CN101375676B

CN101375676B - Vane type floater net scraper for automatically cleaning cylinder mould underwater

Info

Publication number: CN101375676B
Application number: CN2008101309322A
Authority: CN
Inventors: 敖志辉
Original assignee: 敖志辉
Current assignee: Dalian long dragon aquatic products technology promotion Co., Ltd.
Priority date: 2007-08-29
Filing date: 2008-08-28
Publication date: 2011-08-24
Anticipated expiration: 2028-08-28
Also published as: CN101356898B; CN101356898A; CN101356899B; CN101356899A; CN101375676A; CN101361470A; CN201328305Y; CN101361470B

Abstract

A vane type floater net scraper for automatically cleaning a net cage under the water relates to the prevention of fouling on a net cage for the agriculture and buoyancy raft culture on the sea, and comprises vanes, ring-shaped hollow floaters and net scrapers. The vanes are arranged at the outer ring of the ring-shaped hollow floaters. The vanes and the ring-shaped hollow floaters form a certain angle in the axial direction. The (partial) sphere crown-shaped net scrapers are arranged at the inner ring of the ring-shaped hollow floaters, so that the ring-shaped vane type hollow floater net scrapers are formed and sleeved on the net cage, and can not be divorced from the net cage from the up and down directions. The ring-shaped vane type hollow floater net scrapers can move to the net cage bottom under the action of tidal current when the tidal current increases to a certain extent, and freely float to the top of the net cage by using the self buoyancy when the tidal current slows down to a certain extent. The ocean wave can improve the movement frequency to the local net cage from the vane type floater net scrapers, so that the fouling can not be attached on the net cage and grow. The invention has the beneficial effects of energy saving, emission reduction, labour saving and environmental protection.

Description

A kind of vane type buoy net scraper that cylinder mould is cleaned under water automatically

Technical field

The present invention relates to preventing and kill off of stained thing on agricultural, the marine buoyancy raft net cage culture cylinder mould, is to be that power is under water to cylinder mould a kind of vane type buoy net scraper of cleaning automatically at any time with stream and wave.

Technical background

China marine site is vast, and the mariculture industry development is swift and violent, and cultured output occupies first of the world, and wherein shellfish culture accounts for more than 70% of gross yield, and what extensively adopt at present is buoyancy raft net cage culture.Marine shellfish is cultured the research of preventing and kill off of stained thing on the cylinder mould and is carried out for many years, and domestic and international many papers all have report, is to cause one of shellfish undergrowth and main causes of death attached to the stained thing on the cylinder mould to the influence of cultivated shellfish.How effectively to prevent and kill off the stained thing of culturing on the cylinder mould and become one of important subject of culture fishery.

At present extensively the cage that is down that adopts manually cleans cylinder mould, and the cylinder mould that is about to overwork stained thing falls down and is dragged on the bank with ship, through fermentation, airing, wheel load, beat, tow back to ship after the cleaning, bundling again and culture the sea area, carries out the cage of next round.Culturing with the smooth shellfish of shrimp is example, and only this work will be carried out 2-3 time between mature stage, can Yin Wendu in this process and dried up back material culture factor such as run foul of each other cause the part of cultivated shellfish to damage.

Ship repeatedly comes and goes operation and has not only strengthened labour cost, and ship also discharged a large amount of carbonic acid gas when consuming a large amount of diesel oil, and on the coast in all processes of Qing Xiing, the attachment that has rotted in a large number can bring new pollution to the sea area.

Summary of the invention

In order to remove stained thing from the source supernatant, make it to be difficult on cylinder mould, to adhere to existence, avoid in the process of falling the cage the damage of cultivated shellfish, eliminate artificial cleaning cylinder mould and take a lot of work, consume energy and the pollution of environment.

The present invention adopts a kind of technical scheme to be: a ring-shaped vane type hollow float of suit net is scraped on existing cylinder mould, this ring-shaped vane type hollow float net is scraped can be under the effect of ocean current and wave, realization moves up and down to cylinder mould, reaches scraping of cylinder mould washed purpose.The invention has the beneficial effects as follows: improve the agricultural standardization level of production, reduce the buoyancy raft net cage culture cost, promote and the non-harmful healthy growth of protection cultivated shellfish, energy-conservation, reduction of discharging, saving of labor, environmental protection, effect are obvious.

Description of drawings

Fig. 1 is the front view that ring-shaped vane type hollow float net of the present invention is scraped

Fig. 2 is A-A cutaway view and the B-B broken section enlarged drawing that ring-shaped vane type hollow float net of the present invention is scraped

Fig. 3 residing location drawing that is cylinder mould when different trend size and Orientation.3-1 among Fig. 3 is cross flow (flow velocity is similar to zero during full sea), the residing relative position figure of cylinder mould and ring-shaped hollow buoy net scraper.Trend increased to a certain degree cylinder mould and the residing relative position figure of ring-shaped hollow buoy net scraper when 3-2 among Fig. 3 and 3-3 were half tide.(1) is buoyant spheres among Fig. 3, and (2) are lifting ropes, and (3) are the raft bodies, and (4) are the cylinder mould upper spacers, and (5) are that ring-shaped vane type hollow float net is scraped, and (6) are cylinder moulds, and (7) are sandbags, and (8) are locating rings.The position on sea when A represents full sea, the position on sea when B represents half tide.

To be cylinder mould scrape stress schematic diagram under the buoyancy at ring-shaped vane type hollow float net to Fig. 4.(5) are that ring-shaped vane type hollow float net is scraped among the figure, and (6) are cylinder moulds, and D represents that ring-shaped vane type hollow float net scrapes the stress point of cylinder mould when the cylinder mould axial line moves downward.

Fig. 5 is a locating ring and stop the bolt assembly drawing, and (9) are locating rings among the figure, and (10) are to stop bolt.

Embodiment

The whole proportion that control ring-shaped vane type hollow float net is scraped, the float partial design that ring-shaped vane type hollow float net is scraped becomes the hollow float chamber of annular.(see figure 2)

Be furnished with equally distributed blade at the outer shroud of ring-shaped hollow float chamber, blade and the axial shape of ring-shaped hollow float chamber have a certain degree, and make it can produce certain rotational component under trend is impacted, and each blade equal and opposite in direction are parallel to each other.

The configuration design that net is scraped becomes two equal-sized part spherical crowns, and its end coincided together the end of to, the outline of its section is docked up and down by two identical camber lines and constitutes, the outer edge of section, angle clearly demarcated (seeing the B-B cutaway view Amplified image among Fig. 2 and Fig. 2), and the axial line shape that makes net scrape axial line and ring-shaped hollow float chamber have a certain degree (seeing the G angle among Fig. 2).

Make again ring-shaped vane type hollow float net scrape in the minimum diameter of ring greater than the external diameter of cylinder mould central dividing plate (see figure 4) more than 30 millimeters, the external diameter that strengthens the cylinder mould upper spacer makes its internal diameter of scraping greater than ring-shaped vane type hollow float net, by hole, garden above it and cylinder mould lower clapboard (the cylinder mould dividing plate all the has circular hole) (see figure 5) that is stitched together ring-shaped vane type hollow float net is scraped up and down with cotton rope locating ring (9) again and can not be broken away from cylinder mould.(see figure 3)

Trend can be with the fluctuation of morning and evening tides, and twice of every day changes the size of direction and flow velocity, causes cylinder mould every day correspondingly to change the pivot angle size at different directions.(flow velocity approaches zero during full sea) cylinder mould is basically perpendicular to the sea when being slug flow as the 3-1 among Fig. 3, and do to swing slightly, the ring-shaped hollow buoy net scraper is by the buoyancy of self, free floating is to the top of cylinder mould, (not requiring the acting of ring-shaped hollow buoy net scraper this moment), along with the continuous increase of trend, cylinder mould can be swung certain angle-α pivot angle to direction of tide.When the α pivot angle increases to a certain degree, ring-shaped vane type hollow float net is scraped under the impact of trend, can progressively move to the bottom of cylinder mould along cylinder mould direction of axis line (rotation), as the 3-2 among Fig. 3, slowing down along with trend then, the α pivot angle is reduced to zero gradually, ring-shaped vane type hollow float net is scraped the top of free floating to cylinder mould again, swing to the α pivot angle round about greatly to a certain degree the time when cylinder mould then again, ring-shaped vane type hollow float net is scraped the bottom that progressively moves to cylinder mould once more along cylinder mould direction of axis line (rotation), as the 3-3 among Fig. 3.At this moment, sandbag (7) can prevent that cylinder mould bottom from upwards floating, and stops that bolt (10) can stop that ring-shaped vane type hollow float net is scraped and continue rotation herein on the locating ring.(see figure 5) ring-shaped vane type hollow float net is scraped and realize two strokes up and down every day on cylinder mould, reaches scraping of cylinder mould washed purpose.

Ring-shaped vane type hollow float net is scraped the upwards buoyancy size of free floating, and ring-shaped vane type hollow float net is scraped when the cylinder mould axial line moves downward the stress and the big I of cylinder mould and analyzed out by following simple computation:

According to the given size of Fig. 2 (becoming decimetre result of calculation to keep two-decimal dimension conversion)

If the average diameter of ring-shaped hollow float chamber is: D=(412+376)/2=394 millimeter=3.94 decimeter

If the mean radius of ring-shaped hollow float chamber is: R=394/2=197 millimeter=1.97 decimeter

Then the average perimeter of ring-shaped hollow float chamber is: L=2 π R=2 * 3.14 * 1.97=12.4 decimetre

Then the sectional area of ring-shaped hollow float chamber is: S=(4.12-3.76)/2 * 0.2=0.036 decimetre ²

Then the drainage discharge of ring-shaped hollow float hollow chamber is: V=LS=12.4 * 0.036=0.45 decimetre ³

(proportion of seawater is at least 1)

(if with the proportion of plastic injection-moulded then plastics between 0.95-1) so the weight of plastics in seawater can be ignored

Then ring-shaped vane type hollow float net is scraped the net buoyancy of generation and is: floating=0.45 kilogram=450 grams of F

This F is floating can be satisfied ring-shaped vane type hollow float net and scrapes (vertical during with the sea at cylinder mould) free floating makes progress.Increase to a certain degree and work as cylinder mould α pivot angle under the trend effect, ring-shaped vane type hollow float net is scraped along cylinder mould axial line (rotation) when moving downwards, ring-shaped vane type hollow float net is scraped under buoyancy, its Lower Half branch is attached to the diametric bottom of cylinder mould (seeing 3-2 and 3-3 among Fig. 4 and Fig. 3), scrape when washing, net is scraped the sub-fraction at edge and is had an opportunity to be deep in the etting mesh, can make scrape wash more abundant.Because it is clearly demarcated that net is scraped the peripheral edge portion angle, (seeing the B-B broken section enlarged drawing among Fig. 2) and the braiding etting nylon wire very thin, diameter is generally between the 0.8-1 millimeter, both are actually a contact, (see figure 4) contact point D stress is concentrated, and big this of pressure can more effective increase be scraped the dynamics of washing.

Wave (under the cooperation of trend) can improve ring-shaped vane type hollow float net greatly and scrape the motion frequency of (effectively).When wave forms on the sea on cylinder mould top, cylinder mould can rise to certain altitude by wave with buoyant spheres, in this rapid movement process, because ring-shaped vane type hollow float net is scraped and is subjected to the seawater drag effects, movement velocity is always less than cylinder mould, will produce relative motion between the two, this moment since α pivot angle and F exist floating the time, ring-shaped vane type hollow float net is scraped always had an opportunity to be close to automatically cylinder mould, thereby reaching moment scrapes the purpose of washing, although the stroke of this motion is little different according to the wave is high, neither can both make substantive useful the moving of generation between the two by all waves, but this just wave random motion and high frequency, just make net scrape with cylinder mould between the different direction of the different angle in different positions constantly produce the friction and the bump, thereby reach cleaning purpose, make stained thing be difficult on cylinder mould, adhere to existence cylinder mould integral body.

Claims

1. vane type buoy net scraper that cylinder mould is cleaned under water automatically: it is sleeved on the cylinder mould, make the diameter of the minimum diameter of ring in it greater than the cylinder mould central dividing plate, strengthen the diameter of cylinder mould upper spacer, and the cylinder mould lower clapboard loaded onto locating ring, make the vane type buoy net scraper all can not break away from cylinder mould up and down, it is characterized in that: the vane type buoy net scraper is an annular, outer ring portion has blade, annular inner portion has net to scrape, between scraping, blade and net be the ring-shaped hollow float chamber, this vane type buoy net scraper leans on the top of the buoyancy free floating of self to cylinder mould when cylinder mould is basically perpendicular to the sea, continuous increase along with trend, cylinder mould can be swung certain angle to direction of tide, when pivot angle increases to a certain degree, the vane type buoy net scraper is under the impact of trend, can rotate the bottom that progressively moves to cylinder mould along the cylinder mould direction of axis line, the sandbag of cylinder mould bottom can prevent from upwards to float bottom the cylinder mould, locating ring on the cylinder mould lower clapboard has the bolt of stopping to continue rotation herein by blocking vane formula buoy net scraper, along with slowing down of trend, the pivot angle of cylinder mould is reduced to zero gradually, the vane type buoy net scraper can float to the top of cylinder mould once more, then when cylinder mould is swung round about, repeat above-mentioned action, when wave forms on the sea on cylinder mould top, because buoyant spheres connects cylinder mould below by lifting rope, cylinder mould can rise to certain altitude by wave with buoyant spheres, in this rapid movement process, because the vane type buoy net scraper is subjected to the seawater drag effects, movement velocity is always less than cylinder mould, will produce relative motion between the two, the vane type buoy net scraper can be realized cylinder mould is moved up and down under the effect of trend and wave.

2. a kind of vane type buoy net scraper that cylinder mould is cleaned under water automatically according to claim 1 is characterized in that: each the blade equal and opposite in direction on the vane type buoy net scraper is parallel to each other and forms certain included angle with ring-shaped hollow float chamber axial line.

3. a kind of vane type buoy net scraper that cylinder mould is cleaned under water automatically according to claim 1, it is characterized in that: the profile that net is scraped coincides together the end of at the bottom of by two equal-sized part spherical crowns, the outline of its section is docked up and down by two identical camber lines and constitutes, and the outer edge angle is clearly demarcated.

4. a kind of vane type buoy net scraper that cylinder mould is cleaned under water automatically according to claim 1, it is characterized in that: the axial line of axial line that net is scraped and ring-shaped hollow float chamber has certain included angle.

5. a kind of vane type buoy net scraper that cylinder mould is cleaned under water automatically according to claim 1, it is characterized in that: the interior profile of ring-shaped hollow float chamber section is a rectangle.