CAJ | 학술논문

热虹吸再沸器主要依靠塔釜液与换热管内汽液两相流之间的密度差作为推动力，通常不能用于塔釜出料组成为宽沸程的物系。针对热虹吸再沸器的这一缺点，结合甲苯二异氰酸酯生产装置中脱光气塔的操作状况，提出了从塔下部引入一股轻组分进入再沸器的方法，以达到提高再沸器换热管内的汽化率、促进物料在再沸器循环的目的。通过模拟计算获得了最佳的操作条件，并在现场进行验证，表明此方法可行，扩展了热虹吸再沸器在塔釜物料为宽沸程物系的应用。
열홍흡재비기주요의고탑부액여환열관내기액량상류지간적밀도차작위추동력，통상불능용우탑부출료조성위관비정적물계。침대열홍흡재비기적저일결점，결합갑분이이청산지생산장치중탈광기탑적조작상황，제출료종탑하부인입일고경조분진입재비기적방법，이체도제고재비기환열관내적기화솔、촉진물료재재비기순배적목적。통과모의계산획득료최가적조작조건，병재현장진행험증，표명차방법가행，확전료열홍흡재비기재탑부물료위관비정물계적응용。
The thermosyphon reboiler mainly relies on the difference density between liquid in the bottoms and vapor?liquid two?phase flow in the inner tubes as a driving forces, it is usually not available for the system which tower materials is wide boiling range. Aimed at this shortcoming, combined with operation status of phosgene gas desorption tower in toluene diisocyonate production plant, this research proposed that adding the light component into the reboiler from the column bottom to increasing vaporization rate in the heat transfer of reboiler and promoting materials circulation. The best operation condition was obtained by simulation and carried out. The feasibility of this method was proved. This method extended application of thermosyphon reboiler in the system which tower materials was wide boiling range.