CN1170473C - Tank type float/sink deep water net cage - Google Patents

Abstract

The present invention relates to a tank type floating and sinking deep water net cage which comprises inner rings, outer rings, top rings, a net bottom ring, support frames, air storage tanks, floating and sinking tanks, a high pressure flexible pipe, a low pressure flexible pipe, a balancing pipe, an air inlet valve, an air exhaust valve, a communicating valve, a safety valve, a cover net and a barrel-shaped net, wherein the inner rings, the outer rings and the top rings are fixed by the support frames to form an upper frame of the net cage; the air storage tanks and the floating and sinking tanks are distributed in the circumference of the upper frame; the air storage tanks are all communicated with a high pressure pipe which is connected with the high pressure flexible pipe, the air inlet valve and the communicating valve; the floating and sinking tanks are all connected with an air pipe, wherein one end of which is connected with the low pressure flexible pipe, the air exhaust valve and the communicating valve and the other end of which is connected with the floating and sinking tanks; the balance pipe is connected under the floating and sinking tanks, and the safety valve is connected under the balance pipe. For the convenience of operation of a person on the net cage, each support frame forms an L shape, the inner and the outer rings are fixed to the lower parts of the support frames, and the air pipe and the top rings are fixed to the upper part of the support frames. The inner rings, the outer rings and the top rings are all made of composite steel plastics (the surfaces of the rings are plastic, and the inner surfaces are steel). The present invention has the advantages that the operation is simple and convenient, the safety valve lies in a normally open state in the period of frequent big wind wave in an ocean, the air exhaust valve is opened to cause the net cage to sink to a set depth, and the net cage can automatically float on the water surface when.

Description

Tank type float/sink deep water net cage

[technical field]

The present invention relates to a kind of deep water mesh cage, the tank type float/sink deep water net cage of especially a kind of wind wave resistance and red tide.

[background technology]

Fish culture in net pen is the topmost mode of mariculture, has very vast potential for future development.The tradition cage structure is simple, and framework is mainly with materials processings such as planks, the wind wave resistance poor performance, and small scale, service life is short, and can only influence the development of mariculture industry in inner bay and offshore setting.Develop novel net cage, the development deep water mesh cage is breeded fish, and utilizes new and high technology that traditional net cage is transformed, and has become the matter of great urgency.Oceanography Institute Of Zhejiang has born project, the Zhejiang Province's science and technology Xinghai County's key project " large-scale deep-water netted case resisting wind and wave and efficient cultural technique research " of listing country " 863 " plan in, (seeing report in " Chinese ocean newspaper " on March 29th, 2002), the characteristics that project team is big according to deep water sea area wind, wave is high, stream is anxious, the appropriate design structure, elevation (over-and-under) type underframe, multi-level and air bag elevated live cage have been succeeded in developing in innovation, this deep water mesh cage performance indications reach 12 grades of wind resistance power, anti-wave is high 5 meters, anti-current speed 1 meter per second.Satisfy the needs of China's mariculture.But in actual applications, also have some defectives: (1) adopts special-purpose HDPE pipe cost cost height, is difficult to large tracts of land and promotes; (2) sedimentation imbalance, easy run-off the straight when net cage sinks is run helter-skelter the shoal of fish; (3) adopt the tubular structure inflatable drainage, need to give inflation, use inconvenient with the ship of band air compressor; (4) the stressed sectional area that impacted by seawater is big; (5) support is unfavorable for that the people walks in the above, in the above inconvenient operation and safety.

[summary of the invention]

Purpose of the present invention designs a kind of tank type float/sink deep water net cage exactly, and its cost is low, and is durable in use, and structural safety is reliable, and the sudden and violent performance of wind resistance is good, and Compressed Gas is provided in steadily landing for oneself during sink-float, need not special-purpose inflatable dinghy, and the people is easy to operate on net cage, safety.

The present invention is achieved like this, it comprises inner ring, the outer ring, collar, the net bottom circle, support, air accumulator, jar drifts along, high-pressure hose, low-pressure hose, balance pipe, intake valve, air bleeding valve, coupling cock, safety valve, cover net, barrel-shaped net, with several supports with inner ring, the outer ring, collar is fixed, constitute the upper frame of net cage, be distributed with several air accumulators and the jar that drifts along in around upper frame, all air accumulators all communicate with high-voltage tube, high-voltage tube connects high-pressure hose and intake valve and coupling cock, the jar that drifts along all is connected with tracheae, tracheae one end connects low-pressure hose and air bleeding valve and coupling cock, the other end connects the jar that drifts along, drifting along connects a balance pipe below the jar, connects safety valve below the balance pipe.In order to make the people easy to operate on net cage, support is the L type, and inside and outside circle is fixed in the support bottom, and top is tracheae and collar fixedly.Inner ring, outer ring, collar all adopt clad steel to mould and make, and have so both guaranteed to have the anticorrosion advantage again by the intensity height, and the stressed sectional area when making net cage impacted by seawater is little.

The present invention has following advantage: (1) provides air accumulator for oneself and the jar that drifts along, and inflatable drainage when rising, need not to inflate with the ship of band air compressor automatically; (2) all drift along during jar inflatable drainage stressed evenly, net cage can not tilt during sedimentation, causes the shoal of fish to run helter-skelter; (3) inner ring of net cage, outer ring, collar all adopt clad steel to mould to make, and the sectional area that impacted by seawater is little, and the performance of wind wave resistance, anti-high current is good; (4) adopt L type support fixed network box-frame, the people walks conveniently in the above, handling safety.

[description of drawings]

Fig. 1 is a semi-section schematic diagram of the present invention.

The schematic diagram that Fig. 2 is an air accumulator, the jar that drifts along is connected with tracheae.

Fig. 3 is the schematic diagram of support.

[embodiment]

As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes inner ring (21), outer ring (20), collar (23), net bottom circle (18), support (22), air accumulator (9), drift along jar (13), high-pressure hose (7), low-pressure hose (6), balance flexible pipe (14), intake valve (2), air bleeding valve (1), coupling cock (5), safety valve (15), cover net (12), barrel-shaped net (17), with several supports (22) with inner ring (21), outer ring (20), collar (23) is fixing, constitute the upper frame of net cage, be distributed with several air accumulators (9) in around upper frame and drift along jar (13), all air accumulators all communicate with high-voltage tube (10), high-voltage tube connects high-pressure hose (7) and intake valve (2) and coupling cock (5), compressed air can enter in the net cage air accumulator all around simultaneously, people can inject compressed air in the air accumulator in advance by intake valve and store for future use, have manometer (8) on the high-voltage tube and can show air pressure, the jar (13) that drifts along all is connected with tracheae, tracheae (11) connects low-pressure hose (6) and air bleeding valve (1) and coupling cock (5), the other end connects the jar that drifts along, drift along and connect a balance pipe (14) below the jar, connect safety valve (15) below the balance pipe (14), when net cage floats on the surface at ordinary times, the jar that drifts along is interior to be air, allow net cage sink, as long as open air bleeding valve, water injects the jar that drifts along from safety valve (15), the net cage balance is sunk, want to allow net cage rise, as long as open coupling cock (5), Compressed Gas in the air accumulator enters the jar that respectively drifts along equably by low-pressure hose, jar interior water that drifts along is extruded, and net cage rises evenly.On intake valve and air bleeding valve, be connected buoy (3), make valve always be exposed on the water surface, on the net cage with rope several ball floats (4) that play, several sinkers (19) play on net bottom circle (18), be connected with setting rope (16) between upper frame and the net bottom circle, use barrel-shaped net (17) to wrap all around, the top of net cage covers with cover net (12).Support (22) is made with the HDPE material, inside and outside circle is fixed in its underpart, top is tracheae and collar fixedly, the people can walking around the net cage, handling safety, convenience, the stressed sectional area when impacted by seawater in order to reduce net cage with reduce production costs, inner ring, outer ring, collar all adopt clad steel to mould and make, so both guarantee high strength and corrosion resistance, significantly reduced the stressed sectional area of net cage when impacted by seawater again, improved its wind wave resistance performance greatly.

Claims (2)

1, a kind of tank type float/sink deep water net cage, it comprises inner ring, the outer ring, collar, the net bottom circle, support, air accumulator, jar drifts along, high-pressure hose, low-pressure hose, balance pipe, intake valve, air bleeding valve, coupling cock, safety valve, cover net, barrel-shaped net, it is characterized in that several supports are with inner ring, the outer ring, collar is fixed, constitute the upper frame of net cage, be distributed with several germanium gas tanks and the jar that drifts along in around upper frame, all air accumulators all communicate with high-voltage tube, high-voltage tube connects high-pressure hose and intake valve and coupling cock, tracheae one end connects low-pressure hose and air bleeding valve and coupling cock, the other end connects the jar that drifts along, drifting along connects a balance pipe below the jar, and balance pipe connects safety valve down.

2, tank type float/sink deep water net cage according to claim 1 is characterized in that inner ring, outer ring, collar, net bottom circle all adopt Composite steel-plastic pipe to make.

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