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[ºê¶óÁú] ½¶Àú, ¾ß½ÉÂù ¹° ÆßÇÎ ÇÁ·ÎÁ§Æ®¼­ 1,200¸¸ °¡Áö ÇýÅÃ
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2020.06.15 Á¶È¸¼ö 543
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[ºê¶óÁú] ½¶Àú, ¾ß½ÉÂù ¹° ÆßÇÎ ÇÁ·ÎÁ§Æ®¼­ 1,200¸¸ °¡Áö ÇýÅÃ

 


ºê¶óÁú Á¤ºÎ´Â 1õ200¸¸ ¸íÀÌ °ÅÁÖÇÏ´Â ºÏµ¿ºÎ ¹Ý°ÇÁ¶ Áö¿ª¿¡ ±¸È£Ç°À» Àü´ÞÇϱâ À§ÇØ ³ë·ÂÇÏ°í ÀÖ´Ù.


½¶Àú(Sulzer)´Â ÀÌ ÇÁ·ÎÁ§Æ®¿¡¼­ °¡Àå Å« ÆßÇÁ Áß 6°³¸¦ ¼³°èÇÏ°í Á¦Á¶ÇÏ¿© »óÇÁ¶õ½Ã½ºÄÚ(Sao Francisco) °­¿¡¼­ °¡¹³ÀÇ ¿µÇâÀ» ¹Þ´Â Áö¿ªÀ¸·Î ¹°À» ¿î¹ÝÇß´Ù.


¼ö½Ê ³â µ¿¾È, ÇÁ¶û½º¿Í µ¿µîÇÑ ±Ô¸ðÀÇ ºê¶óÁú ºÏµ¿ºÎ Áö¿ª¿¡ ´ëÇÑ ¹° °ø±ÞÀ» °³¼±Çϱâ À§ÇÑ ÀÛ¾÷ÀÌ ÁøÇàµÇ¾î ¿Ô´Ù.


Áö³­ 10³â µ¿¾È Á¤ºÎ´Â ¼³°èÀÚ, ¿£Áö´Ï¾î, Á¦Á¶¾÷üµéÀ» ¸ð¾Æ 600kmÀÇ ¿îÇÏ, 9°³ÀÇ ¾ç¼öÀå, 27°³ÀÇ Àú¼öÁö¿Í ¸ðµç °ü·Ã ±â¹Ý½Ã¼³À» ¸¸µé¾ú´Ù.


ºÏºÎ ±¸°£ÀÇ ÃßÃâ ÁöÁ¡Àº ½¶Àú(Sulzer)°¡ Á¦Á¶ÇÑ °¡Àå Å« ÆßÇÁ Áß µÎ °³¸¦ ÇÊ¿ä·Î Çϸç, ÀϺΠÆßÇÁ´Â 5 MW ÀÌ»óÀÇ Àü±â ¸ðÅ͸¦ ÇÊ¿ä·Î ÇÑ´Ù.

 

 

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¡á µµÀü(The challenge)
ÀÌ ´ë±Ô¸ð ÇÁ·ÎÁ§Æ®¿¡´Â »óÇÁ¶õ½Ã½ºÄÚ °­ÀÇ µÎ ÁöÁ¡¿¡¼­ ¹°À» ÃßÃâÇÏ´Â ÀÛ¾÷ÀÌ Æ÷ÇԵǾú´Âµ¥, ù ¹ø°·Î´Â ºÏÀ¸·Î, µÎ ¹ø°·Î´Â ºÏµ¿ÂÊÀ¸·Î ¹°À» ÆÛ ¿Ã¸®´Â ÀÛ¾÷À̾ú´Ù.


µÎ °æ¿ì ¸ðµÎ ¼³°èÀÚµéÀº ƯÈ÷ »óÇÁ¶õ½Ã½ºÄÚ °­ÀÇ °¡º¯ ³ôÀÌ¿Í ¹°ÀÌ À̵¿ÇØ¾ß ÇÏ´Â °Å´ëÇÑ °Å¸® µî ¿©·¯ °¡Áö ³­°üÀ» ±Øº¹ÇØ¾ß Çß´Ù.


¼¼°è À¯¼öÀÇ ÆßÇÁ Á¦Á¶»ç Áß ÇÑ »ç¶÷ÀÎ ½¶Àú(Sulzer)´Â Ãʱ⠴ܰèºÎÅÍ ÀÌ ÇÁ·ÎÁ§Æ®¿¡ Âü¿©ÇÏ¿© Çö´ëÀûÀÎ ÆßÇÁ ¼³°è·Î ´Þ¼ºÇÒ ¼ö ÀÖ´Â °Í¿¡ ´ëÇÑ ±â¼úÀû Á¶¾ðÀ» Á¦°øÇÏ¿´´Ù.


ÀÌ·Î ÀÎÇØ ½¶Àú(Sulzer)´Â 2007³â¿¡ ÀÌ °³³äÀ» Çö½ÇÈ­ÇÏ´Â µ¥ µµ¿òÀÌ µÇ´Â 6°³ÀÇ °Å´ëÇÑ ÆßÇÁ¸¦ ¼³°èÇÏ°í Á¦Á¶ÇÏ´Â °è¾àÀ» µû³Â´Ù.


ºÏÂÊ¿¡¼­´Â ½Ã°£´ç 4¸¸5õ§©/h(26'500cfm)ÀÇ À¯·®À» °¡Áø BKN 1800 ¼öÁ÷ ÆßÇÁ°¡ Á¦¾ÈµÇ¾ú°í, °¢°¢ÀÇ À¯·®Àº °ÅÀÇ 100Åæ(110Åæ)À̸ç, 5õ500kW(7'300HP)ÀÇ Àü±â ¸ðÅÍ°¡ ÇÊ¿äÇÏ´Ù.


°¢ ÆßÇÁ´Â ¸Ó¸®°¡ 36m(118ÇÇÆ®)ÀÎ 2mÀÇ ¹è°üÀ» »ç¿ëÇÏ¿© ¹°À» ¹èÃâÇÑ´Ù. µ¿ºÎ ±¸¿ª¿¡ ÀÖ´Â µÎ °³ÀÇ ÆßÇÁÀå¿¡´Â ½Ã°£´ç 2¸¸5õ§©(14'700 cfm)ÀÇ À¯¼Ó BK 1870 ÆßÇÁ¿Í BKn 1õ470 ÆßÇÁ°¡ ÀåÂøµÈ´Ù.


¡á ¸ðµ¨¸µ ¼º´É(Modelling performance)
ÀÌ ÇÁ·ÎÁ§Æ®¿¡ ¼±ÅÃµÈ 3°³ÀÇ ÆßÇÁ ¸ðµ¨Àº ¸ðµÎ À¯¾Ð ÇÁ·ÎÆÄÀÏÀ» ¾Ë°í ÀÖ¾úÁö¸¸, °ü·Ã Àü·Â ¿ä°ÇÀ» °®Ãá ´ëÇü È帧À¸·Î Á¦Á¶µÈ ÀûÀº ¾ø¾ú´Ù.


ºê¶óÁúÀÇ ½¶Àú(Sulzer) ¿¡³ÊÁö »ç¾÷ºÎÀÇ ºê·ç³ë ¾ÈÅä´Ï¾Æ¾¾(Bruno Antoniassi) ¿µ¾÷Ã¥ÀÓÀÚ´Â "ÈíÀÔ ¿ì¹° ±âÇÏÇÐ, À¯¾Ð ¼º´É ¹× ÆßÇÁÀÇ ±â°èÀû ±¸Á¶¸¦ °ËÁõÇϱâ À§ÇØ Ãà¼Ò ¸ðµ¨À» ¸¸µå´Â °ÍÀÌ ÇʼöÀûÀ̾ú´Ù"°í ¼³¸íÇß´Ù.


ºê·ç³ë ¾ÈÅä´Ï¾Æ¾¾´Â À̾î "Á¦¾ÈµÈ ÆßÇÁ ¼³°èÀÇ Ä¡¼ö¿Í ¹«°Ô ¶§¹®¿¡ »ó¾÷ÀûÀ¸·Î ±¸ÇÒ ¼ö ÀÖ´Â ½ÃÇè´ë¿¡¼­ ½ÃÇèÇÒ ¼ö ¾øÀ» °ÍÀÌ´Ù. ´ÙÇàÈ÷µµ, ¿ì¸® µðÀÚÀ̳ʵéÀº ÀÌ ÇÁ·ÎÁ§Æ® µ¿¾È ¹ß»ýÇÑ ÀÌ°Í°ú ¸î °¡Áö ´Ù¸¥ ¹®Á¦µéÀ» ±Øº¹ÇÒ ¼ö ÀÖ¾ú´Ù. ÄÄÇ»ÅÍ ¸ðµ¨¸µ»Ó¸¸ ¾Æ´Ï¶ó Ãà¼ÒÇü ÆßÇÁ¸¦ »ç¿ëÇÏ¿© ¸ðµç ¹®Á¦¸¦ ÇØ°áÇß´Ù"¶ó°í °­Á¶Çß´Ù.


ÁÖ¿ä ÇÕº´Áõ Áß Çϳª´Â ±× Áö¿ªÀÇ °­¿ì·®¿¡ µû¶ó »ó´çÈ÷ ´Þ¶óÁú ¼ö ÀÖ´Â °­ ¼öÀ§¿¡ °üÇÑ °ÍÀ̾ú´Ù.


ÈíÀÔ ¹èÄ¡¿Í ÆßÇÁ ÀÚüÀÇ ¼³°è´Â ÀÌ·¯ÇÑ º¯µ¿À» ¼ö¿ëÇØ¾ß Çß°í ¿©ÀüÈ÷ ¿ä±¸µÇ´Â À¯·®À» Àü´ÞÇØ¾ß Çß´Ù. ƯÈ÷ ¼öÀ§°¡ ³·°í °ÇÁ¶ Áö¿ªÀÇ ¼ö¿ä°¡ ÃÖ°íÁ¶¿¡ ´ÞÇßÀ» ¶§ ¸»ÀÌ´Ù.


±× ÇØ°áÃ¥Àº ´Ù¸¥ ÈíÀÔ ¼öÁØ¿¡¼­ ÀÛµ¿ÇÒ ¼ö ÀÖ´Â ÆßÇÁ ¼³°è¸¦ ¸¸µå´Â °ÍÀ̾ú½À´Ï´Ù. À¯¼Ó°ú Àü·Â ¼ö¿ä´Â º¯È­ÇÏ´Â »óȲ¿¡ ºÎÇÕÇÏ´Â °ÍÀ̾ú½À´Ï´Ù.


¡á È¿À²¼º ±Ø´ëÈ­(Maximizing efficiency)
¹°·Ð, ÀÌ·¯ÇÑ ÆßÇÁ¸¦ ±¸µ¿Çϱâ À§ÇÑ Å« Àü·Â ¿ä±¸ Á¶°Ç°ú ÇÔ²², È¿À²¼ºÀº ¼³Àú¿¡°Ô ÀÖ¾î Áß¿äÇÑ µµÀü°úÁ¦ Áß Çϳª¿´´Ù.


°¢ ÆßÇÁÀÇ Àüü ÁöÃâ¿¡¼­ ¿î¿µºñ°¡ 90%¸¦ Â÷ÁöÇϱ⠶§¹®¿¡ ÃÖÀû È¿À²À» Á¦°øÇÏ´Â ¼³°è¸¦ ¸¸µå´Â °ÍÀÌ ÇÁ·ÎÁ§Æ®ÀÇ ÁÖ¿ä ¿ì¼±¼øÀ§¿´´Ù.


Àü¹ÝÀûÀÎ ÆßÇÎ È¿À²Àº ±â°è, À¯¾Ð ¹× üÀû È¿À²·Î °è»êµÇ¸ç, ÀÌ ¸ðµÎ ÆßÇÁ ±¸¼º ¿ä¼ÒÀÇ ¿£Áö´Ï¾î¸µ ¼³°è¿¡ ÀÇÇØ °áÁ¤µÈ´Ù.


½¶Àú(Sulzer)´Â °¢ ÆßÇÁÀÇ ¼³°èµµ¸¦ Á¤±³ÇÏ°Ô ´Ùµë¾î Á¤È®ÇÑ ¿ªÇÒ°ú ÀÏÄ¡Çϵµ·Ï ÇßÀ¸¸ç, °í°´¿¡°Ô Á¤°Ý ÁöÁ¡¿¡¼­ È®½ÇÇÑ È¿À²À» º¸ÀåÇß´Ù.


µðÀÚÀÎÀ» È®Á¤ÇÏ°í ¸ðµ¨À» Å×½ºÆ®Çϸé Á¦Á¶°¡ ½ÃÀÛµÉ ¼ö ÀÖ´Ù. ÀÌ·¸°Ô Å« ÁÖÁ¶¹°°ú »ó´çÇÑ ¾çÀÇ °¡°øÀÌ ÀÌ·ç¾îÁ®¾ß ÇÏ´Â »óȲ¿¡¼­, 6°³ÀÇ ÆßÇÁÀÇ Á¦Á¶ ½Ã°£Àº 12°³¿ù¿¡¼­ 15°³¿ù·Î ÃßÁ¤µÇ¾ú´Ù.


½¶Àú(Sulzer)ÀÇ ºê¶óÁú ½Ã¼³¿¡¼­ ¸ðµç ÀÛ¾÷ÀÌ ¿Ï·áµÇ¾î °í°´ÀÌ ÁøÇà »óȲÀ» ½±°Ô ¸ð´ÏÅ͸µÇÒ ¼ö ÀÖ¾ú´Ù.


¡á ´ë°èȹ ¿Ï·á(Completing the grand plan) 

ºê·ç³ë ¾ÈÅä´Ï¾Æ¾¾(Bruno Antoniassi) ¿µ¾÷Ã¥ÀÓÀÚ´Â ´ÙÀ½°ú °°ÀÌ ¸»ÇÏ°í ÀÖ´Ù. "½¶Àú(Sulzer)´Â ÆßÇÁ ¼³°è¿¡ ´ëÇÑ ¿ì¸®ÀÇ Àü¹® Áö½Ä»Ó¸¸ ¾Æ´Ï¶ó ºê¶óÁú°ú Àü¼¼°è ³×Æ®¿öÅ© ³»¿¡ ÀÖ´Â ¿ì¸®ÀÇ ±¤¹üÀ§ÇÑ ½Ã¼³°ú ³ëµ¿·Â ¶§¹®¿¡ ÀÌ °è¾àÀ» ÀÌÇàÇϵµ·Ï ¼±ÅõǾú´Ù."


[¿ø¹®º¸±â]


Making A Brazilian Oasis: 12 Million Benefit From Ambitious Water Pumping Project

 

 

In Brazil, the government has been looking to bring relief to a semi-arid area in the northeast of the country that is home to 12 million people.


Sulzer designed and manufactured six of the largest pumps in the project, to transfer water from the Sao Francisco River to the drought-affected area.


For decades, work has been going on to improve the water supply to the northeast region of Brazil that is equivalent in size to France.


Over the past 10 years, the government has brought together designers, engineers and manufacturers to create 600 km of canals, 9 pumping stations, 27 reservoirs and all of the associated infrastructure.


The extraction point for the Northern section would require two of the largest pumps ever manufactured by Sulzer, and some of the pumps would require electric motors rated over 5 MW.


The challenge
This massive project involved extracting water from two points on the Sao Francisco River; the first pumping it to the North and the second pumping water to the Northeast.


In both cases, the designers had to overcome a number of challenges, especially the variable height of the Sao Francisco River and the huge distances that the water had to travel.


As one of the world¡¯s leading pump manufacturers, Sulzer was involved in this project from the early stages, offering technical advice on what could be achieved with modern pump designs.


This led to Sulzer being awarded the contract in 2007 to design and manufacture six enormous pumps that would help make this concept a reality.


In the North, BKn 1800 vertical pumps were proposed, with a flowrate of 45¡¯000 m3/hour (26¡¯500 cfm), they would weigh almost 100 tonnes (110 tons) each and require an electric motor rated at 5¡¯500 kW (7¡¯300 HP).


Each pump would discharge the water using two-meter pipework with a head of 36 meters (118 feet). For two of the pumping stations on the Eastern section, they would be equipped with BK 1870 pumps and BKn 1470 pumps with flowrates of 25¡¯000 m3/hour (14¡¯700 cfm).


Modelling performance
All three of the pump models selected for this project had known hydraulic profiles, but they had never been manufactured for such large flows with the associated power requirements.


Bruno Antoniassi, Head of Sales, Brazil Energy Business for Sulzer, explains: ¡°It was essential that we create scaled-down models to validate the suction well geometry, the hydraulic performance and the mechanical structure of the pumps.


¡°Due to the dimensions and the weight of the proposed pump designs, it would not be possible to test them on a commercially available test stand. Fortunately, our designers were able to overcome this and several other challenges that arose during this project. Using computer modelling as well as scaled-down pumps, we resolved all of the issues.¡±


One of the main complications concerned the river levels, which can vary considerably, depending on the rainfall in the area.


The design of the suction layout and the pump itself had to accommodate this variation and still deliver the required flowrate, especially when water levels were low and demand in the arid areas was at a peak.


The solution was to create pump designs that could operate at different suction levels, with the flowrates and power demands matching the changing situation.


Maximizing efficiency
Of course, with such large power requirements to drive these pumps, efficiency was one of the major challenges for Sulzer.


Since the running costs make up 90% of the overall expenditure of each pump, creating a design that delivers optimum efficiency was a major priority for the project.


Overall pumping efficiency is calculated from mechanical, hydraulic and volumetric efficiencies, all of which are determined by the engineering design of the pump components.


Sulzer refined the design of each pump to ensure it precisely matched its role and provided the customer with a guaranteed efficiency at the rated point.


Having finalized the design and tested the models, manufacturing could begin. With such large castings and a considerable amount of machining to be done, the build time for the six pumps was estimated at 12 to 15 months.


All of the work was completed in Sulzer¡¯s Brazilian facilities, which enabled the customer to monitor progress easily.


Completing the grand plan
 Bruno Antoniassi continues: ¡°Sulzer was chosen to deliver this contract for a number of reasons, not least our expertise in pump design, but also because of our extensive facilities and labor resources in Brazil and within our global network.


[Ãâó=¿öÅͿ¶óÀÎ(https://www.wateronline.com/doc/making-a-brazilian-oasis-million-benefit-from-ambitious-water-pumping-project-0001) / 2020³â 6¿ù 11ÀÏ]

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