CN102476113A - Underwater automatic cleaning device for annular frame type net cage - Google Patents
Underwater automatic cleaning device for annular frame type net cage Download PDFInfo
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- CN102476113A CN102476113A CN2010105700312A CN201010570031A CN102476113A CN 102476113 A CN102476113 A CN 102476113A CN 2010105700312 A CN2010105700312 A CN 2010105700312A CN 201010570031 A CN201010570031 A CN 201010570031A CN 102476113 A CN102476113 A CN 102476113A
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- net cage
- net
- ring
- shaped frame
- annular frame
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Abstract
The invention discloses an underwater automatic cleaning device for an annular frame type net cage and relates to agriculture. The underwater automatic cleaning device can be used for automatically cleaning water in an offshore round culture net cage. An annular frame-type net scraper is additionally arranged in the round net cage and is assembled by an annular frame (6) and a strip-shaped net scraper (5); the size of the annular frame-type net scraper is slightly smaller than the peripheral size of the net cage; the annular frame can be assembled by the existing plastic pipe, a plastic standard part, a pipe joint, a tee joint and a cross; and the lower surface of the annular frame is connected with a frame-type sinker (9) by virtue of a connecting rope (8). When sea waves are formed on the sea surface on a certain position on the upper part of the net cage, the annular frame-type net scraper can generate heaving and dipping as well as four-direction high-frequency movement relative to the net cage and can automatically tightly lean against the net cage by taking the tide as power; the boring operations of tightening the rope and installing a tightened rope are omitted; and the net cage still can be automatically cleaned underwater. The underwater automatic cleaning device for the annular frame type net cage has the beneficial effects of lowering the manufacture cost of the 'device', prolonging the service life of the device, saving energy, reducing emission, saving labor and protecting the environment.
Description
Technical field
The device that the present invention relates to agricultural, the circular net cage in sea is cleaned under water automatically.
Technical background
The mariculture net cage places seawater for a long time, and some marine organisms will be attached to forming fouling organism on the etting, thereby increased the weight of net cage, influenced the inside and outside water body exchange of net cage.Lean on the artificial etting of changing if remove these stained owners at present, the cleaning method of some hand control machinery cleaned net cage with giant in recent years, and these methods all must rely on power source, diesel engine consumption oil, motor power consumption.A kind of in the recent period " device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater " comes out, and solved effectively that artificial cleaning net cage is taken a lot of work, power consumption and pollution problem, but should " device " have following defective:
1, there are problems such as cost is high, the dynamics of scrubbing is poor, service life is short in the rectangular brush on " device ", and the periodic replacement gauze brush has not only increased labour cost, also can cause certain pollution to culturing the sea area.
2, the peripheral size of annular frame size on this " device " and net cage is basic identical, has fettered the relative motion of gauze brush with respect to net cage, can not effectively utilize the effect of wave, has increased the manufacturing cost of annular framework.
3, tighten rope and pass for many from the annular framework; Two ends are separately fixed on the framework up and down of net cage up and down, have fettered the motion of gauze brush (net is scraped) with respect to net cage, have increased the unnecessary buoyancy requirement of annular framework; And fitting operation is loaded down with trivial details, takes a lot of work, waste material (tightening rope).
4, technical scheme has been ignored the existence of trend in the ocean, does not consider to utilize trend to make it be close to net cage automatically to the impact of annular frame facet.
Summary of the invention
In order to overcome the problems referred to above that " device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater " exists; The present invention provides a kind of ring-shaped frame net to scrape; And make the annular frame size be slightly less than the peripheral size of net cage, and dwindle the volume of annular framework, save many and tighten rope.
The technical scheme that technical solution problem of the present invention is adopted is: in circular net cage, install a ring-shaped frame net additional and scrape; It is to scrape (5) by annular framework (6) and rectangular net to assemble that this ring-shaped frame net is scraped; This annular framework can be used existing plastic tube and plastics standard component; Pipe joint, threeway, four-way assemble; Its undersized is in the peripheral size of net cage, and makes the proportion of its whole proportion much smaller than water, below the annular framework through connection cord (8) connection box posture sinker (9).Rectangular net on the annular framework is scraped to be scraped by a plurality of nets and is rearranged, the outline that net is scraped section by two equal-sized part spherical crowns at the bottom of to the coinciding together of the end, the inner chamber profile scraped by net and outline is identical, available injection molding machine of plastic once injection moulding.It can be power with morning and evening tides and wave that this ring-shaped frame net is blown, and in net cage, moves up and down and swing all around, and can under the impact of trend, be close to net cage automatically, realizes cleaning automatically net cage under water.
The invention has the beneficial effects as follows: the natural power that has made full use of morning and evening tides, wave and trend; Reduced the manufacturing cost of " ring-shaped frame cleans the device of net cage under water automatically " significantly; Improved scraping the dynamics of washing and service life of " device "; Saved many and tightened rope and the loaded down with trivial details operation of tightening rope is installed, still can realize, energy-conservation, reduction of discharging, saving of labor, environmental protection the cleaning automatically under water of net cage.
Description of drawings
Fig. 1 is scraped by a plurality of nets to rearrange rectangular net and scrape (5), the outline that net is scraped section by two equal-sized part spherical crowns at the bottom of to the coinciding together of the end, the inner chamber profile scraped by net and outline is identical.
Fig. 2 is that the ring-shaped frame net is scraped structure chart, and (5) are that rectangular net is scraped, and (6) are the annular frameworks, (7) Ω shape snap ring.
Fig. 3-the 1st, ring-shaped frame net scrape at the relative at ebb tide residing location drawing of net cage of seawater, and (5) are that rectangular net is scraped among the figure, and (6) are square hollow frames; (7) be Ω shape snap ring; (8) be connection cord, (9) are the frame-type sinkers, the position on sea when A representes high tide; B representes the seawater position on sea at ebb tide, and C representes the position in seabed.
Fig. 3-the 2nd, ring-shaped frame net scrape when high tide, the relative residing location drawing of net cage, and (1) is the net cage upper frame among the figure, and (2) are the net cage floats, and (3) are ettings, and (4) are net cage bottom framework (sinkers).
Fig. 4 is the partial enlarged drawing of Fig. 3-2, and (3) are ettings, and (4) are net cage bottom framework (sinkers), and (5) are that rectangular net is scraped, and (6) are the annular frameworks, and (7) are Ω shape snap rings, and (8) are connection cords.
The specific embodiment
Like Fig. 2; Be assembled into the annular framework (6) that has cross with existing plastic tube (PPR) and plastics standard component pipe joint, threeway, four-way; Through Ω shape snap ring (7) rectangular net being scraped (5) tightens together with annular framework (6); Form that parts---the ring-shaped frame net is scraped, put it in the circular net cage, below through connection cord (8) connection box posture sinker (9) (like Fig. 3).
The structure of this " device " can make net scrape part and be deep in the mesh of etting, and the size that its single net is scraped should be decided according to the size of etting mesh.Facts have proved that can only keep the service life of gauze brush about half a year and (change the gauze brush complex operation, take a lot of work greatly), and can keep at least the service life that net is scraped more than 3 years, cleaning performance is also obvious, is better than " device " of brush structure.
In Fig. 3, the upper-lower position of the relative seabed C of circular net cage is determined by the tide is flowing and ebbing.
During Fig. 3-2 expression high tide, the ring-shaped frame net is scraped under the gravity effect of frame-type sinker (9), moves downward the bottom of annular net cage, drops on the bottom framework (4) of circular net cage.Fig. 3-1 expression seawater at ebb tide, frame-type sinker (9) falls into the seabed, the ring-shaped frame net is scraped the influence that does not receive frame-type sinker (9) gravity, leans on self buoyancy upwards to run to the top (position on sea) of net cage.Net scrape (5) relatively etting (3) move up and down can reach to etting (3) certain scrape the effect of washing.
In said process; When wave forms on the sea of circular net upper box part certain; Circular net cage can rise to certain height by wave at a slant with the float on the net cage (2), and moment falls back to than original lower position and returns to original position (before next wave does not arrive) gradually then.Because the constraint of not tightening rope; And the ring-shaped frame net is scraped the size that peripheral size is slightly less than net cage; This make the ring-shaped frame net scrape in net cage relatively motion of net cage not exclusively is the fluctuating of above-below direction, can also produce the uncertain oscillating motion of direction all around, this random motion that is produced by wave more has impulsive force than the motion that the simple buoyancy that leans on the ring-shaped frame net to scrape produces; Frequency is high, scrape that to wash effect obvious; For the volume that dwindles the annular framework provides prerequisite, can significantly save the manufacturing materials of annular framework, connection cord (8) is attenuated; Frame-type sinker (9) weight lightens, and reduces the manufacturing cost of " device ".
The size of trend twice change direction every day and flow velocity in the ocean; The ring-shaped frame net is scraped the impact meeting that receives trend and is swung to direction of tide; The size of its impulsive force is directly proportional with effective lifting surface area (diameter of annular framework diameter * plastic tube) of tidal current speed and annular framework; Its effective area should be set according to culturing sea area trend size, and big this effective area of trend can be littler, otherwise big; Principle is a side that when trend is big, the ring-shaped frame net is scraped to be close to automatically circular net cage, follows the change of direction of tide to be close to the opposite side of circular net cage more then.This is that power realization net is scraped the technical scheme that is close to net cage automatically with the trend, has saved to tighten rope and the loaded down with trivial details operation of tightening rope is installed, and still can realize cleaning automatically net cage under water.
The expression state of connection cord (8) at ebb tide and at the incoming tide respectively in Fig. 3-1 and Fig. 3-2, its length can be according to the depth and the net cage height setting of culturing the sea area.Ought can make frame-type sinker (9) break away from the seabed in principle at the incoming tide, the ring-shaped frame net is scraped the bottom of moving net cage to, drop on the net cage bottom framework (4), the ring-shaped frame net is scraped risen to net cage top (position on sea).The available tube bending of frame-type sinker (9) is processed annular, and the actual weight in seawater should be decided according to the buoyancy that circular net cage float (2) and annular framework are produced.
The buoyancy that the annular framework is produced can calculate through following computational methods:
With the floating type circular net cage of diameter D=6 rice is example (below be converted into decimetre, and keep 2 significant digits)
Adopting outer is 0.05 decimeter through its wall thickness of plastic tube (PPR) for the D=0.5 decimetre, and proportion is, and: d=0.98 (approximating 1) does the annular framework, its open circles radius: r=(0.5-2 * 0.05)/2)=0.2 decimeter
Then the area of section of plastic tube is: S=π (D/2)
2-π r
2=3.14 * (0.25
2-0.2
2)=0.07 decimeter
2
Then the total length of annular framework plastic tube is: decimeter (see figure 2) of L=π * (D-2)+2 * (D-2)=3.14 * (60-2)+2 * (60-2)=(182.12+116)=298.12.Because of the ring-shaped frame net is scraped the peripheral size that size is slightly less than net cage, the diameter of annular framework is got 58 decimeters (pipe joint, threeway, four-way are regarded as plastic tube).
Then annular framework plastic tube self gross weight is: G=S * L * d=0.07 * 298.12 * 1=20.87 kilogram
Then annular framework cumulative volume is: V=S * L=π (D/2)
2L=3.14 * (0.5/2)
2* 298.12=58.51 decimetre
3
The proportion of seawater is at least d=1
Then the annular framework buoyancy that in seawater, can produce at least is: F is floating=and V * d=58.51 * 1=58.51 kilogram
Then the annular framework net buoyancy that in seawater, can produce at least is: F is floating=58.51-20.87=37.64 kilogram only
The ring-shaped frame net is scraped the buoyancy that every linear meter produces: floating=37.64/ (18.21)=2.07 kilogram/meter of F is used to overcome net and scrapes frictional force between (5) and the etting (3) (and the F of prior art " device of automatically cleaning ring-shaped frame style net cage by tidal wave underwater " float be 5.56 kilograms).
The weight of frame-type sinker (9) should be decided according to the ability to bear of above-mentioned result of calculation and net cage float; Frame-type sinker (9) the net weight power that in seawater, can produce is greater than net buoyancy that annular framework float produced more than 1 times in principle; So that when high tide, can produce enough pulling force, it is pulled to the bottom of Square Net-cage.
Culture about 5 meters stroke demands that can satisfy general aquaculture net cage of sea area tidal range, height can be processed double-deck perhaps sandwich construction to satisfy its demand to stroke and intensity with the annular framework at the net cage more than 5 meters.
Claims (3)
1. the device that cleans automatically under water of ring-shaped frame net cage is in floating type net cage, to install a ring-shaped frame net additional to scrape, and it is to scrape (5) by annular framework (6) and rectangular net to assemble that this ring-shaped frame net is scraped; The annular framework assembles with existing plastic tube and plastics standard component elbow, threeway, four-way; The centre has cross, and undersized is in the peripheral size of net cage, and makes the proportion of its whole proportion much smaller than water; Pass through connection cord (8) connection box posture sinker (9) below the annular framework; It can be power with morning and evening tides and wave that this ring-shaped frame net is blown, and in net cage, moves up and down and swing all around, it is characterized in that: when wave forms on the sea of certain, net cage top; Net cage can rise to certain height by wave at a slant with the float on the net cage (2); Moment falls back to than original lower position and returns to original position gradually then, because the constraint of not tightening rope, and the ring-shaped frame net is scraped the size that peripheral size is slightly less than net cage; This motion that makes the ring-shaped frame net scrape relative net cage in net cage not exclusively is the fluctuating of above-below direction; Can also produce the uncertain oscillating motion of direction all around, this random motion that is produced by wave more has impulsive force than the motion that the simple buoyancy that leans on the ring-shaped frame net to scrape produces, and frequency is high, scrape that to wash effect obvious; For the volume that dwindles the annular framework provides prerequisite; Can significantly save the manufacturing materials of annular framework, the connection cord (8) of " device " attenuated, frame-type sinker (9) weight lightens, and reduces the manufacturing cost of " device "; The ring-shaped frame net is scraped the impact meeting that receives trend and is swung to direction of tide; The size of its impulsive force is directly proportional with effective lifting surface area of tidal current speed and annular framework, makes the ring-shaped frame net scrape a side that when trend is big, is close to net cage automatically, follows the change of direction of tide to be close to the opposite opposite side of net cage more then; This is that power realizes that net scrapes the technical scheme that is close to net cage automatically with the trend, has saved many and has tightened rope and the loaded down with trivial details operation of tightening rope is installed still can realizes cleaning automatically net cage under water.
2. the device that ring-shaped frame net cage according to claim 1 cleans under water automatically is characterized in that: the rectangular net on the quadra is scraped to be scraped by a plurality of nets and is rearranged.
3. the device that ring-shaped frame net cage according to claim 1 cleans under water automatically is characterized in that: the outline that net is scraped section is scraped the inner chamber profile to the net that coincides together at the end at the bottom of by two equal-sized part spherical crowns and is duplicated with outline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105700312A CN102476113A (en) | 2010-11-24 | 2010-11-24 | Underwater automatic cleaning device for annular frame type net cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105700312A CN102476113A (en) | 2010-11-24 | 2010-11-24 | Underwater automatic cleaning device for annular frame type net cage |
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| CN102476113A true CN102476113A (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105700312A Pending CN102476113A (en) | 2010-11-24 | 2010-11-24 | Underwater automatic cleaning device for annular frame type net cage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243594A (en) * | 2013-05-14 | 2013-08-14 | 青岛亿和海丽安防科技有限公司 | Deep sea anti-corrosion rope |
| CN103624041A (en) * | 2013-11-13 | 2014-03-12 | 烟台仁达自动化装备科技有限公司 | Washing device of deepwater net cage |
| CN107486450A (en) * | 2017-09-15 | 2017-12-19 | 合肥学院 | A kind of inflated rubber formula automatic flushing device for circular floating cage |
| CN107787893A (en) * | 2017-10-27 | 2018-03-13 | 中国水产科学研究院南海水产研究所 | Deep water mesh cage I-shaped link and double floating pipe type net cage frame construction maintenance methods |
| CN110800667A (en) * | 2019-11-28 | 2020-02-18 | 浙江海洋大学 | Automatic aquaculture net case of clean netting |
-
2010
- 2010-11-24 CN CN2010105700312A patent/CN102476113A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243594A (en) * | 2013-05-14 | 2013-08-14 | 青岛亿和海丽安防科技有限公司 | Deep sea anti-corrosion rope |
| CN103624041A (en) * | 2013-11-13 | 2014-03-12 | 烟台仁达自动化装备科技有限公司 | Washing device of deepwater net cage |
| CN107486450A (en) * | 2017-09-15 | 2017-12-19 | 合肥学院 | A kind of inflated rubber formula automatic flushing device for circular floating cage |
| CN107787893A (en) * | 2017-10-27 | 2018-03-13 | 中国水产科学研究院南海水产研究所 | Deep water mesh cage I-shaped link and double floating pipe type net cage frame construction maintenance methods |
| CN110800667A (en) * | 2019-11-28 | 2020-02-18 | 浙江海洋大学 | Automatic aquaculture net case of clean netting |
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Application publication date: 20120530 |