CN115428765A

CN115428765A - Modular aquaculture device

Info

Publication number: CN115428765A
Application number: CN202211212219.9A
Authority: CN
Inventors: 童成彪; 何康
Original assignee: Hunan Agricultural University
Current assignee: Hunan Agricultural University
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-06

Abstract

The invention discloses a modularized aquaculture device, which comprises a fish culture tank arranged in water, wherein a plurality of floating pieces are arranged on the fish culture tank, the fish culture tank is connected with an oxygenation mechanism and a pollution discharge mechanism, the fish culture tank comprises a front frame, a rear frame and a flexible tank connected between the front frame and the rear frame, the flexible tank comprises a flexible wall and at least one connecting piece connected between the front frame and the rear frame in a detachable mode, and a plurality of fixing pieces connected with the connecting piece are arranged on the flexible wall. The invention pulls the flexible wall through the connecting pieces, is connected with the connecting pieces through the fixing pieces to form a groove shape, and the two ends of the connecting pieces are respectively and fixedly connected with the front frame and the rear frame, thereby facilitating the migration and the extension of the fish culture groove.

Description

Modular aquaculture device

Technical Field

The invention relates to the technical field of aquaculture, in particular to a modular aquaculture device.

Background

At present, most of the water flowing channels in the domestic industrial aquaculture system are brick-concrete structures which can not be moved, the pond needs to be hardened, high construction cost needs to be borne, limitation is brought to the movement, extension and the like of an aquaculture factory, and certain obstruction is caused to large-area popularization and application; the influence of the water pushing speed of the water flowing tank on the sewage collecting efficiency and the fish body force is large, the research shows that the sewage collecting effect is influenced by the excessively low water pushing speed, the physical consumption of the fish is increased excessively, the phenomenon of water jacking of the fish occurs, but a feasible control criterion of the water pushing speed is not obtained; the existing IPA pond circulating water fish culture system has the problem of generally low dirt suction rate, and the dirt suction rate is generally 20-30%. The Chinese patent with publication number CN208113798U discloses an energy-saving pollution-reducing floating type running water fish tank, a fish tank body floats in a water body under the action of a floating tank ring, sewage and water are sucked and drained from a culture wastewater gathering room through a micro sewage suction pump, a water level difference is formed in the fish tank body, the water body enters an oxygen increasing room from a water inlet hole at the front end of the fish tank body, the water body enters the fish tank body after being subjected to oxygen increasing through an oxygen increasing micro pipe to form a micro-flow state, cultured fishes live in a micro-flow water environment, the drained culture wastewater is filtered through a solid waste filter bag, and is subjected to oxygen increasing and oxidizing through a water treatment oxygen increasing micro pipe, harmful substances in the wastewater are remarkably reduced, the water quality overflows from an overflow port after reaching standards, the standard, the cultured fishes are fed by using an automatic bait feeding machine, the running water is stopped during feeding, the oxygen is increased by using the oxygen increasing micro pipe, the dissolved oxygen in the water body is kept sufficient, the energy consumption is reduced, and the fish tank body is dragged to a proper position when the culture environment is untimely without interfering the water area; however, the fish culture tank is fixed, is inconvenient to move and expand, and has high construction cost.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects in the prior art and provide a modularized aquaculture device which is convenient to move and expand and has low construction cost.

In order to solve the technical problem, the invention adopts the following technical scheme:

the utility model provides a modularization aquaculture device, is including the groove of breeding fish of locating the aquatic, be equipped with a plurality of floating pieces on the groove of breeding fish, the groove of breeding fish is connected with oxygenation mechanism and drainage mechanism, the groove of breeding fish includes preceding frame and after-frame to and connect the flexible groove between preceding frame and after-frame, the flexible groove includes that flexible wall and at least one connect the connecting piece between preceding frame and after-frame in order to dismantle the mode, be equipped with a plurality of mountings of being connected with the connecting piece on the flexible wall.

Furthermore, each connecting piece is a steel wire rope, the end part of each steel wire rope is fixedly connected to the lifting ring screws of the front frame and the rear frame, the flexible wall is made of a knife scraping cloth material, and each fixing piece is a retaining ring or a rope.

Furthermore, the front frame is arranged at the water inlet end of the fish culture tank, the oxygenation mechanism comprises a fan and an oxygenation pipe which are arranged on the front frame, one end of the oxygenation pipe is communicated with the bottom of the water inlet end of the flexible tank, and the other end of the oxygenation pipe is communicated with the fan.

Furthermore, a plurality of aeration pipes which are arranged at intervals are arranged at the bottom of the inner side of the flexible groove, and each aeration pipe is communicated with an aerator through a hose.

Furthermore, an impeller is rotatably mounted on the front frame, the impeller is connected with a speed reducing motor and drives the impeller to splash water through the speed reducing motor, and the impeller is further connected with a lifting mechanism which is used for adjusting the impeller to ascend and descend so that the impeller is at least partially immersed in the water body.

Furthermore, each floating piece comprises a plurality of small floating cylinders and a plurality of large floating cylinders, each small floating cylinder is arranged on the flexible groove, and each large floating cylinder is arranged on the front frame and the rear frame.

Furthermore, the water outlet end of the fish culture tank is arranged on the rear frame, the sewage discharge mechanism comprises a sewage suction pump and a sewage collection pipe which are arranged on the rear frame, one end of the sewage collection pipe is communicated with the bottom of the water outlet end of the flexible tank, and the other end of the sewage collection pipe is communicated with the sewage suction pump.

Furthermore, the bottom end of the rear frame is provided with a sewage collecting groove communicated with the flexible groove, the groove bottom of the sewage collecting groove is obliquely and downwards arranged from the flexible groove to the water outlet end, and the sewage collecting pipe is communicated with the bottom end of the sewage collecting groove.

Furthermore, a water baffle, a filter plate and a fishing net are arranged in the sewage collecting groove, the filter plate is arranged in front of a water inlet of the sewage collecting groove, the water baffle is arranged in front of a water outlet end of the sewage collecting groove, and the top end of the water baffle is higher than the upper end of a water passing groove formed by the fishing net.

Furthermore, a filter plate which is positioned in front of the sewage collecting groove and is perpendicular to the length direction of the flexible groove is arranged in the rear frame, the periphery of the filter plate is fixedly connected with the rear frame, and the filter plate comprises a punching plate with a small mesh number and a fishing net with a large mesh number which are spliced along the length direction of the flexible groove.

Compared with the prior art, the invention has the advantages that:

the invention draws the flexible wall through the connecting pieces, is connected with the connecting pieces through the fixing pieces to form a groove shape, and the two ends of the connecting pieces are respectively and fixedly connected with the front frame and the rear frame, so that the moving and the extension of the fish culture groove are facilitated.

Drawings

Fig. 1 is a schematic structural view of a modular aquaculture apparatus.

Fig. 2 is a schematic perspective view of a modular aquaculture apparatus.

Fig. 3 is a schematic structural view of the front frame.

Fig. 4 is a schematic structural view of the filter screen.

Fig. 5 is a schematic structural view of the water guard plate.

Fig. 6 is a schematic view of the structure of the flexible slot.

Fig. 7 is a schematic structural view of an aeration pipe.

Illustration of the drawings:

1. a fish tank; 11. a front frame; 111. a lifting eye screw; 12. a rear frame; 13. a flexible slot; 131. a flexible wall; 132. a connecting member; 133. a fixing member; 2. a float member; 3. an oxygenation mechanism; 31. a fan; 32. an oxygenation pipe; 33. an impeller; 4. a sewage disposal mechanism; 41. a sewage suction pump; 42. a sewage collecting pipe; 5. an aeration pipe; 51. a hose; 52. an aerator; 6. a sewage collecting tank; 7. a water baffle; 8. a filter plate; 9. a fishing net.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

As shown in fig. 1-7, the modular aquaculture device of this embodiment includes a fish tank 1 disposed in water, a plurality of floating members 2 are disposed on the fish tank 1, the fish tank 1 is connected with an oxygenation mechanism 3 and a blowdown mechanism 4, the fish tank 1 includes a front frame 11 and a rear frame 12, and a flexible tank 13 connected between the front frame 11 and the rear frame 12, the flexible tank 13 includes a flexible wall 131 and at least one connecting member 132 detachably connected between the front frame 11 and the rear frame 12, and the flexible wall 131 is provided with a plurality of fixing members 133 connected with the connecting member 132. The flexible wall 131 is drawn by the plurality of connecting members 132 and is connected with the connecting members 132 by the plurality of fixing members 133 to form a groove shape, both ends of the plurality of connecting members 132 are fixedly connected with the front frame 11 and the rear frame 12, respectively, thereby facilitating the migration and the extension of the fish tank 1, and simultaneously, the assembly is convenient, the on-site suspension positioning is simple and convenient, the popularization and the application are convenient, thereby reducing the construction cost,

in this embodiment, each connecting member 132 is a steel wire, the end of each steel wire is fixedly connected to the lifting bolt 111 of the front frame 11 and the rear frame 12, the flexible wall 131 is made of a scraper cloth, and each fixing member 133 is a buckle or a rope. The flexible wall 131 is made of flexible PVC (polyvinyl chloride) knife cloth scraping material, and the material has the advantages of low price, durability, light weight, convenience in installation and the like; the four lifting ring screws 111 are respectively arranged on the front frame 11 and the rear frame 12, then the four steel wire ropes are used for connecting the front frame 11 and the rear frame 12, and the whole flexible groove 13 is tensioned, so that the rigid and flexible connection and combination can be well realized, the construction cost of the whole culture system is reduced, and the sustainable development and green fishery development requirements are met; meanwhile, the steel wire rope also has the advantages of low price, low processing difficulty, easy replacement, no toxicity, no pollution and the like; thereby, a lightweight culture system is realized, a good water body environment is provided for the fry, and high-density culture is realized.

In this embodiment, the front frame 11 is arranged at the water inlet end of the fish tank 1, the oxygen increasing mechanism 3 comprises a fan 31 and an oxygen increasing pipe 32 which are arranged on the front frame 11, one end of the oxygen increasing pipe 32 is communicated with the bottom of the water inlet end of the flexible tank 13, and the other end of the oxygen increasing pipe 32 is communicated with the fan 31. Through the operation of the fan 31, the oxygenation pipe 32 continuously lifts the lower-layer water to be mixed with the surface water, and continuously updates the surface water, so that the unidirectional flow of the water body and the increase of the oxygen content are realized.

In this embodiment, a plurality of aeration pipes 5 are arranged at intervals at the bottom of the inner side of the flexible groove 13, and each aeration pipe 5 is communicated with an aerator 52 through a hose 51. The aeration pipe 5 placed on the side face of the tank body has the functions of increasing the dissolved oxygen content of the water body and slowing down the precipitation of excrement, when the aeration pipe 32 cannot meet the demand of the cultured fish on the dissolved oxygen content of the water body, the aerator 52 aerates the flexible tank 13 for oxygenation, forms the rotation and the up-and-down convection of water flow, brings harmful gas at the bottom to the water surface, makes the dissolved oxygen distribution more uniform, increases the dissolved oxygen of the water body at the bottom, ensures the relative stability of pond water quality, improves the utilization rate of feed, inhibits the growth of harmful microorganisms in water, and improves the water quality condition of culture.

In this embodiment, an impeller 33 is rotatably mounted on the front frame 11, the impeller 33 is connected to a speed reduction motor and drives the impeller 33 to splash water through the speed reduction motor, and the impeller 33 is further connected to a lifting mechanism for adjusting the impeller 33 to ascend and descend so that the impeller 33 is at least partially submerged in the water. The impeller 33 takes a speed reducing motor as power, the impeller 33 is driven to rotate by a chain wheel, and the blade part on the impeller 33 is immersed in water; in the rotating process, the blades hit the water surface to excite water splash, air is pressed into water, and meanwhile powerful acting force is generated, so that the water on the surface layer is pressed into the bottom of the groove, and the kinetic energy of forward flowing of the water body is increased. When the paddle is vertical to the water surface, a force parallel to the water surface is generated to form a directional water flow; when the paddle leaves the water surface, negative pressure is formed on the blade back of the paddle, and the lower layer of water can be lifted; when the blade leaves the water surface, the blade lifts water with a bent blade and water on the blade upwards, and is further thrown into the air under the action of centrifugal force, so that strong water bloom and water dew are excited, and a large amount of air is further dissolved; the impeller 33 rotates to form an air flow, which can also accelerate the dissolution of air. When the water surface of the water body rises, the lifting mechanism adjusts the impeller 33 to rise, and when the water surface of the water body falls, the lifting mechanism adjusts the impeller 33 to fall, so that the lower part of the impeller 33 is always immersed in the water body.

In this embodiment, each floating member 2 includes a plurality of small floats and a plurality of large floats, each small float is disposed on the flexible groove 13, and each large float is disposed on the front frame 11 and the rear frame 12. A plurality of small buoys can be attached to the flexible channel 13 by snap rings or ropes, thereby improving the efficiency of assembly.

In this embodiment, the rear frame 12 is disposed at the water outlet end of the fish tank 1, the sewage draining mechanism 4 includes a sewage suction pump 41 and a sewage collecting pipe 42 disposed on the rear frame 12, one end of the sewage collecting pipe 42 is communicated with the bottom of the water outlet end of the flexible tank 13, and the other end of the sewage collecting pipe 42 is communicated with the sewage suction pump 41. A valve is arranged on a sewage discharge pipe connected with the sewage suction pump 41; through the sewage suction pump 41 and the sewage collection pipe 42, the sewage such as food residue, scraps, excrement and the like in the fish culture tank 1 can be quickly taken away, so that the fish culture tank 1 is purified, and a good water quality condition is provided for the growth of fishes; the mode greatly improves the sewage suction rate of the system on the premise of not improving the power of the sewage suction pump 41; the dirt absorption rate is improved from 20% to 80%, and meanwhile, the effect of keeping good water quality is achieved; the solid matters in the water are precipitated on the sewage collecting tank 6, and a biological film is generated on the surface of the sewage collecting tank, and the biological film can decompose toxic chemical substances such as ammonia nitrogen and the like in the water to purify the water. Meanwhile, the bottom of the sewage collecting pipe 42 is provided with a plurality of sewage suction pumps 41, so that fish excrement and feed residues are removed, and the purpose of primary purification of the water body is fulfilled. Meanwhile, as the water body flows to the purification area, the area carries out further purification treatment on the water body.

In this embodiment, the bottom end of the rear frame 12 is provided with a dirt collecting groove 6 communicated with the flexible groove 13, the bottom of the dirt collecting groove 6 is inclined downwards from the flexible groove 13 to the water outlet end, and the dirt collecting pipe 42 is communicated with the bottom end of the dirt collecting groove 6. The sewage suction rate is low for the existing similar system, and by the arrangement of the sewage collecting groove 6, the sewage suction device can conveniently suck harmful pollutants such as feed residual bait, excrement, ammonia nitrogen, nitrite nitrogen and the like in deep water, and can more conveniently suck sewage through the sewage collecting pipe 42, thereby accelerating the purification of the fish culture groove 1.

In the embodiment, a water baffle 7, a filter plate 8 and a fishing net 9 are arranged in a sewage collecting tank 6, the filter plate 8 is arranged in front of a water inlet of the sewage collecting tank 6, the water baffle 7 is arranged in front of a water outlet end of the sewage collecting tank, the top end of the water baffle 7 is higher than the upper end of a water passing tank formed by the fishing net 9, the low-in and high-out arrangement can prevent most of sewage from entering a purification area through the water outlet end, so that harmful pollutants are precipitated in the sewage collecting tank 6, the precipitation rate of the sewage is effectively improved, the sewage is extracted from a water body through sewage suction pump 41, and finally the water body is sent to a water quality purification area to be metabolized through biological bed technology and filter feeding fish treatment, so that the recycling of aquaculture water in a fish culture tank 1 is realized, the discharge amount of total nitrogen, total phosphorus and pollutants is reduced, the water environment quality is above the standard value of fishery, and the product of the cultured fish reaches the green food standard.

In this embodiment, the rear frame 12 is provided with a filter plate 8 which is positioned in front of the dirt collecting groove 6 and is perpendicular to the length direction of the flexible groove 13, the periphery of the filter plate 8 is fixedly connected with the rear frame 12, and the filter plate 8 comprises a punching plate with a small mesh number and a fishing net (9) with a large mesh number which are spliced along the length direction perpendicular to the flexible groove 13. The filter plate 8 can prevent the fry from escaping the fish culture tank 1, and the mesh number is large, so that the water can conveniently flow in.

In this embodiment, the fish culture tank 1 is equipped with multi-parameter water quality testing probe, velocity of flow detector and automatically controlled host computer, wherein multi-parameter testing probe includes sensors such as temperature that aquaculture needs, humidity, ammonia nitrogen, the PH value, dissolved oxygen volume, multi-parameter testing probe and velocity of flow detector can carry out signal communication with automatically controlled host computer, automatically controlled host computer is through the control strategy who predetermines, the opening of automatic control impeller 33, equipment such as oxygenation fan and soil pick-up pump 41 stops, not only real-time breed production data record and save has been realized, and this farming systems's energy-conserving effect has been improved effectively.

The device adopts the combined water pushing and oxygen increasing equipment of the blower and the waterwheel, and can improve the oxygen content of the water body; by arranging a set of low-power-consumption combined water pushing and oxygen increasing system, the rapid exchange of the upper and lower water layers and the automatic regulation and control of the water flow speed are realized. Compared with the existing products in the market, the oxygen content of the aquaculture water body is higher, the distribution uniformity of oxygen in water is better, the sewage absorption rate is improved, and the operation power consumption is lower.

This device adopts the modularization detachable design, can full parts transportation, disposes functional unit and showy 2, and its flexible groove 13 adopts flexible breed PVC sword to scrape the cloth material, selects the light body material of matter, and wherein PVC sword is scraped the cloth and is connected with the angle steel on front frame 11 and the rear frame 12 respectively through the stainless steel clamp plate for this system has not only reduced the quality of system, has reduceed manufacturing and cost such as transportation widely moreover. The main body has the characteristics of light weight, physical and chemical stability, no pollution and the like, so that the system has the advantages of convenience in assembly, simplicity and convenience in on-site suspension positioning, low construction cost and convenience in popularization and application. The problems of hydrodynamic layout, lightweight design of a fish culture tank 1, a purification area structure, low-power-consumption water pushing and oxygen increasing technology design optimization, optimal matching of water pushing speed, feeding frequency, culture density, intelligent control and the like are deeply researched, so that the unit energy consumption and the construction cost of an IPA system are reduced, the decontamination rate and the intelligent degree are improved, the mechanization and the facility of aquaculture are promoted, the novel pond engineering culture technology and the culture mode are continuously perfected, the reduction of emission of pollutants such as total nitrogen and total phosphorus is realized, the water environment quality is kept above the fishery water quality standard, the aquatic products reach the green food standard, the problems of land resource shortage and environmental pollution are solved, and the economic benefit is improved. The full flow of feeding, dirt sucking and water pushing of the device is full-automatic, manual intervention is not needed, a comprehensive mathematical model of water pushing, oxygen increasing and dirt sucking control is established by taking water quality regulation and control and fish growth quality as targets, optimal breeding parameters and water quality control strategies of different varieties in an IPA mode are established, corresponding breeding technical specifications are formed, and comprehensive optimization of economic benefits and fish meat quality level is realized. The mode proposes that 2% of the water surface of a fishpond is provided with equipment such as water pushing and oxygen increasing equipment and sewage sucking equipment to serve as a high-density culture system, the rest 98% of the water surface is subjected to mechanical transformation, and filter-feeding plants and water pushing equipment are added respectively to serve as purification areas of the mode.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.

Claims

1. The utility model provides a modularization aquaculture device, is including the fish culture groove (1) of locating the aquatic, be equipped with a plurality of float (2) on fish culture groove (1), fish culture groove (1) is connected with oxygenation mechanism (3) and blowdown mechanism (4), its characterized in that, fish culture groove (1) is including preceding frame (11) and after-frame (12) to and connect flexible groove (13) between preceding frame (11) and after-frame (12), flexible groove (13) include flexible wall (131) and at least one with can dismantle the mode connect in connecting piece (132) between preceding frame (11) and after-frame (12), be equipped with a plurality of mounting (133) of being connected with connecting piece (132) on flexible wall (131).

2. A modular aquaculture apparatus according to claim 1, wherein each of said connectors (132) is a steel cable, the ends of each of said steel cables are fixedly connected to eye screws (111) of the front frame (11) and the rear frame (12), said flexible wall (131) is made of a knife cloth, and each of said fasteners (133) is a buckle or a rope.

3. The modular aquaculture device of claim 1, wherein the front frame (11) is arranged at the water inlet end of the fish tank (1), the oxygenation mechanism (3) comprises a fan (31) and an oxygenation pipe (32) which are arranged on the front frame (11), one end of the oxygenation pipe (32) is communicated with the bottom of the water inlet end of the flexible tank (13), and the other end of the oxygenation pipe (32) is communicated with the fan (31).

4. The modular aquaculture device of claim 1, characterized in that the bottom of the inside of said flexible tank (13) is provided with a plurality of aeration pipes (5) arranged at intervals, each of said aeration pipes (5) being in communication with an aerator (52) through a hose (51).

5. A modular aquaculture apparatus according to claim 1, wherein said front frame (11) is rotatably mounted with an impeller (33), said impeller (33) being connected to a gear motor and being driven by the gear motor to splash water, said impeller (33) being further connected to a lifting mechanism for adjusting the raising and lowering of the impeller (33) so that the impeller (33) is at least partially submerged in the body of water.

6. A modular aquaculture apparatus according to claim 1, characterized in that each of said flotation members (2) comprises a plurality of small pontoons, each of said small pontoons being provided on a flexible trough (13), and a plurality of large pontoons, each of said large pontoons being provided on a front frame (11) and a rear frame (12).

7. The modular aquaculture apparatus of any one of claims 1 to 6, wherein the rear frame (12) is arranged at the water outlet end of the fish tank (1), the sewage draining mechanism (4) comprises a sewage suction pump (41) and a sewage collecting pipe (42) which are arranged on the rear frame (12), one end of the sewage collecting pipe (42) is communicated with the bottom of the water outlet end of the flexible tank (13), and the other end of the sewage collecting pipe (42) is communicated with the sewage suction pump (41).

8. The modular aquaculture device of claim 7, wherein the bottom end of the rear frame (12) is provided with a sewage collecting tank (6) communicated with the flexible tank (13), the bottom of the sewage collecting tank (6) is obliquely and downwards arranged from the flexible tank (13) to the water outlet end, and the sewage collecting pipe (42) is communicated with the bottom end of the sewage collecting tank (6).

9. A modular aquaculture apparatus according to claim 8, characterized in that said dirt collection tank (6) is provided with a water baffle (7), a filter plate (8) and a fishing net (9), said filter plate (8) being arranged in front of the water inlet of the dirt collection tank (6), said water baffle (7) being arranged in front of the water outlet of the dirt collection tank (6), the top of said water baffle (7) being higher than the upper end of the water passing tank formed by the fishing net (9).

10. A modular aquaculture apparatus according to claim 9, characterized in that a filter plate (8) is arranged in the rear frame (12) in front of the dirt collecting tank (6) and perpendicular to the length direction of the flexible tank (13), the filter plate (8) is fixedly connected to the rear frame (12) at all four sides, the filter plate (8) comprises a small number of punched plates and a large number of fishing nets (9) spliced together perpendicular to the length direction of the flexible tank (13).