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Pumping system and method

A pumping system, pump unit technology, applied in the direction of pumps, pump devices, pumps with flexible working elements, etc., can solve the problems of large control and power lines, long hoses, etc., and achieve short control cables and power cables. , the effect of easy maintenance

Active Publication Date: 2020-01-07
KARMOY WINCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One disadvantage with the prior art is that large diameter pipes and hoses are required for transferring fish or biomass between the trawl and the surface vessel
Another disadvantage is that, given the fact that the distance between the trawler and the trawl can be 600 to 800 meters or more, very long hoses, control and power lines and correspondingly large storage buckets are required on the trawler

Method used

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  • Pumping system and method
  • Pumping system and method
  • Pumping system and method

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Embodiment Construction

[0047] The following description will use terms such as "horizontal", "vertical", "transverse", "rear and front", "upper and lower", "upper", "lower", "inner", "outer", " forward", "back" and so on. These terms generally refer to viewing angles and orientations as shown in the figures and are associated with normal use of the invention. These terms are used for the convenience of the reader only and should not be limiting.

[0048] figure 1 Illustrated is a fishing trawler 1 towing a trawl 2 in a body of water W, such as the sea, by means of a trawl line 3 . The trawl line is connected to the open trawl end 20 via connecting members such as booms 4 or mesh panels. The trawl comprises nets known in the art and the flow sensors 5a, 5b are arranged towards the bladder end 21 . One or more counterweights 6 are connected to the open end 20 in a manner known in the art. The reference P designates the biomass to be caught by the trawl, such as fish or krill.

[0049] The pump u...

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Abstract

A pumping system for moving a liquid, or a mixture of a liquid and one or more objects (P), from a collector device (2; 2') submerged in a body of water (W), to a receiving facility (31) comprises a first delivery line (7), a second delivery line (11) and a pump unit (9). The pump unit (9) is submerged in the body of water (W) at a first depth (d) below the water surface (S) and arranged between the collector (2; 2') and the receiving facility (31). The first delivery line (7) is fluidly connected between the collector device (2; 2') and a pump unit inlet (18). The second delivery line (11) isfluidly connected between a pump unit outlet (17) and the receiving facility (31). The pump unit is thus configured to generate suction in the first delivery line (7) and a positive pressure in the second delivery line (11). Suction in the first delivery line (7) may be increased by increasing the first depth (d) and / or by opening of the adjustable valve (30).

Description

technical field [0001] The invention relates to the field of fluid transport by means of pumping, and in particular to the transport of objects suspended by liquids. The present invention is useful for pumping such suspended objects as pellets, rocks, iron ore, food, fish, krill and other aquatic biomass. Background technique [0002] Krill is a type of zooplankton that lives in the ocean and is harvested for commercial purposes. Because of their small size, krill require trawls made of fine mesh plankton nets to catch krill. Due to the high drag created by fine mesh nets, trawling must be done at low speeds to avoid clogging and damaging the krill and nets. [0003] Initially, the krill catch is brought onto the trawler by hoisting the trawl out of the water. This causes the krill to be squeezed and thus lose a considerable portion of its fluid, which is detrimental to the quality of the catch. Later developments in this technique involved pumping krill from the bladder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K73/02A01K79/00
CPCA01K73/02A01K79/00F04B15/00F04B23/00F04B47/06F04B23/14A01K73/00
Inventor M.希斯塔德
Owner KARMOY WINCH