Furnace tube assembly and converter thereof

Abstract

The embodiment of the utility model provides a furnace tube assembly and a converter thereof. The furnace tube assembly comprises a furnace tube and a plugging piece. The furnace tube is partially inserted into the hearth; the furnace tube is provided with a conversion cavity and a pick-and-place end; the conversion cavity is formed in the furnace tube located in the hearth, and the conversion cavity located in the hearth is used for containing a catalyst; and the pick-and-place end is positioned outside the hearth and forms a pick-and-place opening communicated with the conversion cavity. The blocking piece is detachably arranged at the taking and placing end to block the taking and placing opening. The converter comprises the furnace tube assembly. According to the furnace tube assembly provided by the embodiment of the invention, a user can replace the expired catalyst or the catalyst with a reduced catalytic effect in the reformer under the condition that the furnace tube and the hearth are not cut. Therefore, the catalytic effect on the mixed gas is ensured. When a new catalyst is replaced, the operation is simple and convenient, the replacement efficiency is high, and the cost is low.

Description

Technical Field

[0001] The present disclosure relates to the field of hydrogen production, and in particular to a furnace tube assembly and a reformer thereof. Background Art

[0002] The furnace tube is a hydrogen production device installed in the furnace of the reformer. A catalyst is placed in the furnace tube to catalyze the mixed gas entering the tube under high temperature. However, the existing furnace tube is closed and installed in the furnace. Therefore, when the catalyst is used up or exceeds the service life, the staff can only replace the new catalyst by cutting the furnace tube or the furnace. However, this replacement method is not only time-consuming and labor-intensive, but also has low replacement efficiency and high replacement cost. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide a furnace tube assembly and a reformer thereof to solve the problems in the related art.

[0004] A first aspect of the present disclosure provides a furnace tube assembly, comprising:

[0005] A furnace tube is partially inserted into the furnace; the furnace tube has a conversion chamber and a pick-up and placement end; the conversion chamber is formed in the furnace tube located in the furnace, and the conversion chamber located in the furnace is used to place a catalyst; the pick-up and placement end is located outside the furnace and is formed with a pick-up and placement port connected to the conversion chamber.

[0006] A blocking member is detachably arranged at the access end to block the access opening.

[0007] In an embodiment of the first aspect, the taking and placing end is provided with a mounting member matched with the blocking member, and the blocking member is connected to the wall surface of the mounting member facing away from the conversion end through a flange to block the taking and placing port.

[0008] In an embodiment of the first aspect, a sealing member is provided between the blocking member and the mounting member.

[0009] In an embodiment of the first aspect, the furnace tube assembly further includes a heat preservation component disposed in the conversion chamber, and the heat preservation component is located between the access port and the catalyst.

[0010] In an embodiment of the first aspect, the furnace chamber forms a first mounting hole for inserting the furnace pipe; a heat insulating seal is provided in the first mounting hole, and the furnace pipe is sleeved in the heat insulating seal.

[0011] In an embodiment of the first aspect, the thermal insulation seal comprises an annular sealing shell and a thermal insulation member filled in the annular sealing shell.

[0012] In an embodiment of the first aspect, the furnace tube assembly further comprises a heat preservation component arranged in the conversion chamber, wherein the heat preservation component is located between the access port and the catalyst; the depth of the heat preservation component extending into the furnace is greater than the depth of the heat insulation seal extending into the furnace.

[0013] In an embodiment of the first aspect, the annular sealing shell is detachably mounted on the outer wall of the furnace.

[0014] In an embodiment of the first aspect, the furnace tube is fixedly sleeved on the thermal insulation seal.

[0015] Another aspect of the present disclosure provides a reformer, comprising the furnace tube assembly.

[0016] As described above, a furnace tube assembly and a converter thereof are provided in an embodiment of the present disclosure, wherein the furnace tube assembly includes a furnace tube and a plugging member. The furnace tube portion is inserted into the furnace chamber; the furnace tube has a conversion chamber and a pick-up and drop-out end; the conversion chamber is formed in the furnace tube located in the furnace chamber, and the conversion chamber located in the furnace chamber is used to place a catalyst; the pick-up and drop-out end is located outside the furnace chamber and is formed with a pick-up and drop-out port communicating with the conversion chamber; the plugging member is detachably provided at the pick-up and drop-out end to block the pick-up and drop-out port. The converter includes the furnace tube assembly. Through the furnace tube assembly provided in the embodiment of the present disclosure, the user can replace the catalyst located in the converter that is expired or has reduced catalytic effect without cutting the furnace tube and the furnace chamber. To ensure the catalytic effect on the mixed gas. When replacing a new catalyst, the embodiment of the present disclosure is easy to operate, has high replacement efficiency, and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a partial structural schematic diagram of a furnace tube assembly inserted into a furnace of a reformer in an embodiment of the present disclosure;

[0018] Figure 2 , which is a schematic diagram of the overall structure in which a heat insulating seal is provided between the furnace tube assembly and the reforming furnace in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] The following is an explanation of the embodiments of the present disclosure by specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed by the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in the present disclosure can also be modified or changed in various ways according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0020] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0021] In the representations of the present disclosure, the reference terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" and the like mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials or characteristics represented may be combined in any one or a group of embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples represented in the present disclosure and the features of different embodiments or examples, unless they are mutually contradictory.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of the present disclosure, "a group" means two or more, unless otherwise clearly and specifically defined.

[0023] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.

[0024] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0025] Although the terms first, second, etc. are used to represent various elements in this article in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate that there are the described features, steps, operations, elements, modules, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or a group of other features, steps, operations, elements, modules, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0026] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the sentence clearly indicates the contrary meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0027] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which the present disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the message of the present disclosure, and shall not be overly interpreted as ideal or very formal meanings unless defined.

[0028] The furnace tube is a hydrogen production device installed in the furnace of the reformer. A catalyst is placed in the furnace tube to catalyze the mixed gas entering the tube under high temperature. However, the existing furnace tube is closed and installed in the furnace. Therefore, when the catalyst is used up or exceeds the service life, the staff can only replace the new catalyst by cutting the furnace tube or the furnace. However, this replacement method is not only time-consuming and labor-intensive, but also has low replacement efficiency and high replacement cost.

[0029] Based on the above problems, a furnace tube assembly is provided in an embodiment of the present disclosure, wherein one end of the furnace tube assembly located outside the converter can be opened, so that the catalyst can be directly removed from the opened end of the furnace tube assembly without cutting the furnace tube or the furnace chamber. The operation is simple, and the replacement efficiency is high and the cost is low.

[0030] Figure 1 FIG. 1 is a schematic diagram of a part of the structure in which the furnace tube assembly is inserted into the furnace of the reformer in the embodiment of the present disclosure. Figure 1 In the example, the furnace tube 10 assembly is arranged in the furnace of the reformer 100. The furnace tube 10 assembly includes a furnace tube 10 and a plugging member 20.

[0031] The furnace tube 10 is partially inserted into the furnace. For example, a first mounting hole 1001 is formed on the top wall of the reformer 100, which is connected to the furnace and the outside, and the furnace tube 10 is sleeved in the first mounting hole 1001 and is partially located in the furnace. In another embodiment, the first mounting hole 1001 may also be formed on other side walls of the reformer 100. Exemplarily, the furnace tube 10 is implemented as a round tube, and the first mounting hole 1001 is adaptively implemented as a round tube. In another embodiment, the furnace tube 10 and the first mounting hole 1001 may also be implemented as a square.

[0032] The furnace tube 10 has a conversion chamber 101 and a pick-up and drop-out end 11. The conversion chamber 101 is formed in the furnace tube 10 located in the furnace, and the conversion chamber 101 located in the furnace is used to place the catalyst. The pick-up and drop-out end 11 is located outside the furnace and is formed with a pick-up and drop-out port 1101 communicating with the conversion chamber 101. Exemplarily, the conversion chamber 101 is entirely formed in the furnace tube 10 located in the furnace, and the pick-up and drop-out port 1101 extends to the furnace along the length direction of the furnace tube 10 and communicates with the conversion chamber 101. Further exemplarily, the cross-sectional area and shape of the pick-up and drop-out port 1101 are adapted to the conversion chamber 101, or the cross-sectional area of ​​the pick-up and drop-out port 1101 is larger than the cross-sectional area of ​​the conversion chamber 101. So that the catalyst can be smoothly moved out of the conversion chamber 101 from the pick-up and drop-out port 1101. Thereby, it is convenient for users to take and place the catalyst.

[0033] In another embodiment, a portion of the conversion chamber 101 is formed in the furnace tube 10 located in the furnace, and another portion is formed in the furnace tube 10 located outside the furnace. The access opening 1101 extends along the length direction of the furnace tube 10 to communicate with the conversion chamber 101 .

[0034] The blocking member 20 is detachably provided at the access end 11 to block the access port 1101. Exemplarily, the access end 11 is provided with a mounting member 111 adapted to the blocking member 20, and the blocking member 20 is connected to the wall of the mounting member 111 facing away from the conversion end through a flange to block the access port 1101. For example, the mounting member 111 is implemented as a flange, and the blocking member 20 is implemented as a flange. The flange and the flange are fixed by bolts, thereby blocking the access port 1101 to prevent the mixed gas or the reacted gas from overflowing from the access port 1101.

[0035] In another embodiment, a blocking block for filling the access opening 1101 is provided on the wall of the blocking member 20 facing the access opening 1101 , so as to further improve the effect of preventing the mixed gas or the reacted gas from overflowing from the access opening 1101 .

[0036] Exemplarily, a sealing member 30 is provided between the blocking member 20 and the mounting member 111. Exemplarily, the sealing member 30 is implemented as a high temperature resistant sealing ring. To prevent the sealing member 30 from losing its sealing effect due to high temperature deformation. Exemplarily, the sealing member 30 is implemented in a ring shape, and the hollow area is adapted to the cross-sectional area of ​​the access port 1101. When the blocking member 20 blocks the access port 1101, the sealing member 30 implemented in a ring shape fits around the access port 1101. In another embodiment, the sealing member 30 may also be implemented as a circle that completely covers the access port 1101. To further improve the effect of preventing the mixed gas or the reacted gas from overflowing from the access port 1101.

[0037] Through the furnace tube 10 assembly provided in the embodiment of the present disclosure, the user can replace the catalyst located in the reformer 100 that is expired or has reduced catalytic effect without cutting the furnace tube 10 and the furnace, so as to ensure the catalytic effect on the mixed gas. When replacing a new catalyst in the embodiment of the present disclosure, the operation is simple, the replacement efficiency is high, and the cost is low.

[0038] exist Figure 1 In the example, the furnace tube 10 assembly further includes a heat preservation member 40 disposed in the conversion chamber 101, and the heat preservation member 40 is located between the access port 1101 and the catalyst. Exemplarily, the heat preservation member 40 is implemented as ceramic fiber wool. The provision of the heat preservation wool can not only prevent the mixed gas from flowing to the access port 1101 and overflowing from the access port 1101, but also prevent the high-temperature gas in the furnace from flowing to the access port 1101, so as to maintain the temperature in the furnace in accordance with the reaction.

[0039] Figure 2The figure shows the overall structure of the embodiment of the present disclosure in which a heat insulating seal is provided between the furnace tube assembly and the reforming furnace. Figure 2 In the example, a heat insulating seal 50 is disposed in the first mounting hole 1001, and the furnace tube 10 is sleeved on the heat insulating seal 50. Exemplarily, the heat insulating seal 50 is implemented in an annular shape and has a second mounting hole for sleeved the furnace tube 10. Exemplarily, the heat insulating seal 50, the first mounting hole 1001, and the furnace tube 10 are coaxially arranged.

[0040] The heat-insulating seal 50 includes an annular sealing shell 51 and a heat-insulating member 52 filled in the annular sealing shell 51. Exemplarily, the annular sealing shell 51 has a accommodating cavity 5101, and the heat-insulating member 52 fills the accommodating cavity 5101 of the annular sealing shell 51. Exemplarily, the heat-insulating member 52 is implemented as ceramic fiber wool. Exemplarily, the annular sealing shell 51 includes a first shell 511 and a second shell 512. The first shell 511 is sleeved in the first mounting hole 1001 and fixed to the outer wall of the converter 100 by bolt connection. Exemplarily, a sealing ring (not shown in the figure) is provided between the first shell 511 and the outer wall of the converter 100. The second shell 512 is covered by welding on the part of the first shell 511 exposed outside the converter 100. That is, the accommodating cavity 5101 is composed of a space enclosed by the first shell 511 and the second shell 512. In another embodiment, the first shell 511 and the second shell 512 may also be integrally formed to improve the strength and integrity of the annular sealing shell 51 .

[0041] exist Figure 2 In the example, the first shell 511 forms a main second mounting hole 51101, and the second shell 512 forms a secondary second mounting hole 51201. The furnace tube 10 is sequentially sleeved in the main second mounting hole 51101 and the secondary second mounting hole 51201 and partially inserted into the furnace. At this time, the heat insulating member 52 with ceramic fiber wool is closely attached to the outer wall of the furnace tube 10 located in the accommodating cavity 5101, so as to improve the heat insulating effect of the heat insulating seal 50.

[0042] Exemplarily, the furnace tube 10 is welded to the first shell 511 at the positions of the main second mounting hole 51101 and the auxiliary second mounting hole 51201. It is understandable that, through the welding connection between the furnace tube 10 and the heat insulation seal 50, the gap between the furnace tube 10 and the heat insulation seal 50 can be blocked by solder, thereby preventing the heat in the furnace from overflowing through the gap between the furnace tube 10 and the heat insulation seal 50, so that the temperature inside the furnace is maintained at a specified level. Secondly, the integrity of the furnace tube 10 and the heat insulation seal 50 can also be improved.

[0043] exist Figure 2 In the example, the depth of the heat preservation member 40 extending into the furnace is greater than the depth of the heat insulation seal member 50 extending into the furnace. It can be understood by those skilled in the art that, through the above arrangement, the heat preservation member 40 can be placed in the furnace tube 10 to which the seal member 30 in the accommodating cavity 5101 is attached, so as to avoid the heat in the furnace from being lost due to transfer to the heat insulation member 52 through the conversion cavity 101, thereby maintaining the specified temperature of the furnace.

[0044] In yet another embodiment of the present disclosure, a reformer 100 is provided, comprising the furnace tube 10 assembly.

[0045] In summary, a furnace tube assembly and a converter thereof are provided in an embodiment of the present disclosure, wherein the furnace tube assembly includes a furnace tube and a plugging member. The furnace tube portion is inserted into the furnace chamber; the furnace tube has a conversion chamber and a pick-and-place end; the conversion chamber is at least partially formed in the furnace tube located in the furnace chamber, the pick-and-place end is located outside the furnace chamber and is formed with a pick-and-place port communicating with the conversion chamber, and the conversion chamber located in the furnace chamber is used to place a catalyst; the plugging member is detachably provided at the pick-and-place end to block the pick-and-place port. The converter includes the furnace tube assembly. Through the furnace tube assembly provided in the embodiment of the present disclosure, the user can replace the catalyst located in the converter that is expired or has reduced catalytic effect without cutting the furnace tube and the furnace chamber. To ensure the catalytic effect on the mixed gas. When replacing a new catalyst, the embodiment of the present disclosure is easy to operate, has high replacement efficiency, and low cost.

[0046] The above embodiments are merely illustrative of the principles and effects of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present disclosure shall still be covered by the protection scope of the present disclosure.

Claims

1. A furnace tube assembly, characterized in that: The furnace of the reforming furnace includes: A furnace tube, partially inserted in the furnace; the furnace tube has a conversion chamber and a pick-up and drop-out end; the conversion chamber is formed in the furnace tube located in the furnace, and the conversion chamber located in the furnace is used to place a catalyst; the pick-up and drop-out end is located outside the furnace and is formed with a pick-up and drop-out port communicating with the conversion chamber; A blocking member is detachably arranged at the access end to block the access opening.

2. The furnace tube assembly according to claim 1, characterized in that: The access end is provided with a mounting piece matched with the blocking piece, and the blocking piece is connected to the wall surface of the mounting piece facing away from the conversion end through a flange to block the access port.

3. The furnace tube assembly according to claim 2, characterized in that: A sealing member is provided between the blocking member and the mounting member.

4. The furnace tube assembly according to claim 1, characterized in that: The furnace tube assembly also includes a heat-insulating component arranged in the conversion chamber, and the heat-insulating component is located between the access port and the catalyst.

5. The furnace tube assembly according to claim 1, characterized in that: The furnace chamber forms a first installation hole for inserting the furnace pipe; a heat-insulating seal is arranged in the first installation hole, and the furnace pipe is sleeved on the heat-insulating seal.

6. The furnace tube assembly according to claim 5, characterized in that: The heat-insulating seal comprises an annular sealing shell and a heat-insulating member filled in the annular sealing shell.

7. The furnace tube assembly according to claim 5, characterized in that: The furnace tube assembly also includes a heat preservation component arranged in the conversion chamber, and the heat preservation component is located between the access port and the catalyst; the depth of the heat preservation component extending into the furnace is greater than the depth of the heat insulation sealing component extending into the furnace.

8. The furnace tube assembly according to claim 6, characterized in that: The annular sealing shell is detachably mounted on the outer wall of the furnace.

9. The furnace tube assembly according to claim 5, characterized in that: The furnace tube is fixedly sleeved on the heat insulating seal.

10. A reforming furnace, characterized in that: include: A furnace tube assembly as claimed in any one of claims 1 to 9.

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