Summer has arrived, temperatures are rising gradually, and the temperature of the circulating water is increasing significantly

Temperature rise of the circulating water: Adding more cold water towers and fans. Evaporation issue: Insulation is usually applied to oil pipelines, or silver powder is applied to them; the function of silver powder is to reflect sunlight and reduce heat absorption； The function of insulation in summer is to maintain a constant temperature, as it blocks sunlight. The same applies to liquefied gas equipment and pipelines.

What was said upstairs makes sense. First, the cooling load of the circulating return water is increased to make the outlet water temperature slightly lower than in other seasons. Another approach is to minimize the amount of heat absorbed by the equipment from the summer sun; for example, organize employees to place umbrellas over the pipeline systems to cool them down, just as they would do when a leader is coming for an inspection.

What to do if there is no margin in the circulating water volume? Screw-type refrigeration units often shut down in a cascade

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Turn on all the electric fans in the water tower

1. Replace the cooling medium. Such as chilled water 2; check whether the heat exchange tubes are scaled; 3. If it is confirmed that the shutdown is caused by excessive motor temperature, install a temporary air cooling system for the motor. 4. Check whether the unit’s heat exchange system is being operated as required; there are specific requirements for some air ducts, so do not make arbitrary changes.

Is the circulating water pipeline not insulated? Try adding ethylene glycol

It should be thoroughly cleaned before the weather gets hot, to remove sediment and other substances that affect heat exchange; this will be very helpful for getting through the summer

Considering the two aspects of heat balance, it is necessary to control the load while also ensuring the cooling capacity. 1. Insulate the pipelines to reduce the impact of sunlight and ambient temperature on them. Isolate the impact of sunlight on the circulating pool. 2. Measure the return water temperature under different loads; for those loads with lower return water temperatures (which require less heat dissipation) and those that are not sensitive to heat, reduce the flow rate of water to ensure proper cooling for the equipment with strict cooling requirements. It is important to take into account the entire process cycle; one should not reduce the water flow just because a single device generates little heat for a short period of time. Adjustments should be made based on the conditions when the most heat is generated. 3. All cooling towers are fully open. Maintain the cooling tower to ensure proper water and air flow, and increase the fan speed if necessary. 4. Take advantage of the low temperatures at night by running the cooling towers at full capacity to reduce the temperature, with the goal of bringing the water temperature under control by morning. 5. If the problem still cannot be resolved, a new cooling tower can be added at the return water side of the circulating pool; if a constant temperature below 25°C is required, an air-cooled chiller can be considered. It is also possible to consider separating a portion of the loads with strict temperature requirements from the main system, and cooling them using separate cooling towers or chillers. Since the calculation tool does not allow sending messages, if you need to do calculations, feel free to reply.