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建立有冷凝水、完成液预热各效进料,或冷凝水、完成液闪蒸,闪蒸蒸汽加入对应压力的蒸发器中,作加热蒸汽的复杂逆流多效蒸发系统的数学模型,提出了一种采用常规迭代法求解的计算方法,用面向对象的Pascal语言,编制计算程序,可模拟计算二至七效常规和复杂逆流蒸发系统,并以碱液为例,计算和比较三效逆流的5种流程。
The mathematical model of the complex countercurrent multi-effect evaporation system with condensate, complete preheating of each effect feed, or condensate, liquid flash evaporation and flash steam addition to the corresponding pressure was established, A calculation method which is solved by the conventional iteration method is developed by using object-oriented Pascal language and a calculation program is compiled to simulate two to seven-effect conventional and complex counter-current evaporation systems. Taking lye as an example, the three-way countercurrent 5 kinds of processes.