WO2019221169A1 - Metal sheet and laminate provided therewith - Google Patents

Abstract

Provided are: a metal sheet which has a novel structure; and a laminate which is provided with the metal sheet and is applicable to various usages. This metal sheet 10 comprises a waveform structure 11 in which ridges 12 and valleys 13 are periodically repeated. The waveform structure 11 comprises openings 14, and protrusions 15 protruding from the openings 14. The protrusions 15 protrude toward the interior of the waveform structure 11. Relative to a vertical reference line, left inclined regions 24 inclining diagonally towards the left and right inclined regions 25 inclining diagonally towards the right repeat alternately such that the ridges 12 and the valleys 13 extend in the vertical direction. The metal sheet 10 overlaps, in the thickness direction, with a sheet body such as another metal sheet 10 or a metal lath, thereby forming a laminate.

Description

Metal sheet and laminate having the same

The present invention relates to a metal sheet and a laminate including the metal sheet.

Patent Document 1 is a metal foil provided with at least one slit disposed in an inner region of the metal foil, wherein the at least one slit at least partially defines a microstructure of the metal foil, and the microstructure Projecting from the surface structure of the metal foil, the microstructure forms a corrugated region, the corrugated region has at least one wave peak and valley, and the wave peak and valley At least one of the parts is disclosed so as not to be arranged linearly with respect to the longitudinal direction of the metal foil. More specifically, the microstructure is formed so as to protrude in a substantially U shape from the surface of the metal foil toward the inside of the peak portion and the valley portion by the slit, and both ends of the U shape are formed. It is continuous with the surface structure.

This Patent Document 1 discloses that this metal foil is used as a carrier for supporting a catalyst, for example, but the flow of processing fluid in the direction in which the corrugation extends due to the corrugated peaks and valleys and the microstructure. Although the flow of the processing fluid is intended in a transverse direction, the passage of the processing fluid in the thickness direction is not intended.

Moreover, although using this metal foil as a support | carrier for catalyst support is disclosed, this metal foil does not generate | occur | produce heat | fever itself.
In addition, the wave shape has problems such as insufficient brazing strength and local accumulation of catalyst.

In Patent Document 2, through-holes having yoke-shaped protrusions or burrs at the periphery are formed in corrugated or uneven peaks and valleys, and the cross-sectional shape is periodically changed in the wavefront direction to individual corrugations or unevenness. A metal porous body having a spirally wound metal plate or metal foil, and a porous electrical insulating film between adjacent surfaces of the spirally wound metal plate or metal foil. Disclosed is a metal filter for a diesel engine in which heating electrodes are attached to both longitudinal ends of a plate or metal foil. This metal filter has a corrugated cross-sectional area of the exhaust gas flow path that is enlarged along the flow direction of the exhaust gas by attaching undulations whose cross-sectional shape is periodically changed in the wave front direction to individual corrugations or irregularities It is possible to reduce the size of the exhaust gas and to give a certain kind of pressure swing adsorption action to the exhaust gas. This can promote the sedimentation of the particulates, and further increase the efficiency of the particulates supplementation by protrusions or burrs. It can be improved.

However, since this yoke-like protrusion or burr protrudes toward the outside of the peak part and the valley part, when it is wound in a tight spiral shape, it is a yoke-like protrusion between the metal plates on the inner peripheral side and the outer peripheral side. Or, when burr interferes, or when it is laminated with another layer such as an insulating layer, the other layer is damaged, or when it is desired to increase the contact area between the peak and valley and the other layer, The burr may not increase the contact area due to interference. Further, since the protrusions or burrs exist outward, it is difficult to braze with other members, and it is difficult to implement as a laminate with other members.

Patent Document 3 discloses a catalyst body in which a clad steel plate made of an iron-chromium-aluminum thin plate and an aluminum foil is used as a heating element, and after the annealing process, the catalyst is supported to form a catalyst layer. In addition, it is disclosed that the heating element is obtained by lathing a clad steel sheet, then applying a corrugation process, and then performing an annealing process to form an alumina film. However, this Patent Document 3 only shows that the heating element is subjected to lath processing or the like of the clad steel plate, and no disclosure is made about characteristics such as an electric resistance value.

Patent Documents 4 and 5 disclose that a metal body or the like is used as a carrier and a catalyst body on which a catalyst is supported is used for an air purifier including a deodorizing device, an exhaust gas purifying device, and a V O C removing device. However, the metal lath is merely a catalyst carrier and does not generate heat by itself.

Patent Document 6 is proposed by the applicant of the present application to solve the problems of Patent Documents 1 to 5, but the applicant of the present application further improved the metal sheet and the laminate including the same. It is an attempt to improve the flow of the processing fluid that is caused to flow.
Each of the documents from Patent Document 6 to Patent Document 13 is a prior art document shown in the examination of the application of Japanese Patent Application No. 2018-94809 based on the claim of priority etc. under the Paris Convention of the present application.
However, each document from Patent Document 6 to Patent Document 13 only shows an opening provided on both right and left slope portions, and discloses a combination of a herringbone structure and a left-right asymmetric structure. It is not something that suggests or suggests.
More specifically, the herringbone structure in which the peak portion and the valley portion extend in the vertical direction by alternately repeating a left inclined region inclined obliquely to the left with respect to the vertical reference line and a right inclined region inclined obliquely to the right. Further, in at least one bending unit of the herringbone structure, there is an uneven distribution in which one slope portion of the peak portion is not provided with an opening portion and a protrusion portion, and the other slope portion is provided with an opening portion and a protrusion portion. It does not have a structure. Therefore, it does not realize the flow of the processing fluid that promotes the movement and stirring of the three-dimensional processing fluid, which is caused by providing both the herringbone structure and the uneven distribution structure as shown in FIG. 6 of the present application.

Japanese Patent No. 5563946 Japanese Patent No. 4236724 JP 2000-334299 A Japanese Patent Laid-Open No. 2002-191986 JP 2007-236638 A JP 2017-148705 A US Patent Application Publication No. 2006/0130327 JP 2006-105577 A US Pat. No. 5,820,832 International Publication No. 2015/121910 US Patent Application Publication No. 2004/0121907 US Patent Application Publication No. 2015/0276330 JP-A-8-320194

In view of the above circumstances, an object of the present invention is to provide a metal sheet having a new structure. Moreover, this invention makes it a subject to provide the laminated body which can be applied to various uses while being provided with the metal sheet provided with the new structure.
Further, according to the present invention, when a processing fluid is passed through a metal sheet and a laminate including the metal sheet, contact between the metal sheet and the stack including the metal sheet and the entire processing fluid can be promoted. Is an issue.

The present invention provides a corrugated structure portion that is arranged in a processing fluid that flows from upstream to downstream as a whole, and in which a plurality of crests extending in the flow direction of the processing fluid and troughs extending in the flow direction are alternately arranged in the lateral direction. Provided is a metal sheet having the following new structure.

The metal sheet of the present invention is provided with an opening that allows the corrugated structure portion to move in the lateral direction of the processing fluid, and a protruding portion that protrudes from the opening. A left inclined region inclined obliquely to the left with respect to a line and a right inclined region inclined obliquely to the right are alternately and repeatedly provided with the left-right inclined structure extending in the longitudinal direction.

The corrugated structure portion can be implemented as having a peak portion of the peak portion, a valley bottom portion of the valley portion, and a slope portion connecting the peak portion and the valley bottom portion.

The opening can allow the processing fluid to move in the lateral direction, thereby allowing the processing fluid to move to the adjacent peak and valley. Furthermore, since the peak portion and the valley portion are provided with the left-right inclined structure, the movement of the processing fluid is promoted, and an increase in pressure loss due to the left-right inclined structure can be suppressed.

The projecting portion may be implemented as a belt-like shape in which both ends of the belt are connected to the corrugated structure at both ends of the opening. As a result, a shearing force can be applied to the processing fluid, and various actions such as guiding the processing fluid to the opening can be exhibited.

It is also preferable that at least one of the opening and the protrusion is asymmetrical with respect to the center of the peak portion. For example, on the left and right, the opening area of the opening is different, the shape of the opening and the protrusion is different, the position where the opening and the protrusion are provided, Can be implemented. Since the left slope area and the right slope area are alternately repeated in the left-right slope structure, the left slope area and the right slope area are combined with a structure in which the peak portion or the valley portion is left-right asymmetric. The flow of the processing fluid changes and the three-dimensional movement is promoted, so that stirring of the processing fluid is promoted, and the processing is made uniform by uniform contact of the entire processing fluid with the metal sheet. Can do.

The mountain part and the valley part can be implemented as having various specific mobiles.
If an example is given, it can implement as the said peak part, the said valley bottom part, and the said slope part each including a flat surface. Moreover, the said protrusion part can be implemented as what was provided with the form which does not protrude upwards from the said peak part, or downward from the said valley bottom part.

Further, the present invention can be carried out assuming that the opening is provided between a mountain bent portion between the mountain top portion and the slope portion and a valley bent portion between the valley bottom portion and the slope portion. . Moreover, the said protrusion part can be implemented as that the both ends are connected with the said peak part and the said valley bottom part.

Further, it can be carried out as if the opening was provided between the valley bent part between the valley bottom part and the slope part, and the slope part on the opposite side across the peak part, The projecting portion can be implemented as having both ends connected to the valley bottom portion and the slope portion.

The metal sheet can be implemented as a laminated body in which a plurality of sheets are stacked in the thickness direction.
Moreover, it can implement also as a laminated body arrange | positioned by interposing a sheet body between the said metal sheet and the said metal sheet.

Further, the present invention can also be implemented as a coiled laminated body in which the laminated body is wound in a spiral shape and the axial direction of the spiral is the flow direction of the processing fluid.

The present invention has been able to provide a laminate that can be applied to various uses together with a metal sheet having a new structure.
In addition, the present invention provides a metal sheet that can promote contact with the entire processing fluid when a processing fluid is passed through the metal sheet and a laminate including the metal sheet, and a new structure of the laminate including the metal sheet. It was possible to provide.

(A) The end view of the metal sheet which concerns on embodiment of this invention, (B) The principal part perspective view, (C) The end view of the laminated body of the metal sheet. (A) The perspective view of the metal sheet, (B) The perspective view which varied the angle of the metal sheet. (C) End view of another laminate of the same metal sheet, (B) End view of still another laminate of the same metal sheet. (A) Explanatory drawing of the pitch and height of the metal sheet, (B) Explanatory drawing of the angle of the metal sheet. The end view of the metal sheet which concerns on other embodiment of this invention, (B) The principal part perspective view, (C) The perspective view of the metal sheet, (D) The perspective view which varied the angle of the metal sheet. (A) Explanatory drawing of the metal sheet planar view, (B) Explanatory drawing of the front view. (A) The perspective view explaining the turbulent flow which arises with the metal sheet which concerns on embodiment of this invention, (B) The perspective view seen from the other angle. The perspective view of the state which piled up the metal sheets which concern on other embodiment of this invention, (B) The principal part expansion perspective view, (C) The perspective view seen from the other angle, (D) Of the metal sheet The end view of the state which accumulated. The perspective view in the state where metal sheets concerning other embodiments of the present invention were piled up, (B) The principal part expansion perspective view, (C) The perspective view seen from other angles, (D) The metal sheet The end view of the state which piled up. The perspective view in the state where metal sheets concerning other embodiments of the present invention were piled up, (B) The principal part expansion perspective view, (C) The perspective view seen from other angles, (D) The metal sheet The end view of the state which piled up. The perspective view in the state where metal sheets concerning other embodiments of the present invention were piled up, (B) The principal part expansion perspective view, (C) The perspective view seen from other angles, (D) The metal sheet The end view of the state which piled up. (A) The top view of the sheet | seat body which can be used with a metal sheet, (B) The top view which shows the other form of the same sheet body. (A)-(F) is a top view which shows the other form of the sheet body, respectively. (A) The top view of the modification of the metal sheet which concerns on embodiment of this invention, (B) The top view of another modification. (A) The perspective view for showing the structure of the coil structure comprised by the same laminated body, (B) The perspective view for showing the flow direction of the process fluid with respect to the coil structure comprised by the same laminated body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(About metal sheets)
First, the metal sheet 10 will be described with reference to FIGS.

The metal sheet 10 includes a corrugated structure portion 11 in which a peak portion 12 and a valley portion 13 are periodically repeated. The metal sheet 10 is disposed in the processing fluid flowing from upstream to downstream as a whole, and the crest 12 and the trough 13 extend in the direction of the processing fluid flow as a whole. A plurality of the portions 13 are alternately arranged in the horizontal direction to form a waveform structure portion.

Although the overall shape of the metal sheet 10 is arbitrary, it can be implemented in various shapes such as a web shape continuously extending with a constant width, a rectangular shape, or a circular shape.
In the following description, the web-shaped metal sheet 10 is described as a premise, but can be implemented in various forms as described above.

In the case of the web-like metal sheet 10, the ridges 12 and the valleys 13 are alternately arranged in the longitudinal direction (lateral direction), and the direction in which the ridges 12 and the valleys 13 extend is the width direction of the web. However, these descriptions only show a relative positional relationship and do not specify an absolute position. Further, the longitudinal direction of the web and the direction in which the peak portion 12 and the valley portion 13 extend should not be understood in a fixed manner, and the direction in which the peak portion 12 and the valley portion 13 extend is the width direction of the web. It may be carried out or it may be carried out as inclined with respect to the width direction and longitudinal direction of the web.

The material of the metal sheet 10 can be formed of various materials such as metal, sintered material, and synthetic resin, but particularly when iron or an alloy thereof (for example, Fe—Cr—Al alloy having a high specific resistance) is energized. It is preferable to carry out using a conductive metal, for example, when the metal sheet 10 engine or the motor that has the heat generation property when energized is the same or cooler than the outside air temperature. It can also be applied to a cold start to start it in the cold state.
Moreover, when using as a catalyst support | carrier, it is preferable to implement using the raw material with the favorable supportability in relation to a catalyst.
The plate thickness is preferably about 0.02 to 0.1 mm thin plate (foil) such as 0.05 mm, but can be changed according to the application.

(About the waveform structure)
The metal sheet 10 includes corrugated structures 11 in which peaks 12 and valleys 13 are alternately arranged. The corrugated structure portion 11 can be implemented as being formed on the entire metal sheet 10, but may be implemented as being formed only on a part thereof. When forming only in part, you may provide in the center part of the metal sheet 10, a half part of a width direction, a peripheral part, etc., for example.

The peak portion 12 and the valley portion 13 can be implemented as symmetrical in the vertical direction, but the peak portion 12 and the valley portion 13 may have different widths and heights.
In this embodiment, the mountain portion 12 and the valley portion 13 include a flat mountain peak portion 16 and a valley bottom portion 17, and a substantially trapezoidal cross section in which the slope portion 18 connects the mountain peak portion 16 and the valley bottom portion 17. I am doing. The contact area between the stacked layers, such as when the metal sheet 10 is stacked and stacked with the sheet body 40 shown in FIG. The effect of being able to increase can be exhibited. The mountain bent portion 20 between the mountain top portion 16 and the slope portion 18 and the valley bent portion 21 between the valley bottom portion 17 and the slope portion 18 may form a round shape. The portion 18 may have a substantially triangular cross section that is curved or bent instead of a flat surface. A substantially trapezoidal cross section or a substantially triangular cross section should not be understood to be limited to a geometric meaning.

(About openings and protrusions)
The metal sheet 10 includes an opening 14 and a protrusion 15 in the corrugated structure 11.
Although the opening part 14 and the protrusion part 15 can be formed with an appropriate | suitable means, they can be formed by the press work with respect to the metal sheet 10, for example, and you may use another method.
That is, the manufacturing method of the metal sheet 10 can also select the manufacturing method which performs machining, such as a press and stamping, with respect to flat metal foil, a metal film, and a metal sheet similarly to the conventional metal foil. It is also possible to select a manufacturing method in which the ridges 12 and valleys 13, the openings 14 and the protrusions 15 are formed simultaneously with the formation of the sheet by powder sintering. Therefore, it is understood that the metal sheet 10 means a metal thin plate-like body having a predetermined peak portion 12, valley portion 13, opening portion 14 and protruding portion 15 regardless of the manufacturing method. Should.

In this example, the opening 14 is formed in the slope portion 18 between the mountain bent portion 20 and the valley bent portion 21, and the upper end of the belt-like protrusion 15 is connected to the mountain bent portion 20, and the lower end is It is connected to the valley bent portion 21. Specifically, the protrusion 15 includes a vertical portion 22 and a horizontal portion 23. One end of the vertical portion 22 is connected to the mountain bent portion 20 and the other end is connected to one end of the horizontal portion 23. The other end of the lateral portion 23 is connected to the valley bent portion 21. It is preferable that the bent portions connected to each other form rounds, but they may be angular without forming rounds. Alternatively, the opening 14 may be formed only in the middle of the slope portion 18 in the vertical direction, and at least one end of the vertical portion 22 may be connected to the slope portion 18. Further, the opening 14 may be formed until it reaches the peak portion 16 so that one end of the vertical portion 22 is connected to the middle in the left-right direction of the peak portion 16.

The vertical portion 22 has a component in the vertical direction (vertical direction in FIG. 1A) larger than that in the horizontal direction (horizontal direction in FIG. 1A), and is preferably slightly inclined, It may be straight and vertically extending without any ingredients. It is appropriate that the tilt angle when tilting is larger than the tilt angle of the slope portion 18.
As shown in FIG. 4A, the ratio of the pitch p of the ridges 12 (or valleys 13) to the height h of the ridges 12 can be variously changed. For example, 1:10 to 10 : 1.
As shown in FIG. 4B, the inclination angle of the inclined surface portion 18 with respect to the horizontal line can be variously changed. Although the inclination angle of the vertical portion 22 with respect to the horizontal line can be variously changed, it can be implemented, for example, at 70 to 190 degrees. The angle difference between the two is suitably 0 to 120 degrees. In the flow direction, the width of the opening 14 and the protrusion 15 is suitably 3 mm to 25 mm, and the ratio of this width to the width of the slope portion 18 where these are not formed is 1: 1 to 1 pair. Although 20 is appropriate, these numerical values can be changed according to the use of the metal sheet 10, the type of processing fluid, the type of processing, and the like.

The horizontal portion 23 has a larger horizontal component than the vertical component, and has been implemented as having no horizontal component and extending straight horizontally. However, the horizontal portion 23 may be slightly inclined. I do not care. It is appropriate that the tilt angle when tilted is smaller than the tilt angle of the slope portion 18. When the lower end of the opening 14 is the slope portion 18 above the valley bent portion 21, the end of the lateral portion 23 is connected to the slope portion 18, but the lateral portion 23 extends obliquely downward from that end. Thus, the vertical portion 22 is connected. In any case, it is possible to form a laminate described later by keeping the top portion 16 and the valley bottom portion 17 in the vertical direction without projecting outward from the top portion 16 and the bottom portion 17 in the vertical direction. This is advantageous.

The opening 14 and the projecting portion 15 are formed only on one slope portion 18 (the slope portion 18 (R) on the right side of FIG. 1A) of the two slope portions 18 on either side of the peak portion 16. However, it may be formed also on the other slope portion 18 (the right slope portion 18 (L) in FIG. 1A).

(About openings and protrusions according to other embodiments)
FIG. 5 shows an example in which the opening 14 is provided in a larger range than the above example. In this example, the valley bent portion 21 on the right side of the figure and the opposite side across the peak portion 16 (FIG. 5 ( An opening 14 is provided between the slope portion 18 on the left side of A). Therefore, the projecting portion 15 has one end connected to the valley bent portion 21 and the other end connected to the middle of the slope portion 18 on the opposite side.
Specifically, the protruding portion 15 is provided with horizontal portions 23 on both upper and lower sides of the vertical portion 22, the lower vertical portion 22 is connected to the valley bent portion 21, and the upper vertical portion 22 is a slope portion. It is connected to the middle of 18 and is substantially S-shaped as a whole. More specifically, the lower vertical portion 22 extends obliquely downward from the upper portion of the valley bent portion 21, and the upper vertical portion 22 extends obliquely downward from the middle of the slope portion 18. 22 may not be provided, and the mode can be variously changed and implemented.

Although not shown, the opening 14 and the protruding portion 15 may be formed between the middle portions of the slope portions 18 on both the left and right sides. It may be divided into two.
In any of the above examples, the width of the opening 14 and the protrusion 15 (the width in the flow direction in which the peak 12 and the valley 13 extend) is constant, and the opening 14 and the protrusion 15 in plan view. However, it may not be constant, and the opening 14 and the protrusion 15 may be variously modified such as a trapezoid, a rhombus, or an ellipse in plan view.

The protrusion 15 does not protrude above the peak portion 16, and the protrusion 15 does not protrude below the valley bottom portion 17. As a result, due to the synergistic effect of the substantially flat peak portion 16 and the valley bottom portion 17 described above, the contact area with the sheet body 40 when laminated is increased or brazed as shown in FIGS. Defects can be suppressed. Moreover, the effect of not damaging the material of the other party that abuts can also be exhibited.

(Planar shape of corrugated structure)
The metal sheet 10 can be disposed and used in a processing fluid that flows from upstream to downstream as a whole. However, the peak portion 12 and the valley portion 13 have a vertical reference line 27 parallel to the flow direction of the processing fluid as a whole. On the other hand, they meander alternately to the left and right and extend in the vertical direction as a whole (see FIG. 6A). In other words, the peak 12 and the valley 13 have a planar shape (hereinafter also referred to as a herringbone structure) in which the left inclined region 24 and the right inclined region 25 are alternately repeated with the bent region 26 interposed therebetween. It should be noted that at least a part of the bent region 26 or a region extending in parallel with the vertical reference line 27 may be included in the middle of the left inclined region 24 and the right inclined region 25, or may be linearly extended. Instead, for example, it may be implemented as a curve extending like a sine curve. The angle between the left inclined region 24 and the right inclined region 25 is preferably about 135 to 175 degrees, and more preferably about 150 to 170 degrees. In addition, one peak 12 or valley 13 reaches a line segment (a two-dot chain line in FIG. 6 (A)) connecting one bent region 26a and one bent region 26a, or deeper than that ( It is preferable that the bent region 26b of the adjacent peak portion 12 or valley portion 13 enters the right side of the two-dot chain line in FIG.
As the angle increases, the straightness decreases and the pressure loss of the processing fluid increases.On the other hand, as the angle decreases, the straightness increases and the pressure loss of the processing fluid tends to decrease. Shows a tendency to decrease. Therefore, in order to promote the stirring of the processing fluid so that the processing fluid contacts the metal sheet 10 uniformly and satisfactorily and promotes the heating of the processing fluid and the promotion of the catalyst support, it is preferable that the angle is large. The larger the is, the greater the pressure loss and the less favorable results are given when considering the overall efficiency of processing of the processing fluid.

(The uneven distribution structure of the opening part 14 and the protrusion part 15)
In the present invention, since the opening 14 that allows the processing fluid to move in the lateral direction and the protrusion 15 that protrudes from the opening 14 are provided, it is possible to suppress an increase in pressure loss and to stir the processing fluid. Can be urged.
In this embodiment, as shown in FIGS. 1 to 3, the right slope portion 18 (R) of the left and right slope portions 18 sandwiching the peak portion 16 has an opening 14 and a protrusion 15. Are provided, and the left slope portion 18 (L) is not provided with the opening 14 and the protrusion 15. In the example of FIG. 5, among the left and right slope portions 18 sandwiching the peak portion 16, the right slope portion 18 has an opening 14 and a protrusion 15 having a larger area than the left slope portion 18. Is provided.
In addition, the opening part 14 and the protrusion part 15 may be provided in either the right or left slope part 18, and may be provided in both slopes.
As described above, in the peak portion 12 and the valley portion 13, the left inclined region 24 inclined obliquely to the left with respect to the vertical reference line 27 and the right inclined region 25 inclined obliquely to the right alternately It is repeated and extends in the vertical direction as a whole. Then, assuming that one left inclined region 24 and one right inclined region 25 sandwiching one bent region 26 is one herringbone unit H, at least one herringbone unit H has the following uneven distribution structure. Here, the uneven distribution structure is that at least one of the left and right slope portions 18 (for example, the right slope portion 18 (R)) across the center of the peak portion 16 is provided with an opening 14 and a protrusion 15. On the other hand, it means a structure in which the opening portion 14 and the protruding portion 15 are not provided on at least one of the left and right slope portions 18 (for example, the left slope portion 18 (L)).
If this uneven distribution structure is provided in at least one herringbone unit H, the following three-dimensional flow of the processing fluid can be realized, but an uneven distribution structure can also be adopted over a plurality of herringbone units H. However, an unevenly distributed structure can be adopted in all herringbone units H.

(Processing fluid flow)
By adopting the herringbone structure, it is considered that the fluid passing through the herringbone structure causes a spiral flow as shown by the swirling arrows in FIG. In addition to this, by providing the opening 14 and the protrusion 15 in the present invention, a turbulent flow as shown by a small arrow in FIG. This causes turbulent flow and generates a plurality of spiral flows in the same direction in one flow path, thereby further promoting heat exchange and catalytic reaction.
Furthermore, when only the herringbone structure is provided, the fluid that exceeds the bent region 26 may stay on the downstream side of the bent region 26. Taking the case where the direction of the flow path changes from the left transition region 24 to the right transition region 25 through the bent region 26, for example, in the portion that transitions from the bent region 26 to the right transition region 25, the right flow rate is higher than the left flow rate. May also be delayed, causing stagnation. Therefore, the opening 14 and the projecting portion 15 are provided on the right slope portion 18 where there is a possibility of stagnation. As a result, it is possible to mitigate the possibility of stagnation due to the fluid flowing in from the right channel.

As shown in FIG. 6, the processing fluid in the valley space 29 in the left inclined region 24 is introduced from the downstream to the upstream along the vertical reference line 27, but is inclined left and right by the left and right slope portions 18. Guided to do. At this time, since the left slope portion 18 is not provided with the opening 14 and the protrusion 15 and is inclined to the left as a whole, the processing fluid easily flows along the slope portion 18. On the other hand, since the opening 14 and the protrusion 15 are provided in the right slope portion 18, a part of the processing fluid divided by the protrusion 15 flows into the valley space 29 on the right side from the opening 14. In the adjacent valley space 29, the processing fluid tends to flow into the mountain space 28 from the opening 14 and the protrusion 15 provided on the left slope portion 18 of the valley bottom portion 17. In addition, since the protruding portion 15 does not protrude into the valley space 29, the inflow from the valley space 29 to the mountain space 28 is smaller than the inflow from the mountain space 28 to the valley space 29 described above. .
Next, in the right inclined region 25 from the bent region 26, the direction changes so as to incline to the right as a whole in the valley space 29, so that the inflow from the valley space 29 to the mountain space 28 increases and the left side of the mountain space 28 Since the opening portion 14 and the protruding portion 15 are not provided in the slope portion 18, the pressure of the flow of the processing fluid along the left slope portion 18 increases.
Along with this increase, as shown in FIG. 6 (B), the processing fluid along the left inclined surface portion 18 generates a flow of the processing fluid stacked below due to the downward flow. Three-dimensional process fluid movement and agitation, such as process fluid movement across the upper and lower layers, is encouraged.
In this way, when the processing fluid flows through the flow path in which the corrugated structures 11 are laminated, the processing fluid moves not only in the lateral direction but also in the vertical direction while suppressing pressure loss, and the stirring proceeds, so that the processing proceeds It can promote that the corrugated structure part 11 of the whole fluid contacts uniformly.
In addition, even if it is a case where the some metal sheet 10 is not piled up as shown in FIG.6 (B), this three-dimensional flow of the processing fluid acts on stirring of a processing fluid advantageously. For example, even when the metal sheet 10 is placed on a flat plate, when a downward flow occurs in the processing fluid along the left slope portion 18 as described above, the flow of the processing fluid on the flat plate disposed below is generated. Hits and generates upward flow. As a result, a three-dimensional processing fluid flow such as movement of the upper and lower processing fluids in one mountain space 28 is realized.

When a plurality of metal sheets 10 provided with the corrugated structure 11 are overlapped, various forms can be implemented. FIG. 8 shows the same form as FIG. 2, but shifted by 1.5 mm (about 17% of the length of each of the left transition area 24 and the right transition area 25) in the horizontal direction of the figure. . FIG. 9 shows the form of the phase difference, which is 1.5 mm (about 17% of the length of each of the left transition area 24 and the right transition area 25) in the left-right direction of the figure. It is shifted by 3.5 mm (about 32% of the length of each of the left transition area 24 and the right transition area 25) in the direction along the figure (vertical direction in the figure). FIG. 10 shows a configuration in which the front and back sides are reversed. Further, as shown in FIG. 11, the number of protrusions 15 can be changed or increased. If the length of each of the left transition region 24 and the right transition region 25 is 11 mm, the number of the protrusions 15 is appropriately about 1 to 6 in one transition region, and about 2 to 4 is about More preferred.

(About the sheet)
As the sheet body 40, those having various forms and functions can be used. For example, a metal lath 41 can also be adopted. As shown in FIG. 12, the metal lath 41 includes a large number of through holes 42 arranged in a staggered arrangement, and is manufactured by forming the through holes 42 by lath processing such as pressing a metal plate. obtain. The shape of the through hole 42 is generally a rhombus, but may be a rectangular shape such as a rectangular shape, and can be changed as appropriate. A portion not removed by the through hole 42 constitutes the mesh portion 43, and a catalyst capable of purifying exhaust gas or the like can be supported on the mesh portion 43. In addition, by forming a through hole 42 by lathing the metal plate, rolling is performed, whereby the thickness of the mesh portion 43 is reduced and the width in plan view is increased (see FIG. 12B). As a result, when the metal lath 41 is provided with an electrode or the like and energized and used as a heating element, the electrical resistance value of the through hole 42 changes and the surface area changes, so that the heating performance of the sheet body 40 and the heater can be used. The performance can be changed, and as shown in FIG. 13, the size and shape of the through hole 42 and the thickness and size of the mesh portion 43 can be variously changed depending on the degree of rolling. it can.

About the raw material of the metal lath 41, the same thing as the above-mentioned metal sheet 10 can be used, and nichrome alloy, Inconel alloy, etc. with high heat resistance can also be used. Further, the thickness is 0.01 to 0.1 mm, the opening ratio of the through hole 42 is 50 to 80%, and specifically, the plane area can be about 0.5 to 0.8 square cm. In addition, the width of the mesh portion 43 is suitably 0.1 to 0.5 mm, but these values can be changed as appropriate.

(Application example 1 of metal sheet)
Utilization as a single metal sheet 10 and a laminate of single metals As utilization as a single metal sheet 10, utilization as a carrier for supporting a catalyst or utilization as a heating element by carrying out with a metal having high electrical resistance is shown. be able to. Moreover, as shown in FIG.1 (C) and FIG. 2, the utilization as a laminated body which overlap | superposed the metal sheet 10 single-piece | unit directly can be shown.

In any case, contact of the processing fluid with the metal sheet 10 is increased while maintaining a good flow of the processing fluid around the metal sheet 10 (the thickness direction of the metal sheet 10 and the longitudinal direction of the corrugated structure 11). However, the structure of the metal sheet 10 described above presents a structure suitable for this. In particular, the corrugated structure portion suppresses an increase in pressure loss by the crest portion 12 and the trough portion 13 provided with the opening portion 14 and the protruding portion 15 extending in the vertical direction as a whole with left and right inclined regions 24 and 25. However, by promoting the movement and stirring of the three-dimensional processing fluid, it is possible to improve the flow of the processing fluid, the contact time of the entire processing fluid, and the contact area.

(Application example 2 of metal sheet)
Use as a laminated body 30 in which the metal sheet 10 and the sheet body 40 are combined. The metal sheet 10 and the sheet body 40 are used in a state where they are not joined to each other (including a state where both are not in contact with each other). Alternatively, the metal sheet 10 and the sheet body 40 can be used in a joined state. A structure in which the metal sheet 10 and the sheet body 40 are stacked in the thickness direction together with these states is referred to as a laminated body 30. In any case, the sheet body 40 is disposed on either the upper or lower side of the metal sheet 10. It is possible to adopt a form that is arranged and a form that is arranged on both sides.

(The form in which the metal sheet and the sheet body are not joined)
As a form in which the metal sheet 10 and the sheet body 40 are not joined, the metal sheet 10 and the sheet body 40 are brought into contact (particularly, in the case where the substantially flat peak portion 16 or valley bottom portion 17 is provided, surface contact). However, it may be in a state where no contact is made (particularly surface contact when a substantially flat peak portion 16 or valley bottom portion 17 is provided). However, when it implements in the state contacted, the effect which the above-mentioned protrusion part 15 protrudes inside can be exhibited effectively.

(The form in which the metal sheet and the sheet body are joined)
The form which joined the metal sheet 10 and the sheet | seat body 40 integrates both with a joining means, and comprises one sheet structure which does not isolate | separate. Any joining means may be used as long as both are integrated, but brazing or welding can be shown as a suitable example. When performing these joining means, the metal sheet 10 and the sheet body 40 need to be a metal that can be brazed or welded. At this time, as described above, the protrusion 15 is the corrugated structure 11. Since the peak portion 16 and the valley bottom portion 17 are substantially flat, the metal sheet 10 and the sheet body 40 can be brought into surface contact with each other, brazing or welding. It becomes possible to suppress defects. Examples of other joining means include joining with a fastening body such as a screw or rivet, adhesion with an adhesive, fixing with various tapes, and the like, and various joining means can be used in combination.

In addition, when joining the metal sheet 10 and the sheet | seat body 40, it can also implement so that brazing etc. may be formed only in the part. At this time, as shown in FIG. 14A, when brazing both side edges in the width direction of the web-shaped metal sheet 10 to the sheet body 40, the opening 14 and the protrusion By not forming the portion 15, the brazing area can be further increased. In addition, the area | region which does not form this opening part 14 and the protrusion part 15 can be implemented in various changes, such as providing in the center of the width direction of the web-shaped metal sheet 10 (refer FIG. 14 (B)).

As will be described later, when the metal sheet 10 and the sheet body 40 are overlapped and wound in a coil shape, they can be wound together in advance, but they are not joined in advance in consideration of the difference in the peripheral ratio between the two. The brazing agent may be wound on the end face formed in a coil shape after the winding is completed. Moreover, when joining the same person after completion of winding, it is also possible to stop both by joining both at the end of winding and at the inner periphery.

(Operation effect of the laminated body 30)
Regardless of the presence or absence of the above-described joining, in the laminated body 30, in addition to the advantages of the metal sheet 10 alone, a synergistic effect with the sheet body 40 can be exhibited.
In the relationship between the stacked body 30 and the surrounding processing fluid, the space is further limited by the presence of the sheet body 40 in addition to the peak portion 16 or the valley bottom portion 17 and the slope portion 18. At this time, when the sheet body 40 is implemented so as not to allow or restrict the passage of the processing fluid, the movement of the processing fluid between the stacked bodies 30 can be limited. On the other hand, when the through hole 42 is provided, the movement of the processing fluid between the stacked bodies 30 can be allowed. At that time, due to the presence of the space by the protrusion 15 and the opening 14, the movement of the processing fluid between the stacked bodies 30 can be sufficiently ensured. In particular, when movement of the processing fluid between the stacked bodies 30 is necessary, or when it is advantageous to move the processing fluid between the stacked bodies 30, it is preferable to provide the through holes 42.

(Specific usage mode 1)
The example of the specific utilization form in the case of using it as a laminated body of the metal sheet 10 simple substance or the metal sheet 10 simple substance is shown.
First, the metal sheet 10 can be used as a metal carrier that purifies air contaminated with automobile exhaust gas or PM discharged from a factory or the like. In this case, as the catalyst component, for example, a platinum group catalyst such as platinum (Pt) or palladium (Pd), or an active component such as vanadium (V), molybdenum (Mo), or tungsten (W) mainly composed of titanium oxide. What added the component can be used, and if necessary, a heat-resistant oxide layer such as alumina (Al ₂ O ₃ ) can be formed on the surface of the metal lath 41 to support the catalyst.

In addition, as the metal sheet 10, a material for a heater used in an air purification device or the like can be applied as a single body. In this case, the metal sheet 10 can be formed of a material having exothermic properties when energized, such as an Fe—Cr—Al alloy having a high specific resistance. And it can implement by providing the electrode for electricity supply in the appropriate location of the metal sheet 10. FIG.

Further, the metal sheet 10 may be made of a material having self-heating properties such as when energized, and the catalyst may be supported on the surface as described above. Thereby, the catalyst on the surface and the surrounding processing fluid can be heated by the self-heating property of the metal sheet 10.
In any case, the above-described structural features of the metal sheet 10 do not damage or damage other materials used with the metal sheet 10, and air flowing around the metal sheet 10 Disturbance can be generated in the processing fluid such as other gas, and the catalytic effect and the heating effect can be effectively exhibited. In use, the metal sheet 10 can be used in a flat plate shape, a flat metal sheet can be stacked to form a laminated body, or one or a plurality of metal sheets 10 are wound in a spiral shape. It can also be used as a coiled laminate.

Alternatively, the metal sheet 10 carrying the catalyst and the metal sheet 10 having a heat generation function may be formed separately and the two kinds of metal sheets 10 may be laminated.
In addition, the metal sheet 10 can be used in a flat plate shape, or can be wound in a spiral shape as in the case shown below.

(Specific use form 2)
An example of a specific usage form in the case of using the metal sheet 10 and the sheet body 40 as the laminated body 30 in which the metal sheets 10 and the sheet body 40 are stacked in the thickness direction is shown.
The laminated body 30 can be used as a flat sheet structure, but can be implemented as a coil structure 31 wound in a spiral shape as shown in FIG.

As a specific application example, an example applied to a metal carrier can be shown. At that time, as described above, the catalyst is supported on the metal sheet 10. The metal sheet 10 is wound in a spiral shape with the sheet body 40 being overlapped. The sheet body 40 can be made of non-woven fabric or non-porous metal foil. However, by using the sheet body 40 made of the metal lath 41 shown in FIGS. The processing fluid can also flow over a plurality of layers, and the movement of the three-dimensional processing fluid is promoted.

In addition, the metal sheet 10 and the sheet body 40 do not need to be joined, and may be joined. Since the peak portion 16 and the valley bottom portion 17 of the metal sheet 10 are substantially flat and the protruding portion 15 protrudes inward, the sheet body 40 is not damaged, and brazing is required when joining. And poor welding can be suppressed.

The winding direction is such that one end side in the longitudinal direction of the web is the inner peripheral end and the other end side is the outer peripheral end. In other words, the direction in which the peak portion 12 and the valley portion 13 extend is the width direction of the web. What is necessary is just to wind so that it may correspond to the axial direction of 31 substantially. Accordingly, the processing fluid can be flowed from one end surface in the axial direction of the coil structure 31 to the other end surface (from the lower surface to the upper surface in FIG. 15B), and the flowed processing fluid flows from the one end surface to the other end surface. During the movement, it is possible to move in the circumferential direction of the laminated body 30 and to promote the turbulence of the processing fluid. Moreover, the coil structure 31 can also be implemented as having a structure in which a band-shaped metal sheet 10 folded in two along the width direction is wound to form a coil shape. In this case, the crest portions 16 or the valley bottom portions 17 of the metal sheets 10 folded in half contact each other, but another sheet body 40 is interposed between the metal sheets 10 folded in half. It does not matter if they are

(Specific usage pattern 3)
The other example of the specific utilization form in the case of using as the laminated body 30 which accumulated the metal sheet 10 and the sheet | seat body 40 in the thickness direction is shown. Also in this example, as in the above-described specific utilization mode 2, the metal sheet 10 and the sheet body 40 are implemented as a coil structure 31 in which the metal sheet 10 and the sheet body 40 are wound as a laminated body 30, and a specific application example. As an example, the present invention is applied to a heater that can be used for various purposes.

In this example, the metal sheet 10 is an energizer having a large electrical resistance that can generate heat, and the sheet body 40 is an insulator, whereby the coil structure 31 is energized when energizing from an electrode provided on the metal sheet 10. Insulation between the metal sheets 10 overlapping each other in the radial direction is intended. Although a relatively expensive alumina sheet can be used for the sheet body 40, a silica coat that can be provided at a lower cost or the metal lath 41 described above can be used, and the metal lath 41 is subjected to an insulation treatment. To do. Examples of the insulation treatment include oxidation treatment and insulation coating. Also in this case, since the protruding portion 15 protrudes inward, there is no possibility of damaging or penetrating the sheet body 40 that is an insulator, so that insulation failure can be effectively suppressed.

Furthermore, by supporting the above-mentioned catalyst on the metal sheet 10 or the sheet body 40, a self-heating catalyst carrier that generates heat when energized can be provided.
Furthermore, it is possible to implement the sheet body 40 as a carrier and the metal sheet 10 as an insulator.

(Application to various devices)
The present invention can be applied to various devices. For example, various types of gas purification devices such as an exhaust gas purification device, a PM removal device, and a deodorization device for those carrying a porous body such as a catalyst and activated carbon. Can be applied to. Moreover, what functions as a heater can be applied to various heating apparatuses. More specifically, it can be applied as a heating unit or a purification unit in the air purification device of Japanese Patent Application Laid-Open No. 2015-223579 related to the applicant's application, and in the case of a self-heating catalyst support, It can also be implemented as an integrated composite unit.

Moreover, as an application example as a heater, a superheated steam generator can be shown, and a laminate 30 is adopted as an electric heating heater provided with electrodes, and steam is directly heated to generate superheated steam. Can be implemented as In this example, the water vapor can be directly heated by passing the water vapor from one end surface of the coil structure 31 to the other end surface, the size can be reduced, and the heating efficiency can be improved. It is.
As described above, the present invention can provide a metal sheet that can be used in various applications and a laminate using the metal sheet.

DESCRIPTION OF SYMBOLS 10 Metal sheet 11 Corrugated structure part 12 Mountain part 13 Valley part 14 Opening part 15 Protrusion part 16 Mountain top part 17 Valley bottom part 18 Slope part 20 Mountain bending part 21 Valley bending part 22 Vertical part 23 Lateral part 24 Left inclination area 25 Right inclination area 26 Bending area 27 Vertical reference line 28 Mountain space 29 Valley space 30 Laminated body 31 Coil structure 33 Brazed portion 40 Sheet body 41 Metal lath 42 Through hole 43 Net line portion

Claims (9)

1. A metal sheet provided with a corrugated structure portion that is arranged in a processing fluid that flows from upstream to downstream as a whole, and in which a plurality of crests extending in the flow direction of the processing fluid and troughs extending in the flow direction are alternately arranged in the lateral direction. In
   The corrugated structure portion includes a peak portion of the peak portion, a valley bottom portion of the valley portion, and a slope portion connecting the peak portion and the valley bottom portion,
   The corrugated structure includes an opening that allows the processing fluid to move in a lateral direction, and a protrusion that protrudes from the opening.
   The crests and the troughs extend in the vertical direction by alternately repeating a left inclined region inclined rightward and a right inclined region inclined rightward with respect to a vertical reference line across a bent region. And
   One bending area, one left inclined area and one right inclined area sandwiching the bending area as one unit, at least one of the left and right sides sandwiching the center of the peak portion in one unit. The opening and the protrusion are provided at least on the slope portion, and the opening and the protrusion are not provided on at least the other slope portion with respect to the center of the peak portion. A metal sheet characterized by this.
2. One bending area, one left inclined area and one right inclined area sandwiching the bending area as one unit, and at least one of the left and right sides sandwiching the center of the peak portion in all units. The opening portion and the protruding portion are provided on the slope portion, and the opening portion and the protruding portion are not provided on at least the other slope portion with respect to the center of the peak portion. The metal sheet according to claim 1.
3. The mountain top portion, the valley bottom portion, and the slope portion each include a flat surface,
   The opening is provided between a valley bent portion between the valley bottom portion and the slope portion, and the slope portion on the opposite side across the peak portion,
   2. The metal according to claim 1, wherein both ends of the protruding portion are connected to the valley bottom portion and the slope portion, and do not protrude upward from the peak portion or downward from the valley bottom portion. Sheet.
4. A metal sheet provided with a corrugated structure portion that is arranged in a processing fluid that flows from upstream to downstream as a whole, and in which a plurality of crests extending in the flow direction of the processing fluid and troughs extending in the flow direction are alternately arranged in the lateral direction. In
   The corrugated structure includes an opening that allows the processing fluid to move in a lateral direction, and a protrusion that protrudes from the opening.
   The peak portion and the valley portion extend in the vertical direction by alternately repeating a left inclined region inclined obliquely to the left and a right inclined region inclined obliquely to the right with respect to a vertical reference line,
   The corrugated structure portion includes a peak portion of the peak portion, a valley bottom portion of the valley portion, and a slope portion connecting the peak portion and the valley bottom portion,
   The protrusion has a band shape, and both ends of the band are connected to the corrugated structure at both ends of the opening,
   The mountain top portion, the valley bottom portion, and the slope portion each include a flat surface,
   The opening is provided between a valley bent portion between the valley bottom portion and the slope portion, and the slope portion on the opposite side across the peak portion,
   Both ends of the protruding portion are connected to the valley bottom portion and the slope portion, and the protruding portion does not protrude upward from the peak portion or downward from the valley bottom portion.
5. 5. The metal sheet according to claim 1, wherein the metal sheet is used for at least one of the group consisting of a heater, a self-heating catalyst carrier and a catalyst carrier.
6. 5. The metal sheet according to claim 1, wherein the metal sheet is made of an Fe—Cr—Al alloy.
7. A laminate comprising a plurality of the metal sheets according to any one of claims 1 to 4 stacked in a thickness direction.
8. The laminate according to claim 7, wherein a sheet body is interposed between the metal sheet and the metal sheet.
9. The coiled laminate according to any one of claims 1 to 4, wherein the laminate is wound in a spiral shape, and the axial direction of the spiral is the flow direction of the processing fluid.

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