CN112794285B - Hydrogen production method and hydrogen production system - Google Patents
Hydrogen production method and hydrogen production system Download PDFInfo
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- CN112794285B CN112794285B CN202110040857.6A CN202110040857A CN112794285B CN 112794285 B CN112794285 B CN 112794285B CN 202110040857 A CN202110040857 A CN 202110040857A CN 112794285 B CN112794285 B CN 112794285B
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 212
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 212
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 208
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 123
- 238000010438 heat treatment Methods 0.000 claims abstract description 128
- 239000007789 gas Substances 0.000 claims abstract description 67
- 238000006243 chemical reaction Methods 0.000 claims abstract description 59
- 239000002912 waste gas Substances 0.000 claims abstract description 34
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 238000007084 catalytic combustion reaction Methods 0.000 claims description 37
- 238000005485 electric heating Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 16
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 10
- 238000013021 overheating Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 239000012295 chemical reaction liquid Substances 0.000 abstract description 22
- 238000003303 reheating Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 238000005338 heat storage Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The invention discloses a hydrogen production method and a hydrogen production system, wherein the hydrogen production method comprises the following steps: step S10: introducing a steam reaction liquid: introducing the steam reaction liquid into a heating cavity; step S20: heating the steam reaction liquid: heating the steam reaction liquid by a hot waste gas and/or tail gas reaction combination and/or an electric heater to obtain steam; step S30: superheating the steam: reheating the steam in a superheating cavity through the hot waste gas and/or the tail gas reaction combination and/or the electric heater to obtain superheated steam; step S40: introducing the superheated steam: introducing the superheated steam into a hydrogen production part; step S50: preparing hydrogen: the superheated steam is contacted with a hydrogen production catalyst in the hydrogen production part, and the superheated waste gas is heated by an electric heater and/or hot waste gas to react to generate hydrogen. The invention solves the problems of single heating mode and energy waste in the hydrogen production reaction.
Description
Technical Field
The invention relates to the technical field of chemical equipment, in particular to a hydrogen production method and a hydrogen production system.
Background
With the use of traditional mineral energy in large quantities, the atmospheric pollution is increasingly serious, and mineral resources are gradually exhausted, so that an environment-friendly and efficient clean energy source, such as solar energy, hydroenergy, wind energy and hydrogen energy, is urgently needed. Among them, hydrogen can be burnt cleanly and is an ideal energy, but in the process of hydrogen production, the production environment needs to be strictly controlled, and once hydrogen leaks, serious safety accidents are caused.
In the existing hydrogen production process, a method for preparing hydrogen by using methanol and water as raw material liquid is utilized. In the production process, firstly, the liquid raw material is introduced into hydrogen production equipment, the liquid raw material is gasified through a high-temperature heating device, and finally, steam is introduced into a hydrogen production reaction furnace to prepare hydrogen. Heating is also needed to provide reaction temperature in the hydrogen production process, but the single electric heating mode is relatively wasteful of energy.
Disclosure of Invention
Therefore, the embodiment of the invention provides a hydrogen production and purification system, which effectively solves the problems of single heating mode and energy waste in hydrogen production reaction.
In one aspect, the present invention provides a method of producing hydrogen comprising: step S10: introducing a steam reaction liquid: introducing the steam reaction liquid into a heating cavity; step S20: heating the steam reaction liquid: heating the steam reaction liquid by using hot waste gas and/or a catalytic combustion mode and/or an electric heater to obtain steam; step S30: superheating the steam: reheating the steam in a superheating cavity through the hot waste gas and/or the catalytic combustion mode and/or the electric heater to obtain superheated steam; step S40: introducing the superheated steam: introducing the superheated steam into a hydrogen production part; step S50: preparing hydrogen: the superheated steam is contacted with a hydrogen production catalyst in the hydrogen production part, and is heated by an electric heater and/or hot waste gas and/or a catalytic combustion mode to generate hydrogen.
The technical effect achieved after the technical scheme is adopted is as follows: the heating mode of the hot waste gas can utilize the heat of the hot waste gas, the combustion reaction of the tail gas can utilize the chemical energy of the tail gas, and the multiple heating modes and the combination thereof can provide enough heat for the hydrogen production reaction and save energy; the steam conversion degree of the steam reaction liquid can be improved by various heating modes and combinations thereof; the superheat chamber is used for further heating of the steam.
In one aspect, the present invention provides a hydrogen production system, which uses the hydrogen production method, and comprises: steam generation portion, it is equipped with liquid induction pipe and steam discharging pipe, still includes: the heating cavity is provided with a heating cavity, and the heating cavity is communicated with the liquid introducing pipe; the first heating assembly is arranged in the heating cavity or sleeved outside the heating cavity; at least one hydrogen manufacturing portion, every hydrogen manufacturing portion is equipped with steam inlet tube and hydrogen eduction tube, the steam inlet tube intercommunication the steam discharge pipe, hydrogen manufacturing portion still includes: the hydrogen reaction cavity is communicated with the steam leading-in pipe and the hydrogen leading-out pipe, and a hydrogen production catalyst is arranged in the hydrogen reaction cavity; the second heating assembly is arranged in the hydrogen reaction cavity or sleeved outside the hydrogen reaction cavity; wherein the first heating component is the hot exhaust gas and/or a catalytic combustion mode and/or the electric heater; the second heating component adopts an electric heater and/or a hot exhaust gas heating and/or catalytic combustion mode.
The technical effect achieved after the technical scheme is adopted is as follows: the heating cavity is used for heating steam reaction liquid to generate steam, the heating cavity is used for further heating the steam, the hydrogen production part is used for the steam to react in the hydrogen production catalyst to generate hydrogen, and the second heating assembly is used for providing reaction temperature.
In one embodiment of the invention, the number of the hydrogen production parts is two, the number of the steam generation parts is one, and two hydrogen production parts are arranged on two sides of each steam generation part; or the hydrogen production part is sleeved outside the steam generation part or the steam generation part is sleeved outside the hydrogen production part.
The technical effect achieved after the technical scheme is adopted is as follows: the two hydrogen production parts can improve the hydrogen production efficiency; the single hydrogen production part and the steam generation part are in sleeved relation, so that space can be saved.
In one embodiment of the present invention, the second heating assembly is heated by an electric heater, and comprises: and one end of each second electric heating rod is connected with the end part of the hydrogen reaction cavity, and the other end of each second electric heating rod extends into the hydrogen reaction cavity.
The technical effect achieved after the technical scheme is adopted is as follows: the electric heating rod can stably heat and provide stable reaction conditions for hydrogen production reaction.
In one embodiment of the present invention, the hydrogen producing part further comprises: the hydrogen production buffer cavity is arranged at the end part of the hydrogen reaction cavity and is communicated with the hydrogen reaction cavity and the steam leading-in pipe; the hydrogen production buffer plate is arranged between the hydrogen production buffer cavity and the hydrogen reaction cavity, a plurality of hydrogen through holes and a plurality of electric heater through holes are arranged, and each electric heater through hole is internally provided with one second electric heating rod.
The technical effect achieved after the technical scheme is adopted is as follows: the hydrogen production buffer plate can enable hydrogen to be filled in the hydrogen production buffer cavity and then uniformly penetrate through the hydrogen production buffer plate to enter the hydrogen reaction cavity for reaction, so that the reaction of steam is more complete.
In one embodiment of the invention, the second heating assembly is a hot exhaust gas heating, comprising: a second hot exhaust gas pipeline, the end part of which is provided with a second exhaust gas output pipeline, and the other end of which is provided with a second hot exhaust gas input pipeline; the first heat accumulator is arranged in the hot waste gas pipeline, and the first heat accumulator is sleeved outside the hydrogen reaction cavity or stacked in the hot waste gas pipeline in a mode of adopting a plurality of heat accumulation balls/a plurality of heat accumulation blocks.
The technical effect achieved after the technical scheme is adopted is as follows: the high temperature of hot waste gas can be utilized in the heating of hot waste gas, the energy saving, first heat accumulator can absorb the heat of hot waste gas, improves thermal utilization ratio, further heats hot waste gas.
In one embodiment of the present invention, the first heating assembly is heated by catalytic combustion, and comprises: the catalytic combustion channel is internally provided with a combustion catalyst and is provided with a hot waste gas outlet, a tail gas inlet and/or a methanol inlet; wherein the catalytic combustion channel is tubular, and the heating cavity is positioned outside the catalytic combustion channel; or the heating cavity is tubular, and the catalytic combustion channel is positioned outside the heating cavity.
The technical effect achieved after the technical scheme is adopted is as follows: the combustion catalyst reacts with the tail gas to generate heat, so that the chemical energy of the tail gas is effectively utilized, and the energy is saved.
In one embodiment of the present invention, the steam generation part further includes: a superheating portion comprising: the steam pipeline is a bent or straight pipe, one end of the steam pipeline is communicated with the heating cavity, and the other end of the steam pipeline is communicated with the steam discharge pipe; the superheating cavity is arranged outside the steam pipeline and communicated with the hot waste gas outlet, and is provided with a second heat accumulator which can be a plurality of heat accumulation balls or a plurality of heat accumulation blocks; and the waste gas outlet is communicated with the overheating cavity.
The technical effect achieved after the technical scheme is adopted is as follows: the steam pipeline is bent, so that the heat exchange area can be increased, and the heating effect of the overheating cavity on steam in the steam pipeline is improved; the steam pipeline is vertical, and an electric heating pipe can be additionally arranged in the steam pipeline to further heat steam; the second heat storage body is used for absorbing heat of hot exhaust gas and transferring the heat to steam.
In one embodiment of the present invention, the first heating assembly further comprises: the first electric heating pipe is arranged on the top surface or the side surface of the end part of the steam generating part and communicated with the heating cavity.
The technical effect achieved after the technical scheme is adopted is as follows: the catalytic combustion channel is tubular, and when the heating cavity is arranged outside the catalytic combustion channel, the first electric heating pipe is arranged on the side surface of the steam generating part and can directly heat the heating cavity; the heating cavity is tubular, when the catalytic combustion channel is arranged outside the catalytic combustion channel, the first electric heating pipe is arranged at the top of the steam generating part and can directly heat the heating cavity.
In one embodiment of the invention, the first heating assembly is a hot exhaust gas heating, comprising: at least one first hot exhaust gas conduit; wherein the heating chamber is at least one heating duct arranged in parallel with the first hot exhaust duct.
The technical effect achieved after the technical scheme is adopted is as follows: the heating cavity is uniformly heated by the hot waste gas through the second hot waste gas pipeline.
In summary, the above embodiments of the present application may have one or more of the following advantages or benefits: i) The hydrogen production part or the steam generation part is heated by hot waste gas, so that the high temperature of the hot waste gas can be effectively utilized, and energy is saved; ii) the steam generating part is heated by catalytic combustion of the exhaust gas, so that the chemical energy of the exhaust gas can be effectively utilized; iii) The hydrogen production part or the steam generation part is heated by an electric heating rod, so that constant temperature can be provided, the steam generation part can uniformly release steam, and the hydrogen production part can uniformly generate hydrogen; iv) the hydrogen production buffer plate can enable hydrogen to uniformly penetrate through the hydrogen production buffer plate and enter the hydrogen reaction cavity for reaction after the hydrogen production buffer cavity is filled with hydrogen, so that the reaction of steam is more complete.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a hydrogen production method according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a first hydrogen production system 100 according to a second embodiment of the present invention.
Fig. 3 is a schematic structural view of hydrogen-producing part 120 in fig. 2.
Fig. 4 is a schematic structural view of the steam generating part 110 in fig. 2.
Fig. 5 is a schematic structural diagram of a second hydrogen production system 100 according to a third embodiment of the present invention.
Fig. 6 is a schematic structural view of second hydrogen-producing region 120 in fig. 5.
Fig. 7 is a schematic diagram of a third hydrogen production system 100 according to a fourth embodiment of the present invention.
Fig. 8 is a schematic diagram of a fourth hydrogen production system 100 according to a fifth embodiment of the present invention.
Fig. 9 is a schematic diagram of the configuration of another hydrogen production system 100 of fig. 8.
Description of the main element symbols:
100 is a hydrogen production system; 110 is a steam generating part; 111 is a liquid inlet pipe; 112 is a steam discharge pipe; 113 is a heating cavity; 114 is a first heating element; 115 is a second hot exhaust gas conduit; 116 is a second hot exhaust gas input conduit; 117 is a second exhaust gas outlet conduit; 120 is a hydrogen producing part; 121 is a steam leading-in pipe; 122 is a hydrogen gas delivery pipe; 123 is a first exhaust gas outlet pipe; 124 is a first hot exhaust gas input conduit; 125 is a first heat accumulator; 126 is a first hot exhaust gas conduit; 127 is a hydrogen reaction chamber; 128 is a second heating element; 129 is a catalyst charging port; 131 is a catalytic combustion channel; 131a is a tail gas inlet; 131b is a hot exhaust gas outlet; 132 is a second electric heating tube; 133 is a hydrogen production buffer plate; 134 is a hydrogen production buffer cavity; 140 is a superheating part; 141 is a steam pipeline; 142 is a overheating cavity; 143 is an exhaust outlet; 144 is a first electric heating tube; 145 is a steam header; and 146 is a reservoir.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a schematic flow chart of a hydrogen production method according to a first embodiment of the present invention is shown. The hydrogen production method comprises the following steps:
step S10: introducing a steam reaction liquid: introducing the steam reaction liquid into a heating cavity;
step S20: heating the steam reaction liquid: heating the steam reaction liquid through the heating cavity to obtain steam;
step S30: superheating the steam: reheating the steam in a superheating cavity to obtain superheated steam;
step S40: introducing the superheated steam: introducing the superheated steam into a hydrogen production part;
step S50: preparing hydrogen: the superheated steam contacts with a hydrogen production catalyst in the hydrogen production part and is heated at the same time, so that the superheated waste gas reacts to generate hydrogen.
Wherein the heating cavity and the overheating cavity can both heat the steam reaction liquid by hot waste gas and/or an electric heater and/or a catalytic combustion mode; the hydrogen-producing section may heat the steam by an electric heater and/or hot exhaust gas.
Specifically, in step S20, after the steam reaction liquid is introduced into the heating cavity, the heating cavity may perform a tail gas catalytic combustion reaction through a catalytic combustion channel to provide heat for the steam reaction liquid; an electric heater communicated with the heating part can also be arranged to provide heat for the steam reaction liquid; a hot waste gas channel can also be arranged, and hot waste gas is introduced to waste the steam reaction liquid to provide heat.
Specifically, in step S30, steam is introduced into a steam channel in the superheat chamber, hot exhaust gas is introduced into the superheat chamber outside the steam channel, the hot exhaust gas transfers heat to a heat accumulator in the superheat chamber, and the heat accumulator transfers heat to the steam in the steam pipe; the steam is further heated in the steam channel or the overheating cavity by an electric heater.
Specifically, in step S50, hydrogen is introduced into the hydrogen reaction chamber to react, and meanwhile, the outside of the hydrogen reaction chamber may be heated by the hot exhaust gas pipe, and the heat accumulator is sleeved outside the hydrogen reaction chamber to conduct heat; a plurality of electric heating rods or tail gas catalytic combustion channels can also be inserted into the hydrogen reaction cavity, and heat is provided for hydrogen production reaction through the electric heating rods or the tail gas catalytic combustion channels; and the hydrogen is generated and then is led out from a hydrogen discharge pipe communicated with the hydrogen reaction cavity.
[ second embodiment ]
Referring to fig. 2, a schematic structural diagram of a hydrogen production system 100 according to a second embodiment of the present invention is shown. The hydrogen production system 100 includes: a steam generating part 110 and two hydrogen producing parts 120, wherein the two hydrogen producing parts 120 are respectively positioned at two opposite sides of the steam generating part 110. The hydrogen production section 120 is provided with a vapor introduction pipe 121 and a hydrogen gas discharge pipe 122, the vapor generation section 110 is provided with a liquid introduction pipe 111 and a vapor discharge pipe 112, and the vapor introduction pipe 121 communicates with the vapor discharge pipe 112.
Specifically, referring to fig. 3, hydrogen-producing section 120 further includes, for example: a hydrogen reaction chamber 127 communicating the steam inlet pipe 121 and the hydrogen outlet pipe 122 and having a hydrogen production catalyst therein; the second heating element 128 is sleeved outside the hydrogen reaction chamber 127. The top of the hydrogen production part 120 extends out of the top of the second heating assembly 128, the bottom of the hydrogen production part 120 extends out of the bottom of the second heating assembly 128, the steam inlet pipe 121 is communicated with the top of the hydrogen production part 120, and the hydrogen outlet pipe 122 is communicated with the bottom of the hydrogen production part 120.
Preferably, the second heating assembly 128 is a hot exhaust gas heating system, comprising: a second hot exhaust gas duct 115 having a second exhaust gas output duct 117 at an end thereof and a second hot exhaust gas input duct 116 at the other end thereof; the first heat accumulator 125 is disposed in the second hot exhaust gas pipe 115, and the first heat accumulator 125 is sleeved outside the hydrogen reaction chamber 127.
Specifically, referring to fig. 4, the steam generation unit 110 further includes, for example: a heating chamber 113 communicating the liquid introduction tube 111 and the steam discharge tube 112; the first heating element 114 is sleeved outside the heating cavity 113. Wherein the top of the heating cavity 113 extends out of the top of the first heating assembly 114, the bottom of the heating cavity 113 extends out of the bottom of the first heating assembly 114, the steam introducing pipe 121 is communicated with the top of the heating cavity 113, and the steam discharging pipe 112 is communicated with the bottom of the heating cavity 113. Wherein the heating cavity 113 is at least one heating duct, which is arranged in parallel with the second hot exhaust duct 115.
Further, the steam generation unit 110 includes, for example: a vapor header 145 and a liquid reservoir 146. The steam header 145 is positioned at the top of the heating cavity 113 and is communicated with the steam discharge pipe 112; the liquid tank 146 communicates with the bottom of the heating chamber 113 and with the liquid introduction pipe 111.
Preferably, the first heating assembly 114 is a hot exhaust heating system, and includes: at least one first hot exhaust gas pipe 126 having a first exhaust gas outlet pipe 123 at the top thereof and a first hot exhaust gas inlet pipe 124 at the bottom thereof; and a heat storage body (not shown) stacked in the first exhaust gas output pipe 123 in the form of a heat storage block.
Preferably, the steam generating part 110 is externally provided with a vacuum insulated housing (not shown) for reducing heat dissipation from the heating cavity 113.
Preferably, with reference to fig. 2, the first hot exhaust gas input conduit 124 is in communication with the second hot exhaust gas input conduit 116, and the first exhaust gas output conduit 123 is in communication with the second exhaust gas output conduit 117; the steam inlet pipes 121 of the two hydrogen producing sections 120 are communicated with each other, and the hydrogen outlet pipes 122 of the two hydrogen producing sections 120 are communicated with each other.
[ third embodiment ] A
Referring to fig. 5, a schematic structural diagram of a second hydrogen production system 100 according to a third embodiment of the present invention is shown. Which is different from the first hydrogen production system 100 according to the second embodiment of the present invention in that the number of hydrogen production parts 120 is one, wherein the hydrogen production part 120 is located at the side of the steam generation part 110.
Specifically, referring to fig. 6, the second heating element 128 is a plurality of second hot exhaust conduits 115 passing through the hydrogen reaction chamber 127; the top of the second hot exhaust gas pipes 115 is connected to the second exhaust gas output pipe 117, and the bottom of the second hot exhaust gas pipes 128a is connected to the second hot exhaust gas input pipe 116, wherein the second exhaust gas output pipe 117 extends out of the top of the hydrogen production part 120, and the second hot exhaust gas input pipe 116 extends out of the bottom of the hydrogen production part 120.
Further, a heat conduction fin is wound around the outer circumference of the second hot exhaust gas pipe 115, and the heat conduction fin is used for increasing the contact area between the hydrogen production catalyst and the second hot exhaust gas pipe 115, so that the hydrogen production reaction efficiency is improved.
Preferably, steam introduction pipe 121 is provided on the side of hydrogen production unit 120 near the top, and hydrogen discharge pipe 122 is provided on the side of hydrogen production unit 120 near the bottom. Wherein, the lateral surface of the outer side of the hydrogen production part 120 is further provided with a catalyst feed port 129 which is communicated with the hydrogen reaction chamber 127 and used for adding the hydrogen production catalyst.
[ fourth example ] A
Referring to fig. 7, a schematic diagram of a third hydrogen production system 100 according to a fourth embodiment of the present invention is shown. The difference between the second hydrogen production system 100 according to the third embodiment of the present invention is that the steam generation part 110 is sleeved outside the hydrogen production part 120.
Specifically, the heating cavity 113 adopts a heating mode combining tail gas heating and an electric heating tube. Wherein, the heating cavity 113 includes a catalytic combustion channel 131, which is provided with a hot exhaust gas outlet 131b, an exhaust gas inlet 131a and/or a methanol inlet, and a combustion catalyst (not shown in the figure) is provided therein; the catalytic combustion channel 131 is straight and the heating chamber 113 is located outside the catalytic combustion channel 131. Combustible tail gas is introduced into the tail gas inlet 121a, and the tail gas reacts with the combustion catalyst to release heat so as to heat the steam reaction liquid in the heating cavity 113. In addition, the catalytic combustion channel 131 and the bottom surface of the heating cavity 113 can be connected by screw threads, so that the catalytic combustion channel 131 can be conveniently detached to replace the combustion catalyst.
Further, the heating cavity 113 further comprises a first electric heating pipe 144, which is disposed on the top surface or the side surface of the end portion of the steam generating portion 110 and is communicated with the heating cavity 113, and the first electric heating pipe 144 and the catalytic combustion channel 131 heat the steam reaction liquid in the heating cavity 113 together.
Preferably, the steam generating part 110 further includes a superheating part 140 disposed at the top of the heating chamber 113, including: a steam pipe 141, a superheat chamber 142 and an exhaust gas outlet 143. Wherein, the steam pipeline 141 is curved, one end is communicated with the heating cavity 113, and the other end is communicated with the steam discharge pipe 112; the overheating cavity 142 is arranged outside the steam pipeline 141 and is communicated with the hot waste gas outlet 131b, and the overheating cavity 142 is provided with a second heat accumulator which can be a plurality of heat accumulation balls or a plurality of heat accumulation blocks; and an exhaust gas outlet 143 which communicates with the superheat chamber 142.
Specifically, a steam pipe 141, such as a coil, is disposed around hydrogen-producing section 120. The superheating portion 140 is further provided with at least one first electric heating pipe 144, for example, and the first electric heating pipe 144 is connected to the top of the superheating portion 140 and uniformly surrounds the heating cavity 113. Wherein the first electric heating pipe 144 heats the second heat storage body, through which heat is transferred to the steam pipe 141.
Preferably, hydrogen-producing part 120 is electrically heated, and includes at least one second electric-heating tube 132 connected to an end of hydrogen-producing part 120. When the hydrogen production part 120 is vertically placed, the second electric heating tube 132 is connected to the top of the hydrogen production part 120, the terminal of the second electric heating tube extends out of the top of the hydrogen production part 120, and the other end of the second electric heating tube extends into the hydrogen reaction chamber 127 to provide reaction temperature for hydrogen production reaction. When the hydrogen production part 120 is horizontally placed, the second electric heating tube 132 is connected to the left or right end of the hydrogen production part 120, and the opposite right or left end extends into the hydrogen reaction chamber 127.
Hydrogen-producing section 120 further includes a hydrogen-producing buffer plate 133 and a hydrogen-producing buffer chamber 134. The hydrogen production buffer cavity 133 is used for buffering steam entering the hydrogen reaction cavity 127, and after the hydrogen production buffer cavity 133 is filled with steam, the steam can uniformly penetrate through the hydrogen production buffer plate 134 and uniformly react with the hydrogen production catalyst in the hydrogen reaction cavity 127. Wherein, the hydrogen production buffer chamber 133 is arranged at the top of the hydrogen reaction chamber 127 and communicates the hydrogen reaction chamber 127 and the steam inlet pipe 121; the hydrogen production buffer plate 134 is arranged between the hydrogen production buffer cavity 133 and the hydrogen reaction cavity 127, a plurality of electric heating pipe through holes and a plurality of steam through holes are arranged on the hydrogen production buffer plate 134, and the second electric heating pipes 132 penetrate through the hydrogen production buffer cavity 133 and the electric heating pipe through holes on the hydrogen production buffer plate 134.
[ fifth embodiment ]
Referring to fig. 8-9, a schematic diagram of a fourth hydrogen production system 100 according to a fifth embodiment of the present invention is shown. Which differs from the third hydrogen production system 100 provided in the fourth embodiment of the present invention in that the steam line 141 is vertical. The steam generating unit 110 further includes a steam header 145 disposed on the top of the superheating unit 140 and communicating with one end of the steam pipe 141 away from the heating chamber 113, and a side surface of the steam header 145 communicates with the steam discharge pipe 112.
Specifically, the steam pipe 141 may be a plurality of straight pipes uniformly arranged in the superheat chamber 142. Each of the first electric heating pipes 144 is disposed in any one of the straight pipes, is fixed to the top of the superheating chamber 142, and directly heats steam in the straight pipe.
Further, referring to fig. 8, in the heating section, the heating chamber 113 is, for example, a straight pipe shape, and the catalytic combustion passage 131 is provided outside the heating chamber 113. Wherein, the first electric heating pipe 144 is arranged in different lengths, that is, a part of the first electric heating pipe 144 extends from the top of the superheating chamber 142 to the heating chamber 113, and a part of the first electric heating pipe 144 extends from the top of the superheating chamber 142 to the steam pipeline 141. At this time, the bottom of the heating chamber 113 is communicated with the liquid storage chamber 146, and the liquid storage chamber 146 is communicated with the liquid introduction pipe 111 for spring training of the steam reaction liquid.
Further, referring to fig. 9, in the heating portion, the catalytic combustion passage 131 is, for example, a straight pipe shape, and in this case, the heating chamber 113 is provided outside the catalytic combustion passage 131. Wherein, all the first electric heating pipes 144 have the same length and extend into the steam pipe 141.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A hydrogen production system, comprising:
steam generation portion, it is equipped with liquid inlet tube and steam discharging pipe, still includes:
the heating cavity is provided with a heating cavity communicated with the liquid introducing pipe;
the first heating assembly is arranged in the heating cavity or sleeved outside the heating cavity;
at least one hydrogen manufacturing portion, every hydrogen manufacturing portion is equipped with steam inlet tube and hydrogen eduction tube, the steam inlet tube intercommunication the steam discharging pipe, hydrogen manufacturing portion still includes:
the hydrogen reaction cavity is communicated with the steam leading-in pipe and the hydrogen leading-out pipe, and a hydrogen production catalyst is arranged in the hydrogen reaction cavity;
the second heating assembly is arranged in the hydrogen reaction cavity or sleeved outside the hydrogen reaction cavity;
wherein the first heating component is a hot waste gas and/or a catalytic combustion mode and/or an electric heater; the second heating component adopts an electric heater and/or a hot waste gas heating and/or catalytic combustion mode;
the first heating element is heated in a catalytic combustion mode and comprises: the catalytic combustion channel is internally provided with a combustion catalyst and is provided with a hot waste gas outlet, a tail gas inlet and/or a methanol inlet; wherein the catalytic combustion channel is tubular, and the heating cavity is positioned outside the catalytic combustion channel; or the heating cavity is tubular, and the catalytic combustion channel is positioned outside the heating cavity;
the steam generation part further includes:
a superheating portion comprising: the steam pipeline is a bent or straight pipe, one end of the steam pipeline is communicated with the heating cavity, and the other end of the steam pipeline is communicated with the steam discharge pipe; the overheating cavity is arranged outside the steam pipeline and communicated with the hot waste gas outlet, the overheating cavity is provided with a second heat accumulator, and the second heat accumulator can be a plurality of heat accumulation balls or a plurality of heat accumulation blocks; and the waste gas outlet is communicated with the overheating cavity.
2. The hydrogen generation system of claim 1, wherein there are two hydrogen generation parts, one steam generation part, and one hydrogen generation part on each of both sides of the steam generation part;
or the hydrogen production part is sleeved outside the steam generation part or the steam generation part is sleeved outside the hydrogen production part.
3. The hydrogen production system of claim 2, wherein the second heating assembly is an electric heater heating comprising:
and one end of each second electric heating rod is connected with the end part of the hydrogen reaction cavity, and the other end of each second electric heating rod extends into the hydrogen reaction cavity.
4. The hydrogen-producing system of claim 3, further comprising:
the hydrogen production buffer cavity is arranged at the end part of the hydrogen reaction cavity and is communicated with the hydrogen reaction cavity and the steam leading-in pipe;
the hydrogen production buffer plate is arranged between the hydrogen production buffer cavity and the hydrogen reaction cavity, a plurality of hydrogen through holes and a plurality of electric heater through holes are arranged, and each electric heater through hole is internally provided with one second electric heating rod.
5. The hydrogen generation system of claim 2, wherein the second heating assembly is a hot exhaust heating comprising:
a second hot exhaust gas pipeline, the end part of which is provided with a second exhaust gas output pipeline, and the other end of which is provided with a second hot exhaust gas input pipeline;
the first heat accumulator is arranged in the hot waste gas pipeline, and the first heat accumulator is sleeved outside the hydrogen reaction cavity or stacked in the hot waste gas pipeline in a mode of adopting a plurality of heat accumulation balls/a plurality of heat accumulation blocks.
6. The hydrogen production system of claim 1, wherein the first heating assembly further comprises:
the first electric heating pipe is arranged on the top surface or the side surface of the end part of the steam generating part and communicated with the heating cavity.
7. The hydrogen generation system in accordance with any of claims 1-5, wherein the first heating assembly is a hot exhaust heating comprising:
at least one first hot exhaust gas conduit;
wherein the heating cavity is at least one heating pipeline which is arranged in parallel with the first hot exhaust pipeline.
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| CN202011437145 | 2020-12-10 | ||
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| CN202110011979.2A Pending CN112624048A (en) | 2020-12-10 | 2021-01-06 | Hydrogen production device |
| CN202110015538.XA Pending CN112661110A (en) | 2020-12-10 | 2021-01-07 | Hydrogen production system |
| CN202120027271.1U Active CN214734505U (en) | 2020-12-10 | 2021-01-07 | Hydrogen production system |
| CN202110032838.9A Active CN112902127B (en) | 2020-12-10 | 2021-01-11 | Hydrogen production method and hydrogen production system |
| CN202120081201.4U Active CN214360253U (en) | 2020-12-10 | 2021-01-13 | Hydrogen production device |
| CN202110040857.6A Active CN112794285B (en) | 2020-12-10 | 2021-01-13 | Hydrogen production method and hydrogen production system |
| CN202120081014.6U Active CN215326929U (en) | 2020-12-10 | 2021-01-13 | Hydrogen production device |
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| CN202110015538.XA Pending CN112661110A (en) | 2020-12-10 | 2021-01-07 | Hydrogen production system |
| CN202120027271.1U Active CN214734505U (en) | 2020-12-10 | 2021-01-07 | Hydrogen production system |
| CN202110032838.9A Active CN112902127B (en) | 2020-12-10 | 2021-01-11 | Hydrogen production method and hydrogen production system |
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| CN112794285A (en) | 2021-05-14 |
| CN214734505U (en) | 2021-11-16 |
| CN112902127B (en) | 2023-02-28 |
| CN214360253U (en) | 2021-10-08 |
| CN112902127A (en) | 2021-06-04 |
| CN112661110A (en) | 2021-04-16 |
| CN112624048A (en) | 2021-04-09 |
| CN214399817U (en) | 2021-10-15 |
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Effective date of registration: 20231229 Address after: Building 1, Unit 1, 2nd Floor, No. 112-1 Hongqiao Street, High tech Zone, Neijiang City, Sichuan Province, 641000, No. 21 BC Zone Patentee after: Sichuan Woyouda Technology Co.,Ltd. Address before: No.404, building 14, new town entrepreneurship center, Zengcheng low carbon headquarters park, No.400 Xincheng Avenue, Zengcheng District, Guangzhou, Guangdong Province Patentee before: Guangdong alcohol hydrogen New Energy Research Institute Co.,Ltd. |