CN104266081A - Automobile gas filling sub-station for hydraulic natural gas - Google Patents
Automobile gas filling sub-station for hydraulic natural gas Download PDFInfo
- Publication number
- CN104266081A CN104266081A CN201410459316.7A CN201410459316A CN104266081A CN 104266081 A CN104266081 A CN 104266081A CN 201410459316 A CN201410459316 A CN 201410459316A CN 104266081 A CN104266081 A CN 104266081A
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- CN
- China
- Prior art keywords
- oil
- gas
- ball valve
- pneumatic ball
- interface
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- 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
Links
- 239000007789 gas Substances 0.000 title claims abstract description 72
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003345 natural gas Substances 0.000 title claims abstract description 16
- 238000005086 pumping Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 87
- 239000002828 fuel tank Substances 0.000 claims description 19
- 230000003139 buffering effect Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 230000000740 bleeding effect Effects 0.000 claims description 5
- 239000003063 flame retardant Substances 0.000 claims description 5
- 239000000346 nonvolatile oil Substances 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 7
- 239000000446 fuel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to an automobile gas filling sub-station for hydraulic natural gas. A magnetic floater turning plate liquid level meter of an oil tank, a fire diffusion prevention cap and an oil return detection pressure transmitter are fixed on the oil tank; the oil inlet end of an oil pumping system is communicated with the oil tank in a sealing mode, the oil outlet end of the oil pumping system is communicated with an interface a of an electromagnetic valve bridge circuit in the sealing mode, and the electromagnetic valve bridge circuit consists of a first pneumatic ball valve, a second pneumatic ball valve, a third pneumatic ball valve and a fourth pneumatic ball valve which can form a bridge type oil path by adopting the same principle of a bridge rectifier circuit which consists of four diodes; and an interface b of the electromagnetic valve bridge circuit is communicated with an oil inlet of a second gas bottle group by virtue of a second buffer energy accumulator, a second oil path pneumatic ball valve, a fourth oil path pneumatic ball valve and a sixth oil path pneumatic ball valve in the sealing mode, and the air outlet of the second gas bottle group is communicated with a selling gas interface by virtue of a second gas path pneumatic ball valve, a fourth gas path pneumatic ball valve and a sixth gas path pneumatic ball valve in the sealing mode. By adopting the automobile gas filling sub-station for the hydraulic natural gas, disclosed by the invention, the problems that the system is cut off in advance to cause unclean oil return, and the system is delayed to cut off to cause that the natural gas diffuses to an atmosphere can be solved.
Description
Technical field
The invention belongs to automobile secondary gas filling station, particularly a kind of automobile secondary gas filling station of hydraulic pressure rock gas.
Background technique
At present along with national energy-saving consumption reduction, the requirement reducing environmental pollution etc., the construction of CNG hydraulic pressure natural gas automobile secondary gas filling station has become the inexorable trend reducing haze, development clean energy resource.Rock gas is that colorless and odorless is nontoxic, calorific value is high, flameholding, clean environmental protection high-grade energy.Compression type rock gas (CNG) is as the alternative fuel of city bus, taxi, short-distance transport, and the lot of advantages such as it has low price, pollution-free obtain increasing application in the whole nation.When natural gas cylinder trailer is transported to the substation in city, by hydraulic natural gas automobile secondary gas filling station, by the hydraulic-pressure pump constantly supplementary pressure of equipment, rock gas in the trailer of substation is maintained working pressure, continuously add in the equipment of user and go, gas discharge wherein in a gas cylinder is complete, need oil return and repeatability carry out next pump oil action, when oil return closes to an end on the one hand, air-fuel mixture can enter fuel tank, by the exhaust stack of fuel tank, rock gas is slatterned by the mode of diffusing, directly affect gas consumption, on the other hand during equipment oil return, if terminate delayed, there will be outside oil spout or cause oil tank anti-explosion device to be opened, if terminate to cause oil return unclean in advance, equipment overbottom pressure crosses the problems such as high, these all can run equipment and produce misoperation, and Security reduces, and the unclean problem of spill strip gas and oil return affects the normal of equipment always and runs continuously.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of hydraulic pressure natural gas automobile secondary gas filling station, its first resolution system ends the unclean and delayed cut-off natural gas diffusion of oil return in advance to the problem in air; Second is achieve equipment the using and the reserved, automatically drop into and exit according to runnability, reaches energy-saving and cost-reducing effect; 3rd be equipment according to the mode of working alone, achieve and overhaul not stopping function.
The present invention solves the technological scheme that its technical problem takes: fixed oil tank magnetic float flap level gauge, fire-retardant bleeding cap and oil return detected pressures transmitter on fuel tank 1; First high pressure oil pump, the first pilot solenoid valve, the first one-way valve composition first via oil pumping system; Second high pressure oil pump, the second pilot solenoid valve, the second one-way valve forms the second road oil pumping system, and described first via oil pumping system is in parallel with the second road oil pumping system, composition oil pumping system; The oil inlet end of oil pumping system seals with described fuel tank and communicates, the oil outlet end of oil pumping system communicates with a sealing joint on solenoid valve bridge road, solenoid valve bridge route first--the 4th pneumatic ball valve composition, forms the bridge oil piping of the bridge rectifier same principle formed with four diodes; The b interface on solenoid valve bridge road by the second buffering accumulator, second, the 4th, the 6th oil circuit pneumatic ball valve to seal with the second gas cylinder group filler opening and communicates, the air outlet of the second gas cylinder group by the second, the 4th, the 6th gas circuit pneumatic ball valve with sell gas sealing joint and communicate.The c interface on solenoid valve bridge road by the first buffering accumulator, first, the 3rd, the 5th oil circuit pneumatic ball valve to seal with the filler opening of the first gas cylinder group and communicates, the air outlet of the first gas cylinder group by the first, the 3rd, the 5th gas circuit pneumatic ball valve with sell gas sealing joint and communicate; The d interface on solenoid valve bridge road to be sealed with described fuel tank by electromagnet cut off valve and communicates.
The present invention has following advantages: 1), equipment volume is little, and floor space is little, and structure is simple, is convenient to install; 2), Security is high, there is not equipment oil spout and overbottom pressure too high; 3), good energy-conserving effect, peak modulation capacity is strong, can run by double pump on aerating peak, when filling vehicle is not enough, can single pump operation; 4), gas taking rate is high, and in last bottle, residual voltage is not higher than 1MPa, is higher than the gas taking rate of 95%.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is principle of the invention figure.
Embodiment
As shown in Figure 1, fuel tank 1, first, second high pressure oil pump 2.1, 2.2, first, second pilot solenoid valve 3.1, 3.2, first, second one-way valve 4.1, 4.2, first--the 4th pneumatic ball valve 5.1, 5.2, 5.3, 5.4, first, second manual ball valve 6.1, 6.2, first, second buffering accumulator 7.1, 7.2, first, second fluid level transmitter 8.1, 8.2, first, second gas cylinder group 9.1, 9.2, first--the 6th oil circuit pneumatic ball valve 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, first--the 6th gas circuit pneumatic ball valve 11.1, 11.2, 11.3, 11.4, 11.5, 11.6, fuel tank magnetic float flap level gauge 12, fire-retardant bleeding cap 13, oil return detected pressures transmitter 14, electromagnet cut off valve 15, oil pressure transmitter 16, air pressure transmitter 17, sell gas interface 18.
Fixed oil tank magnetic float flap level gauge 12, fire-retardant bleeding cap 13 and oil return detected pressures transmitter 14 on fuel tank 1.First high pressure oil pump 2.1, first pilot solenoid valve 3.1, first one-way valve 4.1 forms first via oil pumping system; Second high pressure oil pump 2.2, second pilot solenoid valve 3.2, second one-way valve 4.2 forms the second road oil pumping system, and described first via oil pumping system is in parallel with the second road oil pumping system, composition oil pumping system.The oil inlet end of oil pumping system seals with described fuel tank 1 and communicates, the oil outlet end of oil pumping system communicates with a sealing joint on solenoid valve bridge road, solenoid valve bridge route first--the 4th pneumatic ball valve 5.1,5.2,5.3,5.4 forms, and forms the bridge oil piping of the bridge rectifier same principle formed with four diodes.The b interface on solenoid valve bridge road to be sealed with the second gas cylinder group 9.2 filler opening by the second buffering accumulator the 7.2, second, the 4th, the 6th oil circuit pneumatic ball valve 10.2,10.4,10.6 and communicates, the air outlet of the second gas cylinder group 9.2 by the second, the 4th, the 6th gas circuit pneumatic ball valve 11.2,11.4,11.6 with sell gas interface 18 and seal and communicate.The c interface on solenoid valve bridge road to be sealed with the filler opening of the first gas cylinder group 9.1 by the first buffering accumulator the 7.1, first, the 3rd, the 5th oil circuit pneumatic ball valve 10.1,10.3,10.5 and communicates, the air outlet of the first gas cylinder group 9.1 by the first, the 3rd, the 5th gas circuit pneumatic ball valve 11.1,11.3,11.5 with sell gas interface 18 and seal and communicate.The d interface on solenoid valve bridge road to be sealed with described fuel tank 1 by electromagnet cut off valve 15 and communicates.
Seal between the b interface on described solenoid valve bridge road and c interface and connect first, second manual ball valve 6.1,6.2, seal with described mailbox 1 between first, second manual ball valve 6.1,6.2 and communicate.
The oil outlet end of described oil pumping system is fixed with oil pressure transmitter 16.
In first, second described buffering accumulator 7.1,7.2, first, second fluid level transmitter 8.1,8.2 is housed respectively.
Described selling on gas interface 18 is fixed with air pressure transmitter 17.
Described first, second high pressure oil pump 2.1, 2.2, first, second pilot solenoid valve 3.1, 3.2, first--the 4th pneumatic ball valve 5.1, 5.2, 5.3, 5.4, first, second fluid level transmitter 8.1, 8.2, first--the 6th oil circuit pneumatic ball valve 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, first--the 6th gas circuit pneumatic ball valve 11.1, 11.2, 11.3, 11.4, 11.5, 11.6, fuel tank magnetic float flap level gauge 12, oil return detected pressures transmitter 14, electromagnet cut off valve 15, oil pressure transmitter 16, air pressure transmitter 17 is electrically connected with PLC (not shown in FIG.).
After system electrification, open first--the 6th gas circuit pneumatic ball valve 11.1,11.2,11.3,11.4,11.5,11.6, detect through air pressure transmitter 17 and turn back to PLC, PLC judges, when air pressure is lower than 20MPa, by the first or second high pressure oil pump 2.1,2.2, the hydraulic oil in fuel tank 1 is pumped in gas cylinder group 9.1 or 9.2, make the rock gas in gas cylinder group 9.1 or 9.2 remain on the pressure of 20 constant ~ 21MPa, then just can sell gas.When hydraulic oil pumps into 95% of single bottle volume in gas cylinder group 9.1 or 9.2, fuel tank magnetic float flap level gauge 12 sender, no longer continue pump oil in bottle, but rely on the air pressure of 20 ~ 21MPa5% rock gas of single bottle remnants of gas cylinder group 9.1 or 9.2 to start oil return, in oil return process, fluid level transmitter 8.1 or 8.2 detects the position that in buffering accumulator 7.1 or 7.2, liquid level declines, when oil level drops to the position of setting, PLC sends instruction cut-off oil return, gas can not get back to fuel tank, solves problem of oil return.The effect of fire-retardant bleeding cap 13 is converted into ventilation makes fuel tank air pressure balance by diffusing, and oil return detected pressures transmitter 14 can be used as second and heavily protects.
When the first high pressure oil pump 2.1 is for shortage of oil, PLC can open the second high pressure oil pump 2.2 automatically, simultaneously fuel feeding.When the first high pressure oil pump 2.1 fuel feeding is enough, the second high pressure oil pump 2.2 exits automatically, uses high pressure oil pump 2.1 fuel feeding separately, ensures utilization efficiency and save energy and reduce the cost.
Claims (6)
1. a hydraulic pressure natural gas automobile secondary gas filling station, is characterized in that: fuel tank (1) upper fixed oil tank magnetic float flap level gauge (12), fire-retardant bleeding cap (13) and oil return detected pressures transmitter (14); First high pressure oil pump (2.1), the first pilot solenoid valve (3.1), the first one-way valve (4.1) composition first via oil pumping system; Second high pressure oil pump (2.2), the second pilot solenoid valve (3.2), the second one-way valve (4.2) forms the second road oil pumping system, and described first via oil pumping system is in parallel with the second road oil pumping system, composition oil pumping system; The oil inlet end of oil pumping system seals with described fuel tank (1) and communicates, the oil outlet end of oil pumping system communicates with a sealing joint on solenoid valve bridge road, solenoid valve bridge route first--the 4th pneumatic ball valve (5.1,5.2,5.3,5.4) forms, and forms the bridge oil piping of the bridge rectifier same principle formed with four diodes; The b interface on solenoid valve bridge road by the second buffering accumulator (7.2), second, the 4th, the 6th oil circuit pneumatic ball valve (10.2,10.4,10.6) seals with the second gas cylinder group (9.2) filler opening and communicates, the air outlet of the second gas cylinder group (9.2) is passed through the second, the 4th, the 6th gas circuit pneumatic ball valve (11.2,11.4,11.6) and is sold gas interface (18) and seal and communicate; The c interface on solenoid valve bridge road by the first buffering accumulator (7.1), first, the 3rd, the 5th oil circuit pneumatic ball valve (10.1,10.3,10.5) seals with the filler opening of the first gas cylinder group (9.1) and communicates, the air outlet of the first gas cylinder group (9.1) is passed through the first, the 3rd, the 5th gas circuit pneumatic ball valve (11.1,11.3,11.5) and is sold gas interface (18) and seal and communicate; The d interface on solenoid valve bridge road is sealed with described fuel tank (1) by electromagnet cut off valve (15) and communicates.
2. hydraulic pressure natural gas automobile secondary gas filling station according to claim 1, it is characterized in that: seal between the b interface on described solenoid valve bridge road and c interface and connect first, second manual ball valve (6.1,6.2), communicate sealing with described mailbox (1) of first, second manual ball valve (6.1,6.2).
3. hydraulic pressure natural gas automobile secondary gas filling station according to claim 1, is characterized in that: the oil outlet end of described oil pumping system is fixed with oil pressure transmitter (16).
4. hydraulic pressure natural gas automobile secondary gas filling station according to claim 1, is characterized in that: in first, second described buffering accumulator (7.1,7.2), first, second fluid level transmitter (8.1,8.2) is housed respectively.
5. hydraulic pressure natural gas automobile secondary gas filling station according to claim 1, is characterized in that: described selling on gas interface (18) is fixed with air pressure transmitter (17).
6. hydraulic pressure natural gas automobile secondary gas filling station according to claim 1, it is characterized in that: described first, second high pressure oil pump (2.1, 2.2), first, second pilot solenoid valve (3.1, 3.2), first--the 4th pneumatic ball valve (5.1, 5.2, 5.3, 5.4), first, second fluid level transmitter (8.1, 8.2), first--the 6th oil circuit pneumatic ball valve (10.1, 10.2, 10.3, 10.4, 10.5, 10.6), first--the 6th gas circuit pneumatic ball valve (11.1, 11.2, 11.3, 11.4, 11.5, 11.6), fuel tank magnetic float flap level gauge (12), oil return detected pressures transmitter (14), electromagnet cut off valve (15), oil pressure transmitter (16), air pressure transmitter (17) is electrically connected with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459316.7A CN104266081B (en) | 2014-09-11 | 2014-09-11 | A kind of hydraulic pressure natural gas automobile secondary gas filling station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410459316.7A CN104266081B (en) | 2014-09-11 | 2014-09-11 | A kind of hydraulic pressure natural gas automobile secondary gas filling station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104266081A true CN104266081A (en) | 2015-01-07 |
| CN104266081B CN104266081B (en) | 2016-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410459316.7A Active CN104266081B (en) | 2014-09-11 | 2014-09-11 | A kind of hydraulic pressure natural gas automobile secondary gas filling station |
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| Country | Link |
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| CN (1) | CN104266081B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931305A (en) * | 2015-12-31 | 2017-07-07 | 安瑞科(廊坊)能源装备集成有限公司 | Air entraining substation Medium Oil compensation system and air entraining substation Medium Oil compensation method |
| CN108332047A (en) * | 2017-12-28 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of hydraulic substation |
| CN110131580A (en) * | 2019-05-05 | 2019-08-16 | 安瑞科(廊坊)能源装备集成有限公司 | Oil return system of hydraulic natural gas vehicle refueling substation |
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| CN203240277U (en) * | 2013-04-25 | 2013-10-16 | 重庆耐德能源装备集成有限公司 | Hydraulic piston type gas substation oil returning system |
-
2014
- 2014-09-11 CN CN201410459316.7A patent/CN104266081B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181289A (en) * | 2000-12-15 | 2002-06-26 | Nippon Sharyo Seizo Kaisha Ltd | Over-filling preventing system for high pressure gas tank truck |
| JP2004293752A (en) * | 2003-03-28 | 2004-10-21 | Tokyo Gas Co Ltd | Hydrogen filling apparatus and control method thereof |
| CN200999960Y (en) * | 2007-01-15 | 2008-01-02 | 四川金科环保科技有限公司 | Natural gas vehicle air entraining substation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931305A (en) * | 2015-12-31 | 2017-07-07 | 安瑞科(廊坊)能源装备集成有限公司 | Air entraining substation Medium Oil compensation system and air entraining substation Medium Oil compensation method |
| CN106931305B (en) * | 2015-12-31 | 2020-07-03 | 安瑞科(廊坊)能源装备集成有限公司 | Gas filling substation medium oil compensation system and gas filling substation medium oil compensation method |
| CN108332047A (en) * | 2017-12-28 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of hydraulic substation |
| CN108332047B (en) * | 2017-12-28 | 2023-09-19 | 天津良华新能源科技股份有限公司 | Hydraulic substation |
| CN110131580A (en) * | 2019-05-05 | 2019-08-16 | 安瑞科(廊坊)能源装备集成有限公司 | Oil return system of hydraulic natural gas vehicle refueling substation |
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| Publication number | Publication date |
|---|---|
| CN104266081B (en) | 2016-10-19 |
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