SPEED CIRCUIT FOR COLLECTING AND RETURNING SAMPLES USING SAME PROBE IN PIPELINE Russian patent published in 2019 - IPC G01N1/20 G01N1/10 G01N1/02 G01N1/24 

FIELD: pipelines.

SUBSTANCE: invention relates to a system and method of creating a velocity circuit. Probe system for extracting samples of divergent and explosive fluid from fluid sample source and return thereof to fluid sample source, characterized by that it comprises: elongated solid body of the sampling probe, made from stainless steel and having a port for extracting fluid samples, an output port of extracted fluid samples, a first channel for transmitting the recovered fluid, extending substantially axially in the direction of the length of the sampling probe housing to a first selected length, sufficient to pass between the fluid sampling port and the output port of the fluid samples, wherein sample probe defines separate return inlet of returned fluid samples, built-in into solid stainless steel housing, return outlet of returned fluid samples, and a second transfer channel for fluid return extending axially to the second selected length, substantially parallel to at least a portion of the first channel of transfer of the extracted fluid and with an offset from the first transmission channel of the recovered fluid, wherein the first axially extending channel establishes fluid communication to the first selected length between the fluid sample source and the fluid sample extraction port, and second axially extending channel defining second selected length extends for selected distance along axis along housing of extraction probe; a sampling line in fluid communication with the output port of the fluid sampling; a sample return line connected to the sampling line and in fluid communication with the return fluid return sample return; and a pump arranged on the sample return line downstream of the sample preparation equipment and upstream of the returned fluid sample return, to increase the fluid sample return pressure to the sample return line to exert pressure on the fluid sample passing through it, providing a return system with a high-speed circuit.

EFFECT: technical result is prevention of emissions.

18 cl, 2 dwg