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Biomedical Low Temperature Refrigerator
Working principle of refrigeration cycle in biomedical refrigerators:
Product details
working principle:
Working principle of refrigeration cycle in biomedical refrigerators:
1. The process of refrigerant compression: The steam that completes the refrigeration function is compressed and turned into superheated steam with high heat. When a gas reaches a certain pressure at a critical temperature, it will liquefy. When the temperature reaches above the boiling point of a gas at a certain pressure, gasification occurs, which absorbs heat from the environment and achieves refrigeration.
2. Refrigerant: A gas substance used for refrigeration, traditionally mostly Freon. Due to its pollution to the atmosphere, it is now mostly replaced by non polluting refrigerants.
3. Condensation process: Overheated steam exchanges heat with condensed water or air in the condenser, becoming saturated steam and then becoming saturated liquid. When the condensate is cooled, the saturated liquid temperature continues to decrease, resulting in supercooling.
4. Cut off process: The liquid from the condenser is throttled by the expansion valve and becomes low-temperature and low-pressure wet steam.
5. Evaporation process: Low pressure wet steam absorbs heat and cools in the evaporator, and the gas coming out of the evaporator becomes dry saturated steam or slightly overheated steam.
Application scope:
1. Biomedical refrigerator is a professional refrigerator mainly used to store and preserve drugs, vaccines, enzymes, hormones, stem cells, platelets, semen, transplanted skin, animal tissue samples, extracted RNA, gene banks, and some important biological and chemical reagents and other special drugs.
2. Used for storing blood bags, drugs, reagents, etc., it can be combined with other instruments for low-temperature maintenance in experiments such as protein extraction and shake culture.
3. As a regular refrigerator in the laboratory, it stores enzymes, blood products, nucleic acids, etc.
4. Biomedical refrigerators are mainly used to store drugs, vaccines, enzymes, hormones, stem cells, semen, transplanted skin, as well as specimens extracted from the human body, gene cloning libraries, and some important biological and chemical reagents.
5. The reliability of biomedical refrigerators and their ability to meet storage conditions for different samples. Nanomaterials will become a promising material for future low-temperature refrigerators. The monitoring system will also become an important part.
6. Components of a biomedical refrigerator.
Biomedical refrigerators are widely used in scientific research institutions, healthcare, biopharmaceuticals, pharmacies, and many other industries and fields, and are one of the essential medical equipment. Medical refrigerators have strict temperature control devices, and their performance and use are significantly different from household refrigerators.
Equipment composition:
1. Compressor: compresses low-temperature steam into high-temperature and high-pressure gas.
2. Condenser: A heat dissipation component that cools high-temperature and high-pressure gases into high-temperature and high-pressure liquids through heat exchange.
3. Dry filter: adsorbs refrigerant and moisture, impurities, etc. in the system pipeline to keep the system dry and clean.
4. Capillary tube: By resistance throttling, high temperature and high pressure liquids are transformed into low temperature and low pressure liquids.
5. Evaporator: Evaporates low-temperature and low-pressure liquid from capillaries into low-temperature and low-pressure gas through heat exchange with the outside.
6. Liquid reservoir: separates the liquid in the refrigerant gas entering the compressor to prevent "liquid hammer" from occurring
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