Andritz’s submersible motor expertise success

In one of the world’s largest oil and gasoline fields, the firstever underwater compressor system employs ANDRITZ submersible motors. With their renewable winding these maintenance-free designed pumps have achieved spectacular outcomes.
We are surrounded by fuel. From water bottles to the insulation in our properties, pure fuel 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 global demand in fuel has been rising by 35% of the previous decade alone.
The causes for this pattern are manifold, however the IGU determines three main elements. First, the fee competitiveness of fuel in distinction to different energy sources. Secondly, greater safety of supply with regard to infrastructure, supply, and versatile use. Thirdly, gas represents a sustainable form of power that can mitigate local weather change and decrease localized air pollution. It has 50% fewer CO2 emissions in comparison with coal, for example.
In order to meet this rising demand and use, the eco-friendly potential fuel will have to be extracted using a sustainable course of. One of the biggest techniques is the Åsgard oil and gasoline area on the Haltenbanken, 200 km off the coast of Norway. It incorporates 52 wells combined in sixteen gasoline fields and linked by 300 km of oil pipelines. As of December 2018, the sphere has estimated sources of 9.9 million commonplace cubic meters of oil equal of oil and fifty one.1 million commonplace cubic meters of oil equal of gasoline.
The system used contains three important areas: Åsgard A, B, and C. Åsgard A is a floating oil production vessel that has been anchored there permanently since extraction started in 1999. Åsgard B is a floating, semi-submersible gasoline 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 gasoline pipeline to the Karsto processing advanced to the north of Stavanger, Norway.
First in the world Aker Solutions ASA has been supporting the Åsgard fuel field with varied gas subject merchandise, techniques, and companies since 2010. In time, the stress in the storage facility in gas-producing fields drops. Compressors are needed to sustain the output. Aker delivered the first-ever underwater compressor system worldwide to Åsgard so as to increase the output to 306 million barrels. These are usually put in on platforms above sea stage.
However, Åsgard is based on an underwater system. By using compressors on the seabed the recovery rates are improved and the investment and working prices are lowered. In addition, underwater compression leaves a smaller ecological footprint and is more dependable than a platform. The Åsgard system consists of modules for 2 similar sets of compressors, pumps, scrubbers, and coolers. The motors needed to drive the pumps come from ANDRITZ.
Small, however important
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, grew to become ANDRITZ Ritz GmbH and a half 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 intake pumps, suction pumps, seawater pumps, and underwater equipment.
Depending on the realm of software, the motors could be manufactured from forged iron, bronze or different type of stainless steel and installed 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 particular cooling technology. In designs with interior everlasting magnet motor expertise, or IPM for short, these maintenance-free motors can obtain impressive outputs, efficiencies and, as a result, value savings.
The efficient and measurable motor cooling system keeps the inside temp- erature as little as potential. Drinking water is used as a cooling liquid, which is why the motors can operate in media of up to 75° C. An impeller with optimized suction and supply is mounted at the decrease shaft finish of the rotor. One of its two major duties is cooling and lubricating the close by thrust bearing. By doing so, the impeller ensures there is a fixed move of cooling liquid in the best path.
This liquid moves through the within 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 heat effectively and systematically. At the highest end, the warmth from the liquid is then discharged through the motor’s outer wall. Here, เกจแรงดันลม is transferred via the surface of the motor to the medium to be pumped.
The ANDRITZ submersible motors are just a tiny part of the underwater compressor system, but they are also a particularly important part. The entire underwater station can not operate without these motors to drive the pumps. Since first being put in in 2016, these submersible motors have been operating with none 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 these liquids which are eliminated by the separator upstream of the gas compressors.
In 2017, due to a failure in part of the system which was not provided by ANDRITZ, the motor was sent in for repairs, throughout which an in depth research was performed. Thermal distribution within the cooling move and the recent spots have been analyzed in additional element. The results also led to the design of a brand new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also completely overhauled and fitted with a brand new winding and a new rotor. This examine and the implementation of its findings not only profit the current buyer and future clients in this case, but additionally strengthen confidence within the ANDRITZ submersible motor know-how.

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