JPH10120084A - Middle partition structure of water tank and fastening structure of unit panel - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To form a middle partition structure of a water storage tank in which a partition wall can be securely attached even when a pressure receiving surface of a unit panel is entirely curved, and to easily perform a fastening operation between flanges of a unit panel. Providing a simple fastening structure. SOLUTION: A fixed portion 25 which is fastened together with adjacent flanges of the unit panels 14 and 18 between adjacent unit panels 14 and 18 of a bottom wall 11 and a side wall 12, and is fixed into a water storage tank 1. A plate member 24 integrally provided with a fastening portion 26 protruding with a width W of
The corresponding end portion of the partition wall 13 is attached to the fastening portion 26 of FIG. Since the pressure receiving surface of the unit panel 14 is entirely curved in order to increase the strength of the bottom wall 11, there is no problem in mounting the partition wall 13 because the structure is not a structure for mounting the unit panel 14 on the bottom wall 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition structure for a water tank and a fastening structure for unit panels.

[0002]

2. Description of the Related Art As a conventional partition structure for a water storage tank, for example, there is one shown in FIG. 8 (for a similar technique, see Japanese Utility Model Application Laid-Open No. 62-177696).

The water tank 1 is formed by assembling unit panels 2 made of FRP or stainless steel. FIG. 8 is a view showing the bottom wall 3 of the water storage tank 1. Unit panel 2
It has a rectangular pressure receiving surface 4 and a flange 5 formed on the periphery thereof. In the center of the pressure receiving surface 4, a curved portion 4
a is formed, and a flat portion 4b having a predetermined width D is formed around it.

[0004] Assembling of the unit panels 2 is performed by bolting corresponding flanges 5 of adjacent unit panels 2 together.

[0005] When a partition wall 6 also formed of a unit panel is provided on the bottom wall 3, a flange 7 of the partition wall 6 is bolted to the flat portion 4 b of the unit panel 2. That is, the flat portion 4 b of the unit panel 2 is provided as a “fastening region” of the partition wall 6 and does not significantly affect the strength of the pressure receiving surface 4.

The curved portion 4a of the pressure receiving surface 4 mainly contributes to the strength of the unit panel 2. The smaller the flat portion 4b (the wider the curved portion 4a) in the pressure receiving surface 4, the more the unit panel 2 The strength of is improved. Ideally, as shown in FIG. 9, maximum strength is obtained by making the pressure receiving surface 9 of the unit panel 8 entirely curved.

[0007]

However, if the pressure receiving surface 9 of the unit panel 8 is entirely curved as shown in FIG. 9, a "fastening area" for providing the partition wall 6 cannot be obtained. Conventionally, a minimum flat portion 4b must be provided on the pressure receiving surface 4 for fastening the partition wall 6. Therefore, it is necessary to increase the thickness of the unit panel 2 itself in order to compensate for the decrease in the strength of the unit panel 2, which is disadvantageous in terms of formability, weight and cost of the unit panel 2.

The adjacent unit panels 2 are assembled by fastening the opposed flanges 5 to each other. However, due to the nature of the water storage tank 1, the watertightness between the flanges 5 must be reliably maintained. Since it is necessary to carefully perform the fastening operation between the five members, the work efficiency of the fastening operation is disadvantageous.

The present invention has been made by paying attention to such a conventional technique, and has a partition inside a water storage tank in which a partition wall can be securely mounted even if a pressure receiving surface of a unit panel is entirely curved. An object of the present invention is to provide a structure and a fastening structure that facilitates fastening work between flanges of unit panels.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a fixing portion which is fastened between adjacent unit panels on a side wall and a bottom wall together with corresponding flanges of the unit panels. And a plate member integrally provided with a fastening portion projecting with a predetermined width into the water storage tank, and a corresponding end of the partition wall is attached to the fastening portion of the plate material.

According to the present invention, since the partition wall is attached to the fastening portion of the plate material and not to the unit panel of the bottom wall, the pressure receiving surface of the unit panel is entirely provided to increase the strength of the bottom wall. Even if it has a curved shape, there is no problem in mounting the partition wall.

In another aspect of the invention, at least one bead portion projecting in a direction away from each other is formed on both flanges of the unit panel to be fastened along the longitudinal direction of the flange.

According to the present invention, since the bead portion is formed on the flange, the rigidity of the flange is improved, and the watertightness when the flanges are fastened is improved. As described above, since the watertightness of the fastening portion between the flanges is easily obtained, the time required for the fastening operation can be reduced, and the working efficiency is improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS.

The water tank 10 of this embodiment has a bottom wall 11,
It is formed of a side wall 12, a partition wall 13, and a ceiling (not shown).

The unit panel 14 forming the bottom wall 11 is made of stainless steel, and as shown in FIG.
6 is provided. The flange 16 has three bolt holes h
₁ is formed, the bead portion 17 that is vertically with the longitudinal direction along convex semicircular cross section to the outside of the flange 16
Are formed. The pressure receiving surface 15 is entirely curved and has no flat portion. Therefore, the unit panel 14 has higher strength than the conventional unit panel having a flat portion.

The corresponding flange 1 of the unit panel 14
As shown in FIG. 5, the bolts 6 are fastened by bolt / nut means B with the packing P interposed therebetween. In the fastened state, each bead portion 17 becomes convex in the direction away from each other, and the formation of this bead portion 17 improves the rigidity of the flanges 16 and improves the water tightness between the flanges 16. By forming the bead portion 17 in this manner, it is easy to obtain watertightness at the fastening portion between the flanges 16, so that the time required for the fastening operation by the bolt / nut means B can be reduced, and the working efficiency is improved.

The unit panel 18 forming the side wall 12 is also made of stainless steel, and has a pressure receiving surface 19 and a flange 20 as shown in FIG. The curved portion 1 is provided at the center of the pressure receiving surface 19.
9a are formed, and flat portions 19b are formed on the upper and lower sides. The vertical flanges 20 of the unit panel 18 are fastened to each other to form the side wall 12. The flange 16 of the unit panel 14 at the end of the bottom wall 11 is fastened to the lower flat portion 19b (the lower side is not shown) of the unit panel 18.
As described above, the lower flat portion 19b to which water pressure is applied in the unit panel 18 is hidden by the unit panel 14, and only the high-strength curved portion 19a is exposed inside the water storage tank 10.
The strength at the joint between the side wall 12 and the bottom wall 11 is high.

A partition wall 13 is formed at a predetermined position on the bottom wall 11 and the side wall 12 having the above-described structure. The unit panel 21 forming the partition wall 13 is also made of stainless steel and has a pressure receiving surface 22 and a flange 23. The pressure receiving surface 22 of the unit panel 21 has a flat shape as shown in FIG. The vertical flange 23 of this unit panel 21
The two are fastened to form the partition wall 13. Partition wall 13
Bolt hole h ₂ is formed in a lower portion of the pressure receiving surface 22 of the unit panels 21 to form a (see FIG. 7), the longitudinal direction also bolt holes h is the pressure receiving surface 22 of the unit panels 21 of the top side wall 12 closer
₃ are formed.

At a position where the partition wall 13 of the bottom wall 11 and the side wall 12 is provided, a plate member 24 having an overall upward U-shape is provided. This plate material 24
Are unit panels 14 forming a bottom wall 11 and a side wall 12,
A fixed portion 25 having a width corresponding to the flanges 16 and 20
And a fastening portion 26 having a predetermined width W are integrally formed. Bolt holes h ₄ and h ₅ corresponding to the flanges 16 and 20 of the unit panels 14 and 18 forming the bottom wall 11 and the partition wall 13 are formed in the fixing portion 25, and the bolts of the partition wall 13 are formed in the fastening portion 26. Bolt holes h ₆ and h ₇ corresponding to the holes h ₂ and h ₃ are formed.

The plate member 24 has a fixing portion 25,
The partition wall 13 is sandwiched between two adjacent unit panels 14 and 18 at the installation site of the partition wall 13 on the bottom wall 11 and the side wall 12. That is, as shown in FIG. 3 as a representative of the bottom wall 3 side portion, two sheets are interposed between the flanges 16 of two adjacent unit panels 14 together with the packing P,
The fixing part 25 of the packing P and the plate material 24 is
Fasten together with nut means B. Since the bead portions 17 are formed on the flanges 16 in the joint portions, the rigidity of the flanges 16 is improved, and the watertightness between the flanges 16 is improved.

By fixing the fixing portion 25 of the plate member 24 to the bottom wall 11 and the side wall 12 as described above, the fastening portion 26 projects to the inside of the water storage tank 10. The partition wall 13 is attached to the fastening portion 26 of the protruding plate member 24 by bolt / nut means B with the packing P interposed therebetween.

As described above, since the partition wall 13 is mounted via the plate member 24, even if the pressure receiving surface 15 of the unit panel 14 is formed to be entirely curved in order to increase the strength of the bottom wall 11, the partition wall may be formed. 13 can be securely attached without any trouble.

In the above description, the unit panels 14, 1
8 and 21 are made of stainless steel, but may be made of FRP. Although the bead portion 17 has a semicircular cross section as an example, it may have a triangular cross section. Furthermore, although an example in which two bead portions 17 are formed on the flange 16 has been described, one bead may be used as long as the watertightness can be improved.

[0025]

According to the present invention, since the partition wall is attached to the fastening portion of the plate material and not to the unit panel of the bottom wall, the pressure receiving surface of the unit panel is entirely provided to increase the strength of the bottom wall. Even if it has a curved shape, there is no problem in mounting the partition wall.

According to the present invention, since the bead portion is formed on the flange, the rigidity of the flange is improved, and the watertightness when the flanges are fastened is improved. As described above, since the watertightness of the fastening portion between the flanges is easily obtained, the time required for the fastening operation can be reduced, and the working efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a water storage tank according to a first embodiment.

FIG. 2 is a sectional view taken along the line SA-SA shown in FIG.

FIG. 3 is an enlarged sectional view showing a portion indicated by an arrow DA in FIG. 2;

FIG. 4 is a perspective view showing a unit panel forming a side wall.

FIG. 5 is a sectional view taken along the line SB-SB shown in FIG. 1;

FIG. 6 is a perspective view showing a plate member.

FIG. 7 is a perspective view showing a unit panel forming a partition wall.

FIG. 8 is a sectional view showing a conventional partition structure of a water storage tank.

FIG. 9 is a cross-sectional view showing a conventional unit panel in which a pressure receiving surface is entirely curved.

[Explanation of symbols]

 Reference Signs List 10 water storage tank 11 bottom wall 12 side wall 13 partition wall 14, 18, 21 unit panel 15, 19, 22 pressure receiving surface 16, 20, 23 flange 17 bead portion 24 plate material 25 fixing portion 26 fastening portion

Claims (5)

[Claims] 1. A water tank in which a unit panel has a shape in which a flange is formed on a peripheral edge of a pressure receiving surface, and a partition wall of the unit panel assembly type is installed in a storage tank having side walls and a bottom wall of the unit panel assembly type. In the middle partition structure, between the unit panels adjacent to each other at the partition wall installation site of the side wall and the bottom wall, a fixing portion co-tightened with the corresponding flange of the unit panels, and a predetermined width into the water storage tank. A partition structure for a water storage tank, comprising: a plate member integrally provided with a fastening portion protruding from the plate member; and a corresponding end of a partition wall attached to the fastening portion of the plate material. 2. The water tank according to claim 1, wherein at least one bead portion projecting in a direction away from each other is formed on both flanges of the unit panel to be fastened together along the longitudinal direction of the flange. Partition structure. 3. A bead portion is formed at each of both sides of a portion of the flange that is to be fastened together.
Middle partition structure of the water tank described. 4. A unit panel fastening structure in which a unit panel has a shape in which a flange is formed on a peripheral edge of a pressure receiving surface, and a flange corresponding to each other of adjacent unit panels is fastened to each other. Wherein at least one bead portion is formed along the longitudinal direction of the flange. 5. A bead portion is formed on each of both sides of a portion of the flange that is to be fastened together.
The fastening structure of the described unit panel.