JP2603156Y2 - Bottom plate insulation structure of the assembly type liquid storage tank - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat retaining structure for an assembling type liquid storage tank, and more particularly to a heat retaining structure for a bottom plate portion of a heat storage tank, a water receiving tank and the like.

[0002]

2. Description of the Related Art There is known a so-called assembling type liquid storage tank in which unit panels each having a connection flange formed on four sides of a pressure receiving surface are sequentially connected at an installation position to assemble a liquid storage tank. In this case, it is necessary to provide a heat retaining function to the liquid storage tank in a cold region or the like, and a heat retaining material having a skin is generally adhered from the outside of the unit panel.

However, if a heat insulating material is previously adhered to the outside of the unit panel, it is difficult to handle at the time of assembling, and the heat insulating material is often destroyed or the adhesive is peeled off, so that the heat insulating effect may be incomplete. .

In view of the above, there has been proposed a bottom plate heat insulating structure in which a heat insulating material can be applied to the bottom plate after forming the bottom plate by connecting the unit panels (for example, Japanese Unexamined Patent Publication No. Sho 61).
-244784).

[0005] This is a heat retaining structure for a bottom plate of an assembling type liquid storage tank in which unit panels each having a flange formed on four sides of a pressure receiving surface are interconnected to the flange, and the head of the flange is placed on a gantry. Forming a step in the shape of a notch around the heat insulating material having a skin, abutting the reinforcing material extending from the stand while inserting the heat insulating material from the space surrounded by the stand,
This is hermetically fixed.

[0006]

However, in such a conventional heat insulating structure, post-installation of the heat insulating material is possible, but a step is formed by forming a notch around the heat insulating material, and this is used as a pedestal. However, there is a problem that a space that is not filled with the heat insulating material remains around the flange, so that a sufficient heat insulating effect cannot be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the conventional heat retaining structure and to provide a bottom plate heat retaining structure for an assembling liquid storage tank which can provide a sufficient heat insulating effect while enabling post-installation of a heat retaining material. Is to do.

[0008]

In order to achieve the above-mentioned object, the present invention is directed to a prefabricated storage unit in which unit panels each having a joining flange formed on four sides of a pressure receiving surface are connected to each other with the joining flanges facing outward. In the bottom plate heat insulating structure of the liquid tank, the heat insulating structure is attached to the bottom plate by assembling the liquid tank with four bolts having ends fixed at four corners of the bottom panel unit panel to different sides of the joint flange with first bolts. A supporting member having the same, a substantially bar-shaped first heat insulating material is arranged along the joining flange while placing an end portion on the supporting member, and the periphery of the second heat insulating material having a surface material is provided. The first heat insulating material is brought into contact with the surface material and the support member, and this is fastened to the screw portion with a second bolt to form a substantially one-layer bottom plate heat insulating structure. At the same time, removal of the heat retaining structure from the bottom plate Characterized in that said at second ones to release the engagement of a bolt made to eliminate the formation of the bottom plate thermal insulation structure that extracts said first heat insulating material after spontaneous separation of the second insulation material.

[0009]

According to the present invention, a support member having a screw portion substantially at the center at each of the four corners of the unit panel is installed with its ends fixed to one side of the joining flange. A substantially heat-insulating rod-shaped first heat insulating material is disposed along the joining flange while the end is placed on the support member, and a second heat insulating material provided with a surface material is used as a first heat insulating material around the first heat insulating material. The surface material is brought into contact with the support member and is fastened to the screw portion of the support member.

Therefore, the entire lower surface of the unit panel is covered with the first and second heat insulating materials, and a sufficient heat insulating effect can be obtained.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is an exploded sectional view showing the basic structure of the heat retaining structure of the present invention.
B, the unit panel 10 formed with the flange 10B is connected to each other by bolts and nuts.
Is placed on a base H made of H-shaped steel to form a bottom plate.

Reference numeral 20 denotes a bottom plate cover fixing member constituting a support member, which may be made of metal or synthetic resin. As shown in detail in FIG. 2, the bottom plate cover fixture 20 in this embodiment has both ends bent at right angles to the main body 20A to form ears 20B, 20B.
And both ear parts 20B and 20B are orthogonal to each other in the extension plane. Furthermore, cutouts 20C, 20C are formed in the both ears 20B, 20B, respectively, and open in the same direction, and constitute a bolt insertion portion as described later. A screw portion 20D is formed at a substantially center of the main body 20A by burring. Note that, instead of forming the threaded portion by the burring process, the threaded portion may be provided by welding a nut.

Referring to FIGS. 1 and 3, reference numeral 30 denotes a first
It is a rod-shaped heat insulating material constituting a heat insulating material, and has a rectangular cross section as a basic shape. In this embodiment, a rod-shaped long heat insulating material 30A having a length corresponding to the distance between the opposed joining flanges 10B, 10B and the long heat insulating material 3 from the distance.
A rod-shaped short heat insulating material 30B having a length obtained by subtracting two widths of 0A is provided. And the rod-shaped heat insulating material 3
0 has a stepped portion 30C that engages with a second heat insulating material, which will be described later, at a lower side portion disposed on the inner peripheral side. The height of the rod-shaped heat insulating material 30 is set substantially equal to the height of the joining flange 10B in the unit panel 10 described above.

As shown in FIG. 4, a joint flange 10B is provided on the side of the rod-shaped heat insulating material 30 which is arranged on the outer peripheral side.
Notch 30D ₁ for avoiding interference with the bolt B ₁ interconnecting is formed a. In the example shown in FIG. 4, the flange 10 </ b> B of the unit panel 10 is fixed to the gantry H with the bolts B <b> ₂ using the mounting bracket K made of an angle member. In the case of the type, the mounting bracket K and the bolt B ₂ are also provided on the lower side portion arranged on the outer peripheral side of the rod-shaped heat insulating material 30.
Cutouts 30D ₂ is formed to avoid interference with.

Next, returning to FIG. 1 again, reference numeral 40 denotes a bottom plate heat insulating cover constituting a second heat insulating material, and a heat insulating material layer 40A and a plastic or metal surface material layer 40B covering the same.
And The heat insulating material layer 40A is provided with a step 40C that engages with the step 30C of the rod-shaped heat insulating material 30 described above. Then, the surface material layer 40B is insertion hole 40D of the bolt B ₃ is formed protrudes from thermal insulation material layer 40A so as to abut against the bottom plate cover fixing device 20, the projecting portion in its four corners.

In this embodiment having the above structure, the unit panels 10 are mounted on the gantry H with their joint flanges 10B abutting on each other. And the joining flange 10B
The upon interconnecting via a bolt insertion hole 10C by the bolt B ₁ and nut are fastened with a bolt B ₁ through even the notch 20C bottom plate cover fixing device 20 simultaneously. In the embodiment shown in FIG. 4 are fastened installed fittings K at the same time, the mounting bracket K is fixed to the frame H further by bolts B _2.

When the installation of the bottom plate cover fixing device 20 at the four corners of the unit panel 10 is completed, the long heat insulating material 30A of the rod-shaped heat insulating material 30 as the first heat insulating material is placed on the bottom plate cover fixing device 20. Along the opposed flanges 10B, 10B, a short heat insulating material 30B is arranged along the remaining opposed flanges 10B, 10B. FIG. 2 shows a state where the arrangement of the first heat insulating material on the four sides is completed.

Further, after the above arrangement is completed, the second
The bottom plate heat insulating cover 40 as the heat insulating material has its heat insulating material layer 40A.
Is in contact with the inner peripheral side of the rod-shaped heat insulating material 30, and the step portions 30C and 40C are engaged with each other. At the same time, since at this time the projecting portions of the facing layer 40B is in contact with the bottom plate cover fixing device 20, the bottom plate cover bottom plate insulation cover 40 by screwing the bolts B ₃ through the bolt insertion hole 40D to the threaded portion 20D Fastened to the fixture 20.

Thus, the entire lower surface of the pressure receiving surface 10A of the unit panel 10, including the periphery of the flange 10B, is covered with the first and second heat insulating materials 30, 40, and a large heat insulating effect is obtained. Can be

[0021]

As is apparent from the above description, according to the present invention, the supporting members are installed at the four corners of the unit panel, and the first
In addition, since the second heat insulating material is separately provided, a bottom plate heat insulating structure of an assembling liquid storage tank capable of obtaining a sufficient heat insulating effect while enabling post-installation of the heat insulating material can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded cross-sectional view showing the basic structure of the heat retaining structure of the present invention.

FIGS. 2A and 2B are perspective views of one embodiment of a support member according to the present invention, wherein FIG. 2A shows a state before mounting and FIG.

FIG. 3 is a bottom view showing an arrangement state of a first heat insulating material in one embodiment of the present invention.

FIG. 4 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Unit panel 10A Pressure receiving surface 10B Joining flange 20 Bottom plate cover fixing member 20D Screw part 30 Bar-shaped heat insulating material (first heat insulating material) 40 Bottom plate heat insulating cover (second heat insulating material) 40B Surface material layer

Claims (1)

(57) [Scope of request for utility model registration] 1. A bottom plate heat retaining structure of an assembling type storage tank in which unit panels each having a joining flange formed on four sides of a pressure receiving surface are connected to each other with the joining flange facing outward, wherein the heat retaining structure is attached to the bottom plate. However, after assembling the liquid storage tank, a support member having a threaded portion whose ends are fixed to the different sides of the joint flanges at the four corners of the bottom panel unit panel with first bolts, respectively, is mounted, and the ends are mounted on the support member. The first heat insulating material having a substantially rod shape is arranged along the joining flange while being placed, and the periphery of the second heat insulating material provided with a surface material is brought into contact with the first heat insulating material, and the surface material is used as the support member. Abuts the screw portion with a second bolt to form a substantially one-layer bottom plate heat-insulating structure, and removes the heat-insulating structure from the bottom plate by the second bolt. Release the bolts and release the second heat insulator Wherein after spontaneous separation first
A bottom plate heat-insulating structure for an assembling-type liquid storage tank, wherein the heat-insulating material is removed to eliminate the formation of the bottom plate heat-insulating structure.