Programmnye i apparatnye sredstva sistemy upravleniya slivom zhidkogo geliya

To provide the experimental physical plants with liquid helium the GNTs IFVE developed, created and put into exploitation the system of the liquid helium overflow (LHO) into transport Dewar vessels at 100 and 200 l capacity based on the KVU 500 cryogenic vacuum plant. When solving the problem the authors took into account the necessity to provide other experimental physical plants with liquid helium that operated at the same time with a superconductive separator that was a principal consumer of the KVU. Also the reason was that it was necessary to use an automation due to a shortage of the maintenance staff. The system developed allows accumulating the liquid helium surplus during excess production of KVU and transmitting it automatically to the buffer accumulation vessel. The Dewar vessels are fulfilled from this vessel without stopping the operation when the necessary refrigerant level is reached. The system of the liquid helium overflow is described in the paper as well as its timing and hardware units. Keywords: cryogenics, automation, low temperatures, refrigerating systems, refrigerants, Dewar vessels, automated systems.

криогеника, автоматизация, низкие температуры, холодильные системы, хладагенты, сосуды Дьюара, автоматизированные системы