Live fish collecting and conveying device and conveying method

Abstract

The application discloses a live fish collecting and conveying device and a conveying method, and belongs to the field of fish conveying technology. The live fish collecting and conveying device comprises a fish cabin with an outlet, a water inlet mixing unit, a first conveying assembly, a second conveying assembly, a sensor group and a breather valve; and a fish suction pump is arranged at the outlet. When the live fish is collected and conveyed, the speed reducer drives the upper partition plate fixed by the ratchet device to be lowered and run vertically, the controller controls the track trolley to run to the outlet, and the fish is driven to the outlet; when the track trolley reaches the limit, the horizontal partition plate at the outlet continues to drive the fish to the outlet from another direction through the horizontal track; when the horizontal partition plate reaches the limit of the horizontal track, the vertical partition plate runs downward to drive the fish in the fish cabin to the outlet, and the fish suction pump at the outlet cooperates to suck the fish out. The application solves the preservation problem of long-distance and long-time transportation of deep-sea cultured live fish, and solves the problem of high investment cost, and improves the survival rate of ocean fish transportation and the efficiency of loading and unloading fish.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of live fish transportation device, in particular to a live fish collection and transportation device and method. BACKGROUND

[0002] With the increasing demand for marine products, most of the marine products are currently provided by marine fishing, and the near-shore aquaculture also provides a large share, but the near-shore aquaculture area is limited, and the role of deep-sea aquaculture will become increasingly important, and the development potential is also more huge.

[0003] The design of the fish tank is also a factor that needs to be considered in the current global aquaculture fishing boat design, such as the design of the fish tank from the aspects of scale, function, practicability and reliability. As a major power for the development of marine aquaculture, the fish tank is a carrier-class heavy equipment in the field of aquaculture, so the fish tank is like a mobile sea pasture.

[0004] The controllable closed aquaculture environment in the fish tank helps to isolate pathogens in the fish tank, and can improve the survival rate of aquaculture. In addition to the feed storage configuration workshop and the fish processing workshop, the fish tank can also realize the exchange of water in the tank and natural seawater outside the ship at any time, and can increase the aquaculture area by directly enclosing and releasing in the sea with a large net cage around the ship, thereby increasing the aquaculture yield.

[0005] The closed fish tank can also detect data in the tank at any time, and increase the oxygen content of the water in the tank, thereby improving the survival rate of fish transportation. The deep-sea aquaculture fish tank device is mainly used to protect the development of artificial aquaculture fishery resources in the deep sea, but how to ensure that the high-grade fish protein resources in the artificial aquaculture pasture can maintain their freshness during long-distance and long-time transportation, thereby ensuring their economic value, and fundamentally solving the problem of long-distance and long-time live fish transportation preservation, and the problem of high investment cost. At the same time, how to process, preserve and freeze store fish without the need for ship workers, save ship space and refrigerant production energy consumption, and not be affected by weather conditions, is a technical problem that needs to be solved. SUMMARY

[0006] The present application provides a live fish collection and transportation device and method, which can process, preserve and freeze store fish without the need for ship workers, save ship space and refrigerant production energy consumption, detect data in real time, ensure the oxygen content in the fish tank through visual control, detect the ammonia nitrogen content in real time, and increase the oxygen content and diffusion of the water through the lower water outlet device.

[0007] Technical scheme: The live fish collection and transportation device comprises a fish tank with an outlet, a water inlet mixing unit, a first transportation assembly, a second transportation assembly, a sensor group and an air breather valve; a fish suction pump is arranged at the outlet;

[0008] The water inlet mixing unit comprises a Venturi gas-water mixer and a water injection main pipe connected with a plurality of mixing units; the mixing unit comprises a water injection branch pipe, a mixing chamber and a water inlet, and the mixing chamber comprises a waiting area and a mixing area;

[0009] The first conveying assembly comprises a speed reducer, a shaft, a track trolley, an upper partition plate and a lower partition plate mounted on the shaft, and a ratchet device with a buckle; the speed reducer drives the lower partition plate to make a circular motion to drive the fish away through the shaft; the ratchet device fixes the lower partition plate through the buckle; and the track trolley drives the shaft, the speed reducer, the upper partition plate and the lower partition plate to move.

[0010] The second conveying assembly comprises a horizontal driving assembly and a vertical driving assembly, wherein the horizontal driving assembly comprises a horizontal partition plate and a horizontal track; and the vertical driving assembly comprises a vertical partition plate and a vertical track.

[0011] High-pressure nozzles are distributed on the inner wall of the fish tank to spray water flow to clean the wall surface and drive the fish.

[0012] A partition plate with holes is arranged between the waiting area and the mixing area.

[0013] A rotating shaft extending into the mixing area is arranged on the partition plate, and a spiral fan blade with a bearing is arranged on the rotating shaft.

[0014] The water inlet is a spiral multi-port water-oxygen mixing and diffusion water inlet.

[0015] An elevator is installed in the fish tank to facilitate subsequent maintenance and cleaning.

[0016] A separation net is arranged in the mixing area to prevent impurities in the fish tank from entering the water inlet.

[0017] The sensor group comprises a temperature sensor, an oxygen sensor, an ammonia nitrogen sensor and a pressure sensor.

[0018] The live fish collecting and conveying method comprises the following steps:

[0019] (1) After the sterilized water body is mixed with the injected oxygen through the Venturi gas-water mixer, the water body enters the water injection main pipe, the sensor group installed on the tank wall transmits the detected data to the controller to control the water injection main pipe and the air inlet valve to adjust the pressure in the fish tank;

[0020] (2) When discharging and driving the fish, the speed reducer drives the shaft to lower the upper partition plate fixed by the ratchet device and run vertically, the controller controls the track trolley to run to the outlet, and the fish is driven to the outlet; when the track trolley reaches the limit position, the horizontal partition plate at the outlet continues to drive the fish to the outlet from the other direction through the horizontal track; when the horizontal partition plate reaches the limit position of the horizontal track, the vertical partition plate runs downward to drive the fish in the fish tank to the outlet, and the fish is sucked out in cooperation with the fish suction pump at the outlet.

[0021] Working principle: the present application improves the oxygen content and survival rate of fish in the fish tank by the following measures: first, the transport fish tank is monitored in real time, and the oxygen content of the water quality of the aquaculture water is adjusted by adjusting the spiral water-oxygen mixed diffusion inlet at the bottom of the fish tank and the branch pressure valve, the highly dissolved oxygen gas-water mixture is distributed in the fish tank, and the survival rate of the transported fish in the tank is improved. The oxygen content and water flow rate of the outlet of each pipeline are controlled by adjusting the lower water injection main pipe and each branch valve; furthermore, the outlet has a hole gap, which accelerates the instantaneous speed of the water flow to combine the high-concentration oxygen again with the water body, and the high-concentration oxygen-rich water body is diffused to each part of the fish tank through the spiral fan blade with a bearing. At the same time, through the full-tank ammonia nitrogen, oxygen content and water temperature automatic monitoring, the temperature sensor, oxygen sensor, ammonia nitrogen sensor and pressure sensor are arranged in layers on the wall of the live fish transport tank, the dissolved oxygen content of the water in the live fish transport tank is measured through the oxygen sensor, the opening degree of the fresh aquaculture water oxygen injection valve of the venturi oxygen mixer is adjusted, and the oxygen content in the live fish transport tank is adjusted; through the pressure sensor, the number of atmospheric valves on the tank top is opened, the pressure in the tank is adjusted in time, and the survival rate of fish is improved.

[0022] The present application improves the fish tank loading and unloading efficiency by the following measures: first, the reducer drives the shaft to rotate, the partition plate moves downward in a circular motion, and stops when it is vertical, at this time the whole is moved to the outlet by the track trolley, the fish is driven to the outlet, and stops after reaching the limit, the horizontal partition plate also moves to the outlet from the horizontal rail on the wall and stops when it is limited, and finally the fish is driven downward by the vertical partition plate to achieve the purpose of compressing the fish space.

[0023] Advantages: compared with the prior art, the present application has the following advantages:

[0024] (1) The present application fundamentally solves the problem of long-distance and long-time transportation of deep-sea aquaculture live fish, and the problem of high investment cost, and improves the survival rate of ocean fish transportation and the efficiency of loading and unloading fish.

[0025] (2) The present application improves the oxygen diffusion degree of the fish tank, improves the accuracy of the data by real-time detection, and ensures the survival rate of the fish.

[0026] (3) The branch water pipes of the multi-pipeline water inlet of the present application are spiral upward, which has stronger pressure-bearing capacity and more compact structure, and ensures that the speed and oxygen content of the water body flowing out of the water inlet are the same, thereby ensuring the distribution of oxygen in the fish tank.

[0027] (4) The present application uses the structure of the water flow generating kinetic energy to drive the blade to improve the oxygen dispersion degree in the fish tank, and the continuous injection of the high-pressure nozzle installed on the inner wall of the fish tank plays the role of cleaning the fish tank and driving the fish. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the live fish collection and conveying device of the present invention;

[0029] Figure 2 This is a schematic diagram of the mixing unit at the fish tank inlet of the live fish collection and conveying device of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure at the fish compartment outlet of the live fish collection and conveying device of the present invention;

[0031] Figure 4 This is a front view of the ratchet mechanism of the live fish collection and conveying device of the present invention;

[0032] Figure 5 This is a side view of the ratchet mechanism of the live fish collection and conveying device of the present invention. Detailed Implementation

[0033] The live fish collection and transportation device of the present invention includes a fish tank with an outlet 29, a water mixing unit, a first transportation component, a second transportation component, a controller, a sensor group 26, and a vent valve 28; a fish suction pump 20 is provided at the outlet 29.

[0034] The water mixing unit includes a Venturi air-water mixer 13 and a water injection main pipe 22, which is connected to multiple mixing units. The mixing unit includes a water injection pipe 17, a mixing chamber, and a water inlet 9. The mixing chamber includes a waiting area 18 and a mixing area.

[0035] The first transport component includes a reducer 11, a shaft 3, and a track trolley 21. An upper partition 14 and a lower partition 5 are mounted on the shaft 3, as well as a ratchet device 33 with a buckle 32. The reducer 11 drives the lower partition 5 to make circular motion through the shaft 3 to drive the fish away. The ratchet device 33 fixes the lower partition 5 through the buckle 32. The track trolley 21 drives the shaft 3, the reducer 11, the upper partition 14, and the lower partition 5 to move.

[0036] The second transport assembly includes a horizontal drive assembly and a vertical drive assembly. The horizontal drive assembly includes a horizontal partition 23 and a horizontal track 30; the vertical drive assembly includes a vertical partition 25 and a vertical track 31.

[0037] like Figure 1 As shown, oxygen and water are mixed by the Venturi mixer 13 and then delivered into the water injection manifold 22 with multiple pipes via the oxygen injection valve 12. In the fish tank of this invention, the water injection manifold 22 below the fish tank is a spiral water-oxygen mixing and diffusion inlet, which is connected to the Venturi gas-water mixer 13. Water mixed with oxygen prepared by the molecular sieve oxygen generator forms water with sufficient oxygen content, which enters the fish tank. Its structure is conducive to the mixing of oxygen and water.

[0038] likeFigure 1 and 2 As shown in the figures, the fish tank of the present application detects the data of temperature, carbon dioxide, ammonia nitrogen, oxygen and pressure in the water through the sensor group 26 of the inner wall of the fish tank, transmits the data to the first controller 27 above, controls the water injection main pipe 22 and the air valve 28 at the bottom of the fish tank to adjust the internal pressure of the fish tank through the first controller 27; adjusts the internal pressure of the fish tank through the spherical air valve 28 above the fish tank, and the bottom of the water tank with slope in the fish tank is beneficial to the discharge of the sediment of the feed and the sediment of the fish excretion in the fish tank. The water inlet 9 is a spiral multi-port water-oxygen mixed diffusion water inlet.

[0039] As shown in the figures, the fish tank of the present application detects the data of temperature, carbon dioxide, ammonia nitrogen, oxygen and pressure in the water through the sensor group 26 of the inner wall of the fish tank, transmits the data to the first controller 27 above, controls the water injection main pipe 22 and the air valve 28 at the bottom of the fish tank to adjust the internal pressure of the fish tank through the first controller 27; adjusts the internal pressure of the fish tank through the spherical air valve 28 above the fish tank, and the bottom of the water tank with slope in the fish tank is beneficial to the discharge of the sediment of the feed and the sediment of the fish excretion in the fish tank. The water inlet 9 is a spiral multi-port water-oxygen mixed diffusion water inlet. Figure 1

[0040] As shown in the figures, the fish tank of the present application detects the data of temperature, carbon dioxide, ammonia nitrogen, oxygen and pressure in the water through the sensor group 26 of the inner wall of the fish tank, transmits the data to the first controller 27 above, controls the water injection main pipe 22 and the air valve 28 at the bottom of the fish tank to adjust the internal pressure of the fish tank through the first controller 27; adjusts the internal pressure of the fish tank through the spherical air valve 28 above the fish tank, and the bottom of the water tank with slope in the fish tank is beneficial to the discharge of the sediment of the feed and the sediment of the fish excretion in the fish tank. The water inlet 9 is a spiral multi-port water-oxygen mixed diffusion water inlet. Figure 1 , Figure 3 Figure 4 As shown in the figures, the fish tank of the present application detects the data of temperature, carbon dioxide, ammonia nitrogen, oxygen and pressure in the water through the sensor group 26 of the inner wall of the fish tank, transmits the data to the first controller 27 above, controls the water injection main pipe 22 and the air valve 28 at the bottom of the fish tank to adjust the internal pressure of the fish tank through the first controller 27; adjusts the internal pressure of the fish tank through the spherical air valve 28 above the fish tank, and the bottom of the water tank with slope in the fish tank is beneficial to the discharge of the sediment of the feed and the sediment of the fish excretion in the fish tank. The water inlet 9 is a spiral multi-port water-oxygen mixed diffusion water inlet.

[0041] As shown in the figures, the fish tank of the present application detects the data of temperature, carbon dioxide, ammonia nitrogen, oxygen and pressure in the water through the sensor group 26 of the inner wall of the fish tank, transmits the data to the first controller 27 above, controls the water injection main pipe 22 and the air valve 28 at the bottom of the fish tank to adjust the internal pressure of the fish tank through the first controller 27; adjusts the internal pressure of the fish tank through the spherical air valve 28 above the fish tank, and the bottom of the water tank with slope in the fish tank is beneficial to the discharge of the sediment of the feed and the sediment of the fish excretion in the fish tank. The water inlet 9 is a spiral multi-port water-oxygen mixed diffusion water inlet. Figure 2 ​​​As shown, in the water inlet mixing unit, when water from the water inlet pipe 17 with fan blades enters from below, it first enters the waiting area 18. When the water flow fills the mixing chamber, the water flow enters the orifice 8. A partition plate with orifice 8 is provided between the waiting area 18 and the mixing area. When the total water inlet volume remains constant, the outlet area decreases, and the water flow velocity increases. When the water flow velocity increases, the Venturi principle is used to drive the oxygen released in the water to redissolve in the water. The water flow impacts the rotating spiral fan blade 4 with bearing 19. The bearing 19 and the spiral fan blade 4 are mounted on the rotating shaft of the partition plate. After passing through the partition net 7, the water enters the fish tank 1, so that the oxygen-rich water flow is dispersed to various positions in the fish tank 1. The partition net 7 prevents impurities in the fish tank 1 from falling into the water inlet and clogging the orifice 8, and at the same time prevents the fish inside the fish tank 1 from being injured by the spiral fan blade 4 below. The holes 8 are arranged in a circular array to ensure that the impact force on the spiral fan blades 4 is uniform and simultaneous when the water flows upward; the bearing 19 is mounted on the rotating shaft above the holes 8, and the bearing 8 is a ball bearing. The holes 24 on the wall are used for water exchange and pressure adjustment in the fish tank.

[0042] like Figure 1 As shown, an elevator 35 is installed inside the fish hold to facilitate subsequent replacement of the anti-corrosion zinc block 37, maintenance, and cleaning.

[0043] like Figure 4 As shown, when the lower partition 5 is placed horizontally, the ratchet device 33 installed on the inner side of the shaft 3 is located on the shaft 3. When the shaft 3 stops rotating, the ratchet reverses and is fixed in position by the latch 32. When the lower partition 5 needs to move downward, the latch 32 lifts up to avoid obstructing the reverse rotation of the ratchet device 33.

[0044] The sensor group 26 of the present invention includes a temperature sensor, an oxygen sensor, an ammonia nitrogen sensor, and a pressure sensor. Based on the measured dissolved oxygen content in the water inside the live fish transport tank, the opening degree of the oxygen supply valve of the fresh hydroturi mixer is adjusted to regulate the oxygen content in the water inside the live fish transport tank; the ammonia nitrogen sensor senses the ammonia nitrogen content in the water and adjusts the power of the outlet and the sewage pump; the pressure sensor controls the number of atmospheric vent valves opened on the top of the tank to regulate the pressure inside the fish tank in a timely manner.

[0045] During unloading and fish removal, the reducer 11 drives the shaft 3 to lower the lower partition 5, which was originally fixed in a horizontal position by the ratchet device 33. Because the right side has an arc-shaped structure to ensure seamless movement, when the lower partition 5 reaches a vertical position, the first controller controls the track trolley to continue moving towards the exit, driving the fish towards the exit. When the track trolley reaches its limit, the horizontal partition 23 at the exit continues to move towards the exit from another direction via the horizontal track 30, driving the fish. When it reaches the limit of the horizontal track 30, the vertical partition 25 moves downwards, ultimately driving the fish in the fish hold towards the exit, where it combines with the fish suction pump 20 at the exit to suck out all the fish.

Claims

1. A method for collecting and transporting live fish, characterized in that: The live fish collection and conveying device is used, which includes a fish tank with an outlet (29), a water mixing unit, a first transport component, a second transport component, a sensor group (26), and a vent valve (28); a fish suction pump (20) is provided at the outlet (29); The water inlet mixing unit includes a Venturi air-water mixer (13) and a water injection manifold (22), and the water injection manifold (22) is connected to multiple mixing units; the mixing unit includes a water injection manifold (17), a mixing chamber and a water inlet (9), and the mixing chamber includes a waiting area (18) and a mixing area; The first transport component includes a reducer (11), a shaft (3), and a track trolley (21). An upper partition (14) and a lower partition (5) are mounted on the shaft (3), as well as a ratchet device (33) with a buckle (32). The reducer (11) drives the lower partition (5) to make circular motion through the shaft (3) to drive the fish away. The ratchet device (33) fixes the lower partition (5) through the buckle (32). The track trolley (21) drives the shaft (3), reducer (11), upper partition (14), and lower partition (5) to move. The second transport assembly includes a horizontal drive assembly and a vertical drive assembly. The horizontal drive assembly includes a horizontal partition (23) and a horizontal track (30). The vertical drive assembly includes a vertical partition (25) and a vertical track (31). A partition plate with holes (8) is provided between the waiting area (18) and the mixing area; The isolation plate is provided with a rotating shaft extending into the mixing zone, and the rotating shaft is provided with spiral fan blades (4) with bearings (19); The method for collecting and transporting live fish includes the following steps: (1) After sterilization, the water is mixed with the injected oxygen through the Venturi air-water mixer (13) and then enters the water injection manifold (22). The sensor group installed on the bulkhead transmits the detected data to the controller, which then controls the water injection manifold (22) and the vent valve (28) to regulate the pressure inside the fish tank. (2) When unloading and driving fish, the reducer (11) drives the shaft (3) to lower the upper partition (5) fixed by the ratchet device (33) and move it to the vertical position. The controller controls the track trolley (21) to move towards the outlet and drive the fish towards the outlet. When the track trolley (21) reaches the limit, the horizontal partition (23) at the outlet continues to drive the fish towards the outlet from another direction through the horizontal track (30). When the horizontal partition (23) reaches the limit of the horizontal track (30), the vertical partition (25) moves downward to drive the fish in the fish tank towards the outlet and cooperates with the fish suction pump (20) at the outlet to suck the fish out.

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