CN2070738U - Air cooler for metallurgical blast furnace - Google Patents
Air cooler for metallurgical blast furnace Download PDFInfo
- Publication number
- CN2070738U CN2070738U CN 90200960 CN90200960U CN2070738U CN 2070738 U CN2070738 U CN 2070738U CN 90200960 CN90200960 CN 90200960 CN 90200960 U CN90200960 U CN 90200960U CN 2070738 U CN2070738 U CN 2070738U
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- tube
- fin
- air
- air cooler
- tube bank
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a new vertical-type air cooler for a metallurgical blast furnace. A heat exchange tube bundle adopts the dual-number tube-pass type arrangement, a circulating water pipeline is positioned at the bottom of a framework, the framework load is lightened, and the steel product can be saved. The single tube structure for heat exchanger tubes is that an elliptical tube is connected in series with a short fin, and the upper side of the fin is provided with a turnover claw which has double actions of slotting and ribbing and damaging the boundary layer of the fin. Compared with a circular tube with the same cross-section area, the elliptical tube can reduce the airflow resistance, can enhance the heat supply coefficient outside of the tube, and can reduce the power of a blower fan. A flushing device has functions of flushing and removing the ash, spraying and forcing the heat exchange, and has stable and safe operation.
Description
The utility model relates to a kind of new metallurgy high furnace air-cooler (abbreviation air cooler) structure.
The blast furnace cooling is the major progress that improves furnace life, save energy, minimizing environmental pollution with air cooling technique (air cooler).Air cooler adopts the soft water closed cycle type of cooling, does not have evaporation and leaks, and is difficult for producing throw out, and less scaling, the various device working order is good, and generation furnace life increases substantially, be the traditional open circuit circulation type of cooling can not than.And be applied to the vertical air-cooled device of being commonly of blast furnace air cooling at present, it is made of framework, blower fan, circulating water pipeline, heat-exchange tube bundle and tube bank cleaning device, its heat-exchange tube bundle adopts single tube journey decoration form, the circulating water pipeline of half need be arranged in the top of complete machine framework approximately, blocked a part of gas channel, local resistance loss is big, has increased the framework load, operations and maintenance inconvenience; The single tube structure of tube bank be pipe around fin, two ends are fixed, gas-flow resistance loss is big, the coefficient of heat transfer is little, pipe is with low around the sheet bonding strength, the flushing arrangement that is positioned at the tube bank outside adopts single file to walk driving mechanism, move reliable and stable inadequately, the shortage security measures.
The purpose of this utility model is intended to overcome the shortcoming of above-mentioned prior art, and is little to obtain a kind of rational in infrastructure, gas-flow resistance loss, coefficient of heat transfer height, temperature become adaptable and can safe and reliable deashing voluntarily, the air cooler of forced heat-exchanging.
For achieving the above object, heat-exchange tube bundle of the present utility model adopts even numbers tube side decoration form, circulating water pipeline is arranged on frame underneath, the water-in and water-out bobbin carriage of tube bank is located at the lower end of tube bank, the movable bobbin carriage that the tube bank upper end is provided with can be restrained because the length variations of expanding with heat and contract with cold and causing to adapt to along the activity of pipe direction of axis line.The single tube structure of heat-exchange tube bundle is an oval tube string rectangular fin, vertically total length is provided with transversely movable spray cooling shower nozzle in the tube bank outside, and be provided with flushing arrangement, be provided with air deflector in the tube bank inboard with the induced draft fan angle simultaneously, to guide the distinguished and admirable generation of avoiding the vortex cavity.
Below in conjunction with accompanying drawing an embodiment of the present utility model is described in further detail.
Fig. 1 is an air cooler vertical structure synoptic diagram.
Fig. 2 is the flushing arrangement synoptic diagram.
Fig. 3 is the rectangular fin structural representation.
Fig. 4 is a movable bobbin carriage active connection place synoptic diagram.
Among Fig. 1, circulating water pipeline 5 is arranged in framework 4 belows, and framework 4 does not bear pipeline weight.Heat-exchange tube bundle 2 adopts even numbers tube side mode to arrange that the Inlet and outlet water bobbin carriage is located at the lower end of tube bank 2.Be provided with flushing arrangement 3 in tube bank 2 outsides, can wash deashing and spraying, reduce envrionment temperature, enhancement of heat transfer.In addition, be provided with air deflector 6 at induced draft fan 1 with the place, diagonal angle of restraining 2 inboard angles, to guide the distinguished and admirable generation of avoiding the vortex cavity.The recirculated water (thermal medium) that comes out from blast furnace cooling stave enters the air cooling bobbin carriage and restrains in 2, the induced draft fan 1 of framework 4 tops suspention ceaselessly rotates, make air (cold medium) pass tube bank 2 with certain face velocity horizontal plunderring outside restraining, recirculated water and air carry out heat exchange, recirculated water after being cooled is got back to blast furnace cooling stave, absorb a part of heat of body of heater and hot blast valve, thereby guarantee blast furnace works better under specified temperature.
The rectangular fin synoptic diagram that Fig. 2 goes here and there for the oval single tube of heat exchange of the present utility model.The plane of rectangular fin is vertical with the oval tube axial line, and spacing of fin is 1～10mm, and the short major axis ratio of oval tube is 0.25～0.55, and minor axis length is 4～42mm, and major axis is 16～85mm, and its user mode is that the major axis of oval tube is parallel with the air intake air flow line.The length and width ratio of rectangular fin is 1.5～2.5, long 27～117mm, and wide 12～55mm, thickness is 0.05～1.5mm, has 6～36 Polygonss on the fin and turns over pawl, turns over pawl usually perpendicular to the fin plane, also can be angled with the fin plane.Four trapezoidal pawls that turn over that wherein are positioned at four jiaos of rectangular fins are the spacing pawl, and two waists of trapezoidal spacing pawl and the wide end are flange, and all the other turn over pawl and be the distribution of flow line streamlining around the elliptical aperture of center.The fin elliptical aperture has flange, and its width is less than the height of spacing pawl.Behind the oval tube string rectangular fin, adopt the overall thermal dip galvanizing technique.Fin and oval tube are firmly fused, no gap thermal resistance, the intensity height, barrier propterty is good.
As shown in Figure 3, flushing arrangement 3 of the present utility model is by upper rail 11, lower guideway 8, rinser and lifting gear 14 thereof, and vehicle frame 15 and walking drive part are formed.Walking degree of driving partly is positioned on the upper rail 11, comprises two driving mechanisms 10,12 that are installed in two ends, vehicle frame 15 top, is connected with the anti-lost safety component 13 that strides across upper rail 11 on vehicle frame 15 tops, as is welded on the vehicle frame top and strides across the ring of upper rail or collude.The VTOL (vertical take off and landing) of rinser is finished by the lifting gear 14 that is positioned at the vehicle frame top.In the lower end of frame horizontal line travelling wheel 9 is installed, walks in the both wings of lower guideway 8.
Spray cooling shower nozzle 7 shown in Fig. 3 is installed on the vehicle frame 15 of flushing arrangement 3 and drives spray cooling shower nozzle 7 by it and laterally moves, and spray cooling shower nozzle 7 arranges that along the vertical total lengths of tube bank the outer side that can make whole air cooler tube bundle is equably by atomized water spray.
Show as Fig. 4, activity bobbin carriage 16 is by the tube bank supporting, lengthening bolt hole 17 is adopted in the engaging lug at its two ends and framework side fine strain of millet junction, the no thread segment length of joint bolt is a bit larger tham truck side sill and movable bobbin carriage engaging lug thickness sum, form non-tight connection, can regulate tube bank 4 voluntarily and expand with heat and contract with cold, strengthen the adaptive ability of air under big temperature difference environment.
Compare with existing air cooler, the utility model is owing to adopted the tube bank of even numbers tube side formula to arrange, circulating water pipeline is arranged in frame underneath, framework needn't supporting flue (comprising recirculated water) huge weight, and only bear tube bank and the weight of blower fan, not only saved great deal of steel, and safe and reliable, be convenient to operation and maintenance.
Tube bank single tube structure of the present utility model is elliptical tube string rectangular fin, compare with the pipe that same cross-sectional is long-pending, tube outer surface long-pending about many 15%, because the elliptical tube cross sectional shape is very suitable for air flow line, the vortex district is little behind the pipe, its resistance can reduce about 15～25%, manages outer heat transfer coefficient and can improve 25%, and power of fan is corresponding to be reduced. The pawl that turns on the rectangular fin plays the ribbing of cracking, destroys the double action of fin boundary-layer fin, realizes the air side Turbulence Flow, improves heat exchange efficiency.
Compare with existing air cooler, because flusher of the present utility model is furnished with two walking drivers at the vehicle frame top, and be provided with vehicle frame safety anti-dropping device, driving wheel walks in upper rail, security of operation is stable, when a driver breaks down, another can continue operation, improved the reliability that flusher is implemented flushing, the forced heat-exchanging of spraying is lowered the temperature, particularly at high temperature season, can guarantee the blast furnace ordinary production. In addition, the spraying cooling spray of installing at the flusher vehicle frame can satisfy air cooler quick forced cooling when abnormal high temperature appears in season in full summer.
Claims (6)
1, a kind of metallurgy high furnace air-cooler (be called for short " air cooler) by framework 4; blower fan 1; circulating water pipeline 5; heat-exchange tube bundle 2 and flushing arrangement 3 are formed; it is characterized in that: the circulating water pipeline 5 of air cooler is arranged in framework 4 belows; heat-exchange tube bundle 2 is that the even numbers tube side is arranged, the Inlet and outlet water bobbin carriage is located at the lower end of tube bank 2, restraining the setting of 2 upper ends can be along the movable bobbin carriage 16 of pipe direction of axis line active, to adapt to tube bank 2 length variations that cause owing to expanding with heat and contract with cold, the single tube structure of tube bank 2 is an ellipse garden pipe string rectangular fin, vertical total length is provided with transversely movable spray cooling shower nozzle 7 in tube bank 2 outsides, inboard place, diagonal angle with blower fan 1 angle is provided with air deflector 6 in tube bank, to guide the distinguished and admirable generation of avoiding the vortex cavity.
2. air cooler according to claim 1, it is characterized in that: the major axis of the oval single tube of described tube bank 2 is parallel with the air intake air flow line, have 6～36 Polygonss on the rectangular fin that oval tube is gone here and there and turn over pawl, it is the spacing pawl that 4 trapezoidal pawls that turn over are wherein arranged, and all the other turn over pawl and be the linear distribution of air flow stream around the elliptical aperture of fin center.
3. according to claim 1 and 2 described air coolers, it is characterized in that: described oval tube minor axis and long axis length ratio are 0.25～0.55, and the length and width ratio of brachmorphy fin is 1.5～2.5.
4. according to the air cooler described in the claim 1, it is characterized in that described flushing arrangement 3 is made up of upper rail 11, lower guideway 8, rinser and lifting gear 14 thereof, vehicle frame 15 and walking drive part, the walking drive part is positioned at upper rail 11 and is made up of driving mechanism 10,12 on two, is connected with the anti-lost safety component 13 that strides across upper rail 11 on vehicle frame 15 tops.
5. air cooler according to claim 1 is characterized in that: wherein said spray cooling shower nozzle 7 is installed on the vehicle frame 15 of flushing arrangement 3 and drives spray cooling shower nozzle 7 by it and laterally moves.
6. according to the air cooler described in the claim 1, it is characterized in that: movable bobbin carriage 16 adopts the no thread segment length of lengthening bolt hole 17 joint bolts to be a bit larger tham curb girder and movable bobbin carriage engaging lug thickness sum with tube bank curb girder junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200960 CN2070738U (en) | 1990-01-25 | 1990-01-25 | Air cooler for metallurgical blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200960 CN2070738U (en) | 1990-01-25 | 1990-01-25 | Air cooler for metallurgical blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2070738U true CN2070738U (en) | 1991-02-06 |
Family
ID=4882671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90200960 Withdrawn CN2070738U (en) | 1990-01-25 | 1990-01-25 | Air cooler for metallurgical blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2070738U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416212C (en) * | 2006-11-03 | 2008-09-03 | 辽宁石油化工大学 | Cyclonic plate air cooler |
| CN101187536B (en) * | 2007-12-05 | 2010-09-29 | 马庚 | Automatic control spraying and sprinkling system |
| CN102230751A (en) * | 2011-06-07 | 2011-11-02 | 华南理工大学 | Vacuum evaporation cooling device |
| CN104075592A (en) * | 2014-07-31 | 2014-10-01 | 黄荣锋 | Air cooler with guide flow passage structure |
-
1990
- 1990-01-25 CN CN 90200960 patent/CN2070738U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416212C (en) * | 2006-11-03 | 2008-09-03 | 辽宁石油化工大学 | Cyclonic plate air cooler |
| CN101187536B (en) * | 2007-12-05 | 2010-09-29 | 马庚 | Automatic control spraying and sprinkling system |
| CN102230751A (en) * | 2011-06-07 | 2011-11-02 | 华南理工大学 | Vacuum evaporation cooling device |
| CN104075592A (en) * | 2014-07-31 | 2014-10-01 | 黄荣锋 | Air cooler with guide flow passage structure |
| CN104075592B (en) * | 2014-07-31 | 2016-08-17 | 黄荣锋 | A kind of air cooler with pilot flow structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |