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Straight obpyriform bulbous bow structure of ocean fishing vessel

A straight, pear-shaped technology, applied in the field of ships, can solve the problems of energy consumption and waste of ocean-going fishing boats, and achieve the effects of reducing hull resistance, saving costs, and broadening market prospects

Inactive Publication Date: 2013-12-11
ZHEJIANG OCEAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is the serious shortage of energy consumption of existing ocean-going fishing boats

Method used

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  • Straight obpyriform bulbous bow structure of ocean fishing vessel
  • Straight obpyriform bulbous bow structure of ocean fishing vessel
  • Straight obpyriform bulbous bow structure of ocean fishing vessel

Examples

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] This example is an 8.6m wide steel pelagic squid fishing boat, such as figure 1 As shown, a straight inverted pear-shaped bulbous bow structure of an ocean-going fishing vessel includes a hull 1 and a bulbous bow 2. The front part of the hull 1 is provided with a straight bulbous bow 2, and the cross-sectional shape of the bulbous bow 2 is inverted pear shape (eg figure 2 ).

[0015] The type value parameters of bulbous bow 2 are: relative protruding length=5.5%, relative immersion depth=17.5%, bulb area ratio=11.33%, and the relative protruding length is the distance from the most front end of the bulbous bow to the bow column and the bow The ratio of the distance between the two stern columns; the relative immersion depth is the ratio of the distance between the center of the bulbous nose and the bottom line of the ship at the design draft a...

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Abstract

The invention discloses a straight obpyriform bulbous bow structure of an ocean fishing vessel. The straight obpyriform bulbous bow structure comprises a vessel body and a bulbous bow, wherein the straight bulbous bow is arranged at the front part of the vessel body; the cross section of the bulbous bow is obpyriform; offset parameters of the bulbous bow are that the relative protruded length is 5.5 percent, the relative immersed depth is 17.5 percent and the area ratio of a bulb is 11.33 percent. The bulbous bow structure can generate a more effective additional wave system and realizes favorable interference with a wave system generated by a forward-inclined bulbous bow, thus reducing the resistance of the vessel body. The fuel amount of the ocean fishing vessel is reduced under the same work condition; economic benefits are increased by reducing cost; compared with the current ocean fishing vessel, the ocean fishing vessel disclosed by the invention has the characteristics that the same navigation speed can be realized at a lower host power, and thus the aim of saving fuel is achieved.

Description

technical field [0001] The invention relates to an ocean-going fishing boat, mainly a straight inverted pear-shaped bulbous bow structure of the ocean-going fishing boat, and belongs to the technical field of ships. Background technique [0002] Pelagic fishery has become a hot spot in the world's fishery development and has entered into extensive and comprehensive development. Pelagic fishery has increasingly highlighted its significance in expanding the production space of Chinese fishermen, increasing catches, and participating in the distribution of global marine resources. On the other hand, the investment of an ocean-going fishing vessel is more than 10 million yuan, and the fishing cost of a voyage is as high as tens or even millions of yuan; among them, the cost of fuel oil accounts for about 70%. The main reason is that my country's ocean-going fishing boats are generally outdated and aging, and the resistance is high, resulting in serious waste of energy consumpt...

Claims

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Application Information

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IPC IPC(8): B63B1/06
Inventor 张晓君李刚强
Owner ZHEJIANG OCEAN UNIV
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