JPS627595Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an internally reinforced tank.

It has already been practiced to assemble large containers such as tanks from a large number of right quadrilateral unit plates. As such a unit plate, one in which a right-angled rectangular substrate is provided with joining edges protruding to the same side on the four peripheries is widely used. The joining edge referred to here is
Slanted bond edges that are inclined at an angle of 135 degrees relative to the substrate and upright bond edges that are perpendicular to the substrate are known. In addition, as a unit board, there is one that has both inclined joint edges and upright joint edges on the four peripheries of the board,
Those having only one of them are used.

When a tank assembled using the unit plates described above is subjected to dynamic pressure on the side walls due to the movement of liquid during an earthquake, the side walls tend to tilt outward, especially when the bottom width is small. If the height is larger than the width of the base, it has the disadvantage of causing the product to fall over. Therefore, it became necessary to reinforce the side walls of the tank to prevent it from tilting.

It is known to use stays as a reinforcement structure for tanks. The stays used include those that support diagonally between the side walls and the bottom, and those that support horizontally between two opposing side walls. Of these, with horizontal stays, it is not possible to prevent the side wall from tilting by changing the right angle between the side wall and the horizontal stay to an obtuse or acute angle, so diagonal stays are considered to be a more effective reinforcement method.

However, in a tank with a large height, when trying to support the space between the top and bottom of the side wall with diagonal stays, the stays become extremely long, which makes the work of bringing the stays into the tank and fixing them complicated. Another drawback was that many diagonal stays intersected near the bottom, making it dangerous to pass through when inspecting the inside of the tank.

The inventor attempted to remedy the above-mentioned drawbacks. Then, install the diagonal stay that supports the top of the side wall.
By connecting the vertical stay and the horizontal stay halfway, instead of extending it to the bottom, and fixing the vertical stay to the bottom and the horizontal stay to the opposite side wall, you can shorten the diagonal stay, and at the same time, shorten the diagonal stay. I noticed that you can get the same effect. I also realized that vertical stays fixed to the bottom are less dangerous than diagonal stays because they prevent tripping. This invention was made based on such knowledge.

In other words, this idea is based on a tank with right-angled unit plates set up on the periphery of the bottom to form side walls.A diagonal stay that slopes up and down is provided inside the tank, the upper end of the diagonal stay is fixed to the top of the side wall, and the lower end is fixed to the top of the side wall. Connect the vertical stay and horizontal stay to the bottom, fix the lower end of the vertical stay to the bottom, and fix the end of the horizontal stay to the opposite side wall, or to the protruding ends of a pair of diagonal stays that protrude in an inverted V shape from the opposite side wall. connected,
It is a tank with internal reinforcement.

The internally reinforced tank according to this invention will be explained as follows based on the drawings. 1 to 5 are longitudinal sectional views showing an example of an internally reinforced tank according to this invention.

In FIG. 1, unit plates 1A in the shape of a right-angled quadrilateral are lined up to form a bottom a, and the unit plates 1A are arranged around the periphery of the bottom a.
are erected and serve as side walls b, c, etc. The unit plate 1A has a square substrate 11 and four circumferences thereof with upright joining edges 12 that stand upright with respect to the substrate 11. The side walls b, c, etc. are constructed by arranging four unit plates 1A in the vertical direction.

In this tank, a vertically inclined diagonal stay 2A is provided inside the tank. The upper end of the diagonal stay 2A is fixed to the upper part of the side wall b.
Here, the top is approximately one-third from the top.
means within. The lower end of the diagonal stay 2A is connected to the upper end of the vertical stay 3A and the middle of the horizontal stay 4 via a plate 5. vertical stay 3
The lower end of A is fixed to the bottom a, one end of the horizontal stay 4 is fixed to the side wall b, and the other end is fixed to the opposite side wall c. Thus, the internally reinforced tank according to this invention is assembled.

In the above tank, the substrate 11 of the unit plate 1A
The center part has a square, octagon, circle, cross,
It is possible to provide unevenness such as an x-shape. Further, fine irregularities may be present throughout, and the entire surface may be inclined, bulged, or depressed. This unit plate is made of reinforced synthetic resin (eg glass fiber reinforced polyester resin) or metal (eg iron). When connecting unit plates, it is appropriate to put a gasket between the joint edges and fix them with bolts. This invention is particularly suitable for application to tanks in which the height of side walls b, c, etc. is 3.5 meters or more. Note that a lid made of a unit plate of the same type or different type as the bottom or side wall is attached to the upper end of the side wall. In the figure, from the unit plate 1B in which the substrate 11 is bulged,
is assembled.

As the stays 2A, 3A and 4, a round bar, a square bar, a pipe, a steel band, an angle steel, a channel steel, etc. are used. Note that it is preferable that the diagonal stay 2B is also provided on the side of the side wall c, its upper end is fixed to the side wall c, its lower end is connected to the vertical stay 3B and the horizontal stay 4, and the lower end of the vertical stay 3B is fixed to the bottom a. Further, it is desirable that the diagonal stays 2C and 2D are inserted between the lower portions of the side walls b and c and the bottom a, and their upper ends are fixed to the side walls b and c, and their lower ends are fixed to the bottom a, respectively.

Stays 2A to 2D, 3A, 3B, and 4
When fixing each end of the stay, it is convenient to bend the ends of these stays parallel to the wall surface, or to weld small plates or collars to the ends, and even more convenient to attach stay locks to the ends. be. In this case, it is appropriate to use a stay lock 6 having an upright piece 62 on a small plate 61, to fix the end of the stay to the upright piece 62, and to fix the small plate 61 to the base plate 11. Note that it is preferable that the ends of the stays be located close to the joints of the unit plates, and the stay locks be fixed across or along the joints of the unit plates. Further, when fixing the stay lock on the side wall, it is preferable that the joints of the unit plates extend in the vertical direction.

This invention includes the following embodiments in addition to those described above.

In FIG. 2, side walls b, c, etc. of the tank are assembled from a unit plate 1c having a rectangular base plate 11. In FIG. In addition, one end of the horizontal stay 4 is connected to the lower end of the diagonal stay 2A that slopes up and down, and the horizontal stay 4
The other end is connected to the protruding ends of a pair of diagonal stays 2E and 2F that protrude in an inverted V shape from the opposing side wall c. A diagonal stay 2G is provided on the side of the side wall b in symmetry with the diagonal stay 2F, and its upper end (projecting end) is fixed to the horizontal stay 4 and its lower end is fixed to the side wall b.

In FIG. 3, the bottom a, side walls b, c, etc., and lid d of the tank are all assembled from unit plates 1D. The unit board 1D has the substrate 11 on the four peripheries of the substrate 11.
An inclined joining edge 13 is provided which is inclined at an angle of approximately 135 degrees with respect to the slanted joining edge 13, and an upright joining edge 12 is provided beyond that. In this tank, in addition to the vertically inclined diagonal stays 2A to 2D, the vertical stays 3A, 3B, and the horizontal stay 4 provided in the same way as the tank shown in FIG.
Vertically inclined diagonal stays 2H and 2I are interposed between the two. The upper ends of the diagonal stays 2H and 2I are close to the ends of the horizontal stay 4 on the side walls b and c, respectively, and are fixed on the same stay lock 6. The lower ends are close to each other on the bottom a and are fixed on the same stay lock 6. Note that this figure shows that the vertical stays 3A and 3B may be joined in the middle. Also, angle steel is used as the stay.

In FIG. 4, the bottom a and side walls b, c, etc. of the tank are assembled from the unit plate 1D, and the lid d is assembled from the unit plate 1B. In this tank, diagonal stays 2A to 2D, 2H, 2I that tilt up and down,
The vertical stays 3A, 3B and the horizontal stay 4 are provided almost in the same way as in FIG. 3, but the only difference is that the lower ends of the diagonal stays 2H, 2I are not close to each other, but intersect in the middle. .

In Fig. 5, the bottom a and the lid d of the tank are connected to the unit plate 1.
It is assembled from unit plates 1D and 1E, and side walls b, c, etc. are assembled from unit plates 1D and 1E. The unit plate 1E is
In the unit board 1D, the substrate 11 is rectangular. In this tank, diagonal stays 2A, 2B, 2H, 2I that tilt up and down, vertical stay 3A
and a horizontal stay 4 are provided almost in the same way as in Fig. 3, except that the lower end of the diagonal stay 2B is connected to the horizontal stay 4, and at the same time, it is also connected to the lower end of the diagonal stay 2A and the upper end of the vertical stay 3A. The points are different.

The internally reinforced tank according to this invention has a diagonal stay that slopes up and down inside the tank, the upper end of the diagonal stay is fixed to the top of the side wall, and the lower end is connected to the vertical stay and the horizontal stay, so the lower end of the diagonal stay There is no need to extend it to the bottom, and the diagonal stay can be shortened. Therefore, it is easy to bring into the tank, and the fixing work is not dangerous. In addition, there is less risk of traffic when inspecting the inside of the tank. Furthermore, the lower end of the vertical stay is fixed to the bottom, and the end of the horizontal stay is fixed to the opposite side wall or connected to the protruding ends of a pair of diagonal stays protruding from the opposite side wall in an inverted V shape, so that the upper part of the side wall Almost the same reinforcing effect as fixing the lower end of the diagonal stay to the bottom can be obtained. This invention has excellent effects as described above.

[Brief explanation of the drawing]

1 to 5 are longitudinal sectional views showing an example of a reinforced tank of this invention. In each figure, a is the bottom, b and c are the side walls, d
is the lid, 1A to 1E is the unit plate, 2A to 2I
is a diagonal stay, 3A and 3B are vertical stays, 4
1 is a horizontal stay, 5 is a plate, 6 is a stay lock, 11 is a base plate, 12 is an upright joining edge, 13 is an inclined joining edge, 61 is a small plate, and 62 is an upright piece.

Claims (1)

[Scope of utility model registration request] In a tank with right-angled unit plates set up on the periphery of the bottom to form side walls, a diagonal stay that slopes up and down is provided inside the tank, the upper end of the diagonal stay is fixed to the top of the side wall, and the lower end is fixed to the vertical stay and horizontal stay. internal reinforcement, with the lower end of the vertical stay fixed to the bottom and the end of the horizontal stay fixed to the opposite side wall, or connected to the protruding ends of a pair of diagonal stays protruding from the opposite side wall in an inverted V shape. tank.