CN101642062B - Cover net for polyethylene framework floating type circular deep water net box - Google Patents
Cover net for polyethylene framework floating type circular deep water net box Download PDFInfo
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- CN101642062B CN101642062B CN2008100413371A CN200810041337A CN101642062B CN 101642062 B CN101642062 B CN 101642062B CN 2008100413371 A CN2008100413371 A CN 2008100413371A CN 200810041337 A CN200810041337 A CN 200810041337A CN 101642062 B CN101642062 B CN 101642062B
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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
Abstract
The invention discloses a cover net for a polyethylene framework floating type circular deep water net box, relates to a cover net for a deep water net box, and needs to provide a cover net which protects fishes in the net box from being injured by birds and does not injure the birds. The cover net is formed by shearing, sewing, reinforcing and assembling net sheets, and is characterized in that the lower bottom edge of an outer ring cover net and the upper bottom edge of an inner ring cover net are knitted and sewn by net wires which are used for the annular outer ring cover net of which inner and outer rings are 1,374 and 1,566 meshes respectively and the annular inner ring cover net of which inner and outer rings are 378 and 690 meshes respectively, and a middle ring steel rope is sewn; net eyes of the 378-mesh inner ring of the inner ring cover net are shrunk to the steel rope of which length is 22.68 meters; net eyes of the 1,566-mesh outer ring of the outer ring cover net are shrunk to the steel rope of which length is 46.98 meters; and the steel rope of the annular cover net in length of 46.98 meters is shrunk to a circular railing of the deep water net box in circumference length of 46.9 meters, and the installation of the cover net on the net box is finished. The cover net is used for the polyethylene framework floating type circular deep water net box.
Description
Technical field
The present invention relates to agricultural science aquatic products technical field framework floating type circular deep water net cage cover net.
Background technology
In agricultural science aquatic products technical field, usually net cage handrail girth 46.9m, 50 meters polyethylene framework floating type circular deep water net cages of outer floating pipe girth are called 50 meters polyethylene framework floating type circular deep water net cages of girth.The wind wave resistance performance is good, cost is lower for 50 meters polyethylene framework floating type circular deep water net cages of girth (be called for short PE framework floating type circular deep water net cage), easy to operate, use more in each sea area of China.The polyethylene framework floating type circular deep water net cage with state in its water can be divided into floating, three kinds of the formula of diving and elevation (over-and-under) types; As the buoyancy framework, frame shape comprises circle, hexagon, square and primary-secondary type etc. to the polyethylene framework floating type circular deep water net cage with the floating pipe of PE.
In PE framework floating type circular deep water cage culture process, cultured fishes are usually inhabited the sea area when being active in top layer, net cage waters birds catch or peck wound, these birds or directly hold cultured fishes in the mouth, seriously peck and hinder cultured fishes (fish that is seriously pecked wound generally can be slowly dead in net cage), these birds cause heavy economic losses all for the deep water mesh cage raiser every year, add up annual birds according to the multiple sea area of birds and cause several thousand even the economic loss of units up to ten thousand can for each PE framework floating type circular deep water net cage.For sea area birds injury or attack are avoided in the cultured fishes of protection deep water mesh cage, some raiser adopts the way of setting up drift net aloft to tackle or catch these birds in the breed sea area, and its shortcoming is that this tradition prevents that the bird method may cause the part birds to be set up drift net in the air and twine network death; Some raiser uses stone, club, scarecrow etc. to drive the mode of birds in the breed sea area, this tradition is prevented bird method " people walks in the front, bird back come ", " people catches up with in the front, bird back come ", poor effect when the anti-bird method of tradition is avoided these sea area birds injuries or attacked in the cultured fishes of protection deep water mesh cage; Perch in the sea area on the problem of birds injury deep water mesh cage cultured fishes, should protect the cultured fishes of deep water mesh cage to avoid the birds injury, do not injure the sea area birds again, the raiser is at one's wit's end, feels simply helpless.
Summary of the invention
The problem that the present invention need solve provides a kind ofly protects cultured fishes in the net cage to avoid the birds injury, does not injure the cover net for polyethylene framework floating type circular deep water net box of sea area birds again.
Technical scheme of the present invention adopt the net sheet through cut out, stitching, reinforcement, assembling constitute, the net cage cover net is made up of outer, inner ring cover net two parts, the net sheet that cover net adopts is single fast knot type net sheet of size of mesh 50mm, 100mm,, inner ring cover net net sheet material outer as the processing net cage respectively with the net sheet of these two kinds of size of meshes; Horizontal stroke, N-meshes that to get a size of mesh be 50mm are respectively 1469.5 orders, 25 purpose rectangle net sheets, earlier its vertical dual-side piece is become cylindrical shape, the circulation parallelogram net sheet that to be cut into a size of mesh be 50mm is cut out by the hypotenuse of " (1N1B) 15; (2N1B) 1 " by any order place on the cylindrical shape base then, again from acute angle end points number to the 130 order places of this parallelogram net sheet, cut out direction with sharp edge and cut out the circulation trapezoid net sheet that to cut a size of mesh be 50mm by the hypotenuse of " (1N1B) 15, (2N1B) 1 "; Adopt the associating cutting-out method to cut the trapezoid net sheet of base, bottom and N-meshes on 12 same sizes (the order number is respectively 130 orders, 114 orders, 25 orders) altogether by identical cut-out method; It is that the hypotenuse of 12 trapezoid net sheets of 50mm carries out order successively and order is compiled stitched with the polyethylene fishing lines of diameter 2.5mm with size of mesh that orders such as employing are compiled stitch, is respectively 1374 orders, 1566 purpose annular outer ring cover nets until these 12 trapezoid net sheets are stitched into an inner and outer rings; The horizontal stroke that to get a size of mesh again be 100mm, vertically order is respectively 533.5 orders, 37 purpose rectangle net sheets, its vertical dual-side piece is become cylindrical shape, the circulation parallelogram net sheet that to be cut into a size of mesh be 100mm is cut out by the hypotenuse of " (1N1B) 23; (1N3B) 1 " by any order place on the cylindrical shape base then, again from acute angle end points number to the 57 order places of this parallelogram net sheet, cutting out direction with sharp edge cuts out circulation by the hypotenuse of " (1N1B) 23, (1N3B) 1 " and cuts a trapezoid net sheet; Adopt the associating cutting-out method to cut the trapezoid net sheet of base, bottom and N-meshes on 12 same sizes (the order number is respectively 57 orders, 31 orders, 37 orders) altogether by identical cut-out method; Orders such as employing are compiled stitch and with the polyethylene fishing lines of diameter 2.5mm the hypotenuse of 12 size of meshes trapezoid net sheet that is 100mm are carried out order successively order is compiled seam, are respectively 378 orders, the annular inner ring cover net of 690 purposes until these 12 trapezoid net sheets being stitched into an inner and outer rings; Adopt the mode of net sheet fringing to carry out the reinforcement of net sheet with the polyethylene fishing lines of diameter 2.5mm net sheet edge external, the inner ring cover net; The inner ring cover net is placed in the interior ring of outer ring cover net, with rugosity be 2.5mm the polyethylene fishing lines with the bottom of trapezoid net sheet in the cover net of outer ring respectively with the inner ring cover net in the last base of trapezoid net sheet carry out 2 orders successively 1 order compiled seam, in with the outer ring cover net bottom of trapezoid net sheet respectively with the inner ring cover net in till the good seam of the corresponding one by one assembly in last base of trapezoid net sheet, at last the piece of inside and outside circle cover net is sewn onto on the high strength polyamide fibre rete cord (rete cord rugosity 6mm) of long 41.4m, encircles rete cord in obtaining between the inside and outside circle cover net of net cage; Horizontal hanging ratio with 0.6 evenly contracts the last 378 order meshes of ring in the inner ring cover net on the high strength polyethylene rete cord (rete cord rugosity 6mm) that is sewn to long 22.68m; Horizontal hanging ratio with 0.6 evenly contracts 1566 order meshes on the cover net outer shroud of outer ring on the high strength polyethylene rete cord (rete cord rugosity 6mm) that is sewn to long 46.98m, prick the polyethylene fishing lines of tiing up rete cord and net sheet employing diameter 2.5mm during the dress guiding principle, just obtained the annular cover net of net cage after the dress guiding principle finishes; Annular cover net covers the rounded handrail top of polyethylene framework floating type circular deep water net cage behind the dress guiding principle, to adorn behind the guiding principle the long outer shroud rete cord of 46.98m of annular cover net with 0.998 horizontal hanging ratio and evenly contract and be sewn on the rounded handrail of girth 46.9m, and finish cover net and on net cage, install.
The advantage that the present invention gives prominence to is that cover net can be located at cultured fishes main activities zone in the net cage accurately, breaks through the sagging defective of the circular cover net central authorities' net sheet of totally enclosed type, and neither the anti-bird effect of influence makes things convenient for bait feeding, the cover net cost of also saving easy for installation again.The present invention does not find that through on probation cultured fishes are caught by birds or peck wound, and anti-bird effect is obvious.The raiser uses every net cage (deduction cover net cost) behind the cover net of the present invention can reduce about more than 6000 yuan of the economic loss that the birds infringement caused, economic effect, ecological benefits and obvious social benefit every year.
Description of drawings
Fig. 1 represents that the trapezoid net sheet of deep water mesh cage outer ring cover net is united and cuts out schematic diagram;
Fig. 2 represents that cover net processing in deep water mesh cage outer ring is with trapezoid net sheet schematic diagram;
Fig. 3 represents that the trapezoid net sheet of deep water mesh cage inner ring cover net is united and cuts out schematic diagram;
Fig. 4 represents that deep water mesh cage inner ring cover net processing is with trapezoid net sheet schematic diagram;
Fig. 5 represents that 12 trapezoid net sheets are stitched into an annular outer ring cover net schematic diagram;
Fig. 6 represents that 12 trapezoid net sheets are stitched into an annular inner ring cover net schematic diagram;
Fig. 7 represents PE framework floating type circular deep water net cage cover net schematic diagram;
Fig. 8 represents the assembling schematic diagram of deep water mesh cage cover net on net cage.
Embodiment
Implement best way of the present invention below in conjunction with accompanying drawing 1～8 explanation:
Among Fig. 11 is the cutting limit, and 2 is a trapezoid net sheet, and 3 is a horizontal stroke, vertically order is respectively 1469.5 orders, 25 purpose rectangle net sheets, and 4 cut out direction for sharp edge.
Among Fig. 2 21 is the last base of trapezoid net sheet, and 22 is the hypotenuse of trapezoid net sheet, and 23 is the bottom of trapezoid net sheet.
Among Fig. 3 31 is the cutting limit, and 32 is a trapezoid net sheet, and 33 is a horizontal stroke, vertically order is respectively 533.5 orders, 37 purpose rectangle net sheets, and 34 cut out direction for sharp edge.Among Fig. 4 41 is the last base of trapezoid net sheet, and 42 is the hypotenuse of trapezoid net sheet, and 43 is the bottom of trapezoid net sheet.
Among Fig. 5 51 is the bottom of trapezoid net sheet, and 52 is the last base of trapezoid net sheet, and 53 is the piece between adjacent two trapezoid net sheets, and 54 is a trapezoid net sheet.
Among Fig. 6 61 is the bottom of trapezoid net sheet, and 62 is the last base of trapezoid net sheet, and 63 is a trapezoid net sheet, and 64 is the piece between adjacent two trapezoid net sheets.
Among Fig. 7 71 is the piece between adjacent two net sheets in the cover net of outer ring, 72 is the interior ring rete cord of cover net, 73 is the middle ring rete cord between the inside and outside circle cover net, 74 is the outer shroud rete cord of cover net, 75 is a net sheet of outer ring cover net, 76 is a net sheet of inner ring cover net, and 77 is the piece between adjacent two net sheets in the inner ring cover net.
Among Fig. 8 80 is the piece between the cover net of outer ring, 81 is the piece between adjacent two net sheets in the inner ring cover net, and 82 is the outer shroud rete cord of cover net, and 83 is the middle ring rete cord between the inside and outside circle cover net of net cage, 84 is the interior ring rete cord of cover net, 85 is the net cage handrail, and 86 is that seam is pricked the net cage handrail and cover net outer shroud rete cord rugosity is the polyethylene rope of 8mm, and 87 is the floating outward pipe of net cage, 88 is a net sheet of outer ring cover net, 89 is a net sheet of inner ring cover net, and 90 is floating pipe in the net cage, and 91 is the net cage armrest support.
The present invention is shaped as circular characteristics according to 50 meters PE framework floating type circular deep waters of girth net cage frame, the deep water mesh cage cover net is designed to annular, and annular deep water mesh cage cover net is that the annular deep water mesh cage outer ring cover net (difference of the outer ring diameter of outer ring cover net and the interior ring diameter of outer ring cover net is 2.0m) of 1m and annular deep water mesh cage inner ring cover net (difference of the outer ring diameter of inner ring cover net and the interior ring diameter of outer ring cover net is 5.92m) two parts that width is 2.96m are formed by width.The present invention uses the net sheet material of two kinds of different sizes on the deep water mesh cage cover net, using thick (the 36 strands of netting twines) specification of size of mesh less (size of mesh 50mm), netting twine at the outer ring cover net near net cage handrail one end is " PE-ρ
x36 * 36-50SJ " single fast knot type net sheet, use away from the inner ring cover net of net cage mesh bag wall or handrail one end size of mesh thin (the 18 strands of netting twines) specification of big (size of mesh 100mm), netting twine be " PE-ρ
x36 * 18-100SJ " single fast knot type net sheet.
As PE framework floating type circular deep water net cage outer ring cover net net materials, utilize netting machine or manual fishing lines to be woven into size of mesh 50mm, specification " PE-ρ with the fishing lines of diameter 2.25mm, specification " PE 36tex * 12 * 3 " with diameter 2.25mm, specification " PE 36tex * 12 * 3 "
x36 * 36-50SJ " single fast knot type rectangle net sheet, with this single fast knot type rectangle net sheet as processing PE framework floating type circular deep water net cage outer ring cover net net sheet material.As PE framework floating type circular deep water net cage inner ring cover net net materials, utilize netting machine or manual fishing lines to be woven into size of mesh 100mm, specification " PE-ρ with the fishing lines of diameter 1.30mm, specification " PE 36tex * 6 * 3 " with diameter 1.30mm, specification " PE 36tex * 6 * 3 "
x36 * 18-100SJ " single fast knot type rectangle net sheet, single fast knot type rectangle net sheet is as processing PE framework floating type circular deep water net cage inner ring cover net net sheet material.
On the inside and outside circle cover net of deep water mesh cage, use the net sheet material of two kinds of different sizes and deep water mesh cage cover net to be designed to annular respectively, meet the actual loading situation of cover net in net cage, the behavioural characteristic that meets cultured fishes had again both reduced raw materials consumption, saved the cover net cost again.
The cover net processing of deep water mesh cage outer ring is cut out technology with the net sheet material: get specification and be " PE-ρ
x36 * 36-50SJ " one of single fast knot type rectangle net sheet of (its corresponding size of mesh is 50mm), the T-meshes of rectangle net sheet is that 1469.5 orders, N-meshes are 25 orders (3 among Fig. 1).The vertical dual-side of rectangle net sheet elder generation piece is become cylindrical shape, cut out circulation by the hypotenuse of " (1N1B) 15; (2N1B) 1 " [carrying out " the other single pin in limit " during " (1N1B) 15, (2N1B) 1 " expression cutting cut out circulation 15 times, carry out " two other single pin in limit " and cut out and circulate 1 time at any order place on the cylindrical shape base then; The limit is other during cutting represents that with code name N single pin is represented with code name B] be cut into a parallelogram net sheet (cutting edge of net sheet is shown in 1 among Fig. 1); Again from acute angle end points number to the 130 order places of parallelogram net sheet, cutting out direction (4 among Fig. 1) with sharp edge also cuts out circulation by the hypotenuse of " (1N1B) 15; (2N1B) 1 " and cuts a trapezoid net sheet [2 among Fig. 1, Fig. 2, several 130 orders of the last base of this trapezoid net sheet (21 among Fig. 2) order, several 114 orders of bottom (23 among Fig. 2) order, N-meshes 25 orders]; Again from acute angle end points number to the 130 order places of net sheet, cut out direction (4 among Fig. 1) with sharp edge and also cut out the trapezoid net sheet [2 among Fig. 1, Fig. 2, several 130 orders of the last base of this trapezoid net sheet (21 among Fig. 2) order, several 114 orders of bottom (23 among Fig. 2) order, N-meshes 25 orders] that another piece same size is cut in circulation by the hypotenuse of " (1N1B) 15; (2N1B) 1 "; The trapezoid net sheet [2 among Fig. 1, Fig. 2, several 130 orders of the last base of this trapezoid net sheet (21 among Fig. 2) order, several 114 orders of bottom (23 among Fig. 2) order, N-meshes 25 orders] that adopts identical cut-out method to cut out down successively can to cut 12 same sizes altogether.Unite at the net sheet and to cut out when calculating, consider the net sheet through cutting out with piece after, can cause the variation of net sheet material T-meshes; On the net sheet, whenever cut a hypotenuse, net sheet lateral lost halver, and hypotenuse of every piece, the net sheet laterally increases halver.
The processing of deep water mesh cage inner ring cover net is cut out technology with the net sheet material: get specification and be " PE-ρ
x36 * 18-100SJ " one of single fast knot type rectangle net sheet, the T-meshes of rectangle net sheet is that 533.5 orders, N-meshes are 37 orders (33 among Fig. 3).The vertical dual-side of rectangle net sheet elder generation piece is become cylindrical shape, cut out circulation by the hypotenuse of " (1N1B) 23; (1N3B) 1 " [carrying out " the other single pin in limit " during " (1N1B) 23, (1N3B) 1 " expression cutting cut out circulation 23 times, carry out " other three the single pin in limit " and cut out and circulate 1 time at any order place on the cylindrical shape base then; The limit is other during cutting represents that with code name N single pin is represented with code name B] be cut into a parallelogram net sheet; Again from acute angle end points number to the 57 order places of parallelogram net sheet, cutting out direction (34 among Fig. 3) with sharp edge also cuts out circulation by the hypotenuse of " (1N1B) 23; (1N3B) 1 " and cuts a trapezoid net sheet [32 among Fig. 3, Fig. 4, several 57 orders of the last base of this trapezoid net sheet (41 among Fig. 4) order, several 31 orders of bottom (43 among Fig. 4) order, N-meshes 37 orders]; Again from acute angle end points number to the 130 order places of net sheet, cut out direction (34 among Fig. 3) with sharp edge and also cut out the trapezoid net sheet [32 among Fig. 3, Fig. 4, several 57 orders of the last base of this trapezoid net sheet (41 among Fig. 4) order, several 31 orders of bottom (43 among Fig. 4) order, N-meshes 37 orders] that another piece same size is cut in circulation by the hypotenuse of " (1N1B) 23; (1N3B) 1 "; The trapezoid net sheet [32 among Fig. 3, Fig. 4, several 57 orders of the last base of this trapezoid net sheet (41 among Fig. 4) order, several 31 orders of bottom (43 among Fig. 4) order, N-meshes 37 orders] that adopts identical cut-out method to cut out down successively can to cut 12 same sizes altogether.The net sheet is united and is cut out when calculating, consider the net sheet through cutting out with piece after can cause the variation of net sheet material T-meshes; On the net sheet, whenever cut a hypotenuse, net sheet lateral lost halver, hypotenuse of every piece, the net sheet laterally increases halver.
Cover net processing in deep water mesh cage outer ring is sewed up and reinforcement technology with the net sheet: rugosity such as stitch such as volume such as the employings order of etc.ing is that the polyethylene fishing lines of 2.5mm carries out order successively with the hypotenuse of the trapezoid net sheet (54 among Fig. 5) of 12 size of meshes same size that is 50mm the order volume is stitched, the last base acute ends point of adjacent two trapezoid net sheets must link to each other successively during stitching, the last base acute ends point of adjacent two trapezoid net sheets must link to each other successively, until these 12 trapezoid net sheets are stitched into an annular outer ring cover net (Fig. 5); The bottom (51 among Fig. 5) of the trapezoid net sheet that 12 size of mesh is 50mm all be positioned on the ring of annular outer ring cover net (Fig. 5) and on the ring mesh add up to 1374 orders, and the last base (52 among Fig. 5) of the trapezoid net sheet that 12 size of mesh is 50mm all is positioned on the outer shroud of annular outer ring cover net (Fig. 5) and on the outer shroud mesh add up to 1566 orders; The mode that adopts net sheet fringing is carried out the reinforcement of net sheet with the polyethylene fishing lines of diameter 2.5mm to the net sheet edge of annular outer ring cover net (Fig. 5), with the dress guiding principle edge of guaranteeing annular outer ring cover net cracky not.
Deep water mesh cage inner ring cover net processing is sewed up and reinforcement technology with the net sheet: rugosity such as stitch such as volume such as the employings order of etc.ing is that the polyethylene fishing lines of 2.5mm carries out order successively with the hypotenuse of 12 size of meshes trapezoid net sheet (63 among Fig. 6) that is 100mm the order volume is stitched, the last base acute ends point of adjacent two trapezoid net sheets must link to each other successively during stitching, the last base acute ends point of adjacent two trapezoid net sheets must link to each other successively, until these 12 trapezoid net sheets are stitched into an annular inner ring cover net (Fig. 6); The bottom (61 among Fig. 6) of the trapezoid net sheet that 12 size of mesh is 100mm all be positioned on the ring of annular inner ring cover net (Fig. 6) and on the ring mesh add up to 378 orders, and the last base (62 among Fig. 6) of the trapezoid net sheet that 12 size of mesh is 100mm all is positioned on the outer shroud of annular inner ring cover net (Fig. 6) and on the outer shroud mesh add up to 690 orders; The mode that adopts net sheet fringing is carried out the reinforcement of net sheet with the polyethylene fishing lines of diameter 2.5mm to the net sheet edge of annular inner ring cover net (Fig. 6), with the dress guiding principle edge of guaranteeing ring network sheet cracky not.
Annular inner ring cover net is placed in the annular outer ring cover net in the ring, with rugosity be 2.5mm the polyethylene fishing lines with size of mesh in the annular outer ring cover net be 50mm trapezoid net sheet the bottom respectively with annular inner ring cover net in size of mesh be that the last base of 100mm trapezoid net sheet is carried out 2 orders successively 1 order is compiled seam, in with the outer ring cover net bottom of trapezoid net sheet respectively with the inner ring cover net in till the good seam of the corresponding one by one assembly in last base of trapezoid net sheet, in inciting somebody to action at last, the piece of outer ring cover net is sewn onto on the high strength polyamide fibre rete cord (polyamide fibre rete cord rugosity 6mm) of long 41.4m, in Here it is the deep water mesh cage net cage, middle ring rete cord between the cover net of outer ring (73 among Fig. 7 also is referred to as the interior ring rete cord of deep water mesh cage outer ring cover net or the outer shroud rete cord of deep water mesh cage inner ring cover net).Horizontal hanging ratio with 0.6 evenly contracts the last 378 order meshes of ring in the annular inner ring cover net on the high strength polyethylene rete cord (rete cord rugosity 6mm) that is sewn to long 22.68m; Horizontal hanging ratio with 0.6 evenly contracts 1566 order meshes on the annular outer ring cover net outer shroud on the high strength polyethylene rete cord (rete cord rugosity 6mm) that is sewn to long 46.98m; Prick the polyethylene fishing lines of tiing up rete cord and net sheet employing diameter 2.5mm during the dress guiding principle; The dress guiding principle has just obtained net cage after finishing with annular cover net (Fig. 7), net cage is with interior ring rete cord (72 among Fig. 7 of annular cover net behind the dress guiding principle, among Fig. 8 84) length is 22.68m, and net cage is 46.98m with outer shroud rete cord (74 among Fig. 7,82 among Fig. 8) length of annular cover net behind the dress guiding principle; Middle ring rete cord (83 among Fig. 8) length behind the dress guiding principle between the inside and outside circle cover net of net cage is 41.40m.Net cage is 7.2m with the interior ring diameter of annular cover net behind the dress guiding principle, is 14.95m and adorn net cage behind the guiding principle with the outer ring diameter of annular cover net.
When the net cage cover net assembles on net cage, net cage behind the dress guiding principle is covered above the handrail (85 among Fig. 8) of PE framework floating type circular deep water net cage that the handrail girth is 46.9m with annular cover net, will adorn behind the guiding principle net cage with 0.998 horizontal hanging ratio and evenly contract on the PE framework floating type circular deep water net cage cover net handrail (85 among Fig. 8) that is sewn to long 46.9m with the long outer shroud rete cord of the 46.98m of annular cover net (82 among Fig. 8); Dress is pricked during guiding principle and is tied up rete cord and adopt with the net cage handrail and extend polyethylene rope (86 among Fig. 8) moderate, diameter 8mm, and this has just obtained PE framework floating type circular deep water net cage cover net.
The net cage production practices show that cultured fishes are movable in the general waters, annular top layer in distance net cage mesh bag wall 3.0m scope in net cage, seldom arrive waters, the top layer activity of net cage mid-diameter 7.5m scope, cultured fishes are generally caught by birds when movable in the waters, top layer or are pecked wound.After the net cage that the present invention relates to is installed with cover net, just cultured fishes main activities zone in the net cage is covered fully, prevent that size of mesh that cultured fishes are escaped from being the little size of mesh block about 50mm and be provided with between the handrail of PE framework floating type circular deep water net cage and the interior floating pipe; There is the duplicate protection of cover net, block in the main activities zone of cultured fishes in the PE framework floating type circular deep water net cage like this; The size of mesh of outer ring cover net only is 50mm～100mm and adopts 0.6 horizontal hanging ratio dress guiding principle that cover net is about 1.0m apart from water surface elevation; Even birds stand on the cover net also and can't catch or peck wound the cultured fishes that are positioned at the main activities district in the cage culture process.Birds normally take off from the sea needs certain horizontal range and vertical height, therefore, birds see assembled annular cover net on the PE framework floating type circular deep water net cage after, birds take a risk from the central authorities of annular cover net enter net cage catch or peck hinder cultured fishes possibility seldom; And PE framework floating type circular deep water cage culture production practices show that the annular cover net that the present invention relates to is after coming into operation on the deep water mesh cage, so far find no birds always and take a risk to enter net cage from the central authorities of annular cover net and catch or peck and hinder cultured fishes, anti-bird effect is obvious.
The raiser uses behind the annular cover net that the present invention relates to every PE framework floating type circular deep water net cage cover net can reduce about more than 6000 yuan of the economic loss that birds are caused the large yellow Crocker infringement every year, and economic effect is obvious.The present invention uses annular cover net and does not use the circular cover net of totally enclosed type at floating circular PE framework floating type circular deep water net cage, be under the prerequisite that does not influence anti-bird effect, to make things convenient for cultured fishes bait feeding, saving cover net cost, use the annular cover net that the present invention relates to than using the circular cover net of totally enclosed type can save 10.8% cover net processing cost; The circular cover net of totally enclosed type central authorities do not have under the condition of bracing frame support, net sheet etting under the deadweight effect in the circular cover net mid-diameter of the totally enclosed type 4.0m scope is sagging bigger, and the present invention uses annular cover net to overcome the circular cover net of totally enclosed type sagging defective under the deadweight effect.The cover net that the present invention relates to is easy for installation, and it can guarantee that cultured fishes exempt from the injury of sea area birds, guarantee that the sea area birds exempt from artificial injury that have distinct economic, ecological benefits and social benefit, application prospect is quite wide.
Claims (3)
1. cover net for polyethylene framework floating type circular deep water net box, adopt cutting, stitching, reinforcement, assembling to constitute, it is characterized in that trapezoid net sheet by base, bottom and N-meshes on 12 size of mesh 50mm same sizes is stitched into an inner and outer rings and is respectively 1374 orders, 1566 purpose annular outer ring cover nets, several 130 orders of last base order of this trapezoid net sheet, several 114 orders of bottom order, N-meshes 25 orders; Be stitched into an inner and outer rings by 12 size of meshes trapezoid net sheet that is base, bottom and N-meshes on the 100mm same size and be respectively 378 orders, 690 purposes annular inner ring cover net, several 57 orders of last base order of this trapezoid net sheet, several 31 orders of bottom order, N-meshes 37 orders; The edge of the inner ring cover net polyethylene fishing lines fringing reinforcement of diameter 2.5mm outward; The inner ring cover net places in the interior ring of outer ring cover net, with the polyethylene fishing lines of rugosity 2.5mm with the bottom of trapezoid net sheet in the cover net of outer ring respectively with the inner ring cover net in the last base of trapezoid net sheet carry out 2 orders successively to the corresponding volume seam of 1 order, the piece of inside and outside circle cover net is sewn onto on the high strength polyamide fibre rete cord of long 41.4m, obtains the middle ring rete cord between the inside and outside circle cover net of net cage; Horizontal hanging ratio with 0.6 evenly contracts the last 378 order meshes of ring in the inner ring cover net on the high strength polyethylene rete cord that is sewn to long 22.68m; Horizontal hanging ratio with 0.6 evenly contracts 1566 order meshes on the cover net outer shroud of outer ring on the high strength polyethylene rete cord that is sewn to long 46.98m, the dress guiding principle is pricked the polyethylene fishing lines that the netting twine of tiing up rete cord and net sheet adopts diameter 2.5mm, obtains the annular cover net of net cage after the dress guiding principle finishes.
2. cover net for polyethylene framework floating type circular deep water net box according to claim 1 is characterized in that high strength polyamide fibre rete cord and high strength polyethylene rete cord rugosity are 6mm.
3. cover net for polyethylene framework floating type circular deep water net box according to claim 1 and 2, the high strength polyethylene rete cord that it is characterized in that adorning the long 46.98m of annular cover net behind the guiding principle evenly contracts with 0.998 horizontal hanging ratio on the rounded handrail of the girth 46.9m that is sewn to the polyethylene framework floating type circular deep water net cage, and the high strength polyethylene rete cord of the long 46.98m of annular cover net and net cage handrail adopt diameter 8mm polyethylene rope to prick and tie up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100413371A CN101642062B (en) | 2008-08-04 | 2008-08-04 | Cover net for polyethylene framework floating type circular deep water net box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100413371A CN101642062B (en) | 2008-08-04 | 2008-08-04 | Cover net for polyethylene framework floating type circular deep water net box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101642062A CN101642062A (en) | 2010-02-10 |
| CN101642062B true CN101642062B (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100413371A Expired - Fee Related CN101642062B (en) | 2008-08-04 | 2008-08-04 | Cover net for polyethylene framework floating type circular deep water net box |
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| Country | Link |
|---|---|
| CN (1) | CN101642062B (en) |
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2008
- 2008-08-04 CN CN2008100413371A patent/CN101642062B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101642062A (en) | 2010-02-10 |
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