Testing and Analysis of Coal Gas Dehydration Equipment in Combined Cycle Power Plant
Mist in the coal gas has negative influence on the safe operation of compressor blades. A new method of measuring mist in gas by using superfine fibreglass is introduced. The bent plate dehydration equipment is composed of many pieces of stainless plate which has some collection hooks at every corner. Compared with the other dehydration unit, the bent plate dehydration has several characteristics: it can be manufactured easily, the pressure loss is low and the dewatering efficiency is high. The bent plate dewatering unit is suitable for dehydrating mist of the blast furnace gas, convertor gas, coke-oven gas and city gas. By the test of dehydration of CCPP system under different operating load, the result shows that airflow velocity and gas/liquid ratio have a great influence on the coal gas dewatering efficiency. If the washing water flow rate and pressure are changed, the efficiency will change at the same time. The diameter of droplet will change to the opposite direction if the water pressure is increased. The data also show that the limited wind speed relates to the type of dewatering unit, structure parameters,liquid/gas ratio, gas velocity and physical parameters of the droplet. The operation water pressure of electrostatic precipitator and working voltage have been proposed by testing and analysis. It will have great advantage to the safe operation of turbine.
Combined cycle power plant (CCPP) Mist content Blast furnace gas Gravimetric method
XIAO Lichun DING Zhijiang
Yanshan University,Qinhuangdao 066004,PR China
国际会议
11th International Conference on Electrostatic Precipitation(第11届国际电除尘学术会议)
杭州
英文
557-560
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）