JPS6147175A - Thawing machine - Google Patents

Abstract

PURPOSE:To thaw and preserve a material to be thawed with retained high freshness without causing dew condensation nor dripping in food, by keeping water in a cooling tank provided in the wall surface of the machine always at a specific low temperature, and operating a blower through a timer in thawing. CONSTITUTION:Water in a water tank 3 mounted below a thawing machine 1 is cooled with a refrigerator 8 constituted of a compressor 14, condenser 13, cooler 16, etc. and circulated through a pump 4, cooling tank 2 surrounded by the inside wall of the inside wall of the thawing machine 1 and a piping connecting the upper part thereof to the water tank 3, and the temperature in the water tank 3 is always kept at 0 deg.C by controlling with a thermostat 7. On the other hand, a blower 5 is operated if necessary through a timer 6, and air in the machine 1 is heated to about 2 deg.C to thaw naturally a food 12 to be thawed and placed on shelves 11. At the completion of the thawing, the blower 5 is stopped by the timer 6 to restore the interior of the machine 1 directly to a low temperature (0 deg.C) and high humidity (>=95%).

Description

[Detailed description of the invention] Industrial applications This invention relates to a thawing machine for frozen foods.

Conventional technologyWater has a large specific heat, but this water is used to distribute cooling water, and for thawing, a heater is placed in the cooling water tank, and the heater heats the cooling water to adjust the temperature. An attempt was made to thaw the ship by measuring its rise. There are also some that use a refrigerator.

Problems to be Solved by the Invention The most inconvenient point with the conventional means described above is that, for example, in the method of using cooling water and heating with a heater, as mentioned above, the specific heat of the water itself is large. Therefore, it is easy to raise the temperature, but it takes a long time to lower it.

Although it is ideal to thaw only the necessary amount, in reality it is difficult to thaw only the necessary amount. Therefore.

Food must be preserved after thawing. In other words, once thawed food cannot be frozen again, its preservation becomes an important issue. However,
The aforementioned thawing machine that uses water and a heater requires a long time to return the heated water to a low temperature, so it is extremely difficult to store it after thawing. Moreover, during thawing, steam condenses on the surface of the food to be thawed, turning the food into a watery color. Furthermore, in the case of refrigerators, there are large temperature differences within the refrigerator itself, and if the temperature rises after thawing, drips will appear, spoiling the taste of the food, and causing a loss of nutrients.

Means for Solving the Problems This invention was proposed in view of the problems mentioned above in order to solve the problems.A cooling tank is attached to the inside wall of the machine, and cooling is carried out in a water tank installed at the bottom of the machine. The cooling tank is connected to this water tank, and the water in the water tank is maintained at 0°C at all times.When thawing, a blower installed inside the aircraft is operated via a timer to cool the air inside the aircraft. Thawing is characterized by raising the temperature to about 2'C to thaw the object, and furthermore, when thawing is completed, the blower is stopped by a timer to maintain the interior of the machine at a low temperature and high humidity again. The aim is to provide the opportunity.

Operation This invention is as described above (therefore, the interior of the aircraft is always 0°C).
It is maintained at
This activates, promoting air circulation within the cabin, and the internal temperature naturally rises to approximately 2°C, allowing the frozen food on board to thaw naturally. Furthermore, after thawing is complete, the blower is stopped again by the timer, and the inside of the machine becomes a low temperature, high humidity ice storage again, making it possible to preserve the thawed food inside the machine for a long time.

EXAMPLE Hereinafter, an example of the present invention will be described in detail with reference to the accompanying drawings. (1) is a thawing machine, and a cooling tank (2) is surrounded inside the wall of this thawing machine. This cooling tank (2) is connected to a water tank (3) installed below the thawing machine (1) and containing cooling water, and a pump (4) is connected to the bottom of the water tank (3). The cooling tank (2) is connected to the lower part of the cooling tank (2) via the cooling tank (2), and the upper parts of each of the cooling tank (2) and the water tank (3) are connected to enable circulation of cooling water. Moreover, a blower (5) is installed inside the cooling tank (2).
), and this blower (5) is connected to a timer (6). Furthermore, a thermostat (7) to which the temperature inside the machine is always maintained at 0"C is connected to the timer (6) and the refrigerator (8).

In addition, the symbol (9) in the figure is a heat insulating material, and the door Q
The inside surface of l is filled. αD is a shelf on which the food to be thawed is placed, and is preferably made of a net-like material. αδ is the food to be thawed, the eel is the condenser, the side is the compressor, and the target is the outlet of the blower (5).

QE9 is a cooler, which is arranged in the water tank (3) and
3) Cool the water inside.

Since this embodiment has the configuration as described above, the cooling tank (2
) is constantly maintained at o-C by a thermostatic force and is therefore suitable for food preservation.

When the food to be thawed is to be defrosted, the food is placed on the shelf inside the machine and the blower (5) is operated via the timer (6). After that, the air inside the plane rises to about 2°C. This air temperature allows the object to be thawed naturally. When the defrosting is completed, the timer (6) stops the processor (5).

The next step is to immediately reduce the temperature (0'C) and high humidity (9'C) inside the aircraft.
5 pieces or more), and the food to be thawed is stored in ice, maintaining its freshness forever.

Effects of the Invention Since the present invention is as detailed in the above-mentioned embodiments, the food to be thawed is naturally thawed at an air temperature of about 2°C, so there is no dripping on the food unlike in the past. . That is, in the past, defrosting was carried out by increasing the temperature by 3° C. or more, which inevitably caused drips in the thawed food, impairing its taste. As a result, the air temperature inside the machine was allowed to rise naturally to a temperature of 100 °C by operating a blower installed inside the machine, and as a result, the above-mentioned failure was resolved. However, since there is no condensation inside the machine, the humidity can be maintained at 95 degrees or higher, and the above 2 degrees
Natural thawing is possible due to the thawing effect caused by the temperature of C.
Since there is no condensation on the surface of the food and no drips, high freshness can be expected.

Once thawing is complete, simply stop the blower via the timer and the air temperature in the cabin will be restored to low (0'C) or high temperature (95 degrees or higher) Ic, so that the thawing is complete. Food can be stored in ice, allowing it to be preserved for a long time.

In this way, if you use the thawing machine of the present invention, you can thaw seafood or meat that you bought frozen the night before.
There is no loss of freshness due to instant defrosting as in the past.
This invention is truly an invention that brings about various great effects, such as thawed food that can always be preserved as a highly fresh, delicious, and highly nutritious food.

[Brief explanation of drawings]

The drawings show an implementation of the present invention. Fig. 1 is a vertical side view of the entire structure, Fig. 2 is a longitudinal sectional side view of the same, and Fig. 3 is a wiring diagram. Code explanation

Claims (1)

[Claims] A cooling tank is attached to the inside wall of the machine, and a cooler is placed in the water tank attached to the bottom of the machine.The cooling tank is connected to this water tank, and the water in the water tank is always maintained at 0℃, and a timer is set when defrosting. By operating a blower disposed inside the machine through the machine, the air temperature inside the machine is raised to about 2°C to thaw the object to be thawed, and further, when the thawing is completed, the blower is stopped by a timer, A thawing machine that maintains the inside of an aircraft at a low temperature and high humidity state again.