CN203731675U - Annular blowing integrated flue gas hot blast stove - Google Patents
Annular blowing integrated flue gas hot blast stove Download PDFInfo
- Publication number
- CN203731675U CN203731675U CN201420085382.8U CN201420085382U CN203731675U CN 203731675 U CN203731675 U CN 203731675U CN 201420085382 U CN201420085382 U CN 201420085382U CN 203731675 U CN203731675 U CN 203731675U
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- China
- Prior art keywords
- smoke
- blast stove
- collecting chamber
- hot
- air
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- Expired - Fee Related
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000003546 flue gas Substances 0.000 title claims abstract description 15
- 238000007664 blowing Methods 0.000 title abstract 3
- 239000000779 smoke Substances 0.000 claims abstract description 107
- 239000002737 fuel gas Substances 0.000 claims description 19
- 239000003517 fume Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 239000000446 fuel Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- -1 pharmacy Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Abstract
The utility model relates to flue gas hot blast stoves, in particular to an annular blowing integrated flue gas hot blast stove comprising a base provided with a smoke tank (2) and a shell provided with a cold air port (7) and a hot air port (6). A hearth (1) and a plurality of smoke tubes (5) are mounted in the shell, and the smoke outlet of the hearth (1) is communicated with the smoke inlet of the smoke tank (2). The flue gas hot blast stove further comprises an annular smoke collecting chamber (10), the smoke tank (2) is arranged in the inner circle of the annular smoke collecting chamber (10), and the upper end of the annular smoke collecting chamber (10) is connected to a chimney (3). One ends of the smoke tubes (5) are connected to the smoke outlet of the smoke tank (2) in a rigid sealed manner, and the other end is connected to the annular smoke collecting chamber (10) in the rigid sealed manner; in other words, the smoke tubes (5) are in U shapes, and the sealed end of the smoke tubes (5) are suspended. The U-shaped smoke tubes are arrayed in a multi-layered manner and are uniformly arranged in the space between the hearth and the shell. The annular blowing integrated flue gas hot blast stove is reasonable in design and simple in structure.
Description
Technical field
The utility model relates to fuel gas hot-blast stove, is specially a kind of around air-supply integral fuel gas hot-blast stove.
Background technology
Fuel gas hot-blast stove starts extensive use in late 1970s in China as the hot-blast stove of thermal power machinery, and it has become the regeneration product of electric heat source and traditional steam power thermal source in many industries.
Fuel gas hot-blast stove is divided into the high purifying gas hot-blast stove of direct-type and indirect type fuel gas hot-blast stove.
1, the high purifying gas hot-blast stove of direct-type adopts fuel directly to burn exactly, through high purified treatment, forms hot blast, and the dry or baking with material Direct Contact Heating.The consumption of this kind of method fuel is approximately than reduce half left and right with steam-type or other indirect heaters.Therefore,, in the situation that not affecting oven dry product quality, can use the high hot blast that purifies of direct-type completely.
Fuel is gaseous fuel, as coal gas, natural gas, liquid gas.The high-temperature combustion gas that fuel obtains after combustion reaction further contacts with outside air, directly enters hothouse or bakery after being mixed into a certain temperature, contact with the material that is dried, and heating, transpiring moisture, thus obtain dry products.In order to utilize the combustion reaction heat of these fuel, must set up a set of fuel burner.As: coal gas burner.
2, the indirect type fuel gas hot-blast stove material that is mainly applicable to be dried does not allow contaminatedly, or it is dry to be applied to heat sensitive material that temperature is lower.As: milk powder, pharmacy, synthetic resin, fine chemistry industry etc.This kind of heater, is that steam, conduction oil, flue gas etc. are done to carrier, and the heat exchanger by various ways adds hot-air.
The essential problem of indirect hot air stove is exactly heat exchange.Heat exchange area is larger, and thermal conversion rate is higher, and the energy-saving effect of hot-blast stove is better, and the life-span of body of heater and heat exchanger is longer.Otherwise the size of heat exchange area also can be identified flue-gas temperature.Cigarette temperature is lower, and thermal conversion rate is higher, and heat exchange area is just larger.
At present, indirect type fuel gas hot-blast stove is to be mainly used in dry materials, and pitshaft send warm, the gas-fired equipment of industrialness pile heating.Indirect type fuel gas hot-blast stove on market mainly comprises pedestal, burner hearth, smoke box, smoke pipe, chimney and the critical pieces such as housing with cold wind mouth and hot-air mouth, smoke box and housing are installed on pedestal, in housing, be provided with smoke pipe and burner hearth, the smoke gas port of burner hearth is communicated with the flue gas mouth that enters of smoke box, the flue gas mouth that enters of smoke pipe is communicated with the smoke gas port of smoke box, the smoke gas port of smoke pipe is communicated with chimney, because smoke box and chimney lay respectively at the two ends of burner hearth, smoke pipe linearly type connects smoke box and chimney, burner hearth can only be placed in smoke pipe below and (be subject to the restriction of manufacturing process, burner hearth surrounding cannot be evenly or the layout smoke pipe of multilayer), the two ends of smoke pipe are fixed by tube sheet, the flue gas producing after stove chamber inner combustion enters after smoke box, enter again each smoke pipe, after flowing in smoke pipe, entering chimney discharges, owing to only having the linear pattern smoke pipe that is positioned at burner hearth top as heat exchanger, cause the thermal efficiency lower.
Summary of the invention
There is the problems such as the thermal efficiency is lower in order to solve existing indirect type fuel gas hot-blast stove in the utility model, has also solved in addition the problems such as its air quantity skewness, provides a kind of around air-supply integral fuel gas hot-blast stove.
The utility model is to adopt following technical scheme to realize:
Around an air-supply integral fuel gas hot-blast stove, comprise pedestal, smoke box and the housing with cold wind mouth and hot-air mouth are installed on described pedestal, burner hearth and some smoke pipes are installed in described housing, the smoke gas port of described burner hearth is communicated with the flue gas mouth that enters of smoke box; Also comprise annular fume collecting chamber, described smoke box is placed in the interior ring of annular fume collecting chamber, and the upper end of described annular fume collecting chamber is connected with chimney (being same one end that chimney and smoke box are positioned at burner hearth); One end of described smoke pipe is connected with the smoke gas port rigid seal of smoke box, the other end is connected with annular fume collecting chamber rigid seal, and described smoke pipe forms U-shaped smoke pipe, and the afterbody of described U-shaped smoke pipe is hanging shape; Described U-shaped smoke pipe is evenly arranged in the space between burner hearth and housing after being multilayer arrangement.
During work, cold wind, under the effect of ventilation blower, is entered in housing by the cold wind mouth of housing, and around burner hearth air-supply, cold wind laterally and after smoke pipe heat exchange, is sent by hot-air mouth.The flue gas that stove chamber inner combustion produces enters smoke box, and then the one end (entering flue gas mouth) by smoke pipe enters smoke pipe, in smoke pipe, flow with cold wind heat exchange after, by the other end (smoke gas port) chimney of smoke pipe, discharged.Existence due to annular fume collecting chamber, some U-shaped smoke pipes can be after multilayer is arranged to be evenly arranged in the space between burner hearth and housing, it is the circumference that U-shaped smoke pipe is all distributed in burner hearth, take burner hearth to be placed in the centre position of some U-shaped smoke pipes, cold wind and U-shaped smoke pipe contact area increase greatly like this, significantly improved heat exchange efficiency, and also easily processing and manufacturing of equipment.In addition, the head of U-shaped smoke pipe is connected with annular fume collecting chamber rigid seal with smoke box respectively, be designed to be rigidly connected, afterbody is floated structure, after U-shaped like this smoke pipe expanded by heating, can freely extend, solved the smoke pipe problem of expanding with heat and contract with cold, overcome traditional hot-blast stove fixedly the tube sheet of smoke pipe because the problem of cracking appears in thermal stress.
Preferably, in described housing, be divided into four air compartments, be that cold and hot air channel is divided into four air compartments, those skilled in the art can be installed the air quantity that regulates aerofoil to regulate four air compartments additional, realize balanced draft heating, are heated evenly, the problems such as the weld cracking that heat transfer component localized heat transfer inequality causes, thermal deformation have been stopped, compare with traditional heating air supply mode, air quantity is evenly distributed, and also can improve heat exchange efficiency simultaneously.
Preferably, the cold wind mouth on described housing and hot-air mouth lay respectively at the two ends, left and right of housing homonymy.Because cold wind mouth and hot-air mouth are positioned at the two ends homonymy of housing, from cross section, it seems, adopt machine with rotary circular air supply mode, annular air supply road is narrow and grow, and the while has also been improved heat exchange efficiency.
Preferably, burner hearth and smoke box can be designed as monolithic construction, and smoke box and annular fume collecting chamber also can be designed as monolithic construction, for example, by being welded, without dismounting, compare with the split-type structural of traditional hot-blast stove, have compact conformation, the advantage that volume is little; From installation aspect, traditional hot-blast stove needs Assembling, and installation period is long, and cost is high; And the present invention becomes after monoblock type, at the scene without assembling, can directly come into operation, reduce installation cost.
The utility model is reasonable in design, simple in structure, solved existing indirect type fuel gas hot-blast stove exist the thermal efficiency lower, there is air-supply dead angle and the problem such as air quantity distributing homogeneity is poor.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is generalized section of the present invention.
In figure, 1-burner hearth, 2-smoke box, 3-chimney, 4-housing, 5-smoke pipe, 6-hot-air mouth, 7-cold wind mouth, 8-burner, 9-ventilation blower, 10-annular fume collecting chamber.
The specific embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, around an air-supply integral fuel gas hot-blast stove, comprise pedestal, smoke box 2 and the housing 4 with cold wind mouth 7 and hot-air mouth 6 are installed on described pedestal, burner hearth 1 and some smoke pipes 5 are installed in described housing, and the smoke gas port of described burner hearth 1 is communicated with the flue gas mouth that enters of smoke box 2; Also comprise annular fume collecting chamber 10, described smoke box 2 is placed in the interior ring of annular fume collecting chamber 10, and the upper end of described annular fume collecting chamber 10 is connected with chimney 3; One end of described smoke pipe 5 is connected with the smoke gas port rigid seal of smoke box 2, the other end is connected with annular fume collecting chamber 10 rigid seals, and described smoke pipe 5 forms U-shaped smoke pipe, and the afterbody of described U-shaped smoke pipe is hanging shape; Described U-shaped smoke pipe is evenly arranged in the space between burner hearth 1 and housing 4 after being multilayer arrangement.
During concrete enforcement, in described housing 4, be divided into four air compartments, adjusting aerofoil is installed between described air compartment, regulate installation those skilled in the art of aerofoil easily to realize, for example, the adjusting aerofoil that can swing is installed between housing and U-shaped smoke pipe.Cold wind mouth 7 on described housing 4 and hot-air mouth 6 lay respectively at the two ends, left and right of housing 4 homonymies, as shown in Figure 2.The outer fin that is provided with of described U-shaped smoke pipe 5, increases heat exchange area.Cold wind mouth 7 places are provided with ventilation blower 9.Burner hearth 1 is lighted by burner 8.Described burner hearth 1 is with smoke box 2 by being welded into monoblock type, and described smoke box 2 and annular fume collecting chamber 10 are by being welded into monoblock type.
Compare and there is following advantage with traditional hot-blast stove:
1, U-shaped smoke pipe is all distributed in the circumference of burner hearth, and cold wind and U-shaped smoke pipe contact area increase greatly, and heat exchange efficiency is high.
2, U-shaped smoke pipe one end is designed to be rigidly connected, and the other end is floated structure, and smoke pipe expanded by heating can freely extend, and has solved the smoke pipe problem of expanding with heat and contract with cold, and has overcome traditional hot-blast stove tube sheet because the problem of cracking appears in thermal stress.
3, owing to having adjusting air compartment, cold wind is uniformly distributed in air channel, has stopped the problems such as the weld cracking that heat transfer component localized heat transfer inequality causes, thermal deformation.
4, hearth of hot-blast stove, smoke box, annular fume collecting chamber are designed to monolithic construction, compare with the split-type structural of traditional hot-blast stove, have compact conformation, the advantage that volume is little; Also can reduce installation cost in addition.
Claims (5)
1. one kind around air-supply integral fuel gas hot-blast stove, comprise pedestal, smoke box (2) is installed on described pedestal and is there is cold wind mouth (7) and the housing (4) of hot-air mouth (6), burner hearth (1) and some smoke pipes (5) are installed in described housing, and the smoke gas port of described burner hearth (1) is communicated with the flue gas mouth that enters of smoke box (2); It is characterized in that: also comprise annular fume collecting chamber (10), described smoke box (2) is placed in the interior ring of annular fume collecting chamber (10), and the upper end of described annular fume collecting chamber (10) is connected with chimney (3); One end of described smoke pipe (5) is connected with the smoke gas port rigid seal of smoke box (2), the other end is connected with annular fume collecting chamber (10) rigid seal, and described smoke pipe (5) forms U-shaped smoke pipe, and the afterbody of described U-shaped smoke pipe is hanging shape; Described U-shaped smoke pipe is evenly arranged in the space between burner hearth (1) and housing (4) after being multilayer arrangement.
2. according to claim 1 around air-supply integral fuel gas hot-blast stove, it is characterized in that: in described housing (4), be divided into four air compartments, adjusting aerofoil is installed between described air compartment.
3. according to claim 1 and 2 around air-supply integral fuel gas hot-blast stove, it is characterized in that: the cold wind mouth (7) on described housing (4) and hot-air mouth (6) lay respectively at the two ends, left and right of housing (4) homonymy.
4. according to claim 3 around air-supply integral fuel gas hot-blast stove, it is characterized in that: the outer fin that is provided with of described U-shaped smoke pipe (5).
5. according to claim 4 around air-supply integral fuel gas hot-blast stove, it is characterized in that: described burner hearth (1) is with smoke box (2) by being welded into monoblock type, and described smoke box (2) and annular fume collecting chamber (10) are by being welded into monoblock type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085382.8U CN203731675U (en) | 2014-02-27 | 2014-02-27 | Annular blowing integrated flue gas hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085382.8U CN203731675U (en) | 2014-02-27 | 2014-02-27 | Annular blowing integrated flue gas hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731675U true CN203731675U (en) | 2014-07-23 |
Family
ID=51201744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085382.8U Expired - Fee Related CN203731675U (en) | 2014-02-27 | 2014-02-27 | Annular blowing integrated flue gas hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836788A (en) * | 2014-02-27 | 2014-06-04 | 山西建工申华暖通设备有限公司 | Surrounding blowing-in integrated gas hot blast stove |
| CN107477863A (en) * | 2017-09-29 | 2017-12-15 | 路英烈 | Pipeline energy-saving hot-blast stove |
-
2014
- 2014-02-27 CN CN201420085382.8U patent/CN203731675U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836788A (en) * | 2014-02-27 | 2014-06-04 | 山西建工申华暖通设备有限公司 | Surrounding blowing-in integrated gas hot blast stove |
| CN107477863A (en) * | 2017-09-29 | 2017-12-15 | 路英烈 | Pipeline energy-saving hot-blast stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |