The invention discloses a safe
pressurizer of a
wind power generation hydraulic
system, which is applied to the technical field of
wind power generation, and comprises an
oil pump, and an accumulator connected with an
oil pump pipeline; an oil inlet of a spindle
brake unit and an oil inlet of a yawing
brake unit are arranged on the
oil pump and an accumulator pipeline in sequence; a manual pump
branch connected with a first interface of an external
oil tank through a manual pump pipeline, a first adjustable
throttle valve, a
throttle valve
branch connected with a second interface of the external
oil tank through a
throttle valve pipeline, and a first spillover valve
branch connected with the second interface of the external
oil tank through a first spillover valve pipeline are arranged between the oil inlet of the yawing
brake unit and the accumulator pipeline in sequence. When
oil supply of the pipeline of the accumulator adopted by the safe
pressurizer of the
wind power generation hydraulic
system is
cut off, the hydraulic oil stored in the pipeline is released and flows into a spindle brake device and a yawing brake device so as to guarantee the normal work of the two devices; and when a fan is stopped for overhauling, the pressure of the accumulator can supplement the pressure loss in the
system to play the role of pressurizing.