparatus of the present invention is made with a configuration as described below, it is put inside the regenerator shell 2 and used to perform a desired operation.

The maintenance device of the present invention as described above includes a central pipe 10 supported at the central portion along the longitudinal direction of the shell 2, and a plurality of support units 20 installed in multiple stages on the central pipe 10. . In this way, by installing a plurality of support units 20 at a certain height, it will be possible to repair the screens 4 of all heights inside the shell 2.

In addition, the center pipe 10 is installed throughout the center of the shell 2 in the longitudinal direction. It is preferable to configure a plurality of these center pipes 10 by connecting them in a straight line. For example, radial flanges are formed at both ends of a pipe having a certain length, and they are connected with bolts and nuts to form the shell 2. It may have a length corresponding to the overall height.

2 shows the maintenance device of the present invention excluding the shell 2. As shown, a plurality of support units 20 are installed on the central pipe 10 at regular intervals (for example, 2 meters). As can be seen with reference to FIG. 3, the support unit 20 of the present invention forms a scaffold 22 on which workers performing maintenance can safely stand, and a part of such scaffold 22 At the same time, it is provided with a cover 24 that opens upward.

The scaffold 22 may be fixed to the central pipe 10 extending radially, for example, by a cross-shaped support pipe 28 extending radially from the center support cylinder 26 fixed to the central pipe 10. is being supported This support pipe 28 may be composed of, for example, a square pipe, and may be composed of four or more as shown. The cover 24 is rotatably supported so as to open upwardly with respect to any one of the support pipes 28, and when closed downward, for example, it is caught on another part of the scaffold 22 and remains level as a worker's scaffold. used

In addition, the central support tube 26 is fixed (welding, bolting, etc.) to the central pipe 10, and the support pipe 28 is fixed (eg, welded) to the central support tube 26, so that the scaffold 22 is determined. Can be supported at height. As shown in (b) of FIG. 3, the central support cylinder 26 has a certain height, and radially extending support pipes 28 (for example, square pipes) are arranged in a cross shape. In addition, a plate-shaped auxiliary support piece 28a is fixed to the central support cylinder 26 in a vertical state at the lower part of the support pipe 28.

It can be seen that the auxiliary support piece 28a is designed to decrease in height toward the outside. Therefore, it is thought that the load applied to the scaffold 22 can be safely supported while being distributed throughout the central support cylinder 28 by the cross-shaped support pipe 28 and the auxiliary support piece 28a in contact with the scaffold 22 do. And it is preferable that the above-described scaffold 22 and cover 24 have a circular shape as a whole. It can be said that this is based on the configuration of the shell 2 having a substantially cylindrical shape.

A handrail 25 is installed above the scaffold 22 or above the support pipe 28 to protect the operator. The handrail 25 is to support the operator not to leave the scaffold 22, and is composed of a plurality of rings spanning up and down and a plurality of vertical members supporting these rings. These vertical members are supported vertically on the scaffold 22 or supported upright on the support pipe 28 as shown in FIG. The handrail 25 may be said to prevent the departure of the operator actually standing on the scaffold 22 .

And as shown in FIG. 2, the ladder 30 is installed over the entire height of the top and bottom like the central pipe 10. The ladder 30 is preferably supported in a fixed state to the central pipe 10, but cannot be limited to this configuration. Also, like the central pipe 10, the ladder 30 may be formed as a whole by connecting a plurality of ladder units vertically.

This ladder 30 is used when a worker moves up and down. The ladder 20 for upward and downward movement of the operator is installed adjacent to the cover 24, and the operator can move up and down using the ladder 20 through the open portion of the cover 24. And, as shown in FIG. 2, the upper end fixing member 32 is installed at the upper end of the center pipe 10, and the lower end fixing member 34 is installed at the lower end of the center pipe 10.

The upper fixing member 32 and the lower fixing member 34 are exemplary configured so that the center pipe 10 can be supported at the center in the vertical direction. As shown in FIG. 4, the upper fixing member 32, It consists of an upper fixed cylindrical body 32a inserted into and fixed to the center pipe 10, and a plurality of (three) arm members 32b radially extending from the upper fixed cylindrical body 32a.

The upper fixed cylindrical body 32a is inserted into the upper end of the central pipe 10 to maintain a fixed state. For example, as shown, the upper fixed cylindrical body 32a is divided into two parts, each formed at its end. It can be fixed to the center pipe 10 by tightening the flange 32f with bolts and nuts. Since the outer end of the arm member 32b in this fixed state is fixed to the outer surface of the neck of the upper end of the shell 2, the upper end of the center pipe 10 can be substantially firmly maintained in the center.

And, as shown in FIG. 5, the lower fixing member 34 extends radially from the lower fixed cylindrical body 34a inserted into and fixed to the center pipe 10 and the lower end of the lower fixed cylindrical body 34a. It includes a circular plate 34b, an upright plate-shaped auxiliary support plate 34d fixed between the circular plate 34b and the ring-shaped flange 34a fixed to the lower fixed cylindrical body 34a. As the circular plate 34b is supported on the inner surface of the lower end of the shell 2, the lower fixed cylindrical body 34a is supported by the center pipe 10, and the structural strength is increased by the flange 34c and the auxiliary support plate 34d. will be reinforced

After the maintenance device of the present invention having the above configuration is completed, the state in which the shell 2 is entered is shown in FIG. 1 . In this state, the operator can go down the ladder 30 using the open part of the upper end of the shell 2. It is as described above that going down or up using the ladder 30 in this way can be done in a state in which the cover 24 installed on each scaffold 22 is opened upward.

Accordingly, the operator can reach the support unit 20 at a desired height by using the ladder 30 and the cover 24 . As such, it is natural that a worker who has reached the desired height will be able to perform the desired task. Since the maintenance device according to the present invention has a length corresponding to the height of the shell 2, a frame should be used when inserting or taking it out of the shell 2.

Next, another embodiment of the present invention will be looked at. In this embodiment, the footrest can be further extended outward, which means that the working space can be further expanded outward. And, in other embodiments below, detailed descriptions of the same parts as described above will be omitted.

As shown in FIG. 6, a ring-shaped extension 52 is installed outside the above-described scaffold 22 and cover 24. The scaffold 22 and cover 24 of the above embodiment are molded in a circular shape as a whole, and the extended scaffold 52 is installed to have a plate-shaped ring shape on the outside thereof. The extension scaffold 52 is supported by being placed on the extension support pipe 54 .

Referring also to FIG. 7 , the expansion support pipe 54 is configured to be folded upward with respect to the support pipe 28 . In addition, the expansion support pipe 54 cannot rotate downward any further in a horizontally unfolded state, for example, due to interference with the support pipe 28 or interference with other members, and this configuration is practically widely used Since this structure is used, a detailed description thereof will be omitted.

At the same time as the expansion support pipe 54 is configured to be folded while rotating upward, the expansion footrest 52 is also hinged so as to be folded upward with respect to the expansion support pipe 54 . The expansion scaffold 52 is folded upwardly with the expansion support pipe 54 as an axis, and this direction may be referred to as a circular arc direction centered on the radius.

And, if necessary, it is preferable to configure the extension scaffold 52 itself to be folded in half. That is, just as the first extension scaffold 52a can be folded in the circular arc direction with respect to the extension support pipe 54, the second extension scaffold 52b can also be folded in the same arc direction with respect to the first extension scaffold 52a. can be configured so that In this way, if the extended scaffold 52 itself can be double folded, it is thought that the extended scaffold 52 in a folded state will be more compact.

8 exemplarily shows the process of folding the expansion scaffold 52 and the expansion support pipe 54 in an unfolded state, in the state of (a), the expansion scaffold 52 and the expansion support pipe 54 are completely unfolded. It is a state. In this state, the person can perform the desired work inside the shell 2, and it can be seen that a wider foothold can be secured compared to the first embodiment described above. And when the work is completed, it can be seen that the expansion scaffold 52 and the expansion support pipe 54 can be completely folded through the process from (b) to (d).

Within the scope of the basic technical idea of the present invention as described above, it is thought that various other modifications are possible to those skilled in the art. And it is considered natural that the scope of protection of the present invention at the time of registration should be interpreted based on the matters described in the claims, given the purpose of the provisions of the Patent Act.

10 ..... Center pipe
20 ..... Support unit
22 ..... scaffolding
24 ..... cover
26 ..... Central pain
28 ..... Support pipe
28a ..... Auxiliary support piece
30 ..... Ladder
32 ..... upper fixing member
32a ..... Rigid Tubular Body
32b ..... arm member
34 ..... Lower fixing member
34a ..... lower fixed cylindrical body
52 ..... Extended platform
54 ..... Expansion support pipe

Claims (3)

a central pipe 10 built in the center of the shell of the continuous catalyst regenerator and made by connecting a plurality of pipes in a straight line;
A plurality of support pipes 28 supported on the basis of the center pipe 10 and arranged radially, a scaffold 22 disposed on the support pipe 28, and a scaffold 22 forming a part and upwardly A support unit 20 including a cover 24 that rotates to open a part of the scaffold 22 to form a space through which a worker can pass; and
A maintenance device for a continuous catalyst regenerator composed of a ladder (30) supported by a central pipe (10) and arranged vertically and supported so that a worker can move up and down through a space in which a cover (24) is open.
According to claim 1,
The support pipe 28 is supported by the center support cylinder 26 fixed to the center pipe 10, and the plate-shaped auxiliary support piece 28a vertically arranged so as to be fixed to the center support cylinder 26 and the support pipe 28 together. A maintenance device for a continuous catalyst regenerator further comprising:
According to claim 1,
It is configured to further include an extended support pipe 54 connected to the outside of the support pipe 28 and an extended scaffold 52 disposed outside the scaffold 22 on the extended support pipe 54;
The expansion support pipe 54 is installed to be folded upward from the support pipe 28, and the expansion scaffold 52 is installed to be folded in an arcuate direction with respect to the expansion support pipe 54. Maintenance device for a continuous catalyst regenerator.

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