A vortex oxygen-increasing device

Abstract

The present application belongs to the technical field of water treatment equipment, and particularly relates to a vortex oxygenation device, which comprises: a water inlet disc located in a reservoir and below the water surface, wherein a water inlet hole is formed in the middle of the water inlet disc; a water inlet cylinder fixedly installed at the lower part of the water inlet disc and communicated with the water inlet hole; a baffle located in the water inlet cylinder and fixedly connected with the lower part of the water inlet cylinder, wherein a water inlet channel is left between the outer wall of the baffle and the inner wall of the water inlet cylinder; a mounting cylinder fixedly installed at the lower part of the water inlet cylinder, wherein a guide plate in a spiral shape is arranged on the inner wall of the mounting cylinder; an air inlet pipe with the top end exposed above the water surface, wherein the air inlet pipe is fixedly connected with the baffle, and the lower end of the air inlet pipe penetrates through the baffle and is communicated with the mounting cylinder; and a water outlet pipe communicated with a water outlet channel, wherein the water outlet pipe is fixedly connected with the lower end of the mounting cylinder. The purpose is to solve the problem that the content of dissolved oxygen in the water entering the water outlet channel from the reservoir is low.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water treatment equipment, and particularly relates to a vortex oxygenation device. BACKGROUND

[0002] The compliance of dissolved oxygen in water is significantly affected by factors such as temperature, eutrophication, water depth, and photosynthesis. As the temperature rises, the content of dissolved oxygen in water will decrease. Because the increase in temperature will promote the metabolic rate of organisms in water, thereby increasing the consumption of oxygen. At the same time, the increase in temperature will also lead to a decrease in the solubility of gases in water, thereby reducing the content of dissolved oxygen in water. Eutrophication also has a significant impact on the content of dissolved oxygen in water. Eutrophication will lead to the proliferation of microorganisms and algae in water, consuming dissolved oxygen, and at the same time, increasing the turbidity of the water, affecting the photosynthesis of plants in water.

[0003] Photosynthesis has a positive effect on the content of dissolved oxygen in water. Underwater plants produce oxygen through photosynthesis, which is beneficial to the increase of dissolved oxygen in water. Water depth is also a factor affecting the content of dissolved oxygen. The deeper the water, the greater the water pressure. When the water pressure is much greater than the air pressure, the ability of oxygen in the air to penetrate into the water decreases. At the same time, harmful gases produced by the decomposition of organic matter accumulated at the bottom under anaerobic conditions and biological toxins produced by some plankton will consume dissolved oxygen in water, causing harm to aquatic animals.

[0004] In addition, the content of nitrate and nitrite in eutrophic water may exceed the standard, and long-term drinking of such water will have a negative impact on human health. This leads to the fact that the content of dissolved oxygen in deep water is usually relatively low. In freshwater areas, the depth of the water body is not particularly large, but the content of dissolved oxygen in the deep water area is still relatively low.

[0005] In summary, the water quality in the reservoir remains oligotrophic, and the dissolved oxygen in the discharge channel does not meet the standard, mainly because the water comes from the deep water at the bottom of the reservoir, and the content of dissolved oxygen in the water body is relatively low. SUMMARY

[0006] The purpose of the present application is to provide a vortex oxygenation device to solve the problem of low content of dissolved oxygen in the water from the reservoir into the discharge channel.

[0007] To achieve the above technical purpose, the technical scheme adopted by the present application is as follows:

[0008] A vortex oxygenation device, comprising:

[0009] A water inlet disc located in a reservoir and below the water surface, a water inlet hole is formed in the middle of the water inlet disc;

[0010] A water inlet cylinder is fixedly installed at the lower part of the water inlet disc and communicates with the water inlet hole;

[0011] A shielding plate is fixedly connected with the lower part of the water inlet cylinder and is located in the water inlet cylinder. A water inlet channel is left between the outer wall of the shielding plate and the inner wall of the water inlet cylinder.

[0012] A mounting cylinder is fixedly installed at the lower part of the water inlet cylinder. The inner wall of the mounting cylinder is provided with a spiral guide plate.

[0013] An air inlet pipe with a top end exposed to the water surface is fixedly connected with the shielding plate. The lower end of the air inlet pipe penetrates through the shielding plate and communicates with the mounting cylinder.

[0014] A water discharge pipe communicating with the water discharge channel is fixedly connected with the lower end of the mounting cylinder.

[0015] Further limitation, the cross section of the water inlet disc is inclined inward from top to bottom. Such a structure design, through the inclination of the water inlet disc, makes the water body enter the water inlet disc, even with garbage, not to accumulate in the water inlet disc, causing the water body to enter the water inlet cylinder smoothly, and has high practicability.

[0016] Further limitation, the cross section of the guide plate is inclined outward from top to bottom. Such a structure design, through the inclined setting of the guide plate, makes the water flow on the guide plate through the water inlet channel as much as possible, not to overflow from the inner edge of the guide plate, has simple structure, convenient manufacturing and high practicability.

[0017] Further limitation, the mounting cylinder is conical with the upper part large and the lower part small. Such a structure design, through the contraction of the pipe diameter of the lower end of the conical mounting cylinder, makes the air more easily enter the water body and enter the lower water discharge channel with the water body through the water discharge pipe, has high practicability.

[0018] Further limitation, a conical frustum-shaped air distribution disc is installed in the mounting cylinder at the lower end of the air inlet pipe. The side wall of the air distribution disc is provided with a plurality of air distribution holes communicating with the air inlet pipe. The outer contour line of the air distribution disc is inclined inward from top to bottom and the inclination angle is smaller than the inclination angle of the inner wall contour line of the mounting cylinder. Such a structure design, through the conical frustum-shaped air distribution disc for air distribution of the mounting cylinder, makes the air distribution more uniform. At the same time, the difference between the inclination angles of the air distribution disc and the mounting cylinder makes the gap between the air distribution disc and the mounting cylinder gradually decrease from top to bottom, forming a pipeline similar to the pipe diameter reduction, and then making the air easily enter the water body, has high practicability.

[0019] Further limited, the water inlet cylinder is installed with a filtering mechanism above the shielding plate, the filtering mechanism comprises a sleeve and an open-top filter net bag, the top end of the filter net bag is detachably connected with the inner wall of the water inlet hole, the sleeve is fixedly installed on the filter net bag and sleeved on the air inlet pipe, and the top end of the sleeve is higher than the water surface. Such a structure design filters the water entering from the water inlet disc through the filtering mechanism, collects and stores the garbage, can reduce the amount of garbage entering the drainage channel, and can also avoid the problem of blocking the water inlet caused by garbage. The sleeve is used to block the through hole formed on the filter net bag for avoiding the air inlet pipe, to avoid the water flowing out directly through the gap between the through hole and the air inlet pipe, and has high practicability.

[0020] Further limited, the upper end of the filter net bag is in the shape of a truncated cone with the upper end being larger and the lower end being smaller. Such a structure design limits the upper end of the filter net bag, so that a cavity is formed between the middle and lower parts of the filter net bag and the inner wall of the water inlet cylinder, that is, the water in the filter net bag can flow into the water inlet channel smoothly through the side wall of the filter net bag without passing through the bottom of the filter net bag, thereby improving the filtering efficiency of the filter net bag and having high practicability.

[0021] Further limited, the edge of the shielding plate downwardly falls to form a surrounding plate, and the upper end of the guide plate is connected with the lower end of the surrounding plate. Such a structure design increases the height size difference between the edge of the shielding plate and the guide plate through the surrounding plate, so that the water has greater potential energy when flowing into the guide plate along the edge of the shielding plate after being filtered by the filtering mechanism, thereby increasing the flow speed of the water on the guide plate, making the negative pressure in the installation cylinder stronger, and enabling more air to be sucked through the air inlet pipe, and having high practicability.

[0022] Further limited, the lower end surface of the water inlet disc is installed with an air bag, two inclined cables are fixedly installed on the water inlet disc, and the middle section of the drainage pipe is a telescopic hose. Such a structure design cooperates the air bag, the inclined cables and the telescopic hose, so that the vertical height of the top end of the water inlet disc can be raised and lowered with the liquid level of the reservoir, thereby keeping the height of the top end of the water inlet disc from the liquid level of the water body within a stable range, avoiding the problem that the device cannot be used after the liquid level of the reservoir decreases / increases due to drought / rainy weather, and having high practicability.

[0023] Further limited, the air distribution disc is fixedly installed with a sub-pipe, the upper end of the sub-pipe is arranged in the air inlet pipe, the outer diameter of the sub-pipe is smaller than the inner diameter of the air inlet pipe, and the lower end of the sub-pipe is transversely installed with a plurality of air distribution pipes in the drain pipe, and the free end of the air distribution pipe is inwardly inclined from top to bottom. Such structure design, through the cooperation of the sub-pipe, the air distribution pipe and the drain pipe, when the water body passes through the drain pipe, the air distribution pipe blocks the flow of the water body, forming a negative pressure on the lower side of the air inlet pipe, the negative pressure is absorbed from the outside through the inclined free end of the air distribution pipe, further increasing the oxygen content in the water body, thereby further increasing the content of dissolved oxygen in the water body.

[0024] The application adopting the technical scheme has the following advantages:

[0025] 1. Through the cooperation of the water inlet disc, the water inlet cylinder, the shielding plate, the installation cylinder, the spiral guide plate, the air inlet pipe and the drain pipe, the water body entering the installation cylinder through the water inlet disc and the water inlet cylinder is blocked by the shielding plate, so that the water body enters the installation cylinder through the water inlet channel and flows downward along the guide plate while rotating under the action of the spiral guide plate, thereby forming a vortex, and the negative pressure formed by the vortex sucks air from the outside through the air inlet pipe, and then the air enters the drain pipe, so that the water body entering the lower drain channel through the drain pipe is aerated and oxygenated, thereby increasing the content of dissolved oxygen in the water body.

[0026] 2. The lower part of the water inlet cylinder is shielded by the shielding plate, so that the water body diffuses at the guide plate after passing through the water inlet channel, which is equivalent to a sudden increase in pipe diameter, thereby forming a negative pressure, so that more air from the outside can enter the installation cylinder through the air inlet pipe to further increase the content of dissolved oxygen in the water body.

[0027] 3. The contraction of the pipe diameter of the lower end of the conical installation cylinder makes it easier for air to enter the water body and enter the lower drain channel through the drain pipe, which is highly practical.

[0028] 4. The air distribution is more uniform through the air distribution disc in the shape of a truncated cone, and the gap between the air distribution disc and the installation cylinder gradually decreases from top to bottom due to the difference in the inclination angles of the air distribution disc and the installation cylinder, forming a pipeline similar to a reduced pipe diameter, thereby making it easier for air to enter the water body, which is highly practical.

[0029] 5. The filter mechanism filters the water entering from the water inlet disc and collects and stores the garbage, which can reduce the amount of garbage entering the lower drain channel and avoid the problem of clogging the water inlet channel. The sleeve is used to block the through hole on the filter screen to avoid water flowing out through the gap between the through hole and the air inlet pipe, which is highly practical.

[0030] 6. By limiting the upper part of the filter bag, a cavity is formed between the middle and lower part of the filter bag and the inner wall of the water inlet cylinder. This allows the water in the filter bag to flow smoothly into the water inlet channel without having to pass through the bottom of the filter bag, but instead through the side wall of the filter bag, thus improving the filtration efficiency of the filter bag and making it highly practical.

[0031] 7. By increasing the height difference between the edge of the baffle and the guide plate through the enclosure, the water has greater kinetic potential energy when it flows into the guide plate along the edge of the baffle after being filtered by the filtration mechanism. This increases the flow speed of the water on the guide plate, making the negative pressure inside the installation cylinder stronger and allowing more air to be drawn in through the air inlet pipe, which is more practical.

[0032] 8. Through the cooperation of airbags, inclined cables and telescopic hoses, the vertical height of the top of the water inlet plate can be raised and lowered according to the water level of the reservoir. This keeps the height of the top of the water inlet plate from the water surface within a stable range, avoiding the problem of the device becoming unusable due to the drop / rise of the water level in the reservoir caused by drought / rain. It is highly practical.

[0033] 9. Through the cooperation of the auxiliary pipe, the air distribution pipe and the drain pipe, when the water passes through the drain pipe, the air distribution pipe obstructs the flow of the water and forms a negative pressure on the lower side of the air supply pipe. This negative pressure absorbs gas from the outside through the inclined free end of the air distribution pipe, further increasing the oxygen content in the water and thus further increasing the dissolved oxygen content in the water. Attached Figure Description

[0034] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0035] Figure 1 This is a schematic diagram of the structure of an embodiment of the vortex oxygenation device of the present invention;

[0036] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the vortex oxygenation device of the present invention;

[0037] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0038] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0039] Figure 5 This is a schematic diagram of the filtration mechanism in an embodiment of the vortex oxygenation device of the present invention;

[0040] Figure 6 This is a schematic diagram of the structure of the air distribution plate and the auxiliary pipe in an embodiment of the vortex oxygenation device of the present invention;

[0041] The main element symbols are explained as follows:

[0042] Water inlet disc 1, air bag 10, stay cable 11,

[0043] Drain pipe 2,

[0044] Water inlet cylinder 3,

[0045] Shielding plate 4, coaming 40,

[0046] Mounting cylinder 5, guide plate 50, air distribution disc 51, air distribution hole 510, auxiliary pipe 52, air distribution pipe 53,

[0047] Air inlet pipe 6, plugging head 60, blind hole 61, air inlet hole 62,

[0048] Filtering mechanism 7, filter net bag 71, sleeve 72, pull ring 73, auxiliary ring 74. DETAILED DESCRIPTION

[0049] The application will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that similar or identical parts are denoted by the same reference numerals in the drawings or description, and the implementation not shown or described in the drawings is in a form known to those skilled in the art. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "back", etc., are only the directions of the drawings and are not intended to limit the protection scope of the application.

[0050] As shown in Figures 1-6 , a vortex oxygenation device of the application comprises:

[0051] A water inlet disc 1 located in a reservoir and below the water surface, a water inlet hole being formed in the middle of the water inlet disc 1;

[0052] A water inlet cylinder 3 fixedly installed at the lower part of the water inlet disc 1 and in communication with the water inlet hole;

[0053] A shielding plate 4 located in the water inlet cylinder 3 and fixedly connected with the lower part of the water inlet cylinder 3, a water inlet channel being left between the outer wall of the shielding plate 4 and the inner wall of the water inlet cylinder 3;

[0054] A mounting cylinder 5 fixedly installed at the lower part of the water inlet cylinder 3, the inner wall of the mounting cylinder 5 being provided with a guide plate 50 in a spiral shape;

[0055] An air inlet pipe 6 with a top end exposed above the water surface, the air inlet pipe 6 being fixedly connected with the shielding plate 4 and in communication with the mounting cylinder 5 through the shielding plate 4 at the lower end;

[0056] A drain pipe 2 in communication with a lower drain channel, the drain pipe 2 being fixedly connected with the lower end of the mounting cylinder 5.

[0057] The cross section of the water inlet disc 1 is inclined inward from top to bottom. In fact, the water inlet disc 1 can also be horizontally arranged according to actual conditions. In the embodiment, the inclination of the water inlet disc 1 can prevent garbage from piling up in the water inlet disc 1 when the water enters the water inlet disc 1, so that the water can smoothly enter the water inlet cylinder 3, and the practicability is high.

[0058] The cross section of the guide plate 50 is inclined outward from top to bottom. In fact, vertical baffles can be arranged on the inner wall of the guide plate 50 according to actual conditions, that is, the guide plate 50 is arranged in an L-shaped end face to guide the water flow. In the embodiment, the inclined arrangement of the guide plate 50 can make the water flow on the guide plate 50 as much as possible, so as not to overflow from the inner edge of the guide plate 50, the structure is simple, the manufacturing is convenient, and the practicability is high.

[0059] The mounting cylinder 5 is in a conical shape with a large upper end and a small lower end. In fact, the mounting cylinder 5 can also be a straight cylinder according to actual conditions. In the embodiment, the conical shape of the lower end of the mounting cylinder 5 can make the air more easily enter the water body and enter the lower water discharge channel with the water body through the water discharge pipe 2, and the practicability is high.

[0060] A gas distribution disc 51 in a frustum shape is arranged at the lower end of the air inlet pipe 6 in the mounting cylinder 5. The side wall of the gas distribution disc 51 is provided with a plurality of gas distribution holes 510 in communication with the air inlet pipe 6. The outer contour line of the gas distribution disc 51 is inclined inward from top to bottom, and the inclination angle is smaller than the inclination angle of the inner wall contour line of the mounting cylinder 5. The gas distribution disc 51 in a frustum shape is used to distribute air to the mounting cylinder 5, so that the air distribution is more uniform. At the same time, the difference between the inclination angles of the gas distribution disc 51 and the mounting cylinder 5 makes the gap between the gas distribution disc 51 and the mounting cylinder 5 gradually decrease from top to bottom, forming a pipe with a gradually reduced diameter, so that the air can easily enter the water body, and the practicability is high.

[0061] A filter mechanism 7 is arranged above the shielding plate 4 in the water inlet cylinder 3. The filter mechanism 7 includes a sleeve 72 and an open-top filter net bag 71. The top end of the filter net bag 71 is detachably connected to the inner wall of the water inlet hole. The sleeve 72 is fixedly arranged on the filter net bag 71 and sleeved on the air inlet pipe 6. The top end of the sleeve 72 is higher than the water surface. The filter mechanism 7 is used to filter the water entering from the water inlet disc 1 and collect and store the garbage, so as to reduce the amount of garbage entering the lower water discharge channel, and avoid the problem of blocking the water inlet channel caused by the garbage. The sleeve 72 is used to block the through hole in the filter net bag 71 for avoiding the air inlet pipe 6, so as to avoid the water flowing out through the gap between the through hole and the air inlet pipe 6, and the practicability is high.

[0062] The upper end of the filter net bag 71 is in the shape of a truncated cone with the upper end larger than the lower end. By limiting the upper end of the filter net bag 71, a cavity is formed between the lower middle of the filter net bag 71 and the inner wall of the water inlet cylinder 3, that is, the water in the filter net bag 71 can flow into the water inlet channel smoothly through the side wall of the filter net bag 71 without passing through the bottom of the filter net bag 71, thereby improving the filtering efficiency of the filter net bag 71 and having high practicability.

[0063] The edge of the shielding plate 4 is downwardly lowered to form a surrounding plate 40, and the upper end of the guide plate 50 is connected to the lower end of the surrounding plate 40. By increasing the height difference between the edge of the shielding plate 4 and the guide plate 50 through the surrounding plate 40, the water has greater potential energy when flowing along the edge of the shielding plate 4 into the guide plate 50 after being filtered by the filtering mechanism 7, thereby increasing the flow speed of the water on the guide plate 50, making the negative pressure in the installation cylinder 5 stronger, and enabling more air to be sucked through the air inlet pipe 6, and having high practicability.

[0064] The top end of the air inlet pipe 6 is fixedly provided with a plug head 60, the lower end surface of the plug head 60 is provided with a blind hole 61, and the side wall of the plug head 60 is provided with a plurality of air inlet holes 62 which are in communication with the blind hole 61. By matching the plug head 60, the blind hole 61 and the air inlet hole 62, the top end of the air inlet pipe 6 is closed to avoid that the external garbage directly falls into the air inlet pipe 6 under the action of gravity; and by arranging the screw air inlet hole 62, the garbage with large volume cannot enter the air inlet pipe 62 smoothly without changing the total air inlet area of the air inlet, thereby avoiding the problem of clogging of the air inlet pipe 6; at the same time, by using the blind hole 61 and the air inlet hole 62, the air inlet pipe 6 is in communication with the external air, and the air can enter the air inlet pipe 6 smoothly, and has high practicability.

[0065] The top end of the filtering mechanism 7 is fixedly provided with a pull ring 73, the pull ring 73 is clamped on the plug head 60, and the top end of the pull ring 73 is fixedly provided with a secondary ring 74. By arranging the pull ring 73 and the secondary ring 74, when the filtering mechanism 7 is loaded with too much garbage, the secondary ring 74 can be pulled upward to drive the filtering mechanism 7 to separate from the water inlet cylinder 3, and then the garbage can be dumped, and the use is more convenient.

[0066] The lower end surface of the water inlet disc 1 is provided with an air bag 10, two inclined cables 11 are fixedly arranged on the water inlet disc 1, and the middle section of the drain pipe 2 is a telescopic hose. By matching the air bag 10, the inclined cable 11 and the telescopic hose, the vertical height of the top end of the water inlet disc 1 can be raised and lowered with the liquid level of the reservoir, thereby keeping the height of the top end of the water inlet disc 1 from the liquid level of the water body within a stable range, avoiding the problem that the device cannot be used when the liquid level of the reservoir decreases / increases due to drought / rainy weather, and having high practicability.

[0067] The air distribution disc 51 is fixedly provided with a sub-pipe 52, the upper end of the sub-pipe 52 is arranged in the air inlet pipe 6, the outer diameter of the sub-pipe 52 is smaller than the inner diameter of the air inlet pipe 6, and the lower end of the sub-pipe 52 is transversely provided with a plurality of air distribution pipes 53 in the drain pipe 2, and the free ends of the air distribution pipes 53 are inclined inward from top to bottom. Through the cooperation of the sub-pipe 52, the air distribution pipe 53 and the drain pipe 2, when the water body passes through the drain pipe 2, the air distribution pipe 53 blocks the flow of the water body, a negative pressure is formed on the lower side of the air distribution pipe 53, the negative pressure is absorbed from the outside through the inclined free end of the air distribution pipe 53, the oxygen content in the water body is further increased, and the content of dissolved oxygen in the water body is further increased.

[0068] In the embodiment, before use, the device is placed in a reservoir, the air bag 10 is inflated, the top end of the water inlet disc 1 is located at a certain distance below the water body in the reservoir, the end of the drain pipe 2 is communicated with the lower drain channel, and the free end of the cable-stayed cable 11 is fixed to the ground or the bottom of the reservoir.

[0069] In use, the water in the reservoir enters the filter net pocket 71 of the filter mechanism 7 through the water inlet from the water inlet disc 1, the water body is filtered by the filter net pocket 71, the garbage is left in the filter net pocket 71, the water body enters the installation cylinder 5 through the water inlet channel between the shielding plate 4 and the water inlet cylinder 3, and under the action of the spiral guide plate 50, the water body flows downward along the guide plate 50 while rotating, so that a vortex is formed, the negative pressure formed by the vortex sucks the air outside through the air inlet pipe 6, and then the air enters the drain pipe 2, so that the water body entering the lower drain channel through the drain pipe 2 is aerated and oxygenated, and the content of dissolved oxygen in the water body is increased.

[0070] At the same time, the lower part of the water inlet cylinder 3 is shielded by the shielding plate 4, so that the water body diffuses at the guide plate 50 after passing through the water inlet channel, the pipe diameter is suddenly increased, a negative pressure is formed, more air outside can enter the installation cylinder 5 through the air inlet pipe 6 to contact the water body, and the content of dissolved oxygen in the water body is further increased.

[0071] When the water body enters the drain pipe 2, the air distribution pipe 53 blocks the flow of the water body, a negative pressure is formed on the lower side of the air distribution pipe 53, the negative pressure is absorbed from the outside through the inclined free end of the air distribution pipe 53, the oxygen content in the water body is further increased, and the content of dissolved oxygen in the water body is further increased.

[0072] After the water body is oxygenated in the installation cylinder 5, the water body flows into the lower drain channel through the drain pipe 2.

[0073] The vortex oxygenation device provided by the application is described in detail. The description of the specific embodiments is only used to help understand the method of the application and the core idea. It should be pointed out that, for those skilled in the art, without departing from the principle of the application, the application can be improved and modified, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. A vortex oxygenation device, characterized by: The utility model provides a water inlet disc (1) is located in the reservoir, and is located below the water surface, the middle part of water inlet disc (1) is equipped with water inlet hole, water inlet cylinder (3) is fixedly installed in the lower part of water inlet disc (1) and is communicated with water inlet hole, the baffle (4) is located in water inlet cylinder (3) and is fixedly connected with the lower part of water inlet cylinder (3), and the outer wall of baffle (4) is left with the water inlet channel between the inner wall of water inlet cylinder (3), installation cylinder (5) is fixedly installed in the lower part of water inlet cylinder (3), and the inner wall of installation cylinder (5) is equipped with the guide plate (50) of spiral shape, the air inlet pipe (6) of top end is exposed to the water surface, and the air inlet pipe (6) is fixedly connected with baffle (4), and the lower end of air inlet pipe (6) passes through baffle (4) and is communicated with installation cylinder (5), the drain pipe (2) is communicated with the lower water channel, and the drain pipe (2) is fixedly connected with the lower end of installation cylinder (5), the installation cylinder (5) is big in the upper part and small in the lower part and is conical, the lower end of air inlet pipe (6) is installed in installation cylinder (5) and is equipped with the gas distribution disc (51) of frustum shape, the side wall of gas distribution disc (51) is equipped with a plurality of gas distribution holes (510) communicated with air inlet pipe (6), and the outer contour line of gas distribution disc (51) is inclined from top to bottom and is smaller than the inclination angle of the inner wall contour line of installation cylinder (5), the edge of baffle (4) is formed into the enclosing board (40) by falling down, and the upper end of guide plate (50) is connected with the lower end of enclosing board (40), the lower end surface of water inlet disc (1) is installed with air bag (10), two inclined cables (11) are fixedly installed on water inlet disc (1), and the middle segment of drain pipe (2) is flexible hose. The cross section of water inlet disc (1) is inclined from top to bottom. The cross section of guide plate (50) is inclined from top to bottom. The filter mechanism (7) is installed above baffle (4) in water inlet cylinder (3), and the filter mechanism (7) comprises sleeve (72) and filter net bag (71) with open upper end, the top end of filter net bag (71) is detachably connected with the inner wall of water inlet hole, the sleeve (72) is fixedly installed on filter net bag (71) and is sleeved on air inlet pipe (6), and the top end of sleeve (72) is higher than the water surface. The top end of filter net bag (71) is frustum shape with the upper part being large and the lower part being small. The vice pipe (52) is fixedly installed in gas distribution disc (51), the upper end of vice pipe (52) is arranged in air inlet pipe (6), the outer diameter size of vice pipe (52) is smaller than the inner diameter size of air inlet pipe (6), a plurality of gas distribution pipes (53) are transversely installed in drain pipe (2) at the lower end of vice pipe (52), and the free end of gas distribution pipe (53) is inclined from top to bottom. ​ ​ ​ ​ ​ 2. The vortex oxygenation device of claim 1, wherein: ​ 3. The vortex oxygenation device of claim 1, wherein: ​ 4. The vortex oxygenation device of claim 1, wherein: ​ 5. A vortex oxygenation device according to claim 4, characterised in that: ​ 6. The vortex oxygenation device of claim 1, wherein: ​

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