CN107720683A - Detect device, method, equipment and the monitoring system of gas liquid ratio in refueling process - Google Patents
Detect device, method, equipment and the monitoring system of gas liquid ratio in refueling process Download PDFInfo
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- CN107720683A CN107720683A CN201710892278.8A CN201710892278A CN107720683A CN 107720683 A CN107720683 A CN 107720683A CN 201710892278 A CN201710892278 A CN 201710892278A CN 107720683 A CN107720683 A CN 107720683A
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- gas liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 73
- 230000008569 process Effects 0.000 title claims abstract description 54
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 91
- 230000004044 response Effects 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 13
- 239000003344 environmental pollutant Substances 0.000 claims description 10
- 239000003502 gasoline Substances 0.000 claims description 10
- 231100000719 pollutant Toxicity 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 14
- 239000003921 oil Substances 0.000 description 109
- 230000006870 function Effects 0.000 description 9
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The present invention relates to the detection of gas liquid ratio in refueling process, is more particularly to used to detect the device of gas liquid ratio, method, equipment and online monitoring system in refueling process.For detecting the device of gas liquid ratio in refueling process, the device includes：Processor, and memory, for storing at least one computer code, the computer code causes the processor when being configured as performing on the processor：Fuel charger is obtained according to setpoint frequency and is in the oil gas volume collected during fueling operation and oiling volume during fuel charger oiling；Calculate the gas liquid ratio of the oil gas volume and oiling volume；Judge whether the gas liquid ratio exceedes predetermined threshold, and record the number that the gas liquid ratio exceedes the predetermined threshold in the predetermined early warning period；Exceed threshold value of warning in response to number of the gas liquid ratio more than the predetermined threshold in the predetermined early warning period of record, generate the signal for causing to send early warning.
Description
Technical field
The present invention relates to the detection of gas liquid ratio in refueling process, is more particularly to used for the dress for detecting gas liquid ratio in refueling process
Put, the method for detecting gas liquid ratio in refueling process, for detecting the equipment of gas liquid ratio and gas station's oil in refueling process
Gas reclaims online monitoring system.
Background technology
" gas liquid ratio " is commonly referred to as the ratio of the oil gas volume and synchronous oiling volume reclaimed when gas station refuels.
In gas liquid ratio detection during existing gas station's oiling, it is often necessary to surveyed using the fluid flowmeter on fuel charger to read
The volume of added gasoline during amount detection.Then gas liquid ratio is calculated, thus it is apparent that the recovering effect of gas recovery system for oil.Example
The gas flowmeter requirement minimum range that gas liquid ratio such as prior art uses in detecting is not more than 10L/min, maximum range model
120~1400L/min is enclosed, and at least 80 liters etc. of oil drum volume is used in detection.But such gas liquid ratio detection can not enter
Row is monitored on-line in real time.That is, certain detection defect and hidden danger be present in existing gas liquid ratio detection technique.
Therefore, the requirement for gas liquid ratio detection improvement in refueling process in the prior art urgently be present.
The content of the invention
According to the first aspect of the invention, there is provided a kind of device for being used to detect gas liquid ratio in refueling process, wherein should
Device includes：Processor, and memory, for storing at least one computer code, the computer code is configured as at this
Cause the processor when being performed on processor：The oil gas body collected during fueling operation is according to setpoint frequency acquisition fuel charger
Oiling volume when product is refueled with fuel charger；Calculate the gas liquid ratio of the oil gas volume and oiling volume；Whether judge the gas liquid ratio
More than predetermined threshold, and record the number that the gas liquid ratio exceedes the predetermined threshold in the predetermined early warning period；In response to record
The gas liquid ratio exceedes threshold value of warning in the predetermined early warning period more than the number of the predetermined threshold, and generation causes the letter for sending early warning
Number.
In one embodiment of the invention, wherein calculating the gas liquid ratio of the oil gas volume and oiling volume includes：Count
The number of pulse equivalency corresponding with unit volume read-out set in advance when fuel charger refuels, by the number of the pulse equivalency with being somebody's turn to do
Unit volume read-out is multiplied, so as to obtain the oiling volume；Then the oil gas volume and the oiling volume are divided by so as to obtain gas
Liquor ratio.
In another embodiment of the present invention, wherein the processor is further configured to record the continuous occurrence number of early warning,
And exceeding alarm threshold value in response to the continuous occurrence number of the early warning, generation causes the signal for sending alarm.
In yet another embodiment of the present invention, wherein the setpoint frequency includes obtaining respectively once per 10-60000 milliseconds
Oil gas volume and oiling volume, segment limit was included within 12-120 hours during the predetermined early warning, and the threshold value of warning scope is included in
Number in the predetermined early warning period more than the predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number, should
Alarm threshold value scope includes early warning occur in 24-720 hours.
In yet another embodiment of the present invention, wherein the setpoint frequency includes an every 20 milliseconds oil gas bodies of acquisition respectively
Product and oiling volume, within segment limit includes 24 hours during the predetermined early warning, when the threshold value of warning scope is included in predetermined early warning
The number for exceeding the predetermined threshold in section is accounted for always more than the 25% of number in the predetermined early warning period, and the alarm threshold value scope includes
There is early warning in 120 hours.
In one embodiment of the invention, wherein the predetermined threshold is according to National Standard of the People's Republic of China
GB20952-2007 is on the regulation of gas liquid ratio in gas station's atmosphere pollutants emission standardses or according to Beijing's provincial standard
DB11/208-2010 is set on the regulation of gas liquid ratio in gasoline station oil gas discharge control and limitation standard.
According to the second aspect of the invention, there is provided a kind of method for detecting gas liquid ratio in refueling process, can wrap
Include step：Fuel charger is obtained according to setpoint frequency and is in the oil gas volume collected during fueling operation and adding during fuel charger oiling
Oil volume；Calculate the gas liquid ratio of the oil gas volume and oiling volume；Judge whether the gas liquid ratio exceedes predetermined threshold, and record and be somebody's turn to do
Gas liquid ratio exceedes the number of the predetermined threshold in the predetermined early warning period；In response to record the gas liquid ratio in the predetermined early warning period
In exceed the number of the predetermined threshold and exceed threshold value of warning, generate the signal for causing to send early warning.
In one embodiment of the invention, wherein calculating the gas liquid ratio of the oil gas volume and oiling volume includes：Count
The number of pulse equivalency corresponding with unit volume read-out set in advance when fuel charger refuels, by the number of the pulse equivalency with being somebody's turn to do
Unit volume read-out is multiplied, so as to obtain the oiling volume；Then the oil gas volume and the oiling volume are divided by so as to obtain gas
Liquor ratio.
In another embodiment of the present invention, step can also be included for detecting the method for gas liquid ratio in refueling process
Suddenly：The continuous occurrence number of early warning is recorded, and exceedes alarm threshold value in response to the continuous occurrence number of the early warning, generation causes to send police
The signal of report.
In yet another embodiment of the present invention, wherein the setpoint frequency includes obtaining respectively once per 10-60000 milliseconds
Oil gas volume and oiling volume, segment limit was included within 12-120 hours during the predetermined early warning, and the threshold value of warning scope is included in
Number in the predetermined early warning period more than the predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number, should
Alarm threshold value scope includes early warning occur in 24-720 hours.
In yet another embodiment of the present invention, wherein the setpoint frequency includes an every 20 milliseconds oil gas bodies of acquisition respectively
Product and oiling volume, within segment limit includes 24 hours during the predetermined early warning, when the threshold value of warning scope is included in predetermined early warning
The number for exceeding the predetermined threshold in section is accounted for always more than the 25% of number in the predetermined early warning period, and the alarm threshold value scope includes
There is early warning in 120 hours.
In one embodiment of the invention, wherein the predetermined threshold is according to National Standard of the People's Republic of China
GB20952-2007 is on the gas liquid ratio regulation in gas station's atmosphere pollutants emission standardses or according to Beijing's provincial standard
What DB11/208-2010 was set on the gas liquid ratio regulation in gasoline station oil gas discharge control and limitation standard.
According to the third aspect of the present invention, there is provided a kind of equipment for detecting gas liquid ratio in refueling process, can wrap
Include：Acquiring unit, the oil gas volume collected during fueling operation and fuel charger are in for obtaining fuel charger according to setpoint frequency
Oiling volume during oiling；Computing unit, for calculating the gas liquid ratio of the oil gas volume and oiling volume；Identifying unit, it is used for
Judge whether the gas liquid ratio exceedes predetermined threshold, and record the gas liquid ratio in the predetermined early warning period more than time of the predetermined threshold
Number；Alarm unit, exceed for number of the gas liquid ratio in response to record more than the predetermined threshold in the predetermined early warning period
Threshold value of warning, generation cause the signal for sending early warning.
In one embodiment of the invention, wherein computing unit also count fuel charger refuel when with unit set in advance
The number of pulse equivalency corresponding to volume read-out, the number of the pulse equivalency is multiplied with the unit volume read-out, added so as to obtain this
Oil volume；Then the oil gas volume and the oiling volume are divided by so as to obtain gas liquid ratio.
In another embodiment of the present invention, wherein the identifying unit also records the continuous occurrence number of early warning, and responds
Exceed alarm threshold value in the continuous occurrence number of the early warning, generation causes the signal for sending alarm.
In yet another embodiment of the present invention, wherein the setpoint frequency includes obtaining respectively once per 10-60000 milliseconds
Oil gas volume and oiling volume, segment limit was included within 12-120 hours during the predetermined early warning, and the threshold value of warning scope is included in
Number in the predetermined early warning period more than the predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number, should
Alarm threshold value scope includes early warning occur in 24-720 hours.
In yet another embodiment of the present invention, wherein the setpoint frequency includes an every 20 milliseconds oil gas bodies of acquisition respectively
Product and oiling volume, within segment limit includes 24 hours during the predetermined early warning, when the threshold value of warning scope is included in predetermined early warning
The number for exceeding the predetermined threshold in section is accounted for always more than the 25% of number in the predetermined early warning period, and the alarm threshold value scope includes
There is early warning in 120 hours.
In one embodiment of the invention, wherein the predetermined threshold is according to National Standard of the People's Republic of China
GB20952-2007 is on the gas liquid ratio regulation in gas station's atmosphere pollutants emission standardses or according to Beijing's provincial standard
What DB11/208-2010 was set on the gas liquid ratio regulation in gasoline station oil gas discharge control and limitation standard.
According to the fourth aspect of the present invention, there is provided a kind of on-line monitoring system for oil gas recovery of gas station, including it is above-mentioned
For detect the device of gas liquid ratio in refueling process or it is above-mentioned be used to detect in refueling process the method for gas liquid ratio or
The above-mentioned equipment for detecting gas liquid ratio in refueling process.
By means of the present invention for detecting the device of gas liquid ratio in refueling process, for detecting gas liquid ratio in refueling process
Method, equipment and on-line monitoring system for oil gas recovery of gas station for detecting gas liquid ratio in refueling process, can be for
Gas liquid ratio in gas station's refueling process carries out real time and on line monitoring so that the effect of petroleum vapor recovery efficiency meet the requirement of environmental protection,
For safeguarding that Environmental security, personal security and property safety provide relatively reliable guarantee.
Brief description of the drawings
Fig. 1 diagrammatically illustrates the device for being used to detect gas liquid ratio in refueling process according to one side of the invention；
Fig. 2 diagrammatically illustrates the method for detecting gas liquid ratio in refueling process according to second aspect of the present invention；
Fig. 3 diagrammatically illustrates the equipment for detecting gas liquid ratio in refueling process according to third aspect of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, it is described in detail for each embodiment of the present invention.
Fig. 1 diagrammatically illustrates the device for being used to detect gas liquid ratio in refueling process according to one side of the invention
10, it can include：Oil tank 11, the fuel oil 17 such as gasoline, diesel oil can be stored in oil tank 11.Schematically show in Fig. 1
Three fuel chargers, the first fuel charger 1, the second fuel charger 2, the 3rd fuel charger 3.It is directed to the first fuel charger 1 and shows installation
Oil gas flow sensor in the first fuel charger 1 and between nozzle (not shown) and the first petroleum vapor recovery circuit 6
4, oil gas flow sensor 4 detects the oil gas volume reclaimed when the first fuel charger 1 refuels.It also show and be located at the first fuel charger
Gas liquid ratio acquisition controller 5 in 1, it is corresponding with unit volume read-out set in advance when the first fuel charger 1 refuels for counting
Pulse equivalency number, be directed to gas liquid ratio acquisition controller 5, we will also be described in detail later.Here carry
To oil gas flow sensor 4 can also be mounted between nozzle (not shown) and the first fuel charger 1, as long as can be
The oil gas volume detection of recovery is realized when one fuel charger 1 refuels, this point those skilled in the art will be understood by.
As mentioned above, the fuel oil 17 such as gasoline, diesel oil can be stored in oil tank 11.In these fuel oils 17 by
There is volatile additive to strengthen the combustion characteristics of fuel oil or to reach corresponding environmental protection standard in the addition of many, because
This is in oil tank 11, the first fuel charger 1, the second fuel charger 2, the 3rd fuel charger 3 and the oil of corresponding petroleum vapor recovery pipeline such as first
Certain oil-air pressure is there are in the closed system that gas recovery line 6 is formed.These oil gas 16 include the fuel vapor of volatilization
Body, additive etc., these oil gas 16 constitute saturation system with the fuel oil in oil tank 11.This point those skilled in the art are also
It is understandable.
The first fuel charger 1, the second fuel charger 2, the 3rd fuel charger 3 shown in Fig. 1 are only schematical, are not meant to
Gas station only has three fuel chargers, can actually there is some fuel chargers in gas station, for example, 1,2,3,4,5,6,7,8,
9 ... platform fuel chargers etc., can also be configured with some nozzle on each fuel charger, such as 1,2,3,4 ... refueling
Rifle etc..
In one embodiment of the invention, memory 13 and processor 14 have been used, wherein memory 13 is used to store
At least one computer code, the computer code, which is configured as managing in this place when being performed on device 14, causes the processor 14 can
Perform the certain operations required for the present invention.
In the example shown in Fig. 1, oil gas flow sensor 4 and gas liquid ratio acquisition controller 5 are all and memory 13
Directly or indirectly connect, such as by wired or wirelessly connect, figure 1 illustrates be connected to the first oiling
Connecting line 7 between machine 1 and memory 13, but that passes through such connecting line 7 just for the sake of the succinct needs of accompanying drawing
For example by wired or wirelessly between oil gas flow sensor 4 and gas liquid ratio acquisition controller 5 and memory 13
Connection.Therefore connecting line 7 here is likely to be actual connecting line (in case of a wired connection) or virtual
Connecting line (in the case of a wireless connection).
In one embodiment of the invention, the detection of oil gas flow sensor 4 obtains the first fuel charger 1 and is in fueling state
Shi Huishou oil gas volume, and the oil gas volume data that these are obtained is supplied to the gas liquid ratio in the first fuel charger 1
Acquisition controller 5.Alternative, gas liquid ratio acquisition controller 5 can also gather oil gas flow sensor 4 with setpoint frequency and detect
To the first fuel charger 1 be in fueling state when the oil gas volume that reclaims.The one side of gas liquid ratio acquisition controller 5 can obtain
One fuel charger 1 is in the oil gas volume data reclaimed during fueling state, and on the other hand, gas liquid ratio acquisition controller 5 can also have
There is the function of counter, the number of pulse equivalency during to count oiling, so as to obtain oiling volume.Such as refueled first
Gas liquid ratio acquisition controller 5 will be counted when the first fuel charger 1 refuels and added according to what setpoint frequency obtained when machine 1 is in fueling state
Oil volume.Alternative, gas liquid ratio acquisition controller 5 counts when the first fuel charger 1 refuels and unit volume read-out pair set in advance
The number for the pulse equivalency answered, the number of the pulse equivalency is multiplied with the unit volume read-out, so as to obtain the oiling volume.
It is pointed out that above-mentioned just as shown in Figure 1, gas liquid ratio acquisition controller 5 refuels positioned at first
In machine 1, but it will be understood by those skilled in the art that gas liquid ratio acquisition controller 5 can be located at the first fuel charger 1 in,
Can be that this point is understandable in the first fuel charger of distance 1 slightly more remote computer room or control room.
The term " unit volume read-out set in advance " mentioned herein can represent 1 pulse equivalency corresponding to unit add
Oil mass is 1 milliliter, 5 milliliters, 10 milliliters or 20 milliliters etc., can also equally be set " unit volume read-out set in advance "
To represent unit volume read-out corresponding to 1 pulse equivalency as 1.5 milliliters, 5.5 milliliters, 10.5 milliliters or 20.5 milliliters etc.,
" unit volume read-out set in advance " can specifically be set according to the requirement of designer, that is to say, that be set here
Unit volume read-out corresponding to 1 pulse equivalency is 1 milliliter, 5 milliliters, 10 milliliters either 20 milliliters or 1 pulse equivalency it is corresponding
Unit volume read-out for 1.5 milliliters, 5.5 milliliters, 10.5 milliliters or 20.5 milliliters be not fixed.Gas liquid ratio acquisition control
Device 5 only needs to count the number of pulse equivalency when the first fuel charger 1 refuels, then by the number of the pulse equivalency and 1 arteries and veins
Rush corresponding to equivalent unit volume read-out to be multiplied, terminate to amount to the oiling body added until refueling during so as to be refueled every time
Product.For example, in the case where unit volume read-out set in advance is 1 milliliter, gas liquid ratio acquisition controller 5 counts the first fuel charger
The 1 pulse equivalency number refueled is 10000, then 1 milliliter of result being multiplied of the number 10000 of the pulse equivalency and unit volume read-out
For 10000, so as to know this time to refuel, to terminate to amount to the oiling volume added be 10000 milliliters (10 liters).Similarly, set in advance
In the case that fixed unit volume read-out is 2 milliliters, gas liquid ratio acquisition controller 5 counts the pulse equivalency that the first fuel charger 1 refuels
Number is 10000, then the result that the number of the pulse equivalency is multiplied with unit volume read-out is 20000, so as to know this time to refuel
It is 20000 milliliters (20 liters) to terminate to amount to the oiling volume added.Similarly, it is 3 milliliters in unit volume read-out set in advance
In the case of, it is 10000 that gas liquid ratio acquisition controller 5, which counts the pulse equivalency number that the first fuel charger 1 refuels, then the pulse equivalency
The result that is multiplied with unit volume read-out of number be 30000, so as to know this time to refuel terminate to amount to the oiling volume added be
30000 milliliters (30 liters).In the case where unit volume read-out set in advance is 10 milliliters, gas liquid ratio acquisition controller 5 counts
The pulse equivalency number that first fuel charger 1 refuels is 10000, then the result that the number of the pulse equivalency is multiplied with unit volume read-out
For 100000, so as to know this time to refuel, to terminate to amount to the oiling volume added be 100000 milliliters (100 liters).Presetting
Unit volume read-out be 2.5 milliliters in the case of, gas liquid ratio acquisition controller 5 count the first fuel charger 1 refuel pulse equivalency
Number is 10000, then the result that the number of the pulse equivalency is multiplied with unit volume read-out is 25000, so as to know this time to refuel
It is 25000 milliliters (25 liters), etc. to terminate to amount to the oiling volume added, by that analogy.
That is, in one embodiment of the invention, gas liquid ratio acquisition controller 5 can be used as counter, finally
Count oiling volume.Alternative, gas liquid ratio acquisition controller 5 is also used as calculator, is in for calculating the first fuel charger 1
The ratio (gas liquid ratio) of the oil gas volume oiling volume corresponding with special time period reclaimed during fueling state, i.e. gas liquid ratio gather
The oil gas volume and the oiling volume can be divided by so as to obtain gas liquid ratio by controller 5.In this embodiment, gas liquid ratio is adopted
The gas liquid ratio numerical value that collection controller 5 is calculated will be stored in memory 13, and processor 14 judges whether the gas liquid ratio surpasses
Predetermined threshold is crossed, and records the number that the gas liquid ratio exceedes the predetermined threshold in the predetermined early warning period；In response to being somebody's turn to do for record
Gas liquid ratio exceedes threshold value of warning in the predetermined early warning period more than the number of the predetermined threshold, and generation causes the letter for sending early warning
Number.Alternative, processor 14 judges the exceeded situation of gas liquid ratio, in the case where occurring alarming, such as within 24-720 hours
When there is early warning, processor 14 sends instruction to gas liquid ratio acquisition controller 5 and made so as to be automatically stopped the oiling of the first fuel charger 1
Industry, to safeguard Environmental security, personal security and property safety.
In the variant embodiment of the present invention, the detection of oil gas flow sensor 4 obtains the first fuel charger 1 and is in oiling
The oil gas volume reclaimed during state, and the oil gas volume data active upload that these are obtained is into memory 13.Alternative,
The processor 14 being connected with memory 13 can also use the mode of poll to be detected with setpoint frequency poll oil gas flow sensor 4
The first obtained fuel charger 1 is in the oil gas volume reclaimed during fueling state, and these oil gas volume datas are stored in
In reservoir 13.Alternative, in one embodiment of the invention, the device 10 for detecting gas liquid ratio in refueling process can be with
Including processor 14, above-mentioned computer code can be configured as causing processor 14 being capable of root when performing on processor 14
The oil gas volume of the collection during fuel charger is in fueling operation and corresponding oiling volume are obtained according to setpoint frequency；According to setting
Frequency acquisition fuel charger is in the oiling volume when oil gas volume collected during fueling operation is refueled with fuel charger；Calculate the oil
Air volume and the gas liquid ratio of oiling volume；Judge whether the gas liquid ratio exceedes predetermined threshold, and record the gas liquid ratio predetermined pre-
Exceed the number of the predetermined threshold in the alert period；Exceed the predetermined threshold in the predetermined early warning period in response to the gas liquid ratio of record
The number of value exceedes threshold value of warning, and generation causes the signal for sending early warning.For example, can be by processor 14 according on memory 13
The number of pulse equivalency corresponding with unit volume read-out set in advance when the instruction count fuel charger of storage refuels, by the arteries and veins
The number for rushing equivalent is multiplied with the unit volume read-out, so as to obtain the oiling volume；Then by the oil gas volume and institute
Oiling volume is stated to be divided by so as to obtain gas liquid ratio.Such as processor 14 indicates that gas liquid ratio acquisition controller 5 counts the first fuel charger 1
The number of pulse equivalency during oiling, then by the number of pulse equivalency unit volume read-out phase corresponding with 1 pulse equivalency
Multiply, terminate to amount to the oiling volume added until refueling during so as to be refueled every time.For example, in unit set in advance
In the case that volume read-out is 1 milliliter, gas liquid ratio acquisition controller 5 counts the pulse equivalency number that the first fuel charger 1 refuels and is
10000, then 1 milliliter of result being multiplied of the number 10000 of the pulse equivalency and unit volume read-out is 10000, so as to know this
The oiling volume for terminating to amount to addition of refueling is 10000 milliliters (10 liters).Similarly, it is 2 millis in unit volume read-out set in advance
In the case of rising, it is 10000 that gas liquid ratio acquisition controller 5, which counts the pulse equivalency number that the first fuel charger 1 refuels, then the pulse
The result that the number of equivalent is multiplied with unit volume read-out is 20000, terminates to amount to the oiling body added so as to know this time to refuel
Product is 20000 milliliters (20 liters).Similarly, in the case where unit volume read-out set in advance is 3 milliliters, gas liquid ratio acquisition control
It is 10000 that device 5, which counts the pulse equivalency number that the first fuel charger 1 refuels, then the number of the pulse equivalency and unit volume read-out phase
The result multiplied is 30000, is 30000 milliliters (30 liters) so as to which the end that knows this time to refuel amounts to the oiling volume added.Pre-
In the case that the unit volume read-out first set is 10 milliliter, gas liquid ratio acquisition controller 5 counts the pulse that the first fuel charger 1 refuels
Equivalent number is 10000, then the result that the number of the pulse equivalency is multiplied with unit volume read-out is 100000, so as to know this
The oiling volume for terminating to amount to addition of refueling is 100000 milliliters (100 liters).It it is 2.5 milliliters in unit volume read-out set in advance
In the case of, it is 10000 that gas liquid ratio acquisition controller 5, which counts the pulse equivalency number that the first fuel charger 1 refuels, then the pulse is worked as
The result that the number of amount is multiplied with unit volume read-out is 25000, terminates to amount to the oiling volume added so as to know this time to refuel
For 25000 milliliters (25 liters), etc., by that analogy.
In one embodiment of the invention, oil gas flow sensor 4 detects the first obtained fuel charger 1 and is in oiling shape
The oiling volume that the oil gas volume and gas liquid ratio acquisition controller 5 reclaimed during state obtains will be all stored in memory 13.Processing
The oil gas volume and the oiling volume can be divided by so as to obtain gas liquid ratio by device 14 according to the instruction stored in memory 13.Example
Such as the judgement of processor 14, whether the gas liquid ratio exceedes predetermined threshold, and it is pre- more than this in the predetermined early warning period to record the gas liquid ratio
Determine the number of threshold value；Exceed early warning more than the number of the predetermined threshold in the predetermined early warning period in response to the gas liquid ratio of record
Threshold value, generation cause the signal for sending early warning.
It is pointed out that these oil gas flows for being detected by oil gas flow sensor 4 and corresponding time, and by gas
The oiling volume and corresponding time that liquor ratio acquisition controller 5 calculates can be that storage is stored in the form of computer code
On device 13.Skilled person would appreciate that existing many oil gas flow sensors equally have the work(of data storage
Can, in the case where mass data needs to store, these data, which will be transferred, to be stored in memory 13.
" fuel charger is obtained on processor 14 above-mentioned according to setpoint frequency and is in the oil collected during fueling operation
Oiling volume when air volume refuels with fuel charger " is, it is necessary to illustrate, such as within the period of 1 day or 24 hours, deposit
In the working time section for having multiple first fuel chargers 1 to be in fueling operation, in these working time sections, processor 14 can root
Such as the first fuel charger 1, which is obtained, according to setpoint frequency is in the oil gas volume collected during fueling operation, corresponding time and correspondingly
Oiling volume.The way of use is, for example, obtained respectively per 10-60000 milliseconds according to setpoint frequency an oil gas volume with
Oiling volume, such as every 20 milliseconds obtain oil gas volume and oiling volume respectively.Here the oil gas volume of collection is obtained
Mode can be by the way of poll or active upload.For example, processor 6 can with every 10-60000 milliseconds poll once,
The oil gas volumetric quantities detected by oil gas flow sensor 4 of the position of first fuel charger 1 and corresponding time are stored in storage
In device 13.It is alternative, what the oil gas flow sensor 4 of the position of the first fuel charger 1 can also be detected per 10-60000 milliseconds
Oil gas volumetric quantities and corresponding time active upload and it is stored in memory 13.Setpoint frequency is per 10-60000 milliseconds
Obtain an oil gas volume respectively is advantageous in that with oiling volume, so fast setpoint frequency ensure that real-time continuous detection with
The purpose of monitoring.
Processor 14 can be determined that whether the gas liquid ratio exceedes predetermined threshold, and record the gas liquid ratio in the predetermined early warning period
In exceed the predetermined threshold number.The predetermined threshold mentioned in various embodiments of the present invention can be according to the Chinese people
Republic standard GB/T 20952-2007 in gas station's atmosphere pollutants emission standardses gas liquid ratio regulation or according to
Beijing provincial standard DB11/208-2010 is set on the gas liquid ratio regulation in gasoline station oil gas discharge control and limitation standard
Fixed.Can also be set according to other local standards, such as Tianjin, Shanghai etc., this point is for those skilled in the art
For be understandable.If the gas liquid ratio of record exceedes in advance in the predetermined early warning period more than the number of the predetermined threshold
Alert threshold value, then generation cause the signal for sending early warning.Such as threshold value of warning scope is included in the predetermined early warning period more than predetermined
The number of threshold value accounts in the predetermined early warning period 10%-90% for always exceeding number.Processor 14 is configured in response to record
The gas liquid ratio exceedes threshold value of warning in the predetermined early warning period more than the number of the predetermined threshold, and generation causes the letter for sending early warning
Number.
Setpoint frequency above-mentioned can be that every 10-60000 milliseconds obtain the oil gas volume and oiling volume collected, should
Segment limit was included within 12-120 hours during predetermined early warning, and the threshold value of warning scope is included in the predetermined early warning period pre- more than this
The number for determining threshold value accounts in the predetermined early warning period 10%-90% for always exceeding number, and the alarm threshold value scope includes 24-720
There is early warning in hour.
It should be noted that above description is the description for the situation progress that fueling operation is in for the first fuel charger 1,
Those skilled in the art are it is to be understood that in the case where the second fuel charger 2 and the second fuel charger 3 are in fueling operation, together
Sample can realize the function that above-mentioned each embodiment is realized.Add in addition, above description is one be directed in the first fuel charger 1
Oil gun is in the description that the situation of fueling operation is carried out, and those skilled in the art are it is to be understood that in the first fuel charger 1
2, in the case that 3 ... nozzles are in fueling operation, can equally realize the function that above-mentioned each embodiment is realized.Separately
Outside, above description is that nozzle is corresponded to an oil gas flow sensor 4 and a gas by one be directed in the first fuel charger 1
The description that the situation of liquor ratio acquisition controller 5 is carried out, those skilled in the art are it is to be understood that in 2,3 ... oilings
In the case that rifle corresponds to an oil gas flow sensor 4 and a gas liquid ratio acquisition controller 5, it can equally realize above-mentioned each
The function that individual embodiment is realized.
Alternative, wherein the setpoint frequency includes an every 20 milliseconds oil gas volumes of acquisition and oiling volume, and this is predetermined pre-
Within segment limit includes 24 hours when alert, the threshold value of warning scope is included in the predetermined early warning period more than time of the predetermined threshold
Number, which accounts for, always exceedes the 25% of number in the predetermined early warning period, the alarm threshold value scope includes early warning occur in 120 hours.
On predetermined threshold, it is necessary to illustrate, such as closed in National Standard of the People's Republic of China GB20952-2007
Gas liquid ratio in gas station's atmosphere pollutants emission standardses provides to give the threshold that on-line monitoring system monitors for gas liquid ratio
Value：Slightly alerted during beyond 0.9 to 1.3 scope, if continuous 7 days should alarm in slight alarm condition；Beyond 0.6 to 1.5 model
Severe alerts when enclosing, if continuous 24 hours should alarm in severe alarm condition.The present inventor devises a kind of reference
Numerical value specified in above-mentioned standard, is previously set predetermined threshold.For example, in various embodiments of the present invention, by predetermined threshold
It is set as 0.85-1.35, that is to say, that exist in gas-liquid ratio (continuous volume read-out is more than 15 liters every time) scope of every nozzle
All it is normal number range between 0.85-1.35, is less than 0.85 in the numerical value of gas liquid ratio or all thinks to exceed more than 1.35
Regime values scope.The above-mentioned predetermined threshold provided is with reference to National Standard of the People's Republic of China《GB20952-2007》Setting
, for different national standard or regional standard, this predetermined threshold is also different, and this point is for art technology
It is understandable for personnel.
If processor 14 judges that the gas liquid ratio at special time t exceedes predetermined threshold, then processor 14 will also be remembered
Record the gas liquid ratio and exceed the number of the predetermined threshold in the predetermined early warning period, and continue what is recorded untill judging up to now
Whether the gas liquid ratio exceedes threshold value of warning in the predetermined early warning period (such as 24 hours) more than the number of the predetermined threshold.Such as
When exceeding predetermined early warning more than the number of the predetermined threshold, segment limit (such as in 24 hours) always exceedes the threshold value of warning of number
When, processor 14 can indicate that alarm device 17 sends pre-warning signal.This threshold value of warning scope can be 20%-30%.Example
Such as, processor 14 judges 0 from one day:Start to 24 within 00 minute：At the end of 00 last minute, more than time of the predetermined threshold
Number, which accounts for, always judges the 40% of number in one day (24 hours), then processor 14 indicates that alarm device 17 sends pre-warning signal.If
Processor 14 judges 0 from one day:Start to 24 within 00 minute：At the end of 00 last minute, more than the number of the predetermined threshold
Account for and the 15% of number is always judged in one day (24 hours), then do not send pre-warning signal.
Processor 14 is further configured to record the continuous occurrence number of early warning, and exceedes report in response to the continuous occurrence number of early warning
Alert threshold value, generation cause the signal for sending alarm.For example, all having there is early warning when continuous 5 days (such as 120 hours), then recognize
To generate the signal for causing to send alarm more than alarm threshold value, processor 14.
Schematical description is shown above, in each scope given by the present invention, such as setpoint frequency model
Enclose, predetermined early warning when segment limit, threshold value of warning scope, alarm threshold value scope etc., those skilled in the art can be according to these models
Enclose and selected accordingly with reference to specific reality.
It is described in detail above for the device for detecting gas liquid ratio in refueling process.Below will substantially
Illustratively other aspects of the present invention, for simplicity, the part with repeating above, repeat no more.
Alternative, in one embodiment of the invention, the device 10 for detecting gas liquid ratio in refueling process can be with
Including nozzle control module (not shown), described nozzle control module can include oil gas flow sensor 4 and gas-liquid
Than acquisition controller 5, nozzle control module early warning and/or alarm can occurring according to the instruction from processor 14
In the case of, automatically cut off the fueling operation of fuel charger.Alternative, the device 10 for detecting gas liquid ratio in refueling process can be with
Including gas liquid ratio adjustment module (not shown), such as PCM modules, the corresponding control of PCM modules output, refer under specific circumstances
Show that the first petroleum vapor recovery circuit 6 sucks oil gas or sucks oil gas more less so that gas recovery system for oil reaches environmental protection standard.
A kind of method 20 for being used to detect gas liquid ratio in refueling process is shown in Fig. 2, step can be included：Step 21,
Fuel charger is obtained according to setpoint frequency and is in the oil gas volume collected during fueling operation and oiling volume during fuel charger oiling；
Step 22, the gas liquid ratio of the oil gas volume and oiling volume is calculated；Step 23, judge whether the gas liquid ratio exceedes predetermined threshold,
And record the number that the gas liquid ratio exceedes the predetermined threshold in the predetermined early warning period；Step 24, in response to the gas-liquid of record
Number than exceeding the predetermined threshold in the predetermined early warning period exceedes threshold value of warning, and generation causes the signal for sending early warning.
Alternative, for detecting the method 20 of gas liquid ratio in refueling process, in addition to step：Step 25, early warning is recorded to connect
Continuous occurrence number, and exceed alarm threshold value in response to the continuous occurrence number of the early warning, generation causes the signal for sending alarm.
It is alternative, wherein calculating the oil gas volume and the step 22 of the gas liquid ratio of oiling volume may further include：Meter
The number of pulse equivalency corresponding with unit volume read-out set in advance when number fuel chargers refuel, by the number of the pulse equivalency and
The unit volume read-out is multiplied, so as to obtain the oiling volume；Then the oil gas volume and the oiling volume are divided by so as to obtain
Gas liquid ratio.
As has already been mentioned above, wherein the setpoint frequency includes obtaining the oil gas volume collected per 10-60000 milliseconds
Setpoint frequency, and the setpoint frequency also includes obtaining oil gas volume and oiling volume respectively per 10-60000 milliseconds,
Segment limit was included within 12-120 hours during the predetermined early warning, and the threshold value of warning scope, which is included in exceed in the predetermined early warning period, is somebody's turn to do
The number of predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number, and the alarm threshold value scope includes 24-
There is early warning in 720 hours.Alternative wherein setpoint frequency includes every 20 milliseconds and obtains an oil gas volume respectively with adding
Oil volume, within segment limit includes 24 hours during the predetermined early warning, the threshold value of warning scope is included in the predetermined early warning period and surpassed
The number for crossing the predetermined threshold is accounted for always more than the 25% of number in the predetermined early warning period, and it is small that the alarm threshold value scope includes 120
When interior there is early warning.
Alternative, wherein the predetermined threshold is on refueling according to National Standard of the People's Republic of China GB20952-2007
The gas liquid ratio regulation in atmosphere pollutants emission standardses of standing or according to Beijing provincial standard DB11/208-2010 on refueling
Exhaust of oil of standing controls what is provided and set with the gas liquid ratio in limitation standard.
Fig. 3 diagrammatically illustrates a kind of equipment 30 for being used to detect gas liquid ratio in refueling process, can include：Acquiring unit
31, it is in adding when the oil gas volume collected during fueling operation is refueled with fuel charger for obtaining fuel charger according to setpoint frequency
Oil volume；Computing unit 32, for calculating the gas liquid ratio of the oil gas volume and oiling volume；Identifying unit 33, for judging this
Whether gas liquid ratio exceedes predetermined threshold, and records the number that the gas liquid ratio exceedes the predetermined threshold in the predetermined early warning period；It is alert
Show unit 34, exceed early warning for number of the gas liquid ratio in response to record more than the predetermined threshold in the predetermined early warning period
Threshold value, generation cause the signal for sending early warning.
Alternative, computing unit 32 also counts pulse corresponding with unit volume read-out set in advance when fuel charger refuels and worked as
The number of amount, the number of the pulse equivalency is multiplied with the unit volume read-out, so as to obtain the oiling volume；Then by the oil gas
Volume is divided by so as to obtain gas liquid ratio with the oiling volume.
Alternative, identifying unit 33 also records the continuous occurrence number of early warning, and surpasses in response to the continuous occurrence number of the early warning
Alarm threshold value is crossed, generation causes the signal for sending alarm.
Equally, wherein the setpoint frequency includes obtaining an oil gas volume and oiling volume respectively per 10-60000 milliseconds,
Segment limit was included within 12-120 hours during the predetermined early warning, and the threshold value of warning scope, which is included in exceed in the predetermined early warning period, is somebody's turn to do
The number of predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number, and the alarm threshold value scope includes 24-
There is early warning in 720 hours.Alternative, wherein the setpoint frequency obtains an oil gas volume with adding respectively including every 20 milliseconds
Oil volume, within segment limit includes 24 hours during the predetermined early warning, the threshold value of warning scope is included in the predetermined early warning period and surpassed
The number for crossing the predetermined threshold is accounted for always more than the 25% of number in the predetermined early warning period, and it is small that the alarm threshold value scope includes 120
When interior there is early warning.
Alternative, wherein the predetermined threshold is on refueling according to National Standard of the People's Republic of China GB20952-2007
The gas liquid ratio regulation in atmosphere pollutants emission standardses of standing or according to Beijing provincial standard DB11/208-2010 on refueling
Exhaust of oil of standing controls what is provided and set with the gas liquid ratio in limitation standard.
Also a kind of on-line monitoring system for oil gas recovery of gas station of the present invention, including it is above-mentioned for detecting gas in refueling process
The device of liquor ratio or above-mentioned it be used to detect in refueling process the method for gas liquid ratio or above-mentioned refueled for detection
The equipment of gas liquid ratio in journey.
By each embodiment of above-mentioned design, the gas liquid ratio of compact car and minicar etc. can be included for various vehicles
Online real-time monitoring is carried out, it is achieved thereby that for the on-line real-time measuremen of oil gas recovery system of gas station, is realized automatic
The purpose of change, there is very high practical value and commercial value.
It should be noted that the term " comprising " used in each embodiment of the present invention is not construed as only wrapping
Include, its implication is not restricted.
Further need exist for, it is noted that the technical scheme proposed in the present invention can be realized using software form, can be with
Realized, can also be realized using the combination of software and hardware using hardware mode.
In the case where being realized using software form, acquiring unit, computing unit, identifying unit and alarm unit each may be used
To be implemented as the software module of corresponding function, such as instruction or the instruction set of computer code form.
In the case where being realized using hardware mode, acquiring unit, computing unit, identifying unit and alarm unit each may be used
To be realized for realizing the hardware unit of corresponding function, such as electronic circuit, logic unit, application specific integrated circuit, scene
Programmable gate array, microprocessor, digital signal processor etc..In one embodiment according to the present invention, acquiring unit
Such as can be pressure checking device, such as pressure sensor；Computing unit can for example pass through multiplier and the knot of divider
Close to realize, wherein multiplier is used to obtain oiling volume, and divider is used for the oiling body for obtaining oil gas volume and multiplier
Long-pending value is divided by, to obtain both ratio, i.e. gas liquid ratio；Identifying unit can for example pass through a comparator and counter
With reference to realizing, the comparator compares above-mentioned ratio with predetermined threshold, and counter is more than predetermined threshold to above-mentioned ratio
Number is counted；Alarm unit, such as can be realized by signal generator, such as predetermined voltage or electric current can be produced
Voltage/current signals generator, when the count value in counter exceedes predetermined threshold, to signal generator provide one control
Signal, to cause the signal generator produces can indicate to send the signal of early warning.
In the case where being combined using software and hardware, software module shape can be referred to using above-mentioned according to using needs
Formula come realize the part of functions in embodiments of the invention operate, and use hardware unit come realize another part operate, and also
One function can be directed to operate, partly realized using software module form, partly using hardware unit form.
Although describe the present invention by reference to the embodiment being presently contemplated that, it should be appreciated that the invention is not restricted to institute
Disclosed embodiment.On the contrary, it is contemplated that cover in spirit and scope of the appended claims included various modifications and
Equivalent arrangements.The scope of following claims meets most broad interpretation, so as to comprising it is all it is such modification and equivalent structure and
Function.
Claims (19)
1. a kind of device for being used to detect gas liquid ratio in refueling process, it is characterised in that described device includes：
Processor, and
Memory, for storing at least one computer code, the computer code is configured as holding on the processor
Cause the processor during row：
Fuel charger is obtained according to setpoint frequency and is in the oil gas volume collected during fueling operation and oiling during fuel charger oiling
Volume；
Calculate the gas liquid ratio of the oil gas volume and oiling volume；
Judge whether the gas liquid ratio exceedes predetermined threshold, and record the gas liquid ratio in the predetermined early warning period more than described pre-
Determine the number of threshold value；
Exceed threshold value of warning more than the number of the predetermined threshold in the predetermined early warning period in response to the gas liquid ratio of record,
Generation causes the signal for sending early warning.
2. the device according to claim 1 for being used to detect gas liquid ratio in refueling process, wherein calculating the oil gas volume
Include with the gas liquid ratio of oiling volume：
The number of pulse equivalency corresponding with unit volume read-out set in advance when fuel charger refuels is counted, by the pulse equivalency
Number be multiplied with the unit volume read-out, so as to obtain the oiling volume；Then by the oil gas volume and the oiling
Volume is divided by so as to obtain gas liquid ratio.
3. according to claim 2 be used to detect the device of gas liquid ratio in refueling process, wherein the processor also by with
The record continuous occurrence number of early warning is set to, and exceedes alarm threshold value in response to the continuous occurrence number of the early warning, generation causes to send out
Go out the signal of alarm.
4. the device according to claim 3 for being used to detect gas liquid ratio in refueling process, wherein the setpoint frequency includes
Obtain oil gas volume and oiling volume respectively per 10-60000 milliseconds, it is small to include 12-120 for segment limit during the predetermined early warning
When within, the threshold value of warning scope be included in the predetermined early warning period more than the predetermined threshold number account for it is described predetermined pre-
Total 10%-90% for exceeding number in the alert period, the alarm threshold value scope include early warning occur in 24-720 hours.
5. the device according to claim 4 for being used to detect gas liquid ratio in refueling process, wherein the setpoint frequency includes
Every 20 milliseconds obtain oil gas volume and oiling volume respectively, within segment limit includes 24 hours during the predetermined early warning, institute
The number that threshold value of warning scope is included in the predetermined early warning period more than the predetermined threshold is stated to account in the predetermined early warning period
Total to exceed the 25% of number, the alarm threshold value scope includes early warning occur in 120 hours.
6. the device for being used to detect gas liquid ratio in refueling process according to any one of claim 1-5, wherein described pre-
It is in gas station's atmosphere pollutants emission standardses according to National Standard of the People's Republic of China GB20952-2007 to determine threshold value
Gas liquid ratio regulation or according to Beijing provincial standard DB11/208-2010 on gasoline station oil gas discharge control and limit mark
What the gas liquid ratio in standard was provided and set.
7. a kind of method for detecting gas liquid ratio in refueling process, including step：
Fuel charger is obtained according to setpoint frequency and is in the oil gas volume collected during fueling operation and oiling during fuel charger oiling
Volume；
Calculate the gas liquid ratio of the oil gas volume and oiling volume；
Judge whether the gas liquid ratio exceedes predetermined threshold, and record the gas liquid ratio in the predetermined early warning period more than described pre-
Determine the number of threshold value；
Exceed threshold value of warning more than the number of the predetermined threshold in the predetermined early warning period in response to the gas liquid ratio of record,
Generation causes the signal for sending early warning.
8. the method according to claim 7 for detecting gas liquid ratio in refueling process, wherein calculating the oil gas volume
Include with the gas liquid ratio of oiling volume：
The number of pulse equivalency corresponding with unit volume read-out set in advance when fuel charger refuels is counted, by the pulse equivalency
Number be multiplied with the unit volume read-out, so as to obtain the oiling volume；Then by the oil gas volume and the oiling
Volume is divided by so as to obtain gas liquid ratio.
9. the method according to claim 8 for detecting gas liquid ratio in refueling process, in addition to step：
The continuous occurrence number of early warning is recorded, and exceedes alarm threshold value in response to the continuous occurrence number of the early warning, generation causes to send out
Go out the signal of alarm.
10. the method according to claim 9 for detecting gas liquid ratio in refueling process, wherein the setpoint frequency includes
Obtain oil gas volume and oiling volume respectively per 10-60000 milliseconds, it is small to include 12-120 for segment limit during the predetermined early warning
When within, the threshold value of warning scope be included in the predetermined early warning period more than the predetermined threshold number account for it is described predetermined pre-
Total 10%-90% for exceeding number in the alert period, the alarm threshold value scope include early warning occur in 24-720 hours.
11. the method according to claim 10 for detecting gas liquid ratio in refueling process, wherein the setpoint frequency bag
Include every 20 milliseconds and obtain oil gas volume and oiling volumes respectively, within segment limit includes 24 hours during the predetermined early warning,
The number that the threshold value of warning scope is included in the predetermined early warning period more than the predetermined threshold accounts for the predetermined early warning period
In it is total exceed the 25% of number, the alarm threshold value scope includes early warning occur in 120 hours.
12. the method for detecting gas liquid ratio in refueling process according to any one of claim 7-11, wherein described
Predetermined threshold is on gas station's atmosphere pollutants emission standardses according to National Standard of the People's Republic of China GB20952-2007
In gas liquid ratio regulation or according to Beijing provincial standard DB11/208-2010 on gasoline station oil gas discharge control and limit
What the gas liquid ratio in standard was provided and set.
A kind of 13. equipment for detecting gas liquid ratio in refueling process, it is characterised in that including：
Acquiring unit, the oil gas volume collected during fueling operation and fuel charger are in for obtaining fuel charger according to setpoint frequency
Oiling volume during oiling；
Computing unit, for calculating the gas liquid ratio of the oil gas volume and oiling volume；
Identifying unit, for judging whether the gas liquid ratio exceedes predetermined threshold, and the gas liquid ratio is recorded in predetermined early warning
Exceed the number of the predetermined threshold in section；
Alarm unit, exceed the number of the predetermined threshold in the predetermined early warning period for the gas liquid ratio in response to record
More than threshold value of warning, generation causes the signal for sending early warning.
14. the equipment according to claim 13 for detecting gas liquid ratio in refueling process, wherein computing unit also counts
The number of pulse equivalency corresponding with unit volume read-out set in advance when fuel charger refuels, by the number of the pulse equivalency and
The unit volume read-out is multiplied, so as to obtain the oiling volume；Then the oil gas volume and the oiling volume are divided by
So as to obtain gas liquid ratio.
15. the equipment according to claim 14 for detecting gas liquid ratio in refueling process, wherein the identifying unit is also
The continuous occurrence number of early warning is recorded, and exceedes alarm threshold value in response to the continuous occurrence number of the early warning, generation causes to send police
The signal of report.
16. the equipment according to claim 15 for detecting gas liquid ratio in refueling process, wherein the setpoint frequency bag
Include every 10-60000 milliseconds and obtain oil gas volume and oiling volume respectively, segment limit includes 12-120 during the predetermined early warning
Within hour, the number that the threshold value of warning scope is included in the predetermined early warning period more than the predetermined threshold accounts for described make a reservation for
Always exceed the 10%-90% of number in the early warning period, the alarm threshold value scope includes early warning occur in 24-720 hours.
17. the equipment according to claim 16 for detecting gas liquid ratio in refueling process, wherein the setpoint frequency bag
Include every 20 milliseconds and obtain oil gas volume and oiling volumes respectively, within segment limit includes 24 hours during the predetermined early warning,
The number that the threshold value of warning scope is included in the predetermined early warning period more than the predetermined threshold accounts for the predetermined early warning period
In it is total exceed the 25% of number, the alarm threshold value scope includes early warning occur in 120 hours.
18. the equipment for detecting gas liquid ratio in refueling process according to any one of claim 13-17, wherein described
Predetermined threshold is on gas station's atmosphere pollutants emission standardses according to National Standard of the People's Republic of China GB20952-2007
In gas liquid ratio regulation or according to Beijing provincial standard DB11/208-2010 on gasoline station oil gas discharge control and limit
What the gas liquid ratio in standard was provided and set.
19. a kind of on-line monitoring system for oil gas recovery of gas station, including adding for detecting any one of claim 1-6
The device of gas liquid ratio or being used for any one of claim 7-12 detect gas liquid ratio in refueling process during oil
Method or the equipment for detecting gas liquid ratio in refueling process any one of claim 13-18.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710892278.8A CN107720683A (en) | 2017-09-27 | 2017-09-27 | Detect device, method, equipment and the monitoring system of gas liquid ratio in refueling process |
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| CN201710892278.8A CN107720683A (en) | 2017-09-27 | 2017-09-27 | Detect device, method, equipment and the monitoring system of gas liquid ratio in refueling process |
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Cited By (1)
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