Control and Debugging of Warm Compressed Pump Unit in 1.8 K Superfluid Helium System
The rapid development of large-scale scientific devices in the fields of nuclear fusion and high-energy physics has promoted the progress and widespread application of 1.8 K/2 K superfluid helium systems.The room temperature decom-pression method is a common method to obtain superfluid helium.The process flow,structure,design parameters,automatic control process,remote monitoring design,start-up and shutdown process and performance test and verification of the warm compressed pump unit in the 1.8 K superfluid helium system were introduced.Through the gradual pressure reduction con-trol of the warm compressed pump unit,1.8 K superfluid helium was obtained quickly and stably,and all measured parame-ters of the pump unit reached or exceeded the design parameters.
superfluid helium systemwarm compressed pumpautomatic control processpressure reduction control
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