Andritz’s submersible motor technology success

In one of many 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 gas. From water bottles to the insulation in our homes, natural gasoline is a key ingredient in nearly 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 reasons for this pattern are manifold, however the IGU determines three main components. First, the price competitiveness of gas in distinction to different vitality sources. Secondly, higher security of supply with regard to infrastructure, delivery, and flexible use. Thirdly, เกจวัดแรงดันน้ำไทวัสดุ represents a sustainable type of vitality that can mitigate climate change and lower localized pollution. It has 50% fewer CO2 emissions compared to coal, for instance.
In order to fulfill this growing demand and use, the eco-friendly potential gasoline will have to be extracted using a sustainable course of. One of the largest techniques is the Åsgard oil and gas field on the Haltenbanken, 200 km off the coast of Norway. It contains 52 wells combined in sixteen fuel fields and connected by 300 km of oil pipelines. As of December 2018, the field has estimated resources of 9.9 million commonplace cubic meters of oil equal of oil and fifty one.1 million normal cubic meters of oil equal of gasoline.
เครื่องมือที่ใช้ในการวัดความดัน used includes three important areas: Åsgard A, B, and C. Åsgard A is a floating oil manufacturing vessel that has been anchored there completely since extraction started in 1999. Åsgard B is a floating, semi-submersible gas 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 fuel pipeline to the Karsto processing advanced to the north of Stavanger, Norway.
First in the world Aker Solutions ASA has been supporting the Åsgard gasoline subject with varied gasoline field products, methods, and providers since 2010. In time, the stress 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 so as to increase the output to 306 million barrels. These are normally put in on platforms above sea level.
However, Åsgard is based on an underwater system. By using compressors on the seabed the recovery rates are improved and the funding and operating prices are decreased. In addition, underwater compression leaves a smaller ecological footprint and is extra dependable than a platform. The Åsgard system consists of modules for two equivalent units of compressors, pumps, scrubbers, and coolers. The motors wanted to drive the pumps come from ANDRITZ.
Small, but important
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, grew to become ANDRITZ Ritz GmbH and a part 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 machinery.
Depending on the area of software, the motors can be made from cast iron, bronze or different sort of stainless-steel and put in 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 special cooling expertise. In designs with inside permanent magnet motor know-how, or IPM for brief, these maintenance-free motors can achieve spectacular outputs, efficiencies and, consequently, price financial savings.
The effective and measurable motor cooling system retains the interior temp- erature as little as attainable. Drinking water is used as a cooling liquid, which is why the motors can function in media of up to 75° C. An impeller with optimized suction and supply is mounted on the decrease shaft finish of the rotor. One of its two major duties is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there is a fixed move of cooling liquid in the right course.
This liquid strikes through the within of the motor from the bottom to the top. The specially developed cooling channels define the exact path over all heat sources to discharge the warmth successfully and systematically. At the highest finish, the warmth from the liquid is then discharged through 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 part of the underwater compressor system, but they are additionally an extremely important half. The whole underwater station cannot function without these motors to drive the pumps. Since first being put in in 2016, these submersible motors have been working with none faults. All in all, ANDRITZ Ritz delivered three twopole submersible motors with an output of 736 kw. The motor varieties the condensate unit together with the pump and conveys those liquids which are removed by the separator upstream of the gasoline 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 study was carried out. Thermal distribution in the cooling flow and the new spots had been analyzed in more element. The results additionally led to the design of a new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was additionally completely overhauled and fitted with a new winding and a new rotor. This examine and the implementation of its findings not solely benefit the current buyer and future prospects on this case, but in addition strengthen confidence in the ANDRITZ submersible motor technology.

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