JBF Environmental Technology
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rates to the estimated operation results in a relatively slow recovery rate but
maintain a high oil recovery efficiency and a high throughput efficiency.
(3) If there is ample storage in the form of towed bladders or towed barges, the
operator should tell the Captain to operate the vessel at a high oil recovery
speed (2 to 4 knots). Normally, this is the case where the oil spill is large and
calls for the fastest possible oil recovery rate. The operator matches the belt
speed to the vessel speed and the pumps are operated at a rate as close to
the intercept rate as possible by adjusting the hydraulic flow control valves on
the control stand.
(4) When operating in the 1.1.6.2 mode above the operator may notice oil losses
flowing out the rear of the skimmer. Do not be alarmed by these losses since
they are small relative to the amount of oil that is intercepted and collected
which results in the maximum amount of total oil recovered over time.
2 SYSTEM DESCRIPTION AND CHARACTERISTICS
A GENERAL
DESCRIPTION
The DIP 500 DEPLOYMENT PACKAGE is an in-line advancing skimmer
system designed to recover oil at speeds from 1.5 to 3 knots in seas up to 3
feet. It consists of a hull with attached fender flotation, moving plane assembly
and one cargo pump. It is designed for use alongside vessels of opportunity, in
lakes, rivers, inner harbors and off shore. It can be transported quickly to oil
spill sites and can be used in both stationary and dynamic skimming modes.
The unit is supplied with an on board oil handling pump, transition booms and
connectors that increase the aperture from 4’to 8’. Standard boom can be
attached to the transition booms and rigging to further increase the aperture.
(See Figure 2.)
The complete system consists of one DIP 500 unit that is operated through its
own hydraulic control panel which controls the hydraulic power to the moving
plane assemblies and the DOP 250 pumps.
The module is constructed of two longitudinal bulkheads with an oil pump
compartment and forward compartment. These form the forward tunnel for the
moving plane and aft collection well.
