A pipe mixer for reducing resistance in a liquid nitrogen wash synthesis gas system

Abstract

The utility model relates to pipeline mixer technical field especially relates to a pipeline mixer for reducing liquid nitrogen washing synthesis gas system resistance, including shell body, support ring, support rod, corrugated plate, flow guide hole and buffer assembly, the inner wall fixed setting of shell body has two groups of support rings, the inside fixed setting of support ring has a plurality of support rods, and a plurality of corrugated plates are arranged between two groups of support rings, and a plurality of flow guide holes are passed through and seted up in the inside of corrugated plate, and the inside of shell body is provided with buffer assembly, a pipeline mixer for reducing liquid nitrogen washing synthesis gas system resistance in the utility model is used in the process, and the inside support frame is with its firm frame structure, disperses the residual impact force, and the whole structure intensity of pipeline mixer is strengthened through the inside support structure of the device, and the impact force of super large gas synthesis gas is absorbed with buffer mechanism cooperation, effectively avoid the extrusion deformation of inner part under high load or emergency emptying condition, greatly reduce the risk of synthesis gas pipeline blockage.

Description

Technical Field

[0001] This utility model relates to the field of pipeline mixer technology, and in particular to a pipeline mixer for reducing the resistance of a liquid nitrogen washing synthesis gas system. Background Technology

[0002] The liquid nitrogen washing process uses liquid nitrogen to dissolve and absorb various impurities such as CO in the process gas, so that the impurities are separated from the gaseous hydrogen in liquid form, thereby achieving the purpose of purifying the raw material hydrogen.

[0003] When pipeline mixers are in use, the internal support structure of traditional pipeline mixers usually adopts a single-point support design. Its structural strength is difficult to withstand the impact of instantaneous high-pressure airflow. During production operation, when the system fails, a large amount of venting causes the syngas pipeline to pass through with an excessively large volume. This causes the internal components of the pipeline mixer located between the plate-fin heat exchangers to be squeezed and deformed, and the cross-sectional area of ​​the flow channel is greatly reduced. Ultimately, this leads to blockage of the syngas pipeline, increases the resistance of the liquid nitrogen washing system, and disrupts the heat exchange system. Existing pipeline mixers cannot effectively avoid internal component deformation when facing high production loads or emergency venting situations, and cannot guarantee the stable operation of the liquid nitrogen washing system, increasing production risks and maintenance costs.

[0004] Therefore, to address the aforementioned problem of inconvenience in preventing internal components from deforming under high load or emergency venting conditions, a pipeline mixer can be designed to reduce the resistance of the liquid nitrogen washing syngas system. During normal production, the syngas enters through the pipeline mixer inlet. Guided by the corrugated plates, the syngas flows evenly and orderly along the corrugated path, reducing airflow turbulence and resistance. During this process, the inner support frame, composed of radial support rods and annular support rings, ensures the structural stability of the pipeline mixer, bearing the pressure and impact force generated by the syngas flow. When the system malfunctions and experiences a large-scale venting or a sudden increase in production load, an excessive amount of syngas enters the pipeline mixer. The holes in the corrugated plates will absorb part of the gas flow and absorb some of the gas. The airflow impact force reduces the impact intensity of the airflow on the internal components. At the same time, the internal support frame, with its stable frame structure, further disperses and bears the remaining impact force, ensuring that the internal components such as the corrugated plate will not be squeezed and deformed due to excessive force. This reduces the instantaneous pressure peak, and the treated syngas flows out of the pipeline mixer outlet in a stable and uniform state, entering the subsequent liquid nitrogen washing process. This ensures the stable operation of the liquid nitrogen washing system and effectively reduces system resistance. It is particularly suitable for liquid nitrogen washing process scenarios with large fluctuations in syngas processing volume. The device enhances the overall structural strength of the pipeline mixer through the internal support structure, and, together with the buffer mechanism, absorbs the impact force of large volumes of syngas, effectively preventing the internal components from being squeezed and deformed under high load or emergency venting conditions, greatly reducing the risk of syngas pipeline blockage. Utility Model Content

[0005] To overcome the problem that the internal support structure of traditional pipeline mixers is usually designed with a single point support, its structural strength is difficult to withstand the impact of instantaneous high-pressure airflow, thus making it difficult to avoid the internal components being squeezed and deformed under high load or emergency venting conditions.

[0006] The technical solution of this utility model is as follows: a pipeline mixer for reducing the resistance of a liquid nitrogen washing syngas system, comprising an outer shell, support rings, support rods, corrugated plates, flow guide holes, and a buffer assembly. Two sets of support rings are fixedly arranged on the inner wall of the outer shell, and multiple sets of support rods are fixedly arranged inside the support rings. Multiple sets of corrugated plates are arranged between the two sets of support rings, and multiple sets of flow guide holes are opened through the inside of the corrugated plates. A buffer assembly is arranged inside the outer shell.

[0007] Preferably, when the pipeline mixer is in use, during normal production, syngas enters from the inlet of the pipeline mixer. First, guided by the corrugated plates, the syngas flows evenly and orderly through the pipeline mixer along the corrugated path, reducing airflow turbulence and resistance. During this process, the inner support frame, composed of radial support rods and annular support rings, ensures the structural stability of the pipeline mixer and withstands the pressure and impact force generated by the syngas flow. When the system malfunctions and a large amount of gas is released or the production load suddenly increases, an excessive amount of syngas enters the pipeline mixer. The holes in the corrugated plates will absorb part of the gas flow and some of the airflow impact force, reducing the impact intensity of the airflow on the internal components. Simultaneously, the inner support frame... Its robust frame structure further disperses and absorbs the remaining impact force, ensuring that internal components such as corrugated plates will not be squeezed and deformed due to excessive force. This reduces the instantaneous pressure peak, and the treated syngas flows out of the pipeline mixer outlet in a stable and uniform state, entering the subsequent liquid nitrogen washing process. This ensures the stable operation of the liquid nitrogen washing system and effectively reduces system resistance. It is particularly suitable for liquid nitrogen washing process scenarios with large fluctuations in syngas processing volume. The device enhances the overall structural strength of the pipeline mixer through an internal support structure, and, together with a buffer mechanism, absorbs the impact force of large volumes of syngas. This effectively avoids the internal components being squeezed and deformed under high load or emergency venting conditions, greatly reducing the risk of syngas pipeline blockage.

[0008] Preferably, the buffer assembly includes a guide rod, a limiting ring, and a damping cylinder. Multiple sets of guide rods are fixedly installed on the inner wall of the support ring. Limiting rings are fixedly installed at both the upper and lower ends of the guide rods, and damping cylinders are installed on the side walls of the guide rods.

[0009] Preferably, the buffer assembly also includes a damping spring, the upper and lower end sidewalls of the corrugated plate are fixedly connected to the sidewall of the damping cylinder, the damping cylinder is slidably connected to the guide rod, and damping springs are provided at both the upper and lower ends of the damping cylinder.

[0010] Preferably, one end of the damping spring is fixedly connected to the end face of the damping cylinder, and the other end of the damping spring is fixedly connected to the inner wall of the limiting ring.

[0011] Preferably, the upper end of the outer casing is provided with a mixed gas outlet pipe, and the lower end of the mixed gas outlet pipe is connected to the upper end of the outer casing.

[0012] Preferably, a syngas inlet pipe is provided at the lower end of the outer casing, and the upper end of the syngas inlet pipe is connected to the lower end of the outer casing.

[0013] Preferably, the outer wall of the outer casing is provided with a medium-pressure nitrogen inlet pipe, and the left end of the medium-pressure nitrogen inlet pipe is connected through to the side wall of the outer casing.

[0014] The beneficial effects of this utility model are:

[0015] When the pipeline mixer is in use, during normal production, syngas enters through the inlet. Guided by the corrugated plates, the syngas flows evenly and orderly along the corrugated path, reducing airflow turbulence and resistance. During this process, the inner support frame, composed of radial support rods and annular support rings, ensures the structural stability of the pipeline mixer and withstands the pressure and impact force generated by the syngas flow. When the system malfunctions and experiences a large-scale venting or a sudden increase in production load, an excessive amount of syngas enters the pipeline mixer. The holes in the corrugated plates absorb part of the gas flow and some of the airflow impact force, reducing the impact intensity of the airflow on the internal components. Simultaneously, the inner support frame, with its… The robust frame structure further disperses and absorbs the remaining impact force, ensuring that internal components such as the corrugated plate will not be squeezed and deformed due to excessive force. This reduces the instantaneous pressure peak, and the treated syngas flows out of the pipeline mixer outlet in a stable and uniform state, entering the subsequent liquid nitrogen washing process. This ensures the stable operation of the liquid nitrogen washing system and effectively reduces system resistance. It is particularly suitable for liquid nitrogen washing process scenarios with large fluctuations in syngas processing volume. The device enhances the overall structural strength of the pipeline mixer through the internal support structure, and, together with the buffer mechanism, absorbs the impact force of large volumes of syngas. This effectively avoids the internal components being squeezed and deformed under high load or emergency venting conditions, greatly reducing the risk of syngas pipeline blockage. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of a pipeline mixer according to the present invention, which can reduce the resistance of a liquid nitrogen washing syngas system.

[0017] Figure 2 The diagram shown is a half-section perspective view of the outer shell of a pipeline mixer for reducing the resistance of a liquid nitrogen washing syngas system according to this utility model.

[0018] Figure 3The diagram shown is a first three-dimensional structural diagram of the corrugated plate periphery of a pipeline mixer for reducing the resistance of a liquid nitrogen washing syngas system according to the present invention.

[0019] Figure 4 The diagram shown is a schematic representation of the second three-dimensional structure of the corrugated plate surrounding a pipeline mixer for reducing the resistance of a liquid nitrogen washing syngas system according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Support ring; 3. Support rod; 4. Corrugated plate; 5. Flow guide hole; 6. Guide rod; 7. Limiting ring; 8. Damping cylinder; 9. Damping spring; 10. Mixed gas outlet pipe; 11. Syngas inlet pipe; 12. Medium-pressure nitrogen inlet pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 3 This utility model provides an embodiment: a pipeline mixer for reducing the resistance of a liquid nitrogen washing syngas system, comprising an outer shell 1, support rings 2, support rods 3, corrugated plates 4, flow guide holes 5, and a buffer assembly. Two sets of support rings 2 are fixedly arranged on the inner wall of the outer shell 1. Multiple sets of support rods 3 are fixedly arranged inside the support rings 2. Multiple sets of corrugated plates 4 are arranged between the two sets of support rings 2. Multiple sets of flow guide holes 5 are opened through the inside of the corrugated plates 4. A buffer assembly is arranged inside the outer shell 1.

[0023] Please see Figure 3 and Figure 4 The buffer assembly includes guide rods 6, limiting rings 7, and damping cylinders 8. Multiple sets of guide rods 6 are fixedly installed on the inner wall of the support ring 2. Limiting rings 7 are fixedly installed at both the upper and lower ends of the guide rods 6. Damping cylinders 8 are installed on the side walls of the guide rods 6. When a sudden load change occurs in the system, the excess airflow first impacts the corrugated plate 4. At this time, the damping cylinders 8 on both sides of the corrugated plate 4 generate axial displacement on the guide rods 6. The buffer assembly also includes damping springs 9. The upper and lower side walls of the corrugated plate 4 are fixedly connected to the side walls of the damping cylinders 8. The damping cylinders 8 are slidably connected to the guide rods 6. Damping springs 9 are installed at both the upper and lower ends of the damping cylinders 8. The damping cylinder 8 generates axial displacement on the guide rod 6, compressing the upper and lower damping springs 9 to form a reverse force, converting the impact kinetic energy into elastic potential energy. The corrugated plate 4 itself undergoes elastic deformation within the displacement range, which, in conjunction with the throttling effect of the guide hole 5, causes the damping cylinder 8 to generate ... corrugated plate 4 to generate axial displacement on the guide rod 6, compressing the upper and lower damping springs 9 to form a reverse force, converting the impact kinetic energy into elastic potential energy.

[0024] Please see Figure 1 and Figure 2 The upper end of the outer shell 1 is provided with a mixed gas outlet pipe 10, and the lower end of the mixed gas outlet pipe 10 is connected to the upper end of the outer shell 1. The treated syngas flows out from the mixed gas outlet pipe 10 in a stable and uniform state. The lower end of the outer shell 1 is provided with a syngas inlet pipe 11, and the upper end of the syngas inlet pipe 11 is connected to the lower end of the outer shell 1. Syngas enters the outer shell 1 through the syngas inlet pipe 11. The outer wall of the outer shell 1 is provided with a medium-pressure nitrogen inlet pipe 12, and the left end of the medium-pressure nitrogen inlet pipe 12 is connected to the side wall of the outer shell 1. Medium-pressure nitrogen enters the outer shell 1 through the medium-pressure nitrogen inlet pipe 12.

[0025] When the pipeline mixer is in use, the device structure is described as follows: The pipeline mixer device of this utility model is cylindrical in shape. The outer shell 1 and the connected pipeline are connected by welding to ensure a tight connection and prevent gas leakage. The annular support ring 2 of the inner support frame is fixed to the inner wall of the outer shell 1 by welding. The radial support rod 3 is connected to the annular support ring 2 by welding to form a solid support structure. Multiple sets of corrugated plates 4 are set between the two sets of support structures. The outer shell 1, as the external frame of the entire pipeline mixer, not only provides installation space for internal components, but also bears the pressure generated by the flow of syngas in the pipeline. Its high-strength corrosion-resistant material ensures long-term stable operation in the liquid nitrogen washing process environment. The annular support ring 2 of the inner support frame enhances the circumferential strength of the outer shell 1 and prevents the outer shell 1 from deforming under high pressure. The radial support rod 3 connects the annular support ring 2 together to form a stable three-dimensional support structure, which improves the pressure resistance of the entire pipeline mixer. The inner support frame provides a stable installation foundation for the corrugated plates 4, ensuring that they will not loosen or shift due to airflow impact during operation.

[0026] When the syngas enters the pipe mixer, the corrugated plate 4 uses its specific curvature and angle to guide the syngas to flow along the corrugated path, making the airflow distribution more uniform and reducing the mutual collision and friction between airflows, thereby reducing flow resistance. This pipe mixer achieves low-resistance operation through the synergistic effect of structural optimization and dynamic buffering mechanism. During normal production, the syngas enters from the pipe mixer inlet. First, under the guidance of the corrugated plate 4, the syngas passes through the pipe mixer uniformly and orderly along the corrugated path, reducing airflow turbulence and resistance.

[0027] During this process, the internal support frame ensures the structural stability of the pipeline mixer and withstands the pressure and impact force generated by the flow of syngas. When the system malfunctions and a large amount of gas is released or the production load suddenly increases, an excessive amount of syngas enters the pipeline mixer. The holes on the corrugated plate 4 will bear part of the gas flow and absorb part of the airflow impact force, reducing the impact intensity of the airflow on the internal components.

[0028] When the system experiences a sudden load change, the excess gas flow first impacts the corrugated plate 4. At this time, the damping cylinders 8 on both sides of the corrugated plate 4 generate axial displacement on the guide rod 6, compressing the upper and lower damping springs 9 to form a reverse force, converting the impact kinetic energy into elastic potential energy. The corrugated plate 4 itself undergoes elastic deformation within the displacement range. Combined with the throttling effect of the guide hole 5, the internal support frame, with its stable frame structure, further disperses and bears the remaining impact force, ensuring that the internal components such as the corrugated plate 4 will not be squeezed and deformed due to excessive force, thus reducing the instantaneous pressure peak. The treated syngas flows out from the outlet of the pipeline mixer in a stable and uniform state and enters the subsequent liquid nitrogen washing process, ensuring the stable operation of the liquid nitrogen washing system and effectively reducing system resistance. It is particularly suitable for liquid nitrogen washing process scenarios with large fluctuations in syngas processing volume. This device enhances the overall structural strength of the pipeline mixer through the internal support structure and absorbs the impact force of the excess syngas with the buffer mechanism, effectively avoiding the squeezing and deformation of the internal components under high load or emergency venting conditions, and greatly reducing the risk of syngas pipeline blockage.

[0029] Through the above steps, when the pipeline mixer is in use, during normal production, syngas enters from the inlet of the pipeline mixer. First, guided by the corrugated plate 4, the syngas flows evenly and orderly along the corrugated path through the pipeline mixer, reducing airflow turbulence and resistance. During this process, the inner support frame composed of the radial support rod 3 and the annular support ring 2 ensures the structural stability of the pipeline mixer, bearing the pressure and impact force generated by the syngas flow. When the system malfunctions and a large amount of gas is released or the production load suddenly increases, an excessive amount of syngas enters the pipeline mixer. The holes on the corrugated plate 4 will bear part of the gas flow and absorb part of the airflow impact force, reducing the impact intensity of the airflow on the internal components. Simultaneously, the inner support... With its robust frame structure, the frame further disperses and withstands the remaining impact force, ensuring that internal components such as the corrugated plate 4 are not squeezed and deformed due to excessive force. This reduces the instantaneous pressure peak, and the treated syngas flows out of the pipeline mixer outlet in a stable and uniform state, entering the subsequent liquid nitrogen washing process. This ensures the stable operation of the liquid nitrogen washing system and effectively reduces system resistance. It is particularly suitable for liquid nitrogen washing process scenarios with large fluctuations in syngas processing volume. The device enhances the overall structural strength of the pipeline mixer through the internal support structure, and, together with the buffer mechanism, absorbs the impact force of super-large volume syngas, effectively preventing the internal components from being squeezed and deformed under high load or emergency venting conditions, greatly reducing the risk of syngas pipeline blockage.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pipeline mixer for reducing resistance in a liquid nitrogen washing syngas system, comprising an outer casing (1), characterized in that: It also includes a support ring (2), a support rod (3), a corrugated plate (4), a flow guide hole (5) and a buffer assembly. Two sets of support rings (2) are fixedly installed on the inner wall of the outer shell (1). Multiple sets of support rods (3) are fixedly installed inside the support rings (2). Multiple sets of corrugated plates (4) are installed between the two sets of support rings (2). Multiple sets of flow guide holes (5) are opened through the inside of the corrugated plates (4). A buffer assembly is installed inside the outer shell (1).

2. A pipeline mixer for reducing resistance in a liquid nitrogen washing syngas system according to claim 1, characterized in that: The buffer assembly includes a guide rod (6), a limiting ring (7) and a damping cylinder (8). Multiple sets of guide rods (6) are fixedly installed on the inner wall of the support ring (2). Limiting rings (7) are fixedly installed at both the upper and lower ends of the guide rods (6). Damping cylinders (8) are installed on the side walls of the guide rods (6).

3. A pipeline mixer for reducing resistance in a liquid nitrogen washing syngas system according to claim 2, characterized in that: The buffer assembly also includes a damping spring (9), the upper and lower end sidewalls of the corrugated plate (4) are fixedly connected to the sidewall of the damping cylinder (8), the damping cylinder (8) is slidably connected to the guide rod (6), and the upper and lower end of the damping cylinder (8) are provided with damping springs (9).

4. A pipeline mixer for reducing resistance in a liquid nitrogen washing syngas system according to claim 3, characterized in that: One end of the damping spring (9) is fixedly connected to the end face of the damping cylinder (8), and the other end of the damping spring (9) is fixedly connected to the inner wall of the limiting ring (7).

5. A pipeline mixer according to claim 1 for reducing the resistance of a liquid nitrogen washing syngas system, characterized in that: The upper end of the outer shell (1) is provided with a mixed gas outlet pipe (10), and the lower end of the mixed gas outlet pipe (10) is connected to the upper end of the outer shell (1).

6. A pipeline mixer according to claim 1 for reducing the resistance of a liquid nitrogen washing syngas system, characterized in that: A syngas inlet pipe (11) is provided at the lower end of the outer shell (1), and the upper end of the syngas inlet pipe (11) is connected to the lower end of the outer shell (1).

7. A pipeline mixer according to claim 1 for reducing the resistance of a liquid nitrogen washing syngas system, characterized in that: The outer wall of the outer shell (1) is provided with a medium-pressure nitrogen inlet pipe (12), and the left end of the medium-pressure nitrogen inlet pipe (12) is connected to the side wall of the outer shell (1).

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