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• Dry Cooling Towers (Air Cooled Condenser):
o A-Type Dry Cooling Systems
o V-type Dry Cooling Systems
• Wet cooling systems:
o Natural draft cooling towers
o Natural draft and Circular mechanical draft cooling towers
o Hybrid Cooling Towers (combination of wet cooling and dry cooling
o Cell-Type Cooling Towers
Supplied Products
A-Type Dry Cooling Systems
Direct dry cooling
In direct dry cooling, steam obtained from station or from any other technical processes
condensates in air-cooled condenser.
A-Type Dry Cooling Systems
Steam Duct
Collector Cooling Air
Fan
Heat Exchanger
V-type Dry Cooling Systems
Functional principle of V-type Dry Cooling Systems
• Natural draft cooling towers
Wet cooling systems Classification of cooling towers
• Circular mechanical draft cooling towers
• Hybrid Cooling Towers
• Cell-Type Cooling Towers
- operate on the stack effect which causes
the hot air in the tower to rise (natural
draft).
- Wet natural draft cooling towers are used
mainly for electrical energy industry, but
can be used for other industrial objects.
- Such towers allow the cooling of high
water volumes and are designed both
from concrete and metal structures.
Natural draft cooling towers
Key features
• Advantages:
o No energy consumption for fans operation
o No recirculation
o Low costs of maintenance and spare parts
o Low thermal energy waste
• Disadvantages:
o Higher investment costs
o Large overall dimensions that could cause
difficulties with area aesthetics and
requirement of large areas for tower
installation
Natural draft cooling towers
- natural draft cooling towers equipped with
fans.
- The fans are installed at the air inlet for
forced-draft air movement or on a deck
above the fills to induce air flow.
- Increased air velocity, caused by the
installation of fans, allows a compact
design.
- Circular mechanical draft cooling towers
are used both for power station and for
process cooling applications.
Circular mechanical draft cooling towers
Key features
• Advantages:
o Investment costs are lower in comparison with
natural draft cooling towers
o No recirculation
o Low energy consumption for fans operation
due to stack effect
• Disadvantages:
o Energy consumption for fans operation
o Still rather high investment costs
o Costs of technical maintenance and spare parts
Circular mechanical draft cooling towers
Key features
• No visible plumes emitted from the
cooling tower
• Многосекционного или кругового
типа
• Multi-cell or circle type
• Mechanical draft
• Nowadays are widely used for power
stations and for many industrial fields
Hybrid Cooling Towers (combination of wet cooling and dry cooling)
Key features
• Advantages
o Reducing of plume size
• Disadvantages
o Higher investment costs comparably to
standard cell-type cooling towers
o High risk of recirculation
o High energy consumption
o Costs for service maintenance and spare
parts
Hybrid Cooling Towers (combination of wet cooling and dry cooling)
• The multi-cell design flexibility renders
possible to fit different environmental air
temperatures
• Forced air circulation
• Compact structure
• Maximum usage of factory-built structural
components
• There are structures for any cooling water
flow and any heat capacity
• These cooling towers type is widely used
for power plants and for many branches of
industry
Cell-Type Cooling Towers
Key features
• Advantages:
o Low investment costs
o The multi-cell design renders possible to fit
any cooling load and air temperature
o Maximum usage of factory-built structures
permits to reduce building period
• Disadvantages:
o Energy costs for fans operation
o Technical service and spare parts costs
o Possibility of recirculation
o Possible negative influence of standing by
cooling towers
Cell-Type Cooling Towers
Closed Joint-Stock Company "Energopromservice-Engineering"
Post address:
11, Komsomolsky Prospect, Moscow, Russia
119146Tel./fax:
+7(495) 780-57-86 - multichannel
E-mail: [email protected]
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