WO2017110477A1 - Appareil de stockage de chaleur chimique - Google Patents

Appareil de stockage de chaleur chimique Download PDF

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Publication number
WO2017110477A1
WO2017110477A1 PCT/JP2016/086389 JP2016086389W WO2017110477A1 WO 2017110477 A1 WO2017110477 A1 WO 2017110477A1 JP 2016086389 W JP2016086389 W JP 2016086389W WO 2017110477 A1 WO2017110477 A1 WO 2017110477A1
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WO
WIPO (PCT)
Prior art keywords
heat storage
heat
storage material
heat exchange
fluid
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PCT/JP2016/086389
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English (en)
Japanese (ja)
Inventor
慶大 片桐
聡 針生
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株式会社豊田自動織機
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Publication of WO2017110477A1 publication Critical patent/WO2017110477A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F23/00—Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the present invention relates to a chemical heat storage device.
  • the chemical heat storage device disclosed in Patent Document 1 includes a reactor that stores therein a heat storage material that generates heat by a chemical reaction with a reaction medium and desorbs the reaction medium by endotherm, and a reservoir that stores the reaction medium.
  • the reactor includes a plurality of heat storage material storage portions in which the heat storage material is stored, a plurality of heat exchange units that perform heat exchange between a fluid to be heated (hereinafter, a fluid to be heated) and the heat storage material, The plurality of heat storage material accommodation portions and the plurality of heat exchange portions are alternately stacked. Thereby, heat exchange is performed between the heat object fluid which flows through the heat exchange part of a reactor, and the thermal storage material accommodated in the thermal storage material accommodating part adjacent to the said heat exchange part.
  • the flow rate of the fluid to be heated that flows through the heat exchange unit varies depending on the position from the center of the flow path pipe. That is, although the fluid to be heated is likely to flow to the heat exchanging part arranged near the center of the flow path pipe, it is far from the center of the flow path pipe, for example, near the periphery of the flow path pipe. It is difficult for the fluid to be heated to flow to the arranged heat exchange unit.
  • This invention aims at providing the chemical heat storage apparatus which can reduce the variation in the flow volume of the heating object fluid which flows through each heat exchange part in the reactor provided with a several heat exchange part.
  • a chemical heat storage device includes a heat storage material that generates heat by a chemical reaction with a reaction medium and desorbs the reaction medium by endotherm, and a flow path that accommodates the heat storage material and flows a fluid to be heated.
  • a reactor disposed in the reactor, a reservoir for storing the reaction medium, a connecting pipe for communicating the reactor and the reservoir, and for allowing the reaction medium to flow between the reactor and the reservoir.
  • the center of the flow path with a cross-sectionally corrugated fin that allows the fluid to be heated to flow Is lower flow resistance towards a position further than the close position.
  • the heat storage material accommodation portions and the heat exchange portions are alternately stacked in the reactor.
  • the heat exchanging section includes a fin having a cross-sectional wave shape that is thermally connected to the adjacent heat storage material accommodation section and can flow the fluid to be heated. Therefore, the fluid to be heated that passes through the heat exchange unit can exchange heat with the heat storage material in the heat storage material accommodation unit via the fins.
  • the reactor is disposed in a flow path through which the fluid to be heated flows. In such a heat exchange unit, the flow resistance is lower at a position farther from the position near the center of the flow path through which the fluid to be heated flows.
  • the fluid to be heated is more likely to flow at a far position where the fluid to be heated is difficult to face compared to a position near the center of the flow path as compared to a position near it.
  • the easiness of flow of the heating target fluid at a position far from the center of the flow path can be improved, and the flow rate of the heating target fluid at the position can be increased.
  • variation in the flow rate of the heating target fluid flowing through each heat exchange unit can be reduced.
  • the pitch of the fins may be coarser at a far position than at a position near the center of the flow path.
  • the height of the fin may be higher at a position farther than a position near the center of the flow path.
  • the flow resistance can be decreased as the height of the fin is increased, and the flow resistance can be increased as the height is decreased. Accordingly, it is possible to reduce the flow resistance at a position farther away than a position near the center of the flow path.
  • the heat exchange unit is located farther from the position near the center of the flow path in the stacking direction in which the heat storage material accommodation unit and the heat exchange unit are stacked.
  • the distribution resistance may be lowered. Thereby, the uniformity of the flow rate of the heating target fluid in the stacking direction can be improved.
  • the heat exchanging portion has a lower flow resistance at a position farther from a position near the center of the flow path in the width direction in which the heat exchanging portion spreads. It's okay. Thereby, the uniformity of the flow rate of the fluid to be heated in the width direction can be improved.
  • the reactor may include a distribution space for distributing the heating target fluid to the plurality of heat exchange units. Thereby, the fluid to be heated can be distributed to the respective heat exchange units.
  • FIG. 1 is a schematic configuration diagram showing the overall configuration of a chemical heat storage device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG.
  • FIG. 3 is a cross-sectional view of a reactor according to a modification.
  • FIG. 4 is a cross-sectional view of a reactor according to a modification.
  • the chemical heat storage device 1 is a device that uses a reversible chemical reaction to heat (warm up) a heating target without external energy. Specifically, the chemical heat storage device 1 stores a reaction medium that is desorbed from the heat storage material by the heat supplied from the heating target, and supplies the stored reaction medium to the heat storage material when necessary. In this device, the heat storage material and the reaction medium are chemically reacted to warm the object to be heated using reaction heat (heat radiation) during the chemical reaction. That is, the chemical heat storage device 1 is a device that stores heat from a heating target and supplies heat to the heating target by using a reversible chemical reaction. Exhaust gas, engine oil, cooling water or the like is applied as a heating target (referred to as “heating target fluid” in the following description). Moreover, in this embodiment, although ammonia is illustrated as a reaction medium, water vapor
  • the chemical heat storage device 1 includes a reactor 2 with a heat exchange unit, a reservoir 3, a connection pipe L1, and a valve 4.
  • the reactor 2 with a heat exchange part functions as a heater, and heats the heating target fluid through the heat exchange part.
  • the reactor 2 with a heat exchange part is arrange
  • the reactor 2 with a heat exchange unit is connected to an inlet flow path (flow path) L2 on the upstream side and to an outlet flow path (flow path) L3 on the downstream side.
  • the reactor 2 with a heat exchange unit includes a stacked unit 26 (a detailed configuration will be described later) in which a plurality of heat storage units 10 and a plurality of heat storage materials 21 are stacked, and each heat of the stacked unit 26.
  • a distribution space 23 that distributes the heating target fluid to the exchange unit 10 and an aggregation space 24 that collects the heating target fluid from each heat exchange unit of the stacking unit 26 are provided.
  • the inlet channel L2 is connected to the distribution space 23 at a substantially central position in the stacking direction and the width direction.
  • the “stacking direction” is a direction in which the heat storage material storage unit that stores the heat exchange unit 10 and the heat storage material 21 is stacked in the stacking unit 26.
  • the “width direction” is a direction in which the heat exchange unit 10 extends in the stacked unit 26.
  • the heating target fluid supplied from the inlet channel L ⁇ b> 2 enters the heat exchange units 10 of the stacking unit 26 while being diffused in the stacking direction and the width direction in the distribution space 23.
  • the outlet channel L3 is provided at a substantially central position in the stacking direction and the width direction with respect to the aggregated space 24.
  • the heating target fluid discharged from each heat exchange unit 10 of the stacked unit 26 is supplied into the aggregation space 24, merges in the space, and is discharged from the outlet channel L3.
  • the reservoir 3 has an adsorbent 3a.
  • the adsorbent 3a holds ammonia by physical adsorption and desorbs (separates) ammonia according to pressure.
  • activated carbon is used as the adsorbent 3a.
  • ammonia is desorbed from the adsorbent 3 a at the time of warming up and supplied to the reactor 2 with heat exchanging part (heat storage material 21), and after the warming up, the ammonia desorbed from the heat storage material 21 is adsorbed.
  • the material 3a is collected by physical adsorption.
  • the adsorbent 3a is not limited to activated carbon, and for example, mesoporous material having mesopores such as mesoporous silica, mesoporous carbon, and mesoporous alumina, or zeolite and silica gel may be used.
  • the connecting pipe L1 is a pipe that connects the reactor 2 with the heat exchange unit and the reservoir 3.
  • the connecting pipe L1 serves as a flow path for circulating ammonia between the reactor 2 with a heat exchange section and the reservoir 3.
  • One end of the connection pipe L1 on the side of the reactor 2 with the heat exchange unit is connected to the stacking unit 26.
  • the valve 4 is a valve that opens and closes an ammonia flow path between the reactor 2 with a heat exchange section and the storage 3.
  • the valve 4 is disposed in the middle of the connecting pipe L1. When the valve 4 is opened, the reactor 2 with the heat exchange section and the reservoir 3 communicate with each other through the connection pipe L1, and ammonia can be transferred.
  • the opening / closing control of the valve 4 is performed by a dedicated controller of the chemical heat storage device 1 or an ECU [Electronic Control Unit] that controls a device to which the chemical heat storage device 1 is applied.
  • the valve 4 is, for example, an electromagnetic normally closed valve that opens when a voltage is applied.
  • the valve 4 is opened by control by the ECU or the like.
  • a predetermined temperature a temperature set based on the activation temperature of the catalyst
  • the valve 4 is opened by control by the ECU or the like.
  • the high-pressure reservoir 3 filled with ammonia and the reactor 2 with a heat exchanging section having a lower pressure than the reservoir 3 are communicated with each other, and ammonia is desorbed from the adsorbent 3 a of the reservoir 3.
  • Ammonia desorbed from the adsorbent 3a flows through the connecting pipe L1, moves to the reactor 2 with a heat exchange part, and is supplied into the reactor 2 with a heat exchange part.
  • M a X Z in the following reaction formula is the material of the heat storage material 21.
  • M is selected from alkali metals, alkaline earth metals such as Mg, Ca, Sr, transition metals such as Cr, Mn, Fe, Co, Ni, Cu, Zn, aluminum, and combinations of the metals 1 One or more cations.
  • X is one or more anions selected from fluoride ion, chloride ion, bromide ion, iodide ion, nitrate ion, thiocyanate ion, sulfate ion, molybdate ion, and phosphate ion. “X” may be, for example, Cl, Br, I or the like. “A” is the number of cations per salt molecule. “Z” is the number of anions per salt molecule. M a X Z + nNH 3 MM a (NH 3 ) n X Z + heat (A)
  • each heat storage material 21 The heat generated in each heat storage material 21 is conducted to each heat exchange unit 10.
  • heat from the heat storage material 21 is given to the heating target fluid. That is, the heat exchange unit 10 exchanges heat between the heat storage material 21 and the fluid to be heated. Thereby, the heating target fluid is heated.
  • the fluid to be heated that has been heated by the chemical heat storage device 1 flows to the downstream device or the like via the outlet channel L3.
  • the temperature of the fluid to be heated in the circulation system will increase.
  • the heat (exhaust heat) of the fluid to be heated whose temperature is increased is conducted to each heat exchange unit 10.
  • the heat storage material 21 is heated by each heat exchange unit 10 heated by the heat of the fluid to be heated. That is, the heat exchange unit 10 exchanges heat between the heating target fluid and the heat storage material 21.
  • the heat storage material 21 that chemically adsorbs ammonia absorbs the heat of the fluid to be heated and desorbs ammonia.
  • ammonia is generated (regeneration reaction). At this time, the reaction from the right side to the left side of the above reaction formula (A) occurs.
  • the valve 4 is opened under the control of the ECU or the like.
  • the ammonia generated in the reactor 2 with a heat exchanging section flows in the connecting pipe L ⁇ b> 1, moves to the storage 3 side, and is collected in the storage 3.
  • ammonia is adsorbed by the adsorbent 3a and stored.
  • the stacking unit 26 is configured by alternately stacking a plurality of heat exchange units 10 and tubes (heat storage material storage units) 22 that store a plurality of heat storage materials 21.
  • the tube 22 which accommodates the heat exchange part 10 and the heat storage material 21 is spreading along the width direction D2 perpendicular
  • the heat exchange unit 10 is disposed at both end portions (outermost portions in the stacking direction) of the stacking unit 26 in the stacking direction D1.
  • the edge part of the lamination direction D1 outer side of the heat exchanging part 10 of both ends is obstruct
  • the heat exchanging unit 10 disposed on the uppermost side in the stacking direction D1 may be referred to as “heat exchanging unit 10A”, and the heat exchanging unit 10A in the stacking direction D1 may be referred to.
  • the heat exchanging unit 10 arranged one step below may be referred to as a “heat exchanging unit 10B”.
  • the heat exchanging unit 10 disposed on the lowermost side in the stacking direction D1 may be referred to as a “heat exchanging unit 10D”, and the heat exchanging unit disposed on the upper side in the stacking direction with respect to the heat exchanging unit 10D.
  • the unit 10 may be referred to as a “heat exchange unit 10C”.
  • FIG. 10C In FIG.
  • the heat exchange unit 10 existing between the heat exchange unit 10B and the heat exchange unit 10C is omitted.
  • the number of stacked heat exchange units 10 is not particularly limited.
  • the heat exchange unit 10 may have four or more layers, four layers, or three layers.
  • the terms “upper” and “lower” are used according to the orientation of the drawing sheet, but the vertical direction is not limited in actual use.
  • the heat exchanging unit 10 is configured by arranging fins 11 having a corrugated cross section at a predetermined pitch and height in a heat exchange channel 12 through which a fluid to be heated flows.
  • the heat exchange part 10 is equipped with the fin of the cross-sectional wave shape which can distribute
  • the heat exchange channel 12 is formed between an upper wall surface and a lower wall surface facing each other in parallel in the stacking direction D1.
  • the upstream end of the heat exchange channel 12 opens into the distribution space 23, and the downstream end opens into the aggregation space 24 (see FIG. 1).
  • the fin 11 is a member for promoting heat exchange between the exhaust gas and the heat storage material 21.
  • the fin 11 is a metal member made of a metal such as stainless steel or aluminum.
  • the cross-sectional shape of the fin 11 has a waveform that spreads in the width direction D2 in a constant pattern.
  • the fin 11 has a square wave shape.
  • the fin 11 includes a first portion 11a that extends straight in the width direction D2 along the lower inner wall surface of the heat exchange channel 12, and a stacking direction D1 from the end of the portion 11a in the width direction D2.
  • the patterns of such portions 11a, 11b, 11c, and 11d are continuous along the width direction D2. At this time, the distance in the width direction D2 between the neutral axis of the second portion 11b and the neutral axis of the fourth portion 11d corresponds to the “pitch” of the waveform.
  • the distance in the stacking direction D1 between the neutral axis of the first portion 11a and the neutral axis of the third portion 11c corresponds to the “height” of the wave shape.
  • the fin 11 is extended with the fixed cross-sectional shape with respect to the direction through which the fluid to be heated flows.
  • the upstream end of the fin 11 extends to the upstream end of the heat exchange channel 12, and the downstream end of the fin 11 extends to the downstream end of the heat exchange channel 12. ing.
  • the positions of the end portions of the fins 11 are not particularly limited, and the fins 11 may be disposed inside the heat exchange channel 12 relative to the upstream and downstream ends of the heat exchange channel 12.
  • the fin 11 is joined to the wall surface constituting the heat exchange channel 12 by welding or brazing.
  • the tube 22 that houses the heat storage material 21 is disposed between the heat exchanging unit 10 and the heat exchanging unit 10 that are adjacent to each other in the stacking direction D1 of the stacking unit 26.
  • the tube 22 which accommodates the heat storage material 21 may be arrange
  • Each length of the tube 22 that accommodates the heat storage material 21 in the width direction D ⁇ b> 2 may be the same as that of the heat exchange unit 10.
  • the heat storage material 21 is, for example, a press-molded body that is press-molded into a pellet shape.
  • the heat storage material 21 accommodated in the tube 22 may have a flat, substantially rectangular parallelepiped shape.
  • the heat storage material 21 When the heat storage material 21 supplies ammonia as a reaction medium, the heat storage material 21 generates heat by chemically reacting with ammonia (chemical adsorption). Further, when the heat storage material 21 to which ammonia has been chemically adsorbed is heated via the heat exchanging portion 10 by the heating target fluid that has become high temperature, the heat is absorbed and the ammonia is desorbed.
  • a halogen compound represented by a composition formula M a XZ As the heat storage material 21, as described in the reaction formula (A), a halogen compound represented by a composition formula M a XZ is used.
  • the heat storage material 21 may be mixed with an additive that improves thermal conductivity. Examples of the additive include carbon fiber, carbon bead, SiC bead, metal bead, polymer bead, and polymer fiber. Examples of the metal material of the metal beads include Cu, Ag, Ni, Ci—Cr, Al, Fe, and stainless steel.
  • the heat exchange flow path 12 in which the fins 11 are arranged has a lower flow resistance at a position farther from the position near the center of the inlet flow path (flow path through which the heating target fluid flows) L2. .
  • the flow resistance of the heat exchange unit 10 indicates the degree of easiness of flow when the fluid to be heated flows through the heat exchange channel 12 of the heat exchange unit 10, and the higher the flow resistance, the more the fluid to be heated flows. This indicates that the lower the flow resistance, the easier the fluid to be heated flows.
  • the flow resistance of the heat exchange unit 10 may be adjusted by changing the pitch of the fins 11, or may be adjusted by changing the height of the fins 11, or adjusted by changing both. May be.
  • the height of the fin 11 is equal in each heat exchange part 10, and the fluid resistance is adjusted by changing the pitch of the fin 11.
  • the heat exchange flow path 12 in which the fins 11 are arranged has a lower flow resistance at a position farther from the position closer to the inlet flow path L2 in the stacking direction D1. .
  • the inlet flow path L2 when the inlet flow path L2 is connected to the stacking portion 26 at a substantially central position in the stacking direction D1 and the width direction D2 (the two-dot chain line indicates the inlet flow
  • the flow resistance of the heat exchanging part 10A at a far position is lower than that of the heat exchanging part 10B near the center of the inlet flow path L2.
  • the fins 11A of the heat exchange unit 10A have a larger pitch than the fins 11B of the heat exchange unit 10B.
  • the flow resistance of the heat exchange unit 10D at a far position is lower than that of the heat exchange unit 10C near the center of the inlet flow path L2.
  • the fins 11D of the heat exchange unit 10D have a larger pitch than the fins 11C of the heat exchange unit 10C.
  • the pitch of the fin on the center side may be set to be denser than the pitch of the existing fin, and the pitch of the outer fin is set to be coarser than the pitch of the existing fin. Also good.
  • a plurality of tubes 22 and a plurality of heat exchange units 10 are alternately stacked in the reactor 2.
  • the heat exchanging unit 10 includes a fin 11 having a corrugated cross section that is thermally connected to the adjacent tube 22 and can flow the heating target fluid. Therefore, the fluid to be heated that passes through the heat exchanging unit 10 can exchange heat with the heat storage material 21 accommodated in the tube 22 via the fins 11.
  • the reactor 2 is disposed in a flow path through which the fluid to be heated flows.
  • the reactor 2 is connected to an inlet channel L ⁇ b> 2 that supplies a heating target fluid to the plurality of heat exchange units 10.
  • heat exchange part 10 In such a heat exchange part 10, it is far from the position (specifically, the heat exchange parts 10B and 10C shown in FIG. 2) close to the center of the inlet flow path L2, which is a flow path through which the fluid to be heated flows.
  • the flow resistance is lower at the positions (heat exchange units 10A and 10D). Therefore, in the far position (heat exchange part 10A, 10D) where the fluid to be heated is hard to face compared to the position near the center of the inlet channel L2, compared to the near position (heat exchange part 10B, 10C).
  • the fluid to be heated is easy to flow.
  • the easiness of flow of the heating target fluid at a position far from the center of the inlet channel L2 can be improved, and the flow rate of the heating target fluid at the position can be increased.
  • variation in the flow rate of the heating target fluid flowing through each heat exchange unit 10 can be reduced.
  • the reaction with the heat storage material 21 is completed early in the heat exchange unit 10 with a large flow rate.
  • the heat exchange part 10 with a small flow rate it takes time for the reaction in the heat storage material 21. Therefore, the problem that reaction time becomes long with respect to the heat output of the reactor 2 whole arises.
  • the pitch of the fins 11 is coarser at a position farther than a position near the center of the inlet channel L2 that is a channel.
  • the distribution resistance can be increased as the pitch of the fins 11 is roughened, and the distribution resistance can be increased as the pitch is increased. Therefore, it is possible to reduce the flow resistance at a position farther away than a position near the center of the inlet channel L2.
  • the heat exchange unit 10 in which the fins 11 are arranged has the inlet channel L2 in the stacking direction D1 in which the tube 22 that stores the heat storage material 21 and the heat exchange unit 10 are stacked.
  • the flow resistance is lower at the far position than at the position near the center. Thereby, the uniformity of the flow volume of the heating target fluid in the stacking direction D1 can be improved.
  • the fins 11A and 11D of the outermost heat exchange parts 10A and 10D in the stacking direction D1 are in contact with the cover members 6 and 7 exposed to the outside.
  • the amount of heat radiated to the outside through the fins 11A and 11D and the cover members 6 and 7 can be reduced by increasing the pitch of the fins 11A and 11D in order to reduce the flow resistance.
  • the reactor 2 includes a distribution space 23 that distributes the fluid to be heated to the plurality of heat exchange units 10. Thereby, the fluid to be heated can be distributed to the respective heat exchanging units 10.
  • the present invention is not limited to the embodiment described above.
  • the height of the fin 31 is higher at a position farther than a position near the center of the flow path.
  • the flow resistance can be lowered as the height of the fin 31 is increased, and the flow resistance can be increased as the height is lowered. Therefore, it is possible to reduce the flow resistance at a position farther away than a position near the center of the inlet channel L2.
  • the heights of the fins 31A and 31D of the portions 30A and 30D are higher.
  • the heat exchanging unit 10 is circulated in a far position in the width direction D2 in which the heat exchanging unit 10 spreads as compared to a position near the center of the inlet channel L2.
  • the resistance is low.
  • the uniformity of the flow volume of the heating object fluid in the width direction D2 can be improved.
  • the pitch of the fins 31A, 31B, 31C, and 31D of the heat exchange units 30A, 30B, 30C, and 30D becomes rougher as the distance from the center of the inlet channel L2 increases in the width direction D2.
  • the flow resistance at a position far from the center of the inlet channel L2 in the width direction D2 can be reduced.
  • the reactor 2 shown in FIG. 4 may be adopted.
  • curved corrugated fins 41A, 41B, 41C, and 41D are employed instead of the rectangular corrugated shape as described above. .
  • the flow resistance of the heat exchange unit 10 (that is, the aspect of the fins) is changed step by step.
  • the distribution resistance may be changed by a plurality of stages.
  • the flow resistance may be the same for the two-stage heat exchange unit 10 that is continuous in the stacking direction D1, and may be different from the flow resistance of the other heat exchange unit 10 adjacent to the set.
  • the attachment position with respect to the reactor 2 of the inlet flow path L2 and the outlet flow path L3 may not be a center position, and may be a position close to one end side in the stacking direction D1 or the width direction D2. That is, as long as the reactor is arranged in the flow path through which the fluid to be heated flows, the mode and the like of the flow path and the reactor are not particularly limited.
  • the flow path piping extends, and the reactor 2 may be disposed inside without changing the diameter of the flow path piping.

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  • Thermal Sciences (AREA)
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Abstract

L'invention concerne un appareil de stockage de chaleur chimique doté d'un élément de stockage de chaleur dans lequel de la chaleur est générée par une réaction chimique avec un milieu de réaction et le milieu de réaction est séparé par le biais d'un changement endothermique; un réacteur destiné à recevoir en son sein le matériau de stockage de chaleur, ledit réacteur étant positionné dans un trajet d'écoulement dans lequel un fluide devant être chauffé circule; un réservoir dans lequel le milieu de réaction est stocké; et un tuyau de raccordement par l'intermédiaire duquel le réacteur et le réservoir communiquent et à travers lequel le milieu de réaction est mis en circulation entre le réacteur et le réservoir. Le réacteur est doté d'une pluralité d'unités de réception de matériau de stockage de chaleur destinées à recevoir l'élément de stockage de chaleur et d'une pluralité de sections d'échange de chaleur disposées attenantes aux unités de réception de matériau de stockage de chaleur, lesdites sections d'échange de chaleur réalisant un échange de chaleur entre le fluide devant être chauffé et l'élément de stockage de chaleur dans les unités de réception de matériau de stockage de chaleur. Les unités de réception de matériau de stockage de chaleur et les unités d'échange de chaleur sont empilées de manière alternée. Chacune des unités d'échange de chaleur de la pluralité d'unités d'échange de chaleur est thermiquement raccordée aux unités de réception de matériau de stockage de chaleur attenantes et dotée d'ailettes qui présentent une forme ondulée en section transversale et qui permettent la circulation du fluide devant être chauffé. La résistance à la circulation est inférieure au niveau d'une position plus éloignée du centre du trajet d'écoulement dans lequel le fluide devant être chauffé circule par rapport à une une position proche du centre du trajet d'écoulement.
PCT/JP2016/086389 2015-12-22 2016-12-07 Appareil de stockage de chaleur chimique WO2017110477A1 (fr)

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JP2015-250209 2015-12-22
JP2015250209A JP2017116153A (ja) 2015-12-22 2015-12-22 化学蓄熱装置

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
FR3087252A1 (fr) * 2018-10-15 2020-04-17 Coldinnov Reacteur thermochimique et procede de production d’energie thermique associe

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Publication number Priority date Publication date Assignee Title
JP6793858B2 (ja) * 2017-12-14 2020-12-02 三菱電機株式会社 流路板の製造方法

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JPS60165689U (ja) * 1984-04-06 1985-11-02 住友精密工業株式会社 蓄熱熱交換器
JPH1038490A (ja) * 1996-07-22 1998-02-13 Hitachi Ltd 高温熱交換器用フィン付き伝熱管
JP2001227334A (ja) * 1999-12-10 2001-08-24 Toyota Motor Corp 内燃機関の排気浄化装置
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WO2020079360A1 (fr) * 2018-10-15 2020-04-23 Coldinnov Réacteur thermochimique et procédé de production d'énergie thermique associé

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