Liquid sampling system
- 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 When the withdrawn liquid reaches the jet ejector the rate of flow therethrough reduces substantially and the gas bleed increases the pressure in the conduit for driving liquid into the sample bottle, the gas bleed forming a column of gas behind the withdrawn liquid column and interrupting the withdrawal of liquid from the reservoir.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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sampling
conduit
extends
reservoir
station
closed
loop
jet
ejector
establishes
suction
withdrawing
self-healing
septum
therein
upstream
receiving
double-ended
cannula
received
serum
bottle
sample
collection
gas
introduced
bleed
evacuates
aspirates
column
rate
withdrawn
reaches
flow
therethrough
reduces
substantially
increases
pressure
driving
forming
interrupting
withdrawal
hazardous
toxic
liquids
isolated
control
containing
remote
manipulation
means
valves
jet ejector
control valves
conduit extends
sample collection
closed loop
control valve
flow therethrough
remote manipulation
control station
sampling station
serum bottle
withdrawing liquid
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