JPH08133384A - Cylindrical liquid storage tank - Google Patents

Abstract

PURPOSE: To simplify the construction work and increase the strength, by arranging columns in the peripheral direction at every appropriate distance and fixing metallic panels bent to form an arcuate shape between respective columns. CONSTITUTION: The side wall 2 of a cylindrical liquid storage tank 1 is constituted of stainless steel columns 4 erected at every equal distance and a plurality of stainless steel panels 5 vertically arranged therebetween. A stainless steel conical upper wall 7 is provided at the upper end of side wall 2 and a bottom wall is provided at the lower end of side wall 2. The columns 4 are shaped to form square pipes as a whole and the full height thereof is almost same with the height of side wall 2. A pair of angle members 4a are set to butt against these ends and fixed by welding 4b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical liquid storage tank.

[0002]

2. Description of the Related Art For example, as a storage tank for tap water,
A concrete tank is known. This concrete tank is usually formed of reinforced concrete into a cylindrical shape.

[0003]

However, in the case of a concrete tank, not only a large number of days are required for direct construction, but also it cannot be used immediately after the main body construction is completed. This is because it is necessary to store and abandon water several times to remove the eluate from the concrete in the tank body. For this reason, the construction period becomes long, resulting in a high construction cost. In addition, when used for a long period of time, there are problems that algae are likely to grow in the tank and that it takes time to manage and repair cracks. In addition, the appearance was difficult to harmonize with the surrounding landscape.

The present invention is to solve the above-mentioned problems, and an object thereof is to provide a side wall of a cylindrical liquid storage tank having features such as simplification of construction work and improvement of strength. Especially.

[0005]

In order to solve the above problems, in the invention according to claim 1, in the cylindrical liquid storage tank, the columns are arranged in the circumferential direction at appropriate intervals, and the columns are arranged between the columns. A metal panel curved in an arc is fixed.

According to the second aspect of the present invention, the panel and the column are made of stainless steel. According to the invention of claim 3,
Ribs for reinforcement are formed on the panel.

[0007]

Therefore, according to the first aspect of the present invention, the number of parts to be assembled is reduced, the side wall assembling work can be simplified, and the strength of the side wall can be improved.

According to the second aspect of the present invention, it is possible to prevent corrosion and the like and prolong the service life. According to the invention of claim 3, the strength of the panel and the side wall can be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the side wall 2 of the cylindrical liquid storage tank 1 is provided with stainless steel columns 4 standing upright at equal intervals and a plurality of stainless steel columns arranged vertically between them. And the panel 5 of. On the upper end of the side wall 2, a stainless steel cone-shaped upper wall 7 is provided, and on the lower end of the side wall 2, a bottom wall (not shown) is provided.

As shown in FIG. 4, the column 4 is formed in the shape of a square pipe as a whole, and is formed so that its overall height is substantially the same as that of the side wall 2. Then, the pair of angle members 4a are butted against each other at their edges to weld 4b.
It is fixed by. In addition, as shown in FIG.
Is composed of a plurality of support pieces vertically connected by a joint 22. The joint 22 and the column 4 are fixed by welding. Reference numeral 24 represents a temporary fixing bolt.

As shown in FIGS. 1 to 3, the panel 5 is formed by bending a quadrangular plate body into an arc shape according to the shape of the circumference of the side wall 2. Further, two ribs 6 are bent and formed on the panel 5 so as to project along the outer peripheral side of the panel 5. By forming the ribs 6 on the panel 5, the strength of the panel 5 is improved and the thickness of the panel 5 can be made thinner than when the ribs 6 are not formed. The panel 5 is fixed to the side surface of the support column 4 by welding at its end, and the vertically adjacent panels 5 are fixed by welding at the upper and lower ends thereof.

As shown in FIGS. 5 and 6, the size of the tank can be set freely by appropriately selecting the number and curvature of the panels 5 and changing the number of columns 4. Rich in.

In addition, since the side wall 2 is entirely made of stainless steel and has high strength and excellent corrosion resistance, the life of the tank 1 can be made semi-permanent.
In addition, there is no eluate and simple washing is sufficient after completion. Therefore, the construction period can be shortened, and as a result, the construction cost can be reduced. Furthermore, rust and algae are less likely to be generated during use, which is advantageous for safety, management, and repair.

Moreover, in the tank 1 of this embodiment, since the columns 4 are arranged at equal intervals, the strength of the tank 1 as a whole increases, and particularly the strength in the buckling direction increases. In addition, since it is not necessary to join the panels 5 to each other in the circumferential direction of the panel 5, and the end portion of the panel 5 is welded to the side surface of the column 4 having a relatively wide surface, accuracy is not so required, Production becomes easy. By the way, as shown in FIG. 8, a plurality of panels 53 are used without using the columns 4.
In the tank 51 constructed by welding and connecting the panels in the vertical and horizontal directions, a guide member and a fixing member for determining the position when welding each panel 53 so that the side wall 52 has a flat cross section. Since it is necessary to attach the tool to the panel 53, there is a problem that the assembly work takes time. In addition, there are many welding points, and the strength of the side wall 52 may be insufficient due to the displacement of the mounting position during welding.

By forming the ribs 6 on the panel 5, the strength of the panel 5 is improved and the thickness of the panel 5 can be reduced. Then, as in the embodiment, if the butt structure of the angle members 4a is adopted as the support column 4, the angle members 4a are previously welded and fixed to both ends of the panel 5 in the factory, and the angle members 4a are set at the construction site. By butt welding the doshi, the construction can be performed easily.

The present invention is not limited to the above embodiment, but can be embodied as follows. (1) As shown in FIG. 9, two square pipes 4c are used as the columns 4. The square pipe 4c is welded 4b at its facing portion.

(2) As shown in FIG. 10, two channel members 4d are used as the columns 4, and their abutting portions are fixed by welding 4b. (3) As shown in FIG. 11, two square pipes 4e each having a slanted side are used as the columns 4, and they are fixed by welding 4b at their contact portions so that they form a trapezoid.

(4) As shown in FIG. 12, two plates 4f are used as the columns 4, and they are fixed by welding 4b.

[0019]

As described in detail above, according to the invention of claim 1, the work of assembling the side wall can be simplified and the strength of the side wall can be improved.

According to the invention of claim 2, the life can be made semi-permanent. According to the invention of claim 3, the strength of the side wall can be improved and the thickness of the panel can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment embodying the present invention.

FIG. 2 is a cutaway perspective view showing a panel and a column in FIG.

FIG. 3 is a perspective view showing a panel.

FIG. 4 is a top view of a panel and a column.

FIG. 5 is a schematic diagram showing an arrangement of columns.

FIG. 6 is a schematic diagram showing an arrangement of columns.

FIG. 7 is a diagram showing connection of columns.

FIG. 8 is a view showing a cylindrical liquid storage tank that does not use columns.

FIG. 9 is a view showing another example of the support column.

FIG. 10 is a view showing another example of the support column.

FIG. 11 is a view showing another example of the support column.

FIG. 12 is a view showing another example of the support column.

[Explanation of symbols]

1 ... Cylindrical liquid storage tank, 2 ... Side wall, 4 ... Strut, 5 ...
Panel, 6 ... Ribs.

Claims (3)

[Claims] 1. A cylindrical liquid storage tank characterized in that, in a cylindrical liquid storage tank, columns are arranged in the circumferential direction at appropriate intervals, and arcuately curved metal panels are fixed between the columns. tank. 2. The cylindrical liquid storage tank according to claim 1, wherein the panel and the column are made of stainless steel. 3. The cylindrical liquid storage tank according to claim 1, wherein a reinforcing rib is formed on the panel.