DEVICE FOR PROTECTING TANK AGAINST PRESSURE RISE AND OVERFLOWING Russian patent published in 1995 - IPC

FIELD: power engineering. SUBSTANCE: device has open vessel 1 received in the tank of the batcher, outlet branch pipe 2 mounted inside the vessel, outlet valve 5, device for hydraulic unloading of valve 5 provided with rod 6 secured to the outlet branch pipe with disks 8 fitted on the pipe, distance bushings 9, relief valve 13 connected with float 14 and plunger 18, pressed with spring 19, and positioned inside housing 20, airlift 23 for maintaining a given level of water in vessel 1, and opening 27 for supplying steam to float 14. EFFECT: enhanced reliability. 2 dwg