CN2377833Y

CN2377833Y - Deep-sea submersible net cage

Info

Publication number: CN2377833Y
Application number: CN99213284U
Authority: CN
Inventors: 翟力平
Original assignee: HAINAN RUIFA DONGFANG MARINE INDUSTRY Co Ltd
Current assignee: HAINAN RUIFA DONGFANG MARINE INDUSTRY Co Ltd
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-05-17
Anticipated expiration: 2009-06-18

Abstract

The utility model relates to a net cage for fish culture, particularly a deep-sea submersible net cage which can be used for the fish culture in a deep sea of which the water depth is 15 to 200 mm. The utility model is composed of a water surface part and an underwater part, and is characterized in that the water surface part mainly comprises a net frame and a water-surface auxiliary device, wherein, the water-surface auxiliary device comprises a floating mark and an indicating lamp installed on the floating mark; the underwater part mainly comprises a net device and a fixing device, wherein, the fixing device comprises an iron anchor, a connecting ring and a rope. The utility model has the advantages of strong wind-wave resistant ability, high survival rate of the culture, short periodicity for the culture, stable culture environment, good quality for fish products and sea environmental protection.

Description

The deep-sea net net cage of diving

The utility model relates to a kind of fish culture cage, the particularly a kind of deep-sea that can breed fish in the deep-sea of depth of water 15-200m net net cage of diving.

According to incompletely statistics, the existing small-sized net cage of China is counted roughly 200,000, mainly is distributed in semi-enclosed inner bay, and layout is unreasonable, as 60 of Fujian, 000 net cage is concentrated to be distributed in Dongshan eight chi doors, Xiamen and to burn all inner bays in minority sea area such as fork before Australia, the Fuding of small island, Pingtan Zhu Yukou, Fuqing Ke Yu, Liaanjiang county Qian Yu, Ningde three, layout shortage centralized guidance and management, and be provided with too intensive, because effectively the fish stocking density of water body is excessive, cause output to descend, disease takes place frequently.In addition since at present the sea area that is provided with of the small-sized net cage that uses of China cause current not smooth all at offshore or inner bay, local severe depletion of oxygen, residual bait and fish excreta can not transfer out with current rapidly, polluted-water jeopardizes fish existence.In fact, the disease problem has become a key factor of restriction China marine fish cage culture, the disease of the various fish that it has been established that has tens kinds, only 37 kinds of diseases have just been found in the investigation of Guangdong cage culture grouper, the porgy disease is seen in nearly 20 kinds of also having of report, wherein parasitic insect pests such as grouper bloat, the disease of spinning, canker, tail, fin rot and cryptonucleus insect, Trichodina, argulus are comparatively common, popular wide, harm is big, often causes the fish kill of cage culture.1989 are only Dongshan, Fujian and two counties, Pingtan because all diseases cause the cage culture fish kills, and direct economic loss surpasses 5,000,000 yuan, enters the nineties, and the disease of cage culture fish is even more serious.Though the parties concerned are doing a lot of work aspect the marine fish disease control, the cause of disease to some diseases, pathological study has also been obtained certain effect, but on the whole, most diseases still do not have the active drug treatment at present, should rely mainly on prevention to disease, and it is pure and fresh that most important measure keeps culturing sea area water quality exactly, pollution-free, current are unimpeded.In addition, the net cage layout is wanted rationally, and it is moderate that density is set, and plant will shift to the off-lying sea.

The purpose of this utility model is to overcome above-mentioned shortcoming, and the deep-sea of the wind wave resistance better performances that a kind of adaptation breeds fish at the deep-sea of the depth of water 15-200m net net cage of diving is provided.

The purpose of this utility model is achieved in that

A kind of deep-sea net net cage of diving is circular configuration, by the water surface and under water two parts form, it is characterized in that:

1, water surface part: mainly comprise rack and water surface servicing unit, wherein rack is made up of two circles that float on the surface or the plastic round tube of multi-turn, and fixes by " L " type reinforcement, is connected with a guardrail on the top of reinforcement; Water surface servicing unit comprises buoy and the indicator lamp that is installed on the buoy.

2, underwater portion: mainly comprise netting gear and fixture, wherein netting gear is made up of two parts: the cylinder shape netting gear on top and the pyramid type netting gear of lower part, the cylinder shape netting gear hangs on the rack, a netted dead fish gatherer of circle is arranged at the bottom in the pyramid type netting gear, and this gatherer is connected with guardrail on the water surface by rope; The bottom centre of the junction of cylinder shape netting gear and pyramid type netting gear and pyramid type netting gear is hung with the weight of several symmetrical distributions respectively; Fixture comprises anchor, connecting ring and rope, and each anchor is tied in the seabed deeply, and by connecting ring and rope net cage is fixed.

The latent net net cage in deep-sea is compared with traditional small-sized net cage that China uses, and has following advantage and characteristics:

1, capacity of anti-storm is strong, and the scope of application is wide.The net plant that dives can be set in the vast marine site of depth of water 15-200m, push mariculture industry to off-lying sea and deep-sea.

2, carrying capacity is big, the yield per unit area height.A circumference 60m nets the latent net of dark 10m, and single step of releasing seedling amount can reach 100,000 tails, and one time output can reach 50T, the highest reached at 70T; And circumference 100m nets the latent net of dark 20m, and the single step of releasing seedling can reach more than 650,000 tails.

3, the survival rate height of Yang Zhiing, fast growth, the culture-cycle is short.The survival rate of avette silvery pomfret is about 95%, and Cao's of army survival rate is about 90%, and offshore is with the kind fish, and the survival rate of putting seedling simultaneously is respectively 30% and 40% approximately; Also fast nearly a times than inner bay in the growth rate of the net Mesichthyes of diving, some fingerling can be supported both parties in a lawsuit in 1 year.

4, breeding environment is stable, and the quality of fishery-ies product is good, helps the protection of marine environment.The net of diving is cultured, and is arranged on the dark marine site of 15-200m, and depth of water flow is big; water body exchanges, and the residual bait and the ight soil of cultured fishes can in time be taken away by current, can not produce the self-pollution of breed; can guarantee to culture the environmental quality in marine site, help the protection of marine environment.

Fig. 1 is in the structural representation of state in the water for the utility model;

Fig. 2 is two connection diagrams of the present utility model.

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is further described.

As shown in Figure 1, a kind of deep-sea of circular configuration net net cage of diving, by the water surface and under water two parts form:

1, water surface part: mainly comprise rack and servicing unit, wherein form grid structure by two circle plastic round tube 1 of the floating power effect of keeping afloat, this structure is fixing by a plurality of " L " plastic reinforcement 2, is connected with a round plastic pipe as guardrail 3 on reinforcement 2 tops; Also be provided with buoy 4 and indicator lamp 5 on the water surface; buoy 4 is connected with circular stainless steel connecting ring 7 in being in water by rope and the anchor 6 in seabed; its effect is to float on the surface to show both positions in water; be beneficial to net cage and safeguard and guarantee net cage safety; indicator lamp 5 is mounted on the buoy 4, is used for indicating night the position of net cage.

2, underwater portion: mainly comprise netting gear and fixture, wherein netting gear 8 is made up of two parts: the cylinder shape netting gear on top and the pyramid type netting gear of lower part, the cylinder shape netting gear is suspended on the reinforcement 2, also connect tighten at this netting gear of water surface place, under bad weather, be unlikely to come off to guarantee netting gear 8 with the plastic round tube 1 that floats on the surface; The bottom of cylinder shape netting gear connects the pyramid type netting gear, bottom centre position in the pyramid type netting gear is provided with a miniature circular net 9 as dead fish gatherer, two ropes of these net 9 usefulness tie down, tie up on the guardrail 3 of the water surface at other two of rope, its effect is when dead fish occurring in the net cage, and dead fish can be slipped to naturally along the inclined-plane of pyramid type netting gear in this net 9, by unclamping rope and the rope of straining another side on one side, this net 9 is pulled out the water surface, and the fish of just checkmating cleans out; The bottom centre of the junction of cylinder shape netting gear and pyramid type netting gear and pyramid type netting gear hangs with the sandbag 10 that several (according to sizes of net cage) are symmetrically distributed respectively, to keep the up rightness of netting gear 8 in water as far as possible, makes the life naturally of fish interference-free.Fixture comprises anchor 6, circular stainless steel connecting ring 7 and rope 11; Determine the position and the weight of anchor 6 according to hydrologic conditions such as the geographical structures of current, seabed, generally each net cage needs four anchors 6 at least and fixes.Anchor 6 is tied in the seabed deeply, and each anchor 6 is all by a circular stainless steel connecting ring 7 and rope 11 fixed cages.All connecting rings 7 all are connected to each other with rope 11, are a chain of shape, and purpose is that to make net cage be subjected to the pulling force of anchor 6 average.As shown in Figure 2, also a plurality of net cage linear patterns can be connected in parallel.Each anchor 6 adopts buoy 4 (both being connected with rope) to show its position on the water surface with connecting ring 7, and purpose is to check directly whether anchor 6 is shifted and makes things convenient for the position of adjusting anchor 6.

Claims

1, a kind of deep-sea net net cage of diving is circular configuration, by the water surface and under water two parts form, it is characterized in that:

A, water surface part: mainly comprise rack and water surface servicing unit, wherein rack is made up of two circles that float on the surface or the plastic round tube (1) of multi-turn, and fixing by " L " type reinforcement (2), is connected with a guardrail (3) on the top of reinforcement (2); Water surface servicing unit comprises buoy (4) and is installed in indicator lamp (5) on the buoy (4),

B, underwater portion: mainly comprise netting gear and fixture, wherein netting gear (8) is made up of two parts: the cylinder shape netting gear on top and the pyramid type netting gear of lower part, the cylinder shape netting gear hangs on the rack, a netted dead fish gatherer of circle (9) is arranged at the bottom in the pyramid type netting gear, and this gatherer (9) is connected with guardrail (3) on the water surface by rope; The bottom centre of the junction of cylinder shape netting gear and pyramid type netting gear and pyramid type netting gear is hung with the weight (10) of several symmetrical distributions respectively; Fixture comprises anchor (6), connecting ring (7) and rope (11), and by connecting ring (7) and rope (11) net cage is fixed.