CN104430059A

CN104430059A - Method for automatically cleaning net cage underwater

Info

Publication number: CN104430059A
Application number: CN201310436066.0A
Authority: CN
Inventors: 敖志辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-24
Filing date: 2013-09-24
Publication date: 2015-03-25

Abstract

The invention relates to removal of fouling organisms on seaborne buoyant raft culture net cages, in particular to a method for automatically cleaning a net cage underwater. A bamboo pole penetrates through round holes in the centers of net cage separating plates in sequence, the net cage is straightened to the longest supporting state, the diameters of netting are basically identical, the net cage separating plates are on the same axis, the net cage is sleeved with a net scraper, locating rings are arranged on the upper and lower net cage separation plates so that the upper portion and the lower portion of the net scraper cannot be separated from the net cage, a sandbag is arranged on the lower portion of the net cage so that the time of the net cage drooping on the sea surface can be prolonged, the net cage is connected with a raft body through hanging ropes, and the upper portion of the raft body is connected with a buoyancy ball through a buoyancy rope. The net scraper can float to the top of the net cage without tides, the net scraper can move to the bottom of the net cage when the tides are increased to a certain degree, the net scraper can do high-frequency motion on the local portion of the net cage in the process through sea waves, and the movement has larger impact force so that the fouling organisms cannot be attached to the net cage to survive. The method has the advantage that the work efficiency of automatically cleaning the net cage underwater by the net scraper is improved.

Description

A kind of method of cylinder mould underwater automatic cleaning

Technical field

The present invention relates to preventing and kill off of fouling organism on agriculture marine buoyant raft aquiculture mesh cage, is for power is to a kind of method of cylinder mould underwater automatic cleaning with trend and wave.

Background technology

The patent such as " a kind of method to cylinder mould underwater automatic cleaning ", " a kind of device to cylinder mould underwater automatic cleaning " is authorized at present, and concrete technical scheme is all be sleeved on by a kind of circular ring buoy net scraper (scraping hereinafter referred to as net) on cylinder mould and make it all can not depart from cylinder mould up and down.Its operation principle is: when not having trend, and cylinder mould is perpendicular to sea, and the top floating to cylinder mould by natural buoyancy scraped by net; Can swing to direction of tide along with trend constantly increases cylinder mould, when the angle swung reaches certain level degree, the bottom moving to cylinder mould under the pulling of trend scraped by net.Facts have proved and to scrape in the process that relative cylinder mould moves up and down at net, the configuration of cylinder mould be there are certain requirements.The cylinder mould of current use, be connected by etting between dividing plate with dividing plate, this soft connection causes the etting diameter between two dividing plates inconsistent, local diameter the closer to dividing plate is larger, can diminish at the etting diameter in two dividing plate centre positions, in addition owing between net cage separator with dividing plate being soft connection, cylinder mould under water time, dividing plate entirety is not often on same axial line, above-mentioned two kinds of reasons can make net swipe in a certain position of cylinder mould, are difficult to realize predetermined net and scrape moving up and down of relative cylinder mould.

Summary of the invention

Make net swipe in a certain position of cylinder mould to overcome existing cylinder mould, be difficult to realize the technology drawback moved up and down that relative cylinder mould scraped by predetermined net, the invention provides a kind of new technical side by: insert a bamboo pole in the middle of the net cage separator, etting diameter can not only be made basically identical, and can make each net cage separator on same axial line.

The technical scheme that the technical problem that the present invention solves adopts is: net cage separator is transformed into central authorities with circular hole, circular has multiple length that is uniformly distributed equal and perpendicular to the gap of circular hole, bamboo pole diameter being greater than circular hole in the middle of net cage separator passes from the circular hole of each net cage separator central authorities successively, and props up state by stretching for cylinder mould to the longest.The automatic banding bamboo pole of elasticity that circular hole in the middle of each net cage separator can utilize plastics itself to have, makes the etting diameter on cylinder mould basically identical, and can make net cage separator all on same axial line.

The invention has the beneficial effects as follows, reduce net and scrape the probability violating card on cylinder mould, the operating efficiency to cylinder mould underwater automatic cleaning scraped by raising net.

Accompanying drawing explanation

Below in conjunction with accompanying drawing and case study on implementation, the present invention will be further described.

Fig. 1-1 in Fig. 1 is the overall structure figure of cylinder mould, and Fig. 1-2 is the partial enlarged drawing of Fig. 1-1, and in Fig. 1,6. is cylinder moulds, is 9. bamboo poles, is 10. net cage separators.

Fig. 2 is the net cage separator of middle with hole.

Fig. 3 is fundamental diagram of the present invention.Fig. 3-1 in Fig. 3 is when not having trend, and net is scraped and the relative position figure residing for cylinder mould, and the Fig. 3-2 in Fig. 3 is that trend increases to a certain degree with Fig. 3-3, and net is scraped and the relative position figure residing for cylinder mould.In Fig. 3,1. is buoyant spheres, is 2. buoyancy ropes, is 3. raft bodies, is 4. lifting ropes, is 5. circular ring buoy net scrapers, is 6. cylinder moulds, is 7. sandbags, is 8. locating rings, α. represent cylinder mould pivot angle, the position on sea when A. represents full sea, B. represents the position on half time of tide sea.

Embodiment

By Fig. 2 by disposable for net cage separator compression or injection mo(u)lding, make net cage separator central authorities have circular hole, circular has multiple length that is uniformly distributed equal and perpendicular to the gap of circular hole, then etting and dividing plate to be stitched together by traditional handicraft and to make cylinder mould.The bamboo pole in use diameter being greater than circular hole in the middle of cylinder mould passes from the circular hole of each net cage separator central authorities successively, and props up state by stretching for cylinder mould to the longest.Net is scraped and is sleeved on cylinder mould, and lower clapboard is installed steering-wheel-shaped positioning ring on cylinder mould and net is scraped all can not depart from cylinder mould up and down, a sandbag is installed below cylinder mould and can extends the time that cylinder mould falls in sea.Be connected with raft body by lifting rope by cylinder mould, raft with it face is connected with buoyant spheres by buoyancy rope.

Marine tidal-current energy changes the size of direction and flow velocity twice daily with the change of tide, causes cylinder mould every day correspondingly to change pivot angle size at different directions.During full sea, tidal current speed levels off to zero, and cylinder mould is perpendicular to sea, and the top (Fig. 3-1 as in Fig. 3) floating to cylinder mould by self buoyancy scraped by net; Along with the continuous increase of trend, cylinder mould can swing certain angle-α pivot angle to direction of tide, and when α pivot angle increases to a certain degree, the bottom (Fig. 3-2 as in Fig. 3) moving to cylinder mould under the impact of trend scraped by net.Then along with trend slows down, cylinder mould in the opposite direction repeats above-mentioned action (as in Fig. 3 perpendicular to sea again

Fig. 3-3).Change every day that net is scraped according to trend realizes two large strokes up and down at cylinder mould.

In above process, when wave is formed on the sea on cylinder mould top, cylinder mould rises to certain height with buoyant spheres by wave, in this rapid movement, owing to being subject to seawater drag effects, the movement velocity that net is scraped always is less than cylinder mould, and both will produce relative motion.This is that the high frequency motion of the local of power has impulsive force with wave, makes fouling organism cannot adhere to existence on cylinder mould.

Claims

1. a kind of method of cylinder mould underwater automatic cleaning, net cage separator is transformed into central authorities with circular hole, circular has multiple length that is uniformly distributed equal and perpendicular to the gap of circular hole, bamboo pole diameter being greater than circular hole in the middle of cylinder mould passes from the circular hole of each net cage separator central authorities successively, and by stretching for cylinder mould to the longest state of propping up, being scraped by net is sleeved on cylinder mould, and lower clapboard is installed steering-wheel-shaped positioning ring on cylinder mould and net is scraped all can not depart from cylinder mould up and down, a sandbag is installed below cylinder mould and can extends the time that cylinder mould falls in sea, cylinder mould is connected with raft body by lifting rope, raft with it face is connected with buoyant spheres by buoyancy rope, the top that can float to cylinder mould when not having trend scraped by this net, the bottom of cylinder mould can be moved to when trend is larger, it is characterized in that: in the middle of net cage separator, have bamboo pole to pass, make each net cage separator on same axial line, cylinder mould is in the state of propping up and etting diameter can be kept basically identical, net is made to scrape moving up and down of relative cylinder mould more smooth, fouling organism cannot be adhered on cylinder mould.