EASILY DETACHABLE TANK ROOF Russian patent published in 2025 - IPC B65D88/08 A62C3/06 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry during operation of vertical steel tanks (VST) for storage of oil, gas condensate and produced water, in particular, to stationary roofs of vertical steel tanks, containing easily detachable elements of the roof of the tank, which provide higher reliability at onset of critical conditions by pressure inside the gas area of the VST. Tank easily detachable roof comprises a load-bearing frame including radial and annular stiffeners resting on the tank wall, a stationary part of the roof including flooring sheets with a deployable flooring element, device for fixation of opening flooring element, rubber seal of opening flooring element. Deploying flooring element is made in the form of radially located at least one flooring sheet connected by tight connection with rubber seal, wherein the tight connection of the surface of the opening flooring element with the radial stiffeners is made in the form of a U-shaped longitudinal support profile, inside of which there is a U-shaped rubber seal with longitudinal protruding stampings on both inner sides tightly adjacent to the vertical surface of rigidly connected support angles, which are rigidly connected by horizontal sides to radial stiffeners of the bearing frame. Tight connection of the surface of the opening breaking element of the flooring along the perimeter of the contact with the wall of the tank is made in the form of a segment of a U-shaped support profile, inside of which there is a U-shaped rubber seal with longitudinal protruding punching on both inner sides tightly attached to the vertical surface of rigidly connected support angles arranged on both sides of the upper part of the tank wall, and by horizontal sides rigidly connected to the support angles. Tight connection of the surface of the opening flooring element with the central stiffness ring is made in the form of a segment of a U-shaped support profile, inside of which there is a U-shaped rubber seal with longitudinal protruding punchings on both inner sides tightly adjacent to the vertical surface of rigidly connected support angles, which are rigidly connected to the central stiffening ring of the frame by horizontal sides. Device for fixation of unfolding element of flooring is made in the form of movable element rigidly connected through bracket with movable opening element of flooring.

EFFECT: higher reliability and safety of vertical steel tank for storage of oil, gas condensate and produced water, elimination or reduction of repair costs, as well as expansion of scope of application and arsenal of technical means providing controlled emergency release of steam-gas mixture from free volume of reservoir at occurrence of critical conditions by pressure inside gas area of vertical steel tank and subsequent sealing of the reservoir after equalizing the pressure of the vapour-gas mixture in the vapour-air space of the tank.

1 cl, 6 dwg