JPH0667999U - Cold storage tank - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent dew condensation on the surface of the exterior material of the cold storage tank. [Structure] In a cold storage tank configured by providing a cold insulating material 2 on the outer side of an inner tank 1 and a corrugated exterior material 3 on the outer side thereof, a nut 9 is fixed to the outer side of the inner tank 1 by welding, and a bolt 10 is attached thereto. A heat insulating block member 11 made of a low thermal conductivity material such as wood and the like is positioned around the nut / bolt, and the nut 12 is screwed separately to the bolt 10 to tighten the heat insulating block member. 11 is pressed and held on the outer surface of the inner tank, and the exterior material 3 is attached to the support material 13 attached to the heat insulating block member 11 with screws 15 to be supported. [Effect] The load applied by the exterior material 3 is the heat insulating block member 11
Since there is no problem in strength since it is applied to the inner tank 1 via the heat insulating block member 11, the low temperature on the inner tank side is blocked by the interposition of the heat insulating block member 11 and is not transmitted to the outer covering material 3, so that dew condensation is formed on the surface of the outer covering material 3. Does not occur.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cold storage tank for storing low-temperature fluid, and more particularly to an improvement of a cold storage tank configured by attaching an exterior material to a cold insulation material provided outside an inner tank.

[0002]

[Prior art]

 Conventionally, in a cold insulation tank configured by providing a cold insulation material on the outside of the inner tank and attaching an exterior material for protecting the cold insulation material to the outside, in the case of a small tank, as shown in FIG. The cold insulator 2 is held on the outside of the tank 1 by a fastening member such as a strip steel (not shown), and the outer circumference of the cold insulator 2 is covered with a moisture-proof material 4 and an exterior material 3 such as a metal corrugated plate. The enclosure 3 has a cold insulation structure in which the exterior material 3 is fixed by tapping screw screws 5 or the like screwed into the cold insulation material 2 from the outside.

However, in the above-mentioned exterior material mounting structure, since all the load by the exterior material is applied to the cold insulating material, there is a problem in strength in the case of a large vertical tank. Therefore, in the case of a large vertical tank, conventionally, as shown in FIG. 3, the angle member 7 is attached to the metal flat plate 6 fixed to the outer side of the inner tank 1 by welding or the like, and the angle member 7 is attached to the metal plate 6. The exterior material 3 such as a square corrugated plate is fixed by tapping screw screws 8 or the like. Further, as in the case of FIG. 2, a moistureproof material 4 is interposed between the cold insulating material 2 and the exterior material 3.

[0004]

[Problems to be solved by the device]

 The conventional cold storage tank shown in Fig. 3 has a structure in which the load from the exterior material is not applied to the cold insulation material and is applied to the inner tank side, so the strength problem is solved, but it is made of metal with high thermal conductivity. Since the exterior material 3 is supported through the flat plate 6 and the angle material 7, the low temperature on the inner tank side is transmitted to the exterior material, and dew condensation occurs on the surface of the exterior material. When used, there is a problem that rust is generated due to dew condensation and the exterior material is easily deteriorated.

[0005]

[The purpose of the device]

 The present invention has been made in order to solve the above-mentioned problems, and a cool tank that does not transmit the low temperature of the low temperature fluid to the exterior material even if the load of the exterior material is applied to the inner tank side Its main purpose is to provide.

[0006]

[Means for Solving the Problems]

 In the present invention, in a cold storage tank configured by providing a cold insulating material on the outside of the inner tank and providing an exterior material on the outside of the cold insulating material, a heat insulating block member made of a low thermal conductivity material is fixed on the outside of the inner tank. The gist is a structure in which an exterior material is supported by this heat insulating block member.

[0007]

[Action]

 According to the above configuration, the load of the exterior material is supported on the inner tank side. Moreover, the low temperature of the inner tank is blocked by the heat insulating block member consisting of the low thermal conductivity member, and is not transmitted to the exterior material.

[0008]

【Example】

 FIG. 1 shows an embodiment of the present invention. In the figure, members that are the same as or similar to those in FIGS. 2 and 3 are given the same reference numerals.

In this embodiment, a nut 9 is fixed to the outer side of the inner tank 1 by welding, and a bolt 10 is screwed to the nut, and a short tube made of a low thermal conductivity material is provided in a portion surrounding the nut 9 and the bolt 10. The heat insulating block member 11 is positioned, and the nut 12 screwed separately to the bolt 10 is applied to the flange portion 11a protruding on the inner surface of the short cylinder heat insulating block member 11 to tighten the heat insulating block member 11. The member 11 is pressed and held on the outer peripheral surface of the inner tank 1.

A wood material is suitable as the low thermal conductivity material used for the heat insulating block member 11. In addition to wood materials, plastic foams with a large number of closed cells and FRP are also available.

An upper end of an angled metal support member 13 is fixed to the tip end of the heat insulating block member 11 by a tapping screw screw 14, and a rectangular corrugated exterior plate 3 is tapped on the lower end side of the support member 13. -Fixed and supported by screw screws 15. Reference numeral 16 denotes a seal material provided between the heat insulating block member 11 and the support material 13.

In the illustrated example, the heat insulating block member 11 is composed of a nut 9 welded to the inner tank 1, a bolt 10 screwed to the nut 9, and a nut 12 separately screwed to the bolt 10. Although fixed to the inner tank 1, the fixing structure of the heat insulating block member 11 may be another structure. For example, a method of welding the bolt 10 to the inner tank 1 and fixing the heat insulating block member 11 with the bolt 10 and the nut 12 without using the nut 9 may be considered. Further, also regarding the method of supporting the exterior material 3 on the heat insulating block member 11, the exterior material 3 may be fixed to the heat insulating block member 11 with a wood screw or the like without using the angled metal supporting member 13.

According to the above configuration, since the load of the exterior material 3 is applied to the inner tank via the heat insulating block member 11, there is no problem in strength. Moreover, since the low temperature of the inner tank is blocked by the heat insulating block member and is not transmitted to the exterior material, dew condensation does not occur on the surface of the exterior material.

[0014]

[Effect of device]

 As described above, according to the present invention, since the exterior material is supported by the heat insulating block member made of the low thermal conductivity material fixed to the inner tank, the low temperature due to the low temperature fluid in the cold storage tank is applied to the exterior material. Therefore, dew condensation does not occur on the exterior material surface.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a cold storage tank showing an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a conventional cold storage tank.

FIG. 3 is a sectional view of a main part of another conventional cold storage tank.

[Explanation of symbols]

 1 Inner Tank 2 Cooling Material 3 Exterior Material 4 Moisture Proofing Material 5 Screw 6 Flat Plate 7 Angle Material 8 Screw 9, 12 Nut 10 Bolt 11 Heat Insulation Block Member 13 Supporting Material 14, 15 Screw 16 Sealing Material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Yoshio Nakamura 226-7, Matsubushi, Matsubushi-cho, Kita-Katsushika-gun, Saitama Prefecture (72) Creator Hideki Ueda 70 Sachigaoka, Asahi-ku, Yokohama-shi, Kanagawa

Claims (2)

[Scope of utility model registration request] 1. A cold storage tank comprising a cold insulation material provided outside an inner tank and an exterior material provided outside the cold insulation material,
A cold storage tank characterized in that a heat insulating block member made of a low thermal conductivity material is fixed to the outside of the inner tank, and an outer material is supported by the heat insulating block member. 2. A nut is fixed to the outside of the inner tank by welding, a bolt is screwed to the nut, and a short tubular heat insulating block member made of a low thermal conductivity material is positioned at a portion surrounding the nut and the bolt. The cold insulation tank according to claim 1, wherein the heat insulating block member is pressure-held on the outer surface of the inner tank by tightening a nut (12) screwed separately to the outer wall of the inner tank, and the outer material is screwed to the support member attached to the heat insulating block member.