JPH03102169A - High-humidity and low-temperature storage cabinet - Google Patents

Abstract

PURPOSE:To protect stored foodstuffs from dew droplets and sanitarily control the same by a method wherein dew droplets receiving plates made of metal and coated with a hydrophilic coating on their lower surfaces are drawable and slantingly disposed at the upper parts of storage chambers so as to be opposed to the top plates of boxes of good heat conductivity. CONSTITUTION:When cold air whose heat has been exchanged by an evaporator 22 is discharged into a cold air passage 8, air in an upper storage chamber 9 and a lower storage chamber 10 is indirectly cooled by the cold air via upper and lower boxes of good heat conductivity 6, 7. On the other hand, condensed dew droplets are formed on the inner surfaces of boxes of good heat conductivity 6, 7 by the external air infiltration because of the opening and closing of doors 2 and by the evaporation and dispersion of moisture contained in stored foodstuffs, and especially, condensed dew droplets dropped down from top plates 6A and 7A drop onto upper and lower dew droplet receiving plates 12, 13, respectively, and then drop onto the bottom plates of the boxes of good heat conductivity 6, 7 without wetting the stored foodstuffs on shelves 11. Thereupon, the condensed dew droplets finally pass through a lower drain pipe 17 to be discharged to the external side. Further, condensed dew droplets formed on the lower surfaces of the dew droplet receiving plates 12, 13 spread uniformly over the entire area of the lower surfaces of the dew droplet receiving plates 12, 13 without remaining as dew droplets due to the effect of a thin layer 15 formed by hydrophilic paint having water wetting properties and water retention properties, and moreover, are guided backward due to the effect of the inclined surfaces of the dew droplet receiving plates to be dropped onto the bottom plates through drain parts 12A, 13A.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a high-humidity, low-temperature storage chamber that indirectly cools a storage chamber defined inside an insulated box and maintains the storage chamber at high humidity. In particular, this relates to improvements to the dew catcher plate installed at the top of the storage room. (B) Prior art As a prior art, Japanese Utility Model Publication No. 60-2555 discloses that a dew catcher plate is provided on the ceiling of a cooler box to receive condensed water dripping from the upper wall of the cooler box. A condensation catching device for a humidifying refrigerator is disclosed, which is characterized by having a plurality of cold air passage holes whose periphery is bent upward. (c) Problems to be Solved by the Invention According to the conventional dew catcher, the condensed water dripping onto the dew catch plate is drained away without falling into the cooling chamber; The problem remains that the condensed water falls into the cooling chamber as water droplets and wets the food.

In addition, as a technology that solved this problem,
Publication No. 194283 exists. The dew-receiving plate is made of a porous sintered hydrophilic plastic plate. However, with this dew-receiving plate, dirt and water droplets penetrate into the plate, making it difficult to clean.
Due to the unsanitary conditions, the growth of mold was unavoidable, and the condensation plate had to be replaced regularly. In view of the problems of the prior art, the present invention provides a high-humidity, low-temperature storage warehouse that is equipped with a dew catch plate that protects stored foods from condensation water and that can be managed hygienically. .

(2) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a thermal conductive box which is provided inside a heat insulating box body having an opening/closing door at the front opening, and which is spaced apart from the heat insulating box body. is arranged, and the inside of the heat conduction box is used as a storage chamber, and a cooling means is arranged in the space between the heat insulation box and the heat conduction box, so that the storage chamber is indirectly cooled. In a high-humidity, low-temperature storage warehouse consisting of a storage room, a metal dew-receiving plate coated with a hydrophilic paint on the lower surface is provided, and the dew-receiving plate is pulled out in the upper part of the storage room, facing the top plate of the heat conduction box. This is a high-humidity, low-temperature storage warehouse that can be freely tilted.

Moreover, in order to solve the above-mentioned problem, the present invention disposes a heat conduction box inside a heat insulating box having an opening/closing door at the front opening, with a space between the heat insulating box and the heat conducting box. In a high-humidity low-temperature storage warehouse configured such that the inside of the guide box serves as a storage chamber, and a cooling means is disposed in the space between the heat-insulating box and the thermally conductive box to indirectly cool the storage chamber, A grid-like stripe is formed on the lower surface, and a metal dew catcher plate coated with a hydrophilic paint is provided on the lower surface, and the dew catcher plate is placed in the upper part of the storage chamber and is connected to the top plate of the heat conduction box. These are high-humidity, low-temperature storage warehouses that are arranged facing each other at an angle. Furthermore, in order to solve the above-mentioned problem, the present invention disposes a heat conduction box inside a heat insulating box having an opening/closing door at the front opening, with a space between the heat conducting box and the heat conducting box. In a high-humidity low-temperature storage warehouse configured such that the inside of the guide box serves as a storage chamber, and a cooling means is disposed in the space between the heat-insulating box and the thermally conductive box to indirectly cool the storage chamber, A pickling treatment is applied to form a rough surface on the lower surface, and a dew catch plate coated with a hydrophilic paint is provided on the rough surface, and the dew catch plate is placed in the upper part of the storage chamber, and the heat conduction box is This is a high-humidity, low-temperature storage cabinet that is arranged on an inclined plane facing the top plate.

(*〉Function According to the present invention, when the heat conduction box is cooled, the air in the storage room is indirectly cooled through the heat conduction box. At this time,
The condensed water that condenses on the top plate of the heat conducting box and falls from the top plate as water droplets is caught by the dew catch plate, and guided to the lower edge by the slope of the dew catch plate, without wetting the stored food. Wastewater is treated.

Therefore, a small amount of condensed water adhering to the bottom surface of the dew catch plate,
Due to the action of the hydrophilic paint, the surface tension is weakened, so water does not form into droplets and spreads over the entire lower surface of the dew catcher. Moreover, due to the slanting action of the dew catcher, the water is guided toward the lower end and avoids stored food. It falls from the lower edge of the receiving plate. On the other hand, dirt adhering to the lower surface of the dew catcher can be easily removed by removing the dew catcher and washing or wiping it with water.

In addition, if you apply hydrophilic paint on a grid-like streak or rough surface, the paint will adhere better, and if the paint peels off, the grid-like streaks or rough surface will be exposed. The dew condensation water is less likely to become water droplets in this part, and is guided toward the lower end by the tilting action of the dew catcher plate and falls from the lower edge of the dew catcher plate avoiding the stored food.

Example 1 The high-humidity low-temperature storage of the present invention will be explained below with reference to FIGS. The box body 1 is constructed by filling a heat insulating material between the inner and outer boxes.The inside of the heat insulating box body 1 includes an upper heat conduction box 6 and a lower heat conduction box 6 made of stainless steel, for example, which are opened at the front. A guide box 7 is fixed to all the inner wall surfaces of the heat insulating box body 1 at intervals, and the space thus formed is used as a cold air passage 8, and the upper heat conductor box 6 and the lower heat conductor box The inside defined by 7 is an upper storage chamber 9 and a lower storage chamber 10, respectively.Furthermore, in the vertical direction of each storage chamber 9, 10, a plurality of shelves 11 on which stored foods are placed are arranged. In the upper part of the upper storage chamber 9, there is an upper roof made of metal such as stainless steel, which faces the top plate 6A of the upper heat conduction box 6, which is tilted low to the rear, with a small distance. The receiving plate 12,
It is tilted rearward at a low angle of about 7 degrees, and is disposed so as to be freely drawn out toward the front opening direction. Similarly, the upper part of the lower storage chamber 10 also faces the top plate 7A of the lower heat conduction box 7 with a small distance therebetween. A lower dew receiving plate 13 made of metal such as stainless steel is tilted rearward at a low angle of about 7 degrees and is arranged so as to be freely drawn out in the direction of the front opening. These upper and lower dew receiving plates 12 and 13 are shaped like saucers with standing earthen walls on the front and both sides, and the low edge located behind the rear end of the shelf 11 is bent downward to form a draining portion 12A. ,13A
is formed. Furthermore, on the lower surface of the dew receiving plate 12.13,
As shown in the cross-sectional view in Figure 3, a hydrophilic paint is applied,
A thin layer 15 of hydrophilic paint is formed.

Such upper and lower dew receiving plates 12 and 13 are connected to the respective heat conducting boxes 6.
, 7, and is supported on support rails 14 fixed to both side plates of . In addition, the upper storage chamber 9 and the lower storage chamber 10 are connected to the lower dew receiving plate 1 by inserting the top plate 7A of the lower thermal conduction box 7 from the bottom plate of the upper thermal conduction box 6.
The lower storage chamber 10 and the outside are connected to each other through the upper drain pipe 16 facing upward from the lower storage chamber 10, and the lower storage chamber 10 is connected to the outside by passing through the bottom wall of the insulation box 1 from the bottom plate of the lower heat conduction box 7 and hanging outside the box 1. The water is conveyed through a lower drain pipe 17.

Furthermore, the top wall of the heat insulation box body 1 and the upper heat conduction box 6 facing thereto
In the cold air passage 8 between the top plates 6A, a unit power bar 21 having an air outlet 19 at the front and an inlet 20 at the rear is disposed as a cooling means.
1 houses a refrigerating system evaporator 22 and a cool air circulation blower 23 in front of the evaporator 22 facing the outlet 19.

The evaporator 22 is an electric compressor 2 placed on the top wall of the box 1.
4 and a condenser 25 to form a refrigeration cycle. 26 is a condenser air cooling fan.

In addition, a vertical partition plate 27 is disposed in the vertical direction in the cold air passage 8 between the rear wall of the heat insulating box 1 and the rear plate of the upper and lower heat conduction boxes 6 and 7 facing thereto, and a discharge passage 8A is provided. A return passage 8B is formed, and both passages communicate through a lower communication port 28. Furthermore, there is a cold air passage 8 between the bottom plate of the upper heat conduction box 6 and the top plate of the lower heat conduction box 7.
A horizontal horizontal partition plate 30 with a communication port 29 formed in the front part is provided. In the above configuration, the cold air that has undergone heat exchange in the evaporator 22 is discharged from the air outlet 19 to the cold air passage 8 by the blower 23, and is circulated in the path shown by the arrow in FIG. After cooling, it passes through the communication port 29 to cool the lower heat conduction box 7, passes through the return passage 8B from the lower communication port 28, and is returned to the evaporator 22 again from the suction port 20. As a result, the air in the upper storage chamber 9 and the lower storage chamber 10 is indirectly cooled through the upper and lower heat conducting boxes 6.7. Such an indirect cooling method for the storage compartments 9, 10
It is highly effective as one of the requirements for maintaining high humidity. By the way, dew condensation occurs on the inner surfaces of the heat conduction boxes 6 and 7 due to the entry of outside air due to the opening and closing of s2 and the evaporation of moisture in the stored food.
In particular, the condensed water that falls from the top plates 6A and 7A falls onto the upper and lower dew receiving plates 12 and 13, respectively, and heats the stored food on the shelf 11 from the draining parts 12A and 13A at the lower edges without wetting them. It falls onto the slope at the bottom of Ryodobako 6.7. The dew that has fallen onto the bottom plate of the upper heat conduction box 6 further passes through the upper drain pipe 16 and falls onto the lower dew receiving plate 13, and from the draining portion 13A of the lower edge of the lower heat conduction box 7. It falls onto the bottom plate and is drained outside through the lower drain pipe 17. In addition, dew condensation also occurs on the dew receiving plate 12.13, although not as much as on the inner surfaces of the heat conduction boxes 6 and 7. In particular, dew condensed on the lower surface of the dew receiving plate 12.13 impairs water wettability and water retention. Due to the action of the thin layer 15 of the hydrophilic paint, water droplets do not form.
It spreads uniformly over the entire lower surface of the dew catcher plates 12 and 13, and is guided backward by the action of the slope of the dew catcher plates 12 and 13, and falls onto the bottom plates of the heat conduction boxes 6 and 7 in the draining sections 12A and 13A. ．． Next, other embodiments of the present invention will be described.

As clearly shown in FIG. 4, which shows an enlarged view of the lower surface of the dew receiving plates 12 and 13, in this embodiment, a lattice-like stripe 31 is formed on the lower surface of the dew receiving plates 12 and 13, and on top of that, Similarly, a hydrophilic paint is applied to form a thin layer 15 of the hydrophilic paint as shown in FIG. In yet another embodiment of the present invention, as shown in FIG. 6, the lower surface of the exposure plate 12.13 is pickled to form a rough surface 32, and a hydrophilic paint is applied thereon. , No. 715
A thin layer 15 of hydrophilic paint is formed as shown in FIG.

Due to the action of these lattice-like stripes 31 and rough surfaces 32, the paint adheres well, and even if the thin M15 should peel off, the lattice-like stripes 31 and rough surfaces 32
2.13 Since it is exposed on the lower surface, the surface tension is weakened by the action of the lattice-like stripes 31, the so-called capillary phenomenon, or by the action of the rough surface 32, so that water wettability and water retention are maintained. The dew that has condensed on the lower surface of the dew catcher plate 12.13 can be removed without turning into water droplets.
It spreads over the entire lower surface of 13, is guided backward by the action of the slope of the dew receiving plates 12 and 13, and falls from the draining parts 12A and 13A onto the bottom plates of the heat conduction boxes 6 and 7. As described above, the invention prevents dew condensed on the underside of the dew catching plate from becoming water droplets by the action of the hydrophilic paint applied to the underside of the dew catching plate, and the tilting action of the dew catching plate prevents the dew catching plate from becoming water droplets. Since the water falls from the low edge of the container, it is possible to effectively prevent condensed water from falling onto the stored food. In addition, the dew catch plate can be removed and dirt can be easily cleaned, allowing the dew catch plate to be managed hygienically. Furthermore, in the present invention, the lower surface of the dew receiving plate is subjected to lattice-like streaks or pickling treatment to form a rough surface on the lower surface of the dew receiving board, and a hydrophilic paint is applied thereon. In addition to improving the coating properties, even if the hydrophilic paint is peeled off, it can continue to maintain water wettability and water retention, making it even more effective in preventing dew condensation from falling.

[Brief explanation of drawings]

Fig. 1 is a front view of the low temperature storage of the present invention with the door removed, Fig. 2 is a vertical side view of the low temperature storage of the present invention, Fig. 3 is a partial sectional view of the dew receiving plate, and Fig. 4 is FIG. 5 is a partially enlarged view of the lower surface of the dew catch plate before painting of another embodiment of the present invention, FIG. 5 is a partial cross-sectional view after the dew catch plate is painted, and FIG. FIG. 7 is a partially enlarged view of the lower surface of the board before painting, and FIG. 7 is a partially sectional view of the board after being painted. 6A, 7A... Top plate, 2, 13... Dew receiving plate, layer, 31... Grid-like stripes, 9, 10... Storage room, 1 15... Thin layer of hydrophilic paint 32 ···Rough surface.

Claims (1)

[Claims] 1. A heat conduction box is disposed inside a heat insulation box having an opening/closing door at the front opening, with a space between the heat insulation box and the inside of the heat conduction box. In a high-humidity, low-temperature storage warehouse configured to serve as a storage room and to indirectly cool the storage room by disposing a cooling means in the space between the heat-insulating box and the heat-conducting box, a hydrophilic paint is applied to the lower surface of the storage room. A high humidity storage device characterized in that a metal dew catch plate coated with is provided, and the dew catch plate is arranged at an angle in the upper part of the storage chamber, facing the top plate of the heat conduction box so that it can be freely pulled out. Cold storage. 2. A heat conducting box is disposed inside the heat insulating box with an opening/closing door at the front opening, with a space between the heat conducting box and the heat conducting box, and the inside of the heat conducting box is used as a storage room. In a high-humidity, low-temperature storage warehouse configured to indirectly cool the storage chamber by disposing a cooling means in the space between the heat-insulating box and the heat-conducting box, grid-like stripes are formed on the lower surface of the storage chamber. A metal dew receiving plate coated with a hydrophilic paint is provided on the streaks, and the dew receiving plate is arranged at an angle in the upper part of the storage chamber, facing the top plate of the heat conducting box. High humidity low temperature storage. 3. A heat conducting box is disposed inside the heat insulating box with an opening/closing door at the front opening, with a space between the heat conducting box and the heat conducting box, and the inside of the heat conducting box is used as a storage room. A cooling means is disposed in the space between the heat insulation box and the heat conduction box, and in a high humidity low temperature storage warehouse configured to indirectly cool the storage chamber, pickling treatment is performed to form a rough surface on the bottom surface. a dew receiving plate coated with a hydrophilic paint on the rough surface, and the dew receiving plate is arranged at an angle in the upper part of the storage chamber, facing the top plate of the heat conducting box. A high-humidity, low-temperature storage facility featuring: