Source-free automatic temperature control type refrigerating and heat insulation method

Abstract

The invention provides a source-free automatic temperature control type refrigerating and heat insulation method, and belongs to the technical field of refrigerating and heat insulation. The method is characterized in that the heat transferred from the outside to a heat insulation box through heat insulation box walls and heat bridge inner box walls and the cold transferred into a heat bridge box through a heat bridge inner box are calculated according to the requirement of objects on refrigerating temperature, wherein the heat is shown as a formula that phi heat=K1delta T1S1, and the cold is shown as the formula that phi cold=K2delta T2S2; the heat is transferred through a heat bridge conductor according to the temperature of the heat bridge inner box until the consistence is reached, namely, the heat balance that the phi heat is equal to the phi cold of the heat bridge inner box is reached; then the thickness of a heat insulation layer of the heat insulation box, the area of a hot surface of the heat bridge inner box, and the thickness of the heat insulation layer of the heat bridge inner box are adjusted to control the temperature of the heat bridge inner box. According to the method, the refrigerating and heat insulation effects are good; the structure is simple; the cost is low; the water which is low in cost and free of pollution can be used as a phase-change cold source; outside heat can be introduced, and a heat bridge is utilized, so as to enable the balance of the cold and heat of each part, and as a result, the temperature control purpose can be achieved. The method is convenient to popularize and use.

Description

technical field [0001] The invention relates to a heat preservation method, in particular to a cold storage and heat preservation method with passive self-control temperature, which belongs to the technical field of cold storage and heat preservation. Background technique [0002] With the continuous improvement of the quality of life, people have higher and higher requirements for material life, especially in terms of food, people pursue the freshness and quality of food, especially seafood, so special cold chain insulation is required for seafood transportation box; the transportation of vaccines has higher and higher requirements for temperature control, too cold or too hot will affect the quality of vaccines, thus affecting the use of vaccines. However, the temperature control effect of the cold chain incubator in the existing technology is not very ideal. Water is mostly used as the phase change material ice row, and the phase change temperature of the water ice row is ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of the quality of life, people have higher and higher requirements for material life, especially in terms of food, people pursue the freshness and quality of food, especially seafood, so special cold chain insulation is required for seafood transportation box; the transportation of vaccines has higher and higher requirements for temperature control, too cold or too hot will affect the quality of vaccines, thus affecting the use of vaccines

However, the temperature control effect of the cold chain incubator in the existing technology is not very ideal. Water is mostly used as the phase change material ice row, and the phase change temperature of the water ice row is 0°C. Cold-absorbing materials, excessive use of state changes of organic substances to absorb cold energy to achieve the effect of temperature control, organic substances pollute the environment, the state is difficult to grasp, the cost is high, and the operation is complicated, so it is easy to cause overcooling and overheating, which seriously affects the cold chain. The development of the industry has affected the quality of people's lives, which makes the development of the cold chain industry look forward to the development of new technologies and requires the support of new insulation technologies

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