CN214131070U - Coiled plate type self-heating catalytic oxidizer - Google Patents
Coiled plate type self-heating catalytic oxidizer Download PDFInfo
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- CN214131070U CN214131070U CN202023052347.0U CN202023052347U CN214131070U CN 214131070 U CN214131070 U CN 214131070U CN 202023052347 U CN202023052347 U CN 202023052347U CN 214131070 U CN214131070 U CN 214131070U
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Abstract
The utility model discloses a roll up board-like self-heating catalytic oxidation ware, including reactor body, air inlet and gas vent, its characterized in that: the reactor body is composed of at least two spiral rolling plates, a side cover is arranged at the end part of each spiral rolling plate on the reactor body, at least two adjacent spiral channels are separated by nesting the at least two spiral rolling plates, a catalyst is arranged on at least one spiral rolling plate, at least one layer of spiral channel is communicated with the air inlet to form an air inlet channel, and at least one layer of spiral channel is communicated with the air outlet to form an air outlet channel. Compared with the prior art, the utility model has the following advantages: the whole device is compact in structure, can be subjected to standardized production, can directly select the installation number according to the requirement, and can greatly reduce the cost; meanwhile, the air resistance of the device is small, the load of a draught fan is reduced, compared with an activated carbon adsorption treatment technology, the scheme has no material consumption, and the long-term operation cost is extremely low.
Description
Technical Field
The utility model relates to a catalytic oxidation device field especially relates to a roll up board-like self-heating catalytic oxidation ware.
Background
The catalytic oxidation is a purification method for oxidizing and decomposing combustible substances in the exhaust gas at a lower temperature by using a catalyst, and compared with a thermal combustion method, the catalytic oxidation requires less auxiliary fuel, is low in energy consumption and is small in equipment and facility volume. However, the conventional catalytic oxidation apparatus is not widely used for various reasons.
The existing catalytic oxidation device utilizes a honeycomb structure to load a catalyst, although the contact area is large, the air resistance is large, and a large amount of kinetic energy needs to be consumed for driving airflow to flow; in addition, because the content of combustible components in the feed gas is unstable, the temperature fluctuation of the catalytic center is large, and even if the heat exchanger is adopted to recover the waste heat of the tail gas, the temperature of the catalytic center is often lower than the reaction temperature of catalytic oxidation, so that the reaction can not be carried out. In the existing scheme, in order to solve the problems, the gas resistance is often reduced by increasing the cross section of the honeycomb structure of the catalytic reaction center, and the temperature of the catalytic center is kept by increasing the heat exchange area, using a heat accumulator for heat storage, using a heating device for heating a catalytic area or adding a combustible component with a certain concentration in the raw material. The method is a 'sheep death reinforcement' type remedy, the device is often larger in size, more complex in structure and higher in energy consumption, and the problem cannot be fundamentally solved by a 'palliative' means for 'relieving' the problem at the cost of higher cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a plate-rolling type self-heating catalytic oxidizer.
The utility model discloses a realize through following technical scheme: the utility model provides a roll up board-like self-heating catalytic oxidation ware, includes reactor body, air inlet and gas vent, its characterized in that: the reactor body is composed of at least two spiral rolling plates, a side cover is arranged at the end part of each spiral rolling plate on the reactor body, at least two layers of adjacent spiral channels are separated by nesting the at least two spiral rolling plates, at least one layer of spiral channel is communicated with an air inlet to form an air inlet channel, at least one layer of spiral channel is communicated with an air outlet to form an air outlet channel, a spiral central area of each spiral rolling plate is a catalytic area, and catalytic carriers loaded with catalysts are arranged in the air inlet channel and/or the air outlet channel of the catalytic area.
As a further improvement to the scheme, the catalytic carrier is one or more of a ceramic ball, a ceramic ring and a honeycomb carrier.
As a further improvement of the scheme, the catalytic carrier is a catalytic spiral plate, the spiral shape of the catalytic spiral plate is the same as that of the spiral rolling plate, and the catalytic spiral plate is nested in the air inlet channel and/or the exhaust channel.
As a further improvement to the above, the intake passage is adjacent to the exhaust passage.
As a further improvement to the above scheme, the side cover is provided with an access hole and an access hole, the size of the access hole covers the catalytic zone, and the access hole is provided with an access cover.
Compared with the prior art, the utility model has the following advantages: the utility model is suitable for a gaseous catalytic oxidation field especially has huge technical advantage in the unstable catalytic oxidation field of feed gas group content such as VOC deals with. The whole device is compact in structure, can be subjected to standardized production, can directly select the installation number according to the requirement, and can greatly reduce the cost; meanwhile, the air resistance of the device is small, the load of a draught fan is reduced, no material consumption is caused, and the long-term running cost is extremely low.
Drawings
FIG. 1 is a schematic cross-sectional view of a scheme using a catalytic spiral plate in an intake passage or an exhaust passage.
Fig. 2 is a schematic cross-sectional structure of a scheme using catalytic spiral plates in an intake passage and an exhaust passage.
Fig. 3 is a schematic cross-sectional structure of a scheme using a ceramic ball, a ceramic ring or a honeycomb carrier in an intake passage and an exhaust passage.
Fig. 4 is a side cover structure schematic view.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The utility model provides a roll up board-like self-heating catalytic oxidation ware, includes reactor body, air inlet 1 and gas vent 2, its characterized in that: the reactor body is composed of at least two spiral rolling plates 7, a side cover 5 is arranged at the end part of each spiral rolling plate 7 on the reactor body, at least two layers of adjacent spiral channels are separated by nesting the at least two spiral rolling plates 7, at least one layer of spiral channel is communicated with the air inlet 1 to form an air inlet channel 3, at least one layer of spiral channel is communicated with the air outlet 2 to form an air outlet channel 4, the spiral central area of each spiral rolling plate 7 is a catalytic area, and catalytic carriers loaded with catalysts are arranged in the air inlet channel 3 and/or the air outlet channel 4 of the catalytic area.
The catalytic carrier is one or more of ceramic ball 81, ceramic ring 82 and honeycomb carrier 83; or the catalytic carrier is a catalytic spiral plate 84, the spiral shape of the catalytic spiral plate 84 is the same as that of the spiral rolling plate 7, and the catalytic spiral plate 84 is nested in the air inlet channel 3 and/or the exhaust channel 4. The length of the catalytic spiral plate 84 is smaller than that of the spiral coil plate 7, and the catalytic spiral plate is arranged in a catalytic area at the spiral center of the spiral coil plate 7.
The intake passage 3 is adjacent to the exhaust passage 4. Be provided with the access hole on the side cap 5, the access hole, the size of access hole covers the catalysis district, installs access cover 6 on the access hole.
The spiral coil plate 7 is compact in structure, the spiral channel surrounds layer by layer, the spiral coil plate 7 and the heat exchanger which is excellent in structure and provides a catalytic reaction place are small in overall wind resistance, heat dissipation to the external environment is reduced to the maximum extent, enough contact area can be provided for catalytic reaction on the premise that the volume of the reactor is kept, the catalytic reaction is directly carried out on the side wall of the spiral channel, and the wind resistance is small.
The heat exchange structure formed by the mutually nested spiral channels can increase the temperature of the feed gas by utilizing tail gas most efficiently, the flow directions of air flows in the air inlet channel 3 and the air outlet channel 4 are opposite in mass transfer and belong to countercurrent contact, the air inlet channel 3 continuously recovers heat and returns the heat to the catalytic reaction area positioned in the center of the spiral rolling plate 7, but the air flows belong to 'concurrent' contact in heat transfer, and the waste gas after catalytic oxidation is firstly contacted with the feed gas with the highest temperature for heat exchange, so that the temperature reduction range is minimum, thereby ensuring that the high-temperature area is positioned in the spiral central area and the temperature is lower towards the outer layer. The structure ensures that the heat released by the catalytic oxidation reaction can be fully utilized in the catalytic reaction area, so that the temperature of the catalytic center can be stably kept at a higher level, thereby effectively ensuring the continuous operation of the catalytic reaction and realizing the self-heating catalytic oxidation.
The number of the spiral channels is changed along with the spiral rolling plate 7, a plurality of air inlet channels 3 or air outlet channels 4 can be arranged according to requirements, and the number of the air inlet channels 3 and the number of the air outlet channels 4 can be unequal.
The intake passage 3 is adjacent to the exhaust passage 4. In the scheme, the scheme that the air inlet channel 3 and the exhaust channel 4 are arranged adjacently is preferred, so that the raw material gas and the waste gas can directly exchange heat. However, in some applications, a special purpose channel may be disposed between the inlet channel 3 and the outlet channel 4, for example, the raw material gas and air may generate side reaction in non-catalytic environment, and an air channel may be additionally disposed to allow the raw material gas and air to contact in the catalytic reaction area.
The catalyst is arranged on the spiral rolling plate 7 and is positioned at the center of the spiral, the side cover 5 is provided with an access hole, and the catalytic carrier can be taken out from the access hole. For some use occasions where the catalyst needs to be replaced and maintained frequently, the replacement and maintenance of the catalyst are convenient.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a roll up board-like self-heating catalytic oxidation ware, includes reactor body, air inlet and gas vent, its characterized in that: the reactor body is composed of at least two spiral rolling plates, a side cover is arranged at the end part of each spiral rolling plate on the reactor body, at least two spiral rolling plates are nested with each other to form at least two layers of adjacent spiral channels, at least one layer of spiral channel is communicated with an air inlet to form an air inlet channel, at least one layer of spiral channel is communicated with an air outlet to form an air outlet channel, a spiral central area of each spiral rolling plate is a catalytic area, and catalytic carriers loaded with catalysts are arranged in the air inlet channel and/or the air outlet channel of the catalytic area.
2. The rolled sheet autothermal catalytic oxidizer of claim 1, wherein: the catalytic carrier is one or more of a ceramic ball, a ceramic ring and a honeycomb carrier.
3. The rolled sheet autothermal catalytic oxidizer of claim 1, wherein: the catalytic carrier is a catalytic spiral plate, the spiral shape of the catalytic spiral plate is the same as that of the spiral rolling plate, and the catalytic spiral plate is nested in the air inlet channel and/or the exhaust channel.
4. The rolled sheet autothermal catalytic oxidizer of claim 1, wherein: the intake passage is adjacent to the exhaust passage.
5. The rolled sheet autothermal catalytic oxidizer of claim 1, wherein: be provided with the access hole on the side cap, the access hole, the size of access hole covers the catalysis district, installs the access cover on the access hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023052347.0U CN214131070U (en) | 2020-12-17 | 2020-12-17 | Coiled plate type self-heating catalytic oxidizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023052347.0U CN214131070U (en) | 2020-12-17 | 2020-12-17 | Coiled plate type self-heating catalytic oxidizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214131070U true CN214131070U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023052347.0U Active CN214131070U (en) | 2020-12-17 | 2020-12-17 | Coiled plate type self-heating catalytic oxidizer |
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| Country | Link |
|---|---|
| CN (1) | CN214131070U (en) |
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2020
- 2020-12-17 CN CN202023052347.0U patent/CN214131070U/en active Active
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