CN202692113U - Jet-flow air preheater of anode furnace - Google Patents
Jet-flow air preheater of anode furnace Download PDFInfo
- Publication number
- CN202692113U CN202692113U CN2012203732116U CN201220373211U CN202692113U CN 202692113 U CN202692113 U CN 202692113U CN 2012203732116 U CN2012203732116 U CN 2012203732116U CN 201220373211 U CN201220373211 U CN 201220373211U CN 202692113 U CN202692113 U CN 202692113U
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- injection stream
- heat exchange
- exchange unit
- stream heat
- exhaust gases
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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
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Abstract
The utility model relates to a jet-flow air preheater of an anode furnace. The jet-flow air preheater comprises at least one jet-flow heat exchange unit which is arranged above a smoke channel, wherein one end of the jet-flow heat exchange unit is provided with an air charging joint, the other end of the jet-flow heat exchange unit is provided with an air discharging joint, the front end of the smoke channel is provided with a smoke charging joint, the back end of the smoke channel is provided with a smoke discharging joint, an ash blower for removing ash is arranged on the smoke channel, an ash bucket is arranged below the smoke channel, and an ash discharging pipe is arranged at the lower part of the ash bucket. The jet-flow air preheater of the anode furnace, disclosed by the utility model is compact in structure, high in heat exchange efficiency, strong corrosion and abrasion resistances, stable and reliable in operation, long in service life and wide in application range.
Description
Technical field
The utility model relates to a kind of air preheater, especially relates to a kind of anode furnace injection stream air preheater.
Background technology
In fields such as energy source and power, smelting, chemical industry, ceramic cements, boiler, kiln and various heat transmission equipment are to produce necessary power-equipment.In the today of being becoming tight energy day, the energy-saving and cost-reducing attention that more and more has been subject to industrial enterprise, it is rapid that various waste heat recovery heat transmission equipments are applied to the industrial production quantity growth.Air preheater also obtains increasingly extensive use.But existing air preheater exists heat exchange efficiency low mostly, the problems such as corrosion resistance, wearability are relatively poor, unstable properties.
The utility model content
The technical problems to be solved in the utility model is, overcomes the defects that prior art exists, and provides a kind of heat exchange efficiency high anode furnace injection stream air preheater.
The technical problem that the utility model further will solve is, provides a kind of corrosion resistance, wearability good, the anode furnace injection stream air preheater of stable performance.
The technical scheme that its technical problem that solves the utility model adopts is: anode furnace injection stream air preheater, comprise that at least one is installed in the injection stream heat exchange unit of exhaust gases passes top, injection stream heat exchange unit one end is provided with the air inlet interface, the injection stream heat exchange unit other end is provided with the air interface of giving vent to anger, the exhaust gases passes front end is provided with the flue gas intake interface, the exhaust gases passes rear end is provided with the flue gas interface of giving vent to anger, soot blower for ash disposal is housed on the exhaust gases passes, the exhaust gases passes below is provided with ash bucket, and the ash bucket below is provided with cement output tank.
Further, the injection stream heat exchange unit quantity that is installed on the exhaust gases passes is more than two, links to each other by the air efferent duct between the adjacent two injection stream heat exchange units; Each injection stream heat exchange unit is respectively first order injection stream heat exchange unit, second level injection stream heat exchange unit ... final stage injection stream heat exchange unit, the air inlet interface is located at final stage injection stream heat exchange unit end, and the air interface of giving vent to anger is located at first order injection stream heat exchange unit end.
Further, described injection stream heat exchange unit comprises injection stream heat exchanger tube, plenum chamber, inlet box, give vent to anger interface base flange and intake interface base flange, inlet box is located at the plenum chamber top, plenum chamber one side is provided with the interface base flange of giving vent to anger, inlet box one side is provided with intake interface base flange, and the injection stream heat exchanger tube is socketed a heated element that consists of for interior pipe, the cylindrical pipe by two different-diameters, and outer pipe is large sleeve pipe, interior pipe is the jet flow tubule, and the jet flow tubule is provided with spray-hole.
The technical problem that the utility model further will solve is achieved by the following technical programs: the large sleeve pipe of described injection stream heat exchanger tube selects the ND steel of anticorrosive anti-wear to make, and is beneficial to prolong the service life of injection stream heat exchange unit.
Inboard at large sleeve pipe, pressure-air sprays at a high speed by the spray-hole on the jet flow tubule, has strengthened Convective Heat Transfer, and flue gas like this, has not only improved the exothermic coefficient of flue gas by large outside of sleeve radiation heat transfer, and reduces the wall temperature of heating surface face, when
(Re is Reynolds number, a kind of dimensionless number that is used for characterizing the Fluid Flow in A situation, and being mainly used in distinguishing the mobile of fluid is laminar flow or turbulent flow, also can be used to determine object mobile suffered resistance in fluid.) time, the jet flow exothermic coefficient is than large 5 times of existing vertical coefficient of convective heat transfer, and wall temperature of heated surface reduces more than 10 ℃.
In the utility model, the flow direction of heated air is opposite with the flow direction of flue gas, and air and flue gas carry out heat exchange by multi-stage jet stream heat exchange unit, and so bidirectional adverse current is arranged heat exchange, can not only obtain the higher hot-air of temperature, and the more effective reduction cigarette temperature of energy; The modularization of injection stream heat exchange unit is provided with and is beneficial to on-the-spot installation and to the transformation of existing equipment.
The utility model compact conformation, heat exchange efficiency is high; Anticorrosive strong with wear resistance, working stability is reliable, long service life; Applied widely.
Description of drawings
Fig. 1 is the utility model one embodiment concrete structure schematic diagram;
Fig. 2 (a) is injection stream heat exchange unit front view embodiment illustrated in fig. 1;
Fig. 2 (b) is injection stream heat exchange unit side view embodiment illustrated in fig. 1;
Fig. 3 (a) is the heat exchange principle schematic of injection stream heat exchanger tube embodiment illustrated in fig. 1;
Fig. 3 (b) is Fig. 3 (a) I place enlarged diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
With reference to Fig. 1, the present embodiment comprises N(N 〉=1) the individual injection stream heat exchange unit 02 that is installed in successively exhaust gases passes 06 top, injection stream heat exchange unit 02 1 ends are provided with air inlet interface 01, injection stream heat exchange unit 02 other end is provided with the air interface 04 of giving vent to anger, exhaust gases passes 06 front end is provided with flue gas intake interface 05, exhaust gases passes 06 rear end is provided with the flue gas interface 10 of giving vent to anger, soot blower 09 for ash disposal is housed on the exhaust gases passes 06, exhaust gases passes 06 below is provided with ash bucket 07, and ash bucket 07 below is provided with cement output tank 08.
During the quantity N of the injection stream heat exchange unit 02 on being installed in exhaust gases passes 06 〉=2, link to each other by air efferent duct 03 between the adjacent two injection stream heat exchange units 02.N injection stream heat exchange unit 02 is respectively first order injection stream heat exchange unit, second level injection stream heat exchange unit ... N level injection stream heat exchange unit (being final stage injection stream heat exchange unit), air inlet interface 01 is located at N level injection stream heat exchange unit (being final stage injection stream heat exchange unit) end, and the air interface 04 of giving vent to anger is located at first order injection stream heat exchange unit end.
Injection stream heat exchange unit 02, its structure are modularized design, can come quantification (N) and installation method according to flue field condition and client's technical need that the client provides.
During work, cold air enters from the air inlet interface 01 of final stage injection stream heat exchange unit, and cold air enters the external equipment process pipe through 02 heating of a plurality of injection stream heat exchange units by the air interface 04 of giving vent to anger; Flue gas enters from the flue gas intake interface 05 of exhaust gases passes 06 front end, after a plurality of injection stream heat exchange unit 02 heat exchange, be expelled to atmosphere through the flue gas of the exhaust gases passes 06 rear end interface 10 of giving vent to anger, air and flue gas carry out heat exchange by N level injection stream heat exchange unit 02, so bidirectional adverse current heat exchange, can obtain the higher hot-air of temperature, and can more effective reduction exhaust gas temperature.
With reference to Fig. 2, injection stream heat exchange unit 02 comprises injection stream heat exchanger tube 2-1, plenum chamber 2-2, inlet box 2-3, interface base flange 2-4 gives vent to anger, intake interface base flange 2-5, inlet box 2-3 is located at plenum chamber 2-2 top, plenum chamber 2-2 one side is provided with the interface base flange 2-4 that gives vent to anger, inlet box 2-3 one side is provided with intake interface base flange 2-5, injection stream heat exchanger tube 2-1 is the interior pipe by two different-diameters, the heated element that the socket of cylindrical pipe consists of, outer pipe is large sleeve pipe 2-7, interior pipe is jet flow tubule 2-6, and jet flow tubule 2-6 is provided with spray-hole 2-8.
The flow process that the injection stream heat exchange unit adds hot-air is as follows: cold air enters inlet box 2-3 from intake interface base flange 2-5, cold air enters injection stream heat exchanger tube 2-1 after inlet box 2-3 distributes, after spraying heat exchange, injection stream heat exchanger tube 2-1 enters plenum chamber 2-2 again, heated air is sent the next stage that enters heating or is directly entered the external equipment process pipe through the interface base flange 2-4 that gives vent to anger after plenum chamber 2-2 collects.
With reference to Fig. 3 (a), Fig. 3 (b), the heat exchange principle of injection stream heat exchanger tube is as follows: the large sleeve pipe 2-7 surface of injection stream heat exchanger tube 2-1 is the heat-transfer surface of preheater.Flue gas flows through at large sleeve pipe 2-7 outer surface, with the form of convection current, radiation heat is passed to large sleeve pipe 2-7.The spray-hole 2-8 of air on jet flow tubule 2-6 is with higher speed ejection, form air jet stream L, the large sleeve pipe 2-7 of gas shock inner surface, so by the form of injection heat transfer heat is passed to air, then hot-air upwards flows out along the annulus between large sleeve pipe 2-7, the jet flow tubule 2-6.The injection stream heat exchange unit adopts the jet flow method to make vertically directive heat exchange surface of air.Because each high-speed fine rill thigh is all exchanged hot side and is impacted, and laminar boundary layer is damaged, and has greatly strengthened heat convection, cross the heat convection mode of heat-transfer surface with existing air longitudinal stream and compare, when
(Re is Reynolds number, a kind of dimensionless number that is used for characterizing the Fluid Flow in A situation, and being mainly used in distinguishing the mobile of fluid is laminar flow or turbulent flow, also can be used to determine object mobile suffered resistance in fluid.) time, the jet flow exothermic coefficient is than large 5 times of existing vertical coefficient of convective heat transfer.
Obviously, employing injection stream heat exchanger tube is that the injection stream heat exchange unit of important heat exchanger components has better heat exchange efficiency, the air preheater that namely is comprised of single or multiple injection stream heat exchange units is compared with existing longitudinal stream air preheater phase or convection current air preheater, and it has better heat exchange efficiency.
The large sleeve pipe 2-7 of described injection stream heat exchanger tube 2-1 adopts the ND steel of anticorrosive anti-wear to make.So arrange, when mainly being the moisture dust-laden of smoke components sulfur-bearing of considering in the flue, easily cause acid corrosion and the heat-transfer surface physical abrasion of heat-transfer surface, the ND steel of employing anticorrosive anti-wear can effectively increase the anticorrosive anti-wear performance of heat-transfer surface, makes the ILS of heat-transfer surface.
Soot blower on the heat transfer flue can effectively be removed the dust stratification on the heat-transfer surface, guarantees heat exchange property.
Above a kind of preferred embodiment of the present utility model has been done detailed introduction.The described specific embodiment just is used for helping to understand core concept of the present utility model.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also belong to the protection domain of the utility model claim.
Claims (3)
1. anode furnace injection stream air preheater, it is characterized in that, comprise that at least one is installed in the injection stream heat exchange unit of exhaust gases passes top, injection stream heat exchange unit one end is provided with the air inlet interface, and the injection stream heat exchange unit other end is provided with the air interface of giving vent to anger, and the exhaust gases passes front end is provided with the flue gas intake interface, the exhaust gases passes rear end is provided with the flue gas interface of giving vent to anger, soot blower for ash disposal is housed on the exhaust gases passes, and the exhaust gases passes below is provided with ash bucket, and the ash bucket below is provided with cement output tank.
2. anode furnace injection stream air preheater according to claim 1 is characterized in that, the injection stream heat exchange unit quantity that is installed on the exhaust gases passes is more than two, links to each other by the air efferent duct between the adjacent two injection stream heat exchange units.
3. anode furnace injection stream air preheater according to claim 1 and 2, it is characterized in that, described injection stream heat exchange unit comprises the injection stream heat exchanger tube, plenum chamber, inlet box, give vent to anger interface base flange and intake interface base flange, inlet box is located at the plenum chamber top, plenum chamber one side is provided with the interface base flange of giving vent to anger, inlet box one side is provided with intake interface base flange, the injection stream heat exchanger tube is the interior pipe by two different-diameters, the heated element that the socket of cylindrical pipe consists of, outer pipe is large sleeve pipe, interior pipe is the jet flow tubule, and the jet flow tubule is provided with spray-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203732116U CN202692113U (en) | 2012-07-31 | 2012-07-31 | Jet-flow air preheater of anode furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203732116U CN202692113U (en) | 2012-07-31 | 2012-07-31 | Jet-flow air preheater of anode furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692113U true CN202692113U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203732116U Expired - Lifetime CN202692113U (en) | 2012-07-31 | 2012-07-31 | Jet-flow air preheater of anode furnace |
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| Country | Link |
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| CN (1) | CN202692113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260353A (en) * | 2019-06-27 | 2019-09-20 | 国家能源投资集团有限责任公司 | Air preheater |
-
2012
- 2012-07-31 CN CN2012203732116U patent/CN202692113U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260353A (en) * | 2019-06-27 | 2019-09-20 | 国家能源投资集团有限责任公司 | Air preheater |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |