JPH08183590A - Heat-insulating liquid reservoir - Google Patents

Abstract

PURPOSE: To provide a heat-insulating liquid reservoir which can absorb stretch and fluctuation of a cover material and which causes no deformation nor damage. CONSTITUTION: Flanges are made to stand perpendicularly around a panel 2, a heat insulating material 4 is fixed to the panel 2 and also a cover material 5 is fixed thereon, peripheral sides of the cover material 5 are folded respectively along four sides to from a cushioning part to constitute a heat-insulating panel 1, and the heat-insulating panels 1 are assembled as unit panels to constitute a heat-insulating liquid reservoir. In coupling the heat-insulating panels 1, with an elastic material 9 interposed and a spacer 10 inserted into a through hole 8, the panels 1 are coupled by a bolt 12 and a nut 13. The folded cushioning part absorbs stretch and fluctuation of the cover material 5, and the elastic material 9 absorbs stretch or the like of the heat-insulating material 4 and the cover material 5, resulting in no crack or damage caused.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adiabatic liquid storage tank for storing drinking water or industrial water.

[0002]

2. Description of the Related Art In recent years, a large number of liquid storage tanks for storing drinking water or industrial water have been found by appropriately combining hard unit panels such as FRP and steel plates. When using such a storage tank in an environment where there is a significant temperature difference, such as inside or outside of cold districts, an insulating material is attached to the outer surface of the panel to maintain the liquid temperature of the stored liquid inside. It is common to configure the liquid storage tank by using unit panels that have been formed.

As a liquid storage tank having a heat insulating structure, for example,
As shown in FIG. 8, flanges 101 are provided upright around a rectangular panel portion 100 so as to be orthogonal to each other, a heat insulating material 102 is adhered to the outer surface of the panel portion 100, and a peripheral end portion 103a is further provided on the outer surface. Cover material 1 that is curved in an approximately 1/4 arc shape
As shown in FIG. 9, a unit panel 104 to which 03 is adhered is connected by bolts 105 and nuts 106 with a packing a interposed therebetween to form a heat-insulating liquid storage tank.

To connect the bolt 105 and the nut 106, a cylindrical spacer 108 with a flange is usually fitted into a through hole 107 formed in the heat insulating material 102 and the cover material 103 of the unit panel 104 at the side wall portion, and the spacer 108 is connected. The insertion hole 11 is formed in the inside of the panel portion 100 and the flange 110 of the bottom panel 109 joined to the panel portion 100.
1 is perforated and then the bolt 105 is passed through the insertion hole 111 to tighten the spacer 108 and the flange 110.

[0005]

However, when the above heat insulating structure is adopted for the liquid storage tank, the heat insulating material 102 is used.
Since the peripheral end portion 103a of the cover material 103 adhered to the surface of the unit is in contact with the side surface of the flange 101 of the unit panel 104, thermal expansion of the cover material 103 or thermal contraction of the panel unit 100 is absorbed. However, it is impossible to follow the deformation of the unit panel 104 due to the change in water pressure in the liquid storage tank.
04, especially the cover material 103 may be damaged or cracked.

Also in the above-mentioned connecting portion of the unit panel, the spacer 108 has the heat insulating material 102 and the cover material 10.
Since the outer diameter of the through-hole 107 is substantially equal to that of the through-hole 107, the cover material 103 cannot absorb the same expansion or deformation in the through-hole 107 portion, which may cause deformation or damage. there were.

Therefore, the present invention has been made to solve such a problem, and an object of the present invention is to absorb the expansion and contraction and fluctuation of the unit panel, particularly the cover material, so that the unit panel is deformed or damaged. An object of the present invention is to provide an adiabatic liquid storage tank having an adiabatic structure that does not cause

[0008]

In order to solve the above-mentioned problems, according to the present invention, a flange is erected around a panel portion in one direction, and a heat insulating material is fixed to the outer surface of the panel portion on the flange erection side. Assembling a heat-insulating panel having a structure in which a hard cover material is adhered to the outer surface of the heat insulating material, and a peripheral end portion of the cover material is formed as a folded-back cushioning portion capable of absorbing expansion and contraction in a cover surface extension direction. It is characterized by being an adiabatic liquid storage tank.

Further, a flange is erected around the panel portion in one direction, a heat insulating material is fixed to the outer surface of the panel portion on the flange standing side, and a hard cover material is attached to the outer surface of the heat insulating material.
A through hole that connects the cover material and the heat insulating material is formed at an appropriate position in the panel portion, and an elastic material including the inner peripheral surface of the cover material is interposed on the inner periphery of the through hole, and the collar is provided inside the elastic material. It is also characterized in that a heat-insulating liquid storage tank is obtained by assembling a heat-insulating panel by fitting a spacer having the above and fixing it with a panel fixing bolt and nut while pressing the cover material with the collar.

Further, a flange is erected around the panel portion in one direction, a heat insulating material is fixed to the outer surface of the panel portion on the flange standing side, and a hard cover material is attached to the outer surface of the heat insulating material. The peripheral end portion of the material is formed as a folded-back cushioning portion capable of absorbing expansion and contraction in the cover surface extension direction, and a through hole that connects the cover material and the heat insulating material is formed at an appropriate position in the panel portion. An elastic material including the inner peripheral surface of the cover material is interposed in the inner periphery of the hole, a spacer having a collar is fitted inside the elastic material, and the panel material is fixed with bolts and nuts while pressing the cover material with the collar. It is preferable to use an adiabatic liquid storage tank in which the adiabatic panel is fixed by assembling the adiabatic panel.

[0011]

The folding buffer portion formed at the end portion of the cover material absorbs the expansion and contraction and fluctuation of the cover material, so that the end portion of the cover material can be prevented from being damaged and cracks can be prevented from occurring. Further, since the elastic material absorbs the fluctuation of the cover material and the heat insulating material, it is possible to prevent the damage and cracks from occurring in the vicinity of the through holes of the cover material and the heat insulating material.

[0012]

Embodiments of the heat-insulating liquid storage tank according to the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged view of an end of a cross section along one side of a heat insulating panel 1 which constitutes the heat insulating liquid storage tank of the present invention. In this heat insulating panel 1, a flange 3 is integrally provided upright around a rigid panel portion 2 such as a rectangular FRP or a steel plate so as to be orthogonal to each other.
A heat insulating material 4 having an appropriate thickness is fixed to the outer surface of the foamed material of an arbitrary synthetic resin, and a thin hard cover material 5 made of synthetic resin or the like is fixed to the outer surface of the heat insulating material 4. A folding buffer portion 6 capable of absorbing expansion and contraction in the cover surface extension direction is formed by forming the peripheral end portion of the material 5 along each of the four sides so as to have a folded shape such as a substantially arcuate cross section or a U shape. The heat insulation liquid storage tank of the present invention is constructed by assembling the heat insulation panel 1 as a unit panel.

Of these, FIG. 1A shows that the central portions of the panel portion 2, the heat insulating material 4 and the cover material 5 are curved and bulged to the side opposite to the flange, and the peripheral edge portion of the cover material 5 is U-shaped. Of FIG. 6B, a U-shaped folding buffer portion 6 is formed after the peripheral edge portion is slightly bent so as to approach the panel portion 2. (C) is one in which the central portions of the panel portion 2, the heat insulating material 4, and the cover material 5 are curved and bulged in the opposite side to the flange, and the arc-shaped folding buffer portion 6 is formed in the peripheral edge portion of the cover material 5, FIG. 3D shows a U-shaped folded back cushioning portion 6 formed on the peripheral end portion of a substantially flat cover material 5 along the panel portion 2.

As shown in FIG. 2, the folded back cushioning portion 6 has both end portions 6 as curved surfaces 6a in which the folded back surface is appropriately curved.
The distance w between the b and 6c is made as wide as possible, and the rising of the end portion 6c is made gentle so that the absorbability of the expansion and contraction of the cover material 5 is enhanced and the cover material 5 is strong.

By forming such a folded back cushioning portion 6 at the peripheral end portion of the cover material 5, the folded back cushioning portion 6 of the cover material 5 is covered by the panel surface 7 (the outer surface of the panel portion 2 or the flange 3).
The inner surface of the panel member 2 is in contact with the inner wall surface of the panel member 2. Therefore, the influence of the thermal expansion of the cover member 5, the thermal contraction of the panel unit 2, or the deformation of the panel unit 2 due to the change in the water pressure in the liquid storage tank is caused via the folding buffer unit 6. Is transmitted to the panel surface 7, and the folded back cushioning portion 6 is sandwiched between the panel surface 7 and the cover material 5, so that the curved surface 6a of the folded back cushioning portion 6 is opposite to the end portion 6b.
Since they are contracted by the forces of c and c in the contracting direction, it is possible to prevent the end portion of the cover material 5 itself from being damaged and prevent the occurrence of cracks.

As shown in FIG. 3, the folding buffer section 6 may be modified in various ways. Of these, the one shown in FIG. 3A is one in which the folded back buffer portion 6 is formed of a material different from the cover material 5 and is integrated with the cover material 5 by being fixed to the end portion of the cover material 5. Is.
In this case, it is preferable to use a synthetic resin material that is relatively softer than the cover material 5 for the folded back cushioning portion 6, so that absorbability of external force can be further enhanced. In addition, the one shown in FIG. 6B shows a case where the folding back buffer portion 6 is made of a material having a thickness larger than that of the cover material 5. By doing so, it is possible to increase the strength of the folded back buffer portion 6 itself, which is preferable.

The heat-insulating liquid storage tank of the present invention comprises the above heat-insulating panels 1 connected by bolts and nuts as shown in FIGS. 4 and 5. That is, a spacer 10, which will be described later, is fitted into the through hole 8 formed in the heat insulating material 4 and the cover material 5 of the heat insulating panel 1 in the side wall portion so that the spacer 10 described below is fitted to the heat insulating panel. Panel part 1
The outer surface of the flange 3A of the bottom panel 1A on the other side is brought into contact with the pressure receiving surface 2a of
After inserting an insertion hole 11 so as to communicate with the through hole 8 from the inner surface of A, a bolt 12 is inserted from this insertion hole 11,
The spacer 10 and the flange 3A are tightened with the nut 13.

The spacer 10 has a substantially cylindrical insertion portion 10a having an outer diameter smaller than that of the through hole 8 and a thickness substantially equal to the thickness of the heat insulating material 4 and the cover material 5, and the through hole 8.
Thick disk-shaped collar 10b having a diameter larger than that of
And the elastic material 9 is the insertion portion 10 of the spacer 10.
It is for loading a hollow cylindrical void formed between the insertion portion 10a and the through hole 8 when the a is inserted into the through hole 8, and has a hollow thickness made of a foamed resin material such as soft rubber. It is a meat disk-shaped member.

In the heat insulation liquid storage tank of the present invention, as described above, the heat insulation panel 1 is connected by interposing the elastic material 9 between the spacer 10 and the through hole 8 of the heat insulation material 4 and the cover material 5. Therefore, since the expansion and contraction as described above can be absorbed by the elastic material 9 at the portion where the through hole 8 is formed, no excessive force acts on the through hole 8 formed for inserting the bolt. The heat insulating material 4 and the cover material 5 are not damaged or cracked.

Further, in the case where the through hole 8 is closed, FIG.
As shown in (A), it is also possible to interpose the elastic material 9 on the spacer 10 to close it, and in this case also, the elastic material 9 can absorb the influence of expansion and contraction in the through hole 8 portion,
The cover material 5 is not damaged or cracked. Incidentally, the spacer 10 in this case can be a spacer 10A having a recess 10c which is largely recessed in the axial direction from the central portion of the collar 10b to the insertion portion 10a, as shown in FIG.

The heat insulating panel can be connected using the spacer 10A as shown in FIG. 7, but the diameter of the recess 10c of the spacer 10A is large enough to fit the nut 13 therein. After the connection, the nut 13 can be connected at the concave portion 10c, and the nut 13 does not project, which is preferable.

The through hole may have various shapes instead of the substantially cylindrical shape. Further, although the heat insulation liquid storage tank configured by using the heat insulation panel of the present invention has been described, an elastic material is loaded to a normal unit panel not including the heat insulation panel of the present invention and not including the folded buffer portion of the present invention. It is also possible to configure the heat-insulating liquid storage tank from one having the same configuration as described above.

[0023]

EFFECTS OF THE INVENTION The heat-insulating liquid storage tank of the present invention is constructed by appropriately assembling a heat-insulating panel in which a folding buffer portion is formed at the end of the cover material and the folding buffer portion abuts against the panel surface. Therefore, the expansion and contraction and the fluctuation of the cover material can be absorbed by the folding back buffer portion, so that the cover material is not deformed or damaged.
In addition, since the heat insulating panels are connected by bolts and nuts by interposing an elastic material, the expansion and deformation near the through hole can be absorbed by the elastic material.
It is possible to prevent damage and cracks in the cover material and the heat insulating material.

[Brief description of drawings]

FIG. 1 is a partially enlarged cross-sectional view of a heat-insulating panel that constitutes the heat-insulating liquid storage tank of the present invention. FIG. 1 (A) shows a central portion of a panel portion or the like that is curved and swelled and a U-shaped folded buffer portion is formed. (B) shows a U-shaped folded back cushioning part formed by bending and bulging a cover material or the like bent around the peripheral end in the same manner as (A), and (C) of FIG. Similarly, a curved bulge is formed and then an arcuate folded-back cushioning portion is formed, same figure (D)
Shows a U-shaped folded back cushioning part formed on the peripheral edge of a substantially flat cover material.

FIG. 2 is an enlarged cross-sectional view showing a folded buffer portion.

FIG. 3A is an enlarged cross-sectional view showing another folded-back cushioning portion, and FIG. 3B is an enlarged sectional view showing a heat insulating panel including another folded-back cushioning portion.

FIG. 4 is an exploded cross-sectional view showing a connecting portion of a heat insulating panel.

FIG. 5 is an enlarged cross-sectional view showing a connecting portion of a heat insulating panel.

FIG. 6A is an enlarged sectional view showing a portion in which a through hole of a heat insulating panel is loaded with a spacer, and FIG. 6B is a sectional view showing another spacer.

FIG. 7 is an enlarged cross-sectional view showing another connection portion of the heat insulating panel.

FIG. 8 is an enlarged cross-sectional view showing a heat insulating structure portion of a conventional liquid storage tank.

FIG. 9 is an enlarged cross-sectional view showing a connected state of a conventional unit panel.

[Explanation of symbols]

 1 heat insulation panel 2 panel part 3 flange 4 heat insulating material 5 cover material 6 folding buffer part 7 panel surface 8 through hole 9 elastic material 10,10A spacer

Claims (3)

[Claims] 1. A flange is erected in one direction around a panel portion, a heat insulating material is fixed to the outer surface of the panel portion on the flange standing side, and a hard cover material is attached to the outer surface of the heat insulating material. An adiabatic liquid storage tank in which a heat insulating panel having a structure in which a peripheral end portion of a material is formed as a folded buffer portion having a folded shape capable of absorbing expansion and contraction in a cover surface extension direction is assembled. 2. A flange is erected around the panel portion in one direction, a heat insulating material is fixed to the outer surface of the panel portion on the flange standing side, and a hard cover material is adhered to the outer surface of the heat insulating material. A through hole that communicates the cover material and the heat insulating material is formed at an appropriate position, and an elastic material including the inner peripheral surface of the cover material is interposed on the inner periphery of the through hole, and a collar is provided inside the elastic material. An adiabatic liquid storage tank in which a spacer is fitted and the cover material is pressed by the collar and fixed with panel fixing bolts and nuts to assemble a heat insulating panel. 3. A flange is erected in one direction around the panel portion, a heat insulating material is fixed to the outer surface of the panel portion on the flange standing side, and a hard cover material is adhered to the outer surface of the heat insulating material. The peripheral end portion of the material is formed as a folded-back cushioning portion capable of absorbing expansion and contraction in the cover surface extension direction, and a through hole that connects the cover material and the heat insulating material is formed at an appropriate position in the panel portion. An elastic material including the inner peripheral surface of the cover material is interposed in the inner periphery of the hole, a spacer having a collar is fitted inside the elastic material, and the panel material is fixed with bolts and nuts while pressing the cover material with the collar. An adiabatic liquid storage tank that is fixed in place and assembled with an adiabatic panel.