The invention discloses a fused salt
energy storage / release
system for simulating deep peak regulation of a thermal power
plant and a control method, and the
system can operate in dual
modes: in a peak
electricity period, hot fused salt releases heat through a heat exchange loop, a working medium is heated through three-stage
cascade heat exchange to generate high-grade steam to push a
turbine to generate power, and the peak
electricity demand is responded; in the off-peak
electricity period, the low-temperature fused salt absorbs redundant steam heat of the thermal power
generating unit to be stored, and
energy loss is reduced. The
system comprises three core loops, wherein a water loop forms a
closed loop through two-stage preheating,
vaporization and overheating, and a
soft water supply and
safety valve is matched to guarantee cleanliness and safety; the fused salt loop takes double storage tanks and a multi-stage
heat exchanger as a core, fused salt solidification is prevented by means of the design of a heat tracing band, pipeline gradient and the like, and safety is guaranteed through
interlocking conditions; the steam loop simulates
waste heat input, a
closed loop is achieved through
vaporization, overheating, heat exchange and condensation, and the water supplementing device is linked to prevent dry burning. According to the invention,
simulation, safety and regulation and control accuracy can be considered at the same time.