CN101141003A - Hydrogen gas supply control system of vehicle fuel battery - Google Patents
Hydrogen gas supply control system of vehicle fuel battery Download PDFInfo
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- CN101141003A CN101141003A CNA2006100309773A CN200610030977A CN101141003A CN 101141003 A CN101141003 A CN 101141003A CN A2006100309773 A CNA2006100309773 A CN A2006100309773A CN 200610030977 A CN200610030977 A CN 200610030977A CN 101141003 A CN101141003 A CN 101141003A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention discloses a hydrogen supply control system for motor fuel cell, which comprises a high pressure reducer valve (1), one output of which is connected with a high flow main valve (6), the other output of which is connected with a pressure controlled valve (2) that can reduce the output pressure to 0.04 MPa, a pressure monitor (3) tests the pressure on output terminal, and when the pressure on output terminal is beyond the normal range, a control solenoid (4) will close the gas circuit, and a membrane (10) to open or close the high flow main valve (6). The invention can solve the problem of instability of the fuel cell when used on large power motor and extend battery life, which is convenient to user's use.
Description
Technical field
The present invention relates to vehicle braking control system, especially a kind of hydrogen gas supply control system of vehicle fuel battery.
Background technology
Hydrogen feed system on the fuel cell car, employing through second depressurized, flows to high pressure hydrogen 25-35Mpa fuel cell in 0.04-0.06MPa low pressure mode and carries out which generate electricity by electrochemical reaction usually.Because vehicle behavior is changeable, the changes in flow rate of pressure-reducing valve output is very big, and general pressure-reducing valve pressure drop is bigger when low pressure and mass flow is exported especially, and raises in low discharge output or zero delivery downforce, sometimes exceed the pressure that fuel cell pile can not bear, cause damage.For safety, have to the superpressure vent valves has been installed in system, hydrogen directly is discharged in the atmosphere.
Chinese patent 200510001240.4 discloses second depressurized has been integrated, and its shortcoming is that first order decompression is closed valve body, and unadjustable, user's scope of application is restricted; In addition, under big flow (when the hydrogen of big bus car is supplied with),, directly influence fuel cell and on the big bus car, normally use because the gas pressure change scope of fueling battery is bigger.For example, when temporary transient the parking, hydrogen is out of stock in the pipeline, causes big bus to start at once because nothing is kept gas.Special circumstances take place, split just in case the generation pipeline severs, valve can't be closed automatically, causes hydrogen to leak in a large number.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of hydrogen gas supply control system of vehicle fuel battery.Utilize the present invention, not only solved the stable use problem of high power fuel cell automobile, and avoided the leakage of hydrogen under the particular case.
In order to reach the foregoing invention purpose, the technical scheme that the present invention is adopted for its technical problem of solution provides a kind of hydrogen gas supply control system of vehicle fuel battery, and this system comprises:
High-pressure pressure-reducing valve will carry out the 1Mpa that reduces pressure the first time from the gases at high pressure of sources of hydrogen; The big flow main valve of leading up to of its output connects with fuel cell; Another road is connected to the pressure adjusting control valve by pipeline, and the pressure of its output is lowered to 0.04Mpa once more; Pressure monitor is used for the pressure of detected pressures adjusting control valve output, and the force value of detection shows by display.Electromagnetically operated valve, its input connects by the output of pipeline with the pressure adjusting control valve.Above-mentioned pressure monitor and electromagnetically operated valve are by a DC power supply, and the break-make control line of electromagnetically operated valve is connected with the contact of pressure monitor; Pressure monitor is the double-contact structure, all can send control signal when detected pressures is higher or lower than a certain set point, closes electromagnetically operated valve.The output of electromagnetically operated valve is connected to an air cavity by pipeline, and this air cavity comprises upper gas chamber and lower air chamber, and its center has a diaphragm that laterally cuts off.Upper gas chamber connects by the output of pipeline with big flow main valve; Lower air chamber is connected in the output of electromagnetically operated valve by pipeline.Diaphragm is connected with the valve of big flow main valve, with a spring location, makes big flow main valve keep closing when normality.When the pressure of lower air chamber during greater than the pressure of upper gas chamber, diaphragm overcomes the power of retainer spring, and to the motion of upper gas chamber direction, the valve that drives big flow main valve is upwards opened, and rate of discharge is increased.One end of diaphragm is provided with an air vent hole, and this air vent hole is relative with the cone-shaped end of responsive adjuster.Regulate the degree of depth that responsive adjuster termination enters air vent hole, can change the size of air vent hole, lower air chamber pressure reaches balance time thereby control upward.
The beneficial effect of the hydrogen gas supply control system of vehicle fuel battery of the present invention is:
1. because the valve that adopts all is an open type, be user-friendly to adjusting;
2. owing to adopt second depressurized, 35MPa pressure hydrogen warp can be arrived 0.05Mpa; Make the fuel cell reliably working;
3. because the control of pressure monitor and electromagnetically operated valve makes the Hydrogen Vapor Pressure of fueling battery remain at 0.03～0.05Mpa, prolonged the useful life of fuel cell;
4. because the present invention adopts the air cavity matrix to control big flow main valve, and after measured, the output flow during unlatching can surpass 1000L/min, therefore having solved fuel cell can not stablize the problem of use on high-powered automobiles.
Description of drawings
Fig. 1 is the hydrogen gas supply control system principle schematic of vehicle fuel battery of the present invention.
Embodiment
The present invention is further detailed explanation below in conjunction with drawings and Examples.
Fig. 1 comprises among the figure: high-pressure pressure-reducing valve 1, pressure adjusting control valve 2, pressure monitor 3, electromagnetically operated valve 4, responsive adjuster 5, display 7, upper gas chamber 8, lower air chamber 9 and diaphragm 10 for the schematic diagram of the hydrogen gas supply control system of vehicle fuel battery of the present invention.
As shown in Figure 1, this system comprises: high-pressure pressure-reducing valve 1, will carry out the 1Mpa that reduces pressure the first time from the gases at high pressure of sources of hydrogen; The big flow main valve 6 of leading up to of its output connects with fuel cell; The output of big flow main valve 6 is connected to fuel cell.Another road is connected to pressure adjusting control valve 2 by pipeline, and the pressure of its output is lowered to 0.04Mpa once more.Pressure monitor 3 is used for the pressure of detected pressures adjusting control valve 2 outputs, and the force value of detection shows by display 7.Display 7 uses when debugging, maintenance, removes when formally using.Electromagnetically operated valve 4, its input connects by the output of pipeline with pressure adjusting control valve 2.Above-mentioned pressure monitor 3 and electromagnetically operated valve 4 are by a DC power supply, and the break-make control circuit of electromagnetically operated valve 4 is connected with the contact of pressure monitor 3.Pressure monitor 3 adopts special a kind of double-contact pressure sensor, all can send control signal when detected pressures is higher or lower than a certain set point, closes electromagnetically operated valve 4.The pressure of pressure adjusting control valve 2 outputs under the detection of pressure monitor 3, maintains the 0.03-0.05MPa scope all the time, and the control electromagnetically operated valve is in open mode; In case exceed this scope, just battery valve 4 is closed, stop air feed, injury-free with the protection fuel cell.The output of electromagnetically operated valve 4 is connected to an air cavity by pipeline, and this air cavity comprises upper gas chamber 8 and lower air chamber 9, and its center has a diaphragm 10 that laterally cuts off.Diaphragm 10 is connected with the valve of big flow main valve 6, with a spring location, during normality, makes big flow main valve 6 be in closed condition; If the pressure of lower air chamber 9 is greater than the pressure of upper gas chamber 8, diaphragm 10 is to the direction motion of upper gas chamber 8, and the valve that will drive big flow main valve 6 makes progress, and big flow main valve 6 will be opened.Upper gas chamber 8 connects by the output of pipeline with big flow main valve 6; Lower air chamber 9 is connected in the output of electromagnetically operated valve 4 by pipeline.One end of diaphragm 10 is provided with an air vent hole, and this air vent hole is relative with the cone-shaped end of responsive adjuster 5.Regulate the degree of depth that responsive adjuster 5 terminations enter air vent hole, can change the size of air vent hole, lower air chamber pressure reaches balance time thereby control upward, reaches the purpose of regulating big flow main valve 6 response sensitivities.
Use for the convenience of the user, the high-pressure pressure-reducing valve 1 in the control system of the present invention, pressure adjusting control valve 2, main valve 6 all are open types, adjustable, and its spring force all can extraneously be regulated.Since adopt second depressurized, can be with 35MPa pressure hydrogen through arriving 0.05MPa, and simultaneously, the control owing to pressure monitor 3 and electromagnetically operated valve 4 makes the Hydrogen Vapor Pressure of fueling battery remain at 0.03～0.05MPa; Because when car engine, the big flow main valve of air cavity matrix 10 controls is opened, its output flow surpasses 1000L/min, has reduced the pressure error under changeable flow again.
Further the course of work of the present invention is described below.
As shown in Figure 1, after the high pressure hydrogen of 35Mpa enters control system of the present invention, at first carry out the 1Mpa that reduces pressure the first time by high-pressure pressure-reducing valve 1, post-decompression 1Mpa pressure divides two-way, one the road to big flow main valve 6, keep maintenance dose, that waits for car engine opens pressure and flow signal, so that start at once.Another road is carried out the 0.05Mpa that reduces pressure the second time through connecting tube to pressure adjusting control valve 2, and post-decompression 0.05Mpa gas detects through pressure monitor 3, and arrives lower air chamber 9 by electromagnetically operated valve 4.Because lower air chamber 9 communicates with upper gas chamber 8 by the air vent hole on the diaphragm 10, regulate the degree of depth that responsive adjuster 5 enters air vent hole, the size that equals to regulate air vent hole, thus control lower air chamber 9 is to the flow of upper gas chamber 8, obtain different equilibration times, the response time of just working.If two cavity pressures of lower air chamber 9 and upper gas chamber 8 equate that diaphragm 10 keeps poised state, does not work.If car engine, the outlet of this control system is opened, the rate of discharge of big flow main valve 6 certainly will greater than the gas of regulating through responsive adjuster 5 from lower air chamber 9 to upper gas chamber 8 flow, thereby pressure descends.At this moment, the pressure of lower air chamber 9 is greater than the pressure of upper gas chamber 8, and diaphragm 10 is to the direction motion of upper gas chamber 8, and the valve that drives big flow main valve 6 makes progress, and big flow main valve 6 is opened, and rate of discharge increases.
In the course of the work, the pressure monitor 3 of system of the present invention is always at monitoring pressure, in case pressure exceeds the 0.03-0.05MPa scope, electromagnetically operated valve 4 cuts out, the pressure of lower air chamber 9 equals the pressure of upper gas chamber 8 at this moment, diaphragm 10 is got back to initial position under the effect of spring force, the outlet of big flow main valve 6 is also closed, and stops air feed.
Electromagnetically operated valve 4 plays the effect of the big flow main valve of control.For example, when car crass takes place contingency, when fracture gas leakage takes place in the downstream hydrogen pipeline, the pressure that pressure monitor 3 detects its downstream reduces, and when outlet pressure was lower than 0.01Mpa, control electromagnetically operated valve 4 cut out, diaphragm 10 balances, thereby close big flow main valve 6, stop phase fuel cell air feed, avoided the leakage of hydrogen.
Claims (6)
1. the hydrogen gas supply control system of a vehicle fuel battery; It is characterized in that this device comprises:
High-pressure pressure-reducing valve [1] will carry out the 1Mpa that reduces pressure the first time from the gases at high pressure of sources of hydrogen; The big flow main valve [6] of leading up to of its output connects with fuel cell; Another road is connected to pressure adjusting control valve [2] by pipeline, and the pressure of its output is lowered to 0.04Mpa once more;
Pressure monitor [3] is used for the pressure of detected pressures adjusting control valve [2] output, and the force value of detection shows by display [7]; Electromagnetically operated valve [4], its input connects by the output of pipeline with pressure adjusting control valve [2], and its output is connected to an air cavity by pipeline; Described pressure monitor [3] and electromagnetically operated valve [4] are by a DC power supply, and the contact of the same pressure monitor of break-make control circuit [3] of electromagnetically operated valve [4] is connected;
Described air cavity comprises upper gas chamber [8] and lower air chamber [9], and its center has a diaphragm [10] that laterally cuts off; Upper gas chamber [8] connects by the output of pipeline with big flow main valve [6]; Lower air chamber [9] is connected in the output of electromagnetically operated valve [4] by pipeline; Diaphragm [10] is connected with the valve of big flow main valve [6], with a spring location; One end of described diaphragm [10] is provided with an air vent hole, but the cone-shaped end of the responsive adjuster [5] of the same up-down adjustment of this air vent hole is relative.
2. according to claims 1 described control system, it is characterized in that: described pressure monitor [3] is the double-contact structure, sends control signal when detected pressures is higher or lower than a certain set point, closes electromagnetically operated valve [4].
3. according to claims 1 or 2 described control system, it is characterized in that: when the pressure of described pressure monitor [3] detected pressures adjusting control valve [2] output maintained the 0.03-0.05MPa scope, control electromagnetically operated valve [4] was opened; When exceeding described scope, control electromagnetically operated valve [4] cuts out.
4. according to claims 1 described control system, it is characterized in that: described display [7] uses when debugging, maintenance, removes when formally using.
5. according to claims 1 described control system, it is characterized in that: described high-pressure pressure-reducing valve [1], pressure adjusting control valve [2], big flow main valve [6] adopt and open wide, adjustable form, and its spring force can be regulated from the external world.
6. according to claims 1 described control system, it is characterized in that: during described diaphragm [10] normality, control big flow main valve [6] and close; When the rate of discharge of big flow main valve [6] increases, the pressure of lower air chamber [9] is during greater than the pressure of upper gas chamber [8], diaphragm [10] is to the direction motion of upper gas chamber [8], and the valve that drives big flow main valve [6] upwardly opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100309773A CN101141003A (en) | 2006-09-08 | 2006-09-08 | Hydrogen gas supply control system of vehicle fuel battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100309773A CN101141003A (en) | 2006-09-08 | 2006-09-08 | Hydrogen gas supply control system of vehicle fuel battery |
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| CN101141003A true CN101141003A (en) | 2008-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100309773A Pending CN101141003A (en) | 2006-09-08 | 2006-09-08 | Hydrogen gas supply control system of vehicle fuel battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782791A (en) * | 2021-08-02 | 2021-12-10 | 佛山仙湖实验室 | Power control method and system for vehicle proton exchange membrane fuel cell |
| CN115107504A (en) * | 2021-03-23 | 2022-09-27 | 本田技研工业株式会社 | Fuel cell vehicle |
-
2006
- 2006-09-08 CN CNA2006100309773A patent/CN101141003A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115107504A (en) * | 2021-03-23 | 2022-09-27 | 本田技研工业株式会社 | Fuel cell vehicle |
| CN113782791A (en) * | 2021-08-02 | 2021-12-10 | 佛山仙湖实验室 | Power control method and system for vehicle proton exchange membrane fuel cell |
| CN113782791B (en) * | 2021-08-02 | 2023-01-10 | 佛山仙湖实验室 | Power control method and system for vehicle proton exchange membrane fuel cell |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080312 |
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| DD01 | Delivery of document by public notice |
Addressee: Shanghai Mechanical Power Engineering Co., Ltd. Fu Zeren Document name: Notification of Approving Refund |