JPS6145071A - Assembling of tank side panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method of assembling a tank side plate in a storage tank.

``Prior art'' When assembling tank side plates, when the stored material is liquid, the liquid pressure is applied to the tank side plate, so it is necessary to thicken the plate at the lower position, and it is necessary to increase the thickness of the tank side plate. There are some points to keep in mind, such as not creating criss-cross shapes that are likely to cause welding defects in the joints of the steel plates that make up the product. Here, the cross of the joint section refers to a state in which the horizontal joint and the vertical joint intersect in the shape of a cross.

Therefore, in the conventional general tank side plate assembly method,
If the steel plates were to be used vertically, the thickness would have to be the same as the bottom end up to the highest position where a thinner plate would be needed, which would be uneconomical, so the steel plates would be stacked horizontally. Furthermore, in order to avoid criss-crossing at the joints, a so-called brick masonry construction method is adopted in which each stage is appropriately shifted so that the vertical joints 10 of the upper and lower stages do not coincide, as shown in FIG.

When assembling tank side plates in this way, the larger each steel plate is, the fewer steel plates will be required for a storage tank of the same size, which will reduce the number of welding points and the number of times of transportation at the site, and reduce the number of steel plates needed for assembly. It is considered that the TIE rate of is -1. However, in reality, due to manufacturing limitations, etc., only steel plates with a maximum width of 3,5 +n can be used. Therefore, in order to increase the stacking unit, a method in which a plurality of steel plates are joined together to form a block with tJ- has been adopted in recent years.

Conventional methods for assembling tank side plates using blocks include, for example, the method described in Japanese Patent Publication No. 53-54'/1987 No. 2 Specification ■J, and the method described in Japanese Patent Publication No. 50-146]37 Specification 11). There are some things listed. Special Public Service 1973-
As shown in FIG. 6, the method of mounting a tank side plate disclosed in the specification of Publication No. 54.72 involves welding 111 steel plates 12 from the bottom to the top of the tank side plate in a line. In order to prevent the formation of a cross between one block 11 and the l-1 adjacent block 11, steel plates 13 whose widths are appropriately divided are alternately used at the highest or lowest stage of the block 11. However, the R joint 14 of the block 11 is welded on-site. Also, Japanese Patent Publication No. 1973-
1461: The tank side plate assembly method of '17 publication is
As shown in the figure, steel plates 17. have the same length but different widths.
2.4 pieces of 18 are lined up in the width direction and welded to form one block 16, and the horizontal joints 19 of adjacent blocks 16 are
・It is characterized by forming each tier by connecting them all around the tank so as not to cause any damage, and by shifting the tiers as appropriate using the stacking method.

1-Problems to be Solved" However, since each block 11 is very large, the method of assembling the tank side plate shown in Fig. 6 requires large pieces of equipment and a lot of manpower to prevent it from falling over. , work efficiency deteriorates and costs increase. In addition, in the one-standing method of tank side plates shown in Fig. 7, by using a short width steel plate 18 for each block 16, the crisscross can be eliminated, but the original purpose is to increase the stacking unit. The effectiveness of the block construction method has been lost. Furthermore, in these two conventional one-stand methods, when the plate thickness is changed within the block 11.16, the horizontal joints 15.19 of the adjacent blocks 11, j6 are shifted. However, there are disadvantages such as the change in thickness of the plates is not uniform, making it difficult to weld the vertical joints 14 and 20.

1. LI Objective of the Invention Accordingly, an object of the present invention is to provide a method for assembling a tank side plate that eliminates the above-described drawbacks of the prior art, improves work efficiency, and reduces costs.

Structure 1 of the Invention According to this invention, the method for assembling the tank side plate is to weld an appropriate number of horizontally long steel plates in the width direction using the same 11 method in terms of width and length. One vertically long steel plate is melted on the side edge of the steel plate extending in the width direction.
A rectangular block is formed, and each stage is formed by connecting multiple blocks around the entire circumference of the tank so that the vertically long steel plate of each block touches the horizontally long steel plate of the adjacent block. Shift the next stage appropriately in the longitudinal direction so that it does not match the HaII hand of the next stage, and gradually move the next stage until it reaches the final stage.
It consists of going by de.

Other objects, features and advantages of this invention are listed below.
It will become clear from the detailed description along with the drawings.

1-Embodiment of the invention" FIG. 1 of the drawings shows an exploded view showing the division of a tank side plate made up of two J parts in one embodiment of the method for assembling a tank side plate according to the present invention. has been done. In one method of constructing tank side plates of this invention, first, as shown in Fig. 2, two oblong steel plates 2.3 of the same width and length are welded together in the width direction, and then A vertically long steel plate 4 is welded to one of the side edges to form a rectangular block 1. Next, the blocks 1 are arranged around the entire circumference of the tank, and the vertical joints 5 are welded to form the first stage of the tank side plate. At this time, the vertically elongated steel plates 4 of the blocks 1 are arranged so as to be in contact with the steel plates 2 and 3 of the adjacent blocks 1 so that a cross is not formed at the joints of the adjacent blocks 1. Next, the second stage is formed in the same manner as the first stage 1, and the brickwork is laid.

According to the method, shift the vertical joint 5.6 by 1 in the direction of the force, and the 1st r1
．． Stack them so that a cross does not form between [] and the second layer. 1: Repeat this operation until the last stage is assembled, completing the tank side plate assembly work.

In this invention, in the construction of the storage tank, block 1
-1 If it becomes necessary to change the thickness of some of the steel plates 3 and the lower steel plate 2; as shown in Figure 3, the cross section is the same as the mi shape of the welded horizontally long steel plate 2.3. A plate having the shape of a single plate can be used as the vertically elongated steel plate 4. By using tiered plates in this way, the change in plate thickness is continuous all around the tank.

Further, in this first embodiment, the number of horizontally long steel plates in the block 1 is two, but it may be three as shown in FIG. 4, but this number can be selected as appropriate.

``Effect of the invention-1 According to this invention 1, it is possible to assemble the tank side plate without making a cross section, and also it is possible to use one block of steel plates with the maximum width. The units are very large, which reduces the number of welding locations and the number of times steel plates are transported on site, improving work efficiency.
d. In addition, since the block according to the present invention is not unnecessarily large, it can be prevented from collapsing (there is no need to spend money on the utensils and manpower, and it is possible to reduce costs.・Using a single plate Since the change in plate thickness is continuous all around the tank,
The welding work of the vertical joint becomes easier, and as a result, the storage tank itself can be made more flexible. This vertically long steel plate can be used effectively for installing nozzles, manholes, etc. That is, when installing a nozzle, etc., it is necessary to place the steel plate at the installation position into the furnace once in order to remove the 11fji force, but since the vertically long steel plate in the block of this invention is smaller than the horizontally long steel plate. ,
Stress relief work can be done easily. As described in [1] below, the method for assembling tank side plates according to the present invention exhibits superior effects in terms of work efficiency and economy +11: compared to conventional assembling methods.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded view showing the splitting of a tank side plate erected by an embodiment of the tank side plate An-erecting method according to the present invention, and FIG. 2 shows one block in FIG. 1. Schematic explanatory drawing, FIG. 3 is a sectional view taken along line A-A in FIG. 2 when using a stepped plate, and fIS4 is a schematic explanatory drawing showing another block made according to the method of the present invention. , and FIGS. 5 to 7 are partially exploded views showing the division of a tank side plate assembled according to a conventional tank side plate assembly method. In the figure, 1.11.16: block, 2.
3, d, + 2.43.17.18: Steel plate, 5.6.1
0.1・4,20: Vertical joint, 15.19: Horizontal joint.

Claims (1)

[Claims] 1. An appropriate number of horizontally long steel plates having the same width and length are lined up in the width direction and welded, and one vertically long steel plate is attached to one of the side edges extending in the width direction of the welded steel plates. Steel plates are welded to form a rectangular block, and multiple blocks are connected all around the tank so that the vertically long steel plate of each block touches the horizontally long steel plate of the adjacent block to form each stage. A method for assembling a tank side plate, characterized by assembling the next stage to the top stage while appropriately shifting the next stage in the longitudinal direction so that the vertical joint of the next stage does not coincide with the vertical joint of the next stage. 2. The method for assembling a tank side plate according to claim 1, characterized in that a stepped plate can be used for the longitudinally extending steel plate so that the change in thickness of the steel plate is continuous over the entire circumference of the tank. .