CN110065955A - Ammonia gas generating device - Google Patents
Ammonia gas generating device Download PDFInfo
- Publication number
- CN110065955A CN110065955A CN201910431308.4A CN201910431308A CN110065955A CN 110065955 A CN110065955 A CN 110065955A CN 201910431308 A CN201910431308 A CN 201910431308A CN 110065955 A CN110065955 A CN 110065955A
- Authority
- CN
- China
- Prior art keywords
- shell
- ammonia
- generating device
- inlet pipe
- air inlet
- 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.)
- Granted
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 239000007789 gas Substances 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 40
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003546 flue gas Substances 0.000 claims abstract description 34
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 10
- 239000004202 carbamide Substances 0.000 abstract description 10
- 238000000889 atomisation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 12
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 12
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 12
- 239000001099 ammonium carbonate Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910001868 water Inorganic materials 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/026—Preparation of ammonia from inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to ammonia preparation technical fields, specifically provide a kind of ammonia gas generating device, it is intended to which the ammonia gas generating device high temperature flue gas for solving existing flue gas denitrification system is mixed with the urea liquid after atomization to be not enough, the low problem of ammonia production.For this purpose, it is columned shell that ammonia gas generating device of the invention, which includes inner cavity, inlet tube, air inlet pipe, liquid outlet and gas outlet are provided on shell；Inlet tube is set to the top center position of shell and extends downwardly, and inlet tube is provided with the spraying component for spraying ammonia stoste processed into shell；Air inlet pipe is for conveying high-temperature flue gas into shell；Liquid outlet and gas outlet are all set in the bottom of shell, are respectively used to that the product liquid and gaseous product of ammonia reaction processed is discharged, are provided with the helical form air guide extended from the top down so that high-temperature gas forms swirling eddy in shell on the inner wall of shell.Swirling eddy is sufficiently mixed atomized liquid with high-temperature gas, improves the yield of ammonia.
Description
Technical field
The present invention relates to ammonia preparation technical fields, specifically provide a kind of ammonia gas generating device.
Background technique
Contain a large amount of NOx in the flue gas of the discharges such as thermal power plant, smeltery, Industrial Boiler, is to generate acid in atmosphere
The major pollutants of rain.Currently, most mature gas denitrifying technology is selective-catalytic-reduction denitrified (SCR), principle is benefit
The NOx in flue gas is reduced into N under the effect of the catalyst with ammonia2And H2O.In general, in flue gas denitrification system, concentrated ammonia liquor
It is added into ammonia gas generating device heating and generates ammonia, the ammonia of generation is being mixed with flue gas to restore the NOx in flue gas.
But, concentrated ammonia liquor prepares raw material transport inconvenience as ammonia, and there are biggish security risks.
In consideration of it, urea granules and water are mixed to form urea liquid, urea liquid by improved flue gas denitrification system
It is sprayed by spray equipment in the reaction chamber of ammonia gas generating device, while high-temperature flue gas is passed into the reaction chamber of ammonia gas generating device
Interior, the urea liquid after atomization is mixed with high-temperature flue gas, and the heat of high-temperature flue gas makes the urea in urea liquid decompose generation ammonia
The mixed gas of gas, ammonia and flue gas is discharged and is passed through in denitration reaction device after dehumidifying, under the effect of the catalyst ammonia
Reduction reaction occurs for the NOx in gas and flue gas and the NOx in removing smoke.But, high-temperature flue gas is usually directly to send out from ammonia
The bottom of generating apparatus is passed through in ammonia gas generating device, and the top of ammonia gas generating device is arranged in gas outlet, and high-temperature flue gas enters shell
It flows after body and is finally flowed out from gas outlet directly up, the urea liquid undercompounding after flue gas and atomization, ammonia production
It is low.
Correspondingly, this field needs a kind of new technical solution to solve the above problems.
Summary of the invention
In order to solve the above problem in the prior art, in order to solve the ammonia gas generating device of existing flue gas denitrification system
High temperature flue gas is mixed with the urea liquid after atomization and is not enough, and the low problem of ammonia production, the present invention provides a kind of ammonia
Gas generating device, the ammonia gas generating device include that inner cavity is columned shell, are provided with inlet tube, air inlet on the shell
Pipe, liquid outlet and gas outlet；The inlet tube is set to the top center position of the shell, and the inlet tube is located at described
The intracorporal part of shell is provided with spraying component, and the spraying component is used to spray ammonia stoste processed into the shell；The air inlet
Pipe is for conveying high-temperature flue gas into the shell；The liquid outlet and the gas outlet are all set in the bottom of the shell,
It is respectively used to that the product liquid and gaseous product of ammonia reaction processed is discharged；It is provided on the inner wall of the shell and to extend from the top down
Helical form air guide.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the side of the shell, institute is arranged in the air inlet pipe
The upper end for stating helical form air guide is connect with the outlet end of the air inlet pipe.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the helical form air guide include in the width direction from
The inner wall of the shell towards the shell axis extend spiral deflector, the screw pitch of the spiral deflector from top to bottom by
It is decrescence small.
In the optimal technical scheme of above-mentioned ammonia gas generating device, between the spiral deflector and the axis of the shell
Angle in the range of 70-90 degree.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the inner wall phase of the inner wall of the air inlet pipe and the shell
It cuts.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the axis phase of the axis of the air inlet pipe and the shell
It is mutually vertical.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the internal diameter of the air inlet pipe is less than the inner cavity of the shell
Radius.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the axis of the axis of the air inlet pipe and the inlet tube
Also it is mutually perpendicular to.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the air inlet pipe is disposed in proximity to the case top
Position.
In the optimal technical scheme of above-mentioned ammonia gas generating device, the air inlet pipe is disposed in proximity to the top of the shell
Position and its outlet end tilt down.
It will be appreciated to those of skill in the art that in the inventive solutions, ammonia gas generating device includes inner cavity
For columned shell, it is provided with inlet tube, air inlet pipe, liquid outlet and gas outlet on shell, shell is arranged in inlet tube
It top center position and extends downwardly, inlet tube is located at the intracorporal part of shell and is provided with spraying component, and spraying component is used for shell
Sprinkling ammonia stoste processed in vivo；Air inlet pipe is for conveying high-temperature flue gas into shell；Liquid outlet and gas outlet are all set in shell
Bottom is respectively used to that the product liquid and gaseous product of ammonia reaction processed is discharged；It is provided on the inner wall of shell and extends from the top down
Helical form air guide form swirling eddy in the shell so as to high-temperature gas.Setting in this way, air inlet pipe are logical
The high-temperature flue gas entered in the inner cavity of shell flows downward, and high-temperature gas flows through helical form air guide, in helical form air guide
Under the action of form swirling eddy, swirling eddy rotational flow from the top down.The system of being passed through is set in the inlet tube of case top
Ammonia stoste (such as ammonium bicarbonate solution), ammonia stoste processed form atomized liquid through the spraying component on inlet tube and are sprayed in the middle part of the inner cavity of shell
(i.e. in the region of shell axis).Portion settles downwards atomized liquid in the lumen under gravity, and high-temperature gas is formed
Swirling eddy inner cavity surrounding downward spiral flow, and flow velocity be greater than inner cavity in the middle part of gas flow rate, make swirling eddy
Internal and neighbouring air pressure is less than the air pressure in the middle part of inner cavity, thus atomized liquid quilt during sedimentation under the action of draught head
It sucks in swirling eddy, forms turbulent flow inside swirling eddy, atomized liquid is mixed with high-temperature gas, come into full contact with high-temperature gas
Atomized liquid absorb high-temperature gas heat and so that ammonium bicarbonate is decomposed and generate ammonia, improve the utilization rate of high-temperature gas heat with
And in atomized liquid reactant (ammonium bicarbonate) resolution ratio, and then improve the yield of ammonia.
Detailed description of the invention
The preferred embodiment of the present invention described with reference to the accompanying drawings, in attached drawing:
Fig. 1 is the structural schematic diagram one of the ammonia gas generating device of an embodiment of the present invention；
Fig. 2 is the front view of the ammonia gas generating device of an embodiment of the present invention；
Fig. 3 be in Fig. 2 along the sectional view of A-A；
Fig. 4 is the semi-cutaway of the ammonia gas generating device of an embodiment of the present invention；
Fig. 5 is the enlarged drawing of part B in Fig. 4.
Reference signs list:
11, upper housing；12, lower case；13, section is bored；21, first flange；22, second flange；23, third flange；24,
Four flanges；31, inlet tube；32, air inlet pipe；33, gas outlet；34, liquid outlet；4, atomizer；5, spiral deflector.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.Although for example,
The shell of ammonia gas generating device of the invention includes two different upper housings of diameter and lower case, but those skilled in the art
It can according to need and make adjustment to it, to adapt to specific application, such as shell of ammonia gas generating device of the invention
Can the identical upper housing of two sections of diameters and lower case, being also possible to integral type inner cavity is columned shell etc..Obviously, it adjusts
Technical solution afterwards will fall into protection scope of the present invention.
It should be noted that in the description of the present invention, the instruction such as term "left", "right", "upper", "lower", "inner", "outside"
Direction or the term of positional relationship be direction based on the figure or positional relationship, this is intended merely to facilitate description, and
It is not that indication or suggestion described device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third ", " the 4th " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance.
In addition, it should also be noted that, in the description of the present invention unless specifically defined or limited otherwise, term " is set
Set ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or integral type connection；It can
To be to be connected directly, the connection inside two elements can also can also be indirectly connected through an intermediary.For this field
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In addition, in order to better illustrate the present invention, numerous details is given in specific embodiment below.
It will be appreciated by those skilled in the art that without certain details, the present invention equally be can be implemented.In some embodiments, right
It is not described in detail in method well known to those skilled in the art, means, element and circuit, in order to highlight this master of the invention
Purport.
It is the structural schematic diagram one of the ammonia gas generating device of an embodiment of the present invention referring to figs. 1 to Fig. 5, Fig. 1；Fig. 2 is
The front view of the ammonia gas generating device of an embodiment of the present invention；Fig. 3 be in Fig. 2 along the sectional view of A-A；Fig. 4 is the present invention one
The semi-cutaway of the ammonia gas generating device of kind embodiment；Fig. 5 is the enlarged drawing of part B in Fig. 4.
As shown in Figures 1 to 5 and according to orientation shown in Fig. 2, in a kind of specific embodiment, ammonia gas generating device
Shell includes that inner cavity setting up and down is the different upper housing 11 and lower case 12 of columned internal diameter, and the lower end of upper housing 11 is set
It is equipped with the cone section 13 of transition connection, the lower end of cone section 13 is provided with first flange 21, and the upper end of lower case 2 is provided with the second method
Orchid 22,11 lower part of upper housing and the osculum end of cone section 13 are welded and fixed, and the big opening end of cone section 13 is welded and fixed with first flange 21,
The upper end of lower case 12 is welded and fixed with second flange 22, and first flange 21 and second flange 22 are docking together and pass through bolt
(not shown) is fixed.The top center position of upper shell 11 is provided with inlet tube 31, and inlet tube 31 is from third flange 23
Middle part passes through, and the top of upper shell 11 is welded with the 4th flange 24, third flange 23 and the 4th flange 24 and passes through bolt (figure
In be not shown) be fixedly connected, be overlapped inlet tube 31 and the axis of upper housing 11 and lower case 12.Inlet tube 31 is located at lower case
Part in 12 is provided with the spraying component for spraying ammonium bicarbonate solution (ammonia stoste i.e. processed) into shell, as along inlet tube 31
Axis direction is alternately distributed 5 atomizers 4 in 31 two sides of inlet tube.The side of upper housing 11 is provided with for into shell
Convey the air inlet pipe 32 of high-temperature flue gas.Preferably, position of the side close to top of upper housing 11 is arranged in air inlet pipe 32.Lower casing
The bottom of body 12 is provided with the gas outlet 33 being radially arranged and the liquid outlet being arranged downward 34, and gas outlet 33 is for being discharged
The product liquid that ammonia processed reaction generates in shell, gas outlet 33 are used to be discharged the gaseous product that ammonia reaction processed in shell generates.?
Helical form air guide is provided in upper housing 11, the inner wall of helical form air guide fitting upper housing 11 extends from the top down.
Specifically, helical form air guide is spiral deflector 5.
Ammonium bicarbonate solution is inputted by inlet tube 31 and forms atomized liquid after the ejection of atomizer 4, and atomized liquid is sprayed
Middle part (close to the region of its axis i.e. in upper housing 11) and sedimentation downwards under gravity to upper housing 11.Firepower hair
The high-temperature flue gas of the discharges such as power plant, smeltery, Industrial Boiler is passed through upper housing 11 by air inlet pipe 32.High-temperature flue gas is in upper housing
During being flowed from top to bottom in 11 with flow through spiral deflector 5 and meet, under the guide functions of spiral deflector 5, air-flow
Flow direction be changed and form the swirling eddy that flows downward of rotation.Swirling eddy flow velocity is greater than central region (shell in shell
The region of its interior close axis) air velocity, make inside swirling eddy and neighbouring air pressure be less than the air pressure of housing central section.Gas
The presence of pressure difference spreads atomized liquid quickly into the intracorporal swirling eddy of shell, and there are turbulent flows in swirling eddy, to make mist
Change liquid uniformly to mix with high-temperature gas.Atomized liquid absorb high-temperature flue gas in heat, ammonium bicarbonate therein thermally decomposed to generate ammonia,
Water and carbon dioxide, with the consumption of heat, the steam of generation and remaining atomized liquid condense into drop and fall and be gathered in down
The bottom of shell 12 is finally discharged from liquid outlet 34, and the gaseous mixture of ammonia, carbon dioxide and flue gas is from the bottom of lower case 12
Gas outlet 33 is discharged.
By the way that helical form air guide is arranged in shell, it can make to enter the intracorporal high-temperature gas of shell in helical form water conservancy diversion
Under the action of component, spiral air flow is formed inside housings.Spiral air flow makes to form draught head in shell, to make housing central section
Atomized liquid diffuse in swirling eddy, be sufficiently mixed atomized liquid with high-temperature gas, atomized liquid made to make full use of high-temperature flue gas
Heat and promote the decomposition of wherein ammonium bicarbonate, improve the yield of ammonia.The middle position of case top is arranged in inlet tube 31, and
The axis of inlet tube 31 is vertical with the axis of air inlet pipe 32, atomized liquid can be made uniformly to be sprayed to housing central section, to make to be atomized
Liquid equably diffuses in the swirling eddy of surrounding, further increases atomized liquid and high-temperature gas mixability, promotes ammonia processed
The decomposition of ammonium bicarbonate in stoste, improves the yield of ammonia.Ammonium bicarbonate solution is used as ammonia solution processed, since ammonium bicarbonate pyrolysis temperature is lower,
When mixing with mutually synthermal high-temperature flue gas, urea liquid is compared, resolution ratio is high, can further increase the yield of ammonia.
It will be appreciated by persons skilled in the art that the shell of ammonia gas generating device includes two different upper housings of diameter
It is only a kind of illustrative description with lower case, those skilled in the art, which can according to need, makes adjustment to it, to adapt to
Specific application, as ammonia gas generating device shell can the identical upper housing of two sections of diameters and lower case, be also possible to
Integral type inner cavity is columned shell etc..It is only a kind of illustrative description, this field skill that the quantity of atomizer 4, which is 5,
Art personnel, which can according to need, makes adjustment to it, to adapt to specific application, as the quantity of atomizer 4 can be
4,6,7 or more etc., and the nozzle diameter of atomizer 4 can be adjusted according to actual needs, such as mist
The nozzle diameter for changing spray head 4 can be 0.1mm, 0.3mm, 0.5mm or other are suitably sized etc..In addition, inlet tube 31 is set
It is set to that be overlapped with the axis of upper housing 11 and lower case 12 be only a kind of preferred embodiment, those skilled in the art can root
According to needing to make adjustment to it, to adapt to specific application, it is located at case top as inlet tube 31 also can be set into
Middle position simultaneously forms 5 °, 10 ° angles etc. with the axis of shell.The side of upper housing 11 is arranged in close to top in air inlet pipe 32
Position is only a kind of illustrative description, and those skilled in the art, which can according to need, makes adjustment to it, specific to adapt to
Application and can be set in lower casing if the position in the side of upper housing 11 close to bottom can be set in air inlet pipe 32
The side of body 12 is close to the position at top, as long as high-temperature gas downward spiral can be made to flow to gas outlet 33.In addition, spiral
Shape air guide is that spiral deflector 5 is only a kind of specific embodiment, and those skilled in the art can according to need to it
It makes adjustment, to adapt to specific application, such as spiral stream guidance component is arranged to helix tube, helicla flute.
Preferably, the upper end of spiral deflector 5 is connect with the outlet end of air inlet pipe 32.High-temperature gas goes out from air inlet pipe 32
Mouth end flows directly into spiral deflector 5 after flowing into upper housing 11, and downward spiral flows under the action of high-temperature gas spiral deflector,
The quick formation for promoting swirling eddy avoids a large amount of of the excessive impact noise airflow kinetic energy of high-temperature gas and inner walls
Loss c correspondingly increases the flow velocity of the swirling eddy of high-temperature gas formation, improves the intracorporal draught head of shell, promote atomization
The diffusion of liquid, while stronger turbulent flow is formed in swirling eddy, promote the mixing of atomized liquid and high-temperature gas, Jin Erti
The heat utilization ratio of high high-temperature flue gas and the yield of ammonia.
Preferably, the screw pitch of helical form deflector 5 is gradually reduced from the top down.The air-flow that high-temperature gas is formed flows through spiral
During deflector 5, the channel of airflow narrows from the width, and air inflow remains unchanged, so that the speed of air-flow be promoted to add
Fastly, the flow velocity for improving swirling eddy, increases draught head, to improve the diffusion velocity of atomized liquid, promote atomized liquid with
The mixing of high-temperature gas Quick uniform, extends contact time, improves the yield of ammonia.
Preferably, as shown in figure 5, extending from the inner wall of upper housing 11 to the axis of upper housing 11 in spiral deflector 5
Direction (i.e. the width direction of spiral deflector 5), the angle α between spiral deflector 5 and the axis of upper housing 11 are arrived at 70 °
In the range of 90 °.Preferably, angle α is 70 °.Setting in this way, the mistake that high temperature gas flow can be made to flow in downward spiral
The mobile a certain distance of Cheng Zhongxiang inlet tube 31 utilizes rotary pneumatic so that a large amount of atomized liquids be made directly to be sprayed in swirling eddy
Turbulent closure scheme atomized liquid and high-temperature gas in stream, and partly atomized liquid is diffused in swirling eddy by draught head, makes to be atomized
Liquid and high-temperature gas mixing are more uniform.Preferably, multiple micropores are formed on spiral deflector 5, high temperature gas flow is led along spiral
During 5 downward spiral of flowing plate flows, portion gas can be passed through from the micropore on spiral deflector 5, will be in swirling eddy
Mixed atomized liquid is further broken up, and smaller atomized drop is formed, and mixes atomized liquid with high-temperature flue gas more uniform, improves
The contact area of atomized liquid and high-temperature gas further promotes the decomposition of ammonium bicarbonate in ammonium bicarbonate solution, improves the yield of ammonia.
It will be appreciated by persons skilled in the art that the angle α between spiral deflector 5 and the axis of upper housing 11 is
70 ° are only a kind of specific embodiments, and those skilled in the art, which can according to need, makes adjustment to it, as angle α can be with
It is 75 °, 80 °, 83 ° etc..In addition, it is a kind of preferred embodiment that the screw pitch of helical form deflector 5 is gradually reduced from the top down,
Those skilled in the art, which can according to need, is arranged to uniform pitch for helical form deflector 5.In addition, the upper end of spiral deflector 5
Connecting with the outlet end of air inlet pipe 32 is also only a kind of preferred embodiment, and those skilled in the art can according to need spiral shell
Rotation deflector 5 is arranged to the upper end and does not connect with the outlet end of air inlet pipe 32.
With continued reference to Fig. 1 to Fig. 3, it is preferable that the inner wall of air inlet pipe 32 and the inner wall of upper housing 11 are tangent, and air inlet pipe
32 axis is vertical with the axis of upper housing 11.That is, the axis of air inlet pipe 32 is proper at a distance from the axis of upper housing 11
Equal to the internal diameter of internal diameter (i.e. the diameter of the inner cavity of upper housing 11) and the air inlet pipe 32 of upper housing 11, (32 inner wall of air inlet pipe is formed well
Cylindrical surface diameter) difference half, and the axis of air inlet pipe 32 is vertical with the axis of upper housing 11.Preferably, into
The internal diameter of tracheae 32 is less than the radius of the inner cavity of upper housing 11.
Orientation shown in Fig. 3, high-temperature flue gas form straight air stream in air inlet pipe 32, straight air stream along air inlet pipe 32 from
The right side flows leftward into upper housing 11, after the outflow of the outlet end of air inlet pipe 32, Cylinder Surface of the straight air stream in upper shell 11
It is forced to change flow direction and be bonded the inner wall of upper housing 11 along rotational flow counterclockwise under effect.
Under the upper end of spiral deflector 5 and the unconnected situation in outlet end of air inlet pipe 32, pass through setting for air inlet pipe 32
Setting makes high-temperature gas be initially formed swirling eddy under the action of 11 inner wall of upper housing, reduces the kinetic energy rejection of air-flow, spiral air flow
Helical flow and spiral deflector 5 is flowed through from the top down, to further improve the stream of spiral air flow to spiral air flow plasticity
Speed, and then improve the mixing of atomized liquid and high-temperature gas.It is connect in the upper end of spiral deflector 5 with the outlet end of air inlet pipe 32
In the case of, since the inner wall of the inner wall and upper housing 11 of air inlet pipe 32 is tangent, and the axis of air inlet pipe 32 and upper housing 11
Axis is vertical, so that high-temperature gas be made directly to flow through the logical of the formation of spiral deflector 5 along the tangential direction of upper housing 11 here
In road, the loss of airflow kinetic energy is reduced, high temperature gas flow is made to form quick swirling eddy, is formed in swirling eddy stronger
Turbulent flow, promote atomized liquid and high-temperature gas mixing.The internal diameter of air inlet pipe 32 is less than the radius of the inner cavity of upper housing 11, can
Enter high-temperature gas in upper housing 11 from the axis side of upper housing 11 along air inlet pipe 32, and then under the action of curved inner wall
The high-temperature gas entered is set to both participate in the formation of swirling eddy.
In a kind of alternative embodiment, the difference with above-described embodiment is: the axis and upper housing of air inlet pipe 32
11 axis out of plumb, air inlet pipe 32 are arranged to outlet end and tilt down setting.Setting in this way, high-temperature flue gas is in air inlet
Form straight air stream in pipe 32 and flow to upper housing 11, straight air stream flowed out from the outlet end of air inlet pipe 32 and in upper housing 11
Wall fitting, diagonally downward, the speed of straight air stream can be decomposed into the level in horizontal plane point speed to the directional velocity of straight air stream
Degree and vertical component velocity along the vertical direction.A tangential direction of the horizontal component velocity along upper housing 11 at this, promotes
Air-flow is bonded the inner wall rotational flow of upper housing 11, and vertical component velocity promotes air-flow to flow downward, to promote to rotate downwards
The formation of spiral air flow.
Through above description as can be seen that in ammonia gas generating device of the invention, ammonia gas generating device includes that inner cavity is
Columned shell is equipped with inlet tube, air inlet pipe, liquid outlet and gas outlet on shell, and the top of shell is arranged in inlet
Middle position and extend straight down, inlet tube is located at the intracorporal part of shell and is provided with spraying component, and spraying component is used for shell
Sprinkling ammonia stoste processed in vivo, for air inlet pipe for conveying high-temperature flue gas into shell, liquid outlet and gas outlet are all set in shell
Bottom is respectively used to that the product liquid and gaseous product of ammonia reaction processed is discharged, is provided on the inner wall of shell and extends from the top down
Helical form air guide form swirling eddy in the shell so as to high-temperature gas.Pass through setting for helical form air guide
It sets, high-temperature gas is made to form swirling eddy in shell, form draught head with the region where the atomized liquid of penetrating housing central section,
Atomized liquid is promoted to spread into air-flow, thus promote the mixing of atomized liquid and high-temperature gas under the turbulent flow in air-flow, into
And improve the yield of ammonia.The side of shell, the upper end of helical form air guide and the outlet of air inlet pipe is arranged in air inlet pipe
End connection, flows directly into helical form air guide, reduces the kinetic energy rejection of air-flow, relatively mention after so that high-temperature gas is entered shell
The high flow velocity of swirling eddy, to further increase the mixing of atomized liquid and high-temperature gas.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. a kind of ammonia gas generating device, which is characterized in that the ammonia gas generating device includes that inner cavity is columned shell, described
Inlet tube, air inlet pipe, liquid outlet and gas outlet are provided on shell；
The inlet tube is set to the top center position of the shell and extends downwardly, and the inlet tube is located in the shell
Part be provided with spraying component, the spraying component is used to spray ammonia stoste processed into the shell；
The air inlet pipe is for conveying high-temperature flue gas into the shell；
The liquid outlet and the gas outlet are all set in the bottom of the shell, and the liquid for being respectively used to be discharged ammonia reaction processed produces
Object and gaseous product；
The helical form air guide extended from the top down is provided on the inner wall of the shell so that high-temperature gas is in the shell
Interior formation swirling eddy.
2. ammonia gas generating device according to claim 1, which is characterized in that the side of the shell is arranged in the air inlet pipe
The upper end in portion, the helical form air guide is connect with the outlet end of the air inlet pipe.
3. ammonia gas generating device according to claim 2, which is characterized in that the helical form air guide includes along width
The spiral deflector that axis of the direction from the inner wall of the shell towards the shell extends, the screw pitch of the spiral deflector is from upper
It is gradually reduced under.
4. ammonia gas generating device according to claim 3, which is characterized in that the axis of the spiral deflector and the shell
Angle between line is in the range of 70-90 degree.
5. according to the described in any item ammonia gas generating devices of claim 2 to 4, which is characterized in that the inner wall of the air inlet pipe with
The inner wall of the shell is tangent.
6. ammonia gas generating device according to claim 5, which is characterized in that the axis of the air inlet pipe and the shell
Axis is mutually perpendicular to.
7. ammonia gas generating device according to claim 6, which is characterized in that the internal diameter of the air inlet pipe is less than the shell
Inner cavity radius.
8. ammonia gas generating device according to claim 7, which is characterized in that the axis of the air inlet pipe and the inlet tube
Axis be also mutually perpendicular to.
9. ammonia gas generating device according to claim 8, which is characterized in that the air inlet pipe is disposed in proximity to the shell
The position at top.
10. ammonia gas generating device according to claim 5, which is characterized in that the air inlet pipe is disposed in proximity to the shell
The position at the top of body and its outlet end tilts down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431308.4A CN110065955B (en) | 2019-05-22 | 2019-05-22 | Ammonia gas generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431308.4A CN110065955B (en) | 2019-05-22 | 2019-05-22 | Ammonia gas generating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110065955A true CN110065955A (en) | 2019-07-30 |
| CN110065955B CN110065955B (en) | 2023-12-08 |
Family
ID=67371285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910431308.4A Active CN110065955B (en) | 2019-05-22 | 2019-05-22 | Ammonia gas generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110065955B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159231A (en) * | 2013-02-06 | 2013-06-19 | 中国大唐集团环境技术有限公司 | Device for guiding air flow on urea pyrolysis reactor |
| CN203200034U (en) * | 2013-04-19 | 2013-09-18 | 中国大唐集团环境技术有限公司 | Volute-gas-inlet spiral-flow type urea-pyrolysis ammonia preparing device |
| CN104003416A (en) * | 2013-04-19 | 2014-08-27 | 中国大唐集团环境技术有限公司 | Volute-air-inlet spiral-flow type device and method for preparing ammonia by urea pyrolysis |
| CN104016374A (en) * | 2014-04-29 | 2014-09-03 | 大唐科技产业集团有限公司 | Novel urea pyrolysis furnace for denitrifying flue gas |
| CN205500799U (en) * | 2016-03-04 | 2016-08-24 | 上海电气电站环保工程有限公司 | Urea pyrolysis device |
-
2019
- 2019-05-22 CN CN201910431308.4A patent/CN110065955B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159231A (en) * | 2013-02-06 | 2013-06-19 | 中国大唐集团环境技术有限公司 | Device for guiding air flow on urea pyrolysis reactor |
| CN203200034U (en) * | 2013-04-19 | 2013-09-18 | 中国大唐集团环境技术有限公司 | Volute-gas-inlet spiral-flow type urea-pyrolysis ammonia preparing device |
| CN104003416A (en) * | 2013-04-19 | 2014-08-27 | 中国大唐集团环境技术有限公司 | Volute-air-inlet spiral-flow type device and method for preparing ammonia by urea pyrolysis |
| CN104016374A (en) * | 2014-04-29 | 2014-09-03 | 大唐科技产业集团有限公司 | Novel urea pyrolysis furnace for denitrifying flue gas |
| CN205500799U (en) * | 2016-03-04 | 2016-08-24 | 上海电气电站环保工程有限公司 | Urea pyrolysis device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110065955B (en) | 2023-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3554677B1 (en) | Multi-stage mixer | |
| CN102671533B (en) | Low-air consumption effervescent atomizer applicable to SNCR (selective non-catalytic reduction) denitrification technology | |
| CN206267925U (en) | Exhaust gas post-treatment device | |
| WO2016146015A1 (en) | Mixing tube and exhaust gas treatment device thereof | |
| CN210410104U (en) | Cyclone mixed-action spray tower for organic waste gas treatment | |
| CN204017659U (en) | The ammonia water spraying device of cement decomposing furnace SNCR method denitrating system | |
| CN210438424U (en) | Ammonia gas generating device | |
| CN201375893Y (en) | Circulating fluidized bed gas cyclone device | |
| CN208711397U (en) | Pipe-line mixer and refuse burning system suitable for denitrating flue gas | |
| CN209663542U (en) | A kind of denitration nozzle | |
| CN204768208U (en) | Flue gas to chain boiler carries out SOx/NOx control integration system | |
| CN216295754U (en) | Spray gun and spraying system for flue gas denitration | |
| CN210438423U (en) | Ammonia gas generating device | |
| CN110065955A (en) | Ammonia gas generating device | |
| CN110065954A (en) | Ammonia gas generating device | |
| CN105983311A (en) | Desulfurization and denitrification integrated system for flue gas of chain-grate boiler | |
| CN106422600A (en) | Condensing water film deduster | |
| RU2665405C1 (en) | Centrifugal gas scrubber | |
| CN206391868U (en) | A kind of SCR flue gas denitrification systems mixing ammonia-gas spraying device | |
| CN214717608U (en) | Spray gun mixing arrangement with secondary atomizing mechanism | |
| CN209576252U (en) | A kind of denitration spray gun | |
| CN105020730B (en) | A kind of gas fired-boiler environmental-protection energy-saving device | |
| CN210674808U (en) | Nitrogen oxide emission reduction smoke tube and gas water heating equipment | |
| CN104003417A (en) | Reverse-flow device and method for preparing ammonia by urea pyrolysis | |
| CN103172085A (en) | Air flow guiding method for urea pyrolytic reaction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |