CN103075376B - Volume expansion type high-pressure gas decompressing system - Google Patents
Volume expansion type high-pressure gas decompressing system Download PDFInfo
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- CN103075376B CN103075376B CN201310034472.4A CN201310034472A CN103075376B CN 103075376 B CN103075376 B CN 103075376B CN 201310034472 A CN201310034472 A CN 201310034472A CN 103075376 B CN103075376 B CN 103075376B
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- control valve
- cylinder
- directional control
- solenoid directional
- air pipe
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Abstract
The invention discloses a volume expansion type high-pressure gas decompressing system. A pressure inductor is arranged in an exit of a high-pressure gas storage tank, a first electromagnetic reversing valve, a second electromagnetic reversing valve and a third electromagnetic reversing valve are connected through a gas tube to form a main circuit, and a first-stage decompressing system, a second-stage decompressing system and a third-stage decompressing system are connected onto the main circuit; and in each decompressing system, an electromagnetic inductor is arranged on the outer wall of an air cylinder, an electromagnetic switch valve is connected with a rod cavity and a rodless cavity of the air cylinder by adopting the gas tube, and a branching pipe is respectively led out from the rodless cavity and the gas tube which is close to the rod cavity to be connected onto the main circuit. By the adoption of the system, the pressure of high-pressure gas is reduced, energy loss of gas can be effectively reduced in a decompressing process, during the decompressing process, heat exchange between the gas and the outside is carried out for a long time, and inner energy of the gas is increased.
Description
Technical field
The present invention relates to a kind of low-loss high pressure air reducing system regions, the pressurized gas that especially Pneumatic automobile stores carry out the system reduced pressure.
Background technique
Nowadays, day by day exhausted along with oil in the world, traditional automobile faces the challenge, and according to estimates, according to current exploitation rate, the petroleum resources in the whole world will be exhausted in the middle of this century.So, new energy power vehicle day by day pay close attention to by people, wherein Pneumatic automobile has good development prospect.Pneumatic automobile, using pressurized gas as power source, orders about air motor motion thus drives automobile.The volume of gas storage tank that Pneumatic automobile carries is limited, and in order to improve stored energy, extend distance travelled, the gas pressure of storage is up to tens MPas, and the working pressure of air motor is usually at about 1MPa.So pressurized gas re-uses after need reducing pressure, there is pressurized gas longspan decompression process.
The common pressure reducing mode of pressurized gas is expenditure and pressure, makes pressurized gas by aperture or slit, and to increase the mode of gas friction to reduce gas pressure, expenditure and pressure is easy to realize, but can bring irreversible energy loss to gas.Chinese patent CN101201127A proposes a kind of secondary gas decompressor, the stability exporting air pressure is ensured by feedback regulation, but it still adopts the mode of throttling to reduce gas pressure, causes gas energy loss, reduces the utilization ratio of system capacity.
Summary of the invention
The object of the present invention is to provide a kind of cubical expansion formula high pressure air reducing system, the decompression of pressurized gas longspan can be realized, and post-decompression pressure is fluctuated in relatively among a small circle, greatly reduce the energy loss in high pressure air reducing process simultaneously.
The technical solution realizing the object of the invention is: a kind of cubical expansion formula high pressure air reducing system, comprises high pressure tank, pressure inductor, the first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve, first order depressurized system, second level depressurized system, third level depressurized system and controller.High pressure tank outlet installation pressure inductor, be connected with the single-pass end of the first solenoid directional control valve by air pipe again, first port of the first solenoid directional control valve bilateral end is connected with the single-pass end of the second solenoid directional control valve by air pipe, second port of the first solenoid directional control valve bilateral end is connected with first order depressurized system by air pipe, first port of the second solenoid directional control valve bilateral end is connected by the single-pass end of air pipe with the 3rd solenoid directional control valve, second port of the second solenoid directional control valve bilateral end is connected with the second depressurized system by air pipe, first port of the 3rd solenoid directional control valve bilateral end connects an air pipe, as the air outlet of depressed gas, second port of the 3rd solenoid directional control valve bilateral end is connected with the 3rd depressurized system by air pipe.Pressure inductor, first order depressurized system, second level depressurized system, third level depressurized system, the first solenoid directional control valve, the second solenoid directional control valve are connected with controller respectively by wire with the 3rd solenoid directional control valve, for transferring signals to controller.
The present invention compared with prior art, its remarkable advantage: (1) the present invention adopts multilevel decompression, when gas tank pressure change, by sensor feedback control, by the cylinder combined serial of different vacuum ratio or be used alone, thus ensure that outlet pressure is stable within the specific limits; (2) during decompression, the gas expansion institute work overwhelming majority is used for the gas in rod chamber to push back to gas tank or higher level's cylinder, and energy loss is less; (3) pressurized gas flowing process is controlled by switch valve, and compare expenditure and pressure mode, energy loss is less; (4) in decompression process, likely adopt heat exchange method to absorb outside energy, be conducive to improving system capacity utilization ratio.
Accompanying drawing explanation
Fig. 1 is a kind of expansion high pressure air reducing system schematic proposed by the invention.
Fig. 2 is single-stage pressure reducing system schematic of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Composition graphs 1, a kind of cubical expansion formula high pressure air reducing system, comprises high pressure tank 1, pressure inductor 2, first solenoid directional control valve 15, second solenoid directional control valve 16, the 3rd solenoid directional control valve 17, first order depressurized system, second level depressurized system, third level depressurized system and controller 18.High pressure tank 1 exports installation pressure inductor 2, be connected by the single-pass end of air pipe with the first solenoid directional control valve 15 again, first port 19 of the first solenoid directional control valve 15 bilateral end is connected by the single-pass end of air pipe with the second solenoid directional control valve 16, second port 20 of the first solenoid directional control valve 15 bilateral end is connected with first order depressurized system by air pipe, first port 21 of the second solenoid directional control valve 16 bilateral end is connected by the single-pass end of air pipe with the 3rd solenoid directional control valve 17, second port 22 of the second solenoid directional control valve 16 bilateral end is connected with second level depressurized system by air pipe, first port 23 of the 3rd solenoid directional control valve 17 bilateral end connects an air pipe, as the air outlet of depressed gas, second port 24 of the 3rd solenoid directional control valve 17 bilateral end is connected with third level depressurized system by air pipe.Pressure inductor 2, first order depressurized system, second level depressurized system, third level depressurized system, the first solenoid directional control valve 15, second solenoid directional control valve 16 are connected with controller 18 respectively by wire with the 3rd solenoid directional control valve 17, for transferring signals to controller.
Composition graphs 2, first order depressurized system comprises the first cylinder 3, first electromagnetic inductor 6, the 4th electromagnetic inductor 9 and the first electromagnetic switch valve 12,4th electromagnetic inductor 9 is fixed by bolts to the rodless cavity top of the first cylinder 3 outer wall, and the first electromagnetic inductor 6 is fixed by bolts to the first cylinder 3 outer wall distance position, rod chamber top 1/4.First electromagnetic switch valve 12 is connected with the rodless cavity of the first cylinder 3 by air pipe one end, the other end is connected with the rod chamber of the first cylinder 3, the air pipe be connected separates arm be connected with the second port 20 of the first solenoid directional control valve 15 bilateral end with the rod chamber of the first cylinder 3.The rodless cavity of the first cylinder 3 by air pipe be connected the air pipe of the first solenoid directional control valve 15 with the second solenoid directional control valve 16 and be connected.First electromagnetic inductor 6, the 4th electromagnetic inductor 9 are connected with controller 18 by wire respectively with the first electromagnetic switch valve 12.The rodless cavity of the first cylinder 3 and the outer wall top of rod chamber are all near end cap.
Second level depressurized system comprises the second cylinder 4, second electromagnetic inductor 7, the 5th electromagnetic inductor 10 and the second electromagnetic switch valve 13,5th electromagnetic inductor 10 is fixed by bolts to the rodless cavity top of the second cylinder 4 outer wall, and the second electromagnetic inductor 7 is fixed by bolts to the second cylinder 4 outer wall distance position, rod chamber top 1/4.Second electromagnetic switch valve 13 is connected with the rodless cavity of the second cylinder 4 by air pipe one end, the other end is connected with the rod chamber of the second cylinder 4, the air pipe be connected separates arm be connected with the second port 22 of the second solenoid directional control valve 16 bilateral end with the rod chamber of the second cylinder 4.The rodless cavity of the second cylinder 4 by air pipe be connected the air pipe of the second solenoid directional control valve 16 with the 3rd solenoid directional control valve 17 and be connected.Second electromagnetic inductor 7, the 5th electromagnetic inductor 10 are connected with controller 18 by wire respectively with the second electromagnetic switch valve 13.The rodless cavity of the second cylinder 4 and the outer wall top of rod chamber are all near end cap.
Third level depressurized system comprises the 3rd cylinder 5, the 3rd electromagnetic inductor 8, the 6th electromagnetic inductor 11 and the 3rd electromagnetic switch valve 14,6th electromagnetic inductor 11 is fixed by bolts to the rodless cavity top of the 3rd cylinder 5 outer wall, and the 3rd electromagnetic inductor 8 is fixed by bolts to the 3rd cylinder 5 outer wall distance position, rod chamber top 1/4.3rd electromagnetic switch valve 14 is connected with the rodless cavity of the 3rd cylinder 5 by air pipe one end, the other end is connected with the rod chamber of the 3rd cylinder 5, the air pipe be connected separates arm be connected with the second port 24 of the 3rd solenoid directional control valve 17 bilateral end with the rod chamber of the 3rd cylinder 5.The rodless cavity of the 3rd cylinder 5 is connected by first port 23 of air pipe with the 3rd solenoid directional control valve 17 bilateral end.3rd electromagnetic inductor 8, the 6th electromagnetic inductor 11 are connected with controller 18 by wire respectively with the 3rd electromagnetic switch valve 14.The rodless cavity of the 3rd cylinder 5 and the outer wall top of rod chamber are all near end cap.
Working procedure of the present invention is as follows:
In the course of the work, first order depressurized system, second level depressurized system, third level depressurized system can single-stage pressure reducing system works, two-stage decompression system can work simultaneously, also can work by three grades of depressurized systems simultaneously.
Gas in high pressure tank 1 is by having two kinds of results after the first solenoid directional control valve 15: one is enter first order depressurized system to reduce pressure, and post-decompression gas to be passed into the second solenoid directional control valve 16, two be directly pass into the second solenoid directional control valve 16; Gas is by having two kinds of results after the second solenoid directional control valve 16: one is enter second level depressurized system to reduce pressure, and post-decompression gas to be passed into the 3rd solenoid directional control valve 17, two be directly pass into the 3rd solenoid directional control valve 17; Gas is by having two kinds of results after the 3rd solenoid directional control valve 17: one is enter third level depressurized system to reduce pressure, and is derived by post-decompression gas, and use as final post-decompression gas, two is direct derivation, uses as final post-decompression gas.
Participate at first order depressurized system in the process of decompression, the rod chamber of the first cylinder 3 keeps being communicated with gas holder all the time.Operationally, along with the discharge of gas in rodless cavity, piston moves to the 4th electromagnetic inductor 9, when the fast emptying of gas, when piston moves near the 4th electromagnetic inductor 9, 4th electromagnetic inductor 9 is excited, and the first electromagnetic switch valve 12 is opened by outgoing signal, pressurized gas in gas holder enter rodless cavity fast and free expansion promotion piston moves to the first electromagnetic inductor 6, when piston moves a segment distance, excite the first electromagnetic inductor 6, first electromagnetic switch valve 12 is closed by outgoing signal, gas in rodless cavity is reached state of equilibrium by free expansion decompression and is exported as post-decompression gas, circulation like this.
Participate in the process of decompression at second level depressurized system, the rod chamber of the second cylinder 4 keeps being communicated with the rodless cavity of the cylinder of upper level depressurized system or gas holder all the time.Operationally, along with the discharge of gas in rodless cavity, piston moves to the 5th electromagnetic inductor 10, when the fast emptying of gas, when piston moves near the 5th electromagnetic inductor 10, 5th electromagnetic inductor 10 is excited, and the second electromagnetic switch valve 13 is opened by outgoing signal, pressurized gas in gas holder enter rodless cavity fast and free expansion promotion piston moves to the second electromagnetic inductor 7, when piston moves a segment distance, excite the second electromagnetic inductor 7, second electromagnetic switch valve 13 is closed by outgoing signal, gas in rodless cavity is reached state of equilibrium by free expansion decompression and is exported as post-decompression gas, circulation like this.
Participate in the process of decompression at third level depressurized system, the rod chamber of the 3rd cylinder 5 keeps being communicated with the rodless cavity of the cylinder of upper level depressurized system or gas holder all the time.Operationally, along with the discharge of gas in rodless cavity, piston moves to the 6th electromagnetic inductor 11, when the fast emptying of gas, when piston moves near the 6th electromagnetic inductor 11, 6th electromagnetic inductor 11 is excited, and the 3rd electromagnetic switch valve 14 is opened by outgoing signal, pressurized gas in gas holder enter rodless cavity fast and free expansion promotion piston moves to the 3rd electromagnetic inductor 8, when piston moves a segment distance, excite the 3rd electromagnetic inductor 8, 3rd electromagnetic switch valve 14 is closed by outgoing signal, gas in rodless cavity is reached state of equilibrium by free expansion decompression and is exported as post-decompression gas, circulation like this.
Embodiment:
Be pressurized gas in high pressure tank 1, when setting initial, in high pressure tank 1, gas pressure is 30Mpa, about 1MPa is maintained in order to make air outlet gas pressure, Pressure reducing ratio is respectively 1/2, 1/3, first cylinder 3 of 1/5, second cylinder 4, 3rd cylinder 5 is connected, first solenoid directional control valve 15, second solenoid directional control valve 16, 3rd solenoid directional control valve 17 is in order to control the connection of each cylinder, be three cylinder series connection shown in figure, now total step-down ratio of system is 1/30, pressurized gas in high pressure tank 1 carry out one-level decompression through first order depressurized system, the post-decompression gas of one-level passes into second level depressurized system again and carries out second depressurized, gas after second depressurized passes into third level depressurized system again and carries out three grades of decompressions, when in high pressure tank 1, gas pressure is 21-30MPa, outlet gas pressure is 0.7-1Mpa.In use, along with the consumption of gas in high pressure tank 1, the pressure of gas can reduce gradually, the pressure inductor 2 be now arranged on high pressure tank 1 can by pressure signal input control device 18, controller 18 is according to program control first solenoid directional control valve 15 of setting, second solenoid directional control valve 16, the switching of the 3rd solenoid directional control valve 17 changes pipeline and connects, as when high pressure tank 1 internal pressure drops to 12-21Mpa, first solenoid directional control valve 15 is switched to left position by control system, then first order depressurized system leaves unused, in high pressure tank 1, gas directly enters second level depressurized system, second level depressurized system becomes one-level gas depressurized system, third level depressurized system becomes second depressurized system, now total step-down ratio of system is 1/15, outlet gas pressure is 0.8-1.4MPa.So first determine the Placement of gas with various pressure lower cylinder, and by it stored in program, control the link between solenoid directional control valve automatic switchover cylinder by controller 18 in the course of the work.Utilize the decompressor designed by the present invention, in high pressure tank 1 in the changing situation of gas pressure, outlet gas pressure all remains in stability range.
Claims (1)
1. a cubical expansion formula high pressure air reducing system, comprises high pressure tank (1), pressure inductor (2), the first solenoid directional control valve (15), the second solenoid directional control valve (16), the 3rd solenoid directional control valve (17), first order depressurized system, second level depressurized system, third level depressurized system and controller (18), it is characterized in that: high pressure tank (1) outlet installation pressure inductor (2), be connected by the single-pass end of air pipe with the first solenoid directional control valve (15) again, first port (19) of the first solenoid directional control valve (15) bilateral end is connected by the single-pass end of air pipe with the second solenoid directional control valve (16), second port (20) of the first solenoid directional control valve (15) bilateral end is connected with the first depressurized system by air pipe, first port (21) of the second solenoid directional control valve (16) bilateral end is connected by the single-pass end of air pipe with the 3rd solenoid directional control valve (17), second port (22) of the second solenoid directional control valve (16) bilateral end is connected with the second depressurized system by air pipe, first port (23) of the 3rd solenoid directional control valve (17) bilateral end connects an air pipe, as the air outlet of depressed gas, second port (24) of the 3rd solenoid directional control valve (17) bilateral end is connected with the 3rd depressurized system by air pipe, pressure inductor (2), first order depressurized system, second level depressurized system, third level depressurized system, the first solenoid directional control valve (15), the second solenoid directional control valve (16) are connected with controller (18) respectively by wire with the 3rd solenoid directional control valve (17), for transferring signals to controller (18),
First order depressurized system comprises the first cylinder (3), the first electromagnetic inductor (6), the 4th electromagnetic inductor (9) and the first electromagnetic switch valve (12), 4th electromagnetic inductor (9) is fixed by bolts to the rodless cavity top of the first cylinder (3) outer wall, and the first electromagnetic inductor (6) is fixed by bolts to the first cylinder (3) outer wall distance position, rod chamber top 1/4; First electromagnetic switch valve (12) is connected by the rodless cavity of air pipe one end with the first cylinder (3), the other end is connected with the rod chamber of the first cylinder (3), the air pipe be connected separates arm be connected with second port (20) of the first solenoid directional control valve (15) bilateral end with the rod chamber of the first cylinder (3); The rodless cavity of the first cylinder (3) by air pipe be connected the air pipe of the first solenoid directional control valve (15) with the second solenoid directional control valve (16) and be connected; First electromagnetic inductor (6), the 4th electromagnetic inductor (9) are connected with controller (18) by wire respectively with the first electromagnetic switch valve (12); The rodless cavity of the first cylinder (3) and the outer wall top of rod chamber are all near end cap;
Second level depressurized system comprises the second cylinder (4), the second electromagnetic inductor (7), the 5th electromagnetic inductor (10) and the second electromagnetic switch valve (13), 5th electromagnetic inductor (10) is fixed by bolts to the rodless cavity top of the second cylinder (4) outer wall, and the second electromagnetic inductor (7) is fixed by bolts to the second cylinder (4) outer wall distance position, rod chamber top 1/4; Second electromagnetic switch valve (13) is connected by the rodless cavity of air pipe one end with the second cylinder (4), the other end is connected with the rod chamber of the second cylinder (4), the air pipe be connected separates arm be connected with second port (22) of the second solenoid directional control valve (16) bilateral end with the rod chamber of the second cylinder (4); The rodless cavity of the second cylinder (4) by air pipe be connected the air pipe of the second solenoid directional control valve (16) with the 3rd solenoid directional control valve (17) and be connected; Second electromagnetic inductor (7), the 5th electromagnetic inductor (10) are connected with controller (18) by wire respectively with the second electromagnetic switch valve (13); The rodless cavity of the second cylinder (4) and the outer wall top of rod chamber are all near end cap;
Third level depressurized system comprises the 3rd cylinder (5), the 3rd electromagnetic inductor (8), the 6th electromagnetic inductor (11) and the 3rd electromagnetic switch valve (14), 6th electromagnetic inductor (11) is fixed by bolts to the rodless cavity top of the 3rd cylinder (5) outer wall, and the 3rd electromagnetic inductor (8) is fixed by bolts to the 3rd cylinder (5) outer wall distance position, rod chamber top 1/4; 3rd electromagnetic switch valve (14) is connected by the rodless cavity of air pipe one end with the 3rd cylinder (5), the other end is connected with the rod chamber of the 3rd cylinder (5), the air pipe be connected separates arm be connected with second port (24) of the 3rd solenoid directional control valve (17) bilateral end with the rod chamber of the 3rd cylinder (5); The rodless cavity of the 3rd cylinder (5) is connected by first port (23) of air pipe with the 3rd solenoid directional control valve (17) bilateral end; 3rd electromagnetic inductor (8), the 6th electromagnetic inductor (11) are connected with controller (18) by wire respectively with the 3rd electromagnetic switch valve (14); The rodless cavity of the 3rd cylinder (5) and the outer wall top of rod chamber are all near end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034472.4A CN103075376B (en) | 2013-01-30 | 2013-01-30 | Volume expansion type high-pressure gas decompressing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310034472.4A CN103075376B (en) | 2013-01-30 | 2013-01-30 | Volume expansion type high-pressure gas decompressing system |
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| Publication Number | Publication Date |
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| CN103075376A CN103075376A (en) | 2013-05-01 |
| CN103075376B true CN103075376B (en) | 2015-03-11 |
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| CN201310034472.4A Expired - Fee Related CN103075376B (en) | 2013-01-30 | 2013-01-30 | Volume expansion type high-pressure gas decompressing system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014194529A1 (en) * | 2013-06-08 | 2014-12-11 | Liu Chuping | Novel airflow pressure-reducing device and airflow pressure-reducing method |
| CN103867896A (en) * | 2014-03-14 | 2014-06-18 | 南京理工大学 | Constant pressure high-pressure gas decompression system |
| CN106744497A (en) * | 2016-12-23 | 2017-05-31 | 北京首钢国际工程技术有限公司 | Walking beam furnace walking machinery air pressure balance method |
Citations (4)
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|---|---|---|---|---|
| CN1383042A (en) * | 2002-05-24 | 2002-12-04 | 浙江大学 | Automatic controller for lowering pressure of high-pressure gas by volume expansion |
| US7140182B2 (en) * | 2004-06-14 | 2006-11-28 | Edward Lawrence Warren | Energy storing engine |
| CN202500838U (en) * | 2012-01-02 | 2012-10-24 | 北京爱社时代科技发展有限公司 | Remote controllable large-flow intelligent gas supercharging device |
| CN203067372U (en) * | 2013-01-30 | 2013-07-17 | 南京理工大学 | Volume expansion type high-pressure gas decompression system |
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2013
- 2013-01-30 CN CN201310034472.4A patent/CN103075376B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383042A (en) * | 2002-05-24 | 2002-12-04 | 浙江大学 | Automatic controller for lowering pressure of high-pressure gas by volume expansion |
| US7140182B2 (en) * | 2004-06-14 | 2006-11-28 | Edward Lawrence Warren | Energy storing engine |
| CN202500838U (en) * | 2012-01-02 | 2012-10-24 | 北京爱社时代科技发展有限公司 | Remote controllable large-flow intelligent gas supercharging device |
| CN203067372U (en) * | 2013-01-30 | 2013-07-17 | 南京理工大学 | Volume expansion type high-pressure gas decompression system |
Non-Patent Citations (1)
| Title |
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| 贾光政等.气动汽车能量控制系统研究.《浙江大学学报(工学版)》.2003,第37卷(第6期),第715-718页. * |
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