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Large jellyfish trawling net with winged single capsule on the surface of offshore double boats

A wing-single-vessel and surface-layer technology, applied in fishing nets, application, fishing, etc., can solve problems such as inability to meet large jellyfish, low fishing efficiency, and deep draft of large fishing vessels

Inactive Publication Date: 2018-07-13
河北省海洋与水产科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the large scale of productive fishing trawls, large fishing boats are required to be towed, and large fishing boats have a deep draft and cannot operate in shallow waters
Since the purpose of productive fishing operations is to obtain catches, the netting operations are only carried out in fishing areas where jellyfish often appear. Traditional fishing nets for large jellyfish (jellyfish) mainly include stretch nets, drift nets and other nets that use currents to complete operations. Simple and effective small-scale fishing nets such as hand-made nets, but these nets are either passively dependent on the tide, or the fishing efficiency is low, and cannot meet the requirements for emergency removal of large jellyfish outbreaks in the offshore; When connecting the railing and the dragging rail connected to the ship, it is unavoidable to avoid the hinged winding of the railing line, and it is troublesome to use and assemble, which causes certain difficulties in actual use and affects the work process

Method used

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  • Large jellyfish trawling net with winged single capsule on the surface of offshore double boats
  • Large jellyfish trawling net with winged single capsule on the surface of offshore double boats
  • Large jellyfish trawling net with winged single capsule on the surface of offshore double boats

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The large-scale jellyfish trawl net with wings and single capsule on the surface of two ships in near shallow sea of ​​the present invention, such as Figure 1-4 Shown, comprise net bag 12, key link, float 13, sinker, strut bar 14 assembly and form.

[0065] (1) Seaming of the mesh bag

[0066] The large-scale jellyfish trawl net with wings and single capsule on the surface of two ships in near shallow sea of ​​the present invention, such as Figure 1-4 Shown, comprise net bag 12, key link, float 13, sinker, strut bar 14 and assemble and form, wherein the sewing of net bag is the first step of key;

[0067] The longitudinal cross-section of the net bag 12 is elliptical and gradually shrinks from front to back. It is composed of upper wing net 1, lower wing net 2, lower support net, net body 19 and bag net 20. The fiber ply mesh thread is woven and sewed after heat-treated, stretched and shaped mesh; the mesh body 19 includes an abdominal mesh and a back mesh; the fron...

Embodiment 2

[0093] Be the assembling method of the net gear of embodiment 1:

[0094] (1) The steps of binding the rope and the net bag:

[0095] Use PE42tex8×3 double wires to sew the front of the left and right upper wing nets and the opposite sides of the upper wing net rear pieces, the front side of the middle of the long back net, the opposite sides of the left and right lower wing nets, and the lower support net at the front of the mesh bag. All the side meshes in the front of the middle are strengthened mesh by mesh, that is, the feet of the mesh mesh are attached mesh by mesh;

[0096] The left and right upper skylines 18 are two polyethylene ropes with a net length of 21.00m and a diameter of 16mm. The two ends of the ropes are inserted with eye rings with inner sleeves of the type MT0.2 deep groove collar. The length of the eye rings is not included in the upper sky ropes. Within the net length of 18, so far the preparation of the upper sky line 18 is completed;

[0097] The u...

Embodiment 3

[0119] For the operation steps of the trawling net of winged single-vessel jellyfish on the surface layer of the offshore double ship of embodiment 1, comprising:

[0120] 1. Working ship

[0121] Due to the relatively small scale of the trawling net of winged single-vessel jellyfish on the surface of the offshore double ship, a ship with a total length of about 15.00m, a molded width of about 3.50m, a molded depth of about 1.00m, a gross tonnage of 10Rt, and a main engine power of 14.70kw can operate, but it needs to use Two identical boats operating. One of them is a net-releasing boat and a net-carrying boat, and the other is a net-carrying boat.

[0122] 2. Stack net

[0123] Stack the net on the net platform at the stern, with the net opening facing forward, the lower and sinker nets at the bottom, the upper and floater nets at the top, the left and right wing nets at both sides, the net body at the middle layer, and the bag net at the top .

[0124] 3. Release the ne...

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PUM

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Abstract

The invention relates to a large-scale jellyfish trawling net with wings and a single bag on the surface of an offshore double ship, which is made by binding a net bag, a rope, a float, a sinker and a pole. The net bag includes a net body, a bag net and a wing net. The ropes include a drag line, an upper line, a lower line, a float line, a sinker line, an upper space line, and a lower line. The above-mentioned wing net, abdominal net and front net body all adopt double-anchor single-piece net with a mesh of 2a=130.0mm. The offshore twin-vessel surface-layer winged single-capsule jellyfish trawling net of the present invention has the advantages of miniaturization, quickness and flexibility, easy operation, active hunting, large-scale operation, and high fishing efficiency.

Description

technical field [0001] The invention relates to a large-scale jellyfish salvage net for a coastal bathing beach and its surrounding sea areas, in particular to a large-scale jellyfish trawling net for quickly removing outbreaks in a coastal bathing beach and its surrounding sea areas. Background technique [0002] With the global warming and the intensification of environmental pollution, the marine ecological environment has been seriously affected, the population of large jellyfish in the ocean has increased significantly, and large jellyfish outbreaks often occur in various sea areas around the world. In recent years, incidents of large-scale jellyfish entering the bathing beach in coastal tourist resorts across the country and affecting the environment of the bathing beach, and poisonous jellyfish (such as sand jellyfish) stinging tourists have often occurred, which has a certain negative impact on the coastal summer and summer tourism industry. In order to ensure the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K73/02
Inventor 赵振良郑向荣赵春龙孙桂清庄申杨超臣李燕郝志毅
Owner 河北省海洋与水产科学研究院