Earthquake-resistant modular SBO diesel generator set for nuclear power station

Abstract

The invention discloses an earthquake-resistant modular SBO diesel generator set for a nuclear power station. The diesel generator set includes a public chassis, a diesel engine, a generator, a coupling, a guard of the coupling, a starter motor device, an electric barring device, a speed governor installation box, a machine-side junction box, an instrument rack, a shock absorber, a lubricating oilpre-supply pump, a lubricating oil cooler, a lubricating oil fine filter, a lubricating oil temperature control valve, a cooling water preheating device, a fuel coarse filter, a fuel fine filter, a fuel backup oil supply pump and related valves and pipelines. The public chassis of the entire generator set of the invention is connected with a civil foundation through a vibration isolator arrangedon the side of the public chassis. The unit can operate normally during and after earthquakes to ensure the normal function of electrical equipment, thereby ensuring the reliable operation of the nuclear power station; and the effect has been verified by the seismic analysis and performance test of the unit. The earthquake-resistant modular SBO diesel generator set for the nuclear power station ofthe invention can operate normally during and after earthquakes, and adopts modular design and supply while considering the convenience of maintenance.

Description

technical field [0001] The invention belongs to the field of diesel generating sets, and in particular relates to an anti-seismic SBO diesel generating set used in nuclear power plants. Background technique [0002] Diesel generator set is a small power generation equipment, which refers to the power machinery that uses diesel oil as fuel and diesel engine as the prime mover to drive the generator to generate electricity; most of the SBO diesel generator sets used in nuclear power plants are backup power sources. In the case of loss of external power supply and main generator power supply (SBO), power is supplied to safety-level systems and equipment to ensure the subcriticality and cooling of the reactor and reduce the radioactivity of the reactor shell. The unit should be able to operate normally during and after the earthquake, so there is an anti-seismic requirement. At the same time, most nuclear power plants currently use SBO diesel generator sets, and the system comp...

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