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  Downcomer Choke Fooding ¹®ÀÇ
  ±Û¾´ÀÌ : Acee   °íÀ¯ID : sglglg     ³¯Â¥ : 12-12-09 22:23     Á¶È¸ : 5302    
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Downcomer Choke Flooding¿¡ ´ëÇØ ¹®Àǵ帳´Ï´Ù.
Downcomer Choke FloodingÀ̶õ,
Liquid flow rate°¡ Áõ°¡ÇÒ ¶§ Top Downcomer Area size°¡ ÃæºÐÇÏÁö ¾ÊÀ¸¸é downcomer·Î À¯ÀԵǴ aerated liquid velocity°¡ »¡¶óÁö°Ô µÇ°í, ÀÌ ¶§ aerated liquid velocity°¡ ¾î´À ÇѰ踦 ³Ñ¾î°¡°Ô µÇ¸é pressure dropÀÌ ±Þ°ÝÇÏ°Ô Áõ°¡ÇÏ°Ô µÇ¾î, Frothy mixture°¡ ÇÏ´ÜÀ¸·Î À̵¿ÇÒ ¼ö ¾ø°Ô µÇ¸é¼­ »ó´Ü¿¡¼­ ¾×üÀÇ ÃàÀûÀÌ ÀϾ FloodingÀÌ µÈ´Ù.
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¾î¶² ¹®¼­¸¦ º¸¸é ¶Ç aerated liquid velocity °¡ »¡¶óÁüÀ¸·Î ÀÎÇØ downcomer ³»¿¡¼­ vapor disengagement°¡ Á¦´ë·Î ÀϾÁö ¸øÇؼ­ floodingÀÌ ¹ß»ýÇÑ´Ù°í ½áÀÖ½À´Ï´Ù.
increased aerated liquid velocityÀÌ ¿øÀÎÀÎ °Ç ¸Â´Âµ¥, ±× °úÁ¤¿¡¼­ Pressure drop¿¡ ÀÇÇÑ floodingÀ¸·Î ºÁ¾ß ÇÏ´ÂÁö ¾Æ´Ô liquid velocity ¼Óµµ°¡ ³Ê¹« »¡¶ó vapor°¡ Á¦´ë·Î ºÐ¸® µÇÁö ¸øÇØ froth°¡ ³ô¾ÆÁ®¼­ floodingÀÌ µÇ´Â°ÇÁö Á» Çò°¥¸³´Ï´Ù.
¾Æ´Ï¸é, aerated liquid velocity°¡ Áõ°¡ÇÔ¿¡ µû¶ó vapor°¡ Á¦´ë·Î ºÐ¸®µÇÁö ¸øÇØ froth°¡ ³ô¾ÆÁö´Ù°¡, aerated liquid velocity °¡ Á¡Á¡ »¡¶óÁ® ¾î´À ÇÑ°èÁ¡À» ³Ñ¾î°¡¸é pressure dropÀÌ Ä¿Á®¼­ floodingÀÌ ¹ß»ý. Áï µÎ°³°¡ º¹ÇÕÀûÀ¸·Î ÀÛ¿ëÇÏ´Â °ÍÀ¸·Î º¸¸é µÇ´Â°É±î¿ä?
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½ºÅ×Æijë Stefano   12-12-13 17:15
Downcomer¿¡ ½×¿© ÀÖ´Â ¾×Àº ¾Æ·§ÃþÀ¸·ÎºÎÅÍ Clear Liquid, Bubble-dispersed Liquid, Foam ¼øÀ¸·Î ½×¿©ÀְԵǴµ¥ ÀÌ´Â Liquid Head¿Í Differential Head°¡ Balance¸¦ ÀÌ·ç¸ç ´ëü·Î ÀÏÁ¤ÇÏ°Ô À¯ÁöµË´Ï´Ù. 

LiquidÀÇ ¼Óµµ°¡ ºü¸¥ °æ¿ì Down-comerºÎºÐ¿¡¼­ÀÇ ¾×ü·ù½Ã°£ÀÌ ºÎÁ·ÇÏ¿© ±â-¾×ÀÇ ºÐ¸®°¡ ´úµÇ¾î ¾×¸éÀÌ ¿Ã¶ó°¡°Ô µÇ´Âµ¥ Foam TopÀÇ ³ôÀÌ°¡ Tray Spacing³ôÀ̸¦ ÃÊ°úÇÏ°Ô µÇ¸é Áõ±â¿Í ÇÔ²² ¾×ÀûÀ» Æ÷ÇÔÇÑ FoamÀÌ »ó´ÜÀ¸·Î ¿Ã¶ó°¡´Â Çö»óÀÌ ³ªÅ¸³ª°Ô µË´Ï´Ù.  Foam, FrothÀÇ ³ôÀÌ°¡ ¿Ã¶ó°¡ FloodingÀÌ ÀϾ¸é ColumnÀÇ Pressure DropÀÌ ±Þ»ó½ÂÇÏ°Ô µË´Ï´Ù. 

°á·ÐÀûÀ¸·Î ´Ü°£ÀÇ Â÷¾ÐÀº Down-comerÀÇ ¾×¸éÀ» ¾à°£»ó½Â½ÃÅ°´Â ¿ªÇÒÀ» ÇÏÁö¸¸ Column ¿îÀüÁß Pressure DropÀÇ »ó½ÂÇö»óÀº Flooding¿¡ ÀÇÇØ °á°úÀûÀ¸·Î ³ªÅ¸³ª´Â ÀÏÀÌÁö Pressure DropÀÌ ¸ÕÀú ¿øÀÎÀÌ µÇ´Â °ÍÀº ¾Æ´Õ´Ï´Ù.
     
Acee sglglg   12-12-15 10:55
¸íÄèÇÑ ¼³¸í Á¤¸» °¨»çµå¸³´Ï´Ù.
°á±¹ DC choke floodingÀº downcomer¸¦ ³Ñ¾î°¡´Â aerated liquidÀÇ velocity°¡ »¡¶óÁö¸é¼­, ±â¾×ºÐ¸®°¡ Á¦´ë·Î ÀϾÁö ¸øÇØ downcomer ³»ÀÇ ¾×¸éÀÌ ³ô¾ÆÁ®¼­ floodingÀÌ ¹ß»ýÇÏ°Ô µÇ´Â °ÍÀ̱º¿ä. ±×·ÎÀÎÇØ pressure dropÀÌ ±Þ°ÝÇÏ°Ô »ó½ÂÇÏ´Â Çö»óÀÌ ¹ß»ýÇÏ´Â °ÍÀ̱¸¿ä
ÀÌÁ¦ ÀÌÇØ°¡ 100%µÇ³×¿ä.  °¨»çÇÕ´Ï´Ù!!
   

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