Closed Cooling Tower/Cooling Tower System

    Closed circuit counterflow cooling tower is a type of closed cooling tower where water flows downward through the fill media while air flows upward, in opposite directions.

    The counterflow tower requires approximately 20% less fill volume compared to crossflow towers, leading to more efficient heat exchange and higher cooling efficiency.

    The water distribution system of counterflow towers is less prone to blockages, the fill media stays clean and does not age easily, there is minimal wet air recirculation, and anti-freezing measures are easier to implement.

    Multiple closed circuit counterflow cooling towers can be designed for modular operation, allowing for individual or collective operation based on water temperature and flow requirements in winter.

    These towers are easy to install, maintain, and repair, with lower costs, making them popular for use in air conditioning and industrial cooling systems with medium to large-scale water circulation.

 

Model	Cooling capacity	Cooling flow m3/h	Working pressure Mpa	Spray pump		Fan		Inlet and outlet pipe diameter	Overall dimension mm			Net weight kg	Running weight kg
		5℃
	Kcal/h	Wet bulb 285℃		Capacity kw	Flow m3/h	Capacity kw	Air flow m3/h		L	W	H
LBN-6T	30000	6	0.1	0.55	20	0.55	8300	DN65	2200	1000	1980	350	500
LBN-10T	50000	10	0.1	0.55	20	0.75	12500	DN65	2300	1000	2000	450	720
LBN-15T	75000	15	0.15	0.55	20	0.55*2	16600	DN65	2300	1000	1980	530	850
LBN-20T	100000	20	0.15	0.55	20	0.75*2	25000	DN65	2300	1000	2000	580	890
LBN-25T	125000	25	0.2	0.75	34	0.75*2	25000	DN80	2800	1250	2200	750	1520
LBN-30T	150000	30	0.2	0.75	34	1.1*2	31000	DN80	2800	1250	2200	830	1650
LBN-40T	200000	40	0.2	0.75	34	1.1*2	31000	DN100	2900	1250	2760	960	1860
LBN-50T	250000	50	0.25	1.1	60	1.5*2	36000	DN100	2900	1500	2760	1050	2080
LBN-60T	300000	60	0.25	1.1	60	1.5*2	36000	DN100	3000	1750	3000	1220	2260
LBN-70T	350000	70	0.3	1.5	87	1.1*4	50000	DN125	3200	2000	3000	1350	2720
LBN-80T	400000	80	0.3	1.5	87	1.1*4	50000	DN125	3200	2200	3000	1550	2980
LBN-100T	500000	100	0.3	2.2	100	1.5*4	72000	DN150	3600	2200	3000	1780	3080
LBN-125T	625000	125	0.3	2.2	100	1.5*4	72000	DN150	3600	2200	3220	1980	3280
LBN-150T	750000	150	0.3	2.2	100	2.2*4	100000	DN150	3660	2200	3380	2350	3980
LBN-180T	900000	180	0.3	4	100	5.5*2	146000	DN150	3900	2300	3420	2680	4650
LBN-200T	1000000	200	0.4	4	100	5.5*2	146000	DN150	4800	2300	3480	3180	4780
LBN-250T	1250000	250	0.4	2.2*2	200	7.5*2	162000	DN200	5200	2300	3680	4180	5570
LBN-300T	1500000	300	0.5	2.2*2	200	7.5*2	162000	DN200	5500	2300	4210	4850	5980

• Stainless steel pipe 304/316L

    The stainless steel components of the cooling tower have excellent corrosion resistance and weldability, making them durable with a long lifespan. They are resistant to high temperatures, high pressure, and have high strength. Additionally, stainless steel is environmentally friendly as its smooth inner walls prevent fouling, algae growth, and bacterial contamination, ensuring healthier water quality.

• Panel

    The cooling tower panels are typically made of Korean Pohang magnesium aluminum zinc-plated sheets with a thickness of 2.0mm. These panels have high corrosion resistance and maintain their original appearance even in harsh environments due to their high strength and rigidity. They can withstand large external forces and pressures.
 
    Moreover, the magnesium aluminum zinc-plated sheets have good plasticity and processability, allowing for cutting, bending, punching, and other processing as needed to meet various design requirements.

• Fan

    The cooling tower blades are made of engineering plastics or aluminum alloy, equipped with three-proof motors for low noise and high transmission efficiency, with non-slip properties in rainy conditions.
    The number of fans varies according to the model to increase exhaust area, improve cooling efficiency, and reduce fan damage.
    The motor is specifically designed for use in full closed type cooling towers. It can operate continuously in humid conditions, offering high efficiency, low noise, long lifespan, and high reliability.

• Spray Pump

    The close type cooling tower spray pump features a high-quality mechanical seal that is not restricted by direction, ensuring no leakage and a long service life.
    The motor is specifically designed for outdoor use and has an impeller with excellent hydraulic model design for good dynamic and static balance.
    SKF bearings and EKK mechanical seals, sourced from Sweden, ensure the pump's long-term reliable operation with features such as low power consumption, low head, high flow rate, and low noise.

• Filler

    The cooling tower fill is made of high flame-retardant 100% PVC virgin material.
    The water collector and air guide structure are integrated, allowing the fill to be directly suspended without the need for adhesive. The excellent structural design ensures proper spacing, even water distribution, efficient heat exchange, prevention of clogging, and easy installation and maintenance.

• Dehydrator

    The Dehydrator System uses high flame-retardant 100% PVC virgin material and features a clip-type water collector for efficient dewatering, very low drift rate, and easy disassembly.

• Sprinkler System

    The cooling tower spray system utilizes patented centrifugal spray nozzles with anti-loosening design, large aperture, low pressure loss, uniform water distribution, and resistance to clogging.

• Electric control cabinet

    The electrical control cabinet is custom-made according to user requirements, featuring international brands, temperature control systems, alarm systems, overload protection, and support for both manual and automatic control modes.
    Users can freely set temperatures, and the system will automatically start and stop the fan and spray pump based on detection data.