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Attapulgite gel cold storage agent

A technology of cold storage agent and attapulgite, which is applied in the field of attapulgite gel cold storage agent, can solve the problems of poor plasticity of bagged cold storage agent, difficulty in actual operation, single application field, etc., and achieve the effect of saving electricity expenses and no environmental pollution

Inactive Publication Date: 2006-01-11
许庆华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Cold storage technology is currently widely used, and the types of cold storage agents are constantly being updated. Some of them add polyN-vinylacetamide and sodium borate to sodium chloride aqueous solution to make cold storage agents; there is also a cold storage agent, which is Polyvinyl alcohol and borax, which are fully swollen in water, cross-link to form a body structure, and then absorb a large amount of water to swell into a translucent and easy-flowing gel. In the existing cold storage technology, a large amount of ammonium nitrate, ammonium chloride, and chlorine are used. Sodium chloride, potassium chloride, calcium chloride, urea, sodium carbonate, sodium sulfate, sodium nitrate and other raw materials are used as cold storage agent by adding water. Poor, cold storage time is relatively short, single application field
[0005] The weak point of above-mentioned invention is, adopt " the aqueous solution of ammonium chloride and metal chloride " to prepare cold storage agent, though " basically do not exist the ice-out phenomenon ", its cold storage period and the effect of cold storage are not ideal, and "chlorine The aqueous solution of ammonium chloride and metal chloride will fluctuate in the container used, which brings certain difficulties to the actual operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: be used to prepare the cold storage agent batching of refrigerator, freezer and freezer, comprise following component by weight percentage: attapulgite clay 20%, urea 35%, superabsorbent resin 0.3% and water 44.7%, attapulgite gel The temperature in the cooling agent can be lowered to below -25°C.

Embodiment 2

[0018] Embodiment 2: be used to prepare the fresh-keeping cooling agent batching of melon and fruit, vegetables and food, comprise following component by weight percentage: attapulgite clay 25%, urea 10%, superabsorbent resin 0.2% and water 64.8%, attapulgite The temperature inside the gel cooling agent can be reduced to below -15°C.

Embodiment 3

[0019] Embodiment 3: be used to prepare the cold storage agent batching of low-temperature transportation, comprise following component by weight percentage: Attapulgite clay 15%, urea 40%, superabsorbent resin 0.4% and water 44.6%, in the attapulgite gel cold storage agent The temperature can be lowered to below -35°C.

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Abstract

A cold accumulating agent in the form of gel is prepared from attapulgite clay, urea, high-hydroscopicity resin and water through proportional mixing and stirring. Its advantages are high effect and no environmental pollution.

Description

Technical field: [0001] The invention relates to a cold storage agent, in particular to an attapulgite gel cold storage agent. Background technique: [0002] At present, energy resources are relatively tight, so it is necessary to vigorously promote cold storage technology. Using the low power at night, the cold storage agent is used for cold storage, and the cold storage agent is used for cooling during peak power consumption, which can be widely used in refrigerators, freezers, freezers, air conditioners and low temperature. In transportation and other occasions that require cooling, it has the function of shifting peaks and filling valleys for the power grid, and can reduce or postpone the construction of power plants and other power facilities, so it has good social benefits; at the same time, because the difference in peak and valley electricity prices is used, users can Save money on electricity bills. [0003] Cold storage technology is currently widely used, and the...

Claims

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Application Information

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IPC IPC(8): C09K5/00
Inventor 许庆华
Owner 许庆华
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