Closed Circuit Cooling Towers

High-efficiency Elliptical Coil

High-efficiency heat transfer coil features an elliptical design that provides ultra-high cooling and condensation heat transfer efficiency. The working fluid (refrigerant or cooling water) flows through the coil, while air and spray water counterflow heat exchange with the working fluid inside the coil, greatly improving heat transfer efficiency. The special elliptical coil design reduces the air pressure drop through the unit, while the larger coil surface area increases the unit's cooling capacity.

The elliptical coils are arranged in a staggered pattern in the direction of airflow, providing a higher heat transfer coefficient. Additionally, all heat exchange coils are tilted downward in the direction of the working fluid flow to facilitate the discharge of the working fluid (refrigerant or cooling water) inside the coil.

The heat exchange coils are made of high-quality steel strips that have passed through multiple strict quality control procedures. Each coil undergoes rigorous material quality confirmation and multiple tests before it can be installed in the unit. The final assembled coils need to undergo a 2.76 MPa air-tightness test in a water tank, and the pressure holding test time should not be less than 30 minutes. The standard configurationof carbon steel coils must also be hot-dip galvanized in a molten pure zinc tank at a high temperature of 427℃ to ensure that the coils have strong corrosion resistance.

Also provides 304 stainless steel elliptical coils, 316L stainless steel elliptical coils, and copper round tubes with better corrosion resistance capabilities.

For customers in the cold countries, we have specially designed a finned hot-dip galvanized coil that can run in dry mode during winter. This means that the water spray pump is stopped, and the coil is cooled solely by air through the fan, saving water and avoiding the problem of winter freezing.

High Efficiency Eliminators

The high-efficiency eliminators is a standard component of the evaporative cooling tower, including SMCT, SMEC, and SMCC, etc. It ensures a water circulation usage rate of up to 99.999% (i.e., water loss due to evaporation is less than 0.001% of the spray water volume).
The eliminators is made of corrosion-resistant and fire-resistant virgin PVC material, with an oxygen index of ≥32. It is installed in the form of block inside the unit, which is easy to dismantle for maintenance of internal water distribution systems and other components.

New Air Inlet Louver

The louver is designed to be quickly removable without the need to unscrew any bolts. The entire louver, including the louver frame, can be easily removed to facilitate access to the water coil, cleaning of the water coil and air inlet louver. The outer frame of the louver is made of the samesteel plate material as the water coil, and the louver itself is made of flame-retardant native PVC, which is also UV-resistant and has a long service life.

 

Anti-Clogging Nozzle

The unique design of large-caliber anti-clogging nozzle, ensures that all surfaces of the heat exchange fill are completely covered with spray water, thus achieving maximum thermal performance. This nozzle generates two water jets that collide and oscillate from side to side, resulting in a "scanning" spray pattern that covers the entire surface area of the fill material. Conventionally designed nozzles produce uneven spraying, resulting in "dry spots" or packing surfaces that are not completely covered with water, thus reducing thermal performance. A deflector plate below the nozzle outlets distributes the spray evenly across the fill surface, and this feature further ensures that the water is uniformly sprayed on the heat transfer surface of the fills.

Available in various large diameter nozzles (Diameter≥ 25.4mm) and is installed on the side of the spray pipe, allowing for unobstructed flow of debris through the water distribution system. When used with counterflow heat transfer equipment, the high-pressure water distribution system helps to force debris through the nozzle, reducing maintenance requirements. With no moving parts, the nozzle requires minimal maintenance and seldom needs to be replaced.

Motor

Motor with an embedded magnet structure, which has a certain saliency characteristic. Therefore, it can be controlled in the following ways: 1) Maximum torque/current control mode; 2) Maximum power factor control mode; 3) Ordinary control mode for Permanent Magnet Motor (id=0). When the first two control modes are used in this series of products, the power factor of the motor can reach 0.95 or above, making it a highly efficient and energy-saving motor with the lowest heat generation. Therefore, this series of products adopt a cooling method with a built-in fan.

Fan

Provides an optional super low-sound fan for all induced draft units. The super low-sound fan features an ultra-wide blade design, which suitable for noise-sensitive applications requiring the lowest noise level. The ventilation fan blade is made of high-strength fiberglass material or hollow aluminum alloy, with a forward-leaning blade design. The super low-sound fan reduces noise by 10-15 dB(A) compared to standard fans.

The standard configuration of the super low-sound fan uses a belt drive, while a direct drive option with a permanent magnet synchronous motor is also available. This drive method eliminates the need for adjusting fan belt tension and adding fan bearing lubricants for maintenance. The super low-sound fan can operate maintenance-free for a long time.