CN215112519U - Hydrogen production system - Google Patents
Hydrogen production system Download PDFInfo
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- CN215112519U CN215112519U CN202120054864.7U CN202120054864U CN215112519U CN 215112519 U CN215112519 U CN 215112519U CN 202120054864 U CN202120054864 U CN 202120054864U CN 215112519 U CN215112519 U CN 215112519U
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 205
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 202
- 239000001257 hydrogen Substances 0.000 title claims abstract description 202
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 239000002912 waste gas Substances 0.000 claims abstract description 74
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 238000000746 purification Methods 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000001802 infusion Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 103
- 238000001179 sorption measurement Methods 0.000 claims description 34
- 239000003054 catalyst Substances 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 16
- 239000002808 molecular sieve Substances 0.000 claims description 9
- 238000005338 heat storage Methods 0.000 claims description 7
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 19
- 239000012495 reaction gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000001914 filtration Methods 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The embodiment of the utility model discloses hydrogen production system, include: a steam generator, which is provided with a steam generator inside; the hydrogen generator is internally provided with a waste gas transmission channel; the steam generator is communicated with the hydrogen generator through the steam conveying pipe; steam generator includes the feed liquor collection box, the feed liquor collection box includes: the first flange plate is arranged at the bottom of the waste gas heating cylinder; the second flange plate is provided with an infusion inlet, the first flange plate and the second flange plate are connected in a matched mode to form a liquid inlet collection box, and the liquid inlet collection box is communicated with an infusion tube through the infusion inlet; and the purification device is communicated with the hydrogen generator and is used for purifying the hydrogen generated by the hydrogen generator. The embodiment has realized through setting up the small feed liquor chamber that the flange formed, when satisfying the feed liquor demand, dwindles steam generating device's size as far as, reduces area and the hydrogen purification that hydrogen reaction unit produced.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field especially relates to a hydrogen production system.
Background
With the limited nature of conventional energy and the increasing prominence of environmental issues, new energy with the characteristics of environmental protection and regeneration is gaining more and more attention from various countries. With the limited nature of conventional energy and the increasing prominence of environmental issues, new energy with the characteristics of environmental protection and regeneration is gaining more and more attention from various countries. In the research of various new energy sources, hydrogen is the first choice of researchers in a completely clean combustion mode and with the advantage of being renewable.
However, in the existing hydrogen production device for producing hydrogen by reacting steam with a hydrogen production catalyst, steam is generated by heating a steam generation medium, a large amount of electricity is consumed, the cost is increased, the steam generation medium is liquid such as methanol, and factory waste gas contains a large amount of heat, which is directly discharged into the air to cause heat waste, and the waste of energy is caused because the heat of the waste gas is not recycled; in addition, the traditional steam generator for generating steam of the hydrogen production device has larger capacity and pressure, occupies more space resources, needs to meet the requirements of a pressure container, and is more complex in acceptance and periodic inspection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydrogen production system effectively solves and does not have among the current hydrogen plant to carry out recycle to the heat of waste gas, has caused the extravagant problem of the energy, and through the small feed liquor chamber that sets up the flange formation, when satisfying the feed liquor demand, dwindles vapour generating device's size as far as, reduces area, in addition, can also reduce its capacity, makes its capacity pressure reduce, reduces the number of times of periodic check.
In the hydrogen production system provided by the embodiment of the utility model, the steam generator is internally provided with a steam generating cavity, the outside of the steam generator is sleeved with a waste gas heating cylinder, and a waste gas channel is formed between the waste gas heating cylinder and the steam generator; the waste gas heating cylinder is provided with a waste gas input port and a waste gas output port which are communicated with the waste gas channel; the hydrogen generator is internally provided with a waste gas transmission channel; the steam generator is communicated with the hydrogen generator through the steam conveying pipe; steam generator includes the feed liquor collection box, the feed liquor collection box includes: the first flange plate is arranged at the bottom of the waste gas heating cylinder; the second flange plate is provided with an infusion inlet, the first flange plate and the second flange plate are connected in a matched mode to form a liquid inlet collection box, and the liquid inlet collection box is communicated with an infusion tube through the infusion inlet; the purification device is communicated with the hydrogen generator and is used for purifying the hydrogen generated by the hydrogen generator; the waste gas heating part is communicated with waste gas, and the waste gas can heat the steam generator and/or the hydrogen generator.
The technical effect achieved after the technical scheme is adopted is as follows: the waste gas is heated in the steam generator in an auxiliary mode to generate steam, the steam generation efficiency is improved, meanwhile, the steam is heated in the hydrogen generator when reacting with a hydrogen production catalyst, the reaction rate is improved, the two flange plates form a liquid storage cavity, the liquid storage capacity of the liquid storage cavity is smaller than that of a national standard, a steam generation medium required by the generated steam is stored conveniently, the overall occupied space size and the capacity are reduced, the checking times of a pressure container are reduced, and pure hydrogen can be obtained through purification of a purification device.
In one embodiment of the present invention, the purification apparatus comprises: the gas-liquid separation tank is provided with a hydrogen inlet and a hydrogen outlet, the hydrogen inlet is connected with the hydrogen output pipe, and the hydrogen generation space is communicated with the hydrogen output pipe; the purification adsorption tower is provided with a hydrogen input port, a purified hydrogen outlet and a tail gas outlet, and the hydrogen input port is connected with the hydrogen outlet through a pipeline; the tail gas collecting tank is connected with the tail gas outlet through a pipeline; and the purified hydrogen storage tank is connected with the purified hydrogen outlet through a pipeline.
The technical effect achieved after the technical scheme is adopted is as follows: the purification device can obtain high-purity hydrogen through purification modes of gas-liquid separation, hydrogen purification and adsorption, tail gas collection and hydrogen storage.
In an embodiment of the present invention, a hydrogen filter is disposed in the purification adsorption tower, and the hydrogen filter separates the interior of the purification adsorption tower into a hydrogen accommodating space to be purified and a purified hydrogen accommodating space.
The technical effect achieved after the technical scheme is adopted is as follows: and a hydrogen filter is arranged in the purification adsorption tower and divides the interior of the purification adsorption tower into a hydrogen accommodating space to be purified and a purified hydrogen accommodating space.
In an embodiment of the present invention, Al is sequentially disposed in the hydrogen filter2O3Molecular sieves, zeolite molecular sieves, and carbon molecular sieves.
The technical effect achieved after the technical scheme is adopted is as follows: specifically, the structure for purifying hydrogen in the hydrogen filter is described, and impurities are filtered from hydrogen by layering the Al2O3 molecular sieve, the zeolite molecular sieve and the carbon molecular sieve.
In an embodiment of the present invention, the first flange and/or the second flange are recessed at a middle portion thereof to form a cavity, and the cavity constitutes the inlet header.
The technical effect achieved after the technical scheme is adopted is as follows: the concave cavity is formed by the middle of the first flange plate and/or the second flange plate, so that a liquid storage cavity can be formed in the whole equipment without adding a new structure, and on one hand, the cost is saved; on the other hand, the volume of the concave cavity formed by the concave flange plate is small, so that the solution can be circularly heated after directly entering the concave cavity, the volume of the whole equipment is further reduced, a pressure container is not formed, and the inspection times are reduced.
In an embodiment of the present invention, the feed liquid header is provided with a first heater therein and is provided with at least one first opening communicating with the steam generator, the steam generator includes: the steam part is provided with a steam accommodating cavity, a second opening communicated with the steam accommodating cavity and a steam outlet; wherein one side of the steam part, on which the second opening is formed, is opposite to one side of the liquid inlet header, on which the first opening is formed; at least one vapor transmission channel communicating the at least one first opening and the at least one second opening.
Adopt the technological effect that reaches behind this technical scheme, through be in the feed liquor header is equipped with first heater, when the temperature of waste gas heating, when the speed that makes vapour produce is slower, the accessible is opened first heater makes the production rate of vapour reach normally to this reaction efficiency who improves hydrogen.
In an embodiment of the present invention, the steam generator further includes: the steam generator further comprises: the first cavity, the second cavity and the third cavity are sequentially arranged between the liquid inlet collection box and the steam part at intervals; the waste gas inlet is communicated with the first cavity, and the waste gas outlet is communicated with the third cavity; and a heat storage assembly is arranged in the second cavity.
The technical effect achieved after the technical scheme is adopted is as follows: the exhaust gas heating device is characterized in that at least one porous baffle plate is arranged in the exhaust gas heating cylinder, exhaust gas needs to pass through the porous baffle plate, the porous baffle plate enables the exhaust gas to uniformly enter the second cavity from the first cavity, the exhaust gas in the second cavity is uniformly distributed, a steam generation medium can be uniformly heated, the generation rate of steam is increased, and therefore the generation rate of hydrogen is increased.
In an embodiment of the present invention, the exhaust gas heating cylinder is sleeved outside the at least one vapor transmission channel and connected between the inlet liquid header and the vapor part; wherein the exhaust gas passage is formed between the inner wall of the exhaust gas heating cartridge and the at least one vapor transfer passage.
The technical effect achieved after the technical scheme is adopted is as follows: introducing waste gas into the waste gas channel, so that the high-temperature waste gas can heat the steam transmission channel; and a waste gas heating cylinder sleeve is arranged outside, so that the loss of waste gas heat is reduced.
In an embodiment of the present invention, the steam generator further comprises: the second heater is arranged in the steam accommodating cavity; the second heater comprises at least one second heating element; at least one of the second heating elements is disposed in each of the second openings and extends into the corresponding vapor transmission passage.
The technical effect achieved after the technical scheme is adopted is as follows: the second heater increases the temperature of the steam, and prevents the steam from having insufficient temperature and entering the hydrogen generator, which causes the reaction efficiency with the hydrogen production catalyst to be reduced; the second heater can enable the temperature of the steam to reach an overheating level, and can adjust the temperature of the steam according to the temperature level required by the hydrogen production catalyst, so that the steam is heated to the required temperature, and the adaptability of the steam is improved.
In one embodiment of the present invention, the hydrogen generator includes: the hydrogen generating space is positioned in the hydrogen generator, wraps the waste gas transmission channel, is provided with a hydrogen production catalyst and is communicated with the steam conveying pipe, and steam input by the steam conveying pipe reacts under the action of the hydrogen production catalyst to generate hydrogen; and the hydrogen output pipe is communicated with the hydrogen generating space.
The technical effect achieved after the technical scheme is adopted is as follows: the hydrogen reaction part penetrates through the waste gas containing part and the waste gas containing part, so that the whole process of waste gas input to output is performed on the hydrogen reaction part, the heating cost is reduced, and the waste gas is recycled.
In summary, the above embodiments of the present application may have one or at least one of the following advantages or benefits: i) The heating cost is reduced, and the waste gas is recycled; ii) the overall hydrogen production efficiency is improved by the provision of at least one hydrogen reaction device; iii) a purification device is arranged in the hydrogen production system, so that relatively pure hydrogen can be obtained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hydrogen production system 400 according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the steam generator 100 and the hydrogen generating device 200 of fig. 1;
FIG. 3 is a schematic diagram of the steam generator 100 of FIG. 1;
fig. 4 is a schematic structural diagram of the liquid inlet header 110 formed by the first flange 111 and the second flange 112.
Fig. 5 is a schematic view of the connection of vapor generation cavity 120 to inlet header 110 of fig. 2.
Fig. 6 is a schematic sectional elevation view of the steam generator 100 of fig. 3.
Fig. 7 is a schematic structural view of the hydrogen generator 200.
Fig. 8 is a schematic structural diagram of the hydrogen generator 200 in fig. 7 viewed from the top.
Fig. 9 is a schematic diagram of the internal structure of the hydrogen generator 200 in fig. 7.
Fig. 10 is a schematic structural view of the purification apparatus 300 of fig. 1.
Fig. 11 is a schematic structural view of the gas-liquid separation tank 310 of fig. 10.
Fig. 12 is a sectional view taken in the direction B-B in fig. 11.
Fig. 13 is a schematic structural view of the purification adsorption column 320 in fig. 10.
Fig. 14 is a sectional view taken in the direction B-B in fig. 13.
Description of the main element symbols:
100 is a steam generator; 110 is a liquid inlet header; 111 is a first flange; 112 is a second flange plate; 113 is an infusion inlet; 120 is a vapor generating cavity; 121 is a steam part; 122 is a vapor transmission channel; 123 is a heat storage component; 124 is a porous barrier plate; 125 is a first cavity; 126 is a second cavity; 127 is an exhaust gas input cavity; 128 is a tail gas input cavity; 130 is an exhaust gas heating cylinder; 131 is a tail gas input opening; 132 is an exhaust gas outlet; numeral 133 denotes an exhaust gas inlet; 134 is a combustion catalyst input; 140 is a first heater; 150 is a second heater;
200 is a hydrogen generator; 201 is an exhaust gas transmission channel; 210 is a hydrogen generation space; 220 is a vapor delivery inlet; 230 is a hydrogen output pipe; 240 is an exhaust gas inlet; 250 is an exhaust gas outlet;
300 is a purification device; 301 is a hydrogen finished product delivery pipe; 310 is a gas-liquid separation tank; 311 is a dry hydrogen cavity; 312 is a reaction air cavity; 313 is a gas-liquid filter plate; 314 is a reaction gas drainage pipe; 315 is a reaction gas inlet; 320 is a purification adsorption tower; 321 is a hydrogen filtering cavity; 322 is a hydrogen finished product cavity; 323 is a tail gas separation plate; 330 is a tail gas collecting tank; 331 is a tail gas discharge pipe;
400 is a hydrogen production system; 410 is an exhaust gas input pipe; 420 is an exhaust gas output pipe; 430 is a vapor delivery tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
Specifically, referring to fig. 1, a hydrogen production system 400 according to a first embodiment of the present invention is provided. Hydrogen production system 400 includes, for example: the system comprises a steam generating device 100, a hydrogen reaction device 200 and a purifying device 300, wherein the steam generating device 100 is communicated with the hydrogen reaction device 200; the hydrogen output port 212 of the hydrogen reaction device 200 is communicated with the purification device 300.
Specifically, with reference to fig. 2 and 3, a steam generation cavity 120 is disposed inside the steam generator 100, a waste gas heating cylinder 130 is sleeved outside the steam generation cavity 120, a waste gas channel is formed between the waste gas heating cylinder 130 and the steam generation cavity 120, waste gas is introduced into the waste gas channel to flow, and the waste gas releases heat to heat the steam generation medium to generate steam. The exhaust gas heating cylinder 130 is provided with a tail gas input opening 131 and an exhaust gas output opening 132 which are communicated with the exhaust gas channel, the exhaust gas flows in from the tail gas input opening 131, and the exhaust gas is discharged from the exhaust gas output opening 132 after releasing heat in the steam generator 100.
Specifically, a waste gas transmission channel 201 is arranged in the hydrogen generator 200, and waste gas introduced into the waste gas transmission channel 201 heats the hydrogen production catalyst and steam in the reaction process, so that the temperature of the hydrogen production catalyst meets the hydrogen production requirement, the hydrogen production reaction rate is improved, and the cost is saved.
Further, the vapor delivery pipe 430 communicates the vapor generation cavity 120 with the hydrogen generator 200, and delivers the vapor generated in the vapor generation cavity 120 into the hydrogen generator 200 to supply the hydrogen generator 200 with the vapor required for generating hydrogen gas.
Specifically, referring to fig. 4, steam generator 100 includes a feed header 110, and feed header 110 includes: a first flange 111 and a second flange 112, wherein the first flange 111 is arranged at the bottom of the exhaust gas heating cylinder 130; the second flange 112 is provided with a transfusion inlet 113, the first flange 111 is connected with the second flange 112 in a matching way to form a liquid inlet header 110, and the liquid inlet header 110 is communicated with a transfusion pipe through the transfusion inlet 113. The first flange 111 and/or the second flange 112 are recessed at intermediate portions thereof to form a cavity, which forms the inlet header 110.
Preferably, the liquid inlet header 110 is a cavity with a liquid storage capacity smaller than 30L, so that a liquid storage cavity with a liquid storage capacity smaller than that of a national standard is realized, no provision is required, a steam generation medium required for generating steam is conveniently stored, but the size of the liquid storage capacity of the liquid inlet header 110 can be changed according to actual conditions, and the liquid inlet header is not limited herein.
Specifically, referring to fig. 5 and 6, the first heater 140 is further disposed in the liquid inlet header 110, and the liquid inlet header 110 is provided with at least one first opening communicated with the vapor generation cavity 120, and the vapor generation cavity 120 includes: a vapor portion 121 and at least one vapor transmission channel 122.
For example, the vapor generation medium entering the header 110 is heated and assisted by the exhaust gases to generate vapor that flows through the vapor transmission channels 122 to the vapor portion 121. The steam part 121 is provided with at least one second opening and a steam outlet. The second opening of the vapor part 121 is opposite to the first opening of the inlet header 110. Wherein the vapor transmission passage 122 communicates the first opening and the second opening.
Further, the vapor transmission passage 122 may be tubular as illustrated in fig. 6 and provided with at least one, both ends of which are inserted into the first opening and the second opening, respectively; vapor flows into the vapor transmission passage 122 through the second opening, flows through the vapor-receiving chamber, and exits the vapor outlet.
Further, the vapor transmission channel 122 communicates with the inlet header 110, and the vapor generating medium in the inlet header 110 flows into the vapor transmission channel 122 and is heated to generate vapor for transmission in the vapor transmission channel 122.
Further, the exhaust gas heating cylinder 130 is sleeved outside the vapor transmission channel 122 and connected between the liquid inlet header 110 and the vapor part 121, and the exhaust gas is wrapped between the exhaust gas heating cylinder 130 and the vapor transmission channel 122 and filled between the liquid inlet header 110 and the vapor part 121. The waste gas channel is formed between the inner wall of the waste gas heating cylinder 130 and the steam transmission channel 122, and waste gas is heated in the waste gas channel in an auxiliary manner to convert the steam generation medium into steam, so that the utilization rate of waste gas heat is improved, and the effect of waste utilization is achieved.
Preferably, hydrogen production system 400 further comprises: an exhaust gas input pipe 410. The exhaust gas input pipe 410 is communicated with the exhaust gas inlet 240 and the tail gas input opening 131, the exhaust gas is input into the exhaust gas through the exhaust gas inlet 240 and the tail gas input opening 131, and the exhaust gas can heat the steam generator 100 and the hydrogen generator 200 at the same time; the exhaust gas outlet pipe 420 is communicated to the exhaust gas outlet 250 and the exhaust gas outlet 132 of the exhaust gas transmission passage 201, and the exhaust gas after heat release is discharged through the exhaust gas outlet 250 and the exhaust gas outlet 132.
Specifically, the steam generator 100 further includes: at least one porous barrier plate 124. The porous baffle plate 124 is arranged in the waste gas heating cylinder 130, a waste gas input cavity 127, a second cavity 126 and a first cavity 125 are sequentially arranged between the liquid inlet header 110 and the steam part 121 at intervals, and the three cavities realize graded waste gas conveying and improve the heating efficiency.
Further, the tail gas input opening 131 is communicated with the waste gas input cavity 127, the waste gas output opening 132 is communicated with the first cavity 125, the heat storage component 123 is arranged in the second cavity 126, the heat storage component 123 absorbs part of heat of waste gas in the second cavity 126, so that heat of the waste gas is fully absorbed and stored in the heat storage component 123, heat loss of the waste gas around the steam transmission channel 122 in the second cavity 126 is reduced, the waste gas flowing speed is high, the heat is taken away by the waste gas to cause heat waste, and then under the action of the heat storage component 123, after the waste gas flows away, the heat is continuously released to the steam transmission channel 122, steam in the steam transmission channel is continuously heated, the temperature of the steam is increased, and the condensation of the steam into liquid is reduced. Through setting up heat accumulation subassembly 123 for the heat of waste gas is preserved in a large number, and has accomplished the heat transfer, has improved heat utilization efficiency.
Further, the perforated barrier 124 also divides the exhaust gas input chamber into an exhaust gas input chamber 128 and an exhaust gas input chamber 127. The tail gas input cavity 128 is disposed near the liquid inlet tank 110 and is provided with a waste gas input port 133, and a combustion catalyst is disposed in the waste gas input cavity 127.
For example, the exhaust gas uniformly flows through the openings of the perforated barrier 124 into the exhaust gas inlet chamber 127, where the exhaust gas reacts with the combustion catalyst to release heat. The steam generating medium is heated through tail gas combustion, so that secondary utilization of tail gas pollutants is realized.
Further, the exhaust gas input cavity 128 is arranged to enable the exhaust gas entering from the exhaust gas input port to be uniformly mixed in the exhaust gas input cavity 128 and then enter the exhaust gas input cavity 127 through the multi-hole group partition plate 124, so that the exhaust gas is uniformly contacted with the combustion catalyst and reacts to generate heat, and the steam generation cavity 120 is uniformly heated.
Further, the vapor generation cavity 120 further includes: a first heater 140 and a second heater 150. The first heater 140 includes: at least one first heating element; the first heating member may be, for example, an electrical heating tube. At least one first heating element is disposed in each first opening, the first heating elements extend into the corresponding vapor transmission passage 122, and the first heater 140 heats the vapor generation medium in the vapor transmission passage 122 to generate vapor which is transmitted in the vapor transmission passage 122.
Specifically, the second heater 150 includes at least one second heating element, which may be, for example, an electrical heating tube; at least one second heating element is arranged in each second opening; the second heating members extend into the respective vapor transmission passages 122 and further heat the vapor in the vicinity of the second openings of the vapor transmission passages 122. For example, in one aspect, raising the temperature of the vapor to prevent it from entering the hydrogen generator 200 at a temperature that is insufficient results in a less efficient reaction with the hydrogen production catalyst; on the other hand, the temperature of the steam can reach an overheating level, the temperature of the steam can be adjusted according to the temperature level required by the hydrogen production catalyst, the steam is heated to the required temperature, and the adaptability of the steam is improved.
Specifically, referring to fig. 7 and 8, the hydrogen generator 200 includes: a hydrogen generation space 210 and a hydrogen output pipe 230. The hydrogen generation space 210 is located inside the steam generator 100 and surrounds the exhaust gas transfer passage 201, and the exhaust gas enters from the exhaust gas inlet 240, flows to the exhaust gas transfer passage 201, flows to the exhaust gas outlet 250, and is output to the exhaust gas processor. A hydrogen production catalyst is provided in the hydrogen generation space 210, and the hydrogen generation space 210 is communicated with the steam delivery pipe 430. The steam input by the steam conveying pipe 430 reacts with the hydrogen production catalyst to generate hydrogen, and the waste gas in the waste gas transmission channel 201 of the hydrogen generator 200 releases heat to heat the reaction of the steam and the hydrogen production catalyst, so that the reaction rate of the steam and the hydrogen production catalyst is improved, the hydrogen generation efficiency is improved, the time is saved, and the hydrogen is obtained by fully reacting in the hydrogen generator 200. The hydrogen output pipe 230 is communicated with the hydrogen generation space 210 and outputs the hydrogen obtained by the hydrogen generator 200; and (4) cooling the hydrogen after outputting, and purifying the hydrogen to obtain pure hydrogen.
Preferably, referring to fig. 9, at least one perforated barrier 124 is also provided within the hydrogen generator 200. The porous blocking plate 124 is arranged in the hydrogen generating space 210, and the hydrogen production catalyst is uniformly distributed on the porous blocking plate 124; for example, the hydrogen production catalyst is uniformly distributed on the porous blocking plate 124, so that the reaction area of the hydrogen production catalyst and steam is increased, the hydrogen production reaction efficiency is improved, and the hydrogen generation rate is further improved. The steam is introduced through the steam delivery pipe 430 and then flows through the porous group separator 124 to the entire hydrogen generation space 210, and the generated hydrogen flows through the openings of the porous group separator 124 to the hydrogen output pipe 230 to output hydrogen.
Preferably, referring to fig. 10, a schematic diagram of the structure of the purification apparatus 300 is shown. The purification apparatus 300 includes, for example: a knock-out drum 310, at least one purification adsorption column 320, and a tail gas collection drum 330. For example, any one of the purification adsorption columns 320 is communicated with the gas-liquid separation tank 310, and any two of the purification adsorption columns 320 are communicated with each other; the tail gas collecting tank 330 is communicated with the gas-liquid separation tank 310 and any one of the purification adsorption towers 320, and the tail gas collecting tank 330 is provided with a tail gas discharge pipe 331; the hydrogen finished product delivery pipe 301 is communicated with any one of the purification adsorption towers 320.
Preferably, referring to fig. 11 and 12, the knock out pot 310 includes, for example: a dry hydrogen chamber 311, a reaction gas chamber 312, a gas-liquid filter plate 313, a reaction gas exhaust pipe 314, and a reaction gas inlet 315. Wherein, the dry hydrogen gas chamber 311 is arranged at the top of the gas-liquid separation tank 310 and communicated with each purification adsorption tower 320; the reaction air cavity 312 is arranged at the bottom of the gas-liquid separation tank 310; the gas-liquid filter plate 313 is arranged between the dry hydrogen gas cavity 311 and the reaction gas cavity 312; the reaction gas exhaust pipe 314 is communicated with the bottom of the reaction gas cavity 312; the reaction gas inlet 315 is provided at a side of the reaction gas chamber.
Further, a liquid level device is arranged to reflect the strength of the device, is connected with the side wall of the gas-liquid separation tank 310, is arranged between the reaction gas drainage pipe 314 and the reaction gas inlet 315 in height, constantly detects the liquid level of the wastewater filtered by the gas-liquid filtering plate 313, and prevents the liquid level of the wastewater from being higher than the reaction gas inlet 315.
Preferably, referring to fig. 13 and 14, the purification adsorption columns 320 are, for example, four, and each purification adsorption column 320 includes, for example: a hydrogen filter cavity 321, a hydrogen finished product cavity 322 and a tail gas separation plate 323. Wherein, the hydrogen filtering cavity 321 is located at the bottom of the purification adsorption tower 320, is communicated with the dry hydrogen cavity 311, and is communicated with the bottom of the tail gas collecting tank 330; the hydrogen finished product cavity 322 is positioned at the top of the purification adsorption tower 320, is communicated with the hydrogen finished product leading-out pipe 301, and is connected with the hydrogen finished product cavity 322 of each of the rest purification adsorption towers 320; and a tail gas separation plate 323 arranged between the hydrogen filter cavity 321 and the hydrogen product cavity 322, wherein the tail gas separation plate 323 can be multi-layered.
When hydrogen needs to be introduced into the four purification adsorption towers 320 for filtration, the tail gas collection tank 330 and the gas-liquid separation tank 310 are disconnected by at least one electromagnetic valve, and the hydrogen flows out of the hydrogen finished product cavity 322 after being filtered by the tail gas separation plate 323, is led out of the hydrogen finished product leading-out pipe 301, and remains in the hydrogen filtration cavity 321 of the purification adsorption tower 320. Of course, an electromagnetic valve may be disposed between the dry hydrogen chamber 311 and the hydrogen filtering chamber 321 of each purification and adsorption tower 320, and any number of electromagnetic valves may be closed to control any number of purification and adsorption towers 320 to operate.
For example, when only two purification/adsorption towers 320 are performing the hydrogen filtering operation, the connection between the purification/adsorption towers and the finished hydrogen gas outlet 301 may be disconnected by the solenoid valve, and the other two purification/adsorption towers 320 may be back-filled with hydrogen gas through the finished hydrogen gas outlet 301. At this time, two purification and adsorption towers 320 are filled with hydrogen, tail gas exists in the hydrogen filter cavities 321 at the bottoms of the other two purification and adsorption towers 320, the connection between the purification and adsorption towers 320 with the tail gas and the tail gas collection tank 330 is opened, hydrogen is introduced into the tops of the purification and adsorption towers 320 with the tail gas by using the purification and adsorption towers 320 filled with hydrogen to extrude the tail gas, and the extruded tail gas is collected in the tail gas collection tank 330.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and 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 skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A hydrogen production system, comprising:
the steam generator is internally provided with a steam generating cavity, the outside of the steam generator is sleeved with an exhaust gas heating cylinder, and an exhaust gas channel is formed between the exhaust gas heating cylinder and the steam generator; the waste gas heating cylinder is provided with a waste gas input port and a waste gas output port which are communicated with the waste gas channel;
the hydrogen generator is internally provided with a waste gas transmission channel;
the steam generator is communicated with the hydrogen generator through the steam conveying pipe;
steam generator includes the feed liquor collection box, the feed liquor collection box includes:
the first flange plate is arranged at the bottom of the waste gas heating cylinder;
the second flange plate is provided with an infusion inlet, the second flange plate is matched and connected with the first flange plate to form a liquid inlet collection box, and the liquid inlet collection box is communicated with an infusion tube through the infusion inlet;
the purification device is communicated with the hydrogen generator and is used for purifying the hydrogen generated by the hydrogen generator;
the waste gas heating part is communicated with waste gas, and the waste gas can heat the steam generator and/or the hydrogen generator.
2. The hydrogen generation system of claim 1, wherein the hydrogen generator comprises:
the hydrogen generating space is positioned in the hydrogen generator, wraps the waste gas transmission channel, is provided with a hydrogen production catalyst and is communicated with the steam conveying pipe, and steam input by the steam conveying pipe reacts under the action of the hydrogen production catalyst to generate hydrogen;
and the hydrogen output pipe is communicated with the hydrogen generating space.
3. The hydrogen generation system of claim 2, wherein the purification apparatus comprises:
the gas-liquid separation tank is provided with a hydrogen inlet and a hydrogen outlet, the hydrogen inlet is connected with the hydrogen output pipe, and the hydrogen output pipe is communicated with the hydrogen generation space;
the purification adsorption tower is provided with a hydrogen input port, a purified hydrogen outlet and a tail gas outlet, and the hydrogen input port is connected with the hydrogen outlet through a pipeline;
the tail gas collecting tank is connected with the tail gas outlet through a pipeline;
and the purified hydrogen storage tank is connected with the purified hydrogen outlet through a pipeline.
4. The hydrogen production system as claimed in claim 3, wherein a hydrogen filter is provided in the purification adsorption tower, and the hydrogen filter separates the interior of the purification adsorption tower into a hydrogen accommodating space to be purified and a purified hydrogen accommodating space.
5. The hydrogen generation system of claim 4, wherein the hydrogen filter is sequentially filled with Al2O3Molecular sieves, zeolite molecular sieves, and carbon molecular sieves.
6. The system for producing hydrogen of claim 1, wherein a cavity is formed by recessing a middle portion of the first flange and/or the second flange, and the cavity forms the inlet header.
7. The system for producing hydrogen of claim 1 wherein a first heater is disposed in the inlet header and the inlet header defines at least one first opening communicating with a steam generator, the steam generator comprising:
the steam part is provided with a steam accommodating cavity, a second opening communicated with the steam accommodating cavity and a steam outlet; the second opening formed in the steam part is opposite to the first opening formed in the liquid inlet header;
at least one vapor transmission channel communicating the at least one first opening and the at least one second opening.
8. The hydrogen generation system of claim 7, wherein the vapor generator further comprises:
the first cavity, the second cavity and the third cavity are sequentially arranged between the liquid inlet collection box and the steam part at intervals;
the waste gas inlet is communicated with the first cavity, and the waste gas outlet is communicated with the third cavity; and a heat storage assembly is arranged in the second cavity.
9. The hydrogen production system as claimed in claim 7, wherein the exhaust gas heating cartridge is sleeved outside the at least one vapor transmission channel and connected between the inlet header and the vapor portion;
wherein the exhaust gas passage is formed between the inner wall of the exhaust gas heating cartridge and the at least one vapor transfer passage.
10. The hydrogen generation system of claim 7, wherein the vapor generator further comprises:
the second heater is arranged in the steam accommodating cavity; the second heater comprises at least one second heating element; at least one of the second heating elements is disposed in each of the second openings and extends into the corresponding vapor transmission passage.
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| CN112696651A (en) * | 2020-12-10 | 2021-04-23 | 广东醇氢新能源研究院有限公司 | Steam generator and hydrogen production system |
| CN112573482B (en) * | 2020-12-10 | 2022-07-08 | 洛阳沃达节能科技有限公司 | Hydrogen production pipe of hydrogen production device and hydrogen production device |
| CN116443813A (en) * | 2023-02-27 | 2023-07-18 | 福州大学 | Ammonia decomposition reaction device and system |
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