CN104792580B - A kind of liquid film heat exchange absorption tube - Google Patents
A kind of liquid film heat exchange absorption tube Download PDFInfo
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- CN104792580B CN104792580B CN201510201836.2A CN201510201836A CN104792580B CN 104792580 B CN104792580 B CN 104792580B CN 201510201836 A CN201510201836 A CN 201510201836A CN 104792580 B CN104792580 B CN 104792580B
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- chamber
- absorbing liquid
- flue gas
- cooling
- smoke backflow
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Abstract
The invention discloses a kind of liquid film heat exchange absorption tube, including absorbing liquid distributor chamber, flue gas transfer tube, coolant circular chamber, smoke backflow cooling chamber and deep cooling coil pipe；The absorbing liquid distributor chamber is exported provided with absorbing liquid entrance and absorbing liquid, smoke backflow cooling chamber is located in coolant circular chamber, the outlet of flue gas transfer tube and the absorbing liquid outlet of absorbing liquid distributor chamber are connected with the entrance at the top of smoke backflow cooling chamber, the upper end of deep cooling coil pipe is connected through the bottom of coolant circular chamber with the outlet of smoke backflow cooling chamber bottom, and the side of coolant circular chamber upper and lower ends is respectively equipped with cooling liquid outlet and coolant inlet.The present invention can realize the continuous chemical sampling to flue gas, and the precision sampled is high.
Description
Technical field
The invention belongs to energy-conserving and environment-protective field, it is related to a kind of absorption tube, and in particular to a kind of liquid film heat exchange absorption tube.
Background technology
At present, accurate denitration outlet escape ammonia test method is chemical sample analysis method.Chemical sample analysis method
Key be ensure sampling process NH3 do not reduce.Because denitration outlet contains the SO3 gases that concentration is far above NH3, in temperature
When degree is less than 220 DEG C, the sticky ammonium hydrogen sulfate (SO of reaction generation3+2NH3+H2O→(NH4)2SO4).Therefore, the key of sampling Design
It is to be prevented effectively from ammonium hydrogen sulfate to stick delay in tube wall.
Sleeve type escape ammonia sampling apparatus is a kind of effective method of sampling, but adopted due to that must rinse after each sample
The ammonium hydrogen sulfate that sample inside pipe wall sticks, therefore continuous chemical sample can not be carried out, and the accuracy of chemical sample is not high.
The content of the invention
It is an object of the invention to the shortcoming for overcoming above-mentioned prior art, there is provided a kind of liquid film heat exchange absorption tube, the suction
Closed tube can realize the continuous chemical sampling to flue gas, and the precision sampled is high.
To reach above-mentioned purpose, liquid film heat exchange absorption tube of the present invention include absorbing liquid distributor chamber, flue gas transfer tube,
Coolant circular chamber, smoke backflow cooling chamber and deep cooling coil pipe；
The absorbing liquid distributor chamber is exported provided with absorbing liquid entrance and absorbing liquid, and smoke backflow cooling chamber is located at coolant
In circular chamber, the absorbing liquid outlet of the outlet of flue gas transfer tube and absorbing liquid distributor chamber with entering at the top of smoke backflow cooling chamber
Mouth is connected, and the upper end of deep cooling coil pipe is connected through the bottom of coolant circular chamber with the outlet of smoke backflow cooling chamber bottom
Logical, the side of coolant circular chamber upper and lower ends is respectively equipped with cooling liquid outlet and coolant inlet.
The deep cooling coil pipe is serpentine configuration.
The absorbing liquid distributor chamber is cirque structure, and the outside of absorbing liquid distributor chamber is provided with absorbing liquid entrance, absorbing liquid
The inner side of distributor chamber is exported provided with absorbing liquid.
Also include heat-insulating and sealing ring, absorbing liquid distributor chamber is located at the top of coolant circular chamber, and heat-insulating and sealing ring, which is located at, to be inhaled
The top of liquid distributor chamber is received, the lower end of flue gas transfer tube sequentially passes through heat-insulating and sealing ring, absorbing liquid distributor chamber and coolant circulation
Room is connected with the entrance at the top of smoke backflow cooling chamber.
The invention has the advantages that：
When in use, the liquid in absorbing liquid distributor chamber enters smoke backflow to liquid film heat exchange absorption tube of the present invention
In cooling chamber, and on the inwall of smoke backflow cooling chamber formed one layer of liquid film, flue gas through flue gas transfer tube enter flue gas return
Flow in cooling chamber, flue gas constantly cools down the liquid film in chamber interior walls with smoke backflow and collided, and flue gas is cooled, simultaneously
The ammonia in flue gas is all absorbed by liquid film, the ammonia in flue gas is all absorbed by liquid absorption, it is to avoid the ammonia in flue gas sticks stagnant
On the inwall for staying in smoke backflow cooling chamber, while being cooled down by the coolant in coolant circular chamber to liquid film；Flue gas
With absorbing liquid again after deep cooling coil pipe further cooling, make the steam condensation in flue gas and drop in absorbing liquid, and from deep cooling
The outlet discharge of coil pipe lower end, so that the continuous chemical sampling of flue gas is realized, and sampling precision is high, is escaped available for chemical method
In ammonia continuous on-line detection device.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Wherein, 1 it is flue gas transfer tube, 2 be heat-insulating and sealing ring, 3 be deep cooling coil pipe, 4 be absorbing liquid distributor chamber, 5 is flue gas
Backflow cooling chamber, 6 be coolant circular chamber, 7 be liquid film.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to Fig. 1, liquid film heat exchange absorption tube of the present invention includes absorbing liquid distributor chamber 4, flue gas transfer tube 1, cooling
Liquid circular chamber 6, smoke backflow cooling chamber 5 and deep cooling coil pipe 3；Absorbing liquid distributor chamber 4 goes out provided with absorbing liquid entrance and absorbing liquid
Mouthful, smoke backflow cooling chamber 5 is located in coolant circular chamber 6, the outlet of flue gas transfer tube 1 and the absorption of absorbing liquid distributor chamber 4
Entrance of the liquid outlet with the top of smoke backflow cooling chamber 5 is connected, and the upper end of deep cooling coil pipe 3 passes through coolant circular chamber 6
Bottom is connected with the outlet of the bottom of smoke backflow cooling chamber 5, and the side of the upper and lower ends of coolant circular chamber 6 is respectively equipped with cooling
Liquid is exported and coolant inlet.
It should be noted that the deep cooling coil pipe 3 is serpentine configuration；Absorbing liquid distributor chamber 4 is cirque structure, absorbing liquid
The outside of distributor chamber 4 is provided with absorbing liquid entrance, and the inner side of absorbing liquid distributor chamber 4 is exported provided with absorbing liquid.Present invention additionally comprises every
Ring 2 is heated seal, absorbing liquid distributor chamber 4 is located at the top of coolant circular chamber 6, and heat-insulating and sealing ring 2 is located at absorbing liquid distributor chamber 4
Top, the lower end of flue gas transfer tube 1 sequentially passes through heat-insulating and sealing ring 2, absorbing liquid distributor chamber 4 and coolant circular chamber 6 and flue gas
The entrance at the top of backflow cooling chamber 5 is connected.
The present invention specific work process be：
Absorbing liquid is entered in smoke backflow cooling chamber 5 through absorbing liquid distributor chamber 4, and in smoke backflow cooling chamber 5
One layer of liquid film 7 is formed on wall, cooling liquid inlet of the coolant through coolant circular chamber 6 is entered in coolant circular chamber 6, and from
The cooling liquid outlet discharge of coolant circular chamber 6, realizes the cooling to deep cooling coil pipe 3 and the wall of smoke backflow cooling chamber 5, leads to
The cooling to the wall of smoke backflow cooling chamber 5 is crossed to realize the cooling to liquid film 7.High-temperature flue gas is filtered through upstream high temperature dirt catcher
Fall after more than 2 microns flue dust, entered by flue gas transfer tube 1 in smoke backflow cooling chamber 5, and in smoke backflow cooling chamber 5
Formation center downwards, the nearby upward smoke backflow of surrounding liquid film 7, high-temperature flue gas makes cigarette by constantly being collided on liquid film 7
Gas cools, and the ammonia in flue gas is sponged by liquid film 7, when flue gas enters deep cooling 3 entrance of coil pipe with absorbing liquid, the temperature of flue gas
Degree is down to less than 80 DEG C, and flue gas is entered after deep cooling coil pipe 3 with absorbing liquid, and the temperature of flue gas is further reduced, flue gas
In ammonia be transferred completely into liquid, original vapor, which is all condensed to, in flue gas makes flue gas drying in absorbing liquid, finally from
The outlet discharge of the lower end of deep cooling coil pipe 3, so that the continuous chemical sampling to flue gas is realized, and the precision sampled is high.
Claims (1)
- The absorption tube 1. a kind of liquid film exchanges heat, it is characterised in that including absorbing liquid distributor chamber (4), flue gas transfer tube (1), coolant Circular chamber (6), smoke backflow cooling chamber (5) and deep cooling coil pipe (3)；The absorbing liquid distributor chamber (4) exports provided with absorbing liquid entrance and absorbing liquid, and smoke backflow cooling chamber (5) is located at cooling In liquid circular chamber (6), the outlet of flue gas transfer tube (1) and the absorbing liquid outlet of absorbing liquid distributor chamber (4) are cold with smoke backflow But the entrance at the top of room (5) is connected, and the upper end of deep cooling coil pipe (3) passes through bottom and the smoke backflow of coolant circular chamber (6) The outlet of cooling chamber (5) bottom is connected, and the side of coolant circular chamber (6) upper and lower ends is respectively equipped with cooling liquid outlet and cold But liquid entrance；The deep cooling coil pipe (3) is serpentine configuration；The absorbing liquid distributor chamber (4) is cirque structure, and the outside of absorbing liquid distributor chamber (4) is provided with absorbing liquid entrance, absorbed The inner side of liquid distributor chamber (4) is exported provided with absorbing liquid；Also include heat-insulating and sealing ring (2), absorbing liquid distributor chamber (4) is located at the top of coolant circular chamber (6), heat-insulating and sealing ring (2) it is located at the top of absorbing liquid distributor chamber (4), the lower end of flue gas transfer tube (1) sequentially passes through heat-insulating and sealing ring (2), absorbing liquid Distributor chamber (4) and coolant circular chamber (6) are connected with the entrance at the top of smoke backflow cooling chamber (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201836.2A CN104792580B (en) | 2015-04-24 | 2015-04-24 | A kind of liquid film heat exchange absorption tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201836.2A CN104792580B (en) | 2015-04-24 | 2015-04-24 | A kind of liquid film heat exchange absorption tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104792580A CN104792580A (en) | 2015-07-22 |
| CN104792580B true CN104792580B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510201836.2A Active CN104792580B (en) | 2015-04-24 | 2015-04-24 | A kind of liquid film heat exchange absorption tube |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842344Y (en) * | 2005-11-09 | 2006-11-29 | 南化集团研究院 | Falling-film cooler |
| CN101448559A (en) * | 2006-05-23 | 2009-06-03 | 拜尔材料科学股份公司 | Apparatus for cooling gases (quenchers) to form corrosive condensates |
| CN201449347U (en) * | 2009-09-08 | 2010-05-05 | 西安热工研究院有限公司 | Sleeve type escape ammonia sampling system |
| CN102313404A (en) * | 2011-09-05 | 2012-01-11 | 华北电力大学 | Condenser with liquid separation type spiral tube structure |
| CN203425706U (en) * | 2013-07-16 | 2014-02-12 | 国家海洋局天津海水淡化与综合利用研究所 | Device for simultaneous desulfurization and denitrification of seawater flue gas employing membrane absorption process |
| JP2014077614A (en) * | 2012-10-12 | 2014-05-01 | Mitsubishi Chemical Engineering Corp | Falling liquid film evaporation type heat exchanger |
| CN203916446U (en) * | 2014-06-16 | 2014-11-05 | 山西太钢不锈钢股份有限公司 | Desulphurization denitration enriched flue gas cooling device |
| CN204556338U (en) * | 2015-04-24 | 2015-08-12 | 西安热工研究院有限公司 | A kind of liquid film heat exchange absorption tube |
-
2015
- 2015-04-24 CN CN201510201836.2A patent/CN104792580B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2842344Y (en) * | 2005-11-09 | 2006-11-29 | 南化集团研究院 | Falling-film cooler |
| CN101448559A (en) * | 2006-05-23 | 2009-06-03 | 拜尔材料科学股份公司 | Apparatus for cooling gases (quenchers) to form corrosive condensates |
| CN201449347U (en) * | 2009-09-08 | 2010-05-05 | 西安热工研究院有限公司 | Sleeve type escape ammonia sampling system |
| CN102313404A (en) * | 2011-09-05 | 2012-01-11 | 华北电力大学 | Condenser with liquid separation type spiral tube structure |
| JP2014077614A (en) * | 2012-10-12 | 2014-05-01 | Mitsubishi Chemical Engineering Corp | Falling liquid film evaporation type heat exchanger |
| CN203425706U (en) * | 2013-07-16 | 2014-02-12 | 国家海洋局天津海水淡化与综合利用研究所 | Device for simultaneous desulfurization and denitrification of seawater flue gas employing membrane absorption process |
| CN203916446U (en) * | 2014-06-16 | 2014-11-05 | 山西太钢不锈钢股份有限公司 | Desulphurization denitration enriched flue gas cooling device |
| CN204556338U (en) * | 2015-04-24 | 2015-08-12 | 西安热工研究院有限公司 | A kind of liquid film heat exchange absorption tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104792580A (en) | 2015-07-22 |
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