CN219003018U - Fluidized bed photocatalytic reactor - Google Patents
Fluidized bed photocatalytic reactor Download PDFInfo
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- CN219003018U CN219003018U CN202223330369.8U CN202223330369U CN219003018U CN 219003018 U CN219003018 U CN 219003018U CN 202223330369 U CN202223330369 U CN 202223330369U CN 219003018 U CN219003018 U CN 219003018U
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Abstract
The utility model provides a fluidized bed photocatalytic reactor, which comprises an upper stainless steel welding body, a transparent reactor main body, a bottom plate, an ultraviolet lamp tube and a gas redistributor; the reactor main body is annular, the upper stainless steel welding body is connected to the upper end of the reactor main body in a sealing way, and the bottom plate is connected to the lower end of the reactor main body in a sealing way; the upper stainless steel welding body is of a hollow cavity structure, the top of the upper stainless steel welding body is provided with a catalyst charging port, and the side of the upper stainless steel welding body is provided with a gas inlet and a liquid outlet; the gas inlet is connected with the gas redistributor through a gas pipeline; the ultraviolet lamp tube is arranged in the reactor main body, and the bottom plate is provided with a liquid inlet and a clean-out opening which are communicated with the inside of the reactor main body. The fluidized bed photocatalytic reactor has the advantages of more sufficient reactant distribution, more sufficient reaction, more sufficient illumination utilization efficiency and more convenient catalyst feeding, discharging and recycling.
Description
Technical Field
The utility model relates to the technical field of chemical experimental devices, in particular to a fluidized bed photocatalytic reactor.
Background
The photocatalysis technology is a green technology with important application prospect in the fields of energy and environment, can thoroughly degrade organic dirt into carbon dioxide and water under the irradiation of light, is considered by the environment protection community as a revolutionary breakthrough in the 21 st century environmental purification field, and a photocatalysis reactor and a photocatalysis catalyst are cores of photocatalysis reaction.
Among the key factors that need to be considered in the design of the photocatalytic reactor are the reaction efficiency of the reactants, and the factors related to the reaction include whether the contact of the reactants is sufficient, whether the utilization of the light is sufficient, and the like.
The application number is as follows: 201910209565.3, the utility model name is: in the patent of the utility model of the two-dimensional photocatalytic fluidized bed device, the illumination utilization rate is optimized by superposing the structure of the two-dimensional fluidized bed.
The application number is as follows: 202110143230.3, the utility model name is: in the utility model patent of an integrated activated carbon ozone photocatalysis internal circulating fluidized bed reaction device, the full contact degree of reactants is improved by utilizing reasonable structural design.
In addition, no special solutions are currently available for the blowing, feeding and recovery of the catalyst.
In order to solve the problems of sufficient contact of reactants, sufficient illumination utilization, convenient feeding, discharging and recycling of the catalyst and the like, an ideal technical solution is always sought.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides a fluidized bed photocatalytic reactor with more sufficient reactant distribution, more sufficient reaction, more sufficient illumination utilization efficiency and more convenient catalyst feeding, discharging and recycling.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a fluidized bed photocatalytic reactor comprises an upper stainless steel welding body, a transparent reactor main body, a bottom plate, an ultraviolet lamp tube and a gas redistributor;
the reactor main body is annular, the upper stainless steel welding body is connected to the upper end of the reactor main body in a sealing way, and the bottom plate is connected to the lower end of the reactor main body in a sealing way;
the upper stainless steel welding body is of a hollow cavity structure, the top of the upper stainless steel welding body is provided with a catalyst charging port communicated with the inside of the reactor main body, and the side part of the upper stainless steel welding body is provided with a gas inlet and a liquid outlet communicated with the inside of the reactor main body;
the gas inlet is connected with a gas redistributor through a gas pipeline, the gas redistributor is suspended at the middle lower part of the reactor main body and comprises a diameter-expanding bell mouth and a bottom plate which is arranged at the bell mouth and is distributed with ventilation holes;
the ultraviolet lamp tube is arranged in the reactor main body, and the bottom plate is provided with a liquid inlet and a clean-up opening which are communicated with the inside of the reactor main body.
Based on the above, the lower edge of the upper stainless steel welding body is fixedly connected with the bottom plate through a fixed screw rod.
The number of the ultraviolet lamp tubes is at least two, and the ultraviolet lamp tubes are uniformly distributed around the center of the reactor body.
The reactor main body is made of high borosilicate glass.
Based on the above, the number of the ultraviolet lamp tubes is three, and the included angle of the three ultraviolet lamp tubes is 120 degrees.
The above, the liquid outlet is provided with a fluidization plate.
The gas redistributor is connected with the gas pipeline through threads.
The catalyst charging port is of a chuck type structure.
The above, the liquid inlet is provided with a fluidization plate.
The ultraviolet lamp tube is fixed on the bottom plate, and the wiring end of the ultraviolet lamp tube is positioned in the area below the bottom plate.
Compared with the prior art, the utility model has substantial characteristics and progress, and in particular has the following advantages:
1. catalyst is added from the top, and the blowing is discharged from the bottom blowing-out port, so that the catalyst is more convenient to feed and blow.
2. The gas redistributor is arranged at the tail end of the gas inlet pipeline, so that the contact between the reaction gas and the reaction liquid is more uniform.
3. The ultraviolet lamp is adopted to provide illumination sources, so that the illumination intensity is more uniform and more sufficient.
4. The liquid inlet at the bottom of the reactor and the liquid outlet at the upper part of the reactor are both provided with fluidization plates for solid-liquid separation of the catalyst and the reaction liquid, and the catalyst is more convenient to recycle.
5. The reactor main body is made of transparent materials, so that the flowing state of the gas, liquid and solid phases in the reactor can be conveniently observed.
Drawings
FIG. 1 is a schematic view of the structure of a fluidized-bed photocatalytic reactor according to the present utility model.
FIG. 2 is a schematic diagram of the bottom plate of the fluidized bed photocatalytic reactor according to the present utility model.
In the figure: 1. an upper stainless steel welded body; 2. a reactor body; 3. a bottom plate; 4. an ultraviolet lamp tube; 5. a gas redistributor; 6. fixing a screw rod; 7. a catalyst feed inlet; 8. a gas inlet; 9. a liquid outlet; 10. a gas conduit; 11. ventilation holes; 12. a liquid inlet; 13. and (5) cleaning the mouth.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
As shown in fig. 1 and 2, a fluidized bed photocatalytic reactor comprises an upper stainless steel welded body 1, a transparent reactor body 2 made of high boron silicon, a bottom plate 3, ultraviolet lamp tubes 4 and a gas redistributor 5.
The reactor main body 2 is annular, the upper stainless steel welding body 1 is connected to the upper end of the reactor main body 2 in a sealing way, the bottom plate 3 is connected to the lower end of the reactor main body 2 in a sealing way, a closed reaction cavity is formed, the reactor main body 2 is transparent, the internal reaction state can be conveniently observed, and the upper stainless steel welding body 1 and the bottom plate 3 are connected and fixed through the fixed screw rod 6 to lock the reactor main body 2.
The upper stainless steel welding body 1 is of a hollow cavity structure, a chuck type catalyst charging port 7 communicated with the inside of the reactor main body is arranged at the top of the upper stainless steel welding body 1, and a gas inlet 8 and a liquid outlet 9 communicated with the inside of the reactor main body are arranged at the side part of the upper stainless steel welding body.
The gas inlet 8 is connected with the gas redistributor 5 through the gas pipeline 10, the gas redistributor 5 is suspended at the middle lower part of the reactor main body, the gas redistributor comprises a diameter-expanding horn mouth and a bottom plate which is arranged at the horn mouth and provided with air holes 11, and the gas redistributor 5 is connected with the gas pipeline 10 through threads. The function of the device is to re-disperse the incoming gas flow so that the gas and the liquid can fully contact and react.
The ultraviolet lamp tubes 4 are arranged in the reactor main body 2, the number of the ultraviolet lamp tubes is three, the included angles of the three ultraviolet lamp tubes are 120 degrees, the ultraviolet lamp tubes 4 are fixed on the bottom plate 3, and the wiring terminals of the ultraviolet lamp tubes 4 are located in the area below the bottom plate 3.
The bottom plate 3 is provided with a liquid inlet 12 and a clean-out opening 13 which are communicated with the inside of the reactor main body 2.
The liquid outlet 9 and the liquid inlet 12 are provided with fluidization plates, and the structures of the fluidization plates are mesh stainless steel filter plates and are used for intercepting solids through liquid so as to realize solid-liquid separation.
The working process comprises the following steps:
firstly, a certain amount of photocatalytic reaction catalyst is added into the fluidized bed photocatalytic reactor from a catalyst feed port 7 at the top of the fluidized bed photocatalytic reactor, then liquid is introduced from a liquid inlet 12 at the bottom of the fluidized bed photocatalytic reactor, liquid flows out of the fluidized bed reactor from a liquid outlet 9 at the upper part of the reactor through a fluidization plate, meanwhile, gas is introduced from a gas inlet 8 at the upper part of the reactor, passes through a gas pipeline 10 from the upper part of the reactor, then comes out of a gas redistributor 5 at the bottom of the reactor and enters the reactor, an ultraviolet lamp light source is turned on to perform photocatalytic reaction, and the catalyst is in a flowing state in the liquid to realize photocatalytic reaction.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (10)
1. A fluidized bed photocatalytic reactor, characterized by: comprises an upper stainless steel welding body, a transparent reactor main body, a bottom plate, an ultraviolet lamp tube and a gas redistributor;
the reactor main body is annular, the upper stainless steel welding body is connected to the upper end of the reactor main body in a sealing way, and the bottom plate is connected to the lower end of the reactor main body in a sealing way;
the upper stainless steel welding body is of a hollow cavity structure, the top of the upper stainless steel welding body is provided with a catalyst charging port communicated with the inside of the reactor main body, and the side part of the upper stainless steel welding body is provided with a gas inlet and a liquid outlet communicated with the inside of the reactor main body;
the gas inlet is connected with a gas redistributor through a gas pipeline, the gas redistributor is suspended at the middle lower part of the reactor main body and comprises a diameter-expanding bell mouth and a bottom plate which is arranged at the bell mouth and is distributed with ventilation holes;
the ultraviolet lamp tube is arranged in the reactor main body, and the bottom plate is provided with a liquid inlet and a clean-up opening which are communicated with the inside of the reactor main body.
2. The fluidized bed photocatalytic reactor according to claim 1, characterized in that: the lower edge of the upper stainless steel welding body is fixedly connected with the bottom plate through a fixed screw rod.
3. The fluidized bed photocatalytic reactor according to claim 2, characterized in that: the number of the ultraviolet lamp tubes is at least two, and the ultraviolet lamp tubes are uniformly distributed around the center of the reactor main body.
4. A fluidized bed photocatalytic reactor according to claim 3, characterized in that: the reactor main body is made of high borosilicate glass.
5. The fluidized bed photocatalytic reactor according to claim 2, characterized in that: the number of the ultraviolet lamp tubes is three, and the included angle of the three ultraviolet lamp tubes is 120 degrees.
6. The fluidized bed photocatalytic reactor according to claim 4, characterized in that: the liquid outlet is provided with a fluidization plate.
7. The fluidized bed photocatalytic reactor according to claim 6, characterized in that: the gas redistributor is connected with the gas pipeline through threads.
8. The fluidized bed photocatalytic reactor according to claim 7, characterized in that: the catalyst charging port is of a chuck type structure.
9. The fluidized bed photocatalytic reactor according to claim 8, characterized in that: the liquid inlet is provided with a fluidization plate.
10. The fluidized bed photocatalytic reactor according to claim 9, characterized in that: the ultraviolet lamp tube is fixed on the bottom plate, and the wiring end of the ultraviolet lamp tube is positioned in the area below the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223330369.8U CN219003018U (en) | 2022-12-13 | 2022-12-13 | Fluidized bed photocatalytic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223330369.8U CN219003018U (en) | 2022-12-13 | 2022-12-13 | Fluidized bed photocatalytic reactor |
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| Publication Number | Publication Date |
|---|---|
| CN219003018U true CN219003018U (en) | 2023-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223330369.8U Active CN219003018U (en) | 2022-12-13 | 2022-12-13 | Fluidized bed photocatalytic reactor |
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| Country | Link |
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| CN (1) | CN219003018U (en) |
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2022
- 2022-12-13 CN CN202223330369.8U patent/CN219003018U/en active Active
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