CN101323247A - Dilution device for fuel battery passenger car discharging hydrogen concentration - Google Patents
Dilution device for fuel battery passenger car discharging hydrogen concentration Download PDFInfo
- Publication number
- CN101323247A CN101323247A CNA2008101164978A CN200810116497A CN101323247A CN 101323247 A CN101323247 A CN 101323247A CN A2008101164978 A CNA2008101164978 A CN A2008101164978A CN 200810116497 A CN200810116497 A CN 200810116497A CN 101323247 A CN101323247 A CN 101323247A
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- Prior art keywords
- main body
- hydrogen
- air mix
- mix facilities
- baffle plate
- Prior art date
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 54
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 54
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000000446 fuel Substances 0.000 title claims abstract description 19
- 239000012895 dilution Substances 0.000 title claims description 12
- 238000010790 dilution Methods 0.000 title claims description 12
- 238000007599 discharging Methods 0.000 title claims description 12
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 43
- 230000005622 photoelectricity Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 8
- 238000010926 purge Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000007865 diluting Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention relates a concentration diluting device used for hydrogen discharged by a fuel cell passenger car, pertaining to the field of application technology of the fuel cell passenger car; the device comprises a photoelectric receiver, a photoelectric proximity switch, an electric fan, two static-free meshes, a hydrogen piping, a main body of the diluting device, a plurality of baffle plates, an electromagnetic valve and a fault detector of the electric fan. The main body of the diluting device is a body case with an opening on both ends; the two static-free meshes are connected with the inner walls on the both ends of the main body of the diluting device; the photoelectric receiver is arranged on the central shaft of the motor of the electric fan; the photoelectric proximity switch is arranged on the body case of the electric fan and connected with the fault detector of the electric fan; the hydrogen piping is communicated with the hydrogen inlet of the air inlet end of the main body of the diluting device and connected with a discharged hydrogen pipe by the electromagnetic valve. Under various working conditions of the passenger car, the device is capable of reducing the concentration of Purge to the safety level and has the advantages of small volume, compact structure, safety and reliability.
Description
Technical field
The invention belongs to the fuel battery passenger car applied technical field, particularly the density of hydrogen dilution technology of fuel battery passenger car discharging.
Background technology
At present, along with the fast development of fuel battery passenger car technology, the safety of fuel battery passenger car hydrogen feed system more and more is subjected to people's attention.When hydrogen and air in fuel cell chemical reaction took place, the phenomenon of discharging without the remaining hydrogen of chemical reaction to atmosphere was called Purge.If 100% Purge hydrogen runs into static or spark, just may burn, even can set off an explosion.In the process of moving, therefore hydrogen and air high-speed friction can produce static.The fuel cell powered vehicle Purge air mix facilities of Japan is mainly a combustion chamber, by at combustion chamber internal combustion hydrogen, reaches the purpose that reduces density of hydrogen, if but enter air in the combustion chamber, just blast easily, therefore there is certain potential safety hazard.In China, also there is not Purge concentration dilution device at present, and similarly gas mixer generally adopts perforated plate construction, multi-phase gas is mixed fully, but breaker plate only plays valve action, can not reduce the concentration of a certain gas, and complex structure, bulky, cost is very high.In addition, fuel battery passenger car in the process of moving, 1s discharges a large amount of remaining hydrogens at least at interval, therefore need to dilute fully at short notice density of hydrogen, but the reaction time of common gases mixing device is slower, and does not have anti-static precautions, is not suitable for using on fuel battery passenger car.
Summary of the invention
The objective of the invention is for overcoming the weak point of prior art, solve the technical matters that Purge concentration reduces, a kind of concentration dilution device of the hydrogen that is used for fuel battery passenger car discharging is newly proposed, adopt this device under the various operating modes of passenger vehicle, can both make Purge concentration be reduced to security level, and volume is little, compact conformation, safe and reliable has very high using value aspect the safety of raising fuel battery passenger car.
The technical solution adopted for the present invention to solve the technical problems is: propose a kind of concentration dilution device that is used for the hydrogen of fuel battery passenger car discharging, it is characterized in that this device comprises that photelectric receiver, photoelectricity are near switch, fan, two electrostatic prevention nets, hydrogen pipeline, release device main body, polylith baffle plate, electromagnetic valve, fan failure detector; Wherein, described air mix facilities main body is the housing of both ends open, these two ports are respectively air intake end and air discharge port end, housing in this appropriate location, air intake end has hydrogen inlet, described two electrostatic prevention nets are connected with the inwall of air mix facilities main body two-port housing, the semicircle baffle plate of described polylith is installed in the air mix facilities main body, this fan is installed in air mix facilities main body arrival end place, this photelectric receiver is installed on the fan electromotor center shaft, this photoelectricity is installed in above the fan drum and with the fan failure detector near switch and links to each other, this hydrogen pipeline is connected with described hydrogen inlet, and links to each other with the hydrogen pipe of discharging by electromagnetic valve.
Characteristics of the present invention are:
The present invention is blown into high-speed air by fan in the gas dilution apparatus body, reduce the density of hydrogen in the air mix facilities main body.This air mix facilities has adopted the waterproof anti-explosion fan, therefore is adapted at work under the rugged environment.Inner polylith half baffle plate of installing of air mix facilities, therefore the incorporation time that can prolong air and hydrogen is mixed air and hydrogen fully.At air intake and exit the electrostatic prevention net is housed respectively, therefore can eliminates the static that air produces when flow at high speed, the impurity in the energy filtered air guarantees the cleaning in the air mix facilities.Photelectric receiver and photoelectricity are housed near switch on the fan of this air mix facilities, when fan work, photoelectricity will send impulse singla near switch.The fan failure detector is judged the mode of operation of fan according to impulse singla.This air mix facilities is furnished with two-position three way magnetic valve, during air mix facilities work, opens solenoid valve, Purge hydrogen is entered in the air mix facilities main body, if the fan et out of order, fan failure detector meeting SELF CL electromagnetic valve is directly discharged Purege hydrogen in the atmosphere, therefore can prevent to assemble a large amount of hydrogen in the air mix facilities main body, alleviate the potential safety hazard of blast or burning.This air mix facilities diameter has only 15 ~ 20cm, and length has only 30 ~ 50cm, so volume is very little, and is convenient to processing, and cost is lower.
Description of drawings
Fig. 1 is a Purge concentration dilution device of the present invention,
Fig. 2 is the baffle plate erection plan,
Fig. 3 is fan failure detector circuit figure,
Fig. 4 is the fundamental diagram of Purge concentration dilution device.
The specific embodiment
The concentration dilution device of the hydrogen that is used for fuel battery passenger car discharging that the present invention proposes reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
Purge concentration dilution device example structure of the present invention comprises that photelectric receiver 11, photoelectricity are near switch 12, fan 13, two electrostatic prevention nets 14, hydrogen pipeline 15, release device main body 16, polylith baffle plate 17, electromagnetic valve 18, fan failure detector 19 as shown in Figure 1.Wherein, described air mix facilities main body is the cylindrical shell of a both ends open, and diameter is 15 ~ 20cm, and length is 30 ~ 50cm.These two ports are respectively air intake end and air discharge port end, and the housing in this appropriate location, air intake end has hydrogen inlet; Link to each other with the inwall at these air mix facilities main body 16 two ends with the electrostatic prevention net 14 that the housing internal diameter is complementary, and apart from the place of air intake end and the maximum 1cm of air discharge port end.Electrostatic prevention net 14 can be eliminated the static that air produces when flow at high speed, the impurity in the energy filtered air guarantees the cleaning in the air mix facilities.This hydrogen pipeline 15 is connected with described hydrogen inlet, and links to each other with the hydrogen pipe of discharging by electromagnetic valve.Fan 13 is installed in air mix facilities main body air intake end place, and the diameter of fan must be greater than the air intake end diameter of air mix facilities main body, in order to avoid hydrogen leaks from inlet.In the fuel cell driving process, will discharge Purge hydrogen fast, so the discharge capacity of fan to reach 400m3/h at least, and have the waterproof anti-explosion function.Photelectric receiver 11 is installed on the fan electromotor center shaft, and photoelectricity is installed in above the fan drum and with fan failure detector 19 near switch 12 and links to each other.Wherein, photoelectricity will reach 50Hz at least near the frequency response of switch.
The semicircle baffle plate 17 of polylith is installed in the air mix facilities main body, and first baffle plate 21 is installed in the place apart from air intake 15 ~ 25cm, and height of baffle plate can not surpass 1/2nd of air mix facilities diameter.If the excessive height of first baffle plate can reduce the flow velocity of air, so out of reach reduces the purpose of Purge concentration.Last piece baffle plate 24 is installed in the place apart from mixed gas outlet 15 ~ 25cm, and height of baffle plate can not surpass 1/2nd of air mix facilities diameter.If last piece baffle plate is too high, just can't discharges and accumulate in baffle plate miscellaneous gas on every side.Between first baffle plate and last piece baffle plate, 3 ~ 5 baffle plates 22,23 are installed equably, and the height of these baffle plates should reach 1/2 ~ 2/3 of air mix facilities main diameter, and the adjacent screen intersection is installed in air mix facilities main body inner wall place, (the orthogonal thereto arrangement of adjacent screen in the present embodiment, as shown in Figure 2).Hydrogen pipeline 5 is installed in the place apart from air intake 5 ~ 10cm, and by electromagnetic valve 18 with the discharging the hydrogen pipe link to each other, Pai Fang hydrogen can be diluted by air soon like this, but the distance inlet can not be near excessively, in order to avoid hydrogen leaks from inlet, this electromagnetic valve adopts two-position three way magnetic valve, during air mix facilities work, opens solenoid valve, Purge hydrogen is entered in the air mix facilities main body, if the fan et out of order, fan failure detector meeting SELF CL electromagnetic valve is directly discharged Purege hydrogen in the atmosphere.
The example structure of fan failure detector is made up of micro controller system 31, DC-DC module 32, relay 33, impulse commutation circuit 34 as shown in Figure 3.Wherein, micro controller system links to each other with the impulse commutation circuit with the DC-DC module respectively, and relay is connected between micro controller system and the DC-DC module.The micro controller system 31 of present embodiment adopts 8 micro controller systems of motorola series, and DC-DC module 32 adopts YIHONGTAI company's product (DC-DC24V-5V), and relay adopts Omron two contact relays.Form by resistance R 1, R2 and capacitor C towards rectifying circuit 34.Because the rotary speed unstabilization of fan is fixed, pulse signal frequency near switch output is also unstable, and this impulse singla is not complete square wave, and therefore the impulse singla of photoelectricity being exported near switch by impulse commutation circuit 4 converts square wave to, inputs to micro controller system then.Fuel battery passenger car provides 24V direct supply, and micro controller system can only bear 5V voltage, therefore by the DC-DC module 24V voltage transitions is become 5V.When micro controller system is accepted near the switching pulse signal high level signal, will the stable low level of output, so relay do not work, and electromagnetic valve is connected with the normally closed point of relay, so can start electromagnetic valve, hydrogen is entered in the air mix facilities main body.If impulse singla interrupts 1s at least, micro controller system can be exported high level, disconnects the normally closed point of relay, therefore can close electromagnetic valve, and hydrogen is directly discharged in the atmosphere.
Concrete working process of the present invention: as shown in Figure 4, when starting automobile, the fan of air mix facilities and start working near switch.At this moment, the fan failure detector will detect the impulse singla near switch, if the fan failure detector detects the impulse singla high level, micro controller system can send low level, start the bypass electromagnetic valve, and Purge hydrogen is entered in the air mix facilities main body.If fan et out of order, micro controller system will be exported high level attracting electric relay coil, and close the bypass electromagnetic valve, otherwise continue to discharge Purge hydrogen to air mix facilities.
The air mix facilities of present embodiment is reduced to discharge below 4% to Purge concentration by air and the baffle plate that fan is blown into.
Claims (6)
1, a kind of concentration dilution device that is used for the hydrogen of fuel battery passenger car discharging, it is characterized in that this device comprises that photelectric receiver, photoelectricity are near switch, fan, two electrostatic prevention nets, hydrogen pipeline, release device main body, polylith baffle plate, electromagnetic valve, fan failure detector; Wherein, described air mix facilities main body is the housing of both ends open, these two ports are respectively air intake end and air discharge port end, housing in this appropriate location, air intake end has hydrogen inlet, described two electrostatic prevention nets are connected with the inwall of air mix facilities main body two-port housing, the semicircle baffle plate of described polylith is installed in the air mix facilities main body, this fan is installed in air mix facilities main body arrival end place, this photelectric receiver is installed on the fan electromotor center shaft, this photoelectricity is installed in above the fan drum and with the fan failure detector near switch and links to each other, this hydrogen pipeline is connected with described hydrogen inlet, and links to each other with the hydrogen pipe of discharging by electromagnetic valve.
2, install according to claim 1, it is characterized in that described air mix facilities main body is a cylindrical shell, diameter is 15 ~ 20cm, and length is 30 ~ 50cm.
3, as device as described in the claim 2, it is characterized in that, described fan discharge capacity be 400m3/h.
4, as device as described in the claim 2, it is characterized in that, described polylith baffle plate is semicircular plate, first baffle plate is installed on the inwall apart from air mix facilities main body air intake end 15 ~ 25cm, last piece baffle plate is installed in the place apart from air mix facilities main body air discharge port end 15 ~ 25cm, and this first and last piece height of baffle plate are smaller or equal to 1/2nd of described air mix facilities main diameter; Between first baffle plate and last piece baffle plate, 3 ~ 5 baffle plates are installed equably, the height of each baffle plate of this centre is 1/2 ~ 2/3 of an air mix facilities main diameter; This adjacent screen intersection is installed on the air mix facilities main body inner wall.
5, as device as described in the claim 2, it is characterized in that described hydrogen inlet is apart from the air mix facilities main body air intake end 5 ~ 10cm of place.
6, as device as described in the claim 1,2,3,4 or 5, it is characterized in that described fan failure detector is made up of micro controller system, DC-DC module, relay, impulse commutation circuit; Wherein, micro controller system links to each other with the impulse commutation circuit with the DC-DC module respectively, and relay is connected between micro controller system and the DC-DC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101164978A CN100569552C (en) | 2008-07-11 | 2008-07-11 | The concentration dilution device that is used for the hydrogen of fuel battery passenger car discharging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008101164978A CN100569552C (en) | 2008-07-11 | 2008-07-11 | The concentration dilution device that is used for the hydrogen of fuel battery passenger car discharging |
Publications (2)
| Publication Number | Publication Date |
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| CN101323247A true CN101323247A (en) | 2008-12-17 |
| CN100569552C CN100569552C (en) | 2009-12-16 |
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| CNB2008101164978A Active CN100569552C (en) | 2008-07-11 | 2008-07-11 | The concentration dilution device that is used for the hydrogen of fuel battery passenger car discharging |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667299A (en) * | 2014-12-03 | 2016-06-15 | 现代自动车株式会社 | Structure of exhaust pipe for fuel cell vehicle |
| CN106295021A (en) * | 2016-08-15 | 2017-01-04 | 浙江大学 | A kind of Forecasting Methodology facing the strain of hydrogen heavy wall cylindrical shell elastic stress |
| CN106949943A (en) * | 2017-03-15 | 2017-07-14 | 湖北工程学院 | Gas volume measurement apparatus and fuel cell module |
| CN109681923A (en) * | 2018-11-20 | 2019-04-26 | 吴江市格瑞福金属制品有限公司 | A kind of kitchen range that the thermal efficiency is high |
| CN111156415A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen leakage adsorption system |
| CN111156413A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen gas pipeline system |
| CN111403777A (en) * | 2020-04-01 | 2020-07-10 | 广西玉柴机器股份有限公司 | Ventilation system of stack casing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106372273B (en) * | 2016-08-15 | 2018-05-29 | 浙江大学 | One kind faces hydrogen heavy wall cylindrical shell elastic limit loading prediction method |
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2008
- 2008-07-11 CN CNB2008101164978A patent/CN100569552C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667299A (en) * | 2014-12-03 | 2016-06-15 | 现代自动车株式会社 | Structure of exhaust pipe for fuel cell vehicle |
| US10160346B2 (en) | 2014-12-03 | 2018-12-25 | Hyundai Motor Company | Exhaust port structure of fuel cell vehicle |
| CN106295021A (en) * | 2016-08-15 | 2017-01-04 | 浙江大学 | A kind of Forecasting Methodology facing the strain of hydrogen heavy wall cylindrical shell elastic stress |
| CN106295021B (en) * | 2016-08-15 | 2018-05-29 | 浙江大学 | A kind of Forecasting Methodology for facing the strain of hydrogen heavy wall cylindrical shell elastic stress |
| CN106949943A (en) * | 2017-03-15 | 2017-07-14 | 湖北工程学院 | Gas volume measurement apparatus and fuel cell module |
| CN109681923A (en) * | 2018-11-20 | 2019-04-26 | 吴江市格瑞福金属制品有限公司 | A kind of kitchen range that the thermal efficiency is high |
| CN111156415A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen leakage adsorption system |
| CN111156413A (en) * | 2019-12-30 | 2020-05-15 | 清华大学 | Hydrogen gas pipeline system |
| CN111156415B (en) * | 2019-12-30 | 2021-01-05 | 清华大学 | Hydrogen leakage adsorption system |
| CN111156413B (en) * | 2019-12-30 | 2021-01-05 | 清华大学 | Hydrogen gas pipeline system |
| CN111403777A (en) * | 2020-04-01 | 2020-07-10 | 广西玉柴机器股份有限公司 | Ventilation system of stack casing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100569552C (en) | 2009-12-16 |
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Owner name: TSINGHUA UNIVERSITY Effective date: 20131225 Owner name: TSINGHUA UNIVERSITY SUZHOU AUTOMOBILE RESEARCH INS Free format text: FORMER OWNER: TSINGHUA UNIVERSITY Effective date: 20131225 |
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Effective date of registration: 20131225 Address after: 215134, Suzhou 2358, Changan Road, Wujiang District, Jiangsu 6, Wujiang science and Technology Pioneer Park, 2 floors Patentee after: SUZHOU AUTOMOBILE RESEARCH INSTITUTE, TSINGHUA UNIVERSITY (WUJIANG) Patentee after: Tsinghua University Address before: 100084 Beijing City, Haidian District Tsinghua Yuan Patentee before: Tsinghua University |
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Address after: 215200, Suzhou 2358, Changan Road, Wujiang District, Jiangsu 6, Wujiang science and Technology Pioneer Park, 2 floors Patentee after: SUZHOU AUTOMOBILE RESEARCH INSTITUTE, TSINGHUA UNIVERSITY (WUJIANG) Patentee after: Tsinghua University Address before: 215134, Suzhou 2358, Changan Road, Wujiang District, Jiangsu 6, Wujiang science and Technology Pioneer Park, 2 floors Patentee before: SUZHOU AUTOMOBILE RESEARCH INSTITUTE, TSINGHUA UNIVERSITY (WUJIANG) Patentee before: Tsinghua University |