TW202300853A - Heat generating device - Google Patents

Abstract

Provided is a heat generating device having high heat generating efficiency and heat exchange efficiency, and high durability. This heat generating device comprises: a plate-shaped heat generating body (5) that generates heat through the occlusion and release of hydrogen; a first flow path (6) into which a hydrogen-based gas containing the hydrogen is introduced, and which supplies hydrogen to the heat generating body (5); and a second flow path (7) in which transmitted gas containing hydrogen that has been transmitted through the heat generating body (5) flows, wherein the first flow path (6) and the second flow path (7) are respectively disposed on both sides of the heat generating body (5), and a first partition wall (24) forming the second flow path (7) between the heat generating body (5) and the first partition wall is provided with a support (25) protruding toward the heat generating body (5) in order to receive the deformed heat generating body (5). The support (25) is formed by a plurality of metal pins or plates.

Description

heating device

The present invention relates to a heat generating device having a heat generating body that generates heat by absorbing and releasing hydrogen.

It is known that hydrogen storage alloys have the property of repeatedly absorbing and releasing a large amount of hydrogen under certain reaction conditions, and the hydrogen storage and release will be accompanied by a considerable amount of reaction heat. Heat utilization systems or hydrogen storage systems such as heat pump systems, heat transfer systems, cooling and heating (refrigerating) systems, and hydrogen storage systems utilizing the heat of reaction have been disclosed in the industry (for example, refer to Patent Documents 1 and 2).

In addition, the present applicants have obtained the knowledge that, in a heat generating device equipped with a heat generating body using a hydrogen storage alloy or the like, by constituting the heat generating body with a support and a multilayer film supported by the support, hydrogen is stored in the heat generating device. Heat is generated when hydrogen is released into the body and when hydrogen is released from the heat generating body. Furthermore, the present applicant et al. proposed a heat utilization system and a heat generating device based on such knowledge (refer patent document 3).

Specifically, the support of the heating element of the heating device includes at least any one of a porous body, a hydrogen permeable membrane, and a proton dielectric. A first layer of metal or hydrogen storage alloy with a thickness of less than 1000 nm and a second layer different from the first layer including hydrogen storage metal, hydrogen storage alloy or ceramics with a thickness of less than 1000 nm are laminated alternately. [Prior Art Literature] [Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. 56-100276 [Patent Document 2] Japanese Patent Laid-Open No. 58-022854 [Patent Document 3] Japanese Patent No. 6749035

[Problem to be solved by the invention]

However, in the heat generating device disclosed in Patent Document 3, the heat generating elements that generate heat are not assembled in a highly densely integrated state, so the heat generating elements cannot efficiently generate heat, and there is still room for improvement.

Therefore, as shown in FIG. 15, it is conceivable that the first flow path 106 for introducing a hydrogen-based gas containing hydrogen into the heating element 105 and the second flow path for the hydrogen passing through the heating element 105 to flow in are respectively arranged on both sides of the heating element 105. In the channel 107, the heating elements 105, the first flow channel 106 and the second flow channel 107 are stacked at high density, thereby making the heating device 101 small, compact, and high-output with high heating efficiency. In the heat generating device 101 having such a configuration, the heat generating element 105 generates heat as the hydrogen introduced into the first flow path 106 passes through the heat generating element 105 . In this case, the hydrogen passing through the heating element 105 (hereinafter, sometimes referred to as “permeated hydrogen”) flows into the second flow path 107 , so the pressure of the second flow path 107 is lower than the pressure of the first flow path 106 .

Here, the heating element 105 is very thin and contains a hydrogen-absorbing metal or hydrogen-absorbing alloy that is easy to bend. Therefore, as shown in FIG. Arc-curved surface, while being subjected to tensile stress in the transverse direction of the film surface. If the stress exceeds the yield stress of the material of the heating element 105, the heating element 105 will undergo large plastic deformation. Therefore, changes in the amount of hydrogen permeated through the heating element 105 or the cross-sectional shapes of the first flow path 106 and the second flow path 107 may cause the flow rate of hydrogen or pressure loss to change from the initial value. The flow of hydrogen stops due to the closure of the second flow path 107, or the heating element 105 is cracked, and a large amount of hydrogen flows out from the first flow path 106 to the second flow path 107, and the first flow path 106 and the second flow path 107 The pressure difference is greatly reduced, causing the function of the heating device to stop. In order to prevent the generation of this bad situation, it is conceivable to make the thickness of the heating element 105 thicker, but if the thickness of the heating element 105 is thickened, the diffusion of hydrogen in the heating element 105 will be hindered, and the desired effect cannot be obtained. Heat issue.

In addition, the heat transfer path generated by the heating element 105 to the outside is the solid heat conduction between the heating element 105 and the fastening part of the container not shown, and the connection between the first flow path 106 and the second flow path 107 in the container. Heat radiation and hydrogen convection and heat conduction. The thermal conductivity per unit area of the radiation and convection of hydrogen gas and heat conduction is relatively smaller than that of solid heat conduction such as metals. Under the operating conditions of reducing the density (pressure) of hydrogen gas to prevent the deformation of the heating element 105 as described above, the heat conduction smaller, and therefore, it may be difficult to obtain a heat flow that properly maintains the temperature of the heat generating body 105 . In other words, the heat generating body 105 may overheat.

The present invention was made in view of the above problems, and an object of the present invention is to provide a heat generating device having high heat generation efficiency and heat exchange efficiency and high durability. [Technical means to solve the problem]

In order to achieve the above object, the heat generating device of the present invention includes a flat plate-shaped heat generating element that generates heat by absorbing and releasing hydrogen, and a first flow path that introduces a hydrogen-based gas containing the hydrogen and supplies hydrogen to the heat generating element. , and a second flow path for the permeated gas including hydrogen passing through the above-mentioned heating element to flow, and the above-mentioned first flow path and the above-mentioned second flow path are respectively arranged on both sides of the above-mentioned heating element. The first partition wall forming the second flow path between the heat generating elements is provided with a bracket protruding toward the heat generating element for supporting the deformed heat generating element. [Effect of Invention]

According to the present invention, even if the heating element is deflected and deformed in such a way that it bulges toward the side of the second flow path where the pressure is lower due to the differential pressure between the first flow path and the second flow path, the deflection deformation of the heat generating element will be caused by The bracket supporting the heating element is suppressed smaller. Therefore, the stress caused by the deformation of the heating element is suppressed smaller, the durability of the heating element is improved, and the heating effect of the heating element is not hindered by the deformation, and the heating element can perform the heating effect stably. Obtain higher heating efficiency and heat exchange efficiency.

Embodiments of the present invention will be described below based on the accompanying drawings.

[heating device] 1 is a block diagram showing the basic structure of the heating device of the present invention. The heating device 1 shown in the figure has a heating module M, a temperature adjustment part T, a hydrogen circulation line L1, a control part 2 and an airtight container 3. In addition, in FIG. 1, the connection point of the black dot represents the connection part of several pipes.

The heating module M is housed inside the airtight container 3 and includes two laminated structures 4 and one electric heater 9 . Each laminated structure 4 has a heating element 5 that generates heat by absorbing and releasing hydrogen, a first flow path 6 that introduces a hydrogen-based gas containing hydrogen and supplies hydrogen to the heating element 5 , and passes through the heating element 5 . Hydrogen (hereinafter referred to as "permeated hydrogen") and hydrogen-based gas (hereinafter referred to as "permeated gas") flow through the second channel 7, and between the permeated gas flowing through the second channel 7 The third flow path 8 where the heat medium for heat exchange flows, and the second flow path 7, the heating element 5, and the first flow path are sequentially connected from the third flow path 8 on both sides of the third flow path 8. It is composed of 6 symmetrical strata. The electric heater 9 is an example of heating means for heating the heating element 5, but is not limited thereto.

Here, the hydrogen-based gas includes isotopes of hydrogen, and the hydrogen-based gas includes at least one of protium gas and deuterium gas. Protium gas includes a naturally occurring mixture of protium and deuterium, ie a mixture of 99.985% protium and 0.015% deuterium. In FIG. 1 , the hydrogen-based gas that supplies hydrogen to the heating element 5 is represented as "hydrogen", and the permeated gas including permeated hydrogen passing through the heating element 5 is represented as "permeated hydrogen". Furthermore, in the manufacture of the heat generating module M, it is desirable to diffusely bond each member. The details of the heating module M will be described below.

The temperature adjustment unit T functions to adjust the temperature of the heating element 5 and maintain the heating element 5 at a temperature capable of generating heat (for example, 50° C. to 1500° C.). This temperature adjustment unit T includes an electric heater 9 , a power supply 10 that supplies power to the electric heater 9 , a temperature sensor 11 such as a thermocouple that detects the temperature of the electric heater 9 , and controls the temperature based on the temperature detected by the temperature sensor 11 . The control part 2 of the output of the power supply 10.

The hydrogen circulation line L1 repeatedly performs the following operation: introduce hydrogen-based gas containing hydrogen into the first flow paths 6 of the laminated structures 4 respectively provided in the heating module M, and transfer the hydrogen-based gas containing hydrogen through the first flow path 6 to generate heat. The element 5 recovers the permeated gas of the permeated hydrogen that the heating element 5 generates and flows into the second flow path 7 , and returns it to the first flow path 6 .

The hydrogen circulation line L1 has an introduction pipe 12 for introducing hydrogen-based gas into the first flow path 6 of the laminated structure 4 provided in the heating module M, and a second flow path 7 from the laminated structure 4 of the heating module M. A recovery pipe 13 for recovering permeated gas, and a circulation pump 14 connected to the introduction pipe 12 and the recovery pipe 13 . In the heating device 1 , the heating module M and the hydrogen circulation line L1 form a closed loop for circulating the hydrogen-based gas.

The introduction pipe 12 extends from the discharge side of the circulation pump 14, and is connected to each of the first flow paths 6 of the respective laminated structures 4 provided in the heating module M by branch pipes 15, respectively. Therefore, the hydrogen-based gas is introduced into each of the first channels 6 from the introduction pipe 12 through the branch pipe 15 .

The recovery pipe 13 is connected to the suction port of the circulation pump 14, and is connected to the respective second flow paths 7 of the respective laminated structures 4 provided in the heating module M through branch pipes 16, respectively. Therefore, the permeated gas flowing through the second flow path 7 is heated by the heating element 5 to become high temperature, and is recovered to the recovery pipe 13 through each branch pipe 16 to be reused as a hydrogen-based gas for supplying hydrogen to the heating element 5 .

The circulation pump 14 circulates the hydrogen-based gas between the heating module M and the hydrogen circulation line L1 forming a closed loop, for example, a metal telescopic pump is used. The circulation pump 14 is electrically connected to the control unit 2 and controlled by a control signal from the control unit 2 .

A buffer tank 17 , a pressure regulating valve 18 and a filter 19 are provided in the middle of the introduction pipe 12 . The buffer tank 17 is used to store the hydrogen-based gas and absorb the flow rate variation of the hydrogen-based gas. The pressure regulating valve 18 is electrically connected to the control unit 2 and functions to adjust the pressure of the hydrogen-based gas supplied from the buffer tank 17 by adjusting the opening degree using the control signal from the control unit 2 .

The filter 19 is used to remove impurities contained in the hydrogen-based gas. Here, the amount of hydrogen passing through the heating element 5 (hydrogen permeation amount) of each laminated structure 4 provided in the heating module M depends on the temperature of the heating element 5, the pressure difference between the two sides of the heating element 5, and the temperature of the heating element. 5, but when impurities are contained in hydrogen, the impurities may adhere to the surface of the heating element 5 and cause the surface condition of the heating element 5 to deteriorate. When the surface state of the heating element 5 deteriorates, the adsorption and dissociation of hydrogen molecules on the surface of the heating element 5 are hindered, resulting in a decrease in the amount of hydrogen permeation. Those that hinder the adsorption and dissociation of hydrogen molecules on the surface of the heating element 5 include, for example, water (including water vapor), hydrocarbons (methane, ethane, methanol, ethanol, etc.), C, S, Si, and the like. Water (including water vapor), hydrocarbons, C, S, Si, etc., which are impurities contained in hydrogen are removed by the filter 19, thereby suppressing a decrease in the hydrogen permeation amount in the heating element 5.

The control part 2 is electrically connected with each part of the heating device 1, and controls the operation of each part. The control unit 2 is equipped with storage units such as CPU (Central Processing Unit, central processing unit), ROM (Read Only Memory, read-only memory) or RAM (Random Access Memory, random access memory), etc., in the CPU, use Programs or data stored in ROM or RAM perform various calculations.

The airtight container 3 is formed as a stainless steel (SUS) hollow container, for example. The material of the airtight container 3 is preferably a material with high corrosion resistance and pressure resistance, such as carbon steel, Worth field stainless steel, corrosion-resistant non-ferrous alloy steel, and the like. Also, the material of the airtight container 3 can also be a material that reflects the radiant heat generated by the heating element 5 below, such as nickel (Ni), copper (Cu), molybdenum (Mo) and the like. In this embodiment, the shape of the airtight container 3 is a square cylinder, but it is not limited thereto, and may be an angular column shape, a cylinder shape, an ellipse cylinder shape, etc. other than the square cylinder shape.

(heating module) Next, the configuration of the heating module M will be described below based on FIGS. 2 to 4 .

2 is an exploded perspective view of the heating module M, FIG. 3 is an exploded perspective view of the laminated structure 4 constituting the heating module M, and FIG. 4 is a top view of the electric heater 9 installed in the heating module M.

As shown in FIG. 2 , the heating module M is formed by stacking two laminated structures 4 in two stages in the vertical direction (the Z-axis direction in FIG. 2 ). The lowermost first flow channel 6 of the upper layered structure 4 faces the uppermost first flow channel 6 of the lower layered structure 4 . In the example shown in FIG. 2 , the heating module M is formed in a square column shape. In the following description, in the heating device 1 and each member constituting the heating device 1, the surface on the upper side in the Z-axis direction is taken as the upper surface, the surface on the lower side in the Z-axis direction is taken as the bottom surface, and the surface on the Y-axis direction is taken as the bottom surface. The left side in the direction is the front side, the right side in the Y-axis direction is the back side, the right side in the X-axis direction is the right side, and the left side in the X-axis direction is the left side.

As shown in FIG. 3 , the first flow path 6 includes a flat plate portion 6a formed in a flat plate shape and a wall portion 6b provided on the flat plate portion 6a. The flat plate part 6a and the wall part 6b are made of stainless steel, for example. The flat plate portion 6a is formed in a quadrangular shape in plan view. The wall part 6b is provided in the edge part of 3 sides among the edge parts of 4 sides of the flat plate part 6a. In FIG. 3 , the wall portion 6b is provided on the left and right edge portions in the X-axis direction and the right edge portion in the Y-axis direction among the four edge portions of the flat plate portion 6a. The wall portion 6b constituting the first flow path 6 on the lower side protrudes toward the upper side in the Z-axis direction, and the wall portion 6b constituting the first flow path 6 on the upper side protrudes toward the lower side in the Z-axis direction. A hydrogen introduction port 6c is provided on the front side (the left side in the Y-axis direction) of the first flow path 6, that is, the edge portion of one side not provided with the wall portion 6b among the four edge portions of the flat plate portion 6a. The hydrogen introduction port 6c is connected to a branch pipe 15 of the hydrogen supply line L1 (see FIG. 1 ).

The second flow path 7 includes a flat plate portion 7a formed in a flat plate shape and a wall portion 7b provided on the flat plate portion 7a. The flat plate portion 7a and the wall portion 7b are made of stainless steel, for example. The flat plate portion 7a is formed in a quadrangular shape in plan view. The wall part 7b is provided in the edge part of 3 sides among the edge parts of 4 sides of the flat plate part 7a. In FIG. 3 , the wall portion 7b is provided on the left and right edge portions in the X-axis direction and the left edge portion in the Y-axis direction among the edge portions of the four sides of the flat plate portion 7a. The wall portion 7b constituting the second flow path 7 on the lower side protrudes toward the lower side in the Z-axis direction, and the wall portion 7b constituting the second flow path 7 on the upper side protrudes toward the upper side in the Z-axis direction. A hydrogen recovery port 7c is provided on the back side of the second flow path 7 (the right side in the Y-axis direction), that is, the edge portion of one of the four edges of the flat plate portion 7a without the wall portion 7b. In FIG. 3 , the hydrogen recovery port 7c provided on the back side of the second channel 7 on the lower side is hidden behind the paper. The hydrogen recovery port 7c is connected to the branch pipe 16 of the hydrogen circulation line L1 (see FIG. 1 ).

The third flow path 8 is formed in a flat plate shape, and includes two flat plate portions 8a arranged with a gap between them, and two wall portions 8b provided between the two flat plate portions 8a and arranged with a gap between them. The flat plate part 8a and the wall part 8b are made of stainless steel, for example. The flat plate portion 8a is formed in a quadrangular shape in plan view, and is arranged up and down along the Z-axis direction. The wall part 8b is provided in the edge part of 2 sides which mutually oppose among the edge part of 4 sides of the flat plate part 8a. In FIG. 3 , the wall portion 8 b is provided at the left and right edge portions in the Y-axis direction among the edge portions of the four sides of the flat plate portion 8 a. A heat medium inlet 8c is provided on the right side of the third channel 8 (the right side in the X-axis direction), and a heat medium is provided on the left side of the third channel 8 (the left side in the X-axis direction). Recovery port 8d. The heat medium introduction port 8c is connected to a branch pipe 31e (see FIG. 1 ) of a heat medium circulation line L2 described below. The heat medium recovery port 8d is connected to a branch pipe 31f (see FIG. 1 ) of the heat medium circulation line L2 described below. The third flow path 8 constitutes a part of the heat medium circulation line L2.

The electric heater 9 is installed between the two facing first channels 6 of the two laminated structures 4 stacked up and down, that is, the first channel 6 at the bottom of the upper layered structure 4 and the laminated layer on the lower side Between the uppermost first channels 6 of the structure 4 (see FIG. 2 ). The electric heater 9 heats the heating element 5 to a temperature capable of generating heat (for example, 50° C. to 1500° C.) through the first flow path 6 . In this embodiment, since the electric heater 9 is provided at the central portion of the heating module M in the vertical direction, the temperature of the heating module M as a whole rises efficiently.

As shown in Figure 4, the electric heater 9 is formed by installing the heating wire 9b on both sides of a rectangular plate-shaped base 9a in a state of repeatedly bending into a rectangular wave shape. The above-mentioned rectangular plate-shaped base 9a includes a Molybdenum, nickel and other metals or high heat-resistant alloys, or ceramics such as alumina and silicon carbide that are high heat-resistant and do not react with hydrogen. When the material of the base 9a is conductive such as metal, the heating wire 9b is attached to the base 9a via insulating ceramics. Here, the heating wire 9b is composed of molybdenum or tungsten with high resistance. By installing the heating wire 9b repeatedly bent at right angles into a rectangular wave shape as described above, the heating area of the electric heater 9 is increased, thereby increasing the heat generation. Furthermore, in this embodiment, the heating wire 9b is attached to both surfaces of the base 9a to constitute the electric heater 9, but the heating wire 9b may be attached only to one side of the base 9a. Not shown in FIG. 4 , a temperature sensor 11 (see FIG. 1 ) is provided on the base 9 a of the electric heater 9 , and a power supply 10 (see FIG. 1 ) is electrically connected to the heating wire 9 b. Also, in the electric heater 9, a thin strip-shaped surface heater may be used instead of the heating wire 9b.

Here, the characteristic configuration of the heat generating device 1 of the present embodiment will be described below based on FIGS. 5 and 6 .

Fig. 5 is an enlarged detailed view of part A of Fig. 1, and Fig. 6 is a cross-sectional view of the B-B line of Fig. 5. Below, only one (upper) layered structure 4 is illustrated and described, but the other (lower side) ) The characteristic configuration of the laminated structure 4 is also the same, so the illustrations and descriptions related thereto are omitted.

As shown in FIG. 5, in the laminated structure 4, the first partition wall (the partition wall between the first flow path 6 and the second flow path 7) forming the second flow path 7 is formed between the heating element 5 and the heat generating element 5. 24 and the opposite surface of the heating element 5 (the lower surface in FIG. 5 ), protruding toward the heating element 5 is provided with a bracket 25 for supporting the deformed heating element 5 . Here, in this embodiment, as shown in FIG. 6 , the bracket 25 is formed by assembling a plurality of metal plates into a lattice shape, and its protruding length L (refer to FIG. 5 ) is set to be smaller than the height of the second flow path 7 H (L<H). Therefore, when the heating device 1 is not in operation (when the heating element 5 is not deformed), the front end of the bracket 25 does not contact the heating element 5, and a gap δ shown in the figure is formed between the two.

The bracket 25 may protrude integrally with the first partition wall 24 , or the bracket 25 separated from the first partition wall 24 may be attached to the first partition wall 24 . Here, as the bracket 25, any metal may be used as long as it is a metal having high heat resistance, pressure resistance, and thermal conductivity, and nickel (Ni) is used in the present embodiment. Also, as the bracket 25, a plurality of pins made of metal can be used in addition to the plate, but when the bracket 25 is constituted by a metal plate as in the present embodiment, in order not to hinder the flow through the heating element 5 to the second The flow of hydrogen (permeable hydrogen) in the flow path 7 requires forming holes 25a through which hydrogen (permeable hydrogen) passes in each metal plate as described in FIGS. 5 and 6 . Furthermore, a notch may be formed in each metal plate instead of the hole 25a.

In addition, in the laminated structure 4, as shown in FIG. The surface of the partition wall 24 facing the second partition wall 26 (the upper surface in FIG. 5 ) is protrudingly provided with cooling pins and cooling fins at equal intervals in the flow direction of the heat medium (the left-right direction in FIG. 5 ). A plurality of heat dissipation members 27 made of metal. Here, the front end of each heat dissipation member 27 is in contact with the second partition wall 26 . In addition, in this embodiment, stainless steel (SUS) is used for the 1st partition wall 24 and the 2nd partition wall 26. Moreover, the heat dissipation member 27 can use any metal as long as it is a metal with high heat resistance, pressure resistance, and thermal conductivity similarly to the bracket 25, and nickel (Ni) is used in this embodiment. In each heat dissipation member 27, similarly to the bracket 25, a hole or a cutout through which the heat medium passes may be formed.

Also, in this embodiment, a plurality of heat dissipation members 27 are protruded integrally with the first partition wall 24, but the heat dissipation members 27 may be formed separately from the first partition wall 24, and these heat dissipation members 27 may be attached to the first partition wall. Partition wall 24 . Also, in this embodiment, the heat dissipation member 27 is provided on the first partition wall 24, but the heat dissipation member 27 may be provided on the second partition wall 26 side so that the front end of each heat dissipation member 27 is in contact with the first partition wall 24. .

Moreover, in this embodiment, as shown in FIG. 5, when the heating device 1 is not in operation (when the heating element 5 is not deformed), the front ends of the plurality of brackets 25 protruding integrally from the first partition wall 24 do not contact with each other. The heating element 5 has a gap δ formed therebetween, but as shown in FIG. 7 , when the heating device 1 is not in operation, the front ends of a plurality of brackets 25 are in contact with the heating element 5 .

＜Composition and mechanism of heating element＞ Next, the configuration of the heating element 5 will be described below based on FIG. 8 .

8 is a cross-sectional view showing the structure of the heating element 5. As shown in this figure, the heating element 5 has a support 5A and a multilayer film 5B. The support 5A includes a hydrogen storage metal, a hydrogen storage alloy or a proton dielectric. Here, as the hydrogen absorbing metal, for example, Ni, Pd, V, Nb, Ta, Ti or the like are used. As the hydrogen storage alloy, for example, LaNi ₅ , CaCu ₅ , MgZn 2 , ZrNi ₂ , ZrCr _{2 ,} TiFe, TiCo, Mg ₂ Ni, Mg ₂ Cu or the like are used. As the proton dielectric, for example, BaCeO ₃ system (such as Ba(Ce _0.95 Y _0.05 )O _3-6 ), SrCeO ₃ system (such as Sr(Ce _0.95 Y _0.05 )O _3-6 ), CaZrO ₃ system (such as Ca (Zr _0.95 Y _0.05 )O _{3- α} ), SrZrO ₃ system (for example, Sr(Zr _0.9 Y _0.1 )O _{3- α} ), βAl ₂ O ₃ , βGa ₂ O ₃ and the like.

The support 5A may also include a porous body or a hydrogen permeable membrane. The porous body has a plurality of pores of a size allowing hydrogen-based gas to pass through. The porous body includes, for example, materials such as metals, nonmetals, and ceramics. The porous body preferably contains a material that does not inhibit the exothermic reaction between hydrogen and the multilayer film 5B. The hydrogen permeable membrane includes a material permeable to hydrogen. The material of the hydrogen permeable membrane is preferably a hydrogen storage metal or a hydrogen storage alloy. The hydrogen permeable membrane also includes a sheet having a mesh shape.

The multilayer film 5B is formed on the support 5A. In this embodiment, the multilayer film 5B is formed on one surface of the support 5A (the left end surface and the right end surface in FIG. 8 ). In FIG. 8 , only the multilayer film 5B formed on one side of the support 5A (the left end surface of FIG. 8 ) is shown, and the multilayer film 5B formed on the other side of the support 5A (the right end surface of FIG. 8 ) is omitted. icon. Furthermore, the multilayer film 5B is not limited to being formed on both sides of the support 5A, and may be formed only on one side of the support 5A or only on the other side of the support 5A.

The multilayer film 5B has a first layer 51 including a hydrogen-absorbing metal or a hydrogen-absorbing alloy, and a second layer 52 different from the first layer 51 including a hydrogen-absorbing metal, a hydrogen-absorbing alloy, or ceramics. A foreign substance interface 53 is formed with the second layer 52 . In the example shown in FIG. 8 , the multilayer film 5B is formed on one side of the support 5A (the left end surface in FIG. 8 ) so that a total of 10 layers of five first layers 51 and five second layers 52 are alternately stacked in sequence. Membrane structure. Furthermore, the number of the first layer 51 and the second layer 52 is arbitrary, and may be different from the example shown in FIG. and the first layer 51 to form a multilayer film. In addition, the multilayer film 5B only needs to have at least one first layer 51 and at least one second layer 52 each, and to provide one or more dissimilar substance interfaces 53 formed between the first layer 51 and the second layer 52 .

The first layer 51 contains, for example, any of Ni, Pd, Cu, Mn, Cr, Fe, Mg, Co, and alloys thereof. Here, as the alloy constituting the first layer 51 , it is preferable to include two or more of Ni, Pd, Cu, Mn, Cr, Fe, Mg, and Co. In addition, as the alloy constituting the first layer 51, Ni, Pd, Cu, Mn, Cr, Fe, Mg, and Co may be added with additives.

The second layer 52 includes, for example, any of Ni, Pd, Cu, Mn, Cr, Fe, Mg, Co, alloys thereof, or SiC. Here, as the alloy constituting the second layer 52, it is preferable to include two or more of Ni, Pd, Cu, Mn, Cr, Fe, Mg, and Co. In addition, as the alloy constituting the second layer 52, Ni, Pd, Cu, Mn, Cr, Fe, Mg, and Co may be added with additives.

Regarding the combination of the first layer 51 and the second layer 52, if the type of element is expressed as "the first layer - the second layer", it is preferably Pd-Ni, Ni-Cu, Ni-Cr, Ni-Fe, Combination of Ni-Mg and Ni-Co. Furthermore, when the second layer 52 is made of ceramics, a combination of Ni-SiC is desirable.

The thicknesses of the first layer 51 and the second layer 52 constituting the multilayer film 5B of the heat generating element 5 are preferably each less than 1000 nm. If the respective thicknesses of the first layer 51 and the second layer 52 are less than 1000 nm, the first layer 51 and the second layer 52 can maintain a nanostructure that does not exhibit bulk characteristics. Incidentally, when the respective thicknesses of the first layer 51 and the second layer 52 are 1000 nm or more, it is difficult for hydrogen to permeate the multilayer film 5B. The respective thicknesses of the first layer 51 and the second layer 52 are preferably less than 500 nm. If the respective thicknesses of the first layer 51 and the second layer 52 are less than 500 nm, the first layer 51 and the second layer 52 can maintain a nanostructure that does not exhibit bulk characteristics at all. As shown in FIG. 8 , the heating element 5 is configured such that hydrogen hops and permeates through the multilayer film 5B. That is, the inter-substance interface 53 formed between the first layer 51 and the second layer 52 allows hydrogen to pass through. In FIG. 8 , the case where hydrogen hops and permeates through the multilayer film 5B is indicated by a dotted arrow.

Here, the mechanism of heat generation (generation of excess heat) when hydrogen passes through the heating element 5 will be described based on FIG. 9 .

FIG. 9 is a schematic diagram illustrating the mechanism of excessive heat generation in the heating element 5 . Fig. 9 shows that the first layer 51 and the second layer 52 of the multilayer film 5B of the heating element 5 include a hydrogen storage metal with a face-centered cubic structure, and the hydrogen in the metal lattice of the first layer 51 moves to the The situation in the metal lattice of the second layer 52. When hydrogen is supplied to the heating element 5, the support 5A and the multilayer film 5B absorb hydrogen. Here, even if the supply of hydrogen is stopped, the heating element 5 maintains a state where hydrogen is absorbed by the support body 5A and the multilayer film 5B.

Then, when the heating of the heating element 5 is started by the electric heater 9, the hydrogen occluded by the support 5A and the multilayer film 5B is released. Here, it is known that hydrogen is relatively light, and in the position (octahedral or tetrahedral position) occupied by the hydrogen of a certain substance A and substance B, the hydrogen jumps and performs quantum diffusion. In the heating element 5, hydrogen permeates the heterogeneous substance interface 53 by quantum diffusion, or hydrogen permeates the heterogeneous substance interface 53 by diffusion, and generates heat exceeding the heating value of the electric heater 9 as excess heat.

In this embodiment, the first flow path 6, the first flow path 6, The heating element 5 and the second flow path 7. Therefore, the first flow path 6 is pressurized by introducing the hydrogen-based gas, and the second flow path 7 is depressurized by recovering the permeated gas. Thereby, the pressure of hydrogen in the first channel 6 (referred to as "hydrogen partial pressure") is higher than the hydrogen partial pressure in the second channel 7, and a hydrogen pressure difference (referred to as "hydrogen partial pressure") is generated on both sides of the heating element 5. partial pressure difference").

If the difference in hydrogen partial pressure occurs on both sides of the heating element 5 as described above, the hydrogen molecules contained in the hydrogen-based gas introduced into the first flow path 6 are adsorbed on one side (front side) of the heating element 5, and the hydrogen molecules It dissociates into two hydrogen atoms, and the dissociated hydrogen atoms permeate into the heating element 5 . That is, hydrogen is stored in the heating element 5 . The hydrogen atoms infiltrated into the heating element 5 permeate the heterogeneous substance interface 53 by quantum diffusion, or permeate the heterogeneous substance interface 53 by diffusion. On the other side (rear surface) disposed on the low-pressure side of the heating element 5 , the hydrogen atoms passing through the heating element 5 are bonded again to become hydrogen molecules and released to the second flow path 7 . That is, hydrogen is released from the heating element 5 .

As described above, the heating element 5 generates excess heat by passing hydrogen from the first flow path 6 on the high-pressure side to the second flow path 7 on the low-pressure side. By keeping the first flow path 6 at a higher pressure than the second flow path 7, it is possible to maintain a state where hydrogen is stored on the front surface of the heating element 5 and hydrogen is released on the back surface of the heating element 5 simultaneously. Furthermore, "simultaneous" is not limited to complete simultaneous, but means a time that is so small that it can be regarded as substantially simultaneous. Since hydrogen is continuously permeated through the heating element 5 by simultaneously storing and releasing hydrogen, excess heat can be efficiently generated from the heating element 5 .

＜Manufacturing method of heating element＞ Here, an example of the manufacturing method of the heating element 5 is demonstrated.

The heating element 5 is manufactured by preparing the plate-shaped support 5A, and using a vapor deposition device to make the hydrogen-absorbing metal or the hydrogen-absorbing alloy that will become the first layer 51 or the second layer 52 into a gas phase. state, the gas-phase hydrogen-absorbing metal or hydrogen-absorbing alloy is attached to the surface of the support 5A to alternately form the films of the first layer 51 and the second layer 52 . In this case, it is preferable to continuously form the films of the first layer 51 and the second layer 52 in a vacuum state. In this way, only the interface 53 of the different substance is formed between the first layer 51 and the second layer 52. without forming a natural oxide film. As the support body 5A, for example, a Ni plate is used.

As the vapor deposition device, a physical vapor deposition device that vapor-deposits a hydrogen-absorbing metal or a hydrogen-absorbing alloy on the surface of the support 5A by a physical method, or vapor-deposits a hydrogen-absorbing metal or a hydrogen-absorbing alloy on a support by a chemical method is used. 5A surface chemical vapor deposition equipment, etc. As the physical vapor deposition device, a sputtering device, a vacuum vapor deposition device, or the like is used. As the chemical vapor deposition device, an ALD (Atomic Layer Deposition, atomic layer deposition) device or the like is used. In addition, the films of the first layer 51 and the second layer 52 may be alternately formed on the surface of the support 5A by a melt blowing method, a spin coating method, a spray coating method, a dipping method, a plating method, or the like.

As shown in FIG. 8 , the heat generating body 5 of this embodiment constitutes a multilayer film 5B by alternately laminating first layers 51 and second layers 52 on a support 5A, but the configuration of the heat generating body 5 is not limited thereto. Here, modification 1 and modification 2 of the configuration of the heating element 5 will be described based on FIG. 10 and FIG. 11 , respectively. 10 is a cross-sectional view showing the structure of the heating element 60 of the first modification, and FIG. 11 is a cross-sectional view showing the structure of the heating element 70 of the second modification.

<Modification 1 of heating element> As shown in FIG. 10 , the heat generating body 60 has a support body 60A and a multilayer film 60B. Here, the structure of the support body 60A is the same as the structure of the support body 5A of the heating element 5 shown in FIG. 8 , and thus the description of the support body 60A is omitted.

The multilayer film 60B is formed on the support 60A. The multilayer film 60B has, in addition to the first layer 61 and the second layer 62 , a third layer 63 which is different from the first layer 61 and the second layer 62 and includes a hydrogen-absorbing metal, a hydrogen-absorbing alloy, or ceramics. The composition of the first layer 61 is the same as that of the first layer 51 of the heating element 5 shown in FIG. Description of layer 62.

A heterogeneous substance interface 64 is formed between the first layer 61 and the second layer 62 . Furthermore, a heterogeneous substance interface 65 is formed between the first layer 61 and the third layer 63 . The heterogeneous substance interface 64 and the heterogeneous substance interface 65 transmit hydrogen similarly to the heterogeneous substance interface 53 of the heating element 5 . In the heating element 60 , excess heat is generated by hydrogen permeating through the heterogeneous substance interface 64 and the heterogeneous substance interface 65 , or by hydrogen diffusing through the heterogeneous substance interface 64 and the heterogeneous substance interface 65 .

The multilayer film 60B is formed on the support body 60A in the form of a multilayer film structure in which the first layer 61 is provided between the second layer 62 and the third layer 63 . In the example shown in FIG. 10 , the multilayer film 60B is alternately laminated with the first layer 61 , the second layer 62 , the first layer 61 , and the third layer 63 sequentially on one surface of the support 60A (the upper end surface in FIG. 10 ). The multilayer film 60B can also be formed into a film structure different from the example shown in FIG. The film structure of the layer 61 and the second layer 62. The multilayer film 60B is not limited to being formed on one side of the support 60A (upper end in FIG. 10 ), but may also be formed on the other side of the support 60A (lower end in FIG. 10 ) or both sides of the support 60A (the upper end of FIG. 10 ). upper end and lower end). In addition, the number of the 1st layer 61, the 2nd layer 62, and the 3rd layer 63 is arbitrary. As the multilayer film 60B, it is only necessary to have one or more third layers 63 .

Here, the third layer 63 contains Ni, Pd, Cu, Cr, Fe, Mg, Co, or alloys thereof, or any of SiC, CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO. The alloy constituting the third layer 63 preferably contains two or more of Ni, Pd, Cu, Cr, Fe, Mg, and Co. In addition, as the alloy constituting the third layer 63, Ni, Pd, Cu, Cr, Fe, Mg, Co may be used in which additional elements are added.

It is particularly preferable that the third layer 63 contains any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO. In the heating element 60 having the third layer 63 containing any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO, the amount of hydrogen absorbed increases, and the amount of hydrogen passing through the interface 64 of the different material and the interface 65 of the different material As the amount of hydrogen increases, the excess heat generated by the heat generating element 60 increases to achieve higher output.

The thickness of the third layer is preferably less than 1000 nm. If the thickness of the third layer 63 is less than 1000 nm, the third layer 63 can maintain a nanostructure that does not exhibit bulk characteristics. In particular, the thickness of the third layer 63 containing any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO is preferably 10 nm or less. When the thickness of the third layer 63 is 10 nm or less, the multilayer film 60B can easily transmit hydrogen.

The complete thickness of the third layer 63 containing any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO is preferably 10 nm or less. Thereby, the multilayer film 60B can also be formed in an island-distributed shape instead of being formed in a complete film shape. In addition, the first layer 61 and the third layer 63 are preferably formed continuously in a vacuum state. In this way, only the heterogeneous substance interface 65 is formed between the first layer 61 and the third layer 63 without forming a natural oxide film.

Regarding the combination of the first layer 61, the second layer 62, and the third layer 63, if the type of element is expressed as "the first layer-the third layer-the second layer", it is ideal to be Pd-CaO-Ni, Pd -Y ₂ O ₃ -Ni, Pd-TiC-Ni, Pd-LaB ₆ -Ni, Ni-CaO-Cu, Ni-Y ₂ O ₃ -Cu, Ni-TiC-Cu, Ni-LaB ₆ -Cu, Ni -Co-Cu, Ni-CaO-Cr, Ni-Y ₂ O ₃ -Cr, Ni-TiC-Cr, Ni-LaB ₆ -Cr, Ni-CaO-Fe, Ni-Y ₂ O ₃ -Fe, Ni- TiC-Fe, Ni-LaB ₆ -Fe, Ni-Cr-Fe, Ni-CaO-Mg, Ni-Y ₂ O ₃ -Mg, Ni-TiC-Mg, Ni-LaB ₆ -Mg, Ni-CaO-Co , Ni-Y ₂ O ₃ -Co, Ni-TiC-Co, Ni-LaB ₆ -Co, Ni-CaO-SiC, Ni-Y ₂ O ₃ -SiC, Ni-TiC-SiC, Ni-LaB ₆ -SiC either of them.

<Variation 2 of heating element> As shown in Figure 11, the multilayer film 70B of the heating element 70 of this modification has a support body 70A and a multilayer film 70B, and the composition of the support body 70A is the same as that of the support body 5A of the heating element 5 shown in Figure 8, so it is omitted. Description of the support 70A.

The multilayer film 70B is formed on the support 70A, and in addition to the first layer 71, the second layer 72, and the third layer 73, it also has a hydrogen storage layer different from the first layer 71, the second layer 72, and the third layer 73. A fourth layer 74 of metal, hydrogen storage alloy or ceramic. The composition of the first layer 71, the second layer 72 and the third layer 73 is the same as that of the first layer 61, the second layer 62 and the third layer 63 of the heating element 60 shown in FIG. Description of the first layer 71, the second layer 72 and the third layer 73.

A heterogeneous substance interface 75 is formed between the first layer 71 and the second layer 72 , and a heterogeneous substance interface 76 is formed between the first layer 71 and the third layer 73 . In addition, a dissimilar substance interface 77 is formed between the first layer 71 and the fourth layer 74 . These heterogeneous substance interfaces 75 , 76 , and 77 allow hydrogen to permeate similarly to the heterogeneous substance interface 53 of the heating element 5 . In the heating element 70 , excess heat is generated by hydrogen permeating through the interfaces 75 , 76 , and 77 of different substances by quantum diffusion, or by hydrogen diffusing at the interfaces 75 , 76 , and 77 of different substances.

In FIG. 11 , a first layer 71 , a second layer 72 , a first layer 71 , a third layer 73 , a first layer 71 , and a fourth layer 74 are sequentially laminated on the surface of a support 70A. Furthermore, the first layer 71, the fourth layer 74, the first layer 71, the third layer 73, the first layer 71, and the second layer 72 may be sequentially laminated on the surface of the support 70A. That is, the multilayer film 70B is formed by stacking the second layer 72, the third layer 73, and the fourth layer 74 in any order, and the first layer is provided between each of the second layer 72, the third layer 73, and the fourth layer 74. Laminated structure of layer 71. Here, the inter-substance interface 75 formed between the first layer 71 and the fourth layer 74 allows hydrogen atoms to pass through. In addition, the multilayer film 70B only needs to have one or more fourth layers 74 .

In other words, the fourth layer 74 contains Ni, Pd, Cu, Cr, Fe, Mg, Co, or alloys thereof, or any of SiC, CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO. Here, the alloy constituting the fourth layer 74 preferably contains two or more of Ni, Pd, Cu, Cr, Fe, Mg, and Co. In addition, as the alloy constituting the fourth layer 74, Ni, Pd, Cu, Cr, Fe, Mg, and Co to which additional elements are added may be used.

It is particularly preferable that the fourth layer 74 contains any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO. Here, in the heating element 70 having the fourth layer 74 containing any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO, the storage amount of hydrogen is increased, and the inter-substance interfaces 75 and 76 are transmitted. The amount of hydrogen in , 77 increases, so the high output of excess heat generated by the heating element 70 is sought.

The thickness of the fourth layer 74 is preferably less than 1000 nm. If the thickness of the fourth layer 74 is less than 1000 nm, the fourth layer 74 can maintain a nanostructure that does not exhibit bulk characteristics. In particular, the fourth layer 74 containing any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO is preferably 10 nm or less in order to allow hydrogen atoms to pass through. When the thickness of the fourth layer 74 is 10 nm or less, the multilayer film 70B can easily transmit hydrogen.

Also, the fourth layer 74 containing any one of CaO, Y ₂ O ₃ , TiC, LaB ₆ , SrO, and BaO may be formed in an island-distributed shape instead of being formed in a film with a full thickness. Furthermore, it is desirable that the first layer 71 and the fourth layer 74 be continuously formed in a vacuum state. In this way, only the heterogeneous substance interface 75 is formed between the first layer 71 and the fourth layer 74 without forming a natural oxide film. .

Regarding the combination of the first layer 71, the second layer 72, the third layer 73, and the fourth layer 74, it is ideal if the type of elements is expressed as "the first layer - the fourth layer - the third layer - the second layer". It is a combination of Ni-CaO-Cr-Fe, Ni-Y ₂ O ₃ -Cr-Fe, Ni-TiC-Cr-Fe, Ni-LaB ₆ -Cr-Fe. Furthermore, the composition of the multilayer film 70B, such as the ratio of the thickness of each layer, the number of each layer, and the material can be appropriately set arbitrarily according to the heating temperature.

(Function of heating device) Next, the operation of the heat generating device 1 configured as described above will be described.

When the circulation pump 14 is driven by the control signal from the control unit 2, the hydrogen (hydrogen-based gas) ejected from the circulation pump 14 passes through the introduction pipe 12 of the hydrogen supply line L1 and the four branch pipes branched from the introduction pipe 12. 15 is introduced into each first flow path 6 formed in each laminated structure 4 of the heating module M. Furthermore, while hydrogen (hydrogen-based gas) flows through the introduction pipe 12, pressure fluctuations are suppressed by the buffer tank 17, and the pressure is reduced to a specific value by the pressure regulating valve 18.

Moreover, the electric heater 9 installed in the heating module M generates heat by the power supplied from the power source 10, and heats the heating element 5 to a specific temperature (for example, 50° C. to 1500° C.) through the hydrogen in the first flow path 6 . Furthermore, as described above, the temperature of the heating element 5 is adjusted to an appropriate value by controlling the output of the power supply 10 by the control unit 2 based on the temperature detected by the temperature sensor 11 . Here, since the electric heater 9 is interposed between the two laminated structures 4 in the heating module M, specifically, it is interposed between the facing first flow paths 6 of the two laminated structures 4 , so the heat of the electric heater 9 will not dissipate to the surroundings due to the heat dissipation from the airtight container 3. Therefore, the heating element 5 is efficiently heated to an appropriate temperature, and its power consumption is kept low.

In other words, the hydrogen introduced into each first channel 6 of the heating module M flows into the second channel 7 through the heating element 5 as described above, and the heating element 5 is heated by the hydrogen passing through the heating element 5 . The mechanism of the heat generation of the heating element 5 has been described above (refer to FIG. 9 ), but on one side (front side) of each heating element 5, hydrogen molecules are adsorbed, and the hydrogen molecules are dissociated into two hydrogen atoms, and the hydrogen atoms obtained by the dissociation Infiltrate into the inside of the heating element 5. That is, hydrogen is stored in the heating element 5 , and hydrogen atoms diffuse through the inside of the heating element 5 . Moreover, on the other side (back surface) of the heating element 5, the hydrogen atoms of the heating element 5 are bonded again to become hydrogen molecules and released. That is, hydrogen is released from the heating element 5 . Then, the heating element 5 generates heat by absorbing hydrogen, and also generates heat by releasing hydrogen.

As described above, the hydrogen (permeated hydrogen) that passes through (passes through) each heating element 5 of the heating element 5 flows out to each branch pipe 16, merges in the recovery pipe 13, and is then sucked to Circulation pump 14 for recovery. Hereinafter, the same operation is repeated, hydrogen circulates in the hydrogen circulation line L1, and is used to generate heat for each heating element 5 of the heating module M during this process. In this way, in this embodiment, hydrogen is continuously circulated in the hydrogen circulation line L1 forming a closed loop, so it is not necessary to supply hydrogen, which is more economical. In addition, since the supercooling of each heating element 5 is prevented by the high-temperature hydrogen passing through the heating element 5 (transmitted hydrogen), the heating of each heating element 5 is promoted.

In other words, as shown in FIG. 1, the first flow path 6 into which hydrogen is introduced is connected to the discharge side of the circulation pump 14 through the branch pipe 15 and the introduction pipe 12, and the second flow path 7 through which hydrogen flows in is passed through the branch pipe 16 and recovered. The pipe 13 is connected to the suction side of the circulation pump 14 , so the pressure of the first flow path 6 is higher than the pressure of the second flow path 7 , so a differential pressure is generated between the first flow path 6 and the second flow path 7 .

Moreover, the heating element 5 is very thin, so it is easily deformed. As mentioned above, the differential pressure between the first flow path 6 and the second flow path 7 will cause the heating element 5 to flow toward the second flow with a lower pressure as shown in FIG. 12 . The road 7 side (upper side in FIG. 12 ) bulges and deforms into an arc-shaped curved surface (refer to FIG. 16 ).

In the heating device 1 of this embodiment, as shown in FIGS. 5 and 6 , a plurality of brackets 25 protrude toward the heating element 5 on the surface of the first partition wall 24 facing the heating element 5 , so as shown in FIG. 12 It is schematically shown that the deflected heating element 5 is in contact with the bracket 25 and is supported by the bracket 25 . Therefore, further deformation of the heating element 5 is prevented, and the deflection deformation of the heating element 5 is suppressed to be small by the bracket 25 . That is, the maximum deflection amount of the heating element 5 is suppressed to δ (gap). As a result, the peeling of the multilayer film 5B from the support body 5A (referring to FIG. 8 ) is prevented due to the deformation of the heating element 5, the durability of the heating element 5 is improved, and the heat generation of the heating element 5 is not affected by the deformation. Obstacles, the heating element 5 can stably perform heat generation, so higher heat generation efficiency and heat exchange efficiency are obtained.

In addition, in the heating device 1 of the present embodiment, in each of the laminated structures 4 constituting the heating module M, since the third flow path 8 and the second flow path 7 are arranged adjacent to each other, the flow through the third flow path The heat medium of 8 is efficiently heated by heat exchange with the permeated hydrogen (permeated gas) flowing through the second channel 7 . That is, the second flow path 7 and the third flow path 8 function as a heat exchanger, and the heat generated in the heating element 5 is efficiently recovered to the heat medium through permeated hydrogen (permeated gas). Furthermore, part of the heat generated in the heating element 5 is transmitted from permeated hydrogen (permeated gas) through the first partition wall 24 to the plurality of radiating members 27, and the heat medium is efficiently heated by heat dissipation from these radiating members 27. . That is, the plurality of radiating members 27 makes the heat transfer area of the first partition wall 24 larger, so the heat exchange efficiency between the heating element 5 and permeated hydrogen (permeated gas) is improved, and the heat medium can be efficiently recovered in the heating element 5 heat generated.

Furthermore, a part of the heat generated in the heating element 5 is in contact with the heating element 5, and is conducted to the first partition wall 24 through the bracket 25 supporting it. Therefore, the heat generated in the heating element 5 is more effectively recovered by using the heat medium.

(Calculation results of heat transfer and its consideration) Here, the temperature and heat transfer (radiation heat, conduction heat, and the like) of the first partition wall 24 and the second partition wall 26 are calculated for the case where the bracket 25 is not provided and the case where the bracket 25 arranged in a lattice shape is provided. total), the results are shown in Table 1. Also, the physical property data of nickel used for the bracket 25 and the heat dissipation member 27, and the physical property data of the stainless steel (SUS) used for the first partition wall 24 and the second partition wall 26 are shown in Table 2 and Table 3, respectively. Calculation of temperature and heat transfer with other physical data. Furthermore, as the bracket 25, the board is configured into a lattice as shown in FIG. , Example 1, Example 2, Example 3. Furthermore, the height of the bracket 25 is set to 1 mm, and the thickness is set to 0.1 mm.

In Example 0 shown in Table 1, there is no bracket. In Example 1, the number of brackets 25 is 2, the number of grid divisions is 4, and the division size of the grid is 10.5 mm. In Example 2, the number of brackets 25 is 6. The number of divisions of the grid is 16, and the division size of the grid is 5.25 mm. In Example 3, the number of brackets 25 is 14, the number of divisions of the grid is 64, and the division size of the grid is 2.625 mm.

[Table 1] example Lattice bracket Division size [mm] Number of brackets Partition wall temperature [°C] heat transfer [W] No. 1 (hydrogen flow path) 2nd (heat exchanger) radiation Conduction Σ 0 none twenty one 0 836.9 768.4 1.809 0.000 1.18 1 4 divisions 10.5 2 885.3 870.4 0.448 4.075 4.523 2 16 divisions 5.25 6 894.2 888.5 0.178 4.816 4.994 3 64 split 2.625 14 897.4 894.8 0.081 5.082 5.163

[Table 2] NO project data 1 density 8900 kg/ ^m3 2 Thermal conductivity 66.1 W/m･℃ 3 specific heat 4.400E+02 J/kg･℃ 4 Emissivity 0.3 [-]

[table 3] NO project material 1 density 7980 kg/ ^m3 2 Thermal conductivity 16 W/m･℃ 3 specific heat 5.020E+02 J/kg･℃ 4 Emissivity 0.35 [-]

From the results shown in Table 1, it can be seen that the more the number of brackets 25 is, the greater the amount of heat transmitted to the first partition wall 24 and the second partition wall 26 is. It can be seen that, for example, the temperature of the second partition wall 26 in the case of Example 0 without a bracket is 768.4°C. On the other hand, in Example 3 in which the number of brackets 25 is 14 (64 divisions), the temperature of the second partition wall 26 is It was 894.8°C, which was 120° higher than that of Example 0 without a stent.

Also, the heat medium returned to the heating module M from the fourth pipe 31d of the heat medium circulation line L2 of the following heat utilization system (refer to FIG. The flow paths 8 exchange heat with the high-temperature permeated hydrogen flowing through the two second flow paths 7 disposed on both sides of the third flow paths 8 while flowing through the third flow paths 8. is heated. That is, the heat medium absorbs heat from the high-temperature permeated gas flowing through the second channel 7 to be heated, and sends the heat to the heat utilization device 30 (see FIG. 14 ) as a heat source for the heat utilization device 30 . In this case, the heat medium flowing through the third flow path 8 is effectively heated by the permeated gas flowing through the two second flow paths 7 arranged on both sides of the third flow path 8, so the heat medium Increased heat recovery efficiency. Therefore, the heating module M also functions as a heat exchanger, and the heating device 1 provided with the heating module M has an integrated form of heat generation and heat exchange.

That is, the heat medium heated by heat exchange with the permeated gas in the process of flowing through each third flow path 8 of the heating module M joins the first pipe 31a through the branch pipe 31f from each third flow path 8 , is supplied to the heat utilization device 30 through the first pipe 31a, and the heat utilization device 30 uses the heat supplied from the heating medium to perform necessary operations such as power generation. Then, the heat medium whose temperature is lowered by supplying heat to the heat utilization device 30 returns to the heating module M through the fourth pipe 31d and the branch pipe 31e, and is heated again in the heating module M. After that, the same action is continuously repeated to continuously drive the heat utilization device 30 .

As described above, the heat generating device 1 of the present embodiment is provided with: a laminated structure 4 that receives and passes through the heat generating body 5 sequentially from the third flow path 8 on both sides of the third flow path 8 through which the heating medium flows. The second flow path 7 of the hydrogen (through hydrogen), the heating element 5, and the first flow path 6 for introducing hydrogen to the heating element 5 are symmetrically laminated to form; and the electric heater 9, which heats the heating element 5; and The laminated structure 4 is constructed by laminating the heat generating body 5, the first flow path 6, the second flow path 7, and the third flow path 8 at high density. Therefore, the laminated structure 4 can efficiently generate heat and simultaneously achieve a laminated structure. The structure 4 and the heat generating device 1 including it are small and simplified.

Also, in the laminated structure 4, the heat generated by the heating element 5 is generated by the heat medium flowing through the third flow path 8 and the hydrogen flowing through the second flow paths 7 disposed on both sides of the third flow path 8 (through The heat exchange of gas) is efficiently provided to the heat medium, so the heat generated in the heating element 5 can be efficiently recovered by the heat medium.

Furthermore, in this embodiment, two laminated structures 4 are stacked in two stages to form the heating module M, but three or more laminated structures 4 can be stacked in three or more stages to form a multi-stage heat generating module. In this way, the module M can generate heat more efficiently and achieve higher output.

The heating device 1 may also be configured to recover the hydrogen that has not passed through the heating element 5 (also referred to as "non-permeable hydrogen") among the hydrogen introduced into each first flow channel 6 by using a non-permeable hydrogen recovery line not shown in the figure, so that It returns to the upstream side (low pressure side) of the circulation pump 14 of the recovery pipe 13, and is reintroduced from the introduction pipe 12 and the branch pipe 15 to each first flow path 6 for each heating element 5 to generate heat.

In addition, as shown in FIG. 5, when the heating device 1 is not in operation, the front ends of the plurality of brackets 25 protruding from the first partition wall 24 do not contact the heating element 5, and a gap δ as shown in the figure is formed between the two. 12, the heating element 5 bends in a manner that bulges upward in the figure as shown in FIG. 12 when the heating device 1 operates. In contrast, when the heating device 1 is not in motion, when the front ends of a plurality of brackets 25 are in contact with the heating element 5 as shown in FIG. 7, as shown in FIG. Bending and deforming in a way that bulges upward. In this case, the amount of deflection and deformation between the brackets 25 of the heating element 5 is suppressed smaller than that of the situation shown in FIG. 12 , so the stress acting on the heating element 5 is suppressed Smaller, prevents the heating element 5 from being plastically deformed, and improves its durability. Moreover, since the front ends of all the brackets 25 are in contact with the heating element 5, heat conduction to the first partition wall 24 side through the brackets 25 is promoted.

Here, when the bracket 25 includes a grid-shaped metal plate as shown in Figure 6, that is, it is estimated that the heating element 5 made of nickel is divided by the grid-shaped bracket 25 (the surrounding area is limited by the metal plate) part) of the maximum stress. In estimation, when the grid spacing of the metal plate constituting the bracket 25 is set to 10 mm, the thickness is set to 0.1 mm, and the pressure acting on the heating element 5 is set to 100 KPa, each division acting on the heating element 5 The maximum stress of the part is 287 MPa.

In addition, the strength (tensile strength and yield strength) of nickel, which is a material of the heating element 5, is temperature-dependent. For example, the yield stress at a temperature of 900° C. is about 16 MPa. Therefore, the maximum stress of 287 MPa acting on each divided part of the heating element 5 exceeds the yield stress of 16 MPa of nickel at a temperature of 900°C, and the heating element 5 may undergo plastic deformation.

Therefore, in order to prevent the occurrence of the above-mentioned plastic deformation, it is necessary to estimate the safety factor, such as reducing the stress to 12 MPa below 3/4 of the yield stress of 16 MPa (1/24 of the maximum stress of 287 MPa). Therefore, in order to suppress the maximum stress acting on each lattice portion of the heating element 5 to below 12 MPa, it is necessary to set the interval a between the brackets 25 (the interval between the lattices of the heating element 5 ) to 10 mm/√24=1.8 mm or less.

In other words, when the thickness t of the heating element 5 and the pressure p acting on each lattice portion are fixed, the maximum stress acting on each lattice portion of the heating element 5 is proportional to the square of the interval (lattice interval) a between the brackets 25 . Also, the lower the operating temperature of the heating element 5 is, the greater the yield stress will be, so the interval a between the brackets 25 can be increased. Also, when the pressure difference acting on the heating element 5 is small, the stress acting on the heating element 5 is proportional to it and will also become smaller, so the interval a between the brackets 25 can still be increased.

When the above relationship is represented by an approximate formula with the temperature as T, the interval a between the brackets 25 ideally satisfies a<0.866t{(177-0.183T)/(0.287p)} ^0.5 .

[Heat Utilization System] Next, a heat utilization system for utilizing the heat generated in the heat generating device 1 of the present invention will be described below based on FIG. 12 .

The heat utilization system shown in FIG. 12 includes the above-mentioned heat generating device 1 and heat utilization device 30 of the present invention. Here, the heat utilization device 30 is a device that uses the heat medium heated by the heat generated in the heat generating device 1 as a heat source to generate electricity, and includes a heat medium circulation line L2, a gas turbine 32, a steam generator 33, a steam turbine 34, and a steam generator. Trane engine 35 and thermoelectric exchange unit 36 . Hereinafter, the heat medium circulation line L2, the gas turbine 32, the steam generator 33, the steam turbine 34, the Stirling engine 35, and the heat-electric exchange unit 36 will be described respectively.

(heat medium circulation line) The heat medium circulation line L2 constitutes a closed loop that circulates the heat medium between the heating module M of the heating device 1 , the gas turbine 32 , the steam generator 33 , the steam turbine 34 , the Stirling engine 35 and the thermoelectric exchange unit 36 . Specifically, the heat medium circulation line L2 includes a first pipe 31a extending from the outlet side of the third flow path 8 of the heating module M and connected to the gas turbine 32, and connecting the gas turbine 32 and the steam generator 33. The second pipe 31b of the steam generator 33 and the third pipe 31c connected to the Stirling engine 35, and the third pipe 31c extending from the Stirling engine 35 and connected to the inlet side of the third flow path 8 of the heating module M 4 piping 31d. Here, a circulation pump 37 and a flow rate control valve 38 are provided in the middle of the first piping 31a. In addition, metal telescopic pump etc. are used for the circulation pump 37, and the variable leak valve etc. are used for the flow control valve 38.

(gas turbine) The gas turbine 32 includes a compressor 32a and a turbine 32b coaxially connected, and an electric generator 40 is connected to an output shaft of the turbine 32b.

(steam generator) The steam generator 33 generates high-pressure steam for driving the steam turbine 34, and includes an internal pipe 33a connected to the second pipe 31b, and a heat exchange pipe 33b facing the internal pipe 33a. Here, the heat exchange pipe 33b is connected to the inlet side of the steam turbine 34 through the steam pipe 33c, and is connected to the outlet side of the steam turbine 34 through the water supply pipe 33d. In addition, although not shown in figure, the condenser and the water supply pump are installed in the water supply pipe 33d. Also, a generator 50 is connected to an output shaft of the steam turbine 34 .

(Stirling engine) The Stirling engine 35 includes a cylinder 35a, a drive piston 35b, a power piston 35c, a flow path 35d, and a crank portion 35e. Here, the inside of the cylinder 35a is divided into an expansion space S1 and a compression space S2 by the purge piston 35b, and a working fluid is sealed in the expansion space S1 and the compression space S2. In addition, helium gas, hydrogen-based gas, air, etc. are used as a working fluid, and helium gas is used in this embodiment.

Moreover, the flow path 35d is provided outside the cylinder 35a, and connects the expansion space S1 and the compression space S2. Furthermore, the flow path 35d functions to allow the working fluid to flow between the expansion space S1 and the compression space S2, and includes a high-temperature portion 35f, a low-temperature portion 35g, and a regenerator 35h. The working fluid in the expansion space S1 passes through the high temperature part 35f, the regenerator 35h, and the low temperature part 35g in order and flows into the compression space S2. Furthermore, the working fluid in the compression space S2 flows into the expansion space S1 through the low temperature part 35g, the regenerator 35h, and the high temperature part 35f in sequence.

The high temperature part 35f is a heat exchanger for heating the working fluid, and a heat transfer tube 35i is arranged outside the high temperature part 35f. This heat transfer pipe 35i connects the 3rd pipe 31c and 31 d of 4th pipes, and performs the function of making a heat medium flow from the 3rd pipe 31c to 31 d of 4th pipes. Furthermore, when the heat medium flows from the third pipe 31c to the heat transfer pipe 35i, the heat of the heat medium is transferred to the high temperature portion 35f, thereby heating the working fluid passing through the high temperature portion 35f.

The low temperature part 35g is a heat exchanger for cooling the working fluid, and a cooling pipe 35j is provided outside the low temperature part 35g. The cooling pipe 35j is connected to a refrigerant supply part (not shown) that supplies a refrigerant such as water, and passes the refrigerant supplied from the refrigerant supply part. Furthermore, as the refrigerant flows to the cooling pipe 35j, the working fluid passing through the low-temperature portion 35g is deprived of heat by the refrigerant to be cooled.

The regenerator 35h is a heat exchanger for heat storage, and is provided between the high temperature part 35f and the low temperature part 35g. The regenerator 35h receives heat from the working fluid passing through the high temperature portion 35f and stores it when the working fluid moves from the expansion space S1 to the compression space S2. Also, the regenerator 35h heats the working fluid by providing the stored heat to the working fluid passing through the low-temperature portion 35g when the working fluid moves from the compression space S2 to the expansion space S1.

The crankshaft portion 35e is provided at the other end of the cylinder 35a, and includes a crankshaft rotatably supported by a crankcase not shown, a rod connected to the gas-purging piston 35b, a rod connected to the power piston 35c, and a rod for connecting the rods to the crankshaft. Connecting components, etc., and play the function of converting the reciprocating linear motion of the purge piston 35b and the power piston 35c into rotary motion. Furthermore, a generator 80 is connected to the crankshaft of the Stirling engine 35 .

(Heat and Power Exchange Unit) The thermoelectric exchange unit 36 converts the heat of the heating medium flowing through the fourth pipe 31d into electricity by using the Seebeck effect, for example, converts the heat of the heating medium below 300°C into electricity. This thermoelectric exchange part 36 is formed in a cylindrical shape, and is arrange|positioned so that it may cover the outer periphery of 31 d of 4th pipes.

Furthermore, the thermoelectric exchange unit 36 includes a thermoelectric exchange module 36a provided on the inner surface and a cooling unit 36b provided on the outer surface. Here, the thermoelectric exchange module 36a includes a heat-receiving substrate facing the fourth pipe 31d, a heat-receiving-side electrode provided on the heat-receiving substrate, a heat-radiating substrate facing the cooling portion 36b, a heat-radiating-side electrode provided on the heat-radiating substrate, A p-type thermoelectric element formed of a p-type semiconductor, an n-type thermoelectric element formed of an n-type semiconductor, etc. In this embodiment, the thermoelectric exchange module 36a is arranged alternately with p-type thermoelectric elements and n-type thermoelectric elements, and the adjacent p-type thermoelectric elements and n-type thermoelectric elements are electrically connected by heat-receiving-side electrodes and heat-dissipating-side electrodes.

Moreover, in the thermoelectric exchange module 36a, the wires are electrically connected to the p-type thermoelectric element arranged at one end and the n-type thermoelectric element arranged at the other end through the heat dissipation side electrode. Here, the cooling unit 36b includes, for example, pipes through which cooling water flows, and the thermoelectric exchange unit 36 generates electric power corresponding to the temperature difference generated between the inner surface and the outer surface.

(The role of heat utilization system) Next, the action of the heat utilization system configured as described above will be described.

In the heat generating device 1 of the present invention, as described above, the heat generated by hydrogen passing through the heat generating elements 5 of the heat generating module M is supplied to the heat medium flowing through the third flow path 8 to heat the heat medium. to a specific temperature. Therefore, when the circulation pump 37 installed in the first pipe 31a of the heat utilization device 30 is driven, the heated heat medium flows through the third flow path 8, the first pipe 31a, and the second pipe 31b of the heating module M forming a closed loop. , the third pipe 31c, and the fourth pipe 31d, the gas turbine 32, the steam turbine 34, the Stirling engine 35, and the thermoelectric exchange unit 36 receive the heat supply from the heat medium, and are sequentially driven to perform the required power generation. Furthermore, at this time, the flow rate control valve 38 controls the flow rate of the heat medium based on the temperature detected by the temperature sensor 11 . That is, when the temperature of the heating element 5 detected by the temperature sensor 11 (see FIG. 1 ) exceeds an appropriate upper limit temperature, the flow control valve 38 increases the circulating flow rate of the heating medium to suppress the temperature rise of the heating element 5 . On the contrary, when the temperature of the heating element 5 detected by the temperature sensor 11 does not reach the appropriate lower limit temperature, the flow control valve 38 reduces the circulating flow rate of the heat medium to suppress the temperature drop of the heating element 5 .

The high-temperature (for example, 600° C. to 1500° C.) heat medium heated by the heat-generating module M of the heat-generating device 1 and flowing from the third channel 8 to the first pipe 31 a is introduced into the gas turbine 32 . 32 compressor 32a and compression. Then, the compressed heat medium flows through the turbine 32b while expanding, thereby rotationally driving the turbine 32b, thereby rotationally driving the generator 40 connected to the output shaft of the turbine 32b to perform required power generation. That is, part of the heat of the heat medium is converted into kinetic energy of the gas turbine 32 , and the kinetic energy is converted into electrical energy by the generator 40 .

In addition, the heat medium discharged from the gas turbine 32 to the second pipe 31b exchanges heat with the boiler water flowing through the heat exchange pipe 33b while flowing through the internal pipe 33a of the steam generator 33 to heat the boiler water. . As a result, high-temperature (300° C. to 700° C.) and high-pressure steam is generated in the steam generator 33 , and the steam is supplied to the steam turbine 34 through the steam pipe 33 c. As a result, the steam turbine 34 is rotationally driven by the steam, and the generator 50 is simultaneously rotationally driven by the rotation of the steam turbine 34 to perform required power generation. That is, part of the heat of the heat medium is converted into kinetic energy of the steam turbine 34 , and the kinetic energy is converted into electrical energy by the generator 50 . Furthermore, the steam that is used to drive the steam turbine 34 and whose temperature has dropped is cooled in a condenser not shown and returned to the boiler water. The boiler water flows from the water supply pipe 33d to the heat exchange pipe 33b of the steam generator 33. During this process, In this process, boiler water is heated by the hot refrigerant flowing through the internal pipe 33a to become steam.

In addition, the heat medium for generating steam at a temperature of 300° C. to 1,000° C. is supplied to the Stirling engine 35 from the internal pipe 33 a through the third pipe 31 c while flowing through the internal pipe 33 a of the steam generator 33 . Function for driving the Stirling engine 35 . As a result, the crankshaft of the Stirling engine 35 is rotationally driven, so that the generator 80 connected to the crankshaft is also rotationally driven to perform required power generation. That is, part of the heat of the heat medium is converted into kinetic energy of the Stirling engine 35 , and the kinetic energy is converted into electrical energy by the generator 80 .

The heat medium for driving the Stirling engine 35 is supplied to the thermoelectric exchange unit 36 through the fourth pipe 31d as described above, and part of the heat of the heat medium is converted into electric power by the Seebeck effect as described above. That is, part of the heat of the heat medium is converted into electric energy by the thermoelectric exchange unit 36 .

Then, the heat medium used for power generation in the thermoelectric exchange unit 36 and whose temperature has dropped returns from the fourth pipe 31d to the inlet side of the third flow path 8 of the heating module M, and then the same action is continuously repeated, and the heat medium is recovered. The heat generated in the heating module M is converted into electrical energy.

Furthermore, in this embodiment, the following configuration is adopted: the gas turbine 32, the steam turbine 34, and the Stirling engine 35 are driven by using the heat recovered from the heat medium, and the kinetic energy is converted by the generators 40, 50, 80 The heat energy is directly converted into electric energy by using the thermoelectric exchange part 36, but the heat utilization device 30 can also be composed of a gas turbine 32, a steam turbine 34, a Stirling engine 35 and a thermoelectric exchange part 36 in any combination.

Also, in the above embodiments, the heat utilization device 30 that converts heat energy into electric energy has been described, and the heat generated by the heat generating device 1 of the present invention can be used for purposes other than power generation, such as combustion air supplied to a boiler Preheating, heating of absorption liquid for absorbing _CO2 by chemical absorption method, heating of raw material gas containing _CO2 and _H2 in methane production equipment, etc., as well as heat pump system, heat transport system, cooling and heating (refrigeration) system wait.

In addition, in the heat utilization system described above, the heat generated in the heating device 1 is recovered by using the heat medium flowing through the third flow path 8 and supplied to the heat utilization device 30, but the third flow path 8 may not be provided. Heat recovery is performed by directly utilizing the permeated gas flowing through the second flow path 7 . In this case, the second partition wall 26 and the heat dissipation member 27 are unnecessary, and the first partition wall 24 and the bracket 25 function as heat dissipation members, so the heat transfer area increases and the heat recovery efficiency improves. When adopting such a configuration, it is desirable to introduce another heat medium into the second flow path 7, recover the permeated gas and the heat medium from the second flow path 7, and transfer the permeated gas and heat to the second flow path 7 by using a hydrogen permeable membrane or the like. The medium is separated, the permeated gas is returned to the hydrogen circulation line L1 , and the heat medium is supplied to the heat utilization device 30 .

Furthermore, the application of the present invention is not limited to the embodiments described above, and of course various changes can be made within the scope of the claims and the technical ideas described in the specification and drawings.

1: heating device 2: Control Department 3: airtight container 4: Layered structure 5: Heating body 5A: Support body 5B: Multilayer film 6: The first flow path 6a: flat part 6b: Wall 6c: Hydrogen inlet 7: The second channel 7a: flat part 7b: Wall 7c: Hydrogen recovery port 8: The third channel 8a: flat part 8b: Wall 8c: heat medium inlet 8d: heat medium recovery port 9: electric heater 9a: Base 9b: Heating wire 10: Power 11: Temperature sensor 12: Import piping 13: Recovery piping 14:Circulation pump 15: branch pipe 16: branch pipe 17: buffer tank 18: Pressure adjustment valve 19: filter 24: The first partition wall 25: Bracket 25a: hole 26: The second partition wall 27: cooling components 30: Heat utilization device 31a: 1st piping 31b: Second piping 31c: 3rd piping 31d: No. 4 piping 31e: branch pipe 31f: branch pipe 32: No. 4 piping 32a: Compressor 32b: Turbine 33:Steam generator 33a: Internal Piping 33b: Heat exchange piping 33c: Steam piping 33d: Water supply piping 34:Steam Turbine 35: Stirling engine 35a: Cylinder 35b:Purge piston 35c: Power Piston 35d: flow path 35e: crankshaft 35f: High temperature part 35g: low temperature part 35h: Regenerator 35i: heat transfer tube 35j: cooling pipe 36:Heat and electricity exchange department 36a: Thermoelectric exchange module 36b: cooling part 37:Circulation pump 38: Flow control valve 40: Generator 50: Generator 51: Layer 1 52: Layer 2 53: Heterogeneous substance interface 60: heating element 60A: Support body 60B: multilayer film 61: Layer 1 62: Layer 2 63: Layer 3 64: Heterogeneous substance interface 65: Heterogeneous substance interface 70: heating element 70A: Support body 70B: multilayer film 71: Layer 1 72: Layer 2 73: Layer 3 74: Layer 4 75: Heterogeneous substance interface 76: Heterogeneous substance interface 77: Heterogeneous substance interface 80: Generator 101: heating device 105: heating element 106: 1st channel 107: The second channel L1: Hydrogen circulation line L2: heat medium circulation line M: heating module S1: Expansion space S2: compressed space T: temperature adjustment department δ: Gap

Fig. 1 is a block diagram showing the basic structure of the heat generating device of the present invention. Fig. 2 is an exploded perspective view of the heating module of the heating device of the present invention. Fig. 3 is an exploded perspective view of the laminated structure of the heat generating device of the present invention. Fig. 4 is a top view of the electric heater of the heating device of the present invention. Fig. 5 is an enlarged detailed view of part A of Fig. 1 . Fig. 6 is a cross-sectional view of line B-B in Fig. 5 . Fig. 7 is a view similar to Fig. 5 showing another embodiment of the heat generating device of the present invention. Fig. 8 is a cross-sectional view showing the structure of the heating element of the heating device of the present invention. Fig. 9 is a schematic diagram illustrating the mechanism of excess heat generation in the heat generating body of the heat generating device of the present invention. Fig. 10 is a cross-sectional view showing Variation 1 of the configuration of the heating element. Fig. 11 is a cross-sectional view showing Variation 2 of the configuration of the heating element. Fig. 12 is a schematic sectional view illustrating deflection deformation of the heating element of the heat generating device of the present invention and a mechanism for suppressing it. Fig. 13 is a schematic cross-sectional view illustrating the deflection deformation of the heating element of the heating device according to another embodiment of the present invention and a mechanism for suppressing it. Fig. 14 is a block diagram showing the configuration of a heat utilization system provided with the heat generating device of the present invention. Fig. 15 is a cross-sectional view showing the basic configuration of a heat generating device including a flat heat generating body. Fig. 16 is a schematic cross-sectional view showing deformation of the heat generating element of the heat generating device shown in Fig. 15 .

5: Heating body

6: The first flow path

7: The second channel

8: The third channel

24: The first partition wall

25: Bracket

25a: hole

26: The second partition wall

27: cooling components

δ: Gap

Claims (4)

A heat generating device comprising a flat plate-shaped heat generating element that generates heat by absorbing and releasing hydrogen, a first channel through which a hydrogen-based gas containing the hydrogen is introduced to supply the hydrogen to the heat generating element, and a flow path for supplying the hydrogen-based gas containing the hydrogen to the heat generating element; The second channel through which the hydrogen permeating gas of the heating element flows, and It is constituted by arranging the above-mentioned first flow path and the above-mentioned second flow path on both sides of the above-mentioned heating element, respectively, A bracket for supporting the deformed heat generating body is protruded toward the heat generating body on the first partition wall forming the second flow path between the heat generating body and the first partition wall. The heating device according to claim 1, wherein the support includes a plurality of pins or plates made of metal. The heating device according to claim 1 or 2, wherein the third flow path through which the heating medium flows is arranged adjacent to the second flow path, and the second flow path forming the third flow path is between the first partition wall and the first partition wall. At least one of the partition walls or the first partition walls is provided with a heat dissipation member protruding toward the other partition wall and in contact with the other partition wall. The heating device according to claim 3, wherein the heat dissipation member includes a plurality of heat dissipation pins or fins made of metal.

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