CN201785425U - Air preheating combined heat pipe heat exchanger of blast furnace - Google Patents
Air preheating combined heat pipe heat exchanger of blast furnace Download PDFInfo
- Publication number
- CN201785425U CN201785425U CN2010202793791U CN201020279379U CN201785425U CN 201785425 U CN201785425 U CN 201785425U CN 2010202793791 U CN2010202793791 U CN 2010202793791U CN 201020279379 U CN201020279379 U CN 201020279379U CN 201785425 U CN201785425 U CN 201785425U
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- CN
- China
- Prior art keywords
- air
- heat pipe
- temperature
- preheating
- blast furnace
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
Abstract
An air preheating combined heat pipe heat exchanger of a blast furnace relates to the technical field of a combined preheating system used for a blast stove of an iron making blast furnace and comprises an air passage and a fume passage which are in vertical arrangement. The lower bottom of the air passage is separated from the upper bottom of the fume passage by the aid of a middle partition board, a low-temperature air input opening and a high-temperature air output opening are respectively arranged at the left end and the right end of the air passage, a low-temperature fume output opening and a high-temperature fume input opening are respectively arranged at the left end and the right end of the fume passage, a plurality of heat pipes are arranged on the middle partition board in a penetrating manner by the aid of sealing parts, the upper portions of the heat pipes are arranged inside the air passage, and the lower portions of the heat pipes are arranged inside the fume passage. The air preheating combined heat pipe heat exchanger can omit a turbolator heat exchanger for air secondary preheating in an integral combined preheating system with high air temperature, can realize energy conservation and emission reduction, and reduces equipment size, metal consumption and manufacturing and operation costs.
Description
Technical field
The utility model relate to the combination pre-heating system technical field that a kind of iron-smelting blast furnace hotblast stove uses, the particularly structure of heat-pipe heat exchanger wherein form take in, Cryo Heat Tube combination application technology field.
Background technology
In the existing Iron and Steel Production equipment, a kind of " the high wind-warm syndrome combination of blast furnace heat-exchange system " (patent No.: ZL200420024014.9), mainly be made of hotblast stove, preposition roasting kiln, the sub-interchanger of air disturbance, coal gas hot tube heat exchanger, air hot tube heat exchanger, smoke evacuation induced draft fan, precell gas blower, cooled coal gas house steward, freezing air house steward and due pipeline and valve etc. is arranged.When work, adopt a plurality of hotblast stoves to provide hot blast to blast furnace in turn.Under equal prerequisite, the hotblast stove dome temperature is high more, and the hot blast temperature that hotblast stove is sent is just high more, and by the bottom house regulating measure, is easy to keep higher relatively more stable wind pushing temperature.Its technical scheme is: cooled coal gas and combustion-supporting freezing air that hot blast stove burning is used carry out a preheating by corresponding hot tube heat exchanger before entering hotblast stove, and the air after the preheating carries out the secondary preheating through the turbolator interchanger again, the hotblast stove dome temperature correspondingly is improved, thereby the wind pushing temperature that enters blast furnace is improved.This technical scheme has obtained unusual effect, can make the high wind-warm syndrome of blast furnace acquisition more than 1250 ℃, and obtain remarkable economic efficiency.But this technical scheme still has following deficiency:
(1) in the system owing to be provided with the turbolator interchanger of air secondary preheating, make gross weight of equipment still dislike bigger than normal;
(2) air side, fume side resistance to flow are bigger;
(3) valve quantity is on the high side in the system;
(4) the turbolator interchanger is vertical layout, and heat transfer tube is arranged horizontally, and the flue-gas temperature control in mixing smoke pipe is improper and when surpassing 650 ℃, the heat transfer tube distortion is burnt out, and gas leak phenomenon takes place.
According to analysis, if design a kind of preheating of air built-up type heat pipe heat-exchange system that does not have the turbolator interchanger of air secondary preheating, air side, fume side resistance to flow are reduced, save the operation energy consumption of precell gas blower greatly; Can also make system architecture more compact, floor space, metal consumption, system's resistance are decreased, and investment cost and working cost all have bigger minimizing, save the by-pass valve control and the connecting tube quantity that are adopted, be beneficial to installation, reduce cost, also be beneficial to reduce and reveal probability, maintain easily.
The utility model content
The purpose of this utility model provides the preheating of air combined heat pipe exchanger in the combination pre-heating system of high wind-warm syndrome of turbolator interchanger that a kind of wildcard is enclosed within the preheating of no air secondary.
The utility model comprises air passageways and the exhaust gases passes that goes to upper and lower layout, described air passageways go to the bottom and the upper base of exhaust gases passes between isolate by median septum, at the left and right two ends of air passageways Cryogenic air input aperture and high temperature air delivery port are set respectively, low-temperature flue gas delivery port and high-temperature flue gas input aperture are set respectively at the left and right two ends of exhaust gases passes; Place some heat pipes by sealing member on described median septum, the top of each heat pipe is arranged in the air passageways, and lower disposed is in exhaust gases passes.
Flue gas enters exhaust gases passes by the high-temperature flue gas input aperture, with exhaust gases passes in heat pipe carry out heat exchange after, flue gas is discharged by the low-temperature flue gas delivery port, and enter air passageways by the Cryogenic air input aperture by the air that the freezing air house steward enters, with air passageways in heat pipe carry out heat exchange after, discharge by the high temperature air delivery port.Freezing air after the utility model heat exchange can be warming up to 250～350 ℃, this warm air is directly delivered to hotblast stove, because it is higher relatively to enter the air themperature of hotblast stove, therefore hotblast stove will be than higher to the wind pushing temperature of blast furnace, make the furnace temperature of blast furnace be easy to remain on higher temperature more, can save the fuel of filling in the blast furnace.Therefore, adopt the utility model, can make the combination pre-heating system of whole high wind-warm syndrome need not to adopt the turbolator interchanger of air secondary preheating, and can realize energy-saving and emission-reduction, reduce equipment volume, reduce metal consumption, reduce and make and working cost.
In addition, because the temperature of high temperature air delivery port and high-temperature flue gas input aperture is higher, and the temperature of Cryogenic air input aperture and low-temperature flue gas delivery port is lower, in order further to improve heat exchange efficiency, the moderate temperature heat pipe and the middle Cryo Heat Tube that water medium is set of naphthalene medium in the middle of comprising, heat pipe described in the utility model are set, near on the dividing plate of high temperature air delivery port moderate temperature heat pipe is being set, Cryo Heat Tube is being set near on the dividing plate of Cryogenic air input aperture.Can make spent air temperture reduce to discharging below 150 ℃.
In order to strengthen heat interchanging area, improve heat exchange efficiency, the utility model is also at described each heat pipe external welding fin.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Accompanying drawing 2 is the I portion enlarged view of Fig. 1.
Embodiment
As shown in Figure 1, 2, the utility model is made up of air passageways 1 that goes to upper and lower layout and exhaust gases passes 2, air passageways 1 go to the bottom and the upper base of exhaust gases passes 2 between isolate by median septum 3.
Cryogenic air input aperture 1-1 and high temperature air delivery port 1-2 are set respectively at the left and right two ends of air passageways 1, low-temperature flue gas delivery port 2-1 and high-temperature flue gas input aperture 2-2 are set respectively at the left and right two ends of exhaust gases passes 2.
Place some heat pipes 5 by sealing member 4 on median septum 3, the top of each heat pipe 5 is arranged in the air passageways 1, and lower disposed is in exhaust gases passes 2.Each heat pipe 5 outer fin 6 that weld respectively.
Above heat pipe 5 has two kinds, a kind of moderate temperature heat pipe that the naphthalene medium is set for the centre, the another kind of Cryo Heat Tube that water medium is set for the centre, on dividing plate 3, moderate temperature heat pipe is set, on dividing plate 3, Cryo Heat Tube is set near Cryogenic air input aperture 1-1 and low-temperature flue gas delivery port 2-1 near high temperature air delivery port 1-2 and high-temperature flue gas input aperture 2-2.
Claims (3)
1. the preheating of air combined heat pipe exchanger of blast furnace, it is characterized in that comprising the air passageways and the exhaust gases passes that go to upper and lower layout, described air passageways go to the bottom and the upper base of exhaust gases passes between isolate by median septum, at the left and right two ends of air passageways Cryogenic air input aperture and high temperature air delivery port are set respectively, low-temperature flue gas delivery port and high-temperature flue gas input aperture are set respectively at the left and right two ends of exhaust gases passes; Place some heat pipes by sealing member on described median septum, the top of each heat pipe is arranged in the air passageways, and lower disposed is in exhaust gases passes.
2. according to the preheating of air combined heat pipe exchanger of the described blast furnace of claim 1, it is characterized in that described heat pipe is provided with the moderate temperature heat pipe of naphthalene medium and the Cryo Heat Tube that the centre is provided with water medium in the middle of comprising, near on the dividing plate of high temperature air delivery port moderate temperature heat pipe is being set, Cryo Heat Tube is being set near on the dividing plate of Cryogenic air input aperture.
3. according to the preheating of air combined heat pipe exchanger of the described blast furnace of claim 1, it is characterized in that at described each heat pipe external welding fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202793791U CN201785425U (en) | 2010-07-29 | 2010-07-29 | Air preheating combined heat pipe heat exchanger of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202793791U CN201785425U (en) | 2010-07-29 | 2010-07-29 | Air preheating combined heat pipe heat exchanger of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201785425U true CN201785425U (en) | 2011-04-06 |
Family
ID=43817399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202793791U Expired - Lifetime CN201785425U (en) | 2010-07-29 | 2010-07-29 | Air preheating combined heat pipe heat exchanger of blast furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN201785425U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613640A (en) * | 2014-07-25 | 2015-05-13 | 北京利亿德电子设备有限公司 | Waste heat recovery device of hot blast stove of LCD manufacturing engineering device |
| CN106967861A (en) * | 2017-05-26 | 2017-07-21 | 中冶京诚工程技术有限公司 | Hot-blast stove combustion air timesharing pre-heating system |
| CN108398041A (en) * | 2018-03-09 | 2018-08-14 | 青岛金玉大商贸有限公司 | A kind of UTILIZATION OF VESIDUAL HEAT IN hot-pipe system in trapezoidal air channel |
-
2010
- 2010-07-29 CN CN2010202793791U patent/CN201785425U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613640A (en) * | 2014-07-25 | 2015-05-13 | 北京利亿德电子设备有限公司 | Waste heat recovery device of hot blast stove of LCD manufacturing engineering device |
| CN106967861A (en) * | 2017-05-26 | 2017-07-21 | 中冶京诚工程技术有限公司 | Hot-blast stove combustion air timesharing pre-heating system |
| CN108398041A (en) * | 2018-03-09 | 2018-08-14 | 青岛金玉大商贸有限公司 | A kind of UTILIZATION OF VESIDUAL HEAT IN hot-pipe system in trapezoidal air channel |
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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: 20110406 |
|
| CX01 | Expiry of patent term |