CN203067372U - Volume expansion type high-pressure gas decompression system - Google Patents
Volume expansion type high-pressure gas decompression system Download PDFInfo
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- CN203067372U CN203067372U CN 201320050013 CN201320050013U CN203067372U CN 203067372 U CN203067372 U CN 203067372U CN 201320050013 CN201320050013 CN 201320050013 CN 201320050013 U CN201320050013 U CN 201320050013U CN 203067372 U CN203067372 U CN 203067372U
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Abstract
The utility model discloses a volume expansion type high-pressure gas decompression system, wherein a pressure sensor is mounted at the outlet of a high pressure gas storage tank; a first electromagnetic directional valve, a second electromagnetic directional valve and a third electromagnetic directional valve are connected through a gas conduit to form a main loop; a first level decompression system, a second level decompression system and a third level decompression system are connected to the main loop; in each level of decompression system, an electromagnetic sensor is mounted on the outer wall of a cylinder; an electromagnetic switch valve is connected with a rod port and a head port of the cylinder through the gas conduit; and meanwhile, pipe branches are respectively led out from the gas conduit close to the rod port and the head port and are connected to the main loop. When the volume expansion type high-pressure gas decompression system is used for the decompression of a high-pressure gas, the energy loss in the decompression process can be reduced effectively, the heat exchange can be performed on the gas and the external world for a long time in the decompression process, and the internal energy of gas can be increased.
Description
Technical field
The utility model relates to a kind of low-loss high pressure air reducing system field, the system that the pressurized gas that store in particular for Pneumatic automobile reduce pressure.
Background technique
Nowadays, along with the exhaustion day by day of oil in the world, traditional automobile faces the challenge, and according to estimates, according to present exploitation rate, the petroleum resources in the whole world will be in the middle of this century exhaustion.So the new energy power vehicle is paid close attention to by people day by day, wherein Pneumatic automobile has bright development prospect.Pneumatic automobile as power source, drives automobile thereby order about the air motor motion with pressurized gas.The volume of gas storage tank that Pneumatic automobile carries is limited, in order to improve stored energy, prolongs distance travelled, and the gas pressure of storage is up to tens MPas, and the working pressure of air motor is usually 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 pass through aperture or slit, reduces gas pressure in the mode that increases gas friction, and expenditure and pressure is easy to realize, but can brings irreversible energy loss to gas.Chinese patent CN101201127A has proposed a kind of secondary gas decompressor, guarantee to export the stability of air pressure by feedback regulation, but it still adopts the mode of throttling to reduce gas pressure, causes the gas energy loss, has reduced the utilization ratio of system capacity.
Summary of the invention
The purpose of this utility model is to provide a kind of cubical expansion formula high pressure air reducing system, can realize the decompression of pressurized gas longspan, and post-decompression pressure is fluctuateed in relatively more among a small circle, reduce the energy loss in the high pressure air reducing process simultaneously greatly.
The technical solution that realizes the utility model purpose is: a kind of cubical expansion formula high pressure air reducing system comprises high pressure tank, pressure inductor, first solenoid directional control valve, 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.A pressure inductor is installed in the high pressure tank outlet, be connected with the single-pass end of 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 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 with the single-pass end of the 3rd solenoid directional control valve by air pipe, second port of the second solenoid directional control valve bilateral end is connected with 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, first solenoid directional control valve, second solenoid directional control valve and the 3rd solenoid directional control valve are connected with controller by lead respectively, are used for transferring signals to controller.
The utility model compared with prior art, its remarkable advantage: (1) the utility model adopts multistage step-down, under the situation of gas tank pressure change, can pass through sensor feedback control, with the cylinder combined serial of different vacuum ratio or use separately, thereby guarantee that outlet pressure is stable within the specific limits; The gas expansion institute work overwhelming majority is used for the gas of rod chamber is pushed back to gas tank or higher level's cylinder when (2) reducing pressure, and energy loss is less; (3) the pressurized gas process that flows is controlled by switch valve, compares the expenditure and pressure mode, and energy loss is less; (4) in decompression process, might adopt heat exchange method to absorb outside energy, be conducive to improve the system capacity utilization ratio.
Description of drawings
Fig. 1 is a kind of expansion high pressure air reducing system schematic that the utility model proposes.
Fig. 2 is single-stage pressure reducing system schematic of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
In conjunction with Fig. 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.A pressure inductor 2 is installed in high pressure tank 1 outlet, be connected by the single-pass end of air pipe with first solenoid directional control valve 15 again, first port one 9 of first solenoid directional control valve, 15 bilateral ends is connected by the single-pass end of air pipe with second solenoid directional control valve 16, second port 20 of first solenoid directional control valve, 15 bilateral ends is connected with first order depressurized system by air pipe, first port 21 of second solenoid directional control valve, 16 bilateral ends is connected by the single-pass end of air pipe with the 3rd solenoid directional control valve 17, second port 22 of second solenoid directional control valve, 16 bilateral ends is connected with second level depressurized system by air pipe, first port 23 of the 3rd solenoid directional control valve 17 bilateral ends connects an air pipe, as the air outlet of depressed gas, second port 24 of the 3rd solenoid directional control valve 17 bilateral ends 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, first solenoid directional control valve 15, second solenoid directional control valve 16 and the 3rd solenoid directional control valve 17 are connected with controller 18 by lead respectively, are used for transferring signals to controller.
In conjunction with Fig. 2, first order depressurized system comprises first cylinder 3, first electromagnetic inductor 6, the 4th electromagnetic inductor 9 and first electromagnetic switch valve 12, the 4th electromagnetic inductor 9 is fixed by bolts to the rodless cavity top of first cylinder, 3 outer walls, and first electromagnetic inductor 6 is fixed by bolts to first cylinder, 3 outer walls apart from 1/4 position, rod chamber top.First electromagnetic switch valve 12 is connected with the rodless cavity of first cylinder 3 by air pipe one end, the other end is connected with the rod chamber of first cylinder 3, and tells arm on the air pipe that the rod chamber of first cylinder 3 is connected and is connected with second port 20 of first solenoid directional control valve, 15 bilateral ends.The rodless cavity of first cylinder 3 links to each other with the air pipe that is connected first solenoid directional control valve 15 and second solenoid directional control valve 16 by air pipe.First electromagnetic inductor 6, the 4th electromagnetic inductor 9 and first electromagnetic switch valve 12 are connected with controller 18 respectively by lead.The outer wall top of the rodless cavity of first cylinder 3 and rod chamber is all near end cap.
Second level depressurized system comprises second cylinder 4, second electromagnetic inductor 7, the 5th electromagnetic inductor 10 and second electromagnetic switch valve 13, the 5th electromagnetic inductor 10 is fixed by bolts to the rodless cavity top of second cylinder, 4 outer walls, and second electromagnetic inductor 7 is fixed by bolts to second cylinder, 4 outer walls apart from 1/4 position, rod chamber top.Second electromagnetic switch valve 13 is connected with the rodless cavity of second cylinder 4 by air pipe one end, the other end is connected with the rod chamber of second cylinder 4, and tells arm on the air pipe that the rod chamber of second cylinder 4 is connected and is connected with second port 22 of second solenoid directional control valve, 16 bilateral ends.The rodless cavity of second cylinder 4 links to each other with the air pipe that is connected second solenoid directional control valve 16 and the 3rd solenoid directional control valve 17 by air pipe.Second electromagnetic inductor 7, the 5th electromagnetic inductor 10 and second electromagnetic switch valve 13 are connected with controller 18 respectively by lead.The outer wall top of the rodless cavity of second cylinder 4 and rod chamber is 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, the 6th electromagnetic inductor 11 is fixed by bolts to the rodless cavity top of the 3rd cylinder 5 outer walls, and the 3rd electromagnetic inductor 8 is fixed by bolts to the 3rd cylinder 5 outer walls apart from 1/4 position, rod chamber top.The 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, and tells arm on the air pipe that the rod chamber of the 3rd cylinder 5 is connected and is connected with second port 24 of the 3rd solenoid directional control valve 17 bilateral ends.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 ends.The 3rd electromagnetic inductor 8, the 6th electromagnetic inductor 11 and the 3rd electromagnetic switch valve 14 are connected with controller 18 respectively by lead.The outer wall top of the rodless cavity of the 3rd cylinder 5 and rod chamber is all near end cap.
Working procedure of the present utility model is as follows:
In the course of the work, first order depressurized system, second level depressurized system, third level depressurized system can the single-stage pressure reducing system works, can the two-stage decompression system work simultaneously, also can work simultaneously by three grades of depressurized systems.
Gas in the high pressure tank 1 has two kinds of results after by first solenoid directional control valve 15: the one, and enter first order depressurized system and reduce pressure, and post-decompression gas is fed second solenoid directional control valve 16, two, directly feeding second solenoid directional control valve 16; Gas has two kinds of results after by second solenoid directional control valve 16: the one, and enter second level depressurized system and reduce pressure, and post-decompression gas is fed the 3rd solenoid directional control valve 17, two, directly feed the 3rd solenoid directional control valve 17; Gas has two kinds of results after by the 3rd solenoid directional control valve 17: the one, and enter third level depressurized system and reduce pressure, and post-decompression gas is derived, use as final post-decompression gas, the 2nd, direct derivation is used as final post-decompression gas.
Participate in the process of decompression at first order depressurized system, the rod chamber of first cylinder 3 keeps being communicated with gas holder all the time.When work, discharge along with gas in the 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, the 4th electromagnetic inductor 9 is excited, and outgoing signal is opened first electromagnetic switch valve 12, pressurized gas in the gas holder enter rodless cavity fast and free expansion promotion piston moves to first electromagnetic inductor 6, when piston moves a segment distance, excite first electromagnetic inductor 6, outgoing signal is closed first electromagnetic switch valve 12, and the gas in the rodless cavity reaches state of equilibrium by the free expansion decompression and is exported as post-decompression gas, so circulation.
Participate in the process of decompression at second level depressurized system, the rod chamber of second cylinder 4 keeps being communicated with rodless cavity or the gas holder of the cylinder of upper level depressurized system all the time.When work, discharge along with gas in the 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, the 5th electromagnetic inductor 10 is excited, and outgoing signal is opened second electromagnetic switch valve 13, pressurized gas in the gas holder enter rodless cavity fast and free expansion promotion piston moves to second electromagnetic inductor 7, when piston moves a segment distance, excite second electromagnetic inductor 7, outgoing signal is closed second electromagnetic switch valve 13, and the gas in the rodless cavity reaches state of equilibrium by the free expansion decompression and is exported as post-decompression gas, so circulation.
Participate in the process of decompression at third level depressurized system, the rod chamber of the 3rd cylinder 5 keeps being communicated with rodless cavity or the gas holder of the cylinder of upper level depressurized system all the time.When work, discharge along with gas in the 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, the 6th electromagnetic inductor 11 is excited, and outgoing signal is opened the 3rd electromagnetic switch valve 14, pressurized gas in the 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, outgoing signal is closed the 3rd electromagnetic switch valve 14, and the gas in the rodless cavity reaches state of equilibrium by the free expansion decompression and is exported as post-decompression gas, so circulation.
Embodiment:
Be pressurized gas in the high pressure tank 1, set when initial, gas pressure is 30Mpa in the high pressure tank 1, for the air outlet gas pressure is maintained about 1MPa, Pressure reducing ratio is respectively 1/2,1/3,1/5 first cylinder 3, second cylinder 4,5 series connection of the 3rd cylinder, first solenoid directional control valve 15, second solenoid directional control valve 16, the 3rd solenoid directional control valve 17 is in order to control the connection of each cylinder, be three cylinder series connection shown in the figure, this moment, total step-down ratio of system was 1/30, pressurized gas in the high pressure tank 1 carry out the one-level decompression through first order depressurized system, the post-decompression gas of one-level feeds second level depressurized system again and carries out second depressurized, gas after the second depressurized feeds third level depressurized system again and carries out three grades of decompressions, when gas pressure was 21-30MPa in high pressure tank 1, exit gas pressure was 0.7-1Mpa.In use, consumption along with gas in the high pressure tank 1, the pressure of gas can reduce gradually, the pressure inductor 2 that is installed in this moment on the high pressure tank 1 can be imported controller 18 with pressure signal, controller 18 is according to program control first solenoid directional control valve of setting 15, 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, control system is switched to position, a left side with first solenoid directional control valve 15, then first order depressurized system is idle, gas directly enters second level depressurized system in the high pressure tank 1, second level depressurized system becomes one-level gas depressurized system, third level depressurized system becomes the second depressurized system, this moment, total step-down ratio of system was 1/15, and exit gas pressure is 0.8-1.4MPa.So determine the Placement of gas with various pressure lower cylinder earlier, and it deposited in the program, in the course of the work by the link between the controller 18 control solenoid directional control valve automatic switchover cylinders.Utilize the designed decompressor of the utility model, under the changing situation of gas pressure, exit gas pressure all remains in the stability range in high pressure tank 1.
Claims (4)
1. a 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); It is characterized in that: a pressure inductor (2) is installed in high pressure tank (1) outlet, be connected by the single-pass end of air pipe with first solenoid directional control valve (15) again, first port (19) of first solenoid directional control valve (15) bilateral end is connected by the single-pass end of air pipe with second solenoid directional control valve (16), second port (20) of first solenoid directional control valve (15) bilateral end is connected with first depressurized system by air pipe, first port (21) of 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 second solenoid directional control valve (16) bilateral end is connected with 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, first solenoid directional control valve (15), second solenoid directional control valve (16) and the 3rd solenoid directional control valve (17) are connected with controller (18) by lead respectively, are used for transferring signals to controller (18).
2. a kind of cubical expansion formula high pressure air reducing according to claim 1 system, it is characterized in that: first order depressurized system comprises first cylinder (3), first electromagnetic inductor (6), the 4th electromagnetic inductor (9) and first electromagnetic switch valve (12), the 4th electromagnetic inductor (9) is fixed by bolts to the rodless cavity top of first cylinder (3) outer wall, and first electromagnetic inductor (6) is fixed by bolts to first cylinder (3) outer wall apart from 1/4 position, rod chamber top; First electromagnetic switch valve (12) is connected with the rodless cavity of first cylinder (3) by air pipe one end, the other end is connected with the rod chamber of first cylinder (3), and tells arm on the air pipe that the rod chamber of first cylinder (3) is connected and is connected with second port (20) of first solenoid directional control valve (15) bilateral end; The rodless cavity of first cylinder (3) by air pipe be connected the air pipe of first solenoid directional control valve (15) with second solenoid directional control valve (16) and link to each other; First electromagnetic inductor (6), the 4th electromagnetic inductor (9) and first electromagnetic switch valve (12) are connected with controller (18) respectively by lead; The rodless cavity of first cylinder (3) and the outer wall top of rod chamber are all near end cap.
3. a kind of cubical expansion formula high pressure air reducing according to claim 1 system, it is characterized in that: second level depressurized system comprises second cylinder (4), second electromagnetic inductor (7), the 5th electromagnetic inductor (10) and second electromagnetic switch valve (13), the 5th electromagnetic inductor (10) is fixed by bolts to the rodless cavity top of second cylinder (4) outer wall, and second electromagnetic inductor (7) is fixed by bolts to second cylinder (4) outer wall apart from 1/4 position, rod chamber top; Second electromagnetic switch valve (13) is connected with the rodless cavity of second cylinder (4) by air pipe one end, the other end is connected with the rod chamber of second cylinder (4), and tells arm on the air pipe that the rod chamber of second cylinder (4) is connected and is connected with second port (22) of second solenoid directional control valve (16) bilateral end; The rodless cavity of second cylinder (4) by air pipe be connected the air pipe of second solenoid directional control valve (16) with the 3rd solenoid directional control valve (17) and link to each other; Second electromagnetic inductor (7), the 5th electromagnetic inductor (10) and second electromagnetic switch valve (13) are connected with controller (18) respectively by lead; The rodless cavity of second cylinder (4) and the outer wall top of rod chamber are all near end cap.
4. a kind of cubical expansion formula high pressure air reducing according to claim 1 system, it is characterized in that: 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), the 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 apart from 1/4 position, rod chamber top; The 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), and tells arm on the air pipe that the rod chamber of the 3rd cylinder (5) is connected and is connected with second port (24) of the 3rd solenoid directional control valve (17) bilateral end; 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; The 3rd electromagnetic inductor (8), the 6th electromagnetic inductor (11) and the 3rd electromagnetic switch valve (14) are connected with controller (18) respectively by lead; 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 |
|---|---|---|---|
| CN 201320050013 CN203067372U (en) | 2013-01-30 | 2013-01-30 | Volume expansion type high-pressure gas decompression system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320050013 CN203067372U (en) | 2013-01-30 | 2013-01-30 | Volume expansion type high-pressure gas decompression system |
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| Publication Number | Publication Date |
|---|---|
| CN203067372U true CN203067372U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320050013 Expired - Fee Related CN203067372U (en) | 2013-01-30 | 2013-01-30 | Volume expansion type high-pressure gas decompression system |
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| Country | Link |
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| CN (1) | CN203067372U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075376A (en) * | 2013-01-30 | 2013-05-01 | 南京理工大学 | Volume expansion type high-pressure gas decompressing system |
| CN103867896A (en) * | 2014-03-14 | 2014-06-18 | 南京理工大学 | Constant pressure high-pressure gas decompression system |
-
2013
- 2013-01-30 CN CN 201320050013 patent/CN203067372U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075376A (en) * | 2013-01-30 | 2013-05-01 | 南京理工大学 | Volume expansion type high-pressure gas decompressing system |
| CN103075376B (en) * | 2013-01-30 | 2015-03-11 | 南京理工大学 | Volume expansion type high-pressure gas decompressing system |
| CN103867896A (en) * | 2014-03-14 | 2014-06-18 | 南京理工大学 | Constant pressure high-pressure gas decompression system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20150130 |
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| EXPY | Termination of patent right or utility model |