The invention relates to the technical field of polar region icebreaker research and development, in particular to an auxiliary icebreaking system suitable for a polar region icebreaker. The auxiliary icebreaking system comprises a water supply pipeline, a negative pressure pipeline and a gas-water mixture generating device. And the plurality of gas-water mixture generating devices are linearly arranged along the side board of the polar icebreaker. In the sailing process of the polar icebreaker, the multiple gas-water mixture generating devices are started alternately. Bubbles contained in the air-water mixture generate a cavitation effect in seawater due to the influence of an internal and external water pressure difference, the bubbles rapidly present an asymmetric collapse phenomenon after brief expansion, a large amount of pulsation energy and heat are released in time, and an ice layer in a nearby area is instantly broken. In actual operation, bubbles are generated in the self-boiling stage of seawater due to the negative pressure effect, it is only needed to ensure that negative pressure gas is continuously supplied to maintain the boiling state of the seawater, and the needed consumed energy is extremely small; and the inner cavity of the tank body is always kept in a non-high-pressure state in a sea water pumping stage and a negative-pressure gas introduction and bubble generation stage.
本发明涉及极地破冰船研发技术领域,尤其是一种适用于极地破冰船的辅助破冰系统。辅助破冰系统包括供水管路、负压管路和气水混合体发生装置。多个气水混合体发生装置沿着极地破冰船侧舷线性排布。在极地破冰船航行进程中,多个气水混合体发生装置交替启动。气水混合体中所含有的气泡在海水内因受到内外水压差影响而发生空穴效应,气泡在短暂膨胀后迅速呈现不对称坍塌现象,即时释放大量脉动能与热量,附近区域冰层得以瞬时破裂。在实际运行中,气泡生成于海水因负压作用而自沸腾阶段,仅需确保负压气体持续供应以维持海水的沸腾状态即可,所需消耗的能量极少;且在海水泵入阶段以及负压气体通入、气泡生成阶段,罐体的内腔始终保持于非高压状态。
Auxiliary icebreaking system suitable for polar icebreaker
一种适用于极地破冰船的辅助破冰系统
2023-06-30
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |