{"en":"Counter Flow Evaporative Fluid Coolers","zh-cn":"NWN 逆流式闭式冷却塔"}

Counter Flow Evaporative Fluid Coolers

Counter Flow Evaporative Fluid Coolers

NWN series Counter Flow Evaporative Fluid Coolers flows the fluid medium that needs to be cooled in the high-efficiency serpentine heat exchanger.The external spray system continuously wets the surface of the coil for cooling, so that the cooled medium passes through the partition heat exchanger and sprays water heat exchange. 


NWN series Counter Flow Evaporative Fluid Coolers flows the fluid medium that needs to be cooled in the high-efficiency serpentine heat exchanger.The external spray system continuously wets the surface of the coil for cooling, so that the cooled medium passes through the partition heat exchanger and sprays water heat exchange. 

Components Instruction

 

Axial Flow Fan

Uses cooling tower special aluminum alloy axial flow fan,forward type blade structure design, small wind resistance, big air volume, low noise, good performance, high efficiency. Streamline high strength fan stack gurantees airflow uniform through the fan inlet and outlet area, maximum reduce the energy comsuption. Fan motor's protection class: IP55, Insulation class: F class.

 

Cooling coil

Cooling coils as the core parts of closed cooling tower, are maded up of great quality copper coil or steel coil. Coil inside is through cooling medium, outside is cooled by water spray to meet the cooling requirement.
Steel coils (G type) are used by high quality Ф25 mm seamless fluid tube, and processed by H.D.G.(hot dip galvanised) to enhance the coil pipe anti-corrosion ability, extend service life.
Copper coils (T type) are used by T2 deoxidized acid copper tube, silver electrode is used to connect between the copper pipe and elbow welding, low solder joint and good quality, design pressure is 1.2MPa.

 

Aluminium Zinc Plate

Shell plate uses imported aluminium zinc plate, which is one of the strongest corrision resistance plate, service life is 3-6 times of ordinary galvanized sheet, with strong termal resistance, high heat resistance, beautiful appearance, ect.

 

Spray pump

Used great mechanical seal to prevent from the leakage, made by dedicated outdoor motor, and special configuration imported bearings, to ensure that the fan, water pump has long term reliable operation, low power, large flow, low noise, excellent performance, etc. The pump body is precision casting, strong and long service life.

 

Drift Eliminator

Original detachable eliminator adopts good performance PVC material, its special structure could change the air flow direction, effectively remove from the wet air moisture in the air, redeased the drift loss below 0.001%, maximum save the water, what's more, to make sure the area around cooling tower no pollution, and prevent from the germs spreading.

 

Advanced Water Distribution System

The spray system uses in a variety of high flow rate and anti clogging basket type nozzles, to ensure the continuous uniform water spraying on the surface of the coil. Under the help of induced air, water can cover all the coils to the utmost extent to do the complete heat exchage among water, air and refrigerant. In this case, heat transfer efficiency will increase dramatically. The nozzle is connected on spray pipe branch. When cleaning, the nozzles and spray pipe branch can be easily dismounted.
 

Optional Accessories

♦ Noise reduction upgrade                     ♦ Anti-Freeze heater
♦ Vibration isolator                                 ♦ Stainless steel casing and framework / bolts and nuts (304 / 316)
♦ High-temperature upgrade                  ♦ Dual-speed Motor & VFD motor     ♦ Anti-Freeze heater

Technical Specification of NWN Series Cooling Tower
Model Cooling   
c
apacity
(K
w)
Fan power
 (Kw)
 Pump
 power 

 (Kw)
 Dimension (mm) Weight (Kg)
Length Width Height Dry Wet
NWN-35 35 0.55 0.75 1850 900 2350 450 800
2450
NWN-50 50 0.75 0.75 600 950
NWN-60 60 0.75 0.75 2500 720 1100
NWN-90 90 0.55*2 0.75 2350 1150 2400 1850 3300
2500
NWN-120 120 0.75*2 0.75 2100 3500
NWN-150 150 1.1*2 0.75 2850 1150 2650 2350 3800
2700
NWN-180 180 1.5*2 0.75 2750 4500
NWN-230 230 2.2*2 1.1 3350 1400 2650 2950 5000
NWN-290 290 2.2*2 1.1 3150 5500
NWN-350 350 2.2*2 1.1 3350 6000
NWN-400 400 2.2*2 1.1 3850 1400 2900 3550 6300
3250
NWN-450 450 3.0*2 1.5 4150 6800
NWN-500 500 3.0*2 1.5 3850 2200 3250 5150 7300
NWN-600 600 3.0*2 1.5 5550 7800
3350
3950
NWN-750 750 4.0*2 2.2 4450 2200 3500 6050 8500
3700
NWN-850 850 4.0*2 2.2 7120 10500
NWN-1000 1000 5.5*2 3.0 4950 3000 3600 7150 11000
NWN-1150 1150 7.5*2 3.0 7720 11500
3700
NWN-1300 1300 7.5*2 4.0 5450 3000 3950 8300 12700
NWN-1450 1450 7.5*2 4.0
4100
10680 14600
 

Please make sure your contact information is correct. Your message will be sent directly to the recipient(s) and will not be publicly displayed. We will never distribute or sell your personal information to third parties without your express permission.

Related Products