CN106404988B - Fuel-air-diluent gas gaseous mixture spontaneous combustion and light test device of catching fire - Google Patents
Fuel-air-diluent gas gaseous mixture spontaneous combustion and light test device of catching fire Download PDFInfo
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- CN106404988B CN106404988B CN201611070976.1A CN201611070976A CN106404988B CN 106404988 B CN106404988 B CN 106404988B CN 201611070976 A CN201611070976 A CN 201611070976A CN 106404988 B CN106404988 B CN 106404988B
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Abstract
The present invention relates to a kind of fuel-air diluent gas gaseous mixture spontaneous combustion and light test device of catching fire, including fuel feed system, air supply system, diluent gas feed system, charge heating and hybrid system, combustion chamber and exhaust sampling system, the advantageous effect prepared using three component gaseous mixture of fuel feed system, air supply system and diluent gas feed system realization fuel-air diluent gas；Gaseous mixture is heated by spontaneous combustion research fuel involuntary ignition characteristic by heating collar and injects the advantageous effect of external energy research ignited fuel fire behaviour to gaseous mixture by electrode；The more uniform advantageous effect in mixture strength field temperature field is obtained by configuring blender.
Description
Technical field
The invention belongs to fuel Study on Physico-chemical fields, and in particular to a kind of Fuel-air-diluent gas gaseous mixture is certainly
It fires and lights test device of catching fire, reach the three component gaseous mixture spontaneous combustion of acquisition Fuel-air-diluent gas and light fire behaviour
Advantageous 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 is by spark plug to combustion mixture Implantation Energy, gaseous mixture shape
Into initial fiery core, flame front is propagated since fiery core to unburned mixture.Diesel engine uses high pressure to improve thermal efficiency of cycle
Contracting is than pressuring combustion ignition, and combustion mixture temperature, pressure in compression stroke quickly raise, when temperature, pressure reach gaseous mixture
During involuntary ignition condition, the gaseous mixture involuntary ignition formed in delay period burns.Therefore the spontaneous combustion of research combustion mixture and point
Combustion fire behaviour reduces oil consumption to the combustion process optimization of engine and pollutant emission is of great significance.It first sets out in the modern times
It is passed through in motivation and is recycled for dilution combustion mixture frequently with exhaust gas, nitrogen oxides is reduced by reducing maximum combustion temperature
NOxDischarge, therefore consider that three component gaseous mixture of Fuel-air-diluent gas has practical significance.With emission regulation and oil consumption
Regulation it is increasingly strict, more automakers, colleges and universities and research institute actively to double fuel even three fuel combustion process
It is studied, studying more has gasoline-diesel dual-fuel, diesel oil-natural gas double-fuel, Diesel Methanol double fuel, diformazan
Ether-methanol double fuel, normal heptane-three fuel combustion of isooctane-toluene etc., may choosing in double fuel, three fuel combustion modes
With liquids and gases fuel.In summary, the test system studied fuel spontaneous combustion and lighting characteristic should have following spy
Point：First, it can quantify and prepare three component gaseous mixture of Fuel-air-diluent gas, while Fuel-air-dilute can prepared
Flexibly switch between two component gaseous mixture of three component gaseous mixture of outgassing body and Fuel-air；Second, it can be fired with weight feed gas
Material and liquid fuel；3rd, concentration, the temperature of the gaseous mixture of preparation should be uniform；4th, exhaust sampling system should be equipped with, so as to
Analyze mixture combustion completeness and Soot Formation situation.
The content of the invention
The present invention provides a kind of Fuel-air-diluent gas gaseous mixture spontaneous combustion and lights test device of catching fire, the device by
Fuel feed system, air supply system, diluent gas feed system, charge heating and hybrid system, combustion chamber and exhaust
Sampling system forms, and the present invention, which can obtain, prepares three component gaseous mixture of Fuel-air-diluent gas, the combustion of weight feed gas
The advantageous 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, pressure reducing 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, pressure reducing 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, pressure reducing 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 adjustable change
Depressor I 25, AC power I 26, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector 30, pressure limiting valve I
31st, blender I 32, motor I 33, temperature sensor I 34, fuel vaporization mixing chamber 35, pressure sensor 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, pressure reducing valve IV 49, diluent gas high-pressure air source 50, ball
Valve Ⅻ 51, temperature sensor II 52, heating wire II 53, pressure sensor II 54, gaseous mixture mixing chamber 55, ball valve XIII56, mistake
Filter Ⅸ 57, vacuum pump II 58, pressure limiting valve II 59, blender II 60, motor II 61, AC power II 62, continuously adjustable 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, pressure reducing valve V 71, filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way III 75, ball valve XVII76, filtering
Device Ⅻ 77, vacuum pump III 78, ball valve XVIII79, pressure sensor III 80, heating wire III 81, ball valve XIX82, filter
XIII83, vacuum pump IV 84, temperature sensor III 85, combustion chamber 86, pressure limiting valve III 87, blender 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 compositions.
Fuel-air provided by the invention-diluent gas gaseous mixture spontaneous combustion and test device of catching fire is lighted, mainly by firing
Material feed system, air supply system, diluent gas feed system, charge heating and hybrid system, combustion chamber and exhaust are adopted
Sample system forms；Gaseous fuel high-pressure air source I 1, filter I 2, pressure reducing 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, pressure reducing 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, pressure reducing 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 connect respectively with four-way I 19
It connects, 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 connection, ball valve VIII 24 are connected with fuel vaporization mixing chamber 35, and heating wire I 37 is installed on inside fuel vaporization mixing chamber 35,
AC power I 26 is connected by continuously variable transformer I 25 with heating wire I 37, and motor I 33 is connected with blender I 32, blender
I 32 are installed on inside fuel vaporization mixing chamber 35, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector
30th, fuel vaporization mixing chamber 35 is sequentially connected, and pressure limiting valve I 31, temperature sensor I 34, pressure sensor I 36 are installed on fuel steaming
It sends out on mixing chamber 35, fuel vaporization mixing chamber 35, ball valve Ⅸ 38, filter V 39, vacuum pump I 40 are sequentially connected, fuel vaporization
Mixing 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 high-pressure air source 70, pressure reducing valve V 71, filter Ⅺ 72, ball valve in air supply system
XVI73, flow controller VII 74, four-way II 45 are sequentially connected；Diluent gas high-pressure air source 50 in diluent gas feed system subtracts
Pressure valve IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45 are sequentially connected；Charge heating and mixing
Ball valve Ⅻ 51 is connected respectively with four-way II 45, gaseous mixture mixing chamber 55 in system, temperature sensor II 52, pressure sensor II
54th, pressure limiting valve II 59 is respectively arranged on gaseous mixture mixing chamber 55, gaseous mixture mixing chamber 55, ball valve XIII56, filter Ⅸ 57,
Vacuum pump II 58 is sequentially connected, and blender II 60 is installed on inside gaseous mixture mixing chamber 55, and motor II 61 connects with blender II 60
It connects, heating wire II 53 is installed on inside gaseous mixture mixing chamber 55, and AC power II 62 passes through continuously variable transformer II 63 and electricity
Heated filament II 53 connects, and accumulator I 66, ignition coil I 65, electrode I 64, gaseous mixture mixing chamber 55 are sequentially connected, gaseous mixture mixing
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；XVIII79 points of ball valve in combustion chamber and exhaust sampling system
Be not connected with four-way III 75, combustion chamber 86, pressure sensor III 80, temperature sensor III 85, pressure limiting valve III 87 respectively with burning
Room 86 connects, and blender III 88 is installed on inside combustion chamber 86, and motor III 89 is connected with blender III 88, and heating wire III 81 is installed
Inside combustion chamber 86, AC power III 90 is connected by continuously variable transformer III 91 with heating wire III 81, accumulator II 94,
Ignition coil II 93, electrode II 92, combustion chamber 86 are sequentially connected, combustion chamber 86, ball valve XIX82, filter XIII83, vacuum pump
IV 84 are sequentially connected, and combustion chamber 86, ball valve XX95, threeway II 98 are sequentially connected, threeway II 98 respectively with ball valve XXI97, ball valve
XXII99 connections, ball valve XXI97 are connected with tail gas sample detecting system 96.
Description of the drawings
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, pressure reducing 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, pressure reducing 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, pressure reducing 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, AC power 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 mixing chamber 35, pressure sensor 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, pressure reducing valve IV 49, diluent gas high-pressure air source 50, ball valve Ⅻ 51,
Temperature sensor II 52, heating wire II 53, pressure sensor II 54, gaseous mixture mixing chamber 55, ball valve XIII56, filter Ⅸ
57th, vacuum pump II 58, pressure limiting valve II 59, blender II 60, motor II 61, AC power II 62, continuously variable transformer II 63,
Electrode I 64, ignition coil I 65, ball valve XIV67, ball valve XV68, filter Ⅹ 69, air high-pressure air source 70, subtract accumulator I 66
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 sensor III 80, heating wire III 81, ball valve XIX82, filter XIII83, vacuum
Pump IV 84, temperature sensor III 85, combustion chamber 86, pressure limiting valve III 87, blender III 88, motor III 89, AC power 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 compositions；It the Fuel-air-diluent gas gaseous mixture spontaneous combustion and lights
Test device of catching fire is mainly by fuel feed system, air supply system, diluent gas feed system, charge heating and mixing
System, combustion chamber and exhaust 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, pressure reducing 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,
Pressure reducing 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 respectively with four-way I 19, 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 mixing chamber 35, and heating wire I 37 is installed on fuel steaming
It sends out inside mixing chamber 35, AC power I 26 is connected by continuously variable transformer I 25 with heating wire I 37, motor I 33 and stirring
Device I 32 connects, and blender I 32 is installed on inside fuel vaporization mixing chamber 35, liquid fuel holding vessel 27, filter IV 28, liquid
Fluid fuel pump 29, fuel injector 30, fuel vaporization mixing chamber 35 are sequentially connected, pressure limiting valve I 31, temperature sensor I 34, pressure sensing
Device I 36 is installed on fuel vaporization mixing chamber 35, fuel vaporization mixing chamber 35, ball valve Ⅸ 38, filter V 39, vacuum pump I 40
It is sequentially connected, fuel vaporization mixing 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 high-pressure air source 70, pressure reducing valve V 71, mistake in air supply system
Filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way II 45 are sequentially connected；Diluent gas in diluent gas feed system
High-pressure air source 50, pressure reducing valve IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45 are sequentially connected；It is mixed
Ball valve Ⅻ 51 in gas preheating and hybrid system is closed to be connected with four-way II 45, gaseous mixture mixing chamber 55 respectively, temperature sensor II 52,
Pressure sensor II 54, pressure limiting valve II 59 are respectively arranged on gaseous mixture mixing chamber 55, gaseous mixture mixing chamber 55, ball valve
XIII56, filter Ⅸ 57, vacuum pump II 58 are sequentially connected, and blender II 60 is installed on inside gaseous mixture mixing chamber 55, motor
II 61 are connected with blender II 60, and heating wire II 53 is installed on inside gaseous mixture mixing chamber 55, and AC power II 62 is by continuous
Adjustable transformer II 63 is connected with heating wire II 53, accumulator I 66, ignition coil I 65, electrode I 64, gaseous mixture mixing chamber 55 according to
Secondary connection, gaseous mixture mixing 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；Combustion chamber and exhaust sampling system
Middle ball valve XVIII79 is connected respectively with four-way III 75, combustion chamber 86, pressure sensor III 80, temperature sensor III 85, pressure limiting valve
III 87 are connected respectively with combustion chamber 86, and blender III 88 is installed on inside combustion chamber 86, and motor III 89 is connected with blender III 88,
Heating wire III 81 is installed on inside combustion chamber 86, and AC power III 90 is connected by continuously variable transformer III 91 and heating wire III 81
It connects, accumulator II 94, ignition coil II 93, electrode II 92, combustion chamber 86 are sequentially connected, combustion chamber 86, ball valve XIX82, filtering
Device XIII83, vacuum pump IV 84 are sequentially connected, and combustion chamber 86, ball valve XX95, threeway II 98 are sequentially connected, threeway II 98 respectively with
Ball valve XXI97, ball valve XXII99 connections, ball valve XXI97 are connected with tail gas sample detecting system 96.
Specific embodiment
Technical solution of the present invention is further elaborated below in conjunction with attached drawing 1：
Embodiment：Measure autoignition temperature of the three component gaseous mixture of normal heptane+methane air-argon gas under 20bar, positive heptan
Alkane, methane, the molar fraction of air and argon gas are 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 gaseous state combustion of methane
Material, it is only necessary to use a fuel gas feeding pipe (first fuel gas feeding pipe：Gaseous fuel high-pressure air source I 1,
6), two other fuel gas feeding pipe need not for filter I 2, pressure reducing valve I 3, ball valve I 4, flow controller I 5, ball valve II
Use (Article 2 fuel gas feeding pipe：Gaseous fuel high-pressure air source II 7, filter II 8, pressure reducing 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, pressure reducing valve III 15, ball valve V 16, flow controller III 17, ball valve VI be 18).I 1 storing methane of gaseous fuel high-pressure air source fires
Material opens ball valve I 4, flow controller I 5 and ball valve II 6, methane fuel and flows through filter I 2, pressure reducing valve I 3, ball valve I 4, flow
Controller I 5, ball valve II 6 enter four-way I 19, when methane flow through after flow controller I 5 reaches the flow of demand close ball valve I 4,
Flow controller I 5 and ball valve II 6.Before fuel enters fuel vaporization mixing chamber 35, ball valve Ⅸ 38 is opened, it will by vacuum pump I 40
Fuel vaporization mixing chamber 35 vacuumizes, and ensures that fuel accurately supplies.Open ball valve VII 20, flow controller IV 23 and ball valve VIII
24, methane flows into fuel vaporization mixing 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 is steamed by filter IV 28, liquid fuel feed pump 29,30 metered injection of fuel injector to fuel
It sends out in mixing chamber 35, closes ball valve VIII 24 and ball valve Ⅹ 41 at this time, then a system of remaining silent is formed in fuel vaporization mixing chamber 35.
The power for making heating wire I 37 certain by adjusting continuously variable transformer I 25 preheats gaseous mixture, it is therefore an objective to make to be ejected into
Normal heptane droplet carburation by evaporation in fuel vaporization mixing chamber 35, heating gaseous mixture to 110 DEG C of slightly above normal heptane boilings of temperature
98 DEG C of temperature of point.Blender I 32 is started by motor I 33, Forced Mixing is carried out to fuel mixture, mixing time is about
5 minutes, motor I 33 is then shut off, stops stirring.Ball valve Ⅻ 51, ball valve XV68, ball valve XX95 are simultaneously closed off, opens ball valve
XIII56, ball valve XIV67, ball valve XVII76, ball valve XVIII79, ball valve XIX82 utilize vacuum pump I 40, III 78 and of vacuum pump
Vacuum pump IV 84 vacuumizes combustion chamber 86, gaseous mixture mixing chamber 55, ensures fuel, air, diluent gas weight feed.It takes out true
Vacuum pump III 78 and vacuum pump IV 84 are closed after sky, closes 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.Ball valve Ⅹ 41 and ball valve Ⅻ 51 are opened, 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 mixing chamber
55, air is by air high-pressure air source 70, pressure reducing valve V 71, filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way
II 45, ball valve Ⅻ 51 is accurately controlled into gaseous mixture mixing chamber 55, air mass flow by flow controller VII 74.Argon gas is through dilution
Gas high pressure source of the gas 50, pressure reducing valve IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45, ball valve Ⅻ
51 are accurately controlled into gaseous mixture mixing chamber 55, argon flow amount by flow controller VI 46.Fuel, air, diluent gas are fixed
Amount keeps ball valve Ⅻ 51, ball valve XIII56 and ball valve XIV67 to make gaseous mixture mixing chamber 55 after being fed into gaseous mixture mixing chamber 55
As the system of remaining silent.Make heating wire II 53 with certain power to Fuel-air-dilute by adjusting continuously variable transformer II 63
It releases gas mixture to be preheated, mixture temperature is made to 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 the spontaneous combustion in gaseous mixture mixing chamber 55.Blender II 60 is started by motor II 61, makes mixing
Mixture strength and temperature in gas mixing chamber 55 is uniform, is then shut off motor II 61 and stops stirring.Open ball valve XIV67, ball
Valve XVIII79, gaseous mixture enter combustion chamber 86.Being then shut off ball valve XVIII79, ball valve XIX82, ball valve XX95 makes combustion chamber 86
Composition is remained silent system, is started blender III 88 by motor III 89, the gaseous mixture in combustion chamber 86 is sufficiently mixed, then
Phase down motor III 89 stops stirring.III 81 pairs of gaseous mixtures of heating wire are heated by adjusting continuously variable transformer III 91,
Until spontaneous combustion, pressure, the temperature that gaseous mixture spontaneous combustion can be gathered by pressure sensor III 80, temperature sensor III 85 occur for gaseous mixture
Degree signal is judged, while records the autoignition temperature of gaseous mixture under the pressure.Part exhaust after gaseous mixture spontaneous combustion can lead to
Cross ball valve XX95, threeway II 98, ball valve XXI97 enter tail gas sample detecting system 96, measure efficiency of combustion, CO, HC, NOx, carbon
Cigarette discharge etc..Another part exhaust can by ball valve XX95, threeway II 98 and ball valve XXII99 discharge.
The present apparatus is equally applicable to measurement fuel and lights fire behaviour, only need to ensure that the condition of spontaneous combustion does not occur for gaseous mixture
Under, the gaseous mixture in combustion chamber 86 is lighted by electrode II 92, the electric energy of electrode II 92 is by accumulator II 94, ignition coil
II 93 provide.Under conditions of relatively low to mixture strength, temperature uniformity requirement, gaseous mixture mixing chamber 55 equally can be with ignition
Burn the effect of room, therefore the equally igniters such as configuration electrode I 64, ignition coil I 65, accumulator I 66 of gaseous mixture mixing chamber 55.
In the present invention using fuel feed system, air supply system and diluent gas feed system realize Fuel-air-
Advantageous effect prepared by three component gaseous mixture of diluent gas, while can realize pluralities of fuel (the double combustions of the gas-liquid of such as methane-normal heptane
Three fuel of gas gas-liquid etc. of material, methane-propane-normal heptane) supply；It can equally be realized after similarly installing diluent gas feed system additional
The preparation of diluent gas gaseous mixture (such as argon-nitrogen, argon gas-helium, nitrogen-carbon dioxide).Likewise, need to only it cancel dilute
The supply of outgassing body achieves that two component gaseous mixture of Fuel-air supplies.Gaseous mixture can be heated to by the present invention by heating collar
The involuntary ignition characteristic of autoignition temperature research gaseous mixture；Can also external energy be injected to gaseous mixture by electrode and study gaseous mixture
Fire behaviour is lighted, therefore present invention acquirement can study gaseous mixture involuntary ignition without additional equipment and light fire behaviour
Advantageous effect.The more uniform advantageous effect in mixture strength field-temperature field can be obtained by configuring blender.
The embodiment of present invention described above, is not intended to limit the scope of the present invention..It is any in the present invention
Spiritual principles within made modifications, equivalent substitutions and improvements 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 test device of catching fire is lighted, mainly by gaseous fuel high-pressure air source
I (1), filter I (2), pressure reducing 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), pressure reducing 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), pressure reducing 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), AC power I (26), liquid fuel holding vessel (27), filter IV (28), liquid combustion
Material pump (29), fuel injector (30), pressure limiting valve I (31), blender I (32), motor I (33), temperature sensor I (34), fuel steam
Send out mixing chamber (35), pressure sensor 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), pressure reducing valve IV (49), diluent gas high-pressure air source (50), ball valve Ⅻ (51), temperature
Spend sensor II (52), heating wire II (53), pressure sensor II (54), gaseous mixture mixing chamber (55), ball valve XIII (56), mistake
Filter Ⅸ (57), vacuum pump II (58), pressure limiting valve II (59), blender II (60), motor II (61), AC power 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), pressure reducing 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 sensor III (80), heating wire III (81), ball valve XIX (82), filter XIII (83), vacuum pump IV (84), temperature pass
Sensor III (85), combustion chamber (86), pressure limiting valve III (87), blender III (88), motor III (89), AC power 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) compositions；Fuel-air-the 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, combustion chamber and exhaust sampling system composition；Gaseous fuel high-pressure air source I in fuel feed system
(1), filter I (2), pressure reducing 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), pressure reducing 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), pressure reducing 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) connect respectively with four-way I (19)
It connects, four-way I (19), ball valve VII (20), threeway I (21), flow controller IV (23), ball valve VIII (24) are sequentially connected, and high pressure is empty
Air pump (22) is connected with threeway I (21), and ball valve VIII (24) is connected with fuel vaporization mixing chamber (35), and heating wire I (37) is installed on
Fuel vaporization mixing chamber (35) is internal, and AC power I (26) is connected by continuously variable transformer I (25) with heating wire I (37),
Motor I (33) is connected with blender I (32), and blender I (32) is installed on fuel vaporization mixing chamber (35) inside, liquid fuel storage
It deposits tank (27), filter IV (28), liquid fuel feed pump (29), fuel injector (30), fuel vaporization mixing chamber (35) to be sequentially connected, limit
Pressure valve I (31), temperature sensor I (34), pressure sensor I (36) are installed on fuel vaporization mixing chamber (35), fuel vaporization
Mixing chamber (35), ball valve Ⅸ (38), filter V (39), vacuum pump I (40) are sequentially connected, fuel vaporization mixing 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 high-pressure air source (70) in air supply system, pressure reducing valve V (71), filter Ⅺ (72),
Ball valve XVI (73), flow controller VII (74), four-way II (45) are sequentially connected；Diluent gas is high in diluent gas feed system
Pressurized air source (50), pressure reducing valve IV (49), filter VIII (48), ball valve Ⅺ (47), flow controller VI (46), four-way II (45) according to
Secondary connection；Ball valve Ⅻ (51) is connected respectively with four-way II (45), gaseous mixture mixing chamber (55) in charge heating and hybrid system,
Temperature sensor II (52), pressure sensor II (54), pressure limiting valve II (59) are respectively arranged on gaseous mixture mixing chamber (55), are mixed
It closes gas mixing chamber (55), ball valve XIII (56), filter Ⅸ (57), vacuum pump II (58) to be sequentially connected, blender II (60) peace
Internal loaded on gaseous mixture mixing chamber (55), motor II (61) is connected with blender II (60), and heating wire II (53) is installed on mixing
Gas mixing chamber (55) is internal, and AC power II (62) is connected by continuously variable transformer II (63) with heating wire II (53), stores
Battery I (66), ignition coil I (65), electrode I (64), gaseous mixture mixing chamber (55) are sequentially connected, gaseous mixture mixing 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；In combustion chamber and exhaust sampling system
Ball valve XVIII (79) is connected respectively with four-way III (75), combustion chamber (86), pressure sensor III (80), temperature sensor III
(85), pressure limiting valve III (87) is connected respectively with combustion chamber (86), and blender III (88) is installed on combustion chamber (86) inside, motor III
(89) it is connected with blender III (88), heating wire III (81) is installed on combustion chamber (86) inside, and AC power III (90) passes through company
Continuous adjustable transformer III (91) is connected with heating wire III (81), accumulator II (94), ignition coil II (93), electrode II (92),
Combustion chamber (86) is sequentially connected, and combustion chamber (86), ball valve XIX (82), filter XIII (83), vacuum pump IV (84) connect successively
Connect, combustion chamber (86), ball valve XX (95), threeway II (98) are sequentially connected, threeway II (98) respectively with ball valve XXI (97), ball valve
XXII (99) connections, ball valve XXI (97) are 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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| 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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