A method for increasing oxygen in a body of water

Abstract

The application discloses a water body oxygenation method, which can improve the oxygen dissolving utilization rate of oxygen-containing gas in water, and reduce the oxygen dissolving cost and sewage treatment cost. The water body oxygenation structure comprises a buckling and sealing structure used for being buckled in a water body, the buckling and sealing structure comprises a gas containing wall in an annular structure, a gas containing top is arranged at a top opening of the gas containing wall, a support body is arranged at the bottom of the gas containing wall, the support body is arranged in the circumferential direction of the gas containing wall, a water passing hole is arranged on the support body, a gas escaping pipe is arranged on the gas containing top, and the gas escaping pipe is open at both ends. The method comprises the following steps: arranging the buckling and sealing structure in a water containing body, fixing the support body at the bottom of the water containing body, introducing oxygen-containing gas into the bottom of a water body space surrounded by the buckling and sealing structure, mixing the oxygen-containing gas with the water body to form bubbles, and rising the bubbles, and under the action of the gas containing top, the water body is oxygenated when the bubbles rise to the gas containing top.

Description

Technical Field

[0001] This invention relates to the field of dissolved oxygen technology in water, and more particularly to a method for oxygenating water. Background Technology

[0002] In aquaculture, oxygenation is typically achieved through surface or bottom aeration to meet the oxygen requirements of aquatic organisms. Surface aeration usually only increases dissolved oxygen at the water's surface, resulting in high energy consumption and failing to meet the oxygen needs of the middle and bottom water bodies. Bottom aeration involves introducing oxygen-containing gas into the bottom of the water, which rises as bubbles. Due to the rapid rise of these bubbles, the injected oxygen-containing gas remains in the water for a short time, quickly escaping to the surface with only a small amount of oxygen dissolving into the water, leading to low dissolved oxygen utilization. To improve dissolved oxygen efficiency and increase the contact area between the bubbles and the water, it is necessary to increase the input pressure of the oxygen-containing gas to form smaller bubbles, which significantly increases equipment energy consumption and electricity costs. Similarly, in the dissolved oxygen aeration stage of wastewater treatment, bottom aeration is usually used to oxygenate the water, allowing aerobic nitrifying bacteria to degrade organic matter. The rising bubbles generated by aeration also stir the water, suspending the pollutants at the bottom and exposing them to oxygen, thus accelerating decomposition and reducing sedimentation. However, the aeration process also suffers from the aforementioned problems: the bubbles rise quickly, the oxygenated gas remains in the water for a short time, and it quickly escapes to the surface, resulting in only a small amount of oxygen dissolving into the water, leading to low dissolved oxygen utilization. Furthermore, the rising bubbles need to overcome gravity to agitate the water and prevent sludge settling, requiring a continuous injection of a larger quantity and higher pressure of oxygenated gas, which increases the power consumption of the equipment and the cost of wastewater treatment. Summary of the Invention

[0003] One of the objectives of this invention is, at least, to provide a water oxygenation method that addresses the problems existing in the prior art, effectively improving the dissolved oxygen utilization rate of oxygen-containing gas in water and reducing dissolved oxygen costs and wastewater treatment costs.

[0004] To achieve the above objectives, the technical solution adopted by the present invention includes the following aspects.

[0005] A water oxygenation method employs a water oxygenation structure, the water oxygenation structure including a sealing structure, the sealing structure including an annular air-containing wall, an air-containing top at the top opening of the air-containing wall, a support body at the bottom of the air-containing wall, the support body being arranged circumferentially along the air-containing wall, a water passage hole on the support body, and an escaping pipe on the air-containing top, the escaping pipe being open at both ends; The water oxygenation method includes: The sealing structure is installed in the water-filled body, so that the support body is fixed to the bottom of the water-filled body; Oxygen-containing gas is introduced into the bottom of the water space enclosed by the sealing structure. The oxygen-containing gas mixes with the water and rises in the form of bubbles, causing the oxygen-containing gas to dissolve in the water. When the bubbles rise to the top of the gas container, the top of the gas container blocks some of the bubbles from rising. After some of the bubbles at the bottom of the top of the gas container burst, the oxygen-containing gas dissolves into the water.

[0006] Preferably, the support extends downward from the bottom of the gas-containing wall, and a plurality of water passage holes are evenly opened in the circumferential direction of the support; or the support is a support column, and a plurality of support columns are evenly arranged in the circumferential direction of the gas-containing wall, with the top of the support column connected to the bottom of the gas-containing wall, and water passage holes formed between adjacent support columns.

[0007] Preferably, the plurality of vent pipes are evenly arranged on the top of the gas container, the bottom height of the vent pipes is higher than the bottom height of the gas container wall, and the top height of the vent pipes is not lower than the bottom height of the top of the gas container.

[0008] Preferably, before setting the sealing structure in the water body, a water flow disturbance mechanism is set on the sealing structure. The process of setting the water flow disturbance mechanism includes: setting a stirring head on the rotating shaft, making the top of the rotating shaft vertically pass through the top of the gas container, making the stirring head located inside the sealing structure, connecting the motor to the top of the rotating shaft, and fixing the motor to the top of the gas container.

[0009] Preferably, when placing the sealing structure into the water body, the multi-layer sealing structure is arranged sequentially from bottom to top. During the arrangement process, a stirring head is installed at the bottom of the rotating shaft, and the top of the rotating shaft passes through the bottom sealing structure from bottom to top. Then, a stirring head is installed on the rotating shaft at the position corresponding to the space of the next layer of sealing structure, and the top of the rotating shaft passes through the next layer of sealing structure from bottom to top. After the bottom of the next layer of sealing structure is connected to the top of the already arranged sealing structure, the arrangement of the stirring head and the next layer of sealing structure is repeated until the top layer of sealing structure is completed. Then, a motor is connected to the top of the rotating shaft and fixed to the top of the air-filled top of the top layer of sealing structure.

[0010] Preferably, during the process of introducing oxygen-containing gas into the bottom of the water space enclosed by the sealing structure, a water flow disturbance mechanism is used to agitate the water.

[0011] Preferably, each layer of the sealing structure has a drain pipe on the top of the gas container. The drain pipe is open at both ends and vertically installed. The bottom of the drain pipe is lower than the bottom of the gas pipe, the top of the drain pipe is not lower than the bottom of the gas container, and the diameter of the drain pipe is larger than the diameter of the gas pipe.

[0012] Preferably, before setting the sealing structure, an aerator is installed at the preset setting position of the sealing structure, so that the aerator is connected to the second end of the air supply pipe, and the first end of the air supply pipe is led out of the water body and connected to the blower outside the water body; when setting the sealing structure, the sealing structure covers the aerator.

[0013] Preferably, when oxygen-containing gas is introduced into the bottom of the water space enclosed by the sealing structure, a blower is used to introduce oxygen-containing gas into the aerator, which causes the oxygen-containing gas to be cut into bubbles in the water.

[0014] Preferably, the oxygen content in the water space enclosed by the sealing structure is collected in real time, and the oxygen supply is adjusted based on the oxygen content data; when the oxygen supply is increased or decreased, the working state of the blower is controlled to increase or decrease the air supply; when the water disturbance intensity is increased or decreased, the working state of the motor is controlled to increase or decrease the water disturbance intensity.

[0015] In summary, by adopting the above technical solution, the present invention has at least the following beneficial effects: By setting up a sealing structure, the sealing structure includes a ring-shaped air-containing wall with an air-containing top at the top and a support body at the bottom. The support body is arranged around the circumference of the air-containing wall and has water passage holes. An escaping pipe is located on the air-containing top, with openings at both ends. When the sealing structure is inverted and placed into a water-filled body, the water in the water-filled body and the water in the sealing structure are connected through the water passage holes on the support body. The bottom of the escaping pipe is in contact with the water surface in the air-containing wall, forming an air chamber between the water surface and the air-containing top. The water surface in the air-containing wall is at the same height as the water surface in the water-filled body. When oxygen-containing gas is introduced into the bottom of the water body within the space enclosed by the air-containing wall, the oxygen-containing gas rises in the water body in the form of bubbles, and some bubbles escape through the escaping pipe. Upon reaching the water surface, some bubbles burst, and the oxygen-containing gas within them accumulates in the gas chamber, preventing it from directly escaping to the outside air. This accumulation increases the pressure within the chamber and extends the contact time between the oxygen-containing gas and the water surface, thus increasing the dissolved oxygen content. Compared to directly introducing oxygen-containing gas from the bottom of the water body, where bubbles rise quickly and burst at the surface, resulting in low dissolved oxygen efficiency and high energy consumption due to the need for continuous gas supply, this sealing structure within the water body improves dissolved oxygen efficiency, reduces the amount of oxygen gas introduced, lowers energy consumption, and reduces dissolved oxygen costs.

[0016] Setting up a multi-layered sealing structure according to the water depth can further increase the residence time of oxygen-containing gas in the water and increase the contact area between oxygen-containing gas and water, thereby significantly improving dissolved oxygen utilization and efficiency. The introduced oxygen-containing gas can also retain dissolved oxygen at the bottom of the water body, avoiding oxygen deficiency at the bottom and middle of the water body. In aquaculture, it can increase the water depth, realize the effect of raising large fish in deep water and raising more fish per unit water area, and improve aquaculture efficiency.

[0017] In the aeration stage of wastewater treatment, dissolved oxygen can be provided at different depths in the aerobic tank. By setting up a horizontal swirling disturbance mechanism to agitate the water and suspend the sludge, the water movement can be changed from the vertical flow movement that resists gravity to horizontal swirling movement, which allows the pollutants in the water to be suspended in the water for microbial decomposition. This significantly reduces the energy consumption of moving the water while ensuring that dissolved oxygen exchange can take place at different depths in the aerobic tank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a water oxygenation structure according to an exemplary embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the gas-bearing top plane of the water oxygenation structure, an exemplary embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of another water oxygenation structure according to an exemplary embodiment of the present invention.

[0021] Figure 4 yes Figure 3 A schematic diagram of the water aeration structure in use.

[0022] Figure 5 This is a schematic diagram of the usage state of another water oxygenation structure, which is an exemplary embodiment of the present invention.

[0023] Figure 6 yes Figure 5 A schematic diagram of the gas-bearing top plane of the water body oxygenation structure.

[0024] Figure 7 This is a schematic diagram of a water oxygenation device according to an exemplary embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of a water oxygenation system according to an exemplary embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of a water oxygenation device according to another exemplary embodiment of the present invention.

[0027] Figure 10 This is a schematic diagram of the arrangement of multiple delivery pipelines.

[0028] Figure 11 This is a flowchart illustrating the water oxygenation process of an exemplary embodiment of the present invention.

[0029] The diagram is labeled as follows: 1-Sealing structure, 11-Air chamber wall, 12-Air chamber top, 120-Reinforcing rib, 121-Rotating shaft hole, 13-Support body, 130-Water passage hole, 14-Air vent pipe, 15-Air chamber, 16-Water vent pipe, 2-Water flow disturbance mechanism, 21-Rotating shaft, 22-Agitator head, 23-Motor, 24-Water turbulence paddle, 3-Water container, 4-Water surface, 5-Fan, 6-Air supply pipe, 7-Aerator, 8-Hopper, 9-Feeding switch, 10-Air pump, A-Conveying pipe, B-Air inlet pipe. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, so that the objectives, technical solutions, and advantages of the present invention will be clearer. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0031] refer to Figure 1 The water oxygenation structure of an exemplary embodiment of the present invention includes a sealing structure 1, which includes an annular air-containing wall 11 (the figure shows the unfolded form of the annular air-containing wall). The air-containing wall 11 has a top opening and a bottom opening. An air-containing top 12 is provided at the top opening of the air-containing wall 11. A support body 13 is provided at the bottom of the air-containing wall 11. The support body 13 is arranged circumferentially along the air-containing wall 11. A water passage hole 130 is provided on the support body 13. The air-containing top 12 is arranged perpendicular to the air-containing wall 11 and is used to seal the top opening of the air-containing wall 11. An escaping pipe 14 is provided on the air-containing top 12. The escaping pipe 14 is open at both ends.

[0032] After the sealing structure 1 is placed upside down into the water-containing body 3 (such as a fish tank, pond, etc.), (in combination with...) Figure 4(Explanation) The bottom of the support body 13 contacts the bottom of the water-containing body 3. The water in the water-containing body 3 and the water in the sealing structure 1 are connected through the water passage 130 on the support body 13. That is, the water in the water-containing body 3 can enter the sealing structure 1 through the water passage 130, and the water in the sealing structure 1 can enter the water-containing body through the water passage 130. The bottom of the vent pipe 14 contacts the water surface 4 in the air-containing wall 11. The water surface 4 can just touch the bottom of the vent pipe 14, or it can be slightly higher than the vent pipe. At the bottom of 14 (e.g., 1~10mm), an air chamber 15 is formed between the water surface 4 and the top of the air-containing container 12. The water surface 4 in the air-containing wall 11 is at the same height as the water surface 4 in the water-containing body 3. When oxygen-containing gas (pure oxygen, air, etc.) is introduced into the bottom of the water body within the space enclosed by the air-containing wall 11, the oxygen-containing gas rises in the water body in the form of bubbles. Some bubbles escape to the water surface through the vent pipe 14, and some bubbles burst at the water surface. The oxygen-containing gas in the bubbles will accumulate in the air chamber 15 to prevent it from entering the outside air environment. As more and more oxygen-containing gas accumulates in the gas chamber 15, it increases the pressure in the gas chamber 15 and increases the contact time between the oxygen-containing gas in the gas chamber 15 and the water surface 4, thereby increasing the dissolved oxygen content of the water. When the oxygen-containing gas in the gas chamber 15 continues to increase, causing the pressure in the gas chamber 15 to increase further, it will press down the water in the gas-container wall 11, causing more oxygen-containing gas to dissolve in the water. When the water level in the gas-container wall 11 decreases, the oxygen-containing gas in the gas chamber 15 will escape through the escaping pipe 14 and enter the outside air environment through the gas top 12. By controlling the time and amount of oxygen-containing gas introduced, the dissolved oxygen content of the water can be further increased. Compared with the method of directly introducing oxygen-containing gas into the water at the bottom of the water-containing body 3 without the sealing structure 1, setting the sealing structure 1 in the water-containing body 3 not only increases the dissolved oxygen rate of the water but also reduces energy consumption. The dissolved oxygen water in the space enclosed by the gas-container wall 11 will also enter the water-containing body through the water passage 130 for water exchange, thereby increasing the oxygen content of the water in the entire water-containing body.

[0033] The cross-section of the gas-containing wall 11 includes, but is not limited to, circles, ellipses, polygons, etc., and the cross-sectional shape of the container wall 11 can be set according to specific needs. The cross-sectional shape of the gas-containing roof 12 includes, but is not limited to, circles and ellipses (see reference). Figure 2 The gas-filled top 12 and the gas-filled wall 11 are preferably integrally formed (or detachably connected). The number and position of the vent pipes 14 on the gas-filled top 12 are arranged as needed. In application, multiple vent pipes 14 can be evenly arranged on the gas-filled top 12. The bottom of the vent pipe 14 extends downward from the bottom of the gas-filled top 12. The bottom height of the vent pipe 14 is higher than the bottom height of the gas-filled wall 11, and the top height of the vent pipe 14 is not lower than the bottom height of the gas-filled top 12. The top and / or bottom of the gas-filled top 12 can also be provided with reinforcing ribs 120 to strengthen the structural strength of the gas-filled top 12.

[0034] The support body 13 can be formed by extending downward from the bottom of the air-bearing wall 11. In this case, multiple water holes 130 can be evenly opened around the support body 13. The bottom of each water hole 130 can be on the same plane as the bottom of the support body 13, and the bottom height of each water hole 130 can be higher than the bottom of the support body 13. The support body 13 can also be a support column. Multiple support columns are evenly arranged around the air-bearing wall 11, and the top of the support column is connected to the bottom of the air-bearing wall 11 (integral molding or detachable connection). In this case, water holes 130 are formed between adjacent support columns.

[0035] The sealing structure 1 is also equipped with a water flow disturbance mechanism 2, which can agitate the water in the sealing structure 1, increase the contact between the water and air bubbles, and further increase the dissolved oxygen content; (Reference) Figure 3 The water flow disturbance mechanism 2 includes a rotating shaft 21, a stirring head 22, and a motor 23. The motor 23 is located on the top of the gas-filled top 12 and can be fixed to the top of the gas-filled top by a motor bracket (not shown in the figure). The rotating shaft 21 is vertically arranged, and its bottom passes through the gas-filled top 12 and extends downward (it can extend into the space enclosed by the gas-filled wall 11 or into the space enclosed by the support body 13). The top of the rotating shaft 21 is connected to the output shaft of the motor 23. The stirring head 22 is fixedly or detachably connected to the rotating shaft 21, and the stirring head 22 is equipped with a water-dispersing paddle 24. When the motor 23 is working, the stirring head 22 can rotate, thereby disturbing the water in the area enclosed by the sealing structure 1, increasing the contact between the oxygen-containing gas and the water, and improving the dissolved oxygen effect.

[0036] In the oxygen-consuming treatment stage of wastewater treatment, during the process of filling the water body within the space enclosed by the sealing structure 1 with oxygen-containing gas, the water flow disturbance mechanism 2 can also agitate the water body, causing it to swirl horizontally. This causes the pollutants in the water body to be suspended in the water, promoting the decomposition of the pollutants. Compared with the aeration method that causes the water body to move up and down, the water flow disturbance mechanism 2 agitates the water body, avoiding the need to continuously fill a larger quantity and higher pressure of oxygen-containing gas to cause the water body to move up and down, reducing equipment energy consumption, and thus reducing wastewater treatment costs.

[0037] During application, one or more layers of sealing structure 1 can be set according to the water depth. Multiple layers of sealing structure 1 can increase the dissolved oxygen content in different depth areas of the water, thus improving the dissolved oxygenation effect. When setting multiple layers of sealing structure 1, refer to... Figure 5 , Figure 6 The multi-layer sealing structure 1 is arranged sequentially from bottom to top. In adjacent layers of sealing structure 1, the bottom of the support body 13 of the upper layer sealing structure 1 is integrally connected to or detachably connected to the top of the air-bearing top 12 of the lower layer sealing structure 1. At this time, the height of the water surface 4 can be located at the height of the bottom layer, a middle layer or the top layer of the sealing structure 1. The height of the water surface 4 can be exactly equal to the bottom height of the vent pipe 14 of a certain layer of sealing structure 1, or slightly higher than the bottom height of the vent pipe 14 of a certain layer of sealing structure 1.

[0038] Taking the three-layer sealing structure 1 as an example, the height of the water surface 4 is equal to or slightly higher than the bottom height of the vent pipe 14 of the second layer sealing structure 1. The vent pipes 14 of adjacent layers sealing structures 1 are preferably staggered in the vertical plane. When oxygen-containing gas is introduced into the bottom of the water body within the space enclosed by the bottom layer sealing structure 1, the oxygen-containing gas rises in the water body in the form of bubbles. Some bubbles are blocked from rising by the bottom layer gas-containing top 12, causing the oxygen-containing gas in the bubbles to dissolve in the water body, increasing the dissolved oxygen content of the water body within the space enclosed by the bottom layer gas-containing wall 11. Some bubbles enter the water body within the space enclosed by the second layer sealing structure 1 through the vent pipe 14 of the first layer. After entering the water body within the space enclosed by the second layer sealing structure 1, the first part of the bubbles will pass through the first layer gas-containing top 12. The second-layer vent pipe 14 allows oxygen to enter the outside air environment. After the second part of the bubbles burst at the water surface, the oxygen-containing gas in the bubbles accumulates in the gas chamber 15, preventing it from entering the outside air environment. As more and more oxygen-containing gas accumulates in the gas chamber 15, it increases the pressure in the gas chamber 15 and increases the contact time between the oxygen-containing gas in the gas chamber 15 and the water surface, thereby increasing the dissolved oxygen content of the water. When the oxygen-containing gas in the gas chamber 15 continues to increase, further increasing the pressure in the gas chamber 15, it will press down on the water in the gas container wall 11, causing more oxygen-containing gas to dissolve in the water. When the water level in the second-layer sealing structure 1 decreases, the oxygen-containing gas in the gas chamber 15 will escape through the vent pipe 14 and enter the outside air environment through the gas container top 12. The arrangement of the three-layer sealing structure 1 increases the dissolved oxygen content in different depth areas of the water body, improving the dissolved oxygenation effect. The dissolved oxygen water in the space enclosed by the sealing structure 1 will also enter the water body through the water passage 130 for water exchange, thereby increasing the oxygen content of the water in the entire water body.

[0039] When a multi-layer sealing structure 1 is set, the motor 23 is set at the top of the top air-filled top 12, and the bottom of the rotating shaft 21 extends vertically downward into the bottom sealing structure 1 through the rotating shaft hole 121 on the top air-filled top 12. Each layer of sealing structure 1 can be equipped with a stirring head 22 and a water-disturbing paddle 24 on the corresponding rotating shaft 21 to disturb the water in the area of ​​each layer of sealing structure 1.

[0040] When a multi-layer sealing structure 1 is set, an exhaust pipe 16 (one or more) can also be set on the air-filled top 12 of each layer of sealing structure 1. The exhaust pipe 16 is open at both ends and set vertically. The bottom height of the exhaust pipe 16 is lower than the bottom height of the air-filled pipe 14, and the top height of the exhaust pipe 16 is not lower than the bottom height of the air-filled top 12. After the water oxygenation structure is set in the water body, the bottom of the exhaust pipe 16 extends into the water body. During the operation of the water flow disturbance mechanism 2, the water in the sealing structure 1 is disturbed, and the water in the adjacent layers of sealing structure 1 can be exchanged by flowing up and down through the exhaust pipe 16 (some water can also be exchanged by flowing up and down through the air-filled pipe 14), further improving the dissolved oxygen efficiency. The diameter of the exhaust pipe 16 is larger than the diameter of the air-filled pipe 14 so that the water in the adjacent layers of sealing structure 1 can be exchanged smoothly by flowing up and down through the exhaust pipe 16.

[0041] In application, this invention also provides a water oxygenation device, see reference. Figure 7 The water oxygenation device includes an air pump, which comprises a blower 5 and an air delivery pipe 6. The first end of the air delivery pipe 6 is connected to the blower 5, and the second end extends to the bottom of the space enclosed by the bottom sealing structure 1 (when there are multiple sealing structures). Through the blower 5 and the air delivery pipe 6, oxygen-containing gas can be transported to the water body enclosed by the bottom sealing structure 1 to oxygenate the water. The second end of the air delivery pipe 6 can be connected to an aerator 7, which is set at the bottom of the space enclosed by the bottom sealing structure 1. Through the aerator 7, the oxygen-containing gas comes into contact with the water and turns into bubbles, thereby improving the oxygenation effect. Different aerators can be used depending on the type of water body. For example, when the water body is a fishpond, an aerator can be an aeration bucket, and when the water body is a fish tank, an aerator can be a silica gel aeration disc, air stone, etc.

[0042] Aerator 7, during the aeration process, also drives the water to move up and down, causing impurities to float to the surface. The water flow disturbance mechanism 2 creates swirling currents, preventing impurities from settling. The oxygen in the water enhances the decomposition of impurities by microorganisms, improving wastewater treatment efficiency. In deep-water pond aquaculture, continuous bottom aeration and concentrated bursts of air can replenish oxygen, disrupt the balance of water at different levels, and promote water flow and exchange between different water layers.

[0043] This invention also provides a water oxygenation system, see reference. Figure 8The system includes the aforementioned water oxygenation device and a monitoring and control system. The monitoring and control system includes a data acquisition probe and a display control unit. The data acquisition probe is connected to the display control unit (e.g., electrical connection, communication connection, etc., depending on the actual situation). The display control unit is connected to the fan and motor of the water oxygenation device. The connection between the fan and the sealing structure indicates that the fan is introducing oxygen-containing gas into the sealing structure. The connection between the data acquisition probe and the sealing structure indicates that the data acquisition probe is collecting the oxygen content of the water in the sealing structure. The data acquisition probe can collect the oxygen content of the water in the space enclosed by the sealing structure of the water oxygenation device in real time. The oxygen content data is transmitted to the display control unit for real-time display. The display control unit can also determine whether the oxygen supply needs to be adjusted based on the oxygen content data. When the oxygen supply needs to be adjusted, the display control unit controls the working state of the fan to adjust the air supply. When the water disturbance intensity needs to be adjusted, the display control unit can also control the working state of the motor to adjust the water disturbance intensity. During application, the data acquisition probe can be installed inside the support 13 of the sealing structure or on a certain layer of the air-bearing top 12, so that the data acquisition probe is in contact with the water to collect the oxygen content of the water in the sealing structure.

[0044] During use, fish food can also be placed into the water body enclosed by the sealing structure 1, for reference. Figure 9 The water aeration device also includes a hopper 8 for holding fish feed. The bottom of the hopper 8 is connected to a conveying pipe A. The conveying pipe A extends into the sealing structure 1 through a water passage in the support body 13 of the sealing structure 1. A feeding switch 9 is also provided at the bottom of the hopper 8. An air pump 10 is connected to the conveying pipe A through an air inlet pipe B. Both the air inlet pipe B and the air pump 10 are located above the water surface. When feeding fish, the feeding switch 9 is turned on. After the fish feed in the hopper 8 enters the conveying pipe A, the feeding switch 9 is turned off, and the air pump 10 is turned on. The air pressure injects the fish feed in the conveying pipe A into the water body inside the sealing structure 1. Then, the air pump 10 is turned off, and the fish feed floats to the surface. The working state of the water flow disturbance mechanism 2 is controlled. Through the stirring and disturbance of the water flow by the water flow disturbance mechanism 2, the fish feed is diffused in the water body, making it easier for the fish to eat. By controlling the opening and closing times of the feeding switch 9 and the air pump 10, the fish in the water body can be fed in a timely and quantitative manner, reducing the cost of manual feeding.

[0045] When the water aeration device includes two or more layers of sealing structure 1, two or more delivery pipes A can be installed to add fish feed to the water in each layer of sealing structure 1, as shown in the reference. Figure 10 Each conveying pipe A is connected at its top to the bottom of the hopper 8. Each connection point between the conveying pipe A and the hopper 8 is equipped with a feeding switch 9. Each conveying pipe A is connected to a support 13 of a corresponding fastening structure 1 (in conjunction with...). Figure 9The water passage (as described) extends into the sealing structure 1; each conveying pipe A is connected to a corresponding air intake branch pipe near the top, and each air intake branch pipe is connected to the same main air intake pipe (air intake pipe B), which in turn connects to the air pump 10; since each conveying pipe A is independent and extends into the corresponding layer of the sealing structure, opening the feeding switch 9 on different conveying pipes A can feed the fish in the water of different layers of the sealing structure. During application, the conveying pipes A, air intake branch pipes, and main air intake pipe (air intake pipe B) can all be fixed to the outer wall of the sealing structure 1, or they can be supported by independent brackets. The hopper 8 and the air pump 10 can be fixed to the top of the top sealing structure 1 by brackets, or they can be supported in the water by independent brackets. The support and fixing method of each pipe, hopper, and air pump is determined according to actual needs.

[0046] This invention also provides a method for water oxygenation, which uses the aforementioned water oxygenation structure, with reference to... Figure 11 The method includes the following steps: S1. Set the sealing structure 1 in the water body 3 (such as a pond, fish tank, water tank, aerobic pool); determine the size and number of water aeration structures according to the size of the water body 3 (such as volume, bottom area, etc.). The support body 13 at the bottom of the sealing structure 1 can be fixed to the bottom of the water body 3 (it can be fixed by the weight of the sealing structure itself, or by bolts, buckles, etc., as long as the sealing structure can remain stable in the water), to prevent the buoyancy of the water body from affecting the stability of the sealing structure 1.

[0047] Before setting the sealing structure 1, a water flow disturbance mechanism 2 can also be set on the sealing structure 1. The process includes: after setting the stirring head 22 on the rotating shaft 21, the top of the rotating shaft 21 is made to pass vertically through the gas container top 12, so that the stirring head 22 is located inside the sealing structure 1. Neither the stirring head 22 nor the bottom of the rotating shaft 21 protrudes from the bottom of the support body 13. After connecting the motor 23 to the top of the rotating shaft 21, the motor 23 is fixed to the top of the gas container top 12.

[0048] When setting the sealing structure 1, multiple layers of sealing structures 1 can be set sequentially from bottom to top. The process includes: installing a stirring head 22 at the bottom of the rotating shaft 21, and passing the top of the rotating shaft 21 through the gas-filled top 12 of the bottom layer of the sealing structure 1 from bottom to top; then installing the stirring head 22 on the rotating shaft 21 at the position corresponding to the space of the next layer of sealing structure 1, and passing the top of the rotating shaft 22 through the gas-filled top 12 of the next layer of sealing structure 1 from bottom to top, so that the bottom of the support body 13 of the next layer of sealing structure 1 is connected to the top of the gas-filled top 12 of the already set sealing structure, and repeating the setting of the stirring head 22 and the next layer of sealing structure 1 until the top layer of sealing structure 1 is set up, and then connecting the motor 23 to the top of the rotating shaft 21, so that the motor 23 is fixed to the top of the gas-filled top 12 of the top layer of sealing structure 1.

[0049] Before setting the sealing structure 1, an aerator is set at the preset setting position of the sealing structure 1 in the water body 3, so that the aerator is connected to the second end of the air supply pipe, and the first end of the air supply pipe is led out of the water body 3, so that the first end of the air supply pipe is connected to the blower outside the water body 3; when setting the sealing structure 1, the sealing structure 1 covers the aerator.

[0050] S2. Oxygen-containing gas is introduced into the bottom of the water space enclosed by the sealing structure 1. The oxygen-containing gas mixes with the water and rises in the form of bubbles, thus dissolving the oxygen-containing gas in the water. One implementation method for introducing oxygen-containing gas is to use a blower to introduce oxygen-containing gas into an aerator, which cuts the oxygen-containing gas into bubbles in the water. During the introduction of oxygen-containing gas, the motor 23 of the water flow disturbance mechanism 2 can also be activated. The motor 23 drives the rotating shaft 21 and the stirring head 22 to rotate, causing the stirring head 22 to stir and disturb the water, creating a horizontal swirling flow in the water, which improves the dissolved oxygen effect. The water swirling flow can also suspend the impurities in the water.

[0051] S3. When the bubbles rise to the gas cap 12 of the sealing structure 1, the gas cap 12 blocks some of the bubbles from rising. After some of the bubbles at the bottom of the gas cap 12 burst, the oxygen-containing gas dissolves in the water.

[0052] When the gas-container cap 12 is above the water surface, and when the bottom of the gas-container cap 12 forms a gas chamber with the water surface, after the bubbles burst on the water surface, the oxygen-containing gas in the bubbles accumulates in the gas chamber. The oxygen concentration in the gas chamber gradually increases, creating a concentration difference with the water below the gas chamber. The oxygen in the gas chamber will redissolve back into the water, improving the dissolved oxygen utilization rate. When the oxygen-containing gas in the bubbles continues to accumulate and remain in the gas chamber, the pressure in the gas chamber increases, further increasing the contact time between the oxygen-containing gas in the gas chamber and the water surface, thus increasing the dissolved oxygen content in the water. When the pressure in the gas chamber increases to the point of pressing down on the water, creating a gap between the water surface and the bottom of the vent pipe, the oxygen-containing gas in the gas chamber will enter the vent pipe through the gap between the water surface and the bottom of the vent pipe, and then enter the atmosphere through the vent pipe. When the bottom of the gas-container cap 12 is in contact with the water surface, after the bubbles burst on the water surface at the bottom of the gas-container cap 12, the oxygen-containing gas is blocked by the gas-container cap 12 and rises, thus dissolving in the water, improving the dissolved oxygen utilization rate.

[0053] When a multi-layer sealing structure 1 is used, with some parts of the sealing structure 1 located in the water and others extending above the water surface, for the bottom sealing structure 1, when bubbles rise to the bottom of the gas-containing top 12 of the sealing structure 1, the bubbles are compressed or broken into smaller bubbles by the obstruction of the gas-containing top 12, increasing the gas-liquid contact area and promoting oxygen dissolution. The bubbles at the bottom of the gas-containing top 12 also diffuse outwards along the bottom surface of the gas-containing top 12, further prolonging the residence time of the bubbles in the water and improving the dissolved oxygen utilization rate. The diffused bubbles can enter the water of the next layer of sealing structure 1 through the overflow pipe 14 and overflow pipe 16 on the gas-containing top 12 to dissolve oxygen, improving the dissolved oxygen utilization rate at different depths in the water. For the next layer of sealing structure 1, when the gas-containing top 12 is submerged in the water, the action of bubbles at the gas-containing top 12 of the next layer of sealing structure 1 is the same as that of bubbles at the gas-containing top 12 of the bottom sealing structure 1.

[0054] Before setting the sealing structure 1 into the water body 3, a data acquisition probe can be installed on the gas-filled top 12, container wall 11, or support 13 within the sealing structure 1. When there are multiple layers of sealing structures 1, a data acquisition probe can be installed in one or more layers of sealing structures 1 according to the actual situation. The data acquisition probe is set in the water body 3 along with the sealing structure 1, and is immersed in the water to collect the oxygen content in the water space enclosed by the sealing structure 1 in real time. The oxygen content data is used to determine whether to adjust the oxygen supply. When the oxygen supply is increased or decreased, the display control unit controls the working state of the fan to increase or decrease the air supply. When the water disturbance intensity is increased or decreased, the display control unit controls the working state of the motor to increase or decrease the water disturbance intensity.

[0055] The above description is merely a detailed illustration of specific embodiments of the present invention and is not intended to limit the invention. Various substitutions, modifications, and improvements made by those skilled in the art without departing from the principles and scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for oxygenating water, characterized in that, A water oxygenation structure is adopted, which includes a sealing structure (1). The sealing structure (1) includes an annular air-containing wall (11). An air-containing top (12) is provided at the top of the air-containing wall (11). A support body (13) is provided at the bottom of the air-containing wall (11). The support body (13) is arranged around the air-containing wall (11). A water passage hole (130) is provided on the support body (13). An escaping pipe (14) is provided on the air-containing top (12). The escaping pipe (14) is open at both ends. The water oxygenation method includes: The sealing structure (1) is placed in the water-filled body (3) so that the support body (13) is fixed at the bottom of the water-filled body (3); Oxygen-containing gas is introduced into the bottom of the water space enclosed by the sealing structure (1). The oxygen-containing gas mixes with the water and rises in the form of bubbles, so that the oxygen-containing gas dissolves in the water. When the bubbles rise to the top of the gas container (12), the top of the gas container (12) blocks some of the bubbles from rising. After some of the bubbles at the bottom of the top of the gas container (12) burst, the oxygen-containing gas dissolves in the water.

2. The water oxygenation method according to claim 1, characterized in that, The support (13) extends downward from the bottom of the air-containing wall (11), and a plurality of water passage holes (130) are evenly opened on the circumferential side of the support (13); or the support (13) is a support column, and a plurality of the support columns are evenly arranged along the circumferential side of the air-containing wall (11), with the top of the support column connected to the bottom of the air-containing wall (11), and water passage holes (130) are formed between adjacent support columns.

3. The water oxygenation method according to claim 1, characterized in that, Multiple vent pipes (14) are evenly arranged on the top of the gas container (12). The bottom height of the vent pipe (14) is higher than the bottom height of the gas container wall (11), and the top height of the vent pipe (14) is not lower than the bottom height of the top of the gas container (12).

4. The water oxygenation method according to any one of claims 1 to 3, characterized in that, Before setting the sealing structure (1) in the water body (3), a water flow disturbance mechanism (2) is set on the sealing structure (1). The process of setting the water flow disturbance mechanism (2) includes: setting the stirring head (22) on the rotating shaft (21), making the top of the rotating shaft (21) vertically pass through the gas container top (12), making the stirring head (22) located inside the sealing structure (1), connecting the motor (23) to the top of the rotating shaft (21), and fixing the motor (23) on the top of the gas container top (12).

5. The water oxygenation method according to claim 4, characterized in that, When placing the sealing structure (1) into the water body (3), the multi-layer sealing structure (1) is set from bottom to top. During the setting process, a stirring head (22) is installed at the bottom of the rotating shaft (21), and the top of the rotating shaft (21) passes through the bottom layer sealing structure (1) from bottom to top. Then, a stirring head (22) is installed on the rotating shaft (21) at the position corresponding to the space of the next layer sealing structure (1), and the top of the rotating shaft (21) passes through the next layer sealing structure (1) from bottom to top. After the bottom of the next layer sealing structure (1) is connected to the top of the already set sealing structure (1), the setting of the stirring head (22) and the next layer sealing structure (1) is repeated until the top layer sealing structure (1) is set. Then, a motor (23) is connected to the top of the rotating shaft (21), and the motor is fixed on the top of the gas container top (12) of the top layer sealing structure (1).

6. The water oxygenation method according to claim 4 or 5, characterized in that, During the process of introducing oxygen-containing gas into the bottom of the water space enclosed by the sealing structure (1), the water body is agitated by the water flow disturbance mechanism (2).

7. The water oxygenation method according to claim 5, characterized in that, Each layer of the sealing structure (1) has a water outlet pipe (16) installed on the gas-filled top (12). The water outlet pipe (16) is open at both ends and installed vertically. The bottom height of the water outlet pipe (16) is lower than the bottom height of the gas outlet pipe (14), and the top height of the water outlet pipe (16) is not lower than the bottom height of the gas-filled top (12). The diameter of the water outlet pipe (16) is greater than the diameter of the gas outlet pipe (14).

8. The water oxygenation method according to claim 1, characterized in that, Before setting the sealing structure (1), an aerator is set at the preset setting position of the sealing structure (1) in the water body (3), so that the aerator is connected to the second end of the air supply pipe, and the first end of the air supply pipe is led out of the water body (3), so that the first end of the air supply pipe is connected to the blower outside the water body (3); when setting the sealing structure (1), the sealing structure (1) covers the aerator.

9. The water oxygenation method according to claim 8, characterized in that, When oxygen-containing gas is introduced into the bottom of the water space enclosed by the sealing structure (1), the oxygen-containing gas is introduced into the aerator by a blower, and the aerator cuts the oxygen-containing gas into bubbles in the water.

10. The water oxygenation method according to claim 8, characterized in that, Real-time collection of oxygen content in the water space enclosed by the sealing structure (1), and determination of whether to adjust oxygen supply based on oxygen content data; when increasing or decreasing oxygen supply, control the working state of the blower to increase or decrease air supply; when increasing or decreasing water disturbance intensity, control the working state of the motor to increase or decrease water disturbance intensity.

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