Controlling Vibrations Wherever They Occur
Machinery and equipment in power generation and metal forming plants now employ an active vibration isolation system (source isolation), to reduce foundation size and cost.
Elastic Support and Damping Solutions for Power Plant Equipment
Rua da Paz, 1741 – Chacara Santo Antonio,
04713-002,
Sao Paulo SP,
Brazil
The GERB Group designs, manufactures and supplies vibration control systems based on helical steel springs and viscous fluid dampers, which are combined in a number of ways for different purposes such as: protection of structures and pipework against fatigue, dynamic overloading and even seismic events.
This is in addition to protection of foundations against settlements and overloading, expressive cost savings in the installation of heavy equipment, environmental protection and workspace comfort, service life extension and maintenance reduction of all types of machinery, as well as vibration isolation of sensitive equipment.
The application range of our technology is as wide as the industrial activities themselves, such as metalworking plants, mining activities, offshore operations, chemical facilities and particularly power plants.
Related services such as vibration measurements and forecasts, concept design of foundations and substructures, design aid of pipework systems, installation and construction site supervision, complete the package offered by GERB, allowing for low-cost constructions and safer operation of high-value facilities.
The elastic support system for turbine generator foundations has been widely adopted during the past 30 years by the industry. The GERB system, jointly developed with leading turbine manufacturers, is presently used for turbines with capacities up to 1,300MW worldwide.
Leading manufacturers of turbines and other power plant equipment using the GERB system have the following advantages:
Large conventional gas turbine foundations are prone to problems, especially on bad subsoil, which may lead to operational issues and additional stresses in the foundations. Their elastic support on GERB spring elements will prevent this. Subsequent alignment of the system on spring level without touching the machine is easy and simple, in many cases it is possible even while the gas turbine is running.
The GERB spring system can also protect the gas turbine against earthquakes, if combined with Viscodampers®. Effective vibration controls for gas turbines is also necessary on power barges.
GERB Pipework dampers were specifically developed to protect piping systems in power plants, which are normally very flexible so can be vulnerable to various types of abrasion. These elements provide many advantages compared with other dynamic restraints, such as:
GERB provides dynamic uncoupling of the fans foundation from the soil by means of spring units equipped with high quality, fatigue free coil springs and non-ageing Viscodampers®, with the following advantages:
On gas or diesel fuelled power plants, uncoupling generators and compressors from the substructure through GERB spring elements and Viscodampers®, as well as an excellent solution to vibration and structure-borne noise problems, provide the following advantages:
Boiler feed pumps are basic power plant equipment. If elevated, and not sitting on ground level, the use of GERB systems makes it simple and safe to integrate the pump substructure into the structure of the turbine building, resulting in a highly practical and economical building.
These machines are commonly found in power plants using solid fuels, such as coal or agricultural residues. They often require heavy foundations or strong substructures to resist high dynamic loads.
By installing these machines with the GERB systems, the need for heavy foundations and substructures is reduced; machine components such as bearings have their life extended, as well as the machine availability with maintenance is consequently reduced.
In the previous sections some of the most common applications of GERB solutions for power plants were summarised. Although regardless of what the equipment may be, GERB has the solution. We have proven throughout our 100 year company history that vibrations can be controlled wherever they arise.
GERB do Brasil Ltda, the Brazilian branch of the group with its engineering office and factory located in Sao Paulo, was established in 1992 and today supplies all of Latin America with GERB solutions for every vibration need.
Please contact us. We will be glad to help.
Machinery and equipment in power generation and metal forming plants now employ an active vibration isolation system (source isolation), to reduce foundation size and cost.
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El Romero is a 246MW photovoltaic (PV) solar power plant being developed in the Vallenar municipality in the Atacama Desert, Chile.
Rua da Paz, 1741 – Chacara Santo Antonio
04713-002
Sao Paulo SP
Brazil