What are the actual operating conditions of the cooling tower of the chiller?

We all know that cooling water towers are an important part of centralized air conditioning systems. Open counterflow cooling water towers are widely used in air conditioning systems in large public buildings, but there are generally low efficiency problems in their actual operation. The following editor analyzes the actual operation of the cooling tower of the chiller.

The system composed of chillers and cooling towers establishes a semi-empirical theoretical model, conducts simulation calculations, and conducts transformation tests in actual buildings, and summarizes and analyzes the control methods for the combined frequency conversion adjustment and high and low wind speed adjustment of the cooling tower fan.

From the outdoor wet bulb temperature to the condensing temperature of the cooler, these three temperature differences represent the operating characteristics of the three types of cold sources. For open cooling towers, the limit of heat and mass transfer between cooling water and air is that the temperature of the outlet water reaches the outdoor wet bulb temperature, that is, the smaller T3, the better the heat transfer characteristics of the cooling tower, and vice versa Whether there are factors that reduce efficiency during operation.

At this stage, the operating strategies of most large-scale public construction cold sources are basically “one machine, one pump, one tower” and “large machine, big pump, big tower”. In this mode of operation, the cooling tower efficiency is generally low in winter and transition seasons. It shows that in the actual operation process, the advantages of the cooling water tower were not used during this period of time, which caused unnecessary effort.

The power consumption of air-cooled chillers basically accounts for 30% to 50% of the energy consumption of the air-conditioning system of the entire building. Therefore, from the perspective of the cold machine, consider how to use the cooling tower to effectively improve the heat dissipation efficiency, so as to achieve the effect of low investment and high return, and the efficiency of the cold source system.

In short, our analysis of the actual operation of the cooling tower of the chiller has the above content. In our daily life, we must deeply explore and constantly summarize. The development of the chiller in the industry is very important, so we must take relative measures.