CN104676244A - Vehicle fuel gas recycling and supplying device - Google Patents
Vehicle fuel gas recycling and supplying device Download PDFInfo
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- CN104676244A CN104676244A CN201510071520.6A CN201510071520A CN104676244A CN 104676244 A CN104676244 A CN 104676244A CN 201510071520 A CN201510071520 A CN 201510071520A CN 104676244 A CN104676244 A CN 104676244A
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Abstract
The invention relates to a vehicle fuel gas recycling and supplying device. The vehicle fuel gas recycling and supplying device comprises a gas storage bottle, wherein the gas storage bottle is connected with a pressure relief pipeline communicated with a recycled gas bottle; the gas storage bottle is also communicated with a first gas supplying pipeline for supplying gas to a vehicle engine; a pressure maintaining pipeline is also arranged between the recycled gas bottle and the gas storage bottle, and is connected with an on-off valve in series, and by virtue of the on-off valve, the gas storage bottle is connected with the pressure maintaining pipeline when the gas pressure in the gas storage bottle is less than the minimum standard gas supply pressure, and the gas storage bottle is disconnected from the pressure maintaining pipeline when the gas pressure in the gas storage bottle is higher than the minimum standard gas supply pressure. When natural gas in the gas storage bottle is supplied to an engine for a period of time, and the gas pressure is less than the minimum standard gas supply pressure, recycled natural gas in the recycled gas bottle refills the gas storage bottle via the pressure maintaining pipeline so that the gas pressure in the gas storage bottle rises, and reaches the minimum standard gas supply pressure so as to supply gas to the engine; the natural gas in the recycled gas bottle is fully utilized, and the phenomenon of insufficient gas supply of the gas storage bottle is relieved maximally.
Description
Technical field
The present invention relates to a kind of vehicle fuel and reclaim air feeder.
Background technique
Along with environmental protection is more and more taken seriously, the slogan such as energy-saving and emission-reduction, environmental protection refer in daily life, and LNG gas vehicle is widely used due to its advantage such as Economy, the feature of environmental protection.LNG gas vehicle is by being provided by liquified natural gas power to complete traveling as fuel, its car body is generally provided with for the air cylinder of storing liquid rock gas, pressure piping, air supply system, safety system and pressure relief pipe etc.Wherein air cylinder has for the maximum standard air feed air pressure of motor air feed and minimum sandards air feed air pressure, when air pressure in air cylinder is greater than maximum standard air feed air pressure, air cylinder must be exitted pressure release, when air pressure in air cylinder is less than minimum sandards air feed air pressure, the combustion gas in air cylinder is not enough to motor air feed.LNG gas vehicle in actual use, in air cylinder, have LNG Liquefied natural gas and not to motor air feed time, air pressure in air cylinder can raise gradually, when being elevated to the maximum standard air feed air pressure of gas holder setting, safety valve in safety system can trigger and automatically open and carry out pressure release by pressure relief pipe, rock gas in air cylinder is discharged into the atmosphere, so just cause the waste of resource and the pollution of environment, because rock gas is inflammable gas, be directly released into like this in air and also cause very large potential safety hazard in any case, on the other hand, to open at safety valve and after discharging certain rock gas, air pressure in air cylinder can reduce and reach the pressure limit of safety valve, air cylinder by air supply system to motor air feed time, pressure in air cylinder can directly decline, air pressure in air cylinder is reduced to the barometric minimum needed for motor air feed, namely during minimum sandards air feed air pressure, often cause motor for the phenomenon of unsaturated vapor, cause vehicle power not enough, this is also quite dangerous in the running process of vehicle, also unnecessary accident is likely caused in some particular row turner journeys, for this situation, current solution be by arrange on car body the air pressure of pressure piping in air cylinder not enough time supercharging is carried out with air feed to motor to it, but because some rock gas is released in air, this just fundamentally decreases the total journey of traveling of vehicle, or certain problem and trouble can be brought to driver, and in order to avoid wasting rock gas from pressure release, existing LNG gas vehicle is generally just directly use after charging combustion gas, namely fill and namely use, this just greatly reduces the use flexibility of fuel gas vehicle.
Authorization Notice No. is that the Chinese utility model patent of CN201844195U discloses the energy-conservation of a kind of LNGV automobile methane recovery recycling, environmental protection, safety installations, this device mainly provides a kind of steel cylinder being connected on vehicle gas holder pressure relief pipe end, the composite material for adsorptive gaseous rock gas is placed with in steel cylinder, steel cylinder top is provided with the relief opening be communicated with vehicle motor, one-way valve and balace weight is provided with between relief opening and motor, bottom is provided with the suction port be communicated with pressure relief pipe, state rock gas can be put into steel cylinder when pressure release opened by safety valve, in engine operation but relief opening outer end produce negative pressure time, rock gas in steel cylinder can directly by one-way valve to motor air feed.This device solves the problems such as the resource waste and pollution environment that fuel gas vehicle causes from pressure release to a certain extent, but this device cannot select when reality uses by air cylinder to motor air feed or by steel cylinder to motor air feed, both cause again air feed control system more complicated to motor air feed simultaneously, the problem that supply air line easily breaks down, when rock gas in steel cylinder reduces to motor air feed a period of time air pressure and one-way valve can not be made to open, rock gas in steel cylinder can not continue to motor air feed, this part rock gas existed in steel cylinder has just wasted, simultaneously, the packing material of this interior of steel bottle substantially increases manufacture cost, also need after using a period of time to change packing material, user cost is also higher, energy-conservation requirement is not met from the side yet.
Summary of the invention
The object of the present invention is to provide and a kind ofly compared with prior art can reclaim air feeder to the vehicle fuel of motor air feed by the recovery rock gas fully, in the recovery gas cylinder of Appropriate application.
Vehicle fuel of the present invention reclaims air feeder and adopts following technological scheme: a kind of vehicle fuel reclaims air feeder, comprise air cylinder, described air cylinder is connected with pressure relief pipe, described pressure relief pipe is communicated with recovery gas cylinder, described air cylinder is also communicated with for the first supply air line to vehicle motor air feed, pressurize pipeline is also provided with between described recovery gas cylinder and air cylinder, described pressurize pipeline is in series with air pressure in air cylinder lower than conducting pressurize pipeline during minimum sandards air feed air pressure, air pressure in air cylinder is higher than the on-off valve disconnecting pressurize pipeline during minimum sandards air feed air pressure.
The reduction valve of the pressure in air cylinder is stablized when described pressurize pipeline being in series with for the gas flow air cylinder in recovery gas cylinder and pressurize is carried out to air cylinder.
Described pressure relief pipe is in series with for the controller controlling pressure relief pipe conducting or cut-off, described controller is connected with the suction booster being filled with by this portion of natural gas high pressure when discharging for the rock gas in air cylinder and reclaiming gas cylinder.
Described recovery gas cylinder is communicated with the second supply air line, described second supply air line is communicated with the first supply air line, described second supply air line is in series with reclaiming conducting second supply air line when the air pressure in gas cylinder is greater than setting value, disconnect the control valve of the second supply air line when reclaiming the air pressure in gas cylinder and being less than setting value, described setting value is higher than maximum standard air feed air pressure.
Vehicle fuel of the present invention reclaims between the recovery gas cylinder of air feeder and air cylinder and has also been arranged in parallel pressurize pipeline with pressure relief pipe, rock gas like this in steel cylinder to motor air feed a period of time air pressure reduce and rock gas in air cylinder to air pressure after motor air feed a period of time lower than minimum sandards air feed air pressure time, by pressurize pipeline, the recovery rock gas reclaimed in gas cylinder is refilled in air cylinder to make the air pressure of air cylinder raise and to reach minimum sandards air feed air pressure, with can to motor air feed, take full advantage of the rock gas reclaimed in gas cylinder, and alleviate the phenomenon of air cylinder for unsaturated vapor to the full extent.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of vehicle fuel of the present invention reclaims air feeder embodiment.
Embodiment
A kind of vehicle fuel of the present invention reclaims the embodiment of air feeder: comprise the air cylinder 1 for storing liquid rock gas, air cylinder 1 to be communicated with motor by the first supply air line and for carrying out air feed to motor, first supply air line is in series with the vaporizer 4 for liquified natural gas being converted into gaseous natural gas and one-way valve 71, air cylinder is also communicated with pressure relief pipe, liquified natural gas in air cylinder be heated or cause because of the change of other working environments vaporization and pressure raise time discharge from pressure relief pipe, to ensure the pressure stability in gas holder, in a safe condition, environmental pollution and the wasting of resources is caused in order to avoid this part gaseous natural gas of discharging from pressure relief pipe is not directly disposed in air, pressure relief pipe is also communicated with the recovery gas cylinder 2 for reclaiming this part pressure release rock gas, between air cylinder 1 and recovery gas cylinder 2 except being communicated with pressure relief pipe, also be communicated with pressurize pipeline, at gas holder by the first supply air line to after motor air feed a period of time, along with the minimizing of the rock gas of air cylinder inside, the air pressure of its inside also can decrease, when being reduced under minimum sandards air feed air pressure, air cylinder just can not well to motor air feed, there is the problem for unsaturated vapor, the direct traveling affecting vehicle, now, reclaiming gas cylinder can by being filled with rock gas to ensure that pressure in air cylinder is on minimum sandards air feed air pressure in pressure maintaining pipe road direction air cylinder, alleviate air cylinder to the phenomenon of motor for unsaturated vapor, in order to reclaim gas cylinder to air cylinder air feed when the air pressure realized in air cylinder is less than minimum sandards air feed air pressure, air pressure in air cylinder is higher than reclaiming gas cylinder during minimum sandards air feed air pressure not to air cylinder air feed, pressurize pipeline is in series with on-off valve 9, on-off valve preferably selects pilot type switching valve, pilot type switching valve can realize cut-offfing and conducting by the air pressure of air cylinder automatically, certainly, also other can be selected can to realize other valves of said function and effect, or pass through the unlatching of artificial directly control valve with closed.Further, in order to ensure to reclaim gas cylinder when to the pressurize of air cylinder air feed, the pressure in air cylinder can keep stable, in other embodiments, pressurize pipeline can arrange reduction valve 11 between on-off valve and air cylinder.
In the present embodiment, air cylinder is communicated with by pressure relief pipe with recovery gas cylinder, during in order to ensure that air pressure only in air cylinder is higher than maximum standard air feed air pressure, the rock gas of its inside just can be discharged from pressure relief pipe, in other embodiments, preferably can pass through point connection interface 61 series controller 5 on pressure relief pipe, controller 5 is preferably Stress control time delay relay, controller 5 is communicated with suction booster 3, when air pressure in air cylinder increases and is greater than maximum standard air feed air pressure, controller controls pressure relief pipe conducting makes rock gas discharge, control suction booster 3 works and is filled with in recovery gas cylinder by this part natural gas high pressure of discharging simultaneously, like this when air cylinder is for unsaturated vapor, the high-pressure gas that high pressure reclaims in gas cylinder can carry out pressurize to air cylinder, when air pressure decline in air cylinder is not more than maximum mark air pressure, controller control pressure relief pipe is closed and is controlled suction booster and quits work, certainly, from pressure relief pipe, air cylinder is returned in order to prevent the high-pressure natural gas reclaimed in gas cylinder, pressure relief pipe is also provided with from air cylinder to the one-way valve 72 reclaiming gas cylinder direction one-way conduction.
In order to the rock gas reclaiming and reclaim in gas cylinder can be utilized reasonably, fully, preferred embodiment that recovery gas cylinder and the first supply air line are connected together by the second supply air line, and reclaim the second supply air line between gas cylinder and supply air line connects control valve 8 and reduction valve 12, wherein one-way valve 71 is mainly in order to prevent the pressurized gas reclaimed in gas cylinder from getting back in air cylinder by the first supply air line, and reduction valve 12 is in order to steady to pressure during supply air line air feed at recovery gas cylinder.In preferred embodiment as shown in Figure 1, control valve 8 reclaims the conducting between gas cylinder and supply air line and disconnection for controlling, when the natural gas high pressure that needs are discharged is poured in recovery gas cylinder 2 by pressure relief pipe and suction booster 3 by air cylinder 1, air pressure in recovery gas cylinder 2 is far away higher than maximum standard air feed air pressure and higher than setting value, wherein, setting value refers to the cracking pressure of control valve 8, setting value can regulate according to actual service condition, now, control valve 8 controls the second supply air line conducting and directly passes through to reclaim gas cylinder to motor air feed, when reclaiming gas cylinder air feed a period of time and its internal pressure lower than setting value, control valve controls the second supply air line and disconnects stopping air feed, now, by air cylinder 1 by supply air line and vaporizer 4 to motor air feed, when in air cylinder air feed a period of time, the air pressure of its inside is lower than minimum sandards air feed air pressure, pilot type switching valve automatic conducting pressure maintaining pipe road, air pressure inside to be poured in air cylinder much larger than the rock gas in the recovery gas cylinder of minimum sandards air feed air pressure and makes the air pressure in air cylinder be between minimum sandards air feed air pressure and maximum standard air feed air pressure, air cylinder is kept to continue through supply air line and vaporizer to motor air feed, so also just alleviate air cylinder to the phenomenon of motor for unsaturated vapor, simultaneously, the recovery rock gas reclaimed in gas cylinder can obtain reasonably according to different supply gas pressures, sufficient utilization.
In the present embodiment, when reclaiming gas cylinder to motor air feed, air cylinder is not to motor air feed, and after recovery gas cylinder air feed terminates, air cylinder just carries out air feed to motor, be convenient to like this control motor air feed, certainly, in other embodiments, recovery gas cylinder and air cylinder can use flexibly, simultaneously also passable to motor air feed, the present embodiment only provides a kind of preferred version.
Vehicle fuel of the present invention reclaims air feeder and not only avoids Some gases is entered befouling environment in air, waste resource by gas vehicle problem because needing pressure release, also solve gas vehicle namely to rush and namely use, can not after having rushed combustion gas long-time no problem, meanwhile, this combustion gas reclaiming system structure is simple, produces, user cost is lower, not fragile, fully, reasonably can utilize the recovery combustion gas of reclaiming in gas cylinder, effectively alleviate the problem of motor for unsaturated vapor, applicability is stronger.
Claims (4)
1. a vehicle fuel reclaims air feeder, comprise air cylinder, described air cylinder is connected with pressure relief pipe, described pressure relief pipe is communicated with recovery gas cylinder, it is characterized in that, described air cylinder is also communicated with for the first supply air line to vehicle motor air feed, also be provided with pressurize pipeline between described recovery gas cylinder and air cylinder, described pressurize pipeline be in series with air pressure in air cylinder lower than conducting pressurize pipeline during minimum sandards air feed air pressure, air pressure in air cylinder higher than the on-off valve disconnecting pressurize pipeline during minimum sandards air feed air pressure.
2. vehicle fuel according to claim 1 reclaims air feeder, it is characterized in that, stablizes the reduction valve of the pressure in air cylinder when described pressurize pipeline being in series with for the gas flow air cylinder in recovery gas cylinder and carrying out pressurize to air cylinder.
3. vehicle fuel according to claim 2 reclaims air feeder, it is characterized in that, described pressure relief pipe is in series with for the controller controlling pressure relief pipe conducting or cut-off, described controller is connected with the suction booster being filled with by this portion of natural gas high pressure when discharging for the rock gas in air cylinder and reclaiming gas cylinder.
4. the vehicle fuel according to claim 1-3 any one reclaims air feeder, it is characterized in that, described recovery gas cylinder is communicated with the second supply air line, described second supply air line is communicated with the first supply air line, described second supply air line is in series with reclaiming conducting second supply air line when the air pressure in gas cylinder is greater than setting value, disconnect the control valve of the second supply air line when reclaiming the air pressure in gas cylinder and being less than setting value, described setting value is higher than maximum standard air feed air pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071520.6A CN104676244A (en) | 2015-02-11 | 2015-02-11 | Vehicle fuel gas recycling and supplying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071520.6A CN104676244A (en) | 2015-02-11 | 2015-02-11 | Vehicle fuel gas recycling and supplying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104676244A true CN104676244A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510071520.6A Pending CN104676244A (en) | 2015-02-11 | 2015-02-11 | Vehicle fuel gas recycling and supplying device |
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| CN (1) | CN104676244A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221930A (en) * | 2015-11-05 | 2016-01-06 | 江南工业集团有限公司 | Vehicular liquefied natural gas cylinder self-supercharging device |
| CN109595082A (en) * | 2018-12-29 | 2019-04-09 | 英嘉动力科技无锡有限公司 | A kind of gas collection processing system |
| CN114234048A (en) * | 2021-12-13 | 2022-03-25 | 中国核电工程有限公司 | Pressure maintaining type compressed air storage and supply device for nuclear power station |
| CN115264391A (en) * | 2022-07-15 | 2022-11-01 | 中国船舶科学研究中心 | Gaseous oxygen system applied to deep sea manned platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992020956A1 (en) * | 1991-05-11 | 1992-11-26 | Calor Air Separation Limited | Gas supply system |
| JP2003106498A (en) * | 2001-09-28 | 2003-04-09 | Toho Gas Co Ltd | Bog re-liquefaction and recovery system for lng tank |
| JP2010144878A (en) * | 2008-12-19 | 2010-07-01 | Ud Trucks Corp | Fuel storage device for lng vehicle |
| CN104033729A (en) * | 2014-06-21 | 2014-09-10 | 刘印同 | Pressure stabilizing device and method for vehicle-mounted liquefied gas cylinder |
| CN204629082U (en) * | 2015-02-11 | 2015-09-09 | 郑州宇通客车股份有限公司 | Vehicle fuel reclaims air feeder |
-
2015
- 2015-02-11 CN CN201510071520.6A patent/CN104676244A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992020956A1 (en) * | 1991-05-11 | 1992-11-26 | Calor Air Separation Limited | Gas supply system |
| JP2003106498A (en) * | 2001-09-28 | 2003-04-09 | Toho Gas Co Ltd | Bog re-liquefaction and recovery system for lng tank |
| JP2010144878A (en) * | 2008-12-19 | 2010-07-01 | Ud Trucks Corp | Fuel storage device for lng vehicle |
| CN104033729A (en) * | 2014-06-21 | 2014-09-10 | 刘印同 | Pressure stabilizing device and method for vehicle-mounted liquefied gas cylinder |
| CN204629082U (en) * | 2015-02-11 | 2015-09-09 | 郑州宇通客车股份有限公司 | Vehicle fuel reclaims air feeder |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221930A (en) * | 2015-11-05 | 2016-01-06 | 江南工业集团有限公司 | Vehicular liquefied natural gas cylinder self-supercharging device |
| CN109595082A (en) * | 2018-12-29 | 2019-04-09 | 英嘉动力科技无锡有限公司 | A kind of gas collection processing system |
| CN114234048A (en) * | 2021-12-13 | 2022-03-25 | 中国核电工程有限公司 | Pressure maintaining type compressed air storage and supply device for nuclear power station |
| CN114234048B (en) * | 2021-12-13 | 2024-02-06 | 中国核电工程有限公司 | Pressure-maintaining type compressed air storage and supply device for nuclear power station |
| CN115264391A (en) * | 2022-07-15 | 2022-11-01 | 中国船舶科学研究中心 | Gaseous oxygen system applied to deep sea manned platform |
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| PB01 | Publication | ||
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Application publication date: 20150603 |