The invention discloses an offshore anchor and belongs to the technical field of sea anchoring foundation mooring. The anchor comprises an anchor cylinder and a hoisting device. The hoisting device isconnected above the anchor cylinder; an outer conical surface with a downward conical tip and an acute conical angle is arranged below the outer side surface of the anchor cylinder; and an upper endcover through hole is formed in the center of the upper side of the anchor cylinder, an inner adsorption assembly is hoisted above an inner cavity, installation rings are installed on the outer side surface of the anchor cylinder, a distance between each installation ring and the lower end surface of the anchor cylinder is larger than L3*cos alpha/sin alpha, and at least three installation rings are evenly distributed and connected with an outer adsorption assembly. Compared with a traditional suction anchor, by using the anchor of the invention, a taper angle is added below the anchor cylinder; the anchor body sinks into a seabed sediment layer more easily; the adsorption assemblies are additionally arranged on the inner side and the outer side of the anchor cylinder; and sediment on theinner side and the outer side of an anchoring system is continuously reinforced through a vacuum adsorption preloading method, negative pressure can be enhanced for an inner cavity of the anchoring body when necessary, a lasting and reliable grabbing force is maintained, a problem of vacuum damage caused by sea wave scouring and seabed soil softness is solved, double-layer safety guarantee is achieved, installation is convenient and fast, and adaptability is high.

    本发明公开一种近海锚,属于海上锚固基础系泊技术领域,包括锚筒及起吊装置,锚筒上方连接起吊装置,锚筒外侧面下方为一锥尖向下、锥角为锐角的外锥面,锚筒上侧中心含一上端盖通孔,内腔上方吊装有内吸附组件,锚筒外侧面安装有安装环,安装环距锚筒下端面的距离大于L3·cosα/sinα,且至少均布三个,安装环与外吸附组件连接。相比传统吸力锚,本发明在锚筒下方增加锥角,使锚体更易沉入海底泥沙层,并在锚筒内外侧分别增设吸附组件,依靠真空吸附预压方法持续加固锚固系统内外侧的泥沙,必要时亦可为锚体内腔增强负压,维持持久可靠的抓力,解决了海浪冲刷及海底土质松软带来的真空破坏问题,实现双层安全保障,安装便捷、适应性强。


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    Titel :

    Offshore anchor


    Weitere Titelangaben:

    近海锚


    Beteiligte:
    ZHANG SEN (Autor:in) / ZHANG HONGGANG (Autor:in) / GAN XUEZHEN (Autor:in) / DU BAISONG (Autor:in) / LIU MAN (Autor:in)

    Erscheinungsdatum :

    2020-09-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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