FIELD: physics; measurement.
SUBSTANCE: present invention relates to a system of taking samples from the atmosphere of a reactor containment of a nuclear process installation and a method of obtaining such a sample. The system of taking samples contains a pipe for taking samples, which enters the reactor containment and is connected to a low pressure system and an analysis system. There is a throttling device in front of the pipe for taking samples on the side of the gas, where it connects to the atmosphere in the reactor containment. The pipe for taking samples is a small pipe with nominal inner diametre of up to 15 mm, and is preferably in form of a capillary pipe with nominal inner diametre between 1 mm and 5 mm. When implementing the method of taking samples, low pressure is created in the pipe for taking samples, compared to pressure in the reactor containment. After the sample enters the pipe for taking samples, pressure in the pipe is limited.
EFFECT: possibility of taking a sample, suitable for taking exceptionally reliable and accurate measurement values.
22 cl, 3 dwg
