CN100558586C - Hydraulic natural gas automobile secondary gas filling station - Google Patents
Hydraulic natural gas automobile secondary gas filling station Download PDFInfo
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- CN100558586C CN100558586C CNB2008100551992A CN200810055199A CN100558586C CN 100558586 C CN100558586 C CN 100558586C CN B2008100551992 A CNB2008100551992 A CN B2008100551992A CN 200810055199 A CN200810055199 A CN 200810055199A CN 100558586 C CN100558586 C CN 100558586C
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Abstract
The present invention relates to a kind of hydraulic natural gas automobile secondary gas filling station, it comprises CNG substation trailer, the substation prying body, the PLC control housing, the general mood source device, fuel gas alarm and filling machine, be fixed with 8 independently pressure containers on the trailer of CNG substation, each pressure container front end is fixed pneumatic air outlet valve respectively, pneumatic inlet valve and pneumatic fuel-return valve that the rear end is fixed and connect respectively, pneumatic air outlet valve, pneumatic inlet valve and pneumatic fuel-return valve are respectively by pipeline and filling machine, the substation prying body is communicated with, and the substation prying body comprises prying body, wet tank, pressure charging system, media fluid and unload device of air.It has that the construction investment of CNG substation is few, working ability is high, gas efficiency is high, over-the-road expense is low, automatic guidance, very little maintenance, stable characteristics.
Description
Technical field
The present invention relates to a kind of hydraulic natural gas automobile secondary gas filling station.
Background technology
Two classes are divided at the natural gas vehicle refueling station of widespread usage both at home and abroad at present: 1) take natural fuels by pipe-line transportation system (pipe network), the gas station of market goods locally after compression is called the standard station; 2) take natural fuels by pipeline, concentrate compression with many main equipments, the group of gas station who is transported to the strange land scattered distribution with high pressure vessel is called the mothers and sons system of standing.Concentrated compressor station is called female station, is that the gas station of source of the gas is that the substation is the CNG substation with vehicle-mounted pressure container.On the used long tube formula transport trolley of CNG substation 8 steel cylinders are housed, 8 whole parallel connections of steel cylinder are one group, shared import and export, and when the external air feed of transport trolley, the air pressure of every steel cylinder descends synchronously.Because the volume of steel cylinder is immutable, long tube formula transport trolley steel cylinder internal gas pressure behind the vehicle air feed of being bullied descends.The vehicle storage pressure that guarantees to be bullied when constantly descending for transport trolley air pressure reaches 20MPa, general-duty technology is the station gaholder group that is provided with in the substation by compressor tonifying Qi supercharging, its effect be at vehicle-mounted container behind the gas cylinder air feed of the vehicle of being bullied, supply the pressure of automobile gas cylinder to 20MPa to the vehicle air feed of being bullied once more.The station of substation presses gaholder to form with the gaholder group by in the high-pressure gas cylinder group of maximum working pressure 25MPa and the identical pressure-proof, press again high pressure to divide three times in after this first low pressure and be called three-way order aerating method to the method that is subjected to vapour vehicle air feed, though he can improve the gas taking rate of gas cylinder and the work efficiency of compressor, but replenishing the station is the substation compressor with the equipment of gaholder group pressure, its equipment complexity, involves great expense.Since the compressibility and the heat of compression of gas, mechanical characteristics be converted to compression can efficient not high, consumption of power is bigger, this is that the substation investment is maximum, operating cost is according to the reason of height under not.
Summary of the invention:
In order to overcome the shortcoming of prior art, the invention provides a kind of hydraulic natural gas automobile secondary gas filling station, it has, and the construction investment of CNG substation is few, working ability is high, gas efficiency is high, over-the-road expense is low, automatic guidance, very little maintenance, stable characteristics.
The present invention solves the technical scheme that its technical matters takes: it comprises CNG substation trailer, the substation prying body, the PLC control housing, the general mood source device, fuel gas alarm and filling machine, described general mood source device, fuel gas alarm is fixed in the prying body of substation, described PLC control housing is used for automatic guidance, the automatic computing of signal that indication and instrument detect, and power-down data protection is arranged, the data time-delay shows and the repetition Presentation Function, with touch-screen, on-the-spot button, spot sensor is for detecting incoming signal, air-operated solenoid valve, intermediate relay carries out the automatic work of a whole set of CNG substation for the execution signal of output; Described general mood source device comprises baby compressor, molecular sieve, deep dehydration equipment, high precision oil removal filter, and it provides dry, clean pressurized air for control system, uses for pneumatic valve; Described fuel gas alarm carries out continual detection to the concentration of natural gas in the prying body, reports to the police after concentration reaches dangerous values, and starts the interior air exhausting device of prying body automatically, begins ventilation; It is characterized in that: be fixed with 8 independently pressure containers on the trailer of described CNG substation, each pressure container front end is fixed pneumatic air outlet valve respectively, pneumatic inlet valve and pneumatic fuel-return valve that the rear end is fixed and connect respectively, described all pneumatic air outlet valves are by pipeline and be connected to the air outlet valve platform, described all pneumatic inlet valves are by pipeline and be connected to the inlet valve platform, described all pneumatic fuel-return valves are by pipeline and be connected to the fuel-return valve platform, described air outlet valve platform, inlet valve platform and fuel-return valve platform are fixed on CNG substation trailer afterbody, the fast-assembling interface is arranged respectively, described pneumatic air outlet valve, the control gas circuit of pneumatic inlet valve and pneumatic fuel-return valve is communicated with described general mood source device, described air outlet valve platform is communicated with described filling machine by pipeline, CNG substation trailer has elevating ram, the hydraulic tubing of elevating ram leaves the fast-assembling interface at the tailstock, so that be connected with the lifting pipeline of substation prying body; Described substation prying body comprises prying body, wet tank, pressure charging system, media fluid and unloads device of air, described prying body is a framed structure, its internal fixation has wet tank, pressurizer and Unloading Device, the media fluid that is insoluble to natural fuels is arranged in the wet tank, pressurizer comprises fire proof motor, high pressure pump, pressure-gradient control valve, high-pressure pipe member, it is communicated with wet tank with described inlet valve platform, Unloading Device is communicated with wet tank with described fuel-return valve platform.
The present invention has following advantage: 1, over-the-road expense is low.The hydraulic natural gas automobile secondary gas filling station system makes full use of the relative incompressibility of liquid, replaces the natural gas compressor system with hydraulic efficiency pressure system, and no recruitment is significantly reduced, and mechanical efficiency improves greatly.It is distinctive unloads the most overall process of the natural fuels user aerating operation key of energy savings especially that do not reduce pressure of gas from the CNG transport trolley.So each novel C NG substation system installed power is 37KW only, the traditional substation system that contrasts equal working ability lacks the installed power of 1000KW, power savings highly significant at least; 2, maintenance cost is low.Hydraulic natural gas automobile secondary gas filling station system automation degree height, few, the simple to operate system maintenance work amount of number of devices are minimum, and traditional type air entraining substation over-the-road expense greatly reduces relatively; 3, floor area is little.The hydraulic natural gas automobile secondary gas filling station system is a skid-mounted type, compact conformation, and floor area is little, can save gas storage group in ground in natural gas boosting machine and the station, reduces the cost of building a station greatly.Building higher location of pipe network cost and the reorganization and expansion project on the petrol service station basis, its advantage is unrivaled especially.4, operating efficiency height.The hydraulic natural gas air entraining substation can make natural fuels under constant high pressure (20MPa) almost, be close under the state of normal temperature and charge into vehicle-mounted bottle, fast than traditional type air entraining substation aeration speed, degree of filling is high.And can make the through unloading rate of CNG transport trolley reach 95%, improved operating efficiency greatly.5, installation rate is fast.Equipment is simple, and is easy for installation, and the construction period is short, and opportunity cost reduces greatly.For enterprise has increased benefit.6, environment-friendly advantage is remarkable.The vibrations of hydraulic natural gas air entraining substation truck system equipment are very little; noise is lower than 15 decibels; but even not disturbing residents, than the with serious pollution situation of the gases used compressor noise of traditional type air entraining substation, its environmental protection highly significant from the nearer place of resident's residential development also normal operation.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is principle of the invention figure;
Fig. 2 attempts for before the trailer of CNG of the present invention substation.
The specific embodiment
The present invention includes CNG substation trailer 6, substation prying body 8, PLC control housing, general mood source device, fuel gas alarm and filling machine 9, as shown in Figure 1.
Described PLC control housing (not drawing among the figure) is to be the control core system by Siemens S7-200 type PLC; the PLC system is according to the program of numbering; according to site operation personnel's the indication and the automatic computing of signal of instrument detection, data protection when power down is arranged, data time-delay show and the repetition Presentation Function.With touch-screen, on-the-spot button, spot sensor serves as to detect incoming signal, and air-operated solenoid valve, intermediate relay carry out the automatic work of a whole set of CNG substation for the execution signal of output.
Described general mood source device is formed by combining by famous brand high-quality baby compressor, molecular sieve, deep dehydration equipment, high precision oil removal filter, its effect is to provide dry, clean pressurized air for control system, the moving actr of air feed uses, reduce the influence of water in the pressurized air, wet goods impurity to greatest extent, make system's electromagnetic valve, pneumatic actuator can long-term stable operation robot control system(RCS).
Described fuel gas alarm is paid no attention to disconnected detection to the concentration of natural gas in the substation prying body 8, reports to the police after concentration reaches dangerous values, and starts air exhausting device in the substation prying body 8 automatically, begins ventilation.
Be fixed with 8 independently pressure containers 2 on the described CNG substation trailer 6, each pressure container 2 front end is fixed pneumatic air outlet valve 10 respectively, as shown in Figure 2, and pneumatic inlet valve 1 and pneumatic fuel-return valve 3 that the rear end is fixed and connect respectively, as shown in Figure 1.Described all pneumatic air outlet valves 10 are by pipeline and be connected to air outlet valve platform 7, and described all pneumatic inlet valves 1 are by pipeline and be connected to inlet valve platform 4, and described all pneumatic fuel-return valves 3 are by pipeline and be connected to fuel-return valve platform 5.Described air outlet valve platform 7, inlet valve platform 4 and fuel-return valve platform 5 are fixed on the afterbody of CNG substation trailer 6, and the fast-assembling interface is arranged respectively.The control gas circuit of described pneumatic air outlet valve 10, pneumatic inlet valve 1 and pneumatic fuel-return valve 3 is communicated with described general mood source device.Described air outlet valve platform 7 is communicated with described filling machine 9 by pipeline.CNG substation trailer 6 has elevating ram, and the hydraulic tubing of elevating ram leaves the fast-assembling interface at the tailstock, so that be connected with the lifting pipeline of substation prying body 8.
Described substation prying body comprises: 1. prying body: main body frame adopts the square steel that is not less than 100 * 100mm to make, and is coated with anticorrosive paint outward, is provided with ringbolt, convenient lifting is moved, and is provided with 2 of vertical hinged doors, ventilates and uses explosion-proof fan, the explosion-proof wiring case, gas buffer jar, illuminating lamp, gas alarm probe; 2. wet tank: contain liquidometer, low-pressure filter etc., have the indication liquid level, functions such as control liquid level; 3. pressure charging system: contain homemade fire proof motor, import high pressure pump, pressure-gradient control valve, high-pressure pipe member etc.; 4. media fluid: when ambient temperature-40 ℃～50 ℃, guarantee system's normal operation, the medium that natural fuels is insoluble to; 5. unload device of air: by 2 of highly pressurised liquid fast-assembling pipelines (chargine line, oil return line), CNG fast-assembling pipeline 1 (natural fuels outlet pipe), control air pipe, each pipeline ready-packaged joint.
Working process: CNG substation trailer 6 is stopped fixing to assigned address.Open the valve that diffuses at each block place on the trailer, with this part release, so that connect high pressure hose.With two high-pressure liquid line (oil inlet and oil return pipe) on the substation, a high-pressure natural gas pipeline, a high pressure lifting pipeline, three control gas ready-packaged joints etc. are connected in respectively on the corresponding position separately, close the valve that diffuses in trailer and the substation system.Open the fluid injection manually actuated control valve of substation, return liquid manually actuated control valve and CNG and unload the gas manual control valve, open the aerating total valve on the trailer, the total valve of giving vent to anger.System send, wait for that the startup of PLC and touch-screen finishes, the gas reservoir pressure of air machinery reaches behind the setting pressure (0.65～0.8MPa), start main motor, hydraulic efficiency pressure system is started working, after system pressure reaches setting value (22MPa), to rise hydraulic support frame the trailer front portion is suitably raised, the elevation angle is about 10 °.Press the system start-up button, this moment, system was in automatic mode of operation, and the air outlet valve of 1# bottle is opened, and system detects the air pressure of 1# bottle, when air pressure during less than 19MPa, 1# bottle inlet valve is opened, and system begins toward the interior pump oil of 1# bottle, and this moment, air pressure raise, when air pressure during more than or equal to 21MPa, inlet valve cuts out, and system stops so to go down toward the interior pump oil of bottle.On the fuel tank in the prying body liquid level detection device is installed, begin to calculate from oil-feed, when liquid level drops to setting value (this setting value is to calculate according to 90% of each bottle volume), PLC obtains the oil return signal, close the air outlet valve and the inlet valve of 1# bottle, open the fuel-return valve of 1# bottle and the air outlet valve of 2# bottle, the oil-feed of 1# bottle finishes, and by gaseous tension residual in the bottle oil in the bottle is discharged.The 2# bottle began oil-feed after oil return picked up counting 1 minute, and mode of operation is identical with the 1# bottle.The oil return detecting device is installed on the interior oil return line of prying body, and when oil had returned, photoelectric switch detected and obtains signal, passes to PLC, and PLC closes the 1# fuel-return valve, at this moment 1# bottle end-of-job.Begin bottle from the 1# bottle and so forth up to 8#.After the natural fuels of last trailer is unsnatched, (be 3-5 minute transfer time by artificial transposing ready-packaged joint to the second trailer, stop aerating this moment), when manually changing ready-packaged joint, must note: the valve of closing the lifting pipeline of last car, open that valve is diffused in the substation oiling and natural fuels diffuses valve, with filling neck, high-pressure air pipe, the lifting flexible pipe, the transposing of 3 control gas ready-packaged joints stays the fuel-return valve gate control tracheae of oil return flexible pipe and the 8th steel cylinder in the past, after treating that the 8th steel cylinder oil return finishes, the oil return flexible pipe, the fuel-return valve gate control tracheae of the 8th steel cylinder changes to second car, and the aerating process is proceeded immediately.
Claims (1)
1, a kind of hydraulic natural gas automobile secondary gas filling station, it is characterized in that: it comprises CNG substation trailer (6), substation prying body (8), PLC control housing, general mood source device, fuel gas alarm and filling machine (9), described general mood source device, gas alarm are fixed in the substation prying body (8), described PLC control housing is used for automatic guidance, with touch-screen, on-the-spot button, spot sensor serves as to detect incoming signal, air-operated solenoid valve, the execution signal of intermediate relay for exporting carry out the automatic work of a whole set of hydraulic natural gas automobile secondary gas filling station; Described general mood source device comprises baby compressor, molecular sieve, deep dehydration equipment, high precision oil removal filter, and it provides dry, clean pressurized air for control system, uses for pneumatic valve; Described fuel gas alarm carries out continual detection to the concentration of natural gas in the prying body, reports to the police after concentration reaches dangerous values, and starts the interior air exhausting device of prying body automatically, begins ventilation; Be fixed with 8 independently pressure containers (2) on the described CNG substation trailer (6), each pressure container (2) front end is fixed pneumatic air outlet valve (10) respectively, pneumatic inlet valve (1) and pneumatic fuel-return valve (3) that the rear end is fixed and connect respectively, described all pneumatic air outlet valves (10) are by pipeline and be connected to air outlet valve platform (7), described all pneumatic inlet valves (1) are by pipeline and be connected to inlet valve platform (4), described all pneumatic fuel-return valves (3) are by pipeline and be connected to fuel-return valve platform (5), described air outlet valve platform (7), inlet valve platform (4) and fuel-return valve platform (5) are fixed on the afterbody of CNG substation trailer (6), the fast-assembling interface is arranged respectively, described pneumatic air outlet valve (10), the control gas circuit of pneumatic inlet valve (1) and pneumatic fuel-return valve (3) is communicated with described general mood source device, described air outlet valve platform (7) is communicated with described filling machine (9) by pipeline, CNG substation trailer (6) has elevating ram, and the hydraulic tubing of elevating ram leaves the fast-assembling interface at the tailstock; Described substation prying body (8) comprises prying body framed structure, wet tank, pressure charging system, is insoluble to the media fluid of natural fuels and unloads device of air, described prying body framed structure internal fixation wet tank, pressure charging system and Unloading Device, described media fluid is arranged in the described wet tank, pressure charging system comprises fire proof motor, high pressure pump, pressure-gradient control valve, high-pressure pipe member, it is communicated with wet tank with described inlet valve platform (4), Unloading Device is communicated with wet tank with described fuel-return valve platform (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100551992A CN100558586C (en) | 2008-05-30 | 2008-05-30 | Hydraulic natural gas automobile secondary gas filling station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100551992A CN100558586C (en) | 2008-05-30 | 2008-05-30 | Hydraulic natural gas automobile secondary gas filling station |
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| CN101298244A CN101298244A (en) | 2008-11-05 |
| CN100558586C true CN100558586C (en) | 2009-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2008100551992A Expired - Fee Related CN100558586C (en) | 2008-05-30 | 2008-05-30 | Hydraulic natural gas automobile secondary gas filling station |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915358B (en) * | 2010-07-23 | 2012-02-15 | 邯郸新兴重型机械有限公司 | Return oil detection method of hydraulic type natural gas vehicle gas-filling substation |
| CN101915231B (en) * | 2010-07-23 | 2013-03-27 | 新兴能源装备股份有限公司 | Control method of variable-frequency hydraulic oil pump |
| CN102252165A (en) * | 2011-04-11 | 2011-11-23 | 青岛中油通用机械有限公司 | Ground jacking-type large-capacity hydraulic substation |
| CN102242866B (en) * | 2011-07-01 | 2013-07-24 | 新兴能源装备股份有限公司 | Natural gas filling method for hydraulic natural gas filling substation |
| CN105526491B (en) * | 2014-09-29 | 2023-03-31 | 安瑞科(廊坊)能源装备集成有限公司 | Hydraulic natural gas filling for automobile substation oil return system and oil return method |
| CN107304972A (en) * | 2016-04-18 | 2017-10-31 | 安瑞科(廊坊)能源装备集成有限公司 | Natural gas hydraulic substation and its unload gas system |
| CN107620866B (en) * | 2016-07-14 | 2020-07-31 | 石家庄安瑞科气体机械有限公司 | Unpowered natural gas filling station with circulation alternate control system and control method |
| CN107907341A (en) * | 2017-11-23 | 2018-04-13 | 博格华纳汽车零部件（江苏）有限公司 | Moveable turbocharger oil-servicing facilities and fuel supply method |
| CN108332048A (en) * | 2018-04-25 | 2018-07-27 | 天津良华新能源科技有限公司 | A kind of movable type CNG air entraining substation systems |
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