CN103225962A - Antiseptic air preheater device used for kilns - Google Patents

Antiseptic air preheater device used for kilns Download PDF

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Publication number
CN103225962A
CN103225962A CN2013101463684A CN201310146368A CN103225962A CN 103225962 A CN103225962 A CN 103225962A CN 2013101463684 A CN2013101463684 A CN 2013101463684A CN 201310146368 A CN201310146368 A CN 201310146368A CN 103225962 A CN103225962 A CN 103225962A
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CN
China
Prior art keywords
air
heater
hot
outlet
preheater
Prior art date
Application number
CN2013101463684A
Other languages
Chinese (zh)
Inventor
安丰宝
Original Assignee
安丰宝
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 安丰宝 filed Critical 安丰宝
Priority to CN2013101463684A priority Critical patent/CN103225962A/en
Publication of CN103225962A publication Critical patent/CN103225962A/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention provides the technical scheme of an antiseptic air preheater device used for kilns. The antiseptic air preheater device used for kilns comprises an air preheater provided with an air inlet, a hot air outlet, a hot smoke inlet and a cold smoke outlet. The scheme is characterized in that the air inlet of the air preheater is connected with an air outlet of an air heater; cold air is inputted through an air inlet of the air heater; warm air is outputted through the air outlet of the air heater; the air heater is provided with an input of the heating medium and an outlet of the heating medium; and the temperature of the warm air outputted through the air outlet of the air heater needs to be more than 60 DEG C.

Description

A kind of kiln corrosion-resistant air preheat apparatus
Technical field:
What the present invention relates to is a kind of kiln parts, especially a kind of kiln corrosion-resistant air preheat apparatus.
Background technology:
Air preheater is one of important accessory of stove, usually be in the flue gas inside of containing water vapour and sour gas, condition of work is more abominable, usually heating in advance is cold air, cold end corrosion appears easily, and cause seriously and leak out, combustion conditions is worsened, it is 201020523384.2 technical scheme that the disclosed patent No. is authorized by existing air preheater such as Patent Office of State Intellectual Property Office, this scheme is in heat exchanger tube fume side or both sides sintering enamel layer to be arranged, though enamel layer can the prolong smoke corrosion rate, still can not avoid the destiny that is corroded.At present, all there is the dust blockage problem of corrosion and heat exchanger tube both sides in nearly all air preheater, and this is the existing in prior technology weak point.
Summary of the invention:
Technical problem to be solved by this invention, be exactly at the existing in prior technology deficiency, and a kind of kiln technical scheme with corrosion-resistant air preheat apparatus is provided, this scheme adopts the air intlet of air preheater to be connected with the air outlet slit of an air heater, make the water vapour in the flue gas that enters air preheater can not condense into water droplet, prevented the formation of corrosive liquid,, dust stratification also no longer occurred so prevented corrosion to air preheater.
This programme is realized by following technical measures: kiln corrosion-resistant air preheat apparatus, include the air preheater of air intlet and hot air outlet and hot gas approach and cold flue gas outlet, the characteristics of this programme are that the air intlet of described air preheater is connected with the air outlet slit of an air heater, the air intake of this air heater has the cold air input, the air outlet slit of air heater has warm air output, and described air heater has the input port of heat medium and the delivery outlet of heat medium; The temperature of the warm air of described air heater air outlet slit output will be more than 60 ℃.The concrete characteristics of this programme also have, and what described heat medium adopted is water.The air intake of described air heater is connected with air blast by cool air hose.The air intlet of described air preheater is to connect by warm airduct with being connected of the air outlet slit of described air heater.The heat medium input port of described air heater connects boiler by hot-water line.The heat medium delivery outlet of described air heater is discharged water by the hot water drainpipe.The hot air outlet of described air preheater connects warm-air pipe and discharges hot-air.The hot gas approach of described air preheater connects hot cigarette admission passage.The cold flue gas outlet of described air preheater is connected with flue by discharge flue.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because the air intlet of air preheater is connected with the air outlet slit of an air heater in this scheme, the air intake of this air heater has the cold air input, the air outlet slit of air heater has warm air output, and described air heater has the input port of heat medium and the delivery outlet of heat medium; The temperature of the warm air of described air heater air outlet slit output will be more than 60 ℃.This structure, air in the mid-heat exchange flue gas heat of air preheater is not a cold air, but guaranteeing that the water vapour in the hot flue gas can not condense into more than 60 ℃ of water, this makes the water vapour in the hot flue gas that enters air preheater can not condense into water droplet, has prevented SO in the hot flue gas 2Or SO 3Be dissolved into the formation that becomes sulfurous acid or sulfuric acid corrosion liquid in the water,, dust stratification also no longer occur so also just prevented corrosion to air preheater.This shows that the present invention compared with prior art has outstanding substantive distinguishing features and obvious improvement, the beneficial effect of its enforcement also is conspicuous.
Description of drawings:
Fig. 1 is a frame structure schematic diagram of the present invention.
Fig. 2 is the structural representation of the specific embodiment of the invention.
Among the figure, 1 is air heater, and 2 is air preheater, 3 is air blast, and 4 is cool air hose, and 5 is boiler, 6 is hot-water line, and 7 is warm airduct, and 8 is the hot water drainpipe, 9 is hot cigarette admission passage, 10 is warm-air pipe, and 11 is discharge flue, and 12 is middle warm air preheater, 13 is middle warm air outlet, and 14 is middle temperature smoke inlet.
The specific embodiment:
For clearly demonstrating the technical characterstic of this programme, below by being example with the boiler of power plant flue gas waste heat recovery, the air preheater that boiler of power plant flue gas heat afterbody adopts is divided into high temperature, middle gentle low temperature three partially recycled flue gas heat, and the air preheater of low temperature part corrodes the most serious, be the specific embodiment just now with low temperature air preheater partly, and, this programme is set forth in conjunction with its accompanying drawing.
By accompanying drawing as can be seen, the kiln of this programme air preheater 2 of the free gas import of corrosion-resistant air preheat apparatus and hot air outlet and hot gas approach and cold flue gas outlet, what this specific embodiment adopted is the dividing wall type gas-air heater.The air intlet of the described air preheater 2 of this programme is connected with the air outlet slit of an air heater 1 by warm airduct 7, and what the air heater 1 of this specific embodiment adopted is dividing wall type water-air heater.The air intake of described air heater 1 is connected with air blast 3 by cool air hose 4, with the cold air input, through air heater 1 cold air of importing is heated into warm air output by air blast 3, and the temperature of this warm air is controlled between 60-70 ℃.Described air heater 1 has the input port of heat medium to connect boiler 5 by hot-water line 6, and the delivery outlet of the heat medium of air heater 1 is discharged water by hot water drainpipe 8, and what the described heat medium of this programme adopted is water.The hot air outlet of the described air preheater 2 of this programme is connected with middle warm air preheater 12 by warm-air pipe 10.The hot gas approach of described air preheater 2 is connected with middle warm air preheater 12 by hot cigarette admission passage 9.The cold flue gas outlet of described air preheater 2 is connected with flue by discharge flue 11 discharges flue gas.
The present invention is not limited in the above-mentioned specific embodiment, and the variation that those of ordinary skills make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.

Claims (9)

1. a kiln is with corrosion-resistant air preheat apparatus, include the air preheater of air intlet and hot air outlet and hot gas approach and cold flue gas outlet, it is characterized in that: the air intlet of described air preheater is connected with the air outlet slit of an air heater, the air intake of this air heater has the cold air input, the air outlet slit of air heater has warm air output, and described air heater has the input port of heat medium and the delivery outlet of heat medium; The temperature of the warm air of described air heater air outlet slit output will be more than 60 ℃.
2. air preheat apparatus according to claim 1 is characterized in that: what described heat medium adopted is water.
3. air preheat apparatus according to claim 1 is characterized in that: the air intake of described air heater is connected with air blast by cool air hose.
4. air preheat apparatus according to claim 1 is characterized in that: the air intlet of described air preheater is to connect by warm airduct with being connected of the air outlet slit of described air heater.
5. air preheat apparatus according to claim 1 is characterized in that: the heat medium input port of described air heater connects boiler by hot-water line.
6. air preheat apparatus according to claim 1 is characterized in that: the heat medium delivery outlet of described air heater is discharged water by the hot water drainpipe.
7. air preheat apparatus according to claim 1 is characterized in that: the hot air outlet of described air preheater connects warm-air pipe and discharges hot-air.
8. air preheat apparatus according to claim 1 is characterized in that: the hot gas approach of described air preheater connects hot cigarette admission passage.
9. air preheat apparatus according to claim 1 is characterized in that: the cold flue gas outlet of described air preheater is connected with flue by discharge flue.
CN2013101463684A 2013-04-25 2013-04-25 Antiseptic air preheater device used for kilns CN103225962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101463684A CN103225962A (en) 2013-04-25 2013-04-25 Antiseptic air preheater device used for kilns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101463684A CN103225962A (en) 2013-04-25 2013-04-25 Antiseptic air preheater device used for kilns

Publications (1)

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CN103225962A true CN103225962A (en) 2013-07-31

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CN2013101463684A CN103225962A (en) 2013-04-25 2013-04-25 Antiseptic air preheater device used for kilns

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CN (1) CN103225962A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034803A (en) * 1975-07-24 1977-07-12 John Zink Company Corrosion resistant tubular air preheater
CN201852129U (en) * 2010-10-22 2011-06-01 李建锋 Air preheater
CN102563874A (en) * 2012-01-12 2012-07-11 苏州工业园区瑞柯徕姆环保科技有限公司 Internal circulation waste heat recycling device of heat conducting oil furnace with temperature regulator
CN102620310A (en) * 2012-04-11 2012-08-01 碧海舟(北京)石油化工设备有限公司 Air pre-heater system preventing low-temperature corrosion and air pre-heating method
CN203190823U (en) * 2013-04-25 2013-09-11 安丰宝 Corrosion-resistant air pre-heater device used for kiln

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034803A (en) * 1975-07-24 1977-07-12 John Zink Company Corrosion resistant tubular air preheater
CN201852129U (en) * 2010-10-22 2011-06-01 李建锋 Air preheater
CN102563874A (en) * 2012-01-12 2012-07-11 苏州工业园区瑞柯徕姆环保科技有限公司 Internal circulation waste heat recycling device of heat conducting oil furnace with temperature regulator
CN102620310A (en) * 2012-04-11 2012-08-01 碧海舟(北京)石油化工设备有限公司 Air pre-heater system preventing low-temperature corrosion and air pre-heating method
CN203190823U (en) * 2013-04-25 2013-09-11 安丰宝 Corrosion-resistant air pre-heater device used for kiln

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吴味隆等: "《锅炉及锅炉房设备》", 31 May 2006 *

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Application publication date: 20130731

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