阅读说明：本技术 集成型重整制氢装置 (Integrated reforming hydrogen production device ) 是由 唐健 丁桓展 王学圣 苏红艳 何春辉 赵亚丽 王朝 于 2019-09-11 设计创作，主要内容包括：本发明公开了一种集成型重整制氢装置,包括：封闭的外壳,外壳内设置有外筒,外筒内设置有内筒,内、外筒之间的夹层形成反应室,反应室顶部封闭,反应室由下往上依次分隔成重整反应区、水汽转移反应区、选择性甲烷化反应区；内筒中设置有进气通道、排气通道和燃烧器,燃烧器的结构包括：点火装置和燃烧筒,燃烧筒的顶部封闭、底端敞口,燃烧筒的顶部与进气通道相连通,燃烧筒设置在重整反应区对应位置处的内筒中,燃烧筒的外壁与重整反应区对应位置处的内筒的内壁之间形成热辐射通道,热辐射通道的上端与排气通道连通。本发明的优点是：燃烧、反应、进气、排气结构集成于一体,体积大大减小,从而为氢气作为洁净能源的推广提供了更好的载体。(The invention discloses an integrated reforming hydrogen production device, which comprises: the device comprises a closed shell, wherein an outer barrel is arranged in the shell, an inner barrel is arranged in the outer barrel, a reaction chamber is formed by an interlayer between the inner barrel and the outer barrel, the top of the reaction chamber is closed, and the reaction chamber is sequentially divided into a reforming reaction zone, a water vapor transfer reaction zone and a selective methanation reaction zone from bottom to top; be provided with inlet channel, exhaust passage and combustor in the inner tube, the structure of combustor includes: ignition, a combustion section of thick bamboo, the top of a combustion section of thick bamboo is sealed, the bottom is uncovered, the top and the inlet channel of a combustion section of thick bamboo are linked together, a combustion section of thick bamboo sets up in the inner tube of reforming reaction district corresponding position department, forms the heat radiation passageway between the outer wall of a combustion section of thick bamboo and the inner wall of the inner tube of reforming reaction district corresponding position department, and the upper end and the exhaust passage intercommunication of heat radiation passageway. The invention has the advantages that: the combustion, reaction, air intake and exhaust structures are integrated into a whole, and the volume is greatly reduced, so that a better carrier is provided for the popularization of hydrogen as clean energy.)

1. An integrated reforming hydrogen production apparatus comprising: a closed housing, characterized by: an outer barrel is arranged in the shell, an inner barrel is arranged in the outer barrel, a reaction chamber is formed by an interlayer between the inner barrel and the outer barrel, the top of the reaction chamber is sealed, and the reaction chamber is sequentially divided into a reforming reaction area for placing a reforming reaction catalyst, a water vapor transfer reaction area for placing the water vapor transfer reaction catalyst and a selective methanation reaction area for placing the selective methanation reaction catalyst from bottom to top; be provided with inlet channel, exhaust passage and combustor in the inner tube, the structure of combustor includes: ignition, a combustion section of thick bamboo, the top of a combustion section of thick bamboo is sealed, the bottom is uncovered, the top and the inlet channel of a combustion section of thick bamboo are linked together, the gas that is used for the burning passes through in the inlet channel gets into a combustion section of thick bamboo, a combustion section of thick bamboo sets up in the inner tube of reforming reaction district corresponding position department, form the heat radiation passageway between the outer wall of a combustion section of thick bamboo and the inner wall of the inner tube of reforming reaction district corresponding position department, the upper end and the exhaust passage intercommunication of heat radiation passageway, the gas that produces after the burning in the combustion section of thick bamboo outwards discharges in the exhaust passage through the.

2. The integrated reforming hydrogen production apparatus according to claim 1, characterized in that: a plurality of inward concave heat radiation guide grooves are arranged on the inner wall of the inner cylinder of the heat radiation channel area at intervals, and each heat radiation guide groove is arranged along the height direction of the inner cylinder.

3. The integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: and a heat insulation material is filled between the outer shell and the outer cylinder.

4. The integrated reforming hydrogen production apparatus according to claim 3, characterized in that: the heat insulating material is silicon dioxide.

5. The integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the structure of the intake passage and the exhaust passage includes: the heat radiation device comprises a first sleeve, a second sleeve, a third sleeve and a fourth sleeve which are sequentially sleeved from outside to inside, wherein the top ends of the four sleeves are closed, the lower ends of the four sleeves are opened, the top of an interlayer between the first sleeve and an inner cylinder is sealed, an exhaust channel is formed by the interlayer between the first sleeve and the second sleeve, and the lower end of the exhaust channel is communicated with the top end of a heat radiation channel; the intermediate layer between second sleeve and the third sleeve forms first inlet channel, and the intermediate layer between third sleeve and the fourth sleeve forms second inlet channel, and first inlet channel, second inlet channel all are linked together with the flue gas cavity, and the structure of flue gas cavity includes: the shrouding, the shrouding is fixed in the bottom of fourth sleeve inner wall, seals between the top outward flange of combustion barrel and the inner wall of second sleeve, and a plurality of cloth wind mouths have been seted up at the top of combustion barrel, form flue gas cavity between the top of shrouding and combustion barrel.

6. The integrated reforming hydrogen production apparatus according to claim 5, wherein: the top of the first sleeve is provided with an exhaust pipe, the top of the second sleeve is provided with a first air inlet pipe, and the top of the third sleeve is provided with a second air inlet pipe.

7. The integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the inner cylinder and the outer cylinder at the top of the reaction chamber are fixed in a sealing way through a first flange, and a hydrogen outlet is formed in the first flange.

8. The integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the top of the reforming reaction zone, the top and bottom of the water-vapor transfer reaction zone, and the top and bottom of the selective methanation reaction zone are separated by an orifice plate.

9. The integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the ignition device comprises ignition electrodes, and the ignition ends of the ignition electrodes penetrate through the top of each sleeve from the outside of the shell and then extend downwards to the upper end part in the combustion cylinder.

Technical Field

The invention relates to the technical field of reforming hydrogen production equipment.

Background

Environmental pollution and the constant consumption of non-renewable fossil fuels are the focus of global attention. The development of clean, efficient and sustainable new energy has become common knowledge. Hydrogen energy has become a clean energy source recognized by the market because of its advantages such as high combustion heat value, no pollution to the environment by combustion product water, etc.

Because natural gas resources have proved the continuous increase of reserves and the technical advantages of natural gas hydrogen production, natural gas hydrogen production has become one of the more major hydrogen production methods at present. The hydrogen production process by reforming natural gas mainly comprises the following steps: firstly, steam reforming reaction: in the reaction, raw material methane and steam react under the condition of a steam reforming reaction catalyst to prepare primary reformed gas, the primary reformed gas mainly comprises hydrogen and carbon monoxide, a large amount of heat needs to be absorbed in the step, and the temperature is usually required to be maintained at 800-1000 ℃. Secondly, water vapor transfer catalytic reaction: in the reaction, carbon monoxide in the primary reformed gas reacts with water under the condition of a water-vapor transfer catalyst, so that the carbon monoxide in the primary reformed gas is removed to prepare a secondary reformed gas. The reaction requires controlling the temperature between 300 ℃ and 350 ℃. Thirdly, selective methanation reaction: in the reaction, under the condition of a selective methanation reaction catalyst, carbon monoxide in the secondary reformed gas is further reacted and removed, so that purified hydrogen is prepared.

The existing reforming hydrogen production equipment is relatively large. In order to further popularize hydrogen energy, the company develops an integrated reforming hydrogen production device, the volume of the integrated reforming hydrogen production device is greatly reduced, and the integrated reforming hydrogen production device is extremely suitable for being used in a scene with limited installation space and is particularly suitable for household use.

Disclosure of Invention

The purpose of the invention is: provides an integrated reforming hydrogen production device, which has greatly reduced volume and can effectively save installation space.

In order to achieve the purpose, the invention adopts the technical scheme that: an integrated reforming hydrogen production apparatus comprising: the device comprises a closed shell, wherein an outer barrel is arranged in the shell, an inner barrel is arranged in the outer barrel, a reaction chamber is formed by an interlayer between the inner barrel and the outer barrel, the top of the reaction chamber is closed, and the reaction chamber is sequentially divided into a reforming reaction area for placing a reforming reaction catalyst, a water vapor transfer reaction area for placing a water vapor transfer reaction catalyst and a selective methanation reaction area for placing a selective methanation reaction catalyst from bottom to top; be provided with inlet channel, exhaust passage and combustor in the inner tube, the structure of combustor includes: ignition, a combustion section of thick bamboo, the top of a combustion section of thick bamboo is sealed, the bottom is uncovered, the top and the inlet channel of a combustion section of thick bamboo are linked together, the gas that is used for the burning passes through in the inlet channel gets into a combustion section of thick bamboo, a combustion section of thick bamboo sets up in the inner tube of reforming reaction district corresponding position department, form the heat radiation passageway between the outer wall of a combustion section of thick bamboo and the inner wall of the inner tube of reforming reaction district corresponding position department, the upper end and the exhaust passage intercommunication of heat radiation passageway, the gas that produces after the burning in the combustion section of thick bamboo outwards discharges in the exhaust passage through the.

Further, in the integrated reforming hydrogen production apparatus, a plurality of inwardly recessed thermal radiation guide grooves are arranged at intervals on the inner wall of the inner cylinder in the thermal radiation channel region, and each thermal radiation guide groove is arranged along the height direction of the inner cylinder.

Further, in the integrated reforming hydrogen production apparatus, a heat insulating material is filled between the outer casing and the outer casing.

Furthermore, in the integrated reforming hydrogen production apparatus, the heat insulating material is silica.

Further, in the integrated reforming hydrogen production apparatus, the structure of the intake passage and the exhaust passage includes: the heat radiation device comprises a first sleeve, a second sleeve, a third sleeve and a fourth sleeve which are sleeved from outside to inside in sequence, wherein the top ends of the four sleeves are closed, the lower ends of the four sleeves are opened, the top of an interlayer between the first sleeve and an inner cylinder is sealed, an exhaust channel is formed by the interlayer between the first sleeve and the second sleeve, and the lower end of the exhaust channel is communicated with the top end of a heat radiation channel; the intermediate layer between second sleeve and the third sleeve forms first inlet channel, and the intermediate layer between third sleeve and the fourth sleeve forms second inlet channel, and first inlet channel, second inlet channel all are linked together with the flue gas cavity, and the structure of flue gas cavity includes: the shrouding, the shrouding is fixed in the bottom of fourth sleeve inner wall, seals between the top outward flange of combustion barrel and the inner wall of second sleeve, and a plurality of cloth wind mouths have been seted up at the top of combustion barrel, form flue gas cavity between the top of shrouding and combustion barrel.

Still further, in the integrated reforming hydrogen production device, an exhaust pipe is arranged at the top of the first sleeve, a first air inlet pipe is arranged at the top of the second sleeve, and a second air inlet pipe is arranged at the top of the third sleeve.

Further, in the integrated reforming hydrogen production device, the inner cylinder and the outer cylinder at the top of the reaction chamber are fixed in a sealing manner by the first flange, and the first flange is provided with the hydrogen outlet.

Further, in the integrated reforming hydrogen production apparatus, the top of the reforming reaction region, the top and the bottom of the water-vapor transfer reaction region, and the top and the bottom of the selective methanation reaction region are separated by an orifice plate.

Further, the integrated reforming hydrogen production device comprises an ignition electrode, and an ignition end of the ignition electrode penetrates through the top of each sleeve from the outside of the shell and then extends downwards to the upper end part in the combustion cylinder.

The invention has the advantages that: the hydrogen production equipment integrates the combustion, reaction, air intake and exhaust structures into a whole, the total height of the hydrogen production equipment is within 1 meter, and the volume is greatly reduced, so that a better carrier is provided for the popularization of hydrogen as clean energy. And secondly, the heat radiation guide groove of the inner cylinder inner wall of the heat radiation channel area effectively increases the heat radiation area, thereby greatly improving the heat transfer efficiency, and simultaneously guiding the heat, so that the heat transfer is more uniform. And thirdly, the inner barrel and the outer barrel are sleeved to form a reaction chamber, an exhaust channel, a first air inlet channel and a second air inlet channel are formed by the first sleeve, the second sleeve, the third sleeve and the fourth sleeve which are sequentially sleeved from outside to inside, and the reaction chamber, the air inlet structure and the exhaust structure are compact, ingenious and reasonable.

Drawings

Fig. 1 is a schematic structural diagram of an integrated reforming hydrogen production apparatus according to the present invention.

Fig. 2 is a schematic view of the structure of the intake passage, the exhaust passage, and the burner of fig. 1.

Fig. 3 is a schematic view showing the arrangement of heat radiation guide grooves on the inner wall of the inner cylinder in the region of the heat radiation passage in fig. 1.

Detailed Description

The invention is described in further detail below with reference to the figures and preferred embodiments.

As shown in fig. 1, 2, and 3, the integrated reforming hydrogen production apparatus includes: the heat insulation and heat preservation device comprises a closed shell 1, wherein an outer cylinder 2 is arranged in the shell 1, in the embodiment, a heat insulation material is filled between the shell 1 and the outer cylinder 2, and the heat insulation material mainly adopts silicon dioxide. The heat insulating material forms a heat insulating layer 102, and the heat insulating layer 102 can effectively prevent the heat exchange between the inside of the casing 1 and the outside of the casing 1.

An inner cylinder 3 is arranged in the outer cylinder 2, a reaction chamber 4 is formed by an interlayer between the inner cylinder 3 and the outer cylinder 2, the top of the reaction chamber 4 is sealed, specifically, the inner cylinder 3 and the outer cylinder 2 at the top of the reaction chamber 4 are sealed and fixed through a flange 40, and a hydrogen outlet is arranged on the flange 40. The position of the hydrogen outlet can be set according to actual conditions, and the hydrogen outlet is communicated to the outside of the shell 1 through the connecting pipe, so that hydrogen is output outwards.

The reaction chamber 4 is divided into a reforming reaction region 41 in which a reforming reaction catalyst is placed, a water vapor shift reaction region 42 in which a water vapor shift reaction catalyst is placed, and a selective methanation reaction region 43 in which a selective methanation reaction catalyst is placed, in this order from the bottom up. In this embodiment, the top of the reforming reaction region 41, the top and the bottom of the water vapor shift reaction region 42, and the top and the bottom of the selective methanation reaction region 43 are separated by a porous plate, specifically, a first porous plate 411 at the top of the reforming reaction region 41, a second porous plate 421 at the bottom of the water vapor shift reaction region 42, and the top of the water vapor shift reaction region 42 and the porous plate at the bottom of the selective methanation reaction region 43 are shared as a third porous plate 422; the orifice plate at the top of selective methanation reaction zone 43 is a fourth orifice plate 431. The reaction chamber 4 is partitioned by using the porous plate, so that the gas generated by the reaction in the reforming reaction region 41 can enter the water vapor transfer reaction region 42 for reaction, the gas generated by the reaction in the water vapor transfer reaction region 42 can enter the selective methanation reaction region 43 for reaction, and finally, the generated hydrogen can be discharged outwards through the fourth porous plate 431.

An intake passage, an exhaust passage, and a burner 6 are provided in the inner cylinder 3. The structure of the burner 6 comprises: an ignition device 61 and a combustion can 62. The ignition device 61 comprises an ignition electrode 611, and the ignition end of the ignition electrode 611 penetrates through the top of each sleeve from the outside of the housing 1 and then extends downwards to the upper end of the combustion cylinder 62.

The top of the combustion cylinder 62 is closed, the bottom end is open, the top of the combustion cylinder 62 is communicated with the air inlet channel, gas for combustion enters the combustion cylinder 62 through the air inlet channel, the combustion cylinder 62 is arranged in the inner cylinder 3 at the position corresponding to the reforming reaction zone 41, a heat radiation channel 11 is formed between the outer wall of the combustion cylinder 62 and the inner wall of the inner cylinder 3 at the position corresponding to the reforming reaction zone 41, the upper end of the heat radiation channel 11 is communicated with the exhaust channel, and gas generated after combustion in the combustion cylinder 52 is discharged from the exhaust channel through the heat radiation channel 11. Further, in order to improve the heat transfer efficiency, a plurality of inwardly recessed heat radiation guide grooves 31 are provided at intervals on the inner wall of the inner cylinder 3 in the region of the heat radiation passage 11 in this embodiment, and each heat radiation guide groove 31 is provided along the height direction of the inner cylinder 3. The inner wall of the inner cylinder 3 in the region of the heat radiation channel 11 is provided with inwardly recessed heat radiation guide grooves 31 at even intervals, and the purpose is that: effectively increase the heat radiation area to improve heat transfer efficiency, guide the heat simultaneously, make thermal transmission more even.

Specifically, the structure of the intake passage and the exhaust passage includes: the inner cylinder 3 is internally provided with a first sleeve 7, a second sleeve 8, a third sleeve 9 and a fourth sleeve 10 which are sequentially sleeved from outside to inside, the top ends of the four sleeves are closed, and the lower ends of the four sleeves are opened. The top of the interlayer between the first sleeve 7 and the inner cylinder 3 is sealed, and specifically, the top of the first sleeve 7 and the top of the inner cylinder 3 are sealed and fixed by a second flange 71. The interlayer between the first sleeve 7 and the second sleeve 8 forms an exhaust passage 100, and the lower end of the exhaust passage 100 communicates with the top end of the heat radiation passage 11. The interlayer between the second sleeve 8 and the third sleeve 9 forms a first air intake passage 200, and the interlayer between the third sleeve 9 and the fourth sleeve 10 forms a second air intake passage 300. An exhaust pipe communicated with the outside of the shell 1 is arranged at the top of the first sleeve 7, a first air inlet pipe is arranged at the top of the second sleeve 8, and a second air inlet pipe is arranged at the top of the third sleeve 9. The gas in the exhaust passage 100 is discharged from the exhaust pipe to the outside. The mixture of methane and air for combustion enters the first intake passage 200 through the first intake pipe. The other gas for combustion enters the second intake passage 300 through the second intake pipe. The specific positions of the exhaust pipe, the first air inlet pipe and the second air inlet pipe are set according to actual conditions.

The first air inlet channel 200 and the second air inlet channel 300 are both communicated with the flue gas chamber 12, and the structure of the flue gas chamber 12 comprises: the sealing plate 121 and the sealing plate 121 are fixed to the bottom seal of the inner wall of the fourth sleeve 10, the outer edge of the top of the combustion cylinder 62 is sealed with the inner wall of the second sleeve 8, a plurality of air distribution holes 621 are formed in the top of the combustion cylinder 62, and a flue gas chamber 12 is formed among the sealing plate 121, the top of the combustion cylinder 62 and the inner wall of the second sleeve 8 below the sealing plate 121. The flue gas chamber 12 is arranged for the purpose of: the uniformity of gas mixing is improved. The first intake passage 200 conveys a mixture of methane and air for combustion, and the second intake passage 300 is provided in the present embodiment for the purpose of: some of the combustible exhaust is delivered through the second inlet channel 300 into the combustion canister 62 for combustion, thereby making full use of the exhaust, such as the exhaust from a fuel cell.

The working principle is simply introduced as follows: the mixture of methane gas and air for combustion enters the flue gas chamber 12 through the first inlet channel 200, and if there is any remaining combustible waste gas available, it can enter the flue gas chamber 12 through the second inlet channel 300. The mixed gas in the flue gas chamber 12 enters the combustion cylinder 62 through the air distribution hole 621, the ignition electrode 611 ignites to enable the mixed gas to be combusted to release a large amount of heat, the flue gas carrying the large amount of heat enters the heat radiation channel 11 through the bottom of the combustion cylinder 62, the heat is rapidly transferred to the reforming reaction zone 41 under the guidance of the heat radiation guide groove 31 of the heat radiation channel, so that sufficient heat is provided for the reaction of the reforming reaction zone 41, and then the gas in the heat radiation channel 11 is discharged out of the housing 1 through the exhaust channel 100. The reforming reaction region 41 reacts to generate reformed gas containing hydrogen and carbon monoxide, the reformed gas moves upwards and enters the water vapor shift reaction region 42, the water vapor shift reaction region 42 reacts to remove a large amount of carbon monoxide in the reformed gas, the gas from which a large amount of carbon monoxide is removed in the water vapor shift reaction region 42 continues to move upwards and enters the selective methanation reaction region 43 to further remove carbon monoxide, and the purified hydrogen in the selective methanation reaction region 43 continues to be output upwards from a hydrogen outlet.

The invention has the advantages that: the hydrogen production equipment integrates the combustion, reaction, air intake and exhaust structures into a whole, the total height of the hydrogen production equipment is within 1 meter, the volume is greatly reduced, and the installation space is effectively saved, so that a better carrier is provided for the popularization of hydrogen as clean energy. Secondly, the heat radiation guide way 31 of the inner wall of the inner cylinder 3 in the heat radiation channel 11 area effectively increases the heat radiation area, thereby greatly improving the heat transfer efficiency, and simultaneously guiding the heat, so that the heat transfer is more uniform. Thirdly, the inner cylinder 3 and the outer cylinder 2 are sleeved to form a reaction chamber 4, and an exhaust channel 100, a first air inlet channel 200 and a second air inlet channel 300 are formed by a first sleeve 7, a second sleeve 8, a third sleeve 9 and a fourth sleeve 10 which are sleeved in sequence from outside to inside.