Steel catalytic ozonation contact reaction tank
By using a compact design and optimized gas distribution and backwashing devices in a steel ozone catalytic oxidation contact reaction tank, the problems of large footprint, easy corrosion, and easy catalyst blockage in traditional reaction tanks have been solved, achieving efficient, stable, and durable ozone catalytic oxidation treatment.
Patent Information
- Application Number
- CN202520217813.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing reinforced concrete ozone catalytic oxidation reactors are large in size, occupy a large area, are inconvenient to maintain, are susceptible to corrosion by chemicals in wastewater, and the catalyst is prone to fouling or accumulation, affecting performance and service life.
It adopts a steel structure with fiberglass anti-corrosion material lining, has a compact design, is equipped with a stainless steel 316L type catalyst support frame, and is equipped with ozone gas distribution and catalyst backwashing water distribution devices, optimizing catalyst layout and facilitating maintenance.
It saves land resources, improves the efficiency of ozone catalytic oxidation reaction, extends catalyst life, has a stable and corrosion-resistant structure, and is convenient to operate and maintain.
Smart Images
Figure CN223646378U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of ozone catalytic oxidation, and particularly relates to a steel ozone catalytic oxidation contact reaction tank. BACKGROUND
[0002] With the continuous development of ozone catalytic oxidation technology, the ozone catalytic oxidation technology is increasingly widely applied in the treatment of refractory organic wastewater. The ozone catalytic oxidation technology can efficiently degrade organic matters in wastewater, improve the water quality of effluent, reduce the use of chemical agents and reduce the operation cost through the synergistic effect of ozone and a catalyst.
[0003] However, the traditional ozone catalytic oxidation reaction tank is mostly a steel concrete tank. The steel concrete tank is often designed to be large, so as to provide sufficient volume for treating wastewater and ensure that the wastewater has sufficient residence time in the tank to complete the catalytic oxidation reaction. However, such a design leads to an increase in the occupied area and is inconvenient to maintain. In addition, the wastewater may contain various chemical substances such as acids, bases and salts, and these substances have a certain corrosive effect on the steel concrete material. If the steel concrete tank is exposed to the corrosive environment for a long time, the structure of the steel concrete tank may be damaged, resulting in leakage or performance degradation. In addition, the catalyst is prone to fouling or accumulation during use, which reduces the activity of the catalyst.
[0004] Therefore, the application provides a steel ozone catalytic oxidation contact reaction tank to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] The application provides a steel ozone catalytic oxidation contact reaction tank, which aims to solve the problems of the existing steel concrete ozone catalytic oxidation reaction tank, such as large occupied area, inconvenient maintenance, corrosion by chemical substances in wastewater, fouling or accumulation of catalysts, and influence on performance and service life.
[0006] To achieve the above object, the application provides the following technical scheme: a steel ozone catalytic oxidation contact reaction tank, comprising a bottom plate for being fixed with equipment, a side wall plate fixedly arranged at the top end of the bottom plate, a first stiffening rib fixedly arranged at the top end of the side wall plate, two first stiffening ribs and a second stiffening rib fixedly arranged in the side wall plate and dividing the side wall plate into a first ozone contact chamber, a first ozone reaction chamber, a second ozone contact chamber and a second ozone reaction chamber, and the bottom plate, the side wall plate and the top plate are all made of a steel structure lined with a glass steel corrosion-resistant material.
[0007] The reaction tank further comprises a first catalyst supporting layer support frame and a second catalyst supporting layer support frame respectively welded in the first ozone contact chamber and the second ozone contact chamber, a first catalyst filling layer and a second catalyst filling layer respectively fixedly arranged at the top end of the first catalyst supporting layer support frame and the second catalyst supporting layer support frame, an ozone gas distribution device arranged at a position below the first catalyst supporting layer support frame in the first ozone contact chamber and a position below the second catalyst supporting layer support frame in the second ozone contact chamber, and a catalyst backwashing water and gas distribution device arranged at a position above the first catalyst filling layer in the first ozone contact chamber and a position above the second catalyst filling layer in the second ozone contact chamber.
[0008] The first catalyst supporting layer support frame and the second catalyst supporting layer support frame are both made of stainless steel 316L profile steel, and the pore size of the first catalyst supporting layer support frame and the second catalyst supporting layer support frame is smaller than the particle size of the ozone catalyst.
[0009] Preferably, two first stiffening ribs are arranged between the first ozone contact chamber and the first ozone reaction chamber and between the second ozone contact chamber and the second ozone reaction chamber, the second stiffening rib is arranged between the first ozone reaction chamber and the second ozone contact chamber, the bottom end of the first ozone contact chamber is communicated with the bottom end of the first ozone reaction chamber, the top end of the first ozone reaction chamber is communicated with the top end of the second ozone contact chamber, the bottom end of the second ozone contact chamber is communicated with the bottom end of the second ozone reaction chamber, a drain elbow for water outlet is fixedly arranged at the top end inside the second ozone reaction chamber, and the end of the drain elbow away from the second ozone reaction chamber is fixedly arranged with a water outlet flange connected with the side wall plate fixed connector.
[0010] Preferably, the top end of each of the two first stiffening ribs is provided with a ventilation hole.
[0011] Preferably, the top plate is fixedly provided with a first catalyst filling hole and a second catalyst filling hole for respectively communicating with the first ozone contact chamber and the second ozone contact chamber, and the bottom plate is fixedly provided with an ozone tail gas discharge flange and a standby flange for communicating with the first ozone contact chamber, the first ozone reaction chamber, the second ozone contact chamber and the second ozone reaction chamber.
[0012] Preferably, a water distribution distributor is fixedly arranged at the top end inside the first ozone contact chamber, and the end of the water distribution distributor away from the first ozone contact chamber is fixedly arranged with a water inlet flange connected with the top plate.
[0013] Preferably, the sidewall panel is fixedly provided with a first catalyst backwash drain interface flange and a second catalyst backwash drain interface flange at the outer top of the first ozone contact chamber and the second ozone contact chamber, respectively. The sidewall panel is provided with a first discharge hole and a second discharge hole at the outer upper position of the first catalyst support layer support frame and the second catalyst support layer support frame, respectively. The bottom end of the bottom plate is fixedly provided with an air vent. The sidewall panel is fixedly provided with a first ozone inlet interface flange and a second ozone inlet interface flange, as well as a first catalyst backwash interface flange and a second catalyst backwash interface flange, respectively, at the outer side of the two ozone gas distribution devices and the two catalyst backwash water distribution and gas distribution devices.
[0014] Preferably, the sidewall panel is fixedly provided with a first inspection hole, a second inspection hole, a third inspection hole, and a fourth inspection hole on the outer side of the bottom end of the first ozone contact chamber, the first ozone reaction chamber, the second ozone contact chamber, and the outer side of the top and bottom end of the sidewall panel is fixedly provided with a third viewing mirror, a first viewing mirror, a fourth viewing mirror, and a second viewing mirror on the outer side of the top and bottom end of the first ozone contact chamber and the second ozone reaction chamber, respectively.
[0015] Preferably, the ozone distribution device includes a variable diameter pipe, an ozone intake main pipe fixedly connected to the variable diameter pipe, an ozone intake branch pipe fixedly connected to the ozone intake main pipe, a disc-type titanium aerator fixedly connected to the ozone intake branch pipe, a first pipe intake support fixedly installed on the ozone intake branch pipe, and a second pipe intake support fixedly installed on the ozone intake main pipe. A plurality of ozone intake branch pipes are provided, and the plurality of ozone intake branch pipes are distributed on both sides of the ozone intake main pipe in a non-T-shaped manner.
[0016] Preferably, the catalyst backwash water and gas distribution device includes a backwash water and gas inlet main pipe, a perforated water and gas distribution pipe fixedly installed on the backwash water and gas inlet main pipe, a first pipe support frame fixedly installed on the perforated water and gas distribution pipe, and a second support frame fixedly installed on the backwash water and gas inlet main pipe. A plurality of perforated water and gas distribution pipes are provided, and the plurality of perforated water and gas distribution pipes are distributed on both sides of the backwash water and gas inlet main pipe in a non-T-shaped manner. Small holes for uniformly distributing water or gas are provided on both sides of the lower oblique part of the perforated water and gas distribution pipes.
[0017] This steel ozone catalytic oxidation contact reactor features a compact design, which occupies less space compared to reinforced concrete tanks, thus saving land resources. It is suitable for treating recalcitrant organic wastewater with a flow rate greater than 10 m3 / h and less than or equal to 100 m3 / h. The entire structure is made of steel, which ensures structural stability, high strength, and strong corrosion resistance.
[0018] This steel ozone catalytic oxidation contact reactor is equipped with an ozone distribution device, which allows wastewater and ozone to be fully mixed and contact the ozone catalyst after being distributed and flowing in opposite directions, thereby improving the efficiency of the ozone catalytic oxidation reaction.
[0019] The steel ozone catalytic oxidation contact reaction tank is equipped with a first catalyst support layer support frame and a second catalyst support layer support frame to support the first catalyst filling layer and the second catalyst filling layer, so that the ozone catalyst is not lost. At the same time, the catalyst backwashing water and gas distribution device is set up to backwash, which can avoid the catalyst surface clogging and extend the service life of the catalyst.
[0020] The steel ozone catalytic oxidation contact reaction tank is equipped with a first sight glass, a second sight glass, a third sight glass, a fourth sight glass, a first inspection hole, a second inspection hole, a third inspection hole, and a fourth inspection hole, which facilitates the operation and maintenance of the equipment. Attached Figure Description
[0021] Fig. 1 A schematic diagram of a steel ozone catalytic oxidation contact reaction tank;
[0022] Fig. 2 This is a schematic diagram of an ozone distribution device in a steel ozone catalytic oxidation contact reaction tank.
[0023] Fig. 3 This is a schematic diagram of the catalyst backwashing water and gas distribution device in a steel ozone catalytic oxidation contact reaction tank.
[0024] In the picture:
[0025] 1. Side wall panel; 2. First stiffening rib; 3. Second stiffening rib; 4. Bottom plate; 5. Top plate; 6. First discharge hole; 7. First inspection hole; 8. Second inspection hole; 9. Second discharge hole; 10. Third inspection hole; 11. Fourth inspection hole; 12. First catalyst loading hole; 13. Second catalyst loading hole; 14. First ozone inlet flange; 15. Second ozone inlet flange; 16. First sight glass; 17. Second sight glass; 18. First catalyst backwashing flange; 19. Second catalyst backwashing flange; 20. First catalyst support layer support frame; 21. Second catalyst support layer support frame; 22. First catalyst filling layer; 23. Second catalyst filling layer; 24. Third sight glass; 25. Fourth sight glass; 26. First catalyst... 27. Second catalyst backwash drain flange; 28. Water inlet flange; 29. Water distributor; 30. Product water inlet flange; 31. Drain elbow; 32. Ozone tail gas emission flange; 33. Spare flange; 34. Vent hole; 35. Drain pipe; 36. Reducer; 37. Ozone main inlet pipe; 38. Ozone branch inlet pipe; 39. Disc titanium aerator; 40. First pipeline air inlet support; 41. Second pipeline air inlet support; 42. First ozone contact chamber; 43. First ozone reaction chamber; 44. Second ozone contact chamber; 45. Second ozone reaction chamber; 46. Backwash water and air inlet main pipe; 47. Perforated water and gas distribution pipe; 48. First pipeline support frame; 49. Second support frame. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] Example 1
[0028] This embodiment provides a steel-made ozone catalytic oxidation contact reaction tank, such as... Figs. 1-3As shown, the reaction tank includes a base plate 4 for fixing to the equipment, a side wall plate 1 fixedly installed at the top of the base plate 4, a first stiffening rib 2 fixedly installed at the top of the side wall plate 1, and two first stiffening ribs 2 and a second stiffening rib 3 fixedly installed inside the side wall plate 1 and dividing the side wall plate 1 into a first ozone contact chamber 42, a first ozone reaction chamber 43, a second ozone contact chamber 44, and a second ozone reaction chamber 45 that are interconnected. The base plate 4, side wall plate 1, and top plate 5 are all made of steel structure lined with fiberglass anti-corrosion material. The reaction tank also includes a first catalyst support layer support frame 20 and a second catalyst support layer support frame 21 respectively welded into the first ozone contact chamber 42 and the second ozone contact chamber 44, and the first catalyst support layer support frame 20 and the second catalyst support layer support frame respectively fixedly installed. The top of the first catalyst filling layer 22 and the second catalyst filling layer 23 are respectively provided with ozone gas distribution devices at the positions corresponding to the position below the first catalyst support layer support frame 20 in the first ozone contact chamber 42 and the position corresponding to the position below the second catalyst support layer support frame 21 in the second ozone contact chamber 44, and catalyst backwashing water and gas distribution devices are respectively provided at the positions corresponding to the position above the first catalyst filling layer 22 in the first ozone contact chamber 42 and the position corresponding to the position above the second catalyst filling layer 23 in the second ozone contact chamber 44; the first catalyst support layer support frame 20 and the second catalyst support layer support frame 21 are both made of 316L stainless steel profiles, and the pore size of the first catalyst support layer support frame 20 and the second catalyst support layer support frame 21 is smaller than the particle size of the ozone catalyst.
[0029] Two first stiffening ribs 2 are respectively disposed between the first ozone contact chamber 42 and the first ozone reaction chamber 43, and between the second ozone contact chamber 44 and the second ozone reaction chamber 45. A second stiffening rib 3 is disposed between the first ozone reaction chamber 43 and the second ozone contact chamber 44. The bottom end of the first ozone contact chamber 42 is connected to the bottom end of the first ozone reaction chamber 43, the top end of the first ozone reaction chamber 43 is connected to the top end of the second ozone contact chamber 44, and the bottom end of the second ozone contact chamber 44 is connected to the bottom end of the second ozone reaction chamber 45. A drain bend 31 for water production is fixedly disposed at the top of the interior of the second ozone reaction chamber 45. The end of the drain bend 31 away from the second ozone reaction chamber 45 is fixedly disposed with a connection to the side wall plate 1. The water production interface flange 30 of the fixed connector has vent holes 34 at the top of each of the two first stiffening ribs 2. The top plate 5 is fixedly provided with a first catalyst filling hole 12 and a second catalyst filling hole 13 for communicating with the first ozone contact chamber 42 and the second ozone contact chamber 44 respectively. The bottom plate 4 is fixedly provided with an ozone exhaust gas emission interface flange 32 and a spare interface flange 33 for communicating with the first ozone contact chamber 42, the first ozone reaction chamber 43, the second ozone contact chamber 44 and the second ozone reaction chamber 45. The top of the first ozone contact chamber 42 is fixedly provided with a water distributor 29. The end of the water distributor 29 away from the first ozone contact chamber 42 is fixedly provided with a water inlet interface flange 28 for connecting with the top plate 5.
[0030] In use, water enters the reaction tank through the inlet flange 28 on the top plate 5 and connects to the water distributor 29. The water distributor 29 evenly distributes the water to the top of the first ozone contact chamber 42, ensuring uniform contact between the water and ozone. After entering the first ozone contact chamber 42, the water makes initial contact with the introduced ozone, and the ozone begins to react with the pollutants in the water. Simultaneously, the water passes through the first catalyst filling layer 22 on the first catalyst support frame 20, where the presence of the catalyst accelerates the reaction rate between ozone and pollutants. Then, the reacted water flows into the first ozone reaction chamber 43 for further reaction between ozone and pollutants. Subsequently, the water enters the second ozone contact chamber 44, comes into contact with ozone again, and undergoes a secondary catalytic reaction through the second catalyst filling layer 23 on the second catalyst support frame 21. Finally... Water enters the second ozone reaction chamber 45 to complete the entire ozone catalytic treatment process. However, during the reaction, the catalyst can be backwashed periodically using a catalyst backwashing water and gas distribution device to remove accumulated impurities. Subsequently, the treated water is collected at the top of the second ozone reaction chamber 45 through a drain elbow 31 and flows to the product water interface flange 30, which is fixedly connected to the side wall plate 1, and finally flows out of the reaction tank. The ozone that is not completely consumed and other possible exhaust gases are discharged through the ozone exhaust gas emission interface flange 32 on the bottom plate 4 for further treatment or discharge. In addition, the spare interface flange 33 may be used for future expansion or connection in special circumstances. Meanwhile, the first catalyst loading hole 12 and the second catalyst loading hole 13 on the top plate 5 allow the catalyst to be replaced or replenished when necessary.
[0031] Understandably, in order to ensure the operation of the reaction tank, the side wall plate 1 is fixedly provided with the first catalyst backwash drainage interface flange 26 and the second catalyst backwash drainage interface flange 27 at the top outer side of the first ozone contact chamber 42 and the second ozone contact chamber 44, respectively. The side wall plate 1 is provided with the first discharge hole 6 and the second discharge hole 9 at the upper outer side of the first catalyst support layer support frame 20 and the second catalyst support layer support frame 21, respectively. The bottom plate 4 is fixedly provided with the vent pipe 35. The side wall plate 1 is fixedly provided with the first ozone inlet interface flange 14 and the second ozone inlet interface flange 15, the first catalyst backwash interface flange 18 and the second catalyst backwash interface flange 19 at the outer side of the two ozone gas distribution devices and the two catalyst backwash water distribution and gas distribution devices, respectively.
[0032] The first catalyst backwash drain port flange 26 and the second catalyst backwash drain port flange 27 facilitate quick connection of the drain pipe during catalyst backwashing, effectively discharging backwash wastewater and ensuring the cleanliness and efficient operation of the catalyst layer. The first discharge port 6 and the second discharge port 9 make catalyst replacement and maintenance more convenient. Personnel can enter the catalyst layer through these ports to perform necessary inspections and replacements, improving equipment maintainability and service life. The first ozone inlet port flange 14 and the second ozone inlet port flange 15 correspond to the two ozone contact chambers, ensuring that ozone gas can accurately and efficiently enter their respective treatment areas. This design helps optimize ozone distribution, increasing the contact area and reaction efficiency between ozone and water. The first catalyst backwash port flange 18 and the second catalyst backwash port flange 19 facilitate water and gas distribution during catalyst backwashing. Through these two ports, backwash water and / or gas can be introduced to thoroughly clean the catalyst layer and restore its catalytic activity.
[0033] Specifically, the ozone distribution device includes a reducer 36, an ozone intake main pipe 37 fixedly connected to the reducer 36, an ozone intake branch pipe 38 fixedly connected to the ozone intake main pipe 37, a disc-type titanium aerator 39 fixedly connected to the ozone intake branch pipe 38, a first pipe intake support 40 fixedly installed on the ozone intake branch pipe 38, and a second pipe intake support 41 fixedly installed on the ozone intake main pipe 37. Several ozone intake branch pipes 38 are provided, and the several ozone intake branch pipes 38 are distributed on both sides of the ozone intake main pipe 37 in a non-T-shaped manner.
[0034] It should be added that the ozone intake pipe 37 on the ozone distribution device located in the first ozone contact chamber 42 and the second ozone contact chamber 44 is fixedly connected to the first ozone intake interface flange 14 and the second ozone intake interface flange 15, respectively. The first pipe intake support 40 and the second pipe intake support 41 on the ozone distribution device located in the first ozone contact chamber 42 and the second ozone contact chamber 44 are fixedly connected to the interior of the first ozone contact chamber 42 and the second ozone contact chamber 44, respectively. Furthermore, the number of disc titanium aerators 39 in the first ozone contact chamber 42 is less than the number of disc titanium aerators 39 in the second ozone contact chamber 44.
[0035] When the ozone generator produces ozone gas, it is first introduced into the first ozone contact chamber 42 through the first ozone inlet flange 14, which is fixedly connected to the ozone inlet main pipe 37 of the ozone distribution device. Then, in the second ozone contact chamber 44, the ozone gas is introduced through the second ozone inlet flange 15, which is connected to the corresponding ozone inlet main pipe 37. The introduced ozone gas then flows within the ozone inlet main pipe 37, and the flow rate is adjusted by the reducer 36 to ensure uniform gas distribution. Since the ozone inlet branch pipes 38 are distributed on both sides of the ozone inlet main pipe 37 in a non-T-shaped configuration, the ozone gas can be evenly distributed to each branch pipe 38. The first pipe inlet support 40 is fixed to the ozone inlet branch pipe 38, providing necessary support to ensure its stability. The stability and positional accuracy within the first ozone contact chamber 42 are ensured, while the second pipe inlet support 41 is fixed to the ozone inlet main pipe 37, providing additional support for the main pipe and enhancing the structural stability of the entire gas distribution device. Next, ozone gas is evenly dispersed into the water in the form of tiny bubbles through disc-type titanium aerators 39. In the first ozone contact chamber 42, due to the relatively small number of disc-type titanium aerators 39, the gas dispersion is more concentrated, suitable for preliminary oxidation treatment. In the second ozone contact chamber 44, due to the larger number of disc-type titanium aerators 39, the gas dispersion is more uniform, providing a larger gas-liquid contact area, which is beneficial for deep oxidation reactions. Finally, the ozone gas dispersed in the water undergoes an oxidation reaction with pollutants under the action of a catalyst, converting the pollutants into harmless substances and improving treatment efficiency.
[0036] Furthermore, the catalyst backwash water and gas distribution device includes a backwash water and gas inlet main pipe 46, a perforated water and gas distribution pipe 47 fixedly installed on the backwash water and gas inlet main pipe 46, a first pipe support frame 48 fixedly installed on the perforated water and gas distribution pipe 47, and a second support frame 49 fixedly installed on the backwash water and gas inlet main pipe 46. Several perforated water and gas distribution pipes 47 are provided, and the several perforated water and gas distribution pipes 47 are distributed on both sides of the backwash water and gas inlet main pipe 46 in a non-T-shaped manner. Small holes for uniformly distributing water or gas are provided on both sides of the lower side of the perforated water and gas distribution pipes 47.
[0037] It should also be noted that the catalyst backwash water and gas distribution devices located in the first ozone contact chamber 42 and the second ozone contact chamber 44 have the same structure, and the backwash water and gas inlet pipes 46 on the catalyst backwash water and gas distribution devices in the first ozone contact chamber 42 and the second ozone contact chamber 44 are fixedly connected to the first catalyst backwash interface flange 18 and the second catalyst backwash interface flange 19, respectively. Furthermore, the first pipe support frame 48 and the second support frame 49 on the catalyst backwash water and gas distribution devices in the first ozone contact chamber 42 and the second ozone contact chamber 44 are fixedly installed inside the first ozone contact chamber 42 and the second ozone contact chamber 44, respectively.
[0038] In the first ozone contact chamber 42, the backwash medium enters through the first catalyst backwash port flange 18, while in the second ozone contact chamber 44, it enters through the second catalyst backwash port flange 19. Since the backwash water and air inlet pipe 46 is fixedly connected to the first catalyst backwash port flange 18 and the second catalyst backwash port flange 19 respectively, it ensures that the backwash medium can be smoothly introduced into the device. Then, the introduced backwash medium flows within the backwash water and air inlet pipe 46 and is distributed on both sides of the pipe in a non-T-shaped pattern through several perforated water and air distribution pipes 47, achieving uniform distribution of the medium. Because the perforated water and air distribution pipes 47 are provided with several small holes located on both sides of the pipe at an angle below, water or air can be evenly distributed into the catalyst. The first pipe support frame 48 is fixed to the perforated water-air distribution pipe 47, providing necessary support for the pipe and preventing it from deforming or being damaged due to excessive force during backwashing. The second support frame 49 is fixed to the backwash water and air inlet main pipe 46, providing additional support for the main pipe and ensuring the structural stability of the entire water and air distribution device. Then, when the backwash medium is evenly distributed to the catalyst through the small holes on the perforated water-air distribution pipe 47, it washes away the contaminants and deposits on the catalyst surface, thereby restoring the activity and efficiency of the catalyst. Finally, the wastewater generated during the backwashing process is discharged through the drain pipe 35, ensuring the cleanliness and regeneration of the catalyst. After backwashing, the activity of the catalyst is restored, and it can continue to effectively catalyze the reaction of ozone with pollutants.
[0039] It should be noted that the pipes, fittings and support frames inside the ozone gas distribution device and the catalyst backwash water and gas distribution device are all made of 316L stainless steel.
[0040] Example 2
[0041] Unlike Embodiment 1, to facilitate the operation and maintenance of the equipment, the side wall panel 1 is fixedly provided with a first inspection hole 7, a second inspection hole 8, a third inspection hole 10, and a fourth inspection hole 11 on the outer side of the bottom end of the first ozone contact chamber 42, the first ozone reaction chamber 43, the second ozone contact chamber 44, and the second ozone reaction chamber 45, respectively. A third viewing mirror 24, a first viewing mirror 16, a fourth viewing mirror 25, and a second viewing mirror 17 are fixedly provided on the outer side of the top and bottom ends of the side wall panel 1, respectively. The equipment is connected via the first ozone contact chamber 42, the first ozone reaction chamber 43, the second ozone contact chamber 44, and the second ozone reaction chamber 45. The bottom outer sides of the contact chamber 44 and the second ozone reaction chamber 45 are respectively provided with a first inspection hole 7, a second inspection hole 8, a third inspection hole 10 and a fourth inspection hole 11, allowing operators to easily enter the interior of these chambers for inspection, maintenance or replacement of parts. The top and bottom outer sides of the first ozone contact chamber 42 and the second ozone contact chamber 44 are respectively provided with a third sight glass 24, a first sight glass 16, a fourth sight glass 25 and a second sight glass 17, allowing operators to visually observe the working status and fluid conditions inside the chambers without entering them, which helps to promptly identify and solve problems and ensure the normal operation of the equipment.
[0042] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A steel-made ozone catalytic oxidation contact reaction tank, characterized in that: Includes a base plate (4) for fixing to the equipment, a side wall plate (1) fixedly installed at the top of the base plate (4), a first stiffening rib (2) fixedly installed at the top of the side wall plate (1), and two first stiffening ribs (2) and a second stiffening rib (3) fixedly installed inside the side wall plate (1) and dividing the inside of the side wall plate (1) into a first ozone contact chamber (42), a first ozone reaction chamber (43), a second ozone contact chamber (44), and a second ozone reaction chamber (45) that are interconnected. The base plate (4), the side wall plate (1), and the top plate (5) are all made of steel structure lined with fiberglass anti-corrosion material. The reaction tank further includes a first catalyst support layer support frame (20) and a second catalyst support layer support frame (21) welded to the first ozone contact chamber (42) and the second ozone contact chamber (44) respectively; a first catalyst filling layer (22) and a second catalyst filling layer (23) fixedly installed at the top of the first catalyst support layer support frame (20) and the second catalyst support layer support frame (21) respectively; an ozone gas distribution device installed in the first ozone contact chamber (42) at a position corresponding to the position below the first catalyst support layer support frame (20) and in the second ozone contact chamber (44) at a position corresponding to the position below the second catalyst support layer support frame (21) respectively; and a catalyst backwashing water and gas distribution device installed in the first ozone contact chamber (42) at a position corresponding to the position above the first catalyst filling layer (22) and in the second ozone contact chamber (44) at a position corresponding to the position above the second catalyst filling layer (23) respectively. The first catalyst support layer support frame (20) and the second catalyst support layer support frame (21) are both made of 316L stainless steel profiles, and the pore size of the first catalyst support layer support frame (20) and the second catalyst support layer support frame (21) is smaller than the particle size of the ozone catalyst.
2. The steel ozone catalytic oxidation contact reaction tank according to claim 1, characterized in that: Two first stiffening ribs (2) are respectively disposed between the first ozone contact chamber (42) and the first ozone reaction chamber (43) and between the second ozone contact chamber (44) and the second ozone reaction chamber (45). The second stiffening rib (3) is disposed between the first ozone reaction chamber (43) and the second ozone contact chamber (44). The bottom end of the first ozone contact chamber (42) is connected to the bottom end of the first ozone reaction chamber (43). The top end of the first ozone reaction chamber (43) is connected to the top end of the second ozone contact chamber (44). The bottom end of the second ozone contact chamber (44) is connected to the bottom end of the second ozone reaction chamber (45). A drain elbow (31) for water production is fixedly disposed at the top end of the second ozone reaction chamber (45). A water production interface flange (30) for fixed connection with the side wall plate (1) is fixedly disposed at the end of the drain elbow (31) away from the second ozone reaction chamber (45).
3. The steel ozone catalytic oxidation contact reaction tank according to claim 2, characterized in that: Both of the first stiffening ribs (2) have ventilation holes (34) at their top ends.
4. The steel ozone catalytic oxidation contact reaction tank according to claim 3, characterized in that: The top plate (5) is fixedly provided with a first catalyst filling hole (12) and a second catalyst filling hole (13) for communicating with the first ozone contact chamber (42) and the second ozone contact chamber (44) respectively. The bottom plate (4) is fixedly provided with an ozone exhaust gas emission interface flange (32) and a spare interface flange (33) for communicating with the first ozone contact chamber (42), the first ozone reaction chamber (43), the second ozone contact chamber (44) and the second ozone reaction chamber (45).
5. The steel ozone catalytic oxidation contact reaction tank according to claim 4, characterized in that: A water distributor (29) is fixedly installed at the top of the first ozone contact chamber (42). A water inlet flange (28) for connecting to the top plate (5) is fixedly installed at the end of the water distributor (29) away from the first ozone contact chamber (42).
6. The steel ozone catalytic oxidation contact reaction tank according to claim 5, characterized in that: The side wall plate (1) is fixedly provided with a first catalyst backwash drain interface flange (26) and a second catalyst backwash drain interface flange (27) at the outer top of the first ozone contact chamber (42) and the second ozone contact chamber (44), respectively. The side wall plate (1) is fixedly provided with a first discharge hole (6) and a second discharge hole (9) at the outer upper position of the first catalyst support layer support frame (20) and the second catalyst support layer support frame (21), respectively. The bottom plate (4) is fixedly provided with an air vent (35). The side wall plate (1) is fixedly provided with a first ozone inlet interface flange (14) and a second ozone inlet interface flange (15) and a first catalyst backwash interface flange (18) and a second catalyst backwash interface flange (19) at the outer side of the two ozone gas distribution devices and the two catalyst backwash water distribution and gas distribution devices, respectively.
7. The steel ozone catalytic oxidation contact reaction tank according to claim 6, characterized in that: The side wall panel (1) is fixedly provided with a first inspection hole (7), a second inspection hole (8), a third inspection hole (10) and a fourth inspection hole (11) on the outer side of the bottom end of the first ozone contact chamber (42), the first ozone reaction chamber (43), the second ozone contact chamber (44) and the second ozone reaction chamber (45), respectively. The side wall panel (1) is fixedly provided with a third viewing mirror (24), a first viewing mirror (16), a fourth viewing mirror (25) and a second viewing mirror (17) on the outer side of the top and bottom ends of the first ozone contact chamber (42) and the second ozone contact chamber (44), respectively.
8. The steel ozone catalytic oxidation contact reaction tank according to claim 6, characterized in that: The ozone distribution device includes a variable diameter (36), an ozone intake main pipe (37) fixedly connected to the variable diameter (36), an ozone intake branch pipe (38) fixedly connected to the ozone intake main pipe (37), a disc-type titanium aerator (39) fixedly connected to the ozone intake branch pipe (38), a first pipe intake support (40) fixedly installed on the ozone intake branch pipe (38), and a second pipe intake support (41) fixedly installed on the ozone intake main pipe (37). The ozone intake branch pipe (38) is provided with a plurality of such ozone intake branch pipes (38), which are distributed on both sides of the ozone intake main pipe (37) in a non-T-shaped manner.
9. The steel ozone catalytic oxidation contact reaction tank according to claim 6, characterized in that: The catalyst backwash water and gas distribution device includes a backwash water and gas inlet main pipe (46), a perforated water and gas distribution pipe (47) fixedly installed on the backwash water and gas inlet main pipe (46), a first pipe support frame (48) fixedly installed on the perforated water and gas distribution pipe (47), and a second support frame (49) fixedly installed on the backwash water and gas inlet main pipe (46). A plurality of perforated water and gas distribution pipes (47) are provided, and the plurality of perforated water and gas distribution pipes (47) are distributed on both sides of the backwash water and gas inlet main pipe (46) in a non-T-shaped form. Small holes for uniformly distributing water or gas are provided on both sides of the perforated water and gas distribution pipes (47) at their lower sides.