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Goulds Pumps helps control the Yangtze River
applications flood control
Goulds Pumps helps control the Yangtze river In one of the largest construction projects ever undertaken, the Three Gorges Dam on the Yangtze River in China will provide the country with significant power generation and flood control services. Pumps from ITT Industries’ Goulds Pumps operation in China are playing an important role in this massive project. More than seventy years ago, Dr Sun Yat-sen, pioneer of the Chinese democratic revolution, first proposed the idea of the Yangtze River’s Three Gorges Dam. For years, the project remained only a dream – until, after the founding of the People's Republic of China, devastating floods along the river put the project back on the agenda in the 1950s. After meticulous feasible studies, it was decided that the advantages of the project – including much-needed flood control, power generation and enhanced navigation – outweighed any disadvantages. And in 1992, the National People’s Congress green-lighted the massive construction project, which is said to be China's largest construction project since the Great Wall. Nanjing Goulds Pumps operation in China won the job of supplying pumps for the 1.4 mile long dam, which is destined to be the world's largest water conservation facility. Some 48 Nanjing Goulds deep well turbine pumps will comprise the majority of the pumps used in the project’s permanent ship lock system. This ship lock system will allow passenger and cargo ships to navigate the upper reaches of the Yangtze river, opening new opportunities in agriculture and manufacturing in the region. Once the ship lock system is operational, 10,000-ton towboats are expected to be able to sail further up the Yangtze River. The Yangtze's navigation capacity is expected to grow from 10 to 50 million tons a year, and to allow journeys to be made far more costeffectively. Nanjing Goulds pumps were chosen for this historic project for several reasons. They operate at 20% higher efficiency than those made by other manufacturers in China. They are less noisy, do not vibrate, and use a rubber-bearing design that makes them well-suited for the Yangtze's rough sand-and-mud conditions.
WORLD PUMPS April 2005
www.worldpumps.com 15
applications flood control
Along with expanded river navigation, the Three Gorges Dam will provide significant flood control and power generation advances in China. Its Hydropower Station is expected to generate 84.7 kWh per year, or one-ninth of the country's total generated power. It is expected to be completed in 2009, with all Nanjing Goulds pumps installed and in use in 2003.
In the past three years Nanjing Goulds has contributed to several other important projects in China, including the Yellow River Project. Nanjing Goulds Pumps provided pumps to be used in dam drainage and hydropower inspection and repairing drainage systems at the Yellow River, which is China’s second largest hydropower station investment behind the Three Gorges Dam.
Alldos given a challenge of Olympic proportions The 2004 Olympic Games provided Alldos with an unparalleled opportunity to demonstrate the effectiveness of its equipment for supplying clean drinking water to the four million inhabitants of Athens, Greece, and visitors to the Games. In order to guarantee drinking water of the highest quality to thirsty visitors and athletes, Alldos was contracted to develop state of the art disinfection systems and measuring/control systems. Four existing water treatment plants were identified for the systems, these being Galatsi, Melindi, Kiourka and Aspropyrgos. The key to the effectiveness of the four plants was their control using a cutting-edge SCADA remote monitoring system. With this, operators were able to continuously monitor plants some 40 km apart from a central control room and if necessary, make adjustments without have to make site visits. The total treatment capacity of the four water treatment plants was 1.9 million m3 per day, this being the estimated requirement for the four million inhabitants and visitors in the Athens conurbation. The solution designed by Alldos involved the installation of 52 KM 257 hydraulically actuated piston diaphragm pumps, 45 GS 140 chlorine gas dosing systems with a capacity range of 10-40 kg/h and 9 Type 171 liquid gas evaporators. Associated plant equipment included
The site of the water treatment plant in Athens.
16
www.worldpumps.com
pulsation dampers, header lines, vacuum changeover units liquid traps and pressure reducing valves. The KM257 pump was specified as it gives high accuracy dosing of aluminium phosphate and polyelectrolyte at quantities of up to 1500 litre/h and is well proven in the most demanding water treatment applications. Offering an accuracy of +/1%, these were hydraulically actuated piston diaphragm dosing pumps with polytetrafluoroethylene (PTF)E diaphragms, diaphragm protection and integral pressure relief valves. With the options of both manual and remote stroke length adjustment, plus the facility to alter the dosing flow when not in operation, this pump type provided the water treatment plant operators in Athens with the best possible solution for ensuring a constant flow of water demanded during the Games. The automatic floor standing GS140 high capacity chlorine gas dosing systems employ sensors and microprocessor electronics for the flow measurement and control of the dosing flow. The dosing unit contained within the cabinet structure incorporates a gas flow meter, differential pressure regulator and a servomotor for the automatic regulation of the gas output. According to Alldos, the project brought into play almost the full scope of its water related experience and engineering resources. Whilst the prime requirement was for a highly robust and reliable solution to meet the immediate needs of the Olympic Games, the systems installed at each of the four treatment plants will ensure that Athenians will continue to benefit from a high quality drinking water well into the future.
WORLD PUMPS April 2005
Goulds Pumps helps control the Yangtze river In one of the largest construction projects ever undertaken, the Three Gorges Dam on the Yangtze River in China will provide the country with significant power generation and flood control services. Pumps from ITT Industries’ Goulds Pumps operation in China are playing an important role in this massive project. More than seventy years ago, Dr Sun Yat-sen, pioneer of the Chinese democratic revolution, first proposed the idea of the Yangtze River’s Three Gorges Dam. For years, the project remained only a dream – until, after the founding of the People's Republic of China, devastating floods along the river put the project back on the agenda in the 1950s. After meticulous feasible studies, it was decided that the advantages of the project – including much-needed flood control, power generation and enhanced navigation – outweighed any disadvantages. And in 1992, the National People’s Congress green-lighted the massive construction project, which is said to be China's largest construction project since the Great Wall. Nanjing Goulds Pumps operation in China won the job of supplying pumps for the 1.4 mile long dam, which is destined to be the world's largest water conservation facility. Some 48 Nanjing Goulds deep well turbine pumps will comprise the majority of the pumps used in the project’s permanent ship lock system. This ship lock system will allow passenger and cargo ships to navigate the upper reaches of the Yangtze river, opening new opportunities in agriculture and manufacturing in the region. Once the ship lock system is operational, 10,000-ton towboats are expected to be able to sail further up the Yangtze River. The Yangtze's navigation capacity is expected to grow from 10 to 50 million tons a year, and to allow journeys to be made far more costeffectively. Nanjing Goulds pumps were chosen for this historic project for several reasons. They operate at 20% higher efficiency than those made by other manufacturers in China. They are less noisy, do not vibrate, and use a rubber-bearing design that makes them well-suited for the Yangtze's rough sand-and-mud conditions.
WORLD PUMPS April 2005
www.worldpumps.com 15
applications flood control
Along with expanded river navigation, the Three Gorges Dam will provide significant flood control and power generation advances in China. Its Hydropower Station is expected to generate 84.7 kWh per year, or one-ninth of the country's total generated power. It is expected to be completed in 2009, with all Nanjing Goulds pumps installed and in use in 2003.
In the past three years Nanjing Goulds has contributed to several other important projects in China, including the Yellow River Project. Nanjing Goulds Pumps provided pumps to be used in dam drainage and hydropower inspection and repairing drainage systems at the Yellow River, which is China’s second largest hydropower station investment behind the Three Gorges Dam.
Alldos given a challenge of Olympic proportions The 2004 Olympic Games provided Alldos with an unparalleled opportunity to demonstrate the effectiveness of its equipment for supplying clean drinking water to the four million inhabitants of Athens, Greece, and visitors to the Games. In order to guarantee drinking water of the highest quality to thirsty visitors and athletes, Alldos was contracted to develop state of the art disinfection systems and measuring/control systems. Four existing water treatment plants were identified for the systems, these being Galatsi, Melindi, Kiourka and Aspropyrgos. The key to the effectiveness of the four plants was their control using a cutting-edge SCADA remote monitoring system. With this, operators were able to continuously monitor plants some 40 km apart from a central control room and if necessary, make adjustments without have to make site visits. The total treatment capacity of the four water treatment plants was 1.9 million m3 per day, this being the estimated requirement for the four million inhabitants and visitors in the Athens conurbation. The solution designed by Alldos involved the installation of 52 KM 257 hydraulically actuated piston diaphragm pumps, 45 GS 140 chlorine gas dosing systems with a capacity range of 10-40 kg/h and 9 Type 171 liquid gas evaporators. Associated plant equipment included
The site of the water treatment plant in Athens.
16
www.worldpumps.com
pulsation dampers, header lines, vacuum changeover units liquid traps and pressure reducing valves. The KM257 pump was specified as it gives high accuracy dosing of aluminium phosphate and polyelectrolyte at quantities of up to 1500 litre/h and is well proven in the most demanding water treatment applications. Offering an accuracy of +/1%, these were hydraulically actuated piston diaphragm dosing pumps with polytetrafluoroethylene (PTF)E diaphragms, diaphragm protection and integral pressure relief valves. With the options of both manual and remote stroke length adjustment, plus the facility to alter the dosing flow when not in operation, this pump type provided the water treatment plant operators in Athens with the best possible solution for ensuring a constant flow of water demanded during the Games. The automatic floor standing GS140 high capacity chlorine gas dosing systems employ sensors and microprocessor electronics for the flow measurement and control of the dosing flow. The dosing unit contained within the cabinet structure incorporates a gas flow meter, differential pressure regulator and a servomotor for the automatic regulation of the gas output. According to Alldos, the project brought into play almost the full scope of its water related experience and engineering resources. Whilst the prime requirement was for a highly robust and reliable solution to meet the immediate needs of the Olympic Games, the systems installed at each of the four treatment plants will ensure that Athenians will continue to benefit from a high quality drinking water well into the future.
WORLD PUMPS April 2005