MULTIPOINT APPARATUS FOR TAKING SAMPLES Russian patent published in 1994 - IPC

Abstract RU 2018109 C1

FIELD: taking samples of material in gaseous state. SUBSTANCE: multipoint apparatus for taking gaseous samples has a thermostatting line filled with a heat-transfer agent and including heaters, coolers and heat-exchangers. The apparatus is provided with a delivery line with individual flow booster and flow distributors. The apparatus furthermore has depressurizing line for coupling object to be sample with environment. The depressurizing line has units of small and large calibrated leaks, flow distributors and pressure sensor. The flow distributors of sample-taking, delivery and depressurizing lines are combined to form a switching unit. The sample-taking, thermostatting lines, by-pass line and depressurizing one are combined to form a functional unit. The sample-taking is provided with temperature, humidity and pressure drop sensor and is in thermal contact with the thermostatting line. The apparatus is provided with gas sources with which objects to be sampled are coupled through the switching unit with the aid of the delivery line. The latter couples the sample-taking line through the switching unit to the objects to be sampled. The pressure regulating unit and the pressure drop sensor are electrically connected to each other. The apparatus is characterized in that a two-stage vacuum pump is used as a flow booster, pressure regulating unit of the sample-taking line is used as a small calibrated leaks. EFFECT: enhanced reliability. 3 cl, 3 dwg

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RU 2 018 109 C1

Authors

Alov G.S.

Zezjukin N.P.

Motalin G.A.

Ursegov Ja.P.

Dates

1994-08-15Published

1992-05-26Filed