CN203162983U - Novel efficient combined type air preheating device - Google Patents
Novel efficient combined type air preheating device Download PDFInfo
- Publication number
- CN203162983U CN203162983U CN2013201606560U CN201320160656U CN203162983U CN 203162983 U CN203162983 U CN 203162983U CN 2013201606560 U CN2013201606560 U CN 2013201606560U CN 201320160656 U CN201320160656 U CN 201320160656U CN 203162983 U CN203162983 U CN 203162983U
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- China
- Prior art keywords
- preheater
- cast iron
- iron plate
- fin
- heat pipe
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- 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
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- 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 a novel efficient combined type air preheating device which comprises a turbulator preheater formed by integrally connecting a flue gas channel and an air channel, as well as a heat pipe type preheater and a cast iron plate-fin type preheater, wherein the turbulator preheater is arranged in the heating furnace high-temperature space; the heat pipe type preheater is arranged in the heating furnace moderate-temperature area; the cast iron plate-fin type preheater is arranged in the heating furnace low-temperature space; the flue gas channel is sequentially communicated with the turbulator preheater, the heat pipe type preheater and the cast iron plate-fin type preheater; and the air channel is sequentially communicated with the cast iron plate-fin type preheater, the heat pipe type preheater and the turbulator preheater. The novel efficient combined type air preheating device provided by the utility model performs coincidence on the turbulator preheater, the heat pipe type preheater and the cast iron plate-fin type preheater, the advantages are combined, so that the defects of low-temperature dew point corrosion and high possibility of high-temperature failure of the conventional heat exchanger are overcome, the long period operation of the heat exchanger is achieved, further, the exhaust gas temperature can be reduced greatly, and the heat efficiency of the heating furnace is improved.
Description
Technical field
The utility model relates to the petroleum chemical industry air preheater, refers in particular to the knockdown new and effective combination type air preheater of a kind of turbolator, heat pipe and cast iron plate wing triple-lap.
Background technology
The existing steel tubular air heater of petroleum chemical industry and the ubiquitous problem of heat pipe preheater are at present: when exhaust gas temperature is low, the tube wall temperature that is positioned at smoke outlet is easy to be lower than the acid dew-point temperature of flue gas, cause serious low-temperature flue gas acid dew piont corrosion, the life-span is generally shorter.In addition, when common water steel heat pipe is worked under the temperature conditions of higher, easily produce fixed gas in booster or the pipe and lost efficacy, though and the high temperature resistant and anti-flue gas acid dew point corrosion of cast iron plate-fin preheater, but its heat transfer efficiency is relatively low and floor space is big, the expense height.
Summary of the invention
The purpose of this utility model is improved and is innovated at the shortcoming that exists in the background technology and problem, provides a kind of efficient height, long service life and expense suitable new and effective combination type air preheater.
The technical solution of the utility model is a kind of air preheater that is connected into holistic turbolator preheater, heat pipe-type preheater and cast iron plate-fin preheater by exhaust gases passes and air duct that comprises of structure, wherein:
The turbolator preheater is arranged at the heating furnace high-temperature district, the heat pipe-type preheater is arranged at warm area in the heating furnace, cast iron plate-fin preheater is arranged at the heating furnace low-temperature space, described exhaust gases passes is communicated with turbolator preheater, heat pipe-type preheater and cast iron plate-fin preheater successively, and air duct is communicated with cast iron plate-fin preheater, heat pipe-type preheater and turbolator preheater successively.
Advantage of the present utility model and beneficial effect:
The utility model turbolator preheater is simple in structure, and price is low, in higher temperature district long service life; Heat pipe-type preheater heat transfer efficiency height; And cast iron plate-fin preheater adopts the cast iron plate as heat exchange element, utilizes anti-impact erosion and the decay resistance of cast iron, at the low-temperature space that might produce the flue gas acid dew point corrosion good decay resistance is arranged also.The utility model carries out the three superimposed, gets crowd's length, has avoided the easily defective of inefficacy of present heat exchanger low-temperature dew point corrosion and high temperature, has realized the long-term operation of heat exchanger, also can reduce exhaust gas temperature greatly, has improved the thermal efficiency of heating furnace.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that the utility model uses view.
The specific embodiment
By Fig. 1,2 as can be known, the utility model comprises by exhaust gases passes 2 and air duct 4 and connects into holistic turbolator preheater 5, heat pipe-type preheater 3 and cast iron plate-fin preheater 1, wherein:
Exhaust gases passes 2 described in the utility model and air duct 4 are the two passes that leads to flue gas or air respectively.The spoiler of strengthening heat exchange is installed in the heat exchanger tube of described turbolator preheater 5.The heat transfer element of described cast iron plate-fin preheater 1 is the cast iron fin plate.
Design principle of the present utility model:
The utility model connects in aggregates by cast iron plate-fin preheater 1, heat pipe-type preheater 3 and turbolator preheater 5 by exhaust gases passes 2, air duct 4, wherein use turbolator preheater 5 in the high-temperature region, use the higher heat pipe-type preheater 3 of heat transfer efficiency at the middle warm area that booster and less generation fixed gas do not take place, use cast iron plate-fin preheater 1 at the low-temperature space that might produce the flue gas acid dew point corrosion.The high-temperature region preheater of the utility model design is turbolator preheater 5, and the spoiler of strengthening heat exchange is installed in the heat exchanger tube of turbolator preheater 5; Middle warm area preheater is heat pipe-type preheater 3, utilizes evaporation and the principle of condensation to carry out work, and heat transfer efficiency is the highest; The low-temperature space preheater is cast iron plate-fin preheater 1, and its heat transfer element is the cast iron fin plate, and the casting heat transfer sheet is by making the steel grinding tool in advance, and the disposable integral casting can guarantee globality and seal, and has the advantage of plate-fin.
Operation principle of the present utility model:
When heating furnace 6 work, high-temperature flue gas at first drops to uniform temperature by turbolator preheater 5, drops to lower temperature by heat pipe-type preheater 3 again, enters cast iron plate-fin preheater 1 then and drops to exhaust gas temperature, and introduce the chimney emptying by air-introduced machine 7.Simultaneously, air-blaster 8 blasts cast iron plate-fin preheater 1 with air and is heated to uniform temperature, enters heat-pipe air preheater 3 post bake then, and it is combustion-supporting to enter heating furnace again after the 5 final heating of turbolator preheater.Turbolator preheater 5 is not having the higher flue-gas temperature regional work of dew point corrosion all the time, heat tube preheater does not have dew point corrosion shortly, the middle warm area work of booster and less generation fixed gas does not take place again, the heat exchange in low flue-gas temperature zone is then born by the cast iron plate-fin preheater with excellent corrosion resistance, can effectively avoid dew point corrosion, guarantee the longevity work of a whole set of pre-heating system.
Embodiment described in the utility model only is the description that preferred embodiment of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (4)
1. new and effective combination type air preheater is characterized in that it comprises by exhaust gases passes (2) and air duct (4) to connect into holistic turbolator preheater (5), heat pipe-type preheater (3) and cast iron plate-fin preheater (1), wherein:
Turbolator preheater (5) is arranged at the heating furnace high-temperature district, heat pipe-type preheater (3) is arranged at warm area in the heating furnace, cast iron plate-fin preheater (1) is arranged at the heating furnace low-temperature space, described exhaust gases passes (2) is communicated with turbolator preheater (5), heat pipe-type preheater (3) and cast iron plate-fin preheater (1) successively, and air duct (4) is communicated with cast iron plate-fin preheater (1), heat pipe-type preheater (3) and turbolator preheater (5) successively.
2. new and effective combination type air preheater according to claim 1 is characterized in that described exhaust gases passes (2) and air duct (4) are for leading to the two passes of flue gas or air respectively.
3. new and effective combination type air preheater according to claim 1 is characterized in that in the heat exchanger tube of described turbolator preheater (5) spoiler of strengthening heat exchange being installed.
4. new and effective combination type air preheater according to claim 1, the heat transfer element that it is characterized in that described cast iron plate-fin preheater (1) is the cast iron fin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201606560U CN203162983U (en) | 2013-04-03 | 2013-04-03 | Novel efficient combined type air preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201606560U CN203162983U (en) | 2013-04-03 | 2013-04-03 | Novel efficient combined type air preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162983U true CN203162983U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201606560U Expired - Lifetime CN203162983U (en) | 2013-04-03 | 2013-04-03 | Novel efficient combined type air preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162983U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066166A (en) * | 2015-07-31 | 2015-11-18 | 天津辰创环境工程科技有限责任公司 | Turbolator-cast iron tube combined type air preheater and heating furnace waste heat recycling method |
| CN105091017A (en) * | 2015-07-31 | 2015-11-25 | 天津辰创环境工程科技有限责任公司 | Heat pipe-cast iron pipe combined type air preheater and waste heat recovery method for heating furnace |
| CN106969374A (en) * | 2017-04-28 | 2017-07-21 | 北京拓首工业炉股份有限公司 | A kind of combined air air preheater |
-
2013
- 2013-04-03 CN CN2013201606560U patent/CN203162983U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066166A (en) * | 2015-07-31 | 2015-11-18 | 天津辰创环境工程科技有限责任公司 | Turbolator-cast iron tube combined type air preheater and heating furnace waste heat recycling method |
| CN105091017A (en) * | 2015-07-31 | 2015-11-25 | 天津辰创环境工程科技有限责任公司 | Heat pipe-cast iron pipe combined type air preheater and waste heat recovery method for heating furnace |
| CN106969374A (en) * | 2017-04-28 | 2017-07-21 | 北京拓首工业炉股份有限公司 | A kind of combined air air preheater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
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| CX01 | Expiry of patent term |