Well bottom structure of hydrogen storage well

The utility model discloses a hydrogen storage well bottom structure which comprises a well bottom body, the bottom end of the well bottom body is rounded, a mounting groove is formed in the top end of the well bottom body, the bottom of the mounting groove is a concave arc surface, and an inverted-circular-truncated-cone-shaped threaded hole is formed in the upper portion of the arc surface. The concave arc surface is arranged in the well bottom body, so that stress is not easy to concentrate in a high-pressure hydrogen environment, and stress corrosion is avoided; in addition, the inverted-circular-truncated-cone-shaped threaded holes have the automatic centering effect, the sealing effect is good, the bottom end of the well bottom body is rounded, and the hydrogen storage well can enter the well smoothly. 本实用新型公开了一种氢气储气井井底结构，包括井底本体，所述井底本体底端倒圆，井底本体顶端开设安装槽，该安装槽底部为下凹的圆弧面，在圆弧面上方设有倒圆台形的螺纹孔。本实用新型的井底本体内部设有下凹的圆弧面，使得在高压氢环境下，应力不容易集中，避免应力腐蚀；另外，倒圆台形的螺纹孔具有自动对中的效果，且密封效果优良，井底本体底端倒圆，有利于氢气储气井顺利入井。