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Andritz’s submersible motor expertise success

In one of the world’s largest oil and fuel fields, the firstever underwater compressor system employs ANDRITZ submersible motors. With their renewable winding these maintenance-free designed pumps have achieved spectacular results.
We are surrounded by gasoline. From water bottles to the insulation in our properties, pure gasoline is a key ingredient in nearly each product we use daily. According to the most recent report issued by the International Gas Union (IGU) in 2019, the worldwide demand in gas has been rising by 35% of the past decade alone.
The causes for this trend are manifold, but the IGU determines three primary factors. First, the fee competitiveness of gasoline in distinction to different vitality sources. Secondly, higher security of supply with regard to infrastructure, delivery, and flexible use. Thirdly, gas represents a sustainable form of power that can mitigate climate change and lower localized pollution. It has 50% fewer CO2 emissions in comparison with coal, for instance.
In เกจวัดแรงดัน to satisfy this rising demand and use, the eco-friendly potential gasoline will have to be extracted using a sustainable course of. One of the most important methods is the Åsgard oil and fuel area on the Haltenbanken, 200 km off the coast of Norway. It incorporates 52 wells combined in 16 gasoline fields and connected by 300 km of oil pipelines. As of December 2018, the field has estimated resources of 9.9 million standard cubic meters of oil equal of oil and 51.1 million commonplace cubic meters of oil equivalent of gas.
The system used contains three important areas: Åsgard A, B, and C. Åsgard A is a floating oil manufacturing vessel that has been anchored there permanently since extraction started in 1999. Åsgard B is a floating, semi-submersible fuel and condensate processing platform for processing and stabilizing of fuel and condensate. This platform is supplemented by the condensate storage facility Åsgard C and the 707 km-long Åsgard gasoline pipeline to the Karsto processing complex to the north of Stavanger, Norway.
First in the world Aker Solutions ASA has been supporting the Åsgard gasoline area with various fuel area merchandise, systems, and providers since 2010. In time, the strain within the storage facility in gas-producing fields drops. Compressors are wanted to sustain the output. Aker delivered the first-ever underwater compressor system worldwide to Åsgard so as to improve the output to 306 million barrels. These are usually put in on platforms above sea level.
However, Åsgard relies on an underwater system. By utilizing compressors on the seabed the restoration charges are improved and the investment and working prices are lowered. In addition, underwater compression leaves a smaller ecological footprint and is extra reliable than a platform. The Åsgard system consists of modules for two similar units of compressors, pumps, scrubbers, and coolers. The motors needed to drive the pumps come from ANDRITZ.
Small, but essential
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, became ANDRITZ Ritz GmbH and a half of the ANDRITZ Group, as did the production of submersible motors. Due to the renewable winding, ANDRITZ submersible motors are appropriate for driving deep well pumps, bottom intake pumps, suction pumps, seawater pumps, and underwater equipment.
Depending on the realm of application, the motors may be made of cast iron, bronze or totally different type of chrome steel and installed both vertically or horizontally. These are water-filled and watercooled, three-phase asynchronous motors with squirrel cages and a mech- anical seal. They are fitted with MCT, a particular cooling technology. In designs with inside permanent magnet motor technology, or IPM for brief, these maintenance-free motors can obtain impressive outputs, efficiencies and, consequently, price financial savings.
The efficient and measurable motor cooling system retains the inside temp- erature as low as potential. Drinking water is used as a cooling liquid, which is why the motors can operate in media of as much as 75° C. An impeller with optimized suction and supply is mounted on the decrease shaft end of the rotor. เพรสเชอร์เกจ of its two major duties is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there’s a fixed flow of cooling liquid in the proper course.
This liquid moves by way of the inside of the motor from the bottom to the top. The specifically developed cooling channels define the exact path over all warmth sources to discharge the warmth successfully and systematically. At the top end, the warmth from the liquid is then discharged via the motor’s outer wall. Here, it is transferred through the surface of the motor to the medium to be pumped.
The ANDRITZ submersible motors are only a tiny a part of the underwater compressor system, but they are also an especially important part. The entire underwater station cannot operate without these motors to drive the pumps. Since first being installed in 2016, these submersible motors have been working without any faults. All in all, ANDRITZ Ritz delivered three twopole submersible motors with an output of 736 kw. The motor types the condensate unit along with the pump and conveys those liquids which are removed by the separator upstream of the fuel compressors.
In 2017, due to a failure in a part of the system which was not provided by ANDRITZ, the motor was sent in for repairs, during which an in depth research was carried out. Thermal distribution within the cooling flow and the hot spots had been analyzed in additional detail. The outcomes additionally led to the design of a brand new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was additionally fully overhauled and fitted with a new winding and a model new rotor. This research and the implementation of its findings not only benefit the current customer and future clients on this case, but additionally strengthen confidence in the ANDRITZ submersible motor technology.
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