CN103190382A - Technology of absorbing fish by cod end for large distant-water trawler - Google Patents

Abstract

The invention relates to a technology of absorbing fish by a cod end used for the trawl fishing of a large distant-water trawler, and belongs to the fields of farming, forestry, husbandry, and fishing. During a good harvest fishing time, large net heads of large trawlers used for catching scads in the south pacific and catching haddock in the north pacific can be frequently used for catching 500-600 tons fishing goods by a single net, and the weight of caught fishing goods by a single net sometimes can even reach up to 800 tons. Each large net head contains too many fishing goods, so that the fishes in each cod end are impossible to be directly pulled on a deck of the trawler. The technology of absorbing fish by cod end adopts an axial-flow type fish absorbing pump driven in a hydraumatic manner to directly absorb fish in the cod end into a fishhold of the trawler.

Description

A kind of net capsule clingfish technology of large-scale distant-water trawler

Affiliated technical field

The trawlnet that the present invention relates to a kind of large-scale distant-water trawler is fished for, the net capsule clingfish technology when especially a kind of large-scale distant-water trawler trawlnet is fished for.Belong to the farming, forestry, husbandary and fishing field.

Background technology

Large-scale distant-water trawler, the slideway mode of operation, fishing boat generally has two to three layers of deck.When fishing for operation during hauling, when part net capsule enters the deck afterbody by stern chute, utilize the mast suspension hook net capsule of slinging.The dodge gate that one hydraulic pressure opening is arranged below the fishing boat mizzen mast, catches can directly be poured in the fish hold of deck of sub-cellar.When catches for a long time, then need through the pulley of ship side bollard the net capsule is dragged upper deck.

Above-mentioned mode of operation, not only the hauling time long, also need to dispose powerful winch on the ship and can realize that the net capsule is dragged to the operation on the deck.And the extrusion process when fishing goods process tows on the deck can produce certain fish loss rate, influences the quality of fishing goods.

Even like this, when running into big net head (single net left and right sides fishing above 200 tons goods), adopt this mode of operation that directly the net capsule is dragged on the deck inapplicable, so run into the big shoal of fish, also can only receive net as early as possible and avoid net to drag too greatly breaking ship.And the net capsule clingfish technology of a kind of large-scale distant-water trawler trawlnet when fishing for just solved this problem.

Summary of the invention

Fish for the large-scale trawler that scad and North Pacific fish for haddock in the South Pacific Ocean, in the fish phase of good harvest, often have the amount of fishing of 500～600 tons of fishing goods of single net, sometimes in addition the fishing goods of single net up to 800 tons.

The present invention is the net capsule clingfish technology of a kind of large-scale distant-water trawler trawlnet when fishing for, and is to adopt a kind of axial-flow type fishpump that drives through hydraulic way, directly fish is drawn onto in the net capsule in the fish hold on the ship.

The present invention fishes for the trawlnet of prior art and compares, and advantage is as follows:

1) no matter nets the head size, can adopt this clingfish mode of operation, be particularly useful for big net head;

2) it is fast to play network process speed, clingfish effect height.The clingfish mouth diameter of fishpump can reach 450mm, and output is up to 3500 tons/hour.

3) avoid the net capsule to be dragged to the complex operations process on deck, avoided the towing above deck of net capsule, thereby reduced the breakage rate of netting gear;

4) but be fit to fish and the shrimps that most trawlnets is fished for.

Description of drawings

Fig. 1 net capsule clingfish system diagram

Fig. 2 net capsule clingfish system effect figure

1. fishpump, 2. net capsule, 3. body, 4. fish pump crane, 5. net capsule winch, 6. fish pump Hydraulic Station, 7. hydraulic hose, 8. fish and water separator, 9. clingfish flexible pipe, 10. deck

Embodiment

The present invention mainly is made of fishpump (1), fish pump crane (4), net capsule winch (5), fish pump Hydraulic Station (6) and fish and water separator (8).The said equipment is installed on the fishing boat deck (10), and wherein fish pump (1) is movable, is locked on the special stand of operating platform in the time of inactive at ordinary times.

After the towing process finished the networking of fishing goods, body (3) major part was dragged on the deck, and the fishing cargo consolidation is among net capsule (2).Operating personnel move net capsule (2) afterbody on the operating platform of deck (10) to by net capsule winch (5), then net capsule (2) afterbody are opened, and link together with the clingfish mouth of fishpump (1), winch to fish pump (1) marine by fish pump crane (4) again.

Fish pump (1) is driven by hydraulic hose (7) by fish pump Hydraulic Station (6), and the fishing goods in the net capsule (2) is drunk up by clingfish flexible pipe (8) with seawater, is delivered in the fish and water separator (9).Fish and water separator (9) is separated to water marine greatly, and the fishing goods is transported in the fish hold.Along with the fishing goods not the section quilt suct ship, body (3) and net capsule (2) are by successively towing upper deck (10), fish in the net capsule (2) is continued arrives in net capsule (2) afterbody, and being inhaled among the fish pump (2) successively, sucts ship and finishes the process of fishing for thereby will put in order netting.

Claims (1)

1. what the present invention relates to is the net capsule clingfish technology of a kind of large-scale distant-water trawler trawlnet when fishing for.

The present invention mainly is made of fishpump (1), fish pump crane (4), net capsule winch (5), fish pump Hydraulic Station (6) and fish and water separator (8).The said equipment is installed on the fishing boat main deck (10), and wherein fish pump (1) is movable, is locked on the special stand of operating platform in the time of inactive at ordinary times.

After the towing process finished the networking of fishing goods, body (3) major part was dragged on the deck (10), and the fishing cargo consolidation is among net capsule (2).Operating personnel move net capsule (2) afterbody on the operating platform of deck (10) to by net capsule winch (5), then net capsule (2) afterbody is opened, link together with the clingfish mouth of fishpump (1), by fish pump crane (4) fish pump (1) is winched to b.s.l..

Fish pump (1) is driven by hydraulic hose (7) by fish pump Hydraulic Station (6), and the fishing goods in the net capsule (2) is drunk up by clingfish flexible pipe (8) with seawater, is delivered in the fish and water separator (9).Fish and water separator (9) is separated to water marine greatly, and the fishing goods is transported in the fish hold.Along with the fishing goods not the section quilt suct ship, body (3) and net capsule (2) are by successively towing upper deck (10), fish in the net capsule (2) is continued arrives in net capsule (2) afterbody, and being inhaled among the fish pump (2) successively, sucts ship and finishes the process of fishing for thereby will put in order netting.

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