KR100969698B1 - Plate for gas holder and manufacturing method thereof - Google Patents

Plate for gas holder and manufacturing method thereof Download PDF

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Publication number
KR100969698B1
KR100969698B1 KR1020100036880A KR20100036880A KR100969698B1 KR 100969698 B1 KR100969698 B1 KR 100969698B1 KR 1020100036880 A KR1020100036880 A KR 1020100036880A KR 20100036880 A KR20100036880 A KR 20100036880A KR 100969698 B1 KR100969698 B1 KR 100969698B1
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KR
South Korea
Prior art keywords
plate
bent
base plate
bending
cutting groove
Prior art date
Application number
KR1020100036880A
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Korean (ko)
Inventor
김용훈
Original Assignee
(주)조일금속
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Publication date
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Priority to KR1020100036880A priority Critical patent/KR100969698B1/en
Application granted granted Critical
Publication of KR100969698B1 publication Critical patent/KR100969698B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding

Abstract

The present invention, the base plate is formed long in the longitudinal direction, the first bending plate vertically bent at one end in the width direction of the base plate, and the vertical bending in the direction in which the first bent plate is bent at the other end in the width direction of the base plate It comprises a second bent plate which is formed, the first rectangular edge portion is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the first bent plate, the outer side between the base plate and the first bent plate A first bent portion is formed at the central portion in the longitudinal direction of the connection portion, and second rectangular corners are formed at both ends of the longitudinal connection portion of the outer connection portion between the base plate and the second bent plate, and the base plate and the second bent plate. In the manufacturing method of the plate for gas holders in which the 2nd bending part is formed in the longitudinal center part of the outer connection part in between; Preparing a plate for the plate for the gas holder; Forming a first cutting groove and a second cutting groove, respectively, by cutting along the portion where the first rectangular corner portion is to be positioned and the second rectangular corner portion on the plate; The flat plate is formed such that the first cutting groove is perpendicular to any one of the base plate and the first bending plate, and the second cutting groove is perpendicular to any one of the base plate and the second bending plate. Forming a first bent portion and a second bent portion by bending to be divided into a base plate, the first bent plate, and the second bent plate; Forming the first rectangular corner portion and the second rectangular corner portion by fusing and grinding the first cutting groove and the second cutting groove in the state where the first bent portion and the second bent portion are formed; Characterized in that comprises a.

Description

Production method of gas holder plate and plate for gas holder {PLATE FOR GAS HOLDER AND MANUFACTURING METHOD THEREOF}

The present invention relates to a method for producing a plate for a gas holder and a plate for a gas holder produced thereby.

In general, steel mills cover most of the fuel required for the production process through by-product gases (COG, BFG, LDG, and FOG) generated in the treatment process, and surplus by-product gas is used for self-power generation in the steel mill.

In order to store such by-product gas, a gas holder as shown in FIG. 1 is required.

The diameter of the gas holder is approximately 30m to 100m, and the height of the gas holder is 50m to 100m.

In order to construct such a gas holder, a plate for the gas holder is required.

Hereinafter, a shell plate of the gas holder plate will be described.

In order to form a gas holder, the columns 10 are spaced apart at predetermined intervals and installed in a vertical direction to form a generally circular shape, and the shell plate 20 is horizontally formed in a shape as shown in FIG. 2 with respect to the column 10. Is installed.

In addition, the shell plate 2 installed horizontally between the two columns 10 is stacked in the vertical direction to form a shell of the gas holder.

The quality standards required for the shell plate 20 will be described with reference to FIG. 3.

The shell plate 20 shown in FIG. 3 has a width H of 810 mm and a length L of 5900 mm.

In addition, the shell plate 20 basically includes a base plate 21 that is elongated in the longitudinal direction, a first bent plate 22 that is vertically bent at one end in the width direction of the base plate 21, and a base plate 21. The second bending plate 23 is bent in the bending direction in the other end in the width direction.

At this time, the outer connecting portion between the base plate 21 and the first bent plate 22 forms the first bent portion 22a due to the bending of the iron plate, and the base plate 21 and the second bent plate 23. The outer connection portion between them forms the second bent portion 23a due to the bending of the iron plate.

The first bent portion 22a and the second bent portion 23a form an arc having a radius of approximately 14 mm due to the bending of the iron plate.

On the other hand, both ends of the first bent portion (22a) and both ends in the longitudinal direction of the second bent portion (23a) forms a first rectangular corner portion (22b) and a second rectangular corner portion (23b), the first rectangular corner portion The 22b and the second right corner 23b are not only directly welded to the column 10 but also define the overall height at which the shell plates 20 are stacked when the shell plates 20 are stacked, which is a separate quality. Requires a standard.

That is, the first right angled corner portion 22b and the second right angled corner portion 23b should be formed as perfect right angled corners, and the spacing H between the first right angled corner portion 22b and the second right angled corner portion 23b is Errors within 0.3mm are only allowed.

Due to such a highly precise tolerance H, the first right angle corner 22b and the second right angle corner 23b cannot be manufactured by the current bending technique.

In order to solve this problem, conventionally, as shown in FIG. 3, the first rectangular corner portion 22b and the second rectangular corner portion 23b are welded by nurturing and welding on the outer connection portion in a state of being bent first. After each of the portions 25 was formed, the surface of the welded growth portion 25 was ground to have a complete right angle shape.

However, grinding the weld growth part 25 in a perfect right angle requires considerable time, and also while checking the tolerance for the gap H between the first right angle corner 22b and the second right angle corner 23b. Not only does it take much longer to work, but it also often results in deviations of tolerance by hand.

In addition, when performing the grinding operation on the welding growth portion 25, the base plate 21, the first bending plate 22, the second bending plate 23 connected to the welding growth portion 25 is often ground (21), the thickness of the first bent plate 22, the second bent plate 23 can be reduced to deteriorate the quality of the product.

This problem is not limited to the shell plate for the gas holder, and the same problem occurs for the roof plate for the gas holder.

The structure of the shell plate and the roof plate is somewhat different, but the basic problem is the same.

The present invention has been made to solve the problems of the prior art as described above, a new type of gas holder plate manufacturing method in which the grinding operation can be performed very simply while satisfying the quality standards required for the gas holder plate very easily. And to thereby provide a plate for the gas holder is produced.

In order to solve the above problems, the present invention, the base plate is formed long in the longitudinal direction, the first bent plate vertically bent at one end in the width direction of the base plate, and the first bend at the other end in the width direction of the base plate And a second bending plate vertically bent in the bent direction, wherein first and second corners are formed at both ends in the longitudinal direction of the outer connection portion between the base plate and the first bending plate, and the base plate and the The first bent portion is formed in the longitudinal center portion of the outer connecting portion between the first bent plate, the second right corner is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the second bent plate, In the manufacturing method of the plate for gas holders in which the 2nd bending part is formed in the longitudinal center part of the outer connection part between a plate and the said 2nd bending plate; Preparing a plate for the plate for the gas holder; Forming a first cutting groove and a second cutting groove, respectively, by cutting along the portion where the first rectangular corner portion is to be positioned and the second rectangular corner portion on the plate; The flat plate is formed such that the first cutting groove is perpendicular to any one of the base plate and the first bending plate, and the second cutting groove is perpendicular to any one of the base plate and the second bending plate. Forming a first bent portion and a second bent portion by bending to be divided into a base plate, the first bent plate, and the second bent plate; Forming the first rectangular corner portion and the second rectangular corner portion by fusing and grinding the first cutting groove and the second cutting groove in the state where the first bent portion and the second bent portion are formed; Characterized in that comprises a.

In the above, in the forming of the first bent portion and the second bent portion, the first cutting groove may be perpendicular to the base plate, and the second cutting groove may be perpendicular to the base plate.

According to another aspect of the present invention, a base plate elongated in the longitudinal direction, a first bent plate vertically bent at one end in the width direction of the base plate, and a direction in which the first bent plate is bent at the other end in the width direction of the base plate And a second bending plate vertically bent to each other, wherein first and second corner portions are formed at both ends in the longitudinal direction of the outer connection portion between the base plate and the first bending plate, and the base plate and the first bending plate. A first bent portion is formed at the central portion in the longitudinal direction of the outer connecting portion therebetween, and a second right angled corner is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the second bent plate, and the base plate and the first In the plate for a gas holder in which a 2nd bending part is formed in the longitudinal center part of the outer connection part between 2 bending plates; The first bent portion is formed by bending the base plate and the first bent plate; The second bent portion is formed by bending the base plate and the second bent plate; The first right angle corner portion is formed by grinding the welded portion after the spaced portions are separated from each other while the base plate and the first bent plate are spaced apart from each other; The second rectangular corner portion is formed by grinding the welded portion after the spaced apart portions of the base plate and the second bending plate are spaced from each other while being perpendicular to each other; It is characterized by.

In the above, the portion where the base plate and the first bent plate to be spaced apart from each other to form the first rectangular corner portion is located on the extending surface of the first bent plate, the base to form the second rectangular corner portion The portion where the plate and the second bent plate are spaced apart from each other is preferably located on the extending surface of the second bent plate.

As described above, the present invention provides a new type of gas holder plate manufacturing method and a gas holder plate manufactured thereby, in which grinding operation can be performed very simply while satisfying the quality standards required for the gas holder plate very easily. Done.

1 is a photo of a gas holder,
2 is a schematic perspective view of a state in which a shell plate for a gas holder is installed in a column;
3 is a perspective view and a sectional view of a main portion of a shell plate for a conventional gas holder;
Figures 4a to 4d sequentially illustrate the manufacturing process of the shell plate for the gas holder according to an embodiment of the present invention,
5a to 5d sequentially illustrate the manufacturing process of the shell plate for a gas holder according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted for simplicity of explanation, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

This gas holder plate manufacturing method will be described with reference to FIGS. 4A to 4D.

First, prepare a flat plate 100 for the gas holder plate as shown in Figure 4a.

FIG. 4A is a plan view of the flat plate 100, and the flat plate 100 is cut to conform to the shape of the gas holder plate.

Next, as illustrated in FIG. 4B, the flat plate 100 is cut along the portion where the first rectangular corner portion is to be formed and the portion where the second rectangular corner portion is to be formed to form the first cutting groove 101 and the second cutting groove 102. Form each.

At this time, since the cutting process uses laser cutting, a very precise cutting process is possible.

4B is a plan view of the flat plate 100 on which the first cutting groove 101 and the second cutting groove 102 are formed.

Next, as shown in FIG. 4C, the flat plate 100 is bent in the form of a gas holder plate. 4C is a partial perspective view and a cross-sectional view of the main portion of the bent plate.

Therefore, the flat plate 100 has a base plate 110 that is formed to be elongated in the longitudinal direction, the first bent plate 120 vertically bent at one end in the width direction of the base plate 110, and the other end in the width direction of the base plate 110. It is bent in a shape including a second bending plate 130 that is vertically bent at.

By this bending process, the central portion in the longitudinal direction of the outer connecting portion of the base plate 110 and the first bent plate 120 is bent form, that is, the first bent portion 121 having an arc-shaped cross-sectional structure The center portion in the longitudinal direction of the outer connecting portion of the base plate 110 and the second bending plate 130 is formed in the form of the iron plate is bent, that is, the second bending portion 131 having an arc-shaped cross-sectional structure is formed.

In addition, the base plate 110 and the first bent plate 120 of the portion where the first cutting groove 101 is formed by such a bending process is to be spaced apart from each other while forming a right angle, the first cutting groove 101 is It forms a right angle with respect to the base plate 110.

In addition, the base plate 110 and the second bent plate 130 of the portion where the second cutting groove 102 is formed at a right angle and are spaced apart from each other, the second cutting groove 102 is the base plate 110 At right angles.

In addition, the width of the base plate 110 of the portion where the first cutting groove 101 and the second cutting groove 102 is formed has a length suitable for the width H required for the plate for the gas holder.

In particular, since the width H of the base plate 110 is a portion processed by laser cutting, it is very easy to satisfy the tolerance of 0.3 mm.

Next, as shown in FIG. 4D, the first cutting groove 101 and the second cutting groove 102 are welded and welded to each of the first cutting groove 101 and the second cutting groove 102. When the 101a and the second welding growth portion 102a are formed, the first rectangular corner portion 122 and the second rectangular corner portion 132 are completed.

At this time, the grinding work is performed only on the portion where the first cutting groove 101 and the second cutting groove 102 are located, so the grinding work amount is very small and the operation is simple.

Hereinafter, another method of manufacturing the plate for the gas holder will be described with reference to FIGS. 5A to 5D. In this method, the same details as those of FIGS. 4A to 4D will be omitted.

First, as shown in FIG. 5a, a plate 100 for a gas holder plate is prepared.

Next, as illustrated in FIG. 5B, the flat plate 100 is cut along the portion where the first rectangular corner portion is to be formed and the portion where the second rectangular corner portion is to be formed to form the first cutting groove 101 and the second cutting groove 102. Form each. At this time, the position of the first cutting groove 101 and the second cutting groove 102 is somewhat different from FIG. 4b.

Next, as illustrated in FIG. 5C, the flat plate 100 is bent in the form of a gas holder plate.

Therefore, the flat plate 100 has a base plate 110 that is formed to be elongated in the longitudinal direction, the first bent plate 120 vertically bent at one end in the width direction of the base plate 110, and the other end in the width direction of the base plate 110. The second bending plate 130 is vertically bent in the form consisting of.

By this bending process, the central portion in the longitudinal direction of the outer connecting portion of the base plate 110 and the first bent plate 120 is bent form, that is, the first bent portion 121 having an arc-shaped cross-sectional structure The center portion in the longitudinal direction of the outer connecting portion of the base plate 110 and the second bending plate 130 is formed in the form of the iron plate is bent, that is, the second bending portion 131 having an arc-shaped cross-sectional structure is formed.

In addition, the base plate 110 and the first bent plate 120 of the portion where the first cutting groove 101 is formed by such a bending process is to be spaced apart from each other while forming a right angle, the first cutting groove 101 is The first bent plate 120 is formed at a right angle.

In addition, the base plate 110 and the second bent plate 130 of the portion where the second cut groove 102 is formed is a state perpendicular to the spaced apart from each other, the second cut groove 102 is the second bent plate 130 Right angle to).

In addition, the distance between the outer surface of the first bent plate 120 and the outer surface of the second bent plate 130 of the portion formed with the first cutting groove 101 and the second cutting groove 102 is required for the gas holder plate It will have a length suitable for the width H.

Next, as shown in FIG. 5D, the first welding grooves are formed in the first cutting grooves 101 and the second cutting grooves 102 by grinding and welding the first cutting grooves 101 and the second cutting grooves 102, respectively. When the 101a and the second welding growth portion 102a are formed, the first rectangular corner portion 122 and the second rectangular corner portion 132 are completed.

At this time, the grinding work is performed only on the portion where the first cutting groove 101 and the second cutting groove 102 are located, so the grinding work amount is very small and the operation is simple.

In the above, there is a portion bent further in the first bent plate, which is not related to the gist of the present invention, and the detailed description is omitted. Also, the same problem is solved by the present invention as well as the roof plate of the plate for the gas holder. It will be apparent to those skilled in the art.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The invention can be applied to plates for gas holders, in particular shell plates and roof plates.

100: reputation
101: first cutting groove 102: second cutting groove
101a: first welding growth portion 102a: second welding growth portion
110: base plate
120: first bent plate 121: first bent portion
122: first right angle corner
130: second bending plate 131: second bending part
132: second right angle corner

Claims (4)

A base plate elongated in the longitudinal direction, a first bent plate vertically bent at one end in the width direction of the base plate, and a second bent vertically bent in the direction in which the first bent plate is bent at the other end in the width direction of the base plate It comprises a plate, the first rectangular edge portion is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the first bent plate, the length of the outer connecting portion between the base plate and the first bent plate The first bent portion is formed in the central portion of the direction, the second right corner is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the second bent plate, the outer connection between the base plate and the second bent plate In the manufacturing method of the plate for gas holders by which the 2nd bending part is formed in the longitudinal center part of a site | part;
Preparing a plate for the plate for the gas holder;
Forming a first cutting groove and a second cutting groove, respectively, by cutting along the portion where the first rectangular corner portion is to be positioned and the second rectangular corner portion on the plate;
The flat plate is formed such that the first cutting groove is perpendicular to any one of the base plate and the first bending plate, and the second cutting groove is perpendicular to any one of the base plate and the second bending plate. Forming a first bent portion and a second bent portion by bending to be divided into a base plate, the first bent plate, and the second bent plate;
Forming the first rectangular corner portion and the second rectangular corner portion by fusing and grinding the first cutting groove and the second cutting groove in the state where the first bent portion and the second bent portion are formed;
Method of producing a plate for a gas holder comprising a.
The method of claim 1,
In the forming of the first bent portion and the second bent portion, the first cutting groove forms a right angle with respect to the base plate, and the second cutting groove forms a right angle with respect to the base plate. How to make.
A base plate elongated in the longitudinal direction, a first bent plate vertically bent at one end in the width direction of the base plate, and a second bent vertically bent in the direction in which the first bent plate is bent at the other end in the width direction of the base plate It comprises a plate, the first rectangular edge portion is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the first bent plate, the length of the outer connecting portion between the base plate and the first bent plate The first bent portion is formed in the central portion of the direction, the second right corner is formed at both ends in the longitudinal direction of the outer connecting portion between the base plate and the second bent plate, the outer connection between the base plate and the second bent plate In the plate for a gas holder in which a 2nd bending part is formed in the longitudinal center part of a site | part;
The first bent portion is formed by bending the base plate and the first bent plate;
The second bent portion is formed by bending the base plate and the second bent plate;
The first right angle corner portion is formed by grinding the welded portion after the spaced portions are separated from each other while the base plate and the first bent plate are spaced apart from each other;
The second rectangular corner portion is formed by grinding the welded portion after the spaced apart portions of the base plate and the second bending plate are spaced from each other while being perpendicular to each other;
Gas holder plate, characterized in that.
The method of claim 3, wherein
A portion of the base plate and the first bent plate spaced apart from each other to form the first rectangular corner portion is located on the extension surface of the first bent plate,
Where the base plate and the second bending plate spaced apart from each other to form the second rectangular corner portion is located on the extension surface of the second bending plate
Gas holder plate, characterized in that.
KR1020100036880A 2010-04-21 2010-04-21 Plate for gas holder and manufacturing method thereof KR100969698B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100036880A KR100969698B1 (en) 2010-04-21 2010-04-21 Plate for gas holder and manufacturing method thereof

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Application Number Priority Date Filing Date Title
KR1020100036880A KR100969698B1 (en) 2010-04-21 2010-04-21 Plate for gas holder and manufacturing method thereof

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KR100969698B1 true KR100969698B1 (en) 2010-07-14

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200235703Y1 (en) 2001-03-20 2001-10-08 고창덕 A bar bending and cutting apparatus
KR20020035703A (en) * 2000-11-07 2002-05-15 김재환 Power generator using turbine and compressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020035703A (en) * 2000-11-07 2002-05-15 김재환 Power generator using turbine and compressor
KR200235703Y1 (en) 2001-03-20 2001-10-08 고창덕 A bar bending and cutting apparatus

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