Air-cooled CO preferential catalytic reactor
By designing an air-cooled CO priority catalytic reactor, using fan heat dissipation and series catalyst to fill the tube structure, the problem of insufficient practicality and stability of traditional reactors when removing CO in PEMFC hydrogen is solved, and efficient CO removal and The reactor stability is improved, meeting hydrogen purity requirements and reducing operating costs.
Patent Information
- Application Number
- CN202420910095.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Traditional catalytic oxidation reactors lack practicality and stability when removing CO in PEMFC hydrogen, which is difficult to meet the strict requirements of hydrogen purity, affecting the performance and stability of PEMFC.
An air-cooled CO priority catalytic reactor was designed, using a rectangular frame structure, using a fan as a heat dissipation power source, and the reaction efficiency and stability were improved by filling the tube and filter in series with a catalyst, and the temperature was monitored in real time by thermocouples to ensure the catalyst Run under optimal conditions.
It effectively improves the CO removal efficiency and reactor stability, meets the requirements of PEMFC for hydrogen purity, extends the service life of the catalyst, and reduces operating costs.
Smart Images
Figure CN222300684U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of catalytic reactors, in particular to an air-cooled CO priority catalytic reactor. Background Art
[0002] At present, proton exchange membrane fuel cells (PEMFCs) are being used in the fields of automobiles, distributed power generation, and mobile devices as an efficient and environmentally friendly energy conversion device. However, hydrogen, the main fuel of PEMFC, often contains trace amounts of carbon monoxide (CO) in practical applications, which not only reduces the performance of PEMFC but also damages its electrolyte membrane. Therefore, the development of a reactor that can effectively remove CO from hydrogen is of great practical significance for the commercial application of PEMFC.
[0003] Common methods for removing CO from PEMFC hydrogen include adsorption, membrane separation and catalytic oxidation. Among them, although catalytic oxidation can remove CO, the traditional reactor has deficiencies in practicality and stability, and it is difficult to meet the strict requirements of PEMFC for hydrogen purity. Therefore, the present invention proposes a novel reactor for preferential oxidation and removal of CO from PEMFC hydrogen, aiming to solve the above problems and further improve the performance and stability of PEMFC. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide an air-cooled CO priority catalytic reactor to solve the problem of CO removal.
[0005] The utility model solves the above-mentioned technical problem with the following technical solutions: an air-cooled CO priority catalytic reactor, comprising an upper end cover, a lower end cover, a fan, a side panel and a plurality of catalyst filling tubes, wherein the upper end cover, the lower end cover and the side panel constitute a rectangular frame structure, the side panel is detachably connected to the upper end cover and the lower end cover, the fan is detachably arranged on the side panel, the two ends of the plurality of catalyst filling tubes are respectively embedded in the upper end cover and the lower end cover, the ends of the upper end cover and the lower end cover in the extension direction are both provided with interfaces, and the upper end cover and the lower end cover are both provided with air joints.
[0006] Furthermore, the plurality of catalyst filling tubes are connected to form a series structure via a series joint, and each of the series joints is connected to the air joint.
[0007] Furthermore, the upper end cover and the lower end cover are both cavity structures, and the series connector is arranged inside the cavity structures of the upper end cover and the lower end cover.
[0008] Furthermore, the ends of the catalyst filling tubes are provided with filter screens.
[0009] Furthermore, the catalyst filling tube is a tubular structure, an embedded sink is provided at the end of the catalyst filling tube, the filter is embedded in the sink, a pressure ring is provided on the outside of the filter, and the pressure ring is used to press and fix the filter.
[0010] Furthermore, the upper end cover and the lower end cover are detachably connected via a long screw, a gasket set and a nut.
[0011] Furthermore, each of the catalyst filling tubes is provided with a thermocouple.
[0012] The utility model provides an air-cooled CO priority catalytic reactor, comprising an upper end cover, a lower end cover, a fan, a side panel and a plurality of catalyst filling tubes, wherein the upper end cover, the lower end cover and the side panel constitute a rectangular frame structure, the side panel is detachably connected to the upper end cover and the lower end cover, the fan is detachably arranged on the side panel, the two ends of the plurality of catalyst filling tubes are respectively embedded in the upper end cover and the lower end cover, the ends of the upper end cover and the lower end cover in the extension direction are both provided with interfaces, and the upper end cover and the lower end cover are both provided with air joints. In this way, the present scheme adopts a fan as a heat dissipation power source to dissipate the heat generated during the oxidation reaction of CO, and since interfaces are arranged on the upper end cover and the lower end cover, the interfaces can be used as hydrogen inlet or hydrogen outlet as needed, and the unused interfaces can be closed by plugs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of an air-cooled CO priority catalytic reactor of the utility model;
[0014] Figure 2 This is a schematic diagram of the fan side structure of an air-cooled CO preferential catalytic reactor of the utility model;
[0015] Figure 3 This is a schematic diagram of the catalyst filling tube structure of an air-cooled CO priority catalytic reactor of the utility model;
[0016] Figure 4 The utility model is a schematic diagram of the interior of an upper end cover of an air-cooled CO preferential catalytic reactor.
[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0018] 1. Upper end cover, 2. Lower end cover, 3. Side panel, 4. Catalyst filling tube, 5. Fan, 6. Hydrogen inlet, 7. Hydrogen outlet, 8. Plug, 9. Air connector, 10. Series connector, 11. Filter, 12. Press ring, 13. Long screw, 14. Gasket set, 15. Nut, 16. Thermocouple. DETAILED DESCRIPTION
[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "center", "inside", "outside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] like Figure 1-Figure 4 As shown, the utility model provides an air-cooled CO priority catalytic reactor, comprising an upper end cover 1, a lower end cover 2, a fan 5, a side panel 3 and a plurality of catalyst filling tubes 4, wherein the upper end cover 1, the lower end cover 2 and the side panel 3 constitute a rectangular frame structure, the side panel 3 is detachably connected to the upper end cover 1 and the lower end cover 2, the fan 5 is detachably arranged on the side panel 3, the two ends of the plurality of catalyst filling tubes 4 are respectively embedded in the upper end cover 1 and the lower end cover 2, the ends of the upper end cover 1 and the lower end cover 2 in the extension direction are both provided with interfaces, and the upper end cover 1 and the lower end cover 2 are both provided with air joints 9. In this way, the present scheme adopts the fan 5 as a heat dissipation power source to dissipate the heat generated during the oxidation reaction of CO, and since interfaces are arranged on the upper end cover 1 and the lower end cover 2, the interfaces can be used as hydrogen inlet 6 or hydrogen outlet 7 as needed, and the unused interfaces can be closed by plugs 8.
[0023] The utility model air-cooled CO priority catalytic reactor, such as Figure 1-Figure 4As shown, on the basis of the technical solution described above, it can also be that: the multiple catalyst filling tubes 4 are connected to form a series structure through a series joint 10, and each of the series joints 10 is connected to the air joint 9. This improved design can further improve the efficiency of the catalytic reactor. By connecting multiple catalyst filling tubes 4 in series, the airflow can undergo a catalytic reaction when passing through each catalyst filling tube 4, thereby increasing the reaction time and efficiency. In addition, the design that each series joint 10 is connected to the air joint 9 can ensure that the air can evenly enter each catalyst filling tube 4, so that the airflow is more evenly distributed inside the catalyst filling tube 4, thereby improving the uniformity and stability of the catalytic reaction.
[0024] The utility model air-cooled CO priority catalytic reactor, such as Figure 1-Figure 4 As shown, on the basis of the technical solution described above, the upper end cover 1 and the lower end cover 2 are both cavity structures, and the series joint 10 is arranged inside the cavity structure of the upper end cover 1 and the lower end cover 2. In addition to the series joint 10, a plurality of support columns may be arranged inside the cavity structure of the upper end cover 1 and the lower end cover 2 for supporting and fixing the series joint 10. These support columns may be made of metal or plastic and have certain strength and stability, and can effectively ensure the stability and safety of the series joint 10 during the reaction process.
[0025] The utility model air-cooled CO priority catalytic reactor, such as Figure 1-Figure 4 As shown, on the basis of the technical solution described above, it can also be that: the ends of the catalyst filling tubes 4 are provided with filter screens 11. The design of such filter screens 11 can further improve the efficiency and reliability of the catalytic reactor. The filter screen 11 can effectively prevent impurities and particulate matter from entering the catalyst filling tube 4, prevent the catalyst from being contaminated and damaged, and thus extend the service life of the catalyst. In addition, the filter screen 11 can also improve the purity of the gas and reduce the airflow from carrying out the CO preferential reaction catalyst, which is particularly important for applications that require high-precision catalytic reactions, and can ensure the accuracy and stability of the reaction results.
[0026] The utility model air-cooled CO priority catalytic reactor, such as Figure 1-Figure 4As shown, on the basis of the technical solution described above, it can also be that: the catalyst filling tube 4 is a tubular structure, an embedded sink is provided at the end of the catalyst filling tube 4, the filter screen 11 is embedded in the sink, and a pressure ring 12 is provided on the outside of the filter screen 11, and the pressure ring 12 is used to press and fix the filter screen 11. The design of the embedded sink can make the filter screen 11 more firmly installed at the end of the catalyst filling tube 4, preventing the filter screen 11 from moving or falling off during the reaction process. At the same time, the setting of the pressure ring 12 further enhances the stability of the filter screen 11. By pressing and fixing, the filter screen 11 is more closely attached to the sink, effectively preventing the catalyst particles from entering the reaction gas through the gap outside the filter screen 11, thereby ensuring the efficient progress of the catalytic reaction.
[0027] The utility model air-cooled CO priority catalytic reactor, such as Figure 1-Figure 4 As shown, on the basis of the technical solution described above, it can also be that: the upper end cover 1 and the lower end cover 2 are detachably connected through a long screw 13, a gasket group 14 and a nut 15. In practical applications, in order to facilitate the maintenance of the equipment and the replacement of the catalyst, we design the upper end cover 1 and the lower end cover 2 to be detachably connected. Specifically, through the combination of the long screw 13, the gasket group 14 and the nut 15, the upper end cover 1 and the lower end cover 2 can be easily connected together, and can also be easily disassembled. In the selection of the long screw 13, we use a long screw 13 made of high-strength material to ensure that it has good corrosion resistance while bearing the internal pressure and weight of the reactor. The gasket group 14 is used to fill the gap between the upper end cover 1 and the lower end cover 2 to ensure the sealing performance of the connection. The nut 15 is used to fix the long screw 13 to ensure that the connection between the upper end cover 1 and the lower end cover 2 is firm and reliable.
[0028] The utility model air-cooled CO priority catalytic reactor, such as Figure 1-Figure 4 As shown, on the basis of the technical solution described above, each of the catalyst filling tubes 4 is provided with a thermocouple 16. This design allows us to accurately control the reaction temperature in each catalyst filling tube 4. The thermocouple 16 can transmit real-time temperature data to the control system, and the control system adjusts the cooling system of the reactor according to these data to ensure that each catalyst filling tube 4 operates within the optimal temperature range. This can not only improve the efficiency and stability of the catalytic reaction, but also extend the service life of the catalyst, reduce the frequency of catalyst replacement, and thus reduce operating costs.
[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An air-cooled CO preferential catalytic reactor, characterized in that: The invention comprises an upper end cover (1), a lower end cover (2), a fan (5), a side panel (3) and a plurality of catalyst filling tubes (4); the upper end cover (1), the lower end cover (2) and the side panel (3) form a rectangular frame structure; the side panel (3) is detachably connected to the upper end cover (1) and the lower end cover (2); the fan (5) is detachably arranged on the side panel (3); the two ends of the plurality of catalyst filling tubes (4) are respectively embedded in the upper end cover (1) and the lower end cover (2); the ends of the upper end cover (1) and the lower end cover (2) in the extension direction are both provided with interfaces; and the upper end cover (1) and the lower end cover (2) are both provided with air joints (9).
2. The air-cooled CO preferential catalytic reactor according to claim 1, characterized in that: The plurality of catalyst filling tubes (4) are connected via a series joint (10) to form a series structure, and each of the series joints (10) is connected to the air joint (9).
3. The air-cooled CO preferential catalytic reactor according to claim 2, characterized in that: The upper end cover (1) and the lower end cover (2) are both cavity structures, and the series connector (10) is arranged inside the cavity structures of the upper end cover (1) and the lower end cover (2).
4. The air-cooled CO preferential catalytic reactor according to claim 1, characterized in that: The ends of the catalyst filling tubes (4) are each provided with a filter screen (11).
5. The air-cooled CO preferential catalytic reactor according to claim 4, characterized in that: The catalyst filling tube (4) is a tubular structure. An embedded sink is provided at the end of the catalyst filling tube (4). The filter screen (11) is embedded in the sink. A pressure ring (12) is provided on the outside of the filter screen (11). The pressure ring (12) is used to press and fix the filter screen (11).
6. The air-cooled CO preferential catalytic reactor according to claim 1, characterized in that: The upper end cover (1) and the lower end cover (2) are detachably connected via a long screw (13), a gasket set (14) and a nut (15).
7. The air-cooled CO preferential catalytic reactor according to claim 1, characterized in that: Each of the catalyst filling tubes (4) is provided with a thermocouple (16).