CN204824242U - Flue of extension spraying liquid drop evaporation stroke - Google Patents
Flue of extension spraying liquid drop evaporation stroke Download PDFInfo
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- CN204824242U CN204824242U CN201520568878.5U CN201520568878U CN204824242U CN 204824242 U CN204824242 U CN 204824242U CN 201520568878 U CN201520568878 U CN 201520568878U CN 204824242 U CN204824242 U CN 204824242U
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Abstract
The utility model discloses a flue of extension spraying liquid drop evaporation stroke, including flue outer sleeve (1) and flue inner skleeve (2), flue inner skleeve (2) are fixed in flue outer sleeve (1), evenly are equipped with spirally guided blade (3) on flue inner skleeve (2), be equipped with atomizer (4) in flue inner skleeve (2), atomizer (4) link to each other with desulfurization waste pipe (5). The utility model discloses can be on the basis that does not increase equipment investment and operating power consumption, the evaporation stroke of extension liquid drop in the flue, the evaporation efficiency of improvement liquid drop.
Description
Technical field
The utility model relates to a kind of flue extending spray droplet evaporation stroke, belongs to technical field of mechanical equipment.
Background technology
Existing desulfurization wastewater conventional processes is complicated, operation amount controls greatly, not easily automatically, and most power plant operation result is undesirable, and the waste water after process still has very high chlorine ion concentration, extremely strong to the corrodibility of metal and equipment, cause the desulfurization wastewater after processing cannot be back to other system.Desulfurization wastewater flue evaporation technique of zero discharge, by desulfurization wastewater is sprayed into flue between electric precipitator and air preheater by nozzle atomization, atomizing droplet group absorbs fume afterheat and evaporates rapidly in flue.This process utilizes fume afterheat to realize waste water evaporation, eliminates the energy expenditure of evaporative process; Discharge without waste water, really achieve the zero release of waste water.The method investment is less, and running cost is lower, non-secondary pollution, is the treatment technology of present power plant desulfurization waste water most potentiality.
Report the earliest about desulfurization wastewater flue evaporation technique of zero discharge starts from Mitsubishi heavy industry, also has research application in the U.S. and some countries of Europe.This technology also started to be subject to extensive concern in China in recent years, and University Of Chongqing, Southeast China University, Zhejiang University, Xi'an thermal technology institute, Sheng hair ring guarantor etc. have relevant research report.But because the flue gas of desulfurization wastewater flue evaporative process exports from air preheater, flue-gas temperature is usually at 130 DEG C ~ 160 DEG C, and the water content of desulfurization wastewater is higher (being not less than 95%); And by power plant's existing space and structural limitations, the flue length for spray evaporation is very limited.How to ensure that exhausted water drops in flue that to evaporate completely, avoid causing to the harm of flue inner wall and follow-up dust removal installation be an emphasis of research now.Realize above-mentioned target, a kind of approach reduces the size of atomizing droplet, and the method increases facility investment and operation energy consumption is cost; Another kind of approach is the vaporization efficiency extending the evaporation stroke of drop in flue, improve drop, but does not also have corresponding equipment for the method at present.
Utility model content
The purpose of this utility model is, provides a kind of flue extending spray droplet evaporation stroke, and it on the basis not increasing facility investment and operation energy consumption, can extend the evaporation stroke of drop in flue, improves the vaporization efficiency of drop.
The technical solution of the utility model: a kind of flue extending spray droplet evaporation stroke, comprise flue outer sleeve and flue inner sleeve, flue inner sleeve is fixed in flue outer sleeve, it is characterized in that: flue inner sleeve is evenly provided with spiral guide blade; Be provided with spraying gun in flue inner sleeve, spraying gun is connected with desulfurization wastewater pipeline.
In the flue of aforesaid this prolongation spray droplet evaporation stroke, the cross-sectional shape of flue outer sleeve and flue inner sleeve is circular or rectangle.
In the flue of aforesaid this prolongation spray droplet evaporation stroke, the spray direction of described spraying gun and gas flow principal direction and flow, adverse current or cross-flow.
In the flue of aforesaid this prolongation spray droplet evaporation stroke, the spray angle of spraying gun is 20 ° ~ 60 °.
In the flue of aforesaid this prolongation spray droplet evaporation stroke, the spray angle of spraying gun is 45 °.
Compared with prior art, the utility model, in the two sleeve mechanism of employing, makes high-temperature gas do rotational flow under the effect of rotational guide vane.Desulfurization wastewater droplet, after entering flue inner sleeve, evaporates under the drive of swirling eddy, and the evaporation stroke of droplet in the flue of finite length extends greatly; Under cyclonic action, between flue gas and droplet, quality and energy exchange speed are accelerated, and droplet vaporization efficiency significantly improves; Large droplet particle can realize evaporating completely in the flue of finite length, effectively avoids the possibility of spray evaporation process to flue and the corrosion of follow-up dust removal installation to endanger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Being labeled as in accompanying drawing: 1-flue outer sleeve, 2-flue inner sleeve, 3-spiral guide blade, 4-spraying gun, 5-desulfurization wastewater pipeline.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1 of the present utility model: as shown in Figure 1, a kind of flue extending spray droplet evaporation stroke, comprise flue outer sleeve 1 and flue inner sleeve 2, flue inner sleeve 2 is fixed in flue outer sleeve 1, and flue inner sleeve 2 is evenly provided with spiral guide blade 3; Be provided with spraying gun 4 in flue inner sleeve 2, spraying gun 4 is connected with desulfurization wastewater pipeline 5.The cross-sectional shape of flue outer sleeve 1 and flue inner sleeve 2 is circular.The spray direction of described spraying gun 4 and gas flow principal direction also flow.The spray angle of spraying gun 4 is 45 °.
Embodiment 2 of the present utility model: a kind of flue extending spray droplet evaporation stroke, comprise flue outer sleeve 1 and flue inner sleeve 2, flue inner sleeve 2 is fixed in flue outer sleeve 1, and flue inner sleeve 2 is evenly provided with spiral guide blade 3; Be provided with spraying gun 4 in flue inner sleeve 2, spraying gun 4 is connected with desulfurization wastewater pipeline 5.The cross-sectional shape of flue outer sleeve 1 and flue inner sleeve 2 is rectangle.The spray direction of described spraying gun 4 and gas flow principal direction adverse current.The spray angle of spraying gun 4 is 20 °.
Embodiment 3 of the present utility model: a kind of flue extending spray droplet evaporation stroke, comprise flue outer sleeve 1 and flue inner sleeve 2, flue inner sleeve 2 is fixed in flue outer sleeve 1, and flue inner sleeve 2 is evenly provided with spiral guide blade 3; Be provided with spraying gun 4 in flue inner sleeve 2, spraying gun 4 is connected with desulfurization wastewater pipeline 5.The cross-sectional shape of flue outer sleeve 1 and flue inner sleeve 2 is circular.The spray direction of described spraying gun 4 and the cross-flow of gas flow principal direction.The spray angle of spraying gun 4 is 60 °.
Principle of work of the present utility model: flue outer sleeve 1 is connected with the smoke discharging pipe of air preheater with one end of flue inner sleeve 2, the other end is communicated with fly-ash separator, high-temperature flue gas straight line from air preheater enters flue inner sleeve 2, high-temperature gas enters from the interlayer of flue outer sleeve 1 with flue inner sleeve 2, tangentially enters flue inner sleeve 2 and do rotational flow under the effect of spiral guide blade 3.Direct current flue gas and rotary gas form mixed flue gas stream in flue inner sleeve 2, sprayed in flue inner sleeve 2, and mix with flue gas by desulfurization wastewater by spraying gun 4.In whole flue inner sleeve 2, introduce eddy flow, add liquid phase to flowing.This kind of method realizes the effect extending droplet evaporation stroke protection fly-ash separator and the fouling of anti-flue wall simultaneously, avoids not evaporating the harm of droplet to flue and the corrosion of follow-up dust removal installation.Rotational flow gas has distribution at whole flue near wall, better protects flue inner wall.
High-temperature gas can be the high-temperature flue gas from air preheater, also can be other source high-temperature flue gas, heated air or superheated vapours etc.When high-temperature gas is from other approach, while protection flue wall good antiscale property, also add the heat smoke amount in flue, improve the steam capability of flue.This system is equally applicable to vertical flue.
Claims (5)
1. one kind extends the flue of spray droplet evaporation stroke, comprise flue outer sleeve (1) and flue inner sleeve (2), flue inner sleeve (2) is fixed in flue outer sleeve (1), it is characterized in that: flue inner sleeve (2) is evenly provided with spiral guide blade (3); Be provided with spraying gun (4) in flue inner sleeve (2), spraying gun (4) is connected with desulfurization wastewater pipeline (5).
2. a kind of flue extending spray droplet evaporation stroke according to claim 1, is characterized in that: the cross-sectional shape of flue outer sleeve (1) and flue inner sleeve (2) is circular or rectangle.
3. a kind of flue extending spray droplet evaporation stroke according to claim 1 and 2, is characterized in that: the spray direction of described spraying gun (4) and gas flow principal direction and flow, adverse current or cross-flow.
4. a kind of flue extending spray droplet evaporation stroke according to claim 3, is characterized in that: the spray angle of spraying gun (4) is 20 ° ~ 60 °.
5. a kind of flue extending spray droplet evaporation stroke according to claim 4, is characterized in that: the spray angle of spraying gun (4) is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568878.5U CN204824242U (en) | 2015-07-31 | 2015-07-31 | Flue of extension spraying liquid drop evaporation stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568878.5U CN204824242U (en) | 2015-07-31 | 2015-07-31 | Flue of extension spraying liquid drop evaporation stroke |
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| Publication Number | Publication Date |
|---|---|
| CN204824242U true CN204824242U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520568878.5U Active CN204824242U (en) | 2015-07-31 | 2015-07-31 | Flue of extension spraying liquid drop evaporation stroke |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348373A (en) * | 2016-11-03 | 2017-01-25 | 永清环保股份有限公司 | Wastewater evaporation equipment and wastewater treatment method and device |
| CN110372057A (en) * | 2019-07-15 | 2019-10-25 | 上海发电设备成套设计研究院有限责任公司 | A kind of wastewater treatment flue evaporator of anti-wall surface dust stratification |
-
2015
- 2015-07-31 CN CN201520568878.5U patent/CN204824242U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348373A (en) * | 2016-11-03 | 2017-01-25 | 永清环保股份有限公司 | Wastewater evaporation equipment and wastewater treatment method and device |
| CN110372057A (en) * | 2019-07-15 | 2019-10-25 | 上海发电设备成套设计研究院有限责任公司 | A kind of wastewater treatment flue evaporator of anti-wall surface dust stratification |
| CN110372057B (en) * | 2019-07-15 | 2024-08-20 | 上海发电设备成套设计研究院有限责任公司 | Waste water treatment flue evaporator capable of preventing wall area ash |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |