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Àú¹ø¿¡ Vapor-Liquid Separator¿¡ ÀÌ¾î¼ ¶Ç ¿©Âã½À´Ï´Ù.^^
Vapor-Liquid-Liquid Separator SizingÀº °øºÎÇÏ¸é¼ »ý°¢Çϱ⿡ ¿äÁ¡Àº ´ÙÀ½°ú °°´Ù°í »ý°¢ÇÕ´Ï´Ù.
(1) Vapor-LiquidÀÇ Min. gas flow area¸¦ ±¸ÇÏ¿© Min.ID of Separator(mm)¸¦ ±¸ÇÑ´Ù.
(2) Liquid-LiquidÀÇ Min. liquid flow area¸¦ ±¸ÇÏ¿© Min. ID of Separator(mm)¸¦ ±¸ÇÑ´Ù.
(3) (1)°ú (2)°ªÁß Å«°ªÀ» ¼±Á¤ÇÏ¿© Vessel sizing (L/D=3~5)ÇÑ´Ù.
ÀÌ¿Í °°ÀÌ °³³äÀ» Àâ¾Ò½À´Ï´Ù.
Horizontal typeÀÏ °æ¿ì
(1)Àº Min. gas flow area¸¦ ±¸ÇÏ¿© VaporÀÇ VolumeÀ» 20%·Î °¡Á¤ÇÏ°í °è»êÇÕ´Ï´Ù.
Min. gas flow area/0.2 = Horizontal min. gas flow area ---> Min.ID of Separator(mm)¸¦ ±¸ÇÕ´Ï´Ù.
(2)ÀÇ Setting timeÀ» ±¸ÇÏ´Â ½ÄÀ» º¸¾Ò´Âµ¥ Å©°Ô 3°¡Áö Á¤µµ¸¦ º¸¾Ò½À´Ï´Ù.
ù°, V = Ks(¥ñh-¥ñl)¥ì --------(a)
V = Settling velocity(inch/min)
Ks= Constant
¥ñh= Density of heavy(lb/ft3)
¥ñl= Density of light(lb/ft3)
¥ì = Viscosity of continuous phase(cP)
µÑ°, V = (g/18/¥ì)(¥ñh-¥ñl)D^2 --------(b)
V = Vertical velocity(cm/s)
g = 981(cm/s2)
¥ñh= Density of heavy(g/cm3)
¥ñl= Density of light(g/cm3)
¥ì = Viscosity of continuous phase(Poise)
¼Â°, V = 0.0241(¥ñh-¥ñl)/¥ì --------(c)
V = Vertical velocity(ft/min)
¥ñh= Specific gravity of heavy
¥ñl= Specific gravity of light
¥ì = Viscosity of continuous phase(Poise)
ÀÌÁß (a)½Ä¿¡ Á¦ÇÑ°ªÀÌ Àִµ¥ Max. settling velocity°¡ 10inch/minÃÊ°úÇÏ¸é ¾ÈµÈ´Ù´Â °ÍÀÔ´Ï´Ù.
±×·±µ¥ °°Àº Design conditionÀ¸·Î ¼¼°¡Áö½ÄÀ¸·Î °è»êÇØ º¸¾Ò½À´Ï´Ù.
±×·±µ¥ (a)½ÄÀ» Á¦¿ÜÇÑ ³ª¸ÓÁö½ÄµéÀº °ªÀÌ (a)½ÄÀÇ Á¦ÇÑ°ª 10inch/minÀ» Èǽ ³Ñ¾ú½À´Ï´Ù.(18inch/min)
¿Ö ÀÌ·±Çö»óÀÌ ÀϾ´ÂÁö ±Ã±ÝÇÕ´Ï´Ù.
±×¸®°í Liquid-LiquidÀÇ Min. liquid flow area¿¡¼µµ Min. gas flow area¸¦ ±¸ÇÏ¿© VaporÀÇ VolumeÀ» 20%·Î °¡Á¤ÇÑ°Í°ú °°ÀÌ ºñ½ÁÇÑ °¡Á¤Á¶°ÇÀÌ ÀÖ´ÂÁö ±Ã±ÝÇÕ´Ï´Ù.
Liquid-Liquid Separator Sizing À» API 421À» Âü°íÇÏ´ø Áß Horizeontal velocity(ft/min) = 15{0.0241(¥ñh-¥ñl)/¥ì} ¡Â 3tf/min À̶ó´Â Ç׸ñÀÌ Àִµ¥ Horizeontal velocityÀÇ Á¤ÀÇ°¡ ¹«¾ùÀÌÁö ÀÌÇØ°¡ °¡Áö¾Ê½À´Ï´Ù.
(API 421ÀÇ ±¸¹®: The design mean horizontal velocity is defined by the smaller of the values for Vh.)
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