Reaction kettle for multi-component alloy catalyst of fuel cell

Abstract

The present invention relates to the technical field of mixing containers, and discloses a reaction kettle for a fuel cell multi-component alloy catalyst, the reaction kettle comprises a kettle body, the kettle body is provided with a feed pipe and a discharge pipe, and the kettle body is further internally provided with a stirring assembly, a gas inlet assembly and a pneumatic auxiliary assembly, the stirring assembly comprises a stirring shaft, a spiral stirring blade fixedly installed on the stirring shaft and a crushing net for crushing fluid masses, the spiral stirring blade is driven by the stirring shaft to rotate, mixing of different solutions is accelerated, the large fluid masses or vortexes can be crushed in cooperation with the crushing net, stirring is more uniform and efficient, and the stirring efficiency is improved. Through the cooperation of the air inlet assembly and the air inlet pipe, the pressure in the kettle body can be conveniently adjusted, meanwhile, the effect of auxiliary stirring can be achieved, airflow in the air inlet pipe can drive the spiral impeller to rotate and move downwards, mixing of a powder additive and a solution is promoted, and the powder additive is prevented from floating on the liquid level.

Description

Technical Field

[0001] The invention relates to the field of mixing containers, in particular to a reaction kettle for a multi-element alloy catalyst of a fuel cell. Background Art

[0002] Fuel cells are energy conversion devices that convert chemical energy into electrical energy through electrochemical reactions. Since the electrochemical reaction on the electrode is relatively slow, a catalyst is needed to accelerate the reaction. In the preparation process of multi-component alloy catalysts, a reactor is needed as a reaction vessel when preparing multi-component alloy catalysts by coprecipitation method and sol-gel method.

[0003] A Chinese invention patent with announcement number CN202210482023.5 discloses an ultra-gravity reactor and preparation method for preparing platinum-based catalysts. The ultra-gravity principle is used to enhance the mixing of precursor solutions, improve the temperature uniformity and concentration uniformity during the reaction process, and thus improve the consistency of catalyst mass production.

[0004] Regarding the above-mentioned related technologies, the inventor believes that the following defects exist: First, the positions of the stirring paddle and the cutting net in the reactor are unreasonable. The stirring paddle only has a stirring function and cannot make the solution in the reactor flow to the crushing net, which limits the function of the crushing net to crush large fluid groups. Secondly, during the reaction of the multi-element alloy catalyst, it is often necessary to add powder additives or carrier powders. The powder structure easily floats on the liquid surface, and the above-mentioned equipment has not made improvements to accelerate the mixing of powder and solution. The applicant believes that there is room for improvement in the prior art. The applicant proposes a reactor for multi-element alloy catalysts for fuel cells. Summary of the invention

[0005] In order to solve the technical problems raised in the background technology, the present invention provides a reaction kettle for a multi-element alloy catalyst of a fuel cell.

[0006] The present invention is implemented by the following technical scheme: A reaction kettle for a multi-element alloy catalyst of a fuel cell, comprising a kettle body, a feed pipe and a discharge pipe are arranged on the kettle body, and the kettle body is also provided with: A stirring assembly, the stirring assembly comprising a stirring shaft, a spiral stirring blade fixedly mounted on the stirring shaft, and a crushing net for crushing the fluid mass; An air inlet pipe, the air inlet pipe is installed on the inner wall of the kettle body, an air inlet assembly connected to the stirring shaft is provided at the upper end of the kettle body, and the upper end of the air inlet pipe is connected to the air inlet assembly; A pneumatic auxiliary component is movably installed in the air inlet pipe. The pneumatic stirring component includes a spiral impeller. The airflow in the air inlet pipe drives the spiral impeller to rotate, and the spiral impeller is located above the feed pipe.

[0007] Through the above technical solution, firstly, when the motor drives the spiral stirring blade to rotate, the material in the kettle can be stirred, and the large fluid group or vortex can be broken with the crushing net to make the stirring more uniform and efficient, and improve the overall stirring effect. The air intake pipe can be combined with the air intake assembly to fill the kettle with gas, which can adjust the pressure in the kettle and assist the stirring at the same time. At the same time, the airflow in the air intake pipe can drive the spiral impeller to rotate. When the spiral impeller rotates, it can prevent the powder from floating on the liquid surface. Promote the mixing of powder materials.

[0008] As a further improvement of the above scheme, the stirring assembly also includes a motor, a support frame is fixedly connected to the upper end of the kettle body, the motor is installed on the upper end of the support frame, the motor is connected to one end of the stirring shaft, and the crushing net and spiral stirring blades are each provided with two groups, and are installed at intervals up and down.

[0009] Through the above technical solution, the crushing net made of metal wire can break up large fluid clusters or vortices, making the stirring more uniform and efficient, and improving the overall stirring effect.

[0010] As a further improvement of the above scheme, a connecting plate is fixedly connected to the top of the kettle body, and the stirring shaft passes through the connecting plate. At the same time, a through hole is opened on the connecting plate, and a one-way air inlet valve is installed in the through hole.

[0011] As a further improvement of the above solution, the air intake assembly further includes: A cylinder body, the cylinder body is installed above the connecting plate, a plunger is movably installed in the cylinder body, a sliding shoe is installed on the top of the plunger, and an air inlet hole is opened on the side of the cylinder body, and a one-way air inlet valve 2 is installed in the hole; A swash plate, wherein the swash plate is fixedly connected to the stirring shaft, and the sliding shoe is movably connected to the swash plate; An outer shell is sleeved on the outside of the cylinder body and the connecting plate, a through hole is opened at a position corresponding to the air inlet hole on the side of the cylinder body, and the outer shell is connected to the kettle body.

[0012] As a further improvement of the above scheme, a detachable protective sleeve is also provided on the outer side of the outer shell, an air inlet is provided at one end of the protective sleeve, and an inner connecting pipe corresponding to the number of one-way air inlet valves is provided on the inner wall of the protective sleeve, and one end of the inner connecting pipe can be inserted into the air inlet hole on the side of the cylinder body.

[0013] Through the above technical solution, the air inlet component can fill the kettle with gas, adjust the pressure in the kettle and assist in stirring. The protective sleeve can be used to help fill the gas (such as inert gas).

[0014] As a further improvement of the above solution, the pneumatic auxiliary component includes: The piston plate is defined as the air inlet pipe close to the feed pipe as air inlet pipe one, and the other as air inlet pipe two. The air inlet pipe one is movably provided with a piston plate, and a movable rod is rotatably installed in the middle of the piston plate. The spiral impeller includes an upper impeller and a lower impeller, and the upper impeller and the lower impeller are symmetrically installed on the movable rod. The upper impeller is arranged inside the air inlet pipe one, and the lower impeller is located outside the air inlet pipe one. A return spring is provided, wherein a support plate is fixedly connected to a bottom of the air intake pipe, the movable rod passes through the support plate, and a return spring is sleeved on the outer side of the movable rod located between the support plate and the piston plate.

[0015] As a further improvement of the above solution, a pressure relief hole is provided on the side of the intake pipe 1. In an initial state, the pressure relief hole is located below the piston plate. Meanwhile, through holes arranged vertically are provided on the intake pipe 2.

[0016] Through the above technical solution, the pneumatic auxiliary component can use the airflow in the air inlet pipe to drive the spiral impeller to rotate and move downward. When adding powder additives, the spiral impeller can prevent the powder additives from floating on the liquid surface.

[0017] As a further improvement of the above solution, an arc-shaped collecting groove is provided at the bottom edge of the kettle body, and the lower end port of the second air inlet pipe is located above the collecting groove.

[0018] As a further improvement of the above solution, an oil bath heating layer is fixedly provided on the outer wall of the kettle body.

[0019] As a further improvement of the above solution, a pressure relief valve is installed on the kettle body.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the spiral stirring blade to rotate through the stirring shaft to accelerate the mixing of different solutions. The solution makes a spiral motion along the surface of the spiral stirring blade. The large fluid group or vortex can be broken up with the broken net, thereby improving the stirring effect and promoting the full mixing and reaction between the materials.

[0021] 2. The present invention facilitates the adjustment of the pressure in the kettle through the cooperation of the air intake assembly and the air intake pipe, and can also play a role in auxiliary stirring. The airflow in the air intake pipe can drive the spiral impeller to rotate and move downward, promote the mixing of the powder additive and the solution, and prevent the powder additive from floating on the liquid surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2This is a cross-sectional view of the overall structure of Embodiment 1 of the present invention; Figure 3 This is a partial structural schematic diagram of a stirring component according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection relationship between the air intake assembly and the connecting plate from a first viewing angle according to an embodiment of the present invention; Figure 5 A schematic diagram of the connection relationship between the air intake assembly and the connecting plate from a second viewing angle according to the first embodiment of the present invention; Figure 6 This is an enlarged schematic diagram of a protective sleeve according to a first embodiment of the present invention; Figure 7 Schematic diagram of the connection relationship between the pneumatic auxiliary component and the air intake pipe according to the second embodiment of the present invention.

[0023] Explanation of main symbols: 1. kettle body; 2. feed pipe; 3. discharge pipe; 4. stirring assembly; 41. stirring shaft; 42. motor; 43. spiral stirring blade; 44. crushing net; 5. support frame; 6. air inlet pipe; 61. air inlet pipe 1; 62. air inlet pipe 2; 7. connecting plate; 71. one-way air inlet valve 1; 8. air inlet assembly; 81. cylinder body; 82. plunger; 83. one-way air inlet valve 2; 84. inclined plate; 85. sliding shoe; 86. outer shell; 9. Protective sleeve; 91. Air inlet; 92. Internal connecting pipe; 10. Pneumatic auxiliary component; 101. Spiral impeller; 1011. Upper impeller; 1012. Lower impeller; 102. Piston plate; 103. Movable rod; 104. Return spring; 105. Support plate; 106. Pressure relief hole; 11. Collecting tank; 12. Oil bath heating layer; 13. Pressure relief valve. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Embodiment 1: Please combine Figure 1-Figure 3 The present embodiment is a reactor for a fuel cell multi-element alloy catalyst, comprising a reactor body 1, a feed pipe 2 is arranged on the side of the reactor body 1, and a discharge pipe 3 is opened at the bottom. Corresponding valves are arranged on the discharge pipe 3 and the feed pipe 2.

[0026] In order to stir and mix the solution in the kettle body 1, a stirring assembly 4 is provided. Specifically, the stirring assembly 4 includes a stirring shaft 41, a spiral stirring blade 43 and a crushing net 44. The spiral stirring blade 43 and the crushing net 44 are both fixedly connected to the stirring shaft 41, and two groups of spiral stirring blades 43 and crushing nets 44 are provided, and the two groups of spiral stirring blades 43 and crushing nets 44 are distributed at intervals.

[0027] When the stirring shaft 41 drives the spiral stirring blade 43 to rotate, it can stir the solution in the kettle body 1, accelerate the mixing of different solutions, and the solution moves in a spiral along the surface of the blade under the action of the spiral stirring blade 43, generating a strong axial conveying capacity and circumferential stirring effect. This flow mode can make the solution fully mixed and transfer mass over a longer path.

[0028] When the solution rises along the spiral stirring blade 43, it will contact the crushing net 44, which is made of metal wire and can crush and disperse the large fluid groups or vortices formed during the stirring process, making the stirring more uniform and efficient. Different solution materials are divided and mixed more finely, so that the effect of the spiral stirring blade 43 can be better transmitted to every corner of the reactor, improving the overall stirring effect and promoting full mixing and reaction between materials.

[0029] Please combine Figure 4-Figure 6 Because the alloy catalysts may be different, it is usually necessary to control the temperature and pressure in the reactor. Therefore, an oil bath heating layer 12 ( Figure 2 In the figure, the material in the kettle body 1 is heated by oil bath heating. In addition, a thermometer, a pressure gauge for detecting the pressure in the kettle body 1, and a liquid level gauge for detecting the liquid level in the kettle body 1 are provided. (This is the prior art, not marked in the figure).

[0030] Several air inlet pipes 6 are also provided in the kettle body 1, in order to fill the kettle body 1 with gas through the air inlet pipes 6. Therefore, a connecting plate 7 and an air inlet assembly 8 are also provided on the top of the kettle body 1. Specifically, the connecting plate 7 is fixedly connected to the top of the kettle body 1, and a through hole corresponding to the air inlet pipe 6 is opened on the connecting plate 7, and a one-way air inlet valve 71 is installed in the through hole.

[0031] The air intake assembly 8 includes a cylinder body 81, which is mounted on the top of the connecting plate 7, and a plunger 82 is movably mounted in the cylinder body 81. The top end of the plunger 82 extends out of the cylinder body 81 and is mounted with a sliding shoe 85. In addition, air intake holes (not marked in the figure) corresponding to the number of the plungers 82 are opened on the side of the cylinder body 81, and a one-way air intake valve 83 is installed in the air intake hole. The air intake assembly 8 also includes a swash plate 84, which is fixedly connected to the stirring shaft 41, and a sliding shoe 85 is slidably mounted on the swash plate 84.

[0032] When the stirring shaft 41 drives the swash plate 84 to rotate together, the swash plate 84 drives the plunger 82 to move up and down in the cylinder body 81 through the sliding shoe 85. When the plunger 82 moves upward, the one-way air intake valve 2 83 opens to inhale gas; when the plunger 82 moves downward, the one-way air intake valve 2 83 closes, the one-way air intake valve 1 71 opens, and the gas enters the air intake pipe 6. Then, the gas enters the kettle body 1 through the air intake pipe 6.

[0033] An outer shell 86 is also provided outside the cylinder body 81 and the swash plate 84, and the outer shell 86 is used to protect the internal cylinder body 81 and the swash plate 84. The outer shell 86 is fixedly connected to the connecting plate 7. Through holes are provided at positions corresponding to the air inlet holes on the outer shell 86, which will not affect the air intake function of the air inlet holes. In actual use, a filter screen can be added to the air inlet hole to prevent dust and other impurities from entering the kettle body 1.

[0034] It should be noted that there are two types of air inlet pipes 6, the air inlet pipe 6 close to the feed pipe 2 is defined as air inlet pipe 1 61, and the other is air inlet pipe 2 62. Air inlet pipe 2 62 goes deep into the kettle body 1, and air inlet pipe 2 62 is provided with through holes arranged at equal intervals from top to bottom.

[0035] When the stirring shaft 41 drives the stirring assembly 4 to rotate and stir the materials, gas will be filled into the kettle body 1 through the cooperation of the inclined plate 84 and the air inlet pipe 6 and other structures. When the airflow enters the kettle body 1 through the air inlet pipe 6, on the one hand, the pressure in the kettle body 1 can be adjusted. On the other hand, since the lower end of the above-mentioned air inlet pipe 2 62 can extend below the liquid surface, and there are holes on the wall of the air inlet pipe 2 62, the gas will rise in the solution in the form of bubbles. During the rising process, the bubbles will occupy the space in the solution and promote the flow of the surrounding solution, thereby generating local liquid flow and mixing, which has a similar effect to stirring. In addition, a pressure relief valve 13 is also installed on the kettle body 1 to cooperate in adjusting the pressure in the kettle body 1.

[0036] At the same time, the bottom edge of the kettle body 1 is provided with an arc-shaped concave collecting tank 11, and the bottom of the second air inlet pipe 62 is located above the collecting tank 11. Therefore, if solid particles are deposited at the bottom of the appendage, they will fall into the collecting tank 11 along the inclined bottom structure, and when the airflow at the bottom of the second air inlet pipe 62 blows toward the collecting tank 11, the deposits can be blown up to accelerate fusion, thereby playing the role of preventing sedimentation.

[0037] Combined with the stirring assembly 4, the upper end of the stirring shaft 41 passes through the connecting plate 7, the cylinder 81 and the outer shell 86. For easy installation, a support frame 5 is fixedly connected to the top of the appendage, and a motor 42 is installed on the top of the support frame 5, and the motor 42 is connected to the stirring shaft 41.

[0038] In addition, the air inlet assembly 8 directly fills air into the kettle body 1, but some reactants or products in the reaction system are very sensitive to oxygen and are prone to side reactions or oxidation and deterioration, so air (oxygen) cannot be filled in. Therefore, a detachable protective sleeve 9 is provided.

[0039] Specifically, the protective sleeve 9 is supported by a flexible material, and an air inlet 91 is provided at one end. The inner wall of the protective sleeve 9 is provided with internal connecting pipes 92 corresponding to the number of the one-way air inlet valves 83. The internal connecting pipe 92 is a hose and can be inserted into the air inlet hole on the side of the cylinder body 81. When in use, the air inlet 91 can be connected to an inert gas or a gas source that does not react with the reactants. Similarly, the kettle body 1 can be filled with gas.

[0040] Embodiment 2: Please combine Figure 4 and Figure 7 When the multi-element alloy catalyst reacts in the kettle body 1, it may be necessary to add some auxiliary powder or carrier powder. Since the body is a solution, the auxiliary powder and carrier powder may float on the liquid surface when added. This will reduce their effect. In order to avoid this situation, a pneumatic auxiliary component 10 is also provided.

[0041] Specifically, the above embodiment 1 illustrates that the air inlet pipe 6 close to the feed pipe 2 is defined as the air inlet pipe 1 61 , which is shorter and has its bottom located above the feed pipe 2 (where it is connected to the kettle body 1 ). The pneumatic auxiliary component 10 is installed on the air inlet pipe 1 61 .

[0042] Specifically, first, a support plate 105 is fixedly connected to the port of the air inlet pipe 161, and a movable rod 103 is movably connected to the support plate 105. The movable rod 103 penetrates the support plate 105, and a return spring 104 is sleeved on the outer side of the movable rod 103 located above the support plate 105. In addition, the starting auxiliary component also includes a spiral impeller 101, wherein the spiral impeller 101 is divided into an upper impeller 1011 and a lower impeller 1012. The upper and lower impellers 1012 have the same structure and are symmetrically installed at both ends of the movable rod 103.

[0043] That is, the upper impeller 1011 is located inside the air inlet pipe 1 61, and the lower impeller 1012 is located outside the air inlet pipe 1 61. A piston plate 102 is also installed on the movable rod 103 and below the upper impeller 1011. The piston plate 102 is rotatably connected to the movable rod 103.

[0044] When the airflow passes through the air inlet pipe 161 and blows toward the upper impeller 1011, due to the spiral structure of the upper impeller 1011, which is small at the top and large at the bottom, the airflow flows along the spiral structure and drives the upper impeller 1011 to rotate. The upper impeller 1011 drives the lower impeller 1012 to rotate together through the movable rod 103. In addition, when the airflow blows toward the piston plate 102, it blows the piston plate 102 downward. That is, at this time, the lower impeller 1012 rotates and moves downward.

[0045] When it moves downward, it can enter below the liquid surface. The spiral structure with a larger top and a smaller bottom can also press part of the powder below the liquid surface. When it rotates, it can play a stirring role to promote the mixing of the powder and the solution in the kettle body 1.

[0046] A pressure relief hole 106 is provided on the side of the air inlet pipe 1 61. In the initial state, the pressure relief hole 106 is located below the piston plate 102. When the piston plate 102, the spiral impeller 101 and the movable rod 103 move downward, the return spring 104 is compressed and deformed. When the piston plate 102 moves to the position of the pressure relief hole 106, the air flow in the air inlet pipe 1 61 flows out through the pressure relief hole 106. At this time, under the action of the return spring 104, the piston plate 102 and the spiral impeller 101 are reset.

[0047] Because the airflow is pressed in when the plunger 82 of the first embodiment moves downward, the corresponding spiral impeller 101 moves downward at this time. When the plunger 82 moves upward, the spiral impeller 101 and the piston plate 102 are reset.

[0048] The implementation principle of the reactor for fuel cell multi-element alloy catalyst in the present application is: (1): The solution in the kettle body 1 is heated by oil bath heating, and the stirring shaft 41 and the spiral stirring blade 43 are driven by the motor 42 to rotate, thereby accelerating the mixing of different solutions. Moreover, under the action of the spiral stirring blade 43, the solution makes a spiral motion along the surface of the blade, so that the solution can be fully mixed and mass transferred on a longer path. The crushing net 44 made of metal wire can crush large fluid groups or vortices, making the stirring more uniform and efficient, improving the overall stirring effect, and promoting the full mixing and reaction between materials.

[0049] (2): When the stirring shaft 41 rotates, the kettle body 1 can be filled with gas through the cooperation of the inlet component 8 such as the inclined plate 84, and the pressure in the kettle body 1 can be adjusted. In addition, the bubbles will occupy the space in the solution during the rising process, and promote the flow of the surrounding solution, thereby generating local liquid flow and mixing, which has a similar effect to stirring.

[0050] (3): The airflow filled into the air inlet pipe 6 through the air inlet component 8 drives the spiral impeller 101 in the pneumatic auxiliary component 10 to rotate and move downward. When the lower impeller 1012 extends below the liquid surface, the auxiliary powder can be pressed into the solution, and it can also play a stirring role during rotation, thereby promoting mixing and preventing the powder from floating on the liquid surface.

[0051] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A reactor for a fuel cell multi-element alloy catalyst, comprising a reactor body, wherein a feed pipe and a discharge pipe are arranged on the reactor body, wherein: The kettle body is also provided with: A stirring assembly, the stirring assembly comprising a stirring shaft, a spiral stirring blade fixedly mounted on the stirring shaft, and a crushing net for crushing the fluid mass; An air inlet pipe, the air inlet pipe is installed on the inner wall of the kettle body, an air inlet assembly connected to the stirring shaft is provided at the upper end of the kettle body, and the upper end of the air inlet pipe is connected to the air inlet assembly; A pneumatic auxiliary component is movably installed in the air inlet pipe. The pneumatic stirring component includes a spiral impeller. The airflow in the air inlet pipe drives the spiral impeller to rotate and move downward at the same time, and the spiral impeller is located above the feed pipe.

2. The reactor for a fuel cell multi-element alloy catalyst according to claim 1, characterized in that: The stirring assembly also includes a motor. The upper end of the kettle body is fixedly connected to a support frame. The motor is installed on the upper end of the support frame. The motor is connected to one end of the stirring shaft. The crushing net and spiral stirring blades are each provided with two groups and are installed at intervals up and down.

3. The reactor for a fuel cell multi-element alloy catalyst according to claim 1, characterized in that: A connecting plate is fixedly connected to the top of the kettle body, and the stirring shaft passes through the connecting plate. A through hole is provided on the connecting plate, and a one-way air inlet valve is installed in the through hole.

4. The reactor for a fuel cell multi-element alloy catalyst according to claim 3, characterized in that: The air intake assembly also includes: A cylinder body, the cylinder body is installed above the connecting plate, a plunger is movably installed in the cylinder body, a sliding shoe is installed on the top of the plunger, and an air inlet hole is opened on the side of the cylinder body, and a one-way air inlet valve 2 is installed in the hole; A swash plate, wherein the swash plate is fixedly connected to the stirring shaft, and the sliding shoe is movably connected to the swash plate; An outer shell is sleeved on the outside of the cylinder body and the connecting plate, a through hole is opened at a position corresponding to the air inlet hole on the side of the cylinder body, and the outer shell is connected to the kettle body.

5. The reactor for a fuel cell multi-element alloy catalyst according to claim 4, characterized in that: The outer side of the outer shell is also provided with a detachable protective sleeve, one end of which is provided with an air inlet, and the inner wall of the protective sleeve is provided with internal connecting pipes corresponding to the number of one-way air inlet valves, one end of which is inserted into the air inlet hole on the side of the cylinder body.

6. The reactor for a fuel cell multi-element alloy catalyst according to claim 1, characterized in that: The pneumatic auxiliary component comprises: The piston plate is defined as the air inlet pipe close to the feed pipe as air inlet pipe one, and the other as air inlet pipe two. The air inlet pipe one is movably provided with a piston plate, and a movable rod is rotatably installed in the middle of the piston plate. The spiral impeller includes an upper impeller and a lower impeller, and the upper impeller and the lower impeller are symmetrically installed on the movable rod. The upper impeller is arranged inside the air inlet pipe one, and the lower impeller is located outside the air inlet pipe one. A return spring is provided, wherein a support plate is fixedly connected to a bottom of the air intake pipe, the movable rod passes through the support plate, and a return spring is sleeved on the outer side of the movable rod located between the support plate and the piston plate.

7. The reactor for a fuel cell multi-element alloy catalyst according to claim 6, characterized in that: A pressure relief hole is provided on the side of the first intake pipe. In an initial state, the pressure relief hole is located below the piston plate. Meanwhile, through holes arranged up and down are provided on the second intake pipe.

8. The reactor for a fuel cell multi-element alloy catalyst according to claim 6, characterized in that: An arc-shaped collecting groove is arranged at the bottom edge of the kettle body, and the lower end port of the second air inlet pipe is located above the collecting groove.

9. The reactor for a fuel cell multi-element alloy catalyst according to claim 1, characterized in that: The outer wall of the kettle body is also fixedly provided with an oil bath heating layer.

10. The reactor for a fuel cell multi-element alloy catalyst according to claim 1, characterized in that: A pressure relief valve is installed on the kettle body.

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