CN207361781U - Refueling nozzle/fuel tank interface oil and gas leakage detection device - Google Patents
Refueling nozzle/fuel tank interface oil and gas leakage detection device Download PDFInfo
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- CN207361781U CN207361781U CN201720988735.9U CN201720988735U CN207361781U CN 207361781 U CN207361781 U CN 207361781U CN 201720988735 U CN201720988735 U CN 201720988735U CN 207361781 U CN207361781 U CN 207361781U
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- refueling nozzle
- oil
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- gas leakage
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Abstract
A kind of refueling nozzle/fuel tank interface oil and gas leakage detection device is the utility model is related to, mainly solves the problems, such as that test operation is complicated, inconvenient in the prior art.The utility model is by using a kind of refueling nozzle/fuel tank interface oil and gas leakage detection device, technical solution including refueling nozzle sleeve, sleeve sampling pipe, sleeve sampling pump, flowmeter, Portable combustible gas detector preferably solves the above problem, available in refueling nozzle or the detection of fuel tank interface oil and gas leakage.
Description
Technical field
It the utility model is related to a kind of refueling nozzle/fuel tank interface oil and gas leakage detection device.
Background technology
At present, State Environmental Protection Administration's statistics is shown, in recent years in gas station the exhaust of oil of motor vehicle cause compared with
Big energy waste, security risk and air ambient pollution.And in the exhaust of oil of vehicle refueling process, refueling nozzle/automobile oil
The oil gas of case interface discharge account for larger specific gravity again, and the health of oiling person is caused necessarily to threaten in regular gasoline station, from
Help to refuel to customer safely during oiling and cause a hidden trouble, analyzed through accident investigation for many years, the security incident master of gas station more than 70%
To be caused due to oil gas volatilization.Therefore the oil and gas leakage amount and leak rate for vehicle refueling process, which are detected, seems particularly
It is important.
CN 105217559A disclose a kind of gas station's secondary oil gas organic efficiency test device and test method, summary
Oil gas collection device is installed in the inlet of automotive oil tank and absorbs loss oil gas, vacuum pump, gas are installed on oil gas collection device
Flowmeter and regulating valve, but the concrete structure and material of the non-detailed design oil gas collecting device.
Such method is not retrieved in existing standard regulation and detection technique, and to solve above-mentioned needs, this practicality is new
Type devises a kind of refueling nozzle/fuel tank interface oil and gas leakage detection device, specifically devises a kind of test refueling nozzle/automotive oil tank
The device of interface oil and gas leakage amount, is accurately tested for refueling nozzle/fuel tank interface vaporizing oil-gas speed and volatile quantity, and
The apparatus structure is simply light, and cost is low, small, and this method can effectively monitor gas station's secondary oil gas reclaiming system and implement effect
Fruit, reduces oil gas volatilization amount, so as to improve petroleum vapor recovery efficiency, reduces security risk, effective environmental protection, increases economic efficiency
And environmental benefit.
Utility model content
Technical problem to be solved in the utility model is the problem of test operation is complicated, inconvenient in the prior art, is carried
For a kind of new refueling nozzle/fuel tank interface oil and gas leakage detection device.The device have test operation it is simple, conveniently, cost it is low
The advantages of.
To solve the above problems, the technical solution adopted in the utility model is as follows：A kind of refueling nozzle/fuel tank interface oil gas is let out
Device for detecting leakage, including refueling nozzle sleeve, sleeve sampling pipe, sleeve sampling pump, flowmeter, Portable combustible gas detector.
In above-mentioned technical proposal, it is preferable that a matched refueling nozzle sleeve is installed at refueling nozzle nozzle.
In above-mentioned technical proposal, it is preferable that one end branch sleeve sampling pipe of refueling nozzle sleeve.
In above-mentioned technical proposal, it is preferable that sleeve sampling pipe exit is sequentially connected sleeve sampling pump, flowmeter.
The utility model can be examined while collecting and detecting gas station's refueling nozzle/automotive oil tank interface oil and gas leakage amount
Oil and gas leakage amount is surveyed, and compact, intuitive display simple in structure, the pressure loss are small, cheap, work particularly suitable for gas station
Personnel's preservation ＆ testing daily to gas recovery system for oil uses, and can be provided for gas station's secondary oil gas reclaiming system efficiency calculation
Valid data, achieve preferable technique effect.
Brief description of the drawings
Fig. 1 is refueling nozzle tube-in-tube structure schematic diagram.
In Fig. 1：A is exterior, b is internal.
Fig. 2 is refueling nozzle/automotive oil tank interface leak detection device schematic diagram.
In Fig. 2：1 is refueling nozzle to be tested, 2 be refueling nozzle sleeve, 3 be oiling gun barrel, 4 be sleeve sampling pipe, 5 be oiling
Sebific duct, 6 are Portable combustible gas detector.
The utility model is further elaborated below by embodiment, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
It is as shown in Figure 1 refueling nozzle tube-in-tube structure schematic diagram, the exterior a of wherein refueling nozzle sleeve is flexible material (for fluorine
Rubber), inside b be rigid material (for polytetrafluoroethylene (PTFE)), material needs anti-gasoline and the corrosion of resistance to additive.
As shown in Fig. 2, test refueling nozzle/automotive oil tank interface oil and gas leakage amount device bag designed by the utility model
Include：The refueling nozzle sleeve 2 being sleeved on 1 gun barrel 3 of refueling nozzle to be tested, the sleeve sampling pipe 4 being connected on refueling nozzle sleeve 2 (are adopted
Flowmeter, sleeve sampling pump are sequentially connected on sample pipe), and Portable combustible gas detector 6.Sleeve sampling pipe is polytetrafluoro
Ethene material.
The flowmeter selects the volume flowmeter of measurable gas instantaneous delivery, to measure the oil of this measuring device collection
Tolerance.
The sleeve sampling pump is dry type vane pump, exhaust capacity >=140L/min.
The detecting step of the refueling nozzle/automotive oil tank interface oil and gas leakage detection method is：
A. the sampling pump of refueling nozzle sleeve is opened, records initial volume meter readings；
B. start to gather gas concentration data when refueling nozzle is put into automobile；
C. in refueling process, check that can refueling nozzle sleeve be effectively collected using portable hydrocarbon measuring instrument
The oil gas of discharge；
D. start timing with stopwatch when oiling machine flow meter reading changes, refueling nozzle is closed after at least oiling 20L, when adding
When oil machine volume flowmeter pointer stops mobile, stop timing, record volume read-out and refueling time；
E. fuel charger is closed after the completion of refueling, refueling nozzle is removed from automobile refuelling pipe, is added to avoid liquid gasoline pollution
Oil gun casing.Whether liquid gasoline is left in record sleeve, if leaving liquid, the data invalid that gathers；
F. it should continue to collect data after refueling until the hydrocarbon concentration of analyzer response in refueling nozzle sleeve
Less than 100ppm (propane).Refueling nozzle sleeve sampling pump is then shut off, records final volume meter readings.
If volume read-out less than 20L or oiling flow outside the scope of 140~280L/min, the data that gather without
Effect；If before minimum volume read-out 20L is reached, there is a situation where more than 1 time too early jump rifle, then the data invalid gathered；
Gas concentration is higher than lower explosion limit (propane 2100ppm, i.e. 10%LEL), the data invalid of collection at the top of sleeve；Verify automobile
Whether the leakage standard of automobile refuelling pipe specification is met, if oil filling pipe off-gauge closes regulation, the data invalid of collection.
Calculation formula is：
Refueling nozzle/automotive oil tank interface oil and gas leakage amount=final volume meter readings-initial volume meter readings；
During refueling nozzle/automotive oil tank interface oil and gas leakage speed=refueling nozzle/automotive oil tank interface oil and gas leakage amount/oiling
Between；
By above-mentioned calculation formula and test result calculations leakage rate and leak rate.
【Embodiment 2】
According to the condition and step described in embodiment 1, simply flexible material be fluorubber, rigid material be polytetrafluoroethyl-ne
Alkene.
【Embodiment 3】
According to the condition and step described in embodiment 1, simply flexible material be fluorubber, rigid material be polytetrafluoroethyl-ne
Alkene.
The utility model can be examined while collecting and detecting gas station's refueling nozzle/automotive oil tank interface oil and gas leakage amount
Oil and gas leakage amount is surveyed, and compact, intuitive display simple in structure, the pressure loss are small, cheap, work particularly suitable for gas station
Personnel's preservation ＆ testing daily to gas recovery system for oil uses, and can be provided for gas station's secondary oil gas reclaiming system efficiency calculation
Valid data, achieve preferable technique effect.
[comparative example]
At this stage in the exhaust of oil of vehicle refueling process, the oil gas of refueling nozzle/automotive oil tank interface discharge account for
Gas station oil gas volatilization larger specific gravity, health, customer to oiling person, which are refueled safely, to threaten, and in existing standard
Secondary oil gas organic efficiency computational methods are only sketched in regulation and detection technique, vehicle refueling process oil and gas leakage is not described in detail
The detection device and method of amount and leak rate, gas station attendant cannot only ensure with the conventionally test of gas liquid ratio, liquid resistance
Effective assessment to gas recovery system for oil operating status, also results in certain security risk.
Claims (1)
1. a kind of refueling nozzle/fuel tank interface oil and gas leakage detection device, it is characterised in that sampled including refueling nozzle sleeve, sleeve
Pipe, sleeve sampling pump, flowmeter, Portable combustible gas detector；One matched refueling nozzle is installed at refueling nozzle nozzle
Sleeve；One end branch sleeve sampling pipe of refueling nozzle sleeve；Sleeve sampling pipe exit is sequentially connected sleeve sampling pump, flow
Meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988735.9U CN207361781U (en) | 2017-08-09 | 2017-08-09 | Refueling nozzle/fuel tank interface oil and gas leakage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988735.9U CN207361781U (en) | 2017-08-09 | 2017-08-09 | Refueling nozzle/fuel tank interface oil and gas leakage detection device |
Publications (1)
| Publication Number | Publication Date |
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| CN207361781U true CN207361781U (en) | 2018-05-15 |
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| CN201720988735.9U Active CN207361781U (en) | 2017-08-09 | 2017-08-09 | Refueling nozzle/fuel tank interface oil and gas leakage detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384187A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Refueling nozzle/fuel tank interface oil and gas leakage detection device and method |
| CN110510566A (en) * | 2019-09-03 | 2019-11-29 | 河南英高能源科技有限公司 | A kind of oiling volume control device |
| CN110775929A (en) * | 2019-11-08 | 2020-02-11 | 樊俊利 | Oil leakage state monitoring platform and method for oil gun and storage medium |
-
2017
- 2017-08-09 CN CN201720988735.9U patent/CN207361781U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109384187A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Refueling nozzle/fuel tank interface oil and gas leakage detection device and method |
| CN110510566A (en) * | 2019-09-03 | 2019-11-29 | 河南英高能源科技有限公司 | A kind of oiling volume control device |
| CN110510566B (en) * | 2019-09-03 | 2020-11-20 | 河南英高能源科技有限公司 | Refuel flow control device |
| CN110775929A (en) * | 2019-11-08 | 2020-02-11 | 樊俊利 | Oil leakage state monitoring platform and method for oil gun and storage medium |
| CN110775929B (en) * | 2019-11-08 | 2020-11-10 | 丽水新贝蕾科技有限公司 | Oil leakage state monitoring platform and method for oil gun and storage medium |
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