CN200995959Y - Methane converter - Google Patents
Methane converter Download PDFInfo
- Publication number
- CN200995959Y CN200995959Y CN 200720100348 CN200720100348U CN200995959Y CN 200995959 Y CN200995959 Y CN 200995959Y CN 200720100348 CN200720100348 CN 200720100348 CN 200720100348 U CN200720100348 U CN 200720100348U CN 200995959 Y CN200995959 Y CN 200995959Y
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- CN
- China
- Prior art keywords
- beds
- converter
- burner
- methane conversion
- furnace
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- Expired - Fee Related
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Abstract
A methane reformer furnace comprises a shell (2), a heat-resistant liner (4) and a catalyst bed (5) arranged above a crown brick body (6) inside the furnace. An unstripped gas inlet (10) and a burner (1) are arranged on the top of the furnace and a reformed gas outlet (7) is arranged under the crown brick body (6) inside the furnace. A thermocouple thermometer (9) is arranged near the catalyst bed (5). The utility model is characterized in that the burner (1) made of metal material is arranged in the central position on the top of the furnace and seven orifices checker bricks (3) are laid on the catalyst bed (5).
Description
Technical field
The utility model belongs to chemical process equipment, specifically relates to a kind of steam catalyzed conversion stove that coke(oven)gas or Sweet natural gas etc. are rich in the unstripped gas methane of methane gas composition that is used for, and the gas after the conversion can be used for synthetic ammonia and synthesizing methanol.
Background technology
Converter is the visual plant in the chemical plant installationss such as coke(oven)gas synthetic ammonia and synthesizing methanol.Enter the converter burner after being preheated from the unstripped gas of purification section, oxygen enters burner after preheating, in burner, burn, behind the gas thorough mixing after the burning, enter in the conversion catalyst of splendid attire in the converter body of heater and carry out conversion reaction, reforming gas through conversion reaction is discharged converter, removes synthetic ammonia or methyl alcohol, CH in the reforming gas of this moment
4Content is less than 0.5%.
The converter structure of generally using is now: the unstripped gas of preheating is imported in the body of heater by the converter top, the oxygen enrichment of preheating or pure oxygen enter nonmetal burner by oxygen intake, dispensing orifice on nonmetal burner enters in the body of heater, carry out combustion reactions with unstripped gas, enter beds then and carry out conversion reaction, last reforming gas is discharged out of the furnace by the reforming gas outlet.
In actual use, find that there is following defective in above-mentioned converter structure:
1. if converter brickwork poor quality or produce the crack owing to the operation reason causes nonmetal burner, unstripped gas burns near the crack for a long time, the converter heat-resistant lining is in hot environment for a long time, causes heat-resistant lining to lose efficacy easily, converter takes place burn accident.
2. because hot spots and the distance between the beds in the converter are less, combustion flame has the phenomenon of burning catalyzer, causes the work-ing life of catalyzer shorter.
3. the key brick masonry vault angle under the converter beds is too little, causes in use for some time, and the pressurized cracking phenomena appears in the key brick masonry, must more renew brick again.
4. converter bottom reforming gas exit diameter is less than normal, and the reforming gas gas velocity is too fast, washes away the mould material liner easily, and particle is brought in the waste heat boiler that is attached thereto.
5. the upper strata thermometer mouth of converter beds is under the abnormal situation of operation, and the phenomenon of burning thermowell sprays thermopair the incidents of blasting easily.
Summary of the invention
The purpose of this utility model provides a kind of novel methane conversion stove that is used for Sweet natural gas or coke(oven)gas, to overcome the shortcoming of original converter, improves the safety in utilization and the work-ing life of converter.
Methane conversion stove of the present utility model is made up of housing and heat-resistant lining, and beds is seated in the top of key brick masonry in the stove, is equipped with the seven apertures in the human head checker brick above beds.The body of heater top is provided with the unstripped gas inlet, and the reforming gas outlet is arranged on the below of key brick masonry in the stove.Burner is made by metallic substance, is installed in the mid-way at body of heater top.
Wherein, 90 ° of vault constructions are adopted at the key brick masonry vault angle of the utility model methane conversion stove, and set up the stainless steel lining in the reforming gas outlet.
The upper strata thermocouple thermometer that the utility model also is provided with the beds place is designed to two sleeve pipe boss structures.
Compare with traditional converter, methane conversion stove of the present utility model has the following advantages:
1. converter adopts metallic substance to make burner, and the metal burning device is arranged on the mid-way at converter top, directly burning is sprayed in the unstripped gas with oxygen, and flame does not contact with the converter liner, can not burn out inner lining of furnace.
2. above beds, lay the seven apertures in the human head checker brick, improved the fluid distribution situation, avoided the direct contact catalyst bed of flame, the work-ing life of having improved catalyzer.
3. 90 ° of vault constructions are adopted at the vault angle of beds below key brick masonry, have improved the force-bearing situation of whole vault greatly, have prolonged the work-ing life of key brick, have reduced the maintenance load of converter.
4. enlarged the reforming gas exit diameter, the flow velocity of control reformed gas is less than 15m/s, and sets up Cr25Ni20 stainless steel lining in the reforming gas exit portion that does not have enlarged diameter, solved the problem of reforming gas airflow scouring lining.
5. thermocouple thermometer mouth in beds upper strata adopts two sleeve pipe boss structures of Incoloy800 material, solved the problem that thermowell burns, thermopair sprays, even converter overtemperature, thermowell burns, thermopair ejection phenomenon can not take place yet, and has improved the security of converter operation.
That methane conversion stove and accessory of the present utility model has is safe and reliable, serviceable bife long, maintenance operation characteristics easily, guaranteed the long-term operation of converter, has improved the economic benefit of unstripped gas system synthetic ammonia, synthesizing methanol.
Description of drawings
Fig. 1 is the structural representation of the utility model methane conversion stove.
Embodiment
Methane conversion furnace structure of the present utility model is made up of housing 2 and the heat-resistant linings 4 that are installed in the housing 2 as shown in Figure 1.
Be provided with the key brick masonry 6 that has 90 ° of vault angles in the body of heater bottom, beds 5 is seated in the top of key brick masonry 6, and lays seven apertures in the human head checker brick 3 above beds 5.5 places are provided with thermocouple thermometer 9 at beds, and upper strata thermocouple thermometer 9 wherein adopts two sleeve pipe boss structures.
The top of body of heater is provided with unstripped gas inlet 10, and key brick masonry 6 belows are provided with reforming gas outlet 7 in the stove, has additional stainless steel lining 8 in the reforming gas outlet 7.
Burner 1 adopts metallic substance to make, and is installed in the mid-way at body of heater top.
Claims (4)
1, a kind of methane conversion stove, form by housing (2), heat-resistant lining (4) and the beds (5) that is seated in key brick masonry (6) top in the stove, above body of heater, be provided with unstripped gas inlet (10) and burner (1), reforming gas outlet (7) is arranged on the below of key brick masonry (6) in the stove, beds (5) locates also to be provided with thermocouple thermometer (9), it is characterized in that described burner (1) made by metallic substance, be installed in the mid-way at body of heater top, be equipped with seven apertures in the human head checker brick (3) in the top of beds (5).
2, methane conversion stove according to claim 1 is characterized in that 90 ° of vault constructions are adopted at the vault angle of described key brick masonry (6).
3, methane conversion stove according to claim 1 is characterized in that setting up stainless steel lining (8) in described reforming gas outlet (7).
4, methane conversion stove according to claim 1 is characterized in that the upper strata thermocouple thermometer (9) that beds (5) is located adopts two sleeve pipe boss structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720100348 CN200995959Y (en) | 2007-01-09 | 2007-01-09 | Methane converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720100348 CN200995959Y (en) | 2007-01-09 | 2007-01-09 | Methane converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200995959Y true CN200995959Y (en) | 2007-12-26 |
Family
ID=38994390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720100348 Expired - Fee Related CN200995959Y (en) | 2007-01-09 | 2007-01-09 | Methane converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200995959Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172025A (en) * | 2011-12-20 | 2013-06-26 | 西安航天远征流体控制股份有限公司 | Reforming furnace combining metal burner reforming furnace body with nonmetal burner reforming furnace body |
| CN104284713A (en) * | 2012-05-09 | 2015-01-14 | 卡萨尔公司 | A method for revamping a secondary reformer |
-
2007
- 2007-01-09 CN CN 200720100348 patent/CN200995959Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172025A (en) * | 2011-12-20 | 2013-06-26 | 西安航天远征流体控制股份有限公司 | Reforming furnace combining metal burner reforming furnace body with nonmetal burner reforming furnace body |
| CN104284713A (en) * | 2012-05-09 | 2015-01-14 | 卡萨尔公司 | A method for revamping a secondary reformer |
| CN104284713B (en) * | 2012-05-09 | 2016-11-16 | 卡萨尔公司 | For the method transforming secondary reformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20100209 |