Abstract:
Modular operating centers for use in electric power generating plants and other industrial and commercial plants, processes and systems are constructed by using a novel prefabricated modular technique. This technique includes loading a plurality of transportable room-size building modules with control system equipment at a factory site. Typically, the control system equipment includes sophisticated and complex electrical and electronics data processing and control equipment. The control system equipment is installed and bolted down in the different building modules and the equipment in each module is inter-wired at the factory site. Temporary inter-module connections are established between the control system equipment in different ones of the building modules and such equipment, as a whole, is then thoroughly tested and adjusted under simulated use conditions. Thereafter, the loaded and tested building modules are separated and separately transported to the industrial or commercial installation site. At the installation site, the building modules are joined together to form an integral weatherproof building structure and the inter-module control system equipment connections are re-established to provide a tested and substantially ready-to-go control center for the plant, process or system in question. A novel feature of this technique is that structural building modules are used as the shipping containers for transporting complex electrical and electronics equipment to the final installation site.
Abstract:
A lubricating oil system for an internal combustion prime mover having an oil pump driven by the prime mover shaft and an electrically driven oil pump arranged in series flow relation with the prime mover shaft bearings for pumping hot oil from the bearings through an oil cooler and into a main reservoir during normal operation. A drain tank is disposed between the bearings and the main reservoir and in communication with the reservoir above the normal oil level. During a ''''black start'''' when no power is available to drive the electrical pump and the oil cooler fan, the shaft driven pump is effective to pump cool oil from the main reservoir to the bearings and the thus-heated oil from the bearings to the drain tank without immediately returning the heated oil to the reservoir. Several ''''starts'''' are thus permitted before the oil in the main reservoir is heated by oil returning from the bearings and the drain tank.
Abstract:
A fuel pump system for a gas turbine of the type in which a main fuel pump is normally driven by an electric motor powered from an external electrical network. An auxiliary fuel pump is connected in a parallel hydraulic circuit arrangement with the main fuel pump and is activated by a battery-driven motor or driven by a mechanical starting device for the turbine when it becomes necessary to ''''black start'''' the turbine with no external source of electrical power available for the main fuel pump.