Method and device for oil containment by air curtain

Abstract

The invention provides an oil containment method, especially a method for utilizing an air curtain to contain oil, so as to solve the problem that the existing oil containment boom has an unsatisfactory oil containment effect due to reduced efficiency. The invention comprises the following steps: the air curtain generating part placed under the water continuously releases gas into the water to form continuous bubbles; the bubbles drive the flow of the surrounding liquid in the process of rising to form a bubble plume to play a blocking effect; the bubble plume When reaching the free liquid surface, the original vertical movement direction is changed to the horizontal movement direction to form a surface flow to achieve the oil confinement effect. The device for implementing the above method includes an oil containment boom, an air curtain generating part and an air injection part, the air curtain generating part is arranged underwater and communicated with the gas injection part, and the oil containment boom surrounds the inside and outside of the air curtain generating part . The invention realizes the oil confinement effect by means of the buoyancy of the rising bubbles and the planar potential flow generated by the rupture of the bubbles on the free liquid surface, and overcomes the disadvantages of the traditional oil containment boom during use.

Description

technical field [0001] The invention relates to an oil containment method, in particular to a method and device for oil containment using an air curtain. Background technique [0002] Oil spills at sea are a major risk in shipping oil by sea. Marine oil spill accidents cause serious harm to the natural environment. Once an accident occurs, corresponding emergency measures need to be taken. Among them, oil containment booms are commonly used equipment to deal with marine oil spill accidents. Generally, inflatable oil containment booms and solid float type oil containment The oil containment boom can achieve a relatively ideal oil containment effect in an ideal environment, but due to the influence of external unstable factors such as ocean currents and wind waves, the efficiency of oil containment often decreases or even fails; in addition, once an accident is accompanied by a fire, the traditional oil containment boom Just invalidated; And the arrangement of traditional oil...

AI Technical Summary

Problems solved by technology

Marine oil spill accidents cause serious harm to the natural environment. Once an accident occurs, corresponding emergency measures need to be taken. Among them, oil containment booms are commonly used equipment to deal with marine oil spill accidents. Generally, inflatable oil containment booms and solid float type oil containment The oil containment boom can achieve a relatively ideal oil containment effect in an ideal environment, but due to the influence of external unstable factors such as ocean currents and wind waves, the efficiency of oil containment often decreases or even fails; in addition, once an accident is accompanied by a fire, the traditional oil containment boom It will fail; and the arrangement of the traditional oil boom not only needs to consume a lot of manpower, material resources and financial resources, but also the arrangement of the oil boom also hinders the normal navigation of the ship

[0003] In addition, some waters with fragile ecological environments have high requirements for environmental protection, while traditional oil booms can only contain oil but cannot quickly deal with oil spills. Although chemical dispersants can deal with oil spills, their chemical composition is also harmful to aquatic organisms. It will cause certain damage and does not meet the environmental protection requirements of special waters

Images