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2. 发明专利

JPS59132901A Method for conserving heat amount in distillation of aqueous solution of solvent with low boiling point forming azeotropic composition with water 失效
标题翻译：用低沸点形成水溶液的溶剂挥发成分的溶剂蒸馏水中保存热量的方法
公开(公告)号：JPS59132901A
公开(公告)日：1984-07-31
申请号：JP768083
申请日：1983-01-20
申请人： Nippon Kagaku Kikai Seizo Kk
发明人： TANABE FUJIO , MITSUI TAKASHI , KAYAMA IHEI , HATSUTORI SHINICHI
IPC分类号： B01D3/00 , B01D3/32 , B01D3/40
摘要： PURPOSE: To conserve the amount of a live steam used in heating, by reducing the pressure in the cooling water side of the condenser provided to the tower top of a fractionating tower while raising the pressure of generated steam to re-utilize the same as the steam for heating the fractionating tower.
CONSTITUTION: A stock liquid is supplied to a fractionating tower 1 by a stock liquid supply pipe 7 and dehydrated solvent vapor is condensed by a condenser 2 while the separated solvent is recovered through a solvent recovery pipe 8. The cooling water in the condenser 2 is introduced into a vacuum tank 3 while the temp. thereof is raised by the heat of condensation of the separated solvent and a part thereof is evaporated to generate steam which is, in turn, raised in pressure by a hot compressor 4 and passed through a recovery steam supply pipe 10 to be mixed with live steam from a live steam supply pipe while the resulting live steam mixture is blown into the tower bottom of the fractionating tower 1 through a heated steam supply pipe 6 as a heat source. Because the cooling water of the condenser 2 is converted to steam by the heat of condensation of the solvent and the amount thereof is reduced, cooling water is replenished from a cooling water inlet 9.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了节省加热中使用的活蒸汽的量，通过降低设置在分馏塔的塔顶的冷凝器的冷却水侧的压力，同时提高产生的蒸汽的压力以再利用它们用于加热分馏塔的蒸汽。构成：通过储液供给管7将分散塔1供给原液，通过冷凝器2将脱水的溶剂蒸气冷凝，同时通过溶剂回收管8回收分离的溶剂。冷凝器2的冷却水为引入真空罐3中，其被分离的溶剂的冷凝热升高，并且其一部分被蒸发以产生蒸汽，蒸汽又由热压缩机4在压力下升高，并通过回收蒸汽供应管10以与活蒸汽混合来自活蒸汽供给管，同时通过作为热源的加热蒸汽供给管6将所得的活蒸汽混合物吹入分馏塔1的塔底。由于冷凝器2的冷却水通过溶剂的冷凝热而被转化为蒸汽，并且其量减少，所以冷却水从冷却水入口9补充。

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