- Aug 23, 2017 -
Cooling tower in accordance with whether the direct contact between water and air is divided into closed cooling tower and open cooling tower, for how to choose the two, in addition to considering the cost of investment, but also from the performance of an analysis and comparison.
1, open cooling tower
The cooling principle is that the circulating water is sprayed to the filler of the glass fiber by means of spray, and the heat is transferred through the contact of water and air, and then the fan is driven by the air circulation in the tower, and the hot air Bring out, so as to achieve cooling. This type of cooling, the first phase of the input less, but the higher operating costs (water consumption, power consumption).
2, closed cooling tower
The cooling principle is, in short, two cycles: an inner loop, an outer loop. No packing, the main core part of the copper tube surface cooler.
① internal circulation: with the object device docking, constitute a closed loop system (circulating medium for soft water). The equipment is cooled, and the heat in the target device is brought out to the cooling unit.
② outside the cycle: in the cooling tower, the cooling tower itself to cool. Not in contact with the internal circulating water, but through the cooling tower inside the copper tube surface cooler heat exchange heat. In this cooling mode, through the automatic control, according to the water temperature set the motor running. Two cycles, in the spring and summer high temperature environment, the need for two cycles at the same time running. Autumn and winter environmental temperature is not high, in most cases only an internal circulation.
Cooling tower is mainly used in air conditioning cooling system, refrigeration series, injection molding, tanning, foaming, power generation, steam turbine, aluminum processing, air compressor, industrial water cooling and other fields, the most used for air conditioning cooling, refrigeration, plastic chemical industry The The specific division is as follows:
A, air conditioning room temperature: air conditioning equipment, cold storage, refrigerated rooms, frozen, air conditioning and so on;
B, manufacturing and processing categories: food industry, pharmaceutical industry, metal casting, plastic industry, rubber industry, textile industry, iron and steel plant, chemical industry, petrochemical products category;
C, mechanical cooling class: generators, steam turbines, air compressors, hydraulic machines, engines, etc .;
D, other industry ...
The effect of the cooling tower is to carry waste heat of the cooling water inside the tower with the air heat exchange, so that waste heat to the air and into the atmosphere.