JP4403943B2 - Fluid mixer and microreactor system - Google Patents

Description

  The present invention relates to a fluid mixer that mixes liquid or gas in fields such as chemical synthesis and chemical analysis, and also relates to a microreactor system including the mixer.

  In recent years, in the fields of chemical synthesis and chemical analysis, the cross-sectional dimension produced using micro processing (MEMS) technology is several tens to several hundreds μm in order to shorten the reaction time and suppress side reactions. Mixers composed of flow paths are beginning to be used. Such a mixer is called a micromixer or a microreactor. Since the representative length of the flow path in the micromixer is short, the flow becomes a laminar flow because the Reynolds number, which is a dimensionless number representing the ratio between the inertia force and the viscous force of the fluid, is small. Therefore, when mixing two types of fluids, mixing proceeds by molecular diffusion. Therefore, as the representative length of the flow path is reduced, the diffusion distance is shortened, so that fluid mixing is promoted. In addition, since the heat transfer coefficient in the flow path is improved due to the small representative length of the flow path, it is possible to precisely control the temperature of the fluid. For example, when a reaction involving reaction heat is performed using a micromixer, a side temperature can be suppressed because a uniform temperature field can be created.

  In Patent Document 1, two types of fluids are alternately introduced in the flow direction from the lower side of the mixing channel, and the flow is multilayered in the height direction of the channel to reduce the diffusion distance between the two fluids. Has improved.

  In Patent Document 2, by providing a plurality of partition walls that flow alternately in two layers in the width direction upstream of the mixing flow path, the flow is multilayered in the mixing section to reduce the diffusion distance between the two fluids. To improve mixing.

  In Patent Document 3, the second fluid flows in from a plurality of openings provided below the mixing part into which the first fluid flows, and each opening is provided with a U-shaped nozzle having an opening in the downstream direction of the flow. ing. Thereby, two types of flows flow alternately in layers, and the diffusion distance between the two fluids is reduced to improve the mixing property.

  In Patent Document 4, two types of fluid alternately flow into a plurality of flow paths connected to the mixing unit, and further, the flow path width downstream of the mixing unit is reduced, so that the flow is multi-layered and diffused between the two fluids. The distance is reduced to improve mixing.

JP 2002-45666 A (Overall) JP 2003-1077 A (Overall) Special Table 2000-503894 (Overall) WO 02/16017 A2 (Overall)

  In the prior art of Patent Document 1, the depth of the introduction channel for allowing two kinds of fluids to alternately flow in the flow direction from below the mixing channel is made larger than the width of the introduction channel. For this reason, although the fluid can be allowed to flow uniformly into the mixing portion, the thickness of the micromixer increases and the thermal resistance of the structure increases, so that the temperature controllability may decrease.

  In the prior art of Patent Document 2, since a plurality of partition walls are provided in the flow channel upstream of the mixing flow channel, the manufacturing process becomes complicated and the production cost increases. Moreover, since it is necessary to increase the thickness of a partition wall in order to raise the intensity | strength of a partition wall, the whole flow path width increases. Moreover, since there are many wall surfaces, pressure loss may increase. Furthermore, if the partition wall exists, the width of each flow path becomes narrow, so that there is a possibility that the flow path may be blocked when solid suspended matters or precipitates due to reaction exist.

  In the prior art of Patent Document 3, in order to provide a plurality of nozzles in the flow path, the manufacturing process becomes complicated and the production cost increases. Further, in order to increase the strength of the U-shaped nozzle, it is necessary to increase the thickness of the wall of the nozzle, which increases the overall flow path width.

  In the prior art of Patent Document 4, since there are many thin flow paths, there is a possibility that pressure loss may increase, and when solid suspended matters or precipitates due to reaction exist, the flow paths may be blocked.

  An object of the present invention is to provide a fluid mixer or a microreactor system including a fluid mixer that can reduce pressure loss with a simple structure and prevent blockage of a solid suspension.

  In a preferred embodiment of the present invention, an introduction plate in which an introduction flow path for introducing a plurality of different fluids is formed, a mixing plate in which a mixing flow path is formed, and a mixed flow of the mixing plate from the introduction flow path of the introduction plate A communication part formed by overlapping the introduction plate and the mixing plate so as to communicate with the channel is provided, and a plurality of different fluids are divided into a plurality of rows in the width direction, and alternately to the mixing channel of the mixing plate in the width direction. The communication portion is formed at a position corresponding to immediately after the upstream end portion of the mixing channel so as to flow in.

  Further, in a preferred embodiment of the present invention, the value obtained by dividing the channel width downstream of the mixing unit by the division number obtained by dividing one of the different fluids into multiple layers is 1 mm. Less than.

  According to a preferred embodiment of the present invention, a fluid mixer, a micromixer, or a microreactor that has a simple structure and multi-layers different types of fluids to improve mixing properties while reducing pressure loss and preventing channel blockage. Can be provided.

  According to another desirable embodiment of the present invention, since the channel width of the mixing channel is increased to 1 mm or more, a microreactor having a large production amount or processing amount can be provided.

  Other objects and features of the present invention will become apparent from the following description of the embodiments.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view showing the structure of a fluid mixer according to a first embodiment of the present invention. 2 is a partial plan view showing the structure of the fluid mixer shown in FIG. 1 and a sectional view thereof. FIG. 2A is a diagram showing the relationship between the flow path 10 and the mixing portion 121, and FIG. -B sectional drawing, the figure (c) is a related figure of mixing part 121 and channel 11, and the figure (d) is the dd sectional view.

  The fluid mixer includes five plates 1 to 5 which are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. A mixing channel 12 for mixing two kinds of fluids is formed between the introduction plate 2 in which the introduction channel 10 for flowing the fluid 8 is formed and the introduction plate 4 in which the introduction channel 11 for flowing the fluid 9 is formed. The mixed plates 3 are stacked. A mixing section 121 is provided upstream of the mixing flow path 12, and a flow path 122 is formed via a contracted flow section downstream of the mixing section 121. In addition, the width of the mixing part 121 and the downstream flow path 122 can also be made the same, without providing a contraction part. At the downstream ends of the two introduction flow paths 10 and 11, a flow path convex portion 15 (151, 153, 155) and a flow path convex portion 16 (162, 164, 166) are provided. As shown in (a), (b), (c), and (d) of FIG. 2, the upstream end portion 20 of the mixing portion has the convex portions of the introduction passages 10 and 11 installed at the upper and lower portions. 15 (151, 153, 155) and 16 (162, 164, 166) alternately overlap in the width direction. As a result, the two types of fluids 8 and 9 flow alternately from immediately after the upstream end 20 of the mixing unit 121. In the mixing section 121 of the mixing flow path 12, the fluid 8 and the fluid 9 are in a multilayered state in the width direction, and the mixing flow path 12 is contracted by the contraction section downstream of the mixing section 121. The interval between the fluid 8 and the fluid 9 in the multilayer state is further reduced at the contracted portion where the flow path is narrowed, so that mixing is promoted.

  Here, the width of the mixing channel 12 (the width of the channel 122 after contraction in FIG. 1) is 1 mm or more, and a value obtained by dividing this by the division number 3 of the fluids 8 and 9 is less than 1 mm. To do. Thereby, while improving the mixing performance, the production amount of the reaction product can be increased, the pressure loss can be reduced, and further, the blockage of the flow path due to the solid suspended matter can be prevented.

  FIG. 3 is an exploded perspective view showing the structure of the fluid mixer according to the second embodiment of the present invention, and shows a modification of the fluid mixer of FIG. 1 and FIG. 2 is different from the embodiment of the fluid mixer shown in FIG. 1 in that the flow path convex portions 15 and 16 at the downstream ends of the introduction flow paths 10 and 11 are elongated in the flow direction to form a flow path. That is. Also in this case, the sectional views of FIGS. 2B and 2D are exactly the same, and the same effect as the first embodiment can be obtained.

  FIG. 4 is an exploded perspective view showing the structure of the fluid mixer according to the third embodiment of the present invention, and FIG. 5 is a partial plan view showing the structure of the fluid mixer of FIG. It is sectional drawing.

  The fluid mixer is composed of seven plates 1, 2, 3, 4, 5, 21, and 23 that are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. A mixing plate 3 having a mixing channel 12 is laminated between an introducing plate 2 in which an introducing channel 10 for flowing the fluid 8 is formed and an introducing plate 4 in which an introducing channel 11 for flowing the fluid 9 is formed. ing. A mixing unit 121 is provided upstream of the mixing channel 12. A communication plate 21 provided with communication holes 22 is laminated between the mixing plate 3 and the upper introduction plate 2. Further, a communication plate 23 provided with a communication hole 24 is laminated between the mixing plate 3 and the lower introduction plate 4. Corresponding to the position immediately after the downstream side of the upstream end portion 20 of the mixing channel, the communication holes 22 and 24 are installed in the respective communication plates 21 and 23 so as to alternate in the width direction. Therefore, the different fluids 8 and 9 from the two introduction channels 10 and 11 alternately flow from the upper and lower sides through the communication holes 22 and 24 immediately after the downstream side of the upstream end 20 of the mixing channel. In the mixing unit 121, the fluid 8 and the fluid 9 are in a multilayer state in the width direction. Furthermore, also in this embodiment, the mixing flow path 12 is contracted downstream of the mixing section 121, and the interval between the fluids 8 and 9 that are in a multilayered state in the width direction is further reduced to facilitate mixing. Other dimensions are the same as in the previous example, which improves the mixing performance, increases the production of reaction products, reduces the pressure loss, and prevents the blockage of the solid suspension. it can.

  FIG. 6 is an exploded perspective view showing the structure of the fluid mixer according to the fourth embodiment of the present invention. 7 is a partial plan view showing the structure of the fluid mixer shown in FIG. 6 and a cross-sectional view thereof. FIG. 7A is a diagram showing the relationship between the flow path 10 and the mixing portion 121, and FIG. -B sectional drawing, the figure (c) is a related figure of mixing part 121 and channel 11, and the figure (d) is the dd sectional view.

  The fluid mixer includes five plates 1 to 5 which are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. A mixing channel 12 for mixing two kinds of fluids is formed between the introduction plate 2 in which the introduction channel 10 for flowing the fluid 8 is formed and the introduction plate 4 in which the introduction channel 11 for flowing the fluid 9 is formed. The mixed plates 3 are stacked. A mixing section 121 is provided upstream of the mixing flow path 12, and a flow path 122 is formed via a contracted flow section downstream of the mixing section 121. In addition, the width of the mixing part 121 and the downstream flow path 122 can also be made the same, without providing a contraction part. Six flow path convex portions 14 (141 to 146) are provided upstream of the mixing portion 121. On the other hand, at the downstream ends of the two introduction channels 10 and 11, half of the channel protrusions 15 (151, 153, respectively) are arranged so as to face every other channel protrusion of the mixing channel 12. 155) and flow path convex portions 16 (162, 164, 166). As shown in (a), (b), (c), and (d) of FIG. 7, the flow path convex portion 14 (141 to 146) upstream from the mixing portion is introduced into the upper and lower portions. The channel protrusions 15 (151, 153, 155) and 16 (162, 164, 166) of the paths 10 and 11 are alternately overlapped in the width direction. As a result, the two types of fluids 8 and 9 flow alternately from the flow path convex portions 141 to 146 upstream of the mixing portion 121. In the mixing section 121 of the mixing flow path 12, the fluid 8 and the fluid 9 are in a multilayered state in the width direction, and the mixing flow path 12 is contracted by the contraction section downstream of the mixing section 121. The interval between the fluid 8 and the fluid 9 in the multilayer state is further reduced at the contracted portion where the flow path is narrowed, so that mixing is promoted.

  Upstream from the mixing channel 12, the two fluids introduced from the upper and lower introduction channels 10 and 11 are guided by the partition walls formed by the channel convex portions 141 to 146. Thereby, in the mixing part 121, the two fluids flow in multiple layers in the width direction of the flow path without being divided into two layers in the vertical direction of the flow path, so that excellent mixing performance is obtained. As shown in FIG. 7, the flow direction length of the flow path convex portion 14 upstream from the mixing portion 121 is determined by the flow path convex portions 15 and 16 and the flow path convex portion 14 at the downstream end of the introduction flow paths 10 and 11. Is formed substantially equal to the length L in the flow direction of the communication portion formed in (1). In order to prevent two fluids from being separated into two layers in the vertical direction of the flow path in the mixing part 121, the flow direction length of the flow path convex part 14 serving as a partition wall that regulates the flow direction of the fluid is large. The effect increases, and the flow direction length of the flow path convex portion 14 can be almost prevented by L, and the prevention effect becomes complete as the flow length becomes larger, but the effect gradually becomes saturated, and conversely the pressure loss of the fluid increases. . Therefore, in order to prevent the two fluids from being divided into two layers in the vertical direction of the flow path in the mixing unit 121 and to suppress the pressure loss of the fluid, the flow direction length of the flow path convex part 14 is set to the communication part. It is desirable that the length be less than 3 times the length L in the flow direction. This makes it possible to realize a fluid mixer with a simple structure, in which different types of fluids are multi-layered to improve the mixing property, and the pressure loss is small and the blockage of the channel is less likely to occur.

  Other dimensions are the same as in the previous example, which improves the mixing performance, increases the production of reaction products, reduces the pressure loss, and prevents the blockage of the solid suspension. it can.

  Further, the shape of the channel convex portion upstream from the mixing channel can be an arbitrary shape such as a semi-elliptical shape. Here, the mixing performance improves as the number of flow divisions increases.

  FIG. 8 is an exploded perspective view showing the structure of the fluid mixer according to the fifth embodiment of the present invention. FIG. 9 is a partial plan view showing the structure of the fluid mixer shown in FIG.

  The fluid mixer is composed of seven plates 1 to 5, 21, and 23 that are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. A mixing channel 12 for mixing two kinds of fluids is provided between the introduction plate 2 in which the introduction channel 10 for flowing the fluid 8 is formed and the introduction plate 4 in which the introduction channel 11 for flowing the fluid 9 is formed. The formed mixing plates 3 are stacked. A mixing unit 121 is provided upstream of the mixing channel 12, and six channel projections 14 facing the upstream side are provided upstream of the mixing unit, as in FIG. 6. A communication plate 21 provided with communication holes 22 is laminated between the mixing plate 3 and the upper introduction plate 2. Further, a communication plate 23 provided with a communication hole 24 is laminated between the mixing plate 3 and the lower introduction plate 4. Corresponding to the position of the flow path convex portion 14 upstream from the mixing flow path, the communication holes 21 and 23 having a size equal to or smaller than the size of the flow path convex portion are alternately arranged in the width direction. Is installed. Accordingly, the six flow paths in which the different fluids 8 and 9 from the two introduction flow paths 10 and 11 are arranged in the width direction upstream from the mixing flow path 12 of the mixing plate 3 through the communication holes 22 and 24 from above and below, respectively. It alternately flows into the convex portion 14.

  Upstream of the mixing channel 12, the two fluids that have flowed in from the upper and lower introduction channels 10 and 11 through the communication holes 22 and 24 are guided by the partition walls formed by the channel convex portions 14. Thereby, in the mixing part 121, the two fluids flow in multiple layers in the width direction of the flow path without being divided into two layers in the vertical direction of the flow path, so that excellent mixing performance is obtained. As shown in FIG. 9, the flow direction length of the flow path convex portion 14 upstream from the mixing portion 121 is formed substantially equal to the flow direction length L of the communication holes 22 and 24. In order to prevent two fluids from being separated into two layers in the vertical direction of the flow path in the mixing part 121, the flow direction length of the flow path convex part 14 serving as a partition wall that regulates the flow direction of the fluid is large. The effect increases, and the flow direction length of the flow path convex portion 14 can be almost prevented by L, and the prevention effect becomes complete as the flow length becomes larger, but the effect gradually becomes saturated, and conversely the pressure loss of the fluid increases. . Therefore, in order to prevent the two fluids from being divided into two layers in the vertical direction of the flow path in the mixing portion 121 and to suppress the pressure loss of the fluid, the flow direction length of the flow path convex portion 14 is set to the communication hole. It is desirable that the length be less than 3 times the length L in the flow direction. This makes it possible to realize a fluid mixer with a simple structure, in which different types of fluids are multi-layered to improve the mixing property, and the pressure loss is small and the blockage of the channel is less likely to occur.

  Other dimensions are the same as in the previous example, which improves the mixing performance, increases the production of reaction products, reduces the pressure loss, and prevents the blockage of the solid suspension. it can.

  FIG. 10 is an exploded perspective view showing the structure of a fluid mixer according to a sixth embodiment of the present invention. FIG. 11 is a partial plan view showing the structure of the fluid mixer of FIG. It is sectional drawing.

  The fluid mixer is composed of five plates 1, 2, 25, 3, and 5 which are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. A single introduction plate 2 in which an introduction passage 10 for flowing fluid 8 and an introduction passage 11 for flowing fluid 9 are formed, and a mixing plate 3 in which a mixing passage 12 for mixing two kinds of fluids are formed communicate with each other. The plates 25 are stacked. A mixing unit 121 is provided upstream of the mixing channel 12, and six channel convex portions 14 facing upstream are provided upstream of the mixing unit 121, just like FIGS. At the downstream ends of the two introduction channels 10 and 11, channel projections 15 and 16 are provided in half each in the case of the mixing channel. Corresponding to the positions of these flow path convex portions 15 and 16, communication holes 22 and 24 having a size equal to or smaller than the size of the flow path convex portions are arranged in the communication plate 25 so as to alternate in the width direction. Further, these communication holes 22 and 24 correspond to the positions of the flow path convex portions 14 upstream from the mixing flow path of the mixing plate 3, and therefore, different fluids 8 from the two introduction flow paths 10 and 11. And 9 alternately flow into the six channel protrusions 14 arranged in the width direction upstream of the mixing channel through the communication holes 22 and 24, respectively.

  Upstream from the mixing channel 12, the two fluids that have flowed in from the introduction channels 10 and 11 through the communication holes 22 and 24 are guided by the partition wall formed by the channel protrusions 14. Thereby, in the mixing part 121, since two fluid flows into a multilayer in the width direction of a flow path without dividing into two layers in the up-down direction of a flow path, the outstanding mixing performance is obtained. As shown in FIG. 11, the flow direction length of the flow path convex portion 14 upstream from the mixing portion 121 is formed to be substantially equal to the flow direction length L of the communication holes 22 and 24. In order to prevent two fluids from being separated into two layers in the vertical direction of the flow path in the mixing part 121, the flow direction length of the flow path convex part 14 serving as a partition wall that regulates the flow direction of the fluid is large. The effect increases, and the flow direction length of the flow path convex portion 14 can be almost prevented by L, and the prevention effect becomes complete as the flow length becomes larger, but the effect gradually becomes saturated, and conversely the pressure loss of the fluid increases. . Therefore, in order to prevent the two fluids from being divided into two layers in the vertical direction of the flow path in the mixing portion 121 and to suppress the pressure loss of the fluid, the flow direction length of the flow path convex portion 14 is set to the communication hole. It is desirable that the length be less than 3 times the length L in the flow direction. This makes it possible to realize a fluid mixer with a simple structure, in which different types of fluids are multi-layered to improve the mixing property, and the pressure loss is small and the blockage of the channel is less likely to occur.

  Other dimensions are the same as in the previous example, which improves the mixing performance, increases the production of reaction products, reduces the pressure loss, and prevents the blockage of the solid suspension. it can.

  FIG. 12 is an exploded perspective view showing the structure of the fluid mixer according to the seventh embodiment of the present invention. FIG. 13 is a partial plan view showing the structure of the fluid mixer of FIG. It is sectional drawing.

  The fluid mixer is composed of six plates 1 to 5 and 21 which are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. Between the upper lid 1 and the lower lid 5, the introduction plate 2 in which the introduction channel 10 is formed, the communication plate 21 in which the communication hole 22 is formed, the mixing plate 3 in which the mixing channel 12 is formed, and the introduction The introduction plate 4 in which the flow path 11 is formed is laminated. A mixing unit 121 is provided upstream of the mixing channel 12, and a plurality (three in the figure) of channel protrusions 14 are provided at intervals upstream of the mixing unit.

  In the communication plate 21, three communication holes 22 having a width equal to or less than the width of the mixing unit upstream end 20 are arranged side by side in the width direction so as to correspond to the position immediately downstream of the mixing unit upstream end 20. The introduction channel 10 is installed so as to overlap the communication hole 22. As a result, the fluid 8 flows through the communication hole 22 immediately after the downstream of the mixing portion upstream end portion 20. On the other hand, the introduction flow path 11 overlaps within the range of the length in the flow direction of the protrusion 14 upstream of the mixing flow path 12, so that the fluid 9 flows into the protrusion 14 upstream of the mixing section 121.

  Upstream of the mixing channel 12, the fluid 9 flowing from the introduction channel 11 is guided by a partition wall formed by the channel protrusions 14. On the other hand, the fluid 8 flows from the introduction channel 10 through the communication hole 22 and immediately after the downstream of the mixing unit upstream end 20. The fluid 9 flows through the partition wall in the downstream direction of the mixing unit and is difficult to flow immediately after the downstream of the mixing unit upstream end portion 20. Therefore, in the mixing unit 121, the two fluids are not divided into two layers in the vertical direction of the flow path. By flowing in a multilayer shape in the width direction of the flow path, excellent mixing performance can be obtained. As shown in FIG. 13, the flow direction length of the flow path convex portion 14 upstream of the mixing portion 121 is substantially equal to the flow direction length L of the communication portion formed by the introduction flow path 11 and the flow path convex portion 14. Are equally formed. In order to prevent two fluids from being separated into two layers in the vertical direction of the flow path in the mixing part 121, the flow direction length of the flow path convex part 14 serving as a partition wall that regulates the flow direction of the fluid is large. The effect increases, and the flow direction length of the flow path convex portion 14 can be almost prevented by L, and the prevention effect becomes complete as the flow length becomes larger, but the effect gradually becomes saturated, and conversely the pressure loss of the fluid increases. . Therefore, in order to prevent the two fluids from being divided into two layers in the vertical direction of the flow path in the mixing unit 121 and to suppress the pressure loss of the fluid, the flow direction length of the flow path convex part 14 is set to the communication part. It is desirable that the length be less than 3 times the length L in the flow direction. This makes it possible to realize a fluid mixer with a simple structure, in which different types of fluids are multi-layered to improve the mixing property, and the pressure loss is small and the blockage of the channel is less likely to occur.

  Other dimensions are the same as in the previous example, which improves the mixing performance, increases the production of reaction products, reduces the pressure loss, and prevents the blockage of the solid suspension. it can.

  FIG. 14 is an exploded perspective view showing the structure of the fluid mixer according to the eighth embodiment of the present invention. The fluid mixer is composed of five plates 1, 2, 3, 5, and 25 that are bonded to each other with the surfaces closely contacting each other. The uppermost plate is the upper lid 1 and is provided with two inflow holes 61 and 62 and one discharge hole 7. The lowermost plate is the lower lid 5. Between the upper lid 1 and the lower lid 5, an introduction plate 2 in which an introduction channel 10 for flowing a fluid 8 and an introduction channel 11 for flowing a fluid 9 are formed, and a communication plate in which a communication hole 22 and a communication hole 24 are formed. 25 and the mixing plate 3 in which the mixing channel 12 is formed are laminated. The mixing unit 121 is provided upstream of the mixing channel 12, and the channel convex part 14 and the mixing unit upstream end 20 are alternately provided three upstream of the mixing unit 121, as in the previous embodiment. ing. In the communication plate 25, three communication holes 22 having a width equal to or smaller than the width of the channel protrusion are provided corresponding to the position of the channel protrusion 14 upstream of the mixing channel. In addition, three communication holes 24 having a width equal to or less than the width of the mixing unit upstream end 20 are provided corresponding to the position immediately after the mixing unit upstream end 20, and the introduction channel 10 is introduced into the communication hole 22. The flow path 11 is installed so as to overlap the communication hole 24. Thereby, the fluid 8 flows into the flow path convex portion 14 upstream of the mixing portion via the communication hole 22, and the fluid 9 flows immediately after the downstream of the mixing portion upstream end portion 20 via the communication hole 24. In the mixing unit 121, the fluid 8 and the fluid 9 are in a multilayer state in the width direction. Furthermore, in this embodiment, the mixing channel 12 is contracted downstream of the mixing unit 121, and the interval between the fluid 8 and the fluid 9 that are in a multilayered state in the width direction is further reduced, so that mixing is promoted.

  Other dimensions are the same as in the previous examples, improve mixing performance, increase reaction product production, reduce pressure loss, and prevent blockage of solid suspension. Can do.

  FIG. 15 is a plan view of an essential part showing the structure of the mixing unit 121 of the fluid mixer according to another embodiment of the present invention. FIG. 15A is a diagram in which the width direction dimensions of the flow path convex portions 15 and 16 at the downstream end portion of the introduction flow path of the fluid mixer shown in the embodiment of FIGS. FIG. 15B is a diagram in which the opening dimensions in the width direction of the communication holes 22 and 24 of the fluid mixer shown in the embodiment of FIGS. Here, the shape of the communication hole is rectangular, but other shapes are also possible. FIG. 15C is a diagram in which the dimension in the width direction of the flow path convex portion 14 upstream of the mixing portion 121 of the fluid mixer shown in the embodiments of FIGS. FIG.15 (d) changes the dimension of the width direction of the flow-path convex part 14 upstream of the mixing part 121 of the fluid mixer shown in the Example of FIGS. 12-14, and the mixing part upstream end part 20. As shown in FIG. .

  15 (a), (b), (c) and (d), in the embodiment of FIGS. 1 to 14, the number of divisions of one of the different fluids is 3, but here the number of divisions is 4 Indicates. With respect to the channel width direction of the mixing unit 121, the flow velocity in the channel is large at the center of the channel and zero at the wall surface. Moreover, in the heterogeneous fluid layered alternately in the width direction, the fluid adjacent to the wall surface cannot diffuse in the wall direction. In FIG. 15 (a), the dimension in the width direction of the channel protrusions 15 and 16 at the downstream end of the introduction channel increases as it proceeds in the width direction from the center of the channel, and is the largest on the wall surfaces on both sides in the width direction. The width of the close channel convex portion is not more than half of the width of the adjacent channel convex portion. In FIG. 15 (b), the opening dimension in the width direction of the communication hole increases from the center of the upstream end of the mixing channel in the width direction, and is closest to the wall surfaces on both sides in the width direction of the upstream end of the mixing channel. The opening width of the communication hole is not more than half of the width of the adjacent opening. In FIG. 15 (c), the dimension in the width direction of the channel convex portion 14 upstream from the mixing channel increases as it proceeds in the width direction from the center of the channel, and the channel convexity closest to the wall surfaces on both sides in the width direction. The width of the part is not more than half of the width of the adjacent flow path convex part. In FIG. 15 (d), the dimension in the width direction of the flow path convex part 14 or the mixing part upstream end part 20 at the upstream end of the mixed flow channel increases from the flow channel center in the flow channel width direction, and the width direction. The width of the flow path convex part or the mixing part upstream end closest to the wall surfaces on both sides is less than half the width of the adjacent flow path convex part or mixing part upstream end.

  Thereby, since the spreading | diffusion of the width direction of the fluid 8 and the fluid 9 is equalize | homogenized, the distance of the flow direction in which mixing of a dissimilar fluid is completed can be shortened.

  FIG. 16 is an exploded perspective view showing an embodiment of the microreactor system according to the present invention. The heat exchanger 27 is superposed on the upper and lower surfaces of the fluid mixer 26 according to the embodiment of FIGS. 1 to 15 so that the surfaces are in close contact with each other and fixed by joining or bolting. A heat medium passage 31 through which the heat medium 30 flows is formed on one surface of the heat exchanger 27 by machining or the like. The fluid 8 and the fluid 9 flow from the inflow holes 61 and 62 at different positions, are mixed by the fluid mixer, and are discharged from the discharge hole 7 after the reaction is completed. The heat medium 30 flows in from the heat medium inflow hole 28, exchanges heat with the fluid mixer 26 while flowing through the heat medium flow path 31 formed on one side of the heat exchanger 27, and then flows out from the heat medium outflow hole 29. Is done.

  Thereby, since the fluid temperature can be controlled at the target reaction temperature, side reactions can be suppressed and the reaction yield can be improved. Here, since the fluid mixer 26 of the embodiment of FIGS. 1 to 15 is thin, the heat exchange efficiency is improved.

  According to the above embodiment, it is possible to provide a fluid mixer or a microreactor system equipped with a fluid mixer that can reduce pressure loss with a simple structure and prevent a channel from being blocked by a solid suspended matter.

  The fluid mixer according to the present invention efficiently mixes or reacts a plurality of fluids in a synthesis process of pharmaceuticals and chemical industrial products, and also mixes or reacts a plurality of reagents in an analytical apparatus for analytical chemistry and medical analysis. Can be used to implement.

The disassembled perspective view which shows the structure of the fluid mixer by the 1st Example of this invention. The partial top view which shows the structure of the fluid mixer of FIG. 1, and its sectional drawing. The disassembled perspective view which shows the structure of the fluid mixer by the 2nd Example of this invention. The disassembled perspective view which shows the structure of the fluid mixer by the 3rd Example of this invention. The partial top view which shows the structure of the fluid mixer of FIG. 4, and its sectional drawing. The disassembled perspective view which shows the structure of the fluid mixer by the 4th Example of this invention. The partial top view which shows the structure of the fluid mixer of FIG. 6, and its sectional drawing. The disassembled perspective view which shows the structure of the fluid mixer by the 5th Example of this invention. The partial top view which shows the structure of the fluid mixer of FIG. 8, and its sectional drawing. The disassembled perspective view which shows the structure of the fluid mixer by the 6th Example of this invention. FIG. 11 is a partial plan view and a cross-sectional view showing the structure of the fluid mixer of FIG. 10. The disassembled perspective view which shows the structure of the fluid mixer by the 7th Example of this invention. The partial top view which shows the structure of the fluid mixer of FIG. 12, and its sectional drawing. The disassembled perspective view which shows the structure of the fluid mixer by the 8th Example of this invention. The principal part top view which shows the structure of the mixing part of the fluid mixer by the other Example of this invention. The disassembled perspective view which shows one Example of the micro reactor system by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Upper lid, 2 ... Introduction plate, 3 ... Mixing plate, 4 ... Introduction plate, 5 ... Lower lid, 61, 62 ... Inflow hole, 7 ... Discharge hole, 8, 9 ... Fluid, 10, 11 ... Introduction flow path, DESCRIPTION OF SYMBOLS 12 ... Mixing flow path, 121 ... Mixing part, 122 ... Flow path, 14 (141-146) ... Flow path convex part upstream from mixing part, 15, 16 ... Flow path convex part of introduction flow path, 18, 19 ... Downstream end of introduction flow path, 20 ... mixing section upstream end, 21, 23, 25 ... communication plate, 22, 24 ... communication hole, 26 ... fluid mixer, 27 ... heat exchanger, 28 ... heat medium inflow hole 29 ... Heat medium outlet hole, 30 ... Heat medium, 31 ... Heat medium flow path.

Claims (18)

An introduction plate formed with an introduction channel for introducing a plurality of different fluids, a mixing plate formed with a mixing channel for receiving and mixing a plurality of different fluids, and the mixing of the mixing plate from the introduction channel of the introduction plate A plurality of different kinds of fluids in the width direction, each having a communication portion formed by closely contacting surfaces of a flat plate-like introduction plate , a mixing plate , and upper and lower lid plates so as to communicate with the flow path; The communication portion is formed at a position corresponding to immediately after the upstream end of the mixing flow path so as to be divided into a plurality of rows and alternately flow into the mixing flow path of the mixing plate in the width direction. Fluid mixer. The flow path length of the flow path convex portion is defined in claim 1, comprising a plurality of rows of flow path convex portions forming partition walls for guiding the fluid path at the upstream end portion of the mixing flow path. A fluid mixer characterized by being formed to be three times or less the flow direction length L of the communicating portion .   3. The partition wall according to claim 2, wherein the partition wall is formed of a structure formed between adjacent flow path protrusions arranged in parallel at an interval in the width direction upstream from the mixing flow path of the mixing plate. A fluid mixer characterized.   2. The upstream end of the mixing flow path according to claim 1, comprising two introduction plates, comprising a plurality of flow path protrusions arranged in parallel at intervals at the downstream end of the introduction flow path of the introduction plate. The two inlet plates and the two of the inlet plates so that the channel convex portions at the downstream ends of the two inlet channels alternately overlap in the width direction of the mixing channel from the both sides of the mixing plate A fluid mixer, wherein mixing plates are stacked.   2. The two introduction plates according to claim 1, wherein two communication plates are laminated between the mixing plate and the first introduction plate and between the mixing plate and the second introduction plate, respectively. A plurality of communication holes are disposed in a position corresponding to immediately after the upstream end portion of the mixing flow path in a single communication plate, and spaced apart in the width direction, and the plurality of communication holes of the two communication plates are arranged in the width direction. A fluid mixer characterized by being arranged in a staggered manner. The upstream side of the mixing plate of the mixing plate according to claim 3, comprising two introduction plates, a plurality of projections arranged in parallel at intervals at the downstream end of the introduction channel of the introduction plate, and a mixing channel of the mixing plate A plurality of flow path protrusions arranged in parallel to each other, and the flow path protrusions at the downstream end portions of the two introduction flow paths are disposed on both surfaces of the mixing plate. A fluid mixer, wherein the two introduction plates and the mixing plate are stacked so as to form a communication portion by alternately overlapping in the width direction of the mixing flow path.   4. The two introduction plates according to claim 3, wherein one communication plate is laminated between each of the introduction plates and the mixing plate, and the communication plates are arranged in parallel upstream of the mixing flow path. Corresponding to the positions of the plurality of flow path protrusions arranged side by side, a plurality of communication holes are installed at intervals so as to alternately face the width direction of the mixing flow path from both surfaces of the mixing plate. Fluid mixer.   The mixed flow of the mixing plate according to claim 3, wherein the introduction plate includes two introduction flow paths, and a plurality of flow path protrusions arranged in parallel at intervals in the width direction at the downstream end of the introduction flow path. A plurality of flow path convex portions arranged in parallel in the width direction upstream from the path, and arranged in the communication plate provided between the introduction plate and the mixing plate, arranged in the introduction plate and the mixing plate It is drilled corresponding to the position of the flow path convex part, and is arranged so that fluids from two different introduction flow paths alternately flow into the plurality of flow path convex parts upstream from the mixing flow path in the width direction. A fluid mixer comprising a communication hole formed.   In Claim 1, two said introduction plates are provided, the some flow path convex part arranged in parallel at intervals in the width direction upstream from the mixing flow path of the said mixing plate, and two said introduction plates A first fluid communication portion formed at an interval in the width direction by overlapping a downstream end portion of one introduction flow channel and a flow channel convex portion upstream of the mixing flow channel of the mixing plate; Laminated between one introduction plate and the mixing plate, and spaced in the width direction so that the downstream of the introduction flow channel and the flow channel immediately after the upstream end of the mixing flow channel of the mixing plate communicate with each other. A fluid mixer comprising a plurality of communication holes arranged side by side and a communication plate forming a communication portion for the second fluid.   In Claim 1, The said introduction plate is equipped with two introduction flow paths, The several flow path convex part arranged in parallel with the space | interval upstream from the mixing flow path of the said mixing plate, The said introduction plate, and the said mixing plate A plurality of first communication holes communicating with the communication plate provided between the downstream of one introduction channel of the introduction plate and the projection of the channel upstream of the mixing channel of the mixing plate; A fluid mixer comprising: a plurality of second communication holes that communicate a downstream of the other introduction flow path of the introduction plate and a flow path immediately after the upstream end of the mixing flow path of the mixing plate. . The length in the flow direction of each flow path protrusion of each of the mixing plates in claim 9 or 10 is less than or equal to three times the flow direction length L of the communication portion facing the plurality of flow path protrusions. A fluid mixer characterized by the above.   In Claim 1, 4 or 5, the plurality of communication portions formed in parallel so as to communicate from the downstream of the introduction flow path of the introduction plate to immediately after the upstream end portion of the mixing flow path of the mixing plate have their widths Is increased from the center of the flow path toward the outside, and the width of the communication portion at the outermost end is equal to or less than half the width of the communication portion adjacent to the inside thereof.   In claim 2, the interval between two adjacent partition walls arranged in parallel upstream from the mixing channel increases from the center of the channel toward the outside, and the interval between the partition wall and the side wall at the outermost end is A fluid mixer characterized in that it is not more than half of the interval between partition walls adjacent to the inside.   In any one of Claims 3 and 6-8, as for the said several flow path convex part arranged in parallel upstream from the said mixing flow path, those width | variety increases as it goes outside from a flow path center, and is the outermost side. The fluid mixer, wherein the width of the channel convex portion at the end is equal to or less than half the width of the channel convex portion adjacent to the inside thereof.   In any one of Claims 9-11, as for the upstream edge part of the said several flow path convex part or the said mixed flow path which were arranged in parallel upstream from the said mixed flow path, those widths are outside from the flow path center. The width of the convex portion at the outermost end or the upstream end portion of the mixing channel is not more than half the width of the convex portion of the adjacent channel or the upstream end portion of the mixing channel. A fluid mixer characterized by the above.   16. The fluid mixer according to any one of claims 1 to 15, wherein the mixing channel is formed by narrowing the channel downstream of the mixing unit and narrower than the upstream end thereof.   17. The mixing channel or the channel width after contraction is 1 mm or more, and the channel width is divided by the number of divisions in which one of the different fluids is multilayered. A fluid mixer, characterized in that the formed value is less than 1 mm.   18. The microreactor system according to any one of claims 1 to 17, wherein a heat exchanger or a heat source is placed in contact with an upper surface and / or a lower surface of the fluid mixer.

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