JP2008155146A - Reaction apparatus and reaction system - Google Patents

Abstract

A supply pipe and a discharge pipe of a reactor and a corresponding supply pipe and a discharge pipe of a package are hermetically joined, respectively, to supply fluid from the outside of the reactor to the reactor and from the reactor to the outside of the reactor. Provided is a reaction apparatus that can smoothly discharge a fluid to the tank.
SOLUTION: A reaction apparatus 1 is used for introducing a fluid before reaction, and a reaction apparatus having two first tubes 6 and 7 provided on the surface, the other being used for sending out a fluid after reaction. A reactor 2, a package 3 for accommodating the reactor 2, and two second tubes 8 and 9 provided in the package 3 and connected to the corresponding first tubes 6 and 7, respectively. 7 and at least one of the connecting portions of the second pipes 8 and 9, the first ends of the first tubes 6 and 7 and the second tubes 8 and 9 are inserted into the other ends, and the first tubes 6 and 7 and One outer surface of the second pipes 8 and 9 is located inside the other inner surface.
[Selection] Figure 1

Description

  The present invention relates to a reaction apparatus such as a fuel reformer having a function of converting a supplied substance into another substance and outputting the substance, and a reaction system using the reaction apparatus.

  In recent years, a new concept called microtechnology has appeared due to the advancement and development of precision processing technology. In other words, microchemical systems that use microscopic microspaces to control and react with liquids and gases at high speed and with high accuracy are not only innovative technologies for increasing the efficiency and speed of reactions and analyses, It is also attracting attention as a place for new reaction systems. In particular, the micro chemical plant is expected to change not only the chemical industry but also the related medical, pharmaceutical, bio-related, and food industries as a change in conventional industrial material production methods.

As a system for portable devices, a reaction apparatus in which a reactor is accommodated in a vacuum package has been proposed (see, for example, Patent Document 1). With such a reactor, it is possible to reduce the heat generated during the reaction from being transmitted to the outside of the package, and to reduce power generation loss.
JP 2003-2602 A

  However, when the reactor is made of ceramic, since the shrinkage rate during ceramic firing is large, for example, the pitch accuracy of the plating pattern formed on the ceramic is low, and the raw material supply pipe and the reaction product of the ceramic reactor are low. There was a possibility that the position accuracy of the installation of the discharge pipe would be lowered. As a result, the positions of the supply pipe and the discharge pipe provided in the package and the supply pipe and the discharge pipe attached to the ceramic reactor are shifted, and airtight joining sometimes becomes difficult. In addition, when the lengths of the supply pipe and the discharge pipe provided in the reactor are uneven, airtight joining sometimes becomes difficult. As a result, there has been a problem that the supply of fluid to the reactor from the outside of the reactor and the discharge of fluid from the reactor to the outside of the reactor may not be successful, and the function as the reactor may be impaired.

  The present invention has been completed in view of the above-mentioned problems in the prior art, and an object thereof is to hermetically join the supply pipe and discharge pipe of the reactor to the supply pipe and discharge pipe of the package, thereby It is an object of the present invention to provide a reaction apparatus capable of smoothly supplying fluid from the outside to the reactor and discharging fluid from the reactor to the outside of the package, and a reaction system using the reaction apparatus.

  The reactor according to the present invention includes a reactor having two first tubes provided on the surface, one of which is used for introducing a fluid before reaction, and the other of which is used for sending out a fluid after reaction. A package containing the reactor; and two second pipes provided in the package and connected to the two first pipes, respectively, and a connection portion between the first pipe and the second pipe At least one of the first tube and the second tube is inserted into the other tip, and the outer surface of the one tip is inside the inner surface of the other tip. Located in. This reactor is referred to as a “first reactor”.

  In the first reaction apparatus, preferably, at least one of the connection portions of the first tube and the second tube is outside the tip of the one of the first tube and the second tube. The diameter is smaller than the inner diameter of the other tip. This reactor is referred to as a “second reactor”.

  In the second reaction apparatus, preferably, the one of the first tube and the second tube has an inner diameter at a tip portion smaller than an inner diameter of the other portion. This reactor is referred to as a “third reactor”.

  In any one of the first to third reaction apparatuses, preferably, the other tip portion of the first tube and the second tube has a recess for accommodating the one tip portion. ing. This reactor is referred to as a “fourth reactor”.

  In any one of the first to fourth reactors, preferably, the gap between the outer surface of the one tip portion of the first tube and the second tube and the inner surface of the other tip portion. Is filled with a bonding material. This reactor is referred to as a “fifth reactor”.

  In any one of the first to fifth reactors, preferably, in the inside of the package, a plurality of grooves are formed on the outer surface of the first tube. This reactor is referred to as a “sixth reactor”.

  In any one of the first to sixth reactors, preferably, the reactor is made of ceramic. This reactor is referred to as a “seventh reactor”.

  The reaction system of the present invention includes any one of the first to seventh reaction devices, a storage unit that stores the fluid before the reaction, and a fluid supply unit that supplies fluid from the storage unit to the reaction device. Is provided.

  The reaction apparatus of the present invention includes a reactor having two first tubes provided on the surface, one of which is used for introducing a fluid before reaction and the other of which is used for sending out a fluid after reaction. And a second pipe provided in the package and connected to the two first pipes, respectively, and at least one of the connection portion of the first pipe and the second pipe, Since one tip of the two tubes is inserted into the other tip, and the outer surface of one tip is located inside the inner surface of the other tip, the pitch between the supply tube and the discharge tube provided in the reactor Even if the accuracy is low or the lengths of the input and output pipes provided in the reactor are uneven, the supply and discharge pipes of the reactor and the corresponding supply and discharge pipes provided in the package Each can be hermetically bonded, outside the package It can be smoothly discharged fluid to the outside of the package from the feed and the reactor of the fluid into et reactor.

  The reaction system of the present invention includes the above-described reaction device, a storage unit that stores the fluid before the reaction, and a fluid supply unit that supplies the fluid from the storage unit to the reaction device. As a result, it is possible to stably obtain the fluid after the reaction.

  Embodiments of the reaction apparatus of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a cross-sectional view showing a configuration example of a reaction apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, the reaction apparatus 1 according to the present embodiment includes a reactor 2 and a package 3 that accommodates the reactor 2. The package 3 includes a base body 4 having a recess and a lid 5 attached so as to cover the recess. The reactor 2 is provided on its surface with a first supply pipe 6 into which a fluid before reaction is introduced and a first discharge pipe 7 into which a fluid after reaction is sent out. The base 4 is provided with a second supply pipe 8 connected to the first supply pipe 6 and a second discharge pipe 9 connected to the first discharge pipe 7. Further, the base 3 is provided with a through hole, and the lead terminal 10 is sealed and fixed in the through hole with an insulating sealing material 11 having heat insulation properties. The lead terminal 10 is connected to an electrode 13 provided on the surface of the reactor 2 through a bonding wire 12.

  FIG. 2 is an enlarged cross-sectional view of the distal ends of the second supply pipe 8 and the second discharge pipe 9 shown in FIG. As shown in FIGS. 1 and 2, the first supply pipe 6 and the first discharge pipe 7 provided in the reactor 2, and the second supply pipe 8 and the second discharge pipe 9 provided in the package 3, Each of the first supply pipe 6 and the first discharge pipe 7 has a cylindrical shape, and the distal ends of the first supply pipe 6 and the first discharge pipe 7 are inserted into the corresponding distal ends of the second supply pipe 8 and the second discharge pipe 9, respectively. The outer diameter of each tip of one discharge pipe 7 is smaller than the inner diameter of each tip of the corresponding second supply pipe 8 and second discharge pipe 9. In other words, the outer surfaces of the distal ends of the first supply pipe 6 and the first discharge pipe 7 are located inside the inner surfaces of the corresponding distal ends of the second supply pipe 8 and the second discharge pipe 9.

  Here, as shown in FIG. 2, the first supply pipe 6 and the second supply pipe 8, and the first discharge pipe 7 and the second discharge pipe 9 are made of Au—Sn alloy, Au—Si alloy, Au—, respectively. Joined by various brazing materials 14 such as Ge alloy and Ag-Cu alloy. That is, the front ends of the corresponding first supply pipe 6 and first discharge pipe 7 are inserted into the front ends of the second supply pipe 8 and the second discharge pipe 9, and the inner surface of the second supply pipe 8 and the first supply are supplied. The brazing material 14 is filled in the gap between the outer surface of the pipe 6 and the gap between the inner surface of the second discharge pipe 9 and the outer surface of the first discharge pipe 8. The brazing material 14 is preferably selected to form a fillet shape as shown in FIG. 2, and in this case, the second supply pipe 8, the first supply pipe 6, the second discharge pipe 9, and the first Good connection strength is obtained at each connection portion of the 1 discharge pipe 7.

  As described above, when the second supply pipe 8 and the first supply pipe 6 and the second discharge pipe 9 and the first discharge pipe 7 are connected using the brazing material 14, for example, the following method can be adopted. That's fine. FIG. 3 is a diagram illustrating an example of a connection method in the case where the second supply pipe 8 and the first supply pipe 6 and the second discharge pipe 9 and the first discharge pipe 7 are connected using the brazing material 14, respectively. is there. For example, as shown in FIG. 3, while the reactor 2 is held at a predetermined height in the package 3 using a jig 15, the inner surface of the second supply pipe 8 and the outer surface of the first supply pipe 6 are The brazing material 14 is filled into the gap and the gap between the inner surface of the second discharge pipe 9 and the outer surface of the first discharge pipe 8, and the jig 15 is removed after the brazing material 14 is solidified.

  In the reaction apparatus 1 shown in FIG. 1, the reactor 2 is made of ceramics, and includes a supply port (not shown) through which a fluid before reaction is introduced, and a discharge port (not shown) through which a fluid after reaction is sent out. have. A first supply pipe 6 is connected to the supply port, and a first discharge pipe 7 is connected to the discharge port.

  When the reactor 2 is formed of, for example, a dense aluminum oxide sintered body having a relative density of 95% or more, for example, a sintering aid such as rare earth oxide powder or aluminum oxide powder is first added to the aluminum oxide powder. Are added and mixed to prepare the raw material powder of the aluminum oxide sintered body. Next, an organic binder and a dispersion medium are added to this raw material powder, mixed to form a paste, and this paste is green by a doctor blade method, or an organic binder is added to the raw material powder, and press forming, rolling forming, etc. A sheet is produced. Then, after aligning and laminating and pressing a predetermined number of sheet-shaped molded bodies, the laminated body is fired at a firing maximum temperature of 1200 to 1500 ° C. in a non-oxidizing atmosphere, for example. A reactor 2 is obtained. Further, the molding may be a powder molding press method.

  Further, when a green sheet is produced, a through portion having a predetermined shape is provided, and then a groove portion through which a reacting substance is circulated can be formed by laminating and pressing with another green sheet. A catalyst for causing a substance to react may be supported on a portion serving as a side surface of the groove.

  When the reaction of the substance introduced into the reactor 2 is an endothermic reaction, a thin film heater (not shown) or a thick film heater (not shown) comprising a temperature control mechanism such as a resistance layer is provided in the reactor 2. The electrode 13 is formed on the surface as a terminal for supplying power to the heater. By adjusting the inside of the reactor 2 to a temperature condition of about 200 to 800 ° C. corresponding to the reaction condition of the substance by this temperature adjusting mechanism, the substance reaction can be favorably promoted.

  Such a heater is disposed in or near a groove or a space where a catalyst is supported and performs a material reaction. With such a configuration, the heat generated from the heater can be efficiently used for the material reaction.

A first supply pipe 6 provided in the reactor 2 and a second supply pipe 8 provided in the base 4 are supply paths for a fluid as a raw material. The first discharge pipe 7 provided in the reactor 2 and the base are provided. The second discharge pipe 9 provided in 4 is a discharge path for the fluid generated by the reaction in the reactor 2. These include, for example, SUS-based metal material, Fe-Ni alloy, Fe-Ni-Co alloy, _Al 2 _{O 3} sintered _material, 3Al ₂ O 3 · 2SiO ₂ sintered material, SiC sintered material, AlN It is made of a ceramic material such as a sintered material, a Si ₃ N ₄ material, a glass ceramic sintered material, a highly heat resistant resin material such as polyimide, or glass. Preferably, it is difficult to be embrittled by a substance contained in the reaction gas. Such materials include Fe alloys, ceramics, and glass.

  When the first and second supply pipes 6 and 8 and the first and second discharge pipes 7 and 9 are made of a metal material, they are formed into a predetermined shape by a cutting method, a press method, a MIM (Metal Injection Mold) method, or the like. It is formed.

  When the first and second supply pipes 6 and 8 and the first and second discharge pipes 7 and 9 are made of a metal material, the surface thereof is, for example, Au, to prevent corrosion. It is desirable to perform a coating process such as a Ni plating process or a resin coating such as polyimide. For example, in the case of Au plating treatment, the thickness is desirably about 0.1 to 5 μm.

  The first and second supply pipes 6 and 8 and the first and second discharge pipes 7 and 9 are formed of a dense aluminum oxide sintered body having a relative density of 95% or more, for example. In this case, first, a sintering aid such as rare earth oxide powder or aluminum oxide powder is added to and mixed with the aluminum oxide powder to prepare a raw material powder for the aluminum oxide sintered body. Next, an organic binder and a dispersion medium are added to this raw material powder, mixed to form a paste, and this paste is green by a doctor blade method, or an organic binder is added to the raw material powder, and press forming, rolling forming, etc. A sheet is produced. Then, after aligning and laminating and pressing a predetermined number of sheet-shaped molded bodies, the laminated body is fired at a firing maximum temperature of 1200 to 1500 ° C. in a non-oxidizing atmosphere, for example. First and second supply pipes 6 and 8 and first and second discharge pipes 7 and 9 are obtained. The first and second supply pipes 6 and 8 and the first and second discharge pipes 7 and 9 may be molded by a powder molding press method.

  In addition, the pitch of the second supply pipe 8 and the second discharge pipe 9 provided in the substrate 4 and the pitch of the first supply pipe 6 and the first discharge pipe 7 provided in the reactor 2 are designed to have the same dimensions. .

The package 4 includes a base body 4 and a lid body 5. Both the substrate 4 and the lid 5 have a role as a container for accommodating the reactor 2. The base 4 and the lid 5 are, for example, Fe-based alloys such as SUS, Fe—Ni—Co alloys, Fe—Ni alloys, oxygen-free copper metal materials, and aluminum oxide (Al ₂ O ₃ ) -based sintered bodies. , mullite _{(3Al 2 O 3 · 2SiO 2} ) sintered material, silicon carbide (SiC) sintered material, aluminum nitride (AlN) sintered material, silicon nitride _(Si 3 _{N 4)} sintered material, glass It is formed of a ceramic material such as ceramics or a highly heat-resistant resin material such as polyimide.

Glass ceramics applicable to the substrate 4 and the lid 5 are composed of a glass component and a filler component. As the glass component, for example, SiO ₂ —B ₂ O ₃ system, SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ system, SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —MO system (where M is Ca, Sr, Mg, Ba or Zn), SiO ₂ —Al ₂ O ₃ —M ¹ O—M ² O system (where M ¹ and M ² are the same or different and Ca, Sr, Mg, Ba or Zn represents), SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —M ¹ O—M ² O (where M ¹ and M ² are the same as above), SiO ₂ —B ₂ O ₃ — M ³ ₂ O system (where M ³ represents Li, Na or K), SiO ₂ —B ₂ O ₃ —Al ₂ O ₃ —M3 ₂ O system (where M ³ is the same as above), Pb glass, Bi glass, etc. are mentioned.

Examples of the filler component include a composite oxide of Al ₂ O ₃ , SiO ₂ , ZrO ₂ and an alkaline earth metal oxide, a composite oxide of TiO ₂ and an alkaline earth metal oxide, Al ₂ O _3. And composite oxides containing at least one selected from SiO ₂ (for example, spinel, mullite, cordierite) and the like.

  Further, when the base 4 and the lid 5 are formed of a dense aluminum oxide sintered body having a relative density of 95% or more, for example, first, rare earth oxide powder, aluminum oxide powder, etc. are added to the aluminum oxide powder. The raw material powder of the aluminum oxide sintered body is prepared by adding and mixing the sintering aid. Next, an organic binder and a dispersion medium are added to this raw material powder, mixed to form a paste, and this paste is green by a doctor blade method, or an organic binder is added to the raw material powder, and press forming, rolling forming, etc. A sheet is produced. Then, after aligning and laminating and pressing a predetermined number of sheet-shaped molded bodies, the laminated body is fired at a firing maximum temperature of 1200 to 1500 ° C. in a non-oxidizing atmosphere, for example. A base 4 and a lid 5 are obtained. The base 4 and the lid 5 may be molded by a powder molding press method.

  When the base 4 and the lid 5 are made of a metal material, they are formed into a predetermined shape by a cutting method, a press method, a MIM (Metal Injection Mold) method, or the like.

  In addition, when the base 4 and the lid 5 are made of a metal material, the surface thereof is subjected to a coating treatment such as Au or Ni plating or a resin coating such as polyimide to prevent corrosion. Is desirable. For example, in the case of Au plating treatment, the thickness is desirably about 0.1 to 5 μm.

  In addition, by covering at least the inner surface of the container composed of the substrate 4 and the lid 5 with a plating film of Au or Al, the radiant heat generated in the accommodated reactor 2 can be efficiently prevented, and the reaction It becomes possible to suppress the temperature rise of the apparatus 1.

  The base 4 and the lid 5 as described above should be thin in order to make the reactor 1 small and low in profile, but the bending strength, which is mechanical strength, is 200 MPa or more. Preferably there is.

  The lead terminal 10 is preferably made of a metal having the same or approximate thermal expansion coefficient as that of the base 4 and the lid 5. For example, the lead terminal 10 made of an Fe—Ni alloy or an Fe—Ni—Co alloy has a practical temperature. It is possible to prevent the occurrence of thermal distortion with respect to the change. In addition, the lead terminal 10 made of these materials can provide a good sealing property between the lead terminal 10 and the substrate 4 and has excellent bonding properties, and has the strength necessary for mounting and good solderability and weldability. It can be secured.

  When the reactor 2 is made of ceramic, the supply port (not shown) provided in the reactor 2 and the first supply pipe 6 are joined, and the discharge port (not shown) provided in the reactor 2 is connected to the first supply pipe 6. 1 For joining to the discharge pipe 7, various brazing materials such as Au-Sn alloy, Au-Si alloy, Au-Ge alloy, Ag-Cu alloy, glass such as quartz glass and borosilicate glass, various ceramics, and inorganic polymer Adhesives such as inorganic adhesives containing high heat-resistant organic materials such as polyimide amide, and adhesives made of organic silicon compounds such as silicone rubber and silicon resin can be applied. Thus, the inside of the reactor 1 can be kept well sealed for a long time. The same applies to the joining of the first supply pipe 6 and the first discharge pipe 7 corresponding to the second supply pipe 8 and the second discharge pipe 9. In the process, it is desirable to join the supply port and the discharge port of the reactor 2 and the corresponding first supply pipe 6 and first discharge pipe 7 first.

The lead terminal 10 is insulated and sealed and fixed to the through hole of the base 4 by an insulating sealing material 11 having heat insulation. The insulating sealing material 11 is made of, for example, a glass material such as borosilicate glass, alkali glass, or insulating glass mainly composed of lead, or a ceramic material such as aluminum oxide. The base 4 and the lead terminal 10 are electrically insulated by the sealing material 11 and the lead terminal 10 is sealed and fixed. The through-hole through which the lead terminal 10 formed in the base body 4 is inserted needs to have a size that prevents the base body 4 and the lead terminal 10 from coming into electrical contact with each other. An inner diameter that can ensure a distance of 0.1 mm or more from the base 4 to the base 4 is required.

  When the insulating sealing material 11 is made of a ceramic material such as aluminum oxide, the lead terminal 10 is inserted into the through hole of the base 4 via the insulating sealing material 11 made of, for example, a cylindrical ceramic material, and the insulating sealing material 11 is sealed. The connection between the stopper 11 and the base 4 and the insulation sealing material 11 and the lead terminal 10 can be made with a brazing material such as Au-Ge or Ag-Cu.

  The lead terminal 10 is electrically connected to the electrode 13 on the reactor 2 through the bonding wire 12. Further, by sealing the cavity of the substrate 4 using the lid 5, the reaction apparatus 1 in which the reactor 2 accommodated in the cavity of the substrate 4 is hermetically sealed is formed.

  The reactor 2 accommodated in the reaction apparatus 1 according to the present embodiment is an apparatus for reacting a substance, and has a groove or a gap in which a catalyst for reacting the substance is supported.

  In this reactor 2, the cover 5 is attached to the substrate 4 so as to cover the cavity by bonding with a metal brazing material such as Au alloy, Ag alloy, Al alloy, or a glass material, or by a seam weld method. 3 is accommodated.

  For example, when the base body 4 and the lid body 5 are joined with the Au—Sn brazing material, the Au—Sn brazing material is welded to the lid body 5 in advance, or the frame is formed by punching using a mold or the like. After the Au—Sn brazing material formed in the shape is placed between the base 4 and the lid 5, the lid 5 is joined to the base 4 by a sealing furnace or a seam welder, so The reactor 2 can be sealed.

  Further, the electrode 13 on the reactor 2 is electrically connected to the lead terminal 10 provided on the substrate 4 through the bonding wire 12. Thereby, the heater formed on the surface or inside of the reactor 2 can be heated through the electrode 13. As a result, the reaction temperature can be maintained in the reactor 2 and the reaction of the substance can be stabilized.

  Moreover, in order to obtain the heat insulation in the reaction apparatus 1, the inside of the package 3 needs to be evacuated. For this purpose, when the reactor 2 is sealed, it may be sealed by a brazing material in a vacuum furnace or a seam weld method in a vacuum chamber.

  In addition, the outer surfaces of the first supply pipe 6 and the first discharge pipe 7 may each have a plurality of grooves formed inside the package 3. As a result, the heat conduction from the first supply pipe 6 and the first discharge pipe 7 to the second supply pipe 8 and the second discharge pipe 9 is reduced, so that the heat conduction from the reactor 2 to the substrate 4 and the lid 5 is further improved. In addition to being able to be effectively suppressed, the first supply pipe 6 and the first discharge pipe 7 can be appropriately deformed, the stress due to the deformation of the first supply pipe 6 and the first discharge pipe 7 can be relieved, The junction between the first supply pipe 6 and the first discharge pipe 7 and the reactor 2 and the junction between the second supply pipe 8 and the second discharge pipe 9 and the base body 4 or the lid 5 are favorably maintained. be able to. Although it is preferable to form grooves on both the outer surface of the first supply pipe 6 and the outer surface of the first discharge pipe 7, even if the groove is formed only on one outer surface, the corresponding second supply pipe 8 or second 2 Heat conduction to the discharge pipe 9 can be reduced.

  As described above, in the reaction apparatus 1 according to the present embodiment, the distance between the first supply pipe 6 and the first discharge pipe 7 attached to the reactor 2 and the second supply pipe 8 and the second supply pipe attached to the package 3. Even when the interval between the discharge pipes 9 is shifted, the inner diameters of the distal ends of the second supply pipe 8 and the second discharge pipe 9 are larger than the outer diameters of the corresponding first supply pipe 6 and the first discharge pipe 7. Therefore, the displacement of the second supply pipe 8 is adjusted at the connection portion between the first supply pipe 6 and the second supply pipe 8 and the connection portion between the first discharge pipe 7 and the second discharge pipe 9. By filling the gap between the inner surface of the first supply pipe 6 and the outer surface of the first supply pipe 6 and the gap between the inner face of the second discharge pipe 9 and the outer surface of the first discharge pipe 8, respectively, The airtight joining of one discharge pipe 7 and the corresponding second supply pipe 8 and second discharge pipe 9 becomes possible. For example, as shown in FIG. 4A, even when the distance between the first supply pipe 6 and the first supply pipe 7 is narrow and the distance between the second supply pipe 8 and the second discharge pipe 9 is wide, Since the inner diameters of the second supply pipe 8 and the second discharge pipe 9 are larger than the outer diameters of the corresponding first supply pipe 6 and the first discharge pipe 7, the difference in the interval can be absorbed. Similarly, as shown in FIG. 4B, even when the distance between the first supply pipe 6 and the first supply pipe 7 is wide and the distance between the second supply pipe 8 and the second discharge pipe 9 is narrow, The difference in the distance can be absorbed.

  Furthermore, when the length of the first supply pipe 6 extending from the surface of the reactor 2 and the length of the first discharge pipe 7 are uneven, and the second extending from the surface of the package 3 inside the package 3. Even when the length of the supply pipe 8 and the length of the second discharge pipe 9 are uneven, the difference is absorbed in the depth direction of the respective distal end portions of the second supply pipe 8 and the second discharge pipe 9. .

  Accordingly, the dimensions and arrangement of the supply ports for connecting the first and second supply pipes 6 and 8 and the discharge ports for connecting the first and second discharge pipes 7 and 9 when the reactor 2 and the package 3 are manufactured. Even if they are shifted, the second supply pipe 8 and the second discharge pipe 9 corresponding to the first supply pipe 6 and the first discharge pipe 7 can be hermetically joined. It is possible to smoothly supply the fluid to the reactor 2 and discharge the fluid from the reactor 2 to the outside of the reactor 1.

  In the reaction apparatus 1 according to the present embodiment, the inner diameters of the second supply pipe 8 and the second discharge pipe 9 are larger than the outer diameters of the corresponding first supply pipe 6 and first discharge pipe 7. The inner diameter of the first supply pipe 6 and the first discharge pipe 7 is larger than the outer diameter of the second supply pipe 8 and the second discharge pipe 9, that is, each of the first supply pipe 6 and the first discharge pipe 7 It is good also as a structure by which each front-end | tip part of the corresponding 2nd supply pipe | tube 8 and the 2nd discharge pipe | tube 9 is each inserted in a front-end | tip part. In the reaction apparatus 1 according to the present embodiment, the first supply pipe 6 and the first discharge pipe 7 provided in the reactor 2 and the second supply pipe 8 and the second discharge pipe 9 provided in the package 3 are provided. , Each of which has a cylindrical shape, but may have other shapes having the same cross-sectional shape and dimensions perpendicular to the axial direction along the axial direction, such as a prismatic shape, and further axially along the axial direction. Other shapes having different cross-sectional shapes and dimensions perpendicular to the shape may be used. Furthermore, in the reaction apparatus 1 according to the present embodiment, the first supply pipe 6, the first discharge pipe 7, the second supply pipe 8, and the second discharge pipe 9 are all formed in the same shape. Alternatively, at least one of the shapes may be different.

  Further, in the reaction apparatus 1 according to the present embodiment, the outer surfaces of the distal ends of the first supply pipe 6 and the first discharge pipe 7 are the inner surfaces of the distal ends of the corresponding second supply pipe 8 and the second discharge pipe 9. The outer surface of at least one tip of the first supply pipe 6 and the first discharge pipe 7 is at least one of the tip of the corresponding second supply pipe 8 and second discharge pipe 9. It may be located inside the inner surface. Here, the first supply pipe 6 and the first discharge pipe 7 provided in the reactor 2 are referred to as “first pipe” without distinction, and the second supply pipe 8 and the second discharge pipe 9 provided in the package 3 are used. If it is referred to as a “second tube” without distinguishing between the first tube and the second tube, at least one of the connection portions of the first tube and the second tube, the outer surface of one of the first tube and the second tube is the inner surface of the other tube. If it is configured so as to be located inside, the difference between the pitch between the two first tubes and the pitch between the two second tubes can be absorbed, and the supply of the fluid to the reactor from the outside of the reactor and the reaction The fluid can be smoothly discharged from the reactor to the outside of the reaction apparatus.

(Embodiment 2)
Next, a reaction apparatus according to Embodiment 2 of the present invention will be described. FIG. 5 is a cross-sectional view showing a configuration example of the reaction apparatus according to the second embodiment. In FIG. 5, the same components as those of the reactor 1 shown in FIG. The reaction device 21 according to the present embodiment is different from the reaction device 1 according to the first embodiment in that the distal ends of the second supply pipe 8 and the second discharge pipe 9 correspond to the corresponding first supply pipe 6 and the first supply pipe. It is a point which has the recessed part which accommodates each front-end | tip part of the discharge pipe 7, respectively.

  6 is an enlarged view of the distal end portion of the second supply pipe 8 shown in FIG. 5, wherein (a) is a cross-sectional view and (b) is a top view. The tip of the second discharge pipe 9 has the same configuration as the tip of the second supply pipe 8, but only the tip of the second supply pipe 8 is shown in FIG. As shown in FIGS. 5 and 6, the second supply pipe 8 and the second discharge pipe 9 are joined to the respective front ends of the corresponding first supply pipe 6 and first discharge pipe 7 provided in the reactor 2. The portion to be provided is provided with a recess for accommodating the respective leading end portions of the first supply pipe 6 and the first discharge pipe 7. That is, the recess of the second supply pipe 8 can accommodate the tip of the first supply pipe 6 while maintaining a gap between the recess and the tip of the first supply pipe 6. The recess can accommodate the tip of the first discharge pipe 7 while maintaining a gap between the recess and the tip of the first discharge pipe 7.

  FIG. 7 is a view showing a connection part between the first supply pipe 6 and the second supply pipe 8 or a connection part between the first discharge pipe 7 and the second discharge pipe 9. Here, the 1st supply pipe 6 and the 2nd supply pipe 8, and the 1st discharge pipe 7 and the 2nd discharge pipe 9 are Au-Sn alloy, Au-Si alloy, Au-Ge alloy, Ag-Cu alloy, etc., respectively. The various brazing materials 14 are joined. That is, the front ends of the corresponding first supply pipe 6 and first discharge pipe 7 are inserted into the recesses of the second supply pipe 8 and the second discharge pipe 9, and the recesses of the second supply pipe 8 and the first supply pipe are inserted. 6 and the gap between the recess of the second discharge pipe 9 and the tip of the first discharge pipe 8 are filled with the brazing material 14, respectively.

  The inner diameters of the recesses of the second supply pipe 8 and the second discharge pipe 9 are larger than the outer diameters of the distal ends of the first supply pipe 6 and the first discharge pipe 7, and the difference is 0.01 mm or more and 0.0. 20 mm or less is desirable. When the thickness is 0.01 mm or more, the first supply pipe 6, the first discharge pipe 7, the second supply pipe 8, and the second discharge pipe 9 are subjected to Ni plating or Au plating treatment, and then joined by the brazing material 14. In this case, the first supply pipe 6 and the first discharge pipe 7 can be more easily inserted into the corresponding recesses. Moreover, when it is 0.20 mm or less, when the first supply pipe 6 and the first discharge pipe 7 are inserted into each recess and then joined with the brazing material 14, the brazing material 14 is connected to the first supply pipe 6 and the first discharge pipe. The gaps between the respective distal end portions of the tube 7 and the corresponding concave portions can be sufficiently filled, and airtightness can be more reliably performed. That is, the difference between the inner diameter of each recess of the second supply pipe 8 and the second discharge pipe 9 and the outer diameter of each tip of the corresponding first supply pipe 6 and first discharge pipe 7 is 0. If it is 01 mm or more and 0.20 mm or less, the first supply pipe 6 and the first discharge pipe 7 can be smoothly inserted into the corresponding recesses, and the recesses, the first supply pipe 6 and the first discharge pipe are also inserted. 7 can be sufficiently filled with gaps between the respective distal end portions, the gap between the outer surface of the distal end portion of the first supply pipe 6 and the inner surface of the concave portion of the second supply pipe 8, and the distal end portion of the first discharge pipe 7. It becomes possible to form a good meniscus of the bonding material in the gap between the outer surface of the second discharge pipe 9 and the inner surface of the concave portion of the second discharge pipe 9, and the bonding strength can be improved.

  The depth of the recesses of the second supply pipe 8 and the second discharge pipe 9 is preferably 0.20 mm or more. When it is 0.20 mm or more, the first supply pipe 6 and the first discharge pipe 7 are inserted into the recesses when the first supply pipe 6 and the first discharge pipe 7 are joined to the corresponding recesses by the brazing material 14. Becomes easier. The upper limit depth depends on the unevenness of the first supply pipe 6 and the second supply pipe 8, and the first discharge pipe 7 and the second discharge pipe 9, but the first supply pipe 6 and the first discharge pipe. 7 can be reliably inserted into the corresponding recesses, and it is sufficient that the brazing material 14 has a depth enough to fill the gap after the insertion. When the depth of each recess of the second supply pipe 8 and the second discharge pipe 9 is 0.20 mm or more, the first supply pipe 6 and the first discharge pipe 7 can be smoothly inserted into the corresponding recesses, At the same time, it is possible to sufficiently fill the gaps between the recesses and the tip portions of the first supply pipe 6 and the first discharge pipe 7, and the outer surface of the tip part of the first supply pipe 6 and the second supply pipe 8. It becomes possible to form a good meniscus of the bonding material in the gap between the inner surface of the concave portion and the outer surface of the tip portion of the first discharge pipe 7 and the inner surface of the concave portion of the second discharge pipe 9, thereby improving the bonding strength. be able to.

  The difference between the outer diameter and the inner diameter of each recess of the second supply pipe 8 and the second discharge pipe 9 is preferably 0.15 mm or more. If the thickness is 0.15 mm or more, the thickness between the inner surface of the recess and the outer surface of the recess is sufficient, and the possibility of causing deformation or breakage when the first supply pipe 6 or the first discharge pipe 7 is inserted is reduced. . The thickness of each concave portion of the second supply pipe 8 and the second discharge pipe 9, that is, the distance between the inner surface and the outer surface of each concave portion is determined by the size of the reactor 2 and the first supply pipe 6 and the first discharge pipe 7. Although it varies depending on the pitch dimension, if it has a thickness of about 0.10 mm, the risk of deformation or breakage is low even if the first supply pipe 6 or the first discharge pipe 7 is inserted.

  As described above, in the reaction apparatus 1 according to the present embodiment, the distance between the first supply pipe 6 and the first discharge pipe 7 attached to the reactor 2 and the second supply pipe 8 and the second supply pipe attached to the package 3. Even when the interval between the discharge pipes 9 is deviated, the positional deviation is adjusted by the recesses of the second supply pipe 8 and the second discharge pipe 9, so that it corresponds to the first supply pipe 6 and the first discharge pipe 7. The second supply pipe 8 and the second discharge pipe 9 can be hermetically joined. For example, as shown in FIG. 8A, even when the interval between the first supply pipe 6 and the first supply pipe 7 is narrow and the interval between the second supply pipe 8 and the second discharge pipe 9 is wide, Differences in the gaps are absorbed by the concave portions provided at the tip portions of the second supply pipe 8 and the second discharge pipe 9. Similarly, as shown in FIG. 8B, even when the distance between the first supply pipe 6 and the first supply pipe 7 is wide and the distance between the second supply pipe 8 and the second discharge pipe 9 is narrow, The gap difference is absorbed.

  Furthermore, when the length of the first supply pipe 6 extending from the surface of the reactor 2 and the length of the first discharge pipe 7 are uneven, and the second extending from the surface of the package 3 inside the package 3. Even when the length of the supply pipe 8 and the length of the second discharge pipe 9 are uneven, the depths of the recesses are reduced by the recesses provided at the respective distal ends of the second supply pipe 8 and the second discharge pipe 9. The difference is absorbed in the vertical direction.

  Accordingly, the dimensions and arrangement of the supply ports for connecting the first and second supply pipes 6 and 8 and the discharge ports for connecting the first and second discharge pipes 7 and 9 when the reactor 2 and the package 3 are manufactured. Even when the first and second discharge pipes 6 and 7 correspond to the second supply pipe 8 and the second discharge pipe 9, the reactor can be externally connected to the reactor. The fluid can be smoothly supplied to and discharged from the reactor to the outside of the reactor.

  In the example shown in FIG. 5, each tip of the second supply pipe 8 and the second discharge pipe 9 provided on the substrate 3 side has a recess, but the first supply pipe provided in the reactor 2 6 and the first discharge pipe 7 may have a recess at each end. Further, the tip portion having the recess may be oval or square instead of circular.

  In addition, a fluid system including the above-described reaction devices 1 and 21, a storage unit that stores the fluid before the reaction, and a fluid supply unit such as a pump that supplies fluid from the storage unit to the reaction devices 1 and 21 is configured. can do. In this reaction system, the fluid before the reaction can be stably supplied to the reactors 1 and 21, and as a result, the fluid after the reaction can be stably obtained.

  The reactors 1 and 21 described above can be used as a fuel reformer that generates hydrogen gas by reacting a fuel such as methanol. In that case, the hydrogen gas discharged from the reactor is used as fuel. By combining with a fuel cell, a fuel cell system can be configured. In the fuel cell system using the reactor described above, the fluid can be smoothly supplied from the outside of the package to the reactor and the fluid can be smoothly discharged from the reactor to the outside of the package. Thus, a fuel cell system that can be carried out can be realized.

  In addition, this invention is not limited to the example of the above embodiment, A various change may be added in the range which does not deviate from the summary of this invention.

It is sectional drawing which shows the structural example of the reaction apparatus by Embodiment 1 of this invention. It is an enlarged view of the connection part of a 1st supply pipe and a 2nd supply pipe, and the connection part of a 1st discharge pipe and a 2nd discharge pipe. It is a figure explaining an example of the connection method in the case of connecting a 2nd supply pipe, a 1st supply pipe, and a 2nd discharge pipe and a 1st discharge pipe using brazing material, respectively. (A) shows a connection part between the first supply pipe and the second supply pipe and a connection part between the first discharge pipe and the second discharge pipe when the distance between the first supply pipe and the first supply pipe is narrow. (B) is a view showing the connection between the first supply pipe and the second supply pipe, and the first discharge pipe and the second discharge pipe when the distance between the first supply pipe and the first supply pipe is wide. It is a figure which shows a connection part. It is sectional drawing which shows the structural example of the reaction apparatus by Embodiment 2 of this invention. (A) is sectional drawing of the front-end | tip part of the 2nd supply pipe and 2nd discharge pipe shown in FIG. 5, (b) is the front-end | tip part of the 2nd supply pipe and 2nd discharge pipe shown in FIG. FIG. It is an enlarged view of the connection part of a 1st supply pipe and a 2nd supply pipe, and the connection part of a 1st discharge pipe and a 2nd discharge pipe. (A) shows a connection part between the first supply pipe and the second supply pipe and a connection part between the first discharge pipe and the second discharge pipe when the distance between the first supply pipe and the first supply pipe is narrow. (B) is a view showing the connection between the first supply pipe and the second supply pipe, and the first discharge pipe and the second discharge pipe when the distance between the first supply pipe and the first supply pipe is wide. It is a figure which shows a connection part.

Explanation of symbols

1, 21 Reactor 2 Reactor 3 Package 4 Base 5 Lid 6 First supply pipe 7 First discharge pipe 8 Second supply pipe 9 Second discharge pipe 10 Lead terminal 11 Insulating sealing material 12 Wire bonding 13 Electrode 14 Bonding Material 15 Jig

Claims (8)

A reactor provided on the surface with two first tubes, one used for introducing the pre-reaction fluid and the other used for delivering the post-reaction fluid;
A package containing the reactor;
Two second pipes provided in the package and respectively connected to the two first pipes;
In at least one of the connection portions of the first tube and the second tube, one tip portion of the first tube and the second tube is inserted into the other tip portion, and the outer surface of the one tip portion is A reaction apparatus which is located inside the inner surface of the other tip.   In at least one of the connection portions of the first tube and the second tube, the outer diameter of the one tip portion of the first tube and the second tube is smaller than the inner diameter of the other tip portion. The reaction apparatus according to claim 1.   The reaction apparatus according to claim 2, wherein the one of the first tube and the second tube has an inner diameter at a tip portion smaller than an inner diameter of another portion.   The reaction apparatus according to any one of claims 1 to 3, wherein the other tip portion of the first tube and the second tube has a concave portion that accommodates the one tip portion.   5. The bonding material is filled between an outer surface of the one tip portion of the first pipe and the second tube and an inner surface of the other tip portion. A reactor according to 1. 6. The reaction apparatus according to claim 1, wherein a plurality of grooves are respectively formed on an outer surface of the first tube inside the package. The reaction apparatus according to claim 1, wherein the reactor is made of ceramic. A reaction apparatus according to any one of claims 1 to 7;
A reservoir for storing the fluid before the reaction;
A reaction system comprising fluid supply means for supplying fluid from the storage unit to the reaction device.

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