CN208436821U - Weak cyclone stagnation flame nano materials system - Google Patents
Weak cyclone stagnation flame nano materials system Download PDFInfo
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- CN208436821U CN208436821U CN201820413176.3U CN201820413176U CN208436821U CN 208436821 U CN208436821 U CN 208436821U CN 201820413176 U CN201820413176 U CN 201820413176U CN 208436821 U CN208436821 U CN 208436821U
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Abstract
The utility model belongs to nano material synthetic technology, specifically a kind of Weak cyclone stagnation flame nano materials system that flame nano materials are carried out using gas burner.The utility model includes gas cylinder, mixer, predecessor steam generator, heat preservation adhesive layer, Weak cyclone stagnation flame synthesizer, steam jet, stagnation disk, servo motor.In the present invention, two-way is divided to be passed through gas burner fuel gas, oxygen, the premixed gas of distribution composition and predecessor steam, it premixes gas and forms premix cyclone under flight effect, predecessor steam is ejected by steam jet by central tube, it is tentatively mixed in premix cyclone, premix gas forms stable weak eddy flow field in combustion chamber exit, predecessor steam is further uniformly dispersed, after suitable nozzle under the action of stagnation disk, nano particle is generated in Weak cyclone stagnation flame.The utility model structure is simple and convenient to operate, wide adaptation range, is easy to industrialize amplification.
Description
Technical field
The utility model belongs to nano material synthesis technical field, and in particular to a kind of utilization is capable of forming Weak cyclone stagnation fire
The gas burner of flame carries out the method and system of flame nano materials.
Background technique
Nano material refers to that at least one dimension is in nano-scale (0.1-100nm) or by their conducts in three dimensions
The material that basic unit is constituted, due to its property, the concern by people's maximal point in recent years.Preparation method of nano material
Have very much, but there are mainly two types of the methods industrially applied, wet-chemical the preparation method and flame synthesis.Wherein wet chemical is standby
Method long preparation period, high operation requirements, material purity are insufficient, production capacity is low.And flame synthesis has production efficiency
Height, simple process, synthetic purity is high, is easy to the advantages that industry amplification at short preparation period, but there is also deficiencies, such as generate
Nano particle easy-sintering, grain diameter it is excessive.
Summary of the invention
The purpose of the utility model is to provide a kind of Weak cyclone stagnation flame nano materials systems, to synthesize compared with small particle
Nano particle, and avoid the occurrence of the nanoparticles sinter problem of generation.
The utility model is achieved through the following technical solutions, and the utility model includes gas circuit subsystem, material conjunction
At subsystem, material collection subsystem, the gas circuit subsystem include fuel gas cylinder, oxygen gas cylinder, with gas bottle, mixer,
Steam pipework, predecessor, predecessor steam generator, mixing tube；During the materials synthesis subsystem includes fixed bracket, is hollow
Heart pipe, central tube, steam jet, flight, steam distributor, partition, combustion chamber, variable-nozzle；The material collects son
System includes stagnation disk, servo motor；In combustion chamber, hollow centre pipe is arranged on fixed bracket fixed rack arrangement, in
Point two sides are provided with the central tube of corresponding number on empty central tube, place a steam jet, flight at each central tube
Be evenly arranged on the lateral wall of hollow centre pipe, baffle arrangement at the top of hollow centre pipe, steam distributor be arranged in every
On plate, variable-nozzle is mounted on combustion chamber bottom, and stagnation disk is arranged in the lower section of variable-nozzle and is connected to one with servo motor
It rises；Fuel gas cylinder, oxygen gas cylinder, the gas exhaust piping with gas bottle link together with the entrance of mixer, mixing tube into
Mouth is connected with the outlet of mixer, and the outlet of mixing tube is arranged in combustion chamber and is located at support bracket fastened top；Predecessor
It is arranged in predecessor steam generator, the import of steam pipework is connected with the outlet of predecessor steam generator, steam pipe
The outlet on road is connected with steam distributor.
It further, in the present invention, is methane or ethylene in fuel gas cylinder, interior with gas bottle is nitrogen.
Further, in the present invention, heat preservation adhesive layer is set outside steam pipework.
Further, in the present invention, the steam generating mode that predecessor steam generator is taken includes electricity
Heating, which generates steam, heating water bath generates steam or reduces vapour pressure generates steam.
Further, in the present invention, variable-nozzle includes two kinds of principal modes: tapering type or pantographic.
Further, in the present invention, stagnation disk material is heat-resisting material, relative to going out for variable-nozzle
Open height is adjustable.
Further, in the present invention, the state of predecessor includes solid-state, liquid, three kinds of gaseous state.
The basic principle of the utility model includes three parts:
1) under the effect of predecessor steam generator, predecessor transformation generates predecessor steam, and in heat preservation adhesive layer effect
Lower maintenance steam condition；It being shunted before entering combustion chamber by steam distributor, per share steam stream connects different steam jets,
Predecessor steam is ejected at different central tubes；
2) three bursts of fuel gas, oxygen, distribution gas circuits form premix gas after mixer, by partition before entering combustion chamber
Premix gas circuit is separated with predecessor steam；After premixing gas and entering combustion chamber, premix gas is formed under the action of flight
Rotation, and tentatively mixed with predecessor steam；Then further develop dispersion in gas cyclone area and forms weak eddy flow field, predecessor
Steam is further evenly dispersed in weak eddy flow field.
3) suitable variable-nozzle is selected, flame speed under the premise of guaranteeing flame stabilization, as far as possible at increasing nozzle
Degree reduces particulate matter Coalescence time in flame；The height between the revolving speed and stagnation disk and variable-nozzle of stagnation disk is adjusted,
To change the temperature gradient of flame at nozzle, change residence time of the particulate matter in flame, to control the particulate matter generated
Partial size；It can be sintered on stagnation disk by changing the revolving speed of stagnation disk to avoid particulate matter simultaneously.
In air-channel system, fuel gas, oxygen, distribution this three tunnels gas circuit need to be passed through combustion again after mixer is pre-mixed
Burn chamber；The steam generating mode that predecessor steam generator is taken include electric heating generate steam, heating water bath generate steam,
It reduces vapour pressure and generates the modes such as steam；When predecessor is gaseous state or liquid, directlys adopt and predecessor steaming is generated with upper type
Vapour, when predecessor is solid-state, first using the organic solvents such as toluene dissolution configuration precursor solution, then by predecessor steam generator
Generate predecessor steam；Need to be arranged heat preservation adhesive layer outside the predecessor steam pipework of generation.
In materials synthesis subsystem, predecessor steam enter combustion chamber before, using partition by premixed gas with before
Object steam is driven to separate；The predecessor steam of generation is before entering combustion chamber, by a steam distributor, if being uniformly divided into
Carried interest steam stream, per share steam stream are connected from different steam jets respectively, and the two sides hollow centre Guan Shangfen be provided with it is corresponding
The central tube of number, each central tube place a steam jet, here eject predecessor steam；Fuel
After the premix gas that gas, oxygen, distribution form enters combustion chamber, premix cyclone, and and forerunner are formed under the action of flight
Object steam tentatively mixes, and then further develops dispersion in gas cyclone area and forms weak eddy flow field, predecessor steam is in weak eddy flow
It is further evenly dispersed in；Suitable variable-nozzle, including two kinds of tapering type or pantographic (Laval formula) are selected, is being protected
Under the premise of demonstrate,proving flame stabilization, the flame speed at nozzle is increased as far as possible, reduces particulate matter Coalescence time in flame, avoids
Grain diameter is excessive.
In material collection subsystem, stagnation disk material is heat-resisting material, the outlet height relative to variable-nozzle
It is adjustable, it is driven and is rotated by servo motor；The height between revolving speed and stagnation disk and variable-nozzle by adjusting stagnation disk
It can change the temperature gradient of flame at nozzle, change residence time of the particulate matter in flame, to control the particulate matter generated
Partial size；The revolving speed for increasing stagnation disk simultaneously can be sintered on stagnation disk to avoid particulate matter.
Compared with prior art, the utility model has the advantages that are as follows: the system is capable of forming stable combustion
Make a fire flame, can take Lean burn combustion mode, substantially make flame temperature relatively low, be conducive to that nanoparticles sinter is avoided to ask
Topic.It is fast to be capable of forming temperature gradient height, speed under the premise of guaranteeing flame stabilization for the variable-nozzle used in the system
Flame, the reduction of outlet flame temperature is made in structure, the small nano particle of partial size is advantageously formed, also can effectively avoid receiving
Rice grain Sintering Problem.The method and and system can be adapted for synthesizing various nano-oxide particles, have grain diameter
Small (caning be controlled in 10nm or so), be evenly distributed, particle dispersion is good, simple process, be easy to industry amplification the advantages that.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is the utility model hollow centre pipe structural schematic diagram；
Fig. 3 is the utility model flight structural schematic diagram；
Fig. 4 is the different types of nozzle schematic diagram of the utility model；
Wherein, 1, fuel gas cylinder, 2, oxygen gas cylinder, 3, match gas bottle, 4, mixer, 5, heat preservation adhesive layer, 6, predecessor,
7, predecessor steam generator, 8, fixed bracket, 9, hollow centre pipe, 10, central tube, 11, steam jet, 12, flight,
13, steam distributor, 14, partition, 15, combustion chamber, 16, variable-nozzle, 17, gas cyclone area, 18, stagnation disk, 19, servo electricity
Machine, 20, mixing tube.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiments of the present invention, the present embodiment is with the utility model technical side
Premised on case, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is not limited to down
The embodiment stated.
Case study on implementation
As shown in Figures 1 to 4, the utility model includes gas circuit subsystem, materials synthesis subsystem, material collection subsystem
System, gas circuit subsystem include fuel gas cylinder 1, oxygen gas cylinder 2, with gas bottle 3, mixer 4, steam pipework 5, predecessor 6, forerunner
Object steam generator 7, mixing tube 20；Materials synthesis subsystem includes fixed bracket 8, hollow centre pipe 9, central tube 10, steams
Vapour nozzle 11, flight 12, steam distributor 13, partition 14, combustion chamber 15, variable-nozzle 16；Material collection subsystem includes
Stagnation disk 18, servo motor 19；Fixed bracket 8 is arranged in combustion chamber 15, and hollow centre pipe 9 is arranged on fixed bracket 8, in
Point two sides are provided with the central tube 10 of corresponding number on empty central tube 9, place a steam jet 11 at each central tube 10,
Flight 12 is evenly arranged on the lateral wall of hollow centre pipe 9, and partition 14 is arranged in the top of hollow centre pipe 9, steam point
Cloth device 13 is arranged on partition 14, and variable-nozzle 16 is mounted on 15 bottom of combustion chamber, and stagnation disk 18 is arranged in variable-nozzle 16
Lower section simultaneously links together with servo motor 19；Fuel gas cylinder 1, oxygen gas cylinder 2, the gas exhaust piping with gas bottle 3 with mix
The entrance of device 4 links together, and the import of mixing tube 20 is connected with the outlet of mixer 4, and the outlet of mixing tube 20 is arranged in
In combustion chamber 15 and it is located at the top for fixing bracket 8；Predecessor 6 is arranged in predecessor steam generator 7, steam pipework 5
Import is connected with the outlet of predecessor steam generator 7, and the outlet of steam pipework 5 is connected with steam distributor 13.
In the present invention, it when predecessor 6 is gaseous state or liquid, is directly generated by predecessor steam generator 7
Predecessor steam；When predecessor 6 is solid-state, first using the organic solvents such as toluene dissolution configuration precursor solution, then by predecessor
Steam generator 7 generates predecessor steam；Fuel gas, oxygen, distribution composition premixed gas and predecessor steam divide two-way into
Enter combustion chamber 15, mixed at both 9 sections of hollow centre pipe and preliminarily form cyclone, then further develops in gas cyclone area 17
Dispersion forms weak eddy flow field, and variable-nozzle 16 is placed behind gas cyclone area 17, the rotation stagnation driven by servo motor (19)
Disk 18 is located at 16 lower section of variable-nozzle, and Weak cyclone stagnation flame, the nanometer of generation are formed between variable-nozzle 16 and stagnation disk 18
Particle is attached on stagnation disk 18.
Fig. 2 is 9 structural schematic diagram of hollow centre pipe, and eight flights 12 divide two sides interval to install, in 12 line of flight
In vertical direction, eight central tubes 10 are opened, wherein placing eight steam jets 8, predecessor steam is injected into pre- here
In mixed cyclone.
Fig. 4 is two kinds of 16 forms of optional nozzle, under the premise of guaranteeing flame stabilization, if the nano particle generated is not easy
Negative throat noz(zle) may be selected in sintering；If the nano particle easy-sintering generated may be selected contraction and enlargement nozzle (Laval nozzle).
Embodiment: synthesis carbon dioxide nano particle
Tetraisopropyl titanate (TIPT) dissolution of crystals is configured into TIPT solution in toluene, is put in predecessor steam generator
TIPT steam is formed in 7, is that steam distributor 13 is flow in the steam pipework 5 for keeping the temperature adhesive layer in outer layer, shunting forms stereotyped writing
TIPT steam stream.
Suitable methane (fuel gas), oxygen, nitrogen (distribution) ratio and flow composition premix gas are selected, by mixer
Burner is flowed into after 4, before entering combustion chamber 15, will be premixed gas circuit using partition 14 and is separated with TIPT gas circuit.
Premix gas flight 12 effect under formed premix cyclone, stereotyped writing TIPT steam stream sprayed at central tube 10 to
It is mixed in premix cyclone, in gas cyclone area 17, further development dispersion forms weak eddy flow field, and TIPT steam is also wherein into one
It walks evenly dispersed.
Under the premise of guaranteeing flame stabilization, contraction and enlargement nozzle 16 is selected, starting servo motor 19 drives stagnation disk 18 to rotate,
Weak cyclone stagnation flame field is formed between nozzle 16 and rotation stagnation disk 18.
Predecessor, which reacts in Weak cyclone stagnation flame field and gathers and form titania nanoparticles and be attached to, to be turned
On stagnation disk 18.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (7)
1. a kind of Weak cyclone stagnation flame nano materials system, which is characterized in that including gas circuit subsystem, materials synthesis subsystem
System, material collection subsystem, the gas circuit subsystem include fuel gas cylinder (1), oxygen gas cylinder (2), with gas bottle (3), mixing
Device (4), steam pipework (5), predecessor (6), predecessor steam generator (7), mixing tube (20)；The materials synthesis subsystem
Including fixed bracket (8), hollow centre pipe (9), central tube (10), steam jet (11), flight (12), steam distributor
(13), partition (14), combustion chamber (15), variable-nozzle (16)；The material collection subsystem includes stagnation disk (18), servo electricity
Machine (19)；Fixed bracket (8) are arranged in combustion chamber (15), and hollow centre pipe (9) is arranged on fixed bracket (8), it is hollow in
Point two sides are provided with the central tube (10) of corresponding number on heart pipe (9), place a steam jet at each central tube (10)
(11), flight (12) is evenly arranged on the lateral wall of hollow centre pipe (9), and partition (14) is arranged in hollow centre pipe (9)
Top, steam distributor (13) is arranged on partition (14), and variable-nozzle (16) is mounted on combustion chamber (15) bottom, stagnation disk
(18) it is arranged in the lower section of variable-nozzle (16) and links together with servo motor (19)；Fuel gas cylinder (1), oxygen gas cylinder
(2), entrance of the gas exhaust piping with mixer (4) with gas bottle (3) links together, the import of mixing tube (20) with mix
The outlet of device (4) is connected, and the outlet of mixing tube (20) is arranged in the top in combustion chamber (15) and being located at fixed bracket (8)；
Predecessor (6) is arranged in predecessor steam generator (7), import and predecessor steam generator (7) of steam pipework (5)
Outlet is connected, and the outlet of steam pipework (5) is connected with steam distributor (13).
2. Weak cyclone stagnation flame nano materials system according to claim 1, it is characterised in that in fuel gas cylinder (1)
For methane or ethylene, interior with gas bottle (3) is nitrogen.
3. Weak cyclone stagnation flame nano materials system according to claim 2, it is characterised in that steam pipework (5) is outside
Setting heat preservation adhesive layer.
4. Weak cyclone stagnation flame nano materials system according to claim 3, which is characterized in that predecessor steam is raw
The steam generating mode that (7) are taken of growing up to be a useful person includes that electric heating generates steam, heating water bath generates steam or it is raw to reduce vapour pressure
At steam.
5. Weak cyclone stagnation flame nano materials system according to claim 4, which is characterized in that variable-nozzle (16)
Including two kinds of principal modes: tapering type or pantographic.
6. Weak cyclone stagnation flame nano materials system according to claim 5, which is characterized in that stagnation disk (18) material
Matter is heat-resisting material, and the outlet height relative to variable-nozzle (16) is adjustable.
7. Weak cyclone stagnation flame nano materials system according to claim 6, which is characterized in that predecessor (6)
State includes solid-state, liquid, three kinds of gaseous state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820413176.3U CN208436821U (en) | 2018-03-26 | 2018-03-26 | Weak cyclone stagnation flame nano materials system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820413176.3U CN208436821U (en) | 2018-03-26 | 2018-03-26 | Weak cyclone stagnation flame nano materials system |
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| Publication Number | Publication Date |
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| CN208436821U true CN208436821U (en) | 2019-01-29 |
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| CN201820413176.3U Active CN208436821U (en) | 2018-03-26 | 2018-03-26 | Weak cyclone stagnation flame nano materials system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902160A (en) * | 2021-01-22 | 2021-06-04 | 华中科技大学 | Gas distribution equipment for synthesizing nano particles by flame |
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2018
- 2018-03-26 CN CN201820413176.3U patent/CN208436821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112902160A (en) * | 2021-01-22 | 2021-06-04 | 华中科技大学 | Gas distribution equipment for synthesizing nano particles by flame |
| CN112902160B (en) * | 2021-01-22 | 2022-03-29 | 华中科技大学 | Gas distribution equipment for synthesizing nano particles by flame |
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