CN106404988A - Fuel,air and diluted gas mixed gas spontaneous combustion and ignition on-fire test device - Google Patents
Fuel,air and diluted gas mixed gas spontaneous combustion and ignition on-fire test device Download PDFInfo
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- CN106404988A CN106404988A CN201611070976.1A CN201611070976A CN106404988A CN 106404988 A CN106404988 A CN 106404988A CN 201611070976 A CN201611070976 A CN 201611070976A CN 106404988 A CN106404988 A CN 106404988A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Abstract
The invention relates to a fuel, air and diluted gas mixed gas spontaneous combustion and ignition on-fire test device which comprises a fuel supply system, an air supply system, a diluted gas supply system, a mixed gas preheating and mixing system, a combustion chamber and a gas exhaust and sampling system. The fuel supply system, the air supply system and the diluted gas supply system are used for achieving the beneficial effect of preparation of mixed gas with three components, namely fuel, air and diluted gas; a heating ring heats the mixed gas to enable the mixed gas to be spontaneously combusted so as to research the spontaneous combustion on-fire characteristic of the fuel, and external energy is injected to the mixed gas through an electrode to research the ignition on-fire characteristic of the fuel; by the arrangement of a stirrer, the beneficial effect of relative uniformity of concentration field-temperature field of the mixed gas is achieved.
Description
Technical field
The invention belongs to fuel Study on Physico-chemical field and in particular to a kind of Fuel-air-diluent gas gaseous mixture from
Fire and light test device of catching fire, reach acquisition Fuel-air-diluent gas three component gaseous mixture spontaneous combustion and light fire behaviour
Beneficial effect.
Background technology
The involuntary ignition characteristic of fuel and to light fire behaviour be one of important physicochemical property of fuel.Gasoline engine is using fire
The mode of spark plug ignition lights combustion mixture, and ignition coil passes through spark plug to combustion mixture Implantation Energy, gaseous mixture shape
Become initially fiery core, flame front starts to propagate to unburned mixture from fiery core.Diesel engine adopts high pressure to improve thermal efficiency of cycle
Contracting ratio pressuring combustion ignition, combustion mixture temperature, pressure in compression stroke quickly raise, when temperature, pressure reach gaseous mixture
During involuntary ignition condition, the gaseous mixture involuntary ignition being formed in delay period burns.The therefore spontaneous combustion of research combustion mixture and point
Combustion fire behaviour reduces oil consumption to the combustion process optimization of electromotor and pollutant emission is significant.First set out in the modern times
Through being recycled for diluting combustion mixture frequently with waste gas in motivation, reduce nitrogen oxides by reducing maximum combustion temperature
NOxDischarge, therefore considers that Fuel-air-diluent gas three component gaseous mixture has practical significance.With Abgasgesetz and oil consumption
The increasingly stringent of regulation, many automakers, colleges and universities and institute are actively to double fuel even three fuel combustion process
Studied, what research was more has gasoline-diesel dual-fuel, diesel oil-natural gas double-fuel, Diesel Methanol double fuel, diformazan
Ether-methanol double fuel, normal heptane-isobutyltrimethylmethane .-toluene three fuel combustion etc., may choosing in double fuel, three fuel combustion mode
Use liquids and gases fuel.In summary, test system fuel spontaneous combustion and lighting characteristic studied should have following spy
Point：First, can quantitatively prepare Fuel-air-diluent gas three component gaseous mixture, Fuel-air-dilute can prepared simultaneously
Flexibly switch between outgassing body three component gaseous mixture and Fuel-air two component gaseous mixture；Second, can be fired with weight feed gas
Material and liquid fuel；3rd, the concentration of the gaseous mixture of preparation, temperature should be uniformly；4th, aerofluxuss sampling system should be equipped with, so that
Analysis mixture combustion completeness and Soot Formation situation.
Content of the invention
The present invention provides a kind of Fuel-air-diluent gas gaseous mixture spontaneous combustion and light test device of catching fire, this device by
Fuel feed system, air supply system, diluent gas feed system, charge heating and hybrid system, combustor and aerofluxuss
Sampling system forms, and the present invention can obtain and prepare Fuel-air-diluent gas three component gaseous mixture, the combustion of weight feed gas
The beneficial effect of more uniform three aspects in combustion mixture concentration field-temperature field after material and liquid fuel, heating.
The present invention mainly by gaseous fuel high-pressure air source I 1, filter I 2, air relief valve I 3, ball valve I 4, flow controller I 5,
Ball valve II 6, gaseous fuel high-pressure air source II 7, filter II 8, air relief valve II 9, ball valve III 10, flow controller II 11, ball valve
IV 12, gaseous fuel high-pressure air source III 13, filter III 14, air relief valve III 15, ball valve V 16, flow controller III 17, ball valve
VI 18, four-way I 19, ball valve VII 20, threeway I 21, pressure-air pump 22, flow controller IV 23, ball valve VIII 24, continuously adjustabe become
Depressor I 25, alternating current power supply I 26, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector 30, pressure limiting valve I
31st, agitator I 32, motor I 33, temperature sensor I 34, fuel vaporization hybrid chamber 35, pressure transducer I 36, heating wire I 37,
Ball valve Ⅸ 38, filter V 39, vacuum pump I 40, ball valve Ⅹ 41, filter VI 42, flow controller V 43, filter VII 44,
Four-way II 45, flow controller VI 46, ball valve Ⅺ 47, filter VIII 48, air relief valve IV 49, diluent gas high-pressure air source 50, ball
Valve Ⅻ 51, temperature sensor II 52, heating wire II 53, pressure transducer II 54, gaseous mixture hybrid chamber 55, ball valve XIII56, mistake
Filter Ⅸ 57, vacuum pump II 58, pressure limiting valve II 59, agitator II 60, motor II 61, alternating current power supply II 62, continuously adjustabe transformation
Device II 63, electrode I 64, ignition coil I 65, accumulator I 66, ball valve XIV67, ball valve XV68, filter Ⅹ 69, air high pressure gas
Source 70, air relief valve V 71, filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way III 75, ball valve XVII76, filtration
Device Ⅻ 77, vacuum pump III 78, ball valve XVIII79, pressure transducer III 80, heating wire III 81, ball valve XIX82, filter
XIII83, vacuum pump IV 84, temperature sensor III 85, combustor 86, pressure limiting valve III 87, agitator III 88, motor III 89, exchange
Power supply III 90, continuously variable transformer III 91, electrode II 92, ignition coil II 93, accumulator II 94, ball valve XX95, tail gas are adopted
Sample detecting system 96, ball valve XXI97, threeway II 98 and ball valve XXII99 composition.
Fuel-air-diluent gas gaseous mixture spontaneous combustion that the present invention provides and light test device of catching fire, it is mainly by firing
Material feed system, air supply system, diluent gas feed system, charge heating and hybrid system, combustor and aerofluxuss are adopted
Sample system forms；Gaseous fuel high-pressure air source I 1, filter I 2, air relief valve I 3, ball valve I 4, flow-control in fuel feed system
Device I 5, ball valve II 6 are sequentially connected, gaseous fuel high-pressure air source II 7, filter II 8, air relief valve II 9, ball valve III 10, flow control
Device II 11 processed, ball valve IV 12 are sequentially connected, gaseous fuel high-pressure air source III 13, filter III 14, air relief valve III 15, ball valve V
16th, flow controller III 17, ball valve VI 18 are sequentially connected, and ball valve II 6, ball valve IV 12, ball valve VI 18 are respectively with four-way I 19 even
Connect, four-way I 19, ball valve VII 20, threeway I 21, flow controller IV 23, ball valve VIII 24 are sequentially connected, pressure-air pump 22 and three
Logical I 21 connections, ball valve VIII 24 is connected with fuel vaporization hybrid chamber 35, and heating wire I 37 is installed on inside fuel vaporization hybrid chamber 35,
Alternating current power supply I 26 is connected with heating wire I 37 by continuously variable transformer I 25, and motor I 33 is connected with agitator I 32, agitator
I 32 are installed on inside fuel vaporization hybrid chamber 35, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector
30th, fuel vaporization hybrid chamber 35 is sequentially connected, and pressure limiting valve I 31, temperature sensor I 34, pressure transducer I 36 are installed on fuel and steam
Send out on hybrid chamber 35, fuel vaporization hybrid chamber 35, ball valve Ⅸ 38, filter V 39, vacuum pump I 40 are sequentially connected, fuel vaporization
Hybrid chamber 35, ball valve Ⅹ 41, filter VI 42, flow controller V 43 are sequentially connected；Flow controller V 43, filter VII
44th, four-way II 45 is sequentially connected；Air supply system hollow upward adverse flow of QI pressurized air source 70, air relief valve V 71, filter Ⅺ 72, ball valve
XVI73, flow controller VII 74, four-way II 45 are sequentially connected；Diluent gas high-pressure air source 50, air relief valve in air supply system
IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45 are sequentially connected；Charge heating and hybrid system
Middle ball valve Ⅻ 51 is connected with four-way II 45, gaseous mixture hybrid chamber 55 respectively, temperature sensor II 52, pressure transducer II 54, limit
Pressure valve II 59 is respectively arranged on gaseous mixture hybrid chamber 55, gaseous mixture hybrid chamber 55, ball valve composition XIII56, filter Ⅸ 57,
Vacuum pump II 58, pressure limiting valve II 59 are sequentially connected, and agitator II 60 is installed on inside gaseous mixture hybrid chamber 55, motor II 61 with stir
Mix device II 60 to connect, heating wire II 53 is installed on inside gaseous mixture hybrid chamber 55, alternating current power supply II 62 passes through continuously adjustabe transformation
Device II 63 is connected with heating wire II 53, and accumulator I 66, ignition coil I 65, electrode I 64, gaseous mixture hybrid chamber 55 are sequentially connected,
Gaseous mixture hybrid chamber 55, ball valve XIV67, four-way III 75 are sequentially connected；Air high-pressure air source 70, filter Ⅹ 69, ball valve XV68,
Four-way III 75, ball valve XVII76, filter Ⅻ 77, vacuum pump III 78 are sequentially connected；Ball valve in combustor and aerofluxuss sampling system
XVIII79 is connected with four-way III 75, combustor 86 respectively, pressure transducer III 80, temperature sensor III 85, III 87 points of pressure limiting valve
It is not connected with combustor 86, agitator III 88 is installed on inside combustor 86, and motor III 89 is connected with agitator III 88, heating wire
III 81 are installed on inside combustor 86, and alternating current power supply III 90 is connected with heating wire III 81 by continuously variable transformer III 91, store
Battery II 94, ignition coil II 93, electrode II 92, combustor 86 are sequentially connected, combustor 86, ball valve XIX82, filter
XIII83, vacuum pump IV 84 are sequentially connected, and combustor 86, ball valve XX95, threeway II 98 are sequentially connected, threeway II 98 respectively with ball
Valve XXI97, ball valve XXII99 connect, and ball valve XXI97 is connected with tail gas sample detecting system 96.
Brief description
Fig. 1 is Fuel-air-diluent gas gaseous mixture spontaneous combustion and lights test device of catching fire
Wherein：Gaseous fuel high-pressure air source I 1, filter I 2, air relief valve I 3, ball valve I 4, flow controller I 5, ball valve II
6th, gaseous fuel high-pressure air source II 7, filter II 8, air relief valve II 9, ball valve III 10, flow controller II 11, ball valve IV 12, gas
Fluid fuel high-pressure air source III 13, filter III 14, air relief valve III 15, ball valve V 16, flow controller III 17, ball valve VI 18, four
Logical I 19, ball valve VII 20, threeway I 21, pressure-air pump 22, flow controller IV 23, ball valve VIII 24, continuously variable transformer I
25th, alternating current power supply I 26, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector 30, pressure limiting valve I 31, stir
Mix device I 32, motor I 33, temperature sensor I 34, fuel vaporization hybrid chamber 35, pressure transducer I 36, heating wire I 37, ball valve Ⅸ
38th, filter V 39, vacuum pump I 40, ball valve Ⅹ 41, filter VI 42, flow controller V 43, filter VII 44, four-way II
45th, flow controller VI 46, ball valve Ⅺ 47, filter VIII 48, air relief valve IV 49, diluent gas high-pressure air source 50, ball valve Ⅻ 51,
Temperature sensor II 52, heating wire II 53, pressure transducer II 54, gaseous mixture hybrid chamber 55, ball valve XIII56, filter Ⅸ
57th, vacuum pump II 58, pressure limiting valve II 59, agitator II 60, motor II 61, alternating current power supply II 62, continuously variable transformer II 63,
Electrode I 64, ignition coil I 65, accumulator I 66, ball valve XIV67, ball valve XV68, filter Ⅹ 69, air high-pressure air source 70, subtract
Pressure valve V 71, filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way III 75, ball valve XVII76, filter Ⅻ 77,
Vacuum pump III 78, ball valve XVIII79, pressure transducer III 80, heating wire III 81, ball valve XIX82, filter XIII83, vacuum
Pump IV 84, temperature sensor III 85, combustor 86, pressure limiting valve III 87, agitator III 88, motor III 89, alternating current power supply III 90, company
Continuous adjustable transformer III 91, electrode II 92, ignition coil II 93, accumulator II 94, ball valve XX95, tail gas sample detecting system
96th, ball valve XXI97, threeway II 98 and ball valve XXII99 composition；Described Fuel-air-diluent gas gaseous mixture spontaneous combustion and lighting
Test device of catching fire is mainly by fuel feed system, air supply system, diluent gas feed system, charge heating and mixing
System, combustor and aerofluxuss sampling system composition；Gaseous fuel high-pressure air source I 1, filter I 2, decompression in fuel feed system
Valve I 3, ball valve I 4, flow controller I 5, ball valve II 6 are sequentially connected, gaseous fuel high-pressure air source II 7, filter II 8, air relief valve
II 9, ball valve III 10, flow controller II 11, ball valve IV 12 are sequentially connected, gaseous fuel high-pressure air source III 13, filter III 14,
Air relief valve III 15, ball valve V 16, flow controller III 17, ball valve VI 18 are sequentially connected, ball valve II 6, ball valve IV 12, ball valve VI 18
It is connected with four-way I 19 respectively, four-way I 19, ball valve VII 20, threeway I 21, flow controller IV 23, ball valve VIII 24 are sequentially connected, high
Pressure air pump 22 is connected with threeway I 21, and ball valve VIII 24 is connected with fuel vaporization hybrid chamber 35, and heating wire I 37 is installed on fuel and steams
Send out inside hybrid chamber 35, alternating current power supply I 26 is connected with heating wire I 37 by continuously variable transformer I 25, motor I 33 and stirring
Device I 32 connects, and agitator I 32 is installed on inside fuel vaporization hybrid chamber 35, liquid fuel holding vessel 27, filter IV 28, liquid
Fluid fuel pump 29, fuel injector 30, fuel vaporization hybrid chamber 35 are sequentially connected, pressure limiting valve I 31, temperature sensor I 34, pressure sensing
Device I 36 is installed on fuel vaporization hybrid chamber 35, fuel vaporization hybrid chamber 35, ball valve Ⅸ 38, filter V 39, vacuum pump I 40
It is sequentially connected, fuel vaporization hybrid chamber 35, ball valve Ⅹ 41, filter VI 42, flow controller V 43 are sequentially connected；Flow-control
Device V 43, filter VII 44, four-way II 45 are sequentially connected；Air supply system hollow upward adverse flow of QI pressurized air source 70, air relief valve V 71, mistake
Filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way II 45 are sequentially connected；Diluent gas high pressure in air supply system
Source of the gas 50, air relief valve IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45 are sequentially connected；Gaseous mixture
In preheating and hybrid system, ball valve Ⅻ 51 is connected with four-way II 45, gaseous mixture hybrid chamber 55 respectively, temperature sensor II 52, pressure
Sensor II 54, pressure limiting valve II 59 are respectively arranged on gaseous mixture hybrid chamber 55, gaseous mixture hybrid chamber 55, ball valve composition
XIII56, filter Ⅸ 57, vacuum pump II 58, pressure limiting valve II 59 are sequentially connected, and agitator II 60 is installed on gaseous mixture hybrid chamber
Inside 55, motor II 61 is connected with agitator II 60, and heating wire II 53 is installed on inside gaseous mixture hybrid chamber 55, alternating current power supply II
62 are connected with heating wire II 53 by continuously variable transformer II 63, accumulator I 66, ignition coil I 65, electrode I 64, gaseous mixture
Hybrid chamber 55 is sequentially connected, and gaseous mixture hybrid chamber 55, ball valve XIV67, four-way III 75 are sequentially connected；Air high-pressure air source 70, mistake
Filter Ⅹ 69, ball valve XV68, four-way III 75, ball valve XVII76, filter Ⅻ 77, vacuum pump III 78 are sequentially connected；Combustor and
In aerofluxuss sampling system, ball valve XVIII79 is connected with four-way III 75, combustor 86 respectively, pressure transducer III 80, temperature sensing
Device III 85, pressure limiting valve III 87 are connected with combustor 86 respectively, and agitator III 88 is installed on inside combustor 86, motor III 89 with stir
Mix device III 88 to connect, heating wire III 81 is installed on inside combustor 86, alternating current power supply III 90 passes through continuously variable transformer III 91
It is connected with heating wire III 81, accumulator II 94, ignition coil II 93, electrode II 92, combustor 86 are sequentially connected, combustor 86,
Ball valve XIX82, filter XIII83, vacuum pump IV 84 are sequentially connected, and combustor 86, ball valve XX95, threeway II 98 are sequentially connected,
Threeway II 98 is connected with ball valve XXI97, ball valve XXII99 respectively, and ball valve XXI97 is connected with tail gas sample detecting system 96.
Specific embodiment
Below in conjunction with accompanying drawing 1, technical solution of the present invention is further elaborated：
Embodiment：Measure autoignition temperature under 20bar for normal heptane+methane air-argon three component gaseous mixture, positive heptan
The molar fraction of alkane, methane, air and argon is respectively A%, B%, C% and D%.
Fuel is normal heptane-methane double fuel, is liquid and fuel gas respectively, because only that a kind of combustion of gaseous state of methane
Material is it is only necessary to use a fuel gas feeding pipe (first fuel gas feeding pipe：Gaseous fuel high-pressure air source I 1,
Filter I 2, air relief valve I 3, ball valve I 4, flow controller I 5, ball valve II 6), two other fuel gas feeding pipe does not need
Use (Article 2 fuel gas feeding pipe：Gaseous fuel high-pressure air source II 7, filter II 8, air relief valve II 9, ball valve III 10,
Flow controller II 11, ball valve IV 12；Article 3 fuel gas feeding pipe：Gaseous fuel high-pressure air source III 13, filter III
14th, air relief valve III 15, ball valve V 16, flow controller III 17, ball valve VI 18).Gaseous fuel high-pressure air source I 1 storing methane fires
Material, opens ball valve I 4, flow controller I 5 and ball valve II 6, methane fuel flows through filter I 2, air relief valve I 3, ball valve I 4, flow
Controller I 5, ball valve II 6 enter four-way I 19, when methane flow through flow controller I 5 reach demand flow after close ball valve I 4,
Flow controller I 5 and ball valve II 6.Before fuel incoming fuel evaporation hybrid chamber 35, open ball valve Ⅸ 38, will by vacuum pump I 40
Fuel vaporization hybrid chamber 35 evacuation is it is ensured that fuel accurately supplies.Open ball valve VII 20, flow controller IV 23 and ball valve VIII
24, methane flows to fuel vaporization hybrid chamber 35 through ball valve VII 20, threeway I 21, flow controller IV 23, ball valve VIII 24.It is stored in
Normal heptane in liquid fuel holding vessel 27 steams through filter IV 28, liquid fuel feed pump 29, fuel injector 30 metered injection to fuel
Send out in hybrid chamber 35, now close ball valve VIII 24 and ball valve Ⅹ 41, then constitute a system of remaining silent in fuel vaporization hybrid chamber 35.
Heating wire I 37 certain power is made gaseous mixture to be preheated it is therefore an objective to be made to be ejected into by adjusting continuously variable transformer I 25
Normal heptane droplet carburation by evaporation in fuel vaporization hybrid chamber 35, heating gaseous mixture is to 110 DEG C of slightly above normal heptane boilings of temperature
98 DEG C of temperature of point.Agitator I 32 is started by motor I 33, Forced Mixing is carried out to fuel mixture, mixing time is about
5 minutes, it is then shut off motor I 33, stop stirring.Simultaneously close off ball valve Ⅻ 51, ball valve XV68, ball valve XX95, open ball valve
XIII56, ball valve XIV67, ball valve XVII76, ball valve XVIII79, ball valve XIX82, using vacuum pump I 40, vacuum pump III 78 and
Vacuum pump IV 84 is by combustor 86, gaseous mixture hybrid chamber 55 evacuation it is ensured that fuel, air, diluent gas weight feed.Take out true
Close vacuum pump III 78 and vacuum pump IV 84 after sky, close ball valve Ⅻ 51, ball valve XIII56, ball valve XV68, ball valve XX95, ball valve
XIV67, ball valve XVII76, ball valve XVIII79, ball valve XIX82.Open ball valve Ⅹ 41 and ball valve Ⅻ 51, fuel mixture is through ball
Valve Ⅹ 41, filter VI 42, flow controller V 43, filter VII 44, four-way II 45, ball valve Ⅻ 51 enter gaseous mixture hybrid chamber
55, air is through air high-pressure air source 70, air relief valve V 71, filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way
II 45, ball valve Ⅻ 51 enters gaseous mixture hybrid chamber 55, and air mass flow passes through flow controller VII 74 precise control.Argon is through dilution
Gas high pressure source of the gas 50, air relief valve IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45, ball valve Ⅻ
51 entrance gaseous mixture hybrid chambers 55, argon flow amount passes through flow controller VI 46 precise control.Fuel, air, diluent gas are fixed
Amount keeps ball valve Ⅻ 51, ball valve XIII56 and ball valve XIV67 to make gaseous mixture hybrid chamber 55 after being fed into gaseous mixture hybrid chamber 55
Become the system of remaining silent.Make heating wire II 53 with certain power to Fuel-air-dilute by adjusting continuously variable transformer II 63
Release gas mixture to be preheated, make mixture temperature reach 140 DEG C, because the autoignition temperature of normal heptane and methane is all far above
140 DEG C, so gaseous mixture will not spontaneous combustion in gaseous mixture hybrid chamber 55.Agitator II 60 is started by motor II 61, makes mixing
Mixture strength in gas hybrid chamber 55 and temperature uniformly, are then shut off motor II 61 and stop stirring.Open ball valve XIV67, ball
Valve XVIII79, gaseous mixture enters combustor 86.It is then shut off ball valve XVIII79, ball valve XIX82, ball valve XX95 make combustor 86
Constitute system of remaining silent, agitator III 88 is started by motor III 89, the gaseous mixture in combustor 86 is sufficiently mixed, then
Phase down motor III 89 stops stirring.Make III 81 pairs of gaseous mixture heating of heating wire by adjusting continuously variable transformer III 91,
Until gaseous mixture occurs spontaneous combustion, gaseous mixture spontaneous combustion can be by pressure transducer III 80, the pressure of temperature sensor III 85 collection, temperature
Degree signal is judged, records the autoignition temperature of gaseous mixture under this pressure simultaneously.A part of aerofluxuss after gaseous mixture spontaneous combustion can be led to
Cross ball valve XX95, threeway II 98, ball valve XXI97 entrance tail gas sample detecting system 96, record efficiency of combustion, CO, HC, NOx, carbon
Cigarette discharge etc..Another part aerofluxuss can by ball valve XX95, threeway II 98 and ball valve XXII99 discharge.
What this device was equally applicable to measure fuel lights fire behaviour, only need to ensure that gaseous mixture does not occur the condition of spontaneous combustion
Under, the gaseous mixture in combustor 86 is lighted by electrode II 92, the electric energy of electrode II 92 is by accumulator II 94, ignition coil
II 93 offers.Under conditions of relatively low to mixture strength, temperature homogeneity requirement, gaseous mixture hybrid chamber 55 equally can be with ignition
Burn the effect of room, therefore gaseous mixture hybrid chamber 55 equally configures the igniters such as electrode I 64, ignition coil I 65, accumulator I 66.
In the present invention using fuel feed system, air supply system and diluent gas feed system realize Fuel-air-
The beneficial effect of diluent gas three component gaseous mixture preparation, can achieve pluralities of fuel (combustions as double in the gas-liquid of methane-normal heptane simultaneously
Material, gas gas-liquid three fuel of methane-propane-normal heptane etc.) supply；Equally enable after installing diluent gas feed system in the same manner additional
The preparation of diluent gas gaseous mixture (as argon-nitrogen, argon-helium, nitrogen-carbon dioxide etc.).Likewise, only need to cancel dilute
The supply of outgassing body achieves that Fuel-air two component gaseous mixture supplies.Gaseous mixture can be heated to by the present invention by heating collar
The involuntary ignition characteristic of autoignition temperature research gaseous mixture；External energy can also be injected to gaseous mixture by electrode and study gaseous mixture
Light fire behaviour, the therefore present invention obtains and just can study gaseous mixture involuntary ignition without additional equipment and light fire behaviour
Beneficial effect.The more uniform beneficial effect in mixture strength field-temperature field can be obtained by configuring agitator.
The embodiment of present invention described above, does not constitute limiting the scope of the present invention.Any in the present invention
Spiritual principles within done modification, equivalent and improvement etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (1)
1. Fuel-air-diluent gas gaseous mixture spontaneous combustion and light test device of catching fire, it is mainly by gaseous fuel high-pressure air source
I (1), filter I (2), air relief valve I (3), ball valve I (4), flow controller I (5), ball valve II (6), gaseous fuel high-pressure air source
II (7), filter II (8), air relief valve II (9), ball valve III (10), flow controller II (11), ball valve IV (12), gaseous fuel
High-pressure air source III (13), filter III (14), air relief valve III (15), ball valve V (16), flow controller III (17), ball valve VI
(18), four-way I (19), ball valve VII (20), threeway I (21), pressure-air pump (22), flow controller IV (23), ball valve VIII
(24), continuously variable transformer I (25), alternating current power supply I (26), liquid fuel holding vessel (27), filter IV (28), liquid combustion
Material pump (29), fuel injector (30), pressure limiting valve I (31), agitator I (32), motor I (33), temperature sensor I (34), fuel steam
Send out hybrid chamber (35), pressure transducer I (36), heating wire I (37), ball valve Ⅸ (38), filter V (39), vacuum pump I (40),
Ball valve Ⅹ (41), filter VI (42), flow controller V (43), filter VII (44), four-way II (45), flow controller VI
(46), ball valve Ⅺ (47), filter VIII (48), air relief valve IV (49), diluent gas high-pressure air source (50), ball valve Ⅻ (51), temperature
Degree sensor II (52), heating wire II (53), pressure transducer II (54), gaseous mixture hybrid chamber (55), ball valve XIII (56), mistake
Filter Ⅸ (57), vacuum pump II (58), pressure limiting valve II (59), agitator II (60), motor II (61), alternating current power supply II (62),
Continuously variable transformer II (63), electrode I (64), ignition coil I (65), accumulator I (66), ball valve XIV (67), ball valve XV
(68), filter Ⅹ (69), air high-pressure air source (70), air relief valve V (71), filter Ⅺ (72), ball valve XVI (73), flow
Controller VII (74), four-way III (75), ball valve XVII (76), filter Ⅻ (77), vacuum pump III (78), ball valve XVIII (79),
Pressure transducer III (80), heating wire III (81), ball valve XIX (82), filter XIII (83), vacuum pump IV (84), temperature pass
Sensor III (85), combustor (86), pressure limiting valve III (87), agitator III (88), motor III (89), alternating current power supply III (90), company
Continuous adjustable transformer III (91), electrode II (92), ignition coil II (93), accumulator II (94), ball valve XX (95), tail gas sampling
Detecting system (96), ball valve XXI (97), threeway II (98) and ball valve XXII (99) composition；Described Fuel-air-diluent gas
Gaseous mixture spontaneous combustion and lighting catch fire test device mainly by fuel feed system, air supply system, diluent gas feed system,
Charge heating and hybrid system, combustor and aerofluxuss sampling system composition；Gaseous fuel high-pressure air source I in fuel feed system
(1), filter I (2), air relief valve I (3), ball valve I (4), flow controller I (5), ball valve II (6) are sequentially connected, gaseous fuel
High-pressure air source II (7), filter II (8), air relief valve II (9), ball valve III (10), flow controller II (11), ball valve IV (12)
It is sequentially connected, gaseous fuel high-pressure air source III (13), filter III (14), air relief valve III (15), ball valve V (16), flow-control
Device III (17), ball valve VI (18) are sequentially connected, and ball valve II (6), ball valve IV (12), ball valve VI (18) are respectively with four-way I (19) even
Connect, four-way I (19), ball valve VII (20), threeway I (21), flow controller IV (23), ball valve VIII (24) are sequentially connected, high pressure is empty
Air pump (22) is connected with threeway I (21), and ball valve VIII (24) is connected with fuel vaporization hybrid chamber (35), and heating wire I (37) is installed on
Fuel vaporization hybrid chamber (35) is internal, and alternating current power supply I (26) is connected with heating wire I (37) by continuously variable transformer I (25),
Motor I (33) is connected with agitator I (32), and agitator I (32) is installed on fuel vaporization hybrid chamber (35) inside, and liquid fuel stores up
Deposit tank (27), filter IV (28), liquid fuel feed pump (29), fuel injector (30), fuel vaporization hybrid chamber (35) are sequentially connected, limit
Pressure valve I (31), temperature sensor I (34), pressure transducer I (36) are installed on fuel vaporization hybrid chamber (35), fuel vaporization
Hybrid chamber (35), ball valve Ⅸ (38), filter V (39), vacuum pump I (40) are sequentially connected, fuel vaporization hybrid chamber (35), ball
Valve Ⅹ (41), filter VI (42), flow controller V (43) are sequentially connected；Flow controller V (43), filter VII (44),
Four-way II (45) is sequentially connected；Air supply system hollow upward adverse flow of QI pressurized air source (70), air relief valve V (71), filter Ⅺ (72),
Ball valve XVI (73), flow controller VII (74), four-way II (45) are sequentially connected；Diluent gas high pressure gas in air supply system
Source (50), air relief valve IV (49), filter VIII (48), ball valve Ⅺ (47), flow controller VI (46), four-way II (45) connect successively
Connect；In charge heating and hybrid system, ball valve Ⅻ (51) is connected with four-way II (45), gaseous mixture hybrid chamber (55) respectively, temperature
Sensor II (52), pressure transducer II (54), pressure limiting valve II (59) are respectively arranged on gaseous mixture hybrid chamber (55), gaseous mixture
Hybrid chamber (55), ball valve composition XIII (56), filter Ⅸ (57), vacuum pump II (58), pressure limiting valve II (59) are sequentially connected, and stir
Mix device II (60) and be installed on gaseous mixture hybrid chamber (55) inside, motor II (61) is connected with agitator II (60), heating wire II
(53) it is installed on gaseous mixture hybrid chamber (55) internal, alternating current power supply II (62) passes through continuously variable transformer II (63) and heating wire
II (53) connection, accumulator I (66), ignition coil I (65), electrode I (64), gaseous mixture hybrid chamber (55) are sequentially connected, mixing
Gas hybrid chamber (55), ball valve XIV (67), four-way III (75) are sequentially connected；Air high-pressure air source (70), filter Ⅹ (69), ball
Valve XV (68), four-way III (75), ball valve XVII (76), filter Ⅻ (77), vacuum pump III (78) are sequentially connected；Combustor and row
In gas sampling system, ball valve XVIII (79) is connected with four-way III (75), combustor (86) respectively, pressure transducer III (80), temperature
Degree sensor III (85), pressure limiting valve III (87) are connected with combustor (86) respectively, and agitator III (88) is installed on combustor (86)
Inside, motor III (89) is connected with agitator III (88), and heating wire III (81) is installed on combustor (86) inside, alternating current power supply III
(90) it is connected with heating wire III (81) by continuously variable transformer III (91), accumulator II (94), ignition coil II (93), electricity
Pole II (92), combustor (86) are sequentially connected, combustor (86), ball valve XIX (82), filter XIII (83), vacuum pump IV
(84) be sequentially connected, combustor (86), ball valve XX (95), threeway II (98) are sequentially connected, threeway II (98) respectively with ball valve XXI
(97), ball valve XXII (99) connects, and ball valve XXI (97) is connected with tail gas sample detecting system (96).
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| CN201611070976.1A CN106404988B (en) | 2016-11-29 | 2016-11-29 | Fuel-air-diluent gas gaseous mixture spontaneous combustion and light test device of catching fire |
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| CN106404988A true CN106404988A (en) | 2017-02-15 |
| CN106404988B CN106404988B (en) | 2018-06-01 |
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| CN107497309A (en) * | 2017-10-11 | 2017-12-22 | 河南科技大学 | A kind of liquid fuel and gas homogeneous charge forming apparatus and method |
| CN111678128A (en) * | 2020-06-30 | 2020-09-18 | 安徽工业大学 | Liquid combustion system and combustion method for obtaining high-stability flame based on high-precision control |
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| CN111678128A (en) * | 2020-06-30 | 2020-09-18 | 安徽工业大学 | Liquid combustion system and combustion method for obtaining high-stability flame based on high-precision control |
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| Publication number | Publication date |
|---|---|
| CN106404988B (en) | 2018-06-01 |
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