Ethylene catalytic oxidation device based on micro-channel reactor

Abstract

The utility model relates to the technical field of micro -channel reactor especially is concerned with a kind of ethylene catalytic oxidation device based on micro -channel reactor, and it drives equipment whole shaking by shaking device, and then improve the mixing efficiency between gas and liquid, increase reaction effect, provide power for shaking device by driving device, make ethylene gas and catalytic liquid react by reaction device, improve the practicability of device;Including shaking device, driving device and reaction device, driving device is installed on shaking device, and reaction device is installed on shaking device.

Description

Technical Field

[0001] This utility model relates to the technical field of microchannel reactors, and in particular to an ethylene catalytic oxidation device based on a microchannel reactor. Background Technology

[0002] A microchannel reactor is a chemical reaction device manufactured using microfabrication technology, with internal channel dimensions ranging from micrometers to millimeters. It is an important type of microreactor. The working principle of a microchannel reactor is based on fluid dynamics and mass and heat transfer characteristics at the microscale. In microchannels, the fluid flow is typically laminar, allowing mixing of reactants primarily to occur through diffusion. By precisely designing the geometry and dimensions of the microchannels, the mixing effect and mass and heat transfer rates can be optimized, thereby improving reaction efficiency and selectivity. Ethylene molecules contain carbon-carbon double bonds and exhibit reducing properties, while acidic potassium permanganate solution has strong oxidizing properties. Under acidic conditions, potassium permanganate can oxidize and break the carbon-carbon double bonds in ethylene, completely oxidizing ethylene to carbon dioxide.

[0003] The existing Chinese utility model patent with application number CN202421203482.6 relates to a continuous flow plate microchannel reactor, including a microchannel reactor body, heat exchange plate, reinforcing bolts, anti-deformation sealing components, intermediate bolts, threaded rings, sealing rings, pressure plates, and guide sliders, which can effectively resist the leakage risk caused by such deformation. At the same time, under internal pressure, it can also reduce deformation caused by pressure and improve the sealing effect of the microchannel reactor.

[0004] However, in actual use, the above-mentioned device has poor mixing effect between gas and liquid in the microchannel reactor, and incomplete gas reaction is likely to occur. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an ethylene catalytic oxidation device based on a microchannel reactor, which improves the mixing efficiency between gas and liquid and increases the reaction effect by driving the shaking device to shake the entire device, and the reaction device enables ethylene gas to react with catalytic liquid, thereby improving the practicality of the device.

[0006] This invention relates to an ethylene catalytic oxidation device based on a microchannel reactor; it includes a shaking device, a driving device, and a reaction device. The driving device is mounted on the shaking device, and the reaction device is mounted on the shaking device. The shaking device drives the entire device to shake, thereby improving the mixing efficiency between gas and liquid and increasing the reaction effect. The driving device provides power to the shaking device, and the reaction device enables the ethylene gas to react with the catalytic liquid, thus improving the practicality of the device.

[0007] Preferably, the shaking device includes a base plate, a plate microchannel reactor, a support rod, a sleeve, and springs. The plate microchannel reactor is located on the upper side of the base plate. The support rod is mounted on the middle of the upper end face of the base plate via a bracket. A sleeve is provided on the lower end face of the plate microchannel reactor, and the sleeve is fitted onto the support rod. A set of springs is respectively fitted on the front and rear parts of the support rod. By pushing the plate microchannel reactor to move laterally on the support rod, the pressure of the springs enables the plate microchannel reactor to shake rapidly, increasing the mixing effect of liquid and gas in the cavity and reducing the problem of insufficient contact reaction between the two due to the stratification of gas and liquid in the cavity caused by the difference in gas and liquid densities. Energy is stored in the process of pushing the plate microchannel reactor by the springs on both sides in conjunction with the external force, so that the plate microchannel reactor has the ability to shake rapidly, improving the mixing effect of liquid and gas and improving the practicality of the device.

[0008] Preferably, the driving device includes a first electric cylinder, a toggle plate, an arc-shaped baffle, and a limiting rod. An arc-shaped limiting groove is provided at the lower part of the support bracket for the rod. The first electric cylinder is installed at the rear of the arc-shaped limiting groove. The toggle plate is installed on the moving end of the first electric cylinder. An arc-shaped baffle is provided in the middle of the side of the sleeve. The toggle plate itself has a certain elasticity and can push the arc-shaped baffle by contacting it. A limiting rod is provided at the bottom of the arc-shaped limiting groove at the lower part of the support rod, and the limiting rod passes through the lower part of the toggle plate. The toggle is adjusted by the limiting rod. The lateral movement of the moving plate is assisted by limiting its movement to reduce its own swaying amplitude. By controlling the extension and retraction of the first electric cylinder, the moving plate pushes the arc-shaped baffle back and forth, thereby driving the plate microchannel reactor to move back and forth. In conjunction with the spring, energy is stored. When the moving plate pushes the arc-shaped baffle to a certain position, the elasticity of the moving plate causes it to disengage from the arc-shaped baffle. The spring then pushes the arc-shaped baffle to move quickly, improving the mixing efficiency of gas and liquid in the plate microchannel reactor and enhancing the stability and practicality of the device.

[0009] Preferably, the reaction device includes fluid channels, collecting chambers, turbulence protrusions, and solenoid valves. Multiple sets of collecting chambers are horizontally arranged within the plate-type microchannel reactor, connected by left and right fluid channels. The multiple sets of collecting chambers and fluid channels are distributed in a serpentine pattern within the plate-type microchannel reactor. Turbulence protrusions are provided within the collecting chambers. Gas and liquid inlets are respectively connected to the first set of collecting chambers through a set of fluid channels, and solenoid valves are installed on the inlets. The addition of gas and liquid is controlled by the solenoid valves. The fluid channels increase the mixing and reaction between gas and liquid. The turbulence protrusions in the collecting chambers obstruct and turbulent the liquid entering the collecting chambers, thereby remixing the gas and liquid clusters in the fluid channels, improving the practicality of the device.

[0010] Preferably, the device also includes a diaphragm, a second electric cylinder, and a mounting frame. A set of diaphragms is installed on the upper and lower end faces of the collecting chamber located at the corner of the channel within the plate microchannel reactor. Multiple sets of second electric cylinders are installed on the upper and lower end faces of the plate microchannel reactor corresponding to the diaphragm positions. The second electric cylinders are fixed to the plate microchannel reactor by the mounting frame and bolts, and the moving end of the second electric cylinder is connected to the corresponding diaphragm. By controlling the repeated extension and retraction of the second electric cylinder, the diaphragm completes the expansion and contraction process, thereby providing auxiliary power for the flow of gas and liquid in the plate microchannel reactor. This allows for secondary pressurization and acceleration of the liquid and gas at the corner of the pipeline within the bottom plate, improving the mixing efficiency between the liquid and gas and enhancing the practicality of the device.

[0011] Preferably, the device also includes a support frame, limiting rods, and limiting sleeves. A set of limiting rods is installed on the left and right sides of the upper end face of the base plate via the support frame. A set of limiting sleeves is provided on the left and right end faces of the plate microchannel reactor, and the two sets of limiting rods pass through the two sets of limiting sleeves respectively. The limiting rods and limiting sleeves limit the left and right swaying amplitude of the plate microchannel reactor body, preventing friction between the plate microchannel reactor and the base plate. At the same time, the plate microchannel reactor can rotate left and right at a certain angle during the forward and backward movement of the drive device and the swaying device, increasing the mixing efficiency between gas and liquid in the plate microchannel reactor and improving the practicality of the device.

[0012] Preferably, the device also includes a storage battery and a simple controller. The storage battery and the simple controller are installed on the upper surface of the plate microchannel reactor. The storage battery provides temporary power to multiple sets of second electric cylinders, and the simple controller controls the extension and retraction process of the second electric cylinders. This reduces the metal fatigue of the external circuitry as it moves with the plate microchannel reactor, thus improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the shaking device drives the whole equipment to shake, thereby improving the mixing efficiency between gas and liquid and increasing the reaction effect. The driving device provides power to the shaking device, and the reaction device enables ethylene gas to react with catalytic liquid, thus improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is a schematic diagram of the second isometric structure of this utility model; Figure 3 This is a first cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the second cross-sectional structure of this utility model; The following are labeled in the attached diagram: 1. Base plate; 2. Plate microchannel reactor; 3. Support rod; 4. Sleeve; 5. Spring; 6. First electric cylinder; 7. Actuating plate; 8. Arc-shaped baffle; 9. Limiting rod; 10. Fluid channel; 11. Collection chamber; 12. Turbulence protrusion; 13. Solenoid valve; 14. Diaphragm; 15. Second electric cylinder; 16. Mounting bracket; 17. Support frame; 18. Limiting rod; 19. Limiting sleeve; 20. Battery; 21. Simple controller. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0016] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the drive unit is mounted on the shaking device, and the reaction unit is mounted on the shaking device; First, connect the external liquid and gas pipelines to two sets of solenoid valves 13. Then, deliver the liquid and gas to the fluid channel 10 and the collection chamber 11 at their respective rates. Next, control the extension and retraction of the first electric cylinder 6 to drive the actuating plate 7 to push the arc-shaped baffle 8 back and forth, thereby driving the plate microchannel reactor 2 to move back and forth in coordination with the spring 5 to store energy. When the actuating plate 7 pushes the arc-shaped baffle 8 to a certain position, due to the elasticity of the actuating plate 7, the actuating plate 7 separates from the arc-shaped baffle 8, and the spring 5 pushes the arc-shaped baffle 8 to move quickly. At the same time, control multiple sets of second electric cylinders 15 to repeatedly extend and retract, driving the diaphragm 14 to complete the expansion and contraction process, thereby providing auxiliary power for the flow of gas and liquid in the plate microchannel reactor 2, so that the liquid and gas are pressurized and accelerated at the corner of the pipeline in the bottom plate 1, thereby increasing the mixing efficiency between the liquid and gas. The shaking device includes a base plate 1, a plate microchannel reactor 2, a support rod 3, a sleeve 4, and a spring 5. The plate microchannel reactor 2 is located on the upper side of the base plate 1. The support rod 3 is installed on the middle of the upper end face of the base plate 1 through a bracket. The sleeve 4 is provided on the lower end face of the plate microchannel reactor 2. The sleeve 4 is fitted onto the support rod 3. A set of springs 5 ​​is fitted on the front and rear parts of the support rod 3 respectively. The driving device includes a first electric cylinder 6, a toggle plate 7, an arc-shaped baffle 8, and a limiting light rod 9. An arc-shaped limiting groove is provided at the lower part of the bracket supporting the light rod 3. The first electric cylinder 6 is installed in the rear part of the arc-shaped limiting groove. The toggle plate 7 is installed on the moving end of the first electric cylinder 6. An arc-shaped baffle 8 is provided in the middle of the side of the sleeve 4. The toggle plate 7 has a certain elasticity and can push the arc-shaped baffle 8 when it contacts it. A limiting light rod 9 is provided at the bottom of the arc-shaped limiting groove at the lower part of the supporting light rod 3. The limiting light rod 9 passes through the lower part of the toggle plate 7. The reaction device includes a fluid channel 10, a collection chamber 11, a turbulence protrusion 12, and a solenoid valve 13. Multiple sets of collection chambers 11 are horizontally arranged inside the plate microchannel reactor 2. The collection chambers 11 are connected by two fluid channels 10 on the left and right sides. The multiple sets of collection chambers 11 and fluid channels 10 are distributed in a serpentine pattern in the plate microchannel reactor 2. Turbulence protrusions 12 are provided inside the collection chambers 11. The gas and liquid inlets are respectively connected to the first set of collection chambers 11 through a set of fluid channels 10. A solenoid valve 13 is installed on the inlet. It also includes a diaphragm 14, a second electric cylinder 15 and a mounting frame 16. A set of diaphragms 14 are respectively provided on the upper and lower end faces of the collecting chamber 11 located in the channel corner of the plate microchannel reactor 2. Multiple sets of second electric cylinders 15 are respectively provided on the upper and lower end faces of the plate microchannel reactor 2 corresponding to the positions of the diaphragms 14. The second electric cylinders 15 are fixed to the plate microchannel reactor 2 by bolts through the mounting frame 16. The moving end of the second electric cylinder 15 is connected to the diaphragm 14 at its corresponding position. It also includes a support frame 17, a limiting rod 18 and a limiting sleeve 19. A set of limiting rods 18 are installed on the left and right sides of the upper end face of the bottom plate 1 through the support frame 17. A set of limiting sleeves 19 are respectively provided on the left and right end faces of the plate microchannel reactor 2. The two sets of limiting rods 18 pass through the two sets of limiting sleeves 19 respectively. It also includes a storage battery 20 and a simple controller 21. The storage battery 20 and the simple controller 21 are installed on the upper surface of the plate microchannel reactor 2. The shaking device drives the whole device to shake, thereby improving the mixing efficiency between gas and liquid and increasing the reaction effect. The driving device provides power to the shaking device, and the reaction device enables ethylene gas to react with the catalytic liquid, which improves the practicality of the device.

[0017] like Figures 1 to 4As shown, this utility model discloses an ethylene catalytic oxidation device based on a microchannel reactor. During operation, external liquid and gas pipelines are first connected to two sets of solenoid valves 13. Then, the liquid and gas are transported to the fluid channel 10 and the collection chamber 11 at their respective rates. Next, the extension and retraction of the first electric cylinder 6 drives the actuating plate 7 to push the arc-shaped baffle 8 back and forth, thereby moving the plate-type microchannel reactor 2 back and forth in conjunction with the energy storage of the spring 5. When the actuating plate 7 pushes the arc-shaped baffle 8 to a certain position, due to the elasticity of the actuating plate 7, it disengages from the arc-shaped baffle 8. The spring 5 then pushes the arc-shaped baffle 8 to move rapidly. Simultaneously, multiple sets of second electric cylinders 15 are repeatedly extended and retracted, driving the diaphragm 14 to complete the expansion and contraction process. This provides auxiliary power for the flow of gas and liquid in the plate-type microchannel reactor 2, allowing the liquid and gas to undergo secondary pressurization and acceleration at the corners of the pipelines within the bottom plate 1, thereby increasing the mixing efficiency between the liquid and gas.

[0018] The battery 20, simple controller 21, solenoid valve 13, first electric cylinder 6 and second electric cylinder 15 of the ethylene catalytic oxidation device based on microchannel reactor of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An ethylene catalytic oxidation device based on a microchannel reactor; characterized in that, The device includes a shaking device, a driving device, and a reaction device. The driving device is mounted on the shaking device, and the reaction device is mounted on the shaking device. The shaking device includes a base plate (1), a plate microchannel reactor (2), a support rod (3), a sleeve (4), and a spring (5). The plate microchannel reactor (2) is located on the upper side of the base plate (1). The support rod (3) is mounted on the middle of the upper end face of the base plate (1) through a bracket. The sleeve (4) is provided on the lower end face of the plate microchannel reactor (2). The sleeve (4) is fitted on the support rod (3). A set of springs (5) is fitted on the front and rear parts of the support rod (3). The driving device includes a first electric cylinder (6), a toggle plate (7), an arc-shaped baffle (8), and a limiting rod (9). An arc-shaped limiting groove is provided at the lower part of the bracket of the support rod (3). The first electric cylinder (6) is installed in the rear part of the arc-shaped limiting groove. The toggle plate (7) is installed on the moving end of the first electric cylinder (6). The sleeve (4) An arc-shaped baffle (8) is provided in the middle of the side. The actuating plate (7) has a certain elasticity and can push the arc-shaped baffle (8) when it contacts the arc-shaped baffle (8). A limiting light rod (9) is provided at the bottom of the arc-shaped limiting groove at the lower part of the supporting light rod (3). The limiting light rod (9) passes through the lower part of the actuating plate (7). The reaction device includes a fluid channel (10), a collection chamber (11), a turbulence protrusion (12), and a solenoid valve (13). The plate microchannel reactor (2) Multiple sets of collecting chambers (11) are horizontally arranged inside the plate microchannel reactor (2). The collecting chambers (11) are connected by two fluid channels (10) on the left and right. The multiple sets of collecting chambers (11) and fluid channels (10) are distributed in a serpentine pattern in the plate microchannel reactor (2). Turbulent protrusions (12) are provided in the collecting chambers (11). The gas and liquid inlets are respectively connected to the first set of collecting chambers (11) through a set of fluid channels (10). A solenoid valve (13) is installed on the inlet.

2. The ethylene catalytic oxidation device based on a microchannel reactor as described in claim 1, characterized in that, It also includes a diaphragm (14), a second electric cylinder (15) and a mounting frame (16). A set of diaphragms (14) is respectively provided on the upper and lower end faces of the collecting chamber (11) located in the corner of the channel in the plate microchannel reactor (2). Multiple sets of second electric cylinders (15) are provided on the upper and lower end faces of the plate microchannel reactor (2) corresponding to the positions of the diaphragms (14). The second electric cylinders (15) are fixed to the plate microchannel reactor (2) by bolts through the mounting frame (16). The moving end of the second electric cylinder (15) is connected to the diaphragm (14) at its corresponding position.

3. The ethylene catalytic oxidation device based on a microchannel reactor as described in claim 2, characterized in that, It also includes a support frame (17), a limiting rod (18) and a limiting sleeve (19). A set of limiting rods (18) are installed on the left and right sides of the upper end face of the bottom plate (1) through the support frame (17). A set of limiting sleeves (19) are set on the left and right end faces of the plate microchannel reactor (2). The two sets of limiting rods (18) pass through the two sets of limiting sleeves (19) respectively.

4. The ethylene catalytic oxidation device based on a microchannel reactor as described in claim 3, characterized in that, It also includes a storage battery (20) and a simple controller (21). The storage battery (20) and the simple controller (21) are installed on the upper surface of the plate microchannel reactor (2).

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