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Manufacture method for diatomite composite drag reduction surface absorbed with drag reducer

A production method and diatomite technology, which are applied in the field of bionics, can solve the problems such as the inability of the drag reducer to effectively act in the turbulent effective area, the high cost of use and maintenance, and the rapid consumption of the drag reducer, so as to reduce the cost of use and maintenance and improve the The effect of utilizing efficiency and reducing dosage

Inactive Publication Date: 2012-04-25
SHANDONG UNIV OF TECH
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Problems solved by technology

The implementation of this drag reduction method currently mainly adopts the method of directly releasing or coating the drag reducing agent on the surface of the aircraft or the inner wall of the long-distance pipeline, which often makes a large amount of drag reducing agent unable to effectively act on the turbulent effective area, resulting in the consumption of drag reducing agent. Fast, large amount, serious waste, and need to be replenished constantly, so the cost of use and maintenance is relatively high

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  • Manufacture method for diatomite composite drag reduction surface absorbed with drag reducer
  • Manufacture method for diatomite composite drag reduction surface absorbed with drag reducer
  • Manufacture method for diatomite composite drag reduction surface absorbed with drag reducer

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[0041] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.

[0042] refer to figure 1The method for making a diatomite composite drag-reducing surface adsorbed with a drag reducing agent comprises the following steps: the first step is a diatomite pretreatment process to prepare a diatomite mixture. Diatomite pretreatment process can adopt common pretreatment method, also can adopt following diatomite pretreatment steps: Soaking for 3 minutes to 5 minutes, and then filtering with a filter cloth of 5 μm to 20 μm to obtain the first diatomite mixture. (B) Soak the first diatomaceous earth mixture in NH4, H2O2, H2O mixture (1:2:7) at a temperature of 80°C to 90°C for 10min to 20min, and then use a 5μm to 20μm filter Cloth was filtered to obtain the second diatomaceous earth mixture. (C) Add deionized water to ...

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Abstract

The present invention relates to the technical field of bionics, specifically to a manufacture method for a drag reduction surface. The manufacture method for the diatomite composite drag reduction surface absorbed with a drag reducer comprises: 1) carrying out a diatomite pretreatment process; 2) carrying out a diatomite filtering and screening process; 3) carrying out a diatomite wet blank manufacture process; 4) duplicating and forming a groove morphology of the high-fidelity artificial shark scales; 5) carrying out sintering, curing and direct forming for the diatomite under the artificial shark scale groove morphology constraint; 6) absorbing a sustained release drag reducer on the cured diatomite surface to prepare the diatomite composite drag reduction surface absorbed with the drag reducer. According to the present invention, the drag reducer is absorbed to the artificial shark diatomite composite drag reduction surface, such that the drag reduction function of the artificial shark scale grooves is provided, and the drag reduction function due to sustained release of the self-lubricating mucus by the artificial shark is further provided.

Description

technical field [0001] The invention relates to the field of bionic technology, in particular to a method for manufacturing a drag-reducing surface. Background technique [0002] Sharks are good swimmers in the ocean. Their cruising speed in the water is about 5kph, and they can burst to 70kph instantly when chasing prey. In addition to its standard streamlined body, the high swimming speed of sharks is also closely related to its special micron-scale scale groove structure and the mucus secreted from its body surface. The combined effect of the two is called "shark skin effect". At present, imitating the drag reduction mechanism of shark skin and manufacturing high-fidelity shark-like composite drag reduction surfaces has become a research hotspot at home and abroad, and has important application value in the field of drag reduction for underwater vehicles and long-distance pipelines. [0003] The use of drag reducing agent to reduce drag is an efficient drag reduction met...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B35/14C04B35/622B63B1/34
CPCY02T70/121Y02T70/123Y02T70/10
Inventor 韩鑫尹磊昌张庆森邱先慧张珊珊
Owner SHANDONG UNIV OF TECH
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