CN203017796U - Dehumidifying defogging device of moisture in condensed smoke - Google Patents
Dehumidifying defogging device of moisture in condensed smoke Download PDFInfo
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- CN203017796U CN203017796U CN2013200099658U CN201320009965U CN203017796U CN 203017796 U CN203017796 U CN 203017796U CN 2013200099658 U CN2013200099658 U CN 2013200099658U CN 201320009965 U CN201320009965 U CN 201320009965U CN 203017796 U CN203017796 U CN 203017796U
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- heat exchanger
- flue gas
- exchanger tube
- smoke
- dehumidifying
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Abstract
The utility model discloses a dehumidifying defogging device of moisture in condensed smoke. The problems that the existing condensed wet smoke treatment equipment is hard to reduce the fogdrop content in the wet smoke and the chimney rain is formed are solved. The dehumidifying defogging device of moisture in condensed smoke comprises a plurality of heat exchange pipes for communicating the cooling medium, two ends of the heat exchange pipe are provided with channels, each channel is communicated with the heat exchange pipe, the channel at one end of the heat exchange pipe is provided with a cooling liquid inlet, the channel at the other end of the heat exchange pipe is provided with a cooling liquid outlet, and a slot is formed between the two adjacent heat exchange pipes. The water content in the smoke is reduced, and the forming base of the chimney rain is eliminated; and meanwhile, due to the reduced water content in the smoke, the blocking and corrosion of the smoke to GGH (gas-gas eater) are greatly reduced, the heat transferring efficiency of the GGH is improved, and the GGH outlet smoke temperature is improved.
Description
Technical field
The utility model relates to and belongs to the smoke-gas wet desulfurization technical field, particularly the device of the dehumidifying demist of steam in a kind of wet-method desulfurized fume that can condense.
Background technology
At present, international and domestic flue gas desulfurization technique adopts wet desulfurizing process more than 80%, flue gas wet desulphurization process generally arranges the two-layer demister of being made by the PP material on the spraying layer of absorption tower, and after this demister demist, flue fog drip content is general≤65mg/Nm
3, helpless to the saturation vapour in flue gas.Flue gas after demist or directly by smoke stack emission, or pass through again GGH(gas-gas heat exchanger) after heat exchange again by smoke stack emission.
If this flue gas directly discharges by chimney, steam after the cold air of wet flue gas in touching atmosphere in flue gas can condense into little water droplet, these little water droplets further adsorb the droplet of taking out of in steam in flue gas and flue gas, form larger water droplet and drop to ground, form " chimney rain ".Because water droplet becomes acid, pH value between 5～6, and, with the gypsum and other solid particle, have a strong impact on surrounding enviroment in " chimney rain ".If this flue gas is emptying again after heating by GGH, the steam in flue gas and droplet are when passing through the heat-transfer surface of GGH, and steam, droplet are by evaporate to dryness, and the solid particle in steam, droplet can stick on the heat-transfer area of GGH, make GGH that fouling, obstruction and corrosion occur.On the other hand, due in the steam in flue gas after wet process of FGD, droplet with a large amount of solid particles and metal ion, directly diffuse in atmosphere, to make that in tail gas, dust content increases, and in especially new " thermal power plant atmosphere pollutants emission standards ", dust be required to satisfy≤30mg/Nm
3Emission request, require to satisfy≤20mg/Nm the key area
3Emission request, only use conventional demister to be difficult to reach requirement, cause regional environment PM2.5 index to raise.Someone proposes to increase wet electrical dust precipitator after the former conventional demister in absorption tower, but wet electrical dust precipitator exists and takes up an area greatly, corrosion, the shortcomings such as operation and maintenance cost height.
The utility model content
The droplet content that is difficult to reduce wet flue gas in order to overcome the existing wet flue gas treatment facility that condenses, thereby form the deficiency of chimney rain, the utility model aims to provide the dehumidifying demister of steam in a kind of flue gas that condenses, this dehumidifying demister can reduce the water content in flue gas, eliminates the formation of chimney rain.
To achieve these goals, the technical scheme that adopts of the utility model is:
The dehumidifying demister of steam in a kind of flue gas that condenses, its design feature be, comprises the many heat exchanger tubes that are used for the circulation cooling medium, and described heat exchanger tube two ends are provided with bobbin carriage, and described bobbin carriage is communicated with heat exchanger tube; Have the cooling fluid entrance on the bobbin carriage of described heat exchanger tube one end, have cooling liquid outlet on the bobbin carriage of this heat exchanger tube other end; Has the gap between adjacent two heat exchanger tubes.
Be below the technical scheme of further improvement of the utility model:
In order to improve heat transfer effect, described heat exchanger tube is provided with fin.Further, described fin is curved fins, and the arc of the curved fins back of the body is towards the flow direction of wet flue gas.
In order to improve the intensity of device, be connected by gripper shoe between adjacent two heat exchanger tubes.
In order to prevent wet flue gas to the corrosion of device, described heat exchanger tube and fin adopt the material of anti-flue gas corrosion to make.
The bottom of described heat exchanger tube is provided with discontinuous and nonocclusive supporting construction, when guaranteeing the heat exchanger tube bonding strength, has avoided damming to wet flue gas.
By said structure, the utility model comprises that a row or several rows with the heat exchanger tube of wing plate, walks cooling medium in pipe, walks wet flue gas between pipe; The heat exchanger tube two ends are connected to bobbin carriage, and heat exchanger tube bottom is provided with discontinuous nonocclusive supporting construction.Walk cooling medium in bobbin carriage and heat exchanger tube, warm and humid flue gas flows in the heat exchanger tube gap.Be associated with fin on heat exchanger tube, heat exchanger tube keeps certain spacing, and the fin design camber forms when making smoke gas flow cross between pipe and turns back, circles round.Heat exchanger tube closely is connected with fin, when cooling medium flows in heat exchanger tube, can keep the cooling of heat exchanger tube and fin.Further, curved fins can be smooth, also can make with concavo-convex.What be connected with fin can be one deck by regularly arranged heat exchanger tube, can be also multilayer.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by dehumidifying, the demister of steam increase a kind of flue gas that can condense after the conventional demister in absorption tower in, this dehumidifying, demister are by making the condensation vapor in flue gas become dew to drip, dew drips the steam that further absorbs in flue gas and droplet forms the globule or current are got back to desulfuration absorbing tower, thereby the water content in the reduction flue gas has been avoided the formation of chimney rain.Simultaneously, due to the minimizing of water content in flue gas, can greatly alleviate flue gas to obstruction, the corrosion of GGH, improve the heat transfer efficiency of GGH, improve the GGH exit gas temperature.
Below in conjunction with drawings and Examples, the utility model is further elaborated.
Description of drawings
Fig. 1 is the structure principle chart of a kind of embodiment of the utility model;
Fig. 2 is the A--A cutaway view of Fig. 1.
In the drawings
The 1-gap; The 2-heat exchanger tube; The 3-bobbin carriage; The 4-fin; The 5-gripper shoe; The 6-supporting construction.
The specific embodiment
The dehumidifying demister of steam in a kind of flue gas that condenses as illustrated in fig. 1 and 2, comprises the many heat exchanger tubes 2 that are used for the circulation cooling medium, and described heat exchanger tube 2 two ends are provided with bobbin carriage 3, and described bobbin carriage 3 is communicated with heat exchanger tube 2; Have the cooling fluid entrance on the bobbin carriage 3 of described heat exchanger tube 2 one ends, have cooling liquid outlet on the bobbin carriage 3 of these heat exchanger tube 2 other ends; Has gap 1 between adjacent two heat exchanger tubes 2.Described heat exchanger tube 2 is provided with curved fins 4, and the arc of the curved fins back of the body is towards the flow direction of wet flue gas.Be connected by gripper shoe 5 between adjacent two heat exchanger tubes 2.Described heat exchanger tube 2 and fin 4 adopt the material of anti-flue gas corrosion to make.The bottom of described heat exchanger tube 2 is provided with discontinuous and nonocclusive supporting construction 6.Thus, walk cooling medium in heat exchanger tube 2, walk wet flue gas outside heat exchanger tube 2.The heat exchanger tube 2 that is arranged in parallel and the gripper shoe 5 that connects on heat exchanger tube is connected are separated into many cells with the rising flue gas, and flue gas rises along these cells, encounters the fin 4 that is connected on heat exchanger tube 2.Owing to walking cooling medium in heat exchanger tube 2, so these fins 4 that are connected on heat exchanger tube 2 remain on lower temperature always, flue gas is when meeting these fins 4, steam in flue gas can form to reveal on these fins 4 and drip, simultaneously, the droplet of carrying secretly in flue gas also may stick on these fins 4, make on fin 4 with a lot of droplets, these droplets further adsorb steam and the droplet in flue gas, form the bulky grain globule, if these globules are enough large, flue gas can not be wrapped up in band toward falling, and gets back to bottom, absorption tower slurry pool.If the globule is large not, the suitable fin of these globules 4 surfaces flow into flue gas, to be wrapped up in band by flue gas, due to fin 4 cambers, flue gas is through forming catadioptric, convolution after fin, the globule in flue gas is catadioptric motion in flue gas, further adsorbs steam and droplet in flue gas, after the fin 4 of encountering next stage, will stick on fin 4 and form the globule and remove.The alloy of the anti-flue gas corrosion of employing of this dehumidifying, demister is made.
The content that above-described embodiment is illustrated should be understood to these embodiment and only is used for being illustrated more clearly in the utility model, and be not used in the restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
Claims (6)
1. the dehumidifying demister of steam in the flue gas that condenses, is characterized in that, comprises the many heat exchanger tubes (2) that are used for the circulation cooling medium, and described heat exchanger tube (2) two ends are provided with bobbin carriage (3), and described bobbin carriage (3) is communicated with heat exchanger tube (2); Have the cooling fluid entrance on the bobbin carriage (3) of described heat exchanger tube (2) one ends, have cooling liquid outlet on the bobbin carriage (3) of this heat exchanger tube (2) other end; Has gap (1) between adjacent two heat exchanger tubes (2).
2. the dehumidifying demister of steam in the flue gas that condenses according to claim 1, is characterized in that, described heat exchanger tube (2) is provided with fin (4).
3. the dehumidifying demister of steam in the flue gas that condenses according to claim 2, is characterized in that, described fin (4) is curved fins, and the arc of the curved fins back of the body is towards the flow direction of wet flue gas.
4. the dehumidifying demister of steam in one of according to claim 1 ~ 3 described flue gases that condense, is characterized in that, is connected by gripper shoe (5) between adjacent two heat exchanger tubes (2).
5. the dehumidifying demister of steam in the according to claim 2 or 3 described flue gases that condense, is characterized in that, described heat exchanger tube (2) and fin (4) adopt the material of anti-flue gas corrosion to make.
6. the dehumidifying demister of steam in the flue gas that condenses according to claim 1, is characterized in that, the bottom of described heat exchanger tube (2) is provided with discontinuous and nonocclusive supporting construction (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200099658U CN203017796U (en) | 2013-01-09 | 2013-01-09 | Dehumidifying defogging device of moisture in condensed smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200099658U CN203017796U (en) | 2013-01-09 | 2013-01-09 | Dehumidifying defogging device of moisture in condensed smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203017796U true CN203017796U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200099658U Expired - Lifetime CN203017796U (en) | 2013-01-09 | 2013-01-09 | Dehumidifying defogging device of moisture in condensed smoke |
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|---|---|
| CN (1) | CN203017796U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645802A (en) * | 2013-11-21 | 2015-05-27 | 北京皓天百能环保工程有限公司 | Desulfurization process and desulfurization apparatus with thermal pump for improving water mist removal effect |
| CN104984560A (en) * | 2015-07-13 | 2015-10-21 | 南通亚泰工程技术有限公司 | Flue gas dewatering system |
| CN105406732A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Intelligent temperature-controlled rectifier cabinet system |
| CN105406731A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Intelligent rectifier cabinet and temperature control method thereof |
| CN105983287A (en) * | 2015-01-27 | 2016-10-05 | 德梅斯特(上海)环保科技有限公司 | High-effective dust and mist removal integrated system |
| CN108355465A (en) * | 2018-03-01 | 2018-08-03 | 佛山赛因迪环保科技有限公司 | Desulfurization fume defogging method and device |
| WO2019015443A1 (en) * | 2017-07-19 | 2019-01-24 | 上海伏波环保设备有限公司 | Heating and demisting apparatus of desulfurization tower |
| CN109908619A (en) * | 2019-02-28 | 2019-06-21 | 南京圣创科技有限公司 | A kind of method and apparatus of tubular type condensation dehydrating demisting |
-
2013
- 2013-01-09 CN CN2013200099658U patent/CN203017796U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645802A (en) * | 2013-11-21 | 2015-05-27 | 北京皓天百能环保工程有限公司 | Desulfurization process and desulfurization apparatus with thermal pump for improving water mist removal effect |
| CN104645802B (en) * | 2013-11-21 | 2017-07-07 | 北京皓天百能环保工程有限公司 | The sulfur removal technology and device of water removal fog effect are improved using heat pump |
| CN105983287A (en) * | 2015-01-27 | 2016-10-05 | 德梅斯特(上海)环保科技有限公司 | High-effective dust and mist removal integrated system |
| CN104984560A (en) * | 2015-07-13 | 2015-10-21 | 南通亚泰工程技术有限公司 | Flue gas dewatering system |
| CN105406732A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Intelligent temperature-controlled rectifier cabinet system |
| CN105406731A (en) * | 2015-11-30 | 2016-03-16 | 成都德善能科技有限公司 | Intelligent rectifier cabinet and temperature control method thereof |
| CN105406731B (en) * | 2015-11-30 | 2018-06-26 | 马鞍山纽泽科技服务有限公司 | A kind of intelligence rectifier cabinet and its temperature control method |
| WO2019015443A1 (en) * | 2017-07-19 | 2019-01-24 | 上海伏波环保设备有限公司 | Heating and demisting apparatus of desulfurization tower |
| CN108355465A (en) * | 2018-03-01 | 2018-08-03 | 佛山赛因迪环保科技有限公司 | Desulfurization fume defogging method and device |
| CN109908619A (en) * | 2019-02-28 | 2019-06-21 | 南京圣创科技有限公司 | A kind of method and apparatus of tubular type condensation dehydrating demisting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |