JP4261018B2 - How to install the flexible tank - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flexible tank installation method that makes it possible to install a flexible tank having a size that substantially fills an idle space, such as an underground space of a building, drawn from the surroundings.
[0002]
[Prior art]
There are many idle spaces such as underground spaces in office buildings. In order to use the idle space effectively, we considered installing a tank in the space. The tank can be used in various ways such as storing water, storing secondary battery electrolyte, chemicals, sewage, or various gases.
[0003]
However, the installation of a rigid tank in a space in a building where the area of the entrance is likely to be constrained is due to restrictions on entry at the entrance, reduced sealing reliability when assembling after divided loading, securing a working space for assembly, etc. This is not easy.
[0004]
In contrast, a single-piece flexible tank made of rubber sheets, rubberized cloth, plastic films, plastic / metal composite films, etc. can be folded into the installation space and is subject to installation restrictions even if the entrance is narrow. hard. In addition, there is no seam and the reliability of preventing liquid leakage is high.
[0005]
Therefore, we considered installing this flexible tank.
[0006]
[Problems to be solved by the invention]
There are two types of flexible tanks: a self-supporting type and a non-self-supporting type that is supported by surrounding structures and maintains a standing state.
[0007]
Of these, the former self-supporting flexible tank must have a considerably small installation area ratio in order to ensure self-supporting stability. For this reason, if this is installed in an underground space or the like in a building, the upper space of the space remains empty and cannot be used effectively.
[0008]
In addition, it is conceivable to increase the use efficiency of the space by arranging self-supporting flexible tanks in multiple stages, but if this method is adopted, it is necessary to provide a strong base and shelves that stably support the tank in the space, Expenses and time and effort of installation increase.
[0009]
On the other hand, the non-self-supporting flexible tank has no restriction on the height, and can effectively use the space in a size that almost fills the space near the ceiling.
[0010]
However, it has not been conventionally performed to install a high-length non-self-supporting flexible tank in a space surrounded by a side wall or the like. There is a reason for that.
[0011]
That is, since the flexible tank can be folded, it is possible to easily carry out the work until the tank is folded and carried into the installation space and then spread on the floor surface. However, the problem is subsequent work.
[0012]
The tank spread on the floor is usually inflated by applying an internal pressure. At this time, the peripheral wall of the tank is pressed against the side wall or the like surrounding the internal pressure by the internal pressure, and friction is generated to prevent the tank from rising. Non-self-supporting flexible tanks have a large weight exceeding 300 kg, and a large internal pressure is required when trying to raise such a tank. The tank does not stand up properly.
[0013]
In order to install a non-self-supporting tank in an underground space, the above problems must be solved.
[0014]
The present invention intends to provide a method for installing a non-self-supporting tank that meets the demand.
[0015]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, in the installation space having the surrounding wall of the floor, the ceiling and the outer periphery of the tank, the installation space having the bottom wall and the top wall and the peripheral wall supported by the enclosure wall is almost the same. Fold a flexible tank of size and carry it in, spread the tank on the floor of the installation space, and hang one end of the wire suspended from the wire guide attached to the ceiling of the installation space or the surrounding wall of the ceiling. The wires are connected to the top of the wire and distributed in locations where the suspension load is distributed, and the wires are gathered in one place along the ceiling. A method of pulling a wire that is gathered while allowing alternative fluid to flow in naturally or forcibly, lifting the wire connecting part of the tank with that wire, and expanding the tank while raising the tank in the installation space Take. Note that the suspension load is dispersed in order to prevent adverse effects on the strength and soundness of the tank.
[0016]
The enclosure wall here refers to a wall that supports the peripheral wall of the tank that has been raised from the outside, and that can withstand the internal pressure of the tank and maintain the shape of the tank, such as a side wall of the building itself or a partition wall separately provided in the installation space, etc. Point to.
[0017]
[Action]
When the upper part of the tank (near the upper end of the top wall or peripheral wall) is lifted with a wire, it is not necessary to apply internal pressure to the tank, and the tank is not pressed against the surrounding enclosure wall by the internal pressure. In addition, even if a slight internal pressure is introduced while lifting the tank with a wire, the internal pressure that swells the tank is sufficient, so the pressure applied to the enclosure wall by the internal pressure can be reduced, and the movement resistance due to friction is reduced. The tank stands up smoothly.
[0018]
Therefore, according to the method of the present invention, it is possible to effectively use the idle space by providing the non-self-supporting flexible tank in the underground space or the like.
[0019]
The tank that has been raised is supported by an enclosure wall to maintain an upright state, and in this state, a fluid storage is taken in and out.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an example of a non-self-supporting flexible tank installed by the method of the present invention.
[0021]
The tank 1 is formed of a rubber sheet, a rubberized cloth, a plastic sheet, a plastic laminated cloth, a laminated sheet of plastic and metal foil, and has a bottom wall 1a, a peripheral wall 1b, and a top wall 1c. ing. In addition, it has a fluid entrance / exit (not shown) at an appropriate position. The illustrated tank is a square tank, but the shape is not particularly limited, and a cylindrical tank is also conceivable.
[0022]
A hook hook 2 made of a belt, a string, or the like is attached to the entire periphery of the top wall side peripheral portion of the tank 1 with an appropriate interval.
[0023]
The tank 1 is flattened by its own weight when the doorway is opened. The flat tank is folded so that it can be easily opened (winding is also regarded as folding here), carried to the site, and inserted into the installation space 3 shown in FIGS. 2 and 3 from the entrance. The installation space 3 in FIG. 2 is surrounded on all sides by the floor surface 3a, the ceiling 3b, and the side walls 3c shown in FIG.
[0024]
A wire guide 5 as shown in FIG. 4 is attached to the ceiling 3b of the space 3 in advance. Also, a hanger 6 as shown in FIG. 5 is attached in advance to the side wall 3c. The required number of wire guides 5 and hangers 6 are provided at designated positions corresponding to the hooks 2. The wire guide 5 is attached to the ceiling 3b and the side wall 3c around the ceiling, and the hanger 6 is provided in the vicinity of the ceiling 3b.
[0025]
Furthermore, the wire 7 is passed through the guide groove 5a of each wire guide 5 and one end of the wire 7 is hung near the floor, the other end of the wire 7 is transmitted along the ceiling 3b, and the hole of the assembly 8 (FIG. 2). And gather in one place. The other end of the wire is led to the position of the inlet 4 in order to perform the pulling operation without any trouble.
[0026]
The tank 1 is preferably a size that fits within the installation space 3 or is slightly larger than the installation space 3 (width, depth, and height are both larger than the size of the space by about 10% or less. When the tank 1 is folded and carried into the installation space 3, it is spread on the floor 3a with the top wall 1c facing up.
[0027]
Thereafter, one end of the wire 7 is hung on the hook hook 2 provided on the peripheral edge on the top wall side of the tank using the hook 9 or the like, and when the above preparation is completed, the other end of the wire 7 suitable for the pulley 10 is connected to the winch or the like. Pull up the tank 1 to lift it up. At this time, in order to prevent the bottom wall of the tank 1 from being lifted, the tank 1 introduces air or a fluid instead of it by opening the entrance / exit of the stored items (or opening the air vent if there is an air vent). Moreover, the tension | tensile_strength of each wire is adjusted as needed so that the whole region of the top wall 1c may be lifted equally. The bottom wall of the tank 1 may be fixed to the floor surface with an adhesive or the like in advance.
[0028]
When the lifting is completed, the hook hook 2 is replaced with a hanger 6 attached to the side wall (this is done by an operator entering the gap with the ceiling), and then internal pressure such as air pressure is introduced into the tank 1 Tank 1 is inflated.
[0029]
In order to shorten the work time, when the upper part of the tank 1 is lifted by the wire 7, low-pressure air or the like is introduced into the tank, and the tank 1 is inflated simultaneously with the lifting.
[0030]
When the tank is inflated by applying internal pressure, airtightness can be checked at the same time as the tank is started, and wrinkles of the tank can be removed. However, the purpose cannot be sufficiently achieved by one expansion. Therefore, preferably, after this, if the inside of the tank is monitored with a monitoring camera or a scope, and there are inconvenient wrinkles or the like, decompression and repressurization are performed to eliminate inconvenient portions. For this wrinkle removal operation, it is also effective to move the wire 7 up and down in addition to pressurizing and depressurizing the tank.
[0031]
If there is no hindrance, the wire 7 can be left as it is, and the lifting state of the tank 1 can be held by the wire 7. In this case, the hanger 6 is unnecessary.
[0032]
Also, before carrying the tank, placing a sheet with good lubricity on the floor surface of the installation space 3 or applying a powdered lubricant reduces friction with the floor surface, making it easier to expand the tank. Become. The friction between the peripheral wall and the side wall of the tank can be softened by using a lubricant, which is effective when the tank is lifted while forcibly injecting fluid.
[0033]
FIG. 6 employs a pulley as shown in FIG. 7 as the wire guide 5, the pulley is attached to the ceiling 3 b, and a hook 9 at the tip of the wire 7 suspended from the pulley is provided on the top wall 1 c of the tank 1. An example in which a lifting force is applied to the top wall of the tank 1 by hanging on the hook hook 11 is shown.
[0034]
Thus, the tank 1 may be raised by lifting the top wall of the tank or by lifting both the top wall and the peripheral wall of the tank at the same time for a more balanced lifting.
[0035]
Moreover, the wire guide 5 should just be what can change the direction of the wire 7 attached to the ceiling downward, The disk 5a with a guide hole as shown in FIG. 7, and this disk and a disk attachment surface It may be composed of a spacer 5b that creates a wire passage between them, or may be formed by superimposing both of them together. These wire guides 5 may be removed after being used, or may be left as they are if there is no problem.
[0036]
【The invention's effect】
As described above, in the method of the present invention, the upper part of the flexible tank spread on the floor surface is lifted with a wire, so that the tank does not tightly adhere to the surrounding wall with internal pressure, and the rise is smooth and reliable. Rise is guaranteed.
[0037]
Therefore, it is possible to install a non-independent flexible tank that can effectively use the space up to the ceiling in a narrow entrance space such as an underground space, and the idle space can be effectively utilized.
[Brief description of the drawings]
FIG. 1A is a perspective view showing an example of a non-self-supporting tank installed by the method of the present invention. FIG. 1B is an enlarged perspective view of a suspension mounting portion of the tank of the same. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. FIG. 4 is a perspective view showing an example of a wire guide. FIG. 5 is a perspective view showing an example of a hanging bracket. FIG. 7A is a perspective view showing another example of a wire guide. FIG. 7B is a cross-sectional view of the same guide.
DESCRIPTION OF SYMBOLS 1 Non-self-supporting flexible tank 2 Hook hook 3 Installation space 3a Floor 3b Ceiling 3c Side wall 4 Entrance 5 Wire guide 6 Hanger 7 Wire 8 Collecting tool 9 Hook 10 Pulley

Claims (1)

A flexible tank having the same dimensions as the installation space having the bottom wall and the top wall and the peripheral wall supported by the enclosure wall is folded into the installation space having the floor, the ceiling and the outer wall of the tank, and the tank is loaded. One end of the wire that is spread on the floor of the installation space and suspended from the wire guide attached to the ceiling of the installation space or the surrounding wall of the ceiling is connected to the upper part of the tank, and the suspension load is distributed to the wire. A number of wires distributed at different positions, the other end of each wire passes through the ceiling and gathers in one place, and then the air or the alternative fluid is gathered into the tank while naturally or forcedly flowing into the tank. The tank is lifted by the wire to raise the tank in the installation space, and then the tank is inflated by introducing internal pressure to the tank. Installation method of Burutanku.

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