JP2008157592A - Stacked integrated self heat exchange structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact heat exchange structure with high heat efficiency suitable for temporarily heating a fluid. <P>SOLUTION: Planar fluid passages partitioned by stacked planar partition walls 17 serving as heat exchange surfaces extend in one direction. An opening 21 allowing a fluid to flow in the section of each of the alternate stacked planar fluid passages is formed at one end of each of the planar passages in the extending direction. An opening 22 allowing the fluid to flow out of the section of each of the alternate planar fluid passages in which the openings are not formed in the areas above are formed in the other area in the side surface or the other side surface in proximity to the side surface. An opening 4 for communicating the planar fluid passages adjacent to each other with the external space of the structure interposed therebetween with all the sections of all the planar flow passages is formed in at least one side surface positioned at the end in the extending direction on the opposite side of the opening allowing the fluid to flow in and flow out. The uniformity of the gaps between the planar flow passages and the strength of the structure are secured by stacking the planar partition walls 28 having corrugated irregularities. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a self-heat exchanging structure, and more specifically, a laminated integrated heat exchanging structure capable of efficiently and temporarily heating a fluid using heat generated inside the heat exchanging body. About.

  Temporarily heating a fluid is performed according to various demands in various industrial fields. For example, in the chemical industry field, in many chemical apparatuses, a raw material is heated in advance to a temperature suitable for a target chemical reaction.

  Also, so-called malodorous gases or volatile organic solvents (VOC) can generally be converted to odorless and harmless gases by combustion or catalytic combustion, but in order to initiate and continue these combustion, organic substances must be reduced. A large amount of relatively cool gas, including concentration, must be preheated before entering the combustion zone. Further, regarding exhaust gas from an internal combustion engine such as an automobile engine, in general, exhaust gas from a gasoline engine contains harmful substances such as carbon monoxide, hydrocarbons, and nitrogen oxides, and exhaust gas from a diesel engine further includes particulates. Is included. These harmful substances can be purified by the catalytic action of an oxidation catalyst, a three-way catalyst, a selective reduction catalyst, etc., but at the same time, improvement in fuel consumption is also demanded. As the fuel efficiency is improved, the temperature of the engine exhaust gas inevitably decreases. Therefore, in order to perform purification by such catalytic action with high efficiency, it is also necessary to preheat.

On the other hand, for automobile exhaust gas, by improving the air-fuel ratio control of the engine and the technology of fuel post-injection, for example, about several thousand ppm of CO should be included in the exhaust gas in the presence of O ₂ without significantly reducing fuel consumption. Is possible. In the prior art, an apparatus or device that integrates a catalytic reaction and a heat exchanging function is proposed that can utilize such exothermic components and preheat the exhaust gas advantageously by heat exchanging action to efficiently purify the exhaust gas. (Patent Literature 1, Patent Literature 2, Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6).

  In order to increase the effect of preheating, the heat transfer area of the heat exchanging section must be increased, and the scale of the apparatus or system will be increased. However, in automobile exhaust gas purification or small-scale VOC generation source countermeasures Therefore, there is a strong demand to keep the scale of devices and the like compact. In the above prior art, in order to ensure this compactness, a counter-current plate type heat exchange structure with high heat exchange performance is basically employed. In the plate-type heat exchange structure, the low-temperature and high-temperature fluid flow paths are arranged alternately as flat-type flow paths with a narrow gap in the laminated structure. The biggest problem in designing and manufacturing is to obtain a structure that can achieve sealing between the roads or between each flow path and the outside of the apparatus.

  For example, Patent Document 1 does not provide a specific structure for separating a fluid inflow portion and an outflow portion.

  In patent documents 2-5, the solution is achieved by using one corrugated heat exchanger plate with respect to said subject. In this structure, the inflow portion and the outflow portion of the fluid are arranged so as to be opposed to the central portion of the direction in which the waveform extends across the corrugated heat transfer plate, respectively, so that the waveform of the corrugated heat transfer plate extends. By sealing only both parallel end portions, separation of the inflow portion and the outflow portion and separation of the flow path of the low temperature fluid and the flow path of the high temperature fluid can be realized. However, in this structure, the flow path on the low temperature side and the high temperature side communicate with each other at both ends in the direction intersecting the ridgeline of the corrugated heat transfer body, so that the temperature at which the target reaction is performed becomes an extreme value (maximum). Regions occur in two places in the device. This makes it difficult to control the temperature for the intended reaction, and increases the amount of heat released from the apparatus, leading to a decrease in preheating efficiency.

  In Patent Documents 2 to 6, in a structure using a single corrugated heat transfer body or a structure in which rectangular flow paths are stacked, the arrangement of an inflow portion and an outflow portion with one region having an extreme temperature is provided. A method is also presented, but in this case one end in the direction that intersects the direction in which the corrugated heat transfer body or square ridgeline extends must be sealed. However, this portion is a portion where a corrugation with a very small interval or a cross section of a parallel laminate is exposed, and it is extremely difficult to manufacture the seal while ensuring high durability.

In Patent Document 6, further, the above-mentioned problem is solved by forming lateral holes for communicating individual honeycomb channels in a row in every other vicinity of the inflow portion of the integral honeycomb structure. It has been. However, even in this method, it is very difficult to manufacture the plurality of lateral holes having a sufficiently large size while maintaining the mechanical strength of the honeycomb structure, and further, performing necessary sealing.
Japanese National Patent Publication No. 7-506684 JP 2000-189757 A International Patent Publication No. 2002/29218 Pamphlet JP-T-2003-524728 JP 2004-69293 A International Patent Publication No. 2004/99577 pamphlet

  The present invention has been made in view of the above circumstances, and an object of the present invention is a further improvement of the self-heat exchange structure, which is relatively easy to manufacture and has a high heat An object of the present invention is to provide a compact integrated self-heat exchange structure having exchange efficiency and low pressure loss.

As a result of intensive studies to achieve the above object, the inventors have provided a plurality of planar flow channels partitioned by stacked planar partition walls that serve as heat exchange surfaces. It has been found that the above object can be achieved by a self-heat exchange structure capable of exchanging heat between upstream and downstream of a fluid passing through a channel.
The present invention has been completed based on these findings, and is as follows.

(1) A self-heat exchange structure capable of exchanging heat between a fluid passing through an outward path and a fluid passing through a return path,
It has an integrally formed structure with a plurality of planar flow paths partitioned by stacked planar partition walls that serve as heat exchange surfaces,
In the plurality of planar flow paths, the forward path and the return path extend in one direction,
A side surface of the structure located at one end in the extending direction is divided into a region for injecting fluid in the forward path and a region for discharging fluid from the return path, and the former region includes the plurality of planar shapes. Every other opening for injecting fluid is provided in the cross section of the flow path, and in the latter area, a plurality of other planar flow path cross sections in which the opening is not provided are provided for discharging the fluid. An opening is provided,
The side surface located at the other end in the extension direction of the structure is provided with an opening for communicating the forward path and the return path through the external space of the structure with respect to all the cross sections of the planar flow path. A laminate-integrated self-heat exchange structure characterized by comprising:
(2) The laminated integrated self-heat exchange structure according to (1), wherein the bisected regions are provided on different side surfaces.
(3) The opening for communicating the adjacent planar flow paths comprises an opening for once flowing out from the forward path and an opening for re-inflowing into the return path, and each opening is a different region. And (1) or (2), wherein the laminated integrated self-heat exchange structure is provided in every other planar channel cross section.
(4) The laminated integrated self-heat exchange structure according to (3), wherein the different regions are provided on different side surfaces.
(5) The laminate-integrated self-heat exchange structure according to any one of (1) to (4) above, wherein the planar partition has a planar shape having a periodic groove extending in a direction intersecting with the extending direction.
(6) The catalyst according to any one of (1) to (5) above, wherein a catalyst for promoting an exothermic reaction due to a component contained in the fluid is disposed in the vicinity of the opening for communicating the adjacent planar channels. Laminated integrated self-heat exchange structure.

  The laminate-integrated self-heat exchange structure of the present invention is relatively easy to manufacture, and has both a high heat exchange rate, low pressure loss performance, and compactness. A catalyst support having a geometric surface area comparable to that of a conventional honeycomb structure can be easily manufactured by adjusting the shape of the partition walls or the plate spacers. In addition, a relatively smooth flow path can be formed though it is extremely narrow, and heat transfer can be achieved by using a laminate of corrugated planar partition walls, because the heat transfer area is large and the fluid easily collides with the heat transfer surface. Therefore, it can be expected that the heat exchange performance is equal to or higher than that of the conventional plate heat exchanger. Furthermore, since heat generation and heat exchange are completed in the same structure, there is little heat loss. Due to these effects, a large temperature increase effect can be obtained with a small heating energy for the fluid to be treated.

Embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an embodiment of a laminated integrated self-heat exchange structure according to the present invention. FIG. 1 is viewed from a direction perpendicular to a planar partition wall surface of the structure housed in a casing. FIG. 2 is an external view of the structure as seen from the direction of the side surface provided with an opening region for inflow and discharge, and FIG. 3 is an opening for communicating the forward path and the return path. It is the external view seen from the direction of the side surface which provided.
In these figures, 1 is a laminated integrated self-heat exchange structure, 2 is an area having an inflow port, 3 is an area having an exhaust port, and 4 is an opening for communicating the planar flow paths of the forward path and the return path. The side surface 5 has a side surface along the extending direction of the flow path whose entire surface is sealed, 6 is a side surface opposite to the side surface 5, 7 is a casing, 8 is an inlet provided in the casing, and 9 is a drain provided in the casing. Outlet, 10 is a packing and heat insulating material, 11 is a space for communicating the forward path and the return path, 12 is a spacer for forming the space 11, 13 is a flow in a planar flow path on the forward path inside the structure, 14 is a flow in a planar flow path on the return path inside the structure, 15 is a heater, 16 is a catalyst arrangement region, 17 is a planar partition, 18 is an inlet, 19 is a discharge port, 20 is a sealing material, 21 Indicates the opening of the forward path, and 22 indicates the opening of the return path.

As shown in the figure, the structure 1 has an integrally formed structure including a plurality of planar flow paths partitioned by stacked planar partition walls 17 serving as heat exchange surfaces, and the plurality of surfaces. The forward channel and the return channel extend in one direction (vertical direction in FIG. 1).
An opening 18 for inflow of fluid is provided only in a plurality of stacked planar flow paths (outward paths) in at least a part of the side surface 2 that is one end in the extending direction, and another region 3 on the side surface. Is provided with an opening 19 for outflow only in every other flow path (return path) in which no opening is provided in the region. The fluid that has entered from each inflow port has a flow path configuration that extends in the entire width with respect to the extending direction in each outward path that spreads in a planar shape. Moreover, it is set as the flow-path form which can discharge the fluid which spread over the whole width | variety of the expansion | extension direction in each return path from each discharge port. On the other hand, the side surface 4 of the end portion in the extending direction opposite to the regions 2 and 3 is provided for communicating the forward path and the return path via the space 11 outside the structure 1. Opening is provided. Further, the side surfaces 5 and 6 along the extending direction are entirely sealed.

  The operation of the laminated integrated self-heat exchange structure 1 of the present invention is as follows. The fluid to be processed which has entered from the inlet 8 of the casing 7 enters every other planar flow path (outward path) in the structure 1 through the opening 18 provided in the partial region 2 on one side surface. As shown as flow 13 in FIG. 1, the extending direction of the structure 1 is descended. The fluid reaching the other side surface 4 once exits to the space 11 outside the structure 1 from the forward opening 21 provided in the side surface 4. Next, it enters the structure 1 again through the space 11 and the opening 22 in the return path, and ascends as shown as a flow 14 in FIG. Finally, the gas is discharged out of the system through the opening 19 communicating with only the return path provided in another area 3 adjacent to the area 2 and further through the discharge port 9 of the casing 7.

In the present invention, the flow path as described above is formed, and further, suitable heating means, for example, the electric heater 15 facing the region 4 or the combustible component in the fluid and the structure in the vicinity of the space 11 which is the folded portion of the fluid. 1, by providing a combination of oxidation catalysts 16 disposed in the vicinity of the region 4 inside and heating the fluid, the fluid in the return path can be heated to a temperature higher than that in the forward path. However, the temperature can be further increased according to the amount of heat transferred from the high temperature return fluid to the low temperature outward fluid through the planar partition.
For example, when the heat recovery rate of the structure is 80% under a certain flow rate condition and the fluid rising temperature by only the heating means is 50K, the effect of heat recovery is added, so that at the folded part from the forward path to the return path The rising temperature with respect to the inlet reaches 250K, which is five times that when there is no heat loss through the outer wall or the like.

  The material for forming the structure 1 of the present invention, that is, the material for the planar partition, the sealing material 20 for the non-openings in the regions 2 and 3, and the sealing materials for the side surfaces 5 and 6 are used at the maximum operating temperature Any material can be used as long as it can withstand and finally the structure 1 can be made into a monolithic structure, and a single material or a material having a different composition can be used for each part. I do not care. Various thermosetting plastics can be used if used at a relatively low temperature, and ceramics such as cordierite, mullite, and silicon carbide can be used at higher temperatures.

FIG. 4 is a view showing another embodiment of the present invention together with a casing.
In FIG. 1, the area provided with the opening for inflow and the opening for discharge is provided in the same side surface. However, in this embodiment, the same end is formed in the extending direction of the structure 1. It is provided on two different side surfaces that are close to each other. The angle formed by these two side surfaces is preferably 60 to 150 °, more preferably 90 to 120 °. By providing such an angle, heat exchange occurs between the fluid immediately after flowing in and immediately before discharging, and the fluid easily spreads to the full width of the forward / return path of 1 so that heat exchange performance is improved. be able to.
FIG. 5 is a view showing another embodiment of the structure 1 similar to FIG. 4 together with a casing.
In addition, the side surface provided with the inflow port and the discharge port may be a curved surface such as a cylindrical side surface instead of the flat surface as illustrated in the above.

FIG. 6 is a view showing still another embodiment of the present invention together with a casing.
In this embodiment, the areas where the forward opening 21 and the backward opening 22 on the side surface 4 for communicating the forward path and the backward path are provided only in every other one of the planar channels. Are provided separately on different sides of the structure. In this embodiment, the inlet and outlet are separated on different side surfaces as in the case of FIG. 4, but the inlet and outlet are formed in different regions within the same side as in FIG. It may be. In any case, the region 1 having the inlet and the region provided with the opening of the forward path on the side surface 4 and the region 3 having the discharge port and the region provided with the opening of the return path on the side surface 4 are the structures 1. In order to improve the heat exchange performance, it is desirable to be positioned diagonally with respect to the extending direction.

In any of the above modes, the gap between the planar partition walls is maintained at a constant interval on the average, and the fluid flowing in from the region 2 spreads to the full width in the extending direction 1 and flows toward the side surface 4 in the forward path. In addition, in order to maintain the strength of the structure, high heat exchange performance can be achieved by allowing the fluid folded back on the side surface 4 to flow out to the full width in the return path and then discharged from the region 3. It is important to get.
As a method for that purpose, a plurality of protrusions having the same height may be formed over the entire surface of the planar partition wall. The protrusions only need to be arranged in a shape and density that allows fluid to flow without great resistance in both the extending direction of the structure 1 and the direction intersecting with the extending direction. Although the average density is almost equal, they may be arranged irregularly.
As a method of forming the structure having such protrusions, for example, a protrusion shape is formed in advance on each planar partition wall material before the curing process by pressing, and an adhesive is coated on the surface as necessary. Then, after laminating a plurality of planar partition walls so as to be bonded at the protrusions, and further increasing the adhesiveness of the contacts by applying vibration as necessary, it may be integrally formed by performing a curing process.

FIG. 7 shows another embodiment for forming a clearance channel between planar partition walls that satisfies the above-mentioned conditions. FIG. 8 shows the structure 1 shown in FIG. It is the external view seen from the side surface which provided.
The structure shown in FIGS. 7 and 8 is a structure of the form shown in FIG. 4 in which plate-like spacers having corrugated irregularities are arranged in each planar flow path. In the forward path, the side surface provided with the inflow port first extends in parallel with the side surface with the discharge port, then bends and extends in parallel with the extending direction of the structure 1 to reach the side surface 4. Similarly, the edge of the plate-like spacer placed on the return path first extends from the side surface 4 in parallel with the extending direction of the structure 1 and then bends in the vicinity of the discharge port to extend in parallel with the side surface having the inflow port. To the side with the outlet. Providing such a spacer increases the strength of the structure as well as improves the heat exchange performance by allowing the fluid to flow equally over the width of the flow path in the forward and backward paths.

  The structure shown in FIG. 9 has a structure in the form shown in FIG. 6 in which plate-like spacers having corrugated irregularities are arranged in each planar flow channel in the same manner as described above. In this case, the corrugated ridgeline of the spacer has two bent portions.

As another method of forming an average uniform planar flow path between the planar partition walls serving as heat transfer surfaces, a plurality of planar partition walls having periodic grooves extending in a direction intersecting with the extending direction are mutually connected. It may be laminated.
FIG.10 and FIG.11 shows the one form, FIG.11 is the external view seen from the side surface which provided the inflow port and the discharge port.
As shown in these drawings, the planar partition has a waveform having a ridge line extending in a direction intersecting with the extending direction of the structure 1. The adjacent planar partition walls 28 have a waveform having a ridge line extending in a direction intersecting with the extending direction of the structure 1, and the ridge lines of adjacent planar partition walls are extended in different directions. As a result, a gap channel is formed between adjacent corrugated partition walls that extends in the extending direction of the structure 1 and the direction intersecting with the extending direction.

In this embodiment, in the structure similar to FIG. 4 in which the inlet and the outlet are formed on different side surfaces, the two extending directions of the corrugated ridge line are the side surface where the outlet port is provided and the inlet port on the return path. Each side is parallel to the side. Further, only the lower side of the corrugated cross section of the planar partition wall 28 is sealed with the side surface provided with the inflow port and the outflow port. Thereby, as shown in FIG. 11, the area | region with an inflow port and a discharge port is isolate | separated and formed in each of two side surfaces. On the other hand, since both of the ridge lines in the two directions intersect with the side surface 4 for communicating the forward path and the return path, both the flow paths are completely opened on the side surface 4. When the planar partition walls have such a corrugated shape, the partition area increases as compared to a flat surface, and the flow is disturbed because the flow paths corresponding to the corrugated grooves cross each other, so that the heat exchange performance is improved. Further, in order for the fluid to flow in the extending direction of the structure, the grooves having different corrugations must flow in a zigzag manner as shown in FIG. 10, so that the flow is constantly divided inside the structure. By rejoining, the flow velocity of each part becomes uniform. This also has the effect of improving the heat exchange performance.
In addition, although the structure of the form of FIG. 4 is illustrated here, the structure of the form of FIG. 1, 5 or 6 can be similarly formed using a corrugated planar partition.

In addition, an evenly uniform planar flow path is formed between the planar partition walls that become the heat transfer surface, and as another method for improving the heat exchange performance, the planar partition walls are corrugated and provided with protrusions. It is good also as a form.
FIG. 12 shows an example. In this mode, the waveforms of the adjacent planar partition walls 29 have the same phase, and the extending direction of the ridge line is arranged in a direction perpendicular to the extending direction of the structure (in FIG. 12, a direction perpendicular to the drawing). Yes. In this way, as shown by the flow lines 31 and 32 in FIG. 12, the fluid collides with the corrugated partition wall surface in both the forward and backward flow paths and is continuously bent in the flow path direction. Since the process proceeds in the extending direction, heat exchange between the partition wall and the fluid is promoted.

In the present invention, in order to increase the temperature of the fluid in the structure 1, it is necessary to heat the fluid in the vicinity of the side surface 4. As this method, as shown in FIGS. 1, 4, and 5, a panel-like heater may be disposed so as to be in close contact with the side surface 4. Or as shown in FIG. 6, what is necessary is just to arrange | position the heater of the form which a fluid can pass in the flow path for a fluid to return. Alternatively, as shown in FIGS. 1, 4, 5, and 6, a catalyst that promotes an exothermic reaction due to components contained in the fluid may be disposed inside the structure 1 near the side surface 4.
As a method for arranging the catalyst, there are a method of filling the planar flow channel as pellets, a method of coating the surface of the planar partition walls, or the plate spacer 25 shown in FIG.

Examples of the component contained in the fluid include organic components such as CO and hydrocarbons. These may be contained in the fluid to be treated from the beginning, or may be artificially added to the fluid before entering the structure in order to obtain a necessary heating amount. On the other hand, as the catalyst, for example, a catalyst having a white metal element such as Pt or Pd as an active component or other general oxidation catalyst may be used. These components are easily completely oxidized on the catalyst in the presence of O ₂ to be converted into CO ₂ or H ₂ O and generate heat of reaction to heat the fluid. By this and the heat recovered by heat exchange, the temperature of the fluid passing through the space 11 that is a turn-back portion from the forward path to the return path can be significantly increased. For example, if the heat recovery rate of the structure is 80% and the main component of the fluid passing through the structure 1 is air and contains 0.5% CO, this CO is completely contained on the oxidation catalyst. The amount of heat generated when oxidized and converted to CO ₂ is such that the fluid is raised by about 48K, but when there is no heat loss through the outer wall of the structure due to the effect of heat recovery, The rising temperature based on the inlet at the turn-back portion from the forward path to the return path reaches 240K, which is five times as high.

  Due to the performance of the structure of the present invention described above, even in a chemical reaction that involves only a small amount of heat, such as catalytic oxidation of low-concentration VOCs, only the heat energy generated by the reaction can be obtained without applying external heating energy. It becomes possible to maintain a sufficiently high temperature and continue the reaction. Alternatively, the temperature of the reaction layer can be reduced by using an electric heater in combination with an electric heater, or by using the catalytic reaction heat of an exothermic component added to the exhaust gas or artificially in small amounts so that the detoxification reaction cannot be performed. It is possible to raise to the required height with energy loss. As described above, the present invention can be used in a reaction section of an apparatus that simultaneously performs preheating and catalytic reaction in a chemical reaction process. In particular, it is effective to use it as a catalyst support in a reaction part in a catalytic combustion purification device for polluted air containing bad odor or low concentration volatile organic solvent (VOC), or an exhaust gas purification device for an internal combustion engine such as an automobile engine. It is.

The figure which showed one form of a lamination integrated self heat exchange structure with a casing 1 is an external view of the structure shown in FIG. 1 as viewed from the side in which an inlet and an outlet are provided. 1 is an external view of the structure shown in FIG. 1 as viewed from the side provided with an opening for communication between the forward path and the return path. The figure which showed the laminated integrated self-heat exchange structure with the casing which provided the area with the inlet and outlet on different sides Figure showing a different type of laminated integrated self-heat exchange structure with casings, with areas with inlets and outlets on different sides The figure which showed the lamination | stacking integrated self-heat exchange structure with the casing where the area | region which provided the opening part of the outward path for connecting the adjacent planar flow path and the opening part of a return path was isolate | separated into the different side surface of a structure FIG. 4 is a diagram showing a state in which corrugated plate spacers are arranged in a planar flow path in the structure of FIG. The external view seen from the side which provided the inflow port and the outflow port of the structure of FIG. FIG. 6 is a view showing a state in which corrugated plate spacers are arranged in a planar flow path in the structure of FIG. The figure which shows the thing of the wavy structure which has the ridgeline which the adjacent planar partition extended in the different direction 10 is an external view of the structure of FIG. 10 as viewed from the side where the inlet and the outlet are provided. A view of the flow of a structure in which wavy planar partition walls having protrusions are stacked, viewed in a cross section perpendicular to the partition surface and parallel to the extending direction of the structure

Explanation of symbols

1: Stacked and integrated self-heat exchange structure 2: Area with inflow port 3: Area with discharge port 4: Side face with opening for communication between forward and return planar flow paths 5: The entire surface is sealed 6: Side face opposite to the side face 7: Casing 8: Inlet provided in the casing 9: Outlet provided in the casing 10: Packing and heat insulating material 11: Outward path and return path Space for communication 12: Spacer for forming the space 11 13: Flow in the planar flow path on the forward path inside the structure 14: Flow in the planar flow path on the return path inside the structure 15: Heater 16: Catalyst arrangement region 17: Planar partition wall 18: Inlet 19: Discharge port 20: Sealing material 21: Outward opening 22: Return opening 23: Ridge of corrugated plate spacer arranged on the outward side 24 : Corrugated plate placed on the return path Edge of spacer 25: Plate spacer 26: Edge of corrugated planar partition wall 27: Edge of corrugated planar partition wall adjacent to ridge line 26 28: Corrugated planar partition wall 29: Corrugated planar partition wall with protrusions 30: Structure extension direction 31: Streamline in forward path 32: Streamline in backward path

Claims (6)

Inside, a self-heat exchange structure capable of exchanging heat between the fluid passing through the forward path and the fluid passing through the return path,
It has an integrally formed structure with a plurality of planar flow paths partitioned by stacked planar partition walls that serve as heat exchange surfaces,
In the plurality of planar flow paths, the forward path and the return path extend in one direction,
A side surface of the structure located at one end in the extending direction is divided into a region for injecting fluid in the forward path and a region for discharging fluid from the return path, and the former region includes the plurality of planar shapes. Every other opening for injecting fluid is provided in the cross section of the flow path, and in the latter area, a plurality of other planar flow path cross sections in which the opening is not provided are provided for discharging the fluid. An opening is provided,
The side surface located at the other end in the extension direction of the structure is provided with an opening for communicating the forward path and the return path through the external space of the structure with respect to all the cross sections of the planar flow path. A laminate-integrated self-heat exchange structure characterized by comprising:   The laminated monolithic self-heat exchange structure according to claim 1, wherein the divided regions are provided on different side surfaces.   The opening for communicating the adjacent planar flow paths is composed of an opening for once flowing out from the forward path and an opening for re-inflowing into the return path. The laminated integrated self-heat exchange structure according to claim 1 or 2, characterized in that it is provided in a cross section of every other planar flow path.   The multilayer integrated self-heat exchange structure according to claim 3, wherein the different regions are provided on different side surfaces.   The laminated integrated self-heat exchange structure according to any one of claims 1 to 4, wherein the planar partition has a planar shape having a periodic groove extending in a direction intersecting with the extending direction. .   6. The catalyst according to claim 1, wherein a catalyst that promotes an exothermic reaction due to a component contained in the fluid is disposed in the vicinity of an opening for communicating the adjacent planar channels. Multi-layer self-exchange structure.

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