EP 2411745 B1 20130710 - SYSTEM FOR CRYOGENIC COOLING FOR CONSUMER COOLING WITH TEMPORALLY VARIABLE LOAD
Title (en)
SYSTEM FOR CRYOGENIC COOLING FOR CONSUMER COOLING WITH TEMPORALLY VARIABLE LOAD
Title (de)
TIEFKÜHLSYSTEM ZUR KÜHLUNG EINES VERBRAUCHERS MIT ZEITLICHER WECHSELENDER LAST
Title (fr)
SYSTEME CRYOGENIQUE POUR LE REFROIDISSEMENT D'UN CONSOMMATEUR PRESENTANT UNE CHARGE THERMIQUE VARIABLE DANS LE TEMPS
Publication
Application
Priority
- FR 2010000236 W 20100322
- FR 0901374 A 20090324
Abstract (en)
[origin: WO2010109091A1] The invention relates to a cryogenic system for cooling a consumer having a time-variable heat load, such as a superconducting magnet, including: a cold box in thermal contact with the consumer, supplied with heat transfer gas compressed by a feed line, and connected to a delivery line for discharging said gas at a lower pressure; and an assembly for adjusting the pressures in the feed and delivery lines, comprising a plurality of controlled valves (CV1, CV2, CV3) and a controller (MC) for controlling the opening of said valves. The invention is characterized in that the controller is a multivariable controller for generating signals (SCS 1, SCS 2, SCS 3) for controlling the opening of said valves according to measured values (PHP, PBP) and set values (P0 HP, P0 BP) for the pressures in the feed and delivery lines on the basis of a mathematical model of the system that factors in a coupling between the pressure values in the feed and delivery lines by means of the above-mentioned cold box.
IPC 8 full level
CPC (source: EP US)
F25B 9/00 (2013.01 - EP US); F25B 49/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010109091 A1 20100930; EP 2411745 A1 20120201; EP 2411745 B1 20130710; FR 2943768 A1 20101001; FR 2943768 B1 20110429; JP 2012521535 A 20120913; US 2012055664 A1 20120308
DOCDB simple family (application)
FR 2010000236 W 20100322; EP 10712464 A 20100322; FR 0901374 A 20090324; JP 2012501338 A 20100322; US 201013258686 A 20100322