Unpowered dissolved oxygen water treatment device and method

Abstract

The present invention relates to the technical field of recirculating aquaculture, and in particular to a non-powered dissolved oxygen water treatment device and method, comprising a dissolved oxygen cylinder, a water inlet pipe communicating with the interior of the dissolved oxygen cylinder provided on the top sidewall of the dissolved oxygen cylinder, a water outlet pipe communicating with the interior of the dissolved oxygen cylinder provided on the bottom sidewall of the dissolved oxygen cylinder, a diversion hollow pipe provided inside the dissolved oxygen cylinder, an oxygen supply assembly for supplying oxygen into the diversion hollow pipe provided on the sidewall of the dissolved oxygen cylinder, an oxygen dissolving mechanism for dissolving oxygen in water provided inside the dissolved oxygen cylinder, the oxygen dissolving mechanism being communicated with the diversion hollow pipe. The present application helps to improve the oxygenation efficiency and effect of oxygenation equipment on water bodies, thereby reducing energy consumption during the water oxygenation process.

Description

Technical Field

[0001] The present invention relates to the technical field of circulating aquaculture, and in particular to a non-powered dissolved oxygen water treatment device and method. Background Art

[0002] Freshwater aquaculture is mostly carried out in static water bodies (such as ponds). During the aquaculture process, it is necessary to install oxygenation equipment in the static water to increase the density of dissolved oxygen per unit water volume, so that the aquatic products can obtain sufficient dissolved oxygen.

[0003] Existing aeration equipment mostly increases dissolved oxygen by stirring the water to ensure sufficient contact between the water surface and air. However, during use, the contact surface between the water and air is small and the contact time is short, resulting in low oxygenation efficiency and poor oxygenation effect. It is difficult to add sufficient oxygen to the middle and bottom layers of the water. Therefore, the aeration equipment needs to be operated for a long time to oxygenate the water. As a result, existing aeration equipment consumes a lot of energy during the water aeration process. Summary of the Invention

[0004] In order to improve the oxygenation efficiency and effect of oxygenation equipment on water bodies, thereby reducing energy consumption during the water oxygenation process, the present application provides a non-powered dissolved oxygen water treatment device and method.

[0005] This application provides a non-powered dissolved oxygen water treatment device and method, which adopts the following technical solutions:

[0006] A non-powered dissolved oxygen water treatment device and method, comprising a dissolved oxygen cylinder, a water inlet pipe communicating with the interior of the dissolved oxygen cylinder is provided on the top side wall of the dissolved oxygen cylinder, a water outlet pipe communicating with the interior of the dissolved oxygen cylinder is provided on the bottom side wall of the dissolved oxygen cylinder, a diversion hollow pipe is provided inside the dissolved oxygen cylinder, an oxygen supply assembly for supplying oxygen into the diversion hollow pipe is provided on the side wall of the dissolved oxygen cylinder, an oxygen dissolving mechanism for dissolving oxygen in water is provided inside the dissolved oxygen cylinder, and the oxygen dissolving mechanism is communicated with the diversion hollow pipe.

[0007] By adopting the above technical solution, water flows from the water inlet pipe into the dissolved oxygen cylinder. Under the action of its own gravity, the water can flow within the dissolved oxygen mechanism. The oxygen supply component can transport oxygen to the interior of the dissolved oxygen mechanism through the diversion hollow tube, thereby helping to improve the sufficient dissolution of water with oxygen as it flows within the dissolved oxygen mechanism without consuming additional energy. This application helps to improve the oxygenation efficiency and effect of the water, thereby reducing energy consumption during the water oxygenation process.

[0008] In a specific embodiment, the dissolved oxygen mechanism includes a flowing dissolved oxygen component and a stirring dissolved oxygen component. The flowing dissolved oxygen component is used to guide the flow of water in the dissolved oxygen cylinder so that the water dissolves with oxygen during the flow process. The stirring dissolved oxygen component is used to stir the water so that oxygen dissolves into the water.

[0009] By adopting the above technical solution, when the water flows into the dissolved oxygen cylinder, the flowing dissolved oxygen component can guide the flow of water inside the dissolved oxygen cylinder, which helps to improve the dissolution efficiency and dissolution effect of the water and the oxygen in the dissolved oxygen cylinder; the stirring dissolved oxygen component helps to stir the water during the flow of the water, thereby helping to improve the sufficiency of the dissolution of water and oxygen.

[0010] In a specific possible implementation scheme, the mobile dissolved oxygen component includes a filter plate and several baffles, several of the baffles are fixedly placed on the inner bottom wall of the dissolved oxygen cylinder, one side of several of the baffles is fixedly connected to the diversion hollow tube, and the side of several of the baffles away from the diversion hollow tube is fixedly connected to the inner side wall of the dissolved oxygen cylinder, and the bottom end of each baffle is provided with a flow hole for water flow, the filter plate is fixedly arranged above several of the baffles, and the filter plate and several of the baffles separate the inner bottom of the dissolved oxygen cylinder into several flow chambers, and the water outlet pipe is connected to one of the flow chambers.

[0011] By adopting the above technical solution, when water flows into the dissolved oxygen cylinder from the water inlet pipe, it passes downward through the filter plate under the action of its own gravity and flows into multiple flow chambers. When the water flows out of the water outlet pipe, under the action of its own gravity, the water in the multiple flow chambers gradually flows towards the flow chamber connected to the water outlet pipe. At the same time, the oxygen in the hollow diversion tube input by the oxygen supply component is diverted to the multiple flow chambers, allowing the water to dissolve with the oxygen in the flow chamber during its flow, which helps to improve the dissolution efficiency and effect of the water and the oxygen in the dissolved oxygen cylinder.

[0012] In a specific embodiment, the lengths of the plurality of flow holes are the same, and the heights of the plurality of flow holes gradually decrease as the distance from the water outlet pipe increases.

[0013] By adopting the above technical solution, the height setting of multiple flow holes helps to gradually increase the flow rate of water when it flows toward the flow cavity connected to the water outlet pipe, thereby helping to further improve the full dissolution of water with oxygen during the flow process.

[0014] In a specific possible implementation manner, a hemispherical interception filter is rotatably mounted on the filter plate, the diversion hollow tube passes through the interception filter, and the interception filter is rotatably connected to the side wall of the diversion hollow tube.

[0015] By adopting the above technical solution, the interception filter can initially intercept and filter impurities in the water flowing into the dissolved oxygen cylinder, thereby preventing impurities in the water from clogging the mesh holes on the filter plate, helping to ensure the smooth flow of water in the dissolved oxygen cylinder. At the same time, under the impact of the water, the interception filter can rotate, thereby helping to minimize the impact position of the water on the interception filter remaining unchanged, further helping to prevent impurities in the water from clogging the mesh holes on the interception filter, and helping to improve the interception filter's interception and filtration effect on impurities in the water.

[0016] In a specific embodiment, a cleaning scraper for cleaning the intercepting filter is provided on the inner wall of the dissolved oxygen cylinder, and the cleaning scraper is arranged to fit the outer surface of the intercepting filter on a side close to the intercepting filter.

[0017] By adopting the above technical solution, when the intercepting filter rotates, the cleaning scraper can scrape and clean the impurities intercepted and filtered on the surface of the intercepting filter, thereby helping to ensure the patency of the mesh of the intercepting filter and helping to further improve the intercepting and filtering effect of the intercepting filter on impurities in the water body.

[0018] In a specific possible implementation scheme, the diversion hollow tube is provided with several oxygen supply holes, and the several oxygen supply holes are all connected to one of the flow chambers. Each of the baffles is provided with an air vent for connecting the flow chambers on both sides of the baffle, and the air vent is used to supply oxygen circulation.

[0019] By adopting the above technical solution, the oxygen in the diversion hollow tube input into the oxygen supply component will flow into a flow cavity through several oxygen supply holes, and then flow into multiple adjacent flow cavities through the air holes, which helps to make the oxygen flow among the multiple flow cavities, thereby improving the uniformity of the oxygen concentration in the multiple flow cavities, and further helping to ensure the dissolution effect of water and oxygen in different flow cavities.

[0020] In a specific possible implementation scheme, the agitated flow dissolved oxygen component includes a separation mesh plate and a plurality of agitated flow spheres, the separation mesh plate is arranged in the flow cavity connected to the water outlet pipe, the separation mesh plate divides the flow cavity into two cavities distributed upper and lower, the plurality of agitated flow spheres are placed in the cavity located above, and the water outlet pipe is connected to the cavity located below.

[0021] By adopting the above technical solution, after the water passes through the filter plate, part of the water will flow into the cavity located above. In the process of the water passing through the cavity, the stirring ball will stir the water, causing the water to generate vortex, thereby helping to improve the complete dissolution of water and oxygen.

[0022] In a specific possible implementation scheme, the oxygen supply assembly includes an oxygen box, a gas storage tank and an oxygen delivery pipe. The oxygen box is fixedly mounted on the outer wall of the dissolved oxygen cylinder, the gas storage tank is arranged in the oxygen box, and the gas storage tank is provided with an oxygen flow meter for monitoring the oxygen flow rate and a regulating valve for adjusting the oxygen flow rate. One end of the oxygen delivery pipe is connected to the gas storage tank, and the end of the oxygen delivery pipe away from the gas storage tank is connected to the diversion hollow pipe.

[0023] By adopting the above technical solution, the gas storage tank can transport oxygen to the inside of the diversion hollow tube through the oxygen delivery pipe. The oxygen flow rate can be monitored by an oxygen flow meter and regulated by a regulating valve.

[0024] In a specific embodiment, a method for treating water with unpowered dissolved oxygen comprises the following steps:

[0025] Step 1: Install the device, install the unpowered dissolved oxygen water treatment device;

[0026] Step 2: oxygen input, inputting oxygen into the dissolved oxygen cylinder through the gas storage tank and the oxygen delivery pipe;

[0027] Step 3: Dissolve water and oxygen, using a flow dissolved oxygen component and a stirring dissolved oxygen component to stir and mix the water with oxygen in the dissolved oxygen cylinder;

[0028] Step 4: Discharge the water body, and discharge the water body after dissolving oxygen from the dissolved oxygen cylinder through the outlet pipe.

[0029] By adopting the above technical solution, water flows into the dissolved oxygen cylinder from the water inlet pipe, and the water can flow in the dissolved oxygen mechanism under the action of its own gravity. The air storage tank can input oxygen into the diversion hollow pipe through the oxygen delivery pipe, thereby transporting oxygen into the dissolved oxygen mechanism, which helps to improve the fullness of the water dissolving with oxygen when flowing in the dissolved oxygen mechanism, and does not require the consumption of additional energy, which helps to reduce energy consumption in the process of oxygenating the water.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. Through the arrangement of the oxygen supply assembly, the diversion hollow tube and the dissolved oxygen mechanism, the oxygen supply assembly can transport oxygen into the diversion hollow tube, thereby transporting oxygen into the dissolved oxygen mechanism, which helps to improve the sufficiency of the water dissolving with oxygen when flowing in the dissolved oxygen mechanism; at the same time, since the flow of the water in the dissolved oxygen mechanism is carried out under the action of its own gravity, the flow of the water does not require the consumption of additional energy, which helps to reduce the energy consumption of the water during the oxygenation process.

[0032] 2. Through the setting of the intercepting filter and the cleaning scraper, the intercepting filter helps to preliminarily intercept and filter the impurities in the water flowing into the dissolved oxygen cylinder, thereby preventing the impurities in the water from clogging the mesh holes on the filter plate, and helping to ensure the smooth flow of water in the dissolved oxygen cylinder; the cleaning scraper can scrape and clean the impurities on the surface of the intercepting filter when the intercepting filter rotates, thereby helping to ensure the patency of the mesh holes of the intercepting filter, and helping to further improve the intercepting and filtering effect of the intercepting filter on impurities in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0034] Figure 2 It is a cross-sectional view showing the specific internal structure of the dissolved oxygen cylinder.

[0035] Figure 3 It is a schematic diagram showing the specific internal structure of the oxygen tank.

[0036] Figure 4 It is a schematic diagram showing the specific structure of the stirred flow dissolved oxygen component.

[0037] Explanation of the accompanying symbols: 1. Dissolved oxygen cylinder; 2. Water inlet pipe; 3. Water outlet pipe; 4. Diverter hollow tube; 41. Oxygen supply hole; 5. Oxygen supply assembly; 51. Oxygen box; 52. Gas storage tank; 53. Oxygen delivery pipe; 6. Flow dissolved oxygen assembly; 61. Filter plate; 62. Baffle; 621. Flow hole; 622. Air vent; 7. Stirred flow dissolved oxygen assembly; 71. Separation mesh plate; 72. Stirred flow sphere; 8. Flow cavity; 9. Intercepting filter; 10. Cleaning scraper; 11. Cavity; 12. Oxygen flow meter; 13. Regulating valve; 14. Overflow pipe. DETAILED DESCRIPTION

[0038] The present application is further described in detail below with reference to the accompanying drawings.

[0039] The present application discloses a non-powered dissolved oxygen water treatment device, referring to Figure 1 , including a dissolved oxygen cylinder 1, a water inlet pipe 2 and an overflow pipe 14 are fixedly installed on the top side wall of the dissolved oxygen cylinder 1, the water inlet pipe 2 and the overflow pipe 14 are both connected to the interior of the dissolved oxygen cylinder 1, and the overflow pipe 14 is located above the water inlet pipe 2, and a water outlet pipe 3 connected to the interior of the dissolved oxygen cylinder 1 is fixedly installed on the bottom side wall of the dissolved oxygen cylinder 1.

[0040] Reference Figure 2 and Figure 3A diverter hollow tube 4 is fixedly installed at the inner center of the dissolved oxygen cylinder 1, and a plurality of vertically arranged oxygen supply holes 41 are opened in the lower half of the diverter hollow tube 4. An oxygen supply assembly 5 is provided on the outer wall of the dissolved oxygen cylinder 1. The oxygen supply assembly 5 includes an oxygen box 51, a gas storage tank 52 and an oxygen delivery pipe 53. The oxygen box 51 is fixedly installed on the outer wall of the dissolved oxygen cylinder 1, and the gas storage tank 52 is fixedly installed in the oxygen box 51. An oxygen flow meter 12 and a plurality of regulating valves 13 are fixedly installed on the gas storage tank 52. One end of the oxygen delivery pipe 53 is fixedly connected to the gas storage tank 52, and the other end of the oxygen delivery pipe 53 is fixedly connected to the diverter hollow tube 4.

[0041] Reference Figure 2 and Figure 3 Oxygen is fed into the oxygen delivery pipe 53 through the gas storage tank 52, and the flow of oxygen is monitored by the oxygen flow meter 12, so that the flow of oxygen is adjusted by the regulating valve 13, thereby helping to deliver a fixed flow of oxygen through the oxygen delivery pipe 53 to the diversion hollow pipe 4, and then delivered to the inside of the dissolved oxygen cylinder 1 through the oxygen delivery hole 41 on the diversion hollow pipe 4.

[0042] Reference Figure 2 and Figure 4 The inner bottom end of the dissolved oxygen cylinder 1 is provided with an oxygen dissolving mechanism, which includes a flow dissolved oxygen assembly 6. The flow dissolved oxygen assembly 6 includes a filter plate 61 and a plurality of baffles 62. The baffles 62 are fixedly mounted on the inner bottom wall of the dissolved oxygen cylinder 1. One side of each baffle 62 in the vertical direction is fixedly connected to the diversion hollow tube 4, and the other side of each baffle 62 in the vertical direction is fixedly connected to the inner side wall of the dissolved oxygen cylinder 1. The filter plate 61 is fixedly placed above the baffles 62. The filter plate 61 and the baffles 62 divide the inner bottom of the dissolved oxygen cylinder 1 into a plurality of flow chambers 8, one of which is connected to the water outlet pipe 3 and is connected to the plurality of oxygen supply holes 41.

[0043] Reference Figure 2 and Figure 4 When water flows into the dissolved oxygen cylinder 1 from the water inlet pipe 2, the water flows downward under the action of its own gravity, passes through the filter plate 61 and flows into the multiple flow chambers 8, then flows through the flow holes 621 toward the flow chamber 8 connected to the water outlet pipe 3, and finally flows out from the water outlet pipe 3.

[0044] Reference Figure 2 and Figure 4 An interception filter 9 is rotatably mounted on the top surface of the filter plate 61. The interception filter 9 is hemispherical in shape. The diversion hollow tube 4 passes through the interception filter 9 and is rotatably connected to the outer wall of the diversion hollow tube 4. A cleaning scraper 10 is fixedly mounted on the inner wall of the dissolved oxygen cylinder 1. The side of the cleaning scraper 10 close to the interception filter 9 is in contact with the outer surface of the interception filter 9.

[0045] Reference Figure 2 and Figure 4 Before the water passes through the filter plate 61, it will first impact the interception filter 9. The impact of the water will drive the rotation of the interception filter 9. At the same time, the interception filter 9 will initially intercept and filter the impurities in the water, helping to prevent the impurities in the water from clogging the mesh of the filter plate 61, helping to ensure the smooth flow of water in the dissolved oxygen cylinder 1. When the interception filter 9 rotates, the cleaning scraper 10 will scrape and clean the impurities on the surface of the interception filter 9, thereby helping to ensure the patency of the mesh of the interception filter 9 and helping to further improve the interception and filtration effect of the interception filter 9 on impurities in the water.

[0046] Reference Figure 2 and Figure 4 Each baffle 62 has an air vent 622 at its top end, connecting the flow chambers 8 on both sides of the baffle 62 and allowing oxygen to circulate. Each baffle 62 has a square-shaped flow hole 621 at its bottom end. The multiple flow holes 621 are of the same length, and their width gradually decreases as the distance from the water outlet pipe 3 increases.

[0047] Reference Figure 2 and Figure 4 As water flows through multiple flow chambers 8, oxygen within the diversion hollow tube 4 is transported to one flow chamber 8 through the plurality of oxygen delivery holes 41, and then flows through the air vents 622 to multiple flow chambers 8. This increases the oxygen concentration within each flow chamber 8, allowing the water to dissolve with the oxygen within the flow chamber 8 as it flows, thereby improving the efficiency and effectiveness of the dissolution of the water with the oxygen within the oxygen dissolving cylinder 1. As the water passes through the flow holes 621 of increasing height, its flow velocity gradually increases, further enhancing the complete dissolution of the water with oxygen during its flow.

[0048] Reference Figure 2 and Figure 4 The dissolved oxygen mechanism also includes a stirring flow dissolved oxygen assembly 7, which includes a partitioning mesh 71 and a plurality of stirring spheres 72. The partitioning mesh 71 is fixedly mounted horizontally within the flow chamber 8 connected to the outlet pipe 3, dividing the flow chamber 8 into two upper and lower cavities 11. In this embodiment, the stirring spheres 72 are ping-pong balls, which are movably placed in the upper cavity 11. The outlet pipe 3 is connected to the lower cavity 11.

[0049] Reference Figure 2 and Figure 4After the water passes through filter plate 61, some of it flows directly into cavity 11, where the ping-pong balls are placed. As the water passes through cavity 11, the balls agitate the water, increasing the contact area between the water and the oxygen in cavity 11. This helps improve the efficiency and completeness of the dissolution of the water and oxygen. The water, dissolved with oxygen, flows directly into cavity 11 below and out through outlet pipe 3.

[0050] The present application also discloses a water treatment method based on the above-mentioned unpowered dissolved oxygen water treatment device, comprising the following steps:

[0051] Step 1: Install the device. Install the unpowered dissolved oxygen water treatment device at a suitable location so that the water to be treated can flow from the water inlet pipe 2 into the dissolved oxygen cylinder 1 .

[0052] Step 2: Oxygen input. Oxygen is transported outward through the gas storage tank 52. The flow rate of oxygen is monitored by the oxygen flowmeter 12 and adjusted by the regulating valve 13. Thus, a fixed flow of oxygen is transported into the shunt hollow tube 4 through the oxygen delivery pipe 53. The oxygen is then transported to the inside of the dissolved oxygen cylinder 1 through the oxygen delivery hole 41 on the shunt hollow tube 4.

[0053] Step three, water and oxygen dissolve. After the water flows into the dissolved oxygen cylinder 1 from the water inlet pipe 2, the water flows downward under the action of its own gravity, passes through the filter plate 61 and flows into the multiple flow chambers 8, and then flows toward the flow chamber 8 connected to the water outlet pipe 3 through the flow hole 621; when the water flows in the multiple flow chambers 8, the oxygen filled in the flow chamber 8 will dissolve with the water; when the water flows into the cavity 11 where multiple ping-pong balls are placed, the multiple ping-pong balls will stir the water, so that the contact area between the water and the oxygen in the cavity 11 is increased, which helps to improve the dissolution efficiency and sufficiency of the water and oxygen.

[0054] Step 4: The water is discharged. The water dissolved with oxygen flows into the cavity 11 connected to the water outlet pipe 3 and is discharged from the dissolved oxygen cylinder 1 from the water outlet pipe 3 .

[0055] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A non-powered dissolved oxygen water treatment device, characterized in that: The invention comprises an oxygen dissolving cylinder (1), wherein a water inlet pipe (2) communicating with the interior of the oxygen dissolving cylinder (1) is provided on the top side wall of the oxygen dissolving cylinder (1), a water outlet pipe (3) communicating with the interior of the oxygen dissolving cylinder (1) is provided on the bottom side wall of the oxygen dissolving cylinder (1), a diversion hollow pipe (4) is provided inside the oxygen dissolving cylinder (1), an oxygen supply assembly (5) for supplying oxygen into the diversion hollow pipe (4) is provided on the side wall of the oxygen dissolving cylinder (1), an oxygen dissolving mechanism for dissolving oxygen into water is provided inside the oxygen dissolving cylinder (1), and the oxygen dissolving mechanism is communicated with the diversion hollow pipe (4); The dissolved oxygen mechanism comprises a flowing dissolved oxygen component (6) and a stirring dissolved oxygen component (7), wherein the flowing dissolved oxygen component (6) is used to guide the flow of water in the dissolved oxygen cylinder (1) so that the water is dissolved with oxygen during the flow, and the stirring dissolved oxygen component (7) is used to stir the water so that oxygen is dissolved in the water. The mobile dissolved oxygen assembly (6) comprises a filter plate (61) and a plurality of baffles (62). The plurality of baffles (62) are fixedly placed on the inner bottom wall of the dissolved oxygen cylinder (1). One side of the plurality of baffles (62) is fixedly connected to the diversion hollow tube (4). The side of the plurality of baffles (62) away from the diversion hollow tube (4) is fixedly connected to the inner side wall of the dissolved oxygen cylinder (1). The bottom end of each baffle (62) is provided with a flow hole (621) for water flow. The filter plate (61) is fixedly arranged above the plurality of baffles (62). The filter plate (61) and the plurality of baffles (62) divide the inner bottom of the dissolved oxygen cylinder (1) into a plurality of flow chambers (8). The water outlet pipe (3) is connected to one of the flow chambers (8).

2. The unpowered dissolved oxygen water treatment device according to claim 1, characterized in that: The lengths of the plurality of flow holes (621) are the same, and the heights of the plurality of flow holes (621) gradually decrease as the distance from the water outlet pipe (3) increases.

3. The unpowered dissolved oxygen water treatment device according to claim 1, characterized in that: A hemispherical interception filter (9) is rotatably mounted on the filter plate (61), the diversion hollow tube (4) passes through the interception filter (9), and the interception filter (9) is rotatably connected to the side wall of the diversion hollow tube (4).

4. The unpowered dissolved oxygen water treatment device according to claim 3, characterized in that: A cleaning scraper (10) for cleaning the intercepting filter (9) is provided on the inner wall of the dissolved oxygen cylinder (1), and the cleaning scraper (10) is arranged to fit the outer surface of the intercepting filter (9) on a side close to the intercepting filter (9).

5. The unpowered dissolved oxygen water treatment device according to claim 1, characterized in that: The diversion hollow tube (4) is provided with a plurality of oxygen supply holes (41), and the plurality of oxygen supply holes (41) are all connected to a flow cavity (8). Each of the baffles (62) is provided with an air vent (622) for connecting the flow cavity (8) on both sides of the baffle (62), and the air vent (622) is used for oxygen circulation.

6. The unpowered dissolved oxygen water treatment device according to claim 1, characterized in that: The agitation dissolved oxygen component (7) comprises a separation mesh plate (71) and a plurality of agitation spheres (72); the separation mesh plate (71) is arranged in the flow cavity (8) connected to the water outlet pipe (3); the separation mesh plate (71) divides the flow cavity (8) into two cavities (11) distributed upper and lower; the plurality of agitation spheres (72) are placed in the cavity (11) located upper; and the water outlet pipe (3) is connected to the cavity (11) located lower.

7. The unpowered dissolved oxygen water treatment device according to claim 1, characterized in that: The oxygen supply assembly (5) comprises an oxygen box (51), a gas storage tank (52) and an oxygen delivery pipe (53). The oxygen box (51) is fixedly mounted on the outer wall of the oxygen dissolving cylinder (1). The gas storage tank (52) is arranged in the oxygen box (51). The gas storage tank (52) is provided with an oxygen flow meter (12) for monitoring the oxygen flow rate and a regulating valve (13) for regulating the oxygen flow rate. One end of the oxygen delivery pipe (53) is in communication with the gas storage tank (52), and the end of the oxygen delivery pipe (53) away from the gas storage tank (52) is in communication with the diversion hollow pipe (4).

8. A treatment method based on the unpowered dissolved oxygen water treatment device according to claim 7, characterized in that: The following steps are involved: Step 1: Install the device, install the unpowered dissolved oxygen water treatment device; Step 2: oxygen input, oxygen is input into the dissolved oxygen cylinder (1) through the gas storage tank (52) and the oxygen delivery pipe (53); Step 3: dissolving water and oxygen, using the flowing dissolved oxygen component (6) and the stirring dissolved oxygen component (7) to stir and mix the water with oxygen in the dissolved oxygen cylinder (1); Step 4: Discharge the water body, and discharge the water body after dissolving oxygen through the water outlet pipe (3) out of the dissolved oxygen cylinder (1).

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