阅读说明：本技术 防爆甲烷化转化炉 (Explosion-proof methanation reformer ) 是由 敖小强 王傲运 荣继武 张英平 于 2020-11-12 设计创作，主要内容包括：本申请提供一种防爆甲烷化转化炉,包括：三叉进气管,所述三叉进去管包括样气进气管、氢气进气管和混合进气管,所述混合进气管连接于所述样气进气管与所述氢气进气管。预混罐,所述预混罐连接于所述混合进气管。转化柱,所述转化柱的一端连接于所述预混罐,所述转化柱内填充甲烷化催化剂。样气出气管,所述样气出气管连接于所述转化柱的另一端。加热器,所述加热器相邻设置于所述预混罐与所述转化柱。加热块,所述加热器、所述预混罐与所述转化柱都置于加热块中。防爆外壳,所述防爆外壳内中空设置所述预混罐、所述加热器与所述转化柱。防爆盖板,设置于所述防爆外壳,本申请的优点是具有良好的防爆性能。(The application provides an explosion-proof methanation reformer, includes: the trident intake pipe, the trident pipe of entering includes sample gas intake pipe, hydrogen intake pipe and mixed intake pipe, mix intake-tube connection in sample gas intake pipe with the hydrogen intake pipe. Mix the jar in advance, mix jar in advance connect in mix the intake pipe. One end of the conversion column is connected to the premixing tank, and a methanation catalyst is filled in the conversion column. And the sample gas outlet pipe is connected to the other end of the conversion column. And the heater is adjacently arranged on the premixing tank and the conversion column. And the heater, the premixing tank and the conversion column are all arranged in the heating block. The explosion-proof shell, the cavity sets up in the explosion-proof shell mix jar in advance the heater with the conversion post. The explosion-proof apron set up in explosion-proof shell, the advantage of this application has good explosion-proof performance.)

1. An explosion-proof methanation reformer, comprising:

the three-fork inlet pipe comprises a sample gas inlet pipe, a hydrogen gas inlet pipe and a mixed gas inlet pipe, and the mixed gas inlet pipe is connected to the sample gas inlet pipe and the hydrogen gas inlet pipe;

the premixing tank is connected to the mixing air inlet pipe;

the gas 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;

the sample gas outlet pipe is connected to the gas outlet end of the conversion column;

the heater is adjacently arranged in the openings of the premixing tank and the U-shaped column;

the explosion-proof shell is hollow, one end of the explosion-proof shell is provided with an opening, and the premixing tank, the heater and the conversion column are arranged in the explosion-proof shell in a hollow mode;

the explosion-proof cover plate is arranged at one end of the opening of the explosion-proof shell in a sealing mode, the sample gas inlet pipe is connected with the hydrogen gas inlet pipe, the sample gas outlet pipe penetrates through the heater, and the heater is arranged on the explosion-proof cover plate.

2. The explosion-proof methanation reformer according to claim 1, further comprising a heating block disposed on the explosion-proof cover plate and located in a hollow of the explosion-proof housing, wherein the heating block accommodates the heater, the premix tank and the shift post therein.

3. The explosion-proof methanation reformer according to claim 1, wherein the heating block comprises a recess in which the heater is disposed.

4. The explosion-proof methanation reformer according to claim 3, wherein the heating block comprises a U-shaped groove, and the premixing tank and the reforming column are arranged in the U-shaped groove.

5. The explosion-proof methanation reformer according to claim 1, wherein the heater comprises a temperature sensor.

6. The explosion-proof methanation reformer according to claim 2, wherein a heat-insulating cavity is provided between the heating block and the explosion-proof housing.

7. The explosion-proof methanation reformer according to claim 6, characterized in that: the heat-insulating cavity comprises inert gas.

8. The explosion-proof methanation reformer according to claim 1, characterized in that: 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.

9. The explosion-proof methanation reformer according to claim 8, characterized in that: the explosion-proof interface is provided with a graphite gasket for sealing the explosion-proof interface.

10. The explosion-proof methanation reformer according to claim 1, characterized in that: and the explosion-proof cover plate is provided with an explosion-proof joint for connecting a power supply cable of the heater.

Technical Field

The application relates to the technical field of methanation reforming furnaces, in particular to an explosion-proof methanation reforming furnace.

Background

The equipment in the existing methanation conversion furnace has no explosion-proof performance, the temperature of the equipment is higher in the operation process, and potential safety hazards are easily caused due to the participation of hydrogen.

In this background section, the above information disclosed is only for enhancement of understanding of the background of the application and therefore it may contain prior art information that does not constitute a part of the common general knowledge of a person skilled in the art.

Disclosure of Invention

The application aims at providing an explosion-proof methanation reformer, which can realize explosion-proof performance.

According to an aspect of the application, an explosion-proof methanation reformer is provided, which comprises: the three-fork inlet pipe comprises a sample gas inlet pipe, a hydrogen gas inlet pipe and a mixed gas inlet pipe, and the mixed gas inlet pipe is connected to the sample gas inlet pipe and the hydrogen gas inlet pipe; the premixing tank is connected to the mixing air inlet pipe; the gas 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; the sample gas outlet pipe is connected to the gas outlet end of the conversion column; the heater is adjacently arranged in the openings of the premixing tank and the U-shaped column; the explosion-proof shell is hollow, one end of the explosion-proof shell is provided with an opening, and the premixing tank, the heater and the conversion column are arranged in the explosion-proof shell in a hollow mode; the explosion-proof cover plate is arranged at one end of the opening of the explosion-proof shell in a sealing mode, the sample gas inlet pipe is connected with the hydrogen gas inlet pipe, the sample gas outlet pipe penetrates through the heater, and the heater is arranged on the explosion-proof cover plate.

According to some embodiments, the explosion-proof cover plate comprises a heating block, wherein the heating block is arranged on the explosion-proof cover plate and is positioned in the hollow part of the explosion-proof shell, and the heating block accommodates the heater, the premixing tank and the conversion column.

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

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

The heater includes a temperature sensor.

According to some embodiments, a heat-insulating cavity is arranged between the heating block and the explosion-proof shell. The heat-insulating cavity comprises inert gas.

According to some embodiments, 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.

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

According to some embodiments, the explosion-proof cover plate is provided with an explosion-proof joint for connecting a power supply cable of the heater.

For a better understanding of the nature and technical content of the present application, reference should be made to the following detailed description and accompanying drawings, which are provided to illustrate the present application and are not intended to limit the scope of the present application in any way.

Drawings

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings, which are incorporated herein and constitute part of this disclosure, serve to provide a further understanding of the disclosure. The exemplary embodiments of the present disclosure and their description are provided to explain the present disclosure and not to limit the present disclosure. In the drawings:

fig. 1 shows a schematic overall structure diagram of an explosion-proof methanation reformer according to an exemplary embodiment of the application.

FIG. 2 shows a schematic structural diagram of an explosion-proof housing and an explosion-proof cover plate of an explosion-proof methanation reformer according to an exemplary embodiment of the application.

List of reference numerals:

10 trifurcate air inlet pipe

101 sample gas inlet pipe

103 hydrogen inlet pipe

105 mixed air inlet pipe

20 premixing pot

30 methanation conversion column

40 sample gas outlet pipe

50 heating apparatus

52 heating block

54 heat preservation and insulation cavity

60 explosion-proof shell

70 explosion-proof cover plate

71 explosion-proof interface

72 explosion-proof joint

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other means, components, materials, devices, or the like. In such cases, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The existing methanation conversion furnace has no explosion-proof performance, the temperature of equipment is higher in the operation process, and potential safety hazards are easily caused due to the participation of hydrogen.

According to the technical concept of the application, the explosion-proof methanation reformer realizes the explosion-proof function by arranging the explosion-proof shell, the explosion-proof cover plate, the explosion-proof interface, the explosion-proof joint, the graphite gasket seal and other components, thereby improving the safety guarantee.

The explosion-proof methanation reformer according to the embodiment of the application will be described in detail with reference to the accompanying drawings.

Fig. 1 shows a schematic overall structure diagram of an explosion-proof methanation reformer according to an exemplary embodiment of the application. FIG. 2 shows a schematic structural diagram of an explosion-proof housing and an explosion-proof cover plate of an explosion-proof methanation reformer according to an exemplary embodiment of the application.

As shown in fig. 1, the explosion-proof methanation reformer according to the exemplary embodiment of the disclosure is in a cuboid shape, and may be further provided in a cylindrical shape, and includes a trifurcate air inlet pipe, a premixing tank, a reforming column, a sample gas outlet pipe, a heater, an explosion-proof housing, and an explosion-proof cover plate. Of course, the present disclosure is not limited to their specific shape and size, but may be arbitrarily set according to experimental needs, as long as the external experimental conditions can accommodate the explosion-proof methanation reformer of the present embodiment. Referring to fig. 1, the trifurcate air inlet pipe, the sample gas outlet pipe and the heater are fixed on the explosion-proof cover plate and are arranged in the explosion-proof shell. The premixing tank is connected to the trifurcate air inlet pipe, and the trifurcate air inlet pipe is connected to the conversion column and connected to the sample gas outlet pipe.

According to some embodiments, the trifurcated inlet pipe comprises a sample gas inlet pipe, a hydrogen gas inlet pipe and a mixed inlet pipe, and the mixed inlet pipe is connected to the sample gas inlet pipe and the hydrogen gas inlet pipe.

The sample gas inlet pipe supplies sample gas or mixed gas of the sample gas and hydrogen. The hydrogen inlet pipe supplies hydrogen. The mixed gas inlet pipe supplies a mixed gas of the sample gas and the hydrogen gas.

Referring to fig. 1, the explosion-proof interface is arranged on the explosion-proof cover plate, and the explosion-proof interfaces are 3 groups and are used for connecting the sample gas inlet pipe, the hydrogen gas inlet pipe and the sample gas outlet pipe. And a graphite gasket is arranged in the explosion-proof interface and used for better sealing the explosion-proof interface, so that gas is safely introduced into and discharged out of the methanation conversion furnace.

The explosion-proof joints are arranged on the explosion-proof cover plate and are arranged into 1 group for arranging power supply cables of the electric heater so as to protect the circuit.

According to some embodiments, the premix tank is connected to the mix intake pipe. They may be screwed or glued. Of course, the present disclosure does not limit the connection manner therebetween, and all that is required is to achieve the same effects of the present disclosure. The premixing tank is used for uniformly mixing the sample gas and the hydrogen.

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

The conversion column is used for carrying out reduction reaction on the mixed gas of the sample gas and the hydrogen under the action of the methanation catalyst, and converting the mixed gas of the sample gas and the hydrogen into methane gas.

As shown in fig. 1, the sample gas inlet pipe and the hydrogen gas inlet pipe are connected with the mixed gas inlet pipe, the mixed gas inlet pipe is connected with the premixing tank to obtain the uniformly mixed gas, and then the methane gas is obtained through the reduction reaction of the methanation catalyst and is discharged from the sample gas outlet pipe.

According to some embodiments, the heater may be an electric heater, and the electric heater may be a ceramic heating sheet, which is adjacently disposed in the opening of the U-shaped column, and controlled by the PLC, for providing a desired temperature for the chemical reaction.

The heater is provided with a temperature sensor, and is also controlled by a PLC (programmable logic controller) and used for controlling the heating temperature of the electric heater so as to keep the electric heater in a safer temperature range. The power supply cable of the heater is connected with the explosion-proof cover plate, and an explosion-proof joint is arranged at the position of the explosion-proof cover plate.

According to some embodiments, the heating block has a rectangular parallelepiped shape or a cylindrical shape. Of course, the specific shape thereof is not limited in this disclosure. The heating block is connected to the explosion-proof cover plate and located in the hollow part of the explosion-proof shell to form a heat preservation and heat insulation cavity with the explosion-proof shell, and inert gas can be added in the heat preservation and heat insulation cavity, so that the heat preservation effect and the explosion-proof effect are improved.

A groove and a U-shaped groove are arranged in the heating block, the groove is located in the center of an opening of the U-shaped groove, and a heater is arranged in the groove. A premixing tank and a conversion column are arranged in the U-shaped groove. And after the heater, the premixing tank and the conversion column are positioned in the groove and the U-shaped groove, sealing the groove and the U-shaped groove, and sealing the heater, the premixing tank and the conversion column in the heating block. The heater is heated by the temperature sensor, and the heating block is heated and kept at a certain temperature. The column is catalyzed at the temperatures required for the particular experiment. Can improve the full reaction of the catalyst, and further more effectively carry out methane conversion.

Referring to fig. 2, the explosion-proof housing may be rectangular or cylindrical, and has a hollow interior and an open end. The explosion-proof shell is made of explosion-proof materials. Of course, the present disclosure is not limited to the specific shapes and materials thereof.

The explosion-proof cover plate is in a cuboid shape or a cylindrical shape, is made of explosion-proof materials and is tightly fixed above the opening of the explosion-proof shell. They can be fixed by a snap fastener. Of course, they may be secured in other ways so long as they are removably secured together so that the explosion-proof cover securely covers the explosion-proof enclosure.

The explosion-proof connector and the explosion-proof joint are arranged on the explosion-proof cover plate and used for connecting the three-fork air inlet pipe, the sample gas outlet pipe and a power supply cable of the heater.

The application provides an explosion-proof methanation reformer realizes explosion-proof function through parts such as explosion-proof shell, explosion-proof interface, explosion-proof joint, graphite gasket seal to improve the safety guarantee. The composite material is suitable for dangerous places and indoor and outdoor installation, and is particularly suitable for places such as thermal power plants, cement plants, steel plants, nonferrous metal smelting plants, paper mills, glass and plastic processing, pharmaceutical factories, petrochemical plants and the like.

Finally, it should be noted that: although the present disclosure has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.