Basic principles to be noted when selecting cooling towers
Cooling tower. Fan matching can ensure long-term normal operation without vibration or abnormal noise, and the blades have good water resistance and sufficient strength.
According to the temperature of the cooled water, the selection of cooling towers includes: high-temperature towers Medium temperature tower Room temperature tower.
According to the current installation location and noise requirements, the selection of cooling towers includes: cross flow tower and counter flow tower.
3. Select the cooling water volume according to the cooling water volume of the chiller unit. In principle, the water volume of the cooling tower should be slightly larger than that of the chiller unit.
When selecting multiple water towers, try to choose the same type of cooling tower.
Key points to note when selecting a cooling tower:
The structural material of the cooling tower body should be stable Durable and long-lasting Corrosion resistant, precise assembly and matching.
2. Uniform water distribution There is less wall flow The spraying device should be selected reasonably and not easily blocked.
3. The type of water filling material meets the water quality requirements Water temperature requirements.
4. Fan matching can ensure long-term normal operation without vibration or abnormal noise, and the blades have good water resistance and sufficient strength. The installation angle of the fan blades can be adjusted, but it must be ensured that the angle is consistent and the current of the motor does not exceed the rated current of the motor.
5. Low power consumption Low cost, small and medium-sized steel frame glass cooling towers also require light weight.
6. It should be avoided to place it in heat sources as much as possible Waste gas and smoke generation points Chemical storage area and near coal piles.
The distance between cooling towers or between towers and other buildings should not only consider the ventilation requirements of the towers and the mutual influence between the towers and buildings, but also take into account the fire prevention of the buildings The safety distance for explosion prevention and the construction and maintenance requirements for the tower.
The direction of the inlet pipe of the tower can rotate at 90 °, 180 °, and 270 °.
9. The material can withstand low temperatures of -50 ℃, but it should be specified when ordering in areas where the average temperature in the coldest month is below -10 ℃, so that anti icing measures can be taken. The cost of cooling towers has increased by approximately 3%.
10. The turbidity of circulating water should not exceed 50mg/l, and should not exceed 100mg/l in the short term. It should not contain oil stains and mechanical impurities. If necessary, measures should be taken to eliminate algae and stabilize water quality.
11. The water distribution system is designed based on the nominal water volume. If the actual water volume differs from the nominal water volume by more than ± 15%, it should be specified when ordering to facilitate design modifications.
During the storage and transportation of components, heavy objects must not be placed on them, they must not be exposed to sunlight, and fire prevention measures must be taken. Installation of cooling tower Transportation Electricity shall not be used during the maintenance process Gas welding and other open flames are prohibited, and firecrackers and fireworks are not allowed to be set off nearby.
13. In the design of multi tower circular towers, the net distance between towers should be maintained at no less than 0.5 times the diameter of the tower body. Cross flow towers and counter flow square towers can be arranged in parallel.
14. The selected water pump should be matched with the tower to ensure process requirements such as flow rate and head.
When selecting multiple towers, try to choose the same model as much as possible.
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Guangdong Trlon Energy-saving Air Conditioning Equipment Co., Ltd.
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