Vacuum Circuit Breaker is a type of flushing equipment used in regulating reservoirs. The vacuum closure device, in conjunction with a vacuum system and SCADA control system, creates a vacuum negative pressure in the storage chamber of the regulating reservoir, elevating the water level to a certain height to store potential energy. During flushing, the vacuum closure device rapidly releases the water from the storage chamber, converting the potential energy of the water flow into kinetic energy, generating a powerful flushing flow to effectively clean sediment at the bottom of the regulating reservoir.