Vacuum continuous pumping system

Abstract

The invention provides a vacuum continuous pumping system. The system comprises two pumping system assemblies with the same structure and a shrimp water separator connected to the pumping system assemblies; each pumping system assembly comprises an euphausia net, a vacuum hose, a plurality of pipelines, a vacuum tank, a first compressor, a second compressor and a silencing exhauster; a net openingof the euphausia net is connected to a trawl wire, one end of the vacuum hose is installed at a bag end of the euphausia net, and the other end of the vacuum hose is connected to a shrimp water inletof the vacuum tank through the pipeline; the first compressor and the second compressor are connected to the vacuum tank through pipelines, and the first compressor and the second compressor are usedfor sucking or pressurizing the vacuum tank; and the silencing exhauster is connected to the vacuum tank, the first compressor and the second compressor through the pipelines, and the silencing exhauster is used for sucking / exhausting the air sucked / exhausted by the first compressor and the second compressor. According to the system, the fishing amount and the fishing efficiency are improved through the continuous pumping, and the quality of the euphausia is improved.

Description

Technical field [0001] The invention relates to a krill boat pumping system, in particular to a vacuum continuous pumping system. Background technique [0002] The Antarctic Krill Division is 18.4 million kilometers in Antarctica 2 The sea area has a resource of 3 billion tons and a catchable amount of 100 million tons. The annual fishing limit is basically maintained at about 900,000 tons. The actual annual catch in the world does not exceed 200,000 tons, and China does not exceed 30,000 tons. [0003] The annual catch is mainly limited by the fishing method. At present, there are two main fishing methods for Antarctic krill: the traditional side beam trawl and the traditional net plate trawl. Compared with the traditional net plate trawl, the side quilt trawl is more efficient. The catch is large, but both fishing methods have disadvantages: [0004] Frequent lifting and releasing of nets is required, and the operating time of lifting and releasing nets accounts for almost half of...

AI Technical Summary

Problems solved by technology

[0004] The net needs to be lifted and released frequently, and the operation time of lifting and releasing the net occupies more than half of the entire fishing time, which restricts the effective trawling time and affects the fishing efficiency;

[0005] There are many operators, the operation is complicated, and the work intensity is high;

[0006] Traditional broadside girder trawls are not suitable for deep trawls, and traditional panel trawls are not suitable for surface trawls, and the fishing efficiency is low;

[0007] The traditional side girder trawl needs to be extended outboard from the ship, and the net gear will exert a lateral overturning moment on the ship, which will affect the stability of the ship and bring safety hazards;

[0008] Krill is easily crushed, affecting the quality of krill;

[0009] The interval between secondary fishing is long, and the krill is stored for a long time, which seriously affects the quality of krill;

[0010] Frequent use of deck trawling machinery not only reduces its life span, but also consumes energy, which is neither environmentally friendly nor economical

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