CN207361779U - Detect the equipment and monitoring system of gas liquid ratio in refueling process - Google Patents
Detect the equipment and monitoring system of gas liquid ratio in refueling process Download PDFInfo
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- CN207361779U CN207361779U CN201721257531.4U CN201721257531U CN207361779U CN 207361779 U CN207361779 U CN 207361779U CN 201721257531 U CN201721257531 U CN 201721257531U CN 207361779 U CN207361779 U CN 207361779U
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Abstract
The detection of gas liquid ratio in refueling process is the utility model is related to, is more particularly to used for the equipment and online monitoring system for detecting gas liquid ratio in refueling process.Equipment for detecting gas liquid ratio in refueling process, including：Acquiring unit, the oil gas volume collected during fueling operation and oiling volume during fuel charger oiling are in for obtaining fuel charger according to setpoint frequency；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 records the number that the gas liquid ratio exceedes the predetermined threshold in the predetermined early warning period；Alarm unit, exceedes threshold value of warning, generation causes the signal for sending early warning for number of the gas liquid ratio in response to record more than the predetermined threshold in the predetermined early warning period.
Description
Technical field
The detection of gas liquid ratio in refueling process is the utility model is related to, is more particularly to used to detect gas liquid ratio in refueling process
Equipment and on-line monitoring system for oil gas recovery of gas station.
Background technology
" gas liquid ratio " is commonly referred to as the ratio of the oil gas volume and synchronous oiling volume recycled 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 the prior art uses in detecting is not more than 10 liters/min, maximum range model
120~1400 liters/min is enclosed, and at least 80 liters etc. of oil drum volume is used in detection.But the detection of such gas liquid ratio can not be into
Row is monitored on-line in real time.That is, there are certain detection defect and hidden danger for existing gas liquid ratio detection technique.
Therefore, urgently there is the requirement for gas liquid ratio detection improvement in refueling process in the prior art.
Utility model content
The first aspect according to the present utility model, there is provided a kind of equipment for detecting gas liquid ratio in refueling process, can
With including：Acquiring unit, the oil gas volume collected during fueling operation is in adding for obtaining fuel charger according to setpoint frequency
Oiling volume when oil machine is refueled；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 record the gas liquid ratio and exceed the predetermined threshold in the predetermined early warning period
Number；Alarm unit, the number of the predetermined threshold is exceeded for the gas liquid ratio in response to record in the predetermined early warning period
More than threshold value of warning, generation causes the signal for sending early warning.
In one embodiment of the utility model, wherein computing unit also count fuel charger refuel when with it is set in advance
The number of the corresponding pulse equivalency of unit volume read-out, the number of the pulse equivalency is multiplied with the unit volume read-out, 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.
In another embodiment of the utility model, wherein the identifying unit also records the continuous occurrence number of early warning, and
Exceed alarm threshold value in response to the continuous occurrence number of the early warning, generation causes the signal for sending alarm.
In the further embodiment of the utility model, wherein the setpoint frequency includes obtaining respectively per 10-60000 milliseconds
Oil gas volume and oiling volume, during the predetermined early warning segment limit include 12-120 it is small when within, the threshold value of warning scope bag
The number more than the predetermined threshold in the predetermined early warning period is included to account in the predetermined early warning period always more than the 10%- of number
90%, which includes interior early warning occur when 24-720 is small.
In another embodiment of the utility model, wherein the setpoint frequency obtains once oily respectively including every 20 milliseconds
Air volume and oiling volume, during the predetermined early warning segment limit include 24 it is small when within, which is included in predetermined pre-
The number for exceeding the predetermined threshold in the alert period is accounted for always more than the 25% of number in the predetermined early warning period, the alarm threshold value scope
Including 120 it is small when interior there is early warning.
In one embodiment of the utility model, 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 standards 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.
Second aspect according to the present utility model, there is provided a kind of on-line monitoring system for oil gas recovery of gas station, including it is upper
State be used to detect the device of gas liquid ratio in refueling process or it is above-mentioned be used to detect the method for gas liquid ratio in refueling process,
Or the above-mentioned equipment for detecting gas liquid ratio in refueling process.
Existed by means of be used to the detect equipment of gas liquid ratio and gas station oil gas recycling in refueling process of the utility model
Line monitoring system, can carry out real time and on line monitoring so that petroleum vapor recovery efficiency for the gas liquid ratio in gas station's refueling process
The effect of meet the requirement of environmental protection, for safeguarding that Environmental security, personnel safety and property safety provide relatively reliable guarantee.
Brief description of the drawings
Fig. 1 diagrammatically illustrates the dress for being used to detect gas liquid ratio in refueling process according to the utility model one embodiment
Put；
Fig. 2 diagrammatically illustrate according to another embodiment of the utility model be used for detect setting for gas liquid ratio in refueling process
It is standby.
Embodiment
Below in conjunction with the accompanying drawings, it is described in detail for each embodiment of the utility model.
Fig. 1 diagrammatically illustrates the dress for being used to detect gas liquid ratio in refueling process according to the utility model the first aspect
10 are put, can be included：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 are gone out.It is directed to the first fuel charger 1 and shows peace
Oil gas flow sensing in the first fuel charger 1 and between refueling nozzle (not shown) and the first petroleum vapor recovery circuit 6
Device 4, oil gas flow sensor 4 detect the oil gas volume recycled when the first fuel charger 1 refuels.Also show and refuel positioned at first
Gas liquid ratio acquisition controller 5 in machine 1, for counting when the first fuel charger 1 refuels and unit volume read-out pair set in advance
The number for the pulse equivalency answered, is directed to gas liquid ratio acquisition controller 5, we will also be described in detail later.Here
The oil gas flow sensor 4 mentioned can also be mounted between refueling nozzle (not shown) and the first fuel charger 1, as long as can be
The oil gas volume detection of recycling is realized when first 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 refueling nozzle on each fuel charger, such as 1,2,3,4 ... refueling
Rifle etc..
In one embodiment of the utility model, memory 13 and processor 14 are used, wherein memory 13 is used for
At least one computer code is stored, which is configured as causing the processor 14 when performing on the processor 14
It is able to carry out the required certain operations of the utility model.
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 causes just for the sake of the succinct needs of attached drawing, connecting line 7 in this way
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 utility model, the detection of oil gas flow sensor 4 obtains the first fuel charger 1 and is in oiling
The oil gas volume recycled during state, and the oil gas volume data that these are obtained is supplied to the gas in the first fuel charger 1
Liquor ratio acquisition controller 5.Alternative, gas liquid ratio acquisition controller 5 can also gather oil gas flow sensor 4 with setpoint frequency and examine
The first fuel charger 1 measured is in the oil gas volume recycled during fueling state.5 one side of gas liquid ratio acquisition controller can obtain
The oil gas volume data recycled when being in fueling state to the first fuel charger 1, on the other hand, gas liquid ratio acquisition controller 5 may be used also
To have the function of counter, the number of pulse equivalency during to count oiling, so as to obtain oiling volume.Such as first
Gas liquid ratio acquisition controller 5 will be counted when the first fuel charger 1 refuels and obtained according to setpoint frequency when fuel charger 1 is in fueling state
Oiling volume.Alternative, gas liquid ratio acquisition controller 5 is counted and refueled when the first fuel charger 1 refuels with unit set in advance
The number of corresponding pulse equivalency is measured, the number of the pulse equivalency is multiplied with the unit volume read-out, so as to obtain the oiling body
Product.
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 the corresponding unit of 1 pulse equivalency and 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 the corresponding unit volume read-out of 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
The corresponding unit volume read-out of 1 pulse equivalency is 1 milliliter, 5 milliliters, 10 milliliters either 20 milliliters or 1 pulse equivalency correspond to
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 the corresponding unit volume read-out of equivalent to be multiplied, so as to be refueled every time when terminates to amount to the oiling body added until refueling
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 that 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, and so on.
That is, in one embodiment of the utility model, gas liquid ratio acquisition controller 5 can be used as counter,
Final statistics oiling volume.Alternative, gas liquid ratio acquisition controller 5 is also used as calculator, for calculating the first fuel charger 1
The ratio (gas liquid ratio) of the oil gas volume oiling volume corresponding with special time period recycled during in fueling state, i.e. gas liquid ratio
The oil gas volume and the oiling volume can be divided by so as to obtain gas liquid ratio by acquisition controller 5.In this embodiment, gas-liquid
It will be stored in memory 13 than the gas liquid ratio numerical value that acquisition controller 5 is calculated, processor 14 judges that the gas liquid ratio is
It is no to exceed 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
Number of the gas liquid ratio more than the predetermined threshold in the predetermined early warning period exceed threshold value of warning, generating causes to send early warning
Signal.Alternative, processor 14 judges the exceeded situation of gas liquid ratio, interior in the case where occurring alarming, such as when 24-720 is small
When there is early warning, processor 14 sends instruction so as to be automatically stopped the oiling of the first fuel charger 1 to gas liquid ratio acquisition controller 5
Operation, to safeguard Environmental security, personnel safety and property safety.
In a variant embodiment of the utility model, the detection of oil gas flow sensor 4 obtains the first fuel charger 1 and is in
The oil gas volume recycled during fueling state, and the oil gas volume data active upload that these are obtained is into memory 13.It is standby
Choosing, the processor 14 being connected with memory 13 can also use the mode of poll with setpoint frequency poll oil gas flow sensor
The first fuel charger 1 that 4 detections obtain is in the oil gas volume recycled during fueling state, and these oil gas volume datas are stored
In memory 13.Alternative, in one embodiment of the utility model, for detecting the device of gas liquid ratio in refueling process
10 can also include processor 14, and above-mentioned computer code can be configured as causes processor when being performed on processor 14
14 can obtain the oil gas volume of the collection during fuel charger is in fueling operation and corresponding oiling volume according to setpoint frequency；
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 gas liquid ratio
Exceed the number of the predetermined threshold in the predetermined early warning period；Exceed in response to the gas liquid ratio of record in the predetermined early warning period
The number of the predetermined threshold exceedes threshold value of warning, and generation causes the signal for sending early warning.For example, can be by processor 14 according to depositing
The number of pulse equivalency corresponding with unit volume read-out set in advance when the instruction count fuel charger stored on reservoir 13 refuels,
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 with the oiling volume so as to obtain gas liquid ratio.Such as processor 14 indicates that gas liquid ratio acquisition controller 5 counts the
The number of pulse equivalency when one fuel charger 1 refuels, then by the number of pulse equivalency unit corresponding with 1 pulse equivalency
Volume read-out is multiplied, and terminates to amount to the oiling volume added until refueling during so as to be refueled every time.For example, set in advance
In the case that fixed unit volume read-out is 1 milliliter, gas liquid ratio acquisition controller 5 counts the pulse equivalency that the first fuel charger 1 refuels
Number 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
It is 10000 milliliters (10 liters) that dawn this time oiling, which terminates to amount to the oiling volume added,.Similarly, in unit volume read-out set in advance
In the case of 2 milliliters, 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 result that the number of the pulse equivalency is multiplied with unit volume read-out is 20000, terminates to amount to what is added so as to know this time to refuel
Oiling volume is 20000 milliliters (20 liters).Similarly, in the case where unit volume read-out set in advance is 3 milliliters, gas liquid ratio is adopted
It is 10000 to collect controller 5 to count the pulse equivalency number that the first fuel charger 1 refuels, then the number of the pulse equivalency adds with unit
The result that oil mass is multiplied is 30000, so that it is 30000 milliliter (30 to know that this time oiling terminates to amount to the oiling volume added
Rise).In the case where unit volume read-out set in advance is 10 milliliters, gas liquid ratio acquisition controller 5 counts the first fuel charger 1 and adds
The pulse equivalency number of oil is 10000, then the result that the number of the pulse equivalency is multiplied with unit volume read-out is 100000, so that
It is 100000 milliliters (100 liters) to know that this time oiling terminates to amount to the oiling volume added.In unit volume read-out set in advance
In the case of 2.5 milliliters, it is 10000 that gas liquid ratio acquisition controller 5, which counts the pulse equivalency number that the first fuel charger 1 refuels,
The result that then number of the pulse equivalency is multiplied with unit volume read-out is 25000, is added so as to know this time to refuel to terminate to amount to
Oiling volume be 25000 milliliters (25 liters), etc., and so on.
In one embodiment of the utility model, oil gas flow sensor 4, which detects the first obtained fuel charger 1 and is in, to be added
The oiling volume that the oil gas volume and gas liquid ratio acquisition controller 5 recycled during oil condition obtains will be all stored in memory 13.
The oil gas volume and the oiling volume can be divided by so as to obtain gas-liquid by processor 14 according to the instruction stored in memory 13
Than.Such as processor 14 judges whether the gas liquid ratio exceedes predetermined threshold, and record the gas liquid ratio and surpass in the predetermined early warning period
Cross the number of the predetermined threshold；Surpass in response to the gas liquid ratio of record in the predetermined early warning period more than the number of the predetermined threshold
Threshold value of warning is crossed, generation causes 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 storage data
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 in the period when 1 day or 24 are small, 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 correspondence
Oiling volume.The way of use is, for example, obtained respectively per 10-60000 millisecond according to setpoint frequency an oil gas volume and
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 of poll once,
The oil gas volumetric quantities detected by oil gas flow sensor 4 of first fuel charger, 1 position and corresponding time are stored in storage
In device 13.It is alternative, what the oil gas flow sensor 4 of 1 position of the first fuel charger 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 each embodiment of the utility model can be according to China
People's republic standard GB/T 20952-2007 in gas station's atmosphere pollutants emission standards gas liquid ratio regulation or
Provided according to Beijing provincial standard DB11/208-2010 on the gas liquid ratio in gasoline station oil gas discharge control and limitation standard
And set.Can also be set according to other local standards, such as Tianjin, Shanghai etc., this point is for art technology
It is understandable for personnel.If the gas liquid ratio of record surpasses in the predetermined early warning period more than the number of the predetermined threshold
Threshold value of warning is crossed, then generation causes the signal for sending early warning.Such as threshold value of warning scope is included in the predetermined early warning period and exceedes
The number of predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number.Processor 14 is configured in response to note
The gas liquid ratio of record exceedes threshold value of warning in the predetermined early warning period more than the number of the predetermined threshold, and generation causes to send early warning
Signal.
Setpoint frequency above-mentioned can be every 10-60000 milliseconds and obtain the oil gas volume and oiling volume collected, and be somebody's turn to do
During predetermined early warning segment limit include 12-120 it is small when within, which, which was included in the predetermined early warning period, exceedes that this is pre-
The number for determining threshold value accounts in the predetermined early warning period 10%-90% for always exceeding number, which 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 carries 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 ... refueling nozzles are in fueling operation, can equally realize the function that above-mentioned each embodiment is realized.Separately
Outside, above description is that refueling 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 carries 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 a embodiment is realized.
Alternative, wherein the setpoint frequency includes an every 20 milliseconds oil gas volumes of acquisition and oiling volume, this is predetermined pre-
When alert segment limit include 24 it is small when within, which is included in the predetermined early warning period more than time of the predetermined threshold
Number, which accounted in the predetermined early warning period, always exceedes the 25% of number, the alarm threshold value scope include 120 it is small when interior there is early warning.
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 standards provides to give the threshold that on-line monitoring system is monitored 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 it is continuous 24 it is small when should alarm in severe alarm condition.The utility model people of the utility model devises
Numerical value specified in one kind reference above-mentioned standard, is previously set predetermined threshold.For example, in each embodiment of the utility model
In, predetermined threshold is set as 0.85-1.35, that is to say, that (continuous volume read-out is big every time in the gas-liquid ratio of every refueling nozzle
In 15 liters) scope is all normal number range between 0.85-1.35, it is less than 0.85 in the numerical value of gas liquid ratio or is more than
1.35 all think to exceed 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 be also it is different, this
It is a little understandable for those skilled in the art.
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 number that the gas liquid ratio exceedes the predetermined threshold in predetermined early warning period when small (such as 24) exceedes threshold value of warning.Such as
The total threshold value of warning for exceeding number of segment limit when small (such as 24 in) when exceeding predetermined early warning more than the number of the predetermined threshold
When, processor 14 can indicate that alarm device 17 issues 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 account for it is total in one day when small (24) judge the 40% of number, then processor 14 indicates that alarm device 17 issues 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 it is total in one day when small (24) judge the 15% of number, then do not issue warning signal.
Processor 14 is further configured to the record 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, when early warning has all occurred in continuous 5 days when small (such as 120), 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 utility model, such as setting frequency
Segment limit, threshold value of warning scope, alarm threshold value scope etc. when rate scope, predetermined early warning, those skilled in the art can be according to this
A little scopes combine specific reality and are selected accordingly.
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 utility model, for simplicity, the part with repeating above, repeats no more.
Alternative, in one embodiment of the utility model, for detecting the device 10 of gas liquid ratio in refueling process also
It can include refueling nozzle control module (not shown), the refueling nozzle control module can include 4 He of oil gas flow sensor
Gas liquid ratio acquisition controller 5, refueling nozzle control module early warning and/or report can occurring according to the instruction from processor 14
In the case of police, the fueling operation of fuel charger is automatically cut off.Alternative, for detecting the device 10 of gas liquid ratio in refueling process also
It can include gas liquid ratio adjustment module (not shown), such as PCM modules, the corresponding control of PCM modules output, in particular case
The first petroleum vapor recovery circuit 6 of lower instruction sucks oil gas or sucks oil gas more less so that gas recovery system for oil reaches environmental protection standard.
Fig. 2 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 works 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 with the oiling volume so as to obtain gas liquid ratio.
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,
During the predetermined early warning segment limit include 12-120 it is small when within, the threshold value of warning scope be included in the predetermined early warning period exceed should
The number of predetermined threshold accounts in the predetermined early warning period 10%-90% for always exceeding number, which includes 24-
720 interior when small there is early warning.Alternative, wherein the setpoint frequency obtains an oil gas volume with adding respectively including every 20 milliseconds
Oil volume, during the predetermined early warning segment limit include 24 it is small when within, which is included in the predetermined early warning period and surpasses
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 which 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 standards of standing or according to Beijing provincial standard DB11/208-2010 on refueling
What the gas liquid ratio in exhaust of oil of standing control and limitation standard was provided and set.
Also a kind of on-line monitoring system for oil gas recovery of gas station of the utility model, including above-mentioned be used to detect refueling process
The equipment of middle gas liquid ratio.
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, has very high practical value and commercial value.
It should be noted that the term " comprising " used in each embodiment of the utility model is not construed as only
Including its implication is not limiting.
Further need exist for, it is noted that the technical solution proposed in the utility model can be realized using software form,
It can be 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 an embodiment according to the present utility model, obtain
Unit for example can be pressure checking device, such as pressure sensor；Computing unit can for example pass through multiplier and divider
Combination realize that wherein multiplier is used to obtaining oiling volume, it is that divider is used to obtaining oil gas volume and multiplier plus
The value of oil volume is divided by, to obtain both ratio, i.e. gas liquid ratio；Identifying unit can for example pass through a comparator and counting
The combination of device realizes that the comparator compares above-mentioned ratio with predetermined threshold, counter is more than predetermined threshold to above-mentioned ratio
The number of value is counted；Alarm unit, such as can be realized by signal generator, for example, can produce predetermined voltage or
The voltage/current signals generator of electric current, when the count value in counter exceedes predetermined threshold, one is provided to signal generator
Control signal, can indicate to send the signal of early warning so that the signal generator produces.
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 the embodiment of the utility model operate, and use hardware unit come realize another part behaviour
Make, a feature operation can also be directed to, partly realized using software module form, partly using hardware unit form.
Although describe the utility model by reference to the embodiment being presently contemplated that, it should be appreciated that the utility model
It is not limited to the disclosed embodiments.On the contrary, the utility model be intended in spirit and scope of the appended claims it is included
Various modifications and equivalent arrangements.The scope of the following claims meets most broad interpretation, to include all such modifications
And equivalent structure and function.
Claims (7)
- A kind of 1. 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 records the gas liquid ratio in predetermined early warning Exceed the number of the predetermined threshold in section；Alarm unit, the number of the predetermined threshold is exceeded for the gas liquid ratio in response to record in the predetermined early warning period More than threshold value of warning, generation causes the signal for sending early warning.
- Add 2. the equipment according to claim 1 for detecting gas liquid ratio in refueling process, wherein computing unit also count The number of pulse equivalency corresponding with unit volume read-out set in advance when oil machine is refueled, by the number of the pulse equivalency and institute The multiplication of unit volume read-out is stated, so as to obtain the oiling volume；Then by the oil gas volume and the oiling volume be divided by from And obtain gas liquid ratio.
- 3. the equipment according to claim 2 for detecting gas liquid ratio in refueling process, wherein the identifying unit is also remembered 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 alarm Signal.
- 4. the equipment according to claim 3 for detecting gas liquid ratio in refueling process, wherein the setpoint frequency includes Obtain oil gas volume and oiling volume respectively per 10-60000 millisecond, segment limit is small including 12-120 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 interior early warning occur when 24-720 is small.
- 5. the equipment according to claim 4 for detecting gas liquid ratio in refueling process, wherein the setpoint frequency includes Every 20 milliseconds obtain oil gas volume and oiling volume respectively, during the predetermined early warning segment limit include 24 it is small when within, 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 It is total to exceed the 25% of number, the alarm threshold value scope include 120 it is small when interior there is early warning.
- 6. the equipment for detecting 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 standards 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 on-line monitoring system for oil gas recovery of gas station, including adding for detecting any one of claim 1-6 The equipment of gas liquid ratio during oil.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720683A (en) * | 2017-09-27 | 2018-02-23 | 北京恒合信业技术股份有限公司 | Detect device, method, equipment and the monitoring system of gas liquid ratio in refueling process |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107720683A (en) * | 2017-09-27 | 2018-02-23 | 北京恒合信业技术股份有限公司 | Detect device, method, equipment and the monitoring system of gas liquid ratio in refueling process |
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Denomination of utility model: Equipment and monitoring system for detecting gas-liquid ratio in refueling process Effective date of registration: 20200828 Granted publication date: 20180515 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING HENGHE XINYE TECHNOLOGY Co.,Ltd. Registration number: Y2020990001045 |
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Date of cancellation: 20210611 Granted publication date: 20180515 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: BEIJING HENGHE XINYE TECHNOLOGY Co.,Ltd. Registration number: Y2020990001045 |
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