determine these characteristics is through the use of pump graphs. By using
the pump graphs you will be able to obtain maximum efficiency of the
available pumps.
Pumping unit operation graphs (performance curves) graphically display the
interrelationship between pressure (in feet of head and/or PSI), pump speed,
and throughput.
From these graphs, you can estimate the pumping unit's
operating speeds, the volume of fuel throughput, or the operating head as
long as you know two of the three factors. Pump graphs are an integral part
of pump stations, pipeline, and terminal operations.
Pump stations are combinations of two or more pump units with connecting
manifolds installed where needed along a pipeline to move products through
the line to storage or to dispensing facilities. Pump stations are engineer
facilities constructed of standard line pipe or IPDS-coupled pipeline with
couplings, nipples, valves, fittings, strainers, scraper-receiver assembly,
sandtraps, and the required number of pumps.
Pipeline pump stations are
installed on the main line to keep the product moving at the desired flow
rate.
Petroleum pipeline systems vary in complexity depending on the size of the
theater of operations.
The systems can range from a single product line
with one terminal to a series of multiproduct lines with several terminals.
Pipelines are used as far forward as tactically feasible.
To operate any
pipeline successfully, all personnel must understand their responsibilities
in controlling the operations. Control of the pipeline operations begins at
the operating headquarters with the chief dispatcher and ends with the
terminal operating platoon.
QM5201
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