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[2021] [UAE] DEWA, ´ã¼öÈ­½Ã¼³ ÆßÇÁ¡¤¹ëºê º£¾î¸µÀ» Å丣µ· Á¦Ç°À¸·Î ±³Ã¼
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2021.07.13 Á¶È¸¼ö 864
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[UAE] DEWA, ´ã¼öÈ­½Ã¼³ ÆßÇÁ¡¤¹ëºê º£¾î¸µÀ» Å丣µ· Á¦Ç°À¸·Î ±³Ã¼

 

 

DEWA(µÎ¹ÙÀÌ Àü±â¼öÀÚ¿øºÎ, Dubai Electricity & Water Authority)´Â µÎ¹ÙÀÌ Àü¿ªÀÇ ½Ã¼³¿¡¼­ ±âÁ¸ º£¾î¸µÀ» Å丣µ·(Thordon) Á¦Ç°À¸·Î ü°èÀûÀ¸·Î ±³Ã¼ÇÏ°í ÀÖ´Ù. ù ¹ø° º£¾î¸µ °³Á¶´Â 25³â Àü¿¡ ÀÌ·ç¾îÁ³´Ù.


DEWA´Â UAE(¾Æ¶ø¿¡¹Ì¸®Æ®) Àü¿ªÀÇ ´ã¼öÈ­ Ç÷£Æ®¿¡ ij³ª´Ù ¾÷üÀÇ ¼±±¸ÀûÀÎ ±â¼úÀ» ¼³Ä¡ÇÑ ÀÌÈÄ »ê¾÷¿ë ÆßÇÁ º£¾î¸µÀ» ±×¸®½º(grease)°¡ ¾ø´Â Å丣µ· ¿öÅÍ À±È° º£¾î¸µ ¼Ö·ç¼Ç(Thordon water lubricated bearing solution)À¸·Î ±³Ã¼ÇÏ´Â µ¥ ÇÑ °ÉÀ½ ´õ ´Ù°¡¼¹´Ù.


¿ÃÇØ 6¿ù±îÁö Å丣µ· º£¾î¸µ(Thordon Bearing)ÀÇ µÎ¹ÙÀÌ ±â¹Ý À¯Åë¾÷üÀÎ OPI(Ocean Power International)´Â ¹öÅÍÇöóÀÌ ¹ëºê(butterfly valve) 20°³¿Í ºê¶óÀÎ Àç¼øȯ ÆßÇÁ(brine recirculation and vertical pump) 7°³¿¡ ¼³Ä¡ÇÒ Å丣Çöó½º-ºí·ç(ThorPlas-Blue)¿Í SXL º£¾î¸µÀ» °ø±ÞÇß´Ù.


DEWA´Â ²Ï ¿À·§µ¿¾È µÎ¹ÙÀÌ Àü¿ªÀÇ ½Ã¼³¿¡¼­ Å丣µ·(Thordon) Á¦Ç°À¸·Î ±âÁ¸ º£¾î¸µÀ» ü°èÀûÀ¸·Î ´ëüÇØ ¿Ô´Ù. ù ¹ø° º£¾î¸µ °³Á¶´Â 25³âµµ ´õ Àü¿¡ ¼öÇàµÇ¾ú´Ù.


OPIÀÇ ¶óÇǵå Äí·¹½Ã(Rafid Qureshi) »ó¹«´Â "¿ì¸®´Â DEWA°¡ ¿ø·¡ÀÇ ¹æÇâ°ú °ü·ÃÇÏ¿© °Þ°í ÀÖ´Â ¹®Á¦¿¡ ´ëÇØ µéÀº ÈÄ Å丣Çöó½º-ºí·ç(ThorPlas-Blue)¸¦ Æ÷ÇÔÇÑ ¼Ö·ç¼ÇÀ» Á¦¾ÈÇß´Ù. ÇÏÁß °è»êÀ» È®ÀÎÇÏ°í ÀÛµ¿ ¾Ð·ÂÀÌ º£¾î¸µ Àç·áÀÇ 45MPa(6527psi) °øÂ÷¸¦ ÃÊ°úÇÏÁö ¾Ê´ÂÁö È®ÀÎÇÑ ÈÄ Å丣µ· ºÎ½Ì(Thordon bushing)À» °¡°øÇÏ¿© ÀåÂøÇß´Ù"¶ó°í ¸»Çß´Ù.


¶óÇǵå Äí·¹½Ã(Rafid Qureshi) »ó¹«´Â "ù ¼³Ä¡ ÀÌÈÄ µÎ¹ÙÀÌ Àü¿ªÀÇ ¿©·¯ ¹ßÀü ¹× ´ã¼öÈ­ Ç÷£Æ®ÀÇ ÆßÇÁ¿Í ¹ëºê º£¾î¸µÀ» ±³Ã¼Çß´Ù"¶ó°í ¹àÇû´Ù.


¿¹¸¦ µé¾î OPI¿Í Å丣µ·Àº 2019³â OPI ¿öÅ©¼¥¿¡¼­ ¼¶À¯ ¶óÀÌ´× ±Ý¼Ó º£¾î¸µÀÌ ¸¶¸ðµÈ ÈÄ Å»±¤¹°È­ ÇÇÆ® ÆßÇÁ(pit pump)¸¦ À§ÇÑ º£¾î¸µ °³Á¶¸¦ ¿Ï·áÇß´Ù. ±×¸®°í 2020³â 5¿ù¿¡´Â OPI ¿öÅ©¼¥¿¡¼­ 20°³ÀÇ ¼öÁ÷ ÆßÇÁ¿Í 6°³ÀÇ ºê¶óÀÎ Àç¼øȯ ÆßÇÁ Â÷´Ü ¹ëºê¸¦ Å丣µ· Æú¸®¸Ó Àç·á·Î °³Á¶Çß´Ù.


¶óÇǵå Äí·¹½Ã(Rafid Qureshi) »ó¹«´Â "¿ø·¡ ¼öÁ÷ ÆßÇÁ¿¡ ¼³Ä¡µÈ ûµ¿ ºÎ½ÌÀÌ ¸¶¸ðµÇ¾î 6¡­8°³¿ù¸¶´Ù °íÀåÀÌ ÀÚÁÖ ¹ß»ýÇß´Ù"¶ó¸é¼­ "ºÒÇàÇÏ°Ôµµ ºÎ½Ì ¿À·ù·Î ÀÎÇØ ¿©·¯ ±¸¼º ¿ä¼Ò°¡ °íÀåÀÌ ³ª¼­ DEWA´Â ´õ ¿À·¡ Áö¼ÓµÇ°í ´õ ¾ÈÁ¤ÀûÀÎ ¼Ö·ç¼ÇÀ» ã¾Æ¾ß Çß´Ù"¶ó°í ¸»Çß´Ù.


¶óÇǵå Äí·¹½Ã(Rafid Qureshi) »ó¹«´Â À̾î "ÆßÇÁÀÇ ¸Åü°¡ ÇؼöÀ̱⠶§¹®¿¡ »õ º£¾î¸µÀº ³»½Ä¼ºÀÌ ÀÖ¾î¾ß Çß°í ÃÖ´ë 80¡É(176¢µ)ÀÇ ³ôÀº ÀÛµ¿ ¼Óµµ¿Í ¿Âµµ¸¦ °ßµô ¼ö ÀÖ¾î¾ß Çß´Ù. ThorPlas-Blue´Â ÀÌ·¯ÇÑ Á¾·ùÀÇ ¾ÖÇø®ÄÉÀ̼ǿ¡ ÀÌ»óÀûÀÎ º£¾î¸µ µî±ÞÀ¸·Î °£ÁֵǾú´Ù"¶ó°í µ¡ºÙ¿´´Ù.


"DEWA°¡  Å丣Çöó½º-ºí·ç(ThorPlas-Blue) º£¾î¸µÀ¸·Î ¼öÁ÷ ÆßÇÁ¸¦ ÀÛµ¿Çϱ⠽ÃÀÛÇÑ ÀÌÈÄ ´Ù¿îŸÀÓÀÌ ¹ß»ýÇÏÁö ¾Ê°Å³ª Áøµ¿ÀÌ Áõ°¡ÇÏÁö ¾Ê¾Ò´Ù"°í ¶óÇǵå Äí·¹½Ã(Rafid Qureshi)´Â ¸»Çß´Ù.


±×´Â ƯÈ÷ "DEWA´Â ThorPlas-Blue¸¦ ¼³Ä¡ÇÔÀ¸·Î½á ´Ù¿îŸÀÓÀ» ¾à 5¸¸ ´Þ·¯ Àý°¨ÇÏ°í °èȹµÇÁö ¾ÊÀº À¯Áö º¸¼ö¿Í ±×¸®½º ¹× ¿¹ºñ ºÎÇ° Á¶´Þ °ü·Ã ºñ¿ëÀ» ¾ø¾Ý´Ù. Thordon ¼³Ä¡ ÀÌÈÄ ¸ðµç ¼³ºñ¿¡¼­ ºñ½ÁÇÑ ¿î¿µºñ¿ë Àý°¨ È¿°ú¸¦ °æÇèÇß´Ù"¶ó°í °­Á¶Çß´Ù.


Å丣·Ð º£¾î¸µ(Thordon Bearing)ÀÇ Àü·« °èÁ¤ ¸Å´ÏÀú - ¹öƼ°¥ ÆßÇÁ½º(Vertical Pumps), Å°½º ºê·£µå(Keith Brand)´Â "OPI ÆÀÀº ÀÌ ÃÖÁ¾ »ç¿ëÀÚ¸¦ ¼ö½Ê¸¸ ´Þ·¯¸¦ Àý¾àÇÏ´Â ³î¶ó¿î ÀÏÀ» Çس´Ù"¶ó°í µ¿ÀÇÇß´Ù.


 Å丣Çöó½º-ºí·ç(ThorPlas-Blue) º£¾î¸µÀº ¸ðµç À¯ÇüÀÇ »ê¾÷¿ë ÆßÇÁ¿¡ »ç¿ëÇÒ ¼ö ÀÖÀ¸¸ç ûµ¿ ¹× ±âŸ ºñ±Ý¼Ó º£¾î¸µÀ» ±³Ã¼ÇÏ´Â µ¥ ÀÌ»óÀûÀÌ´Ù. ´Ù¾çÇÑ Å©±â·Î Á¦°øµÇ¸ç ÇÊ¿äÇÑ Ä¡¼ö¿¡ ¸ÂÃç ½±°Ô °¡°øÇÒ ¼ö ÀÖ´Ù.


±×¸®½º ºê·ÐÁî º£¾î¸µ(greased bronze bearing) ´ë½Å À¯Áöº¸¼ö°¡ ÇÊ¿ä ¾ø´Â °ÍÀ¸·Î °³¹ßµÈ ThorPlas-Blue´Â ÃÖ´ë 45MPa(6527psi)ÀÇ µ¿Àû ÀÛµ¿ ¾Ð·ÂÀÌ °¡´ÉÇÑ Àü¿ë ¿£Áö´Ï¾î¸µ ¿­°¡¼Ò¼º Çöó½ºÆ½ º£¾î¸µÀ̸ç, ±×¸®½º ºê·ÐÁî°¡ ÇöÀç ¼³Ä¡µÇ¾î ÀÖ´Â °ÅÀÇ ¸ðµç ¾ÖÇø®ÄÉÀ̼ǿ¡ ½±°Ô ´Ù½Ã ÀåÂøÇÒ ¼ö ÀÖ´Ù. Å丣µ· ¿£Áö´Ï¾î¸µ °ËÅä ÈÄ ´õ ³ôÀº ¾Ð·ÂÀÌ ¹ß»ýÇÒ ¼ö ÀÖ´Ù.


Å°½º ºê·£µå(Keith Brand)´Â "±â¸§À» Á¦°ÅÇÔÀ¸·Î½á È®½ÇÇÑ ºñ¿ë»óÀÇ ÀÌÁ¡À» ¾òÀ» ¼ö ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó º£¾î¸µ Àç·á´Â ±âÁ¸ÀÇ ´Ù¸¥ ÆßÇÁ º£¾î¸µ¿¡ ºñÇØ ÈξÀ ¾ÈÀüÇÏ°í ±ú²ýÇØÁ³´Ù"¶ó°í µ¡ºÙ¿´´Ù.


°¡Àå ÃÖ±ÙÀÇ ÇÁ·ÎÁ§Æ®¿¡´Â  Å丣Çöó½º-ºí·ç(ThorPlas-Blue) º£¾î¸µÀ» µÎ¹ÙÀÌ ´ã¼öÈ­ Ç÷£Æ® D, G, L ¹× MÀÇ À̵¿½Ä, Çؼö ¹× ¼Ò¹æ ÆßÇÁ ¿ª·ù ¹æÁö ¹ëºê·Î °³Á¶ÇÏ´Â ÀÛ¾÷ÀÌ Æ÷ÇԵȴÙ.


OPI´Â 2022³â ¸»±îÁö ¸ðµç DEWA ÆßÇÁ º£¾î¸µÀÇ 60% ÀÌ»óÀ» ThorPlas-Blue ¶Ç´Â SXL·Î ÀüȯÇϱ⸦ Èñ¸ÁÇÏ°í ÀÖ´Ù.


OPIÀÇ ¶óÇǵå Äí·¹½Ã(Rafid Qureshi) »ó¹«´Â "Å丣µ·ÀÇ º£¾î¸µ Àç·á´Â º¸´Ù Áö¼Ó °¡´ÉÇÏ°í ¾ÈÁ¤ÀûÀÌ¸ç °æÁ¦ÀûÀÎ ±â¼úÀ» äÅÃÇÏ·Á´Â DEWAÀÇ ¾à¼Ó°ú Àß µé¾î¸Â´Ù. DEWA°¡ °æÀï ¿ìÀ§¸¦ À¯ÁöÇÏ´Â µ¿½Ã¿¡ ESG(Environment Social Governance ; ȯ°æ¡¤»çȸ¡¤Áö¹è±¸Á¶) ¸ñÇ¥¿¡ ±â¿©ÇÒ ¼ö ÀÖ´Ù"¶ó°í ¸»Çß´Ù.


DEWA(µÎ¹ÙÀÌ Àü±â¼öÀÚ¿øºÎ, Dubai Electricity & Water Authority)´Â ÇöÀç ¼³Ä¡ ¿ë·® 1¸¸2õ300¸Þ°¡¿ÍÆ®(MW)¿Í ÇÏ·ç¿¡ 178¸¸ ų·Î¸®ÅÍ(4¾ï7õ¸¸ °¶·±)ÀÇ ´ã¼öÈ­ ¼³ºñ ¿ë·®À» º¸À¯ÇÏ°í ÀÖÀ¸¸ç, µÎ¹ÙÀÌ¿¡¼­ 100¸¸ ¸í ÀÌ»óÀÇ °í°´¿¡°Ô ¼­ºñ½º¸¦ Á¦°øÇÏ°í ÀÖ´Ù.


[¿ø¹®º¸±â]


DEWA to replace pump and valve bearings with Thordon¡¯s grease-free material
 


DEWA has been systematically replacing its traditional bearings with Thordon products at facilities across Dubai. The first bearing retrofit was carried out more than 25 years ago.


Dubai Electricity & Water Authority (DEWA) is a step closer to replacing its industrial pump bearings with grease-free Thordon water lubricated bearing solutions, following the installation of the Canadian company¡¯s pioneering technology to desalination plants across the United Arab Emirates.


In the first six months of this year, Ocean Power International (OPI), Thordon Bearings¡¯ Dubai-based distributor, supplied ThorPlas-Blue and SXL bearings for installation to 20 butterfly valves and 7 brine recirculation and vertical pumps, respectively.


For quite some time now, DEWA has been systematically replacing its traditional bearings with Thordon products at facilities across Dubai. The first bearing retrofit was carried out more than 25 years ago.


OPI Managing Director, Rafid Qureshi said: ¡°After hearing about the issues that DEWA was having with the original bearings, we proposed a solution that included ThorPlas-Blue. After checking load calculations and ensuring operating pressures did not exceed the bearing material¡¯s 45 MPa (6,527 psi) tolerance, we machined and fitted the Thordon bushings.


¡°Since that first installation, we have replaced pump and valve bearings at several power generation and desalination plants across Dubai.¡±


In 2019 for example, OPI and Thordon completed bearing retrofits at the OPI workshop for a de-mineralization pit pump after fabric lined metal bearings had worn out. And in May last year, 20 vertical pumps and 6 brine recirculation pump isolation valves at the OPI workshop were retrofitted with the Thordon polymer material.


¡°The bronze bushings originally installed in the vertical pumps were wearing out and causing frequent breakdowns every 6-8 months,¡± said Qureshi. ¡°Unfortunately, there were multiple components that failed as a result of the bushing failure, forcing DEWA to find a longer lasting, more reliable solution.


¡°As the medium in these pumps is seawater, the new bearings had to be corrosion resistant, and capable of withstanding high operating speeds and temperatures up to 80¡ÆC (176¡ÆF). ThorPlas-Blue was deemed the ideal bearing grade for this kind of application.¡±


Since DEWA began operating their vertical pumps with the ThorPlas-Blue bearings, there has been zero downtime or increased vibration, Qureshi said.


¡°By installing ThorPlas-Blue, DEWA has saved about US$50,000 in downtime, eliminating unplanned maintenance and the costs associated with grease and spare parts procurement. Similar reductions in operational expenditures have been experienced across all of the company¡¯s facilities following the Thordon installations,¡± he said.


Thordon Bearings¡¯ Strategic Account Manager - Vertical Pumps, Keith Brand agreed: ¡°The team at OPI have done a phenomenal job in saving this end user hundreds of thousands of dollars.¡±


The ThorPlas-Blue bearing can be used in all types of industrial pump applications and is an ideal replacement for bronze and other non-metallic bearings. It is available in a wide range of sizes and is easily machined to the dimensions required.


Developed as a maintenance-free alternative to greased bronze bearings, ThorPlas-Blue is a proprietary engineered thermoplastic bearing capable of dynamic operating pressures up to 45 MPa (6527 psi) and can easily be back fit into virtually all applications where greased bronze is currently installed. Higher pressures may be possible following a Thordon engineering review.


¡°The elimination of grease not only offers obvious cost benefits, but the bearing material is much safer and cleaner to operate than other conventional pump bearings,¡± added Brand.


The most recent projects involve the retrofitting of ThorPlas-Blue bearings to potable, seawater and fire-fighting pump non-return valves at Dubai desalination plants D, G, L and M.


OPI hopes to have converted more than 60% of all DEWA pump bearings to ThorPlas-Blue or SXL by the end of 2022.


¡°Thordon¡¯s bearing material certainly fits well with DEWA¡¯s commitment to adopting more sustainable, reliable and economically efficient technologies. It can help DEWA maintain a competitive edge while contributing to its Environmental, Social, and Governance (ESG) objectives,¡± said Qureshi.


DEWA currently has an installed capacity of 12,300 megawatts (MW) of electricity and 1.78 million Kiloliters (470 million gallons) of desalinated water per day, providing its services to over one million customers in Dubai.


[Ãâó=Utilities Middle East(https://www.utilities-me.com/news/17599-dewa-to-replace-pump-and-valve-bearings-with-thordons-grease-free-material) / 2021³â 7¿ù 10ÀÏ]

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