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  VFD ±¸µ¿ Pump ÈÄ´ÜÀÇ Design Pressure ¼³Á¤
  ±Û¾´ÀÌ : iminproces¡¦   °íÀ¯ID : iminprocess     ³¯Â¥ : 16-04-27 09:40     Á¶È¸ : 4299    
¾È³çÇϼ¼¿ä. PJT¸¦ ÁøÇàÇÏ´Â Áß ±Ã±ÝÇÑ »çÇ×ÀÌ ÀÖ¾î Áú¹® ¿Ã¸³´Ï´Ù.
VFD ±¸µ¿ Centrifugal Pump ÈÄ´ÜÀÇ °æ¿ì Design Pressure´Â ¾î¶»°Ô Á¤ÇØÁö°Ô µÇ³ª¿ä??
ÀÏ¹Ý Fixed Motor Centrifugal PumpÀÇ °æ¿ì¿¡´Â ¾Æ·¡¿Í °°Àº ½ÄÀ¸·Î Á¤ÇÕ´Ï´Ù.
Design Pressure = Max.Suction Pressure + Pump Shut-off Pressure
VFD ±¸µ¿ Centrifugal PumpÀÇ °æ¿ì¿¡´Â Performance Curve°¡ ¿©·¯°³Àε¥
Á¦ °³ÀÎÀûÀÎ »ý°¢À¸·Î´Â ±× Áß¿¡¼­ °øÁ¤¿¡¼­ ¿îÀüµÇ´Â Rated Flow RateÀÏ ¶§ÀÇ Performace Curve·Î ÀÏ¹Ý Fixed Motor Centrifugal Pump ÈÄ´Ü Design Pressure¸¦ ±¸ÇÏ´Â °Íó·³ ±¸ÇÏ¸é µÇ´Â °ÍÀÎÁö
 
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½ºÅ×Æijë Stefano   16-04-27 12:48
VFD ±¸µ¿ÀÌ ¹«¾ùÀÎÁö Ç®¾î¼­ Áú¹®ÇØ ÁÖ¼¼¿ä.  ÇÊÀÚ°¡ °ÅÀÇ µé¾îº¸Áö ¸øÇÑ ¿ë¾îÀÔ´Ï´Ù.
     
iminproces¡¦ iminprocess   16-04-27 14:25
VFD ±¸µ¿Àº Variable Frequency DriveÀÇ ¾àÀÚÀÔ´Ï´Ù.
½ºÅ×Æijë Stefano   16-04-27 16:00
(0) PJTµµ ¸¶Âù°¡ÁöÀε¥.. óÀ½ ³ª¿À´Â ¾àÀÚ´Â Ç×»ó ¹Ýµå½Ã Ç®¾î ´Þ¶ó´Â ÁÖ¹®ÀÔ´Ï´Ù.  ¼öµµ¾øÀÌ ¹Ýº¹Çؼ­ ¿ä±¸ÇØ¿À°í ÀÖ´Â »çÇ×ÀÔ´Ï´Ù.   

(1) PumpÀÇ ¹èÃâÀ¯·®Àº ȸÀü¼ö¿¡ ºñ·ÊÇÏ°í ¹èÃâ¾Ð·ÂÀº ȸÀü¼öÀÇ Á¦°ö¿¡ ºñ·ÊÇÏ°í, ÆßÇÁµ¿·ÂÀº ȸÀü¼öÀÇ ¼¼Á¦°ö¿¡ ºñ·ÊÇÑ´Ù´Â ÆßÇÁÀÇ »ó»ç¹ýÄ¢(Affinity Law)¿¡ ÀÇÇØ ¿ø½ÉÆßÇÁÀÇ ¼º´ÉÀÌ Á¤ÇØÁö´Âµ¥..

¿ì¼± PumpÀÇ Rated Flow¿Í Head°¡ Á¤ÇØÁ®¾ß Çϴµ¥ ÀÌ´Â Pump MotorÀÇ Power°¡ °ßµô ¼ö ÀÖ´Â(°¡µ¿ÇÒ ¼ö ÀÖ´Â) ¿µ¿ª¿¡¼­ÀÇ È¸Àü¼ö¿¡¼­ÀÇ À¯·®°ú ¹èÃâ¾Ð·ÂÀ» Á¤ÇÏ´Â °ÍÀÌ ¸ÕÀú°í  ±×¸®°í ³ª¼­ ±× ȸÀü¼ö¿¡¼­ÀÇ Shut-off Pressure¸¦ °í·ÁÇÑ ¹èÃâ¾Ð·ÂÀ» °í·ÁÇÏ¿© Á¤ÇÏ¸é µÉ °ÍÀÔ´Ï´Ù. 

(2) Áú¹®¿¡¼­ ¾ð±ÞÇÑ °Íó·³ Rated Flow¿¡¼­ÀÇ ¼º´É°î¼±»óÀÇ ¹èÃâ¾ÐÀº ¿îÀü¾Ð·ÂÀÌ µÇ°í ±× ¼º´É°î¼±ÀÇ RPM¿¡¼­ÀÇ Shut-off Pressure ¿Í Suction ¾Ð·ÂÀ» ´õÇÑ°ªÀÌ ÃÖ´ë ¹èÃâ¾Ð·ÂÀÌ µÇ°í À̸¦  Design Pressure·Î ÃëÇÏ¸é µÇ°ÚÁö¿ä. 

ÁÖÀÇÇÒ »çÇ×Àº  Inverter¸¦ »ç¿ëÇÑ °¡º¯¼Ó¸ðÅÍÀÇ °æ¿ì ÀÏ¹Ý Á¤¼Ó ¸ðÅÍÀÇ °æ¿ì¿¡ ºñÇÏ¿© ¸ðÅÍ ¿ë·®¿¡ ¿©À¯°¡ À־ Rated Flow³ª Maximum Head (ȤÀº Power)°¡ Á¤¼Ó¸ðÅÍ ¼±Á¤½Ãº¸´Ù ³ô°Ô ¼±Á¤µÉ ¼ö Àִµ¥ ¸¸ÀÏ ±×·¸´Ù¸é ±× ¼º´É°î¼±¿¡ ÇØ´çÇÏ´Â ChartÀÇ Shut-off Pressure¸¦ ã¾Æ Àû¿ëÇØ¾ß ÇÒ °ÍÀÔ´Ï´Ù.
   

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