CN117308648A - Heat exchange device for reforming hydrogen production - Google Patents
Heat exchange device for reforming hydrogen production Download PDFInfo
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- CN117308648A CN117308648A CN202311474485.3A CN202311474485A CN117308648A CN 117308648 A CN117308648 A CN 117308648A CN 202311474485 A CN202311474485 A CN 202311474485A CN 117308648 A CN117308648 A CN 117308648A
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- Prior art keywords
- heat exchange
- medium
- exchange module
- hydrogen production
- communication
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 49
- 239000001257 hydrogen Substances 0.000 title claims abstract description 49
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000002407 reforming Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000008093 supporting effect Effects 0.000 description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/0075—Supports for plates or plate assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchange device for reforming hydrogen production, which comprises: the first heat exchange module comprises a barrel-shaped shell and a heat exchange tube, a first port of the shell is a first medium inlet, and a second port of the heat exchange tube penetrates through the bottom of the shell and is configured as a second medium outlet; the second heat exchange module is of an annular structure and sleeved on the outside of the first heat exchange module, and comprises a plurality of cylindrical plates, a first medium space and a second medium space which are alternately formed between the cylindrical plates, and a first medium outlet and a second medium inlet which are respectively communicated with the first medium space and the second medium space; a first communication structure for communicating the heat exchange cavity with the first medium space is arranged between the second end of the first heat exchange module and the second end of the second heat exchange module, and a second communication structure for communicating the first port of the heat exchange tube with the second medium space is arranged between the first end of the first heat exchange module and the first end of the second heat exchange module.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a heat exchange device for reforming hydrogen production.
Background
Energy is the most important element in human economic activity. Hydrogen energy is emerging as a well-established clean energy source, and in today's society as a low and zero carbon energy source. Hydrogen gas represents an extremely broad and potential market as a new energy fuel. How to prepare and cater for this necessarily coming development from planning and technology would be a significant issue. Advanced technology, rational methods for producing and applying hydrogen are chosen to obtain maximum economic and environmental benefits, which is a trend in the future.
At present, methanol is widely used for preparing hydrogen, and the hydrogen preparation by methanol refers to a process of preparing hydrogen by taking methanol as a raw material and performing a conversion reaction under the condition of certain temperature and pressure under the action of a hydrogen preparation catalyst by methanol vapor. In the prior art, the method for reutilizing the mixed gas of tail gas after the reaction of methanol vapor and hydrogen production catalyst and air by using combustion catalysis effectively reduces the resource loss. However, when the existing equipment utilizes tail gas combustion to produce hydrogen, steam is required to be produced through a steam generating device, then the steam is introduced into a hydrogen reaction device to react with a hydrogen production catalyst to produce hydrogen, the structure is complex, and the steam generating device, the hydrogen reaction device, a connecting pipeline between the steam generating device and the hydrogen reaction device and the connecting pipeline between the steam generating device and the hydrogen reaction device are required to be arranged independently, so that the whole volume of the device is large, the whole efficiency is low, and the improvement space is provided.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the heat exchange device for reforming hydrogen production, which combines the second heat exchange module for preparing steam and the first heat exchange module for preparing reaction hydrogen production together skillfully and compactly, so that the whole volume of the device is effectively reduced; meanwhile, the flow paths of the first medium and the second medium are effectively prolonged, the overall heat exchange effect of the device is effectively improved, the hydrogen production efficiency is further improved, and the hydrogen production energy consumption is reduced.
In order to achieve the above object, the present invention provides a heat exchange device for reforming hydrogen production, comprising:
the first heat exchange module comprises a barrel-shaped shell with a heat exchange cavity and a plurality of heat exchange pipes axially extending and arranged in the heat exchange cavity, wherein a first end port of the shell is of an open structure and is configured to be arranged as a first medium inlet, a second end port of the shell is of a closed structure with a bottom, and the second end ports of the plurality of heat exchange pipes extend through the bottom of the second end of the shell and are configured to be arranged as a second medium outlet;
the second heat exchange module is of an annular structure and sleeved outside the first heat exchange module, the second heat exchange module comprises a plurality of cylindrical plates which are nested and connected at intervals in sequence, first medium spaces and second medium spaces which are alternately arranged are formed between the adjacent cylindrical plates corresponding to the second heat exchange module, the first medium spaces of the second heat exchange module are communicated for the flow of a first medium, and the second medium spaces of the second heat exchange module are communicated for the flow of a second medium;
the first heat exchange module is also provided with a first medium outlet communicated with the first medium space and a second medium inlet communicated with the second medium space;
a first communication structure used for communicating the heat exchange cavity with the first medium space is arranged between the second end of the first heat exchange module and the second end of the second heat exchange module, and a second communication structure used for communicating the first end port of the heat exchange tube with the second medium space is arranged between the first end of the first heat exchange module and the first end of the second heat exchange module.
Further provided is that: the second heat exchange module further comprises blocking covers positioned at two axial ends, and two blocking covers are formed at two axial ends of the second heat exchange module to form a collecting and distributing cavity communicated with the first medium space or the second medium space.
Further provided is that: the blocking cover is of an annular cover body structure, and the inner edge and the outer edge of the cover body are respectively connected with the cylindrical plate positioned at the innermost side and the cylindrical plate positioned at the outermost side in a sealing way;
or the blanking cover is of an annular plate structure, both ends of the cylindrical plate positioned at the outermost side and both ends of the shell are protruded out of both ends of the cylindrical plate positioned between the two ends, and the blanking cover is arranged between the inner wall of the cylindrical plate positioned at the outermost side and the outer wall of the shell in a sealing fit manner.
Further provided is that: the collecting and distributing cavity is communicated with another medium space different from the innermost medium space, and at least one through first through channel is formed at one axial end of the space wall of the collecting and distributing cavity and the space wall of the heat exchange cavity;
and at least one through second through channel is arranged between the cavity wall of the medium space at the innermost side and the cavity wall of the heat exchange cavity in a corresponding axial direction.
Further provided is that: the heat exchange device comprises a shell, and is characterized in that a communication component is arranged in a first end port of the shell, the communication component comprises a ring body, a plurality of cover bodies positioned in the ring body and a plurality of connecting arms used for connecting the ring body and the cover bodies, the ring body is correspondingly attached to the inner wall of a heat exchange cavity and is correspondingly provided with notches which are in butt joint communication with ports of a through channel, the number of the cover bodies is the same as that of the heat exchange tubes, the cover bodies are correspondingly attached to the first end ports of the heat exchange tubes one by one, and the connecting arms are internally provided with communication channels used for communicating the notches and the cover bodies.
Further provided is that: the second heat exchange module comprises a first support structure and a second support structure which are alternately arranged between adjacent cylindrical plates so that the cylindrical plates are arranged at intervals, and meanwhile, the second support structure also seals the two axial ends of the corresponding medium space to block communication with the distribution cavity.
Further provided is that: the first supporting structure comprises at least one supporting block, the supporting blocks are connected with the cylindrical plates on two sides in a sealing fit mode, communication holes are formed in the supporting blocks, and through holes communicated with the communication holes in the supporting blocks in a butt joint mode are formed in the cylindrical plates on two sides.
Further provided is that: the second supporting structure comprises two supporting ring structures, and the two supporting rings are respectively arranged between two end parts of the cylindrical plate to block communication between the corresponding medium space and the collecting and distributing cavity.
Further provided is that: the second support structure further comprises a plurality of separation strips connected between the two support rings, and the separation strips divide the corresponding medium space into a plurality of chambers.
Further provided is that: a plurality of spoilers are arranged in the heat exchange cavity.
Further provided is that: and a heat insulation layer is arranged between the second heat exchange module and the first heat exchange module.
Further provided is that: and turbulence protrusions are arranged on the plate surface of at least one cylindrical plate.
Compared with the prior art, the invention constructs the second heat exchange module for preparing steam into an annular structure and is sleeved on the barrel-shaped first heat exchange module for preparing hydrogen by reaction, so that the whole structure of the device is more compact and reasonable, and the whole volume of the device is effectively reduced; meanwhile, the flow paths of the first medium and the second medium are effectively prolonged, so that the heat exchange effect of the device is effectively improved, the hydrogen production efficiency of the device is further improved, and the hydrogen production energy consumption is reduced.
Drawings
FIG. 1 is a schematic illustration of a three-dimensional structure of a heat exchange device for reforming hydrogen production according to the present invention;
FIG. 2 is a schematic diagram of a heat exchange device in a second perspective view;
FIG. 3 is a schematic view of an axial cross-sectional structure of a heat exchange device;
FIG. 4 is a schematic view of a radial cross-sectional structure of the heat exchange device with the cover removed;
FIG. 5 is a schematic view of a partially separated construction of a first heat exchange module;
fig. 6 is a partially separated schematic illustration of a second heat exchange module.
The following reference numerals are attached thereto in combination with the accompanying drawings:
100. a first heat exchange module; 110. a housing; 111. a first through passage; 112. a second through passage; 113. a bottom; 120. a heat exchange tube; 121. a catalyst cartridge; 130. a communication member; 131. a ring body; 132. a cover body; 133. a connecting arm; 140. a spoiler; 200. a second heat exchange module; 210. a cylindrical plate; 211. turbulence bumps; 212. a via hole; 220. a blanking cover; 230. a first support structure; 231. a support block; 2311. a communication hole; 240. a second support structure; 241. a support ring; 242. a separator bar; 250. a first medium outlet; 260. a second medium inlet; A. a first end; B. a second end; C. a heat exchange cavity; D. a first media space; E. a second medium space; F. a collecting and distributing cavity.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
The heat exchange device for reforming hydrogen production comprises a first heat exchange module 100 for reaction hydrogen production and a second heat exchange module 200 for steam preparation, wherein the first heat exchange module 100 is of a barrel-shaped structure, the second heat exchange module 200 is of an annular structure and is sleeved outside the first heat exchange module 100, and the first heat exchange module 100 and the second heat exchange module 200 are preferably integrally connected through welding, so that the whole volume of the device can be effectively reduced.
In this embodiment, as shown in fig. 3 and 5, the first heat exchange module 100 is a shell-and-tube heat exchange structure, and includes a barrel-shaped shell 110 with a heat exchange cavity C, and a plurality of heat exchange tubes 120 axially extending and arranged in the shell 110, at least one heat exchange tube 120 is provided with a hydrogen production catalyst, and preferably the hydrogen production catalyst is installed in the heat exchange tube 120 in the form of a catalyst box 121; the first end A port of the shell 110 corresponding to the axial direction is an open structure and is configured as a first medium inlet of the device, the second end B of the shell 110 corresponding to the axial direction is a closed structure with a bottom 113, the second ends B of the heat exchange tubes 120 are fixedly arranged on the bottom 113 of the shell 110 in a penetrating way, and the second end B ports of the heat exchange tubes 120 are configured as a second medium outlet of the device.
In this embodiment, as shown in fig. 3 and 6, the second heat exchange module 200 is in an annular structure and is fixedly sleeved (welded) on the outside of the first heat exchange module 100, the second heat exchange module 200 includes a plurality of cylindrical plates 210 which are nested and connected at intervals in sequence, and a first medium space D and a second medium space E which are alternately arranged from outside to inside in sequence are formed between the adjacent cylindrical plates 210 corresponding to the second heat exchange module 200, and it is to be noted that the shell 110 of the first heat exchange module 100 is the innermost cylindrical plate 210 of the second heat exchange module 200, and meanwhile, the first medium space D and the second medium space inside the second heat exchange module 200 are respectively communicated to flow with a first medium (high temperature air) and a second medium (methanol water); the second heat exchange module 200 is provided with a first medium outlet connected with the first medium space D and a second medium inlet communicated with the second medium space E, a first communication structure for communicating the heat exchange cavity C and the first medium space D is constructed between the second end B of the first heat exchange module 100 and the second end B of the second heat exchange module 200, and a second communication structure for communicating the first end A port of the heat exchange tube 120 and the second medium space E is constructed between the first end A of the first heat exchange module 100 and the first end A of the second heat exchange module 200; thus, the flow path of the first medium (high temperature air) structure in the present apparatus is: the flow path of the second medium (methanol water) structure in the device is as follows: the second medium inlet 260- & gt the second medium space E- & gt the second communication structure- & gt the second end B port of the heat exchange tube 120- & gt the first end A port (second medium outlet) of the heat exchange tube 120, so that the flow paths of the first medium and the second medium are effectively prolonged, the heat exchange area is increased, and the overall heat exchange effect and the hydrogen production effect of the device are improved.
In this embodiment, as shown in fig. 3 and 6, the second heat exchange module 200 further includes blocking covers 220 located at two axial ends of the cylindrical plate 210, where the blocking covers 220 at two ends are correspondingly configured to form a distributed cavity F in communication with the first medium space D or the second medium space E at two axial ends of the second heat exchange module 200; specifically, the plugging cover 220 is an annular cover body structure, and the inner edge and the outer edge of the cover body are respectively in sealing welding connection with the cylindrical plate 210 positioned at the innermost side and the cylindrical plate 210 positioned at the outermost side so as to form a collecting and distributing cavity F in a matching way; alternatively, the plugging cover 220 is in an annular plate structure, both the axial ends of the cylindrical plate 210 located at the outermost side and the axial ends of the housing 110 protrude from the ends of the cylindrical plate 210 located therebetween, and the plugging cover 220 is sealed and welded between the cylindrical plate 210 located at the outermost side and the outer wall of the housing 110 to form the distribution chamber F.
In the present embodiment, as shown in fig. 3 and 4, the second heat exchange module 200 further includes a first support structure 230 and a second support structure 240 alternately arranged between the adjacent cylindrical plates 210, and the adjacent cylindrical plates 210 are arranged at a stable interval between the plates by the supporting action of the first support structure 230 and the second support structure 240 to form a first medium space D and a second medium space E.
In the above-mentioned scheme, the first support structure 230 is located in the first medium space D, the first support structure 230 includes at least one metal support block 231, the metal support block 231 is in sealing and welding connection with the cylindrical plates 210 on both sides, meanwhile, the support block 231 is provided with a communication hole 2311, and the cylindrical plates 210 on both sides are respectively provided with a via hole 212, so that the communication hole 2311 cooperates with the via holes 212 on both sides to form two second medium spaces E on both sides of the first medium space D; preferably, the first support structure 230 includes two groups of support blocks 231, each group of support blocks 231 includes a plurality of annular support blocks 231 arranged at intervals, the two groups of support blocks 231 are respectively clamped between two ends of two adjacent cylindrical plates 210, the groups of support blocks 231 are welded with the cylindrical plates 210 on two sides, the first medium spaces D and the distributing chambers F are communicated through gaps between the adjacent support blocks 231, and thus the first medium spaces D of the second heat exchange module 200 are communicated with each other through the distributing chambers F; the first medium outlet 250 is mounted on the outermost cylindrical plate 210.
In the above-mentioned scheme, the second supporting structure 240 is located in the second medium space E and includes two metal supporting rings 241, where the two metal supporting rings 241 are respectively clamped between two ends of two adjacent cylindrical plates 210 and are in sealing welding connection with the cylindrical plates 210 on two sides, so that the two supporting rings 241 completely block the two ends of the second medium space E to block the communication between the second medium space E and the scattering cavity F; meanwhile, the adjacent second medium spaces E are communicated with each other by corresponding supporting blocks 231, namely, at least one supporting block 231 in the first medium space D is provided with a communication hole 2311, the tubular plates 210 on two sides are provided with through holes 212 communicated with the communication hole 2311, so that the second medium spaces E in the second heat exchange module 200 are communicated with the communication holes 2311 on the supporting blocks 231 through the through holes 212 on the tubular plates 210, and the second medium inlets 260 penetrate through the outermost tubular plates 210 and are connected with the through holes 212 on the second tubular plates 210 in a butt joint mode.
In other embodiments, the first support structure 230 may also include a rubber sealing block, with the rubber sealing block replacing the metal support block 231 in the above embodiments; alternatively, the first support structure 230 may also include a convex hull stamped on at least one side of the cylindrical sheet 210, and the convex hull is abutted against the opposite cylindrical sheet 210 or the opposite convex hull to replace the metal support blocks 231 in the above embodiment.
In other embodiments, the second support structure 240 may also include a rubber sealing ring, with the rubber sealing ring replacing the metal support ring 241 in the above embodiments; alternatively, the second support structure 240 may also include an annular convex hull stamped on at least one side of the cylindrical sheet 210, and the metal support ring 241 in the above embodiment is replaced by an annular convex hull abutting against the opposite cylindrical sheet 210 or an opposite annular convex hull.
In this embodiment, the medium space located at the innermost side of the second heat exchange module 200 is a second medium space E, and at least one through first through channel 111 is configured and arranged between the distribution cavity F located at the second end B and the second end B of the housing 110 to realize communication between the first medium space D and the heat exchange cavity C of the housing 110, where the first through channel 111 is a first port structure disposed on the second end B of the housing 110; at least one through second through channel 112 is configured between the first end a of the innermost cylindrical plate 210 and the first end a of the housing 110, the second through channel 112 is a second port structure disposed on the second end B of the housing 110, meanwhile, a communication member 130 is disposed in the first end a of the housing 110, and the communication member 130 is used for communicating a port of the second through channel 112 with a port of the heat exchange tube 120 to realize structural communication between the second medium space E and the heat exchange tube 120.
In the above-mentioned scheme, the communication member 130 includes a ring body 131, a cover 132 located in the ring body 131, and a plurality of connection arms 133 for connecting the ring body 131 and the cover 132, where the ring body 131 is correspondingly attached to the inner wall of the housing 110, and the ring body 131 is provided with notches that are butted with ports of the second through channel 112, the number of the cover 132 is the same as the number of the heat exchange tubes 120 and is covered in a one-to-one correspondence manner, and the connection arms 133 are internally configured with communication notches and communication channels of the cover 132; preferably, the number of the second through channels 112 is the same as that of the heat exchange tubes 120, and meanwhile, the ring body 131 is provided with the same number of slots as the second through channels 112 and is arranged in a one-to-one correspondence manner, and the number of the connecting arms 133 is the same as that of the cover bodies 132 so as to realize one-to-one correspondence conduction between the slots and the cover bodies 132; preferably, each second medium space E of the second heat exchange module 200 is divided into chambers equal in number to the heat exchange tubes 120, and in particular, the second support structure 240 further includes a plurality of dividing bars 242 connected between the two support rings 241, the plurality of dividing bars 242 divide the second medium space E into a plurality of chambers, at least one support block 231 having a structure of a communication hole 2311 is provided in a projection range of the first medium space D corresponding to each chamber to achieve respective communication between the opposite chambers, while the number of the second medium inlets 260 is the same as that of the chambers of each second medium space E and is configured to be in one-to-one correspondence communication, methanol water is respectively injected into the plurality of chambers of the second medium space E through the plurality of second medium inlets 260, vaporized into steam under heating of high temperature air flowing in the first medium space D, and then introduced into the respective heat exchange tubes 120 through the communication member 130 and reacted with the hydrogen production catalyst under the high temperature air in the heat exchange chamber C to produce hydrogen.
In the above-mentioned solution, the turbulence protrusion 211 is disposed on the plate surface of at least one of the cylindrical plates 210 of the second heat exchange module 200, so that the flow of the first medium and/or the second medium in the respective medium spaces is disturbed by the turbulence protrusion 211, so as to further improve the heat exchange effect of the second heat exchange module 200.
In the above-mentioned scheme, a plurality of spoilers 140 are disposed in the heat exchange cavity C of the housing 110, specifically, the spoilers 140 are sleeved on the heat exchange tube 120 to configure a manner that high-temperature air flowing in through the first medium inlet alternately passes through the middle of the spoilers 140 in a converging manner and passes through the edges of the spoilers 140 in a dispersing manner in the heat exchange cavity C, so that the flow of the high-temperature air in the heat exchange cavity C is disturbed to further improve the heat exchange effect of the first heat exchange module 100; preferably, a heat insulation layer is arranged between the second heat exchange module 200 and the first heat exchange module 100, so as to effectively improve the heat insulation effect of the second heat exchange module 200 and effectively avoid direct heat dissipation.
Compared with the prior art, the invention constructs the second heat exchange module for preparing steam into an annular structure and is sleeved on the barrel-shaped first heat exchange module for preparing hydrogen by reaction, so that the whole structure of the device is more compact and reasonable, and the whole volume of the device is effectively reduced; meanwhile, the flow paths of the first medium and the second medium are effectively prolonged, so that the heat exchange effect of the device is effectively improved, the hydrogen production efficiency of the device is further improved, and the hydrogen production energy consumption is reduced.
The above disclosure is merely an example of the present invention, but the present invention is not limited thereto, and any variations that can be considered by a person skilled in the art should fall within the protection scope of the present invention.
Claims (12)
1. A heat exchange device for reforming hydrogen production, comprising:
the first heat exchange module comprises a barrel-shaped shell with a heat exchange cavity and a plurality of heat exchange pipes axially extending and arranged in the heat exchange cavity, wherein a first end port of the shell is of an open structure and is configured to be arranged as a first medium inlet, a second end port of the shell is of a closed structure with a bottom, and the second end ports of the plurality of heat exchange pipes extend through the bottom of the second end of the shell and are configured to be arranged as a second medium outlet;
the second heat exchange module is of an annular structure and sleeved outside the first heat exchange module, the second heat exchange module comprises a plurality of cylindrical plates which are nested and connected at intervals in sequence, first medium spaces and second medium spaces which are alternately arranged are formed between the adjacent cylindrical plates corresponding to the second heat exchange module, the first medium spaces of the second heat exchange module are communicated for the flow of a first medium, and the second medium spaces of the second heat exchange module are communicated for the flow of a second medium;
the first heat exchange module is also provided with a first medium outlet communicated with the first medium space and a second medium inlet communicated with the second medium space;
a first communication structure used for communicating the heat exchange cavity with the first medium space is arranged between the second end of the first heat exchange module and the second end of the second heat exchange module, and a second communication structure used for communicating the first end port of the heat exchange tube with the second medium space is arranged between the first end of the first heat exchange module and the first end of the second heat exchange module.
2. The heat exchange device for reforming hydrogen production as defined in claim 1, wherein the second heat exchange module further comprises two covers at two axial ends, and two covers are configured at two axial ends of the second heat exchange module to form a distribution chamber in communication with the first medium space or the second medium space.
3. The heat exchange device for reforming hydrogen production as defined in claim 2, wherein the cover has a ring-shaped cover structure, and the inner edge and the outer edge of the cover are respectively connected with the cylindrical plate positioned at the innermost side and the cylindrical plate positioned at the outermost side in a sealing manner;
or the blanking cover is of an annular plate structure, both ends of the cylindrical plate positioned at the outermost side and both ends of the shell are protruded out of both ends of the cylindrical plate positioned between the two ends, and the blanking cover is arranged between the inner wall of the cylindrical plate positioned at the outermost side and the outer wall of the shell in a sealing fit manner.
4. A heat exchange device for reforming hydrogen production as defined in claim 2, wherein the collecting and distributing chamber is communicated with another medium space different from the innermost medium space, and at least one through first through passage is formed at one end of the axial direction between the chamber wall of the collecting and distributing chamber and the chamber wall of the heat exchange chamber;
and at least one through second through channel is arranged between the cavity wall of the medium space at the innermost side and the cavity wall of the heat exchange cavity in a corresponding axial direction.
5. The heat exchange device for reforming hydrogen production as defined in claim 4, wherein the first end port of the housing is internally provided with a communication member, the communication member comprises a ring body, a plurality of covers positioned in the ring body, and a plurality of connecting arms for connecting the ring body and the covers, the ring body is correspondingly attached to the inner wall of the heat exchange cavity, notches which are correspondingly arranged on the ring body and are in butt joint communication with the ports of the through channels are correspondingly arranged on the ring body, the number of the covers is the same as that of the heat exchange tubes, the covers are correspondingly covered on the first end ports of the heat exchange tubes one by one, and the connecting arms are internally provided with communication channels for communicating the notches with the covers.
6. A heat exchange device for reforming hydrogen production as defined in claim 2 or 4, wherein the second heat exchange module comprises first and second support structures alternately arranged between adjacent cylindrical plates so that the cylindrical plates are arranged at a spacing therebetween, and the second support structures also block both axial ends of the corresponding medium space to block communication with the distribution chamber.
7. The heat exchange device for reforming hydrogen production as defined in claim 6, wherein the first support structure comprises at least one support block, the support block is connected with the cylindrical plates on two sides in a sealing fit manner, communication holes are formed in the support block, and the cylindrical plates on two sides are provided with through holes in butt joint communication with the communication holes in the support block.
8. A heat exchange device for reforming hydrogen production as defined in claim 6, wherein said second support structure comprises two support ring structures, two of said support rings being disposed between the ends of the cylindrical plate, respectively, to block communication between the corresponding medium space and the distribution chamber.
9. A heat exchange device for reforming hydrogen production as defined in claim 8, wherein said second support structure further comprises a plurality of dividing strips connected between the two support rings, a plurality of said dividing strips dividing the corresponding media space into a plurality of chambers.
10. The heat exchange device for reforming hydrogen production as defined in claim 1, wherein a plurality of spoilers are disposed in the heat exchange chamber.
11. The heat exchange device for reforming hydrogen production as defined in claim 1, wherein a heat insulating layer is provided between the second heat exchange module and the first heat exchange module.
12. The heat exchange device for reforming hydrogen production as defined in claim 1, wherein at least one of said cylindrical plates has turbulence protrusions provided on the plate surface thereof.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311474485.3A CN117308648A (en) | 2023-11-07 | 2023-11-07 | Heat exchange device for reforming hydrogen production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311474485.3A CN117308648A (en) | 2023-11-07 | 2023-11-07 | Heat exchange device for reforming hydrogen production |
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| CN117308648A true CN117308648A (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311474485.3A Pending CN117308648A (en) | 2023-11-07 | 2023-11-07 | Heat exchange device for reforming hydrogen production |
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| Country | Link |
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| CN (1) | CN117308648A (en) |
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