Incoming flow self-adaptive wing-shaped guide plate adsorption device and wastewater treatment method

Abstract

The invention discloses an incoming flow self-adaptive wing-shaped guide plate adsorption device and a wastewater treatment method. The device comprises a box body and a plurality of wing-shaped flow guide plates arranged in the box body, the wing-shaped flow guide plates are sequentially arranged in the flow direction to form a multi-stage adsorption array, and the wing-shaped flow guide plates are filled with adsorbents and are rotatably connected into the box body through rotating shafts. According to the wastewater treatment method, the device is used, when wastewater flows through the wing-shaped flow guide plate, the wing-shaped flow guide plate can automatically adjust the angle of the wing-shaped flow guide plate according to changes of incoming flow states, adsorbable pollutants in the wastewater are intercepted by the adsorbent in the wing-shaped flow guide plate, and wastewater treatment is completed. By means of the rectification effect of the multi-stage wing-shaped array, the short flow phenomenon can be effectively restrained, local flow disturbance is reduced, low flow resistance and high mass transfer efficiency are both considered in the wide flow speed range, and the multi-stage wing-shaped array reactor is suitable for wastewater treatment under complex working conditions and other fluid treatment scenes containing adsorbable pollutants.

Description

Technical Field

[0001] This invention belongs to the technical field of environmental water treatment equipment, and particularly relates to an adaptive airfoil guide vane adsorption device and wastewater treatment method suitable for complex hydraulic conditions. Background Technology

[0002] Industrial wastewater typically contains a variety of pollutants that can be removed by adsorption, and its efficient and stable treatment is a common challenge in industrial production and environmental protection. In actual industrial discharge processes, affected by fluctuations in production load, changes in operating conditions, and environmental factors, wastewater often exhibits characteristics such as complex water composition and a wide range of flow velocity variations. Its treatment effect directly relates to the level of pollutant emission control and water resource reuse efficiency.

[0003] Among existing wastewater treatment technologies, physical adsorption is widely used due to its simple process and low operating cost. This type of technology typically removes pollutants by arranging adsorption materials in a flow channel to ensure sufficient contact between the wastewater and the adsorption medium. However, existing adsorption treatment devices are mostly designed based on single or limited operating conditions, and generally adopt static rigid flow guiding structures such as fixed baffles and folding plates. Once the device structure is completed, it is difficult to adjust it according to the operating conditions.

[0004] Under actual operating conditions, this type of fixed structure exhibits significant limitations at different flow rates: at low flow rates, the fixed flow guide structure has limited ability to disturb the fluid, and the fluid is prone to forming laminar flow regions or local dead zones between the plates, resulting in insufficient contact between wastewater and adsorbent materials, reduced mass transfer efficiency, and unstable pollutant removal effect; while at high flow rates, the fluid exerts a strong frontal impact and shearing effect on the fixed structure, which may not only exacerbate flow energy consumption, but also trigger secondary desorption and migration of adsorbed pollutants, and even adversely affect the safety of the device structure in extreme cases.

[0005] Therefore, there is an urgent need for a wastewater adsorption treatment device that can adapt to changes in inflow conditions and maintain good treatment performance under different hydraulic conditions. In particular, the development of a passive adsorption treatment technology that can achieve adaptive adjustment of its working state solely through the device's own structure and hydrodynamic forces without requiring external energy or complex control systems is of significant engineering application value for improving the stability and reliability of wastewater treatment processes under complex operating conditions. Summary of the Invention

[0006] The first objective of this invention is to provide an adaptive airfoil deflector adsorption device suitable for complex operating conditions. Based on the principle of hydrodynamic self-stabilization, this device achieves adaptive adjustment of the airfoil deflector's attitude through hydrodynamic feedback generated by the interaction between the device's structure and the fluid. It can automatically adjust the deflector's angle of attack according to changes in inflow conditions without external energy input, ensuring sufficient contact between wastewater and the adsorbent material under various hydraulic conditions. This overcomes the problems of short-circuiting, insufficient adsorption, or secondary desorption that often occur in traditional stationary adsorption devices under non-design conditions. The device features a simple structure and stable operation.

[0007] A second objective of this invention is to provide a wastewater treatment method that utilizes the aforementioned adsorption device for pollutant removal.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An adaptive airfoil deflector adsorption device includes a housing and a plurality of airfoil deflectors disposed within the housing. The plurality of airfoil deflectors are arranged along the flow direction to form a multi-stage adsorption array. The airfoil deflectors are rotatably connected to the housing via a rotating shaft. This allows the airfoil deflectors to generate a hydrodynamic torque relative to the rotating shaft under the action of the fluid, and to achieve adaptive adjustment of the airfoil deflector angle under the action of the hydrodynamic force.

[0010] In some embodiments, the spacing between airfoil deflectors is less than the chord length of the airfoil deflectors, so that adjacent airfoil deflectors form overlapping blade channels in the flow projection direction.

[0011] In some embodiments, the airfoil deflector includes an upper pressure plate and a lower pressure plate, the upper pressure plate having an upper pressure plate side and the lower pressure plate having a lower pressure plate side; the upper pressure plate side and the lower pressure plate side are fitted onto the rotating shaft, and the upper pressure plate and the lower pressure plate are fixedly connected, together forming the main structure of the airfoil deflector.

[0012] Rigid metal filters are provided on both the upper and lower pressure plate sides; an airfoil-shaped partition is provided between the upper and lower pressure plate sides, and several reinforcing ribs connect the multiple airfoil-shaped partitions. The airfoil-shaped partition, rigid metal filters, upper pressure plate, and lower pressure plate together form a receiving cavity, which is filled with adsorbent. The airfoil-shaped guide vane is rotatably mounted in the box body via its rotation axis.

[0013] Furthermore, the reinforcing ribs are spaced apart along the wingspan direction, dividing the accommodating cavity into several independent adsorption units. This is used to limit the axial and radial displacement of the adsorbent during operation, so as to prevent local accumulation of the adsorbent and ensure the uniformity of the mass distribution and rotational stability of the airfoil guide vane.

[0014] In some embodiments, the device further includes a bearing housing disposed at the bottom of the housing, and the rotating shaft is rotatably connected to the bearing housing to reduce rotational resistance and ensure that the airfoil guide vane can respond sensitively to changes in incoming flow conditions.

[0015] In some embodiments, the end of the side of the upper pressure plate is provided with a first rotating hole and a first engaging portion, and the end of the side of the lower pressure plate is provided with a second rotating hole and a second engaging portion; the side of the upper pressure plate and the side of the lower pressure plate are sleeved on the rotating shaft through the first rotating hole and the second rotating hole, and are fixed by mutual engagement through the first engaging portion and the second engaging portion.

[0016] In some embodiments, a first pressure strip groove is provided on both the side of the upper pressure plate and the side of the lower pressure plate. The rigid metal filter screen is embedded in the first pressure strip groove and is squeezed and fixed by an elastic sealing strip to enhance the sealing performance and structural stability between the filter screen and the airfoil structure.

[0017] In some embodiments, the upper pressure plate and the lower pressure plate are provided with corresponding threaded holes. The upper pressure plate and the lower pressure plate are fixedly connected by bolts and nuts passing through the threaded holes to form a modular assembly structure, which is convenient for disassembly and maintenance.

[0018] In some embodiments, both the upper and lower pressure plates are made of corrosion-resistant aluminum alloy or stainless steel.

[0019] In some embodiments, the adsorbent is activated carbon, expanded graphite, or other porous adsorbent materials suitable for the adsorption and removal of pollutants in wastewater. The specific type of adsorbent does not constitute a limitation of the present invention.

[0020] Secondly, the present invention also provides a method for wastewater treatment using the above-mentioned adaptive airfoil deflector adsorption device, characterized by comprising the following steps:

[0021] S1. The wastewater to be treated is introduced into the tank of the wastewater adsorption treatment device, so that the wastewater flows along the chord direction of the airfoil guide plate. Under the action of the fluid, the airfoil guide plate generates hydrodynamic torque around the rotation axis and is in a stable posture corresponding to the current incoming flow conditions.

[0022] S2. When the wastewater flow velocity changes, the hydrodynamic torque on the airfoil guide plate changes accordingly, the original torque balance is broken, and the airfoil guide plate rotates around the rotation axis under the action of the clean water dynamic torque until it reaches a stable attitude again under the new flow conditions, thus realizing the adaptive adjustment of the airfoil guide plate's angle of attack.

[0023] S3. Wastewater flows through a multi-stage airfoil guide vane array that automatically adjusts its attitude. The flow channel structure formed by adjacent airfoil guide vanes straightens the fluid, suppresses flow separation and the generation of large-scale vortex structures. In a relatively stable flow field, pollutants in the wastewater are transported to the surface of the airfoil guide vanes with the fluid movement and are intercepted by the adsorbent filled inside the rigid metal filter screen, thus achieving the adsorption and removal of pollutants.

[0024] The beneficial effects of this invention are:

[0025] (1) The present invention adopts a streamlined airfoil flow guiding structure and a multi-stage array arrangement, which significantly reduces the local flow resistance and operating energy consumption caused by the impact of the incoming flow compared with the traditional flat plate adsorption structure. At the same time, the multi-stage airfoil array effectively extends the flow path of the fluid in the device, increases the contact area and residence time between the wastewater and the adsorption unit, and enhances the mass transfer process of pollutants to the surface of the adsorption material by maintaining a relatively stable flow field, thereby significantly improving the overall adsorption and retention efficiency.

[0026] (2) Based on the principle of hydrodynamic torque balance, this invention achieves purely mechanical adaptive rotation without external energy input by setting an airfoil guide vane structure with an offset rotation axis, thus overcoming the defect of poor adaptability of fixed adsorption devices to flow velocity fluctuations. Under low flow velocity conditions, the guide vane maintains a large angle of attack to enhance local disturbance and reduce adsorption dead zone; under high flow velocity conditions, the guide vane automatically deflects with the flow to reduce upstream resistance and suppress the risk of shear desorption, thereby balancing adsorption efficiency and operational stability over a wide flow velocity range.

[0027] (3) The device of the present invention is driven entirely by fluid power, without the need for sensors, electrical actuators or external control systems, and realizes self-sensing and self-adjustment to changes in the incoming flow environment. The device has a simple structure, high reliability and adopts a modular design, which facilitates the replacement of adsorbent and device maintenance, effectively reduces equipment manufacturing costs and total life cycle operating costs, and has good engineering adaptability and promotion application value. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the wastewater adsorption device of the present invention;

[0029] Figure 2 This is a schematic diagram of the upper and lower pressure plate structure in the wastewater adsorption device of the present invention;

[0030] Figure 3 This is a schematic diagram of the assembly of the upper and lower pressure plates in the wastewater adsorption device of the present invention;

[0031] Figure 4 This is a schematic diagram of the airfoil guide plate structure in the wastewater adsorption device of the present invention;

[0032] Figure 5This is a schematic diagram of the airfoil guide plate in the wastewater adsorption device of the present invention;

[0033] Figure 6 Schematic diagrams of suction and pressure surfaces at different chord cross sections;

[0034] Figure 7 Schematic diagram of surface velocity and pressure distribution at different chord sections of an airfoil at a 70° angle of attack;

[0035] Figure 8 Schematic diagram of velocity and pressure distribution at the half chord section of airfoils with different angles of attack;

[0036] Figure 9 Velocity contour plots at the half-airfoil section under different rotation angles;

[0037] Figure 10 Pressure contour plots at the 1 / 2 airfoil section under different rotation angles.

[0038] In the diagram: 1-threaded hole, 2-upper pressure plate, 21-side of upper pressure plate, 3-first pressure strip groove, 4-lower pressure plate, 41-side of lower pressure plate, 5-first rotating hole, 51-first interlocking part, 6-second rotating hole, 61-second interlocking part, 7-rotating shaft, 8-rigid metal filter screen, 91-wing-shaped partition, 92-rib plate, 93-second pressure strip groove, 10-bolt, 11-nut, 12-adsorbent, 13-elastic sealing strip, 14-box body. Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0040] See Figure 1 This invention relates to an adaptive combined airfoil guide vane wastewater adsorption treatment device, comprising a housing 14. Inside the housing 14, several airfoil guide vanes are arranged alternately along the flow direction, forming a multi-stage high-density adsorption array. The spacing between adjacent guide vanes is less than the chord length of the guide vane, and the preceding and following stage airfoil guide vanes are staggered in the projection direction. This arrangement creates a cascade effect, rectifying the flow field; under low flow conditions, it forces the fluid to flow around the cascade, prolonging the residence time of wastewater in the adsorption region and improving adsorption mass transfer efficiency.

[0041] See Figures 2-4 In some embodiments, the airfoil deflector includes an upper pressure plate 2 and a lower pressure plate 4. The upper pressure plate 2 is integrally formed or otherwise provided with an upper pressure plate side 21, and the lower pressure plate 4 is integrally formed or otherwise provided with a lower pressure plate side 41. The upper and lower pressure plates are fixedly connected by a rotating shaft 7 to form the main frame of the airfoil deflector. The upper and lower pressure plate sides 21 and 41 are fitted and sleeved on the rotating shaft 7.

[0042] Rigid metal filters 8 are arranged on the sides 21 and 41 of the upper and lower pressure plates; an airfoil baffle 91 is set between the upper and lower pressure plates, and ribs 92 are provided between the airfoil baffles. The ribs 92 not only enhance the structural rigidity of the baffle 91 to prevent fluid dynamic pressure deformation, but also constrain the adsorbent 12 to prevent it from overflowing. The airfoil baffle 91, the rigid metal filters 8, and the upper and lower pressure plates together form a receiving cavity, which is filled with adsorbent 12.

[0043] In some embodiments, the adsorbent 12 may be a porous material with a high specific surface area, such as, but not limited to, expanded graphite, activated carbon, modified fiber, porous ceramic or bio-based adsorbent material, etc. Its porous structure can effectively adsorb dissolved, dispersed or suspended pollutants in wastewater, achieving continuous and sufficient contact and efficient treatment.

[0044] The airfoil guide vane is rotatably mounted on the bottom of the housing 14 via a rotating shaft 7. The rotating shaft rotates in conjunction with the bottom bearing seat. The position of the rotating shaft is offset from the pressure center of the airfoil, creating an eccentricity that allows the guide vane to automatically adjust its angle of attack according to changes in the incoming flow, achieving adaptive flow field regulation without external power.

[0045] See Figure 3 In some embodiments, the upper pressure plate side 21 end is provided with a first rotating hole 5 and a first engaging part 51, and the lower pressure plate side 41 end is provided with a second rotating hole 6 and a second engaging part 61. The upper and lower pressure plates are sleeved on the rotating shaft 7 through the rotating holes and are fixed to each other by the engaging parts 51 and 61.

[0046] In some embodiments, first pressure grooves 3 are formed on the sides 21 and 41 of the upper and lower pressure plates, and second pressure grooves 93 are formed on the airfoil partition 91. A rigid metal filter screen 8 is embedded in the first pressure groove 3 and fixed by an elastic sealing strip 13, while also being embedded in the second pressure groove 93. The filter screen pore size can be optimized according to the particle or pollutant particle size distribution, achieving physical interception of the adsorbent while maintaining low resistance water flow.

[0047] In some embodiments, threaded holes 1 are provided on the upper pressure plate 2 and the lower pressure plate 4 respectively. The upper pressure plate 2 and the lower pressure plate 4 are fixedly connected by bolts 10 and nuts 11 passing through the threaded holes 1, forming a detachable modular assembly.

[0048] In some embodiments, both the upper pressure plate 2 and the lower pressure plate 4 are made of corrosion-resistant aluminum alloy or stainless steel.

[0049] The present invention also provides a wastewater treatment method using the above-mentioned wastewater adsorption treatment device, the specific method of which is as follows:

[0050] S1. Align the rotating holes of the upper pressure plate side 21 and the lower pressure plate side 41, and insert the shaft pin or rotating shaft 7 to connect them, so that the combined plate can rotate freely relative to the box.

[0051] S2. An elastic sealing strip 13 is embedded in the first pressure strip groove 3 on the sides 21 and 41 of the upper and lower pressure plates to fasten the rigid metal filter screen 8. The filter screen serves as a liquid-solid mass transfer interface, limiting the overflow of adsorbent. At the same time, its surface micro-roughness induces near-wall micro-turbulence, enhancing diffusion mass transfer efficiency.

[0052] S3. An airfoil-shaped baffle 91 is provided between the sides 21 and 41 of the upper and lower pressure plates, and expanded graphite treated with high temperature expansion is filled into the space defined by the airfoil-shaped baffle 91. The adsorbent has a porous structure and high specific surface area, which can efficiently adsorb dissolved, dispersed or suspended pollutants in wastewater;

[0053] The upper and lower pressure plates are closed, and bolts 10 are passed through bolt holes 1 and tightened with nuts 11 to fix the adsorbent inside the airfoil. The assembled guide vane has a near-smooth airfoil shape, which can reduce flow resistance and enhance the guiding ability of incoming flow.

[0054] S4. Multiple airfoil plates are processed and assembled in the same manner, and then sequentially connected to the box 14 or pipe through continuously arranged rotating shafts 7 to form a multi-airfoil array structure. This allows the wastewater to come into contact with the adsorbent multiple times within the channel, improving the adsorption utilization rate. This array constructs a multi-stage rectifier channel inside the box 14, causing the wastewater to turn and contact the adsorbent multiple times, significantly improving the adsorption utilization rate per unit volume.

[0055] S5. The device is installed within an existing wastewater pipeline or tank channel. During operation, wastewater enters through the leading edge of the baffle and exits through the trailing edge. Because the airfoil structure is movably connected to the rotating shaft 7, it can rotate freely under the influence of fluid force. When fluid flows over the surface of the airfoil baffle, a hydrodynamic torque is generated relative to the rotating shaft under the action of lift and drag. This hydrodynamic torque changes with the incoming flow velocity and the geometric characteristics of the baffle. When the incoming flow conditions change, the original torque balance is broken, and the resulting net hydrodynamic torque drives the baffle to rotate around the rotating shaft until a stable equilibrium state is reached again under the new flow velocity conditions.

[0056] The hydrodynamic moment can be used as a design reference using the following formula to help determine the size and eccentricity of the guide vane, so as to achieve the expected adaptive adjustment effect:

[0057]

[0058] Among them, C m ρ is the pitching moment coefficient, Re is the Reynolds number, α is the angle of attack, ρ is the fluid density, v is the incoming flow velocity, S is the reference area of ​​the airfoil guide vane, and c is the airfoil chord length. Figure 5 (The dashed line connecting the leading and trailing edges of the deflector).

[0059] See Figure 5The lift force (L) from the fluid action and the weight force (G) of the plate form a torque balance relationship:

[0060] L×x1×sinθ=G×x2×sinθ

[0061] Where A is the position of the rotation axis, θ is the angle of attack, and x1 and x2 are the distances from the center of lift a and the center of gravity b to the rotation axis, respectively.

[0062] The incoming flow limits the rotation angle θ to an effective range of 0° to 70°. Under low flow rate conditions, the guide vane maintains a large angle of attack to enhance flow field disturbance; under high flow rate conditions, the guide vane automatically reduces the angle of attack to prevent shear desorption, achieving dynamic adaptive adjustment without the need for external power.

[0063] Experimental example:

[0064] In this embodiment, the lift center fluctuation range measured according to the flow velocity range is 0.35c to 0.55c. Therefore, the rotation axis is set in front of the lift center fluctuation range to ensure that the airfoil can achieve stable adaptive rotation under different flow velocities and optimize the flow field disturbance effect.

[0065] Under certain inflow conditions, the combined airfoil guide vane inside the device housing will stabilize at a certain angle. At this point, cross-sections can be taken at 1 / 4, 1 / 2, and 3 / 4 of the airfoil's span for analysis, where red represents the suction surface and blue represents the pressure surface. Figure 6 .

[0066] Analysis of different airfoil cross sections at an angle of attack of 70° shows that the surface velocity and pressure of the airfoil change smoothly along the chord direction and are uniformly distributed along the span direction. Figure 7 (As shown). There are no obvious abrupt changes on the upper and lower airfoils, indicating that the airfoil is in a good flow state, which is conducive to the stable penetration of wastewater or fluid to be treated into the device and full contact with the adsorbent.

[0067] Analysis of half-span section of airfoil at different angles of attack ( Figure 8 As shown in the figure, under various rotation angles, the flow velocity range on the airfoil surface is narrow and uniform, the pressure distribution is stable, and the pressure gradient changes gently. This stable flow field can effectively guide the fluid to flow directionally into the device, thereby improving the adsorption efficiency.

[0068] Furthermore, the combined airfoil guide vane device described in this embodiment has the advantage of reducing hydraulic losses. Figure 9 The results show that the airfoil's resistance to the incoming flow varies with the angle of attack at different rotation angles. Smaller angles of attack may cause a decrease in local flow velocity and thickening of the boundary layer, while appropriately increasing the angle of attack can improve the uniformity of fluid flow, reduce local resistance, and lower hydraulic losses. Figure 10The pressure cloud map further demonstrates that a well-designed airfoil structure can achieve a large angle of attack under low flow conditions while maintaining low hydraulic loss and improving adsorption utilization.

[0069] The adaptive adjustment mechanism based on the hydrodynamic self-stabilization principle, the high-density airfoil adsorption array structure, and the pure mechanical feedback control logic sensitive to Reynolds number disclosed in this invention have high engineering versatility and expansion value. They are applicable to industrial wastewater treatment and can also be easily adapted to various scenarios such as multiphase flow separation and pollutant removal, including but not limited to ship sewage purification systems, urban stormwater runoff treatment facilities, kitchen wastewater treatment, and other fluid treatment scenarios containing adsorbable pollutants.

[0070] It should be noted that the airfoil guide vane in this invention is not limited to existing construction methods and can adopt various different configurations. To achieve arbitrary placement of the rotating shaft at any desired position along the chord of the airfoil guide vane, thereby optimizing the distribution of hydrodynamic torque, better adapting to different inflow conditions, and improving the adaptive adjustment effect, the structure of the airfoil guide vane can be adjusted accordingly. For example, the upper and lower pressure plates can be integrally connected to the airfoil baffle. After the adsorbent is filled, a rigid metal filter screen is then placed on top. Subsequently, bearing seats are installed along the chord of the airfoil baffles on both sides, and the rotating shaft is rotatably connected to the bearing seats. This allows for flexible adjustment of the rotating shaft's placement position, and thus precise control of the airfoil guide vane's hydrodynamic response characteristics based on the inflow characteristics.

[0071] The foregoing specific embodiments are merely illustrative of the core design concept and technical solution of the present invention and are not intended to narrowly limit the scope of protection of the present invention. The scope of protection of the present invention shall be determined by the appended claims. Any non-substantial improvements, equivalent structural substitutions, or process parameter adjustments made by those skilled in the art based on the technical concept of the present invention (especially the concept of achieving passive adaptive regulation using hydrodynamic torque balance) shall be covered within the scope of patent protection of the present invention.

Claims

1. An adaptive airfoil deflector adsorption device, characterized in that, It includes a housing (14) and several airfoil guide vanes disposed within the housing (14). The airfoil guide vanes are arranged along the flow direction to form a multi-stage adsorption array. The airfoil guide vanes are rotatably connected to a rotating shaft (7) disposed within the housing (14), so that the airfoil guide vanes generate a hydrodynamic torque relative to the rotating shaft (7) under the action of the fluid, and achieve adaptive adjustment of the airfoil guide vane's angle of attack under the action of the hydrodynamic force.

2. The adaptive airfoil guide vane adsorption device according to claim 1, characterized in that, The spacing between the airfoil guide vanes is less than the chord length of the airfoil guide vanes, so that adjacent airfoil guide vanes form overlapping blade cascade channels in the flow projection direction.

3. The adaptive airfoil deflector adsorption device according to claim 1 or 2, characterized in that, The airfoil guide plate includes: an upper pressure plate (2) with an upper pressure plate side (21); a lower pressure plate (4) with a lower pressure plate side (41); the upper pressure plate side (21) and the lower pressure plate side (41) are fitted onto a rotating shaft (7), and the upper pressure plate (2) and the lower pressure plate (4) are fixedly connected; a rigid metal filter screen (8) is provided on both the upper and lower pressure plate sides (21, 41); an airfoil partition (91) is provided between the upper pressure plate side (21) and the lower pressure plate side (41), and a rib plate (92) is connected between the airfoil partitions (91); the airfoil partition (91), the rigid metal filter screen (8), the upper pressure plate (2) and the lower pressure plate (4) together form a receiving cavity, which is filled with an adsorbent (12).

4. The adaptive airfoil guide vane adsorption device according to claim 1, characterized in that, It also includes a bearing housing, which is located at the bottom of the housing (14), and the rotating shaft (7) is rotatably connected to the bearing housing.

5. The adaptive airfoil guide vane adsorption device according to claim 3, characterized in that, The upper pressure plate side (21) end is provided with a first rotating hole (5) and a first engaging part (51); the lower pressure plate side (41) end is provided with a second rotating hole (6) and a second engaging part (61); the upper and lower pressure plate sides (21, 41) are sleeved on the rotating shaft (7) through the first and second rotating holes (5, 6) and are fixed to each other by the first and second engaging parts (51, 61).

6. The adaptive airfoil guide vane adsorption device according to claim 3, characterized in that, The upper and lower pressure plates are provided with first pressure grooves (3) on their sides (21, 41). The rigid metal filter screen (8) is embedded in the first pressure groove (3) and fixed by the elastic sealing strip (13).

7. The adaptive airfoil guide vane adsorption device according to claim 3, characterized in that, The upper and lower pressure plates (2, 4) are respectively provided with threaded holes (1), and the upper and lower pressure plates are fixedly connected by bolts (10) and nuts (11).

8. The adaptive airfoil guide vane adsorption device according to claim 3, characterized in that, The upper and lower pressure plates (2, 4) are both made of corrosion-resistant aluminum alloy or stainless steel.

9. The adaptive airfoil guide vane adsorption device according to claim 3, characterized in that, The adsorbent (12) is expanded graphite or other porous adsorbent material that has undergone high-temperature expansion treatment.

10. A wastewater treatment method using the inflow adaptive airfoil baffle adsorption device as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1. The wastewater to be treated is introduced into the box (14) so ​​that the wastewater flows along the chord direction of the airfoil guide plate and generates hydrodynamic effect. S2. When the flow velocity of wastewater changes, the airfoil guide plate automatically adjusts its rotation angle around the rotation axis (7) under the action of hydrodynamics, changing the airfoil angle of attack to adapt to different flow velocity conditions. S3. When the wastewater flows through the airfoil guide plate of the multi-stage adsorption array, the adsorbent (12) intercepts the adsorbable pollutants in the wastewater and completes the wastewater treatment.

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