Negative-pressure liquid nitrogen subcooler and method therefore for reducing liquid nitrogen temperature
A negative pressure liquid nitrogen and subcooler technology, which is applied in the direction of subcoolers, refrigerators, refrigeration components, etc., can solve the problems that the heat sink system cannot provide liquid nitrogen and the temperature of the heat sink is lowered, so as to reduce the consumption of liquid helium , reduce the heat sink temperature, reduce the effect of heat radiation
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[0046] The present invention will be further described in detail below with reference to the drawings and embodiments.
[0047] Such as figure 1 As shown, the atmospheric subcooler is mainly composed of a heat exchanger 218 and a subcooler container body 217. The liquid nitrogen flowing through the heat sink is input to the heat exchanger 218, passes through the subcooler container body 217, and is again input into the heat sink. go with. After the atmospheric pressure subcooler, the temperature of the liquid nitrogen flowing out of the heat sink can be reduced to 77K when it flows into the heat sink.
[0048] The negative pressure liquid nitrogen subcooler device of the present invention is equipped with a negative pressure air extraction system 300, which can pump the internal pressure of the subcooler container below normal pressure, and further reduce the temperature of the liquid nitrogen inside the subcooler container to be lower than 77K, thereby further reducing the heat s...
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