Air supply method and system for an environmentally friendly dredging air curtain
An environment-friendly dredging and gas supply system technology, applied in construction, water conservancy engineering equipment, water conservancy engineering, etc., can solve problems such as energy consumption and inability to regulate fine-grained sediment
Active Publication Date: 2021-11-16
CCCC WUHAN HARBOR ENG DESIGN & RES +1
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Problems solved by technology
The air supply volume of existing air curtains is often fixed and cannot be adjusted according to the amount of fine-grained sediment, which often consumes more energy
Method used
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[0029] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.
[0030] Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terminology used herein is only for the purpose of describing specific embodiments, and is not intended to limit the protection scope of the present invention.
[0031] In order to realize the air supply method of the air curtain of the present invention and determine the expected air supply volume for preventing the diffusion of fine particle silt, the present invention establishes the following calculation model:
[0032] (1) Clear and muddy water exchange mechanism
[0033] When there is no air curtain, the mechanism o...
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A gas supply method and system for an environmentally friendly dredging air curtain, the method comprising the following steps: obtaining the depth of the on-site water; obtaining the concentration of muddy mud and sand; Expected air supply volume: According to the expected air supply volume for preventing the spread of fine-grained sand, control the air supply of the air curtain so that the air supply volume is equal to or infinitely close to the expected air supply volume for preventing the spread of fine-grained sand. The invention realizes automatic adjustment according to the concentration of fine particle sediment in the muddy water, and precisely controls the air supply volume of the air curtain. When the concentration of fine-grained sediment is low, the air supply volume is reduced, which plays the role of saving energy and reducing consumption. When the concentration of fine-grained sand is high, the air supply volume increases to ensure the effect of preventing fine-grained sand from spreading. The method of the invention achieves the purpose of energy saving and emission reduction under the premise of ensuring the effect of preventing the diffusion of fine particle sediment.
Description
technical field [0001] The invention belongs to the field of environment-friendly dredging, in particular to an air supply method and system for an environment-friendly dredging air curtain for ships to pass through waters. Background technique [0002] The dredging process causes the suspension and dispersion of fine-grained sediment. A simple measure to prevent this spread is to place antifouling curtains outside the dredging work area. If the ship enters and exits the dredging construction area, it needs to frequently move the anti-pollution curtain, resulting in limited anti-proliferation effect. The air curtain can not only meet the environmental protection standards for fine particle sediment diffusion, but also meet the anti-proliferation technology required by navigation. [0003] The air curtain is an upward plume formed by the air bubbles generated by the perforated hose on the substratum to drive the water body. The plume forms a horizontal backflow near the wa...
Claims
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IPC IPC(8): E02B1/00
CPCE02B1/003
Inventor 翟建国刘庆茶黄筱云胡勇虎江诗群程永舟夏波贾智谋伍炳坤
Owner CCCC WUHAN HARBOR ENG DESIGN & RES