塔器吹扫、试压、充瓦斯方案（Scheme of blowing, testing and filling gas in tower）.docVIP

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塔器吹扫、试压、充瓦斯方案（Scheme of blowing, testing and filling gas in tower）.doc

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塔器吹扫、试压、充瓦斯方案（Scheme of blowing, testing and filling gas in tower）

塔器吹扫、试压、充瓦斯方案（Scheme of blowing, testing and filling gas in tower） 2 million 400 thousand tons / year coking unit Tower purging and pressure test, gas charging scheme 1, tower through blowing and pressure test process Through blowing into a nitrogen purge replacement and steam purging and pressure testing. 2, through steam purging and pressure test note 1), tower steam pressure test for steam slowly to prevent accident of steam speed over the tray big bad; if there is leakage, pressure relief must be treatment, after treatment of the pressure test, until no leakage, and record; withdraw the pressure to continue to steam steam quantity, prevent the formation of a vacuum pumped into the air. 2), through steam purging and pressure test according to the operation of steam through purging and pressure test order, and with the operation and gas charging process. 3) tower, purging and pressure testing, to drain the steam in the tower, and maintain the micro positive pressure at the same time, filling gas, prevent the tower due to the negative pressure pumping bad equipment, gas charging process see gas charging a fine. 4), tower sweeping first to catch the air, then to preheat, preheating tower body after pressure test. 3, tower through purging and pressure test process 1), the absorption tower C301 through purging and pressure test process The absorption tower C301 end to the bottom of the tower top, steam dewatering and emptying. 2) and reabsorber C303 through purging and pressure test process Reabsorber C303 to the bottom of the tower bottom steam, dewatering and emptying tower. 3), the desorption tower through purging and pressure test process C302 to the bottom, steam desorption tower desorption tower C302 (dehydration tower and tower bottom emptying), compressor EA301, compressor outlet air cooler outlet liquid tank V301 (bottom dehydration, tank top emptying). 4), stable tower through purging and pressure test process Stability of tower C304 end to steam, stability