Efficient jacket type conversion pipe and integrated converter device thereof

Abstract

The invention relates to an efficient jacketed conversion tube and an integrated converter device thereof, the efficient jacketed conversion tube comprises a plurality of conversion tubes arranged correspondingly, each conversion tube comprises a conversion tube main body, and the conversion tube main body adopts a finned tube to form a finned tube structure capable of efficiently conducting heat; the jacket module is used for providing heat and comprises a plurality of jackets corresponding to the plurality of conversion pipes, the plurality of jackets are communicated with one another, a heating medium inlet is formed in one side surface of the jacket positioned on the outermost side, and a heating medium outlet is formed in the other side surface of the jacket positioned on the outermost side; the conversion pipes are communicated through elbows, the upper side pipe orifice of one of the conversion pipes on the outermost side is used as a raw material gas inlet, and the other conversion pipe is used as a reacted gas outlet.

Description

Technical Field

[0001] This invention relates to the field of methanol-to-hydrogen chemical equipment technology, specifically, to a high-efficiency jacketed conversion tube and its integrated converter device. Background Technology

[0002] The converter is the core equipment in a methanol-to-hydrogen plant. The feed gas enters the converter, absorbs heat from the heat transfer oil, and undergoes a full catalytic reaction to produce hydrogen-rich converted gas.

[0003] Traditional converters are relatively long and use fixed tube sheet type converter tubes. Different outputs are achieved by increasing the converter diameter, conversion length and number of tubes. They are pressure vessels, with high equipment processing requirements, high equipment manufacturing, transportation and installation costs, and are inconvenient for skid installation.

[0004] With the development of skid-mounted methanol-to-hydrogen units, how to reduce the size of the reactor, make it easier to process and disassemble, and install it in a modular form has become an important issue.

[0005] Therefore, it is necessary to provide a high-efficiency jacketed converter tube and its integrated converter device to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency jacketed converter tube and its integrated converter device.

[0007] The technical solution is as follows: A high-efficiency jacketed converter tube, comprising: Several corresponding conversion tubes are provided. Each conversion tube includes a conversion tube body and adopts a finned tube to form a finned tube structure that can conduct heat efficiently. The jacket module is used to form a heat supply module. The jacket module includes several jackets corresponding to several conversion tubes. The jackets are interconnected. The outermost jacket has a heating medium inlet on one of them and a heating medium outlet on the other. The conversion tubes are connected by elbows. The outermost conversion tube has one of its ports not connected to the elbow as a raw material gas inlet and the other as a gas outlet after reaction.

[0008] Several conversion tubes are interconnected, and the heating medium in several jackets provides heat to the reaction, forming a highly efficient jacketed conversion tube structure.

[0009] Furthermore, the heating medium is heat transfer oil; the number of conversion tubes is at least three.

[0010] Furthermore, flanges are installed at both ends of the conversion pipe and both ends of the elbow. The flanges of the conversion pipe and the elbow are connected to each other, and a sealing gasket is installed at the connection.

[0011] Furthermore, the conversion tube can also be made of smooth tube, finned tube, or seamless steel tube, and the material is not limited to 15CrMo, 304 stainless steel, or 20G. The size and length of the conversion tube can be adjusted according to the production volume.

[0012] Furthermore, the heat transfer oil can enter the jacket from the top and exit from the bottom; alternatively, it can enter from the bottom and exit from the top. The raw material gas can enter from the top and exit as converted gas from the bottom; alternatively, it can enter from the bottom and exit as converted gas from the top. The choice can be made according to the engineering requirements.

[0013] Technical Solution Two: A high-efficiency jacketed conversion tube integrated converter device includes a reactor shell, inside which are arranged several sets of high-efficiency jacketed conversion tube modules. Each high-efficiency jacketed conversion tube module has several interconnected high-efficiency jacketed conversion tubes. The feed gas can be sent to the inlet of each conversion tube through a manifold, and the converted gas exits the device through the manifold. The heat transfer oil enters the jacket of each conversion tube through the inlet manifold and exits the reactor device through the outlet manifold.

[0014] Furthermore, each conversion tube requires a corresponding jacket for heat supply and is integrated inside the reactor shell, which is not limited to a specific shape.

[0015] Furthermore, each conversion pipe has a diameter <DN50, is not a pressure pipe, and its outer shell is at atmospheric pressure; therefore, after integration, it does not belong to a pressure vessel.

[0016] Furthermore, temperature and pressure devices are installed at the manifold to monitor the reaction status in real time, facilitating rapid assessment of the reactor's operating condition.

[0017] Furthermore, the manifold specifically includes a heat transfer oil inlet manifold, a heat transfer oil outlet manifold, a raw material gas inlet manifold, and a converted gas outlet manifold.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By standardizing the high-efficiency jacketed conversion tube, the conversion tube is divided into several parts, reducing the length and lowering the height of the integrated reactor, which facilitates skid mounting and transportation.

[0019] (2) Using flange, compression fitting or welding connection, it is convenient to quickly assemble the conversion tube and facilitates troubleshooting and replacement; (3) The inner diameter of the high-efficiency jacketed conversion tube is <DN50, which is not a pressure vessel. The conversion tube and shell are easy to process and are conducive to mass production. (4) The overall height is reduced, and the steel ladder auxiliary components are reduced. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a high-efficiency jacketed converter tube.

[0021] Figure 2 This is a structural schematic diagram of a high-efficiency jacketed converter tube integrated converter device. Detailed Implementation

[0022] Example:

[0023] Please see Figure 1 This embodiment demonstrates a high-efficiency jacketed conversion tube 100, comprising: Several corresponding conversion tubes 1 are provided. Each conversion tube 1 includes a conversion tube body and adopts a finned tube to form a finned tube structure that can conduct heat efficiently. The jacket module 2 is used to form a heat supply jacket module 2. The jacket module 2 includes a plurality of jackets 21 corresponding to a plurality of conversion tubes. The plurality of jackets 21 are interconnected. The outermost jacket 21 has a heating medium inlet 3 on one side and a heating medium outlet 4 on the other side. The conversion tubes 1 are connected by elbows 5. The outermost conversion tube 1 has an upper port on one side used as a raw material gas inlet 11 and a lower port on the other side used as a reaction gas outlet 12.

[0024] Several conversion tubes 1 are interconnected and are heated and converted by heating media through several jackets 21, forming a high-efficiency jacketed conversion tube structure.

[0025] The heating medium is heat transfer oil; the number of conversion tubes 1 is at least three.

[0026] Flanges 6 are provided at both ends of the conversion pipe 5 and both ends of the elbow. The flanges 6 of the conversion pipe 1 and the elbow 5 are connected to each other, and a sealing gasket is provided at the connection.

[0027] The conversion tube 1 can also be made of smooth tube, finned tube, or seamless steel tube. The material is not limited to 15CrMo, 304 stainless steel, or 20G. The size and length of the conversion tube can be adjusted according to the production volume.

[0028] The heat transfer oil enters the jacket 21 from the top and exits from the bottom; alternatively, it can enter the jacket 21 from the bottom and exit from the top. The raw material gas enters from the top and exits as converted gas from the bottom; alternatively, it can enter from the bottom and exit as converted gas from the top. The appropriate method can be selected based on the engineering requirements.

[0029] Based on the high-efficiency jacketed converter tube 100, this embodiment can form a high-efficiency jacketed converter tube integrated converter device 200, as detailed in the following document. Figure 2The reactor includes a reactor shell 7, inside which are installed several sets of high-efficiency jacketed conversion tube modules 300. Each high-efficiency jacketed conversion tube module 300 has several interconnected high-efficiency jacketed conversion tubes 100. The raw material gas can be sent to the inlet of each conversion tube through the manifold 8, and the converted gas exits the device through the manifold 8. The heat transfer oil enters the jacket of each conversion tube through the inlet manifold and exits the reactor device through the outlet manifold.

[0030] Each conversion tube 1 requires a corresponding jacket 21 to supply conversion temperature, and is integrated inside the reactor shell 7, which is not limited to a specific shape.

[0031] Each conversion pipe with a diameter <DN50 is not a pressure pipe; the outer shell is at atmospheric pressure, and the integrated pipe is not classified as a pressure vessel.

[0032] Temperature and pressure devices are installed at 8 points in the manifold to monitor the reaction status in real time and facilitate quick assessment of the reactor's operating condition.

[0033] The manifold 8 specifically includes a heat transfer oil inlet manifold 81, a heat transfer oil outlet manifold 82, a raw material gas inlet manifold 83, and a converted gas outlet manifold 84.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By standardizing the high-efficiency jacketed conversion tube, the conversion tube is divided into several parts, reducing the length and lowering the height of the integrated reactor, which facilitates skid mounting and transportation.

[0035] (2) Using flange, compression fitting or welding connection, it is convenient to quickly assemble the conversion tube and facilitates troubleshooting and replacement; (3) The inner diameter of the high-efficiency jacketed conversion tube is <DN50, which is not a pressure vessel. The conversion tube and shell are easy to process and are conducive to mass production. (4) The overall height is reduced, and the steel ladder auxiliary components are reduced.

[0036] For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this invention, and these all fall within the protection scope of this invention.

Claims

1. A high-efficiency jacketed converter tube, characterized in that: include: Several corresponding conversion tubes: The conversion tube includes a conversion tube body, which adopts a finned tube to form a finned tube structure that can conduct heat efficiently; The jacket module for providing heat includes several jackets corresponding to several conversion tubes. The jackets are connected to each other. The outermost jacket has a heating medium inlet on one side and a heating medium outlet on the other side. The conversion tubes are connected by elbows. The outermost conversion tube has an upper opening used as a raw material gas inlet and an other opening used as a gas outlet after reaction. Several conversion tubes are interconnected and heated and converted by heating media in several jackets, forming a high-efficiency jacketed conversion tube structure.

2. The high-efficiency jacketed conversion tube according to claim 1, characterized in that: The heating medium is heat transfer oil; the number of conversion tubes is at least three.

3. The high-efficiency jacketed conversion tube according to claim 2, characterized in that: Flanges are installed at both ends of the conversion pipe and both ends of the elbow. The flanges of the conversion pipe and the elbow are connected to each other, and a sealing gasket is installed at the connection.

4. The high-efficiency jacketed conversion tube according to claim 3, characterized in that: The conversion tube can also be made of smooth tube, finned tube, or seamless steel tube. The material is not limited to 15CrMo, 304 stainless steel, or 20G. The size and length of the conversion tube can be adjusted according to the production volume.

5. A high-efficiency jacketed conversion tube according to claim 4, characterized in that: The heat transfer oil enters the jacket from the top and exits from the bottom; alternatively, it can enter from the bottom and exit from the top. The raw material gas enters from the top and exits as converted gas; alternatively, it can enter from the bottom and exit as converted gas. The appropriate method can be selected based on the engineering requirements.

6. A high-efficiency jacketed converter integrated converter device, characterized in that: The device includes a reactor shell, within which are arranged a plurality of sets of high-efficiency jacketed conversion tubes as described in claim 1 of claim 5, characterized in that: the heating medium is heat transfer oil; each high-efficiency jacketed conversion tube module has a plurality of interconnected high-efficiency jacketed conversion tubes; the raw material gas can be sent to the raw material inlet of each conversion tube through a manifold, and the converted gas enters the manifold outlet through the outlet; the heat transfer oil enters the jacket of each conversion tube through the inlet manifold, and exits the reactor device through the outlet manifold.

7. The high-efficiency jacketed converter integrated device according to claim 6, characterized in that: Each conversion tube requires a corresponding jacket for heat supply and is integrated inside the reactor shell, which is not limited to a specific shape.

8. The high-efficiency jacketed converter integrated device according to claim 7, characterized in that: Each conversion pipe has a diameter <DN50 and is not a pressure pipe. The outer shell is at atmospheric pressure and does not belong to a pressure vessel after integration.

9. The high-efficiency jacketed converter integrated device according to claim 8, characterized in that: Temperature and pressure devices are installed at the manifold to monitor the reaction status in real time, facilitating rapid assessment of the reactor's operating condition.

10. The high-efficiency jacketed converter integrated device according to claim 9, characterized in that: The manifold specifically includes the heat transfer oil inlet manifold, the heat transfer oil outlet manifold, the raw material gas inlet manifold, and the converted gas outlet manifold.

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