JPS6034635Y2 - assembly type tank - Google Patents

Description

[Detailed explanation of the idea] This invention relates to an improvement of a prefabricated tank.

It is convenient to assemble large containers such as tanks from a number of unit plates.

Such a unit board is a shallow box-shaped board (1973-1983-1), which is made of a right-angled rectangular board with only upright joint edges around the four peripheries.
No. 27400), or a shallow box-shaped product (Utility Model Publication No. 3963/1983), which has inclined joining edges around the four peripheries of the substrate and an upright joining edge beyond that, was used.

To assemble a tank from these unit plates, a large number of unit plates are arranged on the same plane with their joining edges facing the same side, and the joining edges of adjacent unit plates are bolted together via band-shaped packing, thus forming one unit plate. It is normal to construct a tank wall and combine the tank walls to form a tank.

Here, as the band-shaped packing, one having a constant thickness in both the longitudinal direction and the width direction was used.

In the above unit board, the upright joining edge is 9
It is specified that it should stand upright at an angle of 0 degrees, but when actually manufacturing it, the upright joint edge should be sloped slightly outward toward the edge of the tip from where the substrate is. was common.

The reason for this is that when the unit plate is a synthetic resin molded body, the above slope is given to make it easier to remove the molded body from the mold, and when the unit plate is a pressed product of a metal plate, the slope is
．． This is because the joining edge opens outward due to the elasticity of the metal plate.

Therefore, when bolting is performed with the joint edges facing the same side, the gap between the joint edges becomes wider as the board gets closer to the side, as shown in Figure 9, and the liquid enters the board along the arrow X. However, there was a tendency for liquid leakage to occur due to the bolt coming off into the bolt insertion hole.

Furthermore, even if the upright joint edge is properly erect, when the unit plate is subjected to hydraulic pressure, the central part will flex in a concave manner, and this deflection will cause the board at the joint edge to open up, as shown in Figure 10. , a gap opens between the bonding edges that gets wider as it gets closer to the substrate, and the liquid penetrates the substrate along the arrow y.
There was a tendency for liquid leakage to occur due to the bolt passing through the hole.

At first glance, it appeared that these leaks could be prevented by inserting packing between the bolt head and the joint edge, and between the nut and the joint edge.

However, the part where the bolt leg and nut screw fit together,
Insertion of the packing into the bolt head and nut as described above does not allow for airtightness, and therefore it has not been possible to completely prevent liquid leakage.

This inventor thought to prevent the above-mentioned leakage.

To this end, we thought that an effective means to prevent liquid from entering between the bonding edges would be to use the edges of the substrates.

Then, use a packing whose thickness in the width direction is large on one side edge divided by the position of the bolt and small on the other side edge, and the thick side of this packing is attached to the board. When I tried sandwiching it between the joint edges toward the
It was found that leakage was completely prevented.

This idea was made based on such ideas and knowledge.

In other words, this idea consists of using a shallow box-like object with joining edges attached to the four peripheries of a rectangular board as a unit plate, arranging the unit plates with the joining edges facing the same side, and inserting a packing between the joining edges. However, in a tank that is fixed by passing a bolt through it, the gasket is a strip that extends in one direction, and the thickness is constant in the longitudinal direction, but the thickness varies in the width direction.
An assembly type in which the thickness is large on one side edge divided by the bolt position, and the thickness is small on the other side edge, and the thick side is sandwiched between the joining edges with the thick side facing the board. It's a tank.

The assembled tank of this invention is explained based on the drawing.
It is as follows.

FIG. 1 is a sectional view showing an example of an assembly type tank of this invention.

2 to 7 are partially cutaway perspective views showing an example of the gasket used in this invention.

FIG. 8 is a sectional view showing another example of the assembled tank of this invention.

In FIG. 1, the side walls and bottom of the tank are connected to unit plate IA
It is assembled from.

The unit plate IA has only upright joining edges 12 provided on the four peripheries of a right-angled rectangular substrate 11.

The upright joining edge 12 stands upright at an angle of approximately 90 degrees with respect to the substrate 11, but strictly speaking, the upright joining edge 12 stands upright at an angle of approximately 90 degrees with respect to the upright direction.
It has a slope of about 1/0.

The substrate 11 may have a three-layer structure including a heat insulating material in the center, or may be provided with an uneven pattern.

A plurality of unit plates 1A are arranged on the same plane with the upright joint edges 12 facing outward, the upright joint edges 12 of adjacent unit plates are brought into contact with each other, and the gasket 2A is inserted between them. .

As shown in FIG. 2, the packing 2A has a constant thickness in the longitudinal direction, but the thickness varies in the width direction, and the thickness is large at one side edge 21 separated by the bolt insertion hole 28. , the thickness is reduced along the other side edges 22.

The ridgeline of one side edge 21 or the other side edge 22 may be shaved.

Further, it is desirable that the thickness of one side edge 21 be at most twice the thickness of the other side edge 22.

The intersection angle θ of the straight line connecting both ends of the thickness of one side edge 21 and the other side edge 22 is suitably about 1 to 30 degrees, preferably about 1 to 10 degrees.

As shown in FIG. 1, the packing 2A is sandwiched between the upright joining edges 12 with the thicker side facing the substrate.

Upright joint edges 12 abutted against each other via seals 2A
are tightened with bolts 3, thus forming the side walls and bottom of the tank.

The side walls and the bottom are connected by angles 4 to assemble the tank.

Note that the bottom of the tank may be a single plate or concrete.

Further, the upright joining edge does not have to have an outward opening slope.

Furthermore, the upright joint edges may be directed towards the inside of the tank.

In the tank described above, the gaskets 2B to 2F shown in FIGS. 3 to 7 can be used instead of the gasket 2A.

The packing 2B shown in FIG. 3 is different from the packing 2A shown in FIG. 2 in that a protrusion 23 is provided near one side edge 21, that is, slightly inside, and as a result, the protrusion 23 is the thickest. It is something.

The packing 2C shown in FIG. 4 is the packing 2A shown in FIG. 2 except that a portion 24 having a constant thickness is provided near one side edge 21.

The packing 2D shown in FIG. 5 is one strip-shaped packing 2.
Attach narrow band-shaped flat packing 26 to both sides of 1.
One side edge 21 is thicker than the other side edge 22.

In this case as well, the intersection angle θ of the straight line connecting both ends of the thickness of one side edge 21 and the other side edge 22 is suitably about 1 to 30 degrees, and preferably about 1 to about 30 degrees.

The packing 2E shown in FIG. 6 is the packing 2D shown in FIG. 5 in which the narrow band-shaped flat packing 26 is attached only to one side of the band-shaped flat packing 25.

In addition, in these packings, a flange may be provided along the other side edge, and the flange may be shaved off after assembly.

The packing 2F shown in FIG. 7 is the packing 2A shown in FIG. 2 in which a cut is provided on a surface corresponding to the thickness of one side edge 21, and a liquid 27 is inserted into the cut.

Each of the above-mentioned gaskets is suitably made of rubber or soft synthetic resin foam.

Note that the plate-like body 27 can also be made of a hard material.

In the prefabricated tank of this invention shown in FIG. 8, the side walls and bottom are constructed from unit plates IB.

The unit board IB includes a substrate 1 on the four peripheries of a right-angled substrate 11.
an inclined joint edge 1 inclined at an angle of approximately 135 degrees relative to 1;
3, and an upright joining edge 12 is provided at the tip thereof.

The upright joining edge 12 has a slight outward slope.

A plurality of unit plates 1B are arranged with the upright joining edges 12 facing outward, and the upright joining edges 12 are connected to each other via a packing 2A to form the side wall and bottom of the tank.

The packing 2A is directed toward the thicker substrate.

The side walls and the bottom are connected by abutting the inclined joining edges 13 of the unit plates IB against each other.

In addition, the invention includes an assembled tank in which the lid is constructed in the same way as the bottom in FIGS. 1 or 8 above, and the lid is secured with the upright joint edges facing down.

The reason why the tank lid is designed to be liquid-tight is to prevent rainwater that falls on the lid from leaking into the tank and contaminating the liquid inside the tank.

The prefabricated tank according to this invention is a tank in which unit plates are connected by inserting a gasket between the joining edges, and the gasket is a strip-like material that extends in one direction and has a constant thickness in the longitudinal direction. , it is convenient for arranging a large number of unit plates and inserting them between the joining edges.

In addition, in the width direction of the packing, the thickness is large on one side edge divided by the bolt position, and the thickness is small on the other side edge, and the thick side is joined toward the board side. Since it is sandwiched between the edges, the liquid tightness between the bonding edges is further increased along the substrate.

As a result, the substrates are prevented from infiltrating liquid between the bonding edges.

Therefore, a great advantage is obtained that liquid leakage along the arrows X and y shown in FIGS. 9 and 10 is prevented.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the prefabricated tank of this invention, Figs. 2 to 7 are partially cutaway perspective views of the packing used in this invention, and Fig. 8 is a sectional view of the prefabricated tank of this invention. 9 and 10 are partially cutaway sectional views showing passages for leaking liquid. In each figure, IA and IB are unit plates, 2A to 2
F is the packing, 3 is the bolt, 4 is the angle, 11 is the board, 12 is the upright joining edge, 13 is the inclined joining edge, 21 is one side edge, 22 is the other side edge, 23 is the protrusion, 24 is the thickness 25 and 26 are band-shaped flat packings, 27 is a plate-like body, 28 is a bolt insertion hole, θ is an angle, and X and y are liquid passages.

Claims (1)

[Scope of utility model registration request] The unit plate is a shallow box-like object with joint edges attached to all four sides of a right-angled board, and the unit plates are lined up with the joint edges facing the same side, a packing is inserted between the joint edges, and a bolt is passed through it. In a tank fixed by a bolt, the gasket is a strip that extends long in one direction, and has a constant thickness in the longitudinal direction, but varies in thickness in the width direction, with one side edge separated by the position of the bolt. A prefabricated tank in which one side edge is thick, the other side edges are thinner, and the thicker edge faces the board and is sandwiched between the joining edges.