添加剂对气体水合物蓄冷过程影响的实验研究

Experimental Study for the Influences of Additives on the Gas Hydrate Cool Storage Process

对R1 41b水合物在添加不同比例的次氯酸钙或苯磺酸钠的结晶生成过程进行了实验研究 .实验表明 ,适当比例的添加剂使水合物生成过冷度明显减小 ,3 / 1 0 0 0 0的苯磺酸钠可以使过冷度减小 0 .78℃ ;水合物生成速度显著提高 ,8/1 0 0 0 0的次氯酸钙可以使水合物平均生成速度增加 0 .2 g/s.蓄冷装置实现了稳定高效的蓄冷密度和蓄冷效率 ,加入 3 / 1 0 0 0 0的苯磺酸钠时 ,蓄冷量为 4 .74MJ,蓄冷密度为 2 0 6.0 7MJ/m3,满足了实际蓄冷空调工程应用的要求 .

The experimental research on the crystallization process of gas hydrate HCFC141b is performed in this paper. The influences of different proportions of calcium hypochlorite or benzenesulfonic acid sodium salt on the crystallization process are studied. The results show that the degree of subcooling of formation decreases obviously, and the formation rate of gas hydrate is greatly accelerated by adding reasonable proportions of the additives. The degree of subcooling of formation decreases 0.78℃ by adding benzenesulfonic acid sodium salt of 0.03%, and the formation rate of gas hydrate increases 0.2 g/s by adding calcium hypochlorite of 0.08%. In the cool storage system, clathrate hydrates can be formed effectively and thermal energy can be stored efficiently. When adding benzenesulfonic acid sodium salt of 0.03%, the cold energy stored is 4.74 MJ and the cool storage density is 206.07 MJ/m 3. The performance of this cool storage system can meet the needs of the practical air conditioning engineering.