METHOD AND DEVICE FOR FILLING ONBOARD CYLINDERS OF MISSILE CARRIERS WITH HELIUM Russian patent published in 2012 - IPC F02K9/44 F17C5/04 

FIELD: engines and pumps.

SUBSTANCE: helium filling method of onboard cylinders of missile carriers, which consists in cooling of gaseous helium in cryostat to freezing-out temperature of hazardous impurities, filtration of frozen-out particles, further heating to intermediate pressure with further draining for cleaning of internal surfaces of cylinders and their final filling to the working pressure; at that, there provided is triple filling of onboard cylinders to intermediate pressure and their filling to working pressure is performed from different receivers pre-filled to various initial pressures, and helium draining from onboard cylinders is performed in the section of the third additional receiver by pressure balancing in onboard cylinders and sections of the third receiver, from which, after missile carrier is launched, helium is supplied to compressor for compression and further filling of helium receivers. Device for the filling method's implementation includes helium and nitrogen receivers, cryostats, eclectic heaters, liquid nitrogen tank, compressor, shutoff valves, electric pneumatic valves, reduction gears and throttles. From helium receivers there performed is alternate filling of cylinders to intermediate pressure from the first receiver; then pressure is brought to working parameter from the other helium receiver. At that, in case of failed launching with the third receiver there performed is helium drain from onboard cylinders. Cooling of gaseous helium to the required freezing-out temperature of hazardous impurities is performed in cryostats, and further heating to the required temperature is performed in electric heaters. Regeneration of cryostats at contamination of their filter elements by supplying gaseous nitrogen from nitrogen receiver heated to the required temperature in electric heater.

EFFECT: improving operating technical properties of the device and excluding overhead costs owing to optimising the filling technology and used filling devices at reducing the volume of the used helium amount during filling process and excluding its overhead costs at draining of onboard cylinders.

2 cl, 3 dwg