Submerged aeration and agitation device

Abstract

The application discloses a submersible aeration stirring device and relates to the field of submersible aerators, which comprises an air inlet pipe, a box body, an air pump, an aeration stirring assembly and a water outlet pipe. One end of the air inlet pipe is above the water surface. The air pump is connected with the air inlet pipe. A plurality of water inlet pipes are arranged on the surface of the box body. The aeration stirring assembly is arranged at the output end of the water inlet pipes. The aeration stirring assembly comprises four groups of impellers, rotating shafts, rotating rods and aeration stirring motors. The four groups of impellers are arranged in different directions of the rotating shafts. The aeration stirring motors drive the rotating shafts to rotate. The impellers and the rotating shafts are hollow structures. The air pump pumps air into the interiors of the rotating shafts and the impellers. A plurality of air outlet holes are arranged on the upper and lower surfaces of the impellers. The air outlet holes divide the air into small air bubbles to oxygenate the water body. The output end of the aeration stirring assembly is connected with the water outlet pipe. A jet valve is arranged at the output end of the water outlet pipe and is used for controlling the water body in different directions to be jetted to be oxygenated.

Description

Technical Field

[0001] This invention relates to the field of submersible aerators, specifically a submersible aeration and mixing device. Background Technology

[0002] A submersible aerator is a device used for aeration and oxygenation in water treatment processes. A submersible motor drives an impeller, drawing in air and water. The high-speed rotation of the impeller agitates and shears the air to form dissolved air, which is then propelled outwards and diffuses. The impeller's rotation shears the drawn air into tiny bubbles that mix with the water, dissolving atmospheric oxygen in the water and achieving the purpose of aeration and oxygenation. These tiny bubbles have a large surface area and rise slowly, ensuring thorough mixing of water and oxygen. However, simply breaking up and cutting the air with an impeller cannot guarantee the size of the bubbles after cutting, and the dissolved air formation is unstable. Different water qualities also affect the mixing of water and air. Furthermore, traditional submersible aerators often only aerate and propel air in one direction, making it impossible to control the direction of propulsion, which reduces the efficiency of aeration and oxygenation. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a submersible aeration and mixing device to solve the problems that existing submersible aeration and mixing devices cannot ensure air pulverization effect, have low and unstable dissolved air water generation efficiency, and have a single aeration flow direction.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a submersible aeration and stirring device, comprising:

[0005] The box has an air inlet pipe installed on its upper side and an air pump installed inside the box. The air pump is used to draw air into the air inlet pipe. Several water inlet pipes are provided on the surface of the box, and water enters the box through the water inlet pipes.

[0006] An aeration and mixing assembly is placed inside the housing. The aeration and mixing assembly includes four sets of impellers, a rotating shaft, a rotating rod, and an aeration and mixing motor. The four sets of impellers are respectively installed in different directions of the rotating shaft. The aeration and mixing motor drives the rotating shaft to rotate. The impellers and the rotating shaft have a hollow structure inside. An air pump pumps air into the interior of the rotating shaft and impellers. Several air outlets are evenly arranged on the upper and lower surfaces of the impellers. The air outlets divide the air into small bubbles to oxygenate the water and form dissolved air water.

[0007] The outlet pipe is provided at the output end of the aeration and stirring assembly. Several water outlet channels are provided around the outlet pipe. Each water outlet channel includes an inlet and an outlet. Dissolved air water enters from the inlet and flows out from the outlet, aerating and oxygenating water bodies in different directions.

[0008] The support base has the water outlet pipe placed on its upper surface and the aeration and stirring motor placed inside the support base.

[0009] Preferably, one end of the air intake pipe is placed in the air, and a protective cover is installed on the air-exposed end of the air intake pipe. The side of the protective cover is a sealed structure to prevent debris from entering the air intake pipe and affecting the operation of the air pump. The inside of the protective cover is a hollow structure connected to the air intake pipe, and the top surface of the protective cover is a dust filter. Air enters the air intake pipe through the dust filter and the protective cover to prevent the air intake pipe from being contaminated by dust, which could lead to device malfunction.

[0010] Preferably, the water inlet pipe is located on the upper surface of the tank, allowing water to flow into the tank under gravity. The surface of the water inlet pipe is covered with a barrier net to prevent large impurities in the water from entering the tank and affecting the operation of the aeration and mixing components.

[0011] Preferably, the housing and the aeration and stirring assembly form a gas-liquid mixing chamber. The output end of the water inlet pipe faces the upper surface of the impeller. The microbubbles ejected from the air holes on the upper surface of the impeller mix with the water in the gas-liquid mixing chamber. After the high-speed rotation and stirring of the impeller, dissolved air water is formed. The microbubbles ejected from the air holes on the lower surface of the impeller are not only used to further mix the water flowing out of the gas-liquid mixing chamber, but also provide power for the dissolved air water to be ejected from the water outlet pipe, so that the dissolved air water can be sprayed a longer distance and the stirring and oxygenation effect on the water is better.

[0012] Preferably, the water outlet channel sprays water at an angle downwards. This angled downward spraying of the water outlet channel agitates the sludge at the bottom of the pool, effectively stirring the sediment into the water body and improving the efficiency and effect of aeration and oxygenation.

[0013] Preferably, a dissolved oxygen sensor is installed on the surface of the tank. The dissolved oxygen sensor is used to measure the oxygen content in the water. A preset oxygen content value is set in the dissolved oxygen sensor. When the oxygen content in the water reaches the preset value, the air pump is turned off. At the same time as the air pump is turned off, the aeration and stirring motor can drive the four sets of impellers to rotate continuously, so as to achieve the purpose of stirring the water without oxygenation.

[0014] Preferably, a guide plate is installed on the lower surface of the water outlet channel. A guide plate rotary motor is provided at one end of the guide plate, and the guide plate is installed at the output end of the guide plate rotary motor. The guide plate rotary motor can drive the guide plate to rotate. The larger the angle between the guide plate and the lower surface of the water outlet channel, the smaller the space between the guide plate and the upper surface of the water outlet channel, and the farther the dissolved air water is sprayed. The direction in which the guide plate guides the dissolved air water spray is also different depending on the rotation angle of the guide plate. By rotating the guide plate, aeration and oxygenation of the water body in different directions and at different distances are achieved, thereby improving the efficiency and effect of aeration and oxygenation of the water body around the water outlet pipe in different directions.

[0015] Preferably, a water-proof cover is installed on the outside of the guide plate rotary motor, the water-proof cover being used to prevent dissolved air water from affecting the operation of the guide plate rotary motor.

[0016] Beneficial Effects: This invention provides a submersible aeration and mixing device. The aeration and mixing component can spray pumped air from the air holes on the upper and lower surfaces of the impeller. The microbubbles sprayed from the air holes on the upper surface of the impeller mix with water in the gas-liquid mixing chamber. After the high-speed rotation and stirring of the impeller, dissolved air water is formed. The microbubbles sprayed from the air holes on the lower surface of the impeller not only further mix the water flowing out of the gas-liquid mixing chamber, but also provide power for the dissolved air water to be sprayed out of the outlet pipe, making the dissolved air water spray distance farther and the stirring and oxygenation effect of the water better. A guide plate is set in the outlet channel. The rotation of the guide plate realizes aeration and oxygenation of the water in different directions and at different distances, improving the efficiency and effect of aeration and oxygenation of the water in different directions around the outlet pipe. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the submersible aeration and stirring device of the present invention.

[0020] Figure 2 This is a schematic diagram of the aeration and stirring assembly of the present invention;

[0021] Figure 3 This is a partial schematic diagram of the air intake pipe of the present invention;

[0022] Figure 4 This is a schematic diagram of the impeller of the present invention;

[0023] Figure 5 This is a schematic diagram of the gas-liquid mixing chamber of the present invention;

[0024] Figure 6 This is a cross-sectional view of the water outlet channel of the present invention.

[0025] The following are the labels in the diagram: 1. Protective cover; 2. Air inlet pipe; 3. Box body; 4. Water outlet pipe; 5. Support base; 6. Air pump; 7. Impeller; 8. Rotating rod; 9. Aeration and stirring motor; 10. Air hole; 11. Rotating shaft; 12. Dust filter; 13. Water inlet pipe; 14. Water outlet channel; 15. Water outlet; 16. Water inlet; 17. Guide plate rotary motor; 18. Guide plate; 19. Waterproof cover; 20. Gas-liquid mixing chamber; 21. Dissolved oxygen sensor; 22. Barrier mesh. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following text is only used to describe an implementation of a submersible aeration and stirring device of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0027] Example: Figures 1-6 As shown, a submersible aeration and mixing device includes:

[0028] Box 3, such as Figure 1 As shown, an air inlet pipe 2 is installed on the upper side of the box 3, and an air pump 6 is installed inside the box 3. The air pump 6 is used to draw air into the air inlet pipe 2. Several water inlet pipes 13 are provided on the surface of the box 3, and water enters the box 3 through the water inlet pipes 13.

[0029] An aeration and stirring assembly is placed inside the housing 3, such as... Figure 2 As shown, the aeration and mixing assembly includes four sets of impellers 7, a rotating shaft 11, a rotating rod 8, and an aeration and mixing motor 9. The four sets of impellers 7 are respectively installed in different directions on the rotating shaft 11. The aeration and mixing motor 9 drives the rotating shaft 11 to rotate. The impellers 7 and the rotating shaft 11 have a hollow internal structure. The air pump 6 pumps air into the interior of the rotating shaft 11 and the impellers 7. Figure 4 As shown, a plurality of air outlet holes 10 are evenly arranged on the upper and lower surfaces of the impeller 7. The air outlet holes 10 can divide air into small bubbles to oxygenate the water, thereby forming dissolved air water.

[0030] Water outlet pipe 4 is provided at the output end of the aeration and mixing assembly. Several water outlet channels 14 are arranged around the water outlet pipe 4, such as... Figure 6As shown, the water outlet channel 14 includes an inlet 16 and an outlet 15. Dissolved air water enters the water outlet channel 14 from the inlet 16 and flows out from the outlet 15, aerating and oxygenating water bodies in different directions.

[0031] Support 5, such as Figure 1 As shown, the water outlet pipe 4 is placed on the upper surface of the support base 5, and the aeration and stirring motor 9 is placed inside the support base 5.

[0032] In an embodiment, such as Figure 3 As shown, one end of the air intake pipe 2 is placed in the air, and a protective cover 1 is installed on the end of the air intake pipe 2 that is placed in the air. The side of the protective cover 1 is a sealed structure to prevent debris from the side from entering the air intake pipe 2 and affecting the operation of the air pump 6. The inside of the protective cover 1 is a hollow structure connected to the air intake pipe 2. The top surface of the protective cover 1 is a dust filter 12. Air enters the air intake pipe 2 through the dust filter 12 and the protective cover 1 to prevent the air intake pipe 2 from being contaminated by dust, which could lead to device malfunction.

[0033] In an embodiment, such as Figure 1 As shown, the water inlet pipe 13 is located on the upper surface of the tank 3, allowing water to flow into the tank 3 under gravity. The surface of the water inlet pipe 13 is covered with a barrier net 22, which is used to block large impurities in the water from entering the tank 3 and affecting the operation of the aeration and mixing components.

[0034] In an embodiment, such as Figure 5 As shown, the housing 3 and the aeration and stirring assembly form a gas-liquid mixing chamber 20. The output end of the water inlet pipe 13 faces the upper surface of the impeller 7. The tiny bubbles ejected from the air holes 10 on the upper surface of the impeller 7 mix with the water in the gas-liquid mixing chamber 20. After the high-speed rotation and stirring of the impeller 7, dissolved air water is formed. The tiny bubbles ejected from the air holes 10 on the lower surface of the impeller 7 are not only used to further mix the water flowing out of the gas-liquid mixing chamber 20, but also provide power for the dissolved air water to be ejected from the water outlet pipe 4, so that the dissolved air water can be sprayed a longer distance and the stirring and oxygenation effect on the water is better.

[0035] In an embodiment, such as Figure 6 As shown, the water outlet channel 14 sprays water at an angle downwards. The angled downward spraying of the water outlet channel 14 causes the sprayed dissolved air water to agitate the sludge at the bottom of the pool, and the sediment at the bottom of the pool can be effectively agitated and suspended in the water, thereby improving the efficiency and effect of aeration and oxygenation.

[0036] In an embodiment, such as Figure 1As shown, a dissolved oxygen sensor 21 is installed on the surface of the housing 3. The dissolved oxygen sensor 21 is used to measure the oxygen content in the water. A preset oxygen content value is set in the dissolved oxygen sensor 21. When the oxygen content in the water reaches the preset value, the air pump 6 is turned off. At the same time as the air pump 6 is turned off, the aeration and stirring motor 9 can drive the four sets of impellers 7 to rotate continuously, so as to achieve the purpose of stirring the water without oxygenation.

[0037] In an embodiment, such as Figure 6 As shown, a guide plate 18 is installed on the lower surface of the water outlet channel 14. A guide plate rotary motor 17 is provided at one end of the guide plate 18, and the guide plate 18 is installed at the output end of the guide plate rotary motor 17. The guide plate rotary motor 17 can drive the guide plate 18 to rotate. The larger the angle between the guide plate 18 and the lower surface of the water outlet channel 14, the smaller the space between the guide plate 18 and the upper surface of the water outlet channel 14, and the farther the dissolved air water is sprayed. The direction of the dissolved air water sprayed by the guide plate 18 is also different depending on the rotation angle of the guide plate 18. By rotating the guide plate 18, aeration and oxygenation of the water body in different directions and at different distances can be achieved, thereby improving the efficiency and effect of water body aeration and oxygenation.

[0038] In an embodiment, such as Figure 6 As shown, a water-proof cover 19 is installed on the outside of the guide plate rotary motor 17. The water-proof cover 19 is used to prevent dissolved air water from affecting the operation of the guide plate rotary motor 17.

[0039] In use, the air pump 6 draws air into the air inlet pipe 2, and water enters the gas-liquid mixing chamber 20 through the water inlet pipe 13. The air is cut into tiny bubbles through the air holes 10 on the upper and lower surfaces of the impeller 7 and enters the gas-liquid mixing chamber 20. The tiny bubbles and the water are mixed by the rotation and stirring of the impeller 7 to form dissolved air water, which flows into the water outlet channel 14. The dissolved air water diffuses in a circumferential direction. In the initial state, the guide plate 18 in the water outlet channel 14 is in close contact with the lower surface of the water outlet channel 14. After the sludge at the bottom of the pool is fully stirred into the water... After suspension, the direction of the guide plate 18 is changed so that dissolved air water is sprayed into the water body at the outlet 15 in different directions. When the dissolved oxygen sensor 21 detects that the oxygen content in the water body reaches the preset value, the water pump is turned off. At the same time as turning off the air pump 6, the aeration and stirring motor 9 can drive the four sets of impellers 7 to rotate continuously, so as to achieve the purpose of stirring the water body without oxygenation. The submersible aeration and stirring device disclosed in this invention ensures the air pulverization effect, the dissolved air water generation efficiency, and multi-directional aeration and oxygenation of the water body, thereby improving the efficiency and effect of aeration and oxygenation of the water body.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A submersible aeration and mixing device, characterized in that: include: The box has an air inlet pipe installed on its upper side and an air pump installed inside the box. The air pump is used to draw air into the air inlet pipe. Several water inlet pipes are provided on the surface of the box, and water enters the box through the water inlet pipes. An aeration and mixing assembly is placed inside the housing. The aeration and mixing assembly includes four sets of impellers, a rotating shaft, a rotating rod, and an aeration and mixing motor. The four sets of impellers are respectively installed in different directions of the rotating shaft. The aeration and mixing motor drives the rotating shaft to rotate. The impellers and the rotating shaft have a hollow structure inside. An air pump pumps air into the interior of the rotating shaft and impellers. Several air outlets are evenly arranged on the upper and lower surfaces of the impellers. The air outlets divide the air into small bubbles to oxygenate the water and form dissolved air water. The outlet pipe is provided at the output end of the aeration and stirring assembly. Several water outlet channels are arranged around the outlet pipe. Each water outlet channel includes an inlet and an outlet. Dissolved air water enters from the inlet and flows out from the outlet. The tank and the aeration and stirring assembly form a gas-liquid mixing chamber. The output end of the inlet pipe faces the upper surface of the impeller. Tiny bubbles ejected from the air holes on the upper surface of the impeller mix with the water in the gas-liquid mixing chamber. Dissolved air water is formed by the high-speed rotation and stirring of the impeller. Tiny bubbles ejected from the air holes on the lower surface of the impeller are used to further mix the water flowing out of the gas-liquid mixing chamber. Tiny bubbles ejected from the air holes on the lower surface of the impeller also provide power for the dissolved air water to be ejected from the outlet pipe. The support base has the water outlet pipe placed on its upper surface and the aeration and stirring motor placed inside the support base.

2. The submersible aeration and stirring device according to claim 1, characterized in that: One end of the air intake pipe is placed in the air, and a protective cover is installed on the end of the air intake pipe that is placed in the air. The side of the protective cover is a sealed structure, and the inside of the protective cover is a hollow structure connected to the air intake pipe. The top surface of the protective cover is a dust filter.

3. The submersible aeration and stirring device according to claim 1, characterized in that: The water inlet pipe is located on the upper surface of the tank, and a barrier net is attached to the surface of the water inlet pipe. The barrier net is used to block large impurities in the water.

4. The submersible aeration and stirring device according to claim 1, characterized in that: The water outlet channel sprays water at an angle downwards, which causes the sprayed dissolved air water to agitate the sludge at the bottom of the pool.

5. The submersible aeration and stirring device according to claim 1, characterized in that: A dissolved oxygen sensor is installed on the surface of the tank. The dissolved oxygen sensor is used to measure the oxygen content in the water. A preset value for the oxygen content is set in the dissolved oxygen sensor. When the oxygen content in the water reaches the preset value, the air pump is turned off.

6. The submersible aeration and stirring device according to claim 1, characterized in that: A guide plate is installed on the lower surface of the water outlet channel. A guide plate rotation motor is set at one end of the guide plate. The guide plate rotation motor drives the guide plate to rotate. The larger the angle between the guide plate and the lower surface of the water outlet channel, the smaller the space between the guide plate and the upper surface of the water outlet channel, and the farther the dissolved air water is sprayed. The direction in which the guide plate guides the dissolved air water spray is also different depending on the rotation angle of the guide plate.

7. A submersible aeration and stirring device according to claim 6, characterized in that: A water-proof cover is installed on the outside of the guide plate rotary motor. The water-proof cover is used to prevent dissolved air water from affecting the operation of the guide plate rotary motor.

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