Spiral-flow type and aeration type parallel microbubble generation device with oxygen slow release function

Abstract

The invention belongs to the technical field of water ecological management and restoration, and discloses a spiral-flow type and aeration type parallel microbubble generation device with an oxygen slow-release function, which is used for circularly treating a water body to be treated. The microbubble generating device comprises a spiral-flow type device, an aeration type device, a liquid conveying device, a gas conveying device and a detection probe; the aeration type device comprises a horizontal cylinder, a first liquid outlet pipe and a microfiltration membrane connected in the cylinder; the microfiltration membrane divides the interior of the cylinder into a liquid passing cavity positioned on the inner side of the microfiltration membrane and a ventilation cavity positioned on the outer side of the microfiltration membrane. The microfiltration membrane made of ORC materials reacts with water in the liquid passing cavity to slowly release oxygen, when gas passes through the microfiltration membrane, the released high-concentration oxygen is carried to generate oxygen-enriched small bubbles on the inner surface of the microfiltration membrane, the bubbles are wrapped into the water body through liquid-phase shearing force by the water body in the liquid passing cavity to form microbubbles, and the oxygen-enriched small bubbles are formed. The dissolved oxygen content of the water body is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of water ecological management and restoration, and in particular relates to a micro-bubble generating device which is connected in parallel with a cyclone type and an aeration type and has a slow-release oxygen function. Background Art

[0002] Microbubble technology is one of the effective means to enhance wastewater treatment, but the existing microbubble generator has a small adjustment range for oxygenation, and is not suitable for use when the water quantity and quality change greatly. The dissolved oxygen concentration in water varies greatly between day and night, and the dissolved oxygen concentration decreases sharply with the increase of water depth. These changes have a greater impact on submerged plants and aquatic animals, so it is necessary to release oxygen into the water body for a long time. The single-function micro-nano bubble generator on the market is difficult to meet the application requirements under harsh working conditions. Therefore, we propose a microbubble generator that combines cyclone and aeration in parallel and has a slow-release oxygen function to solve the above problems. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a microbubble generating device which is a cyclone type and aeration type in parallel and has a slow-release oxygen function, which solves the problem that the existing microbubble generator with a single function is difficult to meet the application requirements under harsh working conditions.

[0004] The present invention is realized by the following scheme: a microbubble generating device which is connected in parallel with a cyclone type and an aeration type and has a slow-release oxygen function, is used for circulating a water body to be treated, and the microbubble generating device comprises a cyclone type device, an aeration type device, a liquid conveying device which is connected with the cyclone type device and the aeration type device and can convey water to the cyclone type device and / or the aeration type device, a gas conveying device which is connected with the cyclone type device and the aeration type device and can convey gas to the cyclone type device and / or the aeration type device, and a detection probe for monitoring the dissolved oxygen concentration and turbidity of the water body to be treated;

[0005] It also includes a control device for obtaining the dissolved oxygen concentration and turbidity of the water body to be treated in real time and controlling the liquid conveying device to convey water to the aeration device and / or the cyclone device and controlling the gas conveying device to convey gas to the aeration device and / or the cyclone device according to the dissolved oxygen concentration and turbidity of the water body to be treated, so that the dissolved oxygen concentration and turbidity of the water body meet the first preset range value and the second preset range value respectively;

[0006] The aeration device includes a horizontal cylindrical barrel, a first liquid outlet pipe and a microporous filter membrane connected to the cylindrical barrel, the microporous filter membrane divides the interior of the cylindrical barrel into a liquid passage cavity located on the inner side of the microporous filter membrane and a ventilation cavity located on the outer side of the microporous filter membrane, one end of the liquid passage cavity is connected to the liquid conveying device, and the other end of the liquid passage cavity is connected to the first liquid outlet pipe, the first liquid outlet pipe extends away from the end of the liquid passage cavity to the water body to be treated, and is used to discharge the water body treated by the aeration device into the water body to be treated, the gas conveying device is connected to the ventilation cavity, and the microporous filter membrane is made of ORC material.

[0007] A further improvement of the microbubble generating device of the present invention, which is a cyclone type and aeration type in parallel and has a slow-release oxygen function, is that the cyclone type device includes a cyclone barrel, a second liquid inlet pipe, a second air inlet pipe, and a second liquid outlet pipe connected to the top of the cyclone barrel, one end of the second liquid inlet pipe is connected to the liquid conveying device, and the other end of the second liquid inlet pipe is connected to the cyclone barrel, which is used to guide the water entering the cyclone barrel to swirl along the inner wall of the cyclone barrel, one end of the second air inlet pipe is connected to the gas conveying device, and the other end of the second air inlet pipe is connected to the bottom of the cyclone barrel.

[0008] A further improvement of the micro-bubble generating device of the present invention, which is connected in parallel with the swirl type and the aeration type and has the function of slow-release oxygen, is that the liquid delivery device comprises a liquid pump for extracting water, a liquid infusion tube connected with the liquid pump, a first regulating valve and a second regulating valve, the first end of the liquid infusion tube is connected with the liquid passage cavity, the second end of the liquid infusion tube is connected with the second liquid inlet tube, the first regulating valve is installed at the first end of the liquid infusion tube, and the second regulating valve is installed at the second end of the liquid infusion tube;

[0009] The control device controls the connection between the liquid pump, the first regulating valve and the second regulating valve, and is used to control the liquid pump and the first regulating valve to open and the second regulating valve to close when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, or

[0010] When the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the pumping pump and the second regulating valve are controlled to be opened and the first regulating valve is closed; or

[0011] Used to control the liquid pump, the first regulating valve and the second regulating valve to open when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value.

[0012] A further improvement of the microbubble generating device of the present invention, which is connected in parallel with the swirl type and the aeration type and has the function of slow-release oxygen, is that the liquid delivery device also includes a booster pump, a first flow meter and a second flow meter. The booster pump is connected between the liquid suction pump and the infusion tube. The first flow meter is installed at the first end of the infusion tube and is staggered with the position of the first regulating valve. It is used to monitor the flow rate of the water flowing into the liquid passage cavity and feed back to the control device to control the booster pump so that the flow rate of the water flowing into the liquid passage cavity matches the preset flow rate of the water in the liquid passage cavity. The second flow meter is installed at the second end of the infusion tube and is staggered with the position of the second regulating valve. It is used to detect the flow rate of the water flowing into the swirl cylinder and feed back to the control device to control the booster pump so that the flow rate of the water flowing into the swirl cylinder matches the preset flow rate of the water in the swirl cylinder.

[0013] A further improvement of the micro-bubble generating device of the present invention, which is connected in parallel with the cyclone type and the aeration type and has the function of slow-release oxygen, is that the gas delivery device comprises an air compressor, an air delivery pipe connected to the air compressor, a third regulating valve and a fourth regulating valve, the first end of the air delivery pipe is connected to the ventilation cavity, the second end of the air delivery pipe is connected to the second air inlet pipe, the third regulating valve is installed at the first end of the air delivery pipe, and the fourth regulating valve is installed at the second end of the air delivery pipe;

[0014] The control device controls the connection of the air compressor, the third regulating valve and the fourth regulating valve, and is used to control the air compressor and the third regulating valve to be opened and the fourth regulating valve to be closed when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, or

[0015] When the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the air compressor and the fourth regulating valve are controlled to be opened and the third regulating valve is closed; or

[0016] Used to control the air compressor, the third regulating valve and the fourth regulating valve to open when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention guides the water body entering through the second liquid inlet pipe to swirl along the inner wall of the swirl tube, and negative pressure is generated in the swirl center of the water body. The pressurized gas enters the swirl tube from the second air inlet pipe, and an air column is formed inside the swirl tube. The water body generates microbubbles under the action of rotational shear and pressure crushing, and flows out from the second liquid outlet pipe. The swirl device generates micro-nano bubbles while destroying the floccules generated in the water body; the microporous filter membrane of the ORC material reacts with the water in the liquid passage cavity to slowly release oxygen. After the gas enters the ventilation cavity, when the gas passes through the microporous filter membrane, the high-concentration oxygen released by the ORC material is carried to generate oxygen-rich small bubbles on the inner surface of the microporous filter membrane. The water body in the liquid passage cavity wraps these bubbles into the water body with the liquid phase shear force to form microbubbles, and then flows out from the first liquid outlet pipeline, further increasing the dissolved oxygen content of the water body; the swirl device and the aeration device are connected in parallel, and can be selectively opened to meet the use requirements under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structural diagram of the present invention is shown.

[0020] In the figure: 1. cyclone device; 11. second air inlet pipe; 12. air column; 13. cyclone tube; 14. second liquid outlet pipe; 15. second liquid inlet pipe; 2. liquid delivery device; 21. liquid extraction pipe; 22. liquid extraction pump; 23. booster pump; 24. liquid delivery pipe; 25. second regulating valve; 26. first regulating valve; 27. first flow meter; 28. second flow meter; 3. gas delivery device; 31. air compressor; 32. fourth regulating valve; 33. third regulating valve; 34. third flow meter; 35. fourth flow meter; 36. air delivery pipe; 4. aeration device; 41. first liquid inlet pipe; 42. microporous filter membrane; 43. first liquid outlet pipe; 44. first air inlet pipe; 45. liquid cavity; 46. ventilation cavity; 5. detection probe. DETAILED DESCRIPTION

[0021] In order to solve the problem that the existing microbubble generators with single functions are difficult to meet the application requirements under harsh working conditions, the present invention provides a microbubble generating device with a cyclone type and an aeration type in parallel and having a slow-release oxygen function. The microbubble generating device with a cyclone type and an aeration type in parallel and having a slow-release oxygen function is further described below with specific embodiments combined with the accompanying drawings.

[0022] See also Figure 1As shown, a microbubble generating device of a cyclone type and an aeration type in parallel and having a slow-release oxygen function is used for circulating a water body to be treated, and the microbubble generating device comprises a cyclone type device 1, an aeration type device 4, a liquid conveying device 2 which is connected with the cyclone type device 1 and the aeration type device 4 and can convey water to the cyclone type device 1 and / or the aeration type device 4, a gas conveying device 3 which is connected with the cyclone type device 1 and the aeration type device 4 and can convey gas to the cyclone type device 1 and / or the aeration type device 4, and a detection probe 5 for monitoring the dissolved oxygen concentration and turbidity of the water body to be treated;

[0023] It also includes a control device (not shown in the figure), which is used to obtain the dissolved oxygen concentration and turbidity of the water body to be treated in real time and control the liquid conveying device 2 to convey water to the aeration device 4 and / or the cyclone device 1 according to the dissolved oxygen concentration and turbidity of the water body to be treated, and control the gas conveying device 3 to convey gas to the aeration device 4 and / or the cyclone device 1, so that the dissolved oxygen concentration and turbidity of the water body meet the first preset range value and the second preset range value respectively;

[0024] The aeration device 4 includes a horizontal cylindrical tube, a first liquid outlet pipe 43 and a microporous filter membrane 42 connected to the cylindrical tube. The microporous filter membrane 42 divides the interior of the cylindrical tube into a liquid passage chamber 45 located on the inner side of the microporous filter membrane 42 and a ventilation chamber 46 located on the outer side of the microporous filter membrane 42. One end of the liquid passage chamber 45 is connected to the liquid conveying device 2, and the other end of the liquid passage chamber 45 is connected to the first liquid outlet pipe 43. The first liquid outlet pipe extends away from one end of the liquid passage chamber to the water body to be treated, and is used to discharge the water body treated by the aeration device into the water body to be treated. The gas conveying device 3 is connected to the ventilation chamber 46, and the microporous filter membrane 42 is made of ORC material.

[0025] Specifically, the aeration device 4 further includes a first liquid inlet pipe 41 and a first air inlet pipe 44. The liquid delivery device 2 is connected to the liquid passage cavity 45 through the first liquid inlet pipe 41, and the gas delivery device 3 is connected to the air passage cavity 46 through the first air inlet pipe 44.

[0026] The dissolved oxygen concentration and turbidity of the water body are obtained in real time by the control device, and the liquid conveying device 2 is controlled to convey liquid to the aeration device 4 and / or the cyclone device 1 and the gas conveying device 3 is controlled to convey gas to the aeration device 4 and / or the cyclone device 1 according to the dissolved oxygen concentration and turbidity of the water body; when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, the liquid conveying device 2 is controlled to convey liquid to the aeration device 4 and the gas conveying device 3 is controlled to convey gas to the aeration device 4; when the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the liquid conveying device 2 is controlled to convey liquid to the cyclone device 1 and the gas conveying device 3 is controlled to convey gas to the cyclone device 1; when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value, the liquid conveying device 2 is controlled to convey liquid to the cyclone device 1 and the aeration device 4 at the same time and the gas conveying device 3 is controlled to convey gas to the cyclone device 1 and the aeration device 4 at the same time;

[0027] Furthermore, when the liquid conveying device 2 conveys liquid to the aeration device 4 and the gas conveying device 3 conveys gas to the aeration device 4, the microporous filter membrane 42 of the ORC material reacts with the water in the liquid passage cavity 45 to slowly release oxygen. After the gas enters the ventilation cavity 46, when the gas passes through the microporous filter membrane 42, the high-concentration oxygen released by the ORC material is carried to generate oxygen-rich small bubbles on the inner surface of the microporous filter membrane 42. The water in the liquid passage cavity 45 wraps these bubbles into the water body by the liquid phase shear force to form microbubbles, and then flows out from the first liquid outlet pipe 43, further increasing the dissolved oxygen content of the water body. Moreover, the water body flows on the inner side of the microporous filter membrane 42, and the gas passes through the microporous filter membrane 42 on the outer side of the microporous filter membrane 42 by pressurization into the water, which can well avoid the problem of clogging of the microporous filter membrane 42 by flocculants.

[0028] Among them, the cyclone device 1 includes a cyclone cylinder 13, a second liquid inlet pipe 15, a second air inlet pipe 11 and a second liquid outlet pipe 14 connected to the top of the cyclone cylinder 13, one end of the second liquid inlet pipe 15 is connected to the liquid conveying device 2, and the other end of the second liquid inlet pipe 15 is connected to the cyclone cylinder 13, which is used to guide the water entering the cyclone cylinder 13 to swirl along the inner wall of the cyclone cylinder 13, one end of the second air inlet pipe 11 is connected to the gas conveying device 3, and the other end of the second air inlet pipe 11 is connected to the bottom of the cyclone cylinder 13.

[0029] The liquid introduced through the second liquid inlet pipe 15 swirls along the inner wall of the cyclone tube 13, and negative pressure is generated in the center of the liquid cyclone. The pressurized gas enters the cyclone tube 13 from the second air inlet pipe 11, and an air column 12 is formed inside the cyclone tube 13. Microbubbles are generated by the liquid under the action of rotational shear and pressure crushing, and flow out from the second liquid outlet pipe 14. The cyclone device 1 generates micro-nano bubbles while destroying the floccules generated in the water body. Destroying the floccules can avoid clogging, and the generated micro-nano bubbles can increase the dissolved oxygen content in the water.

[0030] The liquid delivery device 2 includes a liquid pump 22 for extracting water, a liquid infusion tube 24 connected to the liquid pump 22, a first regulating valve 26 and a second regulating valve 25. The first end of the liquid infusion tube 24 is connected to the liquid passage cavity 45, and the second end of the liquid infusion tube 24 is connected to the second liquid inlet tube 15. The first regulating valve 26 is installed at the first end of the liquid infusion tube 24, and the second regulating valve 25 is installed at the second end of the liquid infusion tube 24.

[0031] The control device controls the connection between the liquid pump 22, the first regulating valve 26 and the second regulating valve 25, and is used to control the liquid pump 22 and the first regulating valve 26 to open and the second regulating valve 25 to close when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, or

[0032] When the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the liquid pump 22 and the second regulating valve 25 are controlled to be opened and the first regulating valve 26 is closed, or

[0033] It is used to control the opening of the liquid pump, the first regulating valve 26 and the second regulating valve 25 when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value.

[0034] Specifically, the liquid delivery device 2 further includes a liquid extraction pipe 21 connected to a liquid extraction pump 22, and the liquid extraction pump 22 extracts water through the liquid extraction pipe 21;

[0035] Furthermore, the detection probe 5 is installed on the outside of the liquid extraction pipe 21 to monitor the dissolved oxygen concentration and turbidity of the water body and feed back to the control device;

[0036] By adopting the above design, the present invention can selectively control the liquid conveying device 2 and the gas conveying device 3 to convey water and gas to the cyclone device 1 and / or the aeration device 4 according to the dissolved oxygen concentration and turbidity of the water body to meet the use requirements under different working conditions.

[0037] Among them, the liquid delivery device 2 also includes a booster pump 23, a first flow meter 27 and a second flow meter 28. The booster pump 23 is connected between the liquid suction pump 22 and the infusion tube 24. The first flow meter 27 is installed at the first end of the infusion tube 24 and is staggered with the position of the first regulating valve 26. It is used to monitor the flow rate of the water flowing into the liquid passage cavity 45 and feed back to the control device to control the booster pump 23 so that the flow rate of the water flowing into the liquid passage cavity 45 matches the preset flow rate of the water in the liquid passage cavity 45. The second flow meter 28 is installed at the second end of the infusion tube 24 and is staggered with the position of the second regulating valve 25. It is used to detect the flow rate of the water flowing into the vortex tube 13 and feed back to the control device to control the booster pump 23 so that the flow rate of the water flowing into the vortex tube 13 matches the preset flow rate of the water in the vortex tube 13.

[0038] By adopting the above design, the flow velocity of the water flowing into the liquid chamber 45 and the flow velocity of the water flowing into the cyclone tube 13 can be monitored in real time, and the flow velocity of the water flowing into the liquid chamber 45 can be matched with the preset flow velocity of the water in the liquid chamber 45, and the flow velocity of the water flowing into the cyclone tube 13 can be matched with the preset flow velocity of the water in the cyclone tube 13; the automation effect is better.

[0039] The gas delivery device 3 includes an air compressor 31, an air delivery pipe 36 connected to the air compressor 31, a third regulating valve 33 and a fourth regulating valve 32. The first end of the air delivery pipe 36 is connected to the ventilation cavity 46, and the second end of the air delivery pipe 36 is connected to the second air inlet pipe 11. The third regulating valve 33 is installed at the first end of the air delivery pipe 36, and the fourth regulating valve 32 is installed at the second end of the air delivery pipe 36.

[0040] The control device controls the connection of the air compressor 31, the third regulating valve 33 and the fourth regulating valve 32, and is used to control the air compressor 31 and the third regulating valve 33 to be opened and the fourth regulating valve 32 to be closed when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, or

[0041] When the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the air compressor 31 and the fourth regulating valve 32 are controlled to be opened and the third regulating valve 33 is closed, or

[0042] It is used to control the air compressor 31, the third regulating valve 33 and the fourth regulating valve 32 to open when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value.

[0043] By adopting the above design, the pressurized gas formed by the air compressor 31 can be delivered to the ventilation chamber 46 through the first end of the gas delivery pipe 36 and to the cyclone cylinder 13 through the second end of the gas delivery pipe 36 to provide the required gas to the cyclone device 1 and the aeration device 4.

[0044] The gas delivery device 3 further includes a third flow meter 34 installed at the first end of the gas delivery pipe 36 and offset from the position of the third regulating valve 33 , and a fourth flow meter 35 installed at the second end of the gas delivery pipe 36 and offset from the position of the fourth regulating valve 32 .

[0045] By adopting the above design, the third flow meter 34 is used to monitor the flow rate of the gas flowing to the ventilation chamber 46, and the fourth flow meter 35 is used to monitor the flow rate of the gas flowing to the swirl tube 13 and feed back to the control device to control the air compressor 31 so that the flow rate of the gas meets the preset flow rate of the gas flowing to the swirl tube 13 and the flow rate of the gas meets the preset flow rate of the gas flowing to the ventilation chamber 46.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A microbubble generating device with a cyclone type and aeration type in parallel and having a slow-release oxygen function, used for circulating the water to be treated, characterized in that: The microbubble generating device comprises a cyclone device, an aeration device, a liquid conveying device connected to the cyclone device and the aeration device and capable of conveying water to the cyclone device and / or the aeration device, a gas conveying device connected to the cyclone device and the aeration device and capable of conveying gas to the cyclone device and / or the aeration device, and a detection probe for monitoring the dissolved oxygen concentration and turbidity of the water to be treated; It also includes a control device for obtaining the dissolved oxygen concentration and turbidity of the water body to be treated in real time and controlling the liquid conveying device to convey water to the aeration device and / or the cyclone device and controlling the gas conveying device to convey gas to the aeration device and / or the cyclone device according to the dissolved oxygen concentration and turbidity of the water body to be treated, so that the dissolved oxygen concentration and turbidity of the water body meet the first preset range value and the second preset range value respectively; The aeration device includes a horizontal cylindrical barrel, a first liquid outlet pipe and a microporous filter membrane connected to the cylindrical barrel, the microporous filter membrane divides the interior of the cylindrical barrel into a liquid passage cavity located on the inner side of the microporous filter membrane and a ventilation cavity located on the outer side of the microporous filter membrane, one end of the liquid passage cavity is connected to the liquid conveying device, and the other end of the liquid passage cavity is connected to the first liquid outlet pipe, the first liquid outlet pipe extends away from the end of the liquid passage cavity to the water body to be treated, and is used to discharge the water body treated by the aeration device into the water body to be treated, the gas conveying device is connected to the ventilation cavity, and the microporous filter membrane is made of ORC material.

2. The microbubble generating device of cyclone type and aeration type in parallel and having slow-release oxygen function as claimed in claim 1, characterized in that: The cyclone device includes a cyclone barrel, a second liquid inlet pipe, a second air inlet pipe and a second liquid outlet pipe connected to the top of the cyclone barrel, one end of the second liquid inlet pipe is connected to the liquid conveying device, and the other end of the second liquid inlet pipe is connected to the cyclone barrel, and is used to guide the water entering the cyclone barrel to swirl along the inner wall of the cyclone barrel, one end of the second air inlet pipe is connected to the gas conveying device, and the other end of the second air inlet pipe is connected to the bottom of the cyclone barrel.

3. The microbubble generating device of cyclone type and aeration type in parallel and having slow-release oxygen function as claimed in claim 2, characterized in that: The liquid delivery device comprises a liquid pump for extracting water, a liquid infusion tube connected to the liquid pump, a first regulating valve and a second regulating valve, wherein the first end of the liquid infusion tube is connected to the liquid passage cavity, the second end of the liquid infusion tube is connected to the second liquid inlet tube, the first regulating valve is installed at the first end of the liquid infusion tube, and the second regulating valve is installed at the second end of the liquid infusion tube; The control device controls the connection between the liquid pump, the first regulating valve and the second regulating valve, and is used to control the liquid pump and the first regulating valve to open and the second regulating valve to close when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, or When the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the pumping pump and the second regulating valve are controlled to be opened and the first regulating valve is closed; or Used to control the liquid pump, the first regulating valve and the second regulating valve to open when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value.

4. The microbubble generating device of cyclone type and aeration type in parallel and having slow-release oxygen function as claimed in claim 3, characterized in that: The liquid delivery device also includes a booster pump, a first flow meter and a second flow meter. The booster pump is connected between the liquid suction pump and the infusion tube. The first flow meter is installed at the first end of the infusion tube and is offset from the position of the first regulating valve. It is used to monitor the flow rate of the water flowing into the liquid passage cavity and feed back to the control device to control the booster pump so that the flow rate of the water flowing into the liquid passage cavity matches the preset flow rate of the water in the liquid passage cavity. The second flow meter is installed at the second end of the infusion tube and is offset from the position of the second regulating valve. It is used to detect the flow rate of the water flowing into the vortex tube and feed back to the control device to control the booster pump so that the flow rate of the water flowing into the vortex tube matches the preset flow rate of the water in the vortex tube.

5. The microbubble generating device of cyclone type and aeration type in parallel and having slow-release oxygen function as claimed in claim 2, characterized in that: The gas delivery device includes an air compressor, an air delivery pipe connected to the air compressor, a third regulating valve and a fourth regulating valve, wherein the first end of the air delivery pipe is connected to the ventilation cavity, the second end of the air delivery pipe is connected to the second air inlet pipe, the third regulating valve is installed at the first end of the air delivery pipe, and the fourth regulating valve is installed at the second end of the air delivery pipe; The control device controls the connection of the air compressor, the third regulating valve and the fourth regulating valve, and is used to control the air compressor and the third regulating valve to be opened and the fourth regulating valve to be closed when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is not higher than the second preset range value, or When the dissolved oxygen concentration of the water body is not lower than the first preset range value and the turbidity is higher than the second preset range value, the air compressor and the fourth regulating valve are controlled to be opened and the third regulating valve is closed; or Used to control the air compressor, the third regulating valve and the fourth regulating valve to open when the dissolved oxygen concentration of the water body is lower than the first preset range value and the turbidity is higher than the second preset range value.

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