JPH0518660A - Instantaneous freezing cabinet - Google Patents

Abstract

PURPOSE:To make a loosening and break hard to be produced even when expansion and constriction repeatedly occur, and repairing easy. CONSTITUTION:A compartment 2 of an instantaneous freezing cabinet is built of structural members and heat-insulating layers of an insulating material are formed on the inner surfaces of the room. Steel surface material is laminated on the heat-insulating layers on walls and ceiling, and a covering concrete 8 is applied over the heat-insulating layer on the floor. A heat-insulating material of glass wool 12, etc., with a cushioning property is enveloped by a synthetic resin film 25 and used for the heat-insulating layers on the walls and ceiling. Whether-proof steel plates 16 are used as the steel surface material. A waterproof layer of asphalt concrete 20 is applied on the cover concrete 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flash freezer attached to a food processing factory or a large refrigerated warehouse.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a conventional instant freezer, in which a wall 2 of a room 2 made up of a concrete skeleton 1, a ceiling, and a floor portion are provided with an asphalt moisture-proof layer 3 on the inner surface thereof.
The expanded polystyrene board 4 as a heat insulating material is laminated on it and attached to form a heat insulating layer. When the expanded polystyrene board 4 is attached, a zinc-plated keystone plate 5 as a finishing material is disposed on the inner surface of the wall or ceiling portion to hold it down. The keystone plate 5 is formed by laminating the expanded polystyrene board 4. The base wood 6 is fixed to the concrete skeleton 1 with heat insulating stud bolts 7 which are anchors, and is attached via the base wood 6.

Further, in the floor portion, the asphalt moisture-proof layer 3 is provided on the inner surface of the laminated body of the expanded polystyrene board 4,
Pressing concrete 8 is placed on it to press the laminated body of the expanded polystyrene board 4 from above. 9 in the figure
Is a concrete skirting board formed at the end of the holding concrete 8, 10 is a checker plate as a finishing material,
The checker plate 10 has a base angle material 11 embedded in the surface of the holding concrete 8, and the base angle material
Fix to 11 by spot welding.

In such an instant freezer, the inside of the freezer is -30 ° C to -50.
Cool at ° C, freeze food for 6-12 hours,
After the freezing process is completed, the heat insulating door is opened and the inside of the refrigerator is returned to room temperature, so that the inside of the refrigerator is constantly kept at room temperature to -50 ° C. Also, a large amount of water is used to prevent the food from cooling and drying, and the floor surface is constantly frozen and thawed.

Therefore, in the structural upper wall and ceiling,
As described above, a heat insulating material such as expanded polystyrene board 4 or urethane board is filled, and the surface finish thereof is a keystone plate 5 or a steel deck plate that can withstand expansion and contraction. Also, for the floor, after laying the same heat insulating material on the concrete floor and placing the holding concrete 8 on it,
In order to prevent cracks and peeling of the surface of the holding concrete 8, a checker plate 10 which is a steel plate of about 16 mm is driven in for reinforcement.

[0006]

However, in such a freezer, when the insulating board such as the expanded polystyrene board 4 contracts during operation, and the contraction and expansion occur repeatedly in the refrigerator, the ceiling part and the wall part are repeatedly generated. Gaps and looseness gradually
If cold air escapes from there and moisture adheres to it, it freezes during operation and the heat insulation performance deteriorates. Further, the escape of the cool air causes dew condensation on the opposite side of the body, causing mold and the like.

Further, the heat insulating wall and the ceiling base material are deformed and destroyed by the heat insulating material, and it is necessary to repair the heat insulating material and the moistureproof material every several years. In addition, regarding the floor, the checker plate 10 which is a steel plate contracts and expands due to freezing and thawing of the washing water, resulting in unevenness. Similarly, surface repair is required. Similarly, the joint weld has a crack. Also,
The water for washing the floor may freeze and the concrete floor such as the holding concrete 8 may be destroyed.

In addition, since the inside of the storage contains an extremely large amount of water, it is very difficult to perform the repairs such as drying using a large dryer, and a long-term construction is required.

An object of the present invention is to eliminate the disadvantages of the conventional example, and to provide an instant freezer in which gaps, looseness and cracks are less likely to occur even after repeated contraction and expansion, and which is easy to repair.

[0010]

In order to achieve the above-mentioned object, the present invention forms a heat insulating layer by a heat insulating material on the inner side surface of a room constituted by a skeleton, and in the wall and ceiling part, the steel is formed on the inner side surface of this heat insulating layer. In the instant freezer where the surface material is placed and the concrete is placed on the heat insulating layer on the floor, the heat insulating material that forms the heat insulating layer on the walls and ceiling is a synthetic resin film around the cushioning heat insulating material. Use the one that is pasted with a bag,
As the steel surface material, weatherproof steel plate with ribs is used, and in the floor part, a waterproof layer made of asphalt concrete is applied on the holding concrete, and the floor part forms a water gradient toward the entrance and exit. The gist is to provide an asphalt moisture-proof layer on the holding concrete surface including the concrete skirting that is continuously formed in the part.

[0011]

According to the first aspect of the present invention, since the heat insulating material forming the heat insulating layer in the wall and the ceiling portion has a cushioning property, the elasticity of the heat insulating material causes a gap due to cooling, and can follow shrinkage. Further, even if moisture is applied, it is repelled by the synthetic resin film so that the heat insulating performance is not deteriorated. wall,
Since the steel surface material of the ceiling portion is made of a weatherproof steel sheet with ribs, it does not corrode for a long period of time, and the uneven ribs can follow the temperature expansion and contraction.

On the floor, even if water remains, the waterproof layer made of asphalt concrete does not penetrate into the concrete below it, and even if unevenness occurs on the floor due to long-term use, the surface will not gas. It can be melted with a burner, etc., and local repair can be done easily.

According to the second aspect of the present invention, in addition to the above-mentioned function, drainage is facilitated in the floor portion, so that water hardly accumulates. According to the third aspect of the present invention, a waterproof layer made of asphalt concrete is provided. Since the asphalt moisture-proof layer is provided immediately below, the waterproof layer can reliably prevent water from penetrating into the concrete below.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional side view showing an embodiment of an instant freezer of the present invention, and FIG. 2 is a horizontal plan view of the same as above. Asphalt on the inner surface of the wall, ceiling and floor of a room 2 constituted by a concrete skeleton 1. The point that the moisture-proof layer 3 is provided is the same as the conventional example.

A heat-insulating layer made of a heat-insulating material is formed on the asphalt moisture-proof layer 3. As shown in FIGS. 3 and 4, according to the present invention, a cushioning heat-insulating material such as glass wool 12 is provided around polyethylene or polyester. A bag made of a synthetic resin film 25 such as that shown above was used and laminated. FIG. 3 shows a wall and a ceiling portion, but adjacent air-insulating materials such as bags are jointed with a rubber asphalt adhesive tape 13 to block ventilation.

A heat-proof stud bolt 7 is placed in the heat insulation layer by using an anchor on the concrete skeleton 1, and the base wood 6 is attached to the tip of the heat insulation stud bolt 7. A weatherproof steel plate 16 with a rib having a thickness of about mm is used and fixed to the base wood 6 with a stainless screw 17. At this time, since the base wood 6 and the stud bolt 7 penetrate the heat insulating layer, the stainless steel screws 17 are used to fix the screws on the surface of the heat insulating material by the rubber asphalt adhesive tape 13.
After pasting, do from above.

Further, a draining plate 18 is arranged at the end of the ribbed weather resistant steel plate 16, and a clearance of about 30 mm is provided between the draining plate 18 and the steel plate 16 in order to ensure the elasticity of the steel plate 16. Keep it.

In the floor portion, as shown in FIG. 4, a heat insulating material is laid on the concrete skeleton 1. This heat insulating material may be a heat insulating board such as expanded polystyrene board 4 or urethane board as in the conventional case. Provide an asphalt moisture-proof layer 19 with epoxy asphalt dairy material to smooth the surface,
Further, a pressing concrete 8 is placed thereon, and an asphalt moisture-proof layer 19 of epoxy asphalt dairy material is provided on the surface of the concrete 8. The holding concrete 8 has a concrete skirting board 9 at the end of about 300 to 500 mm for cleaning the floor surface.
The asphalt moisture-proof layer 19 is provided including the surface of the concrete skirting 9, although it is integrally formed at a certain height and rises.

Then, a waterproof layer of asphalt concrete 20 is applied on the asphalt moisture-proof layer 19 of the holding concrete 8 by about 50 mm. This asphalt concrete
20 is for road pavement in cold regions, and has a role as a finishing material for the holding concrete 8 and also has waterproofness and repairability.
Furthermore, an asphalt moisture-proof layer 19 made of epoxy asphalt dairy material is provided thereon.

Further, as shown in FIG. 2, the floor portion forms a water gradient 22 which is lowered toward the entrance where the heat insulating door 21 is located.
Outside the entrance on the water side of the water gradient 22, a U-shaped groove 24 is formed under the platform 23 so as not to obstruct the passage of the forklift, and drainage by the water gradient 22 is made into the U-shaped groove 24. I made it easy to wash with water and kept hygienic at all times.

In this way, since the heat insulating material such as glass wool 12 forming the heat insulating layer on the walls and ceiling has a cushioning property, its elasticity does not cause a gap due to cooling, and it is possible to follow the contraction, and the moisture content Even if it gets damaged, it will be repelled by the synthetic resin film 25. On the other hand, the ribs of the weatherproof steel sheet 16 with ribs on the walls and the ceiling have an expansion effect on cooling.

In the above embodiment, the case where the skeleton is a concrete skeleton has been explained, but as another embodiment, the present invention can be similarly applied to the case where the skeleton is a steel skeleton. In this case, as shown in FIG. 5, a weather resistant steel plate 27 is attached to a steel frame furring strip 26 as a steel frame base, and a cushioning heat insulating material such as the glass wool 12 is provided on the periphery thereof and a synthetic resin such as polyethylene or polyester is provided around the heat insulating material. A heat insulating layer formed by laminating heat insulating materials that are bag-sealed with the film 25 is provided.

[0023]

As described above, in the instant freezer of the present invention, the members such as the surface material on the walls and the ceiling can follow the contraction even during cooling and can follow the temperature rise after the cooling is completed. Even after repeated contraction and expansion, gaps, looseness and cracks are unlikely to occur, and since the cushioning material of the heat insulating layer is used, it can be used without repair for a long time in terms of performance. On the other hand, the floor is highly waterproof and can follow hard use such as freezing and cleaning, and even if unevenness due to floor wear occurs during forklift travel, it can be easily and quickly repaired with a gas burner and asphalt concrete. There is no need to stop operation for a long time for repair.

Further, by using asphalt concrete for finishing the floor surface, it is possible to prevent cracks and cracks from being generated on the surface and maintain the waterproof performance for a long time.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a flash freezer according to the present invention.

FIG. 2 is a cross-sectional plan view showing an embodiment of the instant freezer of the present invention.

FIG. 3 is a vertical sectional side view showing details of a wall and a corner portion of a ceiling.

FIG. 4 is a vertical sectional side view showing details of a floor and a skirting board portion.

FIG. 5 is a vertical sectional side view of a wall portion showing another embodiment of the instant freezer of the present invention.

FIG. 6 is a vertical sectional side view showing a conventional example.

[Explanation of symbols]

1 ... Concrete skeleton 2 ... Room 3 ... Asphalt moisture proof layer 4 ... Expanded polystyrene board 5 ... Keystone plate 6 ... Base wood 7 ... Stud bolt 8 ... Pressing concrete 9 ... Concrete baseboard 10 ... Checker plate 11 ... Base angle material 12 ... Glass wool 13… Adhesive tape 16… Ribbed weatherproof steel plate 17… Stainless steel screws 18… Drainer plate 19… Asphalt moisture barrier 20… Asphalt concrete 21… Heat barrier 22… Water slope 23… Platform 24… U-shaped groove 25… Synthetic resin film 26 … Steel frame edge 27… Weatherproof steel plate

Claims (3)

[Claims] 1. A heat insulating layer made of a heat insulating material is formed on an inner surface of a room constituted by a skeleton, a steel surface material is arranged on an inner surface of the heat insulating layer at a wall and a ceiling portion, and on a heat insulating layer at a floor portion. In the instant freezer where the holding concrete is placed on the wall, the heat insulating material forming the heat insulating layer of the wall and the ceiling is made of a cushioning heat insulating material that is wrapped in a bag with a synthetic resin film.
The steel surface material is a weatherproof steel sheet with ribs, and in the floor, a waterproof layer made of asphalt concrete is applied on top of the holding concrete. 2. The flash freezer according to claim 1, wherein the floor portion forms a water gradient toward the entrance / exit. 3. The instant freezer according to claim 1 or 2, wherein an asphalt moisture-proof layer is provided on the surface of the pressing concrete, including the concrete baseboard integrally formed at the end.