CN102996873A - Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor - Google Patents

Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor Download PDF

Info

Publication number
CN102996873A
CN102996873A CN2011102655108A CN201110265510A CN102996873A CN 102996873 A CN102996873 A CN 102996873A CN 2011102655108 A CN2011102655108 A CN 2011102655108A CN 201110265510 A CN201110265510 A CN 201110265510A CN 102996873 A CN102996873 A CN 102996873A
Authority
CN
China
Prior art keywords
stepping motor
shell body
spool
hole
lower shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011102655108A
Other languages
Chinese (zh)
Other versions
CN102996873B (en
Inventor
周连刚
任志彬
李白娥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Aerospace Propulsion Institute
Original Assignee
Beijing Aerospace Propulsion Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Aerospace Propulsion Institute filed Critical Beijing Aerospace Propulsion Institute
Priority to CN201110265510.8A priority Critical patent/CN102996873B/en
Publication of CN102996873A publication Critical patent/CN102996873A/en
Application granted granted Critical
Publication of CN102996873B publication Critical patent/CN102996873B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • Electrically Driven Valve-Operating Means (AREA)
  • Fuel Cell (AREA)

Abstract

The invention relates to the technical field of decompression valves of a fuel cell power generation system and further discloses a driving type decompression valve capable of automatically adjusting a high-accuracy stepping motor. The stepping motor is fixed at the upper end of an upper casing in the driving type decompression valve, a stepping motor shaft on the stepping motor extends into the upper casing and connected with a spring device in the upper casing, an air outlet through hole and an air inlet through hole are arranged on a lower casing, a valve core and an auxiliary spring at the lower end of the valve core are sequentially arranged at the center of the lower casing, the air outlet through hole and the air inlet through hole are separated through a sealing pad and a valve core, the upper casing fixedly presses a membrane on the lower casing, and the spring device on the upper casing can push the valve core to move vertically through the membrane. By automatically adjusting and controlling on pressure of the decompression valve through the stepping motor, stability of the pressure can be maintained, and the decompression valve is low in power consumption and high in working reliability. Simultaneously, a solenoid valve can be prevented from being opened, and safety and reliability of the fuel cell battery generation system are improved by impact to batteries due to instant saber generated by air passing through the decompression valve.

Description

A kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve
Technical field
The invention belongs to fuel cell generation reduction valve technical field, be specifically related to a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve.
Background technique
In fuel cell generation, the pressure stability of fuel battery inside is regulated, for having great importance in performance and working life of battery.Pressure stability, start battery process are hit little, and the life-span of battery is long; Otherwise pressure surge is large, and battery life is short, even causes breaking of PEM, damages greatly.
Hybrid linear stepper motor is the control unit that electrical pulsing signal is changed into straight-line displacement.When step actuator receives a pulse signal, it rotates a fixing angle with regard to the rotor of Driving Stepping Motor by the direction of setting, at internal rotor, there is a threaded accurate nut to cooperate with screw rod, rotatablely move like this and just can be converted into straight line motion at motor internal, thereby make total small and exquisite, reliable, have the characteristics of At High Resolution, have widely in accurate positioning field and use.
In the fuel cell generation, reduction valve generally adopts traditional structural type now, and system is adjusted to system demand pressure with reduction valve before starting.System starts moment, and solenoid valve is opened, and gas is through reduction valve, there is instantaneous sharp cutting edge of a knife or a sword in pressure, battery is caused certain impact, affect the working life of battery, simultaneously, because in system's running, along with the variation of gas flow, bleed pressure, the pressure of inside battery also can correspondingly be affected, if untimely the adjusting, can have a strong impact on the performance index of battery, reduce the safety and reliability of fuel cell generation.
Summary of the invention
The object of the present invention is to provide a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve, the aperture that can accurately automatically regulate reduction valve realizes the accurately problem of control downstream pressure.
Technological scheme of the present invention is as follows: a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve, comprise that stepping is electronic, upper shell, spool and lower shell body, wherein, the upper shell upper end is fixed with stepper motor, and the step motor shaft on the stepper motor extend in the upper shell, and be connected with spring assembly in the upper shell, the lower shell body both sides have out vent hole and air inlet through hole, and the lower shell body center is provided with the auxiliary spring of spool and spool lower end successively, edge, spool upper end is the annular flange flange structure, the center is the elongate cylinder bar structure, the elongate cylinder rod of spool upper end stretches out outside the Gask-O-Seal and ring sealing base that is installed in the lower shell body, and fit with the diaphragm of flexibility, annular flange flange structure on the spool and sealing gasket are fitted, the air inlet through hole of seal isolation lower shell body and go out vent hole, and when spool moves down and leaves with sealing gasket, be communicated with the air inlet through hole and go out vent hole, upper shell is pressed abd fixed on diaphragm on the lower shell body, and guarantees that spring assembly on the upper shell can promote spool by diaphragm and move up and down.
Described lower shell body upper end vertically has the first ladder Column groove, and the lower shell body lower end vertically has the second ladder Column groove, and lower shell body lower end one side level has the air inlet through hole that is connected with the second ladder Column groove, and is fixedly connected with gas inlet; Lower shell body lower end opposite side has the vent hole that goes out that is connected with the first ladder Column groove, and is fixedly connected with gas outlet.
Described sealing gasket circle structure, its be positioned over ladder in lower shell body the second ladder Column groove stupefied on, and be fixed by the sealing seat of circle structure.
Spring assembly in the described upper shell comprises upper spring seat, main spring and lower spring cup, wherein lower spring cup places on the diaphragm, and upper spring seat is cap-like structure, and groove and the step motor shaft at its center are complementary, and under the promotion of step motor shaft to upper spring seat, the compression main spring.
Have the ladder cylindrical structure of cylindrical body through hole centered by the described upper shell.
Remarkable result of the present invention is: a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve of the present invention can keep the stable of pressure by the auto-adjustment control of stepper motor to reduction valve pressure, and low in energy consumption, and functional reliability is high; Simultaneously, can avoid solenoid valve to open, the instantaneous sharp cutting edge of a knife or a sword that produces during gas process reduction valve has improved the safety and reliability of fuel cell generation to the impact of battery.
Description of drawings
Fig. 1 is a kind of automatic adjusting highi degree of accuracy stepping motor driving type structure of relief pressure valve schematic representation shown in the present;
Among the figure: 1, stepper motor; 2, step motor shaft; 3, upper spring seat; 4, main spring; 5, diaphragm; 6, spool; 7 gas outlets; 8, auxiliary spring; 9, lower shell body; 10, gas inlet; 11, upper shell; 12, sealing seat; 13, sealing gasket; 14, lower spring cup.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in further detail.
As shown in Figure 1, a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve, comprise stepper motor 1, upper shell 11, spool 6 and lower shell body 9, wherein, have the ladder cylindrical structure of cylindrical body through hole centered by the upper shell 11, stepper motor 1 is fixed on the upper shell 11, and the step motor shaft on the stepper motor 12 extend in the cylindrical body through hole of upper shell 11, lower shell body 9 upper ends vertically have the first ladder Column groove, lower shell body 9 lower ends vertically have the second ladder Column groove, and lower shell body 9 lower ends one side level has the air inlet through hole that is connected with the second ladder Column groove, and is fixedly connected with gas inlet 10; Lower shell body 9 lower end opposite sides have the vent hole that goes out that is connected with the first ladder Column groove, and are fixedly connected with gas outlet 7; In the second ladder Column groove of lower shell body 9, auxiliary spring 8, spool 6, sealing gasket 13 and sealing seat 12 are installed successively, wherein, circular sealing gasket 13 be placed on ladder in the lower shell body 9 second ladder Column grooves stupefied on, and be fixed by circular sealing seat 12, spool 6 integral body are club shaped structure, its upper end is the edge annular flange flange, the elongate cylinder bar structure outside sealing gasket 13 and the sealing seat 12 is stretched out at the center, spool 6 lower ends closely are fitted in the flange of spool 6 upper ends on the sealing gasket 13 under the promotion of auxiliary spring 8 of compression; At the stupefied diaphragm 5 that is placed with of the ladder of lower shell body 9 first ladder Column grooves, upper shell 11 is fixedly connected with lower shell body 9, diaphragm 5 is fixed, and the lower end of diaphragm 5 contacts with the elongate cylinder rod of spool 6 upper ends, in diaphragm 5 and the formed cylinder body cavity of upper shell 11 centered cylinder through holes, upper spring seat 3 is installed successively, main spring 4 and lower spring cup 14, and lower spring cup 14 is positioned on the diaphragm 5, upper spring seat 3 is cap-like structure, the groove at its center and step motor shaft 2 are complementary, and under the promotion of 2 pairs of upper spring seats 3 of step motor shaft, compression main spring 4.
A kind of specific works process of automatically regulating highi degree of accuracy stepping motor driving type reduction valve of the present invention is: after system starts, stepper motor 1 reception control signal, drive step motor shaft 2 moves up and down or moves up, when step motor shaft 2 moves down, promoting upper spring seat 3 moves down and compresses main spring 4, main spring 4 acts on the diaphragm 5 by lower spring cup 14, and the spool 6 that promotes below the diaphragm 5 moves downward, the annular flange flange of spool 6 is separated from sealing gasket 13 gradually, valve opening increases, and gas outlet 7 pressure raise gradually; When step motor shaft 2 moved upward, main spring 4 decrements were less, reduced by lower spring cup 14 and 5 pairs of spool 6 applied pressures of diaphragm, spool 6 moves upward under the effect of lower end auxiliary spring 8, and contact with sealing gasket gradually, valve opening is less, and gas outlet 7 pressure reduce gradually.

Claims (5)

1. automatically regulate highi degree of accuracy stepping motor driving type reduction valve for one kind, it is characterized in that: comprise stepping electronic (1), upper shell (11), spool (6) and lower shell body (9), wherein, upper shell (11) upper end is fixed with stepper motor (1), and the step motor shaft (2) on the stepper motor (1) extend in the upper shell (11), and with upper shell (11) in spring assembly be connected, lower shell body (9) both sides have out vent hole and air inlet through hole, and lower shell body (9) center is provided with the auxiliary spring (8) of spool (6) and spool (6) lower end successively, edge, spool (6) upper end is the annular flange flange structure, the center is the elongate cylinder bar structure, the elongate cylinder rod of spool (6) upper end stretches out outside the Gask-O-Seal (12) and ring sealing base (12) that is installed in the lower shell body (9), and fit with the diaphragm (5) of flexibility, annular flange flange structure on the spool (6) and sealing gasket (13) are fitted, the air inlet through hole of seal isolation lower shell body (9) and go out vent hole, and spool (6) moves down with sealing gasket (12) when leaving, be communicated with the air inlet through hole and go out vent hole, upper shell (11) is pressed abd fixed on diaphragm (5) on the lower shell body (9), and guarantees that spring assembly on the upper shell (11) can promote spool (6) by diaphragm (5) and move up and down.
2. a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve according to claim 1, it is characterized in that: described lower shell body (9) upper end vertically has the first ladder Column groove, lower shell body (9) lower end vertically has the second ladder Column groove, and lower shell body (9) lower end one side level has the air inlet through hole that is connected with the second ladder Column groove, and is fixedly connected with gas inlet (10); Lower shell body (9) lower end opposite side has the vent hole that goes out that is connected with the first ladder Column groove, and is fixedly connected with gas outlet (7).
3. a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve according to claim 1, it is characterized in that: described sealing gasket (13) circle structure, its be positioned over ladder in lower shell body (9) the second ladder Column grooves stupefied on, and be fixed by the sealing seat (12) of circle structure.
4. a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve according to claim 1, it is characterized in that: the spring assembly in the described upper shell (11) comprises upper spring seat (3), main spring (4) and lower spring cup (14), wherein lower spring cup (14) places on the diaphragm (5), upper spring seat (3) is cap-like structure, the groove at its center and step motor shaft (2) are complementary, and under the promotion of step motor shaft (2) to upper spring seat (3), compression main spring (4).
5. a kind of automatic adjusting highi degree of accuracy stepping motor driving type reduction valve according to claim 1 is characterized in that: the ladder cylindrical structure that has the cylindrical body through hole centered by the described upper shell (11).
CN201110265510.8A 2011-09-08 2011-09-08 Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor Active CN102996873B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110265510.8A CN102996873B (en) 2011-09-08 2011-09-08 Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110265510.8A CN102996873B (en) 2011-09-08 2011-09-08 Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor

Publications (2)

Publication Number Publication Date
CN102996873A true CN102996873A (en) 2013-03-27
CN102996873B CN102996873B (en) 2014-07-23

Family

ID=47925815

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110265510.8A Active CN102996873B (en) 2011-09-08 2011-09-08 Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor

Country Status (1)

Country Link
CN (1) CN102996873B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454739A (en) * 2014-12-26 2015-03-25 东莞光洋信息科技有限公司 Central hydraulic pump and pressure-regulating reversing valves thereof
CN104847948A (en) * 2015-05-07 2015-08-19 北京航空航天大学 High-precision automatic control pressure reducer
CN105626933A (en) * 2014-11-14 2016-06-01 北京临近空间飞行器***工程研究所 Electromagnetic locking pressure reducing valve
CN111022736A (en) * 2019-12-20 2020-04-17 广州朗达电子设备有限公司 Evaporating pressure regulating valve capable of electrically regulating pressure
CN113653840A (en) * 2021-07-27 2021-11-16 上海空间推进研究所 Automatic auxiliary debugging device for pressure reducing valve, operation method and pressure reducing valve device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001041244A1 (en) * 1999-11-29 2001-06-07 Matsushita Electric Industrial Co., Ltd. Fuel cell system and method of operating the same
CN2443205Y (en) * 2000-09-22 2001-08-15 北京世纪富原燃料电池有限公司 Gas miniature pressure reducing valve
CN1553066A (en) * 2003-12-18 2004-12-08 武汉理工大学 Universal intelligent buffer gas pressure reducing valves
US20100196772A1 (en) * 2009-02-03 2010-08-05 Honda Motor Co., Ltd. Fuel cell system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001041244A1 (en) * 1999-11-29 2001-06-07 Matsushita Electric Industrial Co., Ltd. Fuel cell system and method of operating the same
CN2443205Y (en) * 2000-09-22 2001-08-15 北京世纪富原燃料电池有限公司 Gas miniature pressure reducing valve
CN1553066A (en) * 2003-12-18 2004-12-08 武汉理工大学 Universal intelligent buffer gas pressure reducing valves
US20100196772A1 (en) * 2009-02-03 2010-08-05 Honda Motor Co., Ltd. Fuel cell system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105626933A (en) * 2014-11-14 2016-06-01 北京临近空间飞行器***工程研究所 Electromagnetic locking pressure reducing valve
CN105626933B (en) * 2014-11-14 2018-05-18 北京临近空间飞行器***工程研究所 A kind of electromagnetism locking pressure reducing valve
CN104454739A (en) * 2014-12-26 2015-03-25 东莞光洋信息科技有限公司 Central hydraulic pump and pressure-regulating reversing valves thereof
CN104454739B (en) * 2014-12-26 2016-09-14 东莞光洋信息科技有限公司 Central hydraulic pump and pressure regulation reversal valve thereof
CN104847948A (en) * 2015-05-07 2015-08-19 北京航空航天大学 High-precision automatic control pressure reducer
CN111022736A (en) * 2019-12-20 2020-04-17 广州朗达电子设备有限公司 Evaporating pressure regulating valve capable of electrically regulating pressure
CN111022736B (en) * 2019-12-20 2022-04-22 广州朗达电子设备有限公司 Evaporating pressure regulating valve capable of electrically regulating pressure
CN113653840A (en) * 2021-07-27 2021-11-16 上海空间推进研究所 Automatic auxiliary debugging device for pressure reducing valve, operation method and pressure reducing valve device
CN113653840B (en) * 2021-07-27 2023-09-26 上海空间推进研究所 Automatic auxiliary debugging device for pressure reducing valve, operation method and pressure reducing valve device

Also Published As

Publication number Publication date
CN102996873B (en) 2014-07-23

Similar Documents

Publication Publication Date Title
CN102996873B (en) Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor
CN201487554U (en) Cutting-off pressure-regulating integrated gas pressure regulator
CN201487228U (en) Gas high-pressure cut-off valve
CN102312828A (en) Start-stop control method for double air compressor of locomotive
CN202851198U (en) Double piston type gas pressure reducing regulator for vehicles
CN2913770Y (en) Venting escape valve
CN202545918U (en) Small-pressure-difference low-pressure switching pressure regulation device
CN201487555U (en) Switching-off and pressure-regulating integrated gas pressure regulator
CN202383219U (en) Service life test bench of multi-turn valve electric device
CN201858159U (en) Air inlet valve of screw air compressor
CN203335361U (en) Air compressor energy-saving control device with motor power regulation function
CN203627965U (en) High-flow-rate two-stage gas pressure regulator
CN202469113U (en) Air reducing valve for ship
CN201651473U (en) Double-diaphragm indoor pressure regulator
CN102322532B (en) Zero-pressure opening type remotely-controlled float valve
CN201715055U (en) Adjustable non-return pressure relief valve
CN211116597U (en) High-pressure inverse proportion valve for air compressor
CN114905148A (en) Double-station board separator smoke extraction system and method
CN201354934Y (en) Pressure reducing regulator
CN202811143U (en) Electric fuel pump of integrated pressure regulating valve
CN207813889U (en) The Water pump pressure controller of output control signal and flow can be stablized
CN101696693A (en) Automatic water pump with functions of increasing capacity and storing pressure
CN220354577U (en) Self-operated multistage pressure reducing valve
CN212155940U (en) Direct-drive type gas pressure regulator
CN201827470U (en) Electronic pressure adjusting valve

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant