JP2019082096A - Condensation prevention method - Google Patents

Abstract

To solve the situation that the conventional shipping food room has a problem that condensation is caused by using a heat insulating material or a surface material having a large volume, and there is a major problem that, when condensation occurs, mold grows and mold spores dance.SOLUTION: By using an extremely thin aluminum foil which is weak to convective heat transfer as it appears on the surface of the ceiling of the food chamber wall, the outside air temperature and the temperature of the aluminum foil surface material can be integrated when the outside air flows, and condensation can be prevented.

Description

  The present invention relates to a method for preventing condensation on a food stock room (hereinafter referred to as a "food room") near and near a food storage port.

  It is a well-known fact that dew condensation occurs due to the difference in temperature between inside and outside of the room, so that the prior art does not allow outside air temperature to enter the food room, and foam insulation or fiber insulation is placed on the roof or wall. It has taken in.

  Further, the heat insulating material needs a surface material such as gypsum board or vinyl chloride cloth because it can not be exposed from the problem that the strength is weak or moisture is easily absorbed.

  Furthermore, it is customary to cool the food room with an air conditioner or the like in order to keep fresh food in stock.

Patent No. 549 7 393

  In the conventional structure described above, since both the heat insulating material and the surface material are thick materials (hereinafter referred to as "cold storage material"), even when the food room is warmed up by opening the shutter of the storage port, it cools once. The cut cold accumulated material takes time until the temperature rises moderately and integrates with the outside air temperature, and dew condensation occurs due to the collision between the high outside air temperature and the moderately cold accumulated cold material.

  An object of the present invention is to solve the problems of the conventional structure and to provide a structure that does not cause condensation to occur in the food room.

Means to solve section

  And in order to achieve the above-mentioned object, the present invention made aluminum foil which is very weak to convective heat and easy to conduct heat on the surface of a structure of a food room as a surface material.

  In addition, the aluminum foil of the surface material is a 7-layer structure sheet (hereinafter referred to as "heat-shielding sheet") of 2 front and back aluminum foils of 7.2 micron ultra-thin type, 3 layers of polyethylene sheet and 2 layers of bubble type polyethylene sheet )It was used.

  Furthermore, the aluminum foil of 76 microns thick on the front and the aluminum foil on the back are 7.2 microns thick, around 1 m above the floor susceptible to shock, and three layers of polyethylene sheet and two layers inside A seven-layer structure sheet of bubble type polyethylene sheet (hereinafter referred to as "one-sided heat shielding sheet") is used.

  Although the above-mentioned heat shield sheet or single-thickness heat shield sheet is used in the structure of the present invention, other materials such as metals can be used if they are materials which are rapidly affected by convective heat, and good results can be obtained. .

  Heat shield sheet and half thickness heat shield sheet used on the surface of the structure, when the storage port is opened at the time of shipment, warmth of the warm air moves from the warm side to the lower side and enters the food room as it is described in the thermodynamics At the same time, it collides with aluminum foil which is extremely weak in convective heat, and the outside air temperature and aluminum foil temperature will be integrated quickly.

  As described above, the heat shielding sheet or the single-thickness heat shielding sheet attached to the outside air temperature and the wall ceiling of the food room can prevent the occurrence of condensation since the temperature is almost the same.

Effect of the invention

  In other words, this patent is a unique concept construction method in which a problem substance which is originally extremely weak to convective heat is taken against the hand and this weak point is effectively used to prevent condensation.

Effect of the invention

  As described above, the method of the present invention can provide a method in which condensation does not occur when the product is unloaded from the food room.

  Further, if condensation occurs, mold always occurs. Mold is a trichosporon species, and invisible spores are scattered and attached to food. In recent years, it has been found that aspiration of this spore induces acute pneumonia, which is called trichosporon disease. Therefore, the present invention can prevent health problems caused by mold.

Heat shield sheet sectional view used for food room ceiling wall surface of the present invention Food room construction cross section of the present invention Single thickness type heat shield sheet cross section

  Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 3.

  Food Room 6 of FIG. 2 is a cross-sectional view of a wall and a ceiling of the food room in which the spacer 5 is provided on the base material 4 with the heat shield sheet shown in FIG.

  A stationary air layer 7 was obtained by providing a spacer 5 between the base material 4 and the heat shield sheet of FIG. Due to the presence of the static air layer, it is possible to relieve the change in temperature of the aluminum foil 1 on the front surface from the conduction heat transfer to the base material on the back surface.

The heat shield of FIG. 1 has an aluminum foil thickness of about 7.2 microns on both the front and back surfaces, but in consideration of the possibility of impact, a heat shield sheet capable of withstanding about 76 microns only on the surface was prepared. The heat shield sheet of this thickness is suitably used around 1 m from the floor.

Originally, materials called interior materials such as plywood, gypsum board and vinyl cloth are installed on the surface of the building, but since the object has a volume, when it is hot, it becomes a heat storage body, and when it is cold, it becomes a cold storage It has occurred frequently.
Therefore, the present invention is also characterized in that those members are eliminated.

  As described above, by constructing the wall ceiling of the food room, it is possible to obtain a space free from the occurrence of condensation and the subsequent occurrence of mold.

1 7.2 microns thick aluminum foil 2 polyethylene sheet 3 bubble type polyethylene 4 ceiling base material 5 spacer 6 heat shield sheet 7 still air layer 8 wall base material 9 aluminum foil around 76 micrometers thick

Claims (3)

  A method of construction in which dew condensation is prevented by using a very thin aluminum foil sheet of 7.2 microns which is weak to convective heat transfer as a surface material of a wall for food in the shipping room or in the vicinity of an entrance.   On the wall surface about 1 m from the floor susceptible to impact, the construction method near the food room for shipping or the entrance and exit using a heat shield sheet with a thickness of around 76 microns only on one side.   A method of constructing a shipping food room having a still air layer obtained by providing a spacer in the space between the heat shield sheet and the base material or a wall ceiling near the entrance or exit.

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