CN219879937U - Acetylene cracking furnace using electromagnetic heating - Google Patents
Acetylene cracking furnace using electromagnetic heating Download PDFInfo
- Publication number
- CN219879937U CN219879937U CN202321303375.6U CN202321303375U CN219879937U CN 219879937 U CN219879937 U CN 219879937U CN 202321303375 U CN202321303375 U CN 202321303375U CN 219879937 U CN219879937 U CN 219879937U
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- Prior art keywords
- chamber
- cooling
- acetylene
- electromagnetic heating
- pyrolysis
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- 238000005336 cracking Methods 0.000 title claims abstract description 53
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 238000000197 pyrolysis Methods 0.000 claims abstract description 31
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 238000004062 sedimentation Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000010865 sewage Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 27
- 239000000498 cooling water Substances 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model discloses an acetylene cracking furnace using electromagnetic heating, which comprises a methane inlet, a gas distribution chamber, a cracking chamber, a cooling chamber and a sedimentation chamber, wherein the device adopts electric energy as cracking energy, can efficiently convert methane into acetylene, avoids methane, oxygen and consumption, and has simple structure and convenient control; meanwhile, the device adopts the aeration head to spray cooling water, so that the atomization degree of the cooling water is improved, the heat exchange efficiency of the cooling water and pyrolysis gas is enhanced, the consumption of the cooling water is reduced, and the device is energy-saving and environment-friendly.
Description
Technical Field
The utility model relates to the field of cracking furnaces for preparing acetylene, in particular to an acetylene cracking furnace using electromagnetic heating.
Background
The main production method of acetylene at present is a methane partial oxidation method, natural gas and oxygen are respectively preheated and then enter an acetylene cracking furnace mixer to be mixed, and then the mixed gas is ignited by a spray pipe and an igniter to generate oxidation and pyrolysis reactions in a reaction chamber, wherein about 60% of the natural gas is combusted with oxygen and releases a large amount of heat, about 30% of the natural gas is subjected to cracking reactions under the heat, and about 5% of the natural gas does not participate in the reactions, but exists in the final cracking gas in the form of methane. The core equipment of the methane partial oxidation process is an acetylene cracking furnace. However, the traditional acetylene cracking furnace has the disadvantages of complex structure, high energy consumption, difficult control of reaction, short equipment operation period and high yield of carbon black as a cracking byproduct, and a large dust remover is required to remove the carbon black.
The patent CN 107261993A discloses a cracking furnace for preparing acetylene by adopting a natural gas partial oxidation method, the device has the advantages of simple integral structure, uniform gas mixing, high combustion efficiency of mixed gas, convenient carbon coke cleaning, high production efficiency and effective reduction of production cost. However, the device still adopts the natural gas partial oxidation to prepare acetylene, has large methane consumption and low acetylene yield, and still needs to clean carbon coke of the device.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the acetylene cracking furnace with electromagnetic heating, which adopts electric energy as cracking energy, can efficiently convert methane into acetylene, avoids methane, oxygen and consumption, and has the advantages of simple structure and convenient control; meanwhile, the device adopts the aeration head to spray cooling water, so that the atomization degree of the cooling water is improved, the heat exchange efficiency of the cooling water and pyrolysis gas is enhanced, the consumption of the cooling water is reduced, and the device is energy-saving and environment-friendly.
The technical scheme of the utility model is as follows:
the utility model provides an acetylene cracking furnace with electromagnetic heating, includes methane import, gas distribution room, pyrolysis room, cooling chamber, sedimentation chamber, its characterized in that, methane import is located gas distribution room centre, gas distribution room comprises oval head and tube sheet I;
the cracking chamber is positioned at the upper part of the acetylene cracking furnace and comprises an electromagnetic heating coil, a cracking tube and a tube plate II;
the cooling chamber is positioned below the cracking chamber and comprises a water inlet I, a water inlet II, a pyrolysis gas outlet, a cooling pipe bracket, cooling pipes and an aeration head, wherein the water inlet I, the water inlet II and the pyrolysis gas outlet are sequentially distributed from top to bottom, the cooling pipes are fixed on the wall of the cooling chamber through the cooling pipe bracket, and the aeration head is positioned on the cooling pipes;
the sedimentation chamber is positioned below the cooling chamber and comprises a conical end socket and a sewage drain.
Further, the elliptical head of the gas distribution chamber is a standard elliptical head.
Further, the cracking tubes of the cracking chamber are fixed on the tube plate I and the tube plate II through welding.
Further, the electromagnetic heating coil of the cracking chamber is uniformly wound outside the cracking tube.
Further, the cooling pipe of the cooling chamber is an annular pipeline.
Furthermore, the aeration heads of the cooling chamber are uniformly distributed on the cooling pipe in the circumferential direction.
Further, the conical end socket of the sedimentation chamber is 60 o And (5) a conical sealing head.
In general, compared with the prior art, the utility model has the technical advantages that:
1. the acetylene cracking furnace adopts electric energy as cracking energy, can efficiently convert methane into acetylene, avoids methane, oxygen and consumption, reduces the production cost of products, and has simple structure and convenient control.
2. The acetylene cracking furnace heats the cracking tube through the electromagnetic heating coil, is convenient to control, and can timely adjust the cracking temperature so as to reduce the generation of methane cracking byproduct carbon black.
3. The acetylene cracking furnace adopts the aeration head to spray cooling water, so that the atomization degree of the cooling water is improved, the heat exchange efficiency of the cooling water and the cracking gas is enhanced, the consumption of the cooling water is reduced, and the acetylene cracking furnace is energy-saving and environment-friendly.
Drawings
Fig. 1 is a diagram of the apparatus of the present utility model.
In the figure; 1. a methane inlet; 2. an elliptical end socket; 3. a tube plate I; 4. a pyrolysis chamber; 5. an electromagnetic heating coil; 6. a pyrolysis tube; 7. a tube plate II; 8. a cooling chamber; 9. a cooling tube holder; 10. a cooling tube; 11. an aeration head; 12. conical end socket; 13. a sewage outlet; 14. a water inlet I; 15. a water inlet II; 16. and a pyrolysis gas outlet.
Detailed Description
In order to make the technical scheme and advantages of the present utility model more clear, the present utility model will be further described with reference to the accompanying drawings.
As shown in FIG. 1, the acetylene pyrolysis furnace with electromagnetic heating provided by the utility model comprises a methane inlet, a gas distribution chamber, a pyrolysis chamber, a cooling chamber and a sedimentation chamber, and is characterized in that the methane inlet is positioned in the middle of the gas distribution chamber, and the gas distribution chamber consists of an elliptical head and a tube plate I;
further, the elliptical head of the gas distribution chamber is a standard elliptical head.
The cracking chamber is positioned at the upper part of the acetylene cracking furnace and comprises an electromagnetic heating coil, a cracking tube and a tube plate II;
further, the cracking tubes of the cracking chamber are fixed on the tube plate I and the tube plate II through welding.
Further, the electromagnetic heating coil of the cracking chamber is uniformly wound outside the cracking tube.
The cooling chamber is positioned below the cracking chamber and comprises a water inlet I, a water inlet II, a pyrolysis gas outlet, a cooling pipe bracket, cooling pipes and an aeration head, wherein the water inlet I, the water inlet II and the pyrolysis gas outlet are sequentially distributed from top to bottom, the cooling pipes are fixed on the wall of the cooling chamber through the cooling pipe bracket, and the aeration head is positioned on the cooling pipes;
further, the cooling pipe of the cooling chamber is an annular pipeline.
Furthermore, the aeration heads of the cooling chamber are uniformly distributed on the cooling pipe in the circumferential direction.
The sedimentation chamber is positioned below the cooling chamber and comprises a conical end socket and a sewage drain.
Further, the conical end socket of the sedimentation chamber is 60 o And (5) a conical sealing head.
The operation flow of the device of the utility model is as follows:
methane enters a gas distribution chamber of the acetylene cracking furnace from a methane inlet 1 and enters a cracking tube 6 of a cracking chamber 4 through a tube orifice on a tube plate I3, an electromagnetic heating coil 5 heats the cracking tube 6 to enable the cracking tube 6 to be heated to a reaction temperature, a product obtained after methane cracking enters a cooling chamber 8 through a tube plate II 7, quench hot water enters a cooling tube 10 through a water inlet I14 and then is sprayed into the cooling chamber 8 from an aeration head 11, cooling water enters the cooling chamber 8 through a water inlet II 15 and then is sprayed into the cooling chamber 8 from the aeration head 11, after the pyrolysis gas is cooled by quench hot water and cooling water, the pyrolysis gas is discharged from a pyrolysis gas outlet 16, the quench hot water after heat exchange with the pyrolysis gas is lowered into a conical sealing head 12 of a settling chamber and is discharged from a sewage outlet 13, and the filtered quench hot water enters the cooling chamber 8 through the water inlet I14 to cool the pyrolysis gas.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not intended to limit the present utility model; it will be understood by those skilled in the art that various modifications and improvements of the present utility model may be made without departing from the spirit of the utility model, and it is intended to cover the modifications and improvements as defined in the appended claims.
Claims (7)
1. The utility model provides an acetylene cracking furnace with electromagnetic heating, includes methane import, gas distribution room, pyrolysis room, cooling chamber, sedimentation chamber, its characterized in that, methane import is located gas distribution room centre, gas distribution room comprises oval head and tube sheet I;
the cracking chamber is positioned at the upper part of the acetylene cracking furnace and comprises an electromagnetic heating coil, a cracking tube and a tube plate II;
the cooling chamber is positioned below the cracking chamber and comprises a water inlet I, a water inlet II, a pyrolysis gas outlet, a cooling pipe bracket, cooling pipes and an aeration head, wherein the water inlet I, the water inlet II and the pyrolysis gas outlet are sequentially distributed from top to bottom, the cooling pipes are fixed on the wall of the cooling chamber through the cooling pipe bracket, and the aeration head is positioned on the cooling pipes;
the sedimentation chamber is positioned below the cooling chamber and comprises a conical end socket and a sewage drain.
2. An acetylene pyrolysis furnace using electromagnetic heating according to claim 1 wherein the elliptical head of the gas distribution chamber is a standard elliptical head.
3. An acetylene pyrolysis furnace using electromagnetic heating according to claim 1 wherein the pyrolysis tubes of the pyrolysis chamber are secured to tube sheet I and tube sheet II by welding.
4. An acetylene pyrolysis furnace using electromagnetic heating according to claim 1 wherein the electromagnetic heating coil of the pyrolysis chamber is uniformly wound around the outside of the pyrolysis tube.
5. An acetylene pyrolysis furnace using electromagnetic heating according to claim 1, wherein the cooling pipes of the cooling chamber are annular pipes.
6. An acetylene pyrolysis furnace using electromagnetic heating according to claim 1 wherein the aeration heads of the cooling chamber are evenly circumferentially distributed on the cooling tube.
7. An acetylene pyrolysis furnace using electromagnetic heating according to claim 1, wherein the conical end enclosure of the settling chamber is 60 o And (5) a conical sealing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321303375.6U CN219879937U (en) | 2023-05-26 | 2023-05-26 | Acetylene cracking furnace using electromagnetic heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321303375.6U CN219879937U (en) | 2023-05-26 | 2023-05-26 | Acetylene cracking furnace using electromagnetic heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219879937U true CN219879937U (en) | 2023-10-24 |
Family
ID=88400202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321303375.6U Active CN219879937U (en) | 2023-05-26 | 2023-05-26 | Acetylene cracking furnace using electromagnetic heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219879937U (en) |
-
2023
- 2023-05-26 CN CN202321303375.6U patent/CN219879937U/en active Active
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