Closed Cooling Tower

• The fan used in the closed cooling tower is a waterproof aluminum alloy housing axial-flow fan. This fan is a rotor motor, featuring a compact structure, easy installation, reliable operation, low noise, and high energy efficiency. It has an insulation class of F and a protection level of IP55. The blades are available in steel, nylon, and aluminum alloy for customers to choose from
• The water pump is from a well-known Chinese brand, featuring low operating noise, high efficiency, easy maintenance, long service life, and low operating costs. The pump casing is available in cast iron and stainless steel for customers to choose from
• The standard configuration for the shell of a closed cooling tower is aluminum-zinc coated sheet, with the coating composed by weight of 55% aluminum, 43.4% zinc, and 1.6% silicon. It has a high thermal reflectivity, twice that of galvanized steel, good heat resistance, corrosion resistance four times that of ordinary hot-dip galvanized steel, and a beautiful appearance. According to customer requirements, materials such as SUS304 stainless steel, hot-dip galvanized steel, and cold-rolled sheet

• The core component built into the closed cooling tower—cooling coil. We provide T2 deoxidized copper tubes, SUS304 stainless steel, hot-dip galvanized steel tubes, aluminum tubes, and other materials for customers to choose from. Each type of heat exchanger features high heat transfer efficiency and long service life
• The electric control box, as the control part of the closed cooling tower, uses control electrical appliances selected from well-known brands. They have stable performance, are easy to operate, and can provide a variable frequency control system according to the actual needs of the customer. This ensures stable control, strong anti-interference ability, and allows the cooling tower to always operate according to the customer's actual requirements, achieving energy saving and cost-saving purposes

Closed cooling towers cool the liquid by utilizing the principle that heat is absorbed during evaporation. The spray water (cooling water) is stored at the bottom of the cooling tower. The working fluid (softened water or other liquid) circulates in a closed loop through the heat-exchange coils inside the closed-circuit cooling tower. Spray water is pumped by the spray system, distributed via a water distribution network and nozzles, and partially evaporates on the surface of the coils, absorbing heat and thereby lowering the temperature of the working fluid within the tubes. Water droplets and unevaporated water from the hot air are intercepted by splash baffles and flow through a PVC heat-exchange layer. The water in the PVC layer is cooled by the passing air, reducing its temperature before it falls into the collection tray below. From there, it is recirculated by a pump back to the water distribution system and sprayed again onto the coils, completing the continuous cooling cycle.

• 1. The fan is a waterproof aluminum alloy housing axial fan.
• 2. The pump is a well-known brand, featuring low operating noise, high efficiency, easy maintenance, and a long service life.
• 3. The housing is equipped with a zinc-plated plate as standard. According to thecustomer's requirements, we can choose SUS304 stainless steel, hot dip galvanized steel sheet, coldrolled sheet spray and other materials.
• 4. The built-in core component of the closed cooling tower is cooling coil. We provides T2 deacidified copper tube, SUS304 stainless steel, hot dip galvanized steel pipe, aluminum tube and other materials for customers to choose.