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  Spindle orientation °ü·Ã ¹®ÀÇ
  ±Û¾´ÀÌ : ÇÎÅ©¼ÖÆ®   °íÀ¯ID : oldironold     ³¯Â¥ : 19-07-30 11:37     Á¶È¸ : 2214    
¾È³çÇϽʴϱî.
ÇöÀç ¼öÇà ÁßÀÎ ÇÁ·ÎÁ§Æ®ÀÇ P&IDÀÇ RV in/out isolation valve¿¡ ¾Æ·¡¿Í °°Àº ³ëÆ®»çÇ×ÀÌ Àִµ¥, (to flare / to ATM ¸ðµÎ)
¾î¶² ¸ñÀûÀÎÁö Á¤È®È÷ ÀÌÇØ°¡ µÇÁö ¾Ê½À´Ï´Ù.
For RV and blowdown isolation valves, spindle orientations shall be horizontal or below horizontal for gate valves.
Safety¸¦ °í·ÁÇÑ ¹®±¸¶ó°í ÃßÃøÀº µÇ´Âµ¥¿ä,
Á¤È®È÷ ¹«¾ùÀ» À§ÇÑ ³ëÆ®ÀÎÁö ±×¸®°í Åë»óÀûÀ¸·Î Àû¿ëÇÏ´Â general engineering practiceÀÎÁö?
Á¶¾ðÀ» ºÎŹµå¸³´Ï´Ù.
°¨»çÇÕ´Ï´Ù.

½ºÅ×Æijë Stefano   19-08-01 00:17
¾×»ó¹°ÁúÀÌ ¾ø´Â °æ¿ì¿¡´Â ¹®Á¦°¡ µÇÁö ¾Ê°ÚÁö¸¸ ¾×»ó¹°ÁúÀ̰ųª ÀÀÃà¾×ÀÌ Æ÷Ç﵃ °¡´É¼ºÀÌ ÀÖ´Â À¯Ã¼ÀÇ °æ¿ì ValveÀÇ Å©±â°¡ Å« °æ¿ì SpindleÀÇ ¹æÇâ¿¡ µû¶ó °ü³»¿¡ ¾×ÀÌ ÀÜ·ùÇÒ ¿ì·Á°¡ Àֱ⠶§¹®¿¡ µû¶ó¼­ À̸¦ °í·ÁÇÏ¿© (General Engineering Practice¿¡ ÀÇ°ÅÇÏ¿©)ValveÀÇ ºÎÂø¹æ¹ýÀ» °í·ÁÇØ ´Þ¶ó´Â ÀϹÝÀû ÁÖ¹®À¸·Î º¾´Ï´Ù.
     
ÇÎÅ©¼ÖÆ® oldironold   19-08-01 19:17
´äº¯ °¨»çÇÕ´Ï´Ù.

±×·±µ¥ Valve ±¸Á¶ÀûÀ¸·Î spindleÀÌ horizontal or below horizontalÀÌ¸é ¿ÀÈ÷·Á ±× ºÎºÐÀÌ ÇϳªÀÇ low pocketÀ» Çü¼ºÇÏ¿© °ü³» ¾×ÀÌ ÀÜ·ùÇÒ ¿ì·Á°¡ ÀÖÁö ¾ÊÀ»±î¿ä?
Stefano    19-08-02 09:34
(1) ¹®Àå¿¡¼­ °Å·ÐÇÏ°í ÀÖ´Â Àû¿ë ¹ëºêÀÇ ´ë»óÀÌ Blow Down°ú °°ÀÌ ¾Æ¿¹ ¾×»óÀ» Ãë±ÞÇÏ°í Àְųª RV¿Í °°ÀÌ ±â»óÀÌÁö¸¸ ¾×»ó ÀÜ·ù¹°ÀÌ ´©ÀýµÉ ¼ö ÀÖ´Â °æ¿ì¸¦ À̾߱â ÇÏ°í À־ ÀÜ·ù¾×»óÀÌ Branch LineÀ» µû¶ó Gravitation Flow°¡ Çü¼ºµÉ ¼ö ÀÖµµ·Ï(Drain µÉ ¼ö ÀÖµµ·Ï) ¿¬°á¹è°üÀÇ °¢µµ¸¦ ¼öÆò ȤÀº ¼öÆòÀÌÇÏÀÇ °¢µµ·Î ¿¬°áÇ϶ó´Â °ÍÀÌ ÇϳªÀÌ°í..  (ÀÌ·² °æ¿ì¶ó¸é Valve Spindle ¹æÇâÀ» ¾ð±ÞÇØ¾ß ÇÒ »çÇ×ÀÌ ¾Æ´Ï°í ¹ëºê°¡ ºÎÂøµÉ ¿¬°á PipingÀÇ Branching ¹æ¹ý¿¡ ´ëÇØ ¼³¸íÇß¾î¾ß Çß°í..)

(2) ¶Ç ÀÌ·± ¸ñÀûÀ¸·Î »ç¿ëÇÏ´Â Valve´Â Gate Valve¸¦ »ç¿ëÇ϶ó´Â °ÍÀ» ÇÔ²² ¾ð±ÞÇÑ ³»¿ëÀ¸·Î º¸ÀÔ´Ï´Ù.  µû¶ó¼­ (¿ªÀ¸·Î )´Ù¸¥ ÇüÅÂÀÇ ¹ëºê´Â Spindle ¹æÇâ¿¡ Àü¿¬ °ü·ÃÀÌ ¾ø´Ù´Â ¶æÀ» ³»Æ÷ÇÑ °ÍÀ¸·Î´Â º¸ÀÌÁö ¾Ê°í,

(3) ±â¼úÀûÀ¸·Î ¾ð±ÞÇÒ ³»¿ëÀ» °£Ã߸®¸é... ¿ëµµ¿¡ ¸Â´Â Block ValveÀÇ ¼³Ä¡½Ã (1)  Piping Branch LineÀÇ ¿¬°á ¹æÇâ(¹æ½Ä)À» ¼³¸íÇÏ´Â °ÍÀÌ º¸´Ù Á¤È®ÇÑ ¼³¸íÀÌ°í (2) ¶ÇÇÑ ±× ¸ñÀû¿¡ ¸Â´Â ÇüÅÂÀÇ ¹ëºê ÇüŸ¦ ³ª´©¾î ¼³¸í Çß¾î¾ß Çß´Ù°í º¾´Ï´Ù. 

±â¼úÀû ³»¿ëÀ» ¼³¸íÇÑ ¿£Áö´Ï¾î°¡ ¾ð¾îÇÐÀû, ¼öÇÐ(¿µ¿ª)Àû ¸íÈ®ÇÑ ¹ÙÅÁÀ» ±Ù°Å·Î ¾ð±ÞÇÑ ³»¿ëÀÌ ¾Æ´Ï¾î¼­...¼³¸í ºÎºÐÀ» ¸íÈ®È÷ ÀÌÇØ ÇÒ ¼ö ÀÖÀ¸·Á¸é ÁÖº¯ ¼³¸í ³»¿ëÀ» °í·ÁÇÏ¿© Á¤È®ÇÑ Àǹ̸¦ µÇ»õ°Ü º¼ ÇÊ¿ä°¡ ÀÖ´Ù°í º¾´Ï´Ù.

Ȥ½Ã  µ¿ÀÏ ³»¿ë¿¡ ´ëÇØ ¿µ¾î¸¦ »ç¿ëÇÏ´Â ¿£Áö´Ï¾î¿Í ÀÇ°ßÀ» ±³È¯ÇØ º» °æÇèÀÌ ÀÖ´Ù¸é ¼Ó»çÁ¤(?)À» ¼Ò°³ÇØ ÁÖ¼¼¿ä.
     
ÇÎÅ©¼ÖÆ® oldironold   19-08-07 19:45
¼Ó»çÁ¤À» ¹®ÀÇ °á°ú, gate valveÀÇ spiral wound failure½Ã Á߷¿¡ ÀÇÇØ valve closed°¡ µÇ¼­ relieving path°¡ ¸·È÷´Â ÄÉÀ̽º¸¦ °í·ÁÇÏ¿© gate valveÀÇ spindleÀÇ ¹æÇâÀ» ÃÖ¼Ò ¼öÆò ȤÀº ¼öÆò ÀÌÇÏ·Î ¼³Ä¡Ç϶ó´Â requirement¶ó°í ÇÕ´Ï´Ù.

Âü°í·Î ´Ù¸¥ RV isolation valve¿¡´Â ¾Æ·¡¿Í °°Àº À¯»çÇÑ ³ëÆ®°¡ ÀÖ¾ú½À´Ï´Ù.
"Gate vales used for relief valve isolation inatalled with the stem at or below the horizontal position."
Á¦°¡ ÃÖÃÊ¿¡ Áú¹®Çß´ø ³ëÆ®¿Í À¯»çÇÑ Àǹ̷ΠÆǴܵ˴ϴÙ.

µµ¿ò Áּż­ °¨»çÇÕ´Ï´Ù.
½ºÅ×Æijë Stefano   19-08-08 10:28
API 520 Part 2, 6th ed  6.3 d¿¡ ÀÖ´Â ³»¿ëÀ̱º¿ä.  Gate°¡ ºüÁ® ´ÝÈ÷´Â ÀÏÀÌ ¾øµµ·Ï Ç϶ó´Â ³»¿ëÀ» ¿Å°Ü¿Â ³»¿ëÀÎ °ÍÀε¥ ¸Ç ¸¶Á÷¸· ±¸¹®¿¡ ¼³¸íµÇ¾î Àִµ¥ À̸¦ »©°í ¾ð±ÞÇÏ°í À־... ¼Ó»çÁ¤ ÀÌÇØ°¡ ¾î·Á¿ü¾ú³ª º¾´Ï´Ù.

<d. When gate valves are used, they shall be installed with stems oriented horizontally or, if this is not feasible, the stem shall be oriented downward to a maximum of 45¨¬, from the horizontal to keep the gate from falling off and blocking the flow.>
   

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