Bubble ice breaking method

A technology of air bubbles and ice layers, which is applied to icebreakers, water conservancy projects, and the cleaning of open water surfaces. It can solve problems such as low efficiency, damage to bridges and other facilities, explosives and high financial and material costs for arranging explosions, and avoid damage and save costs. Effect

Active Publication Date: 2017-07-04
HARBIN ENG UNIV
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Problems solved by technology

The hull and other mechanical structures are easily damaged under the impact of ice, and the speed of icebreakers is low, and the thickness of icebreaking is limited; when encountering thicker ice layers, they are often helpless or must use repeated collisions to break ice, which is less efficient
Second, for chemical exp

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] The invention utilizes the damage caused by the movement of the underwater moving air bubbles to the nearby ice layer to break the ice. in:

[0023] One or more air bubbles are generated in the water, and the bubbles will expand and then contract, causing damage to the ice layer through at least one of the following four forms: 1. The expansion and contraction of the bubbles cause the movement of the water, exerting a repulsive force on the ice layer Or attractive force, causing the ice layer to be subjected to a bow or sag bending moment; 2. The deformation motion of the bubble causes the water jet to exert a force on the ice layer; 3. The deformation motion of the bubble causes a shock wave, which exerts a force on the ice layer ; 4. The gas in the air bubbles displaces the water under the ice, reducing the buoyancy of the ice and thus breaking it.

[0024] ...

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PUM

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Abstract

The invention belongs to the technical field of ocean and inland river ice breaking, and particularly relates to a bubble ice breaking method. A bubble generating device is used for pulsation bubbles at the position, vertically away from an ice layer by D, below the ice layer, D is larger than 0 and smaller than 2R, R is the maximum radius capable of being reached by the bubbles generated by the bubble generating device under the situations that the water depth is the same, and the ice layer does not exist, the near ice layer is damaged through the movement of underwater movable bubbles, and ice breaking is conducted; one or more bubbles are generated in water, the bubbles are expanded and then contracted, and ice layer damage is caused through at least one of the following four forms. According to the bubble ice breaking method, designing and manufacturing of an ice breaker are not needed, throwing of bombs, explosives and the like is not needed, and cost is saved; a mechanical structure does not directly collide with the ice, and damage of a ship body or a machine is avoided; and substances such as the explosives do not need to be used, explosion pollutants are avoided, and the bubble ice breaking method is more environment-friendly and safer.

Description

technical field [0001] The invention belongs to the technical field of ocean and inland river ice breaking, and in particular relates to a bubble ice breaking method. Background technique [0002] At present, there are two main forms of ice breaking technology, one is physical and mechanical ice breaking, and the other is chemical explosion ice breaking. The main method of mechanical ice breaking is that the icebreaker sailing in the ice area uses its own ship weight to crush the ice surface under the bow and discharge the broken ice to the sides to achieve the purpose of dredging the channel. In polar marine surveys, due to the protection of the polar ecological environment, explosions cannot be used to break the ice, so icebreakers are mainly used to break the ice. In terms of ice and flood prevention in inland river basins such as the Yellow River and Songhua River, chemical explosions can be used to break ice. Rising temperatures in spring cause the ice to gradually me...

Claims

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Application Information

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IPC IPC(8): E02B15/02B63B35/08
CPCB63B35/08E02B15/02
Inventor 张阿漫崔璞王诗平刘云龙任少飞明付仁曹雪雁李晨亮
Owner HARBIN ENG UNIV
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