CN110002401B - Furnace tube installation and fixation method applied to hydrocarbon-steam conversion hydrogen production reformer - Google Patents
Furnace tube installation and fixation method applied to hydrocarbon-steam conversion hydrogen production reformer Download PDFInfo
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- CN110002401B CN110002401B CN201910428586.4A CN201910428586A CN110002401B CN 110002401 B CN110002401 B CN 110002401B CN 201910428586 A CN201910428586 A CN 201910428586A CN 110002401 B CN110002401 B CN 110002401B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 title claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 24
- 239000001257 hydrogen Substances 0.000 title claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 24
- 238000006243 chemical reaction Methods 0.000 title description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 32
- 238000000629 steam reforming Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 9
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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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
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
The furnace tube installation and fixation method is used for sealing connection between a plurality of furnace tubes arranged in a plurality of rows and a reformer body, wherein the furnace tubes vertically penetrate through and extend out of a top plate and a bottom plate of the reformer body, one end of the furnace tubes extending out of the bottom plate downwards is provided with a fixed support piece for preventing the furnace tubes from being expanded by heating to extend downwards and laterally swing and displace, and the fixed support piece is fixedly connected with a bottom steel structure. The invention avoids the transverse displacement of the lower gas collecting tube caused by thermal expansion extension on the furnace tube, can furthest ensure the coaxiality of the furnace tube, the furnace top plate and the furnace bottom plate sealing structure, improves the thermal efficiency of the reformer, avoids the cracking of welding seams caused by thermal expansion, and ensures the production safety.
Description
Technical Field
The invention relates to the technical field of petrochemical industry, in particular to a furnace tube mounting and fixing method applied to a hydrocarbon-steam conversion hydrogen production reformer.
Background
The hydrogen is produced by a hydrocarbon-steam conversion method, which is a main source of hydrogen required by a hydrogenation device in the petroleum refining process, and a reformer is core equipment of the hydrogen production device. The furnace body of the reformer is internally provided with a row of furnace tubes penetrating through the top plate and the bottom plate of the furnace, the furnace body of the reformer heats the furnace tubes, hydrocarbon-steam in the furnace tubes is cracked into hydrogen under the action of high temperature and a catalyst in the tubes, and the hydrogen is introduced into a lower gas collecting tube from the lower end of the furnace tubes and is sent out.
At present, two types of furnace tube fixing and mounting modes which are most widely and commonly adopted are adopted: the first is a fixed mode of directly welding the lower end of the furnace tube and the lower gas collecting tube together; the second is to set up spring support at the top of furnace tube to support furnace tube, or hang furnace tube by constant force spring or by pulley and weight, make furnace tube in suspension state when cold state, the lower end of each furnace tube is connected with lower gas collecting tube by lower pigtail tube welded with it.
When the reformer is ignited, the temperature of the furnace tube and the lower gas collecting tube continuously rises to more than 800 ℃, the furnace tube adopting the first fixing mode can not expand downwards to extend after being heated, and can only release the thermal expansion extension quantity upwards in one direction under the traction of the hanging mechanism at the top of the furnace tube, at this time, the lower gas collecting tube generates the thermal expansion extension quantity in the horizontal direction after being heated and can push the furnace tube welded with the lower gas collecting tube to move transversely, the thermal expansion extension quantity after being heated is accumulated, the transverse movement generated by the furnace tube at the outermost end of the thermal expansion extension direction is the largest, the coaxiality of the sealing structure between the furnace tube and the reformer body is destroyed due to the transverse movement of the furnace tube, gaps are generated between the furnace tube and the reformer body, so that external air enters the reformer, the excess air coefficient in the reformer is influenced, and meanwhile, the heat dissipation loss is increased, and the heat efficiency of the reformer is reduced. The furnace tube adopting the second fixing mode is heated and then expands downwards, the extension of the thermal expansion part is released, and after the thermal expansion part reaches the bottom dead center, the furnace tube is then expanded upwards under the traction of the hanging mechanism at the top of the furnace tube, and the residual thermal expansion extension is released. At this time, the lower gas collecting tube generates thermal expansion extension quantity in the horizontal direction on the lower tail pipe after being heated, and the lower tail pipe and the furnace pipe welded with the lower tail pipe are pushed to move transversely. The transverse thrust loaded on the lower tail pipe is easy to cause the cracking of welding seams of the lower tail pipe and the furnace tube and the lower gas collecting pipe, and high-temperature hydrogen is introduced into the furnace tube, the lower tail pipe and the lower gas collecting pipe, so that potential safety hazards exist.
Obviously, the fixed installation modes of the two furnace tubes have adverse effects on the sealing structure of the furnace tube and the bottom plate part of the furnace. When the cold state and the hot state change, the furnace tube transversely shifts, so that the coaxial sealing structure is damaged, and the heat efficiency of the converter is affected; when the cold state and the hot state are changed, the heat efficiency is influenced, and meanwhile, the welding seams of the lower tail pipe, the furnace pipe and the lower gas collecting pipe are easy to crack, so that serious potential safety hazards exist.
Disclosure of Invention
Aiming at the problems of the prior furnace tube fixing and installing mode of the hydrogen production reformer, the invention provides a furnace tube fixing structure applied to the hydrocarbon-steam hydrogen production reformer, which aims to restrict the trend and the direction of the furnace tube extending in the thermal expansion of the sealing structure part of the furnace bottom plate so as to be convenient for implementing effective and reliable sealing on the part, further reduce the air entering, reduce the excess air coefficient in the flue gas in the reformer, improve the heat efficiency of the reformer, and simultaneously avoid the weld cracking caused by the thermal expansion by presetting thermal expansion compensation measures.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the furnace tube installation and fixation method is used for sealing connection between a plurality of furnace tubes arranged in a plurality of rows and a reformer body, wherein the furnace tubes vertically penetrate through and extend out of a top plate and a bottom plate of the reformer body, one end of each furnace tube extending out of the bottom plate downwards is provided with a fixation support piece for preventing the furnace tubes from being expanded downwards due to heating, and the fixation support piece is fixedly connected with a furnace bottom steel structure.
Preferably, the method comprises the following steps:
step one: lifting the furnace tube into a mounting hole of a converter body from top to bottom, and fixedly connecting a fixed support piece on the furnace tube with a furnace bottom steel structure, so that the furnace tube can only expand upwards to extend when heated;
step two: a lower tail pipe is welded on the pipe wall of the furnace pipe extending downwards out of the furnace bottom plate, and the other end of the lower tail pipe is welded with a lower gas collecting pipe which is horizontally arranged, so that the furnace pipe is communicated with the lower gas collecting pipe;
step three: and a sealing structure is arranged between the furnace tube and the mounting hole of the furnace body of the reformer.
Preferably, the fixed support is a shaft part, a pipe part or a sheet metal part.
Preferably, in the first step, the furnace bottom steel structure is provided with channel steel for supporting the furnace tube fixing support, and the channel steel is horizontally arranged at two sides of the row of furnace tubes and fixedly connected with the fixing support.
Preferably, in the first step, the fixed supporting pieces welded with the furnace tube are shaft pieces, symmetrically welded on two sides of the outer wall of the furnace tube, and the symmetrical shaft pieces are placed on channel steel on two sides of the furnace tube and fixedly connected with the channel steel.
Preferably, in the first step, the fixing support member welded with the furnace tube is a sheet metal member symmetrically welded on two sides of the outer wall of the furnace tube, and the symmetrical sheet metal member is placed on channel steel on two sides of the furnace tube and fixedly connected with the channel steel.
Preferably, in the first step, a pair of auxiliary hanging lifting lugs are symmetrically welded on the outer pipe wall of the furnace pipe extending upwards out of the furnace top plate, and the auxiliary hanging lifting lugs are connected with a counterweight through a steel wire rope and a fixed pulley in a hanging manner.
Preferably, in the second step, the welding position of the lower tail pipe and the furnace tube is arranged between the fixed supporting piece and the furnace bottom plate.
Preferably, in the second step, the lower pigtail is an elastically deformable S-shaped tube.
Preferably, in the second step, after the lower tail pipe is welded with the furnace tube and the lower gas collecting tube, a twist angle for counteracting the transverse thrust generated by the thermal expansion extension of the lower gas collecting tube on the lower tail pipe is preset along the opposite direction of the thermal expansion extension of the lower gas collecting tube.
By adopting the technical scheme, compared with the background technology, the invention has the following beneficial effects:
the beneficial effects are as follows: the furnace tube extending downwards out of the furnace bottom plate is rigidly and fixedly connected with the furnace bottom steel structure, so that the axial thermal expansion extension of the furnace tube in the furnace bottom plate sealing structure is greatly reduced, and the sealing of the reformer is facilitated;
the beneficial effects are as follows: the furnace tube extending downwards out of the furnace bottom plate is rigidly and fixedly connected with the furnace bottom steel structure, the furnace tube is connected with the lower gas collecting tube through the lower tail pipe, so that the transverse displacement of the lower gas collecting tube to the furnace tube caused by thermal expansion extension is avoided, the coaxiality of the furnace tube, the furnace top plate and the furnace bottom plate sealing structure can be ensured to the greatest extent, the excess air coefficient in the flue gas in the furnace is further reduced, the heat dissipation loss is reduced, and the heat efficiency of the reformer is improved;
the beneficial effects are as follows: the furnace tube is connected with the lower gas collecting tube through the lower tail tube, and the good elastic deformation quantity of the lower tail tube is utilized, and the weld joint cracking caused by thermal expansion is avoided through the preset thermal expansion compensation measures, so that the production safety is ensured.
Drawings
FIG. 1 is a schematic view of a furnace tube fixing structure;
FIG. 2 is a schematic view of a fixed structure of a row of furnace tubes;
fig. 3 is a schematic structural diagram of embodiment 2.
In the figure: 1. a furnace tube; 1.1, fixing a supporting piece; 1.2, auxiliary hanging lifting lugs; 1.3, a flange end cover; 2. a reformer; 3. a furnace bottom steel structure; 3.1, channel steel; 4. a pigtail is put down; 5. and a lower gas collecting tube.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. It should be noted that, in the description of the present invention, terms such as "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "transverse", "axial", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, non-detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Example 1:
a furnace tube fixing structure applied to a hydrocarbon-steam hydrogen production reformer comprises a reformer body 2, a plurality of furnace tubes 1 arranged in a plurality of rows and the like, wherein the plurality of furnace tubes 1 arranged in the plurality of rows vertically penetrate through and extend out of a furnace top plate and a furnace bottom plate of the reformer body 2. And a fixed support piece 1.1 fixedly connected with the furnace bottom steel structure is symmetrically welded at a proper position between the flange at the lower port of the furnace tube 1 and the furnace bottom plate at one end of the furnace tube extending downwards out of the furnace bottom plate. After the installation, the furnace tube 1 is in a fixed state relative to the furnace bottom steel structure, so that the sealing structure between the furnace tube 1 and the furnace bottom plate is prevented from being influenced by displacement of the furnace tube 1 and the lower gas collecting tube 4 due to thermal expansion.
In this embodiment, the fixed supporting member 1.1 is an axle-like member, and is symmetrically welded on two sides of the outer wall of the furnace tube 1. Because the furnace tubes 1 in the reformer body 2 are arranged in a plurality of rows and are numerous, for convenience in construction, the channel steel 3.1 for supporting the fixed supporting piece 1.1 is arranged on the bottom steel structure 3, and the channel steel 3.1 is horizontally arranged on two sides of the row of furnace tubes 1.
The fixing method comprises the following steps:
step one: as shown in fig. 1 and 2, a plurality of furnace tubes are sequentially hung into respective mounting holes of a converter body 2 from top to bottom, and shaft parts on the furnace tubes are placed on a channel steel 3.1 and fixedly connected through a U-shaped bolt, so that the furnace tubes can only expand upwards to extend when heated.
In order to facilitate adjustment, a strip-shaped connecting hole is formed in the channel steel 3.1 connected with the U-shaped bolt.
Because the furnace tube 1 is longer and heavier, most of the length is above the furnace bottom plate, in order to keep the stress balance of the furnace tube 1 and reduce the influence of overturning force on a sealing structure, a pair of auxiliary hanging lifting lugs 1.2 are symmetrically welded on the outer tube wall of the furnace tube 1 extending upwards out of the furnace top plate, and the auxiliary hanging lifting lugs 1.2 are connected with a counterweight through a steel wire rope and a fixed pulley in a hanging manner. Because the heavy hammer is flexibly connected with the furnace tube 1 through the steel wire rope, the stress of the furnace tube can be balanced, and the balance cannot be influenced by the thermal expansion extension of the furnace tube.
So far, one end of the furnace tube 1 extending downwards out of the furnace bottom plate is in a fixed state relative to the furnace bottom steel structure 3, the furnace tube 1 can only expand upwards in one direction, and the influence of displacement generated by thermal expansion on a sealing structure between the furnace tube 1 and the furnace bottom plate is avoided.
Step two: and a lower tail pipe 4 is welded on the pipe wall of the furnace pipe 1 extending downwards out of the furnace bottom plate, and the other end of the lower tail pipe 4 is welded with a lower gas collecting pipe 5 horizontally arranged, so that the furnace pipe 1 is communicated with the lower gas collecting pipe 5.
In the embodiment, the welding position of the lower tail pipe 4 and the furnace pipe 1 is arranged between the fixed supporting piece 1.1 and the bottom plate of the furnace, and is not blocked by the channel steel 3.1 during welding construction.
The lower pigtail 4 is an S-shaped tube and has a certain elastic deformability. In order to ensure that the welding seam is not cracked due to thermal expansion stress under the high-temperature working condition, when the lower tail pipe 4 is welded with the furnace pipe 1 and the lower gas collecting pipe 5, a certain torsion angle is preset in the lower tail pipe 4 along the opposite direction of the thermal expansion extension of the lower gas collecting pipe 5 so as to offset the transverse thrust of the thermal expansion extension of the lower gas collecting pipe 5 to the lower tail pipe 4.
Step three: and a sealing structure is arranged between the furnace tube 1 and the installation hole of the reformer body 2, so that the installation of the furnace tube on the hydrocarbon-steam hydrogen production reformer is completed.
Therefore, according to the invention, through the steps, the furnace tube 1 is connected with the furnace bottom steel structure 3, the furnace tube 1 is connected with the lower gas collecting tube 5 through the lower tail tube 4, so that the transverse displacement of the lower gas collecting tube 5 to the furnace tube 1 caused by thermal expansion extension is avoided, the coaxiality of the furnace tube, a furnace top plate and a furnace bottom plate sealing structure can be ensured to the greatest extent, the excess air coefficient in flue gas in the furnace is further reduced, the heat dissipation loss is reduced, and the heat efficiency of the reformer is improved. And moreover, by utilizing the good elastic deformation of the lower tail pipe 4, the weld joint cracking caused by thermal expansion is avoided by presetting thermal expansion compensation measures, and the production safety is ensured.
Example 2:
unlike the embodiment 1, the method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to the embodiment 1, the fixing support member 1.1 is a sheet metal member symmetrically welded on both sides of the outer wall of the furnace tube 1 as shown in fig. 3. Sheet metal parts on the furnace tube are placed on the channel steel 3.1 and are fixedly connected with the channel steel 3.1 through bolts.
Obviously, this connection mode using sheet metal parts also achieves the use effect described in embodiment 1. The manner in which the same kind of connection can be achieved is varied and will not be described in detail here.
The invention is not described in detail in the prior art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The furnace tube installation and fixation method for hydrocarbon-steam reforming hydrogen production reformer is used for sealing connection between a plurality of furnace tubes arranged in multiple rows and a reformer body, wherein the furnace tubes vertically penetrate through and extend out of a top plate and a bottom plate of the reformer body.
2. The method for installing and fixing a furnace tube for a hydrocarbon-steam reforming hydrogen production reformer according to claim 1, comprising the steps of:
step one: lifting the furnace tube into a mounting hole of a converter body from top to bottom, and fixedly connecting a fixed support piece on the furnace tube with a furnace bottom steel structure, so that the furnace tube can only expand upwards to extend when heated;
step two: a lower tail pipe is welded on the pipe wall of the furnace pipe extending downwards out of the furnace bottom plate, and the other end of the lower tail pipe is welded with a lower gas collecting pipe which is horizontally arranged, so that the furnace pipe is communicated with the lower gas collecting pipe;
step three: and a sealing structure is arranged between the furnace tube and the mounting hole of the furnace body of the reformer.
3. The method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to claim 2, wherein: the fixed support piece is a shaft piece, a pipe piece or a sheet metal piece.
4. A furnace tube mounting and fixing method for a hydrocarbon-steam reforming hydrogen production reformer according to claim 2 or 3, wherein: in the first step, the furnace bottom steel structure is provided with channel steel for supporting the furnace tube fixing support piece, and the channel steel is horizontally arranged on two sides of the row of furnace tubes and fixedly connected with the fixing support piece.
5. The method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to claim 4, wherein: in the first step, the fixed supporting pieces welded with the furnace tube are shaft pieces which are symmetrically welded on two sides of the outer wall of the furnace tube, and the symmetrical shaft pieces are placed on channel steel on two sides of the furnace tube and are fixedly connected with the channel steel.
6. The method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to claim 4, wherein: in the first step, the fixed supporting parts welded with the furnace tube are sheet metal parts symmetrically welded on two sides of the outer wall of the furnace tube, and the symmetrical sheet metal parts are placed on channel steel on two sides of the furnace tube and fixedly connected with the channel steel.
7. The method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to claim 2, wherein: in the first step, a pair of auxiliary hanging lifting lugs are symmetrically welded on the outer pipe wall of the furnace pipe extending upwards out of the furnace top plate, and the auxiliary hanging lifting lugs are connected with a counterweight hammer hanger through a steel wire rope and a fixed pulley.
8. The method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to claim 2, wherein: in the second step, the welding position of the lower tail pipe and the furnace pipe is arranged between the fixed supporting piece and the furnace bottom plate.
9. The method for installing and fixing the furnace tube applied to the hydrocarbon-steam reforming hydrogen production reformer according to claim 2, wherein: in the second step, the lower pigtail is an elastically deformable S-shaped pipe.
10. A furnace tube mounting and fixing method for a hydrocarbon-steam reforming hydrogen production reformer according to claim 2, 8 or 9, wherein: in the second step, after the lower tail pipe is welded with the furnace tube and the lower gas collecting tube, a torsion angle for counteracting transverse thrust generated by the thermal expansion extension of the lower gas collecting tube on the lower tail pipe is preset along the opposite direction of the thermal expansion extension of the lower gas collecting tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428586.4A CN110002401B (en) | 2019-05-22 | 2019-05-22 | Furnace tube installation and fixation method applied to hydrocarbon-steam conversion hydrogen production reformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428586.4A CN110002401B (en) | 2019-05-22 | 2019-05-22 | Furnace tube installation and fixation method applied to hydrocarbon-steam conversion hydrogen production reformer |
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| CN110002401A CN110002401A (en) | 2019-07-12 |
| CN110002401B true CN110002401B (en) | 2024-03-15 |
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| CN201910428586.4A Active CN110002401B (en) | 2019-05-22 | 2019-05-22 | Furnace tube installation and fixation method applied to hydrocarbon-steam conversion hydrogen production reformer |
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| CN113117630A (en) * | 2019-12-31 | 2021-07-16 | 中国石油天然气股份有限公司 | Method for replacing reformer tube of chemical fertilizer synthesis reformer |
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|---|---|---|---|---|
| CN201198449Y (en) * | 2008-03-28 | 2009-02-25 | 四川亚联高科技有限责任公司 | Small-sized natural hydrogen manufacturing conversion furnace |
| CN206474126U (en) * | 2016-12-26 | 2017-09-08 | 江苏天鹏石化科技股份有限公司 | A kind of boiler tube vibrator |
| CN206720735U (en) * | 2017-04-14 | 2017-12-08 | 中国石油化工股份有限公司 | A kind of top burning type hydrogen manufacturing conversion furnace based on double tube reactor |
| CN207102559U (en) * | 2017-04-14 | 2018-03-16 | 中国石油化工股份有限公司 | Burn formula hydrogen manufacturing conversion furnace in a kind of bottom based on double tube reactor |
| CN210084939U (en) * | 2019-05-22 | 2020-02-18 | 山东齐鲁石化工程有限公司 | Furnace tube fixing structure applied to reformer of hydrocarbon-steam reforming hydrogen production device |
-
2019
- 2019-05-22 CN CN201910428586.4A patent/CN110002401B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201198449Y (en) * | 2008-03-28 | 2009-02-25 | 四川亚联高科技有限责任公司 | Small-sized natural hydrogen manufacturing conversion furnace |
| CN206474126U (en) * | 2016-12-26 | 2017-09-08 | 江苏天鹏石化科技股份有限公司 | A kind of boiler tube vibrator |
| CN206720735U (en) * | 2017-04-14 | 2017-12-08 | 中国石油化工股份有限公司 | A kind of top burning type hydrogen manufacturing conversion furnace based on double tube reactor |
| CN207102559U (en) * | 2017-04-14 | 2018-03-16 | 中国石油化工股份有限公司 | Burn formula hydrogen manufacturing conversion furnace in a kind of bottom based on double tube reactor |
| CN210084939U (en) * | 2019-05-22 | 2020-02-18 | 山东齐鲁石化工程有限公司 | Furnace tube fixing structure applied to reformer of hydrocarbon-steam reforming hydrogen production device |
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| CN110002401A (en) | 2019-07-12 |
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