Stripping tower internal part system based on flow path optimization and multi-stage separation

Abstract

The invention discloses a stripping tower internal part system based on flow path optimization and multi-stage separation, and belongs to the field of wastewater treatment.The stripping tower internal part system is characterized in that a gas outlet pipe is arranged at the top, a gas inlet pipe and a water outlet pipe are arranged at the bottom, a plurality of horizontally-arranged separation plates are arranged in a tower body, and the separation plates are fixedly connected through supporting columns; the edges of the separation plates are tightly attached to the inner wall of the tower body, a plurality of through holes which are uniformly distributed are formed in the separation plates, a plurality of spoilers which are vertically arranged are further arranged on the inner wall of the tower body, the upper ends of the spoilers are fixedly connected with the lower surfaces of the separation plates, and the lower ends of the spoilers extend to the upper surface of the next layer of separation plate; a plurality of inclined guide plates are further arranged on the inner wall of the tower body, the upper ends of the guide plates are fixedly connected with the inner wall of the tower body, the lower ends of the guide plates are fixedly connected with the upper surface of the separation plate, and a spraying device is further arranged at the top of the tower body. The technical problem of low pollutant removal efficiency caused by obvious insufficiency in flow path optimization and multi-stage separation of the stripping tower design is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a stripping tower internals system based on flow path optimization and multi-stage separation. Background Art

[0002] As the chemical industry's environmental protection requirements become increasingly stringent, stripping towers are increasingly used in wastewater treatment. However, existing stripping towers still have some deficiencies in reducing effluent COD (chemical oxygen demand), especially in terms of flow path optimization and pollutant removal efficiency. Existing stripping tower designs focus more on improving stripping efficiency or preventing scaling, while the control effect on effluent COD is limited, resulting in the treated water quality being difficult to meet increasingly stringent environmental standards.

[0003] After searching, a downcomer overflow weir disturbance device and a sewage stripping tower with publication number CN114702089A were disclosed, and the disclosure date is July 5, 2022. This design sets a disturbance device on the downcomer overflow weir, and uses a nozzle to spray the medium to disturb the material to prevent the accumulation of catalyst particles and organic matter. Although this design can effectively prevent the overflow weir from being blocked, it mainly focuses on the anti-blocking performance of the equipment and does not optimize the reduction of effluent COD. In addition, the flow path of this design is relatively single, and the internal space of the stripping tower is not fully utilized for multi-stage separation, resulting in limited pollutant removal efficiency.

[0004] After searching, an energy-saving stripping tower with temperature exchange was disclosed with publication number CN112494974A, and the publication date is March 16, 2021. This design uses the recovered heat to reduce heat loss in the tower by setting external ribs and recovery pipes, thereby improving energy efficiency. However, this design mainly focuses on energy-saving effects, and does not optimize the flow path to reduce the effluent COD. Its internal structure is relatively simple, and there is a lack of multi-stage separation design for pollutants, which makes it difficult to effectively reduce the effluent COD.

[0005] The above problems show that the existing stripping tower design has obvious deficiencies in reducing effluent COD, especially in flow path optimization and multi-stage separation. Therefore, the present invention provides a stripping tower internals system based on flow path optimization and multi-stage separation, which significantly improves the pollutant removal efficiency and meets environmental protection requirements by optimizing the flow path and adding a multi-stage separation structure. Summary of the invention

[0006] The purpose of the present invention is to provide a stripping tower internals system based on flow path optimization and multi-stage separation, which solves the technical problem that the traditional existing stripping tower design is obviously insufficient in flow path optimization and multi-stage separation, resulting in low pollutant removal efficiency.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a stripping tower internals system based on flow path optimization and multi-stage separation, including an air inlet pipe, a tower body, an air outlet pipe, a water outlet pipe, a plurality of separation plates, a spoiler, a guide plate and a spray device. The tower body is a cylindrical structure, with an air outlet pipe at the top, an air inlet pipe and a water outlet pipe at the bottom, and a plurality of horizontally arranged separation plates arranged inside the tower body, the separation plates are fixedly connected by support columns, and the edges of the separation plates are tightly fitted with the inner wall of the tower body, and the separation plates are provided with a plurality of evenly distributed through holes, the diameter of the through holes is 3mm to 5mm, and the center spacing of the through holes is 10mm to 15mm. A plurality of vertically arranged spoilers are also provided on the inner wall of the tower body, the upper end of the spoiler is fixedly connected to the lower surface of the separation plate, the lower end of the spoiler extends to the upper surface of the next layer of separation plates, the width of the spoiler is 5cm to 10cm, the thickness is 1cm to 2cm, and the end of the spoiler is semicircular. The inner wall of the tower body is also provided with a plurality of inclined guide plates, the upper end of the guide plate is fixedly connected to the inner wall of the tower body, the lower end of the guide plate is fixedly connected to the upper surface of the separation plate, the inclination angle of the guide plate is 15° to 30°, the length of the guide plate is 20cm to 40cm, and the width is 10cm to 20cm. A spray device is also provided on the top of the tower body, the spray device includes a spray pipe and a plurality of nozzles, the spray pipe is arranged circumferentially along the top of the tower body, the nozzles are evenly distributed on the spray pipe, the spray angle of the nozzle is 30° to 45°, and the spray distance of the nozzle is 50cm to 80cm.

[0008] The upper surface of the separation plate is provided with a plurality of raised guide grooves, the width of the guide grooves is 2 cm to 4 cm, the depth is 1 cm to 2 cm, the guide grooves are arranged along the radial direction of the separation plate, and the spacing between the guide grooves is 10 cm to 20 cm. The lower surface of the separation plate is provided with a plurality of grooves, the width of the grooves is 2 cm to 4 cm, the depth is 1 cm to 2 cm, the grooves are arranged along the radial direction of the separation plate, and the spacing between the grooves is 10 cm to 20 cm. The guide grooves and grooves on the upper and lower surfaces of the separation plate are staggered to form a multi-stage flow channel.

[0009] The upper end of the spoiler is provided with a plurality of protrusions, the diameter of the protrusions is 1 cm to 2 cm, the height is 0.5 cm to 1 cm, the protrusions are evenly distributed along the length direction of the spoiler, and the spacing between the protrusions is 5 cm to 10 cm. The lower end of the spoiler is provided with a plurality of grooves, the width of the grooves is 1 cm to 2 cm, the depth is 0.5 cm to 1 cm, the grooves are evenly distributed along the length direction of the spoiler, and the spacing between the grooves is 5 cm to 10 cm. The protrusions and grooves at the upper and lower ends of the spoiler are staggered to form a multi-level flow barrier.

[0010] The upper end of the guide plate is provided with a plurality of spray holes, the diameter of the spray holes is 2mm to 4mm, and the spacing between the spray holes is 5cm to 10cm. The lower end of the guide plate is provided with a plurality of guide grooves, the width of the guide grooves is 2cm to 4cm, the depth is 1cm to 2cm, the guide grooves are evenly distributed along the length direction of the guide plate, and the spacing between the guide grooves is 5cm to 10cm. The spray holes and guide grooves at the upper and lower ends of the guide plate are staggered to form a multi-stage flow guide.

[0011] The spray pipe of the spray device is provided with multiple horizontal nozzles, which are used to cover the upper surface of the tower body for secondary exhaust gas treatment. The spray direction of the nozzle is downwardly inclined, the spray angle of the nozzle is 30° to 45°, and the spray distance of the nozzle is 50cm to 80cm. The nozzles of the spray device are evenly distributed along the circumference of the spray pipe, and the spacing between the nozzles is 10cm to 20cm. The spray pipe of the spray device is fixed to the top of the tower body by a fixed bracket. The material of the fixed bracket is stainless steel, the diameter of the fixed bracket is 2cm to 4cm, and the length is 50cm to 100cm.

[0012] The structural composition and implementation principle of the present invention are:

[0013] The air inlet pipe introduces the gas to be treated into the tower body. The gas flows from bottom to top and passes through the multi-stage separation and diversion of multiple separation plates. The through holes and diversion grooves on the separation plate form a multi-stage flow channel, so that the gas is in full contact with the surface of the separation plate during the flow process, increasing the gas-liquid mass transfer area and improving the removal efficiency of pollutants. The protrusions and grooves on the spoiler form multi-stage flow obstacles, further increasing the gas-liquid contact time and contact area, and improving the dissolution and separation efficiency of pollutants. The spray holes and diversion grooves on the diversion plate form a multi-stage flow guide, so that the spray liquid is evenly distributed on the separation plate, enhancing the coverage area and distribution uniformity of the spray liquid, and improving the removal effect of pollutants. The nozzle of the spray device sprays the spray liquid evenly on the separation plate, and the spray liquid is fully mixed with the gas, further improving the removal efficiency of pollutants. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a stereogram of the present invention;

[0015] Figure 2 is a top view of the present invention;

[0016] Figure 3 The present invention Figure 2 AA section view;

[0017] Figure 4 The internal structure of the present invention Figure 1 ;

[0018] Figure 5 The internal structure of the present invention Figure 2 .

[0019] In the figure, 1. air inlet pipe; 2. tower body; 3. air outlet pipe; 4. water outlet pipe; 5. separation plate; 6. support column; 7. through hole; 8. spoiler; 9. guide plate; 10. spray device; 11. spray pipe; 12. nozzle; 13. horizontal nozzle; 14. fixed bracket; 15. guide groove 1; 16. groove 1; 17. protrusion; 18. groove 2; 19. spray hole; 20. guide groove 2. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0022] In one embodiment, referring to Figures 1 to 5 , a stripping tower internals system based on flow path optimization and multi-stage separation, comprising an air inlet pipe 1, a tower body 2, an air outlet pipe 3, a water outlet pipe 4, a plurality of separation plates 5, a spoiler 8, a guide plate 9 and a spray device 10. The tower body 2 is a cylindrical structure, with an air outlet pipe 3 on the top, and an air inlet pipe 1 and a water outlet pipe 4 on the bottom. A plurality of horizontally arranged separation plates 5 are arranged inside the tower body 2, and the separation plates 5 are fixedly connected by support columns 6, and the edges of the separation plates 5 are tightly fitted with the inner wall of the tower body 2.

[0023] The separation plate 5 is provided with a plurality of evenly distributed through holes 7, the diameter of the through holes 7 is 3mm to 5mm, and the center spacing is 10mm to 15mm. The upper surface of the separation plate 5 is provided with a plurality of raised guide grooves 15, the width of the guide grooves 15 is 2cm to 4cm, the depth is 1cm to 2cm, and they are arranged along the radial direction of the separation plate 5, with a spacing of 10cm to 20cm. The lower surface of the separation plate 5 is provided with a plurality of grooves 16, the width of the grooves 16 is 2cm to 4cm, the depth is 1cm to 2cm, and they are arranged along the radial direction of the separation plate 5, with a spacing of 10cm to 20cm. The guide grooves 15 on the upper surface and the grooves 16 on the lower surface are arranged staggered to form a multi-stage flow channel.

[0024] A plurality of vertically arranged spoilers 8 are provided on the inner wall of the tower body 2, the upper end of the spoiler 8 is fixedly connected to the lower surface of the separation plate 5, and the lower end extends to the upper surface of the next layer of separation plate 5. The width of the spoiler 8 is 5cm to 10cm, the thickness is 1cm to 2cm, and the end is semicircular. The upper end of the spoiler 8 is provided with a plurality of protrusions 17, the diameter of the protrusion 17 is 1cm to 2cm, the height is 0.5cm to 1cm, and the protrusions 17 are evenly distributed along the length direction of the spoiler 8, with a spacing of 5cm to 10cm. The lower end of the spoiler 8 is provided with a plurality of grooves 18, the width of the grooves 18 is 1cm to 2cm, the depth is 0.5cm to 1cm, and the grooves 18 are evenly distributed along the length direction of the spoiler 8, with a spacing of 5cm to 10cm. The protrusions 17 at the upper end and the grooves 18 at the lower end are staggered to form a multi-stage flow barrier.

[0025] A plurality of inclined guide plates 9 are also provided on the inner wall of the tower body 2, the upper end of the guide plate 9 is fixedly connected to the inner wall of the tower body 2, and the lower end is fixedly connected to the upper surface of the separation plate 5. The inclination angle of the guide plate 9 is 15° to 30°, the length is 20cm to 40cm, and the width is 10cm to 20cm. A plurality of spray holes 19 are provided on the upper end of the guide plate 9, the diameter of the spray holes 19 is 2mm to 4mm, and the spacing is 5cm to 10cm. A plurality of guide grooves 20 are provided on the lower end of the guide plate 9, the width of the guide grooves 20 is 2cm to 4cm, the depth is 1cm to 2cm, and they are evenly distributed along the length direction of the guide plate 9, and the spacing is 5cm to 10cm. The spray holes 19 at the upper end and the guide grooves 20 at the lower end are arranged staggered to form a multi-stage flow guide.

[0026] The spray device 10 includes a spray pipe 11 and a plurality of nozzles 12. The spray pipe 11 is arranged circumferentially along the top of the tower body 2. The nozzles 12 are evenly distributed on the spray pipe 11, and the spacing between the nozzles 12 is 10 cm to 20 cm. The spray direction of the nozzle 12 is downwardly inclined, the spray angle is 30° to 45°, and the spray distance is 50 cm to 80 cm. The spray pipe 11 is provided with a plurality of horizontal nozzles 13, which are used for plane water sealing and secondary waste gas treatment. The spray pipe 11 is fixed to the top of the tower body 2 by a fixed bracket 14. The fixed bracket 14 is made of stainless steel, with a diameter of 2 cm to 4 cm and a length of 50 cm to 100 cm.

[0027] The internal structure of the tower body 2 includes multiple separation plates 5, spoilers 8 and guide plates 9. The inlet pipe 1 introduces the gas to be treated into the tower body 2, and the gas flows from bottom to top, passing through the multi-stage separation and diversion of multiple separation plates 5. The through holes 7 and the guide grooves 15 on the separation plates 5 form a multi-stage flow channel, so that the gas is fully in contact with the surface of the separation plates 5 during the flow process, increasing the gas-liquid mass transfer area and improving the removal efficiency of pollutants. The protrusions 17 and the grooves 18 on the spoiler 8 form multi-stage flow obstacles, further increasing the gas-liquid contact time and contact area, and improving the dissolution and separation efficiency of pollutants.

[0028] The spray holes 19 and the guide grooves 20 on the guide plate 9 form a multi-stage flow guide, so that the spray liquid is evenly distributed on the separation plate 5, which increases the coverage area and distribution uniformity of the spray liquid and improves the removal effect of pollutants. The nozzle 12 of the spray device 10 sprays the spray liquid evenly on the separation plate 5, and the spray liquid is fully mixed with the gas, which further improves the removal efficiency of pollutants. The spray liquid is subjected to the resistance of the gas, which increases the time it exists inside the tower body 2 and can be fully mixed with the gas, thereby improving the dissolution and separation efficiency of pollutants.

[0029] The structural composition and implementation principle of the present invention are as follows: the gas to be treated is introduced into the tower body 2 by the gas inlet pipe 1, and the gas flows from bottom to top and passes through multi-stage separation and diversion of multiple separation plates.

[0030] The through holes 7 and the guide groove 15 on the separation plate 5 form a multi-stage flow channel, so that the gas is fully in contact with the surface of the separation plate 5 during the flow process, increasing the gas-liquid mass transfer area and improving the removal efficiency of pollutants. The protrusions 17 and the grooves 18 on the spoiler 8 form a multi-stage flow barrier, further increasing the gas-liquid contact time and contact area, and improving the dissolution and separation efficiency of pollutants.

[0031] The spray holes 19 and the guide grooves 20 on the guide plate 9 form a multi-stage flow guide, so that the spray liquid is evenly distributed on the separation plate 5, which enhances the coverage area and distribution uniformity of the spray liquid and improves the removal effect of pollutants. The nozzle 12 of the spray device 10 sprays the spray liquid evenly on the separation plate, and the spray liquid is fully mixed with the gas, further improving the removal efficiency of pollutants.

Claims

1. A stripping tower internals system based on flow path optimization and multi-stage separation, characterized in that: The tower body (2) comprises an air inlet pipe (1), a tower body (2), an air outlet pipe (3), a water outlet pipe (4), a separation plate (5), a spoiler (8), a guide plate (9) and a spray device (10); the top of the tower body (2) is provided with an air outlet pipe (3); the bottom of the tower body (2) is provided with an air inlet pipe (1) and a water outlet pipe (4); a plurality of horizontally arranged separation plates (5) are provided inside the tower body (2); the separation plates (5) are fixedly connected by support columns (6); the edges of the separation plates (5) are tightly fitted to the inner wall of the tower body (2); and the spray device (10) is fixed to the top of the tower body (2) by a fixing bracket (14); The separation plate (5) is provided with a plurality of evenly distributed through holes (7), the upper surface of the separation plate (5) is provided with a plurality of raised guide grooves (15), the lower surface of the separation plate (5) is provided with a plurality of grooves (16), the grooves (16) are arranged along the radial direction of the separation plate (5), and the guide grooves (15) on the upper surface of the separation plate (5) and the grooves (16) on the lower surface are arranged staggered with each other; A plurality of vertically arranged spoilers (8) are provided on the inner wall of the tower body (2); the upper end of the spoiler (8) is fixedly connected to the lower surface of the separation plate (5), and the lower end extends to the upper surface of the next layer of separation plate (5); the upper end of the spoiler (8) is provided with a plurality of protrusions (17), and the protrusions (17) are evenly distributed along the length direction of the spoiler (8); the lower end of the spoiler (8) is provided with a plurality of grooves (18), and the grooves (18) are evenly distributed along the length direction of the spoiler (8); the protrusions (17) at the upper end and the grooves (18) at the lower end are staggered. A plurality of guide plates (9) arranged obliquely are also provided on the inner wall of the tower body (2); the upper end of the guide plate (9) is fixedly connected to the inner wall of the tower body (2); the lower end of the guide plate (9) is fixedly connected to the upper surface of the separation plate (5); a plurality of guide grooves (20) are provided at the lower end of the guide plate (9); the guide grooves (20) are evenly distributed along the length direction of the guide plate (9); a plurality of spray holes (19) are provided at the upper end of the guide plate (9); the spray holes (19) and the guide grooves (20) are staggered.

2. A stripping tower internals system based on flow path optimization and multi-stage separation according to claim 1, characterized in that: The spray device (10) comprises a spray pipe (11) and a plurality of nozzles (12); the spray pipe (11) is arranged circumferentially along the top of the tower body (2); the nozzles (12) are evenly distributed on the spray pipe (11); and a plurality of horizontal nozzles (13) are provided on the spray pipe (11).

3. A stripping tower internals system based on flow path optimization and multi-stage separation according to claim 1, characterized in that: The diameter of the through holes (7) is 3 mm to 5 mm, and the center distance is 10 mm to 15 mm.

4. A stripping tower internals system based on flow path optimization and multi-stage separation according to claim 1, characterized in that: The guide groove 1 (15) has a width of 2 cm to 4 cm and a depth of 1 cm to 2 cm, and is arranged along the radial direction of the separation plate (5) with a spacing of 10 cm to 20 cm.

5. A stripping tower internals system based on flow path optimization and multi-stage separation according to claim 1, characterized in that: The spacing between the nozzles (12) is 10 cm to 20 cm, the spraying direction of the nozzles (12) is tilted downward, the spraying angle is 30° to 45°, and the spraying distance is 50 cm to 80 cm.

6. A stripping tower internals system based on flow path optimization and multi-stage separation according to claim 1, characterized in that: The guide plate (9) has an inclination angle of 15° to 30°, a length of 20 cm to 40 cm, a width of 10 cm to 20 cm, and a diameter of the spray holes (19) of 2 mm to 4 mm, with a spacing of 5 cm to 10 cm.

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