Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1996-04-12
1999-04-06
Hruskoci, Peter A.
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
162 65, 210760, 423581, C02F 178
Patent
active
058913440
ABSTRACT:
A flow control apparatus for enriching gas containing oxygen with ozone includes a generator for producing the enriched mixture. A flow meter is connected to the generator outlet to measure the flow of the generated enriched gas. A mass flow control device is connected downstream of the flow meter. A flow control comparator compares a flow value as obtained from the measuring means and a preset constant value. A signal output of the flow control comparator is connected to a signal input of the mass flow control device for varying the mass flow in accordance with the comparison. An outlet of the mass flow control device is connected to an inlet of a compressor for compressing gas, the inlet gas pressure varying to keep compressed gas at a constant pressure. Feedback is provided between an outlet and an inlet of the compressor. A second mass control device is intermediately connected along the feedback connection for adjusting the mass flow of gas passing through the feedback means. A pressure control comparator compares the inlet pressure of the compressor to a second preset constant value. A signal output of the pressure control device is connected to a signal input of the mass flow control device for varying the mass flow being fedback in accordance with the comparison. The flow controlled compressed gas is delivered to a reactor at a constant pressure.
REFERENCES:
patent: 5366703 (1994-11-01), Liechti et al.
patent: 5567274 (1996-10-01), Funk et al.
Lang Helmut
Liechti Pierre A.
Hruskoci Peter A.
Ozonia International
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