JP3177577B2 - Liquid storage tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a liquid storage tank for storing a liquid.

[0002]

2. Description of the Related Art For example, there is a method of cooling a building or the like using cold water. In this method, cold water as a refrigerant is cooled and stored using electric power at midnight, and cooling is performed by circulating the cold water during the day. This method has an advantage that the operating cost can be reduced as compared with a normal electric cooling system, because it uses inexpensive midnight electric power for the electricity bill.

[0003] Water cooled by using midnight power is stored in a liquid storage tank.

[0004]

In this case, if the liquid storage tank is a simple one using a single panel, the temperature difference between the cold water in the tank and the outside air of the tank causes the cold water to warm up, and as a refrigerant, It might not work.

The present invention has been made in view of such problems existing in the prior art. It is an object of the present invention to provide a liquid storage tank that has a high heat retention function and is robust.

[0006]

Means for Solving the Problems In order to achieve the above object, in the invention of the liquid storage tank according to claim 1,
Plural panels formed by bending a rectangular plate into an arc shape
In the liquid storage tank in which a side wall is formed adjacently and an outer wall panel is provided outside the inner wall panel, and a heat insulator is interposed between the inner wall panel and the outer wall panel,
Bolts are erected and fixed at the boundary between the inner wall panels by welding
Before the recess for forming the bolt is formed.
At the end of the heat insulating material is formed a recess to be filled with a filling body,
The bolt is provided between the filler in the recess and the outer wall panel.
Through a wooden stand that has a recess where the tip of the
So that the outer wall panel is screwed to the wood base.
It was made .

[0007]

[0008] In the invention described in claim 2, which in the liquid reservoir tank in claim 1 serial <br/> placing, by a plate member used in the inner wall panel or external wall panels were placed dead water preventing means inside the tank It is.

Therefore, the above-described invention has the following effects. In the liquid storage tank according to the first aspect, an outer wall panel is provided outside the inner wall panel of the tank, and a heat insulating material is interposed between the inner wall panel and the outer wall panel, and the side wall of the tank has a high heat insulating property. It is formed in a multiplex structure. Also, inside the recess formed at the end of the heat insulator
A wooden stand is interposed in the
Since a recess is provided in which the
Is not exposed to the outside.

[0010] Claim2In the invention described in the above, the inner wall
Panel or a panel used for exterior wall panels
Dead water inside the tank
The area is reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 2 and 4, the liquid storage tank comprises a side wall 1, a bottom 2 and a lid 3, which are fixed by welding. The water inlet 4 is disposed at an upper portion of the side wall 1 near the corner, from which the liquid flows into the tank. The water outlet 5 is disposed below the water inlet 4 in a point-symmetric positional relationship with respect to the center of the tank. From here, the liquid in the tank is supplied to the outside.

As shown in FIGS. 1 and 3, the inner wall panel 8 constituting the inner wall of the side wall 1 is made of rectangular stainless steel, and is entirely formed in an arc shape along the short side. On one long side, a long flange 18 and a bent piece 1
9 are formed. In addition, a short flange 20 is formed by bending on the other long side portion. Here, the adjacent long flanges 18 and short flanges 20 are welded and fixed to each other, and the respective inner wall panels 8 are connected to each other.

Outer wall panels 6 and 7 constituting the outer wall of the tank
Two types of stainless steel made of the same material as the inner wall panel 8 are used. The first outer wall panel 6 used for the tank corner portion is entirely formed in an arc shape along a short side, and a flat portion 15 is formed on a long side portion of one side edge. A plurality of holes 41 are provided in the plane portion 15 at predetermined intervals in the longitudinal direction thereof. A semicircular concave portion 42 is formed on the side edge opposite to the plane portion 15 so as to correspond to each hole 41. The second outer wall panel 7 used for the portion except for the tank corner portion is entirely formed in an arc shape along the short side, and flat portions 16 and 17 are formed on both long side portions of the side edge. I have. Flat part 16,
Similarly to the first outer wall panel 6, a plurality of holes 41 penetrate the longitudinal direction. The first outer wall panel 6 constituting the corner portion is arranged such that the adjacent outer wall panels 6 face each other, and the other outer wall panels 6 and 7
The plane parts 15, 16, 17 are superposed.

The above three types of side wall panels have the same curvature. A heat insulating material 10 such as a foam material is interposed between the inner wall panel and the outer wall panel. The bolts 31 are erected and fixed to the boundaries between the inner wall panels 8 by welding, and their tips project outward from the holes 41 and the concave portions 42. The nut 33 is screwed to the protruding end of the bolt 31 to fasten the outer wall panels 6 and 7 and the heat insulating material 10. The plates 26 and 26a shown in FIG. 5 and FIG.
It is fixed by bolts between the outer wall panels, and is made of stainless steel, and has a hole 41 through which the bolt 31 is inserted, and covers a connection between the outer wall panels 6 and 7. Therefore, nut 3
The outer wall panels 6 and 7, the heat insulating material 10 and the inner wall panel 8 are integrally fixed by the tightening of 3, and a fixing member is constituted by the bolt 31 and the nut 33.

The recess 34 is formed at an end of the heat insulating material 10. The function of the recess 34 will be described in a second embodiment described later. Further, a concave portion 44 for passing the bolt 31 is formed at an end of the heat insulating material 10.

In the corner portion, a gap 43 having a fan-shaped cross section is formed between the heat insulating materials 10. The gap 43 is filled with a filler 32 made of the same material as the heat insulating material 10. The recess 3
The gap body 43a is also filled with the filler 32a.

As shown in FIG. 4, the bottom 2 and the lid 3 of the tank are constituted by a double structure of a panel 21.
A heat insulating material 10 is interposed between them. A partition plate 9 as dead water prevention means is disposed in the tank, and a meandering channel is formed in the tank by the partition plate 9. This partition plate 9
The inner wall panel 8 is welded to each other at its long flange 18 and short flange 20, and both upper and lower ends of the inner wall panel 8 are welded to the bottom 2 and the lid 3.

Therefore, the liquid flowing from the water inlet 4 meanders in the tank by the partition plate 9 and is supplied from the water outlet 5. The liquid storage tank configured as described above has the following effects.

(1) Since the side and upper and lower surfaces of the tank all have a multiplex structure in which a heat insulating material is interposed between the panels, it is possible to surely keep the liquid stored in the tank warm.

(2) Since the partition plate 9 uses the same one as the inner wall panel 8 as the side wall panel, it is not necessary to use a dedicated panel as the partition plate 9, and the cost can be reduced. .

(3) Since the side wall panels 6, 7, 8 of the tank and the panel of the partition plate 9 are formed to be curved in an arc shape, the strength is high and the whole tank has a strong structure. (4) The flow in the tank is meandered by the partition plate 9, so that the so-called dead water, which obstructs the flow in the tank, can be suppressed as much as possible.

(5) When the tank sways as in the case of an earthquake, not only the partition plate 9 exerts the function of maintaining the strength of the entire tank, but also the wave of the liquid in the tank. It has the effect of preventing so-called sloshing.
Therefore, the tank can be made extremely strong against breakage. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. 7 to 9, focusing on parts different from the first embodiment. In the second embodiment, the outer wall panels 6 and 7 and the plate bodies 26 and 26a are not provided with bolt holes, but are provided with holes 51. A wooden stand 52 is interposed between the filling body 32a in the recess 34 and the outer wall panels 6 and 7, and the wooden stand 52 has a recess 53 in which the tip of the bolt 31 and the nut 33 are arranged. Is provided. The screws 54 pass through the holes 51 of the outer wall panels 6 and 7 and the plates 26 and 26a and are screwed to the wooden base 52.

The liquid storage tank configured as described above has the following effects in addition to the effects of the first embodiment. (1) Since the bolt 31 and the nut 33 are not exposed to the outside, heat exchange inside and outside the tank can be more reliably suppressed.

(2) Since the head of the screw is visible because the screw is fixed, the external appearance of the tank is improved because the bolt 31 and the nut 33 are not exposed to the outside. The present invention can be embodied with the following modifications.

(1) The partition plate 9 is formed of a flat plate. (2) As shown in FIG. 10, a flat panel 45 is interposed between the arc-shaped side wall panels.

The technical ideas that can be grasped from the above embodiment will be described below. (1) The liquid storage tank according to claim 3, wherein a partition plate is used as dead water prevention means, and the partition plate forms a meandering path in the tank.

With this configuration, dead water hardly occurs in the tank.

[0029]

Since the present invention is configured as described above, it has the following effects. According to the first aspect of the present invention, the heat exchange inside and outside the tank can be suppressed, the temperature inside the tank can be reliably maintained, and the tank can be made strong.

[0030] Claim2According to the invention described in the above,
Dead waterofGeneration can be suppressed.

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing a tank according to a first embodiment.

FIG. 2 is a perspective view showing a tank according to the first embodiment.

FIG. 3 is an enlarged plan sectional view of a main part showing a side wall panel.

FIG. 4 is an enlarged side sectional view of a main part showing a tank.

FIG. 5 is a plan sectional view showing a connection state of a corner portion of a side wall.

FIG. 6 is a plan sectional view showing a connection state between side wall panels.

FIG. 7 is a perspective view showing a tank according to a second embodiment.

FIG. 8 is a plan sectional view showing a connection state of a corner portion of a side wall.

FIG. 9 is a plan cross-sectional view showing a connection state between side wall panels.

FIG. 10 is a perspective view showing another form of a tank.

[Explanation of symbols]

1 ... side wall, 6, 7 ... outer wall panel, 8 ... inner wall panel, 9 ...
Partition plate, 10 ... heat insulating material, 31 ... bolt, 32, 32a ...
Filler, 33 ... nut.

Claims (2)

(57) [Claims] A side wall is formed by arranging a plurality of panels each having a rectangular plate curved in an arc shape adjacent to each other to form a side wall. An outer wall panel is provided outside the inner wall panel, and between the inner wall panel and the outer wall panel. In a liquid storage tank with insulation
In addition , bolts are erected at the boundaries between the inner wall panels by welding.
At the same time, a recess for passing the bolt is formed.
At the end of the heat insulating material, a recess is formed to be filled with a filler.
Between the filler in the recess and the outer wall panel.
A tree with a recess where the bolt tip and nut are placed
With the stand interposed, screw the outer wall panel to the wooden stand
Liquid storage tank . 2. The method according to claim 1, which is used for inner wall panels or outer wall panels.
Plate with dead water prevention means inside the tank
The liquid storage tank according to claim 1.