Copper Tube Cooling tower EVAPCO copper cooler T2 de-acidified
99.99% Cooling tower BAC copper tube cooling tower:
2.2 Advantages for cooling towers
1) Closed loop
Preventing the impurities into the system to block the cooling
tubes, soft water is adopted to avoid overheating caused by scaling
to the water pipes.
2) Automatic temperature control
Automatic start/stop spraying system to achieve effective control
on the temperature of cycled cooling water, the temperature of the
cooling water can be controlled below 40 ℃. With this function, the
water & energy cost is reduced to the lowest point with intelligent
control to the number of working fans and start & stop of spray
pump.
3) No need of water pool and cooling tower
Low cost, small space occupancy, easy installation and move with
the welder.
4) Automatic digital display of temperature control
Energy efficient and user friendly.
5) Cooling system structure
Galvanized iron beam.
6) High efficiency heat exchange
Four side air inlet louvers supply sufficient amount of wind
blowing through cooling coils taking most of the heat away, which
effect is strengthened via spray cooling water running through the
cooling coils.
7) Small consumption of soft water
Filling the soft water once is enough for half-year operation
without water loss.
Antifreeze is required in the winter season for areas subject to
freeze temperature.
- Anti-freeze Solutions
In the high-altitude area where temperature drops sharply during
the winter season below 0℃, the circulation water of closed circuit
cooling tower shall freeze without heat load even sometimes when
the circulation water keeps running. Therefore, enough care shall
be given to the anti-freeze measures for this concern. Normally two
anti-freeze solutions are considered:
(1) Put the circulation water under certain heat load, maintaining
the water temperature higher than 7℃(for lower altitude area not
higher than 3℃). To keep this heat load, normally the use of
immersed electric heater is applicable, meanwhile a minimum flow
rate of the circulation water shall be maintained.
(2) The best solution is suggested the use of antifreeze liquid,
like glycol. For detailed mixture proportions, please consult your
WELL representative.
- Glycol(C2H6O2)liquid is the main ingredient for most antifreeze
mixtures, the negative aspect for this solution is largely its high
cost (≈1000USD /Ton). Below is an reference mixture option:
| Glycol (wt％) | 0 | 10 | 20 | 30 | 40 | 50 | 58 | 80 | 90 | 100 |
| Congreal (C) | -0.0 | -3.5 | -8 | -15 | -24 | -36 | -48 | -47 | -29 | -13 |
- Alcohol(CH3OH or C2H5OH) provides a more affordable cost for
application,while the following aspects must be considered:
Methanol is poisonous, and enough care must be taken for safe
operation
Methanol and Ethanol is volatile, and after long term use, the
density may decrease. Below 30% mixture ratio provides lowest
volatile level and could be effective in the case of -20℃
For external circulation that relates to spray system, certain
measures shall be taken to avoid the spray water from getting
frozen in the basin. Electrical immerse heater is recommended for
this consideration.
The spray pump also needs to be protected against cold weather, and
this may concern the thermal materials like saw dust etc.
Note: All chemical addictives must be compatible with the
equipments and piping systems!
