CN114593369B - Method and device for cutting mixed oil of finished oil - Google Patents
Method and device for cutting mixed oil of finished oil Download PDFInfo
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- CN114593369B CN114593369B CN202011403830.0A CN202011403830A CN114593369B CN 114593369 B CN114593369 B CN 114593369B CN 202011403830 A CN202011403830 A CN 202011403830A CN 114593369 B CN114593369 B CN 114593369B
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000002156 mixing Methods 0.000 claims abstract description 369
- 238000001514 detection method Methods 0.000 claims abstract description 129
- 230000008859 change Effects 0.000 claims abstract description 82
- 239000000203 mixture Substances 0.000 claims description 31
- 238000005070 sampling Methods 0.000 claims description 23
- 238000011144 upstream manufacturing Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 12
- 238000011161 development Methods 0.000 claims description 12
- 238000011897 real-time detection Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 503
- 230000018109 developmental process Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002329 infrared spectrum Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/03—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of several different products following one another in the same conduit, e.g. for switching from one receiving tank to another
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Abstract
The invention discloses a method and a device for cutting mixed oil of finished oil, wherein the method comprises the following steps: determining the length of a first oil mixing section when the oil to be cut is positioned at a mileage position of an interface detection system by using detection data of the oil mixing interface detection system, and drawing a first oil mixing concentration change curve; taking the length of the first oil mixing section and the first oil mixing concentration change curve as initial state conditions, and predicting the length of the second oil mixing section and the second oil mixing concentration change curve after the oil mixing section reaches a receiving station; determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the cutting concentration of the oil mixing and the second oil mixing concentration change curve; and carrying out oil mixing cutting according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail. The invention provides an economic, efficient and practical cutting method for the oil mixing section with small density difference, converts the concentration representation of the oil mixing cutting node into the time point representation, solves the problem of the influence of the detection time difference of the non-real-time detection equipment, and has better field operation executable.
Description
Technical Field
The invention relates to the technical field of oil pipeline conveying, in particular to a method and a device for cutting mixed oil of finished oil.
Background
At present, almost all finished oil pipelines adopt a sequential conveying mode to carry out oil transportation, and adjacent forward/backward oil products of different batches and models are likely to generate mixed oil under the influence of convection and diffusion transmission in the sequential conveying process. The oil receiving station is required to detect the oil mixing interface, cut the section of oil mixture and receive the oil into the front/rear oil pure oil tank and the oil mixing tank. The current method for detecting the oil mixing interface is mainly to use the density difference of adjacent oil products and to use a densimeter to carry out real-time online detection, but the method is suitable for the oil mixing section with larger density difference, and the oil products with similar densities, such as 92 gasoline/gasoline blending component oil and 95 gasoline or aviation kerosene/diesel oil, are difficult to detect. For the oil mixing interface with smaller density difference, although the detection of the oil mixing interface is carried out by adopting a near infrared spectrum analysis method in the prior art, how to guide the cutting of the oil mixing after the oil mixing interface is detected by using the method is not described, and the feasibility of practical operation is lacking.
Disclosure of Invention
Aiming at the problems existing in the prior art, the embodiment of the invention provides a method and a device for cutting mixed oil of finished oil.
Specifically, the embodiment of the invention provides the following technical scheme:
In a first aspect, an embodiment of the present invention provides a method for cutting a mixed oil of a finished oil, where a density difference is less than a preset threshold, including:
determining the mileage position of an oil mixing interface detection system positioned at the upstream of a receiving station;
Determining the length of a first oil mixing section when the oil to be cut is positioned at a mileage position of an interface detection system by using detection data of the oil mixing interface detection system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time when the oil to be cut passes through the oil mixing interface detection system;
Taking the length of the first oil mixing section and the first oil mixing concentration change curve as initial state conditions, and predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station;
Determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve;
And carrying out oil mixing cutting according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail.
Further, the determining the mileage position of the oil mixing interface detection system located at the upstream of the receiving station field specifically includes:
determining the maximum oil mixing length according to the historical operation data of the pipeline;
Converting the maximum oil mixing length into the maximum oil mixing station passing time expressed by time according to the measured flow corresponding to the maximum oil mixing length;
determining the maximum sampling number according to the maximum oil mixing station passing time and the sampling frequency;
Determining the distance between the oil mixing interface detection system and the receiving station according to the preset design flow, the maximum sampling number, the pipeline cross-sectional area and the detection time of the detection equipment;
and determining the mileage position of the oil mixing interface detection system positioned at the upstream of the receiving station according to the distance.
Further, the oil mixing cutting is carried out according to the oil mixing head cutting time and the oil mixing tail cutting time, and the method specifically comprises the following steps:
the oil before the cutting time of the oil mixing head is input to the first oil tank, the oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and the oil after the cutting time of the oil mixing tail is input to the second oil tank.
Further, the oil mixing cutting is carried out according to the oil mixing head cutting time and the oil mixing tail cutting time, and the method specifically comprises the following steps:
And determining the oil mixing amount cut into the oil mixing tank according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station.
In a second aspect, the present embodiment further provides a device for cutting mixed oil of a product oil, where the density difference is smaller than a preset threshold, including:
The first determining module is used for determining the mileage position of the oil mixing interface detection system positioned at the upstream of the receiving station;
The second determining module is used for determining the length of a first oil mixing section when the oil to be cut is positioned at the mileage position of the interface detecting system by using the detection data of the oil mixing interface detecting system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time of the oil mixing to be cut passing through the oil mixing interface detecting system;
the prediction module is used for predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station yard by taking the first oil mixing section length and the first oil mixing concentration change curve as initial state conditions;
The third determining module is used for determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve;
And the oil mixing cutting module is used for carrying out oil mixing cutting according to the oil mixing head cutting time and the oil mixing tail cutting time.
Further, the first determining module is specifically configured to:
determining the maximum oil mixing length according to the historical operation data of the pipeline;
Converting the maximum oil mixing length into the maximum oil mixing station passing time expressed by time according to the measured flow corresponding to the maximum oil mixing length;
determining the maximum sampling number according to the maximum oil mixing station passing time and the sampling frequency;
Determining the distance between the oil mixing interface detection system and the receiving station according to the preset design flow, the maximum sampling number, the pipeline cross-sectional area and the detection time of the detection equipment;
And determining the mileage position of the oil mixing interface detection system according to the distance.
Further, the mixed oil cutting module is specifically configured to:
the oil before the cutting time of the oil mixing head is input to the first oil tank, the oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and the oil after the cutting time of the oil mixing tail is input to the second oil tank.
Further, the mixed oil cutting module is specifically configured to:
And determining the oil mixing amount cut into the oil mixing tank according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station.
In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, where the processor implements the method for cutting a mixed oil of finished oil according to the first aspect when executing the computer program.
In a fourth aspect, embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of cutting a product oil according to the first aspect.
According to the technical scheme, the method and the device for cutting the finished oil mixed oil are used for cutting the finished oil mixed oil with the density difference smaller than the preset threshold, the mileage position of an oil mixed interface detection system positioned at the upstream of a receiving station is firstly determined, then the detection data of the oil mixed interface detection system is utilized to determine the length of a first mixed oil section when the mixed oil to be cut is positioned at the mileage position of the interface detection system, a first mixed oil concentration change curve is drawn, the abscissa of the first mixed oil concentration change curve is the mixed oil concentration percentage, the ordinate is the time when the mixed oil to be cut passes through the oil mixed interface detection system, then the length of the first mixed oil section and the first mixed oil concentration change curve are used as initial state conditions, the length of a second mixed oil section and the second mixed oil concentration change curve obtained after the mixed oil section is subjected to development change from the mileage position to the receiving station are predicted, then the cutting time and the cutting time of the mixed oil tail corresponding to the required cutting concentration and the cutting time of the tail cutting according to the required mixed oil concentration and the second mixed oil concentration change curve are determined, and finally the cutting time of the mixed oil is carried out. It can be understood that when the oil mixing interface detection is performed on the oil mixing with smaller density difference, the real-time online detection cannot be performed by adopting a densimeter, but usually, the detection cannot be performed by adopting a near infrared spectrum analysis method or other methods, and the detection time difference is influenced because the detection methods cannot obtain the processing result in real time. It can be seen that the embodiments of the present invention provide specific operationally implemented means for oil blending cutting, including means for determining the mileage position of the oil blending interface detection system upstream of the receiving yard, means for converting the concentration or density representation of the oil blending cutting node into a time point representation, and means for predicting the length of the second blending section and the second blending concentration variation curve after reaching the receiving yard. Therefore, the embodiment of the invention provides an economic, efficient and practical cutting method for the oil mixing section with small density difference, converts the concentration or density representation of the oil mixing cutting node into the time point representation, solves the influence of the detection time difference of the non-real-time detection equipment, has better field actual operation performability, and solves the technical problem that the oil mixing cutting cannot be conveniently and accurately performed at present.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for cutting a mixed oil of a product oil according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cutting device for mixed oil of product oil according to an embodiment of the present invention;
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following describes the embodiments of the present invention further with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
The invention aims to provide a method and a device for cutting mixed oil of finished oil, which are used for detecting the mixed oil interface between adjacent oil products and cutting an oil mixing section economically and safely in the process of sequentially conveying the finished oil pipelines. The method and the device for cutting the mixed oil of the finished oil are described in detail by specific examples.
Fig. 1 shows a flowchart of a method for cutting mixed oil of a finished oil according to an embodiment of the present invention, as shown in fig. 1, where the method for cutting mixed oil of a finished oil according to an embodiment of the present invention is used for cutting mixed oil of a finished oil with a density difference less than a preset threshold, and specifically includes the following contents:
step 101: determining the mileage position of an oil mixing interface detection system positioned at the upstream of a receiving station;
In this step, the oil mixing interface detection system may include an interface detection device, a pressure control device, a pipeline, and a safety protection device. The oil mixing interface detection system is arranged on an oil pipeline in a bypass pipe mode. The oil mixing interface detection system is arranged at the upstream of the receiving station and is at a certain distance from the receiving station, and the distance can be determined by adopting an empirical value or a processing mode described in the following embodiment.
In the step, the interface detection equipment can adopt sulfur content on-line detection equipment, a near infrared spectrometer and the like, and specifically, the equipment selection is carried out by detecting the type of the oil mixing interface according to the requirement.
In the step, the data acquisition system acquires detection data of the interface detection system and transmits the detection data to the computing system through the signal transmission system, the computing system is arranged in the receiving station control room, and the computing system automatically processes and analyzes the detection data of the interface detection system and gives out a mixed oil cutting scheme.
Step 102: determining the length of a first oil mixing section when the oil to be cut is positioned at a mileage position of an interface detection system by using detection data of the oil mixing interface detection system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time when the oil to be cut passes through the oil mixing interface detection system;
In this step, the execution body may be a computing system located in a control room of the receiving station, where the computing system automatically processes the detection data of the analysis interface detection system and gives a mixed oil cutting scheme, and the specific method is as follows: calculating the length of an oil mixing section when the oil mixing is positioned at a mileage position of the interface detection system by using detection data of the interface detection system, drawing an oil mixing concentration change curve, wherein the abscissa of the curve is the percentage of the oil mixing concentration, the ordinate is the time when the oil mixing passes through the oil mixing interface detection system, then predicting and calculating the oil mixing length and the oil mixing concentration change curve of the oil mixing section after the development change of L mileage according to a common empirical formula or an intelligent algorithm by taking the obtained oil mixing length and the oil mixing concentration change curve as initial state conditions. The L mileage refers to the distance from the mileage location where the interface detection system is located to the receiving station.
In this embodiment, it should be noted that the method for cutting the mixed oil of the product oil provided in this embodiment is mainly used for cutting the mixed oil of the product oil with a density difference smaller than a preset threshold, where the preset threshold may take a value of 5kg/m 3.
It can be understood that when the oil mixing interface detection is performed on the oil mixing with smaller density difference, the real-time online detection cannot be performed by adopting a densimeter, but usually, the detection cannot be performed by adopting a near infrared spectrum analysis method or other methods, and the detection time difference is influenced because the detection methods cannot obtain the processing result in real time. It can be understood that the application is characterized in that the first mixed oil concentration change curve is skillfully drawn, namely the application skillfully correlates the percentage of the mixed oil concentration with the time of the mixed oil to be cut passing through the mixed oil interface detection system, so that the mixed oil cutting concentration can be converted into the cutting time point corresponding to cutting according to the requirement, thereby the mixed oil cutting has operability, and simultaneously, after the mixed oil concentration change curve is drawn, the new mixed oil change curve of the mixed oil concentration change curve after reaching a receiving station can be predicted by using prediction means such as experience values, and the like, thereby the influence of the detection time difference of non-real-time detection equipment can be solved, the better on-site practical operation performability can be realized, and the technical problem that the mixed oil cutting can not be conveniently and accurately carried out at present can be well solved.
Step 103: taking the length of the first oil mixing section and the first oil mixing concentration change curve as initial state conditions, and predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station;
in this step, the length of the first oil mixing section and the first oil mixing concentration change curve obtained in step 102 are taken as initial conditions, and the second oil mixing length and the second oil mixing concentration change curve of the oil mixing section after the development change of the L mileage can be predicted and calculated according to the following manner.
The calculation formula of the second oil mixing length is as follows:
the formula of the second mixed oil concentration change curve is as follows:
Wherein: c is the length of the second mixed oil; c 0 is the first oil mixing length; c is the second oil blend length without considering the first oil blend length; l is the mileage of the oil mixing interface detection system from the terminal receiving station; z is the corresponding value of the concentration of the symmetrical cutting oil mixing head; pe d is the Becky number; d is the inner diameter of the pipeline; re is the Reynolds number; alpha is a correction coefficient; k A is the concentration percentage of the mixed oil; τ is the time ratio; phi is a function, and the calculation result can be obtained through table lookup.
It should be noted that, the first mixed oil section length and the first mixed oil concentration change curve are the conditions corresponding to the mixed oil when the mixed oil reaches the receiving station, and the second mixed oil section length and the second mixed oil concentration change curve are the conditions corresponding to the mixed oil when the mixed oil reaches the receiving station, so that the cutting time of the mixed oil head and the cutting time of the mixed oil tail corresponding to the required cutting concentration can be determined according to the required mixed oil cutting concentration and the second mixed oil concentration change curve.
Step 104: determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve;
in this step, according to the required cutting concentration of the mixed oil, the cutting time of the mixed oil head and the cutting time of the mixed oil tail corresponding to the required cutting concentration are found out by comparing with the second mixed oil concentration change curve obtained in step 103. For example, the mixed oil head cutting time point T 1 and the mixed oil tail cutting time point T 2 are obtained by comparing the second mixed oil concentration change curve obtained in step 103 with 95% and 5% as the mixed oil cutting concentrations.
Step 105: and carrying out oil mixing cutting according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail.
In this step, the oil mixing cutting can be performed according to the oil mixing head cutting time and the oil mixing tail cutting time obtained in step 104. For example, an oil before the cutting time of the oil mixing head is input to the first oil tank, an oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and an oil after the cutting time of the oil mixing tail is input to the second oil tank. For another example, the mixed oil amount V cut into the mixed oil tank can be determined according to the mixed oil head cutting time, the mixed oil tail cutting time and the actual oil flow average value Q detected by the receiving station flowmeter, for example, v= (T 2-T1) ×q.
According to the technical scheme, the method for cutting the oil mixture of the finished product provided by the embodiment of the invention comprises the steps of firstly determining the mileage position of an oil mixture interface detection system, then determining the length of a first oil mixture section when the oil mixture to be cut is positioned at the mileage position of the interface detection system by utilizing the detection data of the oil mixture interface detection system, drawing a first oil mixture concentration change curve, wherein the abscissa of the first oil mixture concentration change curve is the percentage of the oil mixture concentration, the ordinate is the time when the oil mixture to be cut passes through the oil mixture interface detection system, then taking the length of the first oil mixture section and the first oil mixture concentration change curve as initial state conditions, predicting the length of a second oil mixture section and the second oil mixture concentration change curve obtained after the oil mixture section is subjected to development change from the mileage position to a receiving station, and then determining the cutting time of an oil mixture head and the cutting time of an oil mixture tail according to the required cutting concentration and the second oil mixture concentration change curve, and finally carrying out oil mixture cutting according to the cutting time of the oil mixture head and the cutting time of the oil mixture tail. Therefore, the embodiment of the invention provides a specific oil mixing cutting means which can be operated and implemented, and the specific oil mixing cutting means comprises means for determining the mileage position of the oil mixing interface detection system, means for converting the concentration or density representation of an oil mixing cutting node into a time point representation, means for predicting the length of a second oil mixing section and a second oil mixing concentration change curve after the oil mixing cutting node arrives at a receiving station, and the like. Therefore, the embodiment of the invention provides an economic, efficient and practical cutting method for the oil mixing section with small density difference, converts the concentration or density representation of the oil mixing cutting node into the time point representation, solves the influence of the detection time difference of the non-real-time detection equipment, has better field actual operation performability, and solves the technical problem that the oil mixing cutting cannot be conveniently and accurately performed at present.
Based on the foregoing embodiments, in this embodiment, the determining the mileage position of the oil-mixing interface detection system located upstream of the receiving station specifically includes:
determining the maximum oil mixing length according to the historical operation data of the pipeline;
Converting the maximum oil mixing length into the maximum oil mixing station passing time expressed by time according to the measured flow corresponding to the maximum oil mixing length;
determining the maximum sampling number according to the maximum oil mixing station passing time and the sampling frequency;
Determining the distance between the oil mixing interface detection system and the receiving station according to the preset design flow, the maximum sampling number, the pipeline cross-sectional area and the detection time of the detection equipment;
and determining the mileage position of the oil mixing interface detection system positioned at the upstream of the receiving station according to the distance.
In this embodiment, the oil mixing interface detection system is disposed upstream of the receiving station, and a certain distance mileage from the receiving station may be calculated by the following manner:
A. Finding out the maximum oil mixing length according to the historical operation data of the pipeline;
B. converting the maximum oil mixing length into maximum oil mixing station passing time T expressed by time by using the measured flow corresponding to the maximum oil mixing length;
C. The maximum sampling number n is related to the maximum oil mixing station passing time T and the sampling frequency H obtained in the step2, and n=T/H;
D. Distance receiving station mileage l=q Design of /a×n×t, where Q Design of is pipeline design flow, a is pipeline cross-sectional area, and t is detection time of detection equipment;
wherein, the (mixed oil) detection equipment has the capability of continuous sampling and continuous detection, and the detection time is less than or equal to 2min.
In this embodiment, it should be noted that, by using the method provided in this embodiment, the mileage position of the oil mixing interface detection system can be determined more reasonably, the mileage position can meet the actual operation requirement, and the length of the first oil mixing section and the first oil mixing concentration change curve with reference significance can be obtained, so that a foundation is laid for accurate segmentation of the subsequent oil mixing.
Based on the above-described embodiments, in the present embodiment, the oil mixing cutting is performed according to the oil mixing head cutting time and the oil mixing tail cutting time, specifically including:
the oil before the cutting time of the oil mixing head is input to the first oil tank, the oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and the oil after the cutting time of the oil mixing tail is input to the second oil tank.
Therefore, according to the embodiment, according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail, the two kinds of pure oil and the mixed oil at the junction position can be accurately mixed and cut, and the whole treatment mode is simple, convenient and accurate.
Based on the above-described embodiments, in the present embodiment, the oil mixing cutting is performed according to the oil mixing head cutting time and the oil mixing tail cutting time, specifically including:
And determining the oil mixing amount cut into the oil mixing tank according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station.
In this embodiment, according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station, the oil mixing amount cut into the oil mixing tank is determined, so that the oil mixing amount to be introduced into the oil mixing tank can be known in advance, thereby facilitating the preparation of the oil mixing tank with corresponding capacity in advance.
For a better understanding of the present invention, the following examples are set forth to illustrate the present invention, but are not to be construed as limiting the present invention.
The total length of a finished oil pipeline is 200 km, the inner diameter of the pipeline is 300mm, 95 # gasoline and 92 # gasoline component oil are sequentially conveyed, the pipeline conveying design flow is 350m 3/h, the actual flow is 320m 3/h, the mixed oil is received at a terminal station, and the mixed oil tank, the 95 # gasoline tank and the 92 # gasoline component oil tank are arranged at the terminal receiving station.
The interface detection equipment of the interface detection system is an internal infrared spectrometer, the interface detection equipment is a near infrared spectrometer, the oxygen content of the component oil mixture of the No. 95 gasoline and the No. 92 gasoline is detected, the sample detection time is controlled to be 2min through limiting the wavelength range, the sample detection time is arranged at the L kilometer position at the upstream of the terminal receiving station, and the calculation process of L is as follows:
1. Analyzing according to the pipeline operation history data to obtain the maximum oil mixing length;
2. converting the maximum oil mixing length into a time representation, wherein the time for the section to pass through the terminal receiving station is 30min;
3. sampling frequency 1 min/min, then the maximum sampling number n=30;
4. Design flow q=350 m 3/h, pipeline cross-sectional area a=0.25 pi d 2＝0.07m2, detection time 2min from receiving yard mileage l=q Design of /a×n×t=4.97 km.
The data acquisition system and the signal transmission system transmit the detection data to the terminal receiving station computing system, and the computing system automatically analyzes and calculates the data and provides a receiving scheme, and the specific method is as follows:
Converting the oxygen content detection data of the mixed oil into the mixed oil concentration according to a linear relation, calculating the length of a mixed oil section to be 2000m, wherein the abscissa of a mixed oil concentration curve is concentration percentage, and the ordinate is the time point when the mixed oil passes through the mileage of an interface detection system, and the time is accurate to the minute;
Taking the mixed oil length of 2000m and the mixed oil concentration curve obtained in the steps as initial conditions, and predicting and calculating the mixed oil length increase of 2150m of the mixed oil section after 4.76km pipe transportation by using a common empirical formula, wherein the time represented by the abscissa of the mixed oil concentration curve is increased;
Taking 95% and 5% as mixed oil cutting concentration, and comparing the predicted mixed oil concentration curve to obtain a mixed oil head cutting time point T1 and a mixed oil tail cutting time point T2;
The average value Q=320 m 3/h of the actual oil flow detected at the inlet and outlet of the receiving station is calculated to obtain the mixed oil quantity V cut into the mixed oil tank, and the mixed oil quantity V=53 m 3 calculated in the embodiment.
In the actual operation process, the oil product enters a No. 95 gasoline tank before the time point of T 1, the oil product enters a mixed oil tank between the time point of T 2 and the time point of T 1, and the oil product enters a No. 92 gasoline component oil tank after the time point of T 2.
The method for cutting the mixed oil of the finished oil provides an economic, efficient and practical cutting method for the mixed oil section with small density difference, converts the concentration or density representation of the mixed oil cutting node into a time point representation, solves the problem of influence of detection time difference of non-real-time detection equipment, and has good field practical operation performability.
Fig. 2 is a schematic structural diagram of a cutting device for mixed oil of finished oil according to an embodiment of the present invention, as shown in fig. 2, the cutting device for mixed oil of finished oil according to an embodiment of the present invention is used for cutting mixed oil of finished oil with a density difference smaller than a preset threshold, and includes: a first determination module 21, a second determination module 22, a prediction module 23, a third determination module 24, and an oil blend cutting module 25, wherein:
a first determining module 21, configured to determine a mileage position of the oil mixing interface detection system;
The second determining module 22 is configured to determine, according to detection data of the oil mixing interface detection system, a first oil mixing section length when the oil mixing to be cut is located at a mileage position where the interface detection system is located, and draw a first oil mixing concentration change curve, where an abscissa of the first oil mixing concentration change curve is a percentage of oil mixing concentration, and an ordinate is a time when the oil mixing to be cut passes through the oil mixing interface detection system;
the prediction module 23 is configured to predict a second mixed oil section length and a second mixed oil concentration change curve obtained after the mixed oil section undergoes a development change from the mileage location to the receiving station yard, using the first mixed oil section length and the first mixed oil concentration change curve as initial state conditions;
a third determining module 24, configured to determine a cutting time of the oil mixing head and a cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration and the second mixed oil concentration variation curve;
the oil mixing cutting module 25 is used for performing oil mixing cutting according to the oil mixing head cutting time and the oil mixing tail cutting time.
Based on the foregoing embodiments, in this embodiment, the first determining module is specifically configured to:
determining the maximum oil mixing length according to the historical operation data of the pipeline;
Converting the maximum oil mixing length into the maximum oil mixing station passing time expressed by time according to the measured flow corresponding to the maximum oil mixing length;
determining the maximum sampling number according to the maximum oil mixing station passing time and the sampling frequency;
Determining the distance between the oil mixing interface detection system and the receiving station according to the preset design flow, the maximum sampling number, the pipeline cross-sectional area and the detection time of the detection equipment;
And determining the mileage position of the oil mixing interface detection system according to the distance.
Based on the foregoing embodiment, in this embodiment, the oil mixing cutting module is specifically configured to:
the oil before the cutting time of the oil mixing head is input to the first oil tank, the oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and the oil after the cutting time of the oil mixing tail is input to the second oil tank.
Based on the foregoing embodiment, in this embodiment, the oil mixing cutting module is specifically configured to:
And determining the oil mixing amount cut into the oil mixing tank according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station.
The working principle and the beneficial effects of the cutting device for mixed oil of the product oil provided in the embodiment are similar, and the cutting device for mixed oil of the product oil provided in the embodiment is not described in detail here.
Based on the same inventive concept, a further embodiment of the present invention provides an electronic device, see fig. 3, comprising in particular: a processor 301, a memory 302, a communication interface 303, and a communication bus 304;
wherein, the processor 301, the memory 302, and the communication interface 303 complete communication with each other through the communication bus 304; the communication interface 303 is used for realizing information transmission between devices;
The processor 301 is configured to invoke a computer program in the memory 302, where the processor executes the computer program to implement all the steps of the above-mentioned method for cutting a mixed oil of finished oil, for example, the processor executes the computer program to implement the following steps: determining the mileage position of the oil mixing interface detection system; determining the length of a first oil mixing section when the oil to be cut is positioned at a mileage position of an interface detection system by using detection data of the oil mixing interface detection system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time when the oil to be cut passes through the oil mixing interface detection system; taking the length of the first oil mixing section and the first oil mixing concentration change curve as initial state conditions, and predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station; determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve; and carrying out oil mixing cutting according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail.
Based on the same inventive concept, a further embodiment of the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, realizes all the steps of the above-mentioned product oil blending cutting method, for example, the processor realizes the following steps when executing the computer program: determining the mileage position of the oil mixing interface detection system; determining the length of a first oil mixing section when the oil to be cut is positioned at a mileage position of an interface detection system by using detection data of the oil mixing interface detection system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time when the oil to be cut passes through the oil mixing interface detection system; taking the length of the first oil mixing section and the first oil mixing concentration change curve as initial state conditions, and predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station; determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve; and carrying out oil mixing cutting according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail.
Further, the logic instructions in the memory described above may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment of the invention. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on such understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the method of cutting a product oil mixture according to the embodiments or some parts of the embodiments.
Furthermore, in the present disclosure, such as "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Moreover, in the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Furthermore, in the description herein, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for cutting a product oil blend, characterized by comprising:
determining the mileage position of an oil mixing interface detection system positioned at the upstream of a receiving station;
Determining the length of a first oil mixing section when the oil to be cut is positioned at a mileage position of an interface detection system by using detection data of the oil mixing interface detection system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time when the oil to be cut passes through the oil mixing interface detection system;
Taking the length of the first oil mixing section and the first oil mixing concentration change curve as initial state conditions, and predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station;
Determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve;
And carrying out oil mixing cutting according to the cutting time of the oil mixing head and the cutting time of the oil mixing tail.
2. The method for cutting a mixed oil of a product oil according to claim 1, wherein determining the mileage position of the mixed oil interface detection system located upstream of the receiving station comprises:
determining the maximum oil mixing length according to the historical operation data of the pipeline;
Converting the maximum oil mixing length into the maximum oil mixing station passing time expressed by time according to the measured flow corresponding to the maximum oil mixing length;
determining the maximum sampling number according to the maximum oil mixing station passing time and the sampling frequency;
Determining the distance between the oil mixing interface detection system and the receiving station according to the preset design flow, the maximum sampling number, the pipeline cross-sectional area and the detection time of the detection equipment;
And determining the mileage position of the oil mixing interface detection system according to the distance.
3. The method for cutting mixed oil of finished oil according to claim 1, wherein the cutting of mixed oil is performed according to a cutting time of a mixed oil head and a cutting time of a mixed oil tail, specifically comprising:
the oil before the cutting time of the oil mixing head is input to the first oil tank, the oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and the oil after the cutting time of the oil mixing tail is input to the second oil tank.
4. The method for cutting mixed oil of finished oil according to claim 1, wherein the cutting of mixed oil is performed according to a cutting time of a mixed oil head and a cutting time of a mixed oil tail, specifically comprising:
And determining the oil mixing amount cut into the oil mixing tank according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station.
5. A device for cutting a product oil mixture, characterized by comprising:
The first determining module is used for determining the mileage position of the oil mixing interface detection system positioned at the upstream of the receiving station;
The second determining module is used for determining the length of a first oil mixing section when the oil to be cut is positioned at the mileage position of the interface detecting system by using the detection data of the oil mixing interface detecting system, and drawing a first oil mixing concentration change curve, wherein the abscissa of the first oil mixing concentration change curve is the percentage of the oil mixing concentration, and the ordinate is the time of the oil mixing to be cut passing through the oil mixing interface detecting system;
the prediction module is used for predicting a second oil mixing section length and a second oil mixing concentration change curve obtained after the oil mixing section undergoes development change from the mileage position to a receiving station yard by taking the first oil mixing section length and the first oil mixing concentration change curve as initial state conditions;
The third determining module is used for determining the cutting time of the oil mixing head and the cutting time of the oil mixing tail corresponding to the required cutting concentration according to the required cutting concentration of the oil mixing and the second oil mixing concentration change curve;
And the oil mixing cutting module is used for carrying out oil mixing cutting according to the oil mixing head cutting time and the oil mixing tail cutting time.
6. The device for cutting mixed oil of claim 5, wherein the first determining module is specifically configured to:
determining the maximum oil mixing length according to the historical operation data of the pipeline;
Converting the maximum oil mixing length into the maximum oil mixing station passing time expressed by time according to the measured flow corresponding to the maximum oil mixing length;
determining the maximum sampling number according to the maximum oil mixing station passing time and the sampling frequency;
Determining the distance between the oil mixing interface detection system and the receiving station according to the preset design flow, the maximum sampling number, the pipeline cross-sectional area and the detection time of the detection equipment;
And determining the mileage position of the oil mixing interface detection system according to the distance.
7. The device according to claim 5, wherein the oil mixing cutting module is specifically configured to:
the oil before the cutting time of the oil mixing head is input to the first oil tank, the oil between the cutting time of the oil mixing head and the cutting time of the oil mixing tail is input to the oil mixing tank, and the oil after the cutting time of the oil mixing tail is input to the second oil tank.
8. The device according to claim 5, wherein the oil mixing cutting module is specifically configured to:
And determining the oil mixing amount cut into the oil mixing tank according to the cutting time of the oil mixing head, the cutting time of the oil mixing tail and the average value of the actual oil flow detected by the flowmeter of the receiving station.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of cutting a product oil blend according to any one of claims 1 to 4 when the computer program is executed.
10. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the computer program, when executed by a processor, implements the method of cutting a product oil blend according to any of claims 1 to 4.
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| CN116341764B (en) * | 2023-05-24 | 2023-09-26 | 中国石油大学(华东) | Method and system for predicting mixed oil concentration distribution of finished oil pipeline based on historical data |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253255A (en) * | 1998-11-07 | 2000-05-17 | 商鹏 | Cutting and back-mixing technology for mixed oil |
| CN1412467A (en) * | 2001-10-05 | 2003-04-23 | 出光石油化学株式会社 | Method for transporting and transferring crude oil and naphtha |
| JP2005147896A (en) * | 2003-11-17 | 2005-06-09 | Kagawa Univ | Method and apparatus for measuring concentration of mixed solution component |
| CA2548645A1 (en) * | 2003-12-09 | 2005-06-23 | Shell Internationale Research Maatschappij B.V. | Transporting fluids through a conduit |
| CN102080767A (en) * | 2009-11-27 | 2011-06-01 | 辽宁石油化工大学 | Method and device for detecting oil mixing interface in sequential oil transportation |
| CN102606887A (en) * | 2011-01-25 | 2012-07-25 | 中国石油天然气集团公司 | Judgment method for oil mixture interface positions in sequential pipelining by product oil pipeline |
| CN106764448A (en) * | 2015-11-20 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of Batch Transportation mixed contamination plug cutting method |
| CN210624165U (en) * | 2019-05-16 | 2020-05-26 | 南京富岛信息工程有限公司 | Near infrared spectrum analysis pipeline of automatic oil cutting forecasting device for long-distance pipeline oil product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2936755C (en) * | 2016-07-19 | 2019-01-29 | Texon Lp | Methods of reducing transmix production on petroleum pipelines |
-
2020
- 2020-12-04 CN CN202011403830.0A patent/CN114593369B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253255A (en) * | 1998-11-07 | 2000-05-17 | 商鹏 | Cutting and back-mixing technology for mixed oil |
| CN1412467A (en) * | 2001-10-05 | 2003-04-23 | 出光石油化学株式会社 | Method for transporting and transferring crude oil and naphtha |
| JP2005147896A (en) * | 2003-11-17 | 2005-06-09 | Kagawa Univ | Method and apparatus for measuring concentration of mixed solution component |
| CA2548645A1 (en) * | 2003-12-09 | 2005-06-23 | Shell Internationale Research Maatschappij B.V. | Transporting fluids through a conduit |
| CN102080767A (en) * | 2009-11-27 | 2011-06-01 | 辽宁石油化工大学 | Method and device for detecting oil mixing interface in sequential oil transportation |
| CN102606887A (en) * | 2011-01-25 | 2012-07-25 | 中国石油天然气集团公司 | Judgment method for oil mixture interface positions in sequential pipelining by product oil pipeline |
| CN106764448A (en) * | 2015-11-20 | 2017-05-31 | 中国石油化工股份有限公司 | A kind of Batch Transportation mixed contamination plug cutting method |
| CN210624165U (en) * | 2019-05-16 | 2020-05-26 | 南京富岛信息工程有限公司 | Near infrared spectrum analysis pipeline of automatic oil cutting forecasting device for long-distance pipeline oil product |
Non-Patent Citations (2)
| Title |
|---|
| 成品油管道混油动态体积分数判断两段式切割法;李雪;王晓霖;肖文涛;;油气储运;20171031(10);第1149-1153页 * |
| 西部成品油管道混油切割新方法;丁小勇;;油气储运;20131106(12);第1279-1281 * |
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