Water inlet aeration dissolved oxygen system

Abstract

The utility model relates to the field of water body aeration, concretely relates to a water inlet aeration dissolved oxygen system, it includes the pool, the bottom surface of pool is equipped with the slope for guiding the water flow to the sunken area, the lower part of sunken area is equipped with the drain pipe, is equipped with the first aerator in the sunken area, is connected with the aeration pipe on the first aerator, the aeration pipe is connected with the air outlet pipe line of air suspension oxygen -increasing machine, still includes the water storage jar, is equipped with the second aerator in the water storage jar, is connected with the gas delivery pipe on the second aerator, the gas delivery pipe is connected with the air outlet of air suspension oxygen -increasing machine, the water storage jar and aeration pipe line connection, is connected with the backwater pipe on the water storage jar, the drain pipe is connected with the backwater pipe, is installed the water delivery pipe on the water storage jar, the pool is equipped with a plurality of, and the aeration pipe of a plurality of pool is connected with the water delivery pipe. The water inlet aeration dissolved oxygen system installs the aeration disc by means of the drain of aquaculture pool, guarantees the aeration water depth, satisfies the installation demand and low water level aquaculture dissolved oxygen demand of air suspension oxygen -increasing machine.

Description

Technical Field

[0001] This utility model relates to the field of water aeration, specifically to an inlet aeration dissolved oxygen system. Background Technology

[0002] In modern intensive aquaculture, the density of fish in a unit of water is very high, and their oxygen consumption is enormous. The oxygen that diffuses naturally from the air above the water surface is far from enough. Oxygen deficiency will lead to decreased appetite, slow growth, and reduced resistance in fish. In severe cases, it can cause fish to surface for air or even suffocate and die on a large scale.

[0003] Traditional aeration methods often employ equipment such as surface impellers or nano-aeration pipes. These methods have limitations such as limited oxygen dissolution efficiency, high energy consumption, and high noise. Especially in shallow aquaculture ponds (such as those less than 50 cm), the water depth is insufficient to create adequate aeration depth, making it difficult to maintain the required dissolved oxygen concentration in the water, which is detrimental to fish growth and needs improvement. Utility Model Content

[0004] The purpose of this invention is to provide an inlet aeration dissolved oxygen system to address the above problems, thereby solving the problem in the prior art that it is difficult to aerate in shallow aquaculture ponds and that the water body is difficult to maintain the required dissolved oxygen concentration.

[0005] To achieve the above objectives, this utility model discloses a water inlet aeration dissolved oxygen system, including a water tank. The bottom surface of the water tank is provided with a slope for guiding water flow to a sinking zone. A drain pipe is installed at the bottom of the sinking zone. A first aerator is installed in the sinking zone. An aeration pipe is connected to the first aerator and is connected to the air outlet pipe of an air suspension aerator.

[0006] Compared to traditional aerators, air-suspended aerators consume less energy and produce less noise. The sinking zone, located at the bottom of the pool where water converges, allows air bubbles to rise along the longest possible path, maximizing air-water contact time while meeting aeration depth requirements. This significantly improves oxygen dissolution efficiency. The slope facilitates water flow during pool changes, guiding water to the sinking zone before centralized drainage through the drain pipe. By installing aeration discs at the pool's drain outlet, aeration pressure can be controlled below 10 kPa, achieving energy savings while meeting dissolved oxygen requirements for aquaculture at water depths below 50 cm.

[0007] It also includes a water storage tank, which contains a second aerator connected to an air supply pipe. The air supply pipe is connected to the air outlet of the air suspension aerator, and the water storage tank is connected to the aeration pipeline. Aeration is completed in the water storage tank, which avoids aeration noise disturbing the fish in the pond and ensures a quiet and high-quality growth environment in the pond.

[0008] The water storage tank is connected to a return water pipe, and the drain pipe is connected to the return water pipe. This allows for water circulation from the pool to the storage tank, thus enabling the water in the pool to be aerated again.

[0009] The water storage tank is equipped with a water supply pipe, and there are multiple water pools. The aeration pipes of each water pool are connected to the water supply pipe. A water pump is installed on the water supply pipe. Using one water storage tank, multiple independent water pools can be aerated simultaneously. This facilitates centralized control and maintenance of the equipment and is suitable for handling the fish farming needs of multiple water pools.

[0010] An air supply pipe is installed on the air supply pipe, which connects to the water supply pipe. Valves for controlling the flow of the pipeline are installed on the water supply pipe, air supply pipe, and air supply pipe. By combining the opening and closing of the valves, the operating mode of the system can be flexibly switched, allowing air to enter only the water storage tank, or allowing air to enter the water pool directly for aeration without passing through the water storage tank.

[0011] The water flow convergence area is located in the center of the pool, with the slope being the lowest point of the convergence area. The upflow and circulating flow generated by the aeration chamber in the center are more evenly distributed throughout the pool, resulting in a more stable treatment effect.

[0012] An aeration tank is installed at the bottom of the pool, and a grating plate is installed above the aeration tank. The grating plate has filter holes for water and air to pass through. The sinking area extends into the aeration tank, and the first aerator is installed in the aeration tank. The aeration pipe passes through the grating plate and connects to the first aerator. The grating plate is responsible for blocking fish and preventing fish or other debris from entering the aeration tank.

[0013] The grating plate consists of two halves, which are joined together to form the grating plate. The upper edge of the aeration pipe has a groove for supporting the outer edge of the grating plate, which is placed in the groove. A support plate for supporting the inner edge of the grating plate is installed on the aeration pipe, and the support plate is fitted onto the aeration pipe. This modular design allows the grating plate to be installed and removed without moving the aeration pipe, facilitating inspection, replacement, and maintenance of the equipment within the aeration chamber, thus reducing the difficulty and cost of equipment operation and maintenance.

[0014] The aeration pipe is fitted with a pressure plate for clamping the bar screen with a support plate. The pressure plate is located on the upper side of the bar screen, and the mating surfaces of the pressure plate and the aeration pipe are provided with threads that can be matched with each other. By using the threaded pressure plate to cooperate with the aeration pipe, the bar screen is pressed tightly from above, ensuring that the bar screen will not shift or loosen under the vibration generated by aeration and water flow impact, making the operation safer and more stable.

[0015] In summary, the beneficial effects of this utility model are as follows: This system has two aeration modes that can be switched as needed. The aeration chamber is located in the water flow convergence area at the bottom of the pool, and the bubbles are released from the bottom, having the longest upward path. This satisfies the aeration water depth while maximizing the contact time between air and water, thereby significantly improving the oxygen dissolution efficiency in the water. By using the drainage outlet of the aquaculture pool and installing aeration discs, the aeration pressure can be controlled within 10 kPa, which not only achieves energy saving but also meets the dissolved oxygen requirements for aquaculture with water depths below 50 cm. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the system's piping connections; Figure 2 This is a schematic cross-sectional view of the water tank. Figure 3 for Figure 2 A magnified view of the local structure at point A; Figure 4 This is a top view of the water tank structure.

[0017] In the diagram: 1. Air suspension aerator; 2. Water storage tank; 3. Water pump; 4. Water tank; 5. Water supply pipe; 6. Aeration pipe; 7. Return water pipe; 8. Grating plate; 9. Aeration cylinder; 10. Filter hole; 11. First aerator; 12. Drainage pipe; 13. Pressure plate; 14. Support plate; 15. Valve; 16. Slope; 17. Water storage area; 18. Second aerator; 19. Slot; 20. Air supply pipe; 21. Air supply pipe. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0020] A water inlet aeration dissolved oxygen system includes a water tank 4, a water storage area 17 for containing water, a slope 16 on the bottom surface of the water tank 4 for guiding water flow to a sinking area, a drain pipe 12 installed at the bottom of the sinking area, a first aerator 11 installed in the sinking area, an aeration pipe 6 connected to the first aerator 11, and the aeration pipe 6 connected to the air outlet pipe of an air suspension aerator 1. (See attached diagram) Figure 1The aeration chamber 15 is located at the bottom of the water flow convergence area of ​​the pool 4. Bubbles are released from the bottom, having the longest upward path, maximizing the contact time between air and water while meeting the required aeration depth. This significantly improves the oxygen dissolution efficiency in the water. The slope 16 facilitates water flow from the pool 4 to the aeration chamber 15 during water changes, and then discharges it through the drain pipe 12. By installing aeration discs at the drain outlet of the aquaculture pool 4, the aeration pressure can be controlled below 10 kPa, achieving energy savings while meeting the dissolved oxygen requirements for aquaculture at water levels below 50 cm.

[0021] See attached document Figure 1 The system also includes a water storage tank 2, which houses a second aerator 18 connected to an air supply pipe 20. The air supply pipe 20 is connected to the air outlet of the air suspension aerator 1. The water storage tank 2 is also connected to the aeration pipe 6. Aeration is completed in the water storage tank 2, avoiding noise disturbance to the fish in the pond 4 and ensuring a quiet and high-quality growth environment. A return water pipe 7 is connected to the water storage tank 2, and a drain pipe 12 is connected to the return water pipe 7. This allows for water circulation from the pond 4 to the water storage tank 2, thus re-aeration of the water in the pond 4. A water supply pipe 5 is installed on the water storage tank 2. Multiple ponds 4 are included, and the aeration pipes 6 of each pond 4 are connected to the water supply pipe 5. A water pump 3 is installed on the water supply pipe 5. Using one water storage tank 2 allows for simultaneous aeration of multiple independent ponds 4, facilitating centralized control and maintenance, and is suitable for handling the fish farming needs of multiple ponds 4. An air supply pipe 21, which connects to the water supply pipe 5, is installed on the air supply pipe 20. Valves 15 for controlling the on / off state of the pipelines are installed on the water supply pipe 5, the air supply pipe 20, and the air supply pipe 21. By combining the opening and closing of the valves 15, the operating mode of the system can be flexibly switched, allowing air to enter only the water storage tank 2, or allowing air to enter the water pool 4 directly for aeration without passing through the water storage tank 2.

[0022] See attached document Figure 4 The water flow convergence area is located at the center of pool 4, and slope 16 is the lowest point of the convergence area. The upflow and circulating flow generated by the aeration chamber 15 located in the center are more evenly distributed throughout pool 4, resulting in a more stable treatment effect. (See attached diagram.) Figure 2 An aeration cylinder 9 is installed on the lower side of the water tank 4, and a grid plate 8 is installed on the upper side of the aeration cylinder 9. The grid plate 8 has filter holes 10 for water and air to pass through. The sinking area extends into the aeration cylinder 9, and a first aerator 11 is installed in the aeration cylinder 9. The aeration pipe 6 passes through the grid plate 8 and is connected to the first aerator 11. The grid plate 8 is responsible for blocking fish and preventing fish or other debris from entering the aeration chamber 15.

[0023] See attached document Figure 3The grating plate 8 comprises two half-plates, which are joined together to form the grating plate 8. The upper edge of the aeration cylinder 9 has a groove 19 for supporting the outer edge of the grating plate 8, and the grating plate 8 is placed in the groove 19. A support plate 14 for supporting the inner edge of the grating plate 8 is installed on the aeration pipe 6, and the support plate 14 is fitted onto the aeration pipe 6. The split design of the grating plate 8 allows for installation and removal without moving the aeration pipe 6, facilitating inspection, replacement, and maintenance of the equipment within the aeration chamber 15, and reducing the difficulty and cost of equipment operation and maintenance. A pressure plate 13 is fitted onto the aeration pipe 6 to clamp the grating plate 8 in conjunction with the support plate 14. The pressure plate 13 is located on the upper side of the grating plate 8, and the mating surfaces of the pressure plate 13 and the aeration pipe 6 have threads that can cooperate with each other. The threaded pressure plate 13 is used in conjunction with the aeration pipe 6 to press the grid plate 8 from above, ensuring that the grid plate 8 will not shift or loosen under the vibration generated by aeration and water flow impact, making the operation safer and more stable.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A water inlet aeration dissolved oxygen system, comprising a water tank (4), characterized in that, The bottom surface of the pool (4) is provided with a slope (16) for guiding water flow to the sinking area. A drain pipe (12) is installed at the bottom of the sinking area. A first aerator (11) is installed in the sinking area. An aeration pipe (6) is connected to the first aerator (11). The aeration pipe (6) is connected to the air outlet pipe of the air suspension aerator (1). It also includes a water storage tank (2), in which a second aerator (18) is installed, and an air supply pipe (20) is connected to the second aerator (18). The air supply pipe (20) is connected to the air outlet of the air suspension aerator (1). The water storage tank (2) is connected to the aeration pipe (6). A return water pipe (7) is connected to the water storage tank (2), and a drain pipe (12) is connected to the return water pipe (7).

2. The influent aeration dissolved oxygen system as described in claim 1, characterized in that, The water storage tank (2) is equipped with a water supply pipe (5), and there are multiple water pools (4). The aeration pipes (6) of the multiple water pools (4) are all connected to the water supply pipe (5).

3. The influent aeration dissolved oxygen system as described in claim 2, characterized in that, The gas supply pipe (21) is installed on the gas supply pipe (20) and is connected to the water supply pipe (5). The water supply pipe (5), the gas supply pipe (20) and the gas supply pipe (21) are all equipped with valves (15) for controlling the opening and closing of the pipeline.

4. The influent aeration dissolved oxygen system as described in claim 1, characterized in that, The water flow convergence area is located in the center of the pool (4), and the slope (16) is the sloping surface with the lowest point in the water flow convergence area.

5. The influent aeration dissolved oxygen system as described in claim 1, characterized in that, An aeration cylinder (9) is installed on the lower side of the water tank (4), and a grid plate (8) is installed on the upper side of the aeration cylinder (9). The grid plate (8) is provided with filter holes (10) for water supply and air passage. The sinking area extends into the aeration cylinder (9). The first aerator (11) is installed in the aeration cylinder (9), and the aeration pipe (6) passes through the grid plate (8) and is connected to the first aerator (11).

6. The influent aeration dissolved oxygen system as described in claim 5, characterized in that, The grating plate (8) includes two half plates, which are spliced ​​together to form the grating plate (8). The upper edge of the aeration cylinder (9) is provided with a slot (19) for supporting the outer edge of the grating plate (8). The grating plate (8) is placed on the slot (19). The aeration pipe (6) is equipped with a support plate (14) for supporting the inner edge of the grating plate (8). The support plate (14) is sleeved on the aeration pipe (6).

7. The influent aeration dissolved oxygen system as described in claim 6, characterized in that, The aeration pipe (6) is fitted with a pressure plate (13) for clamping the grid plate (8) with the support plate (14). The pressure plate (13) is located on the upper side of the grid plate (8). The mating surfaces of the pressure plate (13) and the aeration pipe (6) are provided with threads that can cooperate with each other.

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