CN203642218U - Air preheating device for petrochemical heating furnace - Google Patents
Air preheating device for petrochemical heating furnace Download PDFInfo
- Publication number
- CN203642218U CN203642218U CN201320745767.8U CN201320745767U CN203642218U CN 203642218 U CN203642218 U CN 203642218U CN 201320745767 U CN201320745767 U CN 201320745767U CN 203642218 U CN203642218 U CN 203642218U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- fin
- low
- preheating
- interlayer element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 14
- 239000011229 interlayer Substances 0.000 claims abstract description 37
- 239000003208 petroleum Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 229910001018 Cast iron Inorganic materials 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to an air preheating device for a petrochemical heating furnace. A high-temperature section heat exchanger, a middle section heat exchanger and a low-temperature heat exchanger are mounted in a preheating bracket from top to bottom; the high-temperature section heat exchanger and the middle section heat exchanger are connected with preheating flow passages of the high-temperature section heat exchanger and the middle section heat exchanger through a first box cover covering the preheating bracket; the middle section heat exchanger and the low-temperature section are connected with the preheating flow passages of the middle section heat exchanger and the low-temperature section through a second box cover covered on the preheating bracket; the low-temperature section heat exchanger is a finned heat exchanger; turbulent flow cavities perpendicular to the extending direction of fins are formed in fin interlayer units of the finned heat exchanger; the turbulent flow cavities are distributed in a staggered manner; the fin interlayer units are made of corrosion-resistant cast-iron plates. The air preheating device for the petrochemical heating furnace has the benefits that the heat exchange efficiency is high; pressure drop is low; as the corrosion-resistant cast-iron plate is adopted to prepare the low-temperature section heat exchanger, the problem of dew point corrosion is effectively solved; the service life is guaranteed; moreover, the temperature at the exhaust gas outlet is further reduced.
Description
Technical field
The utility model relates to a kind of air preheater of petroleum chemical heating furnace.
Background technology
High-temperature flue gas in petroleum chemical heating furnace need to enter flue gas heat recovery and combustion air preheating by air preheater, the low-temperature zone finned heat exchanger of existing petroleum chemical heating furnace, there is dew point corrosion problem, cannot further reduce the temperature of outlet flue gas, and larger to the pressure drop of flue gas and combustion air, need to consume the more energy and drive flue gas and combustion air to flow in heat exchanger.
Utility model content
Technical problem to be solved in the utility model is: a kind of air preheater of petroleum chemical heating furnace is provided, reduces the pressure drop of heat exchanger, improve corrosion resistance.
The utility model solves the technical scheme that its technical problem adopts: a kind of air preheater of petroleum chemical heating furnace, comprise preheating support, high-temperature section heat exchanger, stage casing heat exchanger, low-temperature zone heat exchanger, the first case lid and the second case lid, high-temperature section heat exchanger, stage casing heat exchanger, low-temperature zone heat exchanger is from top to bottom arranged in preheating support, high-temperature section heat exchanger, stage casing heat exchanger connects both preheating runners by covering on the first case lid on preheating support, stage casing heat exchanger, low-temperature zone heat exchanger connects both preheating runners by covering on the second case lid on preheating support, low-temperature zone heat exchanger is finned heat exchanger, comprise fin interlayer element A and fin interlayer element B, fin interlayer element A and fin interlayer element B are alternately laminated, upper the gathering of fin interlayer element A and fin interlayer element B forms the fin of heat exchanger channels, fin interlayer element A is mutually vertical with the fin on fin interlayer element B, fin is segmented fin, adjacent multiple segmented fins are one group, the segmentation position of the fin in each fins set is identical, to form multiple flow-disturbing chambeies vertical with fin bearing of trend, flow-disturbing chamber in adjacent fins group is interspersed.
For improving corrosion resistance, the material of fin interlayer element A and fin interlayer element B is corrosiron plate.
High-temperature section heat exchanger and stage casing heat exchanger are tubular heat exchanger.
The beneficial effects of the utility model are: the air preheater heat exchange efficiency of this petroleum chemical heating furnace is high, pressure drop is little, by adopting corrosiron plate to make low-temperature zone heat exchanger, efficiently solves dew point corrosion problem, in guaranteeing service life, can further reduce exhanst gas outlet temperature.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of fin interlayer element of the present utility model;
Fig. 3 is the structural representation of low-temperature zone heat exchanger of the present utility model;
Wherein, 1. fin interlayer element A, 2. fin interlayer element B, 3. fin, 4. flow-disturbing chamber, 5. preheating support, 6. high-temperature section heat exchanger, 7. stage casing heat exchanger, 8. low-temperature zone heat exchanger, 9. the first case lid, 10. the second case lid.
The specific embodiment
As Fig. 1, shown in 2 and 3, a kind of air preheater of petroleum chemical heating furnace, comprise preheating support 5, high-temperature section heat exchanger 6, stage casing heat exchanger 7, low-temperature zone heat exchanger 8, the first case lid 9 and the second case lid 10, high-temperature section heat exchanger 6, stage casing heat exchanger 7, low-temperature zone heat exchanger 8 is from top to bottom arranged in preheating support 5, high-temperature section heat exchanger 6, stage casing heat exchanger 7 is by covering on first case lid 9 both preheating runners of connection on preheating support 5, stage casing heat exchanger 7, low-temperature zone heat exchanger 8 is by covering on second case lid 10 both preheating runners of connection on preheating support 5, low-temperature zone heat exchanger 8 is finned heat exchanger, comprise outer cover of heat exchanger and fin interlayer element A1, fin interlayer element B2, fin interlayer element A1 and fin interlayer element B2 are arranged in outer cover of heat exchanger, fin interlayer element A1 and fin interlayer element B2 are alternately laminated, upper the gathering of fin interlayer element A1 and fin interlayer element B2 forms the fin 3 of heat exchanger channels, fin interlayer element A1 is mutually vertical with the fin 3 on fin interlayer element B2, fin 3 is segmented fin, adjacent multiple segmented fins are one group, the segmentation position of the fin 3 in each fins set is identical, to form multiple flow-disturbing chambeies 4 vertical with fin 3 bearing of trends, flow-disturbing chamber 4 in adjacent fins group is interspersed.
The material of fin interlayer element A1 and fin interlayer element B2 is corrosiron plate.
High-temperature section heat exchanger 6 and stage casing heat exchanger 7 are tubular heat exchanger.
Claims (3)
1. the air preheater of a petroleum chemical heating furnace, it is characterized in that: comprise preheating support (5), high-temperature section heat exchanger (6), stage casing heat exchanger (7), low-temperature zone heat exchanger (8), the first case lid (9) and the second case lid (10), high-temperature section heat exchanger (6), stage casing heat exchanger (7), low-temperature zone heat exchanger (8) is from top to bottom arranged in preheating support (5), high-temperature section heat exchanger (6), stage casing heat exchanger (7) connects both preheating runners by covering on the first case lid (9) on preheating support (5), stage casing heat exchanger (7), low-temperature zone heat exchanger (8) connects both preheating runners by covering on the second case lid (10) on preheating support (5), low-temperature zone heat exchanger (8) is finned heat exchanger, comprise fin interlayer element A(1) and fin interlayer element B(2), fin interlayer element A(1) and fin interlayer element B(2) alternately laminated, fin interlayer element A(1) and fin interlayer element B(2) the upper densely covered fin (3) that forms heat exchanger channels, fin interlayer element A(1) with fin interlayer element B(2) on fin (3) mutually vertical, fin (3) is segmented fin, adjacent multiple segmented fins are one group, the segmentation position of the fin (3) in each fins set is identical, to form multiple flow-disturbing chambeies (4) vertical with fin (3) bearing of trend, flow-disturbing chamber (4) in adjacent fins group is interspersed.
2. the air preheater of petroleum chemical heating furnace according to claim 1, is characterized in that: described fin interlayer element A(1) and fin interlayer element B(2) material be corrosiron plate.
3. the air preheater of petroleum chemical heating furnace according to claim 1, is characterized in that: described high-temperature section heat exchanger (6) and stage casing heat exchanger (7) are tubular heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745767.8U CN203642218U (en) | 2013-11-22 | 2013-11-22 | Air preheating device for petrochemical heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745767.8U CN203642218U (en) | 2013-11-22 | 2013-11-22 | Air preheating device for petrochemical heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642218U true CN203642218U (en) | 2014-06-11 |
Family
ID=50873459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745767.8U Expired - Lifetime CN203642218U (en) | 2013-11-22 | 2013-11-22 | Air preheating device for petrochemical heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654344A (en) * | 2013-11-22 | 2015-05-27 | 江苏东方成套设备制造有限公司 | Air preheat device of petrochemical heating furnace |
-
2013
- 2013-11-22 CN CN201320745767.8U patent/CN203642218U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654344A (en) * | 2013-11-22 | 2015-05-27 | 江苏东方成套设备制造有限公司 | Air preheat device of petrochemical heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214537 Xinqiao Industrial Park, Jingjiang, Jiangsu, Taizhou Patentee after: Jiangsu Dongfang Complete Equipment Manufacturing Group Co., Ltd. Address before: 214537 Xinqiao Industrial Park, Jingjiang, Jiangsu, Taizhou Patentee before: JIANGSU DONGFANG WHOLE-SET EQUIPMENT MANUFACTURING CO., LTD. |