Liquid sampling system
Patent
·
OSTI ID:866285
- Idaho Falls, ID
A conduit extends from a reservoir through a sampling station and back to the reservoir in a closed loop. A jet ejector in the conduit establishes suction for withdrawing liquid from the reservoir. The conduit has a self-healing septum therein upstream of the jet ejector for receiving one end of a double-ended cannula, the other end of which is received in a serum bottle for sample collection. Gas is introduced into the conduit at a gas bleed between the sample collection bottle and the reservoir. The jet ejector evacuates gas from the conduit and the bottle and aspirates a column of liquid from the reservoir at a high rate. When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir. In the case of hazardous and toxic liquids, the sample bottle and the jet ejector may be isolated from the reservoir and may be further isolated from a control station containing remote manipulation means for the sample bottle and control valves for the jet ejector and gas bleed.
- Research Organization:
- EXXON NUCLEAR IDAHO CO
- DOE Contract Number:
- AC07-79ID01675
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4674343
- OSTI ID:
- 866285
- Country of Publication:
- United States
- Language:
- English
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substantially
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withdrawing liquid
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aspirates
bleed
bottle
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closed
closed loop
collection
column
conduit
conduit extends
containing
control
control station
control valve
control valves
double-ended
driving
ejector
establishes
evacuates
extends
flow
flow therethrough
forming
gas
hazardous
increases
interrupting
introduced
isolated
jet
jet ejector
liquid
liquids
loop
manipulation
means
pressure
rate
reaches
received
receiving
reduces
remote
remote manipulation
reservoir
sample
sample collection
sampling
sampling station
self-healing
septum
serum
serum bottle
station
substantially
suction
therein
therethrough
toxic
upstream
valves
withdrawal
withdrawing
withdrawing liquid
withdrawn