Horizontal dissolved air apparatus

Abstract

The utility model relates to a horizontal dissolved air device relates to the field of dissolved air device. This technology scheme makes the gas dispersed into the water flow in advance to complete the initial solution through the integration of the porous air inlet pipe and the water inlet pipe, the air cavity seat of the air distribution membrane plate assembly is stable, the membrane plate refines the air bubble, the porous plate uniformly distributes the air outlet, and the spiral water flow is collided to realize the depth dissolved air. Moreover, the water inlet nozzle is attached to the wall and is bent and is designed with an r angle, forms the high -speed spiral flow field to strengthen the disturbance, breaks the air bubble gathering, guides the water flow to butt joint the air distribution area, prolongs the gas -liquid contact time. In addition, the bottom emptying pipe is convenient for shutdown emptying and overhauling, the flange is matched with the flange cover to realize reliable sealing, reduces the maintenance cost, the overall device structure is compact, the air bubble is refined sufficiently, can stably output high -quality saturated dissolved air water, is applicable to all kinds of need high -efficient dissolved air scene.

Description

Technical Field

[0001] This utility model relates to the field of dissolved gas device technology, and in particular to a horizontal dissolved gas device. Background Technology

[0002] Dissolved air (DAS) systems are used in wastewater treatment, water purification, and flotation separation. Their function is to efficiently dissolve gases in water to form saturated dissolved air water, which then adsorbs impurities through air bubbles to achieve solid-liquid separation or water quality improvement. With increasingly stringent environmental requirements and the expansion of industrial processing scale, the market has placed higher demands on the dissolving efficiency, operational stability, and energy consumption control of DAS systems.

[0003] Existing horizontal dissolved air treatment (DAT) devices have the following shortcomings: First, the gas distribution structure is mostly a single air inlet pipe, which easily causes the gas to agglomerate into large bubbles after being directly introduced into the water, resulting in poor aeration. Second, water flow can easily form stagnant water zones within the pipe, and some water is discharged before fully contacting the gas. Third, the misalignment of the water inlet and gas distribution nodes leads to insufficient gas-liquid mixing intensity, requiring the addition of an agitator, which increases equipment energy consumption and maintenance costs. Fourth, the nozzle design of existing horizontal DATT devices is mostly direct injection, resulting in disordered water flow diffusion, which reduces the dissolved air efficiency and easily impacts the pipe wall, causing energy loss. Summary of the Invention

[0004] The purpose of this invention is to provide a horizontal dissolved gas device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A horizontal dissolved gas apparatus includes a tube arranged in a horizontal direction, and the horizontal dissolved gas apparatus further includes: A water inlet pipe is radially disposed on one side of the top of the pipe body, with its inlet end located on the outside of the pipe body and its outlet end extending to the inside of the pipe body; A multi-hole air inlet pipe is provided on the outer wall of the water inlet pipe, with its air inlet end located on the outside of the water inlet pipe and its air outlet end extending to the inside of the water inlet pipe. Several air outlet holes are arranged on the inner wall of the water inlet pipe. A dissolved air water outlet pipe, which is radially disposed on the other side of the top of the pipe body; and An air-distributing membrane plate assembly is disposed in the middle of the pipe body and located between the water inlet pipe and the dissolved air water outlet pipe, with its air inlet end located on the outside of the pipe body and its air outlet end located on the inside of the pipe body; The water inlet pipe is provided with a water inlet nozzle at its outlet end. The spray end of the water inlet nozzle is bent toward the inner wall of the pipe body, so that the spray end of the water inlet nozzle is located close to the inner wall of the pipe body.

[0006] In some embodiments, the spray end of the water inlet nozzle forms an angle r with the axial direction of the water inlet pipe, so that the spray end of the water inlet nozzle is biased toward the direction of the dissolved air water outlet pipe.

[0007] In some implementations, the r-angle ranges from 5 to 45 degrees.

[0008] In some embodiments, the air-distribution membrane panel assembly includes: An air distribution inlet pipe has its inlet end located on the outside of the pipe body and its outlet end located on the inside of the pipe body; An air chamber seat, the air inlet end of which is connected to the air outlet end of the air distribution inlet pipe; A diaphragm plate, the air inlet of which is connected to the air outlet of the air chamber seat; and A perforated plate, the air inlet end of which is connected to the air outlet end of the membrane plate; The porous plate has several evenly spaced air outlets, and the air outlet end of the porous plate faces the axis of the tube.

[0009] In some embodiments, a bottom drain pipe is provided at the bottom of the pipe body.

[0010] In some embodiments, flanges are provided at both ends of the pipe body.

[0011] In some embodiments, a flange cap is provided on the outside of the flange.

[0012] The beneficial effects of the technical solution provided by this utility model include at least the following: This technical solution integrates a porous air inlet pipe and a water inlet pipe, allowing the gas to disperse and dissolve in the water flow before initial dissolution. The air chamber seat of the air distribution membrane plate assembly stabilizes the pressure, the membrane plate refines bubbles, and the porous plate evenly distributes the gas, achieving deep dissolution through the counter-current of the spiral water flow. Furthermore, the wall-mounted bend and r-angle design of the water inlet nozzle creates a high-speed spiral flow field that enhances disturbance, breaks up bubble aggregation, guides the water flow to the air distribution area, and extends the gas-liquid contact time. In addition, the bottom drain pipe facilitates shutdown venting and maintenance, and the flange with a flange cap ensures reliable sealing, reducing maintenance costs. The overall device has a compact structure, achieves thorough bubble refinement, and can stably output high-quality saturated dissolved air water, making it suitable for various scenarios requiring efficient dissolved air. Attached Figure Description

[0013] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.

[0014] Figure 1 The diagram shows a front view of a horizontal dissolved air apparatus provided in an exemplary embodiment of the present invention.

[0015] Figure 2 A side view schematic diagram of a horizontal dissolved air device provided in an exemplary embodiment of the present invention is shown.

[0016] In the picture: 1. Flange end cap; 2. Flange; 3. Water inlet pipe; 4. Multi-hole air intake pipe; 5. Water inlet nozzle; 6. Pipe body; 7. Air-supported membrane panel assembly; 8. Dissolved air water outlet pipe; 9. Bottom drain pipe; 10. Air intake pipe; 11. Air chamber seat; 12. Membrane sheet; 13. Perforated plate. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this specification, identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings of this utility model, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions towards or away from a specific component, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This diagram shows a front view of a horizontal dissolved air apparatus provided in an exemplary embodiment of the present invention. Figure 2This diagram shows a side view of a horizontal dissolved air device provided in an exemplary embodiment of the present invention. The device includes a horizontally oriented tube 6; a water inlet pipe 3 radially disposed on one side of the top of the tube 6, with its inlet end located on the outside of the tube 6 and its outlet end extending to the inside of the tube 6; and a porous air inlet pipe 4 disposed on the outer wall of the water inlet pipe 3, with its air inlet end located on the outside of the water inlet pipe 3 and its outlet end extending to the inside of the water inlet pipe 3. The tube body 6 has several air outlets arranged on the top; a dissolved air water outlet pipe 8 is radially arranged on the other side of the top of the tube body 6; and an air distribution membrane plate assembly 7 is arranged in the middle of the tube body 6 and between the water inlet pipe 3 and the dissolved air water outlet pipe 8, with its air inlet end located on the outside of the tube body 6 and its air outlet end located on the inside of the tube body 6; wherein, the water outlet end of the water inlet pipe 3 is provided with a water inlet nozzle 5, and the spray end of the water inlet nozzle 5 is bent toward the inner wall of the tube body 6, so that the spray end of the water inlet nozzle 5 is located close to the inner wall of the tube body 6.

[0021] In this embodiment, the horizontally positioned pipe 6 provides ample and stable space for gas-liquid mixing. The water inlet pipe 3 is radially positioned at the top of the pipe 6, with its outlet extending deep into the pipe 6, allowing water to directly enter the mixing area. Gas introduced through the porous air inlet pipe 4 is dispersed into microbubbles through the air outlet holes in the pipe wall, directly merging with the incoming water flow from the water inlet pipe 3 to achieve initial gas dissolution. The water inlet nozzle 5, bent close to the pipe wall, allows the water flow to adhere to the wall and form a spiral motion, expanding the contact range between the water flow and the pipe 6. Furthermore, centrifugal force enhances water turbulence, breaking up bubble aggregation. The gas distribution membrane assembly 7 is placed between the water inlet pipe 3 and the dissolved air water outlet pipe 8, forming a secondary gas distribution node. While supplementing gas, it utilizes the spiral motion of the water flow to enhance gas-liquid cutting and mixing.

[0022] In some embodiments, see Figure 1 and Figure 2 The spray end of the water inlet nozzle 5 forms an angle r with the axis of the water inlet pipe 3, causing the spray end of the water inlet nozzle 5 to be biased toward the direction of the dissolved air water outlet pipe 8. Optionally, the range of the angle r is 5-45 degrees.

[0023] In this embodiment, the r-angle formed axially by the water inlet nozzle 5 and the water inlet pipe 3 guides the water flow direction, deflecting the spray end towards the dissolved air water outlet pipe 8. This allows the water flow to better match the flow field path within the device as it spirals downwards along the wall, reducing ineffective backflow and improving water delivery efficiency. Furthermore, this allows the water flow to more efficiently converge with the bubbles ejected from the air distribution film assembly 7, extending the air-water contact path and further improving the bubble dissolution rate.

[0024] In some embodiments, see Figure 1 and Figure 2The air distribution membrane assembly 7 includes: an air distribution inlet pipe 10, with its inlet end located on the outside of the pipe body 6 and its outlet end located on the inside of the pipe body 6; an air chamber seat 11, with its inlet end connected to the outlet end of the air distribution inlet pipe 10; a membrane plate 12, with its inlet end connected to the outlet end of the air chamber seat 11; and a perforated plate 13, with its inlet end connected to the outlet end of the membrane plate 12; wherein the perforated plate 13 has a plurality of evenly spaced air outlet holes, and the outlet end of the perforated plate 13 faces the axis of the pipe body 6.

[0025] In this embodiment, the gas inlet pipe 10 serves as a gas delivery channel, introducing external gas into the tube body 6. The gas chamber seat 11 receives the gas and forms a pressure-stabilizing space, preventing uneven gas distribution caused by gas inlet fluctuations. The microporous structure of the membrane plate 12 can cut the gas into tiny bubbles, significantly increasing the gas-water contact area. The uniformly arranged air outlet holes of the porous plate 13 ensure that the refined bubbles are evenly distributed in a diffuse manner, and its orientation towards the axis of the tube body 6 allows the bubbles to mix with the spiraling water flow inside the tube body 6, enhancing the contact effect.

[0026] In some embodiments, see Figure 1 and Figure 2 The bottom of the pipe body 6 is provided with a bottom drain pipe 9. Both ends of the pipe body 6 are provided with flanges 2, and flange caps 1 are provided on the outside of the flanges 2.

[0027] In this embodiment, the bottom drain pipe 9 is used to drain residual water when the machine is stopped, and can also be quickly emptied during maintenance to facilitate internal cleaning and component repair. The flanges 2 at both ends of the pipe body 6, together with the outer flange caps 1, can achieve a seal on the pipe body 6.

[0028] Next, the working principle of a horizontal dissolved gas device involved in the embodiments of this utility model will be explained.

[0029] First, high-pressure water is continuously injected into the device as a dissolved air carrier through the water inlet pipe 3. At the same time, the porous air inlet pipe 4 disperses the high-pressure air into a large number of tiny bubbles through the densely distributed air outlet holes on the pipe wall and fills the flowing water. The gas and water undergo initial mixing inside the water inlet pipe 3 to form a gas-liquid mixture, which is then ejected at high speed through the water inlet nozzle 5. This is the first dissolved air process. Secondly, through the structural design of the water inlet nozzle 5 bending towards the inner wall of the pipe body 6, the ejected gas-liquid mixture impacts the inner wall of the pipe body 6 in a wall-attached posture, and the kinetic energy is converted into the power of spiral motion, forming a stable high-speed spiral flow field; the centrifugal force generated by the spiral motion not only intensifies the water disturbance, but also breaks the bubble aggregation tendency, making the bubbles more evenly distributed in the water flow. Next, when the spiral water flow reaches the middle of the tube body 6, the gas output from the gas distribution membrane plate assembly 7 is refined by the membrane plate and evenly distributed by the porous plate, and then sprayed towards the axis of the tube body 6 in a diffuse manner. It forms an impact and cut with the spiral water flow, further breaking the bubbles into nano-sized microbubbles, greatly increasing the gas-liquid contact area and contact time, and completing the second gas dissolution. Finally, the saturated dissolved gas water, which has fully dissolved the gas, flows smoothly along the spiral flow field and is stably discharged through the dissolved gas water outlet pipe 8 on the other side of the top of the pipe body 6, completing the entire dissolved gas process.

[0030] In summary, this technical solution integrates a porous air inlet pipe and a water inlet pipe, allowing the gas to disperse and integrate into the water flow in advance for initial dissolution. The air chamber seat of the gas distribution membrane plate assembly stabilizes the pressure, the membrane plate refines bubbles, and the porous plate evenly distributes the gas, achieving deep gas dissolution through counter-current flow with the spiral water flow. Furthermore, the wall-mounted bend and r-angle design of the water inlet nozzle creates a high-speed spiral flow field that enhances disturbance, breaks up bubble aggregation, guides the water flow to the gas distribution area, and extends the gas-liquid contact time. In addition, the bottom drain pipe facilitates shutdown venting and maintenance, and the flange with a flange cap ensures reliable sealing, reducing maintenance costs. The overall device has a compact structure, achieves thorough bubble refinement, and can stably output high-quality saturated dissolved gas water, making it suitable for various scenarios requiring efficient gas dissolution.

[0031] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A horizontal dissolved gas apparatus, comprising a tube (6) arranged in a horizontal direction, characterized in that, The horizontal dissolved gas device also includes: The water inlet pipe (3) is radially disposed on one side of the top of the pipe body (6), with its inlet end located on the outside of the pipe body (6) and its outlet end extending to the inside of the pipe body (6). A multi-hole air inlet pipe (4) is provided on the outer wall of the water inlet pipe (3). Its air inlet end is located on the outside of the water inlet pipe (3), and its air outlet end extends to the inside of the water inlet pipe (3). Several air outlet holes are arranged on the pipe wall inside the water inlet pipe (3). A dissolved air water outlet pipe (8) is radially disposed on the other side of the top of the pipe body (6); and The air distribution film plate assembly (7) is located in the middle of the pipe body (6) and between the water inlet pipe (3) and the dissolved air water outlet pipe (8). Its air inlet end is located on the outside of the pipe body (6) and its air outlet end is located on the inside of the pipe body (6). The water inlet pipe (3) is provided with a water inlet nozzle (5) at its outlet end. The spray end of the water inlet nozzle (5) is bent toward the inner wall of the pipe body (6), so that the spray end of the water inlet nozzle (5) is located close to the inner wall of the pipe body (6).

2. The horizontal dissolved gas apparatus according to claim 1, characterized in that, The spray end of the water inlet nozzle (5) forms an angle r with the axial direction of the water inlet pipe (3), so that the spray end of the water inlet nozzle (5) is biased toward the direction of the dissolved air water outlet pipe (8).

3. The horizontal dissolved gas apparatus according to claim 2, characterized in that, The range of the r-angle is 5-45 degrees.

4. The horizontal dissolved gas apparatus according to claim 1, characterized in that, The air-supported membrane panel assembly (7) includes: The air inlet pipe (10) has its inlet end located on the outside of the pipe body (6) and its outlet end located on the inside of the pipe body (6). The air chamber seat (11) has its air inlet end connected to the air outlet end of the air distribution inlet pipe (10); The diaphragm plate (12), whose air inlet end is connected to the air outlet end of the air chamber seat (11); and The perforated plate (13) has its air inlet end connected to the air outlet end of the membrane plate (12); The porous plate (13) has several evenly spaced air outlets, and the air outlet end of the porous plate (13) faces the axis of the tube body (6).

5. The horizontal dissolved gas apparatus according to claim 1, characterized in that, The bottom of the tube body (6) is provided with a bottom drain pipe (9).

6. The horizontal dissolved gas apparatus according to claim 1, characterized in that, Flanges (2) are provided at both ends of the pipe body (6).

7. The horizontal dissolved gas apparatus according to claim 6, characterized in that, A flange cover (1) is provided on the outside of the flange (2).

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