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WSA Brush-type Automatic Tube
Cleaning System
The WSA Brush type ATCS has ideal applications on chillers,
auxiliary coolers and heat exchangers and often are found in the following:
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 Comfort Cooling
Facilities
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Cogeneration Plants
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Power Plants
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District Heating and Cooling Plants
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Petrochemical Plants
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Refineries
This type of ATCS can be applied to any shell and tube type
condenser or heat exchanger. However, the Brush type ATCS can be applied to
systems with process fluid as well as water tubeside. The typical system has the
following components:
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One four-way flow diverter.
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One control panel.
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One lot of Brush and Basket sets.
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The flow diverter in the standby normal flow position. Brushes rest
in their "home" baskets.
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The flow diverter in the reverse flow position. Brushes are carried
through the tubes, cleaning as they pass through the tubes. The brushes
are caught by the "temporary" catch baskets at the opposite
ends of the tubes and held there for a brief period.
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The flow diverter is brought back to the normal flow position. This
carries the brushes back through the tubes to their "home" or
park positions where they wait until the next cleaning cycle is
initiated.
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The four-way flow diverter
is installed between the tubeside piping to and from the unit. A specifically
selected brush is inserted into each tube, and catch baskets are
semi-permanently installed at both ends of each of the tubes. Every basket is
fitted with an easily insertable and removable endclip which allows easy access
to the tubes for inspection and testing. At predetermined intervals the flow to
the unit is automatically reversed by the diverter. The reversal of flow carries
the brushes through the tubes where they are stopped and held by the baskets at
the opposite ends of the tubes for a brief period until the flow is
automatically reversed again to the normal direction. With each flow reversal
the brushes gently clean the interior surfaces of the tubes. Because this is
done no less than every eight hours, even hardenable deposits are yet in a soft
state and are easily removed. |
