JP6718806B2 - Fluid distribution device - Google Patents

Description

The present invention relates to a fluid circulation device.

2. Description of the Related Art Conventionally, there is known a fluid circulation device that circulates a fluid inside, in which a large number of microchannels that circulate the fluid are provided inside. For example, Patent Document 1 below discloses an example of such a fluid circulation device.

Specifically, Patent Document 1 discloses a microchannel heat exchanger as an example of a fluid circulation device. In this microchannel heat exchanger, a high temperature part layer in which a plurality of microchannels for circulating a high temperature fluid are arranged and a low temperature part layer in which a plurality of microchannels for circulating a low temperature fluid are arranged are laminated via a partition wall. It has a laminated body. In the laminate, heat exchange is performed between the high temperature fluid flowing in the microchannel of the high temperature part layer and the low temperature fluid flowing in the microchannel of the low temperature part layer.

JP, 2010-286229, A

In the conventional fluid distribution device, when the blockage occurs in the microchannel, the fluid does not flow into the flow path after the closed portion, and as a result, the operating rate of the fluid distribution device may be significantly reduced.

Specifically, for example, when a fluid contains foreign matter such as highly viscous mechanical oil or rust, the foreign matter may cause blockage in the microchannel. Further, when the temperature of the fluid is lowered to a very low temperature by heat exchange, freezing of the fluid may cause blockage in the microchannel. When the blockage occurs in the microchannel, the fluid cannot flow through the microchannel, so that the efficiency of the processing performed by circulating the fluid decreases. In the fluid circulation device, it is desired to continuously circulate the fluid for a certain period of time to perform the process, but when the efficiency of the process due to the circulation of the fluid decreases due to the occurrence of the clogging, the clogging is removed. It is necessary to perform maintenance work. In this case, the circulation of the fluid has to be stopped, and as a result, the operating rate of the fluid circulation device is significantly reduced.

An object of the present invention is to provide a fluid circulation device capable of preventing a significant reduction in processing efficiency due to fluid circulation even when a microchannel is clogged, and preventing a reduction in operating rate. Is to provide.

Provided by the invention is the hydrodynamic flow device for circulating the fluid, the fluid distribution apparatus, a plurality of microchannels column respectively constituted by a plurality of microchannels for circulating a pre-Symbol fluid respectively, at least The structure has therein one communication part and the inside thereof. The plurality of microchannels are arranged so as to be arranged in an arrangement direction that is a direction intersecting with the extension direction that is the extension direction of each of the plurality of microchannels, and the plurality of microchannel rows include both the extension direction and the arrangement direction. Are arranged in a parallel direction that is a direction perpendicular to the, and the at least one communication part connects and communicates the microchannels that are adjacent to each other in the arrangement direction.

In this fluid flow device, when blockage occurs at a position upstream of the communication part in one of the two adjacent microchannels that are communicated by the communication part, the other microchannel passes through the communication part. Fluid can be directed to one microchannel. Therefore, the part of the one microchannel in which the blockage has occurred, which is downstream of the connection point of the communication part, can contribute to the processing by the fluid flow. For this reason, it is possible to prevent the efficiency of the processing by the circulation of the fluid from being significantly reduced, and as a result, the processing by the circulation of the fluid can be continuously performed without stopping the circulation of the fluid for a certain period. Therefore, it is possible to prevent a decrease in the operating rate of the fluid circulation device.

In the fluid distribution device, wherein the plurality of microchannels column, the plurality of first micro-channel in the structure a first microchannel train consisting of a plurality of first microchannels for circulating a first fluid respectively the and those arranged so as to be aligned in the arrangement direction intersecting with each of the extending direction in the structure, the together are spaced apart from said first micro channel sequence in said parallel direction first A second microchannel array including a plurality of second microchannels arranged in parallel with the microchannel array and allowing the second fluid to flow therethrough, wherein the structure has a structure in which the structure is viewed from the parallel direction. And an array range in which the first microchannel array is arrayed, and a non-array range located outside the array range and in which the first microchannel array is not arrayed, the at least one communication It is preferable that the part includes a non-arrangement range communication part that is provided in the non-arrangement range and communicates the adjacent second microchannels.

According to this configuration, since the non-arrangement range communication portion does not overlap the first microchannel in the parallel direction, the wall thickness of the structure in the parallel direction is not limited to the first microchannel, and the non-arrangement range communication portion locally Will never decrease. Therefore, it is possible to prevent the strength of the structure from locally decreasing.

In this case, each of the second microchannels has an introduction portion that is a portion arranged in the non-arranged range and extending over a predetermined range on the downstream side from the inlet of the second microchannel, It is preferable that the non-arrangement range communication part communicates the introduction parts of the adjacent second microchannels.

According to this configuration, the second fluid is introduced from the introduction portion of the adjacent second microchannel to the introduction portion which is a portion of the second microchannel near the downstream side of the inlet where the clogging is likely to occur, through the non-arrangement range communication portion. I can guide you. Therefore, the region of the second microchannel on the downstream side of the inlet that is likely to be clogged can contribute to the processing by the circulation of the second fluid.

In the fluid distribution device, wherein at least one Kemah Lee black channel before adjacent in communication with the communicating portion includes a bent portion, and a downstream portion that is continuous with the downstream side of the bent portion, said at least one communication It is preferable that the part includes a downstream communication part that connects the downstream parts of the adjacent microchannels.

According to this configuration, the fluid can be guided from the downstream portion of the adjacent microchannel to the downstream portion of the microchannel, which is continuous to the downstream side of the bent portion where the clogging is likely to occur, through the downstream communication portion. Therefore, the region of the microchannel on the downstream side of the bent portion, which is likely to be clogged, can contribute to the processing by the fluid flow.

In the fluid distribution device, wherein the plurality of microchannels column, the plurality of first micro-channel in the structure a first microchannel train consisting of a plurality of first microchannels for circulating a first fluid respectively the and those arranged so as to be aligned in the arrangement direction intersecting with each of the extending direction in the structure, the together are spaced apart from said first micro channel sequence in said parallel direction first A second microchannel array including a plurality of second microchannels arranged in parallel with the microchannel array and allowing the second fluid to flow therethrough, wherein the structure has a structure in which the structure is viewed from the parallel direction. And an array range in which the first microchannel array is arrayed, and a non-array range located outside the array range and in which the first microchannel array is not arrayed, the at least one communication The part includes a plurality of array range communication parts that are provided in the array range and that allow parts of the adjacent second microchannels that are arranged in the array range to communicate with each other, and the plurality of array range communication parts are When the structures are viewed from the parallel direction, it is preferable that the portions of the second microchannels adjacent to each other that are communicated by the array range communication portion are arranged side by side in the array direction.

According to this configuration, as in the case where the plurality of arrangement range communicating portions are arranged in the direction that coincides with the extending direction of the first microchannels that overlap with them, the plurality of arrangement range communicating portions and the first microchannels form a structure inside It is possible to prevent a portion where the strength is locally reduced from being formed.

In the fluid distribution apparatus, the communication unit, that have a channel width less the width of the microchannel.

According to this configuration, it is possible to prevent the pressure resistance performance of the structure of the fluid circulation device from decreasing at the location of the communication portion.

As described above, according to the present invention, even when the microchannel is clogged, it is possible to prevent the efficiency of the processing due to the flow of the fluid from significantly lowering and prevent the lowering of the operating rate. A possible fluid distribution device can be provided.

FIG. 3 is a schematic perspective view of a fluid distribution device according to an embodiment of the present invention. It is a top view of the 1st board|substrate which comprises the structure of the fluid distribution apparatus shown in FIG. It is a top view of the 2nd board|substrate which comprises the structure of the fluid circulation apparatus shown in FIG. FIG. 6 is a partial cross-sectional view of a laminated portion of a first substrate having a first flow path formed therein and a second substrate having a second flow path formed in the structure. It is a figure which shows the structure of the vicinity of the inlet of the 2nd flow path of the structure of one embodiment of this invention, and an inlet, and the flow way of the 2nd fluid at the time of blockage|occlusion occurring in the inlet. It is a figure which shows the structure of the 2nd flow path in the A area|region in FIG. 3, and the flow way of the 2nd fluid when obstruction|occlusion occurs in the 1st bending part. FIG. 6 is a view corresponding to FIG. 5 in the vicinity of an inlet and an introduction portion of a second flow path of a structure according to a comparative example having no communication portion. FIG. 7 is a view corresponding to FIG. 6 showing a second flow path of a structure according to a comparative example having no communication portion.

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

FIG. 1 shows the overall configuration of a fluid circulation device 1 according to an embodiment of the present invention. The fluid circulation device 1 according to the present embodiment is a heat exchanger, and performs the process of exchanging heat between the fluids while circulating the first fluid and the second fluid inside. The fluid circulation device 1 includes a structure 2, a first supply header 3, a second supply header 4, a first discharge header 5, and a second discharge header 6.

The structure 2 includes a large number of first flow paths 21 (see FIG. 2) that are microchannels that allow a first fluid to flow therethrough, and a large number of second flow paths 22 that are microchannels that allow a second fluid to flow therethrough (see FIG. 3 ). ) And a plurality of communicating portions 30 that connect the second flow paths 22 adjacent to each other and communicate with each other, and have a rectangular parallelepiped shape. The first channel 21 is an example of the first microchannel in the present invention, and the second channel 22 is an example of the second microchannel in the present invention. The structure 2 includes a plurality of first substrates 11 each provided with a plurality of first flow paths 21, and a plurality of second substrates 12 each provided with a plurality of second flow paths 22 and a plurality of communication parts 30. Have.

The first substrate 11 and the second substrate 12 are flat plates having the same rectangular outer shape when viewed from one side in the thickness direction. The first substrate 11 and the second substrate 12 are made of, for example, a stainless steel plate. The structure 2 is a laminated body formed by alternately laminating the first substrate 11 and the second substrate 12 and bonding them to each other. Accordingly, in the structure 2, the plurality of first flow paths 21 arranged on the first substrate 11 and the plurality of second flow paths 22 arranged on the second substrate 12 are alternately arranged in the stacking direction of the substrates. Lined up. The structure 2 has four side surfaces perpendicular to the plate surfaces of the stacked substrates 11 and 12. The four side surfaces are formed by the end faces corresponding to the four sides of the substrates 11 and 12, respectively.

Specifically, each of the substrates 11 and 12 is perpendicular to the pair of short end faces that form a pair of short sides of the rectangular outer shape, and is a pair of long sides of the rectangular outer shape. Each has a pair of long end faces that form a side. The four side surfaces of the structure 2 include a pair of short side surfaces 7 and 8 and a pair of long side surfaces 9 and 10. One short side surface 7 is formed by continuing one short end surface of each of the stacked substrates 11 and 12, and the other short side surface 8 is continuous from the other short end surface of each of the stacked substrates 11 and 12. It is formed by doing. One short side surface 7 and the other short side surface 8 are side surfaces opposite to each other. The one long side surface 9 is formed by continuing one long end surface of each of the stacked substrates 11 and 12, and the other long side surface 10 is formed of the other long end surface of each of the stacked substrates 11 and 12. Are formed by continuing. One long side surface 9 and the other long side surface 10 are side surfaces opposite to each other. The short side surfaces 7 and 8 and the long side surfaces 9 and 10 are arranged perpendicular to each other. The lengths of the long side surfaces 9, 10 in the extending direction of the long sides of the respective substrates 11, 12 are larger than the lengths of the short side surfaces 7, 8 in the extending direction of the short sides of the respective substrates 11, 12.

As shown in FIG. 2, a plurality of first grooves 23 forming a plurality of first flow paths 21 are formed on one plate surface of each first substrate 11. Each first groove 23 is formed by etching, for example. On one plate surface of each first substrate 11, each first groove 23 is arranged so as to be arranged at intervals in the extending direction of the short side of the first substrate 11. Further, each first groove 23 extends linearly in parallel with the long side of the first substrate 11 from one short end face of the first substrate 11 to the other short end face. Each first groove 23 has an arcuate cross section as shown in FIG. 4 in a cross section perpendicular to its extending direction. The openings of the first grooves 23 on one plate surface of the first substrate 11 are sealed by the second substrate 12 laminated on the plate surface, so that the plurality of first substrates arranged on the one plate surface are sealed. One flow path 21 is formed.

Each of the first flow paths 21 linearly extends in the structure 2 in a direction parallel to the long side surfaces 9 and 10, and is arranged so as to be arranged at intervals in a direction orthogonal to the extending direction. There is. Each first flow path 21 has a semicircular cross section in a cross section perpendicular to its extending direction. Each of the first flow paths 21 has an inlet 21a (see FIG. 2) for receiving the first fluid at one end thereof, and an outlet 21b for flowing out the first fluid flowing through the first flow path 21 is provided on the opposite side of the inlet 21a. At the end of. The inlet 21a is open on one short side surface 7 of the structure 2, and the outlet 21b is open on the other short side surface 8 of the structure 2.

A plurality of second grooves 32 forming a plurality of second flow paths 22 are formed on one plate surface of each second substrate 12 (see FIG. 3 ). Each second groove 32 is formed by etching, for example. Each second groove 32 has an arc-shaped cross section similar to the cross section of the first groove 23 as shown in FIG. The openings of the respective second grooves 32 on one plate surface of the second substrate 12 are sealed by the first substrate 11 laminated on the plate surface, so that the plurality of first grooves arranged on the one plate surface. Two channels 22 are formed.

In the present embodiment, each second flow path 22 has a large meandering shape as a whole. Each of the second flow paths 22 has an inlet 22a that receives the second fluid at one end thereof, and has an outlet 22b that allows the second fluid that has flowed through the second flow path 22 to flow out at an end portion opposite to the inlet 22a. .. The inlet 22a is open in a region of the one long side surface 9 of the structure 2 near the other short side surface 8. That is, the inlet 22 a is arranged at a position near the outlet 21 b of the first flow path 21 on the one long side surface 9 of the structure 2. Further, the outlet 22b is opened in a region of the other long side surface 10 of the structure 2 near the one short side surface 7. That is, the outlet 22b is arranged on the other long side surface 10 of the structure 2 at a position near the inlet 21a of the first flow path 21.

In the structure 2, the plurality of second flow paths 22 are parallel to each other in a direction perpendicular to both a direction in which the first flow paths 21 extend and an arrangement direction of the plurality of first flow paths 21 on the first substrate 11. In addition, the first flow paths 21 are arranged on the first substrate 11 at intervals. The parallel direction is a direction coinciding with the stacking direction of the substrates 11 and 12. The plurality of second flow passages 22 on the second substrate 12 are arranged in parallel with the rows of the plurality of first flow passages 21 on the first substrate 11, and serve as a second fluid flowing through the second flow passages 22. The first fluid flowing through the first flow path 21 can exchange heat with each other.

As shown in FIG. 3, each of the second flow paths 22 includes first to seventh horizontal straight line portions 41, 42, 43, 44, 45, 46, 47 and first to sixth vertical straight line portions 51, 52,. 53, 54, 55, 56 and first to twelfth bent portions 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72.

The first lateral straight line portion 41 is a portion that linearly extends from the inlet 22a toward the other long side surface 10 in parallel with the short side surfaces 7 and 8. That is, one end of the first lateral straight line portion 41 is provided on the one long side surface 9, and the inlet 22a is provided at one end thereof.

The first bent portion 61 is connected to an end portion of the first lateral straight portion 41 near the other long side surface 10. The first bent portion 61 is a portion in which the second flow path 22 changes its direction from the extending direction of the first lateral straight line portion 41 toward the one short side surface 7 along a direction parallel to the long side surface 10.

The first vertical straight line portion 51 is a portion that is connected to the downstream side of the first bent portion 61 and linearly extends parallel to the long side surfaces 9 and 10.

The second bent portion 62 is connected to an end portion of the first vertical straight portion 51 near the one short side surface 7. The second bent portion 62 is a portion in which the second flow path 22 changes its direction from the direction in which the first vertical straight line portion 51 extends toward the one long side surface 9 along a direction parallel to the short side surface 8.

The second horizontal straight line portion 42 is a portion that is connected to the downstream side of the second bent portion 62 and linearly extends in parallel with the short side surfaces 7 and 8.

The third bent portion 63 is connected to an end portion of the second horizontal straight portion 42 near the one long side surface 9. The third bent portion 63 is a portion in which the second flow path 22 changes its direction from the extending direction of the second horizontal straight portion 42 toward the one short side surface 7 along the direction parallel to the long side surface 9.

The second vertical straight line portion 52 is a portion that is connected to the downstream side of the third bent portion 63 and linearly extends parallel to the long side surfaces 9 and 10.

The fourth bent portion 64 is connected to an end portion of the second vertical straight portion 52 near the one short side surface 7. The fourth bent portion 64 is a portion where the second flow path 22 changes its direction from the direction in which the second vertical straight line portion 52 extends toward the other long side surface 10 along a direction parallel to the short side surface 8.

The third lateral straight line portion 43 is a portion that is connected to the downstream side of the fourth bent portion 64 and linearly extends parallel to the short side surfaces 7 and 8.

Then, the fifth bent portion 65 is connected to the end portion of the third lateral straight portion 43 near the other long side surface 10. Further, the third vertical straight line portion 53, the sixth bent straight line portion 66, the fourth horizontal straight line portion 44, the seventh bent line portion 67, the fourth vertical straight line portion 54, and the eighth bent line portion 68 are provided downstream from the fifth bent line portion 65. , 5th horizontal straight line portion 45, 9th bending straight line portion 69, 5th vertical straight line portion 55, 10th bending line portion 70, 6th horizontal straight line portion 46, 11th bending line portion 71, 6th vertical straight line portion 56, 12th bending line The portion 72 and the seventh horizontal straight line portion 47 are connected in this order.

Fifth bent portion 65, third vertical linear portion 53, sixth bent portion 66, fourth horizontal linear portion 44, seventh bent portion 67, fourth vertical linear portion 54, eighth bent portion 68 and fifth horizontal linear portion. The structure of the region consisting of 45 includes the first bent portion 61, the first vertical straight line portion 51, the second bent straight portion 62, the second horizontal straight line portion 42, the third bent portion 63, and the second vertical straight line. The configuration is the same as that of the region including the portion 52, the fourth bent portion 64, and the third lateral straight portion 43. In addition, in the region formed by the ninth bent portion 69, the fifth vertical straight line portion 55, the tenth bent straight portion 70, the sixth horizontal straight line portion 46, the eleventh bent straight portion 71, the sixth vertical straight line portion 56, and the twelfth bent portion 72. The configuration is such that the first bent portion 61, the first vertical linear portion 51, the second bent portion 62, the second horizontal linear portion 42, the third bent portion 63, the second vertical linear portion 52, and the second vertical linear portion 52. The configuration is the same as that of the region including the four bent portions 64.

The seventh horizontal straight line portion 47 extends to the other long side surface 10, and the outlet 22b of the second flow path 22 is provided at one end on the long side surface 10.

When the structure 2 is viewed from the parallel direction (the stacking direction), the structure 2 has an array range 2a in which a plurality of first flow paths 21 are arrayed, and when viewed from the parallel direction. And a pair of non-arranged areas 2b which are located on both outer sides of the arranged area 2a and in which the first flow paths 21 are not arranged. The array range 2a occupies most of the structure 2 when viewed from the parallel direction, and is arranged at the center of the structure 2 in the array direction of the first flow paths 21. One non-arrangement range 2b is a range from one long side surface 9 of the structure 2 to the end of the arrangement range 2a on the one long side surface 9 side. The other non-arrangement range 2b is a range from the other long side surface 10 of the structure 2 to the end of the arrangement range 2a on the other long side surface 10 side.

The inlet 22a of each second flow path 22 is arranged in one non-arranged range 2b. Each second flow path 22 has an introduction part 22c, a derivation part 22d, and an effective area 22e.

The introduction portion 22c is a portion of the second flow path 22 disposed in one non-arranged range 2b. That is, the introduction portion 22c is a portion of the second flow path 22 extending from the inlet 22a to a predetermined small range on the downstream side. In other words, the introduction portion 22c is a portion near the upstream end of the first lateral straight line portion 41 and a portion near the inlet 22a. Specifically, the introduction portion 22c is a portion of the second flow path 22 from the inlet 22a to the boundary between the one non-arrangement range 2b and the one arrangement range 2a.

The lead-out portion 22d is a portion that is continuous to the upstream side of the outlet 22b and that is arranged in the other non-arrangement range 2b. That is, the lead-out portion 22d is a portion near the downstream end of the seventh horizontal straight line portion 47 and a portion near the outlet 22b. Specifically, the lead-out portion 22d is a portion of the second flow path 22 from the outlet 22b to the boundary between the other non-arrangement range 2b and the arrangement range 2a.

The effective area 22e is a portion through which the second fluid is circulated so that the second fluid exchanges heat with the first fluid flowing through the first flow path 21 provided in the arrangement range 2a. The effective area 22e is a portion of the second flow path 22 other than the introducing portion 22c and the deriving portion 22d, that is, a portion between the introducing portion 22c and the deriving portion 22d. Specifically, the effective area 22e is a portion of the second flow path 22 arranged in the array range 2a.

Each communication part 30 (refer to FIGS. 3, 5, and 6) connects and connects the second flow paths 22 adjacent to each other in the arrangement direction of the second flow paths 22 in the second substrate 12. The plurality of communication sections 30 include a plurality of introduction section communication sections 75 and a plurality of effective area communication sections 76.

The introduction part communication part 75 connects the introduction parts 22c of the second flow paths 22 adjacent to each other in the second substrate 12 to make them communicate with each other. The introduction part communication part 75 is entirely provided in the non-arrangement range 2b. That is, the introduction part communication part 75 is an example of the non-arrangement range communication part in the present invention. The introduction part communication part 75 is provided between adjacent parts of the introduction parts 22c. The plurality of introduction part communicating portions 75 provided on the second substrate 12 are arranged in a line in a direction orthogonal to the direction in which the introduction part 22c extends. The introduction portions 22c of all the second flow paths 22 provided on the second substrate 12 are communicated with each other by the plurality of introduction portion communication portions 75.

The plurality of introducing-portion communicating portions 75 are formed by introducing-portion communicating grooves 75a formed in the non-arrangement range 2b of the second substrate 12 so as to open on one plate surface of the second substrate 12. Specifically, in the non-arranged range 2b, one introduction part communication groove 75a is formed so as to be orthogonal to each second groove 32. The introduction part communication groove 75a has an arc-shaped cross section in a cross section perpendicular to the direction in which the introduction part communication groove 75a extends. The introduction part communication groove 75 a has the same maximum depth as the maximum depth of the second groove 32. Between the introduction portions 22c adjacent to each other by sealing the opening of the introduction portion communication groove 75a formed on the one plate surface of the second substrate 12 with the first substrate 11 laminated on the plate surface. An introducing portion communicating portion 75 is formed in the. The introduction portion communication portion 75 has a width Wi that is equal to or smaller than the passage width Wa of the second passage 22 (the passage width of the introduction portion 22c). In addition, the width Wi of the introduction part communication part 75 is orthogonal to both the arrangement direction of the site|part (introduction part 22c) which the said introduction part communication part 75 communicates among the some 2nd flow paths 22, and the said parallel direction. It is the distance between both ends of the introduction part communication part 75 in the direction. In addition, the distance between the inlet 22a and the introduction portion communication portion 75 in the direction orthogonal to the arrangement direction and the parallel direction, that is, the direction in which the introduction portion 22c extends is more than the flow passage width Wa of the second flow passage 22. Is also getting bigger.

The plurality of effective region communicating portions 76 connect and communicate the effective regions 22e of the second flow passages 22 adjacent to each other in the arrangement direction of the second flow passages 22. The effective area communication part 76 is an example of the arrangement range communication part in the present invention. The effective area communication part 76 is provided in the array range 2a. In the present embodiment, the plurality of effective area communicating portions 76 include a plurality of first communicating portions 78, a plurality of second communicating portions 79, and a plurality of third communicating portions 80. The first communication portion 78 communicates with the most upstream portion of the effective area 22e among the first, second, and third communication portions 53, 54, 55. The second communication portion 79 communicates with a portion of the effective area 22e on the downstream side of the first communication portion 78. The third communication portion 80 communicates with a portion of the effective area 22e that is further downstream than the second communication portion 79.

Specifically, the first communication portion 78 connects and connects the first vertical straight line portions 51 that are continuous to the downstream side of the first bent portion 61 in the adjacent second flow paths 22. The first vertical straight line portion 51 is an example of the downstream portion of the present invention, and the first communication portion 78 is an example of the downstream portion of the present invention. The first communication portion 78 is provided between adjacent ones of the respective first vertical straight line portions 51. The plurality of first communication portions 78 provided on the second substrate 12 are arranged in a line in a direction orthogonal to the extending direction of the first vertical straight line portions 51 when viewed from the parallel direction. Further, the plurality of first communication portions 78 are arranged in a line in a direction orthogonal to a direction in which the first flow passages 21 that overlap with each other as viewed from the stacking direction extend. The plurality of first communication portions 78 allow the first vertical straight line portions 51 of all the second flow paths 22 provided on the second substrate 12 to communicate with each other.

The plurality of first communication portions 78 are formed by the first communication grooves 78a formed in the second substrate 12 so as to open on one plate surface of the second substrate 12. Specifically, in the second substrate 12, one first communication groove 78a is formed so as to be orthogonal to the portion of each second groove 32 that constitutes the first vertical straight line portion 51. The first communication groove 78a has an arcuate cross section in a cross section perpendicular to the extending direction thereof. Further, the first communication groove 78a has a shape as shown in FIG. 4 in a cross section along the extending direction thereof. The first communication groove 78a has the same maximum depth as the maximum depth of the second groove 32. The opening of the first communication groove 78a formed on the one plate surface of the second substrate 12 is sealed by the first substrate 11 laminated on the plate surface, so that the adjacent first vertical straight line portions 51 are formed. A first communication portion 78 is formed between the two. The first communication portion 78 has a width W1 that is not more than the flow passage width Wa of the second flow passage 22 (the flow passage width of the first vertical straight line portion 51). The width W1 of the first communication portion 78 is set with respect to both the arrangement direction and the parallel direction of the portion (first vertical straight line portion 51) of the plurality of second flow paths 22 that the first communication portion 78 communicates with. Is a distance from one end to the other end of the first communication portion 78 in a direction orthogonal to each other.

The second communication portion 79 connects and connects the second vertical straight line portions 52 that are continuous to the downstream side of the third bent portion 63 in the adjacent second flow paths 22. The plurality of second communication portions 79 provided on the second substrate 12 are configured similarly to the plurality of first communication portions 78. The second vertical straight line portion 52 is an example of the downstream portion in the present invention, and the second communication portion 79 is an example of the downstream portion communication portion in the present invention.

The third communication portion 80 connects and connects the third vertical straight line portions 53 that are continuous to the downstream side of the fifth bent portion 65 in the adjacent second flow paths 22. The plurality of third communication portions 80 provided on the second substrate 12 are configured similarly to the plurality of first communication portions 78. The third vertical straight line portion 53 is an example of the downstream portion in the present invention, and the third communicating portion 80 is an example of the downstream portion communicating portion in the present invention.

The first supply header 3 (see FIGS. 1 and 2) is attached to the structure 2 and distributes the first fluid to the inlets 21a of all the first flow paths 21 provided in the structure 2. To supply. The first fluid is, for example, a low temperature fluid. The first supply header 3 is attached to the one short side surface 7 where the inlet 21a of the first flow path 21 is open. The first supply header 3 entirely covers all the inlets 21a that are open on the one short side surface 7. As a result, the space inside the first supply header 3 communicates with each inlet 21a. A supply pipe (not shown) is connected to the first supply header 3, and the first fluid supplied to the first supply header 3 through the supply pipe flows from the space inside the first supply header 3 to each inlet 21a. It is to be distributed.

The first discharge header 5 (see FIGS. 1 and 2) is attached to the structure 2 and receives the first fluid flowing out from the outlets 21b of all the first flow paths 21 provided in the structure 2. Is. The first discharge header 5 is attached to the other short side surface 8 where the outlet 21b of the first flow path 21 opens. The first discharge header 5 entirely covers all the outlets 21b that are open on the other short side surface 8. As a result, the space inside the first discharge header 5 communicates with each outlet 21b. A discharge pipe (not shown) is connected to the first discharge header 5, and the first fluid flowing out from each outlet 21b into the space inside the first discharge header 5 is discharged through this discharge pipe. There is.

The second supply header 4 (see FIGS. 1 and 3) is attached to the structure 2 and distributes the second fluid to the inlets 22a of all the second flow paths 22 provided in the structure 2. To supply. The second fluid is, for example, a fluid having a higher temperature than the first fluid. The second supply header 4 is attached to the one long side surface 9 where the inlet 22a of the second flow path 22 is open. The second supply header 4 entirely covers all the inlets 22a that open on the one long side surface 9. As a result, the space inside the second supply header 4 communicates with each inlet 22a. An unillustrated supply pipe is connected to the second supply header 4, and the second fluid supplied to the second supply header 4 through the supply pipe flows from the space inside the second supply header 4 to each inlet 22a. It is to be distributed.

The second discharge header 6 (see FIGS. 1 and 3) is attached to the structure 2 and receives the second fluid flowing out from the outlets 22b of all the second flow paths 22 provided in the structure 2. Is. The second discharge header 6 is attached to the other long side surface 10 where the outlet 22b of the second flow path 22 opens. The second discharge header 6 entirely covers all the outlets 22b that are open on the other long side surface 10. As a result, the space inside the second discharge header 6 communicates with each outlet 22b. A discharge pipe (not shown) is connected to the second discharge header 6, and the second fluid flowing out from each outlet 22b into the space inside the second discharge header 6 is discharged through this discharge pipe. There is.

In the fluid distribution device 1 according to the present embodiment, since the introduction portions 22c of the second flow paths 22 that are adjacent to each other are communicated by the introduction portion communication portion 75, the introduction portion 22c is provided at a position upstream of the introduction portion communication portion 75. When blockage occurs, the second fluid can be introduced from the introduction part 22c adjacent to the introduction part 22c where the blockage has occurred to the downstream side of the closed part of the introduction part 22c through the introduction part communication part 75.

Specifically, for example, the second fluid may be high-pressure gas, and highly viscous oil may be mixed in the gas as foreign matter. Further, the second fluid may be a liquid, and the rust generated in the external pipe may be mixed in the liquid as a foreign matter. In these cases, when the second fluid is distributed from the second supply header 4 to the inlets 22a of the respective second flow paths 22, the foreign matter contained in the second fluid introduces a certain second flow path 22. Occlusion 100 (see FIG. 5) may occur at the inlet 22a of the portion 22c. In addition, the second fluid may be cooled by heat exchange with the first fluid and frozen, and blockage 100 due to the freezing may occur at the inlet 22a. In these cases, the second fluid is not introduced from the inlet 22a where the blockage 100 has occurred to the introducing portion 22c which is connected to the downstream side of the inlet 22a. However, in the present embodiment, since the introduction portion 22c in which the blockage 100 has occurred communicates with the adjacent introduction portion 22c via the introduction portion communication portion 75, the blockage 100 occurs in the adjacent introduction portion 22c. The second fluid is introduced into the introduction portion 22c through the introduction portion communication portion 75.

On the other hand, as in the comparative example shown in FIG. 7, in the configuration in which the introduction portions 22c of the adjacent second flow paths 22 are not in communication with each other, when the blockage 100 occurs at the inlet 22a of the introduction portion 22c, the introduction portion 22c is introduced into the introduction portion 22c. Does not allow the second fluid to flow. In this case, since the second fluid cannot flow through the second flow path 22 in which the blockage 100 has occurred at the inlet 22a, the second flow path 22 does not contribute to the heat exchange process in the fluid distribution device 1 at all. become unable. As a result, the efficiency of the heat exchange process in the fluid circulation device 1 is significantly reduced, so it is necessary to perform maintenance work to stop the circulation of the fluid and remove the blockage 100, and the operating rate of the fluid circulation device 1 is reduced. To do.

On the other hand, in the present embodiment, as described above, since the second fluid is introduced from the adjacent introduction part 22c to the introduction part 22c on the downstream side of the obstruction 100 through the introduction part communication part 75, the obstruction 100 occurs at the inlet 22a. The generated second fluid 22 can be circulated in the second fluid 22 to contribute to the heat exchange process with the first fluid flowing in the first fluid path 21. Therefore, it is possible to prevent the efficiency of the heat exchange process in the fluid circulation device 1 from being significantly reduced, and to continue the heat exchange process without performing maintenance work for removing the blockage 100 for a certain period. it can. Therefore, it is possible to prevent a decrease in the operating rate of the fluid circulation device 1.

Further, since the introduction part communication part 75 is provided in the non-arrangement range 2b, the first flow path 21 and the introduction part communication part 75 provided in the arrangement range 2a overlap each other in the parallel direction, and the overlapping part thereof is formed. It is possible to prevent the strength of the structure 2 of the fluid circulation device 1 from locally decreasing.

Further, in the present embodiment, since the first vertical straight line portions 51 of the adjacent second flow paths 22 are communicated with each other by the first communication portion 78, the first flow path 22 is located upstream of the first communication portion 78 in the second flow path 22. When a blockage occurs at the position, the second fluid is provided from the second flow channel 22 adjacent to the second flow channel 22 in which the blockage has occurred to the downstream side of the blocked portion of the second flow channel 22 through the first communicating portion 78. Can be introduced.

Specifically, for example, as shown in FIG. 6, a blockage 101 may occur at the first bent portion 61 of the second flow path 22. At the bent portion of the flow path, since the direction of the flow of the fluid changes, foreign matter such as highly viscous oil is less likely to flow downstream, and clogging is likely to occur. When the blockage 101 occurs at the first bent portion 61 of the second flow path 22 as described above, the second fluid does not flow from the upstream side to the downstream side of the second flow path 22. In the first vertical straight line portion 51 continuous to the downstream side of the bent portion 61, the second fluid is introduced from the first vertical straight line portion 51 of the adjacent second flow path 22 through the first communication portion 78.

On the other hand, as in the comparative example shown in FIG. 8, in the configuration in which the first vertical straight line portions 51 of the adjacent second flow paths 22 do not communicate with each other, the second flow path in which the blockage 101 is generated at the first bent portion 61. The second fluid cannot be circulated in 22. Therefore, the second flow path 22 cannot contribute to the heat exchange process in the fluid circulation device 1 at all. Also in this case, as in the case where the blockage 100 occurs at the inlet 22a, it is necessary to stop the flow of the fluid and perform the maintenance work to remove the blockage 101, and the operation rate of the fluid circulation device 1 is reduced. On the other hand, in this embodiment, as described above, the second fluid flows from the first vertical straight line portion 51 of the adjacent second flow path 22 to the first vertical straight line portion 51 on the downstream side of the blockage 101 through the first communication portion 78. Is introduced, heat is exchanged with the first fluid flowing through the first flow passage 21 by causing the second fluid to flow in a region on the downstream side of the first communication portion 78 of the second flow passage 22 where the blockage 101 has occurred. Can contribute to the processing of Therefore, in the present embodiment, it is possible to prevent the operating rate of the fluid circulation device 1 from decreasing.

Further, in the present embodiment, the second vertical straight line portions 52 of the adjacent second flow paths 22 are communicated with each other by the second communication portion 79. Therefore, when a blockage occurs at a position upstream of the second communication portion 79 in the second flow path 22, for example, when a blockage occurs in the third bent portion 63, the second flow path in which the blockage has occurred. The second fluid can be introduced from the second flow passage 22 adjacent to 22 to the downstream side of the closed portion (the third bent portion 63) of the second flow passage 22 through the second communication portion 79.

Further, similarly, in the present embodiment, the third vertical straight line portions 53 of the adjacent second flow paths 22 are communicated with each other by the third communication portion 80. Therefore, when the second flow path 22 is clogged at a position upstream of the third communicating portion 80, for example, when the fifth bent portion 65 is clogged, the second flow path in which the clog has occurred. The second fluid can be introduced from the second flow passage 22 adjacent to 22 to the downstream side of the closed portion (the fifth bent portion 65) of the second flow passage 22 through the third communication portion 80.

Due to the effects obtained by the second communication portion 79 and the third communication portion 80, it is possible to prevent the operating rate of the fluid circulation device 1 from decreasing as in the case of the first communication portion 78.

In addition, in the present embodiment, the plurality of first communication portions 78, the plurality of second communication portions 79, and the plurality of third communication portions 80 all overlap with the communication portions 78, 79, 80 in the stacking direction. They are arranged in a direction orthogonal to the first flow path 21. Therefore, as in the case where the arranging direction of the communication portions is the same as the extending direction of the first flow path that overlaps the communication portions, the communication portion and the first flow path form a portion of the structure 2 in which the strength is reduced. Can be prevented.

In addition, in the present embodiment, since the introduction portion communication portion 75 and the first to third communication portions 78, 79, 80 have a width equal to or smaller than the flow passage width of the second flow passage 22, the introduction portion communication portion 75 and It is possible to prevent the pressure resistance performance of the structure 2 from being deteriorated at the locations of the first to third communicating portions 78, 79, 80.

Further, the fluid circulation device according to the present invention is not necessarily limited to the one having the above configuration. For example, the following configuration can be adopted as the fluid circulation device according to the present invention.

The communication part according to the present invention is not necessarily limited to the introduction part communication part and the first to third communication parts. That is, you may provide the communicating part which connects the 2nd flow path which adjoins to the location other than the location in which the said 1st-3rd communicating part was provided in the 2nd board|substrate, and connects the 2nd flow path adjacent to each other. For example, the plurality of communication portions may be arranged in a line along the direction in which the bent portions of the respective second flow paths are arranged at a position adjacent to the downstream side of the bent portions of the respective second flow paths.

The arrangement and shape of the first flow path may be other than those described above, and the arrangement and shape of the second flow path may be other than those described above. For example, both the first flow path and the second flow path may have a linearly extending shape. Further, both the first flow path and the second flow path may have a meandering shape. Further, it is possible to adopt various shapes other than the linear shape and the meandering shape as the shapes of the first flow path and the second flow path.

A first flow path (first groove) is provided on one plate surface of the substrate, and a second flow path (second groove) is provided on the other plate surface of the substrate on which the first flow path (first groove) is provided. A groove) may be provided.

Further, the plurality of communication parts do not necessarily have to be arranged in a line. That is, the plurality of communicating portions may be arranged with a deviation from each other in the direction along the fluid flow direction in the second flow path. In this case, it is possible to further suppress the partial reduction in strength of the structure of the fluid circulation device.

Further, all of the plurality of second flow paths arranged on one second substrate do not necessarily need to communicate with each other. That is, it suffices that at least one set of second flow paths adjacent to each other among the plurality of second flow paths arranged on the second substrate communicate with each other by the communication portion.

Further, the maximum depth of the communication groove forming the communication portion may be smaller than the maximum depth of the second flow path groove.

Further, the fluid circulation device according to the present invention is not necessarily limited to the one used as a heat exchanger. For example, the fluid circulation device according to the present invention may be used in a reactor that causes a chemical reaction in the fluid while circulating the fluid in the flow path. Further, the fluid circulation device according to the present invention may be used for an extraction device for extracting a specific component from the fluid to be extracted into the fluid while allowing the fluid to be extracted and the fluid to be extracted to flow through the flow path.

1 Fluid Circulation Device 2 Structure 2a Arrangement Range 2b Non-Arrangement Range 21 First Flow Path 22 Second Flow Path 22a Inlet 22c Introducing Section 51 First Vertical Straight Section (Downstream Section)
52 Second vertical straight line portion (downstream portion)
53 Third vertical straight line portion (downstream portion)
61 First bent portion 63 Third bent portion 65 Fifth bent portion 75 Introductory portion communication portion (non-arranged range communication portion)

Claims (5)

A fluid circulation device for circulating a fluid,
Comprising a plurality of microchannels string consisting respectively, the small without even one of the communication portion is formed on the inner structure of a plurality of microchannels for circulating a pre-Symbol fluid respectively,
The plurality of microchannels are arranged so as to be arranged in an arrangement direction that is a direction intersecting with an extension direction that is an extension direction of each of the plurality of microchannels.
The plurality of microchannel rows are arranged in a parallel direction which is a direction perpendicular to both the extending direction and the array direction,
The at least one communication unit connects the microchannels adjacent to each other in the arrangement direction to communicate with each other,
The fluid communication device, wherein the communication portion has a width equal to or smaller than the flow channel width of the microchannel. The plurality of microchannel rows is a first microchannel row composed of a plurality of first microchannels through which a first fluid respectively flows, and the plurality of first microchannels are arranged in the structure in the respective extending directions. Arranged in a line in the arrangement direction intersecting with each other, and arranged in the structure in the parallel direction at a distance from the first microchannel row and in parallel with the first microchannel row. A second micro-channel array comprising a plurality of second micro-channels that are arranged and each circulate a second fluid,
The structure has an array range in which the first microchannel arrays are arrayed when the structures are viewed from the parallel direction, and an array of the first microchannel arrays located outside the array range. Has a non-sequenced range that is not
The fluid circulation device according to claim 1, wherein the at least one communication unit includes a non-arrangement range communication unit that is provided in the non-arrangement range and that allows the adjacent second microchannels to communicate with each other. Each of the second microchannels has an introduction portion that is a portion that is arranged in the non-arranged range and that extends from the inlet of the second microchannel to a predetermined range on the downstream side,
The fluid circulation device according to claim 2, wherein the non-arrangement range communication part communicates the introduction parts of the second microchannels adjacent to each other. Wherein the at least one Kemah Lee black channel before adjacent in communication with the communicating portion includes a bent portion, and a downstream portion that is continuous with the downstream side of the bent portion,
The fluid circulation device according to any one of claims 1 to 3, wherein the at least one communication part includes a downstream communication part that communicates the downstream parts of the adjacent microchannels. The plurality of microchannel rows is a first microchannel row composed of a plurality of first microchannels through which a first fluid respectively flows, and the plurality of first microchannels are arranged in the structure in the respective extending directions. Arranged in a line in the arrangement direction intersecting with each other, and arranged in the structure in the parallel direction at a distance from the first microchannel row and in parallel with the first microchannel row. A second micro-channel array comprising a plurality of second micro-channels that are arranged and each circulate a second fluid,
The structure has an array range in which the first microchannel arrays are arrayed when the structures are viewed from the parallel direction, and an array of the first microchannel arrays located outside the array range. Has a non-sequenced range that is not
The at least one communication part includes a plurality of array range communication parts that are provided in the array range and that allow parts of the adjacent second microchannels that are arranged in the array range to communicate with each other,
The plurality of array range communicating portions are arranged in the array direction in which the portions of the adjacent second microchannels that are communicated by the array range communicating portion are arrayed, when the structures are viewed from the parallel direction. The fluid circulation device according to claim 1.

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