Explosion-proof methanogen reformer

Abstract

The present application provides an explosion-proof methanogenic converter, comprising: a three-pronged air inlet pipe, wherein the three-pronged air inlet pipe comprises a sample air inlet pipe, a hydrogen air inlet pipe and a mixed air inlet pipe, wherein the mixed air inlet pipe is connected to the sample air inlet pipe and the hydrogen air inlet pipe. A premixing tank, wherein the premixing tank is connected to the mixed air inlet pipe. A conversion column, wherein one end of the conversion column is connected to the premixing tank, and the conversion column is filled with a methanogenic catalyst. A sample air outlet pipe, wherein the sample air outlet pipe is connected to the other end of the conversion column. A heater, wherein the heater is disposed adjacent to the premixing tank and the conversion column. A heating block, wherein the heater, the premixing tank and the conversion column are all placed in the heating block. An explosion-proof casing, wherein the premixing tank, the heater and the conversion column are disposed in a hollow space within the explosion-proof casing. An explosion-proof cover plate, which is disposed on the explosion-proof casing, has the advantage of having good explosion-proof performance.

Description

Technical Field

[0001] The present application relates to the technical field of methanation converters, and in particular to an explosion-proof methanation converter. Background Art

[0002] The equipment in the existing methanation converter does not have explosion-proof properties. The temperature of the equipment is high during operation, and hydrogen is involved, which can easily cause safety hazards.

[0003] In the background technology section, the above information disclosed is only used to enhance the understanding of the background of the present application and therefore it may include information that does not constitute the prior art known to a person of ordinary skill in the art. Summary of the invention

[0004] The present application aims to provide an explosion-proof methanogenic converter capable of achieving explosion-proof performance.

[0005] According to one aspect of the present application, an explosion-proof methanogenic converter is proposed, comprising: a three-pronged air inlet pipe, the three-pronged air inlet pipe comprising a sample air inlet pipe, a hydrogen air inlet pipe and a mixed air inlet pipe, the mixed air inlet pipe being connected to the sample air inlet pipe and the hydrogen air inlet pipe; a premixing tank, the premixing tank being connected to the mixed air inlet pipe; a conversion column, the air inlet end of the conversion column being connected to the premixing tank, the conversion column being a U-shaped column, and the conversion column being filled with a methanogenic catalyst; a sample air outlet pipe, the sample air outlet pipe connected to the gas outlet end of the conversion column; a heater, the heater is adjacently arranged in the opening of the premixing tank and the U-shaped column; an explosion-proof shell, the interior of the explosion-proof shell is hollow and one end is open, the premixing tank, the heater and the conversion column are hollowly arranged in the explosion-proof shell; an explosion-proof cover plate, the explosion-proof cover plate is sealingly installed at one end of the opening of the explosion-proof shell, the sample gas inlet pipe, the hydrogen inlet pipe, the sample gas outlet pipe and the heater pass through and are arranged on the explosion-proof cover plate.

[0006] According to some embodiments, a heating block is further included. The heating block is disposed on the explosion-proof cover plate and is located in the hollow of the explosion-proof housing. The heater, the premixing tank and the conversion column are accommodated in the heating block.

[0007] The heating block comprises a groove, and the heater is arranged in the groove.

[0008] The heating block comprises a U-shaped groove, and the premixing tank and the conversion column are arranged in the U-shaped groove.

[0009] The heater includes a temperature sensor.

[0010] According to some embodiments, a heat-insulating cavity is provided between the heating block and the explosion-proof housing, and the heat-insulating cavity contains an inert gas.

[0011] According to some embodiments, an explosion-proof interface is provided on the explosion-proof cover plate, which is used to connect the sample gas inlet pipe, the hydrogen inlet pipe and the sample gas outlet pipe.

[0012] The explosion-proof interface is provided with a graphite gasket for sealing the explosion-proof interface.

[0013] According to some embodiments, the explosion-proof cover is provided with an explosion-proof connector for connecting a power supply cable of the heater.

[0014] To further understand the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, this description and drawings are only used to illustrate the present application and do not impose any limitations on the scope of protection of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following is a detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings. Here, the drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0016] Figure 1 A schematic diagram of the overall structure of an explosion-proof methanation reformer according to an exemplary embodiment of the present application is shown.

[0017] Figure 2 A schematic structural diagram of an explosion-proof housing and an explosion-proof cover plate of an explosion-proof methanation converter according to an exemplary embodiment of the present application is shown.

[0018] List of reference numerals:

[0019] 10 Three-pronged intake pipe

[0020] 101 Sample gas inlet pipe

[0021] 103 Hydrogen intake pipe

[0022] 105 Mixing intake pipe

[0023] 20 Premix tank

[0024] 30 Methanation conversion column

[0025] 40 Sample gas outlet pipe

[0026] 50 Heater

[0027] 52 Heating Block

[0028] 54 Insulation cavity

[0029] 60 explosion-proof housing

[0030] 70 explosion-proof cover

[0031] 71 Explosion-proof interface

[0032] 72 explosion-proof connector DETAILED DESCRIPTION

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar parts, and thus their repeated description will be omitted.

[0034] The described features, structures or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of these specific details, or other modes, components, materials, devices or the like may be adopted. In these cases, known structures, methods, devices, implementations, materials or operations will not be shown or described in detail.

[0035] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0036] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0037] The existing methanation converters do not have explosion-proof properties. The temperature of the equipment is high during operation, and hydrogen is involved, which can easily cause safety hazards.

[0038] According to the technical concept of the present application, the explosion-proof methanation converter of the present application realizes the explosion-proof function by providing explosion-proof casing, explosion-proof cover, explosion-proof interface, explosion-proof joint and graphite gasket seal and other components, thereby improving safety assurance.

[0039] The explosion-proof methanation converter according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0040] Figure 1 A schematic diagram of the overall structure of an explosion-proof methanation reformer according to an exemplary embodiment of the present application is shown. Figure 2 A schematic structural diagram of an explosion-proof housing and an explosion-proof cover plate of an explosion-proof methanation converter according to an exemplary embodiment of the present application is shown.

[0041] like Figure 1 As shown, the explosion-proof methanogenic converter according to the exemplary embodiment of the present disclosure is in the shape of a rectangular parallelepiped, and can also be set to a cylindrical shape, including a three-pronged air inlet pipe, a premixing tank, a conversion column, a sample gas outlet pipe, a heater, an explosion-proof housing, and an explosion-proof cover. Of course, the present disclosure does not limit their specific shapes and sizes, but can be arbitrarily set according to experimental needs, as long as the external experimental conditions can accommodate the explosion-proof methanogenic converter of this embodiment. Figure 1 It can be seen that the three-pronged air inlet pipe, the sample gas outlet pipe and the heater are fixed to the explosion-proof cover plate and installed in the explosion-proof housing. The premix tank is connected to the three-pronged air inlet pipe, and the three-pronged air inlet pipe is connected to the conversion column and connected to the sample gas outlet pipe.

[0042] According to some embodiments, the three-fork air intake pipe includes a sample air intake pipe, a hydrogen air intake pipe and a mixed air intake pipe, and the mixed air intake pipe is connected to the sample air intake pipe and the hydrogen air intake pipe.

[0043] The sample gas inlet pipe supplies sample gas or a mixture of sample gas and hydrogen. The hydrogen inlet pipe supplies hydrogen. The mixed inlet pipe supplies a mixture of sample gas and hydrogen.

[0044] Ginseng Figure 1 It can be seen that the explosion-proof interface is set on the explosion-proof cover plate, and the explosion-proof interface is set to 3 groups, which are used to connect the sample gas inlet pipe, the hydrogen inlet pipe and the sample gas outlet pipe. A graphite gasket is set in the explosion-proof interface, which is used to better seal the explosion-proof interface, so that the gas can be safely passed into and out of the methanogenic converter.

[0045] The explosion-proof joint is arranged on the explosion-proof cover plate, and the explosion-proof joint is set as 1 group, which is used to lay the power supply cable of the electric heater so as to protect the line.

[0046] According to some embodiments, the premixing tank is connected to the mixed air intake pipe. They can be connected by threading or bonding. Of course, the present disclosure does not limit the connection method between them, as long as it can achieve the same effect as the present disclosure. The premixing tank is used for uniform mixing of the sample gas and hydrogen.

[0047] According to some embodiments, the conversion column is generally a U-shaped column, the gas inlet end is connected to the premixing tank, and the gas outlet end is connected to the sample gas outlet pipe. The middle part of the U-shaped column is filled with a methanation catalyst.

[0048] The conversion column is used for the mixed gas of sample gas and hydrogen to undergo a reduction reaction under the action of a methanation catalyst, thereby converting the mixed gas of sample gas and hydrogen into methane gas.

[0049] like Figure 1 As shown, the sample gas inlet pipe and the hydrogen inlet pipe are connected to the mixed inlet pipe, and the mixed inlet pipe is connected to the premixing tank to obtain a uniformly mixed gas, and then through the reduction reaction of the methanation catalyst, methane gas is obtained and discharged from the sample gas outlet pipe.

[0050] According to some embodiments, the heater may be an electric heater, and the electric heater may be a ceramic heating plate, which is adjacently disposed in the opening of the U-shaped column and is controlled by PLC to provide the required temperature for the chemical reaction.

[0051] A temperature sensor is installed on the heater, which is also controlled by PLC to control the heating temperature of the electric heater so that it is kept within a safer temperature range. An explosion-proof connector is provided at the place where the power supply cable of the heater is connected to the explosion-proof cover.

[0052] According to some embodiments, the heating block is in a rectangular or cylindrical shape. Of course, the specific shape is not limited in the present disclosure. The heating block is connected to the explosion-proof cover plate and is located in the hollow of the explosion-proof shell, forming a heat-insulating cavity with the explosion-proof shell. Inert gas can be added to the heat-insulating cavity to improve the heat-insulating effect and explosion-proof effect.

[0053] A groove and a U-shaped groove are provided in the heating block. The groove is located at the opening center of the U-shaped groove, and a heater is provided in the groove. A premixing tank and a conversion column are provided in the U-shaped groove. After the heater, the premixing tank and the conversion column are located in the groove and the U-shaped groove, the groove and the U-shaped groove are sealed, so that the heater, the premixing tank and the conversion column are sealed in the heating block. The heater is heated by a temperature sensor and the heating block is heated at the same time, and a certain temperature is maintained. The conversion column performs catalytic action at a temperature required for a specific experiment. The full reaction of the catalyst can be improved, thereby more effectively converting methane.

[0054] Ginseng Figure 2 The explosion-proof housing is in a rectangular shape or a cylindrical shape, and is hollow inside and has an opening at one end. The explosion-proof housing is made of explosion-proof materials. Of course, the specific shape and material are not limited in the present disclosure.

[0055] The explosion-proof cover is in the shape of a cuboid or a cylinder. It is made of explosion-proof material and is tightly fixed above the opening of the explosion-proof housing. They can be fixed by snaps. Of course, they can also be fixed in other ways, as long as they can be detachably fixed together so that the explosion-proof cover can firmly cover the explosion-proof housing.

[0056] The explosion-proof interface and explosion-proof connector provided on the explosion-proof cover are used to connect the three-pronged air inlet pipe, the sample gas outlet pipe and the power supply cable of the heater.

[0057] The explosion-proof methanogenic converter provided by the present application realizes the explosion-proof function through explosion-proof housing, explosion-proof interface, explosion-proof joint, graphite gasket seal and other components, thereby improving safety assurance. It is suitable for installation in hazardous places and indoors and outdoors, especially for thermal power plants, cement plants, steel plants, non-ferrous metal smelters, paper mills, glass, plastic processing, pharmaceutical plants, petrochemical plants and other places.

[0058] Finally, it should be noted that the above is only an example embodiment of the present disclosure and is not intended to limit the present disclosure. Although the present disclosure is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An explosion-proof methanogenic reformer, characterized in that: include: A three-fork air intake pipe, the three-fork air intake pipe comprising a sample air intake pipe, a hydrogen air intake pipe and a mixed air intake pipe, the mixed air intake pipe being connected to the sample air intake pipe and the hydrogen air intake pipe; A premixing tank connected to the mixing intake pipe; A conversion column, wherein the air inlet end of the conversion column is connected to the premixing tank, the conversion column is a U-shaped column, and a methanation catalyst is filled in the conversion column; A sample gas outlet pipe, the sample gas outlet pipe is connected to the gas outlet end of the conversion column; A heater, the heater being disposed adjacent to the premixing tank and the opening of the U-shaped column; An explosion-proof housing, wherein the interior of the explosion-proof housing is hollow and one end is open, and the premixing tank, the heater and the conversion column are arranged in the hollow interior of the explosion-proof housing; An explosion-proof cover plate, the explosion-proof cover plate is sealed and installed at one end of the opening of the explosion-proof housing, the sample gas inlet pipe, the hydrogen gas inlet pipe, the sample gas outlet pipe and the heater pass through and are arranged on the explosion-proof cover plate; A heating block, which is disposed on the explosion-proof cover plate and is located in the hollow of the explosion-proof housing, and in which the heater, the premixing tank and the conversion column are accommodated; The heating block comprises a groove and a U-shaped groove, and the heater is arranged in the groove; The premixing tank and the conversion column are arranged in the U-shaped tank; The explosion-proof cover plate is provided with an explosion-proof interface for connecting the sample gas inlet pipe, the hydrogen gas inlet pipe and the sample gas outlet pipe.

2. The explosion-proof methanogenic converter according to claim 1, characterized in that: The heater includes a temperature sensor.

3. The explosion-proof methanogenic converter according to claim 1, characterized in that: A heat-insulating cavity is provided between the heating block and the explosion-proof housing.

4. The explosion-proof methanogenic converter according to claim 3, characterized in that: The thermal insulation cavity includes an inert gas.

5. The explosion-proof methanogenic converter according to claim 1, characterized in that: The explosion-proof interface is provided with a graphite gasket for sealing the explosion-proof interface.

6. The explosion-proof methanogenic converter according to claim 1, characterized in that: The explosion-proof cover plate is provided with an explosion-proof connector for connecting the power supply cable of the heater.

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