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.
เกจวัดแก๊สlpg are surrounded by fuel. From water bottles to the insulation in our properties, pure gas is a key ingredient in just about every product we use every day. 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 previous decade alone.
The causes for this development are manifold, but the IGU determines three primary components. First, the cost competitiveness of fuel in distinction to different power sources. Secondly, larger security of supply with regard to infrastructure, delivery, and versatile use. Thirdly, gasoline represents a sustainable form of power that may mitigate local weather change and lower localized air pollution. It has 50% fewer CO2 emissions compared to coal, for example.
In order to meet this rising demand and use, the eco-friendly potential gasoline must be extracted using a sustainable process. One of the biggest methods is the Åsgard oil and gasoline area on the Haltenbanken, 200 km off the coast of Norway. It contains 52 wells mixed in 16 gasoline fields and connected by 300 km of oil pipelines. As of December 2018, the sector has estimated sources of 9.9 million commonplace cubic meters of oil equivalent of oil and fifty one.1 million normal cubic meters of oil equivalent of fuel.
The system used includes three essential areas: Åsgard A, B, and C. Åsgard A is a floating oil production vessel that has been anchored there completely since extraction began in 1999. เกจวัดแรงดันน้ำประปา is a floating, semi-submersible gas and condensate processing platform for processing and stabilizing of gas and condensate. This platform is supplemented by the condensate storage facility Åsgard C and the 707 km-long Åsgard fuel pipeline to the Karsto processing complicated to the north of Stavanger, Norway.
First on the planet Aker Solutions ASA has been supporting the Åsgard fuel field with various gasoline subject products, techniques, and services since 2010. In time, the pressure in 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 in order to increase the output to 306 million barrels. These are normally put in on platforms above sea stage.
However, Åsgard is predicated on an underwater system. By using compressors on the seabed the restoration charges are improved and the funding and operating prices are reduced. In addition, underwater compression leaves a smaller ecological footprint and is more reliable than a platform. The Åsgard system consists of modules for 2 identical sets of compressors, pumps, scrubbers, and coolers. The motors wanted to drive the pumps come from ANDRITZ.
Small, but essential
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, turned ANDRITZ Ritz GmbH and part of the ANDRITZ Group, as did the manufacturing of submersible motors. Due to the renewable winding, ANDRITZ submersible motors are appropriate for driving deep nicely pumps, bottom consumption pumps, suction pumps, seawater pumps, and underwater machinery.
Depending on the area of application, the motors may be made from cast iron, bronze or completely different sort of stainless-steel and put in either 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 special cooling expertise. In designs with inside everlasting magnet motor technology, or IPM for brief, these maintenance-free motors can achieve impressive outputs, efficiencies and, as a result, price financial savings.
The effective and measurable motor cooling system retains the interior temp- erature as low as potential. Drinking water is used as a cooling liquid, which is why the motors can function in media of as much as 75° C. An impeller with optimized suction and delivery is mounted on the decrease shaft finish of the rotor. One of its two major tasks is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there’s a fixed move of cooling liquid in the right path.
This liquid strikes through the inside of the motor from the bottom to the top. The specifically developed cooling channels define the precise path over all heat sources to discharge the warmth effectively and systematically. At the top end, the heat from the liquid is then discharged via the motor’s outer wall. Here, it’s transferred via the floor of the motor to the medium to be pumped.
The ANDRITZ submersible motors are only a tiny part of the underwater compressor system, however they’re additionally an especially important half. The entire underwater station can’t function without these motors to drive the pumps. Since first being put in 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 varieties the condensate unit along with the pump and conveys these liquids that are eliminated by the separator upstream of the fuel compressors.
In 2017, because of a failure in part of the system which was not supplied by ANDRITZ, the motor was sent in for repairs, throughout which an extensive examine was conducted. Thermal distribution in the cooling move and the hot spots had been analyzed in additional element. The results additionally led to the design of a brand new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also fully overhauled and fitted with a new winding and a brand new rotor. This research and the implementation of its findings not solely profit the present customer and future clients on this case, but also strengthen confidence within the ANDRITZ submersible motor technology.

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