DEVICE TO SAMPLE GAS MEDIUM FOR SORBENT AND METHOD TO PREPARE IT FOR OPERATION IN COMPARTMENT OF MANNED SPACECRAFT Russian patent published in 2011 - IPC G01N1/22 G01N33/497 

FIELD: space engineering.

SUBSTANCE: device to sample a gas medium for a sorbent in a compartment of a manned spacecraft includes a bellows aspirator with a working volume of around 100 cm³ and a sampler with an absorber, arranged in the form of a sorbent-filled tube body made of stainless steel with the length of around 150 mm and inner diametre of not more than 6 mm, at the ends of which the thread is cut, onto which captive nuts are screwed - as plugs of duraluminium with a Teflon seal, joined with the absorber body by a flexible synthetic thread, and the tube ends are closed with a glass wool with Teflon limiters. Also there is a method provided to sample a gas medium for a sorbent in a compartment of a manned spacecraft by pumping of an examined air in the manned spacecraft through a previously prepared device. Besides, preparation includes thorough degreasing and washing of the inner surface of the tube with subsequent drying in the nitrogen atmosphere at 300°C prior to the sorbent charging into the absorber; removal of substances absorbed by a used sorbent by means of nitrogen blowdown via the sorbent and the sampler sealing.

EFFECT: accuracy and reliability of gas sampling for sorbents when used in conditions of a manned space flight.

4 cl, 1 dwg