CN203233875U - Tension leg type deep water net cage capable of heaving along with water level fluctuation - Google Patents
Tension leg type deep water net cage capable of heaving along with water level fluctuation Download PDFInfo
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- CN203233875U CN203233875U CN2013200952462U CN201320095246U CN203233875U CN 203233875 U CN203233875 U CN 203233875U CN 2013200952462 U CN2013200952462 U CN 2013200952462U CN 201320095246 U CN201320095246 U CN 201320095246U CN 203233875 U CN203233875 U CN 203233875U
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- net cage
- tension leg
- kentledge
- leg type
- scaffold
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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
A tension leg type deep water net cage capable of heaving along with water level fluctuation is a novel net cage invented according to a compliant mooring anchoring principle of a marine oil tension leg type platform. The tension leg type deep water net cage is characterized in that a net cage floating body adopts a floating body with a hydraulic weight adjusting function, one part is a permanent flotation compartment, one part is a variable flotation compartment, the permanent flotation compartment and the variable flotation compartment are both installed on the same vertical supporting frame, the frame is connected with a ballast block supporting frame through tension legs, lifting lugs of the ballast block supporting frame arranged on a skirt board are connected with basic lifting lugs through anti-drop cables. The periphery of the net cage is tied vertically and tensioned on the vertical supporting frame and the tension legs. Due to the effect of tension, the net cage is stable, can be used in wide sea areas with urgent ocean current and without blocking, greatly develops sea farming resources, and has great economic value in the net cage cultivation industry.
Description
Technical field
Can be with the tension leg type deep water mesh cage of fluctuation in stage heave, be that a kind of ocean current that is applicable to is anxious and without the novel net cage in the open sea area of shield, belong to the ocean engineering field.
Technical background
Cage culture is the pith of marine economy, the gravity type HDPE net cage of being introduced by Norway at present develops rapidly, in the yellow Bohai Sea, the East Sea, the South Sea, have a large amount of raisers to use, although this floating cage made from the HDPE material is the tube frame of making by HDPE, by notes/drainpipe is set, before typhoon, can be sunken to certain depth, evade the wave stroke of water surface maximum, but still have following fatal defective from this net cage of practice:
1. be not suitable with the impact of ocean current, just may deform when current speed only reaches 0.257m/s according to observations, when flow velocity reaches 1m/s, will lose 80% cage culture and hold body, so just lost a large amount of culture resources.
2. owing to this class net cage of above-mentioned reason can only use at right up and down inner bay, because the raiser swarms in this narrow and small inner bay, cause in the gulf water quality very abominable, even stinking smell assaulting one's nostrils, the fish poor quality, fish disease is many, the most valuable line seascape of coastal city forfeiture.This just forces local government for city development, the inner bay cage culture family of having to go by force to drive, but the technical support because there not being open waters to use, and this just makes the raiser be in very difficult condition.
3.HDPE the not corresponding reliable anchoring anchoring system of net cage is supporting, these are different take reliable anchoring mooring as prerequisite with the tension type net cage, anchoring and mooring problem there are not solution always, so that pass through under the typhoon to sink, not possible wind resistance, in by the end of September, 2011 Lingao, Hainan at the fish culture net cage of open waters, at typhoon " Ni Ge " be annihilated under attacking, half is blown to the off-lying sea loses, half blows to the bank and batters down, one of the fish of fast results is not all got back, and only the economic loss of three companies nearby 800,000,000.
From the cage culture of upper analysis development open waters, need to break through the limitation of HDPE net cage, seek a kind of safety, reliable, be applicable to ocean current anxious and without the novel net cage in the open sea area of shield, the utilization of resources in vast marine site is got up.According to having experience and theory analysis both at home and abroad now, improved route has:
1. fixed anchor strut system, with net cage mooring and Zhang tightly on anchor strut, ocean current can not cause the drift of net cage undoubtedly, cause cage culture to hold bulk diffusion, but fixed anchor strut must have reliable anchoring, and version and the construction method of this anchoring of realization, but this is a difficult problem, because with conventional pile foundation, because introducing marine guidance piling, expensive operation on the sea expense just makes this scheme meaningless.
2. the tension leg type net cage is tightened net cage by tension force, can make equally ocean current can not cause the drift of net cage, causes cage culture to hold bulk diffusion, but brings two problems:
A., the basis that the reliable anchoring of high withdrawal resistance of balance tension will be arranged is a difficult problem such as aforementioned this;
B will have enough structures of large buoyancy of generation, is called on the ocean engineering specialty " buoyancy compartment ", according to the ancient law of Archimedes, buoyancy is exactly the weight that buoyancy aid is got rid of water body, if flood tide, ebb tide all guarantees its tension force, only has a way, when allowing net cage place low tide under water, so just require certain depth of water, bring simultaneously the inconvenience of operating surface, such as feeding, fish for, reject the operations such as Si Fish.
In order to break through the limitation of HDPE net cage, seek a kind of safety, reliable, be applicable to ocean current anxious and without the novel net cage in the open sea area of shield, just must be take the tension leg type net cage as basic, the core of getting its tension force changes the shortcoming of the inconvenience of its operating surface.
Summary of the invention
In order to seek a kind of safety, reliable, be applicable to ocean current anxious and without the Novel net in the open sea area of shield
Case, take the tension leg type net cage as the basis, the core of getting its tension force changes the shortcoming of the inconvenience of its operating surface, realizes the circumscribed breakthrough of HDPE net cage, and the technical solution of the utility model is:
1, the net cage buoyancy aid adopts has waterpower to transfer the buoyancy aid of heavy function, a part is the permanent buoyant tank that polyvinyl chloride or foamed polystyrene body consist of, a part is for there being waterpower to transfer the variable buoyancy compartment of the airtight casing of heavy function, and this casing is equiped with notes/draining pipe valve and notes/blow off valve is realized the variable buoyancy function;
2. permanent buoyancy section cabin and variable buoyancy compartment are installed on the same vertical support framework;
3. framework is connected with the kentledge scaffold by tension leg, and tension leg is used steel pipe usually, can be cable;
4. kentledge weight is by the block of perforate in the middle of being, cover is pressed in the location vertical rod of scaffold kentledge and forms, and reduces volume for gaining in weight, should preferentially select heavy weight aggregates, such as iron ore, the armored concrete that scrap iron piece etc. is built also can be filled stone and be realized with the casing Inner that steel is done;
5. bind up and down and be stretched on vertical support framework and the tension leg around the net cage;
6. be connected the anticreep cable between kentledge scaffold and basic hanger, the anticreep cable plays the effect of restriction net cage drift simultaneously;
7. in order to increase the net cage stability, the kentledge scaffold encloses area upper berth one deck damping sheet, and damping sheet all can with steel plate or plastic plate or plank;
8. kentledge scaffold back welding connects in length and breadth elongated skirtboard; it had both played the kentledge scaffold and had added the Strong effect; skew has damping action to net cage again; simultaneously after cable mooring between kentledge bearing support and basis was lost efficacy; when pulling up such as 100% disconnected cable or 100%; to net cage drag the increase resistance, protect it can not lose.
This technical scheme principle is, after variable buoyancy compartment water filling sinking, tension leg and ballast carrier are coupled together, drain water filling in the variable buoyancy compartment this moment, so just produced tension force, as shown in Figure 1, H is wind, wave, the horizontal force that produces under the flowing common action, it departs from the buoyancy aid generation, establishes the tilting complex torque M-that horizontal force H produces, and it is M+ that buoyancy F produces righting moment, the two is just in time reverse, be that tension force can make it get back to equalization point by acting in opposition, thereby realize dynamic equilibrium, the principle of compliant type anchoring that Here it is.When water level changed, buoyancy changed, and buoyancy aid is together with the up and down heave of kentledge scaffold, because the damping sheet effect on the kentledge scaffold can reduce it and pitch.Can allow its sinking by the variable buoyancy compartment water filling before typhoon is attacked, allow the kentledge scaffold touch the end and evade typhoon, later Wang variable buoyancy compartment gas injection draining of typhoon allows its floating restore.
The utility model has the advantages that rational in infrastructure, workable, overcome the shortcoming of total flooding tension leg type net cage operating surface inconvenience fully, the typhoon of evading is arranged again, guarantee the reliable mechanism that it can not be lost, can to adapt to the waters scope large for this net cage simultaneously, and this is just anxious for the exploitation ocean current and without the open sea area of shield, and condition has been created in the utilization of culture resources.
Description of drawings
Fig. 1 is compliant type equilibrium principle figure;
Fig. 2 is the utility model structural representation;
Fig. 3 is that the cage structure member is arranged schematic diagram;
Fig. 4 is net cage vertical support frame structure schematic diagram;
Fig. 5 is that net cage kentledge supporting frame structure is arranged schematic diagram;
Fig. 6 is net cage kentledge and skirtboard and skirtboard stiffener scheme of installation;
Wherein: 1 vertical support framework, 2 permanent buoyant tanks, 3 variable buoyancy compartment, 4 notes/draining pipe valve, 5 notes/blow off valve, 6 universal hinge 7 tension legs, 8 links, 9 hangers, 10 kentledge scaffolds, the location vertical rod of 11 kentledges, 12 kentledges, 13 kentledge scaffolds link bar, 14 skirtboards, 15 skirtboard hangers, 16 skirtboard stiffeners, 17 ettings, 18 etting lashings, 19 spring-dampers, 20 frameworks link bar, and 21 framework angular regions link bar 22. damping sheets (steel plate or plastic plate), 23 anticreep cables, 24 basic hangers, 25 bases.
Embodiment
Finish by land and can build by large parts with the tension leg type deep water mesh cage two of fluctuation in stage heave, i.e. Net-cage frame, the kentledge scaffold, the gene basis is finite form not, and net cage also has commercial prod, so make here needn't repeated description for basis and net cage.
It is conventional steel construction operation that Net-cage frame is made, difference is that to compare requirement higher with land light-duty steel construction house operation; And should consider mostly to be pipe component, the docking difficulty is higher than section bar, Net-cage frame is made should strictly observe building process, material should be selected the good steel of solderability on selecting, on the welding link, perfect welding procedure should be arranged, the weld seam detection program, welding personnel should be held qualified welder's certificate, forbid without card or rank deficient personnel welding, the Net-cage frame production process can be undertaken by following:
A. setting-out cutting: i.e. 1 vertical support framework, 20 frameworks link the setting-out cutting that bar and 21 framework angular regions link each pipe fitting such as bar;
B. the groove of polishing;
C. welding;
D. annex welding: such as 6 universal hinge support welding etc.;
E. weld inspection adopts the magnetic powder inspection sampling observation, can be extended in case of necessity the check of ultrasonic or radiographic inspection;
F. overall package.
So far Net-cage frame completes, variable buoyancy compartment 3 box tops installing notes/draining pipe valve 2 and notes/blow off valve 3, and make seal and check, through seal variable buoyancy compartment 3 and permanent buoyant tank 2 after the assay was approved, be assemblied in respectively on the Net-cage frame, available infiltration has deployed epoxy resin aramid belt, permanent buoyant tank 2 and variable buoyancy compartment 3 bundles are moved at framework link bar 20, behind the epoxy resin cure, can be fixed on permanent buoyant tank 2 and variable buoyancy compartment 3 on the Net-cage frame firmly, etting 17 is bound in respectively on the Net-cage frame, can carries out system with water at present and install.
Land another preparation is to make kentledge scaffold 10, scaffold is structural steel frame, as broad as long with land light-duty steel construction house, construction in line with the drawings gets final product, namely press the rear welding of figure setting-out cutting, note it being ballast carrier vertical rod 11 and 10 welding of ballast carrier scaffold, should hole at scaffold 10 correspondence positions first, allow kentledge vertical rod 11 be inserted into about the 30mm of the back side, the two welds again.Last kentledge scaffold encloses area upper berth one deck damping sheet 22, and damping sheet is with steel plate or plastic plate or plank making.
Kentledge 12 be in the middle of the block of perforate, square or garden shape or polygon reduce volume for gaining in weight, should preferentially select heavy weight aggregates, such as iron ore, the armored concrete that scrap iron piece etc. is built, also the casing Inner that does of available steel fills stone and makes kentledge.
Entering the marine embodiment of installing is:
At first finish first the basis at pre-Dinghai District and install, bind the red marker ball float to the water surface on the basic top hanger 24.Then hang kentledge scaffold 10, hang again kentledge 12, under assisting, the diver will calculate the kentledge 12 of weight, insert kentledge location vertical rod 11 And hanger 9 on scaffold 10, bind yellow sign ball float, then hang net cage, accurately located by two small-sized workboats assistance, the notes of unlatching variable buoyancy compartment 3/draining pipe valve 2 and notes/blow off valve 3 allows net cage sink down into projected depth behind the location, then with tension leg net cage and ballast carrier scaffold 13 are coupled together, allow water discharge by notes/blow off valve 5 toward variable buoyancy compartment 3 notes high pressure gas, buoyancy aid floats up to designed elevation ， And and forms tension force, the diver continues to have bound anticreep cable 23, etting lashing 16 and spring-damper 19, the diver removes the auxiliary hawser of relevant operation etc., can namely accuse with the tension leg type deep water mesh cage of fluctuation in stage heave and finish.
Claims (5)
1. can be with the tension leg type deep water mesh cage of fluctuation in stage heave, it is characterized in that the buoyancy aid that the net cage buoyancy aid adopts the heavy function of waterpower accent, a part is permanent buoyant tank, a part is variable buoyancy compartment, be installed on the same vertical support framework, framework is connected with the kentledge scaffold by tension leg, and the kentledge scaffold is located at the hanger of skirtboard, with be connected with the anticreep cable between basic hanger, bind up and down and be stretched on vertical support framework and the tension leg around the net cage.
2. according to claim 1 can be with the tension leg type deep water mesh cage of fluctuation in stage heave, it is characterized in that permanent buoyant tank is that polyvinyl chloride or foamed polystyrene body consist of, variable buoyancy compartment is that airtight casing is equiped with notes/draining pipe valve and notes/blow off valve consists of.
3. according to claim 1 can be with the tension leg type deep water mesh cage of fluctuation in stage heave, it is characterized in that kentledge be in the middle of the block of perforate, cover is pressed in the location vertical rod of scaffold kentledge.
4. according to claim 1 can with the tension leg type deep water mesh cage of fluctuation in stage heave, it is characterized in that the kentledge scaffold encloses area upper berth one deck damping sheet.
5. kentledge scaffold according to claim 4, bottom welding is elongated skirtboard in length and breadth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200952462U CN203233875U (en) | 2013-03-01 | 2013-03-01 | Tension leg type deep water net cage capable of heaving along with water level fluctuation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013200952462U CN203233875U (en) | 2013-03-01 | 2013-03-01 | Tension leg type deep water net cage capable of heaving along with water level fluctuation |
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| CN203233875U true CN203233875U (en) | 2013-10-16 |
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| CN2013200952462U Expired - Fee Related CN203233875U (en) | 2013-03-01 | 2013-03-01 | Tension leg type deep water net cage capable of heaving along with water level fluctuation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110622900A (en) * | 2015-12-04 | 2019-12-31 | 周俊麟 | Articulated net cage for open sea cultivation |
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2013
- 2013-03-01 CN CN2013200952462U patent/CN203233875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110622900A (en) * | 2015-12-04 | 2019-12-31 | 周俊麟 | Articulated net cage for open sea cultivation |
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| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170223 Address after: 570208 Hainan Province, Haikou city haidiandao Meilan District No. 1 South Zhao Wan Xing Lu Liwan Lok Hin 804 Patentee after: China Ocean Engineering (Hainan) Co., Ltd. Address before: 510260 Guangdong city of Guangzhou province Haizhuqu District Xingang West Tsui discovery Graceland home A-601 Patentee before: Gu Guowei |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20180301 |
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| CF01 | Termination of patent right due to non-payment of annual fee |