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  Restriction Orifice Type ¼±Á¤ °ü·Ã
  ±Û¾´ÀÌ : °øÁ¤¼³°è³Ê¡¦   °íÀ¯ID : wnrdods     ³¯Â¥ : 18-01-22 09:54     Á¶È¸ : 3170    
¾È³çÇϽʴϱî

¹Ù»Ú½Å ¿ÍÁß¿¡µµ Ç×»ó ¼º½É¼ºÀDz¯ ´äÇØÁּż­ ¸¹Àº µµ¿òÀÌ µÇ¾ú½À´Ï´Ù.
Áø½ÉÀ¸·Î °¨»çÇÕ´Ï´Ù.

1)  RO Type ¼±Á¤ °ü·ÃÇÏ¿©,
Single Restriction Orifice »ç¿ë ½Ã Choked Flow ¹ß»ýÀ¸·Î ÀÎÇÑ ¼ÒÀ½/Áøµ¿ÀÌ ¿¹»óµÇ´Â ºÒ°¡ÇÇÇÑ °æ¿ì,
À̸¦ °¨¼Ò½ÃÅ°±â À§ÇØ Multi-hole Restriction Orifice³ª Multi-stage Restriction Orifice¸¦ °í·ÁÇÏ´Â °ÍÀ¸·Î ¾Ë°í ÀÖ½À´Ï´Ù.
ÀÌ ¶§, Multi-hole RO¿Í Multi-stage RO »çÀÌÀÇ ¶Ñ·ÇÇÑ ±¸ºÐÀÌ ¾ø¾î ´Ù¼Ò È¥¼±ÀÌ ÀÖ½À´Ï´Ù¸¸ ¸íÈ®È÷ µÎ TypeÀ» ±¸ºÐÁö¾î ³õÀº ±ÛÀ» ã±â°¡ ¾î·Á¿ö ¹®Àǵ帳´Ï´Ù...

Ȥ½Ã Multi-hole ¶Ç´Â Multi-stageÀÇ TypeÀ» ¼±ÅÃÇÏ´Â ±âÁØÀÌ ÀÖ´ÂÁö¿ä?

¾Æ´Ï¸é ´Ü¼øÈ÷ VendorÀÇ ÀÚüÀûÀÎ ±âÁØÀ¸·Î °ËÅäÇÏ¿© ´Ù°øÆǸ¸À¸·Î Choked Flow°¡ ÇØ°áµÉ ¼ö ¾ø´Ù°í ÆÇ´ÜµÉ ¶§ Multi-stage Orifice¸¦ Recommand ÇÏ´Â °ÍÀÎÁö¿ä? (Single -> Multi-hole -> Multi-stage ¼øÀ¸·Î °ËÅäÇغ¸´Â °ÍÀÎÁö)


2)  »ó±â Áú¹®°ú º°°³·Î, ¾×»óÀÇ À¯Ã¼°¡ È带 ¶§, Orifice ÈÄ´ÜÀÇ 'Vena Contracta' ÁöÁ¡¿¡¼­ÀÇ ¾Ð·ÂÀ» ±¸ÇÏ´Â ½ÄÀÌ ÀÖ´ÂÁö¿ä? ´Ù¼öÀÇ ¹®Çå¿¡´Â ´Ü¼øÈ÷ Manufacture°¡ Á¦°øÇÑ´Ù°í¸¸ ³ª¿ÍÀִµ¥.. º°µµÀÇ ½ÄÀÌ ¾øÀÌ ½ÇÇèÀûÀÎ ¼öÄ¡ÀÎ °ÍÀÎÁö ±Ã±ÝÇÕ´Ï´Ù.



Áö½ÄÀÌ ºÎÁ·ÇÏ¿© ´Ù¼Ò Á¤Á¦µÇÁö ¾ÊÀº Áú¹® µå¸®´Â Á¡ Á˼ÛÇϸç, ¾çÇØ ºÎŹµå¸³´Ï´Ù.
Ç×»ó °í»ýÇØÁּż­ °¨»çÇϸç, ¿À´Ãµµ ÁÁÀº ÇÏ·ç µÇ½Ã±æ ¹Ù¶ó°Ú½À´Ï´Ù.
°¨»çÇÕ´Ï´Ù.

½ºÅ×Æijë Stefano   18-01-26 17:58
(1) Multiple RO¸¦ »ç¿ëÇÑ´Ù´Â ÀÌÀ¯´Â °£´ÜÇÕ´Ï´Ù.  Áï ÇϳªÀÇ ROÀÇ °æ¿ì Orifice ÈÄ´Ü¿¡¼­ Sonic Velocity¿¡ µµ´ÞÇϱ⶧¹®¿¡ ±×¸®ÇÏ´Â °ÍÀÔ´Ï´Ù.  ´Ù´Ü RO¸¦ »ç¿ëÇÏ¸é °¢´Ü ROÀÇ Ãⱸ¿¡¼­ Sonic Velocity°¡ µÇÁö ¾Êµµ·Ï ÇÒ ¼ö ÀÖ°ÚÁö¿ä.

µû¶ó¼­ ¼±ÅÃÀÇ ±âÁØÀ̶ó¸é ¹Ù·Î Sonic Velocityµµ´Þ À¯¹«°¡ µÉ °ÍÀÔ´Ï´Ù. 

½ÇÁ¦·Î´Â ´Ù´Ü Orifice ´ë½Å ¹Ì·ÎÇü Channel Valve À» »ç¿ëÇÏ´Â °æ¿ì°¡ ¸¹Áö¿ä. 

https://www.google.co.kr/search?newwindow=1&rlz=1C2AOHY_koKR708KR708&dcr=0&tbm=isch&sa=1&ei=9epqWtqPD4Kx8QWm-qqICg&q=%22labyrinth+path+valve%22&oq=%22labyrinth+path+valve%22&gs_l=psy-ab.3...37110.40637.0.40793.8.8.0.0.0.0.116.699.4j3.7.0....0...1c.1.64.psy-ab..1.1.105...0i30k1j0i24k1j0i8i30k1.0.zvtecf5aPf0#imgrc=IHc60Uyga3M8dM:

(2) Á¤¹ÐÇÏ°Ô °è»êÇÏ´Â ¿ø¸®´Â ·ÎÄϱâ¼ú¿¡ ÀÌ¿ëÇÏ´Â CFD(Computationals Fluid Dynamics) °è»ê¼ö½ÄÀ» ÀÌ¿ëÇÏ¿© °è»êÇÏÁö¸¸
´ë·« °è»êÇÏ¸é ¸éÀûºñ·á 0.64Á¤µµÀÇ Á÷°æÀ¸·Î È帣°Ô µÈ´Ù°í º¸°í À̸¦ ÀÌ¿ëÇؼ­ À¯¼ÓÀ» ±¸ÇÏ°í Bennouille ¼ö½ÄÀ¸·Î ¾Ð·ÂÀ» ±¸ÇÏ¸é µÉ °Í °°½À´Ï´Ù.  ÀÌ ÀڷḦ »ç¿ëÇؼ­ Á÷Á¢ °è»êÇØ º¸¼¼¿ä.
https://puhep1.princeton.edu/~kirkmcd/examples/vena_contracta.pdf

Control Valve¶ó¸é º¸Åë ½ÇÁ¦ ½ÇÇèÀ¸·Î ÃøÁ¤ÇÑ µ¥ÀÌÅ͸¦ ÀÌ¿ëÇÏ¿© ÀڷḦ Á¦°øÇÏ´Â °ÍÀ¸·Î º¾´Ï´Ù.  ¼ö½ÄÀ¸·Î °è»êÇß´Ù°í Çصµ ¸ÂÁö ¾ÊÀ» ¼ö ÀÖÀ¸¹Ç·Î Á÷Á¢ ÃøÁ¤Çؼ­ ÀڷḦ ¸¸µé¾ú´Ù°í ºÁ¾ß ÇÕ´Ï´Ù.
   

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