CN2160859Y

CN2160859Y - Chemical ice-bag

Info

Publication number: CN2160859Y
Application number: CN 92216591
Authority: CN
Inventors: 蔡林田
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-27
Filing date: 1992-07-27
Publication date: 1994-04-06
Anticipated expiration: 2002-07-27

Abstract

The utility model relates to a chemical ice bag belonging to low temperature refrigeration articles, particularly to a technology that chemical materials are separately packed in bag bodies to produce cryogenic effect. The utility model is composed of a bag body (1), spacing sleeves (2), spacing bars (3) and refrigerant materials (4), wherein the spacing sleeves (2) are clamped on the outer layer of the bag body (1), the spacing bars (3) are pressed on the inner layer of the bag body (1) and are clamped in the spacing sleeves (2), and the bag body (1) is divided into two parts in which the refrigerant materials are packed respectively. When a user needs cold compress or cooling or refrigeration, the user can draw out a spacing clip clamped on the bag body and mix the refrigerant materials to use. The utility model has the advantages of convenient use, and convenient carryover and storage.

Description

Chemical ice-bag

A kind of chemical cold bag belongs to the cryogenic refrigeration articles for use, particularly a kind of in bag the packing industrial chemicals produce the technology of cryogenic effect.

The method of cooling has direct cooling method and indirect cooling method usually, and directly cooling method will ice and be added the material that is cooled, or by the surrounding medium radiating and cooling, makes the temperature reduction of hot object and undergoing phase transition not, and simple Gang is effective.Use natural ice to do the refrigeration thing at normal temperatures, especially be difficult for long term storage and carry under hot conditions, to patients such as the high heat of unexpected generation, cerebral hemorrhages, the high-temperature operation environment is difficult for whipping and must makes cryogenic conditions.

The purpose of this utility model is to overcome above technical deficiency, and provides a kind of simple and convenient, the chemical cold bag of producing easily of being made by 2 kinds of chemical industry refrigeration raw materials.

The utility model is achieved in that the principle of chemical cold bag according to the thermo-chemical reaction equation QP=△ H of the conservation of energy, utilizes two kinds of refrigeration raw material sodium salt Na ₂CO ₃.10H ₂O and ammonium salt NH ₄NO ₃Dehydration heat and reaction heat reach the absorbing and cooling temperature purpose of freezing, raw material sodium salt NH will freeze ₄CO ₃.10H ₂O packs in the bag, adds an amount of solvent distilled water then, and card is good to be separated into two parts to bag every folder, reinstalls refrigeration raw material ammonium salt NH ₄NO ₃Seal with heat-sealing machine.

The hot △ H of dehydration ₁=Na ₂CO ₃.10H ₂O → Na ₂CO ₃+ 10H ₂O

=+22.1 kilocalories (caloric receptivity)

Reaction heat △ H ₂=Na ₂CO ₃+ NH ₄NO ₃→ 2Na ₂CO ₃+ (HN ₄) ₂CO ₃

=+18.53 kilocalories (caloric receptivity)

Hot △ H absorbs water ₁+ reaction heat △ H ₂=40.63 kilocalories (caloric receptivity)

When the user needs cold compress, cooling, refrigeration, take out and be stuck in can use behind the mixing on the bag every folder, in 3 hours, can be from 0 ℃ to-6 ℃ ,-6 ℃ to 6 ℃, and nontoxic, have no side effect, it is simple and convenient to freeze.

Specify with by way of example below in conjunction with accompanying drawing.

Fig. 1 shows the chemical cold bag structure chart.

Fig. 2 shows chemical cold bag A-A profile.

Fig. 3 shows that chemical cold bag B is to view.

Among Fig. 1, the 1-bag; The 2-spacer; 3-is every rod; The 4-raw material that freezes

Chemical cold bag by bag (1), spacer (2), form every rod (3), refrigeration raw material (4), with sodium salt Na ₂CO ₃.10H ₂O 280 restrains in the polyethylene plastic bag of packing into, adds 5-7ml distilled water then, and spacer (2) is stuck in the skin of bag (1), is stuck in the internal layer and spacer (2) of bag (1), again with ammonium salt NH every rod (3) ₄NO ₃The 180 gram opposite sides of packing into, heat-sealing machine seals, temperature is 160-180 ℃, during use, only need take out be stuck on the bag every rod (3), get final product cold compress, cooling, cooling behind the mixing.

Chemical cold bag is result of use (temperature in the bag) in the time of 20 ℃

Time (MIN) temperature (℃)

0 20

3 0

15 －6

80 0

125 4

195 6

Chemical cold bag can be from 0 ℃ to-6 ℃ ,-6 ℃ to 6 ℃ in 3 hours, satisfy cold compress, cooling demand fully.During patient's cold compress, get comfortable posture, expose the cold compress position, chemical cold bag that mixing is good is placed the affected part, and each the about 20-30 of cold compress minute, also continuously 1-3 hour, cold compress finished, and use hairiness towel is dried the cold compress position.The cold compress medical effect can partly replace the medicine therapeutic action, reduce to use medicine, and nontoxic, have no side effect, no pain, easy to use, the first aid of especially suitable high heat, patients with cerebral hemorrhage.

A kind of chemical cold bag, simple in structure, easy to use, be easy to carry and preserve, be applicable to the cold compress cooling of illnesss such as high heat, hyperpyretic convulsion, cerebral hemorrhage, heatstroke, extraordinary transportation heat absorption insulation, what people such as flammable and combustible liquids packing produced and lived cools.

Claims

1, a kind of chemical cold bag is characterized in that by bag (1), spacer (2), forms every rod (3), refrigeration thing (4), and spacer (2) is stuck in the skin of bag (1), be pressed in the internal layer of bag (1) every rod (3), be stuck in the spacer (2), bag (1) is separated into two parts, packing refrigeration thing.