Gas turbine generator plant

Abstract

The present invention relates to a gas turbine generator plant in which, by forming auxiliary equipment, comprising a starter, a lubricating oil device, a control oil device, and a lubricating oil main tank, into a unit, this may be disposed within a building in a unitary manner with a generator and a gas turbine unit. The gas turbine generator plant of the present invention is provided with a generator, a gas turbine unit, and auxiliary equipment, comprising a starter, a lubricating oil device, a control oil device, and a lubricating oil tank; the auxiliary equipment is made unitary, and this unitary auxiliary equipment, the generator, and the gas turbine unit are disposed in that order within a building. By means of this, the installed floor area of the plant is dramatically reduced, and it is also possible to reduce construction costs. Furthermore, the unitary auxiliary equipment can be transported together, so that it is possible to limit all at once the occurrence of rust in auxiliary equipment resulting from salt during transport by sea, if a cover is attached, and the packing is also high-density, so that transportation costs may be reduced. Furthermore, there are also few installation points, so that the installation cost is also greatly reduced in scope. In addition, only a single dedicated crane need be installed to carry out maintenance, and all maintenance of the auxiliary equipment may be easily carried out by installing only this single crane.

What is claimed is:  
     
         1 . A gas turbine generator plant provided with: a generator, a gas turbine unit, and auxiliary equipment comprising a starter, a lubricating oil device, a control oil device, and a lubricating oil tank, wherein: 
 said auxiliary equipment is made into a unit, and    said unitary auxiliary equipment, said generator, and said gas turbine unit are disposed in that order within a building.    
     
     
         2 . A gas turbine generator plant in accordance with    claim 1   , wherein 
 in said unitary auxiliary equipment, said starter, lubricating oil device, and control oil device are disposed on said lubricating oil tank and made unitary.    
     
     
         3 . A gas turbine generator plant in accordance with    claim 2   , wherein 
 a soundproof cover is provided about said unitary auxiliary equipment.    
     
     
         4 . A gas turbine generator plant in accordance with    claim 1   , wherein 
 the roof of said building is such that the roof above said gas turbine unit is higher than the roof above said unitary auxiliary equipment and said generator.    
     
     
         5 . A gas turbine generator plant in accordance with    claim 4   , wherein 
 maintenance cranes are provided within said building at the side of said gas turbine unit and at the side of said unitary auxiliary equipment and said generator.    
     
     
         6 . A gas turbine generator plant in accordance with    claim 4   , wherein 
 a gas turbine suction means is provided on the lower roof of said building.    
     
     
         7 . A gas turbine generator plant in accordance with    claim 1   , wherein 
 in a soundproof cover enclosing said gas turbine unit,    in order to reduce the noise generated by said gas turbine unit, a ventilator within a soundproof cover, for ventilating the interior of said soundproof cover, limiting temperature increases therein, and maintaining the interior at an allowed temperature or below, is provided.    
     
     
         8 . A gas turbine generator plant in accordance with    claim 7   , wherein 
 said ventilator within a soundproof cover comprises:    three branched ducts, which are coupled at a position separated from said soundproof cover and which independently exhaust air within said soundproof cover,    fans, interposed in said branched ducts, each having a capacity capable of exhausting, from within said soundproof cover, approximately half the air required to maintain the temperature within said soundproof cover at an allowed temperature or below; and    a ventilation duct, into which said branched ducts merge and become unitary on the downstream side of said fans, which is provided in a vertical fashion to a point above the building in which said gas turbine is disposed, and in which partitions are vertically provided which form compartments coupled with, respectively, said branched ducts.    
     
     
         9 . A gas turbine generator plant in accordance with    claim 8   , wherein 
 the cross-sectional area of said 3 branched ducts is set so as not to increase the delivery pressure of said fans.    
     
     
         10 . A gas turbine generator plant in accordance with    claim 8   , wherein 
 a shut off damper is provided on the suction port side of said fans.