Abstract:

The temperature of raw gas at the outlet of gas collecting main is a key parameter for calculating cooling water demand and designing the primary cooler.By analyzing the cooling process of raw gas,a cooling model for the raw gas in the gas collecting main is established.The influence of dry coal water yield,clean gas yield,inlet temperature and outlet pressure of raw gas on the temperature of raw gas at the outlet is quantitatively analyzed.The outlet temperature of raw gas rises with the increase of dry coal water yield and raw gas pressure at the outlet,but it decreases with the increase of clean gas yield.