Non-invasive fish transport system and method

Abstract

This invention belongs to the field of fish transport technology and discloses a non-destructive fish transport system and method. The non-destructive fish transport system includes a first fish transport component, a second fish transport component, and a fish suction and discharge drive component. During the fish suction and discharge processes, the fish always flows within the first and second transport components and will not come into contact with the fish suction and discharge drive component, thereby avoiding mechanical damage to the fish caused by the operation of the pumping component. On the other hand, the fish suction and discharge processes are driven by water flow rather than vacuum suction, which will not cause deformation of the flow channels of the first and second transport components, thereby avoiding injury to the fish from collision with the inner walls of the first or second transport components. At the same time, water flow drive has good pressure transmission effect, which is conducive to increasing the transport distance and transport height.

Description

Technical Field

[0001] This invention relates to the field of fish transport technology, and in particular to a non-destructive fish transport system and method. Background Technology

[0002] In fishing operations, there are usually the following methods of catching fish: using fishing nets to scoop up the fish, or using fish suction pumps to suck up the fish.

[0003] Currently, the main principles of fish suction pumps include impeller-type fish suction pumps, vacuum-type fish suction pumps, and jet-type fish suction pumps. Impeller-type fish suction pumps are similar to centrifugal water pumps; the impeller rotates, creating a vacuum at the pump inlet to draw in fish and water. The impeller causes the fish and water to rotate, and the water leaves the impeller along the direction of centrifugal force and is discharged outside the pump. Vacuum-type fish suction pumps create a vacuum inside the fish tank, drawing fish into the tank. After adding water or air to the tank, the fish and water are discharged through a drain pipe.

[0004] Among them, the impeller of the impeller-type fish suction pump is very likely to damage the fish when it rotates; the vacuum fish suction pump has a strong suction force, and the flow channel shape changes greatly when the fish enters and exits the fish tank, causing the fish to hit the pipes or the inner wall of the tank and get injured. Summary of the Invention

[0005] One objective of this invention is to provide a fish transport system that can continuously transport fish without damaging them, thereby increasing the transport distance and height.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A non-destructive fish transport system includes:

[0008] The first fish conveying assembly includes a first fish inlet pipe, a first fish storage assembly, and a first fish outlet pipe. The first fish inlet pipe is provided with a first fish inlet valve, and the first fish outlet pipe is provided with a first fish outlet valve. The inlet end of the first fish storage assembly is connected to the first fish inlet pipe, and the outlet end of the first fish storage assembly is connected to the first fish outlet pipe.

[0009] The second fish conveying assembly includes a second fish inlet pipe, a second fish storage assembly, and a second fish outlet pipe. The second fish inlet pipe is equipped with a second fish inlet valve, and the second fish outlet pipe is equipped with a second fish outlet valve. The inlet end of the second fish storage assembly is connected to the second fish inlet pipe, and the outlet end of the second fish storage assembly is connected to the second fish outlet pipe.

[0010] The fish suction and discharge driving assembly includes a first suction pipe, a first flushing pipe, a second suction pipe, a second flushing pipe, and a pumping assembly. The inlet end of the first suction pipe is connected to the first fish outlet pipe and is located upstream of the first fish outlet valve. The inlet end of the second suction pipe is connected to the second fish outlet pipe and is located upstream of the second fish outlet valve. Both the inlet ends of the first and second suction pipes have fish-blocking and water-passing components. The first suction pipe is equipped with a first suction valve, and the second suction pipe is equipped with a second suction valve. Both the outlet ends of the first and second suction pipes are connected to the pumping assembly. Both the inlet ends of the first and second flushing pipes are connected to the pumping assembly. The outlet end of the first flushing pipe is connected to the first fish inlet pipe, and the outlet end of the second flushing pipe is connected to the second fish inlet pipe. The first flushing pipe is equipped with a first flushing valve, and the second flushing pipe is equipped with a second flushing valve.

[0011] As an optional embodiment of the fish non-destructive transport system, the fish non-destructive transport system further includes a fish inlet tee, which includes a first connector, a second connector, and a third connector that are interconnected. The first fish inlet pipe is connected to the first connector, the second fish inlet pipe is connected to the second connector, the outlet end of the first flushing pipe is located downstream of the first fish inlet valve, and the outlet end of the second flushing pipe is located downstream of the second fish inlet valve.

[0012] As an optional embodiment of the fish non-destructive transport system, the pumping assembly includes a first pump pipe, a second pump pipe, a first transport pump, a second transport pump, a first connecting pipe, and a second connecting pipe. The first transport pump is disposed on the first pump pipe, the second transport pump is disposed on the second pump pipe, one end of the first connecting pipe is connected to the first pump pipe upstream of the first transport pump, the other end of the first connecting pipe is connected to the second pump pipe upstream of the second transport pump, one end of the second connecting pipe is connected to the first pump pipe downstream of the first transport pump, and the other end of the second connecting pipe is connected to the second pump pipe downstream of the second transport pump.

[0013] The first pumping pipe is connected to the first pump pipe upstream of the first delivery pump, the first flushing pipe is connected to the first pump pipe downstream of the first delivery pump, the second pumping pipe is connected to the second pump pipe upstream of the second delivery pump, and the second flushing pipe is connected to the second pump pipe downstream of the second delivery pump.

[0014] As an optional embodiment of the aforementioned non-destructive fish transport system, the first fish storage component includes a first spiral tube that extends spirally from its upper end to its lower end, thereby forming multiple turns of the first spiral segment arranged from top to bottom. The upper end of the first spiral tube is connected to the first fish inlet pipe, and the lower end of the first spiral tube is connected to the first fish outlet pipe, and / or...

[0015] The second fish storage component includes a second spiral tube that extends spirally from its upper end to its lower end, thereby forming multiple spiral segments arranged from top to bottom. The upper end of the second spiral tube is connected to the second fish inlet tube, and the lower end of the second spiral tube is connected to the second fish outlet tube.

[0016] As an optional embodiment of the fish non-destructive transport system, the fish suction and discharge driving assembly further includes multiple first branch pipes. One end of each first branch pipe is connected to the corresponding first spiral section, and the other end is connected to the inlet end of the pumping assembly. The inlet end of each first branch pipe is provided with a first grid, and each first branch pipe is provided with a first branch valve. The fish suction and discharge driving assembly further includes multiple second branch pipes. One end of each second branch pipe is connected to the corresponding second spiral section, and the other end is connected to the inlet end of the pumping assembly. The inlet end of each second branch pipe is provided with a second grid, and each second branch pipe is provided with a second branch valve.

[0017] As an optional embodiment of the aforementioned non-destructive fish transport system, the first fish storage assembly further includes a first check pipe and a first flap-type check grid. One end of the first check pipe is connected to the first fish inlet pipe, and the other end is connected to the upper end of the first spiral pipe. The first flap-type check grid is disposed inside the first check pipe, and / or...

[0018] The second fish storage assembly also includes a second check pipe and a second flap-type check grid. One end of the second check pipe is connected to the second fish inlet pipe, and the other end is connected to the upper end of the second spiral pipe. The second flap-type check grid is disposed inside the second check pipe.

[0019] As an optional embodiment of the fish non-destructive transport system, the inner diameters of the first fish inlet pipe, the first check pipe, the first spiral pipe, and the first fish outlet pipe are all the same, and the inner diameters of the second fish inlet pipe, the second check pipe, the second spiral pipe, and the second fish outlet pipe are all the same.

[0020] As an optional embodiment of the fish non-destructive transport system, the inner walls of the first fish inlet pipe, the first check pipe, the first spiral pipe, and the first fish outlet pipe are all provided with a first flexible buffer layer, and the inner walls of the second fish inlet pipe, the second check pipe, the second spiral pipe, and the second fish outlet pipe are all provided with a second flexible buffer layer.

[0021] Another objective of this invention is to provide a method for non-destructive fish transport that enables continuous fish transport without damaging the fish, with high transport efficiency.

[0022] To achieve this objective, the present invention adopts the following technical solution:

[0023] A method for non-destructive fish transport, implemented based on any of the above-described non-destructive fish transport systems, includes the following steps:

[0024] S1. The first fish inlet valve and the second fish outlet valve are open, the second fish inlet valve and the first fish outlet valve are closed, the second water pumping valve is closed, the first water pumping valve is open, the first flushing valve is closed, and the second flushing valve is open.

[0025] S2. The pumping component is started, causing the first fish storage component to store fish and the second fish storage component to discharge fish, and the pumping component is stopped.

[0026] S3. The first fish inlet valve and the second fish outlet valve are closed, the second fish inlet valve and the first fish outlet valve are open, the first water pumping valve is closed, the second water pumping valve is open, the second flushing valve is closed, and the first flushing valve is open.

[0027] S4. The pumping component is started, causing the second fish storage component to store fish and the first fish storage component to discharge fish, and the pumping component is stopped.

[0028] S5, repeat steps S1-S4.

[0029] As an optional embodiment of the fish non-destructive transport method, the fish non-destructive transport system further includes a fish inlet tee, which includes a first connector, a second connector, and a third connector that are interconnected. The first fish inlet pipe is connected to the first connector, the second fish inlet pipe is connected to the second connector, the outlet end of the first flushing pipe is located downstream of the first fish inlet valve, and the outlet end of the second flushing pipe is located downstream of the second fish inlet valve.

[0030] The method for non-destructive transport of fish, after step S2 and before step S3, further includes the following steps:

[0031] S6. The second fish outlet valve and the first fish outlet valve are closed, the second fish inlet valve and the first fish inlet valve are open, the second water suction valve is open, the first water suction valve is closed, the second flushing valve is closed, and the first flushing valve is open.

[0032] S7. The pumping assembly is started, allowing the fish at the first fish inlet valve to enter the second fish storage assembly, and the pumping assembly is stopped.

[0033] The method for non-destructive transport of fish, after step S4 and before step S1, further includes the following steps:

[0034] S8. The second fish outlet valve and the first fish outlet valve are closed, the second fish inlet valve and the first fish inlet valve are open, the second water pumping valve is closed, the first water pumping valve is open, the first flushing valve is closed, and the second flushing valve is open.

[0035] S9. The pumping component is started, allowing the fish at the second fish inlet valve to enter the first fish storage component, and the pumping component is stopped.

[0036] Beneficial effects:

[0037] The fish transport system and method provided by this invention involve a first fish transport component and a second fish transport component alternately sucking in fish, with alternating fish discharge occurring during this process. Specifically, the first fish transport component sucks in fish while the second fish transport component discharges fish, and vice versa, thus achieving continuous fish transport. Furthermore, during both the suction and discharge processes, the fish remain within the first and second transport components, avoiding contact with the fish suction / discharge drive components, thereby preventing mechanical damage to the fish caused by the operation of the pumping components. On the other hand, both the suction and discharge processes are driven by water flow, rather than vacuum suction, preventing deformation of the flow channels in the first and second transport components. This avoids injury to the fish from collisions with the inner walls of either component. Simultaneously, the water flow drive provides excellent pressure transmission, which is beneficial for increasing the transport distance and height. Attached Figure Description

[0038] Figure 1 This is a top view of the fish non-destructive transport system provided in an embodiment of the present invention;

[0039] Figure 2 This is a front view of the fish non-destructive transport system provided in an embodiment of the present invention;

[0040] Figure 3 yes Figure 1 A view of the non-destructive fish transport system in the image;

[0041] Figure 4 This is a schematic diagram of the fish non-destructive transport system provided in this embodiment of the invention when the first fish transport component sucks in fish and the second fish transport component discharges fish;

[0042] Figure 5 This is a schematic diagram of the fish non-destructive transport system provided in this embodiment of the invention during the rinsing of the first fish inlet valve;

[0043] Figure 6This is a schematic diagram of the fish non-destructive transport system provided in this embodiment of the invention when the first fish conveying component discharges fish and the second fish conveying component sucks in fish;

[0044] Figure 7 This is a schematic diagram of the fish non-destructive transport system provided in this embodiment of the invention during the flushing of the second fish inlet valve.

[0045] In the picture:

[0046] 100. First fishpond; 101. Fish-driving equipment; 200. Second fishpond;

[0047] 1. Fish suction pipe; 2. Fish inlet tee; 3. First fish inlet valve; 4. First fish inlet pipe; 5. First check pipe; 6. First flap check bar; 7. First spiral pipe; 8. First fish outlet pipe; 9. First bar sleeve; 10. First fish outlet valve; 11. Fish outlet tee; 12. Fish discharge pipe; 13. First water suction valve; 14. First branch valve; 17. First water suction pipe; 18. First branch pipe; 21. First pump pipe; 22. First transfer pump; 23. First valve; 24. First check valve; 25. First flushing valve; 26. First flushing valve 27. Second fish inlet valve; 28. Second fish inlet pipe; 29. ​​Second check pipe; 30. Second flap check bar; 31. Second spiral pipe; 32. Second fish outlet pipe; 33. Second bar sleeve; 34. Second fish outlet valve; 35. Second pumping valve; 36. Second branch valve; 39. Second pumping pipe; 40. Second branch pipe; 43. Second pump pipe; 44. Second transfer pump; 45. Second valve; 46. Second check valve; 47. Second flushing valve; 48. Second flushing pipe; 49. First connecting pipe; 50. Second connecting pipe. Detailed Implementation

[0048] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0049] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0052] This embodiment provides a non-destructive fish transport system, such as Figures 1-3 As shown, Figure 1 A top view of a non-destructive fish transport system. Figure 2 This is a front view of a non-destructive fish transport system. Figure 3 This is an AA view of a fish non-destructive transport system. The fish non-destructive transport system includes a first fish conveying assembly, a second fish conveying assembly, and a fish suction and discharge drive assembly.

[0053] like Figure 1 As shown, the first fish conveying assembly includes a first fish inlet pipe 4, a first fish storage assembly, and a first fish outlet pipe 8. The first fish inlet pipe 4 is equipped with a first fish inlet valve 3, and the first fish outlet pipe 8 is equipped with a first fish outlet valve 10. The inlet end of the first fish storage assembly is connected to the first fish inlet pipe 4, and the outlet end of the first fish storage assembly is connected to the first fish outlet pipe 8. The second fish conveying assembly includes a second fish inlet pipe 28, a second fish storage assembly, and a second fish outlet pipe 32. The second fish inlet pipe 28 is equipped with a second fish inlet valve 27, and the second fish outlet pipe 32 is equipped with a second fish outlet valve 34. The inlet end of the second fish storage assembly is connected to the second fish inlet pipe 28, and the outlet end of the second fish storage assembly is connected to the second fish outlet pipe 32. In this embodiment, both the first fish inlet valve 3 and the second fish inlet valve 27 are remote-controlled gate valves, and both the first fish outlet valve 10 and the second fish outlet valve 34 are remote-controlled gate valves.

[0054] like Figure 1As shown, the fish suction and discharge drive assembly includes a first suction pipe 17, a first flushing pipe 26, a second suction pipe 39, a second flushing pipe 48, and a pumping assembly. The inlet end of the first suction pipe 17 is connected to the first fish outlet pipe 8 and is located upstream of the first fish outlet valve 10. The inlet end of the second suction pipe 39 is connected to the second fish outlet pipe 32 and is located upstream of the second fish outlet valve 34. Both the inlet ends of the first suction pipe 17 and the second suction pipe 39 have fish-blocking water passage components. The first suction pipe 17 is equipped with a first suction... Water valve 13 is provided, and a second water-drawing valve 35 is provided on the second water-drawing pipe 39. The outlet ends of the first water-drawing pipe 17 and the second water-drawing pipe 39 are both connected to the pumping assembly. The inlet ends of the first flushing pipe 26 and the second flushing pipe 48 are both connected to the pumping assembly. The outlet end of the first flushing pipe 26 is connected to the first fish inlet pipe 4, and the outlet end of the second flushing pipe 48 is connected to the second fish inlet pipe 28. A first flushing valve 25 is provided on the first flushing pipe 26, and a second flushing valve 47 is provided on the second flushing pipe 48. In this embodiment, both the first flushing valve 25 and the second flushing valve 47 are remote-controlled butterfly valves. Both the first water-drawing valve 13 and the second water-drawing valve 35 are remote-controlled valves.

[0055] When the fish non-destructive transport system provided in this embodiment is running, taking the transport of fish from the first fishpond 100 to the second fishpond 200 as an example... Figure 4 This is a schematic diagram of a fish non-destructive transport system during the process of the first fish conveying component sucking in fish and the second fish conveying component discharging fish. The arrows in the diagram indicate the flow direction. Specifically, the first fish inlet valve 3 and the second fish outlet valve 34 are open, the second fish inlet valve 27 and the first fish outlet valve 10 are closed, the second water suction valve 35 is closed, the first water suction valve 13 is open, the first flushing valve 25 is closed, and the second flushing valve 47 is open. The pumping component starts to suck fish water from the first fish pond 100 through the first fish inlet pipe 4. The fish water enters through the first fish inlet valve 3. Inside the first fish storage component, the fish remain inside due to the obstruction of the first fish outlet valve 10 and the fish-blocking water passage component. The water after the fish are separated continues to enter the pumping component after passing through the first water pumping pipe 17. After being pressurized by the pumping component, the water passes through the second flushing valve 47 and the second flushing pipe 48 and enters the second fish storage component. The water then pushes the fish in the second fish storage component into the second fish pond 200 through the second fish outlet pipe 32, thus completing the process of fish suction and storage by the first fish conveying component and the process of fish discharge to the second fish pond 200 by the second fish conveying component.

[0056] Figure 6This is a schematic diagram of a fish non-destructive transport system during the operation of the first fish conveying component discharging fish and the second fish conveying component sucking fish in. The arrows in the diagram indicate the flow direction. The first fish inlet valve 3 and the second fish outlet valve 34 are closed, the second fish inlet valve 27 and the first fish outlet valve 10 are open, the first water suction valve 13 is closed, the second water suction valve 35 is open, the second flushing valve 47 is closed, the first flushing valve 25 is open, the pumping component is operating, and the system draws fish water from the first fish pond 100 into the second fish inlet pipe 28. The fish water passes through the second fish inlet valve 27 and enters the second fish storage component, where it is controlled by the second fish outlet valve. The fish are blocked by the fish valve 34 and the fish-blocking water-passing component, so that the fish remain in the second fish storage component. The water after the fish are separated continues to enter the pumping component after passing through the second water-drawing valve 35 and the second water-drawing pipe 39. After being pressurized by the pumping component, the water passes through the first flushing valve 25 and the first flushing pipe 26 and enters the first fish inlet pipe 4. The pressurized water discharges the fish and water in the first fish storage component. The discharged fish and water enter the second fish pond 200 after passing through the first fish outlet valve 10, thus completing the process of fish suction and storage of the second fish conveying component and the process of fish discharge of the first fish conveying component to the second fish pond 200.

[0057] The fish transport system provided in this embodiment uses a first and a second fish transport component that alternately sucks in fish, accompanied by alternating fish discharge. That is, the first fish transport component sucks in fish while the second fish transport component discharges fish, and vice versa, thus achieving continuous fish transport. Furthermore, during both the suction and discharge processes, the fish remain within the first and second transport components, avoiding contact with the suction / discharge drive components, thereby preventing mechanical damage to the fish from the operation of the pumping components. On the other hand, both the suction and discharge processes are driven by water flow, rather than vacuum suction, preventing deformation of the flow channels in the first and second transport components. This avoids injury from collisions between the fish and the inner walls of either component. Simultaneously, the water flow drive provides excellent pressure transmission, which is beneficial for increasing the transport distance and height.

[0058] like Figures 1-3 As shown, in this embodiment, the fish-blocking and water-passing component is a grid sleeve. The first fish outlet pipe 8 and the second fish outlet pipe 32, both with a diameter of DN400, are fixed with grid sleeves. The fish-blocking and water-passing component on the first fish outlet pipe 8 is the first grid sleeve 9, and the fish-blocking and water-passing component on the second fish outlet pipe 32 is the second grid sleeve 33. The first grid sleeve 9 and the second grid sleeve 33 are DN300 pipe sleeves, which can effectively prevent fish from entering the first water pumping pipe 17 and the second water pumping pipe 39, and ensure that the diameter of the first fish conveying component or the second fish conveying component is consistent from the inlet to the outlet.

[0059] Optionally, the fish non-destructive transport system further includes a fish inlet tee 2, which includes a first connector, a second connector, and a third connector that are interconnected. A first fish inlet pipe 4 is connected to the first connector, a second fish inlet pipe 28 is connected to the second connector, the outlet end of the first flushing pipe 26 is located downstream of the first fish inlet valve 3, and the outlet end of the second flushing pipe 48 is located downstream of the second fish inlet valve 27. In this embodiment, the fish non-destructive transport system also includes a fish suction pipe 1, one end of which is connected to the third connector, and the other end extends into the fish pond, such as the first fish pond 100. The first fish pond 100 is equipped with a fish-driving device 101 to drive the fish towards the inlet end of the fish suction pipe 1, thereby facilitating the suction of the fish into the fish suction pipe 1. The specific structure of the fish-driving device 101 is not limited; exemplarily, it can be a fish-driving board or a fish-driving net.

[0060] Specifically, such as Figure 5 As shown, after the first fish conveying component completes the fish suction and storage, and the second fish conveying component completes the fish discharge to the second fish pond 200, the second fish outlet valve 34 and the first fish outlet valve 10 are closed, the second fish inlet valve 27 and the first fish inlet valve 3 are opened, the second water pumping valve 35 is opened, the first water pumping valve 13 is closed, the second flushing valve 47 is closed, the first flushing valve 25 is opened, and the pumping component is started, so that the fish at the first fish inlet valve 3 enter the second fish storage component, thereby avoiding the first fish inlet valve 3 being blocked by fish that may remain at the first fish inlet valve 3 and thus unable to open and close freely.

[0061] Similarly, such as Figure 7 As shown, after the second fish conveying component completes the fish suction and storage and the first fish conveying component discharges fish into the second fish pond 200, the second fish outlet valve 34 and the first fish outlet valve 10 are closed, the second fish inlet valve 27 and the first fish inlet valve 3 are opened, the second water pumping valve 35 is closed, the first water pumping valve 13 is opened, the first flushing valve 25 is closed, and the second flushing valve 47 is opened; the pumping component is started, so that the fish at the second fish inlet valve 27 enter the first fish storage component, thereby avoiding the second fish inlet valve 27 being blocked by fish that may remain at the second fish inlet valve 27 and thus unable to open and close freely.

[0062] like Figure 1 As shown, in this embodiment, the fish non-destructive transport system also includes a fish outlet tee 11 and a fish discharge pipe 12. The three connectors of the fish outlet tee 11 are respectively connected to the first fish outlet pipe 8, the second fish outlet pipe 32 and the fish discharge pipe 12. The fish discharge pipe 12 extends into the fish pond, for example, in the second fish pond 200.

[0063] To create a non-destructive driving force for sucking and releasing fish, such as Figure 1As shown, in this embodiment, the pumping assembly includes a first pump pipe 21, a second pump pipe 43, a first delivery pump 22, a second delivery pump 44, a first connecting pipe 49, and a second connecting pipe 50. The first delivery pump 22 is disposed on the first pump pipe 21, and the second delivery pump 44 is disposed on the second pump pipe 43. One end of the first connecting pipe 49 is connected to the first pump pipe 21 upstream of the first delivery pump 22, and the other end of the first connecting pipe 49 is connected to the second pump pipe 43 upstream of the second delivery pump 44. One end of the second connecting pipe 50 is connected to the first pump pipe 21 downstream of the first delivery pump 22, and the other end of the second connecting pipe 50 is connected to the second pump pipe 43 downstream of the second delivery pump 44. A first suction pipe 17 is connected to the first pump pipe 21 upstream of the first delivery pump 22, a first flushing pipe 26 is connected to the first pump pipe 21 downstream of the first delivery pump 22, a second suction pipe 39 is connected to the second pump pipe 43 upstream of the second delivery pump 44, and a second flushing pipe 48 is connected to the second pump pipe 43 downstream of the second delivery pump 44. In this embodiment, a first check valve 24 is provided on the first pump pipe 21 and a second check valve 46 is provided on the second pump pipe 43, thereby limiting the direction of water flow when the first delivery pump 22 and the second delivery pump 44 are stopped.

[0064] The first delivery pump 22 and the second delivery pump 44 can serve as backups for each other, thereby improving system stability. Furthermore, first valves 23 are respectively provided upstream and downstream of the first delivery pump 22. Both first valves 23 are opened when the first delivery pump 22 is in use, and closed when the first delivery pump 22 is stopped. Second valves 45 are respectively provided upstream and downstream of the second delivery pump 44. Both second valves 45 are opened when the second delivery pump 44 is in use, and closed when the second delivery pump 44 is stopped.

[0065] In this embodiment, both the first transfer pump 22 and the second transfer pump 44 are self-priming centrifugal pumps. Compared with vacuum fish suction pumps, self-priming centrifugal pumps have a larger discharge head, allowing them to transport fish to higher and farther locations. In this embodiment, the self-priming centrifugal pump is a variable frequency centrifugal pump with a self-priming device, a displacement of approximately 150–300 m³ / h, and a head as high as 50 m. This allows it to transport fish to fishponds 50 meters higher than the pump, or to fishponds 2000 meters away horizontally. Both the first transfer pump 22 and the second transfer pump 44 have their speed controlled by frequency conversion, thus allowing the suction and discharge rates to be adjusted according to the species and size of the fish.

[0066] like Figure 4As shown, when the first fish conveying component is sucking and storing fish and the second fish conveying component is discharging fish into the second fish pond 200, the water flowing out from the first fish storage component passes sequentially through the first pumping pipe 17, the first pump pipe 21, the second connecting pipe 50, a part of the second pump pipe 43, and the second flushing pipe 48 before entering the second fish inlet pipe 28. Then, it enters the second fish storage component through the second fish inlet pipe 28 and presses the fish in the second fish storage component, causing the fish to be discharged from the second fish outlet pipe 32.

[0067] like Figure 6 As shown, when the second fish conveying component is sucking and storing fish and the first fish conveying component is discharging fish into the second fish pond 200, the water flowing out from the second fish storage component passes through the second pumping pipe 39, a part of the second pump pipe 43, the first connecting pipe 49, the first pump pipe 21 and the first flushing pipe 26 in sequence before entering the first fish inlet pipe 4. Then, it enters the first fish storage component through the first fish inlet pipe 4 and presses the fish in the first fish storage component, so that the fish are discharged from the first fish outlet pipe 8.

[0068] like Figure 2 As shown, optionally, the first fish storage assembly includes a first spiral tube 7, which extends spirally from its upper end to its lower end, thereby forming multiple spiral sections arranged from top to bottom. The upper end of the first spiral tube 7 is connected to the first fish inlet pipe 4, and the lower end of the first spiral tube 7 is connected to the first fish outlet pipe 8. This prevents fish from flowing back out and also reduces the overall size of the system. Furthermore, the inner diameter of the first spiral tube 7 is uniform and its surface is smooth, facilitating the smooth intake or discharge of fish to empty the first spiral tube 7. In this embodiment, the diameter of the first spiral tube 7 is approximately 2 μm, and the number of spiral turns reaches 4 or more.

[0069] like Figure 3 As shown, similar to the first fish storage assembly, the second fish storage assembly includes a second spiral tube 31. The second spiral tube 31 extends spirally from its upper end to its lower end, forming multiple spiral sections arranged from top to bottom. The upper end of the second spiral tube 31 is connected to the second fish inlet pipe 28, and the lower end of the second spiral tube 31 is connected to the second fish outlet pipe 32. This prevents fish from flowing back out and also reduces the overall size of the system. Furthermore, the inner diameter of the second spiral tube 31 is uniform and its surface is smooth, facilitating the smooth intake or discharge of fish to empty the second spiral tube 31. In this embodiment, the diameter of the second spiral tube 31 is approximately 2 μm, and the number of spiral turns reaches 4 or more.

[0070] like Figures 1-3As shown, optionally, the fish suction and discharge driving assembly also includes multiple first branch pipes 18. One end of each first branch pipe 18 is connected to its corresponding first spiral section, and the other end is connected to the inlet end of the pumping assembly. Each first branch pipe 18 has a first grid at its inlet end and a first branch valve 14 on it. The fish suction and discharge driving assembly also includes multiple second branch pipes 40. One end of each second branch pipe 40 is connected to its corresponding second spiral section, and the other end is connected to the inlet end of the pumping assembly. Each second branch pipe 40 has a second grid at its inlet end and a second branch valve 36 on it. Taking the first spiral pipe 7 as an example, when the pressure difference between the inlet and outlet of the pumping assembly is too large, causing a decrease in fish suction capacity, each first branch valve 14 is opened sequentially from bottom to top, while the other first branch valves 14 and the first pumping valve 13 are closed. This allows each first spiral section to suction fish from bottom to top, thereby maximizing the number of fish sucked into the first spiral pipe 7 in a short time, improving fish suction capacity and efficiency. In this embodiment, both the first branch valve 14 and the second branch valve 36 are remote-controlled valves. In this embodiment, the diameter of the first branch pipe 18 and the second branch pipe 40 is approximately DN150. Both the first and second grilles have a gap of 20mm and are coated with soft rubber.

[0071] like Figure 2 As shown, optionally, the first fish storage assembly also includes a first check pipe 5 and a first flap-type check grille 6. One end of the first check pipe 5 is connected to the first fish inlet pipe 4, and the other end is connected to the upper end of the first spiral pipe 7. The first flap-type check grille 6 is disposed inside the first check pipe 5. During the fish inlet process, under the pressure of the fish and water, the first flap-type check grille 6 flips upward, allowing the fish to smoothly enter the first spiral pipe 7. When fish inlet stops, the first flap-type check grille 6 automatically returns to its original position to prevent the fish that have entered the first spiral pipe 7 from flowing back out.

[0072] like Figure 3 As shown, the second fish storage assembly also includes a second check pipe 29 and a second flap-type check grille 30. One end of the second check pipe 29 is connected to the second fish inlet pipe 28, and the other end is connected to the upper end of the second spiral pipe 31. The second flap-type check grille 30 is disposed inside the second check pipe 29. During the fish inlet process, under the pressure of the fish and water, the second flap-type check grille 30 flips upward, allowing the fish to smoothly enter the second spiral pipe 31. When fish inlet stops, the second flap-type check grille 30 automatically returns to its original position to prevent the fish that have entered the second spiral pipe 31 from flowing back out.

[0073] In this embodiment, both the first flap-type check grille 6 and the second flap-type check grille 30 are circular grilles with a grille gap of about 20mm and a soft rubber coating on the surface to prevent fish from being injured.

[0074] Optionally, the inner diameters of the first fish inlet pipe 4, the first check pipe 5, the first spiral pipe 7, and the first fish outlet pipe 8 are all the same, as are the inner diameters of the second fish inlet pipe 28, the second check pipe 29, the second spiral pipe 31, and the second fish outlet pipe 32. That is, the inner diameters of the first and second fish conveying components from inlet to outlet are consistent, ensuring smooth flow and reducing the risk of injury to the fish's surface. Furthermore, the diameters of the fish suction pipe 1, the fish inlet tee 2, the fish outlet tee 11, and the fish discharge pipe 12 are also the same as those of the first and second fish conveying components, further facilitating fish transport and preventing injury. In this embodiment, the diameters of the first and second fish conveying components are approximately DN300. In this embodiment, the diameters of all pipes in the fish suction and discharge drive assembly are the same, approximately DN150.

[0075] To prevent fish from being injured, optionally, the inner walls of the first fish inlet pipe 4, the first check pipe 5, the first spiral pipe 7, and the first fish outlet pipe 8 are all provided with a first flexible buffer layer, and the inner walls of the second fish inlet pipe 28, the second check pipe 29, the second spiral pipe 31, and the second fish outlet pipe 32 are all provided with a second flexible buffer layer. In this embodiment, both the first and second flexible buffer layers are made of soft rubber.

[0076] In this embodiment, both the fish inlet tee 2 and the fish outlet tee 11 are Y-shaped equal diameter tees with a smooth internal transition. Moreover, the diameter of each connector is the same as that of the first fish conveying component and the second fish conveying component. The inner surface is also coated with soft rubber to prevent fish from being injured.

[0077] This embodiment also provides a method for non-destructive fish transport, which is implemented based on the above-mentioned non-destructive fish transport system. The method for non-destructive fish transport specifically includes the following steps:

[0078] S1. The first fish inlet valve 3 and the second fish outlet valve 34 are open, the second fish inlet valve 27 and the first fish outlet valve 10 are closed, the second water pumping valve 35 is closed, the first water pumping valve 13 is open, the first flushing valve 25 is closed, and the second flushing valve 47 is open.

[0079] S2. The pumping component starts, causing the first fish storage component to store fish and the second fish storage component to discharge fish, while the pumping component stops.

[0080] S3, the first fish inlet valve 3 and the second fish outlet valve 34 are closed, the second fish inlet valve 27 and the first fish outlet valve 10 are open, the first water pumping valve 13 is closed, the second water pumping valve 35 is open, the second flushing valve 47 is closed, and the first flushing valve 25 is open;

[0081] S4. The pumping component starts, which causes the second fish storage component to store fish and the first fish storage component to discharge fish. The pumping component stops.

[0082] S5, repeating steps S1-S4, thereby achieving continuous fish suction and continuous fish discharge, effectively preventing fish from being damaged during the transportation process.

[0083] Optionally, the fish non-destructive transport method further includes the following steps after step S2 and before step S3: S6, the second fish outlet valve 34 and the first fish outlet valve 10 are closed, the second fish inlet valve 27 and the first fish inlet valve 3 are opened, the second water pumping valve 35 is opened, the first water pumping valve 13 is closed, the second flushing valve 47 is closed, and the first flushing valve 25 is opened; S7, the pumping assembly is started, so that the fish at the first fish inlet valve 3 enter the second fish storage assembly, and the pumping assembly is stopped.

[0084] The method for non-destructive fish transport includes the following steps after step S4 and before step S1: S8, the second fish outlet valve 34 and the first fish outlet valve 10 are closed, the second fish inlet valve 27 and the first fish inlet valve 3 are opened, the second water pumping valve 35 is closed, the first water pumping valve 13 is opened, the first flushing valve 25 is closed, and the second flushing valve 47 is opened; S9, the pumping assembly is started, so that the fish at the second fish inlet valve 27 enter the first fish storage assembly, and the pumping assembly is stopped.

[0085] Specifically, the process for the non-destructive transport of fish is as follows:

[0086] like Figure 4 As shown, the second fish inlet valve 27 and the first fish outlet valve 10 are closed, the first fish inlet valve 3 and the second fish outlet valve 34 are open, the first branch valve 14, the second branch valve 36 and the second water pumping valve 35 are closed, the first water pumping valve 13 is open, the first flushing valve 25 is closed, the second flushing valve 47 is open, and the second delivery pump 44 is running. The system draws fish water from the first fish pond 100 into the fish suction pipe 1. The fish water passes through the fish inlet tee 2, the first fish inlet valve 3, the first fish inlet pipe 4, the first check pipe 5, the first spiral pipe 7, and the first fish outlet pipe 8. The fish are stopped after reaching the first grid sleeve 9 and the first fish outlet valve 10. The water remaining in the first spiral tube 7, after the fish are separated, continues to pass through the first pump valve 13, the first pump pipe 17, the first connecting pipe 49, and the second pump pipe 43 before entering the second delivery pump 44. After being pressurized by the second delivery pump 44, the water passes through the second flush valve 47 and the second flush pipe 48 before entering the second fish inlet pipe 28. The pressurized water discharges the fish and water from the second spiral tube 31. The discharged fish and water then pass through the second fish outlet valve 34, the fish outlet tee 11, and the fish outlet pipe 12 before entering the second fish pond 200, thus completing the fish suction process of the first fish conveying component and the fish discharge process of the second fish conveying component.

[0087] like Figure 5As shown, the first fish outlet valve 10 and the second fish outlet valve 34 are closed, the first fish inlet valve 3 and the second fish inlet valve 27 are open, the first water pumping valve 13, the first branch valve 14 and the second branch valve 36 are closed, the second water pumping valve 35 is open, the second flushing valve 47 is closed, the first flushing valve 25 is open, the second delivery pump 44 is running, and the water discharged by the second delivery pump 44 passes through the second connecting pipe 50, the first pump pipe 21, the first flushing pipe 26 and enters the first fish inlet pipe 4. The fish and water in the first fish inlet pipe 4 are flushed away. The fish and water pass through the first fish inlet valve 3, the fish inlet tee 2, the second fish inlet valve 27, the second fish inlet pipe 28, the second check pipe 29, the second spiral pipe 31 and the second fish outlet pipe 32. The fish are blocked after reaching the second grid sleeve 33 and are left in the pipe of the second spiral pipe 31. The water after separating the fish continues to pass through the second water pumping valve 35 and the second water pumping pipe 39 and enters the second delivery pump 44. This completes the flushing process of the first fish inlet valve 3, flushing away any fish that may remain in the first fish inlet valve 3, and preparing for the first fish inlet valve 3 to close.

[0088] like Figure 6 As shown, the second fish inlet valve 27 and the first fish outlet valve 10 are open, the first fish inlet valve 3 and the second fish outlet valve 34 are closed, the first water suction valve 13, the first branch valve 14, and the second branch valve 36 are closed, the second water suction valve 35 is open, the second flushing valve 47 is closed, the first flushing valve 25 is open, the second delivery pump 44 is running, and the fish water in the first fish pond 100 is sucked in through the fish suction pipe 1. The fish water passes through the fish inlet tee 2, the second fish inlet valve 27, the second fish inlet pipe 28, the second check pipe 29, the second spiral pipe 31, and the second fish outlet pipe 32. The fish are blocked after reaching the second grid sleeve 33 and are left in the second spiral. Inside pipe 31, the water after fish separation continues to pass through the second pump valve 35, the second pump pipe 39, and the second pump pipe 43 before entering the second delivery pump 44. After being pressurized by the second delivery pump 44, the water passes through the second connecting pipe 50, the first pump pipe 21, the first flush valve 25, and the first flush pipe 26 before entering the first fish inlet pipe 4. The pressurized water discharges the fish and water from the first spiral pipe 7. The discharged fish and water then pass through the first fish outlet valve 10, the fish outlet tee 11, and the fish outlet pipe 12 before entering the second fish pond 200, thus completing the fish discharge process of the first fish conveying component and the fish suction process of the second fish conveying component.

[0089] like Figure 7As shown, the first fish outlet valve 10 and the second fish outlet valve 34 are closed, the first fish inlet valve 3 and the second fish inlet valve 27 are open, the first branch valve 14, the second branch valve 36 and the second pumping valve 35 are closed, the first pumping valve 13 is open, the first flushing valve 25 is closed, the second flushing valve 47 is open, the second delivery pump 44 is running, and the water discharged by the second delivery pump 44 enters the second fish inlet pipe 28 through the second flushing pipe 48. The fish and water in the second fish inlet pipe 28 are flushed away. The fish and water pass through the second fish inlet valve 27, the fish inlet tee 2, the first fish inlet valve 3, the first fish inlet pipe 4, the first check pipe 5, the first spiral pipe 7, and the first fish outlet pipe 8. The fish are blocked after reaching the first grid sleeve 9 and are left in the pipe of the first spiral pipe 7. The water after the fish are separated continues to enter the second delivery pump 44 after passing through the first pumping valve 13 and the first connecting pipe 49. This completes the flushing process of the second fish inlet valve 27, flushing away any fish that may remain in the second fish inlet valve 27, and preparing for the second fish inlet valve 27 to close.

[0090] make Figures 4 to 7 The process repeats itself continuously, thus completing the continuous process of fish suction and fish transport in the system.

[0091] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A fish non-destructive transport system, characterized in that, include: The first fish conveying assembly includes a first fish inlet pipe (4), a first fish storage assembly and a first fish outlet pipe (8). The first fish inlet pipe (4) is provided with a first fish inlet valve (3), and the first fish outlet pipe (8) is provided with a first fish outlet valve (10). The inlet end of the first fish storage assembly is connected to the first fish inlet pipe (4), and the outlet end of the first fish storage assembly is connected to the first fish outlet pipe (8). The second fish conveying assembly includes a second fish inlet pipe (28), a second fish storage assembly, and a second fish outlet pipe (32). The second fish inlet pipe (28) is provided with a second fish inlet valve (27), and the second fish outlet pipe (32) is provided with a second fish outlet valve (34). The inlet end of the second fish storage assembly is connected to the second fish inlet pipe (28), and the outlet end of the second fish storage assembly is connected to the second fish outlet pipe (32). The fish suction and discharge drive assembly includes a first suction pipe (17), a first flushing pipe (26), a second suction pipe (39), a second flushing pipe (48), and a pumping assembly. The inlet end of the first suction pipe (17) is connected to the first fish outlet pipe (8) and is located upstream of the first fish outlet valve (10). The inlet end of the second suction pipe (39) is connected to the second fish outlet pipe (32) and is located upstream of the second fish outlet valve (34). Both the inlet ends of the first suction pipe (17) and the second suction pipe (39) have fish-blocking water passage components. The first suction pipe (17) is equipped with a first suction valve (13). The second water-drawing pipe (39) is provided with a second water-drawing valve (35). The outlet end of the first water-drawing pipe (17) and the outlet end of the second water-drawing pipe (39) are both connected to the pumping assembly. The inlet end of the first flushing pipe (26) and the inlet end of the second flushing pipe (48) are both connected to the pumping assembly. The outlet end of the first flushing pipe (26) is connected to the first fish inlet pipe (4). The outlet end of the second flushing pipe (48) is connected to the second fish inlet pipe (28). The first flushing pipe (26) is provided with a first flushing valve (25). The second flushing pipe (48) is provided with a second flushing valve (47). The pumping assembly includes a first pump pipe (21), a second pump pipe (43), a first delivery pump (22), a second delivery pump (44), a first connecting pipe (49), and a second connecting pipe (50). The first delivery pump (22) is disposed on the first pump pipe (21), and the second delivery pump (44) is disposed on the second pump pipe (43). One end of the first connecting pipe (49) is connected to the first pump pipe (21) upstream of the first delivery pump (22), and the other end of the first connecting pipe (49) is connected to the second pump pipe (43) upstream of the second delivery pump (44). One end of the second connecting pipe (50) is connected to the first pump pipe (21) downstream of the first delivery pump (22), and the other end of the second connecting pipe (50) is connected to the second pump pipe (43) downstream of the second delivery pump (44). The first pump pipe (17) is connected to the first pump pipe (21) upstream of the first delivery pump (22), the first flush pipe (26) is connected to the first pump pipe (21) downstream of the first delivery pump (22), the second pump pipe (39) is connected to the second pump pipe (43) upstream of the second delivery pump (44), and the second flush pipe (48) is connected to the second pump pipe (43) downstream of the second delivery pump (44).

2. The fish non-destructive transport system according to claim 1, characterized in that, The fish non-destructive transport system also includes a fish inlet tee (2), which includes a first connector, a second connector and a third connector that are interconnected. The first fish inlet pipe (4) is connected to the first connector, and the second fish inlet pipe (28) is connected to the second connector. The outlet end of the first flushing pipe (26) is located downstream of the first fish inlet valve (3), and the outlet end of the second flushing pipe (48) is located downstream of the second fish inlet valve (27).

3. The fish non-destructive transport system according to claim 1, characterized in that, The first fish storage assembly includes a first spiral tube (7), which extends spirally from its upper end to its lower end, thereby forming multiple spiral segments arranged from top to bottom. The upper end of the first spiral tube (7) is connected to the first fish inlet tube (4), and the lower end of the first spiral tube (7) is connected to the first fish outlet tube (8), and / or, The second fish storage assembly includes a second spiral tube (31), which extends spirally from its upper end to its lower end to form multiple spiral segments arranged from top to bottom. The upper end of the second spiral tube (31) is connected to the second fish inlet tube (28), and the lower end of the second spiral tube (31) is connected to the second fish outlet tube (32).

4. The fish non-destructive transport system according to claim 3, characterized in that, The fish suction and fish discharge driving assembly also includes multiple first branch pipes (18), one end of each first branch pipe (18) is connected to the corresponding first spiral segment, and the other end is connected to the inlet end of the pumping assembly. The inlet end of each first branch pipe (18) is provided with a first grid, and the first branch pipe (18) is provided with a first branch valve (14). The fish suction and fish discharge driving assembly also includes multiple second branch pipes (40), one end of each second branch pipe (40) is connected to the corresponding second spiral segment, and the other end is connected to the inlet end of the pumping assembly. The inlet end of each second branch pipe (40) is provided with a second grid, and the second branch pipe (40) is provided with a second branch valve (36).

5. The fish non-destructive transport system according to claim 3, characterized in that, The first fish storage assembly further includes a first check pipe (5) and a first flap-type check grille (6). One end of the first check pipe (5) is connected to the first fish inlet pipe (4), and the other end is connected to the upper end of the first spiral pipe (7). The first flap-type check grille (6) is disposed inside the first check pipe (5), and / or, The second fish storage assembly also includes a second check pipe (29) and a second flap check grid (30). One end of the second check pipe (29) is connected to the second fish inlet pipe (28), and the other end is connected to the upper end of the second spiral pipe (31). The second flap check grid (30) is disposed inside the second check pipe (29).

6. The fish non-destructive transport system according to claim 5, characterized in that, The inner diameters of the first fish inlet pipe (4), the first check pipe (5), the first spiral pipe (7), and the first fish outlet pipe (8) are all the same, and the inner diameters of the second fish inlet pipe (28), the second check pipe (29), the second spiral pipe (31), and the second fish outlet pipe (32) are all the same.

7. The fish non-destructive transport system according to claim 5, characterized in that, The inner walls of the first fish inlet pipe (4), the first check pipe (5), the first spiral pipe (7) and the first fish outlet pipe (8) are all provided with a first flexible buffer layer, and the inner walls of the second fish inlet pipe (28), the second check pipe (29), the second spiral pipe (31) and the second fish outlet pipe (32) are all provided with a second flexible buffer layer.

8. A method for non-destructive transport of fish, characterized in that, Based on the non-destructive fish transport system as described in any one of claims 1-7, the system includes the following steps: S1. The first fish inlet valve (3) and the second fish outlet valve (34) are open, the second fish inlet valve (27) and the first fish outlet valve (10) are closed, the second water pump valve (35) is closed, the first water pump valve (13) is open, the first flush valve (25) is closed, and the second flush valve (47) is open. S2. The pumping component is started, causing the first fish storage component to store fish and the second fish storage component to discharge fish, and the pumping component is stopped. S3, the first fish inlet valve (3) and the second fish outlet valve (34) are closed, the second fish inlet valve (27) and the first fish outlet valve (10) are open, the first water pump valve (13) is closed, the second water pump valve (35) is open, the second flush valve (47) is closed, and the first flush valve (25) is open; S4. The pumping component is started, causing the second fish storage component to store fish and the first fish storage component to discharge fish, and the pumping component is stopped. S5, repeat steps S1-S4.

9. The method for non-destructive transport of fish according to claim 8, characterized in that, The fish non-destructive transport system also includes a fish inlet tee (2), which includes a first connector, a second connector and a third connector that are interconnected. The first fish inlet pipe (4) is connected to the first connector, and the second fish inlet pipe (28) is connected to the second connector. The outlet end of the first flushing pipe (26) is located downstream of the first fish inlet valve (3), and the outlet end of the second flushing pipe (48) is located downstream of the second fish inlet valve (27). The method for non-destructive transport of fish, after step S2 and before step S3, further includes the following steps: S6. The second fish outlet valve (34) and the first fish outlet valve (10) are closed, the second fish inlet valve (27) and the first fish inlet valve (3) are open, the second water pump valve (35) is open, the first water pump valve (13) is closed, the second flush valve (47) is closed, and the first flush valve (25) is open. S7. The pumping assembly is started, so that the fish at the first fish inlet valve (3) enters the second fish storage assembly, and the pumping assembly is stopped. The method for non-destructive transport of fish, after step S4 and before step S1, further includes the following steps: S8. The second fish outlet valve (34) and the first fish outlet valve (10) are closed, the second fish inlet valve (27) and the first fish inlet valve (3) are open, the second water pump valve (35) is closed, the first water pump valve (13) is open, the first flush valve (25) is closed, and the second flush valve (47) is open. S9. The pumping assembly is started, causing the fish at the second fish inlet valve (27) to enter the first fish storage assembly, and the pumping assembly is stopped.

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