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  API 521 Abnormal Process Heat or Vapor Input ÆÄÆ®¿¡¼­..
  ±Û¾´ÀÌ : BK   °íÀ¯ID : throne678     ³¯Â¥ : 14-05-27 15:51     Á¶È¸ : 3777    
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Abnormal Process Heat Input °ü·Ã ³»¿ëÁß¿¡
 
if limit stops are installed on control valves, the wide-open capacity, rather than the capacity at the stop setting, should normally be used. however, if a mechanical stop is installed and is adequately documented, use of the limited capacity can be appropriate.
 
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limit stopÀ̶ó´Â °Í°ú wide-open capacity¿¡ ´ëÇÑ °³³äÀ» ¾Ë·ÁÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù.
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½ºÅ×Æijë Stefano   14-05-27 19:11
(0) ¿µ¹®ÀÇ Ã¹ÀÚ´Â ´ë¹®ÀÚ·Î ½áÁÖ¼¼¿ä.  Shift Key´Â Àå½Ä¿ëÀÌ ¾Æ´Õ´Ï´Ù. 

(1) ÀÎ¿ë ¹®ÀåÀÇ Ã¹ If¸¦ Even if·Î °íÃľ²¸é ¶æÀÌ º¸´Ù ¸íÈ®ÇØ Áý´Ï´Ù.     

(2) ¿êÁ¡Àº (Air Failure ȤÀº Power Failure ¿Í °°Àº Control Valve Failure½Ã) "±â°è½Ä Limiting Device"°¡ ´Þ·ÁÀÖ°í °ü¸®°¡ Àߵǰí ÀÖ´Â °æ¿ì¶ó¸é ±× Limiting Device¿¡ ÀÇÇØ ¿­¸®´Â Control ValveÀÇ À¯·®À» ±âÁØÀ¸·Î Çصµ ÁÁÀ¸³ª  (±â°è½ÄÀÌ ¾Æ´Ñ ´Ù¸¥ Àü±â½Ä, °ø±â½Ä, ÀüÀÚ½Ä µî) ´Ù¸¥ Limiting Device¸¦ »ç¿ëÇÏ´Â °æ¿ì¶ó¸é ("½Å·ÚÇÒ ¼ö ¾øÀ¸¹Ç·Î") ±× ¹ëºêÀÇ À¯·®Àº ¿ÏÀüÈ÷ ¿­¸° »óÅ¿¡¼­ÀÇ °ªÀ» Åë»óÀûÀ¸·Î ÃëÇ϶ó´Â°ÍÀÔ´Ï´Ù.
     
BK throne678   14-05-28 12:26
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