METHOD AND DEVICE FOR THERMOSTATIC CONTROL OF SPATIAL OBJECTS AND BOOSTER COMPARTMENTS Russian patent published in 2008 - IPC F25B29/00 F25B19/00 

FIELD: transportation.

SUBSTANCE: essence of suggested method consists in the fact that before filling a booster with fuel components, thermal conditioning of spatial object and booster compartments is performed by ambient air compressed, dried, cooled or heated to required values of pressure, temperature and dew point temperature, and that before start to fill the booster with liquid hydrogen, liquid hydrogen is supplied into spatial object and booster compartments instead of air. At that, liquid hydrogen has the same values of pressure, temperature and dew point temperature providing required temperature-humidity conditions and neutral medium which ensures fire and explosion safety for launch facilities in the presence of hydrogen leak. The method is implemented by thermostating device which includes compressor for ambient air compression, filter, air coolers and electric air heater. Air cooling is performed in two flows of refrigerating medium supplied by pumps to air coolers from reservoirs, at that, refrigerating medium of the first flow has temperature 5 to 7°C and of the second flow - temperature -1 to -3°. Air heating is performed in the electric air heater, then the air is supplied to spatial object, manifold and further to booster compartments. Before starting to fill booster with liquid hydrogen, air supply is stopped and gaseous nitrogen supply starts. Gaseous nitrogen is obtained from liquid nitrogen stored in special reservoir by means of its gasification in gasifier and heating to required temperature in electric air heater.

EFFECT: increase of reliability, safety and improvement of operating characteristics in the launch preparation phase and during launch of carrier boosters.

5 cl, 2 dwg