CN205332803U - Material hypervelocity intensification system - Google Patents
Material hypervelocity intensification system Download PDFInfo
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- CN205332803U CN205332803U CN201620088497.1U CN201620088497U CN205332803U CN 205332803 U CN205332803 U CN 205332803U CN 201620088497 U CN201620088497 U CN 201620088497U CN 205332803 U CN205332803 U CN 205332803U
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Abstract
The utility model discloses a material hypervelocity intensification system, it includes reaction unit, air inlet unit, give powder device and flue gas analysis device, reaction unit and high temperature plasma generator sealing connection, air inlet unit carrier gas in to the high temperature plasma generator, the high temperature plasma body that the high temperature plasma generator produced is followed the reaction unit bottom and is sent into reactor, the material granule passes through the stainless steel steel pipe and is radially poured into into by the carrier gas, with highspeed camera and CCD camera record material combustion processes, with thermocouple sign reactor temperature, the flue gas analysis device is used for collecting and detecting material and the gas phase component after the burning. The utility model discloses with plasma as the high temperature heat source, can satisfy the heating of material hypervelocity and heat up, reach the rapid heating up requirement of trades such as coal, electric power, chemical industry and metallurgy, satisfy the rapid heating up requirement of scientific research in -process simultaneously, have simple structure, easy advantage such as operation.
Description
Technical field
This utility model belongs to the quick heating system field of material of the industries such as the energy, agricultural, chemical industry, Ferrous Metallurgy, Aero-Space, environmental protection and experimental science research, more particularly, to a kind of material ultrahigh speed temperature elevation system。
Background technology
Conventional solid fuel mainly includes biomass, coal dust and solid waste, and the burning of the burning of solid especially coal dust, as the most common way of utilization of energy, receives the extensive concern of people。Coal dust Actual combustion process main heat transfer mode in the boiler is radiation and heat convection, its heating rate reaches 10000K/S, unit simulation coal dust firing by experiment, combustion characteristics with studying coal powder, the combustion reaction and pollutant formation mechanism disclosing flame had important directive function, it is possible to provide fundamental basis for proposing New combustion technique。
Prior art gives the following scheme about solid-fuelled experimental combustion device:
Patent CN101038276B discloses a kind of coal powder performance detection method and device thereof, and it adopts constant heating mode, is fixed in burner hearth by coal dust, passes through CO2Appearing and subsiding judges burning initial temperature and burning finishing temperature, uses CO2The change of content judges the coal dust tail-off time, it is achieved that the firing point of coal dust and the mensuration of combustion process。But too low with the actual boiler heating speed 10000K/S of the rate of heat addition of this unit simulation is not inconsistent, the also actual fire box temperature 2000K of used fire box temperature 300-1200 DEG C is low；Adopt CO on the other hand2Gas is also inaccurate as combustion index。
Patent CN104880448A discloses a kind of pulverized coal flame combustion diagnosis assay device, and this device utilizes advection flame to create the flue gas environment similar to boiler, and with the fluorescence signal of PLIF detection coal dust, thus judging catching fire of coal dust。But this device there is problems in that 1) utilize advection flame to produce high-temperature flue gas, the concentration of its smoke carbon dioxide is relatively big, is not inconsistent with actual flue gas, and should control its flue-gas temperature and consider again to control its smoke components, and operation easier is bigger；2) this device adopts PLIF that coal dust is carried out optical measurement, is only able to detect the local firing characteristic of coal dust, and for the firing temperature of coal dust, ignition mechanism (homogeneous or out-phase burning), burning time etc., combustion characteristics can not detect；3) this device adopts penetrating combustor, but and unused any attemperator, be unfavorable for the after-flame of coal dust。
Utility model content
Disadvantages described above or Improvement requirement for prior art, this utility model provides a kind of material ultrahigh speed temperature elevation system, it uses plasma as high temperature heat source, quick heating suitable in fields such as the energy, chemical industry, iron and steel, metallurgy, it is also applied for material and quickly heats scientific research, as quickly heated the fields such as solid fuel gasification combustion, it is particularly well-suited to detect the experimentation of the material combustion characteristics under different plasma atmosphere, differential responses temperature and different heating rate。
For achieving the above object, the utility model proposes a kind of material ultrahigh speed temperature elevation system, it is characterised in that described system include reaction unit, air intake installation, to powder device and flue gas analysis device, wherein:
Described reaction unit includes reactor thermocouple, image unit and plasma generator, described reactor loads in holding furnace, which is provided with watch window, described thermocouple inserts from the top of reactor, described image unit is located at the top of described watch window place and reactor, and described plasma generator and reactor are tightly connected；
Described air intake installation includes mixed gas unit and multiple air supply unit, and each air supply unit is to a kind of gas of described mixed gas unit supply, and passes through effusion meter adjusting gas flow；Being provided with, in described mixed gas unit, the electrical heating elements that gas is heated, it is connected with described plasma generator；
Described including funnel, powder feeding equipment and stainless-steel pipe to powder device, described powder feeding equipment supplies material in funnel, and material carries in carrier gas and lower is delivered in reactor through stainless-steel pipe；
Described flue gas analysis device is connected with the top of described reactor, and it is used for the material after collecting and analyze burning and flue gas。
As it is further preferred that described flue gas analysis device includes the air-introduced machine, dust collection unit, dust-filtering unit and the tail gas treating unit that are sequentially connected, described dust-filtering unit is also connected with flue gas analyzer。
As it is further preferred that described flue gas analyzer is connected with computer by data wire。
As it is further preferred that the powder-feeding amount of described material is 0.01g/min-100g/min, outside described stainless-steel pipe, it is cased with water cold sleeve。
As it is further preferred that described reactor adopts thermostable transparent material to make, itself and described plasma generator adopt seal washer to be tightly connected。
As it is further preferred that described image unit includes high-speed camera and CCD camera, wherein said high-speed camera is located at watch window place, and described CCD camera is located at the top of reactor。
As it is further preferred that described reaction unit is additionally provided with commutator, described commutator embeds in described reactor。
As it is further preferred that described holding furnace includes heating element heater, fixed heat-insulation layer and detachable heat-insulation layer from the inside to the outside successively。
As it is further preferred that the heating-up temperature of described heating element heater is 100K-2000K；The heating rate range of accommodation of described material ultrahigh speed temperature elevation system is 100K/s-100000K/s。
As it is further preferred that described mixed gas unit is connected with described plasma generator by the pipeline added with electrical heating heating tape。
In general, by the contemplated above technical scheme of this utility model compared with prior art, mainly possess following technological merit:
1. in this utility model, with the plasma ultrahigh speed temperature elevation system as high temperature heat source, reactor high temperature gas temperature range of accommodation is wide, and regulates easily, can ensure that gas concentration is constant while regulating temperature；Reactor high temperature gas can adopt the gas of variety classes and different proportion, the high temperature plasma gas ratio that plasma generator produces is adjustable flexibly, can oxygen enrichment characteristic atmosphere, coal gasification atmosphere or the coal liquifaction atmosphere such as simulated air atmosphere, O2/CO2 and O2/H2O, material heating rate adjustable extent is 100K/s-100000K/s。
2. in this utility model, plus detachable heat-insulation layer, fixed heat-insulation layer and heating element heater outside reactor, can effectively ensure that in reactor, plasma gas keeps high temperature, the heat-insulation layer outside reactor adopts detachable, can arbitrarily regulate the position of watch window；Plasma generator is connected with reactor high-temperature resistant seal ring embedded sealed, and junction adopts water-cooled, is completely embedded；Utilize pottery commutator to make high-temperature plasma through later, uniform high temperature gas flow can be produced；
3. in this utility model, material ignition phase and the observation in after-flame stage can be realized by arranging high-speed camera and CCD camera, reactor is in conjunction with high-speed camera, CCD camera and insertion-type thermocouple, can effectively measure flame profile, flame temperature and gaseous component, plasma burner and the coupling of optical diagnostics device, it is possible to study material combustion characteristics under plasma atmosphere and pollutant emission characteristic；Reactor outlet is connected to flue gas analysis device, can effectively measure gaseous component (CO, CO after material burning by dust collection unit and flue gas analyzer2、CH4、SO2、NOX, NO etc.), thus obtaining the burn-off rate of material and the formation characteristic of pollutant。
4. in this utility model, material is injected funnel by injection powder feeding equipment, carries material through carrier gas and enters reactor through stainless-steel pipe, it may be achieved the separately control of flow rate of carrier gas and powder-feeding amount；In general, temperature elevation system applied range of the present utility model, it is applicable not only to the quick heating in the energy, chemical industry, iron and steel, metallurgical class field, is also applied for material and quickly heats scientific research, it is possible to meet the solid-fuelled ultrahigh speed intensification heating such as biomass, coal dust and solid waste。
Accompanying drawing explanation
Fig. 1 is the material ultrahigh speed temperature elevation system structural representation of this utility model embodiment；
Fig. 2 is the structural representation of air intake installation in this utility model；
Fig. 3 is the structural representation in this utility model to powder device；
Fig. 4 is the structural representation of reaction unit in this utility model；
Fig. 5 is the structural representation of flue gas analysis device in this utility model。
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated。Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model。As long as just can be mutually combined additionally, technical characteristic involved in each embodiment of this utility model disclosed below does not constitute conflict each other。
As shown in Figure 1, a kind of material ultrahigh speed temperature elevation system that this utility model embodiment provides, this system mainly includes reaction unit C, air intake installation A, to powder device B and tetra-parts of flue gas analysis device D, wherein, reaction unit C for providing the environment of ultrahigh speed intensification heating for material, the hot environment of enough 1400K is such as provided for material burning, air intake installation A is for providing reacting gas for material burning, to powder device B for the material stable for reactor offer continuous print, flue gas analysis device D is for detecting and analyzing the after-flame situation of material burning and the situation that discharges pollutants。
One by one various piece will be made a more detailed description and illustrate below。
As shown in Figure 4, reaction unit C includes reactor 13, thermocouple 14, image unit and plasma generator 5, and reactor 13 loads in holding furnace, and reactor 13 internal diameter is D, length is L1, thermal insulation furnace body overall length is L, and reactor 13 is provided with watch window 9；Thermocouple 14 inserts from the top of reactor 13, for measuring the central temperature within reactor 13, so that it is guaranteed that the temperature at reactor 13 center is sufficiently high；Image unit is located at watch window 9 place and the top of reactor 13；Plasma generator 5 and reactor 13 are tightly connected, and it is controlled by plasma ECU 4。
Concrete, holding furnace includes heating element heater 12, fixed heat-insulation layer 11 and detachable heat-insulation layer 10 from the inside to the outside successively, for the ease of observing, heating element heater 12, fixed heat-insulation layer 11 and detachable heat-insulation layer 10 position corresponding with watch window 9 is emptied, to expose watch window 9；Described reaction unit C also includes commutator 6, and in commutator 6 insertion reaction device 13, it can regularly pull down cleaning。
Further, in this utility model embodiment, reactor 13 adopts thermostable transparent material to make, it is specially thermostable transparent quartz material, it is cylinder or polyhedron, can work under temperature 1400K for a long time, reactor 13 and plasma generator 5 adopt seal washer to be tightly connected, and are specifically connected with the bottom of reactor 13, and adopt embedded mode to be tightly connected；Detachable heat-insulation layer 10 above watch window 9 can be dismantled, to provide longer observation interval；Commutator 6 is specially pottery commutator, and is detachable, is arranged in reactor 13 from spout 10mm place。The heating-up temperature of heating element heater 12 is 100K-2000K, and its length with fixed heat-insulation layer 11 is L/10-L/2；The size of described watch window is determined according to the window of high-speed camera, and this example window is preferably dimensioned to be 40 × 40mm。
More specifically, image unit includes high-speed camera 25 and CCD camera 18, and wherein high-speed camera 25 is located at watch window 9 place, and backlight is placed on its opposite, CCD camera 18 is located at top or the watch window place of reactor 13, to realize material ignition phase and the observation in after-flame stage。High-speed camera 25, CCD camera 18 are connected with computer 24 each through data wire 27。High-speed camera 25 and CCD camera 18, with the combustion case of the speed record coal dust of 4000fps, are processed by the later stage and obtain its ignition delay time, firing temperature, burning time。
As in figure 2 it is shown, air intake installation A includes mixed gas unit 1 and multiple air supply unit 3, each air supply unit 3 supplies a kind of gas to mixed gas unit 1, and each gas has the effusion meter 2 of its correspondence, enters in mixed gas unit 1 after different flow regulates；Multiple gases is mixed to form mixing gas by mixed gas unit 1, is provided with the electrical heating elements that mixing gas is heated in it, and mixed gas unit 1 is connected with plasma generator 5。
Further, in the present embodiment, air supply unit is specially gas bomb, and gas is H respectively2O、N2、CO2、O2、H2With one or more in Ar, ratio can change flexibly, can simulated air atmosphere, O2/CO2And O2/H2Oxygen enrichment characteristic atmosphere, coal gasification atmosphere or the coal liquifaction atmosphere such as O, the mixing gas that mixed gas unit 1 provides enters high-temperature plasma generator 5 after electrical heating heating tape 26 and ionizes, producing high temperature plasma gas, high temperature plasma gas enters reactor 13 after commutator 6。More specifically, the high-temperature plasma gas atmosphere that ion generator 5 produces can be H2O、N2、CO2、O2Deng one or more, the flow velocity of high-temperature plasma is 1m/s-300m/s, temperature is 300K-5000K, and the adjustable heating rate of temperature elevation system is 100K/s-100000K/s, and mixed gas unit 1 is connected with plasma generator 5 especially by the pipeline added with electrical heating heating tape 26。
In actual mechanical process, select the H in air supply unit 32O air supply unit 3-1, N2Air supply unit 3-2, CO2Air supply unit 3-3, O2Air supply unit 3-4, enter mixed gas unit 1 in varing proportions by respective effusion meter 2-1,2-2,2-3,2-4 to mix, mixing gas enters ionization in plasma generator 5 with the flow of 1.6L/S after being preheating to 473K and produces the high-temperature plasma of 1400K, subsequently into reactor 13。
As shown in Figure 3, funnel 15, powder feeding equipment 16 and stainless-steel pipe 7 is included to powder device B, powder feeding equipment 16 supplies material in funnel 15, material carries in carrier gas and lower is delivered in reactor 13 through stainless-steel pipe 7, stainless-steel pipe 7 and reactor 13 are tightly connected, the concrete side being horizontally inserted reactor 13, to solid fuels such as coal dust, biomass and solid waste in powder device B through radially continuous being injected in reactor 13 of stainless-steel pipe 7。
Further, the material selected in this utility model embodiment is coal dust, powder feeding equipment 16 is injection, and coal dust is injected in funnel 15 by powder feeding equipment 16, and powder-feeding amount is advanced speed to determine by powder feeding equipment, carrier gas is after effusion meter 17, carrying the coal dust in funnel 15 and enter stainless-steel pipe 7, the powder-feeding amount of material is 0.01g/min-100g/min, and powder-feeding amount is adjustable, carrier gas speed is controlled by effusion meter 17, and carrier gas speed and powder-feeding amount in this utility model independently control。Concrete, it being cased with water cold sleeve 8 outside stainless-steel pipe 7, its internal diameter is D/20-D/4, and the length stretching into reactor 13 is D/10-2D/3, and internal diameter is preferably 6mm。
More specifically, carrier gas is specially air, and carrier gas speed is 1.3m/s, and powder-feeding amount is that 0.05g/min. coal dust enters reactor 13 by the stainless-steel pipe 7 of internal diameter 6mm, is then carried up by high temperature plasma gas, and quickly lights；Additionally, funnel 15 is specially glass funnel。
As shown in Figure 5, flue gas analysis device D is connected with the top of reactor 13, for collecting and analyze material after burning and flue gas, described flue gas analysis device D includes the air-introduced machine 19, dust collection unit 20, dust-filtering unit 21 and the tail gas treating unit 22 that are sequentially connected, dust-filtering unit 21 is also connected with flue gas analyzer 23, flue gas analyzer 23 is connected with computer 24 by data wire 27, add flue gas analysis device in reactor head, the burn-off rate of coal dust and the formation characteristic of pollutant can be obtained by dust collection unit 20 and flue gas analyzer 23。
The specific operation process of material ultrahigh speed temperature elevation system of the present utility model will be described in detail below。
First, N2 air supply unit 3-2 in air supply unit 3, O2 air supply unit 3-4, enter mixed gas unit 1 by respective effusion meter 2-2,2-4 with ratio 79:21 to mix, mixing gas enters ionization in plasma generator 5 with the flow of 1.6L/S after being preheating to 473K and produces the high-temperature plasma of 1400K, subsequently into reactor 13；Suction-type thermocouple 14 inserts from top, is used for measuring reactor center temperature。
Secondly, to powder system B with air for carrier gas, carrier gas speed is 1.3m/s, and material is coal dust, and coal dust powder-feeding amount is 0.05g/min, and the stainless-steel pipe 7 that coal dust is carried by internal diameter 6mm by air enters reactor 13。
Again, the coal dust entering reactor is carried up by high temperature plasma gas, and quickly lights burning。
Finally, high-speed camera 25 is with combustion case with the speed record coal dust of 100fps of 4000fps, CCD18, processed by the later stage and obtain its ignition delay time and firing temperature, burning time, obtained the burn-off rate of coal dust and the formation characteristic of pollutant by coal ash collecting device 20 and flue gas analyzer 23。
Material intensification is carried out by material ultrahigh speed temperature elevation system of the present utility model, 100K/s-100000K/s is ranged for for its adjustable heating rate of different types of material particles, have that temperature regulating range is wide, simple in construction, the advantage such as easy to operate, it is applicable not only to the quick heating in the energy, chemical industry, Ferrous Metallurgy, environmental protection, agricultural and Aero-Space class field, it is also applied for material and quickly heats scientific research, it is possible to meet the solid-fuelled ultrahigh speed intensification heating such as biomass, coal dust and solid waste。
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model。
Claims (10)
1. a material ultrahigh speed temperature elevation system, it is characterised in that described system include reaction unit (C), air intake installation (A), to powder device (B) and flue gas analysis device (D), wherein:
Described reaction unit (C) includes reactor (13), thermocouple (14), image unit and plasma generator (5), described reactor (13) loads in holding furnace, which is provided with watch window (9), described thermocouple (14) inserts from the top of reactor (13), described image unit is located at described watch window (9) place and the top of reactor (13), and described plasma generator (5) and reactor (13) are tightly connected；
Described air intake installation (A) includes mixed gas unit (1) and multiple air supply unit (3), each air supply unit (3) is to a kind of gas of described mixed gas unit (1) supply, and passes through effusion meter (2) adjusting gas flow；Being provided with, in described mixed gas unit (1), the electrical heating elements that gas is heated, it is connected with described plasma generator (5)；
Described include funnel (15), powder feeding equipment (16) and stainless-steel pipe (7) to powder device (B), described powder feeding equipment (16) is to supply material in funnel (15), and material carries in carrier gas and lower is delivered in reactor (13) through stainless-steel pipe (7)；
Described flue gas analysis device (D) is connected with the top of described reactor (13), and it is used for the material after collecting and analyze burning and flue gas。
2. material ultrahigh speed temperature elevation system as claimed in claim 1, it is characterized in that, described flue gas analysis device (D) includes the air-introduced machine (19), dust collection unit (20), dust-filtering unit (21) and the tail gas treating unit (22) that are sequentially connected, and described dust-filtering unit (21) is also connected with flue gas analyzer (23)。
3. material ultrahigh speed temperature elevation system as claimed in claim 2, it is characterised in that described flue gas analyzer (23) is connected with computer (24) by data wire (27)。
4. material ultrahigh speed temperature elevation system as claimed in claim 3, it is characterised in that the powder-feeding amount of described material is 0.01g/min-100g/min, is cased with water cold sleeve (8) outside described stainless-steel pipe (7)。
5. material ultrahigh speed temperature elevation system as claimed in claim 4, it is characterised in that described reactor (13) adopts thermostable transparent material to make, itself and described plasma generator (5) adopt seal washer to be tightly connected。
6. material ultrahigh speed temperature elevation system as claimed in claim 5, it is characterized in that, described image unit includes high-speed camera (25) and CCD camera (18), wherein said high-speed camera (25) is located at watch window (9) place, and described CCD camera (18) is located at the top of reactor (13)。
7. material ultrahigh speed temperature elevation system as claimed in claim 6, it is characterised in that described reaction unit (C) is additionally provided with commutator (6), and described commutator (6) embeds in described reactor (13)。
8. material ultrahigh speed temperature elevation system as claimed in claim 7, it is characterised in that described holding furnace includes heating element heater (12), fixed heat-insulation layer (11) and detachable heat-insulation layer (10) from the inside to the outside successively。
9. material ultrahigh speed temperature elevation system as claimed in claim 8, it is characterised in that the heating-up temperature of described heating element heater (12) is 100K-2000K；The heating rate range of accommodation of described material ultrahigh speed temperature elevation system is 100K/s-100000K/s。
10. material ultrahigh speed temperature elevation system as claimed in claim 9, it is characterised in that described mixed gas unit (1) is connected with described plasma generator (5) by the pipeline added with electrical heating heating tape (26)。
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| CN201620088497.1U CN205332803U (en) | 2016-01-29 | 2016-01-29 | Material hypervelocity intensification system |
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| CN201620088497.1U CN205332803U (en) | 2016-01-29 | 2016-01-29 | Material hypervelocity intensification system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870539A (en) * | 2017-12-01 | 2019-06-11 | 华东理工大学 | Single pellet reaction measuring device and measuring method |
| CN110285426A (en) * | 2019-07-01 | 2019-09-27 | 东莞理工学院 | A kind of microwave-assisted burner of the solid waste of use for laboratory and method |
-
2016
- 2016-01-29 CN CN201620088497.1U patent/CN205332803U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870539A (en) * | 2017-12-01 | 2019-06-11 | 华东理工大学 | Single pellet reaction measuring device and measuring method |
| CN110285426A (en) * | 2019-07-01 | 2019-09-27 | 东莞理工学院 | A kind of microwave-assisted burner of the solid waste of use for laboratory and method |
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Granted publication date: 20160622 Termination date: 20180129 |