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Three-dimensional braided composite material ocean guide pipe and preparation method thereof

A three-dimensional weaving, composite material technology, applied in the field of marine ship equipment, can solve the problems of incompatibility with large endurance, light weight, poor corrosion resistance, damage to the ecological environment, etc., to improve underwater bearing and corrosion resistance, long service life cycle, and the effect of improving load-carrying efficiency

Pending Publication Date: 2021-07-30
宜兴市新立织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the ducted propeller will generate a certain amount of noise in the ocean area, which will threaten marine animals and destroy the ecological environment
In addition, marine vessels often have the need for weight reduction. Conventional marine conduits are mostly made of copper alloys, which not only have poor corrosion resistance, short service periods, but also have relatively high quality, which does not meet the current requirements of large battery life and light weight technology. Require

Method used

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  • Three-dimensional braided composite material ocean guide pipe and preparation method thereof
  • Three-dimensional braided composite material ocean guide pipe and preparation method thereof
  • Three-dimensional braided composite material ocean guide pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This example takes the ka4-70 propeller as the implementation object. The length of the marine conduit in the example is 100mm, the diameter from the leading edge to the trailing edge is 300-200mm, the braiding thickness is 10mm, the yarn is T700 carbon fiber, and the thickness of the damping layer is 1.2mm. The volume fraction of the thermosetting modified resin is 40%.

[0044] Concrete preparation steps are:

[0045] According to the drawing requirements of marine conduits, three-dimensional weaving technology is used to weave the conduit structure with zigzag and concave-convex arcs at the trailing edge, and the warp-enhanced 2.5D braiding structure is used for weaving, aiming at the special-shaped trailing edge of marine conduits , realized by adding and subtracting yarns in three-dimensional weaving, and finally forming a prefabricated part of a three-dimensional braided marine conduit.

[0046] Water-resistant epoxy resin is used as the matrix material, and the ...

Embodiment 2

[0050] In this example, the ka470 propeller is used. The length of the marine duct in the example is 200mm, the inner diameter is 400-200mm from the leading edge to the trailing edge, the braiding thickness is 15mm, the yarn is T700 carbon fiber, the thickness of the damping layer is 1.2mm, and the thermosetting modified resin The selected volume fraction is 60%.

[0051] The specific preparation steps are

[0052] According to the drawing requirements of the marine conduit, the three-dimensional weaving technology is used to weave the conduit structure with a combination of zigzag and concave-convex arcs at the trailing edge, and the warp-enhanced 2.5D braiding structure is used to weave the special-shaped trailing edge of the marine conduit. , realized by adding and subtracting yarns in three-dimensional weaving, and finally forming a prefabricated part of a three-dimensional braided marine conduit.

[0053] Water-resistant modified thermosetting epoxy resin is used as the ...

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Abstract

The invention discloses a three-dimensional braided composite material ocean guide pipe and a preparation method thereof. The tail edge of the ocean guide pipe is provided with an integrally-formed bionic protruding structure, the ocean guide pipe is formed by compounding a carbon fiber three-dimensional braided structure and a water-resistant resin material, and propeller blades and a propeller hub are installed in the ocean guide pipe. The bionic protruding structure comprises sawtooth-shaped protrusions and arc-shaped protrusions, wherein the sawtooth-shaped protrusions and the arc-shaped protrusions are evenly arranged along the circumference. A three-dimensional braided structure prefabricated part and water-resistant resin are compositely manufactured through the vacuum auxiliary technology or the RTM technology, and the tail edge structure is specially designed so that noise and vibration generated by an ocean guide pipe propeller can be effectively reduced, the bearing efficiency is greatly improved, the structural weight is reduced, the underwater bearing and corrosion resisting performance is improved, the service cycle is longer, and the seawater corrosion resistance is more excellent.

Description

technical field [0001] The invention relates to the technical field of marine ship equipment, in particular to a three-dimensional braided composite marine conduit and a preparation method thereof. Background technique [0002] With the development of resources and the development of the country, the marine environment has received more and more attention from all walks of life. Marine ships need the technology of ducted propellers in their daily operations. Standardized guidance, and at the same time, it can protect the internal propeller to a certain extent. [0003] Nowadays, most ducts are mostly made of copper alloy, which is not only heavy but also often accompanied by loud noises during ship propulsion. The source of noise is not only from the noise of propellers, but also the noise insulation performance of round pipes is also concerned by all walks of life. main problem. The noise generated by ducted propellers is often fatal for marine ships used in military affa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D23/00B63H5/15
CPCB29D23/001B63H5/15
Inventor 伍立立张典堂宗晟
Owner 宜兴市新立织造有限公司