CN110982556A - A equipment for hydrogen production - Google Patents
A equipment for hydrogen production Download PDFInfo
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- CN110982556A CN110982556A CN201911364110.5A CN201911364110A CN110982556A CN 110982556 A CN110982556 A CN 110982556A CN 201911364110 A CN201911364110 A CN 201911364110A CN 110982556 A CN110982556 A CN 110982556A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
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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
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
- C01B3/16—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/34—Grates; Mechanical ash-removing devices
- C10J3/36—Fixed grates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
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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
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0872—Methods of cooling
- C01B2203/0883—Methods of cooling by indirect heat exchange
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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
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
- C01B2203/1047—Group VIII metal catalysts
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
- C10J2300/0933—Coal fines for producing water gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention discloses equipment for hydrogen production, which comprises a steam boiler, a reaction furnace matched with the steam boiler, a purification furnace matched with the reaction furnace and an air inlet device matched with the reaction furnace, wherein the reaction furnace is arranged in the reaction furnace; the air inlet device comprises an air inlet pipe, a bronchus communicated with one end of the air inlet pipe and an air supply piece communicated with the other end of the air inlet pipe; an auxiliary heating device is arranged in the steam boiler; according to the invention, through the arrangement of the branch air pipes, air is uniformly fed into the reaction furnace, so that fuel in the reaction furnace can be more sufficiently combusted, and resource waste caused by insufficient combustion is avoided; the fuel can be heated better and more quickly through sufficient combustion, and the hydrogen preparation efficiency is improved; and the heating speed is further increased by arranging the auxiliary heating device.
Description
Technical Field
The invention belongs to the technical field of hydrogen production, and particularly relates to equipment for hydrogen production.
Background
Hydrogen is the cleanest energy, and the raw material is rich, can be recycled, and is an ideal energy; among the methods for preparing hydrogen, the water gas method for preparing hydrogen is a method with low cost and large output, and the method needs a high-temperature environment and is heated by burning anthracite; however, the existing equipment is often insufficient in energy utilization, which causes waste of resources.
Disclosure of Invention
The invention provides equipment for hydrogen production with high energy utilization rate in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: an apparatus for hydrogen production comprises a steam boiler, a reaction furnace matched with the steam boiler, a purification furnace matched with the reaction furnace and an air inlet device matched with the reaction furnace; the air inlet device comprises an air inlet pipe, a bronchus communicated with one end of the air inlet pipe and an air supply piece communicated with the other end of the air inlet pipe; an auxiliary heating device is arranged in the steam boiler; through the arrangement of the branch air pipes, air is uniformly fed into the reaction furnace, so that fuel in the reaction furnace can be more sufficiently combusted, and resource waste caused by insufficient combustion is avoided; the fuel can be heated better and more quickly through sufficient combustion, and the hydrogen preparation efficiency is improved; and the heating speed is further increased by arranging the auxiliary heating device.
Furthermore, a plurality of air holes uniformly distributed along the circumferential direction are formed in the bronchus, and an expansion section is arranged on each air hole; a filter screen piece is arranged on the flaring section; through the arrangement of the plurality of air holes, air is better dispersed and uniformly fed into the reaction furnace, and the fuel in the reaction furnace can be fully combusted; through the arrangement of the flaring section, the air flowing out of the air hole can be better diffused, and the effects of reducing air pressure and air flow velocity are also achieved, so that substances such as coal slag and the like are prevented from being blown up by air flow, the prepared hydrogen is more pure, and the filtering is simpler and more convenient; and through the arrangement of the filter screen piece, the filter screen piece can prevent coal, coal slag and other substances from entering the bronchus, so that the problem that the bronchus is blocked is avoided, and the filter screen piece also plays a role in further scattering air.
Further, the auxiliary heating device comprises a heat insulation layer arranged in the side wall of the steam boiler, heating pipes arranged on the outer surface of the reaction furnace and pipe grooves matched with the heating pipes; the heat insulation layer plays a role in preventing heat loss, so that the utilization rate of energy is greatly improved, and the production cost is saved; then, through the arrangement of the heating pipe, a second heat source is provided for the steam boiler and the reaction furnace, so that the pollution is reduced; the arrangement of the pipe groove not only can make the installation of the heating pipe more convenient, but also can make the heat generated by the heating pipe be better conducted to the reaction furnace.
Further, the heating pipe comprises an outer pipe arranged in the pipe groove, a heating wire arranged in the outer pipe and powder filler arranged between the outer pipe and the heating wire; the outer pipe plays the roles of water resistance and heat conduction, and protects internal elements; the powder filler plays a role in heat conduction and insulation, and also plays a role in protecting the heating wire, so that the service life of the heating wire is prolonged.
Further, the reaction furnace comprises a reaction chamber communicated with the steam boiler, a heating chamber arranged below the reaction chamber, a switching device matched with the reaction chamber and a valve assembly matched with the switching device; the coal used for reacting with the water vapor and the coal used for heating are separated through the arrangement of the reaction chamber and the heating chamber and are reacted in two places, so that the problem that a large amount of waste gas generated by burning the coal is mixed with the water gas is solved, the impurity content is low, and the subsequent separation and purification are more convenient; the separation of the water vapor and the coal enables the reaction of the water vapor and the coal to be continuously carried out without intermittently heating the coal, so that the production of the water gas is more efficient and faster; and then through the arrangement of the valve component, when raw materials are required to be added into the reaction chamber and the heating chamber, the steam pipe can be closed, so that the steam is prevented from scalding workers, and unnecessary leakage and waste of the steam are also avoided.
Further, the reaction chamber is communicated with the heating chamber through a discharge channel; the discharge channel comprises a movable groove, a lower scraping piece arranged in the discharge channel and an upper scraping piece capable of moving back and forth along the bottom surface of the reaction chamber; the reaction chamber is communicated with the heating chamber through the arrangement of the discharge channel, so that the coal in the reaction chamber is conveniently discharged into the heating chamber, the secondary utilization of the coal is realized, and the discharge of the coal is more convenient; through the cooperation setting of last scraper and lower scraper to make when discharge valve rotates in order to open discharge passage, the surface of discharge valve can be scraped to lower scraper, scrapes into discharge passage with the cinder, goes up the scraper and can take place to rotate under the drive of transmission shaft promptly, also scrapes into discharge passage with the cinder in the reacting chamber, thereby need not the manual cinder of getting rid of, the operation of being convenient for, labour saving and time saving.
Further, the valve assembly comprises a baffle plate piece movably connected with the inner surface of the reaction chamber, a movable arm detachably connected with the upper scraping piece and a pushing piece arranged on the movable arm; the opening and closing of the steam pipe are realized through the arrangement of the baffle piece and the pushing piece, and the steam pipe opening and closing device is simple and effective in structure; and then the pushing piece is matched with the upper scraping piece through the matching between the movable arm and the upper scraping piece, when the upper scraping piece scrapes the coal slag into the discharge channel, the steam pipe can be closed by the baffle piece, and when the upper scraping piece is reset, the steam pipe can be opened by the baffle piece, so that an additional control device is not needed, and the operation of workers is facilitated.
Further, the pushing piece comprises an arc-shaped pushing section matched with the baffle piece and a connecting section used for connecting the arc-shaped pushing section and the movable arm; the arc-shaped pushing section is arranged, so that the pushing part is in smooth contact with the baffle piece, the pushing part can push the baffle piece more conveniently, and the connecting section plays a role in supporting the baffle piece, so that the baffle piece cannot fall down to seal the steam pipe when water gas is produced.
In conclusion, the air introduced into the reaction furnace is uniformly dispersed through the arrangement of the branch air pipes, so that the anthracite in the reaction furnace can be in more sufficient contact with the air, the anthracite can be more fully combusted and utilized, and the resource waste is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a sectional view showing the three-dimensional structures of a steam boiler and a reaction furnace according to the present invention;
FIG. 4 is an enlarged schematic view at B of FIG. 3;
FIG. 5 is a top view of a steam boiler according to the present invention;
FIG. 6 is a schematic cross-sectional view taken at A-A in FIG. 5;
FIG. 7 is an enlarged schematic view at C of FIG. 6;
FIG. 8 is an enlarged schematic view at D of FIG. 6;
FIG. 9 is a schematic cross-sectional view taken at B-B in FIG. 5;
FIG. 10 is an enlarged schematic view at E of FIG. 9;
FIG. 11 is a schematic cross-sectional view of a steam boiler and a reaction furnace according to the present invention;
FIG. 12 is an enlarged schematic view at F of FIG. 11;
FIG. 13 is a schematic perspective view of a purification furnace according to the present invention;
fig. 14 is an enlarged schematic view at G in fig. 13.
Detailed Description
As shown in fig. 1 to 14, an apparatus for hydrogen production includes a steam boiler 1, a reaction furnace 2, and a purification furnace 3; the steam boiler comprises a steam chamber 11, a steam pipe 12 and an auxiliary heating device; the steam chamber is surrounded at the periphery of the reaction furnace and basically surrounds the reaction furnace, so that the reaction furnace can directly heat the steam chamber, the heating efficiency is high, the heat loss is less, and the occupied area of equipment is smaller; the reaction furnace comprises a reaction chamber 21, a heating chamber 22 and a switch device; the reaction chamber is tightly attached to the steam chamber, and the heating chamber is arranged below the reaction chamber and is tightly attached to the reaction chamber, so that the heating chamber can directly heat the reaction chamber; in order to better guide the heat in the heating chamber into the reaction chamber and the steam chamber, a plurality of heat conduction fins 221 are arranged on the inner wall of the heating chamber, one end of each heat conduction fin is exposed in the heating chamber, and the other end of each heat conduction fin is positioned in the steam chamber and the reaction chamber to play a role in heat conduction; one end of the steam pipe is communicated with the steam chamber, and the other end is communicated with the reaction chamber, so that the steam is guided into the reaction chamber from the steam chamber and is used for reacting with anthracite coal placed in the reaction chamber to generate water gas, and the reaction equation is H2O+C＝C0+H2(ii) a The heating chamber is also heated by placing anthracite coal, and enabling the anthracite coal to react with oxygen in the air to release a large amount of heat, wherein the reaction equation is C + O2＝CO2(ii) a Because heating chamber and reaction chamber separately set up, the vaporization reaction of vapor and anthracite and the reaction of anthracite burning heating can separately go on simultaneously, and need not to burn the anthracite earlier and heat water and coal, react in the high temperature coal of vapor passageway again, the time is saved, when making gas production efficiency higher, because the burning of anthracite is separated with the reaction of water gas, the waste gas that the burning produced can not mix with the water gas promptly, and the coal ash that the burning coal produced, things such as cinder can not mix in the water gas yet, thereby make the water gas of formation more pure, subsequent purification is more simple and convenient.
Specifically, the auxiliary heating device comprises a heat insulation layer 13, a heating pipe 14 and a pipe groove 15; the heat insulation layer is made of asbestos and is arranged in the side wall of the steam boiler to play a role in heat insulation and avoid heat loss, so that the utilization rate of energy is improved, and the cost is reduced; the pipe groove is arranged on the outer wall of the reaction furnace and used for installing the heating pipe, and the heat of the heating pipe can be better transmitted into the reaction furnace; the heating pipe is arranged, so that the heating pipe can be used for assisting in heating at night when the electric quantity is surplus, the combustion of coal is reduced, and the pollution is reduced; wherein the heating pipe includes outer tube 141, heater strip 142 and powder filler 143, and this powder filler is the magnesium oxide powder, plays the effect of protection heater strip, when the life of extension heater strip, has also played heat conduction and insulating effect, and the outer tube is laminated mutually with the tube seat, is convenient for install and conduction heat.
Specifically, the heating chamber comprises a combustion chamber 222, a slag chamber 223 and a slag discharge passage 224; the combustion chamber is adjacent to the reaction chamber, and the slag chamber is connected with the combustion chamber through a slag discharge channel, so that the coal slag obtained by burning anthracite can be quickly discharged; in order to ensure that the anthracite coal in the heating chamber can be sufficiently combusted, an air inlet device is arranged, and comprises an air inlet pipe 23, a branch air pipe 24 and an air supply part 25, wherein the air supply part is a commercially available blower, which is the prior art and therefore is not described in detail herein; the branch air pipe is arranged at the bottom of the combustion cavity, one end of the air inlet pipe is communicated with the air blower, the other end of the air inlet pipe is communicated with the branch air pipe, and the branch air pipe is provided with a plurality of uniformly distributed air holes 241, so that air sent into the combustion cavity from the air blower can be dispersed into a plurality of strands of fine air flows, the contact between the anthracite and the air is more sufficient, the anthracite is fully combusted and utilized, and the resource waste is avoided; the air holes are provided with the flaring sections 242, so that the air flow blown out of the air holes can be blown around better along the flaring sections, and meanwhile, the flaring sections also play a role in reducing air pressure and air flow velocity, so that the blown air flow is milder, and the phenomenon of ash flying is avoided; and a filter screen 243 is arranged on the flaring section, so that the airflow blown out from the air holes can be better dispersed, and meanwhile, the function of preventing dust from falling into the air holes is also achieved, and the air holes are prevented from being blocked by coal cinder.
Specifically, the switching device comprises a discharge valve 41, a transmission assembly, a connecting rod 42, a control rod 43, a transmission chain 44 and a feeding valve 45; wherein the transmission assembly comprises a transmission shaft 411, a first transmission gear 412, a second transmission gear 413, a third transmission gear 414 and a rotating shaft 415; the transmission shaft is arranged on the discharge valve and welded with the discharge valve; the reaction furnace is internally provided with an installation cavity for installing a switching device, a first transmission gear is arranged on a transmission shaft and is in key connection with the transmission shaft, a second transmission gear is rotationally connected with the side wall of the installation cavity through a gear shaft and is meshed with the first transmission gear; the third transmission gear is meshed with the second transmission gear, and the third transmission gear is arranged on the rotating shaft and is in key connection with the rotating shaft; one end of the rotating shaft is connected with a supporting rod bearing, the other end of the rotating shaft is provided with two grooves 4151, one end of the connecting rod is provided with two convex shafts 421, and the convex shafts can be just embedded into the grooves, so that the connecting rod can rotate up and down relative to the rotating shaft and can drive the rotating shaft to rotate left and right; a sleeve 422 is arranged at the other end of the connecting rod, the control rod passes through the sleeve and is connected with the mounting cavity, so that the connecting rod can slide back and forth along the control rod, the control rod is hinged with the mounting cavity for mounting the switch device, the control rod can rotate left and right while rotating up and down, and the connecting rod can slide along the control rod when the control rod rotates up and down, so that the two are not interfered with each other; when the control rod rotates left and right, the connecting rod is driven to move left and right, and then the discharge valve is driven to rotate left and right along the movable groove, so that the discharge valve can open and close the discharge channel; in order to control the opening and closing of the discharge valve conveniently, the diameter of the third transmission gear is larger than that of the first transmission gear, and the diameter of the first transmission gear is larger than that of the second transmission gear, so that the connecting rod only needs to drive the third transmission gear to rotate by a small angle, the second transmission gear can rotate by a large number of turns, the first transmission gear rotates by a large angle, the discharge valve is further driven to rotate by a large angle to complete the opening and closing of the discharge channel, and the operation of an operator is simpler, more convenient and faster; two reset pieces 48 are arranged in the valve groove, the reset pieces are springs, one end of each spring acts on the bottom end of the feeding valve, and the other end of each spring acts on the bottom of the valve groove; the bottom of the feeding valve is fixedly connected with a transmission chain, the bottom of the valve groove is provided with a chain hole for the transmission chain to pass through, and the other end of the transmission chain is connected with the control rod, so that when the control rod rotates downwards, the feeding valve is driven by the transmission chain to move downwards along the valve groove so as to open the feeding hole, and when the control rod rotates upwards, the spring plays a role of pushing the feeding valve upwards to reset, so that the feeding valve can be conveniently closed to the feeding hole; in order to facilitate the operation of the control rod by a user, a rod groove 211 is formed, and the control rod penetrates out of the rod groove; the rod slot includes a first slot segment 2111 and a second slot segment 2112; the first groove section is transversely arranged, so that the control rod can move left and right along the first groove section to control the movement of the discharge valve; the second groove section is longitudinally arranged, so that the control rod can move up and down along the second groove section to control the movement of the feeding valve, and the limiting effect on the control rod is achieved.
In order to facilitate the discharge of the reacted anthracite, the bottom surface of the reaction chamber is provided with a discharge channel 46, and the reaction chamber is connected with the heating chamber through the discharge channel, so that the reacted coal can be directly discharged into the heating chamber for secondary utilization, the coal cinder is convenient to discharge, and the utilization rate of the coal is improved; the discharge valve is arranged at the discharge channel opening, and the anthracite is placed on the discharge valve and the bottom surface of the reaction chamber to react with the water vapor; the discharge channel is provided with a movable groove 461, the movable groove is provided with an axial groove for rotating a transmission shaft, the rotary connection between the discharge valve and the movable groove is realized through the matching between the axial groove and the transmission shaft, so that the discharge valve can move back and forth along the movable groove to achieve the effect of opening and closing the discharge channel, the matching between the movable groove and the discharge valve also plays a certain sealing role, and a sealing ring is arranged between the movable groove and the discharge valve, thereby further improving the air tightness between the movable groove and the discharge valve, preventing waste gas in a heating chamber from entering the reaction chamber, improving the purity of produced water gas, preventing air from entering the reaction chamber, avoiding the possibility of explosion caused by the mixing of air and water gas, and greatly improving the safety in the production process; before the coal in the reaction chamber is discharged into the combustion chamber, water vapor is required to be firstly passed for a period of time, the water gas in the reaction chamber is ensured to be discharged, and then a discharge channel is opened, so that the condition that the air is not contacted with the water gas is ensured; in order to facilitate shoveling the coal slag which is wetted by water vapor and adhered to the bottom surfaces of the discharge valve and the reaction chamber into the discharge channel, a scraping component is installed, and comprises an upper scraping part 463 and a lower scraping part 462, wherein the upper scraping part is installed on a transmission shaft and is in bolt connection with the transmission shaft, so that when the transmission shaft rotates, the upper scraping part can be driven to rotate to shovel all the coal slag on the bottom surface of the reaction chamber into the discharge channel, the lower scraping part is installed on two sides of a movable groove and is tightly matched with the discharge valve, so that when the discharge valve contracts towards the movable groove, the lower scraping part can scrape the coal slag on the discharge valve, manual shoveling is not needed, convenience and rapidness are realized, and the problem that the movable groove is blocked is also avoided; in order to facilitate the addition of the anthracite coal for generating the water gas, a feed inlet is formed in the reaction chamber, a valve slot 47 is formed in the feed inlet, and the feed valve 45 is installed in the valve slot 47 and can slide up and down along the valve slot to open and close the feed inlet.
In order to prevent the waste or scald of workers caused by the continuous introduction of steam into the reaction chamber when anthracite is added, a valve assembly is arranged in the reaction chamber, and comprises a baffle plate member 51, a movable arm 52 and a pushing member 53; the baffle piece is arranged on the inner wall of the reaction chamber, is hinged with the inner wall of the reaction chamber and is just positioned above the opening of the reaction chamber connected with the steam pipe, so that the baffle piece can be naturally suspended under the action of gravity to seal the steam pipe; the movable arm is arranged on the upper scraping part and is connected with the upper scraping part through a screw, and the pushing part is arranged on the movable arm and is welded with the movable arm; when the feeding valve is closed, the pushing piece can be contacted with the baffle piece again to push the baffle piece to turn upwards and open the steam pipe, so that steam can be introduced into the reaction chamber again; the pushing piece comprises an arc-shaped pushing section 531 and a connecting section 532, so that the pushing piece is in smooth contact with the baffle piece, the baffle piece is pushed to turn over more conveniently, the connecting section plays a role in supporting the baffle piece after the feeding valve is closed, the steam pipe is prevented from being blocked by the baffle piece when the baffle piece is turned down, and the steam can be smoothly introduced into the reaction chamber.
Specifically, the purification furnace comprises a reactor 31, a cooling pipe 32, a cooling chamber 33 and a water inlet pipe 39; wherein the reactor comprises a shell 311, a heat-insulating layer 312, a reaction pipeline 313 and a catalyst 314; the catalyst will oxidize iron sesquioxide; the reactor is at least partially embedded in the cooling chamber, the shell plays a role of sealing and water proofing, the heat insulation layer is arranged in the shell, so that the shell can be always kept at a proper temperature to facilitate the reaction between water gas and water vapor, and the reactor is embedded in the cooling chamber, so that the heat dissipated from the reactor can be absorbed by the cooling chamber, and the utilization rate of energy is improved; reaction pipelineOne end of the water gas generator is communicated with the steam pipe and the reaction chamber, and the other end of the water gas generator is communicated with the cooling pipe, so that the water gas generated by the reaction chamber and the steam generated by the steam chamber can simultaneously enter the reaction pipeline for reaction, and the reaction equation is CO + H20＝C02+H2(ii) a The gas generated by the reaction is cooled by the cooling pipe, and the cooling pipe is arranged in the cooling chamber, so that the cooling pipe is immersed in the cooling water, and the cooling effect of the cooling pipe is better and more comprehensive; the cooling water heated by the gas is supplemented into the steam chamber through the water inlet pipe to supplement water for the steam chamber, so that the water in the steam chamber is always kept at a proper water level, and meanwhile, the cooling water is heated, so that the cooling water added into the steam chamber can be boiled to generate steam without too much energy, and the effect of recycling the waste heat of the gas is achieved; in order to make the reaction between the water vapor and the water gas more efficient and sufficient; the reaction pipeline is arranged as a spiral pipeline, and the reaction pipeline is provided with a plurality of vent holes 3131, so that gas forms cyclone under the action of the spiral pipeline, the gas collides with the catalyst more violently, the contact area is wider, the reaction is quicker, and the utilization rate of the catalyst is higher.
In order to enable the cooling pipe to have a better cooling effect on the gas, the cooling pipe is arranged to be a spiral pipeline, so that the contact area between the cooling pipe and cooling water is wider, and the path through which the gas flows is longer; a stirring device is arranged in the cooling chamber, so that cooling water flows, and the cooling effect of the cooling pipe is further ensured; specifically, the stirring device comprises an air outlet pipe 34, a vent pipe 35, a windmill 36, a stirring shaft 37 and a stirring paddle 38; the outlet pipe is connected to the cooling pipe so that the cooled gas can be purified and collected by a subsequent device (this is prior art and is not described in detail in this embodiment for reasons of space); the vent pipe is arranged on the vent pipe to divide the vent pipe into two sections, so that gas can flow through the vent pipe; one end of the stirring shaft is inserted into the vent pipe and is connected with the bottom surface bearing of the vent pipe, and the other end of the stirring shaft is inserted into the cooling chamber; the windmill is arranged in the vent pipe and is in key connection with the stirring shaft, so that the windmill can be driven to rotate by airflow flowing through the vent pipe, and the rotating speed of the windmill is not too fast due to the fact that the airflow speed is not fast, and further the rotating speed of the stirring shaft in key connection with the windmill is not too fast; and the (mixing) shaft is located two stirring rakes of keyed joint on the part in the cooling chamber to make the stirring rake can rotate at a low speed under the drive of (mixing) shaft, and then make the cooling water in the cooling chamber can flow under the drive of stirring rake, guarantee that cooling hydroenergy thermally equivalent, when playing the endothermic effect of better cooling, the velocity of flow can not be too fast again, and the heat of aquatic is difficult for scattering and disappearing.
Claims (8)
1. An apparatus for hydrogen production, comprising a steam boiler (1), a reaction furnace (2) matched with the steam boiler (1), a purification furnace (3) matched with the reaction furnace (2) and an air inlet device matched with the reaction furnace (2); the method is characterized in that: the air inlet device comprises an air inlet pipe (23), a bronchus (24) communicated with one end of the air inlet pipe (23) and an air delivery piece (25) communicated with the other end of the air inlet pipe (23); an auxiliary heating device is arranged in the steam boiler (1).
2. The plant for hydrogen production according to claim 1, characterized in that: the gas branch pipe (24) is provided with a plurality of gas holes (241) which are uniformly distributed along the circumferential direction, and the gas holes (241) are provided with flaring sections (242); and a filter screen (243) is arranged on the flaring section (242).
3. The plant for hydrogen production according to claim 2, characterized in that: the auxiliary heating device comprises a heat insulation layer (13) arranged in the side wall of the steam boiler (1), heating pipes (14) arranged on the outer surface of the reaction furnace (2) and pipe grooves (15) matched with the heating pipes (14).
4. The plant for hydrogen production according to claim 3, characterized in that: the heating pipe (14) comprises an outer pipe (141) arranged in the pipe groove (15), a heating wire (142) arranged in the outer pipe (141), and a powder filler (143) arranged between the outer pipe (141) and the heating wire (142).
5. The plant for hydrogen production according to claim 4, characterized in that: the reaction furnace (2) comprises a reaction chamber (21) communicated with the steam boiler (1), a heating chamber (22) arranged below the reaction chamber (21), a switching device matched with the reaction chamber (21) and a valve assembly matched with the switching device.
6. The plant for hydrogen production according to claim 5, characterized in that: the reaction chamber (21) is communicated with the heating chamber (22) through a discharge passage (46); the discharge channel (46) comprises a movable groove (461), a lower scraper (462) arranged in the discharge channel (46) and an upper scraper (463) which can move back and forth along the bottom surface of the reaction chamber (21).
7. The plant for hydrogen production according to claim 6, characterized in that: the valve assembly comprises a baffle plate member (51) movably connected with the inner surface of the reaction chamber (21), a movable arm (52) detachably connected with the upper scraping member (463) and a pushing member (53) arranged on the movable arm (52).
8. The plant for hydrogen production according to claim 7, characterized in that: the pushing member (53) comprises an arc-shaped pushing section (531) matched with the baffle piece (51) and a connecting section (532) used for connecting the arc-shaped pushing section (531) and the movable arm (52).
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| CN201911364110.5A CN110982556B (en) | 2019-12-26 | 2019-12-26 | A equipment for hydrogen production |
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| CN201911364110.5A CN110982556B (en) | 2019-12-26 | 2019-12-26 | A equipment for hydrogen production |
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| US20170312718A1 (en) * | 2016-04-30 | 2017-11-02 | The Research Foundation For Suny | System and Method for Production of Ultra-Pure Hydrogen from Biomass |
| US20190135626A1 (en) * | 2017-11-09 | 2019-05-09 | 8 Rivers Capital, Llc | Systems and methods for production and separation of hydrogen and carbon dioxide |
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|---|---|---|---|---|
| CN103074111A (en) * | 2013-01-28 | 2013-05-01 | 秦恒飞 | Equipment and technology for producing synthesis gas through cooperating outer cylinder air gasification with inner cylinder steam gasification |
| CN104099132A (en) * | 2013-04-02 | 2014-10-15 | 吕玉富 | Boiler-front combustible gas generator for fluidized bed steam boiler |
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