Refrigeration heat exchange pipeline assembly with defrosting function and refrigerant conveying pipe

Abstract

The invention discloses a refrigeration heat exchange pipeline assembly with the defrosting function. The assembly is used for the technical field of refrigeration heat exchange and comprises a pipeline with an inlet and an outlet, multiple continuous heat exchange fins are integrally arranged on the outer circumference of the pipeline, and the assembly further comprises an electric heating pipe fixed to the pipeline. The invention further discloses a refrigerant conveying pipe manufactured through a refrigeration pipeline heat exchange structure. Through the structure, efficient defrosting isachieved, the defrosting period can be greatly prolonged, and the refrigeration effect is improved. The electric heating pipe can remove frost on the fins and the outer wall of the pipeline, the defrosting frequency when an evaporator is used under the low-temperature environment is reduced, normal and efficient running of the evaporator can be ensured, the effective use rate of the refrigerationmedia is higher, the running efficiency of the evaporator is improved, and the assembly is more energy-saving and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of refrigeration and defrosting, and in particular relates to a refrigeration heat exchange pipeline assembly and a refrigerant delivery pipe with defrosting. Background technique [0002] With the development of refrigeration technology, frost-free refrigerators are becoming more and more popular. At present, the frost-free refrigerators on the market are generally air-cooled refrigerators. The principle of air-cooled refrigerators is to use air for cooling, and high-temperature air flows through the built-in When the evaporator (separated from the inner wall of the refrigerator), due to the high temperature of the air and the low temperature of the evaporator, the two directly exchange heat, the temperature of the air will decrease, and at the same time, the cold air will be blown into the refrigerator; the air-cooled refrigerator is through this The cold air is continuously circulated in the refrigerator ...

AI Technical Summary

Problems solved by technology

These two defrosting methods have their own advantages and disadvantages. The aluminum tube heating wire can be in contact with the end of the fin, but it is far away from the pipeline. The heat at the junction of the fin and the pipeline is relatively low, and the defrosting cycle is longer; the second One is directly heated by radiation, and the heat loss is relatively large

Neither of these two methods can make full use of the heat energy of the defrosting heating wire to quickly defrost

[0005] In addition, in the process of transporting medium in refrigerant pipelines, such as the process of transporting liquid nitrogen, the temperature around the pipeline decreases due to the heat absorption of liquid nitrogen vaporization, resulting in a large amount of frost on the surface of the pipeline, especially when the ambient temperature is low, freezing The phenomenon is more serious and affects the vaporization effect

At this time, the pipeline needs to be defrosted. The most ideal defrosting method is to directly heat the pipeline and fins. The existing method generally uses a hot air fan to defrost locally. Defects such as poor frost effect

Images