Mar 10, 2023Leave a message

What Is The Working Process Of Micro High Pressure Fan


The micro high pressure fan sometimes needs to use frequency converter for frequency conversion to meet the needs of industrial production. This is because different links and types of industrial production have different requirements for the output range and mode of miniature high-pressure fans. In this article, we will have a detailed understanding of the working process of the inverter miniature high-voltage fan.
It is the most convenient and efficient method to use frequency converter to regulate the speed of miniature high-voltage fan powered by three-phase motor. It can achieve the best energy-saving effect while adjusting the speed of the fan. The comprehensive monitoring of the cooling tower (deicing treatment of the cooling tower, preheating control of the micro high pressure fan motor, and the transmission function of the cooling tower operation data) is also of great importance. Therefore, Xiaodan more recommends the control system of the micro-high pressure fan of the cooling tower with the frequency converter as the core. The refrigeration unit in the central air conditioning system can provide air conditioning refrigerant, and its cooling system is composed of cooling coil, cooling pump, cooling water delivery pipe, cooling tower and micro high pressure fan. Cold water is continuously supplied to the building space through closed pipes. At the same time, it can also work on the return water with high temperature to achieve the purpose of refrigeration.
This is actually the heat exchange process, so what is its work flow?
The cooling water pump delivers the cooling water to the cooling tower and evenly sprays it on the surface of the cooling material. The flowing air generated by the fan operation of the cooling tower cools the cooling water on the surface of the cooling material. The cooled cooling water falls back to the water collector of the cooling tower, and then flows back to the refrigeration unit through the water pump to cool the refrigeration unit.
Where did the heat go?
Some of the heat is directly taken away by the flowing air, while the other heat is lost to the atmosphere with the evaporating air~
In this way, the wet-bulb temperature of the flowing air has a very important impact on the cooling efficiency of the cooling tower. When the cooling water flow through the cooling tower is the same and the temperature difference between the inlet and outlet is the same, the higher the wet-bulb temperature is, the greater the air flow is required. In addition, the heat dissipation demand of cooling water and air conditions are constantly changing, so the operating speed of cooling tower fan needs to be dynamically adjusted.
The distance between two points BC is the difference between the temperature of the cooling water at the outlet of the cooling tower and the wet-bulb temperature of the flowing air entering the cooling tower. When the cooling water flow and temperature difference between inlet and outlet are required to be constant, the smaller the difference is, the better the cooling effect of the cooling tower is. Generally, the larger the cooling tower, the better its heat dissipation effect.
In order to meet the requirements of heat dissipation conditions, it is imperative to adjust the speed of micro high pressure fan at all times~
Just now, based on the fixed cooling load (cooling water flow, temperature difference between inlet and outlet) and air wet-bulb temperature, the cooling tower has constant requirements for air flow, but the actual situation will have some fluctuations. Therefore, in order to meet the requirements of heat dissipation without supercooling of cooling water (that is, the temperature difference between the inlet and outlet is greater than the actual requirement), the rotating speed of the micro high pressure fan of the cooling tower needs to be adjusted at all times.
To sum up, the working process of the inverter miniature high-voltage fan is very rigorous and scientific. Because the work of the inverter miniature high pressure fan involves the coordinated operation of the miniature high pressure fan body and the inverter, the requirements on the working process will also be more detailed. We must pay attention to these when operating the inverter miniature high-voltage fan for industrial production.

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