METHOD FOR RADIOACTIVE SOLUTION SAMPLE DELIVERY AND DEVICE FOR IMPLEMENTING IT (VERSIONS) Russian patent published in 2015 - IPC G01N1/10 

FIELD: chemistry.

SUBSTANCE: invention refers to radiochemistry and may be used in delivering diluted portions (samples) of the above solutions from a sampling and diluting site to remote composition analysers. The method involves introducing the solution sample into an extended carrier tube, generating a positive pressure difference of a gas phase in the carrier tube in front of and behind the sample location in the direction of movement, and receiving the sample into a sample receiving container connected to an input of the composition analyzer. The positive pressure difference is adjusted so that a sample speed in the carrier tube remains unchanged and is less than a preset value, and a capillary line is used as a carrier tube. A device for implementing the claimed method comprises a sampling system mounted on a process pipeline, a controlled T-valve connected through the carrier tube to the sample receiving container connected in turn to the input of the analyzer. The device also comprises a controller, control outputs of which are connected to control inputs of a sampler unit, a T-valve and an analyzer. The device additionally comprises a gas phase consumption gauge with a blow-off tube, a pneumatic throttle valve, a pressure difference regulator or a vacuum controller. When using the pressure difference regulator, its output is connected through the pneumatic throttle valve and T-valve to an input of the carrier tube, whereas the gas phase consumption gauge is connected through the sample receiving container to an output of the carrier tube. When using the vacuum controller, its output is connected through the pneumatic throttle valve and sample receiving container to an output of the carrier tube, whereas the gas phase consumption gauge is connected through the T-valve to an input of the carrier tube.

EFFECT: more effective delivery of radioactive solution samples from production facilities at the sampling site into an analytical laboratory, as well as providing the high radiation personnel safety.

16 cl, 2 dwg