Andritz’s submersible motor technology 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 impressive results.
We are surrounded by gasoline. From water bottles to the insulation in our houses, natural gas is a key ingredient in virtually each product we use daily. According to the newest report issued by the International Gas Union (IGU) in 2019, the worldwide demand in gasoline has been rising by 35% of the previous decade alone.
The causes for this pattern are manifold, but the IGU determines three primary factors. First, the cost competitiveness of gasoline in contrast to other power sources. Secondly, higher safety of supply with regard to infrastructure, supply, and versatile use. Thirdly, gasoline represents a sustainable form of vitality that may mitigate climate change and decrease localized air pollution. It has 50% fewer CO2 emissions in comparison with coal, for instance.
In order to satisfy this rising demand and use, the eco-friendly potential gas must be extracted using a sustainable process. pressure gauge ลม of the most important techniques is the Åsgard oil and gasoline subject on the Haltenbanken, 200 km off the coast of Norway. It contains 52 wells mixed in sixteen gas fields and linked by 300 km of oil pipelines. As of December 2018, the sector 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 equivalent of gasoline.
The system used includes three important areas: Åsgard A, B, and C. Åsgard A is a floating oil production 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 gasoline and condensate. This platform is supplemented by the condensate storage facility Åsgard C and the 707 km-long Åsgard gas pipeline to the Karsto processing advanced to the north of Stavanger, Norway.
First on the earth Aker Solutions ASA has been supporting the Åsgard gas field with various gas subject products, systems, and services since 2010. In time, the pressure within 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 in order 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 reduced. In addition, underwater compression leaves a smaller ecological footprint and is more dependable than a platform. The Åsgard system consists of modules for two similar units 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 suitable for driving deep properly pumps, bottom intake pumps, suction pumps, seawater pumps, and underwater machinery.
Depending on the area of application, the motors can be manufactured from cast iron, bronze or totally different type of chrome 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 special cooling know-how. In designs with inside permanent magnet motor know-how, or IPM for brief, these maintenance-free motors can obtain impressive outputs, efficiencies and, consequently, value financial savings.
The effective and measurable motor cooling system retains the interior temp- erature as low as attainable. 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 primary duties is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there is a fixed flow of cooling liquid in the right direction.
This liquid strikes by way of the within of the motor from the underside to the highest. The specifically developed cooling channels define the exact path over all heat sources to discharge the warmth effectively and systematically. At the top end, the heat from the liquid is then discharged through the motor’s outer wall. Here, it is transferred through the floor of the motor to the medium to be pumped.
เกจวัดแรงดันน้ำมันเบนซิน are just a tiny part of the underwater compressor system, however they are additionally a particularly necessary half. The complete underwater station cannot 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 together with the pump and conveys these liquids that are removed by the separator upstream of the gas compressors.
In 2017, because of a failure in part of the system which was not supplied by ANDRITZ, the motor was despatched in for repairs, during which an intensive examine was conducted. Thermal distribution within the cooling move and the recent spots had been analyzed in additional detail. The results also led to the design of a new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also utterly overhauled and fitted with a new winding and a new rotor. This research and the implementation of its findings not solely benefit the present customer and future customers in this case, but also strengthen confidence in the ANDRITZ submersible motor know-how.

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