CN110763827B - Oil product temperature obtaining method and device and distillation analyzer - Google Patents
Oil product temperature obtaining method and device and distillation analyzer Download PDFInfo
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- CN110763827B CN110763827B CN201810829127.2A CN201810829127A CN110763827B CN 110763827 B CN110763827 B CN 110763827B CN 201810829127 A CN201810829127 A CN 201810829127A CN 110763827 B CN110763827 B CN 110763827B
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- 238000004821 distillation Methods 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004939 coking Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
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- G01—MEASURING; TESTING
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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Abstract
The embodiment of the invention provides a method and a device for acquiring the temperature of an oil product and a distillation analyzer, which are applied to the distillation analyzer, wherein the method comprises the following steps: when the distillation analyzer is not coked, calculating a first average temperature difference corresponding to the M drops of oil at a first temperature; when the distillation analyzer is coked, calculating a second average temperature difference corresponding to the M drops of oil at a second temperature; determining an error value of the oil product according to the first average temperature difference and the second average temperature difference; and determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product. The method and the device for acquiring the temperature of the oil product and the distillation analyzer provided by the embodiment of the invention are used for improving the accuracy of the detected temperature of the oil product.
Description
Technical Field
The embodiment of the invention relates to the technical field of oil product measurement, in particular to a method and a device for obtaining the temperature of an oil product and a distillation analyzer.
Background
The distillation analyzer is an analytical instrument for measuring the distillation range data of the oil product, the analyzer adopts a high-temperature distillation method, the oil product is heated by a heating rod in the analyzer, and a small amount of residual oil is left after most of the oil product is gasified and separated; and the analysis of the distillation data can be realized by measuring the temperature of a small amount of residual oil.
The residual oil of the distillation analyzer is in a drop shape, and when the distillation analyzer is used for measuring the temperature of an oil product, the residual oil temperature is above 300 ℃ in the operation process of the distillation analyzer, and solid coking is accumulated on the distillation analyzer at the temperature for a long time. When the solid coke is adhered to the bottom of the distillation analyzer, the flow path condition of the residual oil is changed, the state volume of oil drops of the residual oil is changed, and after the volume of the oil drops is changed, the temperature of an oil product obtained by the distillation analyzer has errors, so that the accuracy of the detected oil product temperature is not high.
Disclosure of Invention
The embodiment of the invention provides an oil temperature obtaining method and device and a distillation analyzer, which aim to improve the accuracy of the detected oil temperature.
In a first aspect, an embodiment of the present invention provides a method for obtaining an oil temperature, which is applied to a distillation analyzer, and the method includes:
when the distillation analyzer is not coked, calculating a first average temperature difference corresponding to M drops of oil at a first temperature;
when the distillation analyzer is coked, calculating a second average temperature difference corresponding to the M drops of oil at a second temperature;
determining an error value of the oil product according to the first average temperature difference and the second average temperature difference;
and determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product.
Therefore, according to the method for obtaining the oil temperature provided by the embodiment of the invention, when the oil temperature is calculated, the current temperature of the oil measured by the distillation analyzer is not directly determined as the oil temperature, but first, when the distillation analyzer is not coked, a first average temperature difference corresponding to M drops of oil at a first temperature is calculated, when the distillation analyzer is coked, a second average temperature difference corresponding to M drops of oil at a second temperature is calculated, an error value of the oil is determined according to the first average temperature difference and the second average temperature difference, and then, the temperature of the oil is determined according to the current temperature of the oil measured by the distillation analyzer and the error value of the oil, so that the accuracy of the detected oil temperature is improved.
In a possible implementation manner, the determining an error value of the oil product according to the first average temperature difference and the second average temperature difference includes:
calculating a difference between the first average temperature difference and the second average temperature difference;
determining an error value of the oil product according to the product of the difference value of the first average temperature difference and the second average temperature difference and N; wherein N is the number of oil drops which are randomly arranged, and N is an integer which is more than or equal to 1.
In a possible implementation manner, the determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product includes:
calculating the sum of the current temperature of the oil product and the error value of the oil product, and determining the sum as the temperature of the oil product.
In one possible implementation, the calculating a first average temperature difference corresponding to the M drops of oil at a first temperature when the distillation analyzer is coke-free includes:
when the distillation analyzer is not coked, calculating the temperature difference between two adjacent oil drops in the M oil drops to obtain M-1 temperature differences;
and calculating the average value of the M-1 temperature differences to obtain a first average temperature difference corresponding to the M drops of oil at a first temperature.
In one possible implementation, the calculating a second average temperature difference corresponding to the M drops of oil at a second temperature when the distillation analyzer is coked includes:
when the distillation analyzer is coked, calculating the temperature difference of two adjacent oil drops in the M oil drops to obtain M-1 temperature differences;
and calculating the average value of the M-1 temperature differences to obtain a second average temperature difference corresponding to the M drops of oil at a second temperature.
In a second aspect, an embodiment of the present invention provides an oil temperature obtaining apparatus, which is applied to a distillation analyzer, and the apparatus includes:
the calculation unit is used for calculating a first average temperature difference corresponding to the M drops of oil at a first temperature when the distillation analyzer is not coked;
the calculation unit is also used for calculating a second average temperature difference corresponding to the M drops of oil at a second temperature when the distillation analyzer is coked;
the determining unit is used for determining an error value of the oil product according to the first average temperature difference and the second average temperature difference;
the determining unit is also used for determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product.
Therefore, according to the oil temperature obtaining device provided by the embodiment of the invention, when the oil temperature is calculated, the current temperature of the oil measured by the distillation analyzer is not directly determined as the oil temperature, but first, when the distillation analyzer is not coked, a first average temperature difference corresponding to the M drops of oil at a first temperature is calculated, when the distillation analyzer is coked, a second average temperature difference corresponding to the M drops of oil at a second temperature is calculated, an error value of the oil is determined according to the first average temperature difference and the second average temperature difference, and then, the temperature of the oil is determined according to the current temperature of the oil measured by the distillation analyzer and the error value of the oil, so that the accuracy of the detected oil temperature is improved.
In a possible implementation manner, the determining unit is specifically configured to calculate a difference between the first average temperature difference and the second average temperature difference; determining an error value of the oil product according to the product of the difference value of the first average temperature difference and the second average temperature difference and N; wherein N is the number of oil drops which are randomly arranged, and N is an integer which is more than or equal to 1.
In a possible implementation manner, the determining unit is specifically configured to calculate a sum of the current temperature of the oil product and the error value of the oil product, and determine the sum as the temperature of the oil product.
In a possible implementation manner, the calculating unit is specifically configured to calculate a temperature difference between two adjacent drops of oil in the M drops of oil when the distillation analyzer is not coked, so as to obtain M-1 temperature differences; and calculating the average value of the M-1 temperature differences to obtain a first average temperature difference corresponding to the M drops of oil at a first temperature.
In a possible implementation manner, the calculating unit is specifically configured to calculate a temperature difference between two adjacent oil drops in the M oil drops when the distillation analyzer is coked, so as to obtain M-1 temperature differences; and calculating the average value of the M-1 temperature differences to obtain a second average temperature difference corresponding to the M drops of oil at a second temperature.
In a third aspect, embodiments of the present invention provide a distillation analyzer, which may include:
the oil temperature acquisition device of any one of the above second aspects.
According to the method, the device and the distillation analyzer for obtaining the oil temperature, provided by the embodiment of the invention, when the oil temperature is calculated, the current temperature of the oil measured by the distillation analyzer is not directly determined as the oil temperature, but a first average temperature difference corresponding to M drops of oil at a first temperature is calculated when the distillation analyzer is not coked, a second average temperature difference corresponding to M drops of oil at a second temperature is calculated when the distillation analyzer is coked, an error value of the oil is determined according to the first average temperature difference and the second average temperature difference, and the oil temperature is determined according to the current temperature of the oil measured by the distillation analyzer and the error value of the oil, so that the accuracy of the detected oil temperature is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for obtaining oil temperature according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of another method for obtaining oil temperature according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an oil temperature obtaining device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a distillation analyzer according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the prior art, when solid coke is adhered to the bottom of a distillation analyzer, the flowing path condition of residual oil can be changed, the state volume of oil drops of the residual oil is changed, and after the volume of the oil drops is changed, the temperature of an oil product obtained by the distillation analyzer has errors, so that the accuracy of the detected oil product temperature is low. In order to improve the accuracy of the detected oil temperature, the embodiment of the invention provides an oil temperature obtaining method, when the oil temperature is calculated, the current temperature of the oil measured by a distillation analyzer is not directly determined as the oil temperature, but a first average temperature difference corresponding to M drops of oil at a first temperature is calculated when the distillation analyzer is not coked, a second average temperature difference corresponding to M drops of oil at a second temperature is calculated when the distillation analyzer is coked, an error value of the oil is determined according to the first average temperature difference and the second average temperature difference, and then the temperature of the oil is determined according to the current temperature of the oil measured by the distillation analyzer and the error value of the oil, so that the accuracy of the detected oil temperature is improved.
The following describes the technical solution of the present invention and how to solve the above technical problems with specific examples. The following specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a method for obtaining an oil temperature according to an embodiment of the present invention, where the method for obtaining an oil temperature may include an oil temperature obtaining device, and the oil temperature obtaining device may be disposed in a distillation analyzer. For example, referring to fig. 1, the method for obtaining the temperature of the oil product may include:
s101, when the distillation analyzer is free of coking, calculating a first average temperature difference corresponding to the M drops of oil at a first temperature.
Wherein M is an integer greater than 0. As an example. In the embodiment of the present invention, M is an integer greater than or equal to 4 and less than or equal to 8, which may be set according to actual needs, and here, the embodiment of the present invention is only described by taking M as an example which is greater than or equal to 4 and less than or equal to 8, but the embodiment of the present invention is not limited thereto.
The first temperature can be understood as a standard temperature when the distillation analyzer is free from coking, and the first temperature can be set according to the type of oil products, namely the oil products are different, and the corresponding first temperatures are different. For example, when the oil type is heavy diesel, the corresponding first temperature may be 370 ℃.
When the distillation analyzer is free of coking, when the first average temperature difference corresponding to the M drops of oil is calculated, the temperature corresponding to each drop of oil of the M drops of oil can be determined respectively, after the temperature corresponding to each drop of oil of the M drops of oil is determined, the first average temperature difference corresponding to each drop of oil of the M drops of oil at the first temperature can be calculated according to the temperature corresponding to each drop of oil of the M drops of oil, and therefore the first average temperature difference corresponding to each drop of oil of the M drops of oil when the distillation analyzer is free of coking is obtained.
And S102, when the distillation analyzer is coked, calculating a second average temperature difference corresponding to the M drops of oil at a second temperature.
Wherein the second temperature is less than the first temperature. For example, when the oil type is heavy diesel oil, the corresponding first temperature may be 370 ℃ and the second temperature may be less than 370 ℃.
Similarly, when the distillation analyzer is coked, when the second average temperature difference corresponding to the M drops of oil is calculated, the temperature corresponding to each drop of oil of the M drops of oil may be determined respectively, and after the temperature corresponding to each drop of oil of the M drops of oil is determined, the second average temperature difference corresponding to each drop of oil of the M drops of oil at the second temperature may be calculated according to the temperature corresponding to each drop of oil of the M drops of oil, so that the second average temperature difference corresponding to each drop of oil of the M drops of oil when the distillation analyzer is coked is obtained.
S103, determining an error value of the oil product according to the first average temperature difference and the second average temperature difference.
After a first average temperature difference corresponding to the M drops of oil at the first temperature is obtained through calculation in S101 and a second average temperature difference corresponding to the M drops of oil at the second temperature is obtained through calculation in S102, an error value of the oil product may be determined according to the first average temperature difference and the second average temperature difference, and the following S104 is performed after the error value is obtained:
s104, determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product.
Therefore, in the embodiment of the invention, when the temperature of the oil product is calculated, the measurement error of the oil product caused by coking of the distillation analyzer is considered, and the temperature of the oil product is determined according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product, so that the accuracy of the detected temperature of the oil product is improved.
According to the method for obtaining the oil temperature, provided by the embodiment of the invention, when the oil temperature is calculated, the current temperature of the oil measured by the distillation analyzer is not directly determined as the oil temperature, but first, when the distillation analyzer is not coked, a first average temperature difference corresponding to M drops of oil at a first temperature is calculated, when the distillation analyzer is coked, a second average temperature difference corresponding to M drops of oil at a second temperature is calculated, an error value of the oil is determined according to the first average temperature difference and the second average temperature difference, and then, the temperature of the oil is determined according to the current temperature of the oil measured by the distillation analyzer and the error value of the oil, so that the accuracy of the detected oil temperature is improved.
Based on the embodiment shown in fig. 1, in order to more clearly describe the technical solution provided by the present invention, for example, please refer to fig. 2, where fig. 2 is a schematic flow diagram of another method for obtaining an oil product temperature provided by the embodiment of the present invention, the method for obtaining an oil product temperature may further include:
s201, when the distillation analyzer is free of coking, calculating the temperature difference of two adjacent drops of oil in the M drops of oil to obtain M-1 temperature differences.
Wherein M is an integer greater than 0. As an example. In the embodiment of the present invention, M is an integer greater than or equal to 4 and less than or equal to 8, which may be set according to actual needs, and here, the embodiment of the present invention is only described by taking M as an example which is greater than or equal to 4 and less than or equal to 8, but the embodiment of the present invention is not limited thereto.
For example, taking M equal to 4 as an example, the temperature difference between the first drop of oil and the second drop of oil is calculated to obtain a first temperature difference; calculating the temperature difference between the second drop of oil and the third drop of oil to obtain a second temperature difference; and calculating the temperature difference between the third drop of oil and the fourth drop of oil to obtain a third temperature difference.
After M-1 temperature differences are obtained for the temperature differences of two adjacent drops of oil, the following S202 may be performed to calculate a first average temperature difference corresponding to the 4 drops of oil at the first temperature.
S202, when the distillation analyzer is free of coking, calculating the average value of M-1 temperature differences to obtain a first average temperature difference corresponding to the M drops of oil at a first temperature.
The first temperature can be understood as a standard temperature when the distillation analyzer is free from coking, and the first temperature can be set according to the type of oil products, namely the oil products are different, and the corresponding first temperatures are different. For example, when the oil type is heavy diesel, the corresponding first temperature may be 370 ℃.
For example, after the temperature difference between the first drop of oil and the second drop of oil, the temperature difference between the second drop of oil and the third drop of oil, and the temperature difference between the third drop of oil and the fourth drop of oil are obtained through the above S201, an average value of the three temperature differences may be calculated, so as to obtain a first average temperature difference corresponding to the 4 drops of oil at the first temperature.
It should be noted that, when calculating the first average temperature difference, the temperature difference between two adjacent oil drops in the M oil drops may be calculated, or certainly, the temperature difference may also be calculated by separating two oil drops. For example, the temperature difference between the first drop of oil and the third drop of oil, the temperature difference between the second drop of oil and the fourth drop of oil, and the average value of the two temperature differences may be calculated, and the corresponding first average temperature difference of the 4 drops of oil at the first temperature may also be obtained.
S203, when the distillation analyzer is coked, calculating the temperature difference of two adjacent oil drops in the M oil drops to obtain M-1 temperature differences.
Similarly, when the distillation analyzer is coked, taking M equal to 4 as an example, calculating the temperature difference between the first drop of oil and the second drop of oil to obtain a first temperature difference; calculating the temperature difference between the second drop of oil and the third drop of oil to obtain a second temperature difference; and calculating the temperature difference between the third drop of oil and the fourth drop of oil to obtain a third temperature difference.
After M-1 temperature differences are obtained for the temperature differences of two adjacent drops of oil, the following S204 may be performed to calculate a second average temperature difference corresponding to the 4 drops of oil at the second temperature.
S204, when the distillation analyzer is coked, calculating the average value of M-1 temperature differences to obtain a second average temperature difference corresponding to the M drops of oil at a second temperature.
For example, after the temperature difference between the first drop of oil and the second drop of oil, the temperature difference between the second drop of oil and the third drop of oil, and the temperature difference between the third drop of oil and the fourth drop of oil are obtained through the above S203, an average value of the three temperature differences may be calculated, so as to obtain a second average temperature difference corresponding to the 4 drops of oil at the second temperature.
It should also be noted that, when calculating the second average temperature difference, the temperature difference between two adjacent oil drops in the M oil drops may be calculated, and certainly, the temperature difference may also be calculated by separating two oil drops. For example, the temperature difference between the first drop of oil and the third drop of oil, the temperature difference between the second drop of oil and the fourth drop of oil, and the average value of the two temperature differences may be calculated, and the second average temperature difference corresponding to the 4 drops of oil at the first temperature may also be obtained.
S205, calculating a difference value between the first average temperature difference and the second average temperature difference, and determining an error value of the oil product according to the product of the difference value between the first average temperature difference and the second average temperature difference and N.
N is the number of oil droplets randomly set, and N is an integer greater than or equal to 1, which may be specifically set according to actual needs, where the specific number of N is not further limited in the embodiments of the present invention.
After the first average temperature difference and the second average temperature difference are obtained through the above S202 and S204, respectively, a difference between the first average temperature difference and the second average temperature difference is calculated, and a product of the difference and N is further calculated, and an error value of the oil product is determined by the product of the difference and N.
S206, calculating the sum of the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product, and determining the sum as the temperature of the oil product.
Therefore, in the embodiment of the present invention, when calculating the oil temperature, the measurement error of the oil caused by coking in the distillation analyzer is considered, so that after the error value of the oil is obtained by calculating in S205, the sum of the current temperature of the oil measured by the distillation analyzer and the error value of the oil can be calculated, and the sum is determined as the temperature of the oil, thereby improving the accuracy of the detected oil temperature.
In order to more clearly illustrate the technical solution provided by the embodiment of the present invention, the following will illustrate the method for obtaining the temperature of the oil product provided by the embodiment of the present invention by way of example, specifically:
when the distillation analyzer is free from coking, the frequencies of the number of residual oil drops in the non-coking case are determined to be 1 drop per second, 2 drops per second, 3 drops per second and 4 drops per second corresponding to the temperatures T11, T12, T13 and T14, and the temperatures T11, T12, T13 and T14 are 300 ℃, 298 ℃, 295.2 ℃ and 293.8 ℃ respectively.
When the distillation analyzer is coked, the frequencies of the residual oil drops in the coking condition are determined to be 1 drop per second, 2 drops per second, 3 drops per second and 4 drops per second, and the corresponding temperatures of T21, T22, T23 and T24 are determined, wherein the temperatures of T21, T22, T23 and T24 are 298.5 ℃, 295 ℃, 291.5 ℃ and 289 ℃, respectively.
Calculating a first average temperature difference without coking:
KT11＝T11-T12＝300-298＝2℃；
KT12＝T12-T13＝298-295.2＝2.8℃；
KT13＝T13-T14＝295.2-293.8＝1.4℃；
KT1＝(KT11+KT12+KT13)/3＝(2+2.8+1.4)/3＝2.07℃。
calculating a second average temperature difference with coking:
KT21＝K21-K22＝298.5-295＝3.5℃；
KT22＝K22-K23＝295-291.5＝3.5℃；
KT23＝K23-K24＝291.5-289＝2.5℃；
KT2＝(KT21+KT22+KT23)/3＝(3.5+3.5+2.5)/3＝3.17℃。
calculating the difference value of the first average temperature difference and the second average temperature difference, and determining the error value of the oil product according to the product of the difference value of the first average temperature difference and the second average temperature difference and N:
KT＝KT1-KT2＝3.17-2.07＝1.1℃；
t ═ KT ═ N ═ 1.1 ═ 8 ═ 8.8 ℃; wherein, the setting example values of N are: 8 (unit: drop).
Calculating the sum of the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product, and determining the sum as the temperature of the oil product:
tx 2-Tx 1+ T-277 + 8.8-285.8 ℃, where Tx1 is the current temperature of the oil measured by the distillation analyzer, and its value is 277 ℃.
Therefore, in the embodiment of the invention, when the oil temperature is calculated, the measurement error of the oil caused by coking of the distillation analyzer is considered, so that after the error value of the oil is obtained through calculation, the sum of the current temperature of the oil measured by the distillation analyzer and the error value of the oil can be calculated, and the sum is determined as the temperature of the oil, thereby improving the accuracy of the detected oil temperature.
Fig. 3 is a schematic structural diagram of an oil temperature obtaining apparatus 30 according to an embodiment of the present invention, which is applied to a distillation analyzer, for example, as shown in fig. 3, the oil temperature obtaining apparatus 30 may include:
the calculating unit 301 is configured to calculate a first average temperature difference corresponding to the M drops of oil at a first temperature when the distillation analyzer is not coked.
And the calculating unit 301 is further configured to calculate a second average temperature difference corresponding to the M drops of oil at a second temperature when the distillation analyzer is coked.
The determining unit 302 is configured to determine an error value of the oil product according to the first average temperature difference and the second average temperature difference.
The determining unit 302 is further configured to determine the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product.
Optionally, the determining unit 302 is specifically configured to calculate a difference between the first average temperature difference and the second average temperature difference; determining an error value of the oil product according to the product of the difference value of the first average temperature difference and the second average temperature difference and N; wherein N is the number of oil drops which are randomly arranged, and N is an integer which is more than or equal to 1.
Optionally, the determining unit 302 is specifically configured to calculate a sum of the current temperature of the oil product and the error value of the oil product, and determine the sum as the temperature of the oil product.
Optionally, the calculating unit 301 is specifically configured to calculate a temperature difference between two adjacent drops of oil in the M drops of oil when the distillation analyzer is not coked, so as to obtain M-1 temperature differences; and calculating the average value of the M-1 temperature differences to obtain a first average temperature difference corresponding to the M drops of oil at the first temperature.
Optionally, the calculating unit 301 is specifically configured to calculate a temperature difference between two adjacent drops of oil in the M drops of oil when the distillation analyzer is coked, so as to obtain M-1 temperature differences; and calculating the average value of the M-1 temperature differences to obtain a second average temperature difference corresponding to the M drops of oil at a second temperature.
The oil temperature obtaining device 30 shown in the embodiment of the present invention may implement the technical solution of the oil temperature obtaining method shown in any one of the above embodiments, and the implementation principle and the beneficial effect are similar, which are not described herein again.
Fig. 4 is a schematic structural diagram of a distillation analyzer 40 according to an embodiment of the present invention, and for example, referring to fig. 4, the distillation analyzer 40 includes: the oil temperature obtaining device 30 has similar implementation principle and beneficial effect, and is not described herein again.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The method for acquiring the temperature of the oil product is characterized by being applied to a distillation analyzer and comprises the following steps:
when the distillation analyzer is not coked, calculating a first average temperature difference corresponding to M drops of oil at a first temperature;
when the distillation analyzer is coked, calculating a second average temperature difference corresponding to the M drops of oil at a second temperature;
determining an error value of the oil product according to the first average temperature difference and the second average temperature difference;
determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product;
the determining an error value of the oil product according to the first average temperature difference and the second average temperature difference comprises:
calculating a difference between the first average temperature difference and the second average temperature difference;
determining an error value of the oil product according to the product of the difference value of the first average temperature difference and the second average temperature difference and N; wherein N is the number of randomly arranged oil drops and is an integer greater than or equal to 1;
the determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product comprises the following steps:
calculating the sum of the current temperature of the oil product and the error value of the oil product, and determining the sum as the temperature of the oil product.
2. The method of claim 1, wherein calculating a first average temperature difference for M drops of oil at a first temperature when the distillation analyzer is coke-free comprises:
when the distillation analyzer is not coked, calculating the temperature difference between two adjacent oil drops in the M oil drops to obtain M-1 temperature differences;
and calculating the average value of the M-1 temperature differences to obtain a first average temperature difference corresponding to the M drops of oil at a first temperature.
3. The method of claim 1, wherein calculating a second average temperature difference for M drops of oil at a second temperature when coking occurs in the distillation analyzer comprises:
when the distillation analyzer is coked, calculating the temperature difference of two adjacent oil drops in the M oil drops to obtain M-1 temperature differences;
and calculating the average value of the M-1 temperature differences to obtain a second average temperature difference corresponding to the M drops of oil at a second temperature.
4. The utility model provides an acquisition device of oil temperature, its characterized in that is applied to the distillation analysis appearance, the device includes:
the calculation unit is used for calculating a first average temperature difference corresponding to the M drops of oil at a first temperature when the distillation analyzer is not coked;
the calculation unit is also used for calculating a second average temperature difference corresponding to the M drops of oil at a second temperature when the distillation analyzer is coked;
the determining unit is used for determining an error value of the oil product according to the first average temperature difference and the second average temperature difference;
the determining unit is also used for determining the temperature of the oil product according to the current temperature of the oil product measured by the distillation analyzer and the error value of the oil product;
the determining unit is specifically configured to calculate a difference between the first average temperature difference and the second average temperature difference; determining an error value of the oil product according to the product of the difference value of the first average temperature difference and the second average temperature difference and N; wherein N is the number of randomly arranged oil drops and is an integer greater than or equal to 1;
the determining unit is specifically configured to calculate a sum of the current temperature of the oil product and the error value of the oil product, and determine the sum as the temperature of the oil product.
5. The apparatus of claim 4,
the calculation unit is specifically used for calculating the temperature difference of two adjacent drops of oil in the M drops of oil when the distillation analyzer is not coked to obtain M-1 temperature differences; and calculating the average value of the M-1 temperature differences to obtain a first average temperature difference corresponding to the M drops of oil at a first temperature.
6. The apparatus of claim 4,
the calculation unit is specifically used for calculating the temperature difference of two adjacent drops of oil in the M drops of oil when the distillation analyzer is coked to obtain M-1 temperature differences; and calculating the average value of the M-1 temperature differences to obtain a second average temperature difference corresponding to the M drops of oil at a second temperature.
7. A distillation analyzer, comprising:
the oil temperature obtaining device of any one of the preceding claims 4 to 6.
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