Air seal device with adjustable flow regulator

The utility model provides an air seal device with an adjustable flow regulator, which comprises a pressure stabilizing cylinder fixedly connected with a high-pressure nozzle. The head of the high-pressure nozzle is connected with a main air supply system; the end, close to the head, of the side wall of the high-pressure nozzle is connected with an auxiliary air supply system. One end, close to the tail part, of the side wall of the high-pressure nozzle is connected with a high-pressure water spraying temperature reduction system; a throttling plate capable of providing the minimum flow of the warm pipe is arranged between the auxiliary air supply system and the high-pressure water spraying temperature reduction system. The throttling plate can enable the gas in the main steam flow channel to reach the minimum flow of the heating pipe when not used, a certain pre-starting temperature is guaranteed, and the situation that the temperature cannot meet the steam sealing requirement during starting can be prevente