Submersible jet flow ozone aerator for aquaculture wastewater treatment

Abstract

The utility model discloses a submersible jet flow ozone aerator for treating aquaculture wastewater, and relates to the technical field of wastewater treatment equipment. The device comprises an oxygen bottle, an ozone generator, a water tank, a high-pressure water pump, a water valve and a combined micro-nano bubble generator, the combined micro-nano bubble generator comprises a first generator, a second generator and a third generator which are sequentially in threaded connection, the end, away from the second generator, of the first generator is sleeved with an inlet end cover in a threaded mode, the end, away from the first generator, of the inlet end cover is provided with a liquid inlet pipe, and an aeration assembly is arranged in the liquid inlet pipe. The end, away from the second generator, of the third generator is sleeved with an outlet end cover. Ozone-based micro-nano bubbles are obtained through the aeration assembly and the combined micro-nano bubble generator, the reaction time of ozone in the bubbles in water is prolonged, and breeding wastewater and the ozone are fully mixed and contacted.

Description

Technical Field

[0001] This utility model belongs to the technical field of wastewater treatment equipment, and in particular relates to a submersible jet ozone aerator for treating aquaculture wastewater. Background Technology

[0002] The levels of ammonia nitrogen (NH3-N), nitrate nitrogen (NO3-N), nitrite nitrogen (NO2-N), and phosphorus and potassium in aquaculture wastewater generally exceed the standards. If not effectively treated, these pollutants will enter surface water through rainwater runoff and other pathways, causing serious harm to the surrounding aquatic environment. Traditional water purification methods, such as self-purification, regular water changes, and phytoremediation, are insufficient to bring water quality to the desired standards.

[0003] Existing submersible jet ozone aerators have drawbacks such as low oxygenation efficiency, insufficient ozone utilization, high energy consumption, and complex structure, which affect their application effect in actual production.

[0004] To address these issues, we provide a submersible jet ozone aerator for aquaculture wastewater treatment. Utility Model Content

[0005] In view of this, the present invention provides a submersible jet ozone aerator for the treatment of aquaculture wastewater, aiming to overcome the shortcomings of the prior art, improve treatment efficiency, and reduce energy consumption.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a submersible jet ozone aerator for treating aquaculture wastewater, comprising: an oxygen cylinder, an ozone generator, a water tank, a high-pressure water pump, a water valve, and a combined micro-nano bubble generator;

[0008] The combined micro-nano bubble generator includes a first generator, a second generator, and a third generator that are threaded together along their own axial direction. The first generator has an inlet end cap threaded onto the end opposite to the second generator. A liquid inlet pipe is installed on the end of the inlet end cap opposite to the first generator and is connected to the first generator. An aeration component is installed inside the liquid inlet pipe. The third generator has an outlet end cap threaded onto the end opposite to the second generator. An end cap outlet pipe connected to the outlet end cap is fixedly connected to the end of the outlet end cap opposite to the third generator. Fixing components are installed on the outside of the first generator, the second generator, and the third generator.

[0009] The aeration assembly includes an L-shaped air inlet pipe fixedly connected inside the liquid inlet pipe. An aeration pipe is sleeved at one end of the air inlet pipe inside the liquid inlet pipe, and there is a gap between the inner wall of the liquid inlet pipe and the outer wall of the aeration pipe. Multiple through aeration holes are evenly opened on the side wall of the aeration pipe.

[0010] The present invention is further configured such that a first mixing chamber is formed between the first generator and the inlet end cap, a second mixing chamber is formed between the first generator and the second generator, a third mixing chamber is formed between the second generator and the third generator, and a fourth mixing chamber is formed between the third generator and the outlet end cap.

[0011] The present invention is further configured such that the centerline of the aeration hole is perpendicular to the centerline of the liquid inlet pipe, and the diameter of the aeration hole gradually increases from the air inlet pipe to the liquid inlet pipe.

[0012] The present invention is further configured such that the liquid inlet pipe includes a first pipe section, a second pipe section and a third pipe section arranged sequentially along the axial direction, and the inner diameter of the first pipe section, the second pipe section and the third pipe section gradually decreases in a stepped manner;

[0013] The aeration holes of the air inlet pipe are located at least partially within the third pipe section.

[0014] The present invention is further configured such that the first generator, the second generator and the third generator are respectively provided with a plurality of uniformly distributed, axially continuous primary throttling channels, secondary throttling channels and tertiary throttling channels.

[0015] The present invention is further configured such that the primary throttling channel, the secondary throttling channel and the tertiary throttling channel are all gourd-shaped, and the minimum aperture of the primary throttling channel, the secondary throttling channel and the tertiary throttling channel decreases sequentially.

[0016] The present invention is further configured such that the outlet of the oxygen cylinder is connected to the inlet of the ozone generator, the outlet of the ozone generator is connected to a gas valve, the outlet of the gas valve is connected to a shut-off valve, the outlet of the shut-off valve is connected to an air inlet pipe, the inlet of the high-pressure water pump is connected to a water tank through a pipe, the outlet of the high-pressure water pump is connected to a water valve, and the outlet of the water valve is connected to a liquid inlet pipe.

[0017] The present invention is further configured such that a connecting pipe connected to the inlet end cap is fixedly connected to the end of the inlet end cap that is away from the first generator, and the liquid inlet pipe is threaded into the inside of the connecting pipe.

[0018] The present invention is further configured such that a stable support is fixedly connected to the outside of the aeration pipe, and the stable support is sandwiched between the liquid inlet pipe and the inlet end cap.

[0019] The present invention is further configured such that the fixing component includes a front cover fixedly sleeved on the outside of the liquid inlet pipe, and an n-shaped fixing bracket rotatably connected to the outside of the end cover outlet pipe, and the fixing bracket and the front cover are connected by bolts.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model enables the gas phase flow and liquid phase flow to undergo a shearing effect in the liquid inlet pipe through the aeration component, generating a mixed flow containing small ozone bubbles and forming strong turbulence in the liquid inlet pipe. This design effectively increases the turbulence of the jet and reduces the particle size of the ozone bubbles.

[0022] 2. This invention uses a mixed flow to sequentially enter the first, second, and third generators of the liquid, which can continuously increase the pressure, dissolve the gas, reduce the pressure, and release the gas to obtain ozone-containing micro-nano bubbles. The micro-nano bubbles have a large surface area, which makes the ozone in the bubbles more easily and quickly dissolve in the water. Due to the small diameter of the bubbles, the rising speed is slow, which prolongs the reaction time of the ozone in the bubbles in the water, allowing the aquaculture wastewater and ozone to be fully mixed and contacted.

[0023] 3. By using a combined micro-nano bubble generator, the diameter of the generated bubbles can be adjusted by increasing or decreasing the number of generator stages according to requirements, so that the device can adapt to different working conditions, improve the ozone addition efficiency, and reduce energy consumption.

[0024] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the device of this utility model.

[0027] Figure 2 This is a three-dimensional structural diagram of the combined micro-nano bubble generator of this utility model.

[0028] Figure 3 This is a schematic diagram of the explosion structure of the combined micro / nano bubble generator of this utility model.

[0029] Figure 4 This is a cross-sectional view of the combined micro / nano bubble generator of this utility model.

[0030] Figure 5 This is a cross-sectional schematic diagram of the first generator, second generator, and third generator of this utility model.

[0031] Figure 6 for Figure 4 A magnified structural diagram of point A in the middle.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 100. Oxygen cylinder; 200. Ozone generator; 300. Gas valve; 400. Shut-off valve; 500. Water tank; 600. High-pressure water pump; 700. Water valve; 800. Combined micro / nano bubble generator; 801. Liquid inlet pipe; 801a. First pipe section; 801b. Second pipe section; 801c. Third pipe section; 802. Aeration assembly; 802a. Air inlet pipe; 802b. Aeration pipe; 802b-1. Aeration hole; 802c. Stabilizing support; 803. Inlet end 803a, First mixing chamber; 803b, Connecting pipe; 804, First generator; 804a, First-stage throttling channel; 804b, Second mixing chamber; 805, Second generator; 805a, Second-stage throttling channel; 805b, Third mixing chamber; 806, Third generator; 806a, Third-stage throttling channel; 806b, Fourth mixing chamber; 807, Outlet end cap; 807a, End cap outlet pipe; 808, Fixing assembly; 808a, Front cover; 808b, Fixing bracket. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example

[0035] Please see Figures 1 to 6 This utility model is a submersible jet ozone aerator for treating aquaculture wastewater, including an oxygen cylinder 100, an ozone generator 200, a water tank 500, a high-pressure water pump 600, a water valve 700, and a combined micro-nano bubble generator 800.

[0036] The combined micro / nano bubble generator 800 includes a first generator 804, a second generator 805, and a third generator 806 connected sequentially along its own axial direction. The first generator 804 has an inlet end cap 803 threadedly fitted onto the end opposite to the second generator 805. A liquid inlet pipe 801 is installed on the end opposite to the first generator 804 of the inlet end cap 803. The liquid inlet pipe 801 is connected to the first generator 804. An aeration component 802 is provided inside the liquid inlet pipe 801. The third generator 806 has an outlet end cap 807 threadedly fitted onto the end opposite to the second generator 805. An end cap outlet pipe 807a is fixedly connected to the end opposite to the third generator 806 and is connected to the end cap outlet pipe 807a. A fixing component 808 is provided on the outside of the first generator 804, the second generator 805, and the third generator 806.

[0037] The aeration assembly 802 includes an L-shaped air inlet pipe 802a fixedly connected inside the liquid inlet pipe 801. An aeration pipe 802b is sleeved at one end of the air inlet pipe 802a inside the liquid inlet pipe 801. There is a gap between the inner wall of the liquid inlet pipe 801 and the outer wall of the aeration pipe 802b. A plurality of through aeration holes 802b-1 are evenly opened on the side wall of the aeration pipe 802b.

[0038] A first mixing chamber 803a is formed between the first generator 804 and the inlet end cap 803, a second mixing chamber 804b is formed between the first generator 804 and the second generator 805, a third mixing chamber 805b is formed between the second generator 805 and the third generator 806, and a fourth mixing chamber 806b is formed between the third generator 806 and the outlet end cap 807.

[0039] Aeration assembly 802 is used to introduce gas into liquid inlet pipe 801; for example, the gas may be ozone. In one example, the side of aeration pipe 802b opposite to the air inlet pipe 802a is blocked.

[0040] Specifically, the centerline of the aeration hole 802b-1 is perpendicular to the centerline of the liquid inlet pipe 801, and the diameter of the aeration hole 802b-1 gradually increases from the air inlet pipe 802a to the liquid inlet pipe 801. The perpendicularity of the centerline of the aeration hole 802b-1 to the centerline of the liquid inlet pipe 801 allows ozone gas to be ejected radially and to perpendicularly converge with the axially flowing liquid within a tiny gap. The tiny diameter and gradually expanding structure of the aeration hole 802b-1 create a high Reynolds number flow field and a strong turbulent shear effect when the gas is ejected, thereby generating micro- and nano-sized bubbles. The specific surface area of ​​the micro- and nano-sized bubbles is much larger than that of the millimeter-sized bubbles formed by liquid impact, which greatly improves the ozone dissolution efficiency. In addition, the vertical gas impact combined with the pressurization and depressurization circulation of the multi-stage throttling channel forms strong turbulence, avoiding gas-liquid stratification and ensuring uniform ozone distribution. Compared with the liquid impact mode, this reduces pumping energy consumption and improves the treatment efficiency of aquaculture wastewater. Among them, the centerline of aeration hole 802b-1 refers to the straight line passing through the center of the hole, and the centerline of liquid inlet pipe 801 refers to the straight line passing through the geometric center of the pipe.

[0041] The liquid inlet pipe 801 includes a first pipe section 801a, a second pipe section 801b, and a third pipe section 801c arranged sequentially along the axial direction. The inner diameters of the first pipe section 801a, the second pipe section 801b, and the third pipe section 801c are stepped and gradually decrease. The stepped and gradually decreasing design can increase the liquid flow pressure and flow velocity.

[0042] The outlet of the oxygen cylinder 100 is connected to the inlet of the ozone generator 200. The outlet of the ozone generator 200 is connected to a gas valve 300. A shut-off valve 400 is installed on the other side of the outlet of the gas valve 300. The other side of the outlet of the shut-off valve 400 is connected to the air inlet pipe 802a. The inlet of the high-pressure water pump 600 is connected to the water tank 500 through a pipe. A water valve 700 is installed on the outlet of the high-pressure water pump 600. The other side of the outlet of the water valve 700 is connected to the liquid inlet pipe 801. By adjusting the gas valve 300 and the water valve 700, the gas-liquid mixing ratio is adjusted, thereby optimizing the shear effect in the aeration component 802.

[0043] The first generator 804, the second generator 805, and the third generator 806 are respectively provided with multiple uniformly distributed, axially continuous primary throttling channels 804a, secondary throttling channels 805a, and tertiary throttling channels 806a.

[0044] The end of the inlet end cap 803 facing away from the first generator 804 is fixedly connected to a connecting pipe 803b that communicates with the inlet end cap 803, and the liquid inlet pipe 801 is threaded into the inside of the connecting pipe 803b.

[0045] Furthermore, the primary throttling channel 804a, the secondary throttling channel 805a, and the tertiary throttling channel 806a are all gourd-shaped, and the minimum orifice diameter of the primary throttling channel 804a, the secondary throttling channel 805a, and the tertiary throttling channel 806a decreases sequentially.

[0046] The inlet end cap 803 is fixedly connected to a connecting pipe 803b that communicates with the inlet end cap 803 at the end opposite to the first generator 804, and the liquid inlet pipe 801 is threaded into the inside of the connecting pipe 803b.

[0047] The aeration pipe 802b is externally fixedly connected to a stabilizing bracket 802c, which is sandwiched between the liquid inlet pipe 801 and the inlet end cap 803. The stability of the aeration pipe 802b can be increased by the stabilizing bracket 802c.

[0048] The operation process of this embodiment is as follows: When powered on, the high-pressure water pump 600 starts, and water is drawn in from the bottom of the pump. After the impeller in the high-pressure water pump 600 rotates at high speed, the water gains potential energy and is quickly ejected from the outlet of the high-pressure water pump 600. The water then enters the liquid inlet pipe 801 of the combined micro-nano bubble generator 800 through the water valve 700. At the same time, the ozone generator 200 starts, and the valve of the oxygen cylinder 100 is opened to introduce oxygen into the ozone generator 200. Then, the ozone generator 200 converts the oxygen into ozone, and the ozone is ejected from the ozone generator 200. The ozone then enters the shut-off valve 400 through the gas valve 300, and the ozone enters the air inlet pipe 802a of the combined micro-nano bubble generator 800 through the shut-off valve 400.

[0049] When a mixture of gas and liquid is introduced into the combined micro / nano bubble generator 800, ozone gas with a certain flow rate flows into the aeration pipe 802b through the inlet pipe 802a and then flows out through the aeration holes 802b-1 on the aeration pipe 802b. Since the centerline of the aeration hole 802b-1 is perpendicular to the centerline of the liquid inlet pipe 801, the ozone gas is radially ejected and perpendicularly merges with the axially flowing liquid within a tiny gap. The tiny diameter and gradually expanding structure of the aeration hole 802b-1 create a high Reynolds number flow field and a strong turbulent shear effect when the gas is ejected, generating micro / nano-sized ozone bubbles. Finally, a large amount of mixed flow containing ozone bubbles is sequentially injected into the first mixing chamber from the connecting pipe 803b. The process involves pressurization, depressurization, high-speed shearing, strong turbulence, and mixing through multiple primary throttling channels 803a, 804a, 804b, 805a, 805b, and 806a to form micro- and nano-bubbles. These bubbles then reach the fourth mixing chamber 806b and are finally ejected from the end cap outlet pipe 807a. This process agitates, oxygenates, oxidizes, sterilizes, and removes organic matter from the aquaculture wastewater. The large surface area of ​​the micro- and nano-bubbles allows the ozone in the bubbles to dissolve more easily and quickly in the water. Due to their small diameter and slow rising speed, the reaction time of the ozone in the bubbles in the water is prolonged, ensuring thorough mixing and reaction between the aquaculture wastewater and the ozone. Example

[0050] Please see Figure 1 and Figure 2 Based on the first specific embodiment, the fixing component 808 includes a front cover 808a that is fixedly sleeved on the outside of the liquid inlet pipe 801, and an n-shaped fixing bracket 808b that is rotatably connected to the outside of the end cover outlet pipe 807a. The fixing bracket 808b and the front cover 808a are connected by bolts.

[0051] The operation process of this embodiment is as follows: by using two bolts to connect the fixing frame 808b to the front cover 808a, the assembly of the combined micro-nano bubble generator 800 can be made more stable.

[0052] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A submersible jet ozone aerator for treating aquaculture wastewater, characterized in that, include: Oxygen cylinder (100), ozone generator (200), water tank (500), high-pressure water pump (600), water valve (700) and combined micro-nano bubble generator (800). The combined micro / nano bubble generator (800) includes a first generator (804), a second generator (805), and a third generator (806) connected sequentially along its own axial direction. An inlet end cap (803) is threaded onto the end of the first generator (804) opposite to the second generator (805). A liquid inlet pipe (801) is installed on the end of the inlet end cap (803) opposite to the first generator (804). The liquid inlet pipe (801) communicates with the first generator (804). An aeration assembly (802) is provided inside the liquid inlet pipe (801). An outlet end cap (807) is threaded onto the end of the third generator (806) away from the second generator (805). An end cap outlet pipe (807a) communicating with the outlet end cap (807) is fixedly connected to the end of the outlet end cap (807) away from the third generator (806). A fixing assembly (808) is provided on the outside of the first generator (804), the second generator (805) and the third generator (806). The aeration assembly (802) includes an L-shaped air inlet pipe (802a) fixedly connected inside the liquid inlet pipe (801). An aeration pipe (802b) is sleeved at one end of the air inlet pipe (802a) inside the liquid inlet pipe (801). There is a gap between the inner wall of the liquid inlet pipe (801) and the outer wall of the aeration pipe (802b). A plurality of through aeration holes (802b-1) are evenly opened on the side wall of the aeration pipe (802b).

2. The submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, A first mixing chamber (803a) is formed between the first generator (804) and the inlet end cap (803), a second mixing chamber (804b) is formed between the first generator (804) and the second generator (805), a third mixing chamber (805b) is formed between the second generator (805) and the third generator (806), and a fourth mixing chamber (806b) is formed between the third generator (806) and the outlet end cap (807).

3. The submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The centerline of the aeration hole (802b-1) is perpendicular to the centerline of the liquid inlet pipe (801), and the diameter of the aeration hole (802b-1) gradually increases from the air inlet pipe (802a) to the liquid inlet pipe (801).

4. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The liquid inlet pipe (801) includes a first pipe section (801a), a second pipe section (801b), and a third pipe section (801c) arranged sequentially along the axial direction, wherein the inner diameters of the first pipe section (801a), the second pipe section (801b), and the third pipe section (801c) gradually decrease in a stepped manner. The aeration holes (802b-1) of the air inlet pipe (802a) are at least partially located within the third pipe section (801c).

5. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The first generator (804), the second generator (805), and the third generator (806) are respectively provided with multiple uniformly distributed axially penetrating primary throttling channels (804a), secondary throttling channels (805a), and tertiary throttling channels (806a).

6. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 5, characterized in that, The primary throttling channel (804a), the secondary throttling channel (805a), and the tertiary throttling channel (806a) are all gourd-shaped, and the minimum aperture of the primary throttling channel (804a), the secondary throttling channel (805a), and the tertiary throttling channel (806a) decreases sequentially.

7. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The outlet of the oxygen cylinder (100) is connected to the inlet of the ozone generator (200). The outlet of the ozone generator (200) is connected to a gas valve (300). A shut-off valve (400) is installed on the other side of the outlet of the gas valve (300). The other side of the outlet of the shut-off valve (400) is connected to the air inlet pipe (802a). The inlet of the high-pressure water pump (600) is connected to the water tank (500) through a pipe. A water valve (700) is installed on the outlet of the high-pressure water pump (600). The other side of the outlet of the water valve (700) is connected to the liquid inlet pipe (801).

8. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The inlet end cap (803) is fixedly connected to a connecting pipe (803b) that communicates with the inlet end cap (803) at the end opposite to the first generator (804), and the liquid inlet pipe (801) is threaded into the inside of the connecting pipe (803b).

9. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The aeration pipe (802b) is externally fixedly connected to a stabilizing bracket (802c), and the stabilizing bracket (802c) is sandwiched between the liquid inlet pipe (801) and the inlet end cap (803).

10. A submersible jet ozone aerator for treating aquaculture wastewater according to claim 1, characterized in that, The fixing assembly (808) includes a front cover (808a) fixedly sleeved on the outside of the liquid inlet pipe (801), and an n-shaped fixing bracket (808b) rotatably connected to the outside of the end cover outlet pipe (807a). The fixing bracket (808b) and the front cover (808a) are connected by bolts.

Images