There are three basic criteria involved in the model selection of Closed Cooling Tower:
1. clear total flow rate: a simple way is to select the specific total flow rate and working pressure of the circulating pump on the spot;Or according to the machine equipment shuzhi necessary refrigeration water flow to carry out selection.
2. Clear the temperature: according to the cooling circulating water of the machine and equipment, the outlet water temperature and the seepage temperature of the machine and equipment, that is, the seepage water and the outlet water temperature of the closed Cooling Tower; In terms of temperature, the closed cooling tower can be divided into three types: specification type, medium temperature type and high temperature type. Specification Model specification temperature difference is 5oC, medium temperature model specification temperature difference is 100C, high temperature model specification temperature difference is more than 10℃C.
3. Define the natural environment for the installation of closed cooling tower: Type selection should be carried out according to the natural environment for the installation of closed cooling tower. In general, medium and high temperature closed cooling tower should be installed immediately above the reservoir of the circulation system, and a closed cooling tower without water pan can be used. The basic type of closed cooling tower is generally installed in the main room on the roof or on the ground. According to the installation position, the closed cooling tower of low noise or ultra-low noise series products can be selected.
There are many other points about the type selection of closed cooling tower:
1.First, it is necessary to determine the water seepage temperature of the closed cooling tower, and then choose the basic type, medium temperature type or high temperature type of closed cooling tower.
2.clear application of machinery and equipment or can be in accordance with the situation on the spot on the noise provisions, can choose different levels of noise closed cooling tower.
3.The total flow rate of closed cooling tower is selected according to the refrigeration unit or the refrigeration water flow rate of the refrigeration unit. Generally speaking, the total flow rate of closed cooling tower should exceed the refrigeration water flow rate of the refrigeration unit. (Generally take 1.2-1.25 times).
4.Select the same type and specification of closed cooling tower as far as possible when several sets are connected in series.
