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ÀÌ ½Ã½ºÅÛÀº Water Pump system ÀÔ´Ï´Ù.
ATM Tank, 650m3/h head 47mÀÎ pump, OverflowµÈ water¸¦ ¼øȯ½ÃÅ°´Â Jet Pump, Water Cooler, Agglomerlate catcher·Î ±¸¼ºµÇ¾î ÀÖ½À´Ï´Ù.
Tank ¹× Pump´Â Ground¿¡ ¼³Ä¡µÇ¾î ÀÖÀ¸¸ç, Line»óÀÇ TT/FT/PT°¡ ¼³Ä¡µÇ¾î ÀÖ´Â °÷ÀÌ 3mÁ¤µµ ³ôÀÌ¿¡ ÀÖ´Â Bypass system»óÀÇ High pointÀÔ´Ï´Ù.
Bypass lineÀÌ ¾Æ´Ñ main lineÀº Agglomerlate catcher·Î °¡´Â lineÀÌ¸ç ¿ª½Ã ATM¿îÀüÀÌ°í ¾à 5~6M Á¤µµ ³ôÀÌ¿¡ ¼³Ä¡µÇ¾î ÀÖ½À´Ï´Ù.
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½Ã¿îÀüÀ» À§ÇØ Bypass lineÀ¸·Î °¡´Â LineÀ¸·Î ¿îÀüÀ» ÁøÇàÇß°í, Áï Agglomerlate catcher·Î °¡´Â lineÀÇ valve¹× Cooler·Î °¡´Â lineÀÇ valve´Â block µÇ¾î ÀÖ½À´Ï´Ù. Jet pump·Î °¡´Â lineÀÇ valve´Â open µÇ¾î ÀÖ½À´Ï´Ù.
Pump °¡µ¿½Ã PG´Â 4.6barÁ¤µµ°¡ ÃøÁ¤ÀÌ µÆÀ¸³ª High point¿¡ ÀÖ´Â PT°¡ ÃøÁ¤ÀÌ ¾ÈµÇ´Â ¹®Á¦Á¡ÀÌ »ý°å½À´Ï´Ù.
¶ÇÇÑ Jet pumpµµ ¿øÈ°ÇÏ°Ô ¿îÀüÀÌ µÇÁö ¾Ê¾Æ water°¡ ¹Ù´ÚÀ¸·Î Èê·¯ ³»¸®°í ÀÖ´Â »óȲÀÔ´Ï´Ù.
Hydraulic»ó Line lossµµ ¾ó¸¶µÇÁö ¾Ê°í headµµ ¾ó¸¶µÇÁö ¾Ê¾Æ ¿¹»óÀ¸·Î´Â PG¿Í PT°¡ ¾ó¸¶Â÷ÀÌ°¡ ³ªÁö¾ÊÀ»²¨¶ó »ý°¢ÇÏÁö¸¸ ¾Æ¿¡ ÃøÁ¤ÀÌ µÇÁö ¾Ê½À´Ï´Ù. Å×½ºÆ® °á°ú PT´Â ¹®Á¦°¡ ¾ø½À´Ï´Ù. ´Ù¸¸ Bypass lineÀ» block ½ÃÅ°°í agglomerate cathcher·Î °¡´Â lineÀ» open ½ÃÅ°¸é PT´Â ¾à 1barÁ¤µµ ÃøÁ¤ÀÌ µË´Ï´Ù.
Á¦°¡ »ý°¢Çϱâ·Î´Â µÎ °¡Áö Ãø¸éÀ¸·Î ¹®Á¦Á¡À» Á¢±ÙÇØ ºÃ½À´Ï´Ù.
1. Flow¿¡ ºñÇØ Line size°¡ Å©±â ¶§¹®¿¡ High pointÀÎ PT¼³Ä¡ ÁöÁ¡¿¡¼´Â ¸¸°üÀ¸·Î È帣Áö ¾Ê°í Tank±îÁö Gravity·Î Èê·¯ ¾Ð·Â
ÀÌ ÃøÁ¤ÀÌ ¾ÈµÈ´Ù. Áï PT ÈÄ´Ü¿¡ Restriction Orifice¸¦ ¼³Ä¡Çؼ ¹è°ü»óÀÇ full liquid»óŸ¦ ¸¸µç´Ù. (¿©±â¼ µå´Â Àǹ®Àº Line
sizing½Ã size°¡ ÀÛÀ»¶§´Â ¹®Á¦°¡ µÇÁö¸¸ À¯·®º¸´Ù Ŭ °æ¿ì¿¡µµ °ú¿¬ ¹®Á¦°¡ µÇ´Â°¡?)
2. Jet Pump·Î °¡´Â lineÀÌ ¾îÂ¸é Pump minimum flow lineÀ¸·Î º¸¸é º¸ÅëÀº minimum flow line¿¡ control valve³ª
restriction orifice¸¦ ¼³Ä¡Çؼ pressur balance¸¦ ¸ÂÃß¾î À¯·®À» Á¶ÀýÇϴµ¥ ÀÌ ½Ã½ºÅÛ¿¡´Â pressure balance°¡ ¸ÂÁö¾Ê¾Æ
bypass line¿¡ Pressure°¡ ³²¾ÆÀÖÁö ¾Ê¾Æ PT°¡ ÃøÁ¤ÀÌ ¾ÊµÇÁö ¾Ê³ª ÇÏ°í »ý°¢ÇغýÀ´Ï´Ù.
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