Electric actuators provide safety function at combined cycle gas power plant
- Industry:Conventional Thermal Power
- Category:Electric Actuators
- Prodotti:CVL, CVQ
概括
旋转installed and commissioned CVL linear control valve actuators at Didcot B is an efficient combined cycle gas power plant with a net capacity of 1,440 MW approx. power to meet the demands of one million households.
Overview
DIDCOT B发电站是一家合并的循环气体发电厂，自1997年以来一直向国家电网供电。
Challenge
Existing hydraulic actuators controlled the supply of the spray water that is used as an emergency quench in the condensers should the steam turbine trip. An emergency quench within a condenser reduces temperatures and controls gases and is as such a key safety function within a natural gas power plant. These hydraulic actuators needed to be updated to an electric solution as part of a wider modernisation project.
Solution
The choice of actuators from within the CVA range ensures highly accurate and responsive continuous modulation of control valves within the emergency quench system.
Further Information
Customer Benefits
This installation was part of a wider project at Didcot B to improve equipment reliability and obsolescence/future-proof planning.
The CVL actuators offer precise and reliable control in EX environments. They are also waterproof to IP68, which is essential for this application. The terminal compartment is sealed, vastly reducing the chance of water ingress.
The choice of Rotork for this essential part of the smooth running of the turbines at Didcot B Power Station shows the importance of effective, reliable actuation technology.
The CVL units replaced existing hydraulic actuators and now provide improved reliability and reduced maintenance costs.