Feb 5
New YouTube video: Is a Split Case Pump the Ideal High‑Flow Solution?
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New YouTube video: Is a Split Case Pump the Ideal High‑Flow Solution?
www.grundfos.com
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Range of high-performance water pumps expanded with flow rates of up to 20,000 m³/h at heads of up to 300 m
The growing scale of water transport systems in the past few years has resulted in a steady increase in the volume flow rates demanded of the pumps installed, which in turn has required ever larger pump sizes. Responding to this development, KSB Group has expanded its RDLO type series from 21 sizes to 33.
With twelve new sizes the RDLO type series has been significantly expanded in line with the trend towards ever larger pumps for water transport. (© KSB SE & Co. KGaA, Frankenthal) The pump sets are axially split volute casing pumps primarily used for clean water transport. Their extreme durability is the main reason why they are used in pumping stations all over the world. A casing with double volute compensating radial forces and a double-entry impeller compensating axial forces are key to a long service life. As a result, the generously dimensioned rolling element bearings are subjected to a minimum load only. “Excellent efficiencies guarantee low energy costs over the pumps’ entire service life”, acc. an KSB information. Low-vibration operation is ensured by solid bearing brackets bolted to the upper part of the casing and a rigid shaft. The loads on the rolling element bearings, the mechanical seals and the coupling between pump and motor are thus significantly reduced. Ease of service played an important role when designing this type series. The self-centring upper part of the casing and the spring-loaded rotor enable cover and rotor mounting without any further adjustments. Thanks to the expansion of the type series, flow rates of up to 20,000 m³ per hour at heads of up to 300 m can now be achieved. As RDLO pumps are also capable of transporting seawater, the materials used include duplex steels alongside standard materials such as grey cast iron and nodular cast iron. www.ksb.com Read the full article
Pump efficiency increases with larger RO trainsOver the past two decades, desalination plants have become bigger, more cost-effective and twice as energy efficient. Innovations in pump technology from Sulzer have played a critical part in the transformation of the sector. Antonio de la Torre explores the advances in pumps that have supported the optimization of desalination plants.Surging demand has been the catalyst for continual innovation in the desalination industry, and there is no better example than the changes in the design and technology of seawater reverse osmosis (SWRO) plants since the beginning of the 21st Century. As a pump specialist, Sulzer has decades of experience in the RO sectorIn 2001, a 50’000 m³ per day SWRO plant was considered quite large. While there were a few larger facilities in operation around the world, most were significantly smaller. An SWRO train with a capacity of 15’000 m³ per day was considered huge and Pelton turbines were the dominant energy recovery technology.At the time, a high-pressure RO pump delivering 600 m³ per hour with an efficiency of 83 % was a considerable technical achievement.An efficiency revolution20 years on, the specific power consumption of SWRO plants has been reduced from 6 kWh per m³ to less than 3 kWh per m³. Improvements in membrane performance and the use of new energy recovery devices have been crucial in that doubling of energy efficiency, but advances in pump technology have also played an important role. Sulzer MSB pump for Magtaa Reverse Osmosis project (Algeria) at the assembly shop.The pump specialists from Sulzer have been involved in the RO sector for many decades. Constantly pushing the boundaries of pump design and providing reliable, high-performance equipment to major projects worldwide.The use of wear parts made of polymeric materials with good tribological properties, for example, have enabled efficiency improvements of 2 % to 3 %. Advanced materials have also paved the way for the introduction of product-lubricated bearings that require no oil or grease. That saves operators the expense and complexity of forced oil lubrication systems, reduces the risk of product contamination and enables state-of-the-art efficiency without compromising reliability.Improvements in hydraulic performance have been achieved by replacing axial split casing pumps with ring section designs. Initially, this approach was only applied to smaller RO trains, but these pumps are now available with capacities of up to 1’000 m³ per hour for larger trains.Hydraulic improvements came also in low pressure applications, where traditionally single stage, double suction pumps were traditionally used. Today, even at higher capacities, users are now choosing cost-effective end suction overhung pump designs with higher efficiencies and extremely good suction performance in a highly reliable way.Pump control technology has improved dramatically too, thanks to the availability of reliable and cost-effective variable speed drives. These give users the flexibility to run pumps over a wider range of operating conditions, minimizing the need to regulate flows via valve throttling. They also allow pumps to operate closer to their best efficiency point, avoiding unnecessary impeller trims that can have a negative impact on overall efficiency. While the first variable speed drives used in the industry were affordable only for low voltage drivers for low pressure pumps, the availability of medium voltage drives has extended the benefits of this approach to high-pressure pumps.Economies of scalePerhaps the most important driver of improved pump efficiency in RO plants leading to substantially reduced specific consumption has been scale, since the efficiency of a centrifugal pump increases with its capacity. The first opportunity to capture scale advantages came with the introduction of larger RO trains, which increased from a maximum of 15’000 m³ per day in 2001, to 25’000 or even 30’000 m³ per day. A choice of pump designs ensure the most efficient solution for each project.The next opportunity came from a change in system architecture. The creation of the Pressure Center concept allowed the introduction of very large pumps that supply multiple RO trains through a manifold system. Plants using this design were first introduced in the mid-2000s and it has since become the standard approach for large SWRO facilities.Sulzer has been supplying high pressure pumps for such Pressure Center concepts from the beginning. Utilizing a two-stage solution, the high-pressure pumps used in those first Pressure Center facilities had a high-pressure flow of around 2’500 m³ per hour and achieved efficiencies of around 88 %. Today, Sulzer is delivering high-pressure pumps for the largest plants with capacities in the range of 3’500 to 4’000 m³ per hour and efficiencies above 90 %.While efficiency improvements on the high-pressure pump are getting close to the physical limits, potential improvements are coming from other pumps services in a SWRO plant. This performance is being matched by the company’s latest low-pressure end suction pumps, used in other continuous services like the intermediate, the low-pressure booster or the second pass pumps, which can also achieve efficiency ratings of more than 90 %.The desalination sector is continually advancing, with incremental improvements in scale, efficiency and reliability. Each new project aims to reach the limits of performance, and every year the sector finds ways to push those limits just a little further. As a leading player in the pump industry and a longstanding partner to the sector, Sulzer is proud to play its own part in that ongoing improvement process. Ultimately, everyone has one common goal: delivering more affordable fresh water to the people that need it most.www.sulzer.com
Australian wine is world-renowned, and vineyards across the country go to great lengths to grow the perfect grape. Irrigation is paramount to achieve this in a hot climate, so farmers are always looking to deliver water to vines in the most efficient way possible. Consequently, when Yenda Prods Irrigation undertook a project for vineyards located near Griffith in New South Wales (NSW), it selected a Sulzer axial split case pump to deliver efficiency improvements of 3 to 5 % compared to competing designs. Many new world wines are produced in hot, arid areas – so irrigation is a key aspect of wine production in these regions. Being able to control the water supply to the vine can contribute to a grape with the desired characteristics, which hopefully results in a good vintage.Irrigation systems rely on pumps to move water to where it is needed throughout the vineyard – an operation that takes up a sizable chunk of the total power consumption. With these systems operating for extended periods, even marginally improving the efficiency of the system can provide sizeable long-term energy savings, maximizing the cost-effectiveness of wine production.Laying the groundwork Yenda Prods Irrigation is a major irrigation company within the NSW region. Famed for introducing new technology and practices to the water industry, it was approached by a customer to improve efficiency and reliability of the systems installed at its Cauduro & Poloni site. To accomplish this, energy and system audits would be required to find the optimal way to achieve the constant flow rate of approximately 256 liters per second needed by the vineyards.The pumps, pump stations, pipes, filtration, mainlines and valves were all analyzed along with input from a leading irrigation consulting engineering firm based out of Adelaide, South Australia to generate the required duty point.Using this information, it was determined that combining two of the pumping stations, reducing the number of pumps from three to one and connecting the farms with new mainlines was the optimized approach. However, this relied on sourcing a highly efficient pump that could meet the duty requirement.Serving the solution The Sulzer axial split case pumpAfter assessing available options, Yenda Prods Irrigation selected a Sulzer axial split case pump. As a global pump original equipment manufacturer (OEM) Sulzer offers full experience in providing specialized pumps for irrigation applications. The pump selected could meet the duty point of 256 liters per second at a 57 m head with 87.1 % overall efficiency - a 3 to 5 % improvement over competitors. Furthermore, it offered low net positive suction head required (NPSHr) of 3.2 m - another key advantage. Consolidating the pumping stations, reducing the number of pumps and connecting the farms with new mainlines further promoted efficiency.The robust construction of the Sulzer pump was also preferred. Irrigation water often contains abrasive particles, which can cause premature wear to key components such as the impeller. To ensure that efficiency was matched by reliability, a duplex steel impeller was specified to ensure long-term durability. Combined with additional filtration systems installed by Yenda Prods Irrigation, this would reduce downtime so that the vineyards could properly capitalize on the energy savings.“Sulzer, with its range of hydraulics, duplex impeller material, excellent efficiency and low NPSHr, was a very good fit for this application,” said Damon Cammish, Fabrication Manager & Mechanical Design Engineer at Yenda Prods Irrigation.Time has proven this statement correct. During the first year of operation, the pump has boosted process reliability while delivering the high efficiency expected. This has resulted in reduced operating costs, allowing the sites to deliver essential water to the vines in the most cost-effective way possible.Ramandeep Singh Saroya, National Sales Manager for the Greater Melbourne Area at Sulzer, adds: “We offer pumping solutions for the complete water cycle. Irrigation applications are one of our specialties, with our exceptional technical knowledge ensuring that we can deliver highly efficient and reliable pumps. In this case, our position ensured we could deliver an optimal solution at a very competitive capital cost.”www.sulzer,com
Water needs in the driest desert - pumps for desalination plant in Chile
The Atacama Desert in northern Chile is believed to be the driest desert on Earth, with the exception of the Polar regions. In spite of its inhospitable nature, the desert and surrounding region is a focal point of activity. The reason for this is its enormous wealth of natural resources. The abundant lithium, copper, silver, gold and platinum deposits are extracted in numerous local mines and form an important pillar of the economy in this South American country. One of these mines is Quebrada Blanca located in northern Chile’s Tarapacá region near the Atacama Desert. At an altitude of 4,400 meters some 240 kilometers southeast of the town of Iquique, the mine produces copper cathodes by processing in an SX/EW plant. An efficient duo: copper mine with a desalination plant In order to exploit the remaining copper resources in this deposit, this mine is now being expanded to include a copper concentrator with a production capacity of 140,000 tons per day. In order to use the Pacific Ocean, which is only about 150 kilometers away, as a water source, the Quebrada Blanca Phase 2 (QB2) expansion project includes a 165-kilometer water supply pipeline from the company’s own port which includes a desalination plant. The reverse osmosis process will be used in the desalination plant. This process filters the water through several semi-permeable membranes to remove the salt and other impurities. After this treatment, five pumping stations pump the water to the concentrator to an altitude of 4,300 m, where it is needed for the copper extraction process. The residual salt concentrate (referred to as brine) is returned to the ocean in an environmentally compatible way through diffusers at a depth of 40 meters and a distance of 750 meters from the coastline. To use the Pacific Ocean, which is only about 150 kilometers away, as a water source, the Quebrada Blanca Phase 2 (QB2) expansion project includes a 165-kilometer water supply pipeline from the company’s own port which includes a desalination plant. To implement this venture and comply with the related stringent environmental protection measures, the mine operator Teck with a majority holding in Quebrada Blanca awarded the order to one of the globally leading water treatment specialists – IDE. At the QB2 project, IDE is acting as EP (engineer and procurement supply) contractor. For this type of contract, the basic requirement is that key components for the desalination process – such as membranes, pumps and centrifuges – are only supplied by qualified companies with a healthy balance sheet and good financial standing. After a competitive bidding process, Andritz was awarded the order to manufacture and deliver the process pumps for seawater desalination and the centrifuges to treat the brine. Key technologies
Five Andritz double-flow axial split-case pumps from the ASP series are provided as general booster pumps. © Andritz With a complete, high-quality pumps and centrifuge program, Andritz covers most of the processes in modern, smart desalination plants. In this case, the Quebrada Blanca Desal Plant will be equipped with 11 process pumps and two centrifuges. The pumps program here comprises five vertical line shaft pumps for the pre-treatment process. There three of these hydraulic machines act as backwash pumps. They transport the filtered seawater into the filter system to backwash the filters in the pre-treatment process, while the other two pumps convey the backwashing liquid from the pre-treatment system to the centrifuges for dewatering.
Three of the five Andritz vertical line shaft pumps act as backwash pumps in the pretreatment process. © Andritz In addition, five double-flow axial split-case pumps from the ASP series are provided as general booster pumps. As a part of the main process, they pump the filtered seawater to the high-pressure pumps. A single-stage centrifugal pump from the ACP series completes the pumps delivery. It conveys the filtered seawater to the so-called dissolved air flotation system (DAF) acting as DAF circulation pump. This is a water treatment process, which clarifies wastewater by removing suspended solids such as oil or other solid matter. All of these hydraulic machines fulfill the most stringent customer requirements in terms of efficiency, long lifetimes, ease of maintenance, and cost-effectiveness. Furthermore, the high efficiencies help to conserve valuable resources. Due to its repeated contact with the aggressive seawater or salt water, the choice of material for the pump and also the centrifuge material is a crucial factor in an efficient desalination process. This is why Andritz is manufacturing the pumps from a special material: Duplex stainless steel. The structure of this steel is highly resistant to corrosion fatigue, energy absorption, erosion, and abrasion, as well as showing very little thermal expansion. However, the processing of duplex steel requires decades of experience and expertise. Duplex stainless steel. The structure of this steel is highly resistant to corrosion fatigue, energy absorption, erosion, and abrasion, as well as showing very little thermal expansion. www.andritz.com Read the full article
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Safeguarding every single drop - Andritz to supply pumps for a new drinking water plant in Tunisia
The water supply and the related risk of a water shortage is a critical topic in many countries in the Middle East and North Africa. This is also the case in Tunisia because the existing resources are being more and more impacted by shortages. Currently, agriculture in Tunisia accounts for almost 80 % of total water consumption, around 15 % is for drinking water, and the rest is for industry and tourism. However, the use of conventional water sources to cover the demand is already very intensive and is being depleted increasingly due to population growth, improved living standards, and climate factors. Taking account of the climatic and also other factors, current forecasts say that the resources available will be completely exhausted by around 2030 and will then gradually run dry. Effective management of these water resources by means of constant monitoring and control as well as reforms in the water sector are thus vital. Comprehensive strategy for irrigation and drinking water supply With this in mind, Tunisia has developed complex and diverse water infrastructures that enable the country to make better use of the sources available. At the same time, the government has introduced various regulations and laws in order to guarantee that the majority of the urban and rural population has better access to drinking water and to safeguard a sustainable supply for agricultural irrigation, industry, and tourism. In addition, the World Bank announced a 140-million US dollar project in May 2018 to support the Tunisian government in improving agricultural irrigation by managing scarcer water resources and new business opportunities, especially for underdeveloped rural areas. Irrigation alone requires around 80 percent of the country’s entire water potential. Among other things, the project will finance modernization of and repairs to the irrigation system in order to make it more effective and reliable. Similarly, the demand for drinking water in rural areas will rise to 60 million cubic meters per annum by 2030 according to current forecasts. As a result, the Tunisian President Youssef Chahed announced a new national strategy in June 2018 to conserve water resources. The goal is to safeguard water supplies by building dams and inland lakes, and by drilling boreholes as well as implementing some deep-sea projects.
Andritz was awarded the order to supply nine double-flow axial split-case pumps from the ASP series to the new drinking water plant on Cap Bon, Tunesia. They are the ideal hydraulic machines for use as piped water pumps in water treatment or drinking water pumps in water supply systems. New pumping plant on Cap Bon The Société Nationale d'Exploitation et de Distribution des Eaux (SONEDE) is responsible for the water supply in both urban and rural areas of Tunisia. This national water supply authority is a public institution, but also an autonomous one, attached to the Ministry of Agriculture. It was established in 1968 and is responsible for production, including water treatment and transport, management and maintenance of the drinking water network as well as development of the water sector. As part of the national strategy to safeguard a sustainable water supply, SONEDE is building a new pumping station on the Cap Bon peninsula. The Medjerda River will supply water to this plant. With a length of 450 kilometers, this is not only the longest river in Tunisia, it also feeds more than half of the water supply network throughout the country. The plant treats 150 cubic meters of river water per day for drinking water and distributes it in the Nabeul, Hammamet, Korba, Kelibia and Menzel Temime regions. Pumps play an essential role in this supply process. As a result of having the best price-performance offer, highest efficiencies and good relations with EPC Socoopec, Andritz was awarded the order to supply the pumps for the station. The international technology Group will manufacture and supply a total of nine double-flow axial split-case pumps from the ASP series. The pumps expert for drinking water supplies
Pumping systems from Andritz make an essential contribution worldwide towards a safe, sustainable and, above all, technologically optimized water supply. The mega-city of Peking also trusts in this technology and quality. Hui Nan Zhuang pumping station located to the south-west of the Chinese capital is equipped with eight double-flow axial split-case Andritz pumps. Pumping systems from Andritz make an essential contribution worldwide towards a safe, sustainable and, above all, technologically optimized water supply. The mega-city of Peking also trusts in this technology and quality. Hui Nan Zhuang pumping station located to the south-west of the Chinese capital is equipped with eight double-flow axial split-case Andritz pumps. Two sets of three pumps plus one standby unit each supply a common pipe with a diameter of four meters. Hui Nan Zhuang is the only pumping station in the middle water supply channel of the Chinese milestone project "South-to-North Water Diversion", with a total length in the region of 1,200 kilometers. The pumps supplied by Andritz convey a total of 60 cubic meters of water per second over a distance of approximately 60 kilometers to Peking. Nine smaller pumps of this same type will also be used in the new drinking water plant on Cap Bon. They are the ideal hydraulic machines for use as piped water pumps in water treatment or drinking water pumps in water supply systems. Depending on the final location of the Tunisian pumping station, it will handle a flow rate of 648 to 900 m³/h at heads of 20 to 63 meters. For this purpose, each pump is fitted with a 55, 160 or 200 kilowatt motor. With an efficiency of up to 91 percent, these double-flow split-case pumps help to save valuable energy. All of the pumps are equipped with a twin-flow radial impeller that achieves very favorable NPSH levels. Thanks to the axial split-case design, maintenance work is quick and easy. Equipped with a double-flow radial impeller and an inline casing, the pump can be installed horizontally or vertically. If mounted horizontally, the motor(s) can be positioned on the left and/or on the right. Besides design and delivery of the pumps and spare parts, installation and commissioning work on site will also be supervised by Andritz personnel. Completion of the entire project is scheduled for June 2019. Equipped for the future In addition, the pump casing already has the connections needed for intelligent sensors to monitor operating reliability and performance as well as other key indicators in line with Industry 4.0. These special pump monitoring packages that can also be retrofitted compare operating conditions against the nominal curves. These include variable speed curves such as head, efficiency, motor rating or NPSH in relation to flow rates. In addition, temperature, vibration and electrical analyses are conducted. All data can be analysed in the software or exported to various file formats. The files are stored in an Andritz Metris data base that can be installed on a local server or remotely in the Andritz Metris Cloud (Microsoft Azure). Based on these data gathered, accessible by the customer and by Andritz condition monitoring experts, service recommendations can be provided at any time for operation of the plant and the pumps installed. By standardizing data acquisition with these tools, the customer’s experts can also communicate more effectively with Andritz and improve plant performance at the same time. By networking our customers’ own specialists, also with Andritz experts, our IIoT technologies become the basis for Internet-of-People (IoP) solutions. This value-adding connection results not only in professional processing of the data gathered, which improve and maintain the performance of the plant, but make it possible in addition to respond and react even better to climatic and other factors that have an adverse effect on the water supply. [email protected] www.andritz.com/pumps Andritz Group Andritz is an international technology group providing plants, systems, equipment, and services for various industries. The company is one of the technology and global market leaders in the hydropower business, the pulp and paper industry, the metal working and steel industries, and in solid/liquid separation in the municipal and industrial segments. Other important fields of business are animal feed and biomass pelleting, as well as automation, where Andritz offers a wide range of innovative products and services in the IIoT (Industrial Internet of Things) sector under the brand name of Metris. In addition, the company is active in power generation (steam boiler plants, biomass power plants, recovery boilers, and gasification plants) and environmental technology (flue gas and exhaust gas cleaning plants) and offers equipment for the production of nonwovens, dissolving pulp, and panelboard, as well as recycling plants. Andritz stands for passion, partnership, perspectives and versatility – core values to which the company is committed. The listed Group is headquartered in Graz, Austria. With almost 170 years of experience, 29,000 employees, and more than 280 locations in over 40 countries worldwide, Andritz is a reliable and competent partner and helps its customers to achieve their corporate and sustainability goals. Read the full article
Green pump technology against the drought - Energy-efficient pumps for Jordan
Covered to 92 percent by deserts and desert-like landscapes, Jordan is the fourth-driest country in the world. Due to these geographical conditions, water scarcity has become a permanent, natural state. While the available capacity of renewable water resources in the region was 1,857 cubic meters in 1967, today it is less than 566 cubic meters. The value continues to fall and it is even expected to drop to 90 cubic meters by 2025. This is already significantly below the generally accepted limit of 500 cubic meters of water per person per year. In addition to geographical and climatic conditions, population growth is another key factor. Over the past five decades, the number of people living in Jordan has quadrupled and is expected to continue to grow at a similar speed. Reorientation of water management As early as the mid-1990s, a strong awareness of the impending water crisis developed in Jordan. Consequently, a reorientation of water management began with the aim of reducing agricultural consumption while improving urban supply. The current water resources in Jordan are divided into four areas according to consumption: agriculture, urban utilities, industry and tourism. The largest consumer is the agricultural sector with about 60 percent, while 36 percent are urban, four percent industry, and less than one percent tourism. The sustainable optimization of water supply has become a long-term project through its adoption into the Kingdom's national strategy and agendas. The implementation of the "Water Sector Capital Investment Plan 2016 - 2025" is currently underway. The objectives of this initiative are to secure and improve water supply, develop new water resources to increase capacity, and expand wastewater services. For this, the partly inadequate distribution systems are extensively renovated and modernized. This will form the technical basis for a more comprehensive and sustainable management of water resources in the future in order to meet the needs of a growing population over the next ten years. An essential part of creating a sustainable water management is the reduction of energy consumption by the water sector. Currently, the Jordanian system requires about 15 percent of the energy produced. This corresponds to about 2,000 GWh per year. A major part of this is can be attributed to the pumping of water. This inefficiency not only results in high costs, but also in increased CO2 emissions. Based on a joint study with the German Association for International Cooperation, it was found that the annual energy-saving potential of 25 pumping stations would amount to 42 GWh per year. This would not only mean a reduction of up to 33 percent, but also a reduction in CO2 emissions to over 30,000 tons a year. For the implementation of the results of the study, five pumping stations were selected as pilots for the period 2016-2020. Optimization of the pilot basis
In the Wala and Lib pumping stations, in addition to the multi-stage, axial split case pumps also ANDRITZ high pressure pumps from the HP43 series are installed. Due to their high efficiency, they have a strictly ecological orientation. These include, among others, the pumping stations Wala and Lib near Madaba. Built in the 1990s, the two facilities supply 184,000 people in the city and the surrounding area from the Madaba Reservoir. While Wala transports 1,500 cubic meters of water per hour to Madaba over a distance of 2.6 kilometres, Lib delivers 1,500 cubic meters over a distance of 17 kilometres. In 2015, these two plants were selected as pilots for the installation of new energy-efficient pumping systems, as they have a common supply source and a controllable distribution system with Heedan Well field. For this purpose, the previous five pumps in each station were replaced by four newer models and a monitoring and control system was installed. In 2017, the demand of water supply in the capital city Amman increased rapidly due to population growth. Therefore, the Jordan Water Company (Miyahuna) and Water Authority decided to get more water from Heedan Well field to reduce the shortage in demand for Amman. In 2018, this idea was put into action and six new high efficiency pumps were installed to increase the total flow of the pump station Lib to 2,500 cubic meters per hour. These high-efficient pumps were selected from the international technology group Andritz and have achieved very good results since being put into operation. The new system should deliver energy savings of up to 20 percent and savings of 313,000 Jordanian dinars, which corresponds to roughly 440,000 US dollars. The pump expert For over 165 years, Andritz has been a byword for designing and manufacturing customized pump solutions at the highest technological levels. The high standard of Andritz pumps is based on decades of experience in designing hydraulic machines and extensive know-how. They offer robustness and wear resistance, and fulfil highest customer expectations in terms of efficiency, life cycle, maintenance friendliness, and economic efficiency. In the interests of our customers, we set no limits on size and flow rate in the development and manufacture of customer-specific pumps. Against this background as well as the more energy-efficient pumps and a worldwide reference portfolio, Andritz has been awarded the contract to refurbish the two stations with a total of 12 pumps by the end of 2018. These include six high-pressure pumps from the HP43 series and six multi-stage, axially split case pumps from the ASPM series. Energy-efficient pump technology
The Andritz multi-stage, axial split case pumps is a highly engineered pump designed to customers’ specific requirements. Its multi-stage impeller arrangement that can be combined in different ways to fulfil different application needs. The Andritz multi-stage, axial split case pumps is a highly engineered pump designed to customers’ specific requirements. Its multi-stage impeller arrangement that can be combined in different ways to fulfil different application needs. In addition, the machine is calculated and designed to withstand all load cases which might occur during the lifetime of the pump. Peak outputs of up to 40 MW, flow rates of up to 10 cubic meters per second and a cost-effective construction using barrel casings make this technology particularly effective. The axial split design is maintenance-friendliness even at high heads of up to 1000 meters. Thanks to the excellent efficiency, which is above the industry average, and the speed-variable drive, this series is characterized by its low energy consumption. In the Wala and Lib pumping stations, in addition to the multi-stage, axial split case pumps also Andritz high pressure pumps from the HP43 series are installed. Due to their high efficiency, they have a strictly ecological orientation. These pumps save a tremendous amount of energy, which pays for the investment within a short timeframe. Behind this technology are many years of product experience, a globally operating technology network, and use of the very latest simulation and test stand technology. The modular machine can be gradually expanded as needed. It is offered in both horizontal and vertical design. Suction and discharge nozzles can be arranged variably depending on the intended use. With nominal sizes of 40 to 200 millimetres, in the first expansion stage, it reaches delivery rates of up to 850 cubic meters per hour at up to 40 bar discharge pressure. In the second stage even up to 63 bar. “The exceptionally high efficiency, quality and best lead time were among others the main factors for us and our pumps being chosen over the previous supplier. We are more than happy and proud to support Jordan with our hydraulic machines in these pumping stations. We are, however, keen to take on and solve further challenges to support the overall development of a sustainable and energy-efficient water supply and management system in the Kingdom,” states Muhammad Abou Daoud, responsible sales manager for Middle East. www.andritz.com Read the full article
Andritz to supply special pumps for water infrastructure project in China
Four two-stage vertical pumps for water transport will be supplied by Andritz as part of the Shanxi Xiaolangdi Yellow River Diversion Project in China. With two reservoirs, several tunnels, underground canals, pumping stations, pipelines, and aqueducts, the project is designed to handle and transport 247 million cubic meters of water annually. 116 million cubic meters are for irrigation, 116 million cubic meters for industrial and urban water supply, and 15 million cubic meters for ecological use. As there is a water shortage in northern China, the Shanxi Xiaolangdi Yellow River Diversion project will extend the existing water supply systems. Water from the Yellow River will be transported through a six-kilometer tunnel to an underground pumping station where it will be pumped over a distance of approximately 60 kilometers by four Andritz two-stage vertical pumps into an artificial lake in the northwestern part of Shanxi Province. Each of these pumps will achieve a flow rate of five cubic meters per second over a head of 236 meters and operate with an efficiency of over 91 percent. As the Yellow River transports large quantities of sand, the pumps have a special abrasion-resistant coating. Andritz has already contributed towards other large-scale infrastructure projects in China in the past. At the Hui Nan Zhuang Station, for example, eight Andritz horizontal double-flow split-case pumps supply drinking water to Beijing, the Chinese capital, over a distance of 60 kilometers. Another 11 Andritz pumps of the same type operate in two stations that convey 200,000 cubic meters of water per hour from the Yellow River to the city of Hohhot, the capital of the autonomous region Inner Mongolia. Read the full article