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Counterflow Cooling Tower (Steel Closed Circuit Cooling Tower)
Counterflow Cooling Tower (Steel Closed Circuit Cooling Tower)
Description

The steel closed circuit cooling tower utilizes a counterflow method, as air enters the cooling tower from the bottom louvers. It is designed with a closed circuit structure with a number of advantages. Water will not evaporate, and there is an extremely low concentration of calcium and magnesium ions, thus no impurities such as calcium carbonate or magnesium carbonate are formed. This also prevents scaling problems that are often generated during cooling tower operation, and thus, saves overall maintenance expenses and extends the service life.

Working principle

Water, oil or other liquid flows in a circular manner inside the curved pipes, through which the heated fluid spreads into the water on the pipe surface. Air outside the unit enters from the air inlet screen at the bottom of the tower and directly opposite the main water flow. A small amount of water evaporates and absorbs heat, and the hot, wet air is released into the atmosphere via the exhaust fan at the top of the tower. The remaining water falls into the bottom basin, is recycled, then transported via a pump to the water distribution system, where it will be sprinkled on the pipes again.

Model selection

All the following dimensions are referenced to evaporative cooling products, and we also offer customization services according to customer requirements.

Parameter table of LYH square shape counterflow cooling tower (closed circuit)
Counterflow Cooling Tower (Steel Closed Circuit Cooling Tower)

1. Water inlet
2. Water outlet

3. Water filler pipe
4. Overflow pipe

5. Drain pipe

Design condition
  • Inlet water temperature: T1=37℃
  • Outlet water temperature: T2=32℃
  • Wet bulb temperature: TWB=28℃
  • Dry bulb temperature: T=31.5℃
  • Atmospheric pressure: P=99.4KPa
Model Overall dimension (mm) Approximate weight (Kg) Fan power Pump power Inlet/outlet pipe diameter
L W H Heaviest part Transporting Running (KW) (KW) (mm)
LYN-5 1260 990 2000 278 360 576 1.1 0.55 32
LYN-8 1260 990 2000 326 410 656 1.1 0.55 32
LYN-15 2010 1200 2000 543 685 1109 1.5 0.75 50
LYN-25 2010 1200 2000 712 890 1420 1.5 0.75 50
LYN-30 2500 1200 2000 805 995 1611 2.2 1.1 65
LYN-40 2500 1200 2000 928 1160 1879 2.2 1.1 80
LYN-50 2500 1200 2000 1020 1275 2040 3 1.5 80
LYN-60 2500 1510 2600 1160 1450 2320 2.2*2 1.5 100

Note: the above data belongs to copper heating pipe and its material should be determined by the property of fluid.


Counterflow Cooling Tower (Steel Closed Circuit Cooling Tower)

1. Water inlet
2. Water outlet

3. Water filler pipe
4. Overflow pipe

5. Drain pipe

Design condition
  • Inlet water temperature: T1=37℃
  • Outlet water temperature: T2=32℃
  • Wet bulb temperature: TWB=28℃
  • Dry bulb temperature: T=31.5℃
  • Atmospheric pressure: P=99.4KPa
Model Overall dimension (mm) Approximate weight (Kg) Fan power Pump power Inlet/outlet pipe diameter
L W H Heaviest part Transporting Running (KW) (KW) (mm)
LYN-70 2500 1510 2600 1377 1700 2737 2.2*2 2.2 100
LYN-80 2500 1510 2600 1560 1950 3120 2.2*2 2.2 100
LYN-100 3000 1510 3000 2162 2700 4370 3*2 3 125
LYN-125 3000 1510 3000 2568 3270 5136 3*2 3 150
LYN-175 3910 2000 3560 3321 4100 6642 4*3 4.4 250
LYN-200 3910 2210 3600 3688 4610 7422 4*3 4.4 80*8
LYN-250 4300 2520 3600 4712 5890 9420 4*4 6 100*8
LYN-275 4300 2520 3600 5200 6500 10400 4*4 6 80*16

Note: the above data applies to copper heating pipe of which the material should be determined depending on the property of fluid.
Counterflow Cooling Tower