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低温在生物上和医学上已得到广泛的应用,为使血、组织和骨髓这样的生命物质能在低温下保存,必须使用低温恒温箱。液氮低温恒温箱是以液氮为冷却剂,由汽化量的大小来控制降温速率的低温装置。本装置除作为淋巴组织、骨髓、皮肤、胎胚组织,微生物、精液、血液等的贮存和研究,还可用作微生物的培养,高分子制品及各种仪器的试验、钢材和低温冷处理,通讯设备的低温试验等。在一定的工作条件下,如何估算降温时所需的液氮量以及所需液氮量与绝热型式及降温
Low temperature biologically and medically has been widely used, in order to make life material such as blood, tissue and bone marrow can be stored at low temperatures, you must use cryogenic incubator. Liquid nitrogen cryostat is liquid nitrogen as a coolant, the amount of vaporization to control the rate of temperature cooling device. In addition to the device as lymphoid tissue, bone marrow, skin, embryo tissue, microorganisms, semen, blood and other storage and research, but also for the cultivation of microorganisms, polymer products and various instruments of the test, cold and cold steel, communications Equipment, such as low temperature test. Under certain working conditions, how to estimate the amount of liquid nitrogen required for cooling and the required amount of liquid nitrogen and insulation type and cooling