Cold accumulation state determination method and determination instrument

Abstract

The invention discloses a cold accumulation state determination method, which comprises the steps of: selecting a temperature interval in which flat sections locate and setting the temperature interval to be a freezing state according to freezing process temperature curves of cold accumulation materials; and distinguishing other temperature intervals relative to the freezing temperature, setting the temperature interval (in which a large slope section locates) to be a normal temperature state if the temperature interval is higher than the freezing temperature interval, and setting the temperature interval (in which a large slope section locates) to be a supercooled state if the temperature interval is lower than the freezing temperature interval. According to the cold accumulation state determination method and the cold accumulation state determination instrument, different frozen states can be determined corresponding to temperature intervals of curved sections in different freezing temperature curves of the cold accumulation materials, the inconvenience of determining frozen states by adopting the traditional method of utilizing temperature data and then according to professional conversion results is eliminated, ordinary operating staff without a professional background can know the frozen states directly, the limitation of inconvenient cold accumulation state determination is solved, and the cold accumulation state determination method and the cold accumulation state determination instrument have the advantages of universality, accurate determination and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of cold (heat) storage, in particular to an electronic instrument for detecting whether a cold (heat) storage material has stored cold or absorbed heat. Background technique [0002] Whether it is a high-temperature or low-temperature cold storage material, there will be a cold storage (hot) temperature point or temperature section. Absorb or release a lot of heat at this temperature. Use this heat absorption or release to achieve the purpose of heat preservation or refrigeration. But how to judge whether the absorption or release of heat is sufficient becomes a difficulty. Difficult to standardize. For example, the use of phase change cold storage materials, the use of ice packs and ice boxes to determine whether there is a difference in human factors by factors such as hand feel and test sound, whether it is solidified or not. Especially for some special cold storage materials, such as solid ice (exist...

AI Technical Summary

Problems solved by technology

But how to judge whether the absorption or release of heat is sufficient becomes a difficulty

difficult to standardize

For example, using phase change cold storage materials, using ice packs and ice boxes to determine whether there are differences in personnel factors, using factors such as hand feel and test sound, and whether they are solidified

Especially for some special cold storage materials, such as solid ice (only exists in solid form), the whole cold storage (heat absorption) is in one state, and it is impossible to judge by hand and eye

Then there are ultra-low temperature cold storage materials, or ultra-high temperature cold storage materials, which are not easy to touch with hands

cannot accurately determine

[0003] For the ice box used in the transportation of medicines, if the cold storage material is not completely frozen, it will affect the refrigeration time. If the freezing is too cold, it will cause the medicines to be too cold, causing the medicines to fail and cause losses.

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