CN105841178B - It is a kind of to remove white haze heat exchanger for desulphurization system - Google Patents
It is a kind of to remove white haze heat exchanger for desulphurization system Download PDFInfo
- Publication number
- CN105841178B CN105841178B CN201610295238.0A CN201610295238A CN105841178B CN 105841178 B CN105841178 B CN 105841178B CN 201610295238 A CN201610295238 A CN 201610295238A CN 105841178 B CN105841178 B CN 105841178B
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- Prior art keywords
- heat exchanger
- pipeline
- cooling
- level
- air inlet
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a kind of white haze heat exchanger is removed for desulphurization system, thoroughly solves the problems, such as white haze, including sequentially connected level-one cooling pipeline, two level cooling pipeline and heating pipeline, it is provided with cooling fin on two level cooling pipeline, drainage arrangement is additionally provided with heating pipeline junction on two level cooling pipeline；Further include chimney flue type heat exchanger and complex phase-change heat exchanger, the air inlet of the chimney flue type heat exchanger outer tube is connect with heating pipeline, the gas outlet of outer tube is connected to the air inlet of complex phase-change heat exchanger condensation segment by pipeline, and the air inlet of the chimney flue type inner tube of heat exchanger is connected to the gas outlet of complex phase-change heat exchanger evaporator section by pipeline.
Description
Technical field
The present invention relates to flue gas heat-exchange unit field more particularly to it is a kind of for desulphurization system remove white haze heat exchanger.
Background technology
With becoming increasingly conspicuous for global environmental problems, " 12th Five-Year Plan " planning proposes, China will realize that SO2 discharges reduce 8%,
For the requirement of country, the active response country of enterprise of high energy consumption and maximum discharge calls, and upper desulfurizer carries out desulfurization, due to de-
A large amount of water can be sprayed into sulphur process, therefore flue-gas temperature is low, in addition water content increases, prevent flue gas from effectively being lifted
It rises, the neat stress with saturated water has partly been condensed into drop in discharge process, white haze phenomenon is formed about in chimney.
It is heated up to neat stress using the heat of former flue gas in such a way that GGH is set for many enterprises of these phenomenons
After discharge；But the cold side and hot side due to GGH are only separated by orifice plate, the connection between tube bank and orifice plate is using sealed connection
（Back seals or the sealing means of other forms）, since the tube expansion of both sides is different, cause the cold and hot side string of GGH
The phenomenon that wind, increases the load of wind turbine, it is contemplated that dewpoint corrosion problem, GGH uses anti-corrosion material, but is directed to flue gas
Aqueous high factor, the operational temperature curve for causing heat exchanger tube often change in the fluctuation of temperature and flue gas, and in flue gas
Moisture be not precipitated, heat exchanger tube is often corroded, therefore failure rate is very high, can not fundamentally solve the problems, such as white haze.
Invention content
The present invention provides a kind of for desulphurization system except white haze heat exchanger utilizes group using the method for segment design
Box-like heat exchanger first cools down to neat stress, heats up again after moisture is precipitated, thoroughly solves the problems, such as white haze.
In order to achieve the above objectives, the scheme that the present invention takes is：It is a kind of for desulphurization system remove white haze heat exchanger, including
Sequentially connected level-one cooling pipeline, two level cooling pipeline and heating pipeline, level-one cooling pipeline are connected with desulfurizing tower outlet, no
If Insulation, in order to cool down, it is provided with cooling fin on the two level cooling pipeline, flue gas is made to be quickly cooled down, two level cooling
It is additionally provided with drainage arrangement with heating pipeline junction on pipeline, the moisture that flue gas cooling is precipitated is discharged；It further include chimney flue type
The air inlet of heat exchanger and complex phase-change heat exchanger, the chimney flue type heat exchanger outer tube is connect with heating pipeline, the outlet of outer tube
Mouthful be connected to by pipeline with the air inlet of complex phase-change heat exchanger condensation segment, the air inlet of the chimney flue type inner tube of heat exchanger with answer
The gas outlet for closing phase-change heat-exchanger evaporator section is connected to by pipeline.
As an optimization, drum, vapour are connected with by pipeline between the condensation segment and evaporator section of the complex phase-change heat exchanger
It wraps and is equipped with regulator, steam pressure in the pipe in order to control evaporator section controls the tube wall temperature of evaporator section in dew point
On corrosion temperature.
As an optimization, it is provided with fin in the chimney flue type inner tube of heat exchanger, is used for augmentation of heat transfer.
The beneficial effects of the invention are as follows：The cooling of former flue gas and the heating of neat stress are real according to dew point corrosion temperature substep
It is existing, different structure type is used according to temperature characterisitic, economically more rationally；Using chimney flue type heat exchanger, cigarette is taken full advantage of
The trend in road, more smooth in flow, the processing of Anticorrosion is more easy；Neat stress first cools down to heat up afterwards, passes through this side
Most of mechanical water in flue gas is precipitated in formula, thoroughly solves white haze phenomenon, the cooling of the warming-up section of neat stress and former flue gas
Duan Caiyong composite phase-change systems can control tube wall temperature, anti-corrosion and accumulatingdust, while cooling and the low-temperature zone of neat stress high temperature section
Heating the problem of using independent equipment, avoiding in GGH cold and hot side string wind caused by the limitation of sealing structure.
Description of the drawings
Fig. 1 is structure of the invention flow diagram.
Specific implementation mode
Below in conjunction with the accompanying drawings, technical scheme of the present invention is clearly and completely described.
As shown in Figure 1 it is a kind of for desulphurization system remove white haze heat exchanger, including sequentially connected level-one cooling pipeline 1,
Two level cools down pipeline 3 and heating pipeline 4, and cooling fin 2 is provided on two level cooling pipeline 3, and two level, which cools down, manages with heating on pipeline
The junction in road 4 is additionally provided with drainage arrangement 11；Further include chimney flue type heat exchanger and complex phase-change heat exchanger, chimney flue type heat exchanger
The air inlet of outer tube 5 is connect with heating pipeline 4, and the gas outlet of outer tube 5 and the air inlet of complex phase-change heat exchanger condensation segment 6 pass through
Pipeline is connected to, and the gas outlet of the air inlet and complex phase-change heat exchanger evaporator section 8 of chimney flue type inner tube of heat exchanger 10 is connected by pipeline
It is logical, the fin 9 for augmentation of heat transfer is provided in inner tube 10.
Drum 7 is connected with by pipeline between the condensation segment 6 and evaporator section 8 of complex phase-change heat exchanger, drum 7, which is equipped with, to be adjusted
Pressure device, steam pressure in the pipe in order to control evaporator section 8 control the tube wall temperature of evaporator section 8 in dew point corrosion temperature
On, avoid dew point corrosion phenomenon from occurring.
The former flue gas cool-down of the utility model heat exchanger point and neat stress heating designing two portions, all in accordance with its dew point corrosion temperature pair
Heat transmission equipment is configured.The cooling of former flue gas is divided into high-temperature part cooling and low temperature partial warm down, and wherein high-temperature part cools down
It is carried out in complex phase-change heat exchanger evaporator section 8,20 DEG C ~ 25 DEG C of this stage temperature drop, low temperature partial warm down is by leading to former flue gas
The inner tube 10 for entering chimney flue type heat exchanger carries out, and by 5 DEG C ~ 8 DEG C, the former flue gas after two benches cool down enters follow-up this stage temperature
System.
First cooling is handled before neat stress heating, and neat stress is flowed out from desulfurizing tower, is first passed through in level-one cooling pipeline, two level drop
Cool down in warm pipeline, 3 DEG C ~ 5 DEG C of temperature drop, the mechanical water for the precipitation that cools down is discharged by drainage arrangement 11, the net cigarette after cooling
Gas enters the outer tube 5 of chimney flue type heat exchanger through the pipeline 4 that heats up, and is once heated up using the temperature of former flue gas, 5 DEG C of Wen Shengyue,
Secondary temperature elevation is carried out subsequently into the condensation segment of complex phase-change heat exchanger, flue-gas temperature rises to about 80 DEG C, by flue gas emission.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention, it is noted that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, also should be regarded as the present invention
Protection domain.
Claims (3)
1. a kind of removing white haze heat exchanger for desulphurization system, it is characterised in that：Including sequentially connected level-one cooling pipeline, two
Grade cooling pipeline and heating pipeline, are provided with cooling fin on two level cooling pipeline, two level cool down on pipeline with heating pipeline
Junction is additionally provided with drainage arrangement；Further include chimney flue type heat exchanger and complex phase-change heat exchanger, outside the chimney flue type heat exchanger
The air inlet of pipe is connect with heating pipeline, and neat stress is flowed out from desulfurizing tower, is first passed through in level-one cooling pipeline, two level cooling pipeline
Inside cool down, the mechanical water for the precipitation that cools down is discharged by drainage arrangement, and the neat stress after cooling enters flue through the pipeline that heats up
The outer tube of formula heat exchanger is once heated up using the temperature of former flue gas；
The gas outlet of outer tube is connected to the air inlet of complex phase-change heat exchanger condensation segment by pipeline, in the chimney flue type heat exchanger
The air inlet of pipe is connected to the gas outlet of complex phase-change heat exchanger evaporator section by pipeline.
2. a kind of according to claim 1 remove white haze heat exchanger for desulphurization system, it is characterised in that：The composite phase-change
Drum is connected with by pipeline between the condensation segment and evaporator section of heat exchanger, the drum is equipped with regulator.
3. a kind of according to claim 1 remove white haze heat exchanger for desulphurization system, it is characterised in that：The chimney flue type changes
It is provided with fin in hot device inner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295238.0A CN105841178B (en) | 2016-05-06 | 2016-05-06 | It is a kind of to remove white haze heat exchanger for desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295238.0A CN105841178B (en) | 2016-05-06 | 2016-05-06 | It is a kind of to remove white haze heat exchanger for desulphurization system |
Publications (2)
| Publication Number | Publication Date |
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| CN105841178A CN105841178A (en) | 2016-08-10 |
| CN105841178B true CN105841178B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610295238.0A Expired - Fee Related CN105841178B (en) | 2016-05-06 | 2016-05-06 | It is a kind of to remove white haze heat exchanger for desulphurization system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107019986A (en) * | 2017-04-21 | 2017-08-08 | 南京常荣声学股份有限公司 | The method and device of plume drops in a kind of cooling high-temperature fume and acoustic agglomeration water lift |
| CN108525503A (en) * | 2018-06-14 | 2018-09-14 | 河北星耀环境科技有限公司 | A kind of flue gas disappears white device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5445673A (en) * | 1977-09-19 | 1979-04-11 | Kobe Steel Ltd | Waste gas treatment method |
| CN102058994A (en) * | 2010-12-08 | 2011-05-18 | 东南大学 | Device and method for condensing, drying and heating flue gas |
| CN102500199A (en) * | 2011-11-10 | 2012-06-20 | 南京圣诺热管有限公司 | Flue gas dehydrating and reheating method and device |
| CN104235864A (en) * | 2013-06-13 | 2014-12-24 | 烟台龙源电力技术股份有限公司 | Flue gas moisture recovery system and method |
| CN204694131U (en) * | 2015-05-05 | 2015-10-07 | 北京海淀中京工程设计软件技术有限公司 | A kind of complex phase-change heat exchanger |
| CN205007792U (en) * | 2015-08-25 | 2016-02-03 | 贺方昀 | Wet flue gas desulfurization flue gas processing mechanism |
| CN205560809U (en) * | 2016-05-06 | 2016-09-07 | 山东岱荣节能环保科技有限公司 | A remove white fog heat exchanger for desulfurization system |
-
2016
- 2016-05-06 CN CN201610295238.0A patent/CN105841178B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5445673A (en) * | 1977-09-19 | 1979-04-11 | Kobe Steel Ltd | Waste gas treatment method |
| CN102058994A (en) * | 2010-12-08 | 2011-05-18 | 东南大学 | Device and method for condensing, drying and heating flue gas |
| CN102500199A (en) * | 2011-11-10 | 2012-06-20 | 南京圣诺热管有限公司 | Flue gas dehydrating and reheating method and device |
| CN104235864A (en) * | 2013-06-13 | 2014-12-24 | 烟台龙源电力技术股份有限公司 | Flue gas moisture recovery system and method |
| CN204694131U (en) * | 2015-05-05 | 2015-10-07 | 北京海淀中京工程设计软件技术有限公司 | A kind of complex phase-change heat exchanger |
| CN205007792U (en) * | 2015-08-25 | 2016-02-03 | 贺方昀 | Wet flue gas desulfurization flue gas processing mechanism |
| CN205560809U (en) * | 2016-05-06 | 2016-09-07 | 山东岱荣节能环保科技有限公司 | A remove white fog heat exchanger for desulfurization system |
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| CN105841178A (en) | 2016-08-10 |
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Effective date of registration: 20190411 Address after: 210031 Room 201, 14 Building, Headquarters Business Plaza, No. 5 Puzhu North Road, Jiangbei New District, Nanjing City, Jiangsu Province Patentee after: Nanjing Xuzheng Engineering Technology Co., Ltd. Address before: 271100 No. 58 Shuangyuan Street, Lixin Town Industrial Park, Laiwu City, Shandong Province Patentee before: Shandong Dai Rong energy-conserving and environment-protective Science and Technology Ltd. |
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Granted publication date: 20181019 Termination date: 20200506 |