FIELD: instrument engineering.
SUBSTANCE: group of inventions, which includes a valve system pressure relief, a high pressure vessel of a blast furnace, with multiple valve pressure relief systems, a pressure relief method in a pressure vessel. Valve system comprises discharging fluid from a pressure vessel; flexible compensation part at the end of the release of the fluid, remote from the pressure vessel; main pressure relief valve containing valve seat and valve cover. Valve seat contains a flange mounted on the compensation part, and the valve cover is adapted to the shape of the valve seat with a flange. System further comprises a discharge channel for the fluid connected to the release of the fluid, and a secondary pressure relief valve for receiving fluid from a fluid outlet. Secondary pressure relief valve contains an outlet connected to the actuator opening the valve, whereby the passage of fluid through the secondary pressure relief valve drives the opening actuator to open the valve cover.
EFFECT: technical result is the ability of the opening mechanism to operate independently of any external power source, using only gas pressure.
14 cl, 6 dwg
