JPS5977200A - Coldness keeping construction of tank - Google Patents

Abstract

PURPOSE:To halve a number of anchor bolts and omit cutting and adhesive work of a cold keeping panel so as to save a manufacturing cost, by arranging the anchor bolt anchored on a concrete wall and a membrane-supporting metal fixture to be provided in the concentric position. CONSTITUTION:The body of an anchor bolt 12 implanted on a concrete wall 11 of a tank body is penetrated with a penetrating hole 13b, and a cold keeping panel 13 is laminated to the concrete wall 11, then after the center through hole of a veneer board 15 is fitted to a body end part of the anchor bolt 12, the veneer board 15 is fixed to a notched part 13a of the cold keeping panel 13 by screwing a nut 16 to be tightened, next a membrane-supporting metal fixture 17 is fitted so as to be placed in the concentratic position with the anchor bolt 12, and the membrane-supporting metal fixture 17 is secured to the veneer board 15 by screw mounting the nut to be tightened, and then a membrane 19 is welded to the membrane-supporting metal fixture 17.

Description

[Detailed Description of the Invention] In underground tanks for storing low-temperature liquefied gas, cold panels with good insulation properties are layered on the concrete walls of the tank body.
A steel membrane is pasted on the inside to store low-temperature liquid.

Figures 1 to 6 show this type of conventional tank cold insulation structure, in which the outer wall side and inner cold insulation panels (3) are connected via a pair of anchor bolts (2) anchored to the concrete wall (1) of the tank. (4) Support the plywood (5) between the plywood (5)
A membrane support hardware (6) is attached to the membrane (an indirect support structure that supports the weight and back pressure of the force).

In the figure (8), the filler plug (9) loaded into the notch of the outer cold insulation panel (4) is filled with a filler such as glass wool, (101
is a washer for mounting membrane support hardware.

In the conventional cold storage structure, the membrane support hardware 1
Two anchor bolts are required for the Tsukuda hit, and in order to encase the plywood, the cold insulation panel has a two-part structure, an inner wall cold insulation panel and an outer wall cold insulation panel, so it is difficult to fit each cold insulation panel together. This method has the disadvantage that it requires a considerable amount of man-hours and expense for surface cutting and bonding work.

The present invention has been proposed to eliminate such drawbacks, and includes a cold insulation panel for storing liquid heat interposed between the concrete wall of the tank body and the lining membrane.
This invention relates to a cold insulation structure for a tank, characterized in that an anchor bolt anchored to the concrete wall and a membrane support hardware are arranged concentrically.

As mentioned above, in the present invention, the cold insulation panel has a direct support structure in which the anchor bolts anchored to the tank frame cleat wall and the membrane support hardware are arranged concentrically, so the number of anchor bolts can be halved. It can be manufactured as a single unit without having to have a two-part structure for cooling and cooling.

This eliminates the conventional cutting and gluing of the cold insulation panel, thereby reducing production costs.

The illustrated embodiments of the present invention will be described below.

(11) is the concrete wall of the tank frame.
) wall (anchored on 11+, planted anchor bolt (12)
1, a cold insulation panel (13) is layered on the concrete wall (11) by inserting a hole (13b) communicating with the surface notch (13a) in the cold insulation panel (+3) F ( At regular intervals along the periphery, plywood (with one central through hole) is fitted with Pol MI41 so that the bolt heads are located on the inside surface.

The anchor bolt facing into the notch (13a) (after being inserted into the tip of the body of the anchor bolt 02) fl, 6+ is screwed and tightened, and the plywood (19) is screwed and tightened.
is fixed to the notch (13a) of the cold insulation panel (13), and then a cylindrical membrane support hardware OD with an opening on the inside surface is placed in the notch (13a) at a position concentric with the anchor pole (11). ’, and attach the menzolene support hardware (
The peripheral edge (1, 7a) extending outward from the opening edge of 17)
Fit the annular mounting washer (1 barrel) so as to hold down the plywood (1 barrel), and fit each of the above plywood (1 The membrane support hardware (17) is fixed to the plywood (151) by screwing and tightening the NAND (not shown).
It is for welding.

In the figure, (21M is a filler such as glass wool loaded into the membrane support hardware a'7), and (21) is a stopper loaded into the notch (13a).

In this way, by positioning the anchor bolt (121) and the membrane support hardware (1 force) concentrically and creating a direct support structure, a wide plywood (121
), there is no need to insert it into the cold insulation panel (13).
By manufacturing it as a single piece instead of dividing it into two parts as in the past, the process of cutting the mating surfaces of the inner and outer cold insulation panels, fitting plywood, and gluing is completely omitted. In addition, since the number of anchor bolts (12) can be halved, the work of planting anchor bolts 02 on a concrete wall 0υ can be greatly reduced.Furthermore, force transmission conventionally relied on bending plywood. However, according to the present invention, the membrane support structure is close to a direct support structure, so the membrane support strength is stronger than before.Furthermore, according to the present invention, the membrane supporting hardware (1η) that supported the membrane is The cold insulation panel (13) can be freely expanded and contracted independently of the contraction and deformation of the membrane.

Although the present invention has been described with reference to embodiments, the present invention is of course not limited to such pIA examples, and various modifications of the design may be made without departing from the spirit of the present invention. It is something that can be done.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional tank cold insulation structure, and Figures 2 and 6 are views taken from arrow II-U in Figure 1, and arrow li.
Fig. t-111 and Fig. 4 are front views showing one embodiment of the tank cooling structure according to the present invention, and Fig. 5 is a view taken from the arrow V of the 41st word.
-V diagram. (Mark... Concrete wall, te21... Anchor bolt. (13)... Cold insulation panel, (15)
...Plywood (rules...membrane support hardware, 11
91-...Membrane. Later agent Ben Bl! Mr. Shige Okamoto, 2 other persons, Figure 2, Figure 3, Procedural amendment November 22, 1980, Commissioner of the Patent Office, Kazuo Wakasugi, 1, Indication of the case, 1984 Patent Application No. 184703, 2, Zugo. Name of Akira Tank Cold Insulation Structure 3, Correcting Power +'tr+- Relationship with Patent Applicant Name (620) Mitsubishi Heavy Industries, Ltd. 4, Ikuyo 3-! Ii person 5, amendment order 1-■・j Showa (1st year 2nd day 6th, subject of amendment) Description 7, contents of amendment (1) "Anchor bolt (11) J" on the last line of page 3 Correct it to "Anchor bolt (L21J). (2) "Plywood 05" on page 4, line 14"
” and correct it. (3) Correct "cold panel α3)" in line 15 of the same page to "cold panel (3), (4)".

Claims (1)

[Claims] In a cold insulation panel for retaining heat of stored liquid interposed between a concrete wall of a tank body and a lining membrane, an anchor bolt anchored to the concrete wall and a membrane support hardware are arranged in a concentric position. The cold storage structure of the tongue and ribs is characterized by this.