An electrolysis device and its application in microbubble drag reduction technology

A micro-bubble and technical technology, applied in transportation and packaging, hull, ship construction, etc., can solve the problems of high production and maintenance costs, complicated drag reduction methods, etc.

Active Publication Date: 2019-12-03
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the problems in the prior art that the drag reduction method has complicated processing methods, high manufacturing and maintenance costs, discharge of organic matter to the environment, and is suitable for high-speed objects, the invention provides an underwater micro-bubble drag reduction device and its preparation method, thereby effectively Lower resistance, lower costs; and environmentally friendly

Method used

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  • An electrolysis device and its application in microbubble drag reduction technology
  • An electrolysis device and its application in microbubble drag reduction technology
  • An electrolysis device and its application in microbubble drag reduction technology

Examples

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Embodiment 1

[0048] Drill a hole in the center of the 15mm diameter brass ball, the hole is about 2mm in diameter and about 7mm in depth. Use 600-mesh sandpaper to fully polish one end of the enamelled copper wire with two diameters of thick and thin, so that the copper wire slightly larger than the depth of the first step is exposed. Use 2mol / L sodium hydroxide solution, 2mol / L Hydrochloric acid solution and acetone ultrasonically clean the surface of the brass ball and the exposed copper wire, then clean it with absolute ethanol, finally clean it with deionized water, and dry it for later use. Cut a section of conductive double-sided tape, the length and width are 6×8mm. Tightly wrap half of the conductive double-sided adhesive on the tip of the thick copper wire, and then tightly wrap the thin copper wire on the tip of the copper wire with the conductive double-sided adhesive; insert the thick copper wire wrapped with double-sided adhesive into the brass ball In the hole, keep a thick ...

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Abstract

The invention provides a preparation method for a device which can electrolyze water to prepare hydrogen in the moving process and a method for conducting underwater resistance reducing by adopting hydrogen microbubbles generated by the device. Through the microbubble resistance reducing technology, the resistance of the device when moving underwater is effectively reduced, and manufacturing and implementation are easy. Raw materials used in the preparation process are all free of poison and have no radiation effect, the bubbles are mainly generated in the resistance reducing process, and no adverse effect exists on the environment.

Description

technical field [0001] The invention relates to the technical field of drag reduction of underwater low-speed moving bodies, in particular to a drag reduction method in which a device is applied to generate microbubbles. Background technique [0002] The resistance of an object moving in a fluid is proportional to the density of the fluid, and the resistance of a flying object during its movement in water is about 1000 times that of an aircraft in the air. Water transportation occupies an important position in the bulk cargo transportation industry, and the huge resistance of the vehicle body in the water increases its energy consumption and wear during navigation, and reduces the life of the vehicle body. Research on how to reduce the resistance of a vehicle running in water plays an important role in saving energy and improving transportation efficiency. [0003] At present, common drag reduction methods include non-smooth surface drag reduction, superhydrophobic surface ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B1/38
CPCB63B1/38B63B2001/387Y02T70/10
Inventor 王景明兰林文江雷
Owner BEIHANG UNIV
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