ÀÚµ¿·Î±×ÀÎ
ÄÁÅÙÃ÷ | contents
ÀϹݰԽÃÆÇ
Q&A°Ô½ÃÆÇ
°øÇÐ S/W
½ºÅ͵ð | study
´ÜÀ§È¯»ê
³óµµ°è»ê
ÀϹÝÈ­ÇÐ
È­°øÀϹÝ
È­°ø½Ç¹«

   
  ¿­±³È¯±â Cooling Water À¯¼Ó °ü·Ã ¹®ÀÇ
  ±Û¾´ÀÌ : ¹è°æȯ   °íÀ¯ID : grape808     ³¯Â¥ : 17-10-11 14:33     Á¶È¸ : 5909    
¾È³çÇϼ¼¿ä.
 
¼®À¯È­ÇÐ ¾÷°è¿¡ Á¾»çÇÏ´Â ¿£Áö´Ï¾î ÀÔ´Ï´Ù.
Cooling Water È¿À²È­ °úÁ¦¸¦ ÁøÇà Áß ¹®ÀÇ »çÇ×ÀÌ ÀÖ¾î ¾Æ·¡¿Í °°ÀÌ ¹®ÀÇ µå¸³´Ï´Ù.
 
Shell&Tube Type ¿­±³È¯±â¿¡¼­ Tube Side·Î ³Ã°¢¼ö, °øÁ¤À¯Ã¼´Â Shell SIde·Î Service µÉ °æ¿ì Tube¿¡¼­ÀÇ CW(³Ã°¢¼ö) Velocity¿¡ ´ëÇÑ Guide °¡ ÀÖ´ÂÁö ¹®ÀÇ µå¸³´Ï´Ù.
 
Kurita-Cooling Water Treatment  HandBook¿¡¼­´Â Tube ºÎ½Ä°ü·Ã PO4(Polyphosphate) Base¿¡¼­ CW À¯¼ÓÀÌ 0.5m/s ÀÌ»óÀÏ °æ¿ì Corrosion Rate¿¡´Â ¹®Á¦°¡ ¾ø´Ù°í Çϴµ¥, ¿­±³È¯±â ¿­Àü´Þ È¿À²¿¡¼­´Â 0.5m/s·Î µÉ °æ¿ì Ãþ·ù°¡ µÇ¾î Heat Duty°¡ ¶³¾îÁú°Í °°½À´Ï´Ù. °ü·ÃÇÏ¿© ¿­±³È¯±â CW Tube Side ¼³°è ½Ã Guide °¡ ÀÖÀ¸¸é ¼Ò°³ ¿äû µå¸³´Ï´Ù.
 
 
¼±¹è´ÔÀÇ °í°ß ºÎŹ µå¸³´Ï´Ù.
 
°¨»çÇÕ´Ï´Ù.

¼Ò±ÝÀïÀÌ hotchkiss   17-10-11 17:06
tube side serviceÀÎ °æ¿ì ÇØ´ç À¯Ã¼ÀÇ erosion velocity ÀÌÇÏ, foulingÀÌ ½ÉÇØÁö´Â ÃÖÀúÀ¯¼Ó ÀÌ»óÀÌ¸é µË´Ï´Ù.
¸»¾¸ÇϽŴë·Î À¯¼ÓÀÌ Áõ°¡Çϸé overall U °ª ¶ÇÇÑ Áõ°¡ÇØ ¿­±³È¯¿¡ ÇÊ¿äÇÑ ¿­Àü´Þ¸éÀûÀÌ ÀÛ¾ÆÁö¹Ç·Î
¿­±³È¯±âÀÇ tube side pressure dropÀÌ allowable pressure drop¿¡ ±ÙÁ¢Çϵµ·Ï
À¯¼ÓÀ» ³ôÀÌ´Â°Ô ½ÇÁúÀûÀÌ°í °æÁ¦ÀûÀÎ ¿­±³È¯±â ¼³°è¹æ¹ýÀÔ´Ï´Ù.
     
¹è°æȯ grape808   17-10-12 08:39
´äº¯ °¨»ç µå¸³´Ï´Ù.
½ºÅ×Æijë Stefano   17-10-11 18:14
(1) ¿­±³È¯±â Tube³» ³Ã°¢¼öÀÇ À¯¼ÓÀº ÀçÁú¿¡ µû¶ó Erosion/Corrosion ¹æÁö¸¦ À§ÇÑ ÃÖ´ë À¯¼ÓÀÌ ´ë·« Á¤ÇØÁ® ÀÖ½À´Ï´Ù.  ¶ÇÇÑ ³Ê¹« À¯·®ÀÌ ³·À¸¸é Fouling Çö»óÀÌ µÎµå·¯ Áú »Ó¸¸ ¾Æ´Ï¶ó ¿­Àü´Þ°è¼öµµ Å©°Ô ¶³¾îÁö±â ¶§¹®¿¡ ÁÁÁö ¾Ê½À´Ï´Ù.  Data Ãâ󸶴٠¾à°¢¾¿ Â÷ÀÌ°¡ ÀÖÁö¸¸ ´ëü·Î ´ÙÀ½°ú °°½À´Ï´Ù. 

*ÃÖ´ë(±ÇÀå) ±ÇÀåÀ¯¼Ó  *Maximum Cooling Water Velocity(Recommended Velocity) for Heat Exchangers
Carbon Steel    2.7 m/s (0.5~2.5 m/s)
Stainless Steel  3.3 m/s (0.6~3.0 m/s)
Titanium          4.3 m/s (0.8~4.3 m/s) 

Âü°í: http://www.deppmann.com/blog/monday-morning-minutes/maximum-minimum-velocity-heat-exchangers-part-1/

(2) Carbon Steel ³Ã°¢¼ö°üÀ̶ó¸é À¯¼ÓÀÌ ³Ê¹« Å©¸é Â÷¾ÐÀÌ Å©°Ô Áõ°¡Çؼ­ Á¦ÇѵǴ °æ¿ì°¡ ¸¹°í  ³Ê¹« ³·À¸¸é Àü¿­°è¼ö°¡ Å©°Ô ¶³¾îÁ®  ´ë·« 0.6~2.1 m/s (2~7 ft/s) Á¤µµ ¹üÀ§¿¡¼­ ¼³°èÇÏ¸é ¹«¸®°¡ ¾ø½À´Ï´Ù.
¹è°æȯ grape808   17-10-12 08:45
´äº¯ °¨»ç ÇÕ´Ï´Ù.

ÃÖ´ë ±ÇÀå À¯¼ÓÀº ¼±¹è´Ô²¨¼­ °É¾îÁֽŠ¸µÅ©¸¦ ÅëÇØ È®ÀÎÀ» Çß½À´Ï´Ù.
°ü·ÃÇÏ¿© °¢ ÀçÁú º° Tube Velocity ¿¡ ´ëÇÑ ÀÚ·á´Â Google¸¦ ÅëÇØ °Ë»öÇÏ¿©µµ ãÁö¸¦ ¸øÇØ Data Ãâó¸¦ ¹®ÀÇ µå¸³´Ï´Ù.

°¨»çÇÕ´Ï´Ù.
½ºÅ×Æijë Stefano   17-10-12 19:03
1) ÇÊÀÚÀÇ °æÇèÀ¸·Î´Â ¹®Çå¿¡¼­ Á¦½ÃÇÏ´Â ÃÖ´ë°ªÀ¸·Î Á¦ÇѵǴ °Íº¸´Ù´Â ÁÖ·Î Çã¿ë¾Ð·ÂÂ÷·Î Á¦ÇѵǴ °æ¿ì°¡ ¸¹¾Æ½À´Ï´Ù.  Âü°íÇϽðí..  ¿­±³È¯±â ÇÚµåºÏ µî¿¡¼­ ã¾Æº¼ ¼ö ÀÖ½À´Ï´Ù.  ÀÏ¹Ý Pipe¿¡¼­´Â °ü°æÀÌ ´Ã¾î³ª¸é °üº®¿¡¼­ ¸Ö¾îÁ® Çã¿ëÀ¯¼Óµµ ´Ã¾î³ª°ÔµÇ¹Ç·Î ¿­±³È¯±â Tube¿Í´Â ±¸º°ÇØ¾ß ÇÕ´Ï´Ù.

2) CW ¿Âµµ°¡ ³ô¾ÆÁö¸é Çã¿ë À¯¼ÓÀÌ ÇÔ²² ³·¾ÆÁý´Ï´Ù.  ASME µî¿¡¼­ Ãâó°¡ ÀÖ¾ú´ø °ÍÀ¸·Î º¾´Ï´Ù¤¿.  Çѹø ã¾Æº¸µµ·Ï Çϼ¼¿ä.

3) ¿øõÀ» Àß ¸ô¶óµµ ÀÌ°÷¿¡¼­µµ ¾ð±ÞµÈ ÀڷḦ ã¾Æº¼ ¼ö ÀÖ´Â °Í °°½À´Ï´Ù. 
https://www.slideshare.net/GerardBHawkins/shell-and-tube-heat-exchangers-using-cooling-water

http://www.lytron.com/Tools-and-Technical-Reference/Application-Notes/Erosion-Corrosion-in-Cooling-Systems
   

Copyright 1999.07.10-Now ChemEng.co.kr & 3D System Engineering. (mail : ykjang@naver.com, call 010-4456-8090)