Aquaculture system

Abstract

The invention provides an aquaculture system, and belongs to the technical field of aquaculture. The problem that the fertility of water of an existing culture system is uncontrollable is solved. The aquaculture system comprises a purified water area, a transition pool and a plurality of ecological purification pools used for aquaculture, the ecological purification pools are in a long strip shape and are arranged in the transition pool side by side, the transition pool is communicated with the outside, and a first channel and a second channel which are located on the two sides of the ecological purification pools in the length direction respectively are arranged between the purified water area and the transition pool. A first flashboard and a first oxygenation water pushing machine are arranged in the first channel, a second flashboard and a second oxygenation water pushing machine are arranged in the second channel, and a third oxygenation water pushing machine is arranged in each ecological purification pond. The culture system can realize two circulation modes of external circulation and internal circulation, and the external circulation can realize clockwise and anticlockwise flow, so that the water and fertilizer degree of the whole culture system can be adjusted, the phenomena of water eutrophication and non-uniform water and fertilizer degree are avoided, and the culture benefit is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of aquaculture and relates to an aquaculture system. Background Art

[0002] With the continuous growth of the Chinese population and the improvement of living standards, the demand for aquatic products is increasing, and at the same time, the quality requirements for aquatic products are also getting higher and higher. However, the current situation of world fishery resources is not optimistic. The supply of seafood caught solely from marine fishing is already unable to meet the increasing demand of people. Moreover, some aquatic products are discarded because their fatness fails to meet the standards after being caught, which makes the supply even more stretched. Therefore, aquaculture has become the greatest reliance and guarantee for people's demand for aquatic products.

[0003] In order to achieve recyclable ecological aquaculture, existing aquaculture basically adopts polyculture, that is, converting the waste discharged by one aquaculture animal into the food of another aquaculture animal. A common example is the polyculture of fish and shellfish. The tail water of fish farming becomes the natural bait for shellfish farming after being treated by the system. After the shellfish absorb and purify it, fish farming is carried out again.

[0004] For example, Chinese Patent Application (Application No.: 201920105976.3) discloses a seawater pond shrimp and shellfish aquaculture system, including at least two ponds that are interconnected. The pond includes a high-density fish farming unit, a shellfish farming unit, and a real-time monitor for detecting the water quality in the water. The shellfish farming unit is arranged in the pond. Three long strip-shaped flowing water culture tanks are opened at the connection of any two adjacent ponds. A water pushing device for promoting the flow of water is installed at one end of the flowing water culture tank. The flowing water culture tank is made of PVC material, and the three flowing water culture tanks constitute a high-density fish farming unit.

[0005] The above aquaculture system can effectively culture shellfish, but there are still the following defects: The supply of plankton in fish tail water varies seasonally, so the fatness of the water is different in each season. Therefore, in the above aquaculture system, when the supply of plankton in the water is too large in a certain season, that is, when the water is too fat and exceeds the absorption capacity of shellfish, nutrient surplus will occur, resulting in eutrophication, thus unable to purify the water quality and even affecting aquaculture. At the same time, in the above aquaculture system, after a long time, the fatness of the upstream water will be greater than that of the downstream water, thus forming a vicious cycle, which will affect the growth of shellfish in the downstream.

[0006] To solve the above problem of water fatness, the current conventional method is to discharge and replace the aquaculture water according to the water quality detected by the real-time monitor, or add water for dilution, but the cost is relatively high. Summary of the Invention

[0007] The object of the present invention is to address the above problems existing in the prior art and propose an aquaculture system. The technical problem to be solved by the present invention is: how to solve the problem that the water fertility of the existing aquaculture system is uncontrollable.

[0008] The object of the present invention can be achieved by the following technical solutions: An aquaculture system includes several ecological purification ponds for aquaculture. It is characterized in that the aquaculture system further includes a purification water area and a transition pond. Several ecological purification ponds are all in a long strip shape and arranged side by side in the transition pond. The transition pond communicates with the outside. There are a first channel and a second channel for connecting the purification water area and the transition pond. The first channel and the second channel are respectively located on both sides of the ecological purification pond in the length direction. A first sluice gate and a second sluice gate capable of controlling their on-off are respectively provided on the first channel and the second channel. An oxygen-increasing water-pushing machine one capable of pushing the water in the purification water area towards the transition pond is provided in the first channel. An oxygen-increasing water-pushing machine two capable of pushing the water in the purification water area towards the transition pond is provided in the second channel. An oxygen-increasing water-pushing machine three capable of pushing the water in the corresponding ecological purification pond to flow is provided in each ecological purification pond.

[0009] In this aquaculture system, the fish tail water is stored in the purification water area. The ecological purification ponds can be used for culturing shellfish. By arranging a number of ecological purification ponds in the transition pond, and connecting the transition pond and the purification water area through Passage 1 and Passage 2. During actual operation, the lifting of gate 1 and gate 2 can be controlled according to requirements to control the on-off of Passage 1 and Passage 2. For example, during normal use, gate 1 can be controlled to rise to open Passage 1, and gate 2 can be controlled to fall to close Passage 2. Oxygenation water-pushing machine 1 operates, while oxygenation water-pushing machine 2 and oxygenation water-pushing machine 3 stop. The water in the purification water area flows into the transition pond through Passage 1 and flows from one end to the other end of a number of ecological purification ponds to form a clockwise outer circulation. After operating for a period of time, when the water fertility at one end of the ecological purification pond close to Passage 1 is higher than that at the other end, gate 1 is controlled to fall to close Passage 1, and gate 2 is controlled to rise to open Passage 2. Oxygenation water-pushing machine 2 operates, while oxygenation water-pushing machine 1 and oxygenation water-pushing machine 3 stop. The water in the purification water area flows into the transition pond through Passage 2 and flows from the other end to one end of a number of ecological purification ponds to form a counterclockwise outer circulation, so as to balance the water fertility at both ends. When in a certain season, the supply of plankton in the water flowing into the purification water area is too large and the water fertility is too high, and the shellfish in each ecological purification pond show nutrient excess after absorption, gate 1 and gate 2 are controlled to fall to close both Passage 1 and Passage 2. Oxygenation water-pushing machine 1 and oxygenation water-pushing machine 2 stop operating, and oxygenation water-pushing machine 3 operates. The purification water area stops feeding water into the transition pond, and the remaining water in the transition pond realizes internal circulation under the action of oxygenation water-pushing machine 3, so as to consume the redundant nutrients in the water of the transition pond. That is to say, through the above structural settings, this aquaculture system can realize two circulation modes of outer circulation and inner circulation, and the outer circulation can also realize the flow in two directions of clockwise and counterclockwise, so as to realize the adjustable water fertility of the entire aquaculture system, avoid the phenomenon of water eutrophication and uneven water fertility in the entire ecological purification pond, and ensure the aquaculture benefits. Moreover, the water flow of the entire aquaculture system can be promoted only by the oxygenation water-pushing machine, which has lower energy consumption compared with the existing large water pumps, and the management of the entire system is more convenient, greatly reducing the cost. At the same time, this aquaculture system is not only used for culturing shellfish, but also can be used for the short-term culture of some other seafood. For example, for some seafood with poor fatness and no economic value caught (such as swimming crabs, etc.), these seafood can be placed in this aquaculture system to be fattened and then sold to achieve economic gain.

[0010] In the above aquaculture system, there are several of the first channels and the second channels. The several first channels are arranged side by side, and the several second channels are arranged side by side. A first sluice gate and a first aeration water-pushing machine are provided in each first channel, and a second sluice gate and a second aeration water-pushing machine are provided in each second channel. By providing a plurality of first channels and a plurality of second channels, each first channel and each second channel can be independently controlled for on-off. Thus, by controlling the on-off of the first channels and the second channels and the operation of the first aeration water-pushing machines and the second aeration water-pushing machines in the corresponding first channels and second channels, the flow rate of the water circulation can be controlled, and the adjustment of the water fertilizer degree can be achieved more precisely, which is more in line with the growth habits of the aquaculture products, and further guarantees the aquaculture benefits.

[0011] In the above aquaculture system, a third sluice gate capable of controlling its on-off is provided in each ecological purification pond. By controlling the third sluice gate to descend to cut off the connection between the ecological purification pond and the transition pond, it is convenient for draining water for fishing. Preferably, at least two third sluice gates are provided in each ecological purification pond. When the water fertilizer degree in a certain ecological purification pond is too high, the corresponding third sluice gate in this ecological purification pond can also be controlled to be briefly closed to disconnect it from the transition pond and break away from the water circulation, and the surplus nutrients can be consumed internally first, so that the adjustment of the water fertilizer degree can be achieved more precisely, which is more in line with the growth habits of the aquaculture products, and further guarantees the aquaculture benefits.

[0012] In the above aquaculture system, a seedling collection area is provided at at least one end of each ecological purification pond, and a number of seedling collection holes are provided in each seedling collection area. Through the setting of the seedling collection area and the seedling collection holes, this aquaculture system can also be used for breeding the seedlings of seafood. After breeding well, place a seedling collection bag in the seedling collection holes. By controlling the third sluice gate to cut off the connection between one end of the ecological purification pond and the transition pond, and using the third aeration water-pushing machine to push the water to flow towards the other end to drain the water. At the same time of draining the water, the seedlings will move along with the water flow to the seedling collection area at this end and enter the seedling collection bag through the seedling collection holes to realize the fishing and collection of the seedlings, and the operation is simple.

[0013] In the above aquaculture system, the transition pond is connected to the outside through a drain pipe, and this aquaculture system further includes a number of inspection wells, and the inspection wells are connected to the drain pipe. The aquaculture tail water in the purification water area is discharged through the drain pipe after being absorbed and purified by the cultured seafood such as shellfish in each ecological purification pond and is reused for fish farming. The setting of the inspection wells facilitates the dredging and maintenance when the pipeline is blocked.

[0014] In the above aquaculture system, an artificial walkway spanning several ecological purification ponds and allowing people to walk is further provided above the ecological purification ponds in the transition pond. The setting of the artificial walkway facilitates the movement of aquaculture workers for operation.

[0015] In the above aquaculture system, the purification water area is arranged around the transition pond or on one side of the transition pond, and an operation path extending along the length direction of the ecological purification pond and allowing people to walk is also provided between the purification water area and the transition pond. The setting of the operation path facilitates the movement of aquaculture workers for operations.

[0016] In the above aquaculture system, both the first channel and the second channel are strip-shaped, and gate plates one are provided at both ends of the first channel, and gate plates two are provided at both ends of the second channel. Thereby, the water flow rate in the first channel and the second channel can be better controlled, the adjustment of the water fertilizer degree can be realized more accurately, which is more in line with the growth habits of the aquaculture aquatic products, and further guarantees the aquaculture benefits.

[0017] In the above aquaculture system, an operation platform is also provided in the transition pond, and the operation platform is connected to the operation path. The setting of the operation platform can be used for storing tools and also as a venue for selling after fishing.

[0018] In the above aquaculture system, each of the first aeration water-pushing machine, the second aeration water-pushing machine, and the third aeration water-pushing machine includes a machine body and a frame. The frame has a baffle plate arranged obliquely, and the ports of the air outlet pipes of the machine body are all located below the corresponding baffle plates. The machine body blows air into the water, thereby generating bubbles in the water, causing the water to churn upward with the bubbles. The upward-churning water collides with the corresponding baffle plate and flows forward under the inclined guidance of the baffle plate, thereby realizing the promotion of water flow. At the same time, the blowing of the machine body generates bubbles in the water, which can also play a role in supplementing dissolved oxygen into the water and realizing the function of oxygenation.

[0019] Compared with the prior art, the present aquaculture system has the following advantages:

[0020] 1. The entire aquaculture system can realize two circulation modes of external circulation and internal circulation, and the external circulation can also realize clockwise and counterclockwise flows in two directions, thereby realizing the adjustable water fertilizer degree of the entire aquaculture system, avoiding the phenomena of water eutrophication and uneven water fertilizer degree in the entire ecological purification pond, and guaranteeing the aquaculture benefits.

[0021] 2. The flow rate and flow volume of the water circulation are controllable, the adjustment of the water fertilizer degree can be realized more accurately, which is more in line with the growth habits of the aquaculture aquatic products, and further guarantees the aquaculture benefits.

[0022] 3. A short-term internal circulation can be realized within a single ecological purification pond, which can locally consume the surplus nutrients, the adjustment of the water fertilizer degree can be realized more accurately, which is more in line with the growth habits of the aquaculture aquatic products, and further guarantees the aquaculture benefits.

[0023] 4. Fishing and manual operations are convenient, the energy consumption is low, the cost is reduced, and the benefits are increased. Description of the Drawings

[0024] Figure 1 This is the floor plan of the aquaculture system.

[0025] Figure 2 It is Figure 1 The enlarged view of location A in

[0026] Figure 3 It is Figure 1 The enlarged view of location B in

[0027] Figure 4 It is Figure 1 The enlarged view of location C in

[0028] Figure 5 It is the structural schematic diagram of the oxygen-increasing water-pushing machine 1, the oxygen-increasing water-pushing machine 2 or the oxygen-increasing water-pushing machine 3.

[0029] In the figure, 1 is the ecological purification pond; 1a is the fry collection area; 1b is the fry collection hole; 2 is the purification water area; 3 is the transition pond; 4 is the passage 1; 5 is the passage 2; 6 is the gate plate 1; 7 is the gate plate 2; 8 is the oxygen-increasing water-pushing machine 1; 9 is the oxygen-increasing water-pushing machine 2; 10 is the oxygen-increasing water-pushing machine 3; 11 is the gate plate 3; 12 is the drain pipe; 13 is the inspection well; 14 is the artificial walkway; 15 is the operation path; 16 is the operation platform; 17a is the machine body; 17b is the frame; 17c is the baffle; 17d is the air outlet pipe; 18 is the filter screen 1; 19 is the filter screen 2. Specific embodiments

[0030] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0031] As Figure 1 shown, this aquaculture system includes a purification water area 2, a transition pond 3, several inspection wells 13, and several ecological purification ponds 1 for aquaculture. Several ecological purification ponds 1 are all strip-shaped and arranged side by side in the transition pond 3. A passage 1 4 and a passage 2 5 for connecting the two are provided between the purification water area 2 and the transition pond 3. The passage 1 4 and the passage 2 5 are respectively located on both sides of the length direction of the ecological purification pond 1. The transition pond 3 is communicated with the outside through a drain pipe 12, and the inspection well 13 is connected with the drain pipe 12 for dredging and maintenance after the drain pipe 12 is blocked.

[0032] Specifically, as Figure 1-3As shown, there are several of Channel 1 (4) and Channel 2 (5). Both Channel 1 (4) and Channel 2 (5) are strip-shaped. Several Channel 1s (4) are arranged side by side, and several Channel 2s (5) are arranged side by side. In each Channel 1 (4), there is a gate plate 1 (6) that can control its on-off and an oxygen-increasing water-pushing machine 1 (8) that can push the water in the purification water area (2) towards the transition pool (3). In each Channel 2 (5), there is a gate plate 2 (7) that can control its on-off and an oxygen-increasing water-pushing machine 2 (9) that can push the water in the purification water area (2) towards the transition pool (3). At both ends of Channel 1 (4), there are gate plates 1 (6), and at both ends of Channel 1 (4), there are also filter meshes 1 (18). The two gate plates 1 (6) are located between the two filter meshes 1 (18). At both ends of Channel 2 (5), there are gate plates 2 (7), and at both ends of Channel 2 (5), there are also filter meshes 2 (19). The two gate plates 2 (7) are located between the two filter meshes 2 (19). The setting of the filter mesh 1 and the filter mesh 2 can prevent the fish in the purification water area (2) from entering the ecological purification pond (1) and eating the cultured organisms in the ecological purification pond (1).

[0033] As Figure 1 and 4 shown, in each ecological purification pond (1), there is an oxygen-increasing water-pushing machine 3 (10) that can push the water in the corresponding ecological purification pond (1) to flow. In each ecological purification pond (1), there is a gate plate 3 (11) that can control its on-off. In each ecological purification pond (1), there are at least two gate plates 3 (11). In each ecological purification pond (1), at least at one end, there is a fry collection area (1a), and in each fry collection area (1a), there are several fry collection holes (1b). In this embodiment, at one end of the ecological purification pond (1), there is a fry collection area (1a), and there are two gate plates 3 (11). One is set in the middle of the corresponding ecological purification pond (1), and the other is set at the end with the fry collection area (1a).

[0034] Furthermore, as Figure 5 shown, each of the oxygen-increasing water-pushing machine 1 (8), the oxygen-increasing water-pushing machine 2 (9), and the oxygen-increasing water-pushing machine 3 (10) includes a machine body (17a) and a frame (17b). On the frame (17b), there is an inclined baffle (17c). The ports of the air outlet pipes (17d) of the machine body (17a) are all located below the corresponding baffle (17c). The machine body (17a) blows air into the water, so bubbles will be generated in the water, causing the water to churn upward with the bubbles. The upward-churning water collides with the corresponding baffle (17c) and will flow forward under the inclined guidance of the baffle (17c), thus realizing the pushing of the water flow. At the same time, the blowing of the machine body (17a) generates bubbles in the water, which can also play a role in supplementing dissolved oxygen into the water and realizing the function of oxygenation.

[0035] Above the ecological purification pond 1 in the transition pond 3, there is also an artificial walkway 14 that spans several ecological purification ponds 1 and is accessible for people to walk on, facilitating the movement of breeding personnel for operations. The purification water area 2 is arranged around the transition pond 3 or on one side of the transition pond 3. There is also an operation path 15 that extends along the length of the ecological purification pond 1 and is accessible for people to walk on between the purification water area 2 and the transition pond 3. An operation platform 16 is also provided in the transition pond 3. The operation platform 16 is connected to the operation path 15. The operation platform 16 can be used to store tools and can also be used as a venue for selling after fishing. In this embodiment, the purification water area 2 is located on one side of the transition pond 3, and the other side of the transition pond 3 is set as a road.

[0036] In this aquaculture system, fish tail water is stored in the purification water area 2. The ecological purification pond 1 can be used for breeding shellfish and can also be used for short-term breeding of some other seafood. For example, some seafood that is caught and is too thin and has poor fatness and no economic value (such as swimming crabs, etc.) can be placed in this aquaculture system to be fattened up and then sold to achieve economic gain.

[0037] During aquaculture, the sluice gate one 6 can be controlled to rise to open the passage one 4, and the sluice gate two 7 can be controlled to descend to close the passage two 5. The oxygenation and water-pushing machine one 8 operates, and the oxygenation and water-pushing machine two 9 and the oxygenation and water-pushing machine three 10 stop operating. The water in the purification water area 2 flows into the transition pond 3 through the passage one 4 and flows from one end of several ecological purification ponds 1 to the other end to form a clockwise outer circulation; after operating for a period of time, when the water fatness at one end of the ecological purification pond 1 near the passage one 4 is higher than that at the other end, the sluice gate one 6 is controlled to descend to close the passage one 4, the sluice gate two 7 is controlled to rise to open the passage two 5, the oxygenation and water-pushing machine two 9 operates, and the oxygenation and water-pushing machine one 8 and the oxygenation and water-pushing machine three 10 stop operating. The water in the purification water area 2 flows into the transition pond 3 through the passage and flows from the other end of several ecological purification ponds 1 to one end to form a counterclockwise outer circulation, so as to balance the water fatness at both ends. During this process, each passage one 4 and each passage two 5 can be independently controlled to be opened or closed, so as to control the flow rate of the water circulation by controlling the opening and closing of the passage one 4 and the passage two 5 and the operation or non-operation of the oxygenation and water-pushing machine one 8 and the oxygenation and water-pushing machine two 9 in the corresponding passage one 4 and passage two 5. When in a certain season, the supply of plankton in the water flowing into the purification water area 2 is too large and the water fatness is too high, and the shellfish in each ecological purification pond 1 absorb it and show nutritional excess, the sluice gate one 6 and the sluice gate two 7 are controlled to descend to close both the passage one 4 and the passage two 5, the oxygenation and water-pushing machine one 8 and the oxygenation and water-pushing machine two 9 stop operating, and the oxygenation and water-pushing machine three 10 operates. The purification water area 2 stops supplying water to the transition pond 3, and the remaining water in the transition pond 3 realizes internal circulation flow under the action of the oxygenation and water-pushing machine, so as to consume the surplus nutrients in the water of the transition pond 3. When the water fatness in a certain ecological purification pond 1 is too high, the corresponding sluice gate three 11 in this ecological purification pond 1 can also be controlled to be briefly closed to disconnect it from the transition pond 3 and break away from the water flow circulation, and first consume the surplus nutrients internally.

[0038] In addition, this aquaculture system can also be used to breed the seedlings of seafood. After the breeding is completed, a seedling collection bag is placed in the seedling collection hole 1b. By closing the third sluice gate 11 to cut off the connection between one end of the ecological purification pond 1 and the transition pond 3, the oxygenation and water-pushing machine three 10 is used to push the water to flow towards the other end to achieve water discharge. At the same time of water discharge, the seedlings will move with the water flow towards the seedling collection area 1a at this end and enter the seedling collection bag through the seedling collection hole 1b to realize the fishing and collection of the seedlings, and the operation is simple and convenient.

[0039] This aquaculture system can realize two circulation modes: external circulation and internal circulation. Moreover, the external circulation can realize the flow in two directions: clockwise and counterclockwise, so as to realize the adjustable water and fertilizer degree of the whole aquaculture system, avoid the phenomenon of water eutrophication and uneven water and fertilizer degree in the whole ecological purification pond 1, and ensure the aquaculture benefit. Moreover, the water flow of the whole aquaculture system can be promoted only by the oxygenation and water-pushing machine, which has lower energy consumption compared with the existing large water pumps, and the management of the whole system is more convenient, greatly reducing the cost.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although terms such as ecological purification pond 1, seedling collection area 1a, seedling collection hole 1b, purification water area 2, transition pond 3, passage one 4, passage two 5, first sluice gate 6, second sluice gate 7, oxygenation and water-pushing machine one 8, oxygenation and water-pushing machine two 9, oxygenation and water-pushing machine three 10, third sluice gate 11, drain pipe 12, inspection well 13, artificial walkway 14, operation path 15, operation platform 16, machine body 17a, frame 17b, baffle 17c, air outlet pipe 17d, etc. are used more in this article, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An aquaculture system, comprising a plurality of ecological purification pools (1) for aquaculture, characterized in that: The aquaculture system further comprises a purified water area (2) and a transition pool (3). The plurality of ecological purified water areas (1) are all in the shape of long strips and are arranged side by side in the transition pool (3). The transition pool (3) is connected to the outside. A channel 1 (4) and a channel 2 (5) are arranged between the purified water area (2) and the transition pool (3) to connect the two. The channel 1 (4) and the channel 2 (5) are respectively located on both sides of the length direction of the ecological purified water area (1). The channel 1 (4) and the channel 2 (5) are respectively provided with a gate plate 1 (6) and a gate plate 2 (7) capable of controlling the opening and closing thereof. The channel 1 (4) is provided with an aeration water pusher 1 (8) capable of pushing the water in the purified water area (2) to flow in the direction of the transition pool (3). The channel 2 (5) is provided with an aeration water pusher 2 (9) capable of pushing the water in the purified water area (2) to flow in the direction of the transition pool (3). Each ecological purified water area (1) is provided with an aeration water pusher 3 (10) capable of pushing the water in the corresponding ecological purified water area (1) to flow.

2. The aquaculture system according to claim 1, characterized in that: The channel one (4) and the channel two (5) are both provided in plurality, and the plurality of channel one (4) and the plurality of channel two (5) are provided in parallel. Each channel one (4) is provided with a gate plate one (6) and an aeration water pump one (8), and each channel two (5) is provided with a gate plate two (7) and an aeration water pump two (9).

3. The aquaculture system according to claim 1, characterized in that: Each ecological purification pool (1) is provided with a gate plate 3 (11) capable of controlling the opening and closing of the ecological purification pool (1).

4. The aquaculture system according to claim 1, 2 or 3, characterized in that: Each ecological purification pool (1) is provided with a seedling collection area (1a) at at least one end thereof, and each seedling collection area (1a) is provided with a plurality of seedling collection holes (1b).

5. The aquaculture system according to claim 1, 2 or 3, characterized in that: The transition pool (3) is connected to the outside world via a drainage pipe (12). The aquaculture system further comprises a plurality of inspection wells (13), and the inspection wells (13) are connected to the drainage pipe (12).

6. The aquaculture system according to claim 1, 2 or 3, characterized in that: An artificial passage (14) is provided above the ecological purification pool (1) in the transition pool (3) and spans across the ecological purification pools (1) and is accessible to people.

7. The aquaculture system according to claim 1, 2 or 3, characterized in that: The purified water area (2) is arranged around the transition pool (3) or is located on one side of the transition pool (3), and an operating path (15) extending along the length direction of the ecological purification pool (1) and accessible to people is also provided between the purified water area (2) and the transition pool (3).

8. The aquaculture system according to claim 1, 2 or 3, characterized in that: The channel 1 (4) and the channel 2 (5) are both in the shape of long strips. Both ends of the channel 1 (4) are provided with a gate plate 1 (6), and both ends of the channel 2 (5) are provided with a gate plate 2 (7).

9. The aquaculture system according to claim 7, characterized in that: An operating platform (16) is also provided in the transition pool (3), and the operating platform (16) is connected to the operating path (15).

10. The aquaculture system according to claim 1, 2 or 3, characterized in that: Each of the oxygenated water pumping machine one (8), the oxygenated water pumping machine two (9) and the oxygenated water pumping machine three (10) comprises a machine body (17a) and a frame (17b), wherein the frame (17b) is provided with a baffle (17c) arranged in an inclined manner, and the ports of the air outlet pipe (17d) of the machine body (17a) are all located below the corresponding baffle (17c).

Images