CN112062087B - Reactor and manufacturing method thereof - Google Patents
Reactor and manufacturing method thereof Download PDFInfo
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- CN112062087B CN112062087B CN201910874813.6A CN201910874813A CN112062087B CN 112062087 B CN112062087 B CN 112062087B CN 201910874813 A CN201910874813 A CN 201910874813A CN 112062087 B CN112062087 B CN 112062087B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
- B01J8/067—Heating or cooling the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/08—Casting in, on, or around objects which form part of the product for building-up linings or coverings, e.g. of anti-frictional metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/248—Moulding mineral fibres or particles bonded with resin, e.g. for insulating or roofing board
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1217—Alcohols
- C01B2203/1223—Methanol
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00439—Physico-chemical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00465—Heat conducting materials
Abstract
The application discloses a reactor and a manufacturing method thereof, wherein the manufacturing method comprises the following steps: preparing at least one flow path pipe, at least one part of which is non-linearly extended; and filling a heat transfer medium material in the space outside the flow path pipe to prepare the reactor. The technical scheme of the application breaks through the limitation of the traditional manufacturing method. According to the technical scheme of the application, the reactor with the flow passage pipes which extend in a non-linear mode and are embedded in the heat transfer medium material can be manufactured, and the limitation that a straight flow passage can only be formed in the traditional manufacturing method is broken through.
Description
Technical Field
The invention relates to the field of chemical industry, in particular to a reactor and a manufacturing method thereof.
Background
In the chemical field, reactors for achieving a desired temperature distribution field by managing the process of transfer of thermal energy have wide application. Thus, the design, production and manufacture of the reactor is very important to achieve the overall function of the device or system.
For example, as environmental protection requirements become stricter, the importance of hydrogen energy as a clean energy source is also increasing. For example, for the field of new energy vehicles, there is an increasing need to further develop a hydrogen fuel cell as a power source in addition to the conventional lithium ion battery as a power source.
In a hydrogen fuel cell, chemical energy stored in hydrogen gas and chemical energy stored in an oxidant (typically oxygen gas) can be directly and efficiently converted into electrical energy through electrode reactions without generating any environmental pollutants. Moreover, hydrogen fuel cells have a wide range of applications in various industrial fields. Therefore, the production of hydrogen as a base fuel is a first problem to be solved. In the 80's of the 20 th century, a Methanol Steam Reforming of methane (SMR) process has emerged in which Methanol and desalted water are used as raw materials and catalytically converted via a catalyst into reformed gas containing mainly hydrogen and carbon dioxide at a temperature range of 200 to 300 ℃, the overall reaction of which is as follows:
CH3OH+H2O→CO2+3H2 ΔH＝50.7kJ/mol
the reaction is endothermic and a heat source must be provided to meet the heat required for the reaction. Meanwhile, other side reactions also occur during the methanol reforming process, as shown below:
CH3OH＝CO+2H2
CO+H2O＝CO2+H2
2CH3OH＝CH3OCH3+H2O
CO+3H2＝CH4+H2O
thus, the product gas from methanol reforming is depleted of about 70% of H2In addition, it may contain about 20% CO2Approximately 1.0% CO, steam and traces of incompletely converted CH3OH and the like. Wherein CO can cause the catalyst of the fuel cell to be poisoned and deactivated, so the content of CO must be strictly controlled.
To achieve this, the reforming hydrogen production reactor needs to be designed and manufactured with a high degree of uniformity of temperature distribution in different catalytic reaction regions to avoid the increase of CO content due to the occurrence of hot spots. This is an important principle that reforming hydrogen production reactors need to follow.
CN102020245A discloses a manufacturing method of reforming hydrogen production reactor: namely, a three-dimensional blank of a single heat transfer medium (usually a metal material such as aluminum, copper or an alloy material) is drilled to form a plurality of cells in the three-dimensional blank, and then a part of the cells are closed to form a pre-designed flow path. The advantage of this manufacturing process is that the use of a heat transfer medium with a high thermal conductivity optimizes the heat transfer in the methanol reforming process. However, this manufacturing method has a drawback in that the holes formed by the drilling method can only be extended straight, and the adjacent holes can only be extended in parallel, so that the reforming hydrogen production reactor with a non-straight flow path optimized to further improve the temperature uniformity cannot be designed and manufactured due to the structural limitation.
It follows that the conventional reactor has the limitation that a straight extended flow path can only be used or to a large extent, which is a technical problem to be solved in the art.
Disclosure of Invention
In view of the above, the present application provides a reactor and a method for manufacturing the same, so as to overcome the limitation that the conventional reactor can only or mostly adopt a straight extended flow path.
According to an aspect of the present application, a method of manufacturing a reactor is presented, wherein the method of manufacturing comprises: preparing at least one flow path pipe, at least one part of which is non-linearly extended; and filling a heat transfer medium material in the space outside the flow path pipe to prepare the reactor.
Preferably, the filling of the heat transfer medium material in the space outside the flow path pipe includes: and filling a non-metal powdery heat transfer medium material into the space outside the flow passage pipe, wherein the heat transfer medium material is one or more.
Preferably, the manufacturing method comprises: the at least one flow path pipe is arranged in a mold in advance, the flowable non-metal powdery heat transfer medium material is injected into the mold, and the non-metal powdery heat transfer medium material is filled in the mold in a compaction and/or bonding mode.
Preferably, the step of injecting the flowable non-metallic powdered heat transfer medium material into the mold comprises: and simultaneously or sequentially injecting a plurality of different powdered heat transfer medium materials into the mold.
Preferably, the non-metal powdered heat transfer medium material is doped with a binder.
Preferably, the port of the at least one flow conduit is exposed to the outside of the mould during compaction and/or bonding.
Preferably, the non-metallic powdered heat transfer medium material comprises graphite and/or alumina.
Preferably, the filling of the heat transfer medium material in the space outside the flow path pipe includes: the at least one flow conduit is cast therein with a heat transfer medium material of a metal in a molten state, the metal being selected from the group consisting of gallium, gallium alloys, aluminum alloys, copper and copper alloys.
Preferably, the step of casting the at least one flow path pipe therein with the heat transfer medium material of the metal in a molten state includes: and pre-arranging the at least one flow path pipe in a mold, and injecting the heat transfer medium material in a molten state into the mold.
Preferably, the step of casting the at least one flow path pipe therein with the heat transfer medium material of the metal in a molten state includes: the at least one flow path tube is immersed in the heat transfer medium material in a molten state in a state where the port is at least partially closed.
Preferably, the manufacturing method includes filling a material of the heat transfer medium material into a furnace to obtain the heat transfer medium material of the metal in a molten state, and injecting the heat transfer medium material in the molten state into the mold in a state where a temperature of the furnace is set to be higher than a melting point of the heat transfer medium material.
Preferably, the step of injecting the heat transfer medium material of the metal in a molten state into the mold includes: the heat transfer medium material in a molten state is injected into the mold by gravity or pressure.
Preferably, the step of injecting the heat transfer medium material of the metal in a molten state into the mold includes: and simultaneously or sequentially injecting a plurality of different heat transfer medium materials in a molten state into the mold.
Preferably, the port of the at least one flow path tube is exposed to the outside of the mold during casting.
Preferably, the flow path pipe is made of a non-metallic material selected from the group consisting of aluminum, aluminum alloy, copper alloy and stainless steel, or a metallic material selected from the group consisting of graphite, silica and alumina.
Preferably, the shape of the flow path pipe can be selected from any one of a straight pipe, a flat bent pipe, or a pipe continuously extending in a curved manner in a three-dimensional space.
Preferably, the connection mode between the flow path pipes can be selected from any one of welding, screw connection, flange connection, clamping sleeve connection or clamping hoop connection.
Preferably, at least a portion of the flow path tube is curved in a plane or continuously curved in a three-dimensional space, and preferably at least one catalyst is placed in the flow path tube through a port of the flow path tube.
Preferably, at least a portion of the flow path tube has a helical structure or a multiple helical structure.
Preferably, the mold can be selectively designed as a wood mold, a wax mold, a lost foam, a clay/sand mold, a ceramic mold or a metal mold.
Preferably, the manufacturing method further comprises at least one of the steps of shaping, polishing, corrosion prevention and external arrangement of an insulating layer for the manufactured reactor.
Preferably, all of the heat transfer medium materials in the space outside the flow path pipe are heat-conducting medium materials, or the heat transfer medium materials in the space outside the flow path pipe comprise heat-conducting medium materials and heat-insulating medium materials; preferably, the thermal conductivity of the heat-conducting medium material is not less than 50W/m.K.
Preferably, the reactor is a reforming hydrogen production reactor.
The present application also provides a reactor, wherein the reactor is produced by the above-described manufacturing method, and the reactor is preferably a reforming hydrogen production reactor. The reforming hydrogen production reactor comprises a combustion area, a heat exchange area, a reforming reaction area and a carbon monoxide elimination area, the reforming hydrogen production reactor comprises a heat transfer medium material and at least one flow path pipe embedded in the heat transfer medium material, at least one part of the flow path pipe extends in a non-linear mode, at least one catalyst is preferably filled in the flow path pipe, and under the preferable condition, the overall shape of the reforming hydrogen production reactor is or is close to a cube, a cuboid, a cylinder, a sphere or an ellipsoid.
According to the technical scheme of the application, the reactor with the flow passage pipes which extend in a non-linear mode and are embedded in the heat transfer medium material can be manufactured, and the limitation that a straight flow passage can only be formed in the traditional manufacturing method is broken through.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Detailed Description
In addition, the features of the embodiments and the respective embodiments in the present application may be combined with each other without conflict.
The technical solution of the present application will be described and explained in detail below. According to an aspect of the present application, there is provided a method of manufacturing a reactor, wherein the method includes: preparing at least one flow path pipe, at least one part of which is non-linearly extended; and filling a heat transfer medium material in the space outside the flow path pipe to prepare the reactor.
In the present application, a "reactor" is a device capable of chemical reaction, and is usually accompanied by heat transfer, heat exchange, and other processes, and management of heat distribution can be achieved through design and arrangement of the flow path pipe and the heat transfer medium material. For example, a reforming hydrogen production reactor.
As described above, in the conventional manufacturing method of the reactor, the three-dimensional blank member is first provided, and the flow path is formed by removing a material by machining such as drilling, so that the flow path extends substantially straight. This structural feature is a direct result of conventional manufacturing methods. In order to further improve the temperature uniformity of a reactor (such as a reforming hydrogen production reactor) during operation, completely different technical schemes for the flow path arrangement mode and the spatial structure thereof are often required to be provided, but due to the limitation of the traditional manufacturing method, a design scheme capable of obtaining good temperature uniformity in the design level cannot be manufactured and realized.
The application is a solution for breaking through the traditional manufacturing method.
According to the technical scheme, the flow path pipe is firstly prepared, and then the heat transfer medium material is filled in the space outside the flow path pipe, so that the solid-structure reactor with the flow path pipe embedded in the heat transfer medium material is realized. During operation, a fluid having a predetermined temperature may flow and react inside the flow path tube while heat is transferred through a heat transfer medium material filled outside the flow path tube.
When the reactor is in operation, reactants or material flows or fluids flow in the flow paths formed by the flow path pipes, and in order to achieve high temperature uniformity, a heat transfer medium material between the flow paths needs to be arranged as required. According to different working conditions, the heat transfer medium materials in the external space of the flow path pipe can be all heat conduction medium materials, or the heat transfer medium materials in the external space of the flow path pipe comprise heat conduction medium materials and heat insulation medium materials, namely, the heat conduction medium materials are arranged at certain positions, and the heat insulation medium materials are arranged at certain positions, so that the distribution of heat in the reactor is controlled. Preferably, the thermal conductivity of the thermal conductive medium material having good thermal conductivity is not less than 50W/m.K. Preferably, the heat conductive medium material has a thermal conductivity of not less than 60W/mK, more preferably not less than 65W/mK, still more preferably not less than 70W/mK. The heat transfer medium material as the heat transfer medium material may be a metallic material selected from the group consisting of gallium, gallium alloy, aluminum alloy, copper and copper alloy, or a non-metallic material, which may be graphite or alumina. The insulating medium material can be glass fiber, asbestos, rock wool, silicate, aerogel felt or vacuum plate.
According to the technical scheme of the application, the traditional processing mode of reducing materials through cutting and the like is abandoned, and the processing mode of increasing materials is utilized instead. The limitation of the conventional method that the flow path extends substantially straight can be broken.
In the technical solution of the present application, filling the heat transfer medium material in the external space of the flow path pipe may be achieved in various ways.
First, heat transfer medium material for metal material
According to a preferred embodiment of the present application, the at least one flow path tube may be cast therein with a heat transfer medium material of a metal in a molten state to produce a reactor. The metal used as the heat conductive medium material is selected from the group consisting of gallium, gallium alloy, aluminum alloy, copper, and copper alloy.
In this embodiment, the at least one flow path tube is cast therein with the heat transfer medium material of the metal in a molten state, so that after the casting is completed, the space outside the flow path tube is filled with the heat transfer medium material, and the flow path tube is embedded in the heat transfer medium material. In the technical scheme, the flow path structure in the reactor is realized by preparing the flow path pipe in advance and then casting, so that the limitation that a straight flow path can only be formed by the traditional manufacturing method is broken through, various complicated flow path structures can be optimally designed according to specific working conditions, and the design and manufacturing process of the reactor are improved to a higher level.
The designer can obtain the optimized design parameters of the reactor, especially the flow path structure parameters of the reactor, by means of engineering simulation according to the specific working conditions of the reactor to be developed. After the flow path structure parameters are obtained, the parameters of the flow path pipe such as the arrangement mode, the space extension mode, the pipe diameter and the like can be designed. The limitation and limitation of the traditional manufacturing method can be completely eliminated in the process of designing the flow path structure of the reactor.
The at least one flow path tube is cast therein with a heat transfer medium material of the metal in a molten state. The casting can be accomplished in at least two ways.
For example, the at least one flow path tube may be immersed in the heat transfer medium material in a molten state in a state where the port (end opening) is at least partially closed. After cooling is completed, the excess is cut off, if necessary by machining, to produce a reactor.
For another example, the at least one flow path pipe may be previously placed in a mold, and then the heat transfer medium material in a molten state may be injected into the mold.
Preferably, the heat transfer medium material or the component materials of the heat transfer medium material are prepared, and may be a powder material, a granular material or a block material. The prepared material is then filled into a furnace, and the temperature is adjusted to melt the material of the heat transfer medium material to obtain the heat transfer medium material in a molten state. Then, the heat transfer medium material in a molten state is injected into the above-mentioned mold to realize casting of the flow path pipe located inside the mold therein, that is, in the prepared reactor.
Preferably, in the casting, the heat transfer medium material in a molten state is injected into the mold in a state where a furnace temperature is set higher than a melting point of the heat transfer medium material. Since the temperature at which the heat transfer medium material is melted at this time is higher than the melting point of the heat transfer medium material, the heat transfer medium material in a molten state can be made to have good fluidity. Further, in a preferable case, the heat transfer medium material in a molten state may be injected into the mold by using gravity or pressure.
During casting, preferably, a port of the at least one flow path tube is exposed to the outside of the mold to prevent the heat transfer medium material in a molten state from being injected into the inside of the flow path tube. Alternatively, the port of the flow pipe may be closed in advance, and after the casting is completed, the port of the flow pipe may be opened by machining.
The casting heat transfer medium material can be one or more, so that the prepared reforming hydrogen production reactor has heat transfer medium materials with different heat conductivities, thereby being beneficial to obtaining a more uniform temperature field. Therefore, in a preferred case, the step of injecting the heat transfer medium material in a molten state into the mold includes: and simultaneously or sequentially injecting a plurality of different heat transfer medium materials in a molten state into the mold. This may be achieved by selecting different configurations of the mould or by selecting different casting steps, for example, multiple mould cavities may be provided in the mould.
After cooling is completed, the prepared reactor is taken out of the mold. When needed, the reactor can be subjected to any one of shaping, polishing, corrosion prevention and external covering of a heat-insulating layer. The mold may be any of various types suitable for casting, such as a wood mold, a wax mold, a lost foam mold, a clay/sand mold, a ceramic mold, or a metal mold.
In the above-described working condition, the heat insulating medium material may be previously provided in the space outside the flow path pipe, and embedded together with the heat conducting medium material when casting is performed.
Secondly, for the heat transfer medium material of the non-metallic material
The heat transfer medium material used as the heat transfer medium material in the form of a non-metallic powder may include graphite and/or alumina, etc., and preferably a non-metallic material satisfying a thermal conductivity of not less than 50W/m · K is applicable. In this case, the filling of the heat transfer medium material, which may be one or more, in the space outside the flow path pipe may be achieved by powder molding.
In this embodiment, the manufacture of the reactor is similarly achieved by adding material rather than removing it. After the non-metal powder-like heat transfer medium material is filled in the space outside the flow passage pipe, the space outside the flow passage pipe is filled with the heat transfer medium material, and the flow passage pipe is embedded in the heat transfer medium material. In the technical scheme, the flow path structure in the reactor is realized by firstly preparing the flow path pipe and then performing powder molding, so that the limitation that a straight flow path can only be formed by the traditional manufacturing method is broken through, various complicated flow path structures can be optimally designed according to specific working conditions, and the design and manufacturing process of the reactor are improved to a higher level.
The designer can obtain the optimized design parameters of the reactor, especially the flow path structure parameters of the reactor, by means of engineering simulation according to the specific working conditions of the reactor to be developed. After the flow path structure parameters are obtained, the parameters of the flow path pipe such as the arrangement mode, the space extension mode, the pipe diameter and the like can be designed. The limitation and limitation of the traditional manufacturing method can be completely eliminated in the process of designing the flow path structure of the reactor.
The powder forming method can refer to the existing technical measures. Preferably, the manufacturing method includes: the at least one flow path pipe is arranged in a mold in advance, the flowable non-metal powdery heat transfer medium material is injected into the mold, and the non-metal powdery heat transfer medium material is filled in the mold in a compaction and/or bonding mode. Thus, the forming of the one or more non-metallic powders may be achieved within the mould, thereby embedding the at least one flow path tube therein.
The step of injecting a flowable non-metallic powdered heat transfer medium material into the mold comprises: and simultaneously or sequentially injecting a plurality of different powdered heat transfer medium materials into the mold. Different powdered materials can have different heat conductivity coefficients, so that the temperature distribution of the prepared reactor under the working condition can be controlled by selecting a plurality of different heat transfer medium materials.
According to different powder materials, the powder material can be formed in a pressing mode, a bonding mode or a pressing and bonding mode. Preferably, the non-metal powdered heat transfer medium material is doped with a binder, which may be a solid binder or a liquid binder, and is more favorable for bonding the powder particles during the pressing process.
Similarly, during compaction and/or bonding, the ports of the at least one flow path tube are exposed to the exterior of the mold to prevent the heat transfer medium material from being injected into the interior of the flow path tube. Alternatively, the flow pipe port may be closed in advance.
After the molding is completed, the prepared reactor is taken out of the mold. When needed, the reactor can be subjected to any one of shaping, polishing, corrosion prevention and external covering of a heat-insulating layer. The mold may be any of various types suitable for casting, such as a wood mold, a wax mold, a lost foam mold, a clay/sand mold, a ceramic mold, or a metal mold.
In the above-described working condition, the heat insulating medium material may be powder-molded together with the heat conducting medium material at a predetermined position in the space outside the flow path pipe, or may be previously provided at a predetermined position in the space outside the flow path pipe.
Preparation of flow path pipe
To prepare the flow conduit, it may be formed using at least one tubular member made of a high temperature resistant material. For example, a fully prefabricated tubular member may be utilized as a flow conduit; or preferably, a plurality of tubular members having the same or different shape or material are selected, and the plurality of tubular members are connected to each other to form the flow path pipe. The number of the flow path pipes can be one or more, and the flow path pipes can be designed according to specific working conditions. In the technical solution of the present application, at least a part of the flow path pipe is allowed to extend non-linearly, and may be curved in a plane, or may be continuously curved and extended in a three-dimensional space, for example. As a preferred embodiment, at least a portion of the flow-path tube has a spiral structure or a multi-spiral structure, and the non-linear extension portion of the flow-path tube is particularly suitable for a heat exchange zone in which heat exchange is carried out in the reforming hydrogen production reactor.
The above-mentioned flow path pipe may be selected from various suitable materials, and may be a high temperature resistant non-metallic material such as graphite, silica and alumina, but is preferably selected from a high temperature resistant metallic material selected from the group consisting of aluminum, aluminum alloy, copper alloy and stainless steel.
The shape of the flow path pipe can be selected from any one of a straight pipe, a plane bent pipe (a bent pipe in the same plane), or a pipe which continuously extends in a curved manner in a three-dimensional space. The flow path tube is formed by the connection of a plurality of differently shaped tubular members. The connection between the flow conduits may be achieved in a number of ways, for example by any one of welding, screwing, flange connection, ferrule connection or clip connection. According to the working condition, a sealing element can be arranged at the connection position of the flow path pipe. In addition, the geometric parameters such as the inner diameter of the flow path pipe can be designed and selected according to the working conditions.
Preferably, at least one catalyst is placed within the flow tube through a port of the flow tube for performing different functions and thus for performing different chemical reactions. For example, needlesCorresponding catalysts such as Pt/Al are selected for catalytic combustion, reforming hydrogen production, CO selective methanation, CO selective oxidation and the like2O3、Pd/Al2O3、Pt-Co/Al2O3、CuOZnO/Al2O3、Pt/Al2O3、Pd/Al2O3Nickel-based catalysts, and the like.
The method for manufacturing the reactor proposed in the present application is described above in detail. It is to be noted that the flow path pipe is embedded in the reactor, and when a substance such as a fluid in the flow path pipe flows, heat transfer and heat management can be achieved by the flow path pipe and a heat transfer medium material outside the flow path pipe.
The reactor manufacturing method is particularly suitable for manufacturing reforming hydrogen production reactors in the field of hydrogen energy. That is, in a preferred case, the above reactor may be a reforming hydrogen production reactor. The above-described technical solutions relating to the reactor manufacturing method are fully applicable to the manufacture of reforming hydrogen production reactors. Accordingly, a method of manufacturing a reforming hydrogen production reactor is also disclosed.
Fourth, the reactor
The method of manufacturing the reactor provided in the present application is described in detail above. In addition, the application also claims a reactor prepared according to the manufacturing method. The reactor is prepared by the manufacturing method, and the reactor is preferably a reforming hydrogen production reactor.
In a preferred embodiment of the present application, the overall shape of the reforming hydrogen production reactor is or approximates to a cube, cuboid, cylinder, sphere or ellipsoid. However, the present application is not limited thereto, and may have other suitable three-dimensional shapes.
The reforming hydrogen production reactor comprises a combustion zone, a heat exchange zone, a reforming reaction zone and a carbon monoxide elimination zone, comprises a heat transfer medium material and at least one flow path pipe embedded in the heat transfer medium material, wherein at least one part of the flow path pipe extends in a non-linear mode, and at least one catalyst is filled in the flow path pipe.
Compared with the traditional reforming hydrogen production reactor, the method is basically not very different from the traditional reforming hydrogen production reactor in appearance. However, with such an integrated reforming hydrogen production reactor, a spatially continuous curved shape of the internal flow path structure, such as a spiral, double or multiple spiral, serpentine, etc., can only be achieved with the solution of the present application. This is because the solution of the present application allows the design and manufacture of reforming hydrogen production reactors to be completely free of the limitation of machining with only drilling.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.
In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.
Claims (22)
1. A method of manufacturing an integrated reforming hydrogen production reactor, wherein the method of manufacturing comprises:
preparing at least one flow path tube, at least a portion of which is non-linearly extended, to allow a fluid to flow and react within the flow path tube;
filling a heat transfer medium material in a space outside the flow path pipe, wherein the heat transfer medium material in the space outside the flow path pipe comprises a heat conduction medium material and a heat insulation medium material;
placing at least one catalyst within the flow tube through a port of the flow tube to produce the integrated reforming hydrogen production reactor.
2. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 1, wherein the filling of the heat transfer medium material in the space outside the flow path tube comprises:
and filling a non-metal powdery heat transfer medium material into the space outside the flow passage pipe, wherein the heat transfer medium material is one or more.
3. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 2, wherein the method of manufacturing comprises: the at least one flow path pipe is arranged in a mold in advance, the flowable non-metal powdery heat transfer medium material is injected into the mold, and the non-metal powdery heat transfer medium material is filled in the mold in a compaction and/or bonding mode.
4. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 3, wherein the step of injecting a flowable non-metallic powdered heat transfer medium material into the mold comprises: and simultaneously or sequentially injecting a plurality of different powdered heat transfer medium materials into the mold.
5. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 3, wherein the non-metallic powdered heat transfer media material is doped with a binder.
6. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 3, wherein the ports of the at least one flow path tube are exposed to the outside of the mold during the compaction and/or bonding process.
7. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 3, wherein the non-metallic powdered heat transfer media material comprises graphite and/or alumina.
8. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 1, wherein the filling of the heat transfer medium material in the space outside the flow path tube comprises:
the at least one flow conduit is cast therein with a heat transfer medium material of a metal in a molten state, the metal being selected from the group consisting of gallium, gallium alloys, aluminum alloys, copper and copper alloys.
9. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 8, wherein the step of casting the at least one flow path tube therein with a heat transfer medium material of a metal in a molten state comprises: and pre-arranging the at least one flow path pipe in a mold, and injecting the heat transfer medium material in a molten state into the mold.
10. The manufacturing method of an integrated reforming hydrogen production reactor according to claim 9, wherein the manufacturing method comprises charging a charge of heat transfer medium material into a furnace to obtain a heat transfer medium material of a molten-state metal, and injecting the heat transfer medium material in the molten state into the mold in a state where a furnace temperature is set higher than a melting point of the heat transfer medium material.
11. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 9, wherein the step of injecting a heat transfer medium material of a metal in a molten state into the mold comprises: the heat transfer medium material in a molten state is injected into the mold by gravity or pressure.
12. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 9, wherein the step of injecting a heat transfer medium material of a metal in a molten state into the mold comprises: and simultaneously or sequentially injecting a plurality of different heat transfer medium materials in a molten state into the mold.
13. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 9, wherein the port of the at least one flow path tube is exposed to the outside of the mold during casting.
14. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 8, wherein the step of casting the at least one flow path tube therein with a heat transfer medium material of a metal in a molten state comprises: the at least one flow path tube is immersed in the heat transfer medium material in a molten state in a state where the port is at least partially closed.
15. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 1, wherein the flow path tubes are made of a non-metallic material or a metallic material selected from the group consisting of aluminum, aluminum alloys, copper alloys, and stainless steel, the non-metallic material selected from the group consisting of graphite, silica, and alumina.
16. The manufacturing method of an integrated reforming hydrogen production reactor according to claim 1, wherein the flow path pipe has a shape selected from any one of a flat elbow pipe and a pipe extending in a solid space in a continuously curved manner.
17. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 1, wherein at least a portion of the flow path tubes are of a helical structure or a multi-helical structure.
18. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 1, wherein the thermal conductivity of the thermal conductive media material is not less than 50W/m-K.
19. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 1, wherein the thermally insulating media material is fiberglass, rock wool, silicate, aerogel blanket, or vacuum plate.
20. The method of manufacturing an integrated reforming hydrogen production reactor according to claim 19, wherein the insulating media material of silicate is asbestos.
21. An integrated reforming hydrogen production reactor, wherein the reforming hydrogen production reactor is produced by the production method of any one of claims 1 to 20,
the reforming hydrogen production reactor comprises a combustion zone, a heat exchange zone, a reforming reaction zone and a carbon monoxide elimination zone, and the reforming hydrogen production reactor comprises a heat transfer medium material and at least one flow path pipe embedded in the heat transfer medium material, wherein at least one part of the flow path pipe extends in a non-linear mode, and at least one catalyst is filled in the flow path pipe.
22. The integrated reforming hydrogen production reactor according to claim 21 wherein the integrated reforming hydrogen production reactor has an overall shape that is or approximates a cube, cuboid, cylinder, sphere, or ellipsoid.
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