Device for preparing micro-nano bubble oxygen-enriched water

Abstract

The utility model discloses a device for preparing micro-nano bubble oxygen-enriched water, which comprises a barrel body, the upper part of the side wall of the barrel body is provided with a water inlet and an air inlet, the lower part is provided with an emptying port, the top is provided with a cover plate, the center of the bottom of the barrel body is provided with a high-speed water pump, and the water inlet of the high-speed water pump is provided with an oxygenation ceramic plate and an air cover; the oxygenation ceramic plate is connected with an external oxygen source or ozone source through an air inlet pipe, and a water outlet of the high-speed water pump is connected with the micro-nano bubble synergistic device and then sequentially connected with a front straight water outlet pipe, a semicircular bent water outlet pipe, a rear straight water outlet pipe and a right-angle bent water outlet pipe; one end of the water inlet pipe is arranged in the barrel body; and the emptying pipe is connected with the emptying port and is provided with an emptying valve. The micro-nano bubble oxygen-enriched water can be efficiently prepared, and the requirements of factory circulating water fish culture and the like are met.

Description

Technical Field

[0001] This utility model relates to the field of oxygen-enriched water preparation technology, and in particular to an apparatus for preparing micro-nano bubble oxygen-enriched water. Background Technology

[0002] In fields such as recirculating aquaculture systems for fish, the dissolved oxygen level in the water is crucial for the growth and health of farmed organisms. Traditional aeration methods suffer from problems such as large bubbles, low oxygen dissolution efficiency, and uneven gas-liquid mixing, making it difficult to meet the demands of modern aquaculture for efficient oxygenation. With technological advancements, micro-nano bubble technology has gradually gained attention due to its advantages such as significantly improving gas dissolution efficiency in water and increasing dissolved oxygen content. However, existing micro-nano bubble oxygen-enriched water preparation devices suffer from drawbacks such as complex structure, high cost, and unstable bubble generation, requiring urgent improvement. Utility Model Content

[0003] The purpose of this invention is to provide a device for preparing micro-nano bubble oxygen-enriched water, so as to solve the problems of low bubble generation efficiency, poor stability and insufficient gas-liquid mixing in the prior art, improve the preparation quality and efficiency of oxygen-enriched water, and meet the demand for high-efficiency oxygenation in scenarios such as factory-scale recirculating aquaculture.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a device for preparing micro-nano bubble oxygen-enriched water, comprising a barrel body, an inlet and an air inlet provided on the upper part of the side wall of the barrel body, an outlet provided on the lower part of the side wall of the barrel body, and a cover plate provided on the top of the barrel body, with a central hole at the center of the cover plate; a high-speed water pump is located at the center of the bottom of the barrel body, with an oxygen-enriching ceramic plate and an air hood at its inlet, the air hood being fixedly connected to the outer side wall of the high-speed water pump, the air hood enclosing the oxygen-enriching ceramic plate, the oxygen-enriching ceramic plate being connected to an external oxygen source or ozone source through an air inlet pipe passing through the air inlet, the air inlet pipe being equipped with a gas flow meter and an air inlet valve, and the water outlet of the high-speed water pump... The inlet is connected to the inlet of the micro-nano bubble enhancement device, and the outlet of the micro-nano bubble enhancement device is connected to the front straight water outlet pipe. The front straight water outlet pipe passes through the central hole and is connected to the semi-circular bend water outlet pipe through a union. The semi-circular bend water outlet pipe crosses the wall of the fish pond and enters the pond to connect with the rear straight water outlet pipe. The rear straight water outlet pipe is equipped with a water outlet valve and is connected to the right-angle bend water outlet pipe. The water outlet of the right-angle bend water outlet pipe is horizontally set and is set in a direction tangent to the inner side wall of the fish pond. The inlet pipe passes through the inlet, with one end placed inside the barrel and the other end passing through the wall of the fish pond and placed inside the fish pond. The inlet pipe is equipped with an inlet valve. The drain pipe is connected to the drain port and is equipped with a drain valve. The function of the air hood is to ensure that the micron-sized bubbles generated by the aeration of the oxygenating ceramic plate can smoothly enter the high-speed water pump along with the incoming water; the main function of the gas flow meter is to accurately control the amount of gas entering to ensure the stability of the oxygenation effect; the drain valve can be used to discharge impurities or sediment in the tank.

[0005] Furthermore, the high-speed water pump is a permanent magnet high-speed variable frequency water pump with a rotational speed of ≥6000 rpm. This high-speed operating water pump can provide powerful force to promote the initial mixing and shearing of gas and liquid.

[0006] Furthermore, the micro / nano bubble enhancement device is either a variable-diameter pipe assembly or a swirling liquid flow mixer. The variable-diameter pipe assembly, through alternating changes in pipe diameter, causes the gas-liquid mixture to undergo periodic changes in flow rate and pressure, thereby generating shearing, compression, and turbulence on the bubbles, achieving bubble refinement; the swirling liquid flow mixer utilizes the centrifugal force and shear force generated by the high-speed rotating fluid to break up the bubbles and fully mix them with the liquid to form micro / nano bubbles.

[0007] Furthermore, the inlet pipe is positioned 50-100 cm above the bottom of the side wall of the fish pond. This height setting avoids collecting impurities and sediments from the bottom of the pond, ensuring the quality of the water intake. The outlet pipe is positioned 15-25 cm above the bottom of the side wall of the fish pond. The prepared oxygen-enriched water is sprayed horizontally into the fish pond, forming a circulation. The micro-nano bubble water is evenly distributed in the fish pond, improving the oxygenation effect.

[0008] The beneficial effects of this utility model are as follows.

[0009] 1) High-efficiency bubble refinement: Through the synergistic effect of high-speed water pump and micro-nano bubble enhancement device, bubbles can be refined from 20-500 micrometers to 0.1-20 micrometers, which greatly increases the specific surface area of ​​bubbles and improves the dissolution efficiency of oxygen in water, thereby effectively increasing the dissolved oxygen content of water.

[0010] 2) Stable bubble generation: The air hood outside the oxygen-enriching ceramic plate and its specific installation position with the high-speed water pump ensure that the bubbles generated by aeration can stably enter the high-speed water pump, providing a reliable foundation for subsequent bubble refinement and oxygen-enriched water preparation.

[0011] 3) High adaptability: The device can draw water from the inlet pipe of the factory-scale recirculating aquaculture pond or the recirculating water system, and the micro-nano bubble enhancement device has two optional types, which can adapt to different water quality conditions and application scenarios, improving the versatility and flexibility of the device.

[0012] 4) Promotes optimization of the aquaculture environment: Returning the prepared micro-nano bubble oxygen-enriched water to the fishpond can significantly improve the dissolved oxygen environment of the aquaculture water, which is beneficial to the growth, development, and health of the cultured organisms. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the device for preparing micro-nano bubble oxygen-enriched water according to the present invention.

[0014] Figure 2 This is a partial structural schematic diagram of the device for preparing micro-nano bubble oxygen-enriched water according to the present invention.

[0015] Figure 3 This is a top view of the device for preparing micro-nano bubble oxygen-enriched water according to the present invention.

[0016] The diagram is labeled as follows: 1. Barrel body; 101. Water inlet; 102. Air inlet; 103. Exhaust outlet; 2. High-speed water pump; 3. Micro-nano bubble enhancement device; 4. Oxygenating ceramic plate; 5. Air hood; 6. Air inlet pipe; 7. Gas flow meter; 8. Air inlet valve; 9. Cover plate; 10. Water inlet pipe; 11. Water inlet valve; 12. Front straight water outlet pipe; 13. Union; 14. Semi-circular bend water outlet pipe; 15. Rear straight water outlet pipe; 16. Water outlet valve; 17. Right angle bend water outlet pipe; 18. Exhaust pipe; 19. Exhaust valve. Detailed Implementation

[0017] Example 1: As Figures 1-3As shown, an apparatus for preparing micro-nano bubble oxygen-enriched water includes a barrel 1. The upper part of the side wall of the barrel 1 has a water inlet 101 and an air inlet 102, and the lower part of the side wall has an exhaust port 103. A cover plate 9 is provided on the top of the barrel 1, and a central hole 901 is provided at the center of the cover plate 9. A high-speed water pump 2 is located at the center of the bottom of the barrel 1. An oxygen-enriching ceramic plate 4 and an air hood 5 are provided at its water inlet. The air hood 5 is fixedly connected to the outer side wall of the high-speed water pump 2, enclosing the oxygen-enriching ceramic plate 4. The oxygen-enriching ceramic plate 4 is connected to an external oxygen source through an air inlet pipe 6 passing through the air inlet 102. A gas flow meter 7 and an air inlet valve 8 are provided on the air inlet pipe 6. The outlet of the high-speed water pump 2 is connected to the inlet of a micro-nano bubble enhancement device 3. The outlet of the micro-nano bubble enhancement device 3 is connected to the front straight water outlet pipe 12. The front straight water outlet pipe 12 passes through the central hole 901 and is connected to the semi-circular bend water outlet pipe 14 through the union 13. The semi-circular bend water outlet pipe 14 crosses the wall of the fish pond and enters the pond to connect with the rear straight water outlet pipe 15. The rear straight water outlet pipe 15 is equipped with a water outlet valve 16. The rear straight water outlet pipe 15 is connected to the right-angle bend water outlet pipe 17. The water outlet of the right-angle bend water outlet pipe 17 is horizontally set and is set in a direction tangent to the inner side wall of the fish pond. The water inlet pipe 10 passes through the water inlet 101, with one end placed inside the barrel 1 and the other end passing through the wall of the fish pond and placed inside the fish pond. The water inlet pipe 10 is equipped with a water inlet valve 11. The drain pipe 18 is connected to the drain port 103 and is equipped with a drain valve 19.

[0018] The high-speed water pump 2 is a permanent magnet high-speed variable frequency water pump with a power of 750W and a speed of 10700 rpm; the gas flow meter 7 is adjusted to set the air intake to 5 liters / minute. The micro-nano bubble enhancement device 3 is a variable diameter pipe assembly; the port of the inlet pipe 10 in the fish pond is 80 cm above the bottom of the side wall of the fish pond, and the outlet port of the right-angle bend outlet pipe 17 is 20 cm above the bottom of the side wall of the fish pond.

[0019] Oxygen-enriched water preparation process: Open the air inlet valve 8, and draw air from the oxygen source through the air inlet pipe 6 and gas flow meter 7. The air is then aerated by the oxygen-enriching ceramic plate 4 to generate bubbles of 20-500 micrometers in size. At the same time, open the water inlet valve 11, and the water from the fish pond enters the tank 1 through the water inlet pipe 10. The water and bubbles generated by the aeration of the oxygen-enriching ceramic plate 4 enter the high-speed water pump 2 for initial mixing. The initially mixed gas-liquid mixture enters the variable diameter pipe group. Under the action of the change in the diameter of the variable diameter pipe group, the bubbles are continuously refined, and finally form micro-nano bubbles of 0.1-20 micrometers, thus preparing oxygen-enriched water. The prepared micro-nano bubble oxygen-enriched water enters the fish pond through the front straight water outlet pipe 12, the semi-circular bend water outlet pipe 14, the rear straight water outlet pipe 15, and the right-angle bend water outlet pipe 17.

[0020] After a period of operation and monitoring, the dissolved oxygen content in the fish ponds has significantly increased from 5 mg / L to 10 mg / L, and the farmed fish are growing well and are more active.

[0021] Example 2: Using the same device for preparing micro-nano bubble oxygen-enriched water according to this utility model, the difference from Example 1 is that a swirling liquid flow mixer is used as the micro-nano bubble enhancement device 3. The installation method of other components is basically the same as in Example 1. The speed of the high-speed water pump 2 is set to 20,000 rpm, the air intake is set to 8 liters / minute, the port of the water inlet pipe 10 in the fish pond is 70 cm above the bottom of the side wall of the fish pond, and the outlet port of the right-angle bend water outlet pipe 17 is 18 cm above the bottom of the side wall of the fish pond.

[0022] Oxygen-enriched water preparation process: Open the air inlet valve 8, and draw air from the oxygen source through the air inlet pipe 6 and gas flow meter 7. The air is then aerated by the oxygen-enriching ceramic plate 4 to generate bubbles of 20-500 micrometers in size. At the same time, open the water inlet valve 11, and the water from the fish pond enters the tank 1 through the water inlet pipe 10. The water then enters the high-speed water pump 2 together with the bubbles generated by the oxygen-enriching ceramic plate 4 for initial mixing. The initially mixed gas-liquid mixture enters the swirling liquid flow mixer. Under the high-speed rotation of the swirling liquid flow mixer, the gas and liquid are fully mixed, and the bubbles are broken and refined into micro-nano bubbles of 0.1-20 micrometers to form oxygen-enriched water. The prepared micro-nano bubble oxygen-enriched water enters the fish pond through the front straight water outlet pipe 12, the semi-circular bend water outlet pipe 14, the rear straight water outlet pipe 15, and the right-angle bend water outlet pipe 17.

[0023] After a period of operation and monitoring, the dissolved oxygen content in the fish pond increased from the initial 4.5 mg / L to 12 mg / L, the living environment of the farmed organisms was significantly improved, the incidence of diseases decreased, and the farming efficiency was improved.

[0024] As can be seen from the two specific embodiments above, the device for preparing micro-nano bubble oxygen-enriched water of this utility model, whether using a variable diameter pipe assembly or a swirling liquid flow mixer as a micro-nano bubble enhancement device, can effectively prepare high-quality micro-nano bubble oxygen-enriched water, significantly improve the dissolved oxygen content of the water, and provide a reliable oxygenation solution for fields such as factory-scale recirculating aquaculture.

[0025] The above description is only a specific embodiment of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. An apparatus for preparing oxygen-enriched water using micro / nano bubbles, characterized in that: The components include a barrel body (1), a high-speed water pump (2), a micro-nano bubble enhancement device (3), an oxygen-enriching ceramic plate (4), an air hood (5), an air inlet pipe (6), a gas flow meter (7), an air inlet valve (8), a cover plate (9), a water inlet pipe (10), a water inlet valve (11), a front straight water outlet pipe (12), a union (13), a semi-circular bend water outlet pipe (14), a rear straight water outlet pipe (15), a water outlet valve (16), a right-angle bend water outlet pipe (17), an empty pipe (18), and an empty valve (19). The upper side wall of the barrel body (1) is provided with a water inlet (101) and an air inlet. The barrel (1) has an outlet (102) and an exhaust port (103) on the lower side wall. The top of the barrel (1) has a cover plate (9) with a central hole (901) at the center. The high-speed water pump (2) is located at the center of the bottom of the barrel (1). Its inlet is equipped with an oxygen-enriching ceramic plate (4) and an air hood (5). The air hood (5) is fixedly connected to the outer side wall of the high-speed water pump (2). The air hood (5) encloses the oxygen-enriching ceramic plate (4). The oxygen-enriching ceramic plate (4) passes through the air inlet (102) through the air inlet pipe (6). Connected to an external oxygen or ozone source, the air inlet pipe (6) is equipped with a gas flow meter (7) and an air inlet valve (8). The outlet of the high-speed water pump (2) is connected to the inlet of the micro-nano bubble enhancement device (3). The outlet of the micro-nano bubble enhancement device (3) is connected to the front straight water outlet pipe (12). The front straight water outlet pipe (12) passes through the central hole (901) and is connected to the semi-circular bend water outlet pipe (14) through a union (13). The semi-circular bend water outlet pipe (14) crosses the wall of the fish pond and enters the pond to connect with the rear straight water outlet pipe (15). A water outlet valve (16) is provided on the water outlet pipe (15), and the straight water outlet pipe (15) is connected to the right-angle bend water outlet pipe (17). The water outlet of the right-angle bend water outlet pipe (17) is set horizontally and is set in a direction tangent to the inner side wall of the fish pond. The water inlet pipe (10) passes through the water inlet (101), with one end placed inside the barrel (1) and the other end passing through the wall of the fish pond and placed inside the fish pond. A water inlet valve (11) is provided on the water inlet pipe (10). The drain pipe (18) is connected to the drain port (103), and a drain valve (19) is provided on the drain pipe (18).

2. The apparatus for preparing micro / nano bubble oxygen-enriched water according to claim 1, characterized in that: The high-speed water pump (2) is a permanent magnet high-speed variable frequency water pump with a rotation speed ≥ 6000 rpm.

3. The apparatus for preparing micro / nano bubble oxygen-enriched water according to claim 1, characterized in that: The micro-nano bubble enhancement device (3) is a variable diameter tube assembly or a swirling liquid flow mixer.

4. The apparatus for preparing micro / nano bubble oxygen-enriched water according to claim 1, characterized in that: The inlet pipe (10) is 50-100 cm above the bottom of the side wall of the fish pond, and the outlet port of the right-angle bend outlet pipe (17) is 15-25 cm above the bottom of the side wall of the fish pond.

Images