CN101617637B - Net cage for sea farming - Google Patents
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- CN101617637B CN101617637B CN2008101284467A CN200810128446A CN101617637B CN 101617637 B CN101617637 B CN 101617637B CN 2008101284467 A CN2008101284467 A CN 2008101284467A CN 200810128446 A CN200810128446 A CN 200810128446A CN 101617637 B CN101617637 B CN 101617637B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a net cage for sea farming. In a net cage for sea farming for farming fish and shellfish, the net cage for sea farming is likely to change volume violently and swing and marine organisms are easy to adhere as a chemical fiber net has small rigid and is light; in addition, even under the condition of using a sea water tolerance metal wire net, a plurality of net cages for sea farming are likely to change volume and swing in the exiting hanging structure. In the invention, a floater (4) is arranged on tubing (2a, 2b and 2c) connected with a truss structure in an attached way to form an upper frame (2), a lower frame (3) formed by the tubing is arranged correspondingly to the upper frame (2) ; the lower frame (3) and the upper frame (2) are used to expand a cage body (8) formed by a metal wire net (5) composed of a side surface part (8a) and a bottom surface part (8b) in the sea; meanwhile, the metal wire net (5) is formed by weaving metal wires (6) having sea water tolerance and large specific gravity.
Description
Technical field
The present invention relates to impale certain sea area and in this net, carry out the structure of the net cage for sea farming that fish and shellfish cultures with net.
Background technology
In the past, relevant the frame that is made up of tubing is swum near the seawater face, and maintained the net (below be called " suspension construction ") at the end from this sash hanger, the technology of the net cage for sea farming of breed fish is by known (for example with reference to patent documentation 1) in this net.And, usually identical as net with fishing net with sea water resistance, be to use net that chemical fibres such as nylon and polypropylene are woven into (below be called " chemical fibre net "), try hard to the lightweight of net cage for sea farming.Patent documentation 1: TOHKEMY 2001-218538 communique
Summary of the invention
Invent problem to be solved
But, the chemical fibre net of above-mentioned that kind, though in light weight, folding easily, the good work of carrying and assembling net cage for sea farming etc., rigidity is low, can not give enough form retentivities and stability is set net cage for sea farming.Therefore, exist following problem, promptly; Owing to reasons such as current, trend, waves, rapid volume-variation and swing take place in net cage for sea farming easily, and foster fish receives overstimulation; The bait that spues and once preying on, degradation under the feed efficiency not only hinders and grows normally; And, must put mantissa in a suitable place to breed and set fewly, so production efficiency is suppressed lowly because consider above-mentioned volume-variation; And then, can only net cage for sea farming be arranged near near the tranquil inland sea of wave the breed difficulty in the peace and quiet seawater in coastal waters.
In addition, in the chemical fibre net, adhere to marine organisms such as sea grass, shellfish easily, thereby mesh diminishes, the trafficability characteristic variation of maritime interior waters between short-term, or the intensity of chemical fibre net self is low, is swum in damage such as wood or shark in the water easily.Therefore, algae processing and frequent draping be need prevent, the manufacturing cost that causes net cage for sea farming and the problem of maintenance cost increase existed.
And then; Replace such chemical fibre net; Also can enumerate the gauze that forms through the wire that will be woven into the high sea water resistance of strength ratio chemical fibre is used for net cage for sea farming and guarantees the form retentivity and prevent that sea grass, shellfish etc. from adhering to and damaged countermeasure; But as in the past, the suspension construction of near frame suspension of making the seawater face, swimming and maintenance net, under big situation such as current, trend, wave; A lot of net cage for sea farming generation volume-variation, exist aforesaid that kind, can not avoid reliably feed efficiency descend, hinder grow, problem that production efficiency descends.
In order to solve the means of problem
In order to solve above-mentioned problem, present inventor etc. have carried out wholwe-hearted research, and the result finds; As net cage for sea farming, see that from the form retentivity and the viewpoint that stability is set of net cage for sea farming following structures is only; Promptly; Heavy lower frame is installed in the bottom surface sections of net, and the side surface part that relies on this lower frame to draw in the net is downwards opened and is established etc., gives tension force (being " establish structure " to call such structure in the following text) to net; On this basis, will be assembled into on-deformable shape by the gauze that sea water resistance height and heavy wire constitute.
Promptly; In technical scheme 1 of the present invention; A kind of net cage for sea farming is provided, and this net cage for sea farming is the net cage for sea farming that impales certain sea area, in this net, carries out the breed of fish and shellfish with net, it is characterized in that; Float is attached on the tubing that is being linked by truss structure forms upper ledge; Relatively dispose the lower frame that constitutes by tubing with this upper ledge, the casing of the gauze system that will constitute by side surface part and bottom surface sections by this lower frame and above-mentioned upper ledge open be located at marine, this gauze braiding sea water resistance and heavy wire and form.In technical scheme 2, above-mentioned wire covers plating Zn layer and constitutes on iron wire, and simultaneously, the adhesion amount of this plating Zn layer is 350～700g/m
2In technical scheme 3, above-mentioned wire is with comprising that Al is that 8～15wt% and the Zn that contains inevitable composition are that the plating Zn-Al alloy layer of 85～92wt% covers on the iron wire and constitutes, and simultaneously, the adhesion amount of this plating Zn-Al alloy layer is 350～700g/m
2In technical scheme 4, above-mentioned wire is to adopt to comprise that Cu is that 63～67wt%, Sn are that 0.3～0.8wt%, Ni are that 0.1～0.7wt% and the Zn that comprises inevitable composition are the Cu alloy silk of 31～36wt%.In technical scheme 5, the mesh of above-mentioned gauze directly is that the metal wire knitted ramify inside dimension of 2～5mm is that the rhombus of 20～70mm forms with silk.
The effect of invention
The present invention as above suchly constitutes, so have the effect shown in following.That is, according to technical scheme 1 of the present invention, because said net cage for sea farming is the net cage for sea farming that impales certain sea area, in this net, carries out the breed of fish and shellfish with net; Wherein, Float is attached on the tubing that is being linked by truss structure forms upper ledge, relatively dispose the lower frame that constitutes by tubing with this upper ledge, the casing of the gauze system that will constitute by side surface part and bottom surface sections by this lower frame and above-mentioned upper ledge open be located at marine; This gauze braiding sea water resistance and heavy wire and form; So can on the basis that constitutes the casing that makes net make on-deformable shape by upper and lower frames, give big tension force, simultaneously; Through forming this net by heavy gauze; Can make net cage for sea farming have high form retentivity with stability is set, even in big situation such as current, trend, waves, rapid volume-variation and swing also take place in net cage for sea farming hardly.Therefore, the fish of supporting can not receive exceedingly to be stimulated, and the bait preyed on of can preventing reliably to spue is eaten and then reduced feed efficiency and grow normally with hindering; And then, need not consider volume-variation, can set production efficiency high, can also net cage for sea farming be arranged on chopping coastal waters on this basis, can in peace and quiet seawater, culture.And then; Gauze is because of compare marine organisms such as being not easy to adhere to sea grass, shellfish with the chemical fibre net; Intensity is also high; So do not exist mesh diminish, between short-term the trafficability characteristic variation of maritime interior waters and situation about damaging because of wood or the shark etc. that swim in the water, need not prevent algae processing and frequent draping, can reduce the manufacturing cost and the maintenance cost of net cage for sea farming.
According to technical scheme 2 of the present invention, because above-mentioned wire covers plating Zn layer and constitutes on the iron wire, simultaneously, the adhesion amount of this plating Zn layer is 350～700g/m
2So, can guarantee coating close attachment property, prevent that sea water resistance from descending; Simultaneously; Can seek to reduce the needed maintenance cost of draping with prolonging during till consuming up to the coating on the iron wire, on this basis can also not draping during culturing; Prevent the harmful effects such as anxiety that fish and shellfish receives when moving replacing, can seek the raising of feed efficiency and grow with healthy growth.
According to technical scheme 3 of the present invention; Because above-mentioned wire is with comprising that Al is that 8～15wt% and the Zn that contains inevitable composition are that the plating Zn-Al alloy layer of 85～92wt% covers on the iron wire and constitutes; Simultaneously, the adhesion amount of this plating Zn-Al alloy layer is 350～700g/m
2, all good wire of processability when so sea water resistance can be provided with braiding.
According to technical scheme 4 of the present invention; Because above-mentioned wire is to adopt to comprise that Cu is that 63～67wt%, Sn are that 0.3～0.8wt%, Ni are that 0.1～0.7wt% and the Zn that comprises inevitable composition are the Cu alloy silk of 31～36wt%, so can provide sea water resistance, particularly sterilization to prevent the good wire of algae property.
According to technical scheme 5 of the present invention; Owing to the mesh of above-mentioned gauze is directly to be that the metal wire knitted ramify inside dimension of 2～5mm is that the rhombus of 20～70mm forms with silk; So can use the system net to be easy to the gauze of rhombus; Correspondingly change the intensity of gauze and the size of mesh be provided with place, the kind of breeding fish and the size etc. of net cage for sea farming, the trafficability characteristic that can guarantee to net maritime interior waters, simultaneously; Prevent that the fish of supporting from escaping from mesh, can realize the purpose that the fish of supporting grows up healthy and sound and grows.
Description of drawings
Fig. 1 is the overall perspective view of the integrally-built net cage for sea farming of expression net cage for sea farming of the present invention.Fig. 2 is the part stereogram of upper ledge of the installation situation of expression buoyancy aid.Fig. 3 is the amplification front view of gauze.
[symbol description]
1: net cage for sea farming 2: upper ledge 2a, 2b, 2c: tubing 3: lower frame 4: float 5: gauze 6: wire 8: casing 8a: side surface part 8b: bottom surface sections 9: mesh 9a: the mesh inside dimension
Embodiment
Below, embodiment of the present invention is described.Fig. 1 is the overall perspective view of integrally-built net cage for sea farming of expression net cage for sea farming of the present invention, and Fig. 2 is the part stereogram of upper ledge of the installation situation of expression buoyancy aid, and Fig. 3 is the amplification front view of gauze.
At first, according to Fig. 1 to Fig. 3 the structure of net cage for sea farming 1 of the present invention is described.As shown in Figure 1, net cage for sea farming 1 is by constituting with lower component: upper ledge 2; Be attached to a plurality of buoyancy aids 4,4...... on this upper ledge 2; Top edge is installed in the side metal silk screen 5a on the upper ledge 2; Be installed in the lower frame 3 of the lower limb of this side metal silk screen 5a; Open the bottom surface gauze 5b that is located in this lower frame 3.
And; As shown in Figure 2; Between the first framework 2a and the second framework 2b, between the second framework 2b and the 3rd framework 2c, and the 3rd framework 2c and the first framework 2a between, respectively by as the first fixed part 7a of tubing, the second fixed part 7b, and the 3rd fixed part material 7c through bindings such as welding; By these first fixed parts 7a, the second fixed part 7b, and the fixed part material 7 that constitutes of the 3rd fixed part material 7c form truss structure, truss structure has constituted the upper ledge 2 with high rigidity thus.
Above-mentioned buoyancy aid 4 is that the foam styrene littler than sea water specific gravity is configured as columned parts, and the top of this buoyancy aid 4 is clamped between the above-mentioned first framework 2a and the second framework 2b by not shown installed part.In addition, this buoyancy aid 4 also can be that timber or inside are empty metal buckets or plastic containers etc., so long as can the structure of the enough buoyancy of net cage for sea farming 1 effect be got final product, is not by the parts that limit especially.
Above-mentioned side metal silk screen 5a be with after the rectangular gauze bending with engaged at end and the parts of the side's of being configured as tubular; The top edge of this side metal silk screen 5a is fixed on the second framework 2b of above-mentioned upper ledge 2 by not shown installed parts such as wire; Simultaneously, fixing at the lower limb of side metal silk screen 5a tubing is being assembled into square lower frame 3.
And; Rely on the weight of this lower frame 3; Constituted and given opening of tension force usually downwards to above-mentioned side metal silk screen 5a and establish structure, opened in the inboard of above-mentioned lower frame 3 and establish bottom surface gauze 5b, and then; Through being formed on by the gauze 5 that these side metal silk screen 5a and bottom surface gauze 5b constitute on the casing 8 that constitutes through above-mentioned upper and lower frames 2,3, by side surface part 8a and bottom surface sections 8b, can gauze 5 be constituted the parts that the distortion that produces because of external force had favorable rigidity.In addition,, generally use hot-dip Zn steel pipe as above-mentioned tubing, still, so long as heavy to a certain degree and the good structure of sea water resistance gets final product, its kind and size are not limited especially.
As shown in Figure 3; Above-mentioned gauze 5; Be to use known automatic metal silk screen braider to weave many one metal wires 6 arranged side by side in wave shapely; Make the wire 6,6 of adjacency interweave at their bend 6a, 6a each other, form the gauze with diamond-mesh 95 of making net than hexagon gauze and curling gauze easily.
Length (following is " mesh the inside dimension ") 9a on one side of the silk footpath 6b of above-mentioned wire 6 and the inboard of mesh 9; Be to set according to the cultivating conditions such as place, the kind of breeding fish and size that are provided with of net cage for sea farming 1; But if possible, preferably the silk footpath is that 2～5mm, mesh inside dimension are 20～70mm.This be because, for silk footpath 6b, if silk footpath 6b not enough 2mm, then the intensity of gauze 5 wood or shark low, that gauze 5 is swum in the water easily damages, the fish that causes supporting escapes, so need carry out frequent draping; If but a silk footpath 6b surpasses 5mm, then the bending machining of wire 6 difficulty, knitmesh are difficult, and too heavy, and the operation property when carrying and assembling net cage for sea farming etc. is bad.In addition, for mesh inside dimension 9a, if the not enough 20mm of mesh inside dimension; Mesh just narrows down in then between short-term, and the trafficability characteristic variation of seawater need be prevented algae processing and frequent draping; If but the mesh inside dimension surpasses 70mm, the fish of then supporting might escape from mesh 9.
Promptly; The mesh 9 of above-mentioned gauze 5 directly is that to be woven into mesh inside dimension 9a be that the rhombus of 20～70mm forms for the wire 6 of 2～5mm with silk; So can use the system net to be easy to the gauze 5 of rhombus; With net cage for sea farming 1 be provided with that place, the kind of breeding fish and size etc. correspondingly change the intensity of gauze 5 and as the mesh inside dimension 9a of the size of mesh 9, the trafficability characteristic of the seawater in can guaranteeing to net, meanwhile; Can prevent that the fish of supporting from escaping from mesh 9, can realize the purpose that the fish of supporting grows up healthy and sound and grows.
For the kind of above-mentioned wire 6, though limit especially,, on the basis of sea water resistance, heavy for well, preferably proportion is more than 5.This is because if the proportion of wire 6 is too small, then gauze 5 self is in light weight; Because current, trend, wave etc., so gauze 5 is swung easily, the fish of supporting receives exceedingly to be stimulated; Degradation under the feed efficiency, the growth normally of foster fish can be hindered.As the wire of the sea water resistance of such light specific gravity, can enumerate the Ti silk, Ti alloy silk, Al silk, light metal silks such as Al alloy silk.In addition; Even such light metal silk; Can prevent to a certain extent that also above-mentioned gauze 5 from swinging though become the countermeasure that heavily waits through the weight of taking to make above-mentioned lower frame 3; But owing to use the high metal of price, so cause the manufacturing cost of gauze 5 to increase, be used to make weight to become the maximization etc. of heavy lower frame 3 easily.
Promptly; Impale certain sea area at the gauze that is used as net 5, in this gauze 5, carry out in the net cage for sea farming 1 of breed of fish and shellfish,, and relatively dispose the lower frame 3 that constitutes by tubing with this upper ledge 2 because will be attached to last and formation upper ledge 2 as the buoyancy aid 4 of float as the framework 2a, 2b, the 2c that connect to the tubing of truss structure; Through this lower frame 3 and above-mentioned upper ledge 2; 8 of the casings of gauze 5 systems that will be made up of side surface part 8a and bottom surface sections 8b be located at marine, and simultaneously, this gauze 5 is braiding sea water resistance and heavy wire 6 and form; So; Can gauze 5 be made the casing 8 of on-deformable shape through upper and lower frames 2,3, and give it with big tension force, simultaneously; Through this gauze 5 is formed by heavy gauze 5; Can give the high form retentivity of net cage for sea farming 1 and stability is set, even under big situation such as current, trend, wave, rapid volume-variation and swing also can take place in net cage for sea farming 1 hardly.Therefore, the fish of supporting can not receive exceedingly to be stimulated, and degradation hinders normal growth growth under the bait that can prevent reliably to have preyed on because of spuing, the feed efficiency; And then; Needn't consider volume-variation, can set production efficiency high, on this basis; Can also net cage for sea farming 1 be arranged on chopping coastal waters, can be in peace and quiet seawater breeding.And then; Gauze 5 is owing to be not easy to adhere to marine organisms such as sea grass, shellfish than chemical fibre net; Intensity is also high; So do not exist because of the narrow down trafficability characteristic variation of between short-term maritime interior waters or of mesh 9 because of wood or the shark etc. that swim in the water damage, need not prevent algae processing and frequent draping, can make the manufacturing cost and the maintenance cost minimizing of net cage for sea farming 1.
Then, above-mentioned wire 6 is described.In wire 6,, be preferably 350g/m to the plating Zn layer of iron wire enforcement, the adhesion amount of plating Zn-Al alloy layer
2Above 700g/m
2Below.This be because, if will plate Zn layer, plating Zn-Al alloy be placed on marine, though then suppress to plate the corrosion of material iron wire through sacrificing antisepsis, if adhesion amount deficiency 350g/m
2, then coating can be use up by internal consumption between short-term, and the replacement cycle of gauze shortens; The needed maintenance cost of draping increases; And, during the breed till fish and shellfish grows to the adult with commodity value in, needing under the situation of draping; Because be accompanied by the mobile replacing of this draping, fish and shellfish can receive harmful effects such as anxiety.On the other hand, if adhesion amount surpasses 700g/m
2, the then lip-deep coating close attachment property of iron wire decline, crack etc. takes place and causes the part to be peeled off in coating when netting, and sea water resistance descends on the contrary.
In addition, the composition of above-mentioned plating Zn-Al alloy layer preferably, Al is 8～15wt%, the Zn that comprises inevitable composition is 85～92wt%.This be because, if the not enough 8wt% of Al containing ratio is then little through the effect of adding the sea water resistance that Al improves; On the other hand, if the Al containing ratio surpasses 15wt%, the coating that then forms is hard and crisp, and processability descends, and during netting, crack etc. takes place coating easily.
In addition, the composition of above-mentioned Cu alloy silk preferably, Cu is 63～67wt%, Sn is 0.3～0.8wt%, Ni is 0.1～0.7wt%, the Zn that comprises inevitable composition is 31～36wt%.
For the Cu containing ratio, if not enough 63wt% then can not obtain good sea water resistance, if surpass 67wt%, then hot-workability descends, and simultaneously, sea water resistance does not correspondingly improve along with the increase of Cu containing ratio yet, and the manufacturing cost of gauze rises on the contrary.In addition; If Cu alloy silk; Because the effect of the Cu ion of stripping to seawater from the surface can prevent that marine organisms such as sea grass, shellfish from adhering to, particularly; Can all sterilize to the breeding seawater territory that is provided with net cage for sea farming 1, sterilization, prevent that skin worm (Ha グ worm) etc. from parasitizing fish such as ocyurus chrysurus, Zhang Xiong.
Not enough 0.3wt% for Sn rate arranged, if then can not fully improve sea water resistance, abrasion resistance and intensity; If surpass 0.8wt%, then these sea water resistances, abrasion performance and intensity correspondingly do not improve along with the increase of Sn containing ratio, and hot-workability, cold-workability all descend on the contrary.
For the Ni containing ratio, if not enough 0.1wt% then can not fully improve sea water resistance, abrasion resistance and intensity; If surpass 0.7wt%, then these sea water resistances, abrasion performance and intensity correspondingly do not improve along with the increase of Ni containing ratio, and the manufacturing cost of gauze rises on the contrary.
Below the embodiment, embodiments of the invention are described.At first, describe to each wire with by the method that this each wire is made net cage for sea farming.As shown in table 1; The plating Zn iron wire that in the embodiment of the invention 1～5, uses; Be after soft iron silk material (the JIS G3505 of Japanese Industrial Standards) annealing, after implementing pre-treatment, just be immersed in to dissolve and plate in the Zn pond, through what make by the adhesion amount of throttling arrangement adjustment plating Zn layer with silk footpath 4mm.As for the plating Zn-Al iron wire that uses in the embodiment of the invention 6～12 too; Be through after soft iron silk material (the JIS G3505 of the Japanese Industrial Standards) annealing with silk footpath 4mm; After implementing pre-treatment, just be immersed in the plating Zn-Al alloy pond, through what make by the adhesion amount of throttling arrangement adjustment plating Zn-Al layer.
About the Cu alloy silk that in the embodiment of the invention 13～16, uses, be to make, promptly through following mode; The Cu alloy that dissolves various compositions through high frequency dissolving stove is cast columned ingot bar, the surface of this ingot bar is cut obtained the processing ingot bar after, this processing ingot bar is heated; Directly push through extruder then; Make the bar-shaped blank of diameter 10mm,, be worked into silk always directly for till the 4mm after this through carrying out cold-drawn and annealing repeatedly.
In addition, the wire that in comparative example 17, comparative example 18, comparative example 19, uses, be respectively with the identical wire of wire that in the invention described above example 1, the present invention's example 6, the present invention's example 13, uses.The Ti silk that in comparative example 20, comparative example 21, uses, the silk footpath is 4mm, is equivalent to the Ti silk of the JIS H4670 of Japanese Industrial Standards.And the chemical fibre silk that in comparative example 22, comparative example 23, uses is the raw material thread twisted of polyethylene system to be made the silk footpath be the chemical fibre silk of 5mm.
As above the wire made, as previously mentioned,, make the wire of adjacency interweave at their bend each other through the braiding of automatic metal silk screen braider, do the gauze that the ramify inside dimension is the rhombus of 50mm.For the chemical fibre silk, also through the automatic knitting machine braiding, doing the ramify inside dimension equally is the chemical fibre net of the rhombus of 50mm.
And, about the present invention example 1～16, comparative example 20, comparative example 22 be, as above-mentioned do, make and open a net cage for sea farming 1 of establishing structural type.On the other hand, as for comparative example 17～19, comparative example 21, comparative example 23, be in above-mentioned net cage for sea farming 1, only to make the net cage for sea farming of suspended structure type from upper ledge 2 suspension nets and in the mode that the lower limb of net is not installed heavy lower frame 3.In addition, these two types, as shown in Figure 1, net is all made high by 10, wide 11 and is the cube of equal length 10m.
Then, the test method to various characteristics describes with its metewand.The net cage for sea farming of the present invention example that will do manufacturing through above-mentioned that kind 1～16, comparative example 17～23 the inland sea actual be immersed in carried out in the seawater being provided with after; Keep this state to place unchangeably; In the process of this placement, estimated the form retentivity of net cage for sea farming and stability has been set.In addition, net cage for sea farming fixes on marine fixed buoy and seabed by not shown hawser system.
As shown in Figure 1; One end of hawser is installed in four jiaos each lower 13 that is positioned at lower frame 3; The other end of this hawser is connected to swims near the not shown buoy the seawater face; Measure this buoy from be positioned at above-mentioned lower 13 directly over the distance (following conduct " lower shift length ") of upper corner 12 displacements, with the mean value of this lower shift length index as the form retentivity of net cage for sea farming.In addition, also measure the distance (following conduct " upper corner shift length ") of above-mentioned upper corner 12 displacement when being provided with, with the mean value of this upper corner shift length the index that stability is set as net cage for sea farming.And, to the form retentivity, stability is set, all be designated as ◎ (good) with the not enough 0.5m of shift length, surpass 0.5m but not enough 1m is designated as zero (well), surpass 1m but not enough 2m is designated as △ (some bad), above 2m be designated as * mode of (bad) estimates.
After 1 year, each net cage for sea farming 1 of pull-up from seawater cuts out wire from network and line is observed etch state, as the index of sea water resistance.And, under the situation of the wire that has carried out coating (the present invention's example 1～12, comparative example 17, comparative example 18), surpass 300g/m to need only residual adhesion amount
2Just be designated as ◎, though the not enough 300g/m of residual adhesion amount
2If but residually on whole of coating matrix had coating just to be designated as zero, though exposing the mode that the not enough 0.8mm of the corrosion depth of this exposed portions serve then is designated as △, coating matrix at least a portion would estimate.Under the situation of the wire that does not carry out coating (the present invention example 13～16, comparative example 19～21), with as long as the not enough 0.2mm of corrosion depth just is designated as ◎, corrosion depth surpasses 0.2mm but not enough 0.4mm is designated as zero mode estimates.Under the situation of chemical fibre silk (comparative example 22, comparative example 23), to estimate as long as disrumpent feelings less than 1 achievement of base silk is designated as the mode of ◎.
In addition, for the wire that has carried out coating (the present invention example 1～12, comparative example 17, comparative example 18), with the crack situation occurred of the coating surface among the bend 6a of visualization after, as the index of coating processability by the netting of automatic metal silk screen braider.And; Estimate in such a way; Promptly; To with the naked eye fail to identify in the crannied situation of coating surface and be designated as ◎, will with the naked eye can identify limpingly in the crannied situation of coating surface and be designated as zero, the situation that can identify the crackle of the degree of scratching at the useful nail of coating surface be designated as △.
Below, the evaluation result of various characteristics is shown in table 1.
Relatively the present invention routine 1 and comparative example 17,22,23; The present invention's example 6 and comparative example 18, the present invention's example 13 can be known with comparative example 19, does not use the chemical fibre net; Establish structure manufacturing net cage for sea farming and use by opening of the gauze heavier than this chemical fibre net; Thus, the shift length of above-mentioned upper corner 12, lower 13 all diminishes, and makes net cage for sea farming have high form retentivity and stability is set.And then relatively the present invention's example 1 can be known with comparative example 20,21, even gauze; Use heavy gauze wiry; No matter the net cage for sea farming type how, the upper corner shift length is all especially little, can make net cage for sea farming have the high stability that is provided with.
In addition, relatively the present invention's example 1～3 can be known with the present invention's example 4,5, if plating Zn iron wire, then in the scope of the adhesion amount of plating Zn layer of the present invention, sea water resistance and coating processability are all good.That is, constitute on the iron wire because above-mentioned wire covers plating Zn layer, simultaneously, the adhesion amount of this plating Zn layer is 350～700g/m
2So, can guarantee coating close attachment property, prevent that sea water resistance from descending; Simultaneously; Prolong during till can the coating on the iron wire being consumed, seek to reduce the needed maintenance cost of draping, can be during culturing in not draping; Prevent the harmful effects such as anxiety that fish and shellfish receives when moving replacing, seek the raising of feed efficiency and grow with healthy growth.
In addition; Compare the present invention's example 6,9,10 and the present invention's example 11,12, the present invention's example 6 can be known with the present invention routine 7,8, if plating Zn-Al alloy iron wire; In the scope of the composition of the adhesion amount of plating Zn-Al alloy layer of the present invention, sea water resistance and coating processability are all good.That is, because above-mentioned wire is with comprising that Al is that 8～15wt% and the Zn that comprises inevitable composition are that the plating Zn-Al alloy layer of 85～92wt% covers on the iron wire and constitutes, simultaneously, the adhesion amount that makes this plating Zn-Al alloy layer is 350～700g/m
2, the wire that the processability when so sea water resistance and netting can be provided is all good.
In addition, relatively the present invention's example 13 can be known with the present invention's example 14～16, and in the scope of the composition of Cu alloy of the present invention, sea water resistance is good.Promptly; Because above-mentioned wire is to comprise that Cu is 63～67wt%, Sn is 0.3～0.8wt%, and Ni is 0.1～0.7wt%; And the Zn that comprises inevitable composition is the Cu alloy silk of 31～36wt%, so can provide sea water resistance, particularly sterilization to prevent the good wire of algae property.
Utilize possibility on the industry
The present invention is to impaling certain sea area with net, and all net cage for sea farming that in this net, carry out the breed of fish and shellfish can both be suitable for.
Claims (2)
1. net cage for sea farming; Said net cage for sea farming is the net cage for sea farming that impales certain sea area, in this net, carries out the breed of fish and shellfish with net; It is characterized in that; Float is attached on the tubing that is being linked by truss structure forms upper ledge; Relatively dispose the lower frame that constitutes by tubing with this upper ledge, the casing of the gauze system that will constitute by side surface part and bottom surface sections by this lower frame and above-mentioned upper ledge open be located at marine, this gauze braiding sea water resistance and heavy wire and form;
Above-mentioned wire is with comprising that Al is that 8～15wt% and the Zn that contains inevitable composition are that the plating Zn-Al alloy layer of 85～92wt% covers on the iron wire and constitutes, and simultaneously, the adhesion amount of this plating Zn-Al alloy layer is 350～700g/m
2
2. net cage for sea farming as claimed in claim 1 is characterized in that, the mesh of above-mentioned gauze directly is that the metal wire knitted ramify inside dimension of 2～5mm is that the rhombus of 20～70mm forms with silk.
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| CN2008101284467A CN101617637B (en) | 2008-07-01 | 2008-07-01 | Net cage for sea farming |
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| CN2008101284467A CN101617637B (en) | 2008-07-01 | 2008-07-01 | Net cage for sea farming |
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| CN101617637A CN101617637A (en) | 2010-01-06 |
| CN101617637B true CN101617637B (en) | 2012-11-07 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102369896B (en) * | 2010-08-23 | 2013-05-22 | 中国水产科学研究院东海水产研究所 | Processing method for wind and wave resistance square metal net box |
| CN102106284B (en) * | 2011-01-27 | 2012-11-28 | 王庆昭 | Ultrahigh molecular weight polyethylene deep-sea breeding floating platform |
| CN102119677B (en) * | 2011-04-01 | 2012-10-10 | 大连东方润隆水产有限公司 | Cage sea cucumber culture device |
| CN103875570B (en) * | 2014-04-01 | 2017-01-11 | 长兴德裕新材料有限公司 | Aquaculture net not prone to deformation and knitting method thereof |
| CN106035143B (en) * | 2016-05-26 | 2018-09-28 | 中国科学院广州能源研究所 | Integrate the semi-submersible type deep-sea culture net cage of wave energy and solar power generation |
| CN107711655A (en) * | 2017-11-24 | 2018-02-23 | 谢育枝 | A kind of net cage and cultural method for aquaculture |
| CN116019042B (en) * | 2023-01-09 | 2024-05-17 | 安徽省农业科学院水产研究所 | Adjustable fish nest with anti-resistance function |
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| US4002893A (en) * | 1975-10-06 | 1977-01-11 | Newcomb Nelson F | Illuminated playball |
| CN2786964Y (en) * | 2005-03-31 | 2006-06-14 | 蔡彬 | Pet food pellet |
| JP3995538B2 (en) * | 2002-06-18 | 2007-10-24 | 四国大和金網株式会社 | Ginger frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5645407Y2 (en) * | 1978-07-06 | 1981-10-23 | ||
| JPS5816620A (en) * | 1981-07-23 | 1983-01-31 | 高安 清輝 | Composite wire material for fishing net |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002893A (en) * | 1975-10-06 | 1977-01-11 | Newcomb Nelson F | Illuminated playball |
| JP3995538B2 (en) * | 2002-06-18 | 2007-10-24 | 四国大和金網株式会社 | Ginger frame |
| CN2786964Y (en) * | 2005-03-31 | 2006-06-14 | 蔡彬 | Pet food pellet |
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| CN101617637A (en) | 2010-01-06 |
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