Andritz’s submersible motor expertise success

In one of the world’s largest oil and gas 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 gas is a key ingredient in just about 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 elements. First, the cost competitiveness of gas in contrast to different power sources. Secondly, higher security of supply with regard to infrastructure, supply, and flexible use. Thirdly, gas represents a sustainable form of energy that can mitigate local weather change and lower localized air 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 should be extracted using a sustainable course of. One of the most important techniques is the Åsgard oil and fuel subject on the Haltenbanken, 200 km off the coast of Norway. It contains fifty two wells mixed in sixteen fuel fields and related by 300 km of oil pipelines. As of December 2018, the sphere has estimated resources of 9.9 million normal cubic meters of oil equivalent of oil and fifty one.1 million commonplace cubic meters of oil equivalent of gasoline.
The system used comprises three important areas: Åsgard A, B, and C. Åsgard A is a floating oil manufacturing vessel that has been anchored there permanently since extraction began in 1999. Åsgard B is a floating, semi-submersible fuel 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 advanced to the north of Stavanger, Norway.
First on the planet Aker Solutions ASA has been supporting the Åsgard gasoline subject with numerous fuel field products, systems, and providers 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 improve 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 recovery rates are improved and the investment and working costs are lowered. In addition, underwater compression leaves a smaller ecological footprint and is more reliable than a platform. nuova fima pressure gauge ราคา 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, turned ANDRITZ Ritz GmbH and a half of the ANDRITZ Group, as did the production of submersible motors. เกจวัดแรงดันpressuregauge to the renewable winding, ANDRITZ submersible motors are appropriate for driving deep nicely pumps, backside consumption pumps, suction pumps, seawater pumps, and underwater equipment.
Depending on the realm of software, the motors can be manufactured from forged iron, bronze or totally different kind 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 particular cooling know-how. In designs with inside permanent magnet motor expertise, or IPM for short, 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 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 lower shaft end of the rotor. One of its two major tasks is cooling and lubricating the close by thrust bearing. By doing so, the impeller ensures there is a constant flow of cooling liquid in the proper path.
This liquid strikes via the inside of the motor from the underside to the highest. The specially developed cooling channels outline the precise path over all heat sources to discharge the warmth successfully and systematically. At the top finish, the heat from the liquid is then discharged through the motor’s outer wall. Here, it is transferred via the floor 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’re additionally an especially necessary half. The whole underwater station can’t function without these motors to drive the pumps. Since first being installed 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 those liquids which might be removed by the separator upstream of the gas compressors.
In 2017, as a end result of a failure in a part of the system which was not supplied by ANDRITZ, the motor was sent in for repairs, during which an intensive examine was carried out. Thermal distribution in the cooling circulate and the hot spots had been analyzed in additional element. The outcomes also led to the design of a new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was also completely overhauled and fitted with a new winding and a brand new rotor. This examine and the implementation of its findings not solely profit the current customer and future clients on this case, but also strengthen confidence within the ANDRITZ submersible motor technology.

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