阅读说明：本技术 集成型重整制氢装置中的热利用机构 (Heat utilization mechanism in integrated reforming hydrogen production device ) 是由 苏红艳 丁桓展 王学圣 唐健 赵亚丽 崔鸿 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中的热利用机构,包括：外壳,外壳内设置有外筒和内筒,内、外筒之间形成反应室,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；重整反应区位置处的内筒中设置有燃烧筒,燃烧筒的外壁与重整反应区位置处内筒的内壁之间形成热辐射通道,燃烧筒的下端口与热辐射通道连通,重整反应区与水汽转移反应区之间设置有蒸汽发生器,蒸汽发生器上方的外筒外设置有三级换热器,蒸汽发生器上方的内筒内设置有二级换热器,二级换热器的输出端与三级换热器的输入端相连通,三级换热器的输出端与蒸汽发生器的输入端相连通。本发明的优点是：充分利用重整反应过程中的热量,又不会增大设备体积。(The invention discloses a heat utilization mechanism in an integrated reforming hydrogen production device, which comprises: the device comprises a shell, wherein an outer barrel and an inner barrel are arranged in the shell, a reaction chamber is formed between the inner barrel and the outer barrel, 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 the combustion barrel in the inner tube of reforming reaction district position department, form the heat radiation passageway between the outer wall of combustion barrel and the inner wall of reforming reaction district position department inner tube, the lower port and the heat radiation passageway intercommunication of combustion barrel, be provided with steam generator between reforming reaction district and the steam shift reaction district, the urceolus of steam generator top is provided with tertiary heat exchanger outward, be provided with the second grade heat exchanger in the inner tube of steam generator top, the output of second grade heat exchanger is linked together with the input of tertiary heat exchanger, the output of tertiary heat exchanger is linked together with steam generator's input. The invention has the advantages that: the heat in the reforming reaction process is fully utilized, and the volume of the equipment is not increased.)

1. A heat utilization mechanism in an integrated reforming hydrogen production device comprises: 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 the combustion barrel in the inner tube of reforming reaction district position department, form the heat radiation passageway between the outer wall of combustion barrel and the inner wall of reforming reaction district position department inner tube, the lower port and the heat radiation passageway intercommunication of combustion barrel, be provided with steam generator in the reacting chamber between reforming reaction district and the steam shift reaction district, the urceolus of steam generator top is provided with tertiary heat exchanger outward, be provided with the secondary heat exchanger in the inner tube of steam generator top, the output of secondary heat exchanger is linked together with the input of tertiary heat exchanger, the output of tertiary heat exchanger is linked together with steam generator's input.

2. The heat utilization mechanism in an integrated reforming hydrogen production apparatus according to claim 1, characterized in that: the top of the reaction chamber is provided with a heat exchange cavity, the top of the heat exchange cavity is provided with a hydrogen discharge pipe, the bottom of the heat exchange cavity is communicated with the top of the selective methanation reaction zone, a primary heat exchanger is arranged in the heat exchange cavity, and the output end of the primary heat exchanger is communicated with the input end of a secondary heat exchanger.

3. The heat utilization mechanism in the integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the steam generator, the third-stage heat exchanger, the second-stage heat exchanger and the first-stage heat exchanger are all coil type heat exchangers.

4. The heat utilization mechanism in the integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: a plurality of heat radiation guide grooves are arranged on the inner wall and the outer wall of the inner barrel of the heat radiation channel area at equal intervals, each heat radiation guide groove on the inner wall and the outer wall of the inner barrel is arranged along the height direction of the inner barrel, and each heat radiation guide groove on the inner wall or the outer wall of the inner barrel is sunken towards the body direction of the inner barrel.

5. The heat utilization mechanism in the integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the mounting structure of the steam generator includes: an installation cylinder body protruding towards the outer cylinder direction is arranged on the outer wall of the inner cylinder between the reforming reaction area and the water vapor transfer reaction area, and the steam generator is installed on the outer wall of the installation cylinder body.

6. The heat utilization mechanism in the integrated reforming hydrogen production apparatus according to claim 1 or 2, characterized in that: the inner cylinder above the combustion cylinder is internally provided with a first sleeve, a second sleeve and a third sleeve which are sequentially sleeved from outside to inside, the top ends of the first sleeve, the second sleeve and the third sleeve are closed, the lower ends of the first sleeve, the second sleeve and the third sleeve are open, the top of an interlayer between the first sleeve and the inner cylinder is sealed, an exhaust channel is formed by the interlayer between the first sleeve and the second sleeve, the lower end of the exhaust channel is communicated with the top end of the heat radiation channel, and an exhaust pipe is arranged at the top of the exhaust channel; an interlayer between the second sleeve and the third sleeve forms a first air inlet channel; the bottom of first inlet channel is provided with flue gas cavity, and flue gas cavity's structure includes: the sealing plate is fixed on the inner wall of the bottom of the third sleeve, the outer edge of the top of the combustion cylinder is sealed with the inner wall of the second sleeve, a plurality of air distribution ports are formed in the top of the combustion cylinder, and a flue gas cavity is formed among the sealing plate, the inner wall of the second sleeve below the sealing plate and the top of the combustion cylinder; the lower end of the first air inlet channel is communicated with the smoke cavity.

7. The heat utilization mechanism in an integrated reforming hydrogen production apparatus according to claim 6, characterized in that: the secondary heat exchanger is arranged in the interlayer between the first sleeve and the inner cylinder.

8. The heat utilization mechanism in an integrated reforming hydrogen production apparatus according to claim 6, characterized in that: and a heat-insulating material is filled in an interlayer between the inner cylinder and the first sleeve of the steam generator mounting area.

9. The heat utilization mechanism in an integrated reforming hydrogen production apparatus according to claim 6, characterized in that: still be provided with ignition in the inner tube, ignition's structure includes: ignition tube, the lower port of ignition tube is the ignition mouth, ignition tube sets up in the third sleeve, and ignition tube's upper end passes the third sleeve in proper order, the second sleeve, the casing is stretched out at first telescopic top, ignition tube's ignition mouth and flue gas cavity's top intercommunication, be provided with ignition electrode and ignition rod in the ignition tube, ignition electrode's the ignition end and ignition rod's ignition end all are located the ignition mouth of combustion tube top, be provided with the gas passageway that ignites in the ignition tube, the export and the ignition mouth of igniting the gas passageway are linked together, be provided with the gas input tube that ignites on the ignition tube.

10. The heat utilization mechanism in 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.

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. Further, in order to cooperate with the integrated reforming hydrogen production apparatus, my company has developed a heat utilization mechanism in the integrated reforming hydrogen production apparatus.

Disclosure of Invention

The purpose of the invention is: provided is a heat utilization mechanism in an integrated reforming hydrogen production device, which can fully utilize the heat in the reforming hydrogen production process and can not increase the volume of the reforming hydrogen production device.

In order to achieve the purpose, the invention adopts the technical scheme that: a heat utilization mechanism in an integrated reforming hydrogen production device 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 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 the combustion barrel in the inner tube of reforming reaction district position department, form the heat radiation passageway between the outer wall of combustion barrel and the inner wall of reforming reaction district position department inner tube, the lower port and the heat radiation passageway intercommunication of combustion barrel, be provided with steam generator in the reacting chamber between reforming reaction district and the steam shift reaction district, the urceolus of steam generator top is provided with tertiary heat exchanger outward, be provided with the secondary heat exchanger in the inner tube of steam generator top, the output of secondary heat exchanger is linked together with the input of tertiary heat exchanger, the output of tertiary heat exchanger is linked together with steam generator's input.

Further, according to the heat utilization mechanism in the integrated reforming hydrogen production device, a heat exchange cavity is arranged at the top of the reaction chamber, a hydrogen gas discharge pipe is arranged at the top of the heat exchange cavity, the bottom of the heat exchange cavity is communicated with the top of the selective methanation reaction region, a primary heat exchanger is arranged in the heat exchange cavity, and the output end of the primary heat exchanger is communicated with the input end of a secondary heat exchanger.

Further, in the heat utilization mechanism in the integrated reforming hydrogen production device, the steam generator, the tertiary heat exchanger, the secondary heat exchanger and the primary heat exchanger are all coil type heat exchangers.

Further, in the heat utilization mechanism in the integrated reforming hydrogen production apparatus, a plurality of heat radiation guide grooves are arranged on the inner wall and the outer wall of the inner cylinder in the heat radiation channel region at intervals, each of the heat radiation guide grooves on the inner wall and the outer wall of the inner cylinder is arranged along the height direction of the inner cylinder, and each of the heat radiation guide grooves on the inner wall or the outer wall of the inner cylinder is recessed towards the body direction of the inner cylinder.

Further, in the heat utilization mechanism in the integrated reforming hydrogen production apparatus, the mounting structure of the steam generator includes: an installation cylinder body protruding towards the outer cylinder direction is arranged on the outer wall of the inner cylinder between the reforming reaction area and the water vapor transfer reaction area, and the steam generator is installed on the outer wall of the installation cylinder body.

Further, in the heat utilization mechanism in the integrated reforming hydrogen production apparatus, a first sleeve, a second sleeve and a third sleeve are arranged in an inner cylinder above a combustion cylinder, the first sleeve, the second sleeve and the third sleeve are sequentially sleeved from outside to inside, the top ends of the first sleeve, the second sleeve and the third sleeve are closed, the lower ends of the first sleeve, the second sleeve and the third sleeve are open, the top of an interlayer between the first sleeve and the inner cylinder is sealed, an exhaust channel is formed by the interlayer between the first sleeve and the second sleeve, the lower end of the exhaust channel is communicated with the top end of the heat radiation channel, and an exhaust pipe is arranged at the top of the exhaust channel; an interlayer between the second sleeve and the third sleeve forms a first air inlet channel; the bottom of first inlet channel is provided with flue gas cavity, and flue gas cavity's structure includes: the sealing plate is fixed on the inner wall of the bottom of the third sleeve, the outer edge of the top of the combustion cylinder is sealed with the inner wall of the second sleeve, a plurality of air distribution ports are formed in the top of the combustion cylinder, and a flue gas cavity is formed among the sealing plate, the inner wall of the second sleeve below the sealing plate and the top of the combustion cylinder; the lower end of the first air inlet channel is communicated with the smoke cavity.

Further, in the heat utilization mechanism in the integrated reforming hydrogen production device, the secondary heat exchanger is arranged in the interlayer between the first sleeve and the inner cylinder.

Further, in the heat utilization mechanism in the integrated reforming hydrogen production apparatus, a heat insulating material is filled in an interlayer between the inner cylinder of the steam generator installation region and the first sleeve.

Further, the heat utilization mechanism in the integrated reforming hydrogen production device, wherein an ignition device is further arranged in the inner cylinder, and the ignition device structurally comprises: ignition tube, the lower port of ignition tube is the ignition mouth, ignition tube sets up in the third sleeve, and ignition tube's upper end passes the third sleeve in proper order, the second sleeve, the casing is stretched out at first telescopic top, ignition tube's ignition mouth and flue gas cavity's top intercommunication, be provided with ignition electrode and ignition rod in the ignition tube, ignition electrode's the ignition end and ignition rod's ignition end all are located the ignition mouth of combustion tube top, be provided with the gas passageway that ignites in the ignition tube, the export and the ignition mouth of igniting the gas passageway are linked together, be provided with the gas input tube that ignites on the ignition tube.

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

The invention has the advantages that: firstly, the steam generator 101, the tertiary heat exchanger, the secondary heat exchanger and the primary heat exchanger are arranged in the integrated reforming hydrogen production device, so that the heat of each reaction area in the reaction chamber is fully utilized, and the use cost of the hydrogen production device is reduced. The steam generator is arranged on the mounting cylinder body, and the tertiary heat exchanger and the secondary heat exchanger are respectively arranged outside the outer cylinder and inside the inner cylinder, so that the mounting structure is compact and ingenious, the size of the whole reforming hydrogen production device can be effectively reduced, and reliable guarantee is provided for miniaturization of the reforming hydrogen production device.

Drawings

Fig. 1 is a schematic structural view of a heat utilization mechanism in the integrated reforming hydrogen production apparatus according to the present invention.

Fig. 2 is an enlarged structural schematic diagram of the ignition device and the intake and exhaust passages in 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 heat utilization mechanism in 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, an inner cylinder 3 is arranged in the outer cylinder 2, in order to prevent heat loss, a heat-insulation material is filled between the shell 1 and the outer cylinder 2 in the embodiment, and the heat-insulation material mainly adopts silicon dioxide. The interlayer between the inner cylinder 3 and the outer cylinder 2 forms a reaction chamber 4, the top of the reaction chamber 4 is closed, and the outer cylinder 2 and the inner cylinder 3 on the top of the reaction chamber 4 are sealed and fixed by a first flange 40 in the embodiment. 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. A combustion cylinder 62 is arranged in the inner cylinder 3 at the position of 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 of the reforming reaction zone 41, and the lower port of the combustion cylinder 62 is communicated with the heat radiation channel 11. A steam generator 101 is arranged in the reaction chamber 4 between the reforming reaction area 41 and the water vapor transfer reaction area 42, a tertiary heat exchanger 102 is arranged outside the outer cylinder 2 above the steam generator 101, a secondary heat exchanger 103 is arranged inside the inner cylinder 3 above the steam generator 101, the output end of the secondary heat exchanger 103 is communicated with the input end of the tertiary heat exchanger 102, and the output end of the tertiary heat exchanger 102 is communicated with the input end of the steam generator 101. In this embodiment, in order to further utilize the heat of the output hydrogen, a heat exchange chamber 104 is disposed at the top of the reaction chamber 4, a hydrogen discharge pipe 105 is disposed at the top of the heat exchange chamber 104, the bottom of the heat exchange chamber 104 is communicated with the top of the selective methanation reaction region 43, a primary heat exchanger 106 is disposed in the heat exchange chamber 104, and an output end of the primary heat exchanger 106 is communicated with an input end of the secondary heat exchanger 103. The steam generator 101, the tertiary heat exchanger 102, the secondary heat exchanger 103 and the primary heat exchanger 106 are all coil type heat exchangers. The coil type heat exchanger has the advantages that: the space can be effectively saved, and the heat exchange efficiency is high.

The mounting structure of the steam generator 101 includes: an installation cylinder 301 protruding toward the outer cylinder 2 is provided on the outer wall of the inner cylinder 3 between the reforming reaction zone 41 and the water vapor shift reaction zone 42, and the coil steam generator 101 is installed on the outer wall of the installation cylinder 301.

In this embodiment, a plurality of thermal radiation guide grooves 31 are provided at intervals on the inner wall and the outer wall of the inner cylinder 3 at the position of the thermal radiation passage 11, each thermal radiation guide groove 31 on the inner wall and the outer wall of the inner cylinder 3 is provided along the height direction of the inner cylinder 3, and each thermal radiation guide groove 31 on the inner wall or the outer wall of the inner cylinder 3 is recessed toward the body direction of the inner cylinder 3. The inner wall and then the outer wall of inner tube 3 all evenly spaced and set up heat radiation guide way 31, its aim at: the heat radiation guide groove 31 is arranged on the inner wall and the outer wall of the inner barrel 3, so that the heat radiation area is effectively increased, the heat transfer efficiency is improved, and the heat is guided simultaneously, so that the heat transfer is more uniform.

The inner cylinder 3 above the combustion cylinder 62 is provided with a first sleeve 7, a second sleeve 8 and a third sleeve 9, and the first sleeve 7, the second sleeve 8 and the third sleeve 9 are sequentially sleeved from outside to inside. The top ends of the first sleeve 7, the second sleeve 8 and the third sleeve 9 are closed, and the lower ends of the first sleeve, the second sleeve and the third sleeve are open. The top of the interlayer between the first sleeve 7 and the inner cylinder 3 is sealed, and in this embodiment, the top of the interlayer between the first sleeve 7 and the inner cylinder 3 is 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, the lower end of the exhaust passage 100 is communicated with the top end of the heat radiation passage 11, the top of the exhaust passage 100 is provided with an exhaust pipe 1001, and the exhaust pipe 1001 exhausts the exhaust gas in the exhaust passage 100 to the outside of the housing 1. The interlayer between the second sleeve 8 and the third sleeve 9 forms a first air intake passage 200, and an air intake pipe 2001 is provided at the top of the first passage 200. The bottom of the first air inlet channel 200 is provided with a flue gas chamber 12, and the structure of the flue gas chamber 12 comprises: the sealing plate 121, the sealing plate 121 is fixed on the inner wall of the bottom of the third sleeve 9, the outer edge of the top of the combustion cylinder 62 is sealed with the inner wall of the second sleeve 8, the top of the combustion cylinder 62 is provided with a plurality of air distribution holes 621, and a flue gas chamber 12 is formed among the sealing plate 121, the inner wall of the second sleeve 8 below the sealing plate 121 and the top of the combustion cylinder 62; the lower end of the first inlet channel 200 communicates with the flue gas chamber 12.

The secondary heat exchanger 103 is arranged in an interlayer between the first sleeve 7 and the inner barrel 3.

The interlayer between the inner tube 3 and the first sleeve 7 in the region where the steam generator 101 is installed is filled with a heat insulating material, and the heat insulating material is provided in this region to prevent heat from being transferred to the inside of the inner tube 3.

In this embodiment, an ignition device 6 is further disposed in the inner cylinder 3, and the ignition device 6 includes: ignition tube 601, the lower port of ignition tube 601 is ignition port 602, ignition tube 601 sets up in third sleeve 9, and the upper end of ignition tube 601 passes third sleeve 9 in proper order, second sleeve 8, the top of first sleeve 7 stretches out casing 1, ignition port 601 and the top of flue gas chamber 12 of ignition tube 601 communicate, be provided with ignition electrode 603 and ignition bar 604 in the ignition tube 601, the ignition end of ignition electrode 603 and the ignition end of ignition bar 604 all are located the ignition port 602 of combustor 62 top, be provided with ignition gas passageway 604 in the ignition tube 601, the export and the ignition port 602 of ignition gas passageway 604 are linked together, be provided with ignition gas input tube 605 on the ignition tube 601. The ignition end of the ignition electrode 603 and the ignition bar 604 are arranged in the ignition port 602, so that the generation of carbon deposition can be effectively slowed down, and the service lives of the ignition electrode 603 and the ignition bar 604 are prolonged.

The working principle is as follows: the mixed gas of methane gas and air for combustion enters the flue gas chamber 12 through the air inlet pipe 2001 and the first air inlet channel 200, and the gas in the flue gas chamber 12 enters the combustion cylinder 62 from the air distribution port 621. The ignition gas enters the ignition port 602 through the ignition gas channel 604, after the ignition end of the ignition electrode 603 and the ignition end of the ignition rod 604 are ignited, the ignited gas is sprayed into the combustion cylinder 62 through the ignition port 602, the gas in the combustion cylinder 62 is combusted to release a large amount of energy, and the temperature of combustion in the combustion cylinder 62 can reach about 1100 ℃. The flue gas with a large amount of heat enters the heat radiation channel 11 downwards through the bottom of the combustion cylinder 62, and the heat is rapidly transferred to the reforming reaction zone 41 under the guidance of the heat radiation guide grooves 31 on the inner side and the outer side of the heat radiation channel 11, so that sufficient heat is provided for the reaction of the reforming reaction zone 41, and the gas in the heat radiation channel 11 moves upwards and is discharged out of the housing 1 through the exhaust channel 100 and the exhaust pipe 1001. The flue gases in the exhaust channel 100 will transfer heat to the secondary heat exchanger 103 in the interlayer between the first sleeve 7 and the inner sleeve 3.

The reforming reaction zone 41 reacts to generate a reformed gas containing hydrogen and carbon monoxide, and the temperature of the reforming reaction zone 41 is as high as 800-1000 ℃. The temperature of the reformed gas reaches 600-800 ℃, the reformed gas is conveyed upwards to transfer heat to the steam generator 101, then the reformed gas enters the water vapor transfer reaction zone 42, the water vapor transfer reaction zone 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 transfer reaction zone 42 continuously moves upwards to enter the selective methanation reaction zone 43 to further remove carbon monoxide, and the purified hydrogen in the selective methanation reaction zone 43 is continuously output upwards. The third-stage heat exchanger 102 and the second-stage heat exchanger 103 play a good role in temperature regulation, so that the reaction temperature of the water vapor transfer reaction zone 42 is controlled to be 300-350 ℃, and the reaction temperature of the selective methanation reaction zone 43 is controlled to be 160-190 ℃. The hydrogen gas output from the water vapor transfer reaction zone 42 enters the heat exchange chamber 104 and is then discharged through the hydrogen gas discharge pipe 105. The heat of the hydrogen is transferred to the primary heat exchanger 106.

External water, usually deionized water, enters the primary heat exchanger 106 at the input, and the deionized water absorbs the heat of the hydrogen and is preheated. The deionized water preheated in the primary heat exchanger 106 enters the secondary heat exchanger 103 from the output end of the primary heat exchanger 106, the temperature of the deionized water in the secondary heat exchanger 103 is increased after the deionized water further absorbs heat, and the deionized water in the secondary heat exchanger 103 enters the tertiary heat exchanger 102. The temperature of the deionized water in the tertiary heat exchanger 102 is continuously raised and enters the steam generator 101. The deionized water in the steam generator 101 absorbs heat to form steam, and the steam output from the output of the steam generator 101 is usually used as steam for the reaction in the reforming reaction zone 41. Of course, the water vapor output from the output of the steam generator 101 may also be supplied to the outside.

The invention has the advantages that: firstly, a steam generator 101, a tertiary heat exchanger 102, a secondary heat exchanger 103 and a primary heat exchanger 106 are arranged in the integrated reforming hydrogen production device, so that the heat of each reaction area in the reaction chamber 4 is fully utilized, and the use cost of the hydrogen production device is reduced. Secondly, steam generator 101 sets up on installation barrel 301, tertiary heat exchanger 102 and secondary heat exchanger 103 set up respectively outside urceolus 2 and in inner tube 3, such mounting structure is compact ingenious, can effectively reduce whole reforming hydrogen plant's volume to provide reliable guarantee for reforming hydrogen plant's miniaturization, provide the condition for clean energy promotes to more fields.