Andritz’s submersible motor know-how success

In one of many 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 homes, pure gas is a key ingredient in nearly each product we use daily. According to the most recent report issued by the International Gas Union (IGU) in 2019, the global demand in gas has been rising by 35% of the previous decade alone.
The reasons for this pattern are manifold, but the IGU determines three major elements. First, the cost competitiveness of fuel in distinction to other energy sources. Secondly, larger safety of provide with regard to infrastructure, supply, and versatile use. Thirdly, fuel represents a sustainable form of vitality that can mitigate climate change and lower localized pollution. It has 50% fewer CO2 emissions in comparison with coal, for example.
In เกจวัดแรงดันลมคือ to meet this rising demand and use, the eco-friendly potential fuel will have to be extracted utilizing a sustainable process. One of the biggest systems is the Åsgard oil and fuel area on the Haltenbanken, 200 km off the coast of Norway. It contains fifty two wells combined in sixteen gas fields and connected by 300 km of oil pipelines. As of December 2018, the sector has estimated sources 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 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 began in 1999. Åsgard B is a floating, semi-submersible gasoline 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 complicated to the north of Stavanger, Norway.
First on the planet Aker Solutions ASA has been supporting the Åsgard gas area with varied gasoline area merchandise, systems, and services since 2010. In time, the strain within 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 to be able to enhance the output to 306 million barrels. These are normally installed on platforms above sea level.
However, Åsgard is based on an underwater system. By utilizing compressors on the seabed the restoration charges are improved and the funding and working prices are decreased. In addition, underwater compression leaves a smaller ecological footprint and is extra reliable 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, however essential
In 2010, Ritz Pumpenfabrik GmbH in Schwäbisch-Gmünd, Germany, became 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 nicely pumps, backside consumption pumps, suction pumps, seawater pumps, and underwater equipment.
Depending on the realm of application, the motors could be made of cast iron, bronze or 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 know-how. In designs with interior everlasting magnet motor expertise, or IPM for short, these maintenance-free motors can obtain impressive outputs, efficiencies and, consequently, value financial savings.
The efficient and measurable motor cooling system retains the interior temp- erature as low as attainable. Drinking ตัววัดแรงดันน้ำ is used as a cooling liquid, which is why the motors can operate in media of as a lot as 75° C. An impeller with optimized suction and delivery is mounted at the decrease shaft finish of the rotor. One of its two main tasks is cooling and lubricating the nearby thrust bearing. By doing so, the impeller ensures there is a fixed move of cooling liquid in the proper path.
This liquid moves through the within of the motor from the bottom to the top. The specially developed cooling channels define the precise path over all warmth sources to discharge the heat effectively and systematically. At the top end, the heat from the liquid is then discharged via 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 a part of the underwater compressor system, however they are additionally an especially necessary part. The entire underwater station cannot operate with out 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 types the condensate unit along with the pump and conveys those liquids which are eliminated by the separator upstream of the fuel 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 in depth research was conducted. Thermal distribution within the cooling circulate and the hot spots were analyzed in more detail. The outcomes also led to the design of a model new plate crosssection for the rotor plates.
Because of this, the motor to be repaired was additionally fully overhauled and fitted with a brand new winding and a brand new rotor. This research and the implementation of its findings not solely benefit the current customer and future customers on this case, but also strengthen confidence within the ANDRITZ submersible motor expertise.

Leave a Comment