CN202676564U - Oil gas recovery discharge factor testing device - Google Patents
Oil gas recovery discharge factor testing device Download PDFInfo
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- CN202676564U CN202676564U CN 201220315302 CN201220315302U CN202676564U CN 202676564 U CN202676564 U CN 202676564U CN 201220315302 CN201220315302 CN 201220315302 CN 201220315302 U CN201220315302 U CN 201220315302U CN 202676564 U CN202676564 U CN 202676564U
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Abstract
The utility model discloses an oil gas recovery discharge factor testing device. The testing device comprises a cover body, an active carbon component and a vacuum pump, wherein the cover body is communicated with the active carbon component and the vacuum pump through gas tubes in sequence. The testing device also comprises a gas flow component. The testing device is used for quantitative test of oil gas discharged by automobile refueling, so that pollution is reduced, and the testing device contributes to environment protection.
Description
Technical field
The utility model is mainly used in field of environment protection, is specifically related to a kind of oil gas and reclaims the emission factor determinator.
Background technology
Refuelling station (Fuel filling Station) is the place that other conveniences services also can be provided for automobile-used fuel oils such as motor vehicle filling gasoline, diesel oil.China's refuelling station's One's name is legion, according to statistics, by in October, 2011, the quantity of China refuelling station is above 9.55 ten thousand.Gasoline is the major product that sell the refuelling station, and its outward appearance is transparency liquid, and China's motor petrol principal ingredient is C4～C12 aliphatic hydrocarbon and cyclic hydrocar-bons, and contains more alkene, aromatic hydrocarbon and a small amount of sulfide.Generally be divided into three trades mark No. 90, No. 93, No. 97 by research octane number (RON).Gasoline has higher octane value and good anti-knock properties, is used for the modernized electric spray type petrol engine of high compression ratio, can improve the power of engine, reduces Fuel Consumption; Have good vapo(u)rability and flammability, can guarantee that engine running is steady, burning is complete, carbon deposit is few; Have preferably stability, it is rotten not to be prone to early oxidation in storing and use procedure, to engine components and oil vessel non-corrosiveness.
Gasoline is the liquid of highly volatile, its in loading and unloading, store gasoline and add the caused pollution problem of oil gas (mainly being the light hydrocarbon component of gasoline) that evaporate in the atmosphere in the process of gasoline and become more and more outstanding.Be discharged into airborne oil gas not only contaminated environment but also waste resource, reduce the oil product of gasoline quality, and can cause photochemical reaction and haze weather, affect atmospheric visibility, the offspring of generation, O
3, the pollutant such as PAN infringement health.The volatilizing loss of gasoline mainly occurs in refinery, oil depot and refuelling station and circulation therebetween, and the refuelling station is owing to relate to also complexity of exhaust of oil process more (RTC unloading, motor vehicle refuel, 4 processes of water clock of gasoline in oil tank little " breathings " and the accumulating pin process) in the more and operation process of number, and the ratio that discharging oil and gas content in refuelling station accounts for whole gasoline circulation process discharging oil gas total amount higher (nearly 70%) is therefore studied very necessary to each link exhaust of oil of refuelling station.
Gasoline station oil gas discharge control is a systematic engineering of business, and this method mainly comprises one-level gas recovery system for oil (Stage in the world
-one-phase); Secondary gas recovery system for oil (Stage
-the two-stage); The terminal oil gas in refuelling station reclaims (claiming again three grades of oil gas to reclaim); Vehicle-mounted gas recovery system for oil (On-Board Refueling Vapor Recovery is called for short ORVR) and reinforced gas recovery system for oil (Enhanced Vapor Recovery is called for short EVR).China carries out one-phase, two-stage and a small amount of terminal oil gas disposal system at present.Stage
The oil gas that gas recovery system for oil produces when refueling mainly for automotive oil tank, its definition: the oil gas that will produce in the time of will adding gasoline to automotive oil tank, collect the system that enters sunken tankers by air-tight manner.Utilize in fact the special construction of the double-skin duct on the oil gun, skin goes rancid, intermediate duct is walked vapour---and be that oil gas reclaims reverse coaxial-type sebific duct, fall apart in airborne oil gas via the secondary oil gas reclaiming system that air entry and the assemblies such as seal closure, oil-gas ratin valve, refueling hose and aspiration pump of nozzle front end form originally being overflow by automobile fuel tank port, by airtight mode petrol gas is recovered in the buried tank.
Emission factor refers to the amount of the pollutant of discharging in unit mass, unit volume, unit length or unit of activity time, represents the long-term average emission level of a class emission source.Can calculate rapidly, comparatively exactly the amount that a regional refuelling station discharges pollutants according to each link exhaust of oil factor of refuelling station, provide basic data for formulating refuelling station's control program, also can understand intuitively by emission factor the effect of the control program of having implemented, thereby constantly improve control program.
The factors such as the population, economy, physical environment of developed country are based in external research, in addition, refuelling station's characteristics of European and American countries also exist different from China, be mainly reflected in the aspects such as refuelling station's layout characteristics, retail oiling mode, single rifle oiling intensity, oil quality, oil product component, device fabrication level, managerial personnel's quality, so the refuelling station's emission factor that obtains does not obviously meet the actual conditions of China, can not be applicable to China fully abroad.
The applicant is not identical with external numerical value by the emission factor that field experiment obtains, the Drainage feature and the external situation that show China refuelling station are distinct, therefore, the utility model reclaims to measure for domestic oil gas and has great practical value, and formulates Correlative plan for China's environmental area science and has positive effect.Relevant emission factor gathers and sees Table 1.
Annotate: unit: g.t
-1(gasoline), the density of gasoline are 750kg/m
3
The utility model content
The utility model has overcome the defects of background technology, propose a kind of oil gas and reclaimed the emission factor determinator, quantitative test is carried out in the volatile organic matter disposal of pollutants that produces when being used for automobile fuel filler, take scientific measurement refuelling station two-stage emission factor as purpose, investigate by domestic and foreign literature, laboratory simulation, the determinator of a cover refuelling station two-stage emission factor has successfully been set up in the work in the stages such as field measurement.
The utility model proposes a kind of oil gas and reclaim the emission factor determinator, comprising: cover body, activated charcoal parts and vacuum pump; Described cover body is communicated with described activated charcoal parts and vacuum pump successively by flue.
Wherein, described cover body surface is provided with some apertures, and the percentage of open area of described cover body is 8-20%.
Wherein, the diameter of described aperture is 4-5mm; The quantity of described aperture is 80-180.
Wherein, the pipe interior diameter of described flue is 250mm, and thickness is 3mm.
Wherein, further comprise the gas flow parts; Described gas flow parts are arranged between described cover body and the activated charcoal parts; Described gas flow parts by described flue respectively with described cover body and activated charcoal members.
Wherein, further comprise checkout equipment; Described checkout equipment is arranged on the described cover body.
Technical characterictic and beneficial effect that the utility model adopts are: the utility model is different from the method that external oil gas is measured, and has finished the measurement of the domestic oil gas factor, for the decision-making work of environmental protection provides scientific basis.Can obtain quantitatively the discharge capacity data of two-stage refuelling station by measurement of the present utility model; in conjunction with the filling station system discharge capacity data that can calculate the area after the emissions data of existing other links and the gasoline consumption figure data; these discharge capacity data are important foundation data of area surroundings discharging inventory, can provide scientific basis for the decision-making work of environmental protection by the formulation of discharging inventory.
Description of drawings
Fig. 1 is the synoptic diagram that the utility model oil gas reclaims the emission factor determinator.
Fig. 2 is the connection diagram that the utility model oil gas reclaims emission factor determinator implementation.
Fig. 3 is along with the different nozzles of the gas liquid ratio curve map different from reservoir port interface gaps discharging oil and gas content.
Embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection domain of the present utility model with this.
Shown in Fig. 1-2, the 1st, cover body, the 2nd, gas flow parts, the 3rd, activated charcoal parts, the 4th, vacuum pump, the 5th, flue, the 6th, fuel tank, the 61st, reservoir port, the 7th, differential manometer, the 8th, checkout equipment.
Shown in Fig. 1-2, oil gas of the present utility model reclaims the emission factor determinator, comprising: cover body 1, activated charcoal parts 3 and vacuum pump 4.Cover body 1 is connected with gas flow parts 2, activated charcoal parts 3 and vacuum pump 4 successively by flue 5.
Activated charcoal parts 3 are the stainless cylinder of steel that an inner filling has activated charcoal.The diameter of this stainless cylinder of steel is 150mm, highly is 290mm; It can also be any other suitable size.The activated charcoal parts 3 interior activated charcoals that load are oil gas reclaiming type activated charcoal, and the particle diameter of activated charcoal is 7 ~ 16 orders; Apparent density is 0.33g/ml-0.38g/ml; Moisture is less than 5%; Ash content is 5% ~ 8%; The normal butane displacement volume; 10g/100ml～15g/100ml; Specific surface area is 1400m
2/ g ~ 2400m
2/ g.
The utility model also further comprises gas flow parts 2.When use has the nozzle of oil gas recovery function, utilize the utility model that is provided with gas flow parts 2 to measure emission factor.Gas flow parts 2 are used for measuring the gas volume of gas coming through flow components 2, and this gas volume and volume read-out are divided by and namely obtain gas liquid ratio under this fueling state.Preferably, gas flow parts 2 are selected YQJY-1 type synthetic detection instrument for oil gas recovery, and its flow range is 10 L/min-150L/min.
The utility model also further comprises checkout equipment 8, and for example, whether portable V OCs detector for detection of the concentration of oil gas in the air, exists the oil gas phenomenon that leaks outside to judge cover body 1.When cover body 1 is in negative pressure state, oil gas fully is sucked into flue 5, and at this moment, checkout equipment 8 shows that the concentration of contained oil gas in cover bodies 1 peripheral air is minimum.When the negative pressure of cover body 1 was enough, then oil gas can outwards flow into from the aperture of cover body 1 air, and at this moment, checkout equipment 8 will measure the oil gas that increases in the air delicately.Checkout equipment 8 is removably mounted on the cover body 1.
Utilize differential manometer 7 to measure the pressure of fuel tank 6 inside, and with this adjusting parameter as cover body 1 interior vacuum magnitude.Differential manometer can be arranged on the casing of fuel tank 6, can also be arranged on the reservoir port 61.
Embodiment 1: measure and prepare and data mark attitude
The oil gas when refueling reclaims and measures in refuelling station, a place to utilize the utility model.What this refuelling station adopted is to have the nozzle that oil gas reclaims function, and the brand of nozzle is ZVA, and the brand of fuel charger is agree Hengshan Mountain for holder.
Before implementing measurement, adjustment and the concrete steps of preparing are as follows:
Steps A 1: before the measurement, test at that time airborne moisture and temperature under the meteorological condition by the outdoor air thermohygrometer.Airborne moisture can cause certain influence to the weightening finish of activated charcoal parts 3, therefore, when air humidity is excessive, then can not measure.
Steps A 2: install and regulate the utility model determinator, make each building block airtight, and make flue 5 interior air-flows unimpeded;
Steps A 3: use checkout equipment 8, the air inlet of aperture/gas leakage state on the qualitative judgement cover body 1.When the reading of checkout equipment 8 is then supposed not gas leakage of cover body 1 within 100ppm.
Steps A 4: record airborne pneumatic parameter by the outdoor air pressure gauge, will work as data under the precondition by formula (I) and be converted to data under the normal conditions.(I) is as follows for formula:
Wherein, C
MarkConcentration under the standard state; m
MarkIt is quality under the standard state; V
MarkIt is the standard state lower volume; M is quality; Vt is the test mode lower volume; Pressure when P is test; Ct is concentration under the test mode, temperature when t is test.
Steps A 5: the inspection activated charcoal parts 3 interior activated charcoals that load do not produce channel and are penetrated.
Embodiment 2: measure oil gas and reclaim emission factor when use does not have the nozzle of oil gas recovery function
As shown in Figure 2, utilize the utility model to measure the emission factor that two-stage oil gas reclaims, measuring object is the reservoir port 61 that fuel tank 6 links to each other with nozzle.Reservoir port 61 is the oil-in of fuel tank 6, and nozzle refuels by 61 pairs of fuel tanks 6 of reservoir port.Cover body 1 is connected with reservoir port 61.The differential manometer that arranges on the fuel tank 6 is the pressure for detection of fuel tank internal.
Measuring process is as follows:
Step B1: remove the fuel tank 6 interior used gasoline that may exist, the max cap. that allows residual gasoline is 10% of tankage.
Step B2: use nozzle oil dropping apparatus 6 to refuel, until gasoline capacity surpass tankage 90% the time close nozzle.
Step B3: the gasoline in the fuel tank 6 are returned tank, until the capacity of remaining gasoline be approximately tankage 20% the time stop.
Step B4: use nozzle oil dropping apparatus 6 to refuel about 80% to tankage, the pressure change situation of differential manometer 7 on the record filler tank 6.
Step B5: execution in step B3, with reservoir port 61 cap seals and close fuel tank 6, the residence time, about 20 min(ranges of allowable error were 5 min).At this moment, weighing activated charcoal parts 3(comprises activated charcoal and tank body) weight.
Step B6: oil dropping apparatus 6 refuels, until gasoline capacity be about tankage 80% the time close nozzle.For the emission behaviour that obtains oil gas in the normal automobile fuel filler process (the normal automobile fuel filler process overwhelming majority is that the fast shelves with nozzle refuel a car), so the test oil gun all is to hang on fast grade in the experimentation.When opening oil gun, start vacuum pump 4.Regulate the power of vacuum pump 4 according to the pressure of record in step B4 step, the interior pressure change situation of the pressure change situation that guarantees reservoir port 61 places and fuel tank 6 is basically identical, guarantees that simultaneously the aperture on the cover body 1 is in air-suction state; If the VOCs concentration that checkout equipment 8 records around the cover body 1 is higher, then should adjust the aperture of the needle-valve on the flue 5 or tune up vacuum pump 4 power, guarantee the cover body 1 interior negative pressure that substantially is in.
Step B7: refuel when complete, extract nozzle from reservoir port 61, take off cover body 1 from reservoir port 61, after about 2 s, close vacuum pump 4.Vacuum pump 4 time-delay is shut down, and guarantees still to be present in that the oil gas in the flue also can be reclaimed by activated charcoal between cover body 1 and the activated charcoal parts 3.
Step B8: adopt electronic balance immediately weighing activated charcoal parts 3(comprise activated charcoal and tank body) weight.Compare with the original weight of activated charcoal parts 3 among the step B5, obtain the weightening finish of activated charcoal parts 3.Repeated execution of steps B1-B8 records 5 groups of data.
Step B9: 5 batch totals are calculated the result carry out Rod Dixon (Dixon) check.(Rod Dixon check: when data are processed, must reject Outlier Data so that measurement result more meets objective reality.Correct data always has certain dispersiveness, if it is large but be not the measurement data that peels off to leave out artificially some errors, obtains thus the very high measurement result of precision and at variance with objective reality.Therefore must follow certain principle to the choice of suspicious data, so selected Dixion test to come suspicious data is accepted or rejected.）
Step B10: through Rod Dixon check, 5 groups of measurement data all within zone of reasonableness, therefore calculate emission factor according to formula (II), and obtaining emission factor after the averaged is 985 g/t:
Wherein: E is emission factor, and Δ G is the weightening finish of activated charcoal parts, and ρ is gasoline density, and V is the volume read-out volume, the 1000th, and the unit conversion coefficient.
Measurement data and result of calculation are as shown in table 2:
Embodiment 3: when use had the nozzle of oil gas recovery function, the measuring process of oil gas recovery emission factor was as follows:
Step C1: remove the fuel tank 6 interior used gasoline that may exist, the max cap. that allows residual gasoline is 10% of tankage.
Step C2: use nozzle oil dropping apparatus 6 to refuel, until gasoline capacity surpass tankage 90% the time close nozzle.
Step C3: the gasoline in the fuel tank 6 are returned tank, until the capacity of remaining gasoline be approximately tankage 20% the time stop.
Step C4: use nozzle oil dropping apparatus 6 to refuel about 80% to tankage, the pressure change situation of differential manometer 7 on the record filler tank 6.
Step C5: execution in step C3, with reservoir port 61 cap seals and close fuel tank 6, the residence time, about 20 min(ranges of allowable error were 5 min).At this moment, weighing activated charcoal parts 3(comprises activated charcoal and tank body) weight.
Step C6: oil dropping apparatus 6 refuels, until gasoline capacity be about tankage 80% the time close nozzle.For the emission behaviour that obtains oil gas in the normal automobile fuel filler process (the normal automobile fuel filler process overwhelming majority is that the fast shelves with nozzle refuel a car), so the test oil gun all is to hang on fast grade in the experimentation.When opening oil gun, start vacuum pump 4.Regulate the power of vacuum pump 4 according to the pressure of record in step C4 step, the interior pressure change situation of the pressure change situation that guarantees reservoir port 61 places and fuel tank 6 is basically identical, guarantees that simultaneously the aperture on the cover body 1 is in air-suction state.
Step C7: refuel when complete, extract nozzle from reservoir port 61, take off cover body 1 from reservoir port 61, after about 2 s, close vacuum pump 4.Vacuum pump 4 time-delay is shut down, and guarantees still to be present in that the oil gas in the flue also can be reclaimed by activated charcoal between cover body 1 and the activated charcoal parts 3.
Step C8: read the gas flow value of gas flow parts 2 and the volume read-out of nozzle, calculate gas liquid ratio by gas flow value and oiling value, the numerical value of a front gas liquid ratio can be as the gas liquid ratio of rear twice measurement.
Step C9: adopt electronic balance immediately weighing activated charcoal parts 3(comprise activated charcoal and tank body) weight.Compare with the original weight of activated charcoal parts 3 among the step C6, obtain the weightening finish of activated charcoal parts 3.Repeated execution of steps C2-C9 records 9 groups of data.
Step C10: 9 batch totals are calculated the result carry out the Rod Dixon check.
Step C11: after the Rod Dixon check, calculate and averaged according to formula (II), obtaining emission factor is 85.7 g/t.
As shown in table 3:
As seen from Figure 3, the gas-liquid ratio of nozzle is little, and is just large from the oil and gas content of nozzle and the discharging of reservoir port interface gaps, on the contrary, then discharges just little.
Being preferred embodiment of the present utility model only below, is not to limit practical range of the present utility model.Have in the technical field under any and usually know the knowledgeable, within not breaking away from spirit and scope of the present utility model, when doing various changes and retouching, the utility model protection domain should be as the criterion with the protection domain that claims were defined.
Claims (6)
1. an oil gas reclaims the emission factor determinator, it is characterized in that, comprising: cover body (1), activated charcoal parts (3) and vacuum pump (4); Described cover body (1) is communicated with described activated charcoal parts (3) and vacuum pump (4) successively by flue (5).
2. oil gas reclaims the emission factor determinator as claimed in claim 1, it is characterized in that described cover body (1) surface is provided with some apertures, and the percentage of open area of described cover body (1) is 8-20%.
3. oil gas reclaims the emission factor determinator as claimed in claim 2, it is characterized in that the diameter of described aperture is 4-5mm; The quantity of described aperture is 80-180.
4. oil gas reclaims the emission factor determinator as claimed in claim 1, it is characterized in that the pipe interior diameter of described flue (5) is 250mm, and thickness is 3mm.
5. oil gas reclaims the emission factor determinator as claimed in claim 1, it is characterized in that, further comprises gas flow parts (2); Described gas flow parts (2) are arranged between described cover body (1) and the activated charcoal parts (3); Described gas flow parts (2) are communicated with activated charcoal parts (3) with described cover body (1) respectively by described flue (5).
6. oil gas reclaims the emission factor determinator as claimed in claim 1, it is characterized in that, further comprises checkout equipment (8); Described checkout equipment (8) is arranged on the described cover body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315302 CN202676564U (en) | 2012-07-02 | 2012-07-02 | Oil gas recovery discharge factor testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220315302 CN202676564U (en) | 2012-07-02 | 2012-07-02 | Oil gas recovery discharge factor testing device |
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| CN202676564U true CN202676564U (en) | 2013-01-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115775A (en) * | 2015-08-14 | 2015-12-02 | 合肥恒信汽车发动机部件制造有限公司 | A cover cap/oil-gas separator separation efficiency test single-body testing stand |
| CN105217559A (en) * | 2015-10-21 | 2016-01-06 | 中国石油化工股份有限公司 | Petrol service station secondary oil gas organic efficiency proving installation and test method |
| CN117147795A (en) * | 2023-10-30 | 2023-12-01 | 中国石油天然气股份有限公司 | Oil gas concentration data monitoring device of filling station |
| CN117538202A (en) * | 2024-01-10 | 2024-02-09 | 中汽研汽车检验中心（天津）有限公司 | Method and device for distinguishing contribution amounts of different parts to oiling emission |
-
2012
- 2012-07-02 CN CN 201220315302 patent/CN202676564U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115775A (en) * | 2015-08-14 | 2015-12-02 | 合肥恒信汽车发动机部件制造有限公司 | A cover cap/oil-gas separator separation efficiency test single-body testing stand |
| CN105217559A (en) * | 2015-10-21 | 2016-01-06 | 中国石油化工股份有限公司 | Petrol service station secondary oil gas organic efficiency proving installation and test method |
| CN105217559B (en) * | 2015-10-21 | 2019-07-16 | 中国石油化工股份有限公司 | Gas station's secondary oil gas recovery efficiency test device and test method |
| CN117147795A (en) * | 2023-10-30 | 2023-12-01 | 中国石油天然气股份有限公司 | Oil gas concentration data monitoring device of filling station |
| CN117147795B (en) * | 2023-10-30 | 2024-01-05 | 中国石油天然气股份有限公司 | Oil gas concentration data monitoring device of filling station |
| CN117538202A (en) * | 2024-01-10 | 2024-02-09 | 中汽研汽车检验中心（天津）有限公司 | Method and device for distinguishing contribution amounts of different parts to oiling emission |
| CN117538202B (en) * | 2024-01-10 | 2024-04-09 | 中汽研汽车检验中心（天津）有限公司 | Method and device for distinguishing contribution amounts of different parts to oiling emission |
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|---|---|---|---|
| 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: 20130116 Termination date: 20150702 |
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| EXPY | Termination of patent right or utility model |