CN102128107B - Device and method for producing oxyhydrogen through vehicle-mounted oxyhydrogen producer using residual electricity supplied by internal combustion engine - Google Patents
Device and method for producing oxyhydrogen through vehicle-mounted oxyhydrogen producer using residual electricity supplied by internal combustion engine Download PDFInfo
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Abstract
The invention relates to a device and method for producing oxyhydrogen through a vehicle-mounted oxyhydrogen producer using residual electricity supplied by an internal combustion engine. The system keeps the entire main body and a control system of the original internal combustion engine, one set of vehicle-mounted oxyhydrogen producer control system and one set of oxyhydrogen production, storage and supply system are added. The device mainly comprises the vehicle-mounted oxyhydrogen producer, a hydrogen storage tank, a hydrogen pressure reducer, a hydrogen flame retarding valve, an oxygen storage tank, an oxygen pressure reducer, an oxygen flame retarding valve, a storage battery loop relay connected between the engine and a storage battery, an oxyhydrogen producer loop relay connected between the engine and the oxyhydrogen producer, an electronic control unit and the like, wherein the hydrogen storage tank, the hydrogen pressure reducer and the hydrogen flame retarding valve are connected with a hydrogen outlet of the vehicle-mounted oxyhydrogen producer; and the an oxygen storage tank, the oxygen pressure reducer and the oxygen flame retarding valve are connected with an oxygen outlet of the vehicle-mounted oxyhydrogen producer. The electronic control unit controls the operation of the oxyhydrogen producer according to the relationship between the engine and the voltage ofthe storage battery and the pressure of hydrogen and oxygen in the storage tanks, preferably ensures the charge of the storage battery and stops the operation of the oxyhydrogen producer when the gases in the hydrogen and oxygen storage tanks have overpressure.
Description
Technical field
The invention provides device and controlling method that a kind of vehicle-mounted hydrogen production oxygen machine utilizes the surplus electric hydrogen manufacturing of internal-combustion engine, oxygen, particular content relates to and a kind ofly utilizes the unnecessary electric energy of internal-combustion engine to produce, store, supply with device and the controlling method of hydrogen and oxygen based on vehicle-mounted hydrogen production oxygen machine.
Background technique
Vapour, diesel engine tend to produce a large amount of noxious emissions when operation.Simultaneously, the minimizing day by day of petroleum resources makes that also improving internal combustion engine thermal efficiency becomes a kind of inexorable trend.Compare with traditional vapour, diesel fuel, hydrogen has numerous good burnings and physicochemical characteristics such as ignition energy is low, velocity of combustion fast, the lean-burn boundary is wide.Therefore, sneaking into hydrogen when internal combustion engine operation can improve engine thermal efficiency effectively and reduce its noxious emission.Oxygen also is a kind of good combustion improver, and the oxygen concentration that improves in the air-intake of combustion engine is conducive to reduce the interior oxygen deficient combustion district of cylinder, thereby suppresses the generation of noxious emissions such as CO and particulate matter.Simultaneously, in the plateau section, the oxygen content in the raising air inlet also is conducive to improve power and the torque-output characteristics of internal-combustion engine.
Hydrogen can be produced by modes such as reforming methane or coals, but still needs to consume a large amount of energy in the process of hydrogen utilizing these raw materials to produce, and produces CO2 emission.Simultaneously, with regard to present circumstances, supply with the infrastructure construction of automobile-used hydrogen and oxygen still seldom.Therefore, vehicle is difficult in the process of moving as adding vapour, diesel oil annotate at any time hydrogen and oxygen.
On the other hand, hydrogen is not resolved yet with car accumulating problem yet.The storage means of hydrogen mainly contains modes such as high-pressure gaseous storage hydrogen, liquid storage hydrogen and hydride hydrogen-storing at present.But during with the said method storage of hydrogen, its equipment quality is often bigger, and cost is higher.Simultaneously, very easily burning even blast under oxygen atmosphere of hydrogen.So, hydrogen and oxygen are carried with car simultaneously, and are stored in the high-pressure bottle and can bring hidden danger to the security of operation of vehicle.
Utilizing oxyhydrogen machine processed is a kind of effective means that realizes that hydrogen, oxygen store and use at internal-combustion engine with car water electrolysis hydrogen production gas and oxygen.With on a small quantity by hydrogen manufacturing oxygen machine-processed hydrogen and oxygen to be stored in volume less, and in the lower storage device of pressure, also can effectively reduce because the safety problem that hydrogen, oxygen bring with the car storage in a large number.But water electrolysis hydrogen production machine when operation power consumption is higher, if its method of operation is not control effectively, then it might transition battery consumption electric energy, the life of storage battery is shortened, and influence vehicle operating.Simultaneously, when accumulator electric-quantity when saturated, although this moment generator still in work, the unnecessary electric energy that generator produces can not be continued to charge into storage battery, thereby causes energy dissipation.
Summary of the invention
At the filling of the hydrogen of present existence and oxygen with car accumulating difficulty, the unnecessary waste of energy of generator and a large amount of consumed powers of vehicle-mounted hydrogen production oxygen machine caused the life of storage battery to shorten when accumulator electric-quantity was full of problem, the invention provides the device and method that a kind of vehicle-mounted hydrogen production oxygen machine utilizes the surplus electric hydrogen manufacturing oxygen of internal-combustion engine.
The present invention has adopted following technological scheme, and the device that the surplus electricity of a kind of internal-combustion engine in this invention is supplied with vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas comprises internal combustion engine main body 1, oil-electric engine 2 and storage battery 6.It has increased by a vehicle-mounted hydrogen manufacturing oxygen machine control system of cover on the basis that keeps internal combustion engine main body 1 and whole accessories and a cover oxyhydrogen gas is produced, storage, supply system comprises: electronic control unit 3, vehicle-mounted hydrogen production oxygen machine 11, the oxygen storage tank 8 and the hydrogen storage tank 10 that are connected with vehicle-mounted hydrogen production oxygen machine 11, be installed in oxygen pressure sensor 7 and Hydrogen Vapor Pressure sensor 9 on oxygen storage tank 8 and the hydrogen storage tank 10 respectively, the fire-retardant valve 15 of the oxygen pressure regulator 13 that links to each other with oxygen storage tank 8 and oxygen pipeline, the fire-retardant valve 14 of the hydrogen pressure regulator 12 that is connected with hydrogen storage tank 10 and hydrogen pipeline, be connected with storage battery loop relay 4 by cable between generator 2 and the storage battery 6, between generator 2 and oxyhydrogen machine processed 11, be connected with oxyhydrogen machine processed loop relay 5 by cable;
Oil-electric engine 2 links to each other with internal combustion engine main body.
Described internal-combustion engine comprises petrol engine and diesel engine.
The controlling method of above-mentioned engine exhaust control gear based on vehicle-mounted hydrogen production oxygen machine may further comprise the steps:
The device of the surplus electricity supply of a kind of internal-combustion engine vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas at first detects generator voltage signal a and battery tension signal f when moving, and mainly is divided into two kinds of situations according to the relation of the height between generator voltage Vg and the battery tension Vb:
1)Vg＝＜Vb
2)Vg＞Vb
a)Vb＜Vf
Be to guarantee the working life of the normal operation of vehicle and storage battery, when Vb＜Vf, ECU (Electrical Control Unit) 3 at first guarantees charge in batteries; Under the situation of Vb＜Vf, electronic control unit 3 sends control signal b and cuts off oxyhydrogen machine processed loop relay 5, and sends control signal c and connect storage battery loop relay 4, and whole electric energy that generator is produced are used for charge in batteries.
b)Vb＞＝Vf
When Vb＞=Vf, electronic control unit 3 judges that storage batteries have finished charging, and the dump power that produces during generator operation can offer vehicle-mounted hydrogen production oxygen machine 11 and produce hydrogen and oxygen with car; At this moment, electronic control unit continues to detect hydrogen storage tank pressure signal d and oxygen storage tank pressure signal e, when hydrogen or any one holding vessel pressure of oxygen during more than or equal to the pressure maximum Ps of holding vessel design, for guaranteeing system's security of operation, electronic control unit 3 sends control signal b and cuts off oxyhydrogen machine processed loop relay 5, make vehicle-mounted hydrogen production oxygen machine 11 stop to produce hydrogen, oxygen, and send control signal c and cut off storage battery loop relay 4 and stop charge in batteries; When pressure is lower than Ps in hydrogen or any one gas holder of oxygen, electronic control unit 3 sends control signal c cut-out storage battery loop relay 4 and stops charge in batteries, and send control signal b and connect oxyhydrogen machine processed loop relay 5, the unnecessary electric energy that is produced during with generator operation is all supplied with vehicle-mounted hydrogen production oxygen machine 11 and is produced hydrogen and oxygen; The hydrogen and the oxygen that are got by hydrogen manufacturing oxygen mechanism 11 are stored in respectively in hydrogen storage tank 10 and the oxygen storage tank 8, and be delivered to system's hydrogen, oxygen outlet through hydrogen pressure regulator 12, oxygen pressure regulator 13, the fire-retardant valve 14 of hydrogen pipeline and the fire-retardant valve 15 of oxygen pipeline respectively, offer vehicle and use.
Working procedure of the present invention: electronic control unit 3 is judged the method for operation according at first detected generator output voltage and battery tension.When generator voltage was lower than battery tension, electronic control unit 3 sent control signal b, c and cuts off storage battery loop relay 4 and oxyhydrogen machine processed loop relay 5 simultaneously, thereby stopped to charge in batteries and oxyhydrogen machine processed operation.When generator voltage is higher than battery tension, and when battery tension does not reach full state voltage as yet, electronic control unit 3 sends control signal c and connects storage battery loop relay 4, and send control signal b disconnection oxyhydrogen machine processed loop relay 5, make the whole electric energy of generator be used for charge in batteries.When generator voltage is higher than battery tension, storage battery is full of and hydrogen or any one holding vessel pressure of oxygen when being lower than the tank body design pressure, electronic control unit 3 sends control signal c and cuts off storage battery loop relay 4, and send control signal b and connect oxyhydrogen machine processed loop relay 5, the unnecessary electric energy that makes vehicle-mounted hydrogen production oxygen machine 11 can utilize generator to produce is produced hydrogen and oxygen, and hydrogen and the oxygen that makes is stored in respectively in hydrogen storage tank 10 and the oxygen storage tank 8.The hydrogen and the oxygen that are stored in the jar pass through separately independently supply pipeline, are delivered to the outlet of system's hydrogen and oxygen behind decompressor and fire-retardant valve respectively with pressure stable.When generator voltage is higher than battery tension, storage battery is full of and hydrogen or any one holding vessel pressure of oxygen during more than or equal to the tank body design pressure, electronic control unit 3 sends control signal b, c and cuts off storage battery loop relay 4 and oxyhydrogen machine processed loop relay 5 simultaneously, thereby stops to charge in batteries and oxyhydrogen machine processed operation.The hydrogen and the oxygen that are stored in hydrogen and the oxygen tank still can be through supply pipeline, decompressor and fire-retardant valve are delivered to the outlet of system's hydrogen and oxygen separately.
The invention has the beneficial effects as follows: can't reclaim problem with vehicle-mounted hydrogen production oxygen machine transition battery consumption electric energy at the filling of present hydrogen, oxygen and with the unnecessary electric energy that car accumulating difficulty, storage battery full load generator produce, the present invention proposes a kind ofly to produce the system of hydrogen, oxygen with car by vehicle-mounted hydrogen production oxygen machine by reclaiming the surplus electricity of oil-electric engine.This system has avoided because oxyhydrogen machine processed is moved the adverse effect to the normal operation of the life of storage battery and vehicle electric element system continuously by the operation of electronic control unit control charge in batteries and vehicle-mounted hydrogen production oxygen machine.This system utilizes that the unnecessary electric energy of electric generator of vehicle is produced hydrogen, oxygen can have been realized the energy recovery.Prepared hydrogen and oxygen independence supply engine have also avoided hydrogen and oxygen to shift to an earlier date the danger such as tempering that premix brings, and have improved the stability of system's operation.
Description of drawings
Fig. 1 structure of the present invention and fundamental diagram
1. internal-combustion engine; 2 generators; 3 electronic control units; 4 storage battery loop relays; 5 oxyhydrogen machine processed loop relays; 6 storage batteries; 7 oxygen pressure sensors; 8 oxygen storage tank; 9 Hydrogen Vapor Pressure sensors; 10 hydrogen storage tank; 11 vehicle-mounted hydrogen production oxygen machines; 12 hydrogen pressure regulator; 13 oxygen pressure regulators; The fire-retardant valve of 14 hydrogen pipelines; The fire-retardant valve of 15 oxygen pipelines
A generator voltage signal; B oxyhydrogen machine processed loop relay control signal; C storage battery loop relay control signal; D Hydrogen Vapor Pressure signal; E oxygen pressure signal; F battery tension signal.
Embodiment
Present embodiment has carried out following experiment at in-line four cylinder 1.6L petrol engine:
Build the device that the surplus electricity of internal-combustion engine is supplied with vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas according to structure shown in Figure 1 before the experiment, and from using shielded cable that oil-electric engine voltage and battery tension signal are delivered to electronic control unit 3 respectively.During experiment, the hydrogen pressure regulator 12 of installing in the system and oxygen pressure regulator 13 outlet pressures are 2.5bar.Hydrogen and oxygen storage tank maximum design pressure are 4bar.Experiment is carried out under idling for internal combustion engine and normal running (operation) conditions.
The experiment of 1 idling
Experiment is at first carried out under the idling for internal combustion engine condition.It is that 13.2V, battery tension are 13.7V that electronic control unit 3 detects generator voltage by generator voltage signal a and battery tension signal f.Because this moment, Vg＜Vb cut off oxyhydrogen machine processed loop relay 5 and storage battery loop relay 4 so electronic control unit 3 sends control signal b, c.
The experiment of 2 nominal situations
Engine conditions is adjusted to 1400r/min, and torque is 58Nm.It is that 14.9V, battery tension are 13.9V that electronic control unit 3 detects generator voltage by generator voltage signal a and battery tension signal f.This moment Vg＞Vb, but battery tension Vb still is lower than it when being full of voltage Vf=14.5V.Therefore, electronic control unit 3 sends control signal b and cuts off oxyhydrogen machine processed loop relay 5, and sends control signal c and connect storage battery loop relay 4, makes oil-electric engine 2 to storage battery 6 chargings.
After moving 5 minutes under the identical engine conditions, it is that 14.9V, battery tension are 14.5V that electronic control unit 3 detects generator voltage.This moment Vg＞Vb, and battery tension reaches its full-load voltage.Simultaneously, it is 1.0bar that electronic control unit 3 detects the hydrogen storage pressure tank by Hydrogen Vapor Pressure signal d, is lower than hydrogen storage tank design pressure 4bar.Therefore, under this condition, electronic control unit 3 sends control signal c cut-out storage battery loop relay 4 to be stopped to storage battery 6 chargings, and sends control signal b and connect oxyhydrogen machine processed loop relay 5, makes vehicle-mounted hydrogen production oxygen machine begin to produce hydrogen and oxygen.After the vehicle-mounted hydrogen production oxygen machine operation 10 minutes, detect hydrogen and the oxygen storage tank internal pressure is 3bar, hydrogen and oxygen native system separately the air pressure in the gas outlet be stabilized in pressure governor respectively and set pressure 2.5bar.
After moving 15 minutes under the identical engine conditions, electronic control unit 3 detects the hydrogen storage pressure tank and oxygen storage tank pressure all reaches 4bar.At this moment, electronic control unit cuts off oxyhydrogen machine processed loop relay 5 by sending control signal b, makes vehicle-mounted hydrogen production oxygen machine stop to produce oxyhydrogen gas.Owing to still have oxygen and hydrogen respectively in oxygen storage tank 8 and the hydrogen storage tank 10, so at hydrogen and the oxygen outlet of native system, the pressure of hydrogen and oxygen still is stabilized in 2.5bar.
Above-mentioned internal combustion engine bench test result shows, the device that adopts the surplus electricity of a kind of internal-combustion engine provided by the invention to supply with vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas can effectively utilize generator produces on the internal-combustion engine unnecessary electric energy for vehicle-mounted hydrogen production oxygen machine provides energy, and vehicle-mounted hydrogen production oxygen machine can be produced and storage of hydrogen and oxygen.Simultaneously, when storage battery does not reach full-load voltage, electronic control unit 3 cuts off oxyhydrogen machine processed loop relay, stop vehicle-mounted hydrogen production oxygen machine 11 and produce hydrogen and oxygen, thereby guaranteed that the vehicle electrical system power supply is normal, also effectively avoided because vehicle-mounted hydrogen production oxygen machine power consumption is excessive to life of storage battery adverse effect.
Claims (4)
1. the surplus electricity of an internal-combustion engine is supplied with the device of vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas, it is characterized in that: increased by a vehicle-mounted hydrogen manufacturing oxygen machine control system of cover on the basis that keeps internal combustion engine main body (1) and whole accessories and a cover oxyhydrogen gas is produced, storage, supply system comprises: electronic control unit (3), vehicle-mounted hydrogen production oxygen machine (11), the oxygen storage tank (8) that is connected with vehicle-mounted hydrogen production oxygen machine (11) and hydrogen storage tank (10), be installed in oxygen pressure sensor (7) and Hydrogen Vapor Pressure sensor (9) on oxygen storage tank (8) and the hydrogen storage tank (10) respectively, the oxygen pressure regulator (13) that links to each other with oxygen storage tank (8) and the fire-retardant valve of oxygen pipeline (15), the hydrogen pressure regulator (12) that is connected with hydrogen storage tank (10) and the fire-retardant valve of hydrogen pipeline (14), be connected with storage battery loop relay (4) by cable between generator (2) and the storage battery (6), between generator (2) and oxyhydrogen machine processed (11), be connected with oxyhydrogen machine processed loop relay (5) by cable;
Electronic control unit (3) is connected with oil-electric engine (2), obtains generator voltage signal a; Electronic control unit (3) links to each other respectively with storage battery loop relay (4) and oxyhydrogen machine processed loop relay (5), by sending the break-make that control signal c, b control storage battery loop relay (4) and oxyhydrogen machine processed loop relay (5) respectively; Electronic control unit (3) links to each other respectively with Hydrogen Vapor Pressure sensor (9) and oxygen pressure sensor (7), obtains hydrogen storage tank pressure signal d and oxygen storage tank pressure signal e; Electronic control unit (3) links to each other with storage battery (6), obtains battery tension signal f;
Oil-electric engine (2) links to each other with internal combustion engine main body.
2. the surplus electricity of a kind of internal-combustion engine according to claim 1 is supplied with the device of vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas, and it is characterized in that: described internal-combustion engine comprises petrol engine and diesel engine.
3. the surplus electricity of a kind of internal-combustion engine according to claim 1 is supplied with the device of vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas, and it is characterized in that: electronic control unit (3) links to each other with miscellaneous part by shielded cable.
4. supply with the controlling method of the device of vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas based on the surplus electricity of the described a kind of internal-combustion engine of claim 1, it is characterized in that this controlling method may further comprise the steps:
The device of the surplus electricity supply of a kind of internal-combustion engine vehicle-mounted hydrogen production oxygen mechanism oxyhydrogen gas at first detects generator voltage signal a and battery tension signal f when moving, and mainly is divided into two kinds of situations according to the relation of the height between generator voltage Vg and the battery tension Vb:
1）Vg=<Vb
Electronic control unit (3) detects oil-electric engine voltage signal a and battery tension signal f, when Vg=＜Vb, electronic control unit (3) judges that the electric energy deficiency that generator provides thinks storage battery (6) charging and can not offer vehicle-mounted hydrogen production oxygen machine (11) water electrolysis hydrogen production; Therefore, when Vg=＜Vb, electronic control unit (3) sends control signal b, c and cuts off storage battery loop relay (4) and oxyhydrogen machine processed loop relay (5) simultaneously;
2）Vg>Vb
Electronic control unit (3) detects oil-electric engine voltage signal a and battery tension signal f, when generator voltage was higher than battery tension, electronic control unit (3) judged that this moment, generator can be produced oxyhydrogen gas for storage battery (6) charges and offers vehicle-mounted hydrogen production oxygen machine (11); Vg〉during Vb, can be divided into two kinds of situations according to the relation between battery tension Vb and the storage battery full-load voltage Vf again:
a）Vb<Vf
Be to guarantee the working life of the normal operation of vehicle and storage battery, when Vb＜Vf, ECU (Electrical Control Unit) (3) at first guarantees charge in batteries; Under the situation of Vb＜Vf, electronic control unit (3) sends control signal b and cuts off oxyhydrogen machine processed loop relay (5), and sends control signal c and connect storage battery loop relay (4), and whole electric energy that generator is produced are used for charge in batteries;
b）Vb>=Vf
As Vb 〉=during Vf, electronic control unit (3) judges that storage battery finished charging, the dump power that produces during generator operation can offer vehicle-mounted hydrogen production oxygen machine (11) and produce hydrogen and oxygen with car; At this moment, electronic control unit continues to detect hydrogen storage tank pressure signal d and oxygen storage tank pressure signal e, when hydrogen or any one holding vessel pressure of oxygen during more than or equal to the pressure maximum Ps of holding vessel design, for guaranteeing system's security of operation, electronic control unit (3) sends control signal b and cuts off oxyhydrogen machine processed loop relay (5), make vehicle-mounted hydrogen production oxygen machine (11) stop to produce hydrogen, oxygen, and send control signal c and cut off storage battery loop relay (4) and stop charge in batteries; When pressure is lower than Ps in hydrogen or any one gas holder of oxygen, electronic control unit (3) sends control signal c cut-out storage battery loop relay (4) and stops charge in batteries, and send control signal b and connect oxyhydrogen machine processed loop relay (5), the unnecessary electric energy that is produced during with generator operation is all supplied with vehicle-mounted hydrogen production oxygen machine (11) and is produced hydrogen and oxygen; The hydrogen and the oxygen that are made by oxyhydrogen machine processed (11) are stored in respectively in hydrogen storage tank (10) and the oxygen storage tank (8), and pass through hydrogen pressure regulator (12), oxygen pressure regulator (13), the fire-retardant valve of hydrogen pipeline (14) and the fire-retardant valve of oxygen pipeline (15) respectively and be delivered to system's hydrogen, oxygen outlet, offer vehicle and use.
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| CN103266969B (en) * | 2013-05-10 | 2015-10-28 | 王木喜 | A kind of economizer |
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| WO2017031632A1 (en) * | 2015-08-21 | 2017-03-02 | 林飞龙 | High-efficient green-energy power structure in hydrogen energy |
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| CN110836153B (en) * | 2019-10-22 | 2020-11-10 | 西安交通大学 | Method and system for supplying hydrogen to HCNG engine power system by using waste heat |
| CN114475559B (en) * | 2020-10-28 | 2024-06-18 | 长城汽车股份有限公司 | Control method and device and vehicle |
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| GB8500064D0 (en) * | 1985-01-03 | 1985-02-13 | Thomas I | Electrolysis unit |
| WO2008012632A2 (en) * | 2006-07-27 | 2008-01-31 | Niche Vision Sdn. Bhd. | Process and apparatus for generating hydrogen enriched fuel |
| DE102007017568A1 (en) * | 2007-05-04 | 2009-01-08 | Volker Best | Multi-chamber H2 reactor with coupled modification unit |
| CN201661391U (en) * | 2009-10-29 | 2010-12-01 | 郑清桂 | Electrolysis water hydrogen oxygen generating combustion-supporting energy-saving device used for internal combustion engine |
| CN101956634B (en) * | 2010-09-10 | 2012-05-23 | 北京工业大学 | Device for preparing, storing and feeding vehicle-mounted hydrogen/oxygen and control method thereof |
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