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Method for lifting deep ocean water rich in nutritive salts by controlling air bubble curtain

A deep seawater and control method technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve problems such as lack of research and limitations

Inactive Publication Date: 2015-11-25
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the theoretical research on the surrounding water body driven by the bubble curtain is relatively mature, but most of them are limited to the still or unstratified water body, and there is no research on the flowing or different density stratified seawater environment.

Method used

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  • Method for lifting deep ocean water rich in nutritive salts by controlling air bubble curtain
  • Method for lifting deep ocean water rich in nutritive salts by controlling air bubble curtain
  • Method for lifting deep ocean water rich in nutritive salts by controlling air bubble curtain

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0036] In order to raise the nutrient-rich salt in deep seawater above the density interface, the present invention provides a control method for raising nutrient-rich deep seawater with a bubble curtain, which specifically includes the following steps:

[0037] (1) Acquisition of the parameters of the sea area: use the temperature and salinity depth instrument CTD and the acoustic Doppler current velocity profiler ADCP to measure the temperature, salinity profile and ocean currents of the sea area to be measured, and obtain the depth H of the density layer in the sea area s , lower density value ρ a1 and the horizontal current velocity u c ;

[0038] (2) Calculate the trajectory of the bubble curtain and the trajectory of the DOW plume: establish an x-z ​​plane coordinate system at the center of the gas injection nozzle; initially set the gas inje...

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Abstract

The invention discloses a method for lifting deep ocean water rich in nutritive salts by controlling an air bubble curtain. The method belongs to the technical field of manually lifting current. The invention overcomes the deficiency of the manual lifting current theory in the prior art by providing such a controlling method to lift deep ocean water rich in nutritive salts with different flows and densities. The method controls the air bubble curtain in a manually lifting current to lift the height of deep ocean water rich in nutritive salts so that the deep ocean water rich in nutritive salts can be effectively captured at a density surface. Based on the method, it is possible for a performer to effectively adjust for a best air injection amount according to different ocean conditions, and therefore, energy consumption is reduced, gains are increased, and assistance is provided to scientists for them to carry out manually lifting current.

Description

technical field [0001] The invention relates to the technical field of marine artificial upwelling, in particular to a control method for raising nutrient-rich deep seawater by a bubble curtain, which is mainly used to control the bubble curtain in artificial upwelling to raise the height of nutrient-rich deep seawater so that it can effectively is captured by the density interface. Background technique [0002] There are rich nutrients in deep seawater (DOW), if they can be brought into the photosphere of the ocean, they will be ingested by phytoplankton, together with dissolved carbon dioxide and solar energy, organic matter can be produced through photosynthesis. No matter in any sea area and season, nutrients such as nitrogen and phosphorus that rise to the photic layer can make phytoplankton proliferate, and the conversion to zooplankton and fish can be promoted by the force of nature. Ocean artificial upwelling technology is such a technology that deploys marine equip...

Claims

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Application Information

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IPC IPC(8): G05B13/02
Inventor 樊炜强永发陈鹰徐驰骋潘依雯
Owner ZHEJIANG UNIV
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