JPS6215180Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a tank equipped with a lid.

It has already been practiced to assemble the lids of large containers such as tanks from a large number of unit plates. Various types of unit plates are used, but a typical one is one in which a joining edge is provided at the periphery of a right-angled rectangular substrate. The joining edge here includes an inclined joining edge that is inclined at an angle of approximately 135 degrees with respect to the substrate, and an inclined joining edge that is inclined at an angle of approximately 90 degrees with respect to the substrate.
and an upright joint edge that stands upright at an angle of .degree. Furthermore, unit plates are known in which both an inclined joint edge and an upright joint edge are provided on the peripheral edge of the substrate, and those in which only one of them is provided.

However, a lid assembled from such unit plates has the disadvantage that it sags due to its own weight and bends into a recess. One method to prevent this drawback was to erect pillars inside the tank and support the lid from below with the pillars. However, when using this method, it is necessary to erect a pillar at each intersection point where at least four unit plates intersect at one point, which results in a forest of pillars standing inside the tank, which becomes an obstacle when cleaning the inside of the tank. Another drawback occurred.

In order to prevent the lid from denting, the inventor installed a plurality of beams parallel to each other at intervals approximately equal to the distance between the two sides of the unit plate, and placed the two opposing sides of the unit plate on the beams. I thought about that. As a result, it was found that by doing this, the lid was supported by the beams, so that the lid was almost prevented from bending. However, this method still had some drawbacks. The disadvantage is that this method requires a large number of beams to be lined up on the same plane, but arranging the beams on the same plane at a high position such as the top of the side wall of a tank requires complicated work. what you need and
When a beam becomes long and large, it becomes necessary to support the beam with pillars, but in that case, as many pillars as there are beams are required, it becomes necessary to erect a considerable number of pillars.

This inventor thought to prevent the above-mentioned drawbacks. Then, a smaller number of beams than the upper beam are provided on the lower side of the beam, and the lower beam (hereinafter referred to as the lower beam) intersects the upper beam (hereinafter referred to as the upper beam), and at the intersection, the upper beam crosses the lower beam. I tried to support it. As a result, it was found that by doing this, the upper beams are lined up in the same plane simply by arranging the upper beams on the lower beams, so it is easy to arrange them in the same plane. Also, since the upper beam is supported by the lower beam, it is possible to avoid installing columns at all.
It turned out that if we were to install one, we would only need to install the same number of pillars as the lower beams. This idea was made based on such ideas and knowledge.

In other words, this idea is based on a tank whose lid is made by arranging a number of right-angled unit plates along the upper opening surface of the side wall, and an upper beam and a lower beam are provided below the lid. A plurality of lower beams are arranged parallel to each other at intervals approximately equal to the distance between the two sides, fewer beams than the upper beam are arranged to intersect with the upper beam, the upper beam is supported by the lower beam at the intersection, and the unit plate is It is a tank with a lid and two opposing sides placed on top beams.

A tank equipped with a lid according to this invention will be explained as follows based on the drawings. FIG. 1 is a partially cutaway perspective view showing an example of a tank equipped with a lid according to this invention. FIGS. 2 to 5 are sectional views showing another example of a tank equipped with a lid according to this invention. FIG. 6 is a partially cutaway perspective view showing still another example of a tank equipped with a lid according to this invention.

In FIG. 1, right-angled rectangular unit plates 1a to 1e are arranged along the upper opening surface of the side wall of the tank to form a lid. In this tank, an upper beam 2 and a lower beam 3 are provided below the lid. The upper beam 2 is connected to two opposing sides 1 of the unit plates 1a to 1e.
A plurality of pieces are arranged parallel to each other with a center spacing that is approximately equal to the distance between pieces 1 and 12. A smaller number of lower beams 3 than upper beams 2 are arranged to intersect with the upper beams 2. At the intersection, the upper beam 2 is supported by the lower beam 3. Two opposing sides 11 and 12 of the unit plates 1a to 1e are placed on the upper beam 2. What is constructed in this way is a tank equipped with a lid according to this invention.

In the above-mentioned tank, the unit plate used is one in which an upright joint edge 14 that stands upright with respect to the substrate 13 is provided on the periphery of the substrate 13 having a rectangular rectangular shape. The substrate 13 may bulge out to the side opposite to the protruding side of the upright joining edge 14, as shown for the unit plates 1b to 1e. This unit plate is made of metal (for example iron) or reinforced synthetic resin (for example glass fiber reinforced polyester resin). It is desirable that the unit plates have their upright joint edges 14 facing downward and their tips in contact with the upper surface of the upper beam 2.

As the upper beam 2, it is convenient to use a section steel. In this case, it is appropriate to have the flat side of the section steel facing upward. The upper beam 2 may be joined in the middle. When jointed, it is desirable that the joint be located on the intersection with the lower beam 3. It is preferable that contact plates 21 are welded to both ends of the upper beam 2, abutted against the side walls of the tank, and fixed with fixing devices such as bolts. Note that when the side wall is assembled from unit plates, it is desirable that the abutting plate 21 be fixed across the joint between two unit plates.

Shaped steel can also be used as the lower beam 3.
As the lower beam 3, it is appropriate to use one whose deflection is the same or less than that of the upper beam 2, that is, one whose second moment of inertia is the same or larger. The lower beams 3 can be arranged at wider intervals than the upper beams 2. Further, the lower beam 3 can be supported by pillars 4 in some places. The lower beam 3 may be joined in the middle. If spliced, the seam is preferably located on the post 4. It is preferable that a contact plate 31 is welded to both ends of the lower beam 3, and that this is brought into contact with the side wall of the tank and fixed with a fixture such as a bolt. Note that when the side wall is assembled from unit plates, it is desirable that the abutment plate 31 is also fixed across the joint between the two unit plates. Moreover, at the intersection of the lower beam 3 and the upper beam 2, a spacer may be inserted between them.

The side walls and bottom of the tank may be assembled from unit plates of the same or different type as the lid, or may be made of a single plate. The bottom may also be concrete.

This invention includes, in addition to the embodiments shown above, some modifications thereof. below,
A modified embodiment will be shown, and the modified points will be mainly explained.

In FIG. 2, the upper beam 2 and the upright joint edge 14 are connected using an angled connector 22. In FIG. Moreover, the upper beam 2 and the lower beam 3 are connected to the angle-shaped connecting tool 32.
Connected using The lower beam 3 is joined in the middle, but the upper end of the column 4 is interposed between the joints. Furthermore, the space between the lower beam 3 and the side wall of the tank is supported obliquely by a support 5.

In FIG. 3, the lid as a whole is slanted toward both side edges. As one means of tilting the lid, a spacer 6 is inserted between the upper beam 2 and the upright joint edge 14. The spacer 6 used has a height that increases as it approaches the center of the tank. In addition, as another means of tilting the lid, an upright joining edge 1 along the two opposing sides 11 and 12 may be used.
Unit plates 1f, 1g, and 1h having different heights are used. The height of the upright joint edge of the unit plate 1g is the same as the height of the upright joint edge of the unit plate 1f, and the height of the upright joint edge of the unit plate 1h is the same as the height of the unit plate 1g. It is said to be at the same height as the lower upright joint edge. A stay 7 is provided inside the tank in parallel with the lower beam 3 to support the opposing side walls.

In FIG. 4, upper beams 2 of different heights are used to tilt the lid as in FIG. 3. That is, the upper beam 2 used is one that increases in height as it approaches the center of the tank.

In FIG. 5, a part of the lid is composed of unit plates 1i, 1j, and 1k each including a heat insulating material 15. As shown in FIG. The entire lid may be composed of such unit plates. Furthermore, a partition wall 8 is provided inside the tank. The upper part of the partition wall 8 is interposed between the joints of the lower beam 3.

In FIG. 6, a unit plate 1l with an upright joining edge 14 facing upward is used at the peripheral edge of the lid. In this unit plate, the upright joint edges 14 are present only along three sides of the substrate 13, and the sides without the upright joint edges constitute the periphery of the lid. In addition, as shown in the figure, when the end of the lower beam 3 is brought into contact with the partition wall 8, the end may be brought into contact with the substrate 13 of one partition wall constituent unit plate, and two partition wall configurations are possible. It may be abutted across the base plate 13 of the unit plate, or may be abutted against the upright joint edge 14 of the partition wall constituent unit plate.

A tank equipped with a lid according to this invention is a tank whose lid is formed by arranging a large number of right-angled unit plates along the upper opening surface of the side wall, and an upper beam and a lower beam are provided below the lid, and the upper beam is Since a plurality of pieces are arranged parallel to each other at intervals approximately equal to the distance between the two opposing sides of the unit plate, it is convenient to place the two opposing sides of the unit plate on the upper beam. Then, two opposing unit plates
Since the sides are placed on the upper beam, the lid is prevented from bending.

In addition, fewer lower beams than the upper beams are arranged so as to intersect with the upper beams, and the upper beams are supported by the lower beams at the intersection points, so it is easy to arrange the upper beams on the same horizontal plane (or inclined plane). Furthermore, since the upper beam is supported by the lower beam, there is no need to support the upper beam by columns. Moreover, since there are fewer lower beams than upper beams, even if the lower beams are supported by columns, the number of columns can be reduced. This invention has a number of advantages as mentioned above.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing an example of a tank equipped with a lid of this invention, and FIGS. 2 to 5 are
FIG. 6 is a sectional view showing another example of a tank equipped with a lid of this invention, and a partially cutaway perspective view showing still another example of a tank equipped with a lid of this invention. In each figure, 1a to 1l are unit plates, 2 is an upper beam, 3 is a lower beam, 4 is a column, 5 is a support, 6 is a spacer, 7 is a stay, 8 is a partition wall, 11 and 1
2 is two opposing sides, 13 is a substrate, 14 is an upright joining edge, 15 is a heat insulating material, 21 is an abutment plate, 22 is a connector, 31 is an abutment plate, and 32 is a connector.

Claims (1)

[Scope of utility model registration request] In a tank whose lid is made by arranging many right-angled unit plates along the upper opening surface of the side wall, an upper beam and a lower beam are provided below the lid, and the upper beam is the distance between the two opposing sides of the unit plates. A plurality of lower beams are arranged parallel to each other at approximately equal intervals, fewer beams than the upper beam are arranged to intersect with the upper beam, the upper beam is supported by the lower beam at the intersection, and the two opposite sides of the unit plate are A tank with a lid that is placed on a beam.