A high-efficiency gas mixing reaction device for green methanol synthesis

Abstract

This application relates to the field of gas mixing reaction equipment, and in particular to a high-efficiency gas mixing reaction device for green methanol synthesis, including an inlet head and an outlet head. Multiple single tanks are arranged between the inlet head and the outlet head. Each single tank contains a main pipe and branch pipes, both ends of which are connected to the single tank via fixed plates. This device, through a series design of multiple single tanks, combined with the precise control of the main pipes and branch pipes using solenoid valves one and two, can flexibly adjust the flow path and velocity of the gas in different tanks, avoiding the problems of uneven velocity distribution and insufficient turbulence intensity in traditional single-tank structures. The combined application of mixing components can achieve "rapid dispersion" and "efficient fusion" of feed gases with different viscosities and flow velocities, reducing gas component segregation and providing a uniform feed gas environment for subsequent catalytic reactions, thereby improving the catalytic reaction efficiency of green methanol synthesis.

Description

Technical Field

[0001] This utility model relates to the technical field of gas mixing reaction equipment, specifically a high-efficiency gas mixing reaction device for green methanol synthesis. Background Technology

[0002] As the global energy structure transitions towards low-carbon and clean energy, green methanol, as an important renewable energy carrier and chemical raw material, has received widespread attention driven by the goal of carbon neutrality. Green methanol is typically synthesized by combining hydrogen generated from renewable energy sources with captured carbon dioxide under the action of a catalyst. Its production process has the dual value of carbon emission reduction and energy storage, and has broad application prospects in transportation fuels, power generation, and chemical synthesis.

[0003] A search revealed that the Chinese patent with publication number CN216856327U discloses a phthalic anhydride reaction gas mixing device. The key technical feature is that air can be blown by a blower, heated by a heating element, and then transported to a storage tank through an outlet pipe to be fully mixed with o-xylene. At the same time, negative ions generated by an ion generator can enter the storage tank with the hot air to eliminate static electricity and improve the safety of the phthalic anhydride reaction gas mixing device.

[0004] Currently, although gas mixing reactors used in green methanol synthesis have made some progress, they still have many limitations in practical applications. Traditional reactors mostly use single tanks or simple pipeline mixing structures. During the flow of raw gas, problems such as uneven flow velocity distribution and insufficient turbulence intensity can lead to insufficient mixing, resulting in gas component segregation in some areas, which affects the efficiency of subsequent catalytic reactions. Traditional mixing elements have limited mixing effects on gases of different viscosities and flow velocities, making it difficult to meet the dual requirements of "rapid dispersion" and "efficient fusion". Moreover, most components are fixed installations, and cleaning, replacement or upgrading require shutdown and disassembly, affecting the continuity of production. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the above-mentioned background technology, there are shortcomings and defects in the existing technology, such as insufficient mixing uniformity and single function of the mixed components.

[0006] This utility model discloses a high-efficiency gas mixing reaction device for green methanol synthesis, including an inlet head and an outlet head. Multiple single tanks are arranged between the inlet head and the outlet head. Each single tank has a main pipe and a branch pipe inside. Both ends of the main pipe and the branch pipe are connected to the single tank through a fixing plate. Switches are provided on the main pipe and the branch pipe. A sliding plate is provided between the main pipe and the single tank, and a mixing component is provided on the sliding plate.

[0007] Furthermore, there are three single tanks, namely Tank 1, Tank 2 and Tank 3. The single tanks are fixedly connected to each other, and the single tanks are fixedly connected to the discharge head and the feed head through flanges.

[0008] Furthermore, the switching components are configured as solenoid valve one and solenoid valve two, with solenoid valve one installed on the main pipe and solenoid valve two installed on the branch pipe, and a controller is provided on the feed head.

[0009] Furthermore, the mixing assembly includes a guide plate, a spiral blade, and a porous screen plate, which are sequentially installed on the corresponding main pipe.

[0010] Furthermore, the main pipe is provided with a sliding groove, the sliding plate is slidably disposed with the sliding groove, and the sliding plate is connected to the single tank body by fixing bolts.

[0011] Furthermore, the guide vanes are configured in a cross shape, and there are multiple guide vanes, with at least one guide vane.

[0012] Furthermore, at least two single tanks are provided, and at least one of the following is provided: the guide plate, the spiral blade, and the porous sieve plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model device, through a multi-tank series design, combined with the precise control of solenoid valves one and two in conjunction with the main pipe and branch pipes, can flexibly adjust the flow path and velocity of gas in different tanks, avoiding the problems of uneven velocity distribution and insufficient turbulence intensity in traditional single-tank structures; the combined application of mixing components can achieve "rapid dispersion" and "efficient fusion" for raw materials with different viscosities and flow velocities, reduce gas component segregation, provide a uniform raw material gas environment for subsequent catalytic reactions, thereby improving the catalytic reaction efficiency of green methanol synthesis.

[0015] 2. The sliding fit between the slide plate and the main pipe groove, as well as the fixed bolt connection structure between the slide plate and the single tank, of this utility model allow the mixing components to be easily disassembled and replaced according to actual production needs. At the same time, the single tank is connected by a flange, which facilitates the assembly, expansion, or disassembly maintenance of the device. Each component in the mixing component can be used individually or in combination, and the number of guide plates and the number of single tanks can be flexibly adjusted to adapt to the mixing needs under different working conditions. This avoids the problem of needing to stop and disassemble the device for maintenance due to the fixed installation of components in traditional devices, effectively ensuring the continuity of green methanol synthesis production. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0020] Figure 4 This utility model Figure 2 Front view.

[0021] In the diagram: 1. Feed head; 2. Discharge head; 3. Tank 1; 4. Tank 2; 5. Tank 3; 6. Main pipe; 7. Branch pipe; 8. Fixed plate; 9. Solenoid valve 1; 10. Solenoid valve 2; 11. Slide plate; 12. Slide groove; 13. Guide plate; 14. Spiral blade; 15. Perforated screen plate; 16. Flange; 17. Controller. Detailed Implementation

[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0023] Please see Figure 1 , Figure 2 As shown, the high-efficiency gas mixing reaction device for green methanol synthesis of this utility model includes an inlet head 1 and an outlet head 2. Multiple single tanks are arranged between the inlet head 1 and the outlet head 2. The outer wall of the single tank is added with a heat insulation layer to maintain the gas at a suitable reaction temperature and avoid temperature fluctuations affecting the mixing characteristics. There are three single tanks, namely tank 1 3, tank 2 4 and tank 3 5.

[0024] Please see Figure 1 , Figure 2As shown, the single tank is fixedly connected to the discharge head 2 and the inlet head 1 via flange 16. The flange 16 connection method supports quick disassembly and assembly, and the main pipe 6, branch pipe 7 and mixing components of each tank can be replaced independently, reducing maintenance costs. The single tank is equipped with a main pipe 6 and a branch pipe 7. The main pipe 6 and branch pipe 7 are made of corrosion-resistant alloy material to adapt to the chemical characteristics of the raw material gas in green methanol synthesis and avoid equipment damage caused by gas corrosion. The inner diameter of the main pipe 6 is larger than that of the branch pipe 7. The specific size can be adapted according to the volume of the single tank and the design flow rate, and the basic adjustment of flow distribution can be achieved through the difference in pipe diameter.

[0025] Please see Figure 2 , Figure 3 As shown, both ends of the main pipe 6 and the branch pipe 7 are connected to the single tank through the fixed plate 8. The connection surface between the fixed plate 8 and the single tank is equipped with a sealing gasket to ensure that there is no leakage of gas during the flow process and to improve the airtightness of the device. The main pipe 6 is equipped with a sliding groove 12, and the sliding plate 11 slides with the sliding groove 12. The sliding plate 11 is made of high-strength wear-resistant plate, and the sliding fit accuracy between it and the sliding groove 12 is controlled within the range of 0.1-0.5mm, which ensures smooth sliding and avoids gas leakage caused by excessive gap.

[0026] Please see Figure 2 , Figure 3 , Figure 4 As shown, the slide plate 11 is connected to the single tank by fixing bolts. The fixing bolts on the slide plate 11 are equipped with spring washers to maintain the stable installation of the mixing components even when the gas flows at high speed and vibrates. Switches are installed on both the main pipe 6 and the branch pipe 7. The switches are solenoid valve 9 and solenoid valve 10. Solenoid valve 9 is installed on the main pipe 6 and solenoid valve 10 is installed on the branch pipe 7. A controller 17 is installed on the feed head 1. The controller 17 has a built-in PLC control system. Flow sensors and pressure sensors are added at the inlet and outlet of the single tank and electrically connected to the controller 17 to monitor gas parameters in real time. When the flow fluctuation exceeds the preset value, the controller 17 automatically adjusts the opening and closing degree of the solenoid valve to ensure mixing stability.

[0027] Please see Figure 2 , Figure 4 As shown, a sliding plate 11 is provided between the main pipe 6 and the single tank. A mixing component is provided on the sliding plate 11. The mixing component includes a guide plate 13, a spiral blade 14, and a porous screen plate 15. The guide plate 13, the spiral blade 14, and the porous screen plate 15 are sequentially installed on the corresponding main pipe 6. At least two are provided in the single tank. At least one of the guide plate 13, the spiral blade 14, and the porous screen plate 15 is provided. The guide plate 13 is set in a cross shape. Multiple guide plates 13 are provided. At least one guide plate 13 is provided.

[0028] The implementation principle is as follows: In the green methanol synthesis reaction, the raw material gas first enters the device through the feed head 1; the raw material gas entering the device will flow sequentially through the tank 3, tank 4, and tank 5 connected by the flange 16, and finally be discharged through the discharge head 2, providing a fully mixed raw material gas for the subsequent catalytic reaction;

[0029] During the process of gas flowing through the single tank, the gas flow path and flow rate can be flexibly adjusted by the precise control of solenoid valve 9 on the main pipe 6 and solenoid valve 10 on the branch pipe 7 by the controller 17: if it is necessary to speed up the gas flow or reduce the residence time in the single tank, solenoid valve 9 can be opened and solenoid valve 10 can be closed, so that the gas mainly flows through the main pipe 6 quickly.

[0030] If it is necessary to extend the mixing reaction time of the gas in a single tank or adjust the flow distribution, the solenoid valve 210 can be opened to allow some or all of the gas to be diverted through the branch pipe 7 and then merged into the main pipe 6 at the rear end. The gas turbulence intensity is enhanced by the cooperation between the main pipe 6 and the branch pipe 7.

[0031] To address the viscosity and flow rate characteristics of different raw materials, the opening and closing degree of the solenoid valve can be adjusted by the controller 17 to achieve flow rate ratio control between the main pipe 6 and the branch pipe 7, thus avoiding the problem of uneven flow rate distribution in the traditional single-tank structure.

[0032] When the gas flows in the main pipe 6, it passes through the mixing components installed on the main pipe 6 in sequence to complete a multi-stage mixing process: First, it comes into contact with the cross-shaped guide plate 13. The guide plate 13 breaks the original flow inertia of the gas by dividing and guiding it, so that the gas is initially dispersed and forms turbulence, laying the foundation for subsequent mixing; The gas initially dispersed by the guide plate 13 then flows through the spiral blade 14. The gas forms a spiral rotation flow along the inner wall of the main pipe 6, which greatly increases the turbulence intensity of the gas and promotes forced convection and diffusion mixing between different component gases;

[0033] Finally, the gas passes through the porous sieve plate 15. As the gas passes through the small holes of the sieve plate, it is further cut and dispersed into fine airflows. The fine airflows re-converge behind the sieve plate, achieving uniform fusion of the components.

[0034] Through the series design of multiple single tanks, the gas can complete multiple rounds of mixing reaction in tank 3, tank 4, and tank 5 in sequence. Each round of mixing can be improved by adjusting the opening and closing state of the solenoid valve of the corresponding tank and the combination of mixing components, so as to gradually improve the mixing uniformity and avoid the gas components from agglomerating.

[0035] After loosening the fixing bolts between the slide plate 11 and the single tank, move the position of the slide plate 11 to adjust the installation position of the mixing component in the main pipe 6. Directly disassemble the slide plate 11 to replace the mixing component of different specifications. After the adjustment is completed, tighten the fixing bolts again. The flanges 16 between the single tanks also facilitate the addition or reduction of the number of tanks according to the production scale, ensuring that the equipment can maintain a high degree of production continuity during maintenance or adjustment.

[0036] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A high-efficiency gas mixing reaction device for green methanol synthesis, comprising a feed head (1) and a discharge head (2), characterized in that: Multiple single tanks are provided between the feed head (1) and the discharge head (2). Each single tank has a main pipe (6) and a branch pipe (7) inside. Both ends of the main pipe (6) and the branch pipe (7) are connected to the single tank through a fixed plate (8). Switches are provided on the main pipe (6) and the branch pipe (7). A sliding plate (11) is provided between the main pipe (6) and the single tank. A mixing component is provided on the sliding plate (11).

2. The high-efficiency gas mixing reaction apparatus for green methanol synthesis according to claim 1, characterized in that: The single tank is provided in three parts, namely tank one (3), tank two (4) and tank three (5). The single tanks are fixedly connected to each other and to the discharge head (2) and the feed head (1) by flanges (16).

3. The high-efficiency gas mixing reaction apparatus for green methanol synthesis according to claim 1, characterized in that: The switching components are configured as solenoid valve one (9) and solenoid valve two (10). Solenoid valve one (9) is installed on the main pipe (6), and solenoid valve two (10) is installed on the branch pipe (7). A controller (17) is provided on the feed head (1).

4. The high-efficiency gas mixing reaction apparatus for green methanol synthesis according to claim 2, characterized in that: The mixing assembly includes a guide plate (13), a spiral blade (14), and a porous sieve plate (15), which are sequentially mounted on the corresponding main pipe (6).

5. The high-efficiency gas mixing reaction apparatus for green methanol synthesis according to claim 1, characterized in that: The main tube (6) is provided with a slide groove (12), the slide plate (11) is slidably disposed with the slide groove (12), and the slide plate (11) is connected to the single tank body by fixing bolts.

6. The high-efficiency gas mixing reaction apparatus for green methanol synthesis according to claim 4, characterized in that: The guide plate (13) is configured in a cross shape, and there are multiple guide plates (13), with at least one guide plate (13).

7. The high-efficiency gas mixing reaction apparatus for green methanol synthesis according to claim 4, characterized in that: At least two single tanks are provided, and at least one of the following is provided: the guide plate (13), the spiral blade (14), and the porous sieve plate (15).

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