CN206192965U - Fuel air diluent gas gas mixture fire behaviour testing arrangement - Google Patents

Abstract

The utility model relates to a fuel air diluent gas gas mixture fire behaviour testing arrangement, including fuel supply system, air supply system, diluent gas feed system, the gas mixture preheats and hybrid system, combustion chamber and exhaust sampling system, utilizes fuel supply system, air supply system and diluent gas feed system to realize fuel the air the beneficial effect of three component gas mixtures of diluent gas preparation, the by heating circle heats spontaneous combustion research fuel spontaneous combustion fire behaviour with the gas mixture and through the electrode lights the beneficial effect of fire behaviour to the outside energy of gas mixture injection research fuel, gain the gas mixture concentration field through the configuration agitator the comparatively even beneficial effect in temperature field.

Description

Fuel-air-diluent gas gaseous mixture fire behaviour test device

Technical field

The utility model belongs to fuel Study on Physico-chemical field, and in particular to a kind of Fuel-air-diluent gas mixing Gas fire behaviour test device, reaches the component gaseous mixture spontaneous combustion of acquisition Fuel-air-diluent gas three and lights 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 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 Than pressuring combustion ignition, combustion mixture temperature, pressure in compression stroke are quickly raised, when temperature, pressure reach gaseous mixture for contracting During involuntary ignition condition, the gaseous mixture involuntary ignition burning formed in delay period.Therefore spontaneous combustion and the point of combustion mixture are studied Combustion process optimization of the combustion fire behaviour to engine reduces oil consumption and pollutant emission is significant.First seted out in the modern times Passed through in motivation and be recycled for diluting combustion mixture frequently with waste gas, nitrogen oxides is reduced by reducing maximum combustion temperature NO_xDischarge, therefore consider that the component gaseous mixture of Fuel-air-diluent gas three has practical significance.With Abgasgesetz and oil consumption Regulation it is increasingly strict, many automakers, colleges and universities and research institutes are actively to double fuel even three fuel combustion process Studied, studying more has gasoline-diesel dual-fuel, diesel oil-natural gas double-fuel, Diesel Methanol double fuel, diformazan Ether-methyl alcohol double fuel, normal heptane-fuel combustion of isooctane-toluene three etc., may choosing in double fuel, three fuel combustion modes Use liquids and gases fuel.In summary, the test system studied fuel spontaneous combustion and lighting characteristic should have following spy Point：First, can quantify and prepare the component gaseous mixture of Fuel-air-diluent gas three, while Fuel-air-dilute can prepared Flexibly switch between the component gaseous mixture of outgassing body three and the component gaseous mixture of Fuel-air two；Second, can be fired with weight feed gas Material and liquid fuel；3rd, the concentration of the gaseous mixture of preparation, temperature should be uniform；4th, exhaust sampling system should be equipped with, so as to Analysis mixture combustion completeness and Soot Formation situation.

The content of the invention

The utility model provides a kind of Fuel-air-diluent gas gaseous mixture fire behaviour test device, and the device is 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 is constituted, and the utility model can be obtained and prepare the component gaseous mixture of Fuel-air-diluent gas three, weight feed gas The beneficial effect of more uniform three aspects in combustion mixture concentration field-temperature field after fuel and liquid fuel, heating.

The utility model is main to be controlled by gaseous fuel high-pressure air source I 1, filter I 2, pressure-reducing valve I 3, ball valve I 4, flow Device 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 may be used Voltage regulator/transformer I 25, AC power I 26, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector 30, limit Pressure valve I 31, agitator I 32, motor I 33, temperature sensor I 34, fuel vaporization hybrid chamber 35, pressure sensor I 36, heating wire I 37, ball valve Ⅸ 38, filter V 39, vavuum pump I 40, ball valve Ⅹ 41, filter VI 42, flow controller V 43, filter VII 44th, 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 hybrid chamber 55, ball valve XIII56, Filter Ⅸ 57, vavuum pump II 58, pressure limiting valve II 59, agitator II 60, motor II 61, AC power II 62, continuously adjustabe become Depressor II 63, electrode I 64, ignition coil I 65, battery I 66, ball valve XIV67, ball valve XV68, filter Ⅹ 69, air high pressure Source of the gas 70, pressure-reducing valve V 71, filter Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way III 75, ball valve XVII76, mistake Filter Ⅻ 77, vavuum pump III 78, ball valve XVIII79, pressure sensor III 80, heating wire III 81, ball valve XIX82, filter XIII83, vavuum pump IV 84, temperature sensor III 85, combustion chamber 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, battery 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 fire behaviour test device that the utility model is provided, it is mainly by fuel Feed system, air supply system, diluent gas feed system, charge heating and hybrid system, combustion chamber and exhaust sampling System is constituted；Gaseous fuel high-pressure air source I 1, filter I 2, pressure-reducing valve I 3, ball valve I 4, flow controller in fuel feed system I 5, ball valve II 6 is sequentially connected, gaseous fuel high-pressure air source II 7, filter II 8, pressure-reducing valve II 9, the control of ball valve III 10, flow Device 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, and ball valve II 6, ball valve IV 12, ball valve VI 18 are connected with four-way I 19 respectively, and four Logical 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 threeway I 21 Connection, 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, exchange Power supply I 26 is connected by continuously variable transformer I 25 with heating wire I 37, and motor I 33 is connected with agitator I 32, agitator I 32 Be installed on inside fuel vaporization hybrid chamber 35, liquid fuel holding vessel 27, filter IV 28, liquid fuel feed pump 29, fuel injector 30, Fuel vaporization hybrid chamber 35 is sequentially connected, and pressure limiting valve I 31, temperature sensor I 34, pressure sensor I 36 are installed on fuel vaporization On hybrid chamber 35, fuel vaporization hybrid chamber 35, ball valve Ⅸ 38, filter V 39, vavuum pump I 40 are sequentially connected, and fuel vaporization is mixed Conjunction 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, 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, pressure-reducing 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 sensor 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, Vavuum 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 The connection of device II 60 is mixed, heating wire II 53 is installed on inside gaseous mixture hybrid chamber 55, and AC power II 62 passes through continuously adjustabe transformation Device II 63 is connected with heating wire II 53, and battery 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, vavuum pump III 78 are sequentially connected；Ball valve in combustion chamber and exhaust sampling system XVIII79 is connected with four-way III 75, combustion chamber 86 respectively, pressure sensor III 80, temperature sensor III 85, III 87 points of pressure limiting valve It is not connected with combustion chamber 86, agitator III 88 is installed on inside combustion chamber 86, motor III 89 is connected with agitator III 88, heating wire III 81 are installed on inside combustion chamber 86, and AC power III 90 is connected by continuously variable transformer III 91 with heating wire III 81, are stored Battery II 94, ignition coil II 93, electrode II 92, combustion chamber 86 are sequentially connected, combustion chamber 86, ball valve XIX82, filter XIII83, vavuum 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 are connected, and ball valve XXI97 is connected with tail gas sample detecting system 96.

Brief description of the drawings

Fig. 1 is Fuel-air-diluent gas gaseous mixture fire behaviour test device

Specific embodiment

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 hybrid chamber 35, pressure sensor I 36, heating wire I 37, ball valve Ⅸ 38th, filter V 39, vavuum 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 hybrid chamber 55, ball valve XIII56, filter Ⅸ 57th, vavuum pump II 58, pressure limiting valve II 59, agitator II 60, motor II 61, AC power II 62, continuously variable transformer II 63, Electrode I 64, ignition coil I 65, battery 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, Vavuum 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, agitator III 88, motor III 89, AC power III 90, company Continuous adjustable transformer III 91, electrode II 92, ignition coil II 93, battery II 94, ball valve XX95, tail gas sample detecting system 96th, ball valve XXI97, threeway II 98 and ball valve XXII99 composition；The Fuel-air-diluent gas gaseous mixture fire behaviour is surveyed Trial assembly put it is main 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 1 in fuel feed system, 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 are sequentially connected, gaseous fuel high-pressure air source III 13, filter III 14, decompression Valve III 15, ball valve V 16, 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 distinguished It is connected 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 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 and mixes Close inside chamber 35, AC power I 26 is connected by continuously variable transformer I 25 with heating wire I 37, motor I 33 and agitator I 32 Connection, agitator I 32 is installed on inside fuel vaporization hybrid chamber 35, liquid fuel holding vessel 27, filter IV 28, liquid fuel Pump 29, fuel injector 30, fuel vaporization hybrid chamber 35 are sequentially connected, pressure limiting valve I 31, temperature sensor I 34, pressure sensor I 36 It is installed on fuel vaporization hybrid chamber 35, fuel vaporization hybrid chamber 35, ball valve Ⅸ 38, filter V 39, vavuum pump I 40 connect successively Connect, fuel vaporization hybrid chamber 35, ball valve Ⅹ 41, filter VI 42, flow controller V 43 are sequentially connected；Flow controller V 43rd, filter VII 44, four-way II 45 are sequentially connected；Air high-pressure air source 70, pressure-reducing valve V 71, filter in air supply system Ⅺ 72, ball valve XVI73, flow controller VII 74, four-way II 45 are sequentially connected；Diluent gas high-pressure air source in air supply system 50th, pressure-reducing valve IV 49, filter VIII 48, ball valve Ⅺ 47, flow controller VI 46, four-way II 45 are sequentially connected；Charge heating And ball valve Ⅻ 51 is connected with four-way II 45, gaseous mixture hybrid chamber 55 respectively in hybrid system, temperature sensor II 52, pressure sensing Device 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, mistake Filter Ⅸ 57, vavuum pump II 58, pressure limiting valve II 59 are sequentially connected, and agitator II 60 is installed on inside gaseous mixture hybrid chamber 55, electricity Machine II 61 is connected with agitator II 60, and heating wire II 53 is installed on inside gaseous mixture hybrid chamber 55, and AC power II 62 is by connecting Continuous adjustable transformer II 63 is connected with heating wire II 53, battery I 66, ignition coil I 65, electrode I 64, gaseous mixture hybrid chamber 55 It is 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, vavuum pump III 78 are sequentially connected；Combustion chamber and exhaust sampling system Ball valve XVIII79 is connected with four-way III 75, combustion chamber 86 respectively in system, pressure sensor III 80, temperature sensor III 85, pressure limiting Valve III 87 is connected with combustion chamber 86 respectively, and agitator III 88 is installed on inside combustion chamber 86, and motor III 89 connects with agitator III 88 Connect, heating wire III 81 is installed on inside combustion chamber 86, AC power III 90 is by continuously variable transformer III 91 and heating wire III 81 connections, battery II 94, ignition coil II 93, electrode II 92, combustion chamber 86 be sequentially connected, combustion chamber 86, ball valve XIX82, Filter XIII83, vavuum pump IV 84 are sequentially connected, and combustion chamber 86, ball valve XX95, threeway II 98 are sequentially connected, II 98 points of threeway It is not connected with ball valve XXI97, ball valve XXII99, ball valve XXI97 is connected with tail gas sample detecting system 96.

Technical solutions of the utility model are further elaborated below in conjunction with accompanying drawing 1：

Embodiment：Determine autoignition temperature of the component gaseous mixture of normal heptane+methane air-argon gas three under 20bar, positive heptan The molar fraction of alkane, methane, air and argon gas is respectively A%, B%, C% and D%.

Fuel is normal heptane-methane double fuel, is respectively liquid and fuel gas, 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).The storing methane of gaseous fuel high-pressure air source I 1 fires Material, opens ball valve I 4, flow controller I 5 and ball valve II 6, and methane fuel 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 incoming fuel evaporation hybrid chamber 35, ball valve Ⅸ 38 is opened, will by vavuum pump I 40 Fuel vaporization hybrid chamber 35 is vacuumized, it is ensured that fuel is accurately supplied.Open ball valve VII 20, flow controller IV 23 and ball valve VIII 24, methane flows into 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, the metered injection of fuel injector 30 to fuel In hair hybrid chamber 35, ball valve VIII 24 and ball valve Ⅹ 41 are now closed, then a system of remaining silent is constituted in fuel vaporization hybrid chamber 35. Gaseous mixture is preheated by the power for adjusting continuously variable transformer I 25 and making heating wire I 37 certain, it is therefore an objective to make to be ejected into Normal heptane droplet carburation by evaporation in fuel vaporization hybrid chamber 35, heating gaseous mixture 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, motor I 33 is then shut off, stops stirring.Ball valve Ⅻ 51, ball valve XV68, ball valve XX95 are simultaneously closed off, ball valve is opened XIII56, ball valve XIV67, ball valve XVII76, ball valve XVIII79, ball valve XIX82, using vavuum pump I 40, the and of vavuum pump III 78 Vavuum pump IV 84 vacuumizes combustion chamber 86, gaseous mixture hybrid chamber 55, it is ensured that fuel, air, diluent gas weight feed.Take out true Vavuum pump III 78 and vavuum pump IV 84 are closed after sky, ball valve Ⅻ 51, ball valve XIII56, ball valve XV68, ball valve XX95, ball valve is closed 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 hybrid 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 enters gaseous mixture hybrid chamber 55, and air mass flow passes through the precise control of 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 enter gaseous mixture hybrid chamber 55, and argon flow amount passes through the precise control of flow controller VI 46.Fuel, air, diluent gas are fixed Amount is fed into keeping after gaseous mixture hybrid chamber 55 ball valve Ⅻ 51, ball valve XIII56 and ball valve XIV67 make gaseous mixture hybrid 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 Release gas mixture to be preheated, mixture temperature is reached 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 hybrid chamber 55.Agitator II 60 is started by motor II 61, makes mixing Mixture strength and temperature in gas hybrid chamber 55 is uniform, is then shut off motor II 61 and stops stirring.Open ball valve XIV67, ball Valve XVIII79, gaseous mixture enters 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, and agitator III 88 is started 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 gaseous mixture occurs spontaneous combustion, pressure, temperature that gaseous mixture spontaneous combustion can be gathered by pressure sensor III 80, temperature sensor III 85 Degree signal is judged, while recording the autoignition temperature of gaseous mixture under the pressure.Part exhaust after gaseous mixture spontaneous combustion can lead to Ball valve XX95, threeway II 98, ball valve XXI97 are crossed into tail gas sample detecting system 96, efficiency of combustion, CO, HC, NO is measured_x, carbon Cigarette discharge etc..Another part exhaust can be discharged by ball valve XX95, threeway II 98 and ball valve XXII99.

The present apparatus is 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 combustion chamber 86 is lighted by electrode II 92, the electric energy of electrode II 92 is by battery II 94, ignition coil II 93 provide.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 the equally igniter such as configuration electrode I 64, ignition coil I 65, battery I 66 of gaseous mixture hybrid chamber 55.

In the utility model using fuel feed system, air supply system and diluent gas feed system realize fuel- Beneficial effect prepared by the component gaseous mixture of air-diluent gas three, while pluralities of fuel (such as gas of methane-normal heptane can be realized Liquid double fuel, fuel of gas gas-liquid three of methane-propane-normal heptane etc.) supply；Similarly install same after diluent gas feed system additional The preparation of diluent gas gaseous mixture (such as argon-nitrogen, argon gas-helium, nitrogen-carbon dioxide) can be realized.Likewise, only needing Cancel diluent gas supply and achieve that the component gaseous mixture of Fuel-air two is supplied.The utility model be able to will be mixed by heating collar Close the involuntary ignition characteristic that gas is heated to autoignition temperature research gaseous mixture；External energy can also be injected to gaseous mixture by electrode Research gaseous mixture lights fire behaviour, therefore the utility model is obtained and can just study gaseous mixture involuntary ignition without additional equipment With light fire behaviour beneficial effect.Mixture strength field-temperature field can be obtained by configuring agitator more uniformly has Beneficial effect.

The above implementation method of the present utility model, does not constitute the restriction to the utility model protection domain.It is any Done modification, equivalent and improvement etc., should be included in the utility model within spiritual principles of the present utility model Claims within.

Claims (1)

1. Fuel-air-diluent gas gaseous mixture fire behaviour test device, its 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 are high Pressurized 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), the combustion of filter IV (28), liquid Material pump (29), fuel injector (30), pressure limiting valve I (31), agitator I (32), motor I (33), temperature sensor I (34), fuel steam Hair hybrid chamber (35), pressure sensor I (36), heating wire I (37), ball valve Ⅸ (38), filter V (39), vavuum 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 Degree sensor II (52), heating wire II (53), pressure sensor II (54), gaseous mixture hybrid chamber (55), ball valve XIII (56), mistake Filter Ⅸ (57), vavuum pump II (58), pressure limiting valve II (59), agitator II (60), motor II (61), AC power II (62), Continuously variable transformer II (63), electrode I (64), ignition coil I (65), battery 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), vavuum pump III (78), ball valve XVIII (79), Pressure sensor III (80), heating wire III (81), ball valve XIX (82), filter XIII (83), vavuum pump IV (84), temperature are passed Sensor III (85), combustion chamber (86), pressure limiting valve III (87), agitator III (88), motor III (89), AC power III (90), company Continuous adjustable transformer III (91), electrode II (92), ignition coil II (93), battery 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；Fuel-air-the diluent gas Gaseous mixture fire behaviour test device is main by fuel feed system, air supply system, diluent gas feed system, gaseous mixture Preheating and hybrid system, combustion chamber and exhaust sampling system composition；Gaseous fuel high-pressure air source I (1), mistake in fuel feed system 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 gas Source II (7), filter II (8), pressure-reducing valve II (9), ball valve III (10), flow controller II (11), ball valve IV (12) connect successively Connect, 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) is sequentially connected, and ball valve II (6), ball valve IV (12), ball valve VI (18) are connected with four-way I (19) respectively, and four Logical I (19), ball valve VII (20), threeway I (21), flow controller IV (23), ball valve VIII (24) are sequentially connected, pressure-air pump (22) it is connected with threeway I (21), ball valve VIII (24) is connected with fuel vaporization hybrid chamber (35), heating wire I (37) is installed on fuel Evaporation hybrid 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 agitator I (32), and agitator I (32) is installed on fuel vaporization hybrid chamber (35) inside, liquid fuel holding vessel (27), filter IV (28), liquid fuel feed pump (29), fuel injector (30), fuel vaporization hybrid chamber (35) are sequentially connected, pressure limiting valve I (31), temperature sensor I (34), pressure sensor I (36) are installed on fuel vaporization hybrid chamber (35), fuel vaporization mixing Chamber (35), ball valve Ⅸ (38), filter V (39), vavuum 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 high-pressure air source (70), pressure-reducing valve V (71), filter Ⅺ (72), ball valve in air supply system XVI (73), flow controller VII (74), four-way II (45) are sequentially connected；Diluent gas high-pressure air source in air supply system (50), pressure-reducing valve IV (49), filter VIII (48), ball valve Ⅺ (47), flow controller VI (46), four-way II (45) connect successively Connect；Ball valve Ⅻ (51) is connected with four-way II (45), gaseous mixture hybrid chamber (55) respectively 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 hybrid chamber (55), gaseous mixture Hybrid chamber (55), ball valve constitute XIII (56), filter Ⅸ (57), vavuum pump II (58), pressure limiting valve II (59) and 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, AC power II (62) is by continuously variable transformer II (63) and heating wire II (53) connection, battery I (66), ignition coil I (65), electrode I (64), gaseous mixture hybrid chamber (55) are sequentially connected, and mix 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), vavuum pump III (78) are sequentially connected；Combustion chamber and row Ball valve XVIII (79) is connected with four-way III (75), combustion chamber (86) respectively in gas sampling system, pressure sensor III (80), temperature Degree sensor III (85), pressure limiting valve III (87) are connected with combustion chamber (86) respectively, and agitator III (88) is installed on combustion chamber (86) Inside, motor III (89) is connected with agitator III (88), and heating wire III (81) is installed on combustion chamber (86) inside, AC power III (90) it is connected with heating wire III (81) by continuously variable transformer III (91), battery II (94), ignition coil II (93), electricity Pole II (92), combustion chamber (86) are sequentially connected, combustion chamber (86), ball valve XIX (82), filter XIII (83), vavuum pump IV (84) be sequentially connected, 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) is connected with tail gas sample detecting system (96).