System for controlling flow rate in pipelines

Details System for controlling flow rate in pipelines System for controlling flow rate in pipelines

1977-10-18

1979-12-25

Cline, William R.

Fluid handling

Self-proportioning or correlating systems

Self-proportioning flow systems

137255, 137386, 137565, 137571, F04B 4102

Patent

active

041800834

ABSTRACT:
System for controlling flow rate in pipelines connecting a plurality of reservoirs is disclosed. Flow rate Q.sub.ij (t) of fluid flowing from one reservoir (i) to another reservoir (j) is first calculated from the water levels H.sub.i (t), H.sub.j (t) of both reservoirs (i), (j) and then water level H.sub.j (t+1) of the reservoir (j) at the time (t+1) is calculated from its inflow and outflow taking into account the predicted amount of demand Q.sub.je (t).
If the water level h.sub.j (t+1) is below or over the predetermined lower or upper limitation, manipulated variables for valves and pumps installed in pipelines are regulated to control inflow of the reservoir (j) so that the required fluid-feed is satisfied while maintaining the scheduled water level of the reservoir (j).

REFERENCES:
patent: 3503411 (1970-03-01), Bauer et al.
patent: 3786835 (1974-01-01), Finger
patent: 3920550 (1975-11-01), Farrell, Jr. et al.

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