Vertical strong solution micro-nano gas dissolving device

Abstract

The utility model discloses a vertical type strong solution micro -nano gas dissolving device, including base, the base both sides are equipped with first gas dissolving tank and second gas dissolving tank, first gas dissolving tank with second gas dissolving tank opposite side all are equipped with the air distribution subassembly for the even delivery air to the gas dissolving tank, first gas dissolving tank outer wall one side is connected with equal diameter tee, and the equal diameter tee lower side port is equipped with first water inlet pipe, and the other end of first water inlet pipe is connected with the elbow pipe, and the other end of elbow pipe is worn in first gas dissolving tank inside, to the first gas dissolving tank in -line delivery backflow water and carry out preliminary gas dissolving, the second water inlet pipe is connected between first gas dissolving tank with second gas dissolving tank, makes backflow water enter second gas dissolving tank secondary gas dissolving, and the water outlet pipe is connected with second gas dissolving tank far from second water inlet pipe one side, the utility model discloses, has the characteristics such as gas dissolving and gas dissolving efficiency high.

Description

Technical Field

[0001] This utility model relates to the technical field of reflux water treatment equipment, specifically a vertical strong dissolving micro-nano dissolved air device. Background Technology

[0002] In the field of reflux water treatment technology, air flotation is a widely used and highly efficient solid-liquid separation method. Its core lies in generating a large number of microbubbles, which adhere to the suspended matter in the reflux water to form a bubble-particle complex with a density less than that of water. This complex then rapidly floats to the water surface, achieving separation. In this process, the dissolved air tank plays a key role. Under a certain pressure, it forces air to dissolve in water to form dissolved air water, and then generates the required micro-nano bubbles through a decompression release device.

[0003] A published Chinese patent, publication number CN210065235U, discloses a dissolved air tank for an air flotation machine, including a dissolved air tank body with a water flow pipe horizontally running through it. One end of the water flow pipe extends into the interior of the dissolved air tank body. In practical applications, the existing horizontal single-cylinder dissolved air tank provided by this patent allows the water flow and air to complete only one contact and dissolution process within the single horizontal cylinder. Due to the limitations of the cylinder length and internal flow field distribution, the contact time between gas and liquid is short, and the mixing uniformity is insufficient. As a result, the air cannot be fully dissolved in the water flow, and some air is easily discharged directly from the dissolved air water outlet in the form of large bubbles, which reduces the capture efficiency of suspended particles in the subsequent air flotation process.

[0004] Therefore, it is necessary to design a vertical, highly efficient micro / nano dissolved gas device that can achieve sufficient gas dissolution. Utility Model Content

[0005] The purpose of this invention is to provide a vertical, highly soluble micro / nano dissolved gas device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a vertical strong dissolving micro-nano gas dissolving device, including a base, a first gas dissolving tank and a second gas dissolving tank are provided on both sides of the base, and a gas distribution component for uniformly conveying air into the gas dissolving tank is provided on the opposite side of the first gas dissolving tank and the second gas dissolving tank. One side of the outer wall of the first gas-dissolving tank is connected to an equal diameter tee. The lower end of the equal diameter tee is provided with a first water inlet pipe. The other end of the first water inlet pipe is connected to an elbow pipe. The other end of the elbow pipe passes through the inside of the first gas-dissolving tank to deliver return water into the first gas-dissolving tank for preliminary gas dissolution. A second inlet pipe is connected between the first dissolved air tank and the second dissolved air tank, so that the return water enters the second dissolved air tank for secondary dissolved air. An outlet pipe is connected to the side of the second dissolved air tank away from the second inlet pipe.

[0007] In one embodiment of this utility model, the air distribution assembly includes an air inlet pipe, a fixing plate, a U-shaped rubber strip, a U-shaped plate, an air distribution plate, and a perforated arc plate. An air inlet valve is provided at the outer end of the air inlet pipe, and the other end of the air inlet pipe is connected to and communicates with the fixing plate. The fixing plate, the U-shaped rubber strip, the U-shaped plate, the air distribution plate, and the perforated arc plate are arranged sequentially from left to right along the air flow direction and are fixed into an integral structure by several bolts. The air distribution plate is embedded and fixed in the groove in the middle of the U-shaped plate.

[0008] In one embodiment of the present invention, the base is provided with an air compressor for providing compressed air, and the end of the air inlet pipe near the air inlet valve is connected to the air delivery end of the air compressor through a hose. A pressure reducing valve for adjusting the high-pressure air to a pressure suitable for the dissolved air requirement and a flow meter for observing the air flow are connected in series on the hose.

[0009] In one embodiment of the present invention, both the elbow pipe and the second water inlet pipe are provided with nozzles at one end inside the tank body, for the purpose of spraying back water into the first dissolved gas tank and the second dissolved gas tank, and allowing it to rotate and flow along the inner wall of the tank body.

[0010] In one embodiment of the present invention, the first dissolved gas tank and the second dissolved gas tank are arranged vertically and symmetrically, and the tops of the first dissolved gas tank and the second dissolved gas tank are sealed with top covers by flanges, and the bottoms of the first dissolved gas tank and the second dissolved gas tank are provided with sampling valves.

[0011] In one embodiment of the present invention, the base is fitted with a cover at the corresponding position of the first dissolved gas tank and the second dissolved gas tank, and a box is provided between the covers. A mounting plate for installing a pressure reducing valve and a flow meter is fixedly connected to one side of the box.

[0012] In one embodiment of this utility model, the bending angle of the elbow pipe is 90°.

[0013] In one embodiment of this utility model, the box body is provided with an adjustment port on the side away from the mounting plate.

[0014] In one embodiment of the present invention, the two ends of the second water inlet pipe are respectively connected to the side wall of the first dissolved gas tank and the second dissolved gas tank near the upper end.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are: (1) By setting up double vertical dissolved air tanks and series return water channels, the secondary treatment process of preliminary dissolved air and deep dissolved air of the return water is realized. The return water first completes the initial air integration through the first dissolved air tank, and then enters the second dissolved air tank through the second water inlet pipe for secondary enhanced dissolved air. This greatly extends the contact time between the return water and the air, avoids the problem of insufficient dissolved air in a single process, significantly improves the overall dissolved air efficiency, and lays the foundation for the full reaction of micro-nano bubbles with pollutants in the subsequent process. (2) By setting up an air distribution component, the air distribution plate in the air distribution component can evenly disperse the compressed air delivered by the air compressor into micron-sized bubble particles. Then, the bubble distribution pattern is further optimized by the mesh arc plate, and finally, micro-nano bubbles with smaller diameter and more uniform distribution are generated. The bubbles can be evenly distributed inside the tank. At the same time, the nozzle makes the return water rotate at high speed along the inner wall of the tank to generate centrifugal force. After the shearing of the water flow, the bubbles are quickly dissolved in the water, thereby greatly improving the saturation of dissolved air water. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structural composition of this utility model; Figure 2 This is a schematic diagram of the water distribution component structure of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a diagram of the internal structure of this utility model; Figure 5 This is an isometric view of the present invention; In the diagram: 10. Base; 11. Cover; 12. Box body; 122. Adjustment port; 121. Mounting plate; 20. First dissolved air tank; 21. Equal diameter tee; 22. First water inlet pipe; 23. Elbow pipe; 30. Second dissolved air tank; 31. Second water inlet pipe; 32. Water outlet pipe; 40. Air distribution assembly; 41. Air inlet pipe; 411. Air inlet valve; 42. Fixing plate; 43. U-shaped rubber strip; 44. U-shaped plate; 45. Air distribution plate; 46. Mesh arc plate; 50. Air compressor; 51. Hose; 60. Pressure reducing valve; 70. Flow meter; 80. Nozzle; 90. Top cover; 100. Sampling valve. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0018] This utility model provides a technical solution: a vertical strong-dissolving micro-nano gas dissolving device, including a base 10, with a first gas dissolving tank 20 and a second gas dissolving tank 30 on both sides of the base 10. Each of the first and second gas dissolving tanks 20 has an air distribution component 40 on its opposite side for uniformly supplying air into the tank. A tee of equal diameter 21 is connected to one side of the outer wall of the first gas dissolving tank 20. A first water inlet pipe 22 is located at the lower end of the tee of equal diameter 21. The other end of the first water inlet pipe 22 is connected to an elbow pipe 23, which passes through the interior of the first gas dissolving tank 20 to supply return water for preliminary gas dissolution. A second... The inlet pipe 31 allows the return water to enter the second dissolved air tank 30 for secondary dissolved air. The second dissolved air tank 30 is connected to the outlet pipe 32 on the side away from the second inlet pipe 31. The return water first enters the first dissolved air tank 20 through the first inlet pipe 22 and the elbow pipe 23, where it undergoes preliminary dissolution with the air supplied by the air distribution component 40. Then, it enters the second dissolved air tank 30 through the second inlet pipe 31 for secondary deep dissolved air. Subsequently, the dissolved air water after secondary dissolved air is discharged from the outlet pipe 32. The dual dissolved air tank series design extends the contact time between air and return water, resulting in more thorough dissolution. Compared with the traditional single-tank dissolved air device, the dissolved air saturation is significantly improved, providing higher quality dissolved air water for subsequent processes and effectively enhancing the removal capacity of pollutants.

[0019] The air distribution assembly 40 includes an air inlet pipe 41, a fixing plate 42, a U-shaped rubber strip 43, a U-shaped plate 44, an air distribution plate 45, and a perforated arc plate 46. An air inlet valve 411 is provided at the outer end of the air inlet pipe 41. The air inlet valve 411 allows for flexible adjustment of the air intake volume, preventing excessive air intake from causing bubble accumulation and overflow. The other end of the air inlet pipe 41 is connected to and communicates with the fixing plate 42. The fixing plate 42, U-shaped rubber strip 43, U-shaped plate 44, air distribution plate 45, and perforated arc plate 46 are arranged sequentially from left to right along the airflow direction and are fixed together as a single structure by several bolts. This overall structural design, on the one hand, uses the U-shaped rubber strip 43 to fill the gaps between components, forming a reliable sealing effect and preventing air leakage from the component connections during transport. This ensures that all the compressed air output by the air compressor 50 can be used for bubble generation, reducing air waste. On the other hand, it prevents individual components from shifting due to backflow water impact, reducing the probability of component failure. The air distribution plate 45 is embedded and fixed in the groove in the middle of the U-shaped plate 44; the compressed air delivered by the air inlet pipe 41 can be separated into micro-nano bubble particles through the micropores on the air distribution plate 45, so as to achieve fine dispersion of air. The mesh arc plate 46 can perform secondary uniform dispersion and guidance of the bubbles discharged from the air distribution plate 45. The arc structure guides the bubbles to diffuse along the inner wall of the dissolved gas tank to the whole area of ​​the tank, so as to avoid the accumulation of bubbles in the tank.

[0020] The base 10 is equipped with an air compressor 50 for providing compressed air. The end of the air inlet pipe 41 near the air inlet valve 411 is connected to the air output end of the air compressor 50 through a hose 51. A pressure reducing valve 60 for adjusting the high-pressure air to the pressure required for dissolved air and a flow meter 70 for observing the air flow are connected in series on the hose 51. The air compressor 50 continuously outputs sufficient air, which is delivered to the inside of the tank through the hose 51 and the air inlet pipe 41. The pressure reducing valve 60 and the flow meter 70 connected in series on the hose 51 form a dual control mechanism for pressure regulation and flow monitoring. The pressure reducing valve 60 can accurately adjust the high-pressure air output by the air compressor 50 to the pressure value required for dissolved air, while the flow meter 70 can display the air intake flow in real time. The operator can adjust the air intake volume through the air inlet valve 411 according to the air intake flow to make the air intake volume accurately match the return water treatment volume.

[0021] Both the elbow pipe 23 and the second water inlet pipe 31 are equipped with nozzles 80 at one end inside the tank body. These nozzles are used to spray the return water into the first dissolved air tank 20 and the second dissolved air tank 30, and allow it to rotate and flow along the inner wall of the tank. The nozzles 80 allow the return water to enter the tank in a spray manner. Combined with the pressure of the return water itself, a high-speed jet is formed. With the cylindrical structure of the tank body, the return water forms a stable rotating flow along the inner wall. The high-speed rotating return water will generate a strong centrifugal force inside the tank. Through the shearing of the water flow, the micro-nano bubbles released by the air distribution component 40 are evenly dispersed throughout the water body, preventing the bubbles from accumulating locally or floating and dissipating.

[0022] The first dissolved air tank 20 and the second dissolved air tank 30 are arranged vertically and symmetrically. Compared with the traditional horizontal dissolved air tank, the vertical structure changes the space occupied by the equipment from a planar extension to vertical stacking, which greatly reduces the required floor space of the installation site and improves the spatial adaptability of the device. The tops of the first dissolved air tank 20 and the second dissolved air tank 30 are sealed with top covers 90 through flanges. The sealing structure of the top covers 90 can effectively prevent pressure leakage inside the tank, avoid the escape of bubbles due to pressure loss, and at the same time, isolate external dust and impurities from entering the tank, preventing external pollutants from mixing into the return water and affecting the quality of the treated water. The bottoms of the first dissolved air tank 20 and the second dissolved air tank 30 are equipped with sampling valves 100. During the operation of the device, return water samples can be collected through the sampling valves 100 after the initial dissolved air in the first dissolved air tank 20 and after the secondary dissolved air in the second dissolved air tank 30, respectively. By detecting parameters such as dissolved air saturation in the samples, the effectiveness of the two-stage dissolved air process can be directly judged.

[0023] The base 10 is fitted with a cover 11 at the corresponding positions of the first dissolved gas tank 20 and the second dissolved gas tank 30. A box 12 is provided between the cover 11. A mounting plate 121 for installing the pressure reducing valve 60 and the flow meter 70 is fixedly connected to one side of the box 12. The cover 11 and the box 12 can effectively protect the main structure of the dissolved gas tank, and can isolate the dissolved gas tank from damage caused by external collisions and impacts. At the same time, it can prevent external pollutants such as dust and gas from adhering to the outer wall of the dissolved gas tank. The mounting plate 121 provides a fixed mounting carrier for the pressure reducing valve 60 and the flow meter 70.

[0024] The bending angle of the elbow 23 is 90°. During the turning process, the elbow 23 with a 90° bend can make the return water form a certain initial swirling velocity. When the return water flows along the tank wall through the nozzle 80, this initial velocity can help the return water form a more stable annular swirling flow state in the tank.

[0025] The housing 12 is provided with an adjustment port 122 on the side away from the mounting plate 121; the setting of the adjustment port 122 allows the operator to adjust the air intake valve 411 through the adjustment port 122 without disassembling the housing 12, thus shortening the debugging time of the device.

[0026] The two ends of the second water inlet pipe 31 are respectively connected to the upper side walls of the first gas dissolving tank 20 and the second gas dissolving tank 30. The return water needs to undergo gas dissolving treatment in the first gas dissolving tank 20 first, and then be discharged from the upper side wall of the first gas dissolving tank 20 through the second water inlet pipe 31, and then transported to the upper side wall of the second gas dissolving tank 30 to enter the tank. This avoids the situation where the return water flows directly into the second gas dissolving tank 30 without being dissolved in the first gas dissolving tank 20, and ensures that the return water has completed the initial gas dissolving before entering the second gas dissolving tank 30, laying the foundation for the subsequent secondary gas dissolving.

[0027] Working principle: The air compressor 50 continuously generates compressed air, which is delivered through the hose 51 and passes through the pressure reducing valve 60 and the flow meter 70 in sequence. The pressure reducing valve 60 adjusts the air pressure to the optimal value required for the dissolved air process, while the flow meter 70 monitors the intake flow rate in real time. The operator can accurately adjust the intake volume through the intake valve 411 according to the displayed value. The regulated compressed air enters the intake pipe 41 of the air distribution assembly 40. After passing through the fixed plate 42, the air is guided to the air distribution plate 45 by the sealing action of the U-shaped rubber strip 43. The compressed air delivered by the intake pipe 41 is separated into micro-nano bubble particles through the micropores on the air distribution plate 45. Then, it is further dispersed and guided by the mesh arc plate 46, so that the bubbles are evenly diffused along the inner wall of the tank to the entire cavity. Meanwhile, the return water to be treated enters from the equal diameter tee 21 and flows into the first water inlet pipe 22. After passing through the 90° elbow pipe 23 and the nozzle 80 at its end, the return water enters the first dissolved air tank 20 in a swirling state along the wall. In the tank, the return water is fully mixed with the micro-nano bubbles released by the air distribution component 40 to complete the initial dissolved air process. Subsequently, the initial dissolved air water enters the second dissolved air tank 30 through the second inlet pipe 31 and its nozzle 80 in the same wall-mounted swirling manner for secondary deep dissolved air, further extending the gas-liquid contact time and increasing the dissolved air saturation. Finally, the high-efficiency dissolved air water is discharged through the outlet pipe 32 and enters the subsequent mixing pipe to mix with the sewage.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0029] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, 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 a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical, high-solution micro / nano gas-dissolving device, comprising a base (10), characterized in that: The base (10) is provided with a first dissolved gas tank (20) and a second dissolved gas tank (30) on both sides. The first dissolved gas tank (20) and the second dissolved gas tank (30) are provided with an air distribution component (40) for uniformly conveying air into the dissolved gas tank on opposite sides. One side of the outer wall of the first gas-dissolving tank (20) is connected to an equal diameter tee (21). The lower port of the equal diameter tee (21) is provided with a first water inlet pipe (22). The other end of the first water inlet pipe (22) is connected to an elbow pipe (23). The other end of the elbow pipe (23) passes through the inside of the first gas-dissolving tank (20) to deliver return water into the first gas-dissolving tank (20) for preliminary gas dissolution. A second water inlet pipe (31) is connected between the first dissolved air tank (20) and the second dissolved air tank (30) so that the return water enters the second dissolved air tank (30) for secondary dissolved air. A water outlet pipe (32) is connected to the side of the second dissolved air tank (30) away from the second water inlet pipe (31).

2. The vertical strong dissolving micro / nano gas dissolving device according to claim 1, characterized in that: The air distribution assembly (40) includes an air inlet pipe (41), a fixing plate (42), a U-shaped rubber strip (43), a U-shaped plate (44), an air distribution plate (45), and a perforated arc plate (46). The outer end of the air inlet pipe (41) is provided with an air inlet valve (411). The other end of the air inlet pipe (41) is connected to and communicates with the fixing plate (42). The fixing plate (42), the U-shaped rubber strip (43), the U-shaped plate (44), the air distribution plate (45), and the perforated arc plate (46) are arranged sequentially from left to right along the air flow direction and are fixed together as an integral structure by several bolts. The air distribution plate (45) is embedded and fixed in the groove in the middle of the U-shaped plate (44).

3. The vertical strong dissolving micro / nano gas dissolving device according to claim 2, characterized in that: The base (10) is provided with an air compressor (50) for providing compressed air. The end of the air inlet pipe (41) near the air inlet valve (411) is connected to the air delivery end of the air compressor (50) through a hose (51). A pressure reducing valve (60) for adjusting the high-pressure air to the pressure required for dissolved air and a flow meter (70) for observing the air flow are connected in series on the hose (51).

4. The vertical strong dissolving micro / nano gas dissolving device according to claim 1, characterized in that: The elbow pipe (23) and the second water inlet pipe (31) are both equipped with nozzles (80) at one end inside the tank body, which are used to make the return water spray into the first dissolved air tank (20) and the second dissolved air tank (30) and rotate and flow along the inner wall of the tank body.

5. The vertical strong dissolving micro / nano gas dissolving device according to claim 1, characterized in that: The first dissolved gas tank (20) and the second dissolved gas tank (30) are arranged vertically and symmetrically. The top of the first dissolved gas tank (20) and the second dissolved gas tank (30) are both sealed with a top cover (90) by a flange. The bottom of the first dissolved gas tank (20) and the second dissolved gas tank (30) are both provided with a sampling valve (100).

6. A vertical, high-solution micro / nano gas-dissolving device according to claim 1 or 3, characterized in that: The base (10) is fitted with a cover (11) at the corresponding position of the first dissolved gas tank (20) and the second dissolved gas tank (30). A box (12) is provided between the cover (11). A mounting plate (121) for installing a pressure reducing valve (60) and a flow meter (70) is fixedly connected to one side of the box (12).

7. The vertical strong dissolving micro / nano gas dissolving device according to claim 1, characterized in that: The bending angle of the elbow (23) is 90°.

8. A vertical, high-solution, micro / nano-scale gas-dissolving device according to claim 6, characterized in that: The box (12) has an adjustment port (122) on the side away from the mounting plate (121).

9. A vertical, high-solution, micro / nano-scale gas dissolving device according to claim 1, characterized in that: The two ends of the second water inlet pipe (31) are respectively connected to the side wall near the upper end of the first dissolved gas tank (20) and the second dissolved gas tank (30).

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