JPH0133517Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a unit panel used when constructing a prefabricated tank such as a water receiving tank or an elevated water tank.

(Prior art and its problems) Conventionally, when constructing a prefabricated tank, the vicinity of the base of the flange that protrudes at a uniform height around the periphery is left as a unit panel, and the inside part is shallowly curved in the direction in which the flange protrudes. It is known to use panels with bulges.

In recent years, the long side of the above unit panel is approximately 1.5 to the short side.
3.0x rectangular unit panels have come to be used due to their superior workability, but in this case, when assembling the tank, the part located at the bottom of the tank will be subject to high internal pressure. There is a need for a unit panel that can withstand the pressure inside the tank.

(Means for Solving the Problems) The present invention has been devised in view of the above-mentioned conventional points, and includes providing a flange that protrudes at a uniform height around the periphery, and leaving the vicinity of the base of this flange on the inner side. In a long panel with a shallow curved protrusion in the protruding direction of the flange to form a bulge,
The top of the bulge is eccentric in the longitudinal direction from the center of the long panel, and the radius of curvature from one longitudinal edge of the bulge to the top is made larger than the radius of curvature from the top to the other periphery. To provide a unit panel whose top part is eccentrically located toward the bottom side of the tank when assembling the tank, which can withstand pressure inside the tank at low cost without increasing the amount of material used, and which has little deformation.

(Example) Hereinafter, the specific structure of the present invention will be explained based on the example shown in FIGS. 1 to 3.

Fig. 1 is a plan view showing a unit panel of the present invention, Fig. 2 is a cross-sectional view taken from the side shown in Fig. 1, and Fig. 3 is a vertical sectional view of a tank constructed by connecting the unit panels shown in Fig. 1. .

In Figures 1 and 2, 1 is a flange formed protruding at a uniform height around a rectangle with a long side of about 2 m and a short side of about 1 m, and 2 is a flat base continuous at right angles to the flange 1. , 3 is a spherical bulge formed by shallowly curving from the base in the same direction as the flange 1. The highest protruding part of the bulge 3, that is, the top A, is eccentric from the center of the panel, and the bulge 3 is curved with a large radius of curvature R1 from one longitudinal edge to the top A. , from the top A to the other peripheral edge is curved with a radius of curvature R2 smaller than R1.

Reference numeral 4 denotes a flat part for attaching piping such as an inlet pipe or a drain pipe, which is formed by cutting out the bulging part 3, but the flat part 4 for attaching piping does not necessarily need to be provided.

Further, the bulging portion 3 may partially have some unevenness or may have a partially flat portion.

As shown in Figure 3, the unit panel configured as described above is assembled into a tank by connecting the flanges 1 of adjacent unit panels so that the top part A is located eccentrically toward the bottom of the tank. .

In addition, in FIG. 3, X is a unit panel constituting the ceiling, and Y is a unit panel constituting the bottom wall.

(Operations and Effects of the Invention) As described above, the present invention makes the top of the bulging part eccentric in the longitudinal direction from the center of the long panel, and
The radius of curvature from one peripheral edge to the top in the longitudinal direction of the bulge is made larger than the radius of curvature from the top to the other peripheral edge, so that the top is eccentrically located toward the bottom of the tank when the tank is assembled. from,
The upper part of the unit panel has a bulge with a radius of curvature large enough to withstand small internal pressure, and the bulge part has a radius of curvature large enough to withstand small internal pressure. The small bulge resists the tank internal pressure, and the deformation of the unit panel due to the internal pressure changes gradually in the height direction, dispersing stress against the tank internal pressure and increasing pressure resistance. It has the effect of improving Therefore, compared to a conventional long panel in which a bulge is formed with a uniform radius of curvature in the longitudinal direction, the thickness of the unit panel can be reduced, and the amount of material used can be reduced. It has the advantage of being able to withstand internal pressure at low cost without increasing pressure.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a unit panel of the present invention, Fig. 2 is a cross-sectional view taken from the side shown in Fig. 1, and Fig. 3 is a vertical sectional view of a tank constructed by connecting the unit panels shown in Fig. 1. . In the figure, 1 is a flange, 2 is a base, 3 is a bulge, and A is the top of the bulge.

Claims (1)

[Scope of utility model registration request] In a long panel that is provided with a flange that protrudes at a uniform height around the periphery, and leaves the vicinity of the base of this flange and has the inside thereof shallowly curved and protruded in the direction in which the flange protrudes, the bulge is formed into a bulge. The top of the tank is eccentrically centered from the center of the long panel in the longitudinal direction, and the radius of curvature from one longitudinal edge of the bulge to the top is larger than the radius of curvature from the top to the other edge of the tank. A unit panel for tank assembly, characterized in that the top of the panel is positioned eccentrically toward the bottom of the tank during assembly.