| The TWT
Total Water Control System (TWCS) is a comprehensive treatment
system for cooling systems, incorporating TWT patented deposit
control, IonGuard purification, and multiple filtration treatment
methods for all-inclusive protection, improved operating efficiency,
and energy, water, and chemicals savings. The system can be
used for cooling tower, chiller, and condenser applications, among
others
The Triangular Wave Deposit
Control subsystem controls deposits of scale
and biofilm in the cooling system, and in the TWCS itself. The Deposit
Control subsystem also enhances
the performance of the filter by causing the particles in the water to stay suspended and
not clog the filter media. The Ionization subsystem is a specially designed
set of silver and copper
electrodes that dispenses minute amounts of silver into the water to kill bacteria,
and minute amounts of copper to kill plant life.
The TWCS removes suspended solids down
to 5 microns, controls the dissolved solids (minerals), kills and prevents the regrowth of
algae and bacteria, reduces water loss due to bleed-off by as much as 75% and provides a
100% savings on chemicals.
Suspended solids enter the evaporative cooling process as dirt,
dust, organic matter and pollution. They are circulated through the system, fouling
condensers, chillers, heat exchangers and other process cooling equipment.
The flow from the water cooling system is cleaned continuously by
the TWCS. The system size is selected to clean the entire system volume at least once an
hour. Suspended solids concentrate in the filter, and are periodically back-washed to
drain. With the TWCS installed on the cooling tower sump, suspended solids, dissolved
solids, algae and bacteria, can be controlled and discharged without affecting or
interrupting cooling equipment operations.
Problems addressed by
Deposit Control Subsystem
-
Scale deposits on heat exchange
surfaces
-
Scale deposits on pipes and
pumps
-
Scale deposits on cooling tower
fill and frame
-
Biofilm deposits on cooling tower
fill
Deposit Control
Subsystem components
-
Deposit
Controller on makeup water pipe to
initially treat water
-
Deposit
Controller within TWCS to
continually treat water
-
Deposit
Controller controls deposits on all
equipment surfaces
-
Deposit
Controller controls deposits on IonGuard Subsystem electrodes
-
TWT systems improve the efficiency
and retard clumping in the sand filter
Problems addressed by
the IonGuard Subsystem
-
Microorganisms form a slime layer
on surfaces
-
Slime harbors dangerous bacteria
-
Slime traps acidic byproducts of
anaerobic bacteria next to metal surface
-
Heat transfer efficiency reduced
IonGuard Subsystem
components
-
Silver is a disinfectant
-
Copper is an algaecide
-
TWT Ionization System releases very
small amounts of silver and copper to control bacteria and algae
growth
-
TWT Ionization Systems kill the 2
most dangerous bacteria in cooling towers - Pseudomonas Aeruinosa and
Legionella
Problems addressed by
Filtration Subsystem
-
Continual bombardment by particles
-
Scratches can lead to localized
corrosion
-
Settled particles can lead to
under-deposit corrosion
Filtration Subsystem
components
-
Pre-strainer
-
Filter tank with sand filter media
(99% pure silica) and 1/8 to 1/4 inch gravel
-
90% removal capability of particles
5 microns or larger
-
Differential pressure switch
activates backwash (usually 3 minutes)
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