Biological sample liquid nitrogen tank refrigerator

Abstract

The invention discloses a biological sample liquid nitrogen tank refrigerator which comprises a liquid nitrogen tank refrigerator body and two compressor refrigerating systems. The liquid nitrogen tank refrigerator body comprises an inner tank body, an outer tank body and a vacuum interlayer located between the inner tank body and the outer tank body; the liquid nitrogen tank refrigerator body further comprises a liquid nitrogen filling pipe for filling liquid nitrogen into the inner tank body; and each compressor refrigerating system comprises a condenser, a compressor, a condensation evaporator, a throttling device and an evaporative cooling coil, wherein the two evaporative cooling coils are wound on the inner wall of the inner tank body in a staggered mode. According to the biological sample liquid nitrogen tank refrigerator, liquid nitrogen refrigeration and mechanical compression refrigeration are combined, a vacuum heat insulation layer is used for heat insulation, and therefore the biological sample liquid nitrogen tank refrigerator has the advantages of being good in energy-saving effect and capable of ensuring safety of stored biological samples, the use mode is flexible, and application prospects are wide.

Description

technical field [0001] The invention relates to the technical field of biological sample storage, in particular to a biological sample liquid nitrogen tank refrigerator. Background technique [0002] Biobanks, also known as biobanks, are mainly used to preserve various human biological samples for various research purposes, including tissues, whole blood, plasma, serum, DNA, RNA, biological fluids, or preliminarily processed biological samples. As well as various clinical data, pathology, treatment and follow-up information related to these biological samples, it is a resource library that is professionally collected, transported, stored, managed and used in accordance with strict technical standards. Biobank plays an irreplaceable role in the research of human disease prediction, diagnosis, and treatment, and is an important guarantee for the realization of translational medicine and precision medicine. With the continuous improvement of my country's national comprehensive...

AI Technical Summary

Problems solved by technology

Ultra-low temperature refrigerators are refrigerated by means of consuming electric energy. In a low-temperature environment, the energy efficiency ratio of the refrigeration system is very low and the power consumption is large.

In addition, in view of the possibility of commercial power interruption, it is necessary to have a backup power supply

Compressor mechanical refrigeration has two fatal flaws in the preservation of biological samples. First, power failure or mechanical failure. Once the refrigeration device fails, the temperature in the refrigerator will rise, and the samples such as cell tissues and viruses stored in it will be destroyed. , Biological samples lose their research value, resulting in immeasurable losses; second, the safe use temperature of ultra-low temperature refrigerators is -86°C, but for many biological samples, such as stem cells, somatic cells, embryos, oocytes, etc. must be stored at -196°C ℃ in liquid nitrogen, but liquid nitrogen storage requires frequent replacement of liquid nitrogen supply tanks, resulting in increased operation and maintenance costs and increased inconvenience

Images