CN101975663A - Fuel consumption assessment device for fuel cell vehicle - Google Patents
Fuel consumption assessment device for fuel cell vehicle Download PDFInfo
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- CN101975663A CN101975663A CN 201010520761 CN201010520761A CN101975663A CN 101975663 A CN101975663 A CN 101975663A CN 201010520761 CN201010520761 CN 201010520761 CN 201010520761 A CN201010520761 A CN 201010520761A CN 101975663 A CN101975663 A CN 101975663A
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- 239000000446 fuel Substances 0.000 title claims abstract description 89
- 238000005303 weighing Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 144
- 239000001257 hydrogen Substances 0.000 claims description 73
- 229910052739 hydrogen Inorganic materials 0.000 claims description 73
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 69
- 238000003860 storage Methods 0.000 claims description 22
- 238000012360 testing method Methods 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 238000010926 purge Methods 0.000 claims description 10
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000011056 performance test Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 19
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 150000002431 hydrogen Chemical class 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000006837 decompression Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a fuel consumption assessment device for a fuel cell vehicle, belonging to the technical field of new energy vehicle performance test and assessment. The fuel consumption assessment device is used for assessing the fuel consumption and economical efficiency of the fuel cell vehicle, and comprises a gas source bottle rack and a pipeline system connected with the gas source bottle rack, wherein the pipeline system is connected with the fuel cell vehicle; the gas source bottle rack comprises a gas bottle bracket, a temperature sensor and a pressure sensor; the gas bottle bracket is used for accommodating gas bottles, and the temperature sensor and the pressure sensor are used for measuring the gas in the gas bottles, and the fuel consumption is calculated based on the measuring results of the temperature sensor and the pressure sensor; the fuel consumption assessment device also comprises a weighing device; and the weighing device comprises a windproof and shockproof tank body, a precision balance and a balance weighing auxiliary device, and is used for carrying out fine measurement on the fuel consumption. The fuel consumption assessment device can realize measuring the fuel consumption of heavy type fuel cell vehicles and assessing the fuel economy of the heavy type fuel cell vehicles.
Description
Technical field
The invention belongs to new-energy automobile performance test and assessment technique field, relate in particular to a kind of fuel consumption assessment device of fuel cell car.
Background technology
Along with domestic fuel cell car research work deeply, carrying out of using of the continuous expansion of demonstration range of operation and lease, the evaluation method of fuel cell car performance has been proposed more and more urgent requirement.And the accurate measurement of Fuel Consumption and economy evaluation are in crucial status in fuel cell car performance evaluation.Because the singularity of hydrogen fuel, fuel consumption measuring method that the traditional combustion engine automobile adopted such as carbon balance method etc. also are not suitable for hydrogen fuel, therefore are necessary to study the fuel consumption quantity measuring method that is applicable to hydrogen.The U.S., Japan and each European big automobile manufacturing company, relevant government department launch research work to the method that the hydrogen consumption is measured, and have obtained some interim achievements, and China has also carried out a lot of researchs in this respect.Clearly fuel-cell vehicle has been classified as the emphasis of China's electric automobile development in country's " 863 Program ".
At present, still under test at the method that the fuel cell car economy is estimated, in this research field, the test method that gains universal acceptance comprises quality weight method, temperature, pressure method and flowmeter method.
PRD among the present invention is a pressure relief device; when cause the gas cylinder internal pressure to rise owing to reasons such as gas cylinder are heated; in order to protect the safety of gas cylinder; the rupture disk of PRD can be when pressure reaches certain numerical value; automatically explosion; relief pressure is because hydrogen is inflammable gas, so the hydrogen that discharges needs rationally to collect, handle.
Summary of the invention
The objective of the invention is to,, be used for the Fuel Consumption and the economy of estimating fuel battery automobile for being that the battery car of fuel provides a kind of fuel consumption assessment device with hydrogen.
Technical scheme is, a kind of fuel consumption assessment device of fuel cell car is characterized in that described assessment device comprises source of the gas bottle stand 1 and the pipe system 2 that links to each other with described source of the gas bottle stand, and described pipe system 2 links to each other with fuel cell car 3;
Described source of the gas bottle stand 1 comprises gas cylinder support 4, first collecting pipe 5, second collecting pipe 6 and the 3rd gases at high pressure flexible pipe 9 of placing gas cylinder, and described gas cylinder support 4 comprises the first gases at high pressure flexible pipe 7, the second gases at high pressure flexible pipe 8, pressure relief device PRD 10, the first gas cylinder temperature sensor 14, the first storage pressure sensor 15, the second gas cylinder temperature sensor 16 and the second storage pressure sensor 17;
Described pipe system 3 comprises that air source inlet 18, first gas stream outlet, 19, second gas stream outlet 20, gas purging export 21, are with the valve 22 of pneumatic actuator, the first-class flow direction to selection valve 23, first reduction valve 24, safety valve 25, on-off valve 30, second to select valve 31, second reduction valve 32, the 3rd flow direction selection valve 35 and hydrogen filter 36;
The described first gases at high pressure flexible pipe, 7 one ends link to each other with first collecting pipe 5, and the other end links to each other with preceding stifled 12 of gas cylinder 11; The second gases at high pressure flexible pipe, 8 one ends link to each other with pressure relief device PRD 10, and the other end links to each other with back stifled 13 of gas cylinder 11; One end of the 3rd gases at high pressure flexible pipe 9 links to each other with first collecting pipe 5, and the other end links to each other with the air source inlet 18 of pipe system 3; Pressure relief device PRD 10 also links to each other with second collecting pipe 8; Second collecting pipe 8 links to each other with the air channel of testing laboratory;
The described first gas cylinder temperature sensor 14 and the first storage pressure sensor 15 are installed in the preceding of gas cylinder 11 and block up on 12;
The described second gas cylinder temperature sensor 16 and the second storage pressure sensor 17 are installed in the back of gas cylinder 11 and block up on 13;
Described air source inlet 18 links to each other with hydrogen filter 36 with the 3rd gases at high pressure flexible pipe 9 respectively;
Described hydrogen filter 36 links to each other with the valve 22 of air source inlet 18 with the band pneumatic actuator respectively;
The valve 22 of described band pneumatic actuator hydrogen filter 36 respectively links to each other to selection valve 23 with first-class;
Described first-class to a road linking to each other with first reduction valve 24 of selecting valve 23, another road links to each other with safety valve first port 26;
Described first reduction valve 24 links to each other with safety valve second port 27;
Described safety valve second port 27 links to each other with on-off valve second port 29;
Described on-off valve second port 29 and second flows to selects valve 31 to link to each other;
Described on-off valve first port 28 links to each other with gas purging outlet 21 with safety valve first port 26 respectively;
Described second flow to select a road of valve 31 to link to each other with second reduction valve, first port 33, and another road links to each other with second reduction valve, second port 34;
Described second reduction valve, second port 34 and the 3rd flows to selects valve 35 to link to each other;
A road of described the 3rd flow direction selection valve 35 exports 19 with first gas stream and links to each other, and another road links to each other with second gas stream outlet 20;
Described first gas stream outlet 19 links to each other with fuel cell car aerating inlet;
Described second gas stream outlet 20 links to each other with mass flowmeter 37;
Between the valve 22 of described hydrogen filter 36 and band pneumatic actuator, between first reduction valve 24 and safety valve second port 27, between second reduction valve, second port 34 and the 3rd flow direction selection valve 35 the first mechanical compression table 38, the second mechanical compression table 39 and the 3rd mechanical compression table 40 are installed respectively;
Described first-class to selecting the 24 installation first pipeline temperature sensor 41 and first line-pressure sensor 42 between the valve 23 and first reduction valve;
Described on-off valve second port 29 and second flows to selects to install between the valve 31 the second pipeline temperature sensor 43 and second line-pressure sensor 44.
Described assessment device also comprises the quality weighing device, and described quality weighing device comprises windproof shockproof casing 45, precision balance 46, the balance servicing unit 47 of weighing.
The described first gas cylinder temperature sensor 14 links to each other with computing machine respectively with the first storage pressure sensor 15, and the described second gas cylinder temperature sensor 16 links to each other with computing machine respectively with the second storage pressure sensor 17.
Described gas cylinder 11 adopts the aluminium alloy inner bag and twines coating with carbon fiber.
Effect of the present invention is, utilize the fuel consumption assessment device of fuel cell car provided by the invention, cooperate heavy fuel battery car drum dynamometer, can finish for the measurement of heavy fuel battery car fuel consumption and the appraisal of fuel economy, be fuel cell car technical research and universal providing safeguard.
Description of drawings
Fig. 1 is the fuel consumption assessment device structural representation of fuel cell car;
Fig. 2 is source of the gas bottle stand and gas cylinder connection diagram;
Fig. 3 is the pipe system structural drawing;
Fig. 4 is a quality weighing device structural representation;
Fig. 5 is the number of element types tabulation that the fuel consumption assessment device of fuel cell car uses;
Number in the figure:
1-source of the gas bottle stand, the 2-pipe system, the 3-fuel cell car, 4-gas cylinder support, 5-first collecting pipe, 6-second collecting pipe, the 7-first gases at high pressure flexible pipe, the 8-second gases at high pressure flexible pipe, 9-the 3rd gases at high pressure flexible pipe, 10-pressure relief device PRD, stifled before the 11-gas cylinder, 12-, stifled behind the 13-, the 14-first gas cylinder temperature sensor, the 15-first storage pressure sensor, the 16-second gas cylinder temperature sensor, the 17-second storage pressure sensor, the 18-air source inlet, the outlet of 19-first gas stream, the outlet of 20-second gas stream, the outlet of 21-gas purging, the valve of 22-band pneumatic actuator, 23-is first-class to selecting valve, 24-first reduction valve, 25-safety valve, 26-safety valve first port, 27-safety valve second port, 28-on-off valve first port, 29-on-off valve second port, the 30-on-off valve, 31-second flows to and selects valve, 32-second reduction valve, 33-second reduction valve first port, 34-second reduction valve second port, 35-the 3rd flows to and selects valve, 36-hydrogen filter, 37-mass flowmeter, the 38-first mechanical compression table, the 39-second mechanical compression table, 40-the 3rd mechanical compression table, the 41-first pipeline temperature sensor, 42-first line-pressure sensor, the 43-second pipeline temperature sensor, 44-second line-pressure sensor, the windproof shockproof casing of 45-, 46-precision balance, the 47-balance servicing unit of weighing.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment is elaborated.Should be emphasized that following explanation only is exemplary, rather than in order to limit the scope of the invention and to use.
Embodiment
Fig. 1 is the fuel consumption assessment device structural representation of fuel cell car, and among Fig. 1, the fuel consumption assessment device of fuel cell car comprises source of the gas bottle stand 1 and the pipe system 2 that links to each other with the source of the gas bottle stand, and pipe system 2 links to each other with fuel cell car 3.Wherein, source of the gas bottle stand 1 and pipe system 2 in the assessment device are removable, and can distinguish separately and use, and have improved the dirigibility of measurement and the compatibility of device.
Fig. 2 is source of the gas bottle stand and gas cylinder connection diagram.Among Fig. 2, source of the gas bottle stand 1 comprises gas cylinder support 4 (see figure 1)s, first collecting pipe 5, second collecting pipe 6 and the 3rd gases at high pressure flexible pipe 9 of placing gas cylinder.Source of the gas bottle stand 1 should have at least 2 the gas cylinder supports 4 that can place gas cylinder, and wherein 1 gas cylinder support is used to place hydrogen cylinder, and 1 is used to place nitrogen cylinder.In the present embodiment, source of the gas bottle stand 1 comprises 6 gas cylinder supports 4, and wherein, 5 are used to place hydrogen cylinder, and 1 is used to place nitrogen cylinder.5 gas cylinder numbers are according to the required hydrogen supply design of the test loop of vehicle load maximum in the world herein.Different experimental provisions can calculate required hydrogen quality according to the actual requirements at different tested vehicles, determines required hydrogen cylinder number.In addition, because hydrogen is a kind of flammable explosive gas,, run into the danger that naked light just has blast in air if the density of hydrogen of sneaking into reaches certain numerical value.For this reason, before test, needs use nitrogen will be tested the air emptying in the pipeline, thereby prevent hydrogen and air mixed, thus the safety of warranty test process.
Among Fig. 2, every gas cylinder support 4 comprises the first gases at high pressure flexible pipe 7, the second gases at high pressure flexible pipe 8, pressure relief device PRD10, the first gas cylinder temperature sensor 14, the first storage pressure sensor 15, the second gas cylinder temperature sensor 16 and the second storage pressure sensor 17.Gas cylinder 11 is connected specifically with gas cylinder support 4: the first gases at high pressure flexible pipe, 7 one ends link to each other with first collecting pipe 5, and the other end links to each other with preceding stifled 12 of gas cylinder 11.One end of the 3rd gases at high pressure flexible pipe 9 links to each other with first collecting pipe 5, and the other end links to each other with the air source inlet 18 of pipe system 2.Because 1 source of the gas bottle stand in the present embodiment can be placed 5 hydrogen cylinders, and in the process of the test, may need 5 hydrogen cylinders jointly for fuel cell car 3 provides fuel,, make the hydrogen of each hydrogen cylinder enter pipe system 2 by first collecting pipe 5 so need to use first collecting pipe 5.
The second gases at high pressure flexible pipe, 8 one ends link to each other with pressure relief device PRD 10, and the other end links to each other with back stifled 13 of gas cylinder 11; Pressure relief device PRD 10 also links to each other with second collecting pipe 6; Second collecting pipe 6 links to each other with the air channel of testing laboratory.The effect of pressure relief device PRD 10 is, when the pressure in the gas cylinder 11 is excessive, can discharge pressure of the inside of a bottle by the mode of release hydrogen, avoids causing danger.But,, need safe disposal because hydrogen is inflammable gas.Therefore, the hydrogen that discharges need be passed through second collecting pipe 6, import the air channel of testing laboratory, safety is discharged.
In the present embodiment, the first gas cylinder temperature sensor 14 and the first storage pressure sensor 15 are installed on the preceding of gas cylinder 11 respectively and block up 12, are used for the temperature and the pressure of hydrogen in the hydrogen cylinder of experiment with measuring front and back.The second gas cylinder temperature sensor 16 and the second storage pressure sensor 17 are installed on the back stifled 13 of gas cylinder 11 respectively, and whether the temperature and the pressure that are used to measure hydrogen in the hydrogen cylinder reach safe extreme value.In addition, the first gas cylinder temperature sensor 14 can link to each other with computing machine respectively with the first storage pressure sensor 15, and the second gas cylinder temperature sensor 16 also can link to each other with computing machine respectively with the second storage pressure sensor 17.During connection, can adopt socket, connector, the fast socket, connector of multicore, multi-core connector seat or essential safety cable, the sensor is connected to computing machine, thereby the temperature and pressure data of measuring are conveyed into computing machine, and, utilize the quality of hydrogen in the hydrogen cylinder of COMPUTER CALCULATION test front and back according to the temperature, pressure method.
Fig. 3 is the pipe system structural drawing, among Fig. 3, pipe system 2 comprises that air source inlet 18, first gas stream outlet, 19, second gas stream outlet 20, gas purging export 21, are with the valve 22 of pneumatic actuator, the first-class flow direction to selection valve 23, first reduction valve 24, safety valve 25, on-off valve 30, second to select valve 31, second reduction valve 32, the 3rd flow direction selection valve 35 and hydrogen filter 36.
Air source inlet 18 links to each other with hydrogen filter 36 with the 3rd gases at high pressure flexible pipe 9 respectively.The 3rd gases at high pressure flexible pipe 9 can pass through quick connector, is connected with air source inlet 18.Hydrogen in the hydrogen cylinder is sent into air source inlet 18 by the 3rd gases at high pressure flexible pipe 9, and hydrogen enters pipe system 2 thus.After hydrogen entered pipe system, hydrogen filter 36 filtered the impurity such as dust that exist in the hydrogen, avoids fuel cell car 3 is impacted.Hydrogen filter 36 also links to each other with the valve 22 of band pneumatic actuator.The valve 22 of band pneumatic actuator is realized the break-make control to hydrogen supply main line under the control of the compressed air gas source in the external world.The valve 22 of band pneumatic actuator also links to each other to selection valve 23 with first-class.First-class to a road linking to each other with first reduction valve 24 of selecting valve 23, open in process of the test on this road.First-class another road to selection valve 23 links to each other with safety valve first port 26.Safety valve second port 27 links to each other with on-off valve second port 29; On-off valve second port 29 and second flows to selects valve 31 to link to each other.First port 28 of on-off valve links to each other with gas purging outlet 21 with first port 26 of safety valve respectively.At the trial, first-class to select valve 23 to open to link to each other with first reduction valve 24 a road, close link to each other with safety valve first port 26 a road.The effect of safety valve 25 is, in process of the test, it is too high to open one tunnel Hydrogen Vapor Pressure, in the time of may causing dangerous the generation, automatically the hydrogen in the pipeline is got rid of pipe systems by gas purging outlet 21.The effect of on-off valve 30 is that when safety valve 25 lost efficacy, manual unlocking on-off valve 30 was emitted the hydrogen of opening one tunnel from gas purging outlet 21.
Second flow to select a road of valve 31 to link to each other with second reduction valve, first port 33, and another road links to each other with second reduction valve, second port 34.Second reduction valve, second port 34 and the 3rd flows to selects valve 35 to link to each other.A road of the 3rd flow direction selection valve 35 exports 19 with first gas stream and links to each other, and another road links to each other with second gas stream outlet 20.First gas stream outlet 19 links to each other with fuel cell car aerating inlet, and second gas stream exports 20 and links to each other with mass flowmeter 37.Because the fuel cell car of actual production has two classes, a class is the high-pressure type fuel cell car, and another kind of is the low-pressure type fuel cell car, and both differences are to require different to the pressure of sources of hydrogen.Therefore, pipe system of the present invention provides second to flow to selection valve 31, when the high-pressure type fuel cell car is tested, by second flow to select valve 31 to open to link to each other with second reduction valve, first port 33 a road, close another road, thereby make 32 pairs of high pressure hydrogen decompressions of second reduction valve.When the low-pressure type fuel cell car is tested, by second flow to select valve 31 to open to link to each other with second reduction valve, second port 34 a road, close another road.In test,, then the 3rd flow to and select valve 35 to open and first gas stream outlet 19 links to each other a road, close another road if adopt fuel cell car to measure hydrogen gas consumption; When needs take the flowmeter method to measure the consumption of fuel cell car, then the 3rd flow to and select valve 35 to open and second gas stream outlet 20 links to each other a road, close another road.
Between the valve 22 of hydrogen filter 36 and band pneumatic actuator the first mechanical compression table 38 is installed, the pressure between the valve 22 that is used to measure air source inlet 18 and be with pneumatic actuator.The second mechanical compression table 37 is installed between first reduction valve 24 and safety valve second port 27, is used to measure decompression line pressure afterwards.Second reduction valve, second port 34 and the 3rd flows to be selected between the valve 35 the 3rd mechanical compression table 40 to be installed respectively, is used to measure the line pressure to after the hydrogen decompression of high-pressure type fuel cell car.
First-class to selecting that the first pipeline temperature sensor 41 and first line-pressure sensor 42 are installed between the valve 23 and first reduction valve 24.On-off valve second port 29 and second flows to selects to install between the valve 31 the second pipeline temperature sensor 43 and second line-pressure sensor 44.Above-mentioned two groups of pipeline temperature sensors and line-pressure sensor are respectively applied for the temperature and pressure of the hydrogen in the pipeline of measuring after 24 pressurizations of first reduction valve.
Assessment device provided by the invention can also comprise the quality weighing device, and this quality weighing device is used for the quality of the hydrogen cylinder before and after the weighing test, by the quality acquisition hydrogen gas consumption of the hydrogen cylinder before and after the test.Fig. 4 is a quality weighing device structural representation, and among Fig. 4, the quality weighing device comprises windproof shockproof casing 45, precision balance 46, the balance servicing unit 47 of weighing.Windproof shockproof casing 45 is the cast iron structure, realizes wind-shielding function by sealing, by four jiaos of shockproof wheels of adopting, realizes shockproof function.Weigh servicing unit 47 of balance adopts worm and gear-cam-push rod structure, effectively protects precision balance 46 to exempt from the infringement that accidental operation causes.The precision of precision balance 46 is 0.1g, and maximum range is 64Kg, in order to weighing gas cylinder quality.Before and after the process of the test, hydrogen cylinder should be unloaded from source of the gas bottle stand 1, be placed on and carry out weighing on the precision balance 46.The quality weighing device just can adopt when perhaps needing to verify the accuracy of temperature, pressure method when test accuracy is had relatively high expectations.
It is as follows to use assessment device of the present invention to measure the detailed process of economy of the Fuel Consumption of fuel cell car and estimating fuel battery automobile:
At first select each parts of using in the assessment device with reference to Fig. 5.Then, connect pipeline on the source of the gas bottle stand with reference to Fig. 2.Next, nitrogen cylinder is connected with the gas purging outlet 21 of pipe system 3, pipe system is purged deaeration.After treating the air emptying in the pipe system, be provided with first-class respectively to selecting valve 23, second to flow to the flow direction of selecting valve 31 and the 3rd to flow to selection valve 35.Open first-class to select that valve 23 links to each other with first reduction valve 24 a road, close another road.According to the employed fuel type of fuel cell car (high-pressure type fuel or low-pressure type fuel) in the test, open second and flow to a road of selection valve 33, close another road.Open the 3rd flow to select the valve 35 and first gas stream export 19 be connected a road, close another road.At last, the outlet 19 of first gas stream is linked to each other with the aerating inlet of fuel cell car, again the 3rd gases at high pressure flexible pipe 9 is linked to each other with air source inlet 18 by fast interface.Fuel cell car carries out " Chinese typical urban public transport circulation " test on breadboard drum dynamometer.First reduction valve 24 is with the high pressure hydrogen of 15～20MPa in the hydrogen cylinder, the 3～5Mpa that reduces pressure; The first pipeline temperature sensor 41, first line-pressure sensor 42, the first pipeline temperature sensor 43, first line-pressure sensor 44 detect hydrogen temperature, the pressure state of first reduction valve, 24 front and back; Second reduction valve 32 inserts under the control of second flow direction selection valve 31 in the hydrogen supply main line according to the test needs, and 0.8～1.2MPa will reduce pressure through the hydrogen secondary of 3～5Mpa behind first reduction valve 24; Observe the pressure of hydrogen in the hydrogen supply main line by the 3rd mechanical compression table 40.Utilize the first gas cylinder temperature sensor of installing in the source of the gas bottle stand 14, the state parameter of the hydrogen cylinder internal hydrogen that the first storage pressure sensor 15 is gathered calculates the consumption of hydrogen in the process of the test, perhaps can the service property (quality) meausring apparatus measures the consumption of hydrogen.In the test that present embodiment provides, fuel cell car is heavy fuel battery city carriage, quality is 15500Kg, base ratio is 6.83, and the speed reduction unit speed ratio is 2.56, and vehicle wheel roll radius is 0.51m, front face area is 8m2, coefficient of air resistance is 0.75Ns2/m4, and the kinematic train total efficiency is 0.88, and its hydrogen consumption quality is 1125.85g.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1. the fuel consumption assessment device of a fuel cell car is characterized in that described assessment device comprises source of the gas bottle stand (1) and the pipe system (2) that links to each other with described source of the gas bottle stand, and described pipe system (2) links to each other with fuel cell car (3);
Described source of the gas bottle stand (1) comprises gas cylinder support (4), first collecting pipe (5), second collecting pipe (6) and the 3rd gases at high pressure flexible pipe (9) of placing gas cylinder, and described gas cylinder support (4) comprises the first gases at high pressure flexible pipe (7), the second gases at high pressure flexible pipe (8), pressure relief device PRD (10), the first gas cylinder temperature sensor (14), the first storage pressure sensor (15), the second gas cylinder temperature sensor (16) and the second storage pressure sensor (17);
Described pipe system (3) comprises that air source inlet (18), first gas stream outlet (19), second gas stream outlet (20), gas purging export the valve (22) of (21), band pneumatic actuator, the first-class flow direction to selection valve (23), first reduction valve (24), safety valve (25), on-off valve (30), second selects valve (31), second reduction valve (32), the 3rd flow direction to select valve (35) and hydrogen filter (36);
The described first gases at high pressure flexible pipe (7) one ends link to each other with first collecting pipe (5), and the other end links to each other with preceding stifled (12) of gas cylinder (11); The second gases at high pressure flexible pipe (8) one ends link to each other with pressure relief device PRD (10), and the other end links to each other with back stifled (13) of gas cylinder (11); One end of the 3rd gases at high pressure flexible pipe (9) links to each other with first collecting pipe (5), and the other end links to each other with the air source inlet (18) of pipe system (3); Pressure relief device PRD (10) also links to each other with second collecting pipe (8); Second collecting pipe (8) links to each other with the air channel of testing laboratory;
The described first gas cylinder temperature sensor (14) and the first storage pressure sensor (15) are installed on preceding stifled (12) of gas cylinder (11);
The described second gas cylinder temperature sensor (16) and the second storage pressure sensor (17) are installed on back stifled (13) of gas cylinder (11);
Described air source inlet (18) links to each other with hydrogen filter (36) with the 3rd gases at high pressure flexible pipe (9) respectively;
Described hydrogen filter (36) links to each other with the valve (22) of air source inlet (18) with the band pneumatic actuator respectively;
The valve of described band pneumatic actuator (22) hydrogen filter (36) respectively links to each other to selection valve 23 (23) with first-class;
Described first-class to a road linking to each other with first reduction valve (24) of selecting valve (23), another road links to each other with safety valve first port (26);
Described first reduction valve (24) links to each other with safety valve second port (27);
Described safety valve second port (27) links to each other with on-off valve second port (29);
Described on-off valve second port (29) and second flows to selects valve (31) to link to each other;
Described on-off valve first port (28) links to each other with gas purging outlet (21) with safety valve first port (26) respectively;
Described second flow to select a road of valve (31) to link to each other with second reduction valve, first port (33), and another road links to each other with second reduction valve, second port (34);
Described second reduction valve, second port (34) and the 3rd flows to selects valve (35) to link to each other;
A road of described the 3rd flow direction selection valve (35) exports (19) with first gas stream and links to each other, and another road exports (20) with second gas stream and links to each other;
Described first gas stream outlet (19) links to each other with fuel cell car aerating inlet;
Described second gas stream outlet (20) links to each other with mass flowmeter (37);
Between the valve (22) of described hydrogen filter (36) and band pneumatic actuator, between first reduction valve (24) and safety valve second port (27), between second reduction valve, second port (34) and the 3rd flow direction selection valve (35) the first mechanical compression table (38), the second mechanical compression table (39) and the 3rd mechanical compression table (40) are installed respectively;
Described first-class to selecting (24) installation first pipeline temperature sensor (41) and first line-pressure sensor (42) between the valve (23) and first reduction valve;
Described on-off valve second port (29) and second flows to selects to install between the valve (31) the second pipeline temperature sensor (43) and second line-pressure sensor (44).
2. the fuel consumption assessment device of a kind of fuel cell car according to claim 1, it is characterized in that described assessment device also comprises the quality weighing device, described quality weighing device comprises windproof shockproof casing (45), precision balance (46), the balance servicing unit (47) of weighing.
3. the fuel consumption assessment device of a kind of fuel cell car according to claim 2 is characterized in that the described balance servicing unit (47) of weighing adopts worm and gear-cam-push rod structure.
4. the fuel consumption assessment device of a kind of fuel cell car according to claim 1 and 2, it is characterized in that the described first gas cylinder temperature sensor (14) links to each other with computing machine respectively with the first storage pressure sensor (15), the described second gas cylinder temperature sensor (16) links to each other with computing machine respectively with the second storage pressure sensor (17).
5. the fuel consumption assessment device of a kind of fuel cell car according to claim 1 and 2 is characterized in that described gas cylinder (11) adopts the aluminium alloy inner bag and twines coating with carbon fiber.
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| CN104677640A (en) * | 2013-11-29 | 2015-06-03 | 清华大学 | Testing method for economic efficiency of fuel cell hybrid electric vehicle |
| CN110887674A (en) * | 2019-12-03 | 2020-03-17 | 吉林大学 | Method for testing hydrogen consumption of fuel cell automobile |
| WO2023045448A1 (en) * | 2021-09-24 | 2023-03-30 | 宁德时代新能源科技股份有限公司 | Measurement assembly and measurement tool |
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