CN204746102U - Bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer - Google Patents
Bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer Download PDFInfo
- Publication number
- CN204746102U CN204746102U CN201520352230.4U CN201520352230U CN204746102U CN 204746102 U CN204746102 U CN 204746102U CN 201520352230 U CN201520352230 U CN 201520352230U CN 204746102 U CN204746102 U CN 204746102U
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- CN
- China
- Prior art keywords
- hot
- wind inlet
- aqueous ammonia
- blast
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000006200 vaporizer Substances 0.000 title claims abstract description 20
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 17
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 42
- 230000008020 evaporation Effects 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 230000002829 reductive effect Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer belongs to environmental protection equipment technical field, including barrel, first hot -blast entry, the hot -blast entry of second, aqueous ammonia spray gun and hot air exitus, first hot -blast entry is located the barrel and leans on upper portion, and the hot -blast entry of second is located the middle part of barrel, and hot air exitus is located the barrel lower part, and aqueous ammonia spray gun is located the setting of barrel internal fixation, first hot -blast entry and the hot -blast entry of second are located the tangent line position of barrel excircle respectively. Compared with the prior art, the utility model relates to an aqueous ammonia vaporizer hot -blastly gets into the barrel with the rotatory mode in tangential through two -way messenger with the whirl, forms strong caloic exchange with aqueous ammonia droplet, greatly increased inside hot -blast disturbancly, makes hot -blastly fully to contact with aqueous ammonia droplet, improved the dry evaporation efficiency of aqueous ammonia droplet, the while has still prolonged hot -blast dwell time at reactor, has reduced the reactor height, has practiced thrift raw and other materials.
Description
Technical field
The utility model relates to a kind of chemical industry and prepares liquid vaporising device, and particularly a kind of two inlets accelerates the ammoniacal liquor vaporizer of cyclone-type blowing-type.
Background technology
Selective catalytic reduction flue gas denitration (SCR) is that a kind of operation controls the mature technology simple, denitration efficiency is high.Amino reductive, under catalyst action, optionally generates N2 and H2O with the nitrogen oxide generation reduction reaction in flue gas, thus removes the nitrogen oxide in flue gas, realize pollution reduction.
Current denitrification reducing agent mainly contains liquefied ammonia, urea, ammoniacal liquor three kinds.Wherein, liquefied ammonia is the Class B dangerous material of national regulation, and its transport, storage are all subject to strict restriction; Urea is nontoxic without dangerous, but urea pyrolysis needs to consume a large amount of heats, and there is the problem such as deliquescence and easy Crystallization Plugging; Ammoniacal liquor properties between above two kinds of reducing agents, but has the power plant of ammoniacal liquor accessory substance for surrounding, adopt ammoniacal liquor to have more advantage as denitrification reducing agent.
In prior art, use ammoniacal liquor as reducing agent ammonia, must first ammoniacal liquor be vaporized.Current ammoniacal liquor vapourizing unit many employings single flow, i.e. heat smoke and ammoniacal liquor droplet flow the mode of hybrid radial by evaporimeter.There is in tower the shortcomings such as hot blast perturbation is little, hot blast is short at dwell time in the tower, hot blast skewness in this vaporizer, require higher to height for reactor, in ammoniacal liquor vaporizer engineering application example, the height of vaporizer often needs more than 4m, not only increase investment construction cost, bring difficulty also to the enforcement of the denitration improvement project of some narrow space simultaneously.
Utility model content
The utility model technical issues that need to address are for above-mentioned the deficiencies in the prior art, and providing a kind of tangential direction at cylindrical shell that double air passage air blast is set, raising ammoniacal liquor aerosol and air contact surfaces amass, make full use of the tangential swirl air blast vaporizer of internal tank volume.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of two inlets accelerates cyclone-type ammoniacal liquor vaporizer, comprises cylindrical shell, the first hot-wind inlet, the second hot-wind inlet, ammonia water spray gun and hot-blast outlet; Described first hot-wind inlet is positioned at the top portion of cylindrical shell, and the second hot-wind inlet is positioned at the middle part of cylindrical shell, and described hot-blast outlet is positioned at cylindrical shell bottom, and described ammonia water spray gun is positioned at cylindrical shell internal fixtion and arranges; Described first hot-wind inlet and the second hot-wind inlet are nozzle structure, and the air-flow entering the first hot-wind inlet and the second hot-wind inlet is respectively positioned at the tangent position of close cylindrical shell cylindrical.
As further preferred version, enter the first hot-wind inlet respectively identical with the airflow direction of the second hot-wind inlet.
As further preferred version, described hot-blast outlet is conduction orientation nozzle structure down, and the internal diameter of hot-blast outlet diminishes from top to bottom gradually, and the tube wall of hot-blast outlet is 30 °-60 ° at the angle of inclination that vertical direction is formed.
As further preferred version, described first hot-wind inlet and the second hot-wind inlet arranged in parallel.
As further preferred version, described ammonia water spray gun is arranged near the first hot-wind inlet place.
beneficial effect:
Compared with prior art, a kind of two inlets of the present utility model accelerates cyclone-type ammoniacal liquor vaporizer, mainly through hot blast is tangentially entered vaporizer cylindrical shell from the side, in cylindrical shell, form spiral air flow, considerably increase the perturbation of inner hot blast, make itself and ammoniacal liquor droplet form strong caloic to exchange, abundant contact is so that evenly, improve the dry evaporation efficiency of ammoniacal liquor droplet, extend the time of staying of hot blast in reactor simultaneously, reduce height for reactor, save raw material; The internal diameter of hot-blast outlet diminishes from top to bottom gradually, adds the contact surface of cylindrical shell and ammoniacal liquor liquid, can increase the accumulation time of ammoniacal liquor liquid in cylinder like this, fully contacts with air and evaporates; Ammonia water spray gun is arranged near hot-wind inlet; Hot-wind inlet wind speed is comparatively large, is conducive to the rapid diffusive evaporation of atomized ammonia; And the second hot-wind inlet is set in cylindrical shell middle part, internal heat wind-power can be improved by secondary, play secondary gas flow and accelerate, accelerate the evaporation of cylindrical shell inward eddy.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is air-flow guiding figure in the utility model;
Wherein, 1-cylindrical shell, 2-first hot-wind inlet, 3-second hot-wind inlet, 4-ammonia water spray gun, 5-hot-blast outlet.
Detailed description of the invention
Optimal technical scheme of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in the figure, a kind of two inlets of the present utility model accelerates cyclone-type ammoniacal liquor vaporizer, comprises cylindrical shell 1, first hot-wind inlet 2, second hot-wind inlet 3, ammonia water spray gun 4 and hot-blast outlet 5;
Described first hot-wind inlet 2 is positioned at the top portion of cylindrical shell 1, second hot-wind inlet 3 is positioned at the middle part of cylindrical shell 1, be convenient to air-flow and again improve air velocity when current rate weakens after the first hot-wind inlet 2 enters, described hot-blast outlet 5 is positioned at cylindrical shell 1 bottom, but the first hot-wind inlet 2 also can be arranged on cylindrical shell 1 bottom, hot-blast outlet 5 also can be arranged on cylindrical shell 1 top, determines according to actual working environment;
Described ammonia water spray gun 4 is positioned at cylindrical shell 1 internal fixtion and arranges, ammonia water spray gun 4 is generally and is welded on an inwall place or is lifted on an inner top in cylindrical shell 1, cylinder outside is provided with ammoniacal liquor input pipe, ammonia water spray gun 4 is arranged near the first hot-wind inlet 2 respectively, increase the time that ammoniacal liquor liquid is lowered through air in cylinder, reach and fully contact with air; Described first hot-wind inlet 2 and the second hot-wind inlet 3 are nozzle structure, the air-flow that extraneous air can be concentrated to enter in cylinder leads, avoid air-flow to enter in cylinder and do not form spiral air flow, first hot-wind inlet 2 and the second hot-wind inlet 3, at the tangent position of cylindrical shell 1 cylindrical, ensure that air-flow curls up the flow direction along cylinder inwall in cylinder.
Described hot-blast outlet 5 is conduction orientation nozzle structure down, and the internal diameter of hot-blast outlet 5 diminishes from top to bottom gradually, and the tube wall of hot-blast outlet 5 is 30 °-60 ° at the angle of inclination that vertical direction is formed, and reduces the bore flowing out the mouth of pipe, centralized collection liquid.
Described first hot-wind inlet 2 and the second hot-wind inlet 3 arranged in parallel, wind-force is not offset mutually, and hot-wind inlet wind speed is comparatively large, is conducive to the rapid diffusive evaporation of atomized ammonia.
Introduce on a small quantity from the high-temperature gas of boiler, such as boiler smoke or boiler one/Secondary Air decompose the thermal source of vaporization as ammoniacal liquor, it is inner that hot blast tangentially enters cylindrical shell 1 from hot-wind inlet along vaporizer side, form spiral down current, ammonia water spray gun 4 is arranged in the position near hot-wind inlet 2 in cylindrical shell 1.Under hot blast eddy flow drives, ammoniacal liquor droplet and hot blast mix strongly, are mixed by heat vaporized one-tenth ammonia and steam with the gas uniform of heat.Three's gaseous mixture flows out from hot-blast outlet 5 subsequently, is introduced in follow-up denitration reaction district.
For vaporization thermal source, hot blast temperature should be greater than 250 DEG C, and the gaseous mixture speed of ammonia water spray gun 4 should control at about 0.3 ~ 1m/s.
Ammonia water spray gun 4 should adopt 316 or 316L material make, and easy access and replacing.
For reducing the loss of heat in vaporescence, vaporizer outside should arrange heat-insulation layer.
The foregoing is only the utility model example, not in order to limit the utility model, all any amendment, on an equal basis replacement and improvement etc. done within spirit of the present utility model and principle, all should be included within protection domain of the present utility model.
Claims (5)
1. two inlets accelerates a cyclone-type ammoniacal liquor vaporizer, it is characterized in that: comprise cylindrical shell (1), the first hot-wind inlet (2), the second hot-wind inlet (3), ammonia water spray gun (4) and hot-blast outlet (5); Described first hot-wind inlet (2) is positioned at cylindrical shell (1) top portion, and the second hot-wind inlet (3) is positioned at the middle part of cylindrical shell (1), and described hot-blast outlet (5) is positioned at cylindrical shell (1) bottom, and described ammonia water spray gun (4) is positioned at cylindrical shell (1) internal fixtion and arranges; Described first hot-wind inlet (2) and the second hot-wind inlet (3) are nozzle structure, and the air-flow entering the first hot-wind inlet (2) and the second hot-wind inlet (3) is respectively positioned at the tangent position of close cylindrical shell (1) cylindrical.
2. a kind of two inlets according to claim 1 accelerates cyclone-type ammoniacal liquor vaporizer, it is characterized in that: enter the first hot-wind inlet (2) respectively identical with the airflow direction of the second hot-wind inlet (3).
3. a kind of two inlets according to claim 2 accelerates cyclone-type ammoniacal liquor vaporizer, it is characterized in that: described hot-blast outlet (5) is conduction orientation nozzle structure down, the internal diameter of hot-blast outlet (5) diminishes from top to bottom gradually, and the tube wall of hot-blast outlet (5) is 30 °-60 ° at the angle of inclination that vertical direction is formed.
4. a kind of two inlets according to claim 3 accelerates cyclone-type ammoniacal liquor vaporizer, it is characterized in that: described first hot-wind inlet (2) and the second hot-wind inlet (3) arranged in parallel.
5. a kind of two inlets according to claim 4 accelerates cyclone-type ammoniacal liquor vaporizer, it is characterized in that: described ammonia water spray gun (4) is arranged near the first hot-wind inlet (2) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520352230.4U CN204746102U (en) | 2015-05-28 | 2015-05-28 | Bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520352230.4U CN204746102U (en) | 2015-05-28 | 2015-05-28 | Bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204746102U true CN204746102U (en) | 2015-11-11 |
Family
ID=54460861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520352230.4U Expired - Fee Related CN204746102U (en) | 2015-05-28 | 2015-05-28 | Bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204746102U (en) |
-
2015
- 2015-05-28 CN CN201520352230.4U patent/CN204746102U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Bitangent is to accelerateing cyclone -type aqueous ammonia vaporizer Effective date of registration: 20181120 Granted publication date: 20151111 Pledgee: Bank of Beijing Limited by Share Ltd. Nanjing branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY CO.,LTD. Registration number: 2018320000322 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200911 Granted publication date: 20151111 Pledgee: Bank of Beijing Limited by Share Ltd. Nanjing branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY Co.,Ltd. Registration number: 2018320000322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |