JPS63172092A - Earthquake-proof tank - Google Patents

Abstract

PURPOSE:To prevent the overflow of a contained liquid out of a tank even at the time of an earthquake by providing a tank body for storing said containing liquid and providing a damping board in said tank body. CONSTITUTION:Au earthquake-proof tank 1 has a tank body 2 having a rectangular plan form, and damping boards 3 made of a mesh type material or a porous material having non-combustibility are provided in two horizontal directions mutually intersecting at a right angle, inside the tank body 2. At the time of an earthquake, when the tank body 2 shakes, the contained liquid 5 in the tank body 2 also shakes in such a way that the contained liquid 5 passes through the damping boards 3. And, as the contained liquid 5 passes through the damping boards 3, it is subjected to the resistance force of the damping boards 3, and part of the shaking energy of the contained liquid 5 is consumed as a resistance energy.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an expandable tank capable of suppressing fluctuations of liquid in the tank during an earthquake.

(b) 1. Problems to be solved by the invention In tanks for storing oil, etc., during an earthquake, the liquid inside the tank may shake greatly and overflow outside the tank, so some effective countermeasures are needed. was required.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, it is an object of the present invention to provide an expansion tank that can effectively suppress fluctuations of the liquid contained therein even during an earthquake.

(C) Means for solving the zero problem, that is, the present invention provides a tank body (5) for storing the liquid content (5).
2), and a damping plate (3) is installed inside the tank body (2).

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings. r under breath (di
The same applies to the column ``, action''.

(d) 6 Effects With the above-described configuration, the present invention acts so that the vibrations that occur in the liquid content (5) during an earthquake are attenuated by the damping plate (3).

(e), Example Embodiments of the present invention will now be described based on the drawings.

FIG. 1 is a plan view showing one embodiment of a stationary tank according to the present invention, FIG. 2 is a front sectional view of FIG. 1, FIG. 3 is a plan view showing another embodiment of the present invention, and FIG. is a front sectional view of FIG. 3;

As shown in FIG. 1, the stationary tank 1 has a tank body 2 with a rectangular planar shape, and inside the tank body 2 there is a damping material made of a nonflammable mesh material or a porous material. The plates 3 are installed so as to intersect in two horizontal directions that are perpendicular to each other. As shown in Fig. 2, the height H of the damping plate 3 is low at the center of the tank body 2 and high at the periphery. is stored.

Since the stationary tank 1 has the above configuration, when the tank body 2 shakes during an earthquake, the tank body 2
As shown in FIG. 2, the liquid content 5 inside also oscillates in such a manner that the liquid content 5 passes through the damping plate 3. However, when the content liquid 5 passes through the damping plate 3, it receives a resistance force from the damping plate 3, and a part of the swinging energy of the content liquid 5 is consumed as the resistance energy.

As a result, the fluctuation of the content liquid 5 is gradually attenuated, and overflowing from the inside of the tank body 2 to the outside is prevented.

In addition, although the above-mentioned example described the case where the shape of the tank main body 2 has a rectangular planar shape, the shape of the tank main body 2 is not limited to a rectangle but can be any shape.
As shown in the figures and FIG. 4, it is of course possible to form it into a circular planar shape.

Furthermore, the manner in which the damping plate 3 is installed is arbitrary, and in addition to being installed in a direction perpendicular to the horizontal direction shown in FIGS. 1 and 3, it is also possible to install it radially from the center CT of the tank body 2. .

(f) 0 As described in detail, according to the present invention, the tank body 2 for storing the liquid content 5 is provided, and the damping plate 3 is installed inside the tank body 2, so that earthquakes occur. The vibrations that occur in the content liquid 5 at times are effectively damped by the damping plate 3, and the content liquid 5
It is possible to prevent the occurrence of a situation where the water overflows out of the tank.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of a stationary tank according to the present invention, FIG. 2 is a front sectional view of FIG. 1, FIG. 3 is a plan view showing another embodiment of the present invention, and FIG. is a front sectional view of FIG. 1. Installation tank 2...Tank body 3...Attenuation plate 5...Content liquid Applicant Mitsui Construction Co., Ltd. Agent Patent attorney Phase 1) Extension Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] A vibration damping tank comprising a tank body for storing a liquid content, and a damping plate installed inside the tank body.