JPS6183851A - Cold heat packaging vessel material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention This invention is disclosed in Utility Model Publication No. 30302 of 1972 and No. 128 of the same year.
42, Utility Model Publication No. 26931 of 1972, and Utility Model Publication No. 16609 of 1972, which are related to patent applications for ice cream, milk containers, youth drinking water containers, other foods, medicines, and indoor cooling and heat storage. In order to do this, a cold storage heat medium is introduced into a deformable thin tube in a general molded container, or a divided thin tube such as a cardboard box, and both ends are sealed and connected with a connecting tape. Wrapping and insulating with a heat insulating film, freezing, heating, storing cold heat, inserting it into an outer container, placing the object to be cooled in the center or side of the container, storing cold heat and storing cold heat. This is the content of cold and heat applied to packaging containers and cold materials on the walls of houses.

In general, containers made of paper, styrofoam, or plastic are known as the outer packaging for ice cream containers, but department stores sell ice cream that softens and liquefies while being carried, giving it a flavorful taste. It was not possible to do so, and the development of a cold storage container was required.

In addition, the use of dry ice for this cooling is increasing year by year.
Its maintenance costs have become expensive, and there has been a need to reduce them.

Also, delivery of other drinking water, pharmaceuticals, industrial materials and other foods,
When packaging and transporting semen, raw fish, etc., it is necessary to keep them cool at a certain temperature or lower to prevent deterioration, and there has been a demand for the development of containers with high cold retention effects.

In addition, as this cold storage material, a generally known example of high viscosity is a cold storage bag in which a starch gel is sealed in a plastic bag.
There is a well-known method for keeping things cool, but although this cold storage bag structure is a rectangular, thick-walled polyvinyl or film bag with a cold storage body sealed in it, it is not suitable for quick freezing. When used in a small volume in an ice cream container, the thermal conductivity is low, so the cold insulation effect is small, which is inconvenient, and the storage area is greatly reduced.
Rapid freezing and cooling in liquefied gas tended to require too much immersion cooling time.

In addition, although Styrofoam containers have high insulation properties, they do not have a cold storage effect, and if cooling becomes difficult due to a power outage or other reasons, they do not have the ability to retain cold for a long time, and solid carbon dioxide such as dry ice When using gas, the disadvantage was that the amount of heat dissipated gradually increased and the cooling coast became expensive.

Furthermore, in large refrigeration rooms, a refrigeration compressor is generally installed inside the room, which increases the noise and requires sound insulation and an extension of cold storage time during power outages.

In addition, with the recent development of thermal containers for hiking, etc., there is a need to keep coffee drinks and hot dog foods warm in the winter, and metal powder and carbon mixtures and metal carbide are used to heat eel and instant foods. In conjunction with the development of a heat source for the melting reaction, there was a need to develop a container suitable for extending the heat storage time.

For this reason, the present invention creates a group of thin tubes and connects them to form a series parallel structure, and uses this method of connecting each thin tube so that the cold storage bag can be more rationally accommodated in the outer container. In addition, as a flexible thin tube, it can be bent and fitted tightly into the inner wall of the outer container with a small capacity, and exhibits a cold storage heat effect, and the thin tube structure prevents loss due to heat convection by isolating it. At the same time, the thin tube structure enhances the rapid cooling effect of a coolant source such as liquid nitrogen gas, and the accumulation of heat insulating films prevents an increase in the amount of heat dissipation. We have developed a heat storage container suitable for use as a heat source for the dissolution and oxidation reaction heat of metal carbide and metal powder, and we have also developed a heat storage container that is suitable for use as a heat source by utilizing the heat from the dissolution and oxidation reaction of metal carbide and metal powder. It is suitable for use as a heat absorbing medium in solar heat exchangers, to prevent noise pollution in freezers and houses, and as a heat storage medium, by taking advantage of the sound insulation effect produced by the process, and for use in containers for ships and vehicles. As a result, even when used as a portable container such as ice cream, it maintains the cold retention effect for more than 3 hours, and can be used at any time for processing ice cream by freezing cold storage, or as a heat-generating container. Heat retention can be maintained for a long time, and noise pollution can also be reduced by 20 to 60 decibels due to the filling of refrigerant liquid, metal powder, and metal carbide powder. This is an industrially useful invention that has the effect of alleviating noise from airplanes, airplanes, and machinery.

The manner of carrying out the invention will be explained below with reference to the drawings.

In the figure, polypropylene, polyethylene, polyvinyl chloride, polycarbonate polyamide, polyester, polyacrylic cellulose ether, the same ester, A, B,
Hydrocarbons such as tar pitch, parapine, etc. are added to plastic tubes made of S resin and vegetable fiber tubes such as pulp straw rods.
Oil-impregnated paper impregnated with stearin, boron pine resin, etc., water-resistant paper tubes impregnated with plastic sol, metal or metal foil laminate tubes, glass-ceramic tubes, and hollow corrugated tubes of corrugated cardboard water-resistant structure ( 1), (1') are cut into pieces with a diameter of 1 to 20 mm and a length of 36 to 100 mm, and a cold storage medium (3) and a cryogenic agent (3) are placed inside the thin tubes (1) and (1'). and a metal powder mixture, and heat-seal both ends of the capillary tubes (1) (1') as ends (2) (2') to seal them to prevent leakage of the internal chemical solution. ′) Create a space (■) necessary for unsampling thermal expansion and vibration.

In addition, flexible tubes (B) (B') are made inside the fused ends (2) (2') of the thin tubes (1) (1'), so that they can be bent freely by compression. , the first to be molded
Figure (B) shows the bent sides of the flexible tubes (B) and (B'), and Figure 2 shows the thin tubes (1) and (1') arranged in parallel and carbonized. The thin tubes (1) and (1') are partially sewn using strings (4B) and (4B') made of fibers, glass fibers, metal fibers, and synthetic fibers, and the upper surfaces thereof are crimped and connected using a pressure bonding tape.

However, since the cardboard-shaped one is made of polyethylene polypropylene or polyurethane and is connected from the beginning, this is not necessary.

Next, thin plastics and sponge films are laminated into the connected thin tube bands (A) to form a cold storage body, and the center is placed in an insulated outer container (6) with the objects to be cooled (9), (9'), ( 9'
Create a space (9A) for the container (6) to insert the thin tube (1) into the upper surface of which the insulation packing (8') is inserted into the bottom of the container (6).
) (1') is bent inward and inserted, and the object to be cooled (9A) is inserted into the central space (9A).
9'') in the bottom, load the heat insulating packing (9B'), load the object to be cooled (9'), and connect the upper part of the object to be cooled (9) to the flexible tube (B) of the thin tube band (A). ), in
It is bent inward, a heat insulation board (8) is placed on top of it, and the top lid (7) of the container (6) is fitted thereon.

To explain the mechanism of action, in the case of cooling, the capillary band (A) is placed in a tank containing liquid nitrogen gas or carbon dioxide gas in advance, and after immersion for about 0.2 to 1 minute, it is pulled out. It can be fried and instantaneously cooled to below -60°C, or it can be cooled by spraying liquid gas, or it can be cooled by placing it in a freezer to condense the cold storage medium (3) and cryogenic agent (3') in the tube zone. , in the freezer,
Keep cool at -40 to -80℃.

After that, it is deformed and inserted into the container (6) to fill the internal space (9).
A) Insert the heat insulating packing (8) into the bottom of the inside and insert the thin tube (
Bend the flexible tube (B) at the bottom of A) and insert it into the ice cream container. ) and insulation packing (9B), and then the object to be cooled (9)
is loaded on top of the tube, the flexible tube (B) of the thin tube band (A) is bent inward, and the insulation packing (8
), and then fit the top cover (7).

Then, hang the container (6) using the hanging string (7') connected to the side of the container.
When hanging and carrying, the flexible tube (B) of the thin tube band (A) is bent, and the object to be cooled (9),
(9'), (9■) and insulation packing (9B), (9B
') and (8) at the same time and consume the ice cream.

Generally, this ice cream container is often placed in a single paper container. In this case, when left at room temperature of 35°C, the ice cream changes from creamy to liquefied in about 30 minutes, and the ice cream changes from creamy to liquefied to the Styrofoam container. When using a container with a wall thickness of 10 mm, it will liquefy for about 50 minutes, but
In the case of the present application, the ice cream does not liquefy even after about 3 hours in the case where the thin tube band (A) is bent to form a triple wrap and the object to be cooled is inserted inside it. It is effective for long-distance transportation and cold storage, and this tubular zone (
Figure 5 shows the relationship between the number of turns and the liquefaction time of the ice cream when A) is spirally wound in a circular shape.When the number of turns is 6 layers, the ice cream retains the ice for about 8 hours. be done.

This is because when the refrigerant in a thin tube is frozen and cooled, heat exchange takes place within a limited narrow tube, and it takes a considerable amount of time for the heat convection to act on other tubes. This is because the refrigerants in each pipe have a property of gradually cooling each other, and losses due to heat convection are not small.

Therefore, they are useful for refrigerated transportation of beverage containers other than ice cream, pharmaceutical semen, chemicals, aquatic and livestock products, their processed products, other foods, raw and young fish, etc. This results in faster refrigeration efficiency in the freezer or by cooling with liquid gas.

Further, as shown in Fig. 6, thin tubes (1) (1') are arranged vertically on the surface of the concrete wall (C) at regular intervals, and concrete is further applied on top of the thin tubes (1) and lath (d). The concrete film (2C) is applied to the top, and the tubular zone (A
) are arranged perpendicularly and laterally, and the lath (d')
The concrete membrane (2C') is applied and joined to the heat insulating block wall (e).

In such cases, not only will the noise of the refrigeration motor fan in the refrigeration room be insulated, but it will also have a cold storage effect, even during a power outage.
To maintain the temperature of -40℃ and reach the room temperature of 30℃
Keeps cold for 4 hours or more.

Therefore, by taking advantage of this feature, they are useful as refrigerated containers and container building materials, and can also be used as heat storage bodies by pasting them on the inside of metal roofs, and as media for heat exchangers. It is effective as a sound insulator for noise from airplanes, ships, automobiles, trains, etc., and is also the subject of a related patent application for sound insulating signboards, Publication of Utility Model No. 14383 of 1982. Furthermore, this group of thin tubes containing refrigerant and heat medium is also fireproof.

In addition, when this cold storage heat body is used together with solid dry ice, the consumption of dry ice can be reduced by 30% due to the cold storage effect. On the contrary, when used together, the heat retention effect is maintained,
When used in combination with a heat storage medium, the amount of oxidation consumed in metal carbide and metal powder can be reduced by as much as 20%, and the load weight when carried can be reduced by more than 30%.

Examples of the cold storage heat medium used in this invention include starch, fermented starch, hydrates of C, M, and S cellulose ethers, hydrocarbons such as carbon tetrachloride, wax, liquid parapine, glycol, and castor oil. , fats and oils such as lard, coconut oil, hydrogenated oil, stearin, sodium silicate water, silicic acid deltide, flumic acid gelled product, Glauber's salt hydrate, and other salts are used.

In addition, as cryogenic agents, ammonia nitrate, ammonium chloride, urea, sodium ferrocyanide, sodium thiosulfate, mirabilite salt, caustic soda, and hydrated salts of calcium chloride are used as thickeners, heat insulating materials, and glass ceramics as heat storage media. A mixture of metal metal oxide and metal carbide is used.

When using the cryogenic agent and the cold storage heating element, there are two methods: one is to seal the two in a single capillary tube and sew them with string at regular intervals to form a capillary band, and the other is to use the capillary band (A) only as a cryogenic agent. In some cases, the tubes are separated into thin tube bands in which the cool storage heat medium is sealed, and the tubes are stacked and rolled up.

In addition, metal carbide and metal powder are used, and alkaline components, neutral salts, and sulfides absorb water or moisture in the air and generate reaction heat, and naphthalene media, which change from liquid to solid. This method also includes a method of increasing thermal efficiency by using a substance that generates heat or radiates heat.

These are inserted into the upper part of the insertion container of the cold storage heat body,
Provides a warming effect.

Further, an example of the combination of cold storage using a cold storage agent and cold storage using a heat storage agent is as follows.

Example (1) For cryogenic agents: 75 g of ammonia nitrate, 15 g of ammonium chloride, 10 g of urea or ammonium sulfate, 200 g of mirabilite 10-20 hydrate, and seal this in a thin tube (1) (1') with a diameter of 5 mm and a length of 30 mm, and the space is It is made convenient for forming an sample of vibration for expansion due to freezing and sound insulation, and cooled with dry ice at -60℃ or liquid carbon dioxide to -5 to -10 in about 5 minutes.
The group of tubes cooled to
It took 3-4 hours to rise to a temperature of 8°C.

Example (2) For exothermic agents: Mabnesium powder 20g Metallic iron powder 10g Iron carbide powder 10g Iron sulfate 20g Carbon 10g Common salt or alum 40g Water or hydrated salt 20g Cellulose, sawdust 4.6g Starch 3g Add this to the metal Separate it from the powder, put it in a flexible tube and isolate it.
Separately, other components are added, the separated product is sealed, and when used, the components are mixed to cause an exothermic reaction.

This cryogenic agent is used as a hydrous salt and is used as a water substitute for the oxidizing effect of metal powder, but since the intake of moisture and enzyme gas from the air helps sustain the reaction, the capillary has a porous air infiltration surface. It is necessary to make

When the metal powder oxidizes and decomposes, the temperature rises to 100-120℃, and heat retention lasts for 6 hours, but for repeated use, the time required to seal the highly thermally conductive metal powder and heat the heat storage body Used for shortening.

In addition, by distinguishing between the cold storage tropical zone (A) of the thin tubes (1) and (1') in which a cryogenic agent is always sealed and the cryogenic agent, the sealed cold storage tropical zone (A) is shown in Figure 5 based on the formulation of example (1). Figure 7 shows the cold storage characteristics of thin tubes (1) and (1') sealed in a cardboard-like structure and stacked for use on the inner wall of a large freezer compartment. Thin tubes (1) (1') are inserted into the inner surface of the corrugated board, and plates sealed with a cold storage heat medium are stacked on the outer surface to increase the compressive strength.The thickness of this corrugated board is approximately 5 mm. This produces a level difference of 10 decibels at a frequency of 1,000 Hz, and the noise level difference rises to 28 decibels with double stacked pipes, which is useful for eliminating noise from refrigerators and retaining cold. In FIG. 8, a double-layered glass plate (a) and a group of thin tubes is shown as (b), and a triple-layered one is shown as (c), and is used at a lower cost than lead.

As described above, the feature of the present invention is that the increase in heat convection caused by the known method of sealing the cooling medium in a large bag or container is isolated by a narrow container made of a group of capillary tubes. While preventing loss and extending the cold storage heat time, the narrow capacity due to the thin tube structure during cooling and heating,
By exhibiting the effect of accelerating the cold storage heat, the cold storage heat effect of frozen foods, medicines, semen, beverages, etc. is demonstrated, and the thin tube structure increases the contact area and improves efficiency, especially when freezing with liquid gas or dry ice. Because it cools well, it is not only used for processing containers such as ice cream and refrigerant containers, but also as a heat source for heating purposes when using refrigerant as a heat storage medium and metal carbide etc. When used as a building material, it is useful for air conditioning, as a sealing refrigerant, as a heat storage agent, and as a noise insulation material, making it an industrially useful invention.

[Brief explanation of the drawing]

Claims (1)

[Claims] As mentioned in the following text, plastics, water-resistant paper mixed with hydrocarbon oil and plastics, metals, metal foil laminates,
The lower part of the glass ceramic thin tube is sealed, a certain space is created above, and a group of flexible processed thin tubes, which are sealed by inserting a cooling medium and a cryogen liquid into the inside, are connected using strings, pressure adhesive tape, film paper, etc. It is characterized by stacking a cold storage heat body consisting of a tube, cooling or heating it in advance, then wrapping and insulating the outside with a heat insulating material, and inserting it into a container to cool the object to be cooled.
Cold packaging containers and wall materials