The Influence and Analysis of Air-water Ratio of Cooling Tower on the Operation of Cooling Water System
At present,the energy saving of air conditioning water system is one of the most common and effective means in the construction industry,and the energy saving of cooling side system is an important part of it. This paper discusses and analyzes the cooling principle of cooling tower,in which the wet bulb temperature and approximation degree are the decisive factors affecting the efficiency of cooling tower,and the approximation degree range of 3～5℃ is economical and reasonable. Through the thermal calculation and analysis of the cooling tower system operating conditions,the gas-water ratio is closely related to the cooling tower characteristic number and cooling number,and is also an important factor to determine the cooling tower outlet temperature. Through further research on the relationship between gas-water ratio and cooling tower characteristic number and cooling number,it is found that considering the economy of cooling tower,the economic application range of gas-water ratio under the design condition of conventional cooling water system is 0.8～1.0. If the reliability and economy of the system are taken into account,it is recommended that the characteristic number of cooling tower should not be less than 0.8,and the gas-water ratio should not be higher than 1.2. When formulating the operation strategy of the cooling side system,it is necessary to consider the sensitive variation interval of the cooling tower air flow and cooling water flow to achieve efficient regulation and avoid ineffective waste of energy.
Cooling waterApproximation degreeGas-water ratioCooling tower characteristic numberCooling numberCooling water
万方数据
维普
