Measuring and testing – Sampler – sample handling – etc. – With heating or cooling
Patent
1984-06-06
1987-01-27
Myracle, Jerry W.
Measuring and testing
Sampler, sample handling, etc.
With heating or cooling
7386303, 7386323, 340584, 340606, 340613, 340679, G01N 124
Patent
active
046386742
ABSTRACT:
Sample collecting system for gaseous or vaporous condensable radioactive substances contained in the ambient air, especially for collecting traces of tritium via the T.sub.2 O vapor content in the exhaust air of a nuclear plant. A gas stream of exhaust air is filtered and the filtered gas continues its flow through a suction branch line containing a measuring gas pump which propels the gas stream into and through a precipitate line. The precipitate line, enclosed in a measuring-gas cooler which is a cooling chamber, extends downward and then upward and then out of the cooling chamber, through a measuring-gas choke, through a flow transducer and the gas stream then returned to the exhaust gas flue or ambient air. The pump feeding the precipitate line has its pressure maintained constant by a bypass line and a pressure difference control valve from the output side of the flow transducer to the discharge side of the pump. The cooling temperature of the measurement gas cooler is monitored with an alarm signal if the temperature limit is exceeded. The condensate collecting tank of the T.sub.2 O also acts as part of the mechanism in determining liquid level in the tank.
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Greenberg Laurence A.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Myracle Jerry W.
Noland Tom
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