Lewa project in the Persian Gulf
WEG supplies pump drive for gas extraction
Pump manufacturer Lewa and drive specialist WEG are cooperating on a gas production project in Saudi Arabia. WEG is developing a drive train solution for 20 LEWA pumps that is particularly suitable for harsh environments on offshore platforms.
WEG was selected by LEWA GmbH from Germany as a cooperation partner for a new project in Saudi Arabia. Back in 2013, Lewa, a manufacturer of metering and process diaphragm pumps as well as complete metering systems for process engineering, supplied 40 pumps for a gas production plant in the Persian Gulf to develop new gas fields. For the follow-up order, 20 more pumps are now to be delivered to Saudi Arabia by 2019 in order to increase the current production volume of around 70 million cubic meters of gas by a further 56 million cubic meters per day.
The increase in gas production volume is intended to help convert the country's energy supply from oil to gas in the long term and thus make more crude oil available for the global market. To ensure that the pumps run smoothly, Lewa turned to WEG with the task of developing a drive train solution that is particularly suitable for installation on the offshore platforms of the gas production facilities.
Pumps for two large offshore platforms
For the total of eight LGB2 boxer pumps and a further twelve LDH5 process pumps from Lewa that are to be supplied to two large offshore platforms in the Persian Gulf, WEG designed a customized drive train solution that meets the special requirements of the project. The complete solution, which is suitable for offshore use, includes both W22 Ex nA (Non-Sparking) motors in energy efficiency class IE3 with 150 kilowatts and 185 kilowatts as well as complete AFW11 control cabinet systems with integrated CFW11 frequency inverters.
"The solution, which was developed specifically for the application, was completed smoothly by all parties involved and delivered on time. Overall, the project has been very satisfactory for all parties so far. It is due to be handed over to the client in 2019," explains Klaus Figgle, Engineering Project Manager at Lewa.
For the complete solution, WEG equipped the IE3 energy efficiency class motors with important functions for the project in accordance with the IEEE841 standard, including terminal boxes for special accessories, provisions for vibration detectors and insulated bearings without drive ends. Stainless steel fixing screws and a special paint finish are also included.
Another highlight of the solution is the WHF (WEG Harmonic Filter), which meets the requirements of the IEEE519 recommendations. Furthermore, the panels are made of SS316 stainless steel, making them suitable for applications in particularly aggressive environments even without a special protective coating. To reduce the noise caused by the long cable length between the frequency inverter and the motor, WEG also installed a filter on the frequency inverter. This ensures longer insulation of the electric motor and also reduces possible bearing currents. as
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