CN204460149U - A kind of all-oxygen combustion glass furnace high-temperature residual heat boiler - Google Patents
A kind of all-oxygen combustion glass furnace high-temperature residual heat boiler Download PDFInfo
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- CN204460149U CN204460149U CN201520020642.8U CN201520020642U CN204460149U CN 204460149 U CN204460149 U CN 204460149U CN 201520020642 U CN201520020642 U CN 201520020642U CN 204460149 U CN204460149 U CN 204460149U
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Abstract
The utility model discloses a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler, it comprises the vertical gas pass with gas approach, its sidewall adopts film water cold wall structure, the top of vertical gas pass is provided with the horizontal flue part communicated with it, horizontal flue part is provided with the vertical flue portion to downward-extension, and vertical flue portion is provided with exhanst gas outlet; Be installed on superheater, the economizer of vertical flue portion from top to bottom successively, the delivery port access drum of economizer, drum is connected to the film water cold wall structure of vertical gas pass by down-comer, saturation water in film water cold wall structure accesses drum by tedge after being heated to form steam water interface, drum be provided with by steam and saturation moisture from and by the steam-water separator of saturation water by the film water cold wall structure of down-comer input vertical gas pass; The air admission hole of steam-water separator access superheater, the outlet of superheater is connected to the equipment of superheated steam to be used.This product can make full use of the energy of high-temperature flue gas, realizes energy-conserving and environment-protective.
Description
Technical field
The utility model relates to the therrmodynamic system in Thermal Power Engineering, especially relates to a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler.
Background technology
Glass melter always is using air as combustion-supporting medium, only has the oxygen of 21% to participate in combustion-supporting in air, and the nitrogen of 78% does not only participate in burning, also carries a large amount of heats and enters air.Traditional air-breathing needs to change the heat exchange that fire carries out flue gas and combustion air, recovery section heat energy by timing.But change in fiery process kiln and lose flame instantaneously, glass metal must lose thermal source, causes kiln temperature to fluctuate, be subject to the impact of changing fiery process, furnace pressure transient fluctuation is also inevitable result.
Through analysis and research to existing combustion system, think and adopt air-breathing to be cause high energy consumption, high pollution, key factor that greenhouse effects are high.Thought by the experimental study of prolonged and repeated ground; Adopt the oxygen of purity>=85% as combustion-supporting medium, for economize energy, environmental protect effect is very remarkable: compared with traditional air-breathing glass melter, oxy-fuel combustion glass melting furnace eliminates regenerator, port and changes ignition system etc., glass metal quality can be significantly improved, can reduce by 12.5 ~ 22% even higher energy consumptions, discharge amount of exhaust gas reduces more than 60%, nitrogen oxide NO
xreducing about 80 ~ 90%, is the important channel that glass industry enterprise realizes energy-saving and emission-reduction, improves the quality of products.
Pure oxygen combustion technology fusion cast glass makes that fusing is more stable, energy-conservation, high efficiency, is close to reach desirable and found effect.Therefore the pure oxygen combustion technology of glass industry is described as the second revolution of glass melting technology, and the first time revolution of glass melting technology is the establishment of regenerator type glass-melting furnace.Therefore pure oxygen combustion technology is considered to the most effective most economical glass melting mode, and therefore fast development from now on just will become certainty.
Adopt air-breathing glass furnace, its smog discharge temperature is at 480 ~ 530 DEG C, and existing waste heat boiler technology can be supporting for heat recovery, and the smog discharge temperature of all-oxygen combustion glass furnace is up to 900 ~ 1300 DEG C, exhaust gas volumn is little, and corresponding waste heat boiler is comparatively rare.
Existing waste heat boiler is the cold wind mixing 20 ° in high-temperature flue gas, and high-temperature flue-gas is reduced to 500-600 DEG C, but just must cause the waste of energy like this.
Utility model content
The purpose of this utility model is exactly that provide a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler, it effectively can utilize the high-temperature residual heat flue gas of the glass furnace of all-oxygen combustion in order to solve the problem.
To achieve these goals, the utility model adopts following technical scheme:
A kind of all-oxygen combustion glass furnace high-temperature residual heat boiler, it comprises:
There is the vertical gas pass 2 of gas approach 1, the sidewall of this vertical gas pass adopts film water cold wall structure, the top of this vertical gas pass is provided with the horizontal flue part communicated with it, described horizontal flue part is provided with the vertical flue portion to downward-extension, and this vertical flue portion is provided with exhanst gas outlet 5;
Be installed on the superheater 3 of vertical flue portion, economizer 4 from top to bottom successively, the water entered from economizer water inlet enters drum 6 from the delivery port of economizer in economizer with after flue gas adverse current heat exchange, described drum is connected to the film water cold wall structure of vertical gas pass by down-comer 7, saturation water in this film water cold wall structure accesses drum by tedge after being heated to form steam water interface, described drum be provided with by steam and saturation moisture from and by the steam-water separator of saturation water by the film water cold wall structure of down-comer input vertical gas pass;
Wherein, the saturated vapor gone out through steam-water separator separation is by the air admission hole of pipeline access superheater 3, and the outlet of described superheater is connected to the equipment of superheated steam to be used.
Further, the bottom of described vertical gas pass is provided with ash bucket.
Further, described superheater, economizer adopt coiled pipe structure.
Further, described coiled pipe structure adopts extended surface tube or light pipe.
Further, described superheater, economizer are provided with anti-abrasion cover and blow grey rapping apparatus.
The utility model has following beneficial effect: the energy that can make full use of high-temperature flue gas, realizes energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler structure schematic diagram.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with specific embodiment, setting forth the utility model further.
As shown in Figure 1, a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler, it comprises: gas approach 1, vertical gas pass 2, superheater 3, economizer 4, exhanst gas outlet 5, drum 6, down-comer 7.
There is the vertical gas pass 2 of gas approach 1, its bottom has the gas approach pipeline of level, the sidewall of this vertical gas pass adopts film water cold wall structure and realizes water-cooling pattern, specifically, at the wall of vertical gas pass, fin panel casing is set as evaporating heating surface, in vertical gas pass, due to the high temperature section that flue-gas temperature is higher than 600 DEG C, evaporating heating surface is based on radiation heat transfer, adopt fin panel casing can absorb high-temperature flue gas waste heat, also can reduce the layout quantity of heating surface, safe water circulation is reliable, the top of this vertical gas pass is provided with the horizontal flue part communicated with it, described horizontal flue part is provided with the vertical flue portion to downward-extension, this vertical flue portion is provided with exhanst gas outlet 5, flue gas enters vertical flue portion by turning after vertical gas pass and washes away superheater.
Be installed on the superheater 3 of vertical flue portion from top to bottom successively, economizer 4, drum 6 is entered from the delivery port of economizer after the water entered from economizer water inlet is contrary with flow of flue gas direction with flue gas adverse current heat-exchanging water flow path direction in economizer, described drum is connected to the film water cold wall structure of vertical gas pass by down-comer 7, saturation water in this film water cold wall structure accesses drum by tedge after being heated to form steam water interface, described drum be provided with by steam and saturation moisture from and by the steam-water separator of saturation water by the film water cold wall structure of down-comer input vertical gas pass.
Flue gas is by washing away economizer after superheater, this economizer adopts coiled pipe structure, and coiled pipe structure adopts extended surface tube or light pipe, wherein, economizer can adopt one group or two groups also or more according to the situation of flue gas, if Dust Capacity is comparatively large in flue gas, can increase anti-abrasion cover at economizer and blow grey rapping apparatus, flue gas be discharged from exhanst gas outlet after economizer again.
Wherein, the saturated vapor gone out through steam-water separator separation is by the air admission hole of pipeline access superheater 3, and the outlet of described superheater is connected to the equipment of superheated steam to be used.
When dust in flue gas has just entered vertical gas pass 2, it is gaseous form because temperature is higher, above-mentioned in the top process of vertical gas pass, reduce gradually along with temperature and become solid-state form, the solid-state dust of a part drops to the bottom of vertical gas pass, Given this, arrange in the bottom of vertical gas pass that ash bucket is not shown in the figures to be comparatively suitable for.
Described superheater adopts coiled pipe structure, and coiled pipe structure adopts extended surface tube or light pipe, and wherein, superheater can adopt one group or two groups also or more according to the situation of flue gas.
The foregoing is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited in above-mentioned embodiment, and every technical scheme belonging to the utility model principle all belongs to protection domain of the present utility model.For a person skilled in the art, the some improvement carried out under the prerequisite not departing from principle of the present utility model, these improvement also should be considered as protection domain of the present utility model.
Claims (5)
1. an all-oxygen combustion glass furnace high-temperature residual heat boiler, it is characterized in that, comprise: the vertical gas pass (2) with gas approach (1), the sidewall of this vertical gas pass adopts film water cold wall structure, the top of this vertical gas pass is provided with the horizontal flue part communicated with it, described horizontal flue part is provided with the vertical flue portion to downward-extension, and this vertical flue portion is provided with exhanst gas outlet (5), be installed on the superheater (3) of vertical flue portion from top to bottom successively, economizer (4), the water entered from economizer water inlet enters drum (6) from the delivery port of economizer in economizer with after flue gas adverse current heat exchange, described drum is connected to the film water cold wall structure of vertical gas pass by down-comer (7), saturation water in this film water cold wall structure accesses drum by tedge after being heated to form steam water interface, described drum be provided with by steam and saturation moisture from and by the steam-water separator of saturation water by the film water cold wall structure of down-comer input vertical gas pass, wherein, the saturated vapor gone out through steam-water separator separation accesses the air admission hole of superheater (3) by pipeline, the outlet of described superheater is connected to the equipment of superheated steam to be used.
2. a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler according to claim 1, it is characterized in that, the bottom of described vertical gas pass (2) is provided with ash bucket.
3. a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler according to claim 1, is characterized in that, described superheater (3), economizer (4) adopt coiled pipe structure.
4. a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler according to claim 3, is characterized in that, described coiled pipe structure adopts extended surface tube or light pipe.
5. a kind of all-oxygen combustion glass furnace high-temperature residual heat boiler according to claim 3, it is characterized in that, described superheater (3), economizer (4) are provided with anti-abrasion cover and blow grey rapping apparatus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520020642.8U CN204460149U (en) | 2015-01-12 | 2015-01-12 | A kind of all-oxygen combustion glass furnace high-temperature residual heat boiler |
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| CN201520020642.8U CN204460149U (en) | 2015-01-12 | 2015-01-12 | A kind of all-oxygen combustion glass furnace high-temperature residual heat boiler |
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| CN204460149U true CN204460149U (en) | 2015-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184055A (en) * | 2021-12-16 | 2022-03-15 | 南通万达锅炉有限公司 | Cement kiln bypass air discharge waste heat boiler |
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2015
- 2015-01-12 CN CN201520020642.8U patent/CN204460149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184055A (en) * | 2021-12-16 | 2022-03-15 | 南通万达锅炉有限公司 | Cement kiln bypass air discharge waste heat boiler |
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