DamaTajhiz fiberglass cubic cooling tower DTC-CO 450

Purchase guide for DamaTajhiz fiberglass cubic cooling tower DTC-CO 450

The design of the DamaTajhiz cubic fiberglass cooling tower is 450 tons of cooling (CUBIC) with COUNTER FLOW airflow. The performance of DamaTajhiz cubic fiberglass cooling towers is designed according to the American Cooling Tower Institute (C.T.I) code ATC-105. In addition, the performance of the cubic fiberglass cooling tower has been approved by the American Environmental Protection Agency (EPA).

Performance of DamaTajhiz fiberglass cubic cooling tower DTC-CO 450

• With the COUNTER FLOW airflow, to cool the circulating water, some of the water in the cubic fiberglass cooling tower of the 450-ton refrigeration equipment is evaporated and due to the heat absorption of the evaporation process, the rest of the water returns to the cooling tower (a temperature higher than the WET BULB temperature) environment) which after collecting in the pan of the cooling tower is sucked by the water circulation pumps of the tower.
• In general, the calculation and design of cubic cooling towers have been done based on the inlet water temperature of 95 degrees Fahrenheit and the outlet cold water temperature of 85 degrees Fahrenheit and the wet air temperature of W.B.T.75°f.
• The temperature of the water leaving the cooling towers depends on the temperature of the humid air in each place, and the normal temperature of the water leaving the cooling tower is about 2.5 to 3 degrees Celsius higher than the temperature of the humid air (wb) of the same place. For example, if the maximum temperature of humid air in Tehran in summer is equal to 22 degrees Celsius, in normal conditions, the temperature of the water-cooled by the cooling tower is about 25 degrees Celsius.
• The cubic fiberglass cooling towers are of the suction type (DRAFT INDUCED) and the airflow rotation in the tower is possible in both natural and forced ways. The forced suction is done by the AXIAL fan located at the top of the tower.

Cubic cooling tower body and pan (CASING)

• The body parts of the cubic industrial cooling tower (DamaTajhiz), including the cubic fiberglass cooling tower (Damatjahiz) of 90 tons of refrigeration, are all reinforced and high-strength fiberglass, which is resistant to UV rays with two layers of the outer coating.
• Body and pan parts can be easily assembled for annual services. Secondary connections are made of non-metallic materials such as PRC-FRP-ABS or stainless steel or aluminum.
• Fibers: The type of basic fibers in the production of fiberglass parts is the type of wicker or mesh made in Korea, and needle or arzil or matte fibers are used to strengthen the body.
• Resin: The basic resin in the production of fiberglass parts is unsaturated polyester resin, isophthalic model, BKC brand, with ISO9001 quality management certificate from SGS company, and the desired resin code is 2200.
• The basin of the cooling tower is made of one fabric made of P.R.F. fiberglass with a thickness of 10 mm and two layers of matt reinforcement fibers compared to the panels to increase the strength, as well as two layers of vinyl anti-UV gelcoat. Ester is made in the inner wall, which is also drawn from the outside for easy installation on the foundation of the chassis.
• Louvers or shutters, the air intake is made of P.R.F blade or sine model with a thickness of 8 mm - includes 12 valves on 4 sides of the cooling tower, which makes the linear velocity of the incoming air in the louvers equal to 5 meters per second in the design They comment.
• The fan stack or fan oven is made of P.R.F fiberglass fibers with a thickness of 8 mm and includes anti-UV materials resistant to ultraviolet rays. The diameter of the top opening of the fan stack is 235 cm.

electric motor (MOTOR)

Electromotors of cubic fiberglass cooling towers (DamaTajhiz) are generally Motogen products and have IP54 sensitivity.
Cubic cooling towers (DamaTajhiz) are standard in terms of noise level, but they are also produced in low-noise and ultra-low-noise types, which are different from other towers in terms of size and price.
The fan of the system is suction type, axial or axial, and has aluminum material, aerodynamic section, 6 blades, low noise Super model, with a width of each blade of 25 cm, and the angle of the fan is set at 16 degrees.
The material of the airfoil propeller is 6-blade adjustable, anti-corrosion, and has static and dynamic balance, which causes smooth movement and long life of the bearings.
The power transmission system to the money belt is also 1 to 4.

Cooling tower packings

• The packing sheets of the cubic fiberglass cooling towers (DamaTajhiz) are stacked on top of each other in a honeycomb shape, the grooves of the packings are designed in a sinusoidal way and there is no possibility of clogging them, to create a suitable substrate for the formation of a water film and rapid evaporation. and more contact surface with air to maximize heat transfer. Packing of cooling towers (equipment) is usually 19-grade film type and made of P.V.C material with a special antibacterial coating with pharmaceutical grade (with FDA approval) and 400-micron thickness or splash packing or random splash etc. made of first-grade P.P material with grade It is medicinal and antibacterial with a thickness of 500 microns, the height of the packing media arrangement with a special surface is 170 square meters per cubic meter, which is offered according to the choice and order of the respected buyer.
• At the request of the respected customers, drip catcher parts are also installed on the packing of the cooling tower to prevent the water droplets from coming out by the fan, and to reduce the water particle ejection to less than 0.02 of the circulating water in the cooling tower, which is the minimum allowed amount. determined by the US Environmental Protection Agency is less.

cooling tower water distribution system (WATER DISTRIBUTION)

In the cooling tower (DamaTajhiz), the incoming water enters the water distribution nozzles through the central pipe or pipes made of polyethylene or PVC and is sprayed on the packings of the tower (choose the nozzles according to the climatic conditions of the region and the request different customers).

Supporters (SUPPORTS)

• The supporting bases of the cooling tower of the thermal equipment up to the DT-175 model are made of fiberglass and are used in higher capacities than hot galvanized supports.
• Cubic cooling towers in DT 50 and higher models are subject to the O.S.H.R. mandatory standard, and to access the mechanical and electrical components on the cubic cooling tower, hot-dip galvanized ladders are installed.
• The supporting chassis of the fan stack is made of galvanized sheet with a thickness of 6 mm and the protective nets of the fan guard are made of heated iron with a thickness of plated zinc ranging from 83 to 110 microns. The bases and chassis of the motor holder are also made of hot-dip galvanized angle.
• The panel holder, cooling tower floor chassis, external supports, and coil holding support on the tower chassis are made of hot galvanized zinc type iron with a thickness of 150 microns.
• All the internal support supports, including the supports of the drippers and also the packing supports, are made of fiberglass with the pultruded process of anti-corrosion P.R.F tensile fibers and with tensile and bending strength 4 times that of iron in one direction.

Eliminator or dropper

To reduce the number of water droplets drifting from the top of the cooling tower, PP eliminators are installed in the upper part of the nozzle, which is a blade type and reduces the number of water drops to less than 002.0% of the water in the rotation.

Components of the cooling tower fan

• Fan blade: The fan blade is made of plastic reinforced with glass fibers (fiberglass), which has more chemical and physical stability than aluminum propellers, and due to its polished surface, it has less friction with the surface and minimizes air resistance. . Isophthalic resin and high-quality fibers are used in the production of these propellers.
• Fan handle: This part is the connecting factor of the propeller and the hub, which is made of carbon steel with galvanized plating.
• Fan hub: It is made of unbreakable cast iron and is in the form of a coupling, which makes it possible to assemble the propeller easily.
• Types of bolts and nuts: In the production of propellers, dry bolts and nuts are used, which have a lot of resistance. It should be noted that if the fan is placed in acidic and corrosive environments, stainless steel connections are also used.

Inverter or variable speed cooling tower system (INVERTER)

In the case of ordering a cubic cooling tower, by installing an inverter system in the cooling tower's electrical panel, the speed of the fan and motor can be changed to accurately control the temperature of the cooling tower's outlet water. (If the inverter system is ordered, a separate switchboard must be installed for the tower)
The command to change the frequency of the inverter is operated by a sensor that operates in a specified temperature range. The operation of inverters is in the form of frequency changes, as a result, the power of the electric motor remains constant. In cases where the output water temperature is not very sensitive, the thermostat is used to control the output water temperature by turning the engine off and on.

Estimating the required space for installing a cooling tower

• All cooling towers must be installed outdoors and exposed to the direct flow of free air. There should always be enough space around the cooling tower without obstructions so that enough fresh air can easily be available to the tower.
• The hot air coming out of the tower must be discharged in such a way that it is not possible to return and recirculate it to the cooling tower, because the recirculation of such air in the tower causes the wet bulb temperature to increase and the water at the tower outlet to remain warm. becomes
• In general, we can say that to install towers up to 2.5 meters high for each ton of refrigeration, we need a surface of 0.1 square meters (in construction uses) for every 50 square meters under the building's useful foundation. Also, in towers with a height of more than 2.5 meters per ton of refrigeration, we need a surface of 0.12 square meters per 50 square meters under the building's useful foundation.

Transportation and installation of the cooling tower

• If the diameter of the cubic fiberglass cooling tower you purchased is more than 250 cm, it is recommended to transport the said tower in separate pieces to the project site to prevent damage to the cooling tower during transportation. The final assembly of the cooling towers with a diameter of more than 250 cm will be done at the project site by paying a separate fee.
• If it is not possible to transport the cooling tower to the project site or the installation site on the roof, please order the cooling tower separately (DEMONTAGE) at the time of the purchase order.
• All shipping costs and, if necessary, reassembly of the cooling tower at the installation site are the responsibility of the buyer.

Warranty and after-sales of DamaTajhiz circular fiberglass cooling tower DT.C.450

In the DamaTajhiz reference and specialized collection, technical information and guaranteed prices of Damatajhiz circular fiberglass cooling towers with a golden guarantee have been provided, so that you, dear ones, can enjoy the good feeling of optimal and smart shopping of cooling towers.
To view and learn about the warranty and technical specifications of damatajhiz circular fiberglass cooling towers, click on the "Technical Specifications" tab on the page of each of the following products.
damatajhiz cooling towers have a 3-year body warranty, 2-year internal parts warranty, and 10-year technical support from the damatajhiz company.