Chemical injection system

Details Chemical injection system Chemical injection system

1993-06-25

1995-04-18

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

48195, 137561R, G05D 1113

Patent

active

054069700

ABSTRACT:
A system for injecting chemicals, e.g., odorants, from a chemical supply into a gas pipeline includes three primary components, a pump for injecting the odorant, a metering device, and a programmable controller. The controller is preferably powered by a solar panel to facilitate use of the system in remote areas for long periods of time. A removable data carrier, such as a memory module, is connected to the controller to collect odorant system event data. The data carrier is removable from the controller and the data therein may be downloaded into an auxiliary audit computer for generation of summary audit reports. The system precisely monitors how much odorant is used per pump stroke and insures that the odorant injection rate remains constant irrespective of environmental or equipment variations which might otherwise cause inaccuracies in the measurement of odorant usage data and/or the fluctuation of the odorant injection rate.

REFERENCES:
patent: 4180083 (1979-12-01), Miyaoka
patent: 4436674 (1984-03-01), McMenamin
patent: 4611294 (1986-09-01), Stanfill
patent: 5032063 (1991-07-01), Zeck et al.
Y-Z Industries, Inc., "NJEX-7000 Odorant Injection System Manual", pp. 1-36, May 18, 1992.

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