JP2014169809A - Laminate structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To measure a temperature within a laminate structure.SOLUTION: A laminate structure (catalyst reactor 1) comprises: a tube plate 23 which is interposed between adjacent passages 21, 22, and performs heat transfer between fluids which flow in the respective passages; and corrugated fins 211, 221 which are brazed in a state of being laminated on the tube plate, and arranged in the passages. The tube plate has: a pipe 235 which is embedded in the plate, opened at a side face of the plate, and extends toward the inside of the plate; and a sensor 236 which is inserted into the pipe through the opening, and measures a temperature in an inner position of the tube plate.

Description

  The technology disclosed herein relates to a laminated structure, in particular, a tube plate that is interposed between adjacent passages and configured to conduct heat between fluids flowing through the passages, and is laminated on the tube plate. And a corrugated fin configured to be brazed and disposed in the passage.

  In Patent Document 1, in a heat exchanger that is one of the laminated structures configured by laminating a tube plate and a corrugated fin, in order to inspect the bonding state between the tube plate and the corrugated fin, A technique for attaching a temperature sensor to the surface of a tube plate constituting the outer surface is described. In this technology, in a plate fin type heat exchanger that performs heat exchange between two passages sandwiching a tube plate, a thermocouple is attached to each of the outer surfaces of the tube plate located outside each passage, The quality of the brazed state between the tube plate and the corrugated fin is judged from the temperature difference between the two tube plates.

  Further, in Patent Document 2, in a plate fin type heat exchanger, an inflow port to the core is formed, and a thermocouple is arranged on the outer surface of the core so as to penetrate the header tank. It describes the measurement of the temperature near the inlet of the core, which can be high.

  Further, in Patent Document 3, in a plate fin type heat exchanger using a heater adjacent to a passage provided in a core as a heating source, a thermocouple is built in the heater portion to measure the heating temperature of the heater. Have been described. Specifically, this plate fin type heat exchanger uses a thin plate heater, and stacks the tube plate, the corrugated fin, and the heater in a predetermined order, and thereby the fluid passage defined by the tube plate and A heater is interposed between the fluid passage (see FIG. 3 of the cited document 3).

  Furthermore, Patent Document 4 describes a catalytic reactor using a structure of a plate fin type heat exchanger. In this catalytic reactor, a corrugated fin is disposed in a passage partitioned by a tube plate, and the tube plate and the corrugated fin are fixed by brazing, thereby forming a core (that is, a laminated structure) and corrugated fins. The catalyst carrier is inserted into each of the plurality of channels partitioned by The catalytic reactor is configured to perform a catalytic reaction when a fluid flows through each channel in the passage.

JP 2002-156194 A JP-A-7-167580 JP 2000-130966 A JP 2011-62618 A

  By the way, in the catalytic reactor as described in Patent Document 4, since the catalytic reaction is performed inside the core, the temperature inside the core (that is, the laminated structure) is used in order to grasp the reaction state. There is a need to measure the state of the tube plate, which is also the temperature between the fluids through the tube plate, for example.

  However, although the techniques described in Patent Documents 1 and 2 can measure the temperature of the outer surface of the laminated structure, they cannot measure the internal temperature. Moreover, the technique described in Patent Document 3 is a technique for measuring the temperature of the heater embedded in the laminated structure, and does not intend to measure the temperature between fluids. In addition, this technique is configured to measure the temperature of the heater sandwiched between the tube plates, and is different from the configuration of measuring the temperature of the tube plate that partitions the passages and transfers heat between fluids.

  The technology disclosed herein has been made in view of the above points, and an object thereof is to enable temperature measurement inside the laminated structure.

  The technology disclosed herein relates to a laminated structure, and the laminated structure is interposed between adjacent passages, and is configured to perform heat transfer between fluids flowing through the passages. A corrugated fin brazed in a state of being laminated on a tube plate and configured to be disposed in the passage.

  The tube plate is embedded in the plate and opened in a side surface of the plate and is configured to extend inward of the plate; and the tube plate is inserted into the pipe through the opening. And a sensor for measuring the temperature at the inner position of the tube plate.

  According to this configuration, in the laminated structure configured by laminating and brazing the tube plate and the corrugated fin, the pipe is embedded in the tube plate. The pipe opens to the side surface of the tube plate and extends from the pipe toward the inside of the plate. Therefore, the pipe opens to the side surface of the laminated structure (that is, the surface constituting the outer surface in the direction perpendicular to the lamination direction in the laminated structure).

  A sensor for measuring the temperature is inserted in the pipe, and this sensor measures the temperature at the inner position of the tube plate. Such a sensor may be, for example, a thermocouple. As described above, since the pipe is opened on the side surface of the tube plate and opened on the side surface of the laminated structure, the sensor is inserted into the pipe through the opening on the side surface of the laminated structure. And the sensor can be positioned at the inner position of the tube plate, in other words, at the inner position of the laminated structure. As a result, it is possible to grasp the heat exchange state between the fluids flowing in the adjacent passages with the tube plate interposed therebetween based on the temperature of the tube plate in the laminated structure. Since the sensor is embedded in the tube plate and does not appear in the passage defined by the tube plate, even if the sensor is disposed inside the laminated structure, the flow of the fluid is not hindered. .

  Here, embedding a pipe in the tube plate avoids that the hole for arranging the sensor is blocked by the brazing material when the tube plate and the corrugated fin are brazed. There is an advantage that the sensor can be reliably disposed at the inward position.

  Also, if a sensor is inserted into the pipe and the sensor is not fixed to the pipe, the sensor can be easily replaced when a sensor failure or the like occurs, for example. Furthermore, if a plurality of pipes are embedded in various places in the tube plate, it is possible to measure the temperature in various places inside the laminated structure by changing the position of the sensor.

  Here, a catalyst carrier may be provided in at least one of the adjacent passages, and a catalyst reaction may be performed on the fluid flowing in the passage.

  That is, this configuration enables temperature measurement at the inner position of the tube plate in a catalytic reactor having a plate fin type heat exchanger structure in which a tube plate and a corrugated fin are laminated. Since a catalytic reaction is performed inside the catalytic reactor, the internal temperature can be higher than the temperature near the side surface of the laminated structure in which the fluid inlet and outlet are formed. Accordingly, in the catalytic reactor, although there is a demand for measuring the internal temperature, as described above, the internal temperature of the catalytic reactor can be measured by embedding a pipe into which the sensor is inserted in the tube plate. Therefore, it is possible to accurately grasp the reaction state. This technique is therefore particularly suitable for catalytic reactors.

  The tube plate includes the pipe, first and second plate members that are disposed so as to sandwich the pipe in the plate thickness direction, and that form a surface that defines the passage, and the first and second plate members. In the meantime, at least the third and fourth plate members arranged on both sides of the pipe between them may be joined to each other by brazing.

  By doing so, the pipe can be easily embedded in the tube plate. In other words, if a hole for disposing the sensor is formed at the inner position of the tube plate, for example, a hole extending inward from the side surface of the tube plate can be considered. However, since the tube plate performs heat transfer between fluids sandwiching the tube plate, the thickness of the tube plate must be relatively thin. Therefore, making a hole inward from the side surface of a thin tube plate is difficult to process and increases the processing cost.

  The above-described configuration in which a plurality of plate members are combined makes it possible to provide a hole for arranging a sensor by embedding a pipe in the tube plate without making a hole in the plate member. In addition, the first to fourth plate members can be made to have the same plate thickness, which is advantageous for reducing the manufacturing cost. In addition, when setting the 1st-4th board | plate material to the same board thickness, while the 3rd and 4th board | plate material arrange | positioned on both sides of a pipe needs to set more than the outer diameter of a pipe, Since there is a need to reduce the thickness of the entire tube plate formed by laminating the first to fourth plate materials in consideration of heat transfer, the plate thickness of each plate material is appropriate considering these factors. It is preferable to set the plate thickness.

  Moreover, since the 1st-4th board | plate material and a pipe comprise the tube plate laminated | stacked in the same direction as the lamination direction of a tube plate and a corrugated fin, it is 1st simultaneously with brazing of a tube plate and a corrugated fin. It is possible to braze a 4th board | plate material and a pipe. In this way, it is advantageous for cost reduction by simplifying the manufacturing process.

  As described above, according to the above-described laminated structure, a pipe that opens on the side surface of the tube plate is embedded in the tube plate, and a sensor is inserted into the pipe, thereby measuring the temperature inside the laminated structure. It becomes possible.

It is a partially broken front view which shows the structure of a catalytic reactor roughly. It is II-II sectional drawing of FIG. (A) The disassembled perspective view of a tube plate, (b) The assembly perspective view of a tube plate. It is sectional drawing of a tube plate. (A) (b) It is a figure corresponding to Drawing 4 showing the modification of a tube plate. (A) (b) It is a figure corresponding to Drawing 4 showing another modification of a tube plate. (A) (b) (c) It is a figure corresponding to FIG. 4 which shows another modification of a tube plate.

  Hereinafter, an embodiment of a catalytic reactor will be described based on the drawings. In addition, the following description of preferable embodiment is an illustration. FIG. 1 schematically shows a configuration of a catalytic reactor 1 according to an embodiment, and FIG. 2 shows a part of a II-II cross section of FIG. For convenience of explanation, the vertical direction in FIG. 1 is referred to as the X direction, the horizontal direction is referred to as the Z direction, and the direction orthogonal to the paper surface is referred to as the Y direction. There is a case. However, “upper” and “lower” in the following description may not correspond to the upper and lower in an actual catalytic reactor.

  The catalytic reactor 1 basically has a core 2 having the same structure as a plate fin type heat exchanger. As shown in part in FIG. 2, the core 2 includes a plurality of first passages 21 through which the first fluid flows and a plurality of second passages 22 through which the second fluid flows, while interposing the tube plate 23. It is configured by alternately laminating in the direction (in FIG. 2, only one first passage 21 and one second passage 22 are shown). Side portions in the Z direction in the first passage 21 and the second passage 22 are partitioned by side bars 24. Details of the configuration of the tube plate 23 will be described later.

  The first fluid flows into the first passage 21 from the upper end surface of the core 2 and flows downward in the core 2 as indicated by solid arrows in FIG. It is configured to flow out in the direction. As shown by a white arrow in FIG. 1, the second fluid flows from the lower end surface of the core 2 and flows upward in the core 2, and then flows out from the side surface at the upper end portion of the core 2 in the Z direction. It is configured. Thus, the core 2 is configured in a counterflow type in which the first fluid and the second fluid flow in the X direction. However, the configuration of the core 2 is not limited to this, and may be a parallel flow type in which the flow directions of the first fluid and the second fluid are set in parallel with each other, or the flow directions of the first fluid and the second fluid may be different. It is good also as a crossflow type which mutually orthogonally crosses.

  As shown in FIG. 2, corrugated fins 211 are disposed in each first passage 21 in the core 2. The corrugated fins 211 divide the first passages 21 into a plurality of channels that are aligned in the Z direction and extend in the X direction. In addition, corrugated fins 221 are also arranged in each second passage 22, and each second passage 22 is also lined up in the Z direction and partitioned into a plurality of channels extending in the X direction by the corrugated fins 221. Has been. The corrugated fins 211 and 221 arranged in the first passage 21 and the second passage 22 are upper walls 2111, 2112, and lower walls 2112, 2212 that are in contact with the tube plate 23, upper walls 2111, 2111, and lower walls 2112, Side walls 2113 and 2213 extending straight in the Y direction are configured to connect 2212 to each other. In the first passage 21 and the second passage 22, each channel defined by the upper walls 2111, 2112, or the lower walls 2112, 2212, the two side walls 2113, 2213, and the tube plate 23 has a substantially rectangular cross-sectional shape. Have. The cross-sectional shape of the channel is not limited to this shape.

  In each first passage 21, a distributor fin 212 cut out in a triangular shape is disposed on the outflow side corresponding to the lower end of the core 2, as conceptually shown in FIG. The distributor fin 212 changes the flow direction in the first passage 21 from downward in the X direction to horizontal in the Z direction (leftward in FIG. 1). Also, in each second passage 22, a triangular distributor fin 222 is disposed on the outflow side corresponding to the upper end portion of the core 2, so that the flow direction in the second passage 22 is X The direction is changed from the upward direction to the horizontal direction in the Z direction (rightward direction in FIG. 1). In this way, the upper end surface of the core 2 becomes the first fluid inflow surface 31, and the side surface in the lower portion of the core 2 becomes the first fluid outflow surface 32. On the other hand, the lower end surface of the core 2 becomes the second fluid inflow surface 33, and the side surface at the upper part of the core 2 becomes the second fluid outflow surface 34.

  An inflow header tank 41 is attached to the inflow surface 31 of the first fluid with respect to the core 2 in order to distribute the first fluid to each channel of each first passage 21 and to flow in. An inflow nozzle 411 through which the first fluid flows is attached to the inflow header tank 41. On the other hand, on the outflow surface 32 of the first fluid in the core 2, an outflow header tank 42 is attached for collecting and outflowing the first fluid that has passed through each channel of each first passage 21. An outflow nozzle 421 through which the first fluid flows out is attached to the outflow header tank 42. An inflow header tank 43 is attached to the inflow surface 33 of the second fluid, and an outflow header tank 44 is attached to the outflow surface 34 of the second fluid. The inflow header tank 43 and the outflow header tank 44 for the second fluid have the same configuration as the inflow header tank 41 and the outflow header tank 42 for the first fluid, and the inflow nozzle 431 and the outflow nozzle 441 are attached to the second fluid inflow header tank 43 and the outflow header tank 44, respectively.

  The first corrugated fin 211 in the first passage 21 is configured such that the upper end and the lower end thereof are orthogonal to the fluid flow direction (that is, the X direction). A second corrugated fin 213 is arranged between the first corrugated fin 211 and the distributor fin 212.

  Similarly to the distributor fin 212, the second corrugated fin 213 is a fin cut out in a triangular shape, and, like the first corrugated fin 211, the first passage 21 is formed into a plurality of channels arranged in the Z direction. It is configured to partition. By disposing the second corrugated fins 213 against the first corrugated fins 211, the channels in the first passage 21 are continuous in the X direction.

  The first corrugated fin 221 in the second passage 22 is also configured such that the upper end and the lower end thereof are orthogonal to the fluid flow direction (that is, the X direction), and detailed illustration is omitted. However, a second corrugated fin 223 cut out in a triangular shape is disposed between the first corrugated fin 221 and the distributor fin 222.

  Thus, in the catalyst reactor 1, the catalyst carrier 215 is inserted into each channel in the first passage 21. As conceptually shown in FIGS. 1 and 2, the catalyst carrier 215 has a rectangular bar shape extending in the X direction and having a cross section corresponding to the cross section shape of the channel, from one end of the first corrugated fin 211. It extends over the entire area up to the other end (refer to “Catalyst insertion region of the first passage” in FIG. 1. In FIG. 1, only one catalyst carrier 215 is shown for easy understanding. Yes.) Similarly, in the second passage 22, a rectangular bar-shaped catalyst carrier 225 extending in the X direction is inserted into each channel (see FIG. 2). Also in the second passage 22, the catalyst carrier 225 extends over the entire region from one end to the other end of the first corrugated fin 221 (see “catalyst insertion region of the second passage” in FIG. 1). In the region where the catalyst insertion region of the first passage 21 and the catalyst insertion region of the second passage 22 overlap, interaction of two catalytic reactions can be expected. The shape of the catalyst carriers 215 and 225 may be a cross-sectional shape corresponding to the cross-sectional shape of the channel, and illustration is omitted. However, if the cross-sectional shape of the channel is a trapezoidal shape, for example, If the cross-sectional shape of the bodies 215 and 225 is also trapezoidal and the cross-sectional shape of the channel is, for example, a square shape, the cross-sectional shape of the catalyst carrier 215 and 225 may be a square shape.

  As described above, the core 2 is configured as a stacked structure formed by stacking the tube plate 23 and the corrugated fins 211 and 221 and brazing them.

  Here, the manufacturing method of the catalytic reactor 1 will be briefly described. The core 2 is formed by laminating the tube plate 23 and the corrugated fins 211, 212, 213, 221, 222, and 223 in a predetermined order and brazing. Can be created. Each of the header tanks 41, 42, 43, 44 is attached to the core 2 by welding. The catalyst carrier 215 in the first passage 21 is a channel that opens to the inflow surface 31 in a state where the inflow surface 31 of the first fluid that is the upper end surface of the core 2 is exposed before the header tank 41 is attached. Inserted one by one. Similarly, the catalyst carrier 225 in the second passage 22 opens to the inflow surface 33 in a state where the inflow surface 33 of the second fluid that is the lower end surface of the core 2 is exposed before the header tank 43 is attached. Inserted into each channel.

  Thus, in the catalyst reactor 1 having this configuration, the catalyst carriers 215 and 225 are not fixed in the channel, so the header tanks 41 and 43 attached to the core 2 are removed, and the inflow surface 31 and the inflow surface of the core 2 are removed. By exposing 33, replacement can be performed easily.

  Next, the configuration of the tube plate 23 will be described in detail with reference to FIGS. 3A is an exploded perspective view of the tube plate 23, FIG. 3B is an assembled perspective view of the tube plate 23 in a state in which four plate members are combined, and FIG. A part of the cross-sectional view is shown. As shown in FIGS. 3 and 4, a pipe 235 is embedded in at least one of the many tube plates 23 constituting the core 2. The pipe 235 is a pipe 235 for disposing a thermocouple (that is, a thermocouple wire) 236 (see FIG. 4) inside the core 2 as an example of a sensor for measuring temperature. The tube plate 23 is configured by joining the first to fourth plate members 231, 232, 233, and 234 and a pipe 235 together.

  Of the first to fourth plate members 231 to 234, the first plate member 231 and the second plate member 232 are plate members that constitute a surface that defines the first passage 21 or the second passage 22 of the core 2. The first plate member 231 and the second plate member 232 are disposed so as to face each other with the pipe 235 interposed therebetween in the stacking direction of the core 2 (that is, the Y direction in this example). On the other hand, the third plate member 233 and the fourth plate member 234 are plate members disposed between the first plate member 231 and the second plate member 232, and on both sides sandwiching the pipe 235, Each is arranged.

  As shown in FIGS. 2 and 3, the pipe 235 has a base end opening located on a side edge of each of the plate members 231 to 234 so that the pipe 235 opens on a side surface of the tube plate 23, while a tip end of the pipe 235 In the example shown in the figure, it extends in the Z direction. Thus, the pipe 235 opens on the side surface of the core 2, and the thermocouple 236 can be disposed inside the core 2 by inserting the thermocouple 236 into the pipe 235 from the opening.

  The first to fourth plate members 231 to 234 all have the same plate thickness in the illustrated example, and are configured by being cut out to a predetermined size from the same plate member. This is advantageous for reducing the manufacturing cost. In this example, the first to fourth plate members 231 to 234 have the same plate thickness as the outer diameter of the pipe 235. However, if the plate thickness is larger than the outer diameter of the pipe 235, the first plate member is used. The tube plate 23 can be configured by sandwiching the pipe 235 and the third and fourth plate members 233 and 234 between the second plate member 231 and the second plate member 232. However, if the plate thickness of the first to fourth plate members 231 to 234 becomes too thick, the plate thickness of the entire tube plate 23 becomes thick. As a result, heat transfer between the first passage 21 and the second passage 22 in the core 2 is performed. There is a possibility that the performance is lowered. Therefore, it is preferable that the plate thicknesses of the first to fourth plate members 231 to 234 are approximately the same as the outer diameter of the pipe 235.

  The first to fourth plate members 231 to 234 and the pipe 235 constitute one tube plate 23 by being joined together by brazing. This brazing can be performed simultaneously when the core 2 is manufactured by brazing the tube plate 23 and the corrugated fins 211 and 221 described above. That is, the first to fourth plate members 231 to 234 and the pipe 235 are also laminated in the same direction as the lamination direction of the tube plate 23 and the corrugated fins 211 and 212, so It is possible to manufacture the core 2 by performing brazing after laminating 234 and the pipe 235 and the corrugated fins 211 and 212 in a predetermined order. At this time, the pipe 235 makes it possible to ensure the arrangement path of the thermocouple 236 without being blocked by the brazing material.

  Here, as the arrangement form of the pipe 235 with respect to the tube plate 23, various forms can be adopted. That is, although illustration is omitted, the pipe 235 may be disposed so as to penetrate the tube plate 23 from one end to the other end of the tube plate 23. Further, the pipe 235 may be disposed so as to extend from one end of the tube plate 23 to an inward middle position.

  In addition to the pipe 235 extending along the tube plate 23 in the X direction or the Z direction, the pipe 235 may be extended in a direction oblique to the X direction or the Z direction.

  Furthermore, instead of embedding only one pipe 235 in one tube plate 23, a plurality of pipes 235 may be arranged and embedded in parallel. When embedding a plurality of pipes 235 as described above, the various arrangement forms described above may be appropriately combined. For example, some pipes 235 are arranged in a predetermined position in the tube plate 23 so as to penetrate from one end of the tube plate 23 to the other end and are arranged in parallel in a predetermined direction, while some other pipes 235 are arranged. 235 is arranged at a predetermined position in the tube plate 23 so as to extend from one end of the tube plate 23 to an inward middle position and in parallel in a predetermined direction. You may arrange | position in parallel with a predetermined direction so that it may extend from the other end of the tube plate 23 to the inner halfway position in the predetermined position in the plate 23. FIG. In the configuration in which two or more pipes 235 are embedded in the tube plate 23, three or more plate members are disposed between the first and second plate members 231 and 232.

  With such a configuration, the catalytic reactor 1 can measure the temperature inside the core 2 by the thermocouple 236. At this time, since the pipe 235 is embedded in the tube plate 23, no configuration for temperature measurement appears in each of the passages 21 and 22 through which the fluid flows in the core 2. This has the advantage that the temperature inside the core 2 can be measured without affecting the performance of the catalytic reactor 1. Since the catalytic reaction is performed inside the core 2 of the catalytic reactor 1, measuring the temperature state inside the core 2 is effective for grasping the reaction state. Enabling the temperature measurement inside the core 2 by the above-described configuration enables appropriate operation control of the catalytic reactor 1. Further, by monitoring the temperature state inside the core 2, it is also possible to grasp the deterioration state of the catalyst carrier 215, 225. As described above, the catalyst carrier 215, 225 configured to be replaceable can be used. It becomes possible to exchange at an appropriate time.

(Modification)
5-7 has shown the modification. Among these, FIG. 5 shows a configuration in which a hole 237 is opened inward from the side surface of one tube plate 23, and a pipe 235 is inserted into the hole 237. A space between the hole 237 and the pipe 235 is filled with a brazing material. The hole 237 formed in the tube plate 23 may have a circular cross section as shown in FIG. 5 (a), or may have a rectangular cross section as shown in FIG. 5 (b). In this configuration, as described above, the tube plate 23 is set to have a relatively thin plate thickness in consideration of heat transfer, and therefore it is difficult to form the hole 237 in the tube plate 23 having a thin plate thickness. (Especially in the case of forming a hole extending inward from the side surface of the tube plate 23), and the processing cost is higher than the configuration in which the first to fourth plate members 231 to 234 described above are combined. There is a disadvantage of doing.

  In FIG. 6, a concave groove 238 that is recessed from the surface of the tube plate 23 is formed, and a pipe 235 is disposed there. The inside of the concave groove 238 is filled with a brazing material except for the portion of the pipe 235. FIG. 6A is an example in which the bottom of the concave groove 238 is formed in an arc shape, and FIG. 6B is an example in which the bottom of the concave groove 238 is formed in a straight line shape. Processing the groove 238 on the surface of the tube plate 23 is disadvantageous in that the processing cost is still increased although the processing itself is easier compared to the case of processing the hole 237 as described above. There is. In addition, the configuration in which such a concave groove 238 is formed is such that when the tube plate 23 and the corrugated fins 211 and 221 are brazed, the concave groove 238 is formed on the surface of the tube plate 23 on which the corrugated fins 211 and 221 abut. Therefore, there may be a problem in the brazability between the tube plate 23 and the corrugated fins 211 and 221.

  7, similarly to FIG. 6, a concave groove 238 is formed on the surface of the tube plate 23, a pipe 235 is disposed therein, and an upper opening of the concave groove 238 is closed by another member 239. Of these, FIG. 7 (a) shows a recess recessed from the surface of the tube plate 23 and a groove 238 having the same width as the outer diameter of the pipe 235, the pipe 235 being disposed therein, Another member (lid member 239) corresponding to the groove width of the groove 238 is disposed in the groove 238. Thereby, the surface of the tube plate 23 is made flush with the upper opening of the groove 238 being closed. Further, FIG. 7B, like FIG. 7A, forms a concave groove 238 that is recessed from the surface of the tube plate 23. This concave groove 238 is a first concave having a relatively wide groove width. A groove 2381 and a second concave groove 2382 having a relatively narrow groove width are continuously formed, and a step is provided in the middle of the tube plate 23 in the thickness direction. The second concave groove 2382 has a groove width and depth that are approximately the same as the outer diameter of the pipe 235, and the pipe 235 is disposed in the second concave groove 2382. On the other hand, another member (lid member 239) corresponding to the groove width and depth of the first groove 2381 is disposed in the first groove 2381, thereby closing the upper opening of the groove 238. However, the surface of the tube plate 23 is made flush. FIG. 7C shows a groove 238 that is recessed from the surface of the main plate 2311 as in FIG. 7A, and a pipe 235 is disposed in the groove 238, while the main plate 2311. By laminating the sub-plate 2312, the upper opening of the concave groove 238 is closed and the surface of the tube plate 23 (that is, the surface defining the first or second passages 21 and 22 in the core 2) is configured. ing. In addition, each structure shown in FIG. 7 must prepare several board | plate materials etc. from which board thickness differs, and there exists a problem that manufacturing cost becomes high compared with the structure as shown in FIG.

  Depending on the application of the catalyst reactor 1, there may be a configuration in which the catalyst carrier 225 is not inserted into the second passage 22.

  In addition, the technology disclosed herein is not limited to the catalytic reactor, and in a laminated structure such as a plate fin heat exchanger, it is possible to accurately measure the internal temperature state. The present invention can be widely applied to the laminated structure.

  As described above, the laminated structure disclosed herein is useful as, for example, a catalytic reactor or a plate fin type heat exchanger because it enables internal temperature measurement.

1 catalyst reactor 21 first passage 211 first corrugated fin 215 catalyst carrier 22 second passage 221 first corrugated fin 225 catalyst carrier 23 tube plate 231 first plate member 232 second plate member 233 third plate member 234 Fourth plate member 235 Pipe 236 Thermocouple (sensor)

Claims (3)

A tube plate interposed between adjacent passages and configured to conduct heat between fluids flowing in each passage;
A corrugated fin brazed in a stacked state on the tube plate and configured to be disposed in the passage,
The tube plate is embedded in the plate and opened in a side surface of the plate and configured to extend inward of the plate; and the tube plate is inserted into the pipe through the opening; and A laminated structure having a sensor for measuring a temperature at an inward position of the tube plate. The laminated structure according to claim 1,
A laminated structure in which a catalyst carrier is disposed in at least one of the adjacent passages, and a catalytic reaction is performed on a fluid flowing in the passage. In the laminated structure according to claim 1 or 2,
The tube plate includes the pipe, first and second plate members that are disposed so as to sandwich the pipe in the plate thickness direction, and that form a surface that defines the passage, and the first and second plate members. A laminated structure configured by joining at least the third and fourth plate members, which are disposed on both sides of the pipe, between each other by brazing.

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