Pultruded FRP Cooling Towers: DPC-70

Delta has a complete range of Pultruded FRP Cooling Towers – The DPC 70 Series. The total 30 years of experience and installation of 20000+ cooling towers has aided Delta Cooling Towers Pvt. Ltd. in launching this series. These are high-strength field-erected cooling towers known for their phenomenal corrosion resistance, high strength & durability. Pultruded FRP sections are used to build them. For larger capacity cooling towers, this is the best choice one can make. Apart from the impact resistance and performance benchmarks, the DPC-70 series is a sustainable option, as it is environmentally safe and has one of the best aesthetics a cooling tower can possess.

Pultruded FRP cooling towers or products, in general, are gaining popularity in the manufacturing industry due to obvious reasons and advantages of pultruded sections. It is already being used to manufacture composite parts for a multitude of applications. Cooling towers are one of the prime places where this is being used. Cooling towers like the wooden ones have ceased to exist now.

In the manufacturing of pultruded sections, continuous lengths of FRP sections with the same cross-section are made. The size of the manufacturing machines will be different depending on the application or scale. A heated die is used here and the raw materials are pulled through it, just as the name suggests. After this step, resin impregnation takes place, once the rovings are out of the guide and pass through a wet bath. Now a pulling mechanism is put in place to separate the cured profile from the die to complete the process.

These are counter flow design cooling towers that operate on the induced draft principle, whereby the hot water is directed downwardly through the fills or packings while cooling air is drawn upwardly through those fills or packings. The vertical contact of water and air in 180-degree direction enables it to gain optimal utilization of evaporation. Thus, resulting in greater efficiency and exceptional functioning. These cooling towers are precision designed to meet high-performance standards as demanded by customers. 

Salient features of Pultruded FRP Cooling Towers:

Structure:

The basic structure of the DPC 70 series cooling towers is FRP Composite material. They are an extremely durable material and corrosion-resistant. Pultruded sections are made at the factory in pieces and assembled at the customers’ site. These structures offer high tolerance, dimensional stability and are durable to withstand demanding environmental conditions. The high mechanical strength of the structure makes these towers stable against wear & tear over the long run of the operation. These materials are highly suitable for advanced cooling tower manufacturing.

Casing:

The casing of DPC-70 cooling towers is made of hand moulded opaque FRP sheets. FRP is a type of plastic that is reinforced with fiberglass, which has enough strength to withstand high wind velocities. These casings are also resistant to vibrations and earthquakes. Even in extreme conditions, if damage occurs to your cooling tower they can be easily repaired. Key features of these casings are stable quality, high tensile strength, smooth surface, rustproof, waterproof, resistance to acid, bubbling and cracking issues, etc. FRP casing Sheets are protected against the de-generating effect of harmful U.V. Rays of sunlight.

Water Distribution System:

The water distribution system of any cooling tower plays a major role in cooling tower performance. The DPC-70 series has a custom-engineered hot water distribution system, which is designed to ensure a uniform flow of water over the fill. The unique design of the system makes it function really well in low operating heads while maintaining high energy efficiency. The non-clogging nozzles are manufactured from special grade plastic material that is resistant to high temperature and corrosion.

Fan:

The fan assembly is designed and built for extreme conditions and high performance. The axial flow fan is located atop the tower, which is aerodynamic in nature and is designed especially for cooling tower applications. It is very important that the fan is balanced well so that efficiency is maintained. The design of the blade shape is optimized to deliver maximum airflow and high static pressures needed to meet the desired results. The fan blades are made up of Composite FRP material or cast aluminum. Variable pitch fan blade angles are adjustable for achieving high operating efficiency, large airflow, and a larger operating range.

Fills:

The fills of the cooling tower are the main heat transfer areas. Cooling Tower fills are made from high-grade plastic material, having properties of corrosion resistance. These fill in the pultruded cooling towers possess phenomenal heat exchange efficiency. They are either film type or splash type, and they ensure that contact time of hot water with air is maximum.

Fan Deck:

The horizontal surface at the top of the cooling tower is called the fan deck. It provides easy movement over the tower and allows access to the different components of the pultruded cooling tower. Fan deck is installed by laying the slip-resistant pultruded profiles. It provides a unique combination of lightweight yet heavy-duty and low maintenance life. 

Ladder/Staircase:

To access or scan the different parts of the cooling tower or approach for maintenance activities, the ladder or staircase is a very essential part. They are manufactured with a structural pultruded profile with excellent resistance to impact and fatigue. Profiles of ladders and stairs are produced by a high-temperature polymerization-pultrusion process.

Motor:

The motors in the DPC-70 series are from highly reputed manufacturers. Cooling Tower Motors are special duty motors produced for continuous operation in high-humidity locations and harsh environmental conditions. These three-phase induction motors are specifically designed for high efficiency, weather resistance, and long life. They are completely hassle-free for longer functional life.

Gear Reducer:

A gear reducer is a mechanical transmission device that connects the CT motor to a CT Fan. It is also known as a gearbox. It allows reducing the torque and speed of a motor resulting in the elimination of excessive vibration and reduction of noise levels. By making use of optimum grade material, these gearboxes are precisely finished and highly robust for extremely high service life. 

Drive Shaft:

A drive shaft is a pipe-like component that connects the gear reducer to the motor. The drive shafts in the pultruded cooling towers are made from steel or composite material, which are resistant to harsh environmental conditions. They are dynamically balanced and adequately aligned. They do not require any frequent maintenance or lubrication. Also, they are easily accessible and replaceable.

Drift Eliminator:

Water conservation & efficient use of water are the needs of the hour. Drift eliminators are specially designed for this purpose, as they prevent the water droplets and mist from escaping the cooling tower. They are manufactured from high resistance PVC material, and their function is to prevent water loss from the cooling towers.   

Fan Cylinder:

Fan cylinders or fan stacks are made up of translucent FRP segments joined together. The segments are manufactured by FRP composites using the hand lay-up process. They are a very crucial component when it comes to protecting the fan blades. They help in minimizing the sound and vibration from the cooling tower fan and help in maximizing the performance of the cooling tower.

Advantages of Pultruded FRP Cooling Towers:

● Ideal for all types of operations
● High efficiency and low power consumption
● Aesthetic and lightweight design
● Corrosion-resistant
● Little to no maintenance
● Long operation Life
● Heavy Duty
● Robust and weatherproof build

The innovation-driven philosophy of Delta Cooling Towers has helped us in building this advanced series of Pultruded cooling towers that are perfect for your heavy-duty needs and come with cutting-edge technology and various benefits such as high performance, low maintenance, low noise levels, environmentally safe and many more.

Download Brochure