CN106054950A - Crude oil blending double-closed-loop control method - Google Patents
Crude oil blending double-closed-loop control method Download PDFInfo
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
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Abstract
The invention relates to a crude oil blending double-closed-loop control method, which comprises the following steps: 1) a tank nature adjuster, according to the input crude oil tank blending total amount, crude oil tank blending target nature, initial crude oil tank oil storage amount and initial tank oil storage blending actually-measured nature values, obtains the blending head blending crude oil target nature; 2) calculation, adjustment and execution are carried out in each minor loop control period; and 3) calculation, adjustment and execution are carried out in each major loop control period. The method solves the problems that crude oil blending ratio control is not accurate, control and adjustment are not in time, safety is poor, operating intensity is large and it is hard to meet production requirements.
Description
Technical field
The present invention relates to a kind of petroleum tank blending double-closed-loop control method, in particular for dynamic calculation various ingredients crude oil
Quality proportioning, makes target crude oil character reach to set the control operation method of character.
Background technology
Crude oil blending refers to according to a certain ratio, and blending two or more crude oil obtains has the mixed of expectation physicochemical properties
Close the process of crude oil.Get more and more at oil variety, in the case of quality is uneven, how to be concocted by crude oil, by various
Different crude oils is mixed into the crude oil that qualitative change is steady, meet relevant oil refining apparatus elastic process range constraint, is increasingly becoming refining
Change enterprise from the most important thing planning, dispatching, operate to go to the work of post-project evaluating each aspect.
Crude oil blending main equipment have blending component tank, mix refining pump, regulation valve, mix refining line, concoct first-class.Equipment investment
Greatly, big energy-consuming, operation and maintenance cost is high.Calculate various ingredients crude quality proportioning accurately, in time, implement proportioning and dynamically control
Regulate thus improve the once success rate of crude oil blending, directly affect whole production cost and economic link.
Artificial crude oil blending exist blending burden control inaccuracy, control and regulation not in time, poor stability, manipulation strength big
Etc. shortcoming, it is difficult to meet Production requirement.Use single closed loop control, after once finding that concocting target can not meet requirement, exchange
Conjunction process is helpless；Or component oil property acute variation occurs, performs instrument error and can be overcome the most in time, locate
Reason.The present invention proposes a kind of for petroleum tank blending double-closed-loop control method, in particular for dynamic calculation various ingredients crude oil
Quality proportioning, makes target crude oil character accurately reach to set character.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of petroleum tank blending double-closed-loop control method, and this petroleum tank is concocted
Double-closed-loop control method solve crude oil blending burden control inaccuracy, control and regulation not in time, poor stability, manipulation strength
Greatly, the problem being difficult to meet Production requirement.
In order to solve above-mentioned technical problem, a kind of petroleum tank blending double-closed-loop control method of the present invention, the method includes
Following steps:
Step one, in computer input petroleum tank blending total amount, petroleum tank blending destination properties, original crude oil tank trapped fuel
Amount, the initial stock tank crude oil blending actual measurement character measured, it is former that tank property adjustments device calculates blending head blending according to above-mentioned data
Oil destination properties；
Step 2, computing in the subloop control cycle, regulate and perform: component formula actuator is former according to blending head blending
Oil destination properties and the actual n kind component oil property measured calculate n kind component crude quality proportioning K, according to obtain
Quality proportioning K carries out composition flow rate distribution and performs, and quality proportioning K carries out obtaining a blending amount after composition flow rate distribution performs,
Now the time is continuously a subloop control cycle, and quality proportioning K carries out the blending amount obtained after composition flow rate distribution performs
It is the blending amount in the subloop control cycle, subsequently into the next subloop controller cycle, at next subloop
Start time in controller cycle, measuring blending head blending crude oil actual measurement character at blending head, the blending head measured is concocted
Crude oil actual measurement character feeds back to component formula actuator, and component formula actuator will blending head blending crude oil actual measurement character and blending
Head blending crude oil destination properties compare, if blending head blending crude oil actual measurement character with blending head blending crude oil destination properties it
Between error more than character error limit, the K value recalculating to make new advances；If blending head blending crude oil actual measurement character and blending head
Error between blending crude oil destination properties is less than character error limit, then K value is constant；Then according to K value performs each group of distribution
Shunt volume, the blending amount in cumulative each subloop control cycle；
Step 3, computing in the major loop control cycle, regulate and perform: the step 2 time is continuously a major loop and controls
In the cycle, the blending amount in each subloop control cycle cumulative in step 2 is that a major loop controls cycle blending amount,
Measure at blending tank and obtain new stock tank crude oil blending actual measurement character, original crude oil tank trapped fuel amount is controlled week with a major loop
Phase blending amount adds up and can obtain new petroleum tank trapped fuel amount, by new petroleum tank trapped fuel amount, the blending actual measurement of new stock tank crude oil
Character feeds back to tank property adjustments device, and tank property adjustments device is according to new petroleum tank trapped fuel amount, the blending actual measurement of new stock tank crude oil
Character and a major loop control cycle blending amount and calculate the blending head blending crude oil destination properties made new advances, and repeat step 2,
In cumulative each major loop control cycle, blending amount show that major loop controls the modulated conjunction total amount in cycle, if major loop controls the cycle
The total amount of the blending total amount petroleum tank blending less than 2/3rds, then repeat step 3 and perform next major loop and control week
Phase；If major loop controls the total amount of the blending total amount in the cycle petroleum tank blending more than or equal to 2/3rds and adjusts less than petroleum tank
The total amount closed, then amendment major loop controls the cycle, repeats the next major loop of step 3 entrance and controls the cycle；If major loop controls
The blending total amount in cycle is always more than or equal to the total amount of petroleum tank blending, and the most whole regulation process terminates.
Described concrete operation rate-determining steps is as follows:
(1) blending head blending crude oil destination properties P is calculatedhsInitial value Phs0:
Mr(0)P+MtPhs0=(Mr(0)+Mt)Ps
(2) component formula actuator, according to Phs, and PjObtain n kind component crude quality proportioning K；
(3) cycle T is controlled at a major loopo(p) (p takes 1, and 2 ...；Take To(1)=To0) in the time:
1) subloop controls cycle Ti(p, q) in (q takes 1,2 ..., To(p)/Ti), take Ti(p, q)=Ti0, by quality
Proportioning K controls each composition flow rate, corresponding blending amount Mp,q；
2), after a subloop controls to arrive cycle time, P is comparedhsAnd Ph；
If error | Phs-Ph|<Pe, it is constant that next subloop controls cycle proportioning K, and performs new proportioning；
If error Phs-Ph>Pe, then P is pressedhs(q+1)=Phs(q)-KpPeCarry out new proportioning by (2) calculate and perform；
If error Ph-Phs>Pe, then P is pressedhs(q+1)=Phs(q)+KpPeCarry out new proportioning by (2) calculate and perform；
3) an accumulative major loop controls blending amount M in cycleo(p)=∑ Mp,q；
4) q is after adding 1, returns 1) one subloop control cycle of entrance continues executing with down, until q=To/Ti+ 1 turn next
Step (4) performs；
(4) tank property adjustments device realizes next major loop control cycle blending head blending crude oil destination properties Phs(p+1)
Calculating:
Mr(p)P+(Mt-M0(p))Phs(p+1)=(Mr(p)+Mt-Mo(p))Ps
(5) calculate accumulative major loop and control the blending total amount ∑ M in cycleo(p), then Mr(p)=Mr(0)+∑MoP (), p is certainly
Adding 1, then q is reset to 1::
If ∑ Mo(p)<2Mt/ 3, directly turn (3) and enter next major loop control cycle To(p+1), circulation performs；
If 2Mt/3t≤∑Mo(p)<Mt, amendment major loop controls cycle To=To0/ 2, then turn (3) and enter next one master
Circuit controls cycle To(p+1), circulation performs；
If ∑ Mo(p)≥Mt, the blending of the most whole crude oil terminates；
Wherein: Mt: the total amount of petroleum tank blending, Ps: petroleum tank blending destination properties, To(p): pth major loop controls week
Phase, To0: initial major loop controls cycle, Ti(p, q): in pth the major loop control cycle, q-th subloop controls cycle, Ti0:
Initial subloop controls cycle, Mr(p): the petroleum tank trapped fuel amount in pth major loop cycle, Mr(0): original crude oil tank trapped fuel amount,
P: stock tank crude oil blending actual measurement character, Pe: character error limit, Kp: character regulation coefficient, Mo: a major loop controls the cycle
Blending amount, Mo(p): pth major loop controls the blending amount in cycle, Phs: blending head blending crude oil destination properties, Phs0: initially adjust
Syncephalon blending crude oil destination properties, Pj: component crude oil j surveys character, Ph: blending head blending crude oil actual measurement character, Mp,q: pth
In the major loop control cycle, q-th subloop controls the blending amount in cycle, ∑ Mp,q: the q in pth the major loop control cycle
Subloop controls the blending amount of periodic accumulation.
Described n kind component oil property, blending head crude oil actual measurement character, stock tank crude oil blending actual measurement character are divided by character
Analyzer table obtains.
Described each subloop controls the blending amount in cycle, major loop is controlled the blending amount in cycle and all supervised by effusion meter
Survey.
It is 1min that described major loop controls cycle initial value.
The one subloop control cycle is Ti0=5s.
After the present invention uses said structure and method, have the advantage that
Total amount based on petroleum tank blending, petroleum tank blending destination properties, major loop control the blending amount in cycle, petroleum tank
Trapped fuel amount, stock tank crude oil blending actual measurement character, carries out concocting in the current major loop control cycle at the beginning of head blending crude oil destination properties
Initial value prediction computing, and using this predictive value as the input setting value of component formula actuator in the subloop control cycle；Secondary time
In the road control cycle, component formula actuator controls the blending head crude oil destination properties of period forecasting computing input based on major loop
Initial value, each blending component oil property and blending head blending crude oil actual measurement character, computing also controls each composition flow rate quality proportioning.
Major loop controls based on amount and the character of crude oil in blending tank, the target in next major loop control cycle to be made tune
Whole so that final blending target is up to standard；Subloop control then can timely and effective suppression due to component oil property change, perform
The impact on blending process that instrument error causes.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the frame principles schematic diagram of the present invention.
Detailed description of the invention
Shown in Fig. 1, a kind of petroleum tank blending double-closed-loop control method, the method comprises the following steps:
Step one, in computer input petroleum tank blending total amount, petroleum tank blending destination properties, original crude oil tank trapped fuel
Amount, the initial stock tank crude oil blending actual measurement character measured, it is former that tank property adjustments device calculates blending head blending according to above-mentioned data
Oil destination properties；
Step 2, computing in the subloop control cycle, regulate and perform: component formula actuator is former according to blending head blending
Oil destination properties and the actual n kind component oil property measured calculate n kind component crude quality proportioning K, according to obtain
Quality proportioning K carries out composition flow rate distribution and performs, and quality proportioning K carries out obtaining a blending amount after composition flow rate distribution performs,
Now the time is continuously a subloop control cycle, and quality proportioning K carries out the blending amount obtained after composition flow rate distribution performs
It is the blending amount in the subloop control cycle, subsequently into the next subloop controller cycle, at next subloop
Start time in controller cycle, measuring blending head blending crude oil actual measurement character at blending head, the blending head measured is concocted
Crude oil actual measurement character feeds back to component formula actuator, and component formula actuator will blending head blending crude oil actual measurement character and blending
Head blending crude oil destination properties compare, if blending head blending crude oil actual measurement character with blending head blending crude oil destination properties it
Between error more than character error limit, the K value recalculating to make new advances；If blending head blending crude oil actual measurement character and blending head
Error between blending crude oil destination properties is less than character error limit, then K value is constant；Then according to K value performs each group of distribution
Shunt volume, the blending amount in cumulative each subloop control cycle；
Step 3, computing in the major loop control cycle, regulate and perform: the step 2 time is continuously a major loop and controls
In the cycle, the blending amount in each subloop control cycle cumulative in step 2 is that a major loop controls cycle blending amount,
Measure at blending tank and obtain new stock tank crude oil blending actual measurement character, original crude oil tank trapped fuel amount is controlled week with a major loop
Phase blending amount adds up and can obtain new petroleum tank trapped fuel amount, by new petroleum tank trapped fuel amount, the blending actual measurement of new stock tank crude oil
Character feeds back to tank property adjustments device, and tank property adjustments device is according to new petroleum tank trapped fuel amount, the blending actual measurement of new stock tank crude oil
Character and a major loop control cycle blending amount and calculate the blending head blending crude oil destination properties made new advances, and repeat step 2,
In cumulative each major loop control cycle, blending amount show that major loop controls the modulated conjunction total amount in cycle, if major loop controls the cycle
The total amount of the blending total amount petroleum tank blending less than 2/3rds, then repeat step 3 and perform next major loop and control week
Phase；If major loop controls the total amount of the blending total amount in the cycle petroleum tank blending more than or equal to 2/3rds and adjusts less than petroleum tank
The total amount closed, then amendment major loop controls the cycle, repeats the next major loop of step 3 entrance and controls the cycle；If major loop controls
The blending total amount in cycle is always more than or equal to the total amount of petroleum tank blending, and the most whole regulation process terminates.
Described concrete operation rate-determining steps is as follows:
(1) blending head blending crude oil destination properties P is calculatedhsInitial value Phs0:
Mr(0)P+MtPhs0=(Mr(0)+Mt)Ps
(2) component formula actuator, based on granted patent " a kind of many crude oil many character concoction optimization method (ZL
201210052695.9) " according to Phs, and PjObtain n kind component crude quality proportioning K；
(3) cycle T is controlled at a major loopo(p) (p takes 1, and 2 ...；Take To(1)=To0) in the time:
1) subloop controls cycle Ti(p, q) in (q takes 1,2 ..., To(p)/Ti), take Ti(p, q)=Ti0, by quality
Proportioning K controls each composition flow rate, corresponding blending amount Mp,q；
2), after a subloop controls to arrive cycle time, P is comparedhsAnd Ph；
If error | Phs-Ph|<Pe, it is constant that next subloop controls cycle proportioning K, and performs new proportioning；
If error Phs-Ph>Pe, then P is pressedhs(q+1)=Phs(q)-KpPeCarry out new proportioning by (2) calculate and perform；
If error Ph-Phs>Pe, then P is pressedhs(q+1)=Phs(q)+KpPeCarry out new proportioning by (2) calculate and perform；
3) an accumulative major loop controls blending amount M in cycleo(p)=∑ Mp,q；
4) q is after adding 1, returns 1) one subloop control cycle of entrance continues executing with down, until q=To/Ti+ 1 turn next
Step (4) performs；
(4) tank property adjustments device realizes next major loop control cycle blending head blending crude oil destination properties Phs(p+1)
Calculating:
Mr(p)P+(Mt-M0(p))Phs(p+1)=(Mr(p)+Mt-Mo(p))Ps
(5) calculate accumulative major loop and control the blending total amount ∑ M in cycleo(p), then Mr(p)=Mr(0)+∑MoP (), p is certainly
Adding 1, then q is reset to 1::
If ∑ Mo(p)<2Mt/ 3, directly turn (3) and enter next major loop control cycle To(p+1), circulation performs；
If 2Mt/3t≤∑Mo(p)<Mt, amendment major loop controls cycle To=To0/ 2, then turn (3) and enter next one master
Circuit controls cycle To(p+1), circulation performs；
If ∑ Mo(p)≥Mt, the blending of the most whole crude oil terminates；
Wherein: Mt: the total amount of petroleum tank blending, Ps: petroleum tank blending destination properties, To(p): pth major loop controls week
Phase, To0: initial major loop controls cycle, Ti(p, q): in pth the major loop control cycle, q-th subloop controls cycle, Ti0:
Initial subloop controls cycle, Mr(p): the petroleum tank trapped fuel amount in pth major loop cycle, Mr(0): original crude oil tank trapped fuel amount,
P: stock tank crude oil blending actual measurement character, Pe: character error limit, Kp: character regulation coefficient, Mo: a major loop controls the cycle
Blending amount, Mo(p): pth major loop controls the blending amount in cycle, Phs: blending head blending crude oil destination properties, Phs0: initially adjust
Syncephalon blending crude oil destination properties, Pj: component crude oil j surveys character, Ph: blending head blending crude oil actual measurement character, Mp,q: pth
In the major loop control cycle, q-th subloop controls the blending amount in cycle, ∑ Mp,q: the q in pth the major loop control cycle
Subloop controls the blending amount of periodic accumulation.
Described n kind component oil property, blending head crude oil actual measurement character, stock tank crude oil blending actual measurement character are divided by character
Analyzer table obtains.
Described each subloop controls the blending amount in cycle, major loop is controlled the blending amount in cycle and all supervised by effusion meter
Survey.
It is 1min that described major loop controls cycle initial value.
The one subloop control cycle is Ti0=5s.
Total amount based on petroleum tank blending, petroleum tank blending destination properties, major loop control the blending amount in cycle, petroleum tank
Trapped fuel amount, stock tank crude oil blending actual measurement character, carries out concocting in the current major loop control cycle at the beginning of head blending crude oil destination properties
Initial value prediction computing, and using this predictive value as the input setting value of component formula actuator in the subloop control cycle；Secondary time
In the road control cycle, component formula actuator controls the blending head crude oil destination properties of period forecasting computing input based on major loop
Initial value, each blending component oil property and blending head blending crude oil actual measurement character, computing also controls each composition flow rate quality proportioning.
Major loop controls based on amount and the character of crude oil in blending tank, the target in next major loop control cycle to be made tune
Whole so that final blending target is up to standard；Subloop control then can timely and effective suppression due to component oil property change, perform
The impact on blending process that instrument error causes.
Not having the technical characteristic described in detail in the application is prior art.Above-described embodiment only illustrative the application
Principle and effect, not for limit the application.Any person skilled in the art all can be in the essence without prejudice to the application
God and under the scope of, above-described embodiment is modified or changes.Therefore, art has usually intellectual do not taking off
All equivalences completed under spirit disclosed herein with technological thought are modified or change, must be by the right of the application
Require to be contained.
Claims (6)
1. the double-closed-loop control method of a crude oil blending, it is characterised in that: the method comprises the following steps:
Step one, in computer input petroleum tank blending total amount, petroleum tank blending destination properties, original crude oil tank trapped fuel amount,
The initial stock tank crude oil blending actual measurement character measured, tank property adjustments device calculates blending head blending crude oil mesh according to above-mentioned data
Mark character；
Step 2, computing in the subloop control cycle, regulate and perform: component formula actuator is according to blending head blending crude oil mesh
Mark character and the actual n kind component oil property measured calculate n kind component crude quality proportioning K, according to the quality obtained
Proportioning K carries out composition flow rate distribution and performs, and quality proportioning K carries out obtaining a blending amount, now after composition flow rate distribution performs
Time is continuously a subloop and controls the cycle, and the blending amount that quality proportioning K carries out obtaining after composition flow rate distribution performs is one
Blending amount in the individual subloop control cycle, subsequently into the next subloop controller cycle, controls at next subloop
Start time in device cycle, at blending head, measure blending head blending crude oil actual measurement character, the blending head measured blending crude oil
Actual measurement character feeds back to component formula actuator, and blending head blending crude oil actual measurement character is adjusted by component formula actuator with blending head
Close crude oil destination properties to compare, if between blending head blending crude oil actual measurement character and blending head blending crude oil destination properties
Error is more than character error limit, the K value recalculating to make new advances；If blending head blending crude oil actual measurement character and blending head blending
Error between crude oil destination properties is less than character error limit, then K value is constant；Then according to K value performs to distribute each component stream
Amount, the blending amount in cumulative each subloop control cycle；
Step 3, computing in the major loop control cycle, regulate and perform: the step 2 time is continuously a major loop and controls week
Phase, the blending amount in each subloop control cycle cumulative in step 2 is that a major loop controls cycle blending amount, is adjusting
Close to measure at tank and obtain new stock tank crude oil blending actual measurement character, original crude oil tank trapped fuel amount is controlled the cycle with a major loop
Blending amount adds up and can obtain new petroleum tank trapped fuel amount, by new petroleum tank trapped fuel amount, new stock tank crude oil blending actual measurement property
Matter feeds back to tank property adjustments device, and tank property adjustments device is according to new petroleum tank trapped fuel amount, new stock tank crude oil blending actual measurement property
Matter and a major loop control cycle blending amount and calculate the blending head blending crude oil destination properties made new advances, and repeat step 2, tired
In adding each major loop control cycle, blending amount show that major loop controls the modulated conjunction total amount in cycle, if major loop controls the cycle
The total amount of the blending total amount petroleum tank blending less than 2/3rds, then repeat the next major loop of step 3 execution and control the cycle；
If major loop controls the total amount of the blending total amount in the cycle petroleum tank blending more than or equal to 2/3rds and concocts less than petroleum tank
Total amount, then amendment major loop controls the cycle, repeats step 3 and enters next major loop and control the cycle；If major loop controls week
The blending total amount of phase is always more than or equal to the total amount of petroleum tank blending, and the most whole regulation process terminates.
2. the double-closed-loop control method concocted according to the crude oil described in claim 1, it is characterised in that: concrete operation rate-determining steps
As follows:
(1) blending head blending crude oil destination properties P is calculatedhsInitial value Phs0:
Mr(0)P+MtPhs0=(Mr(0)+Mt)Ps
(2) component formula actuator, according to Phs, and PjObtain n kind component crude quality proportioning K；
(3) cycle T is controlled at a major loopo(p) (p takes 1, and 2 ...；Take To(1)=To0) in the time:
1) subloop controls cycle Ti(p, q) in (q takes 1,2 ..., To(p)/Ti), take Ti(p, q)=Ti0, by quality proportioning
K controls each composition flow rate, corresponding blending amount Mp,q；
2), after a subloop controls to arrive cycle time, P is comparedhsAnd Ph；
If error | Phs-Ph|<Pe, it is constant that next subloop controls cycle proportioning K, and performs new proportioning；
If error Phs-Ph>Pe, then P is pressedhs(q+1)=Phs(q)-KpPeCarry out new proportioning by (2) calculate and perform；
If error Ph-Phs>Pe, then P is pressedhs(q+1)=Phs(q)+KpPeCarry out new proportioning by (2) calculate and perform；
3) an accumulative major loop controls blending amount M in cycleo(p)=∑ Mp,q；
4) q is after adding 1, returns 1) one subloop control cycle of entrance continues executing with down, until q=To/Ti+ 1 turn next step
(4) perform；
(4) tank property adjustments device realizes next major loop control cycle blending head blending crude oil destination properties Phs(p+1) meter
Calculate: Mr(p)P+(Mt-M0(p))Phs(p+1)=(Mr(p)+Mt-Mo(p))Ps
(5) calculate accumulative major loop and control the blending total amount ∑ M in cycleo(p), then Mr(p)=Mr(0)+∑MoP (), p is from adding 1, so
Rear q is reset to 1::
If ∑ Mo(p)<2Mt/ 3, directly turn (3) and enter next major loop control cycle To(p+1), circulation performs；
If 2Mt/3t≤∑Mo(p)<Mt, amendment major loop controls cycle To=To0/ 2, then turn (3) and enter next major loop control
Cycle T processedo(p+1), circulation performs；
If ∑ Mo(p)≥Mt, the blending of the most whole crude oil terminates；
Wherein: Mt: the total amount of petroleum tank blending, Ps: petroleum tank blending destination properties, To(p): pth major loop controls the cycle,
To0: initial major loop controls cycle, Ti(p, q): in pth the major loop control cycle, q-th subloop controls cycle, Ti0: just
Beginning subloop controls cycle, Mr(p): the petroleum tank trapped fuel amount in pth major loop cycle, Mr(0): original crude oil tank trapped fuel amount, P:
Stock tank crude oil blending actual measurement character, Pe: character error limit, Kp: character regulation coefficient, Mo: a major loop controls the tune in cycle
Resultant, Mo(p): pth major loop controls the blending amount in cycle, Phs: blending head blending crude oil destination properties, Phs0: initially concoct
Head blending crude oil destination properties, Pj: component crude oil j surveys character, Ph: blending head blending crude oil actual measurement character, Mp,q: pth is main
In the circuit controls cycle, q-th subloop controls the blending amount in cycle, ∑ Mp,q: q in pth the major loop control cycle is secondary
The blending amount of circuit controls periodic accumulation.
3. the double-closed-loop control method concocted according to the crude oil described in claim 1, it is characterised in that: described n kind component crude oil
Character, blending head crude oil actual measurement character, stock tank crude oil blending actual measurement character are obtained by property analysis instrument.
4. the double-closed-loop control method concocted according to the crude oil described in claim 1, it is characterised in that: described each subloop control
The blending amount in cycle processed, major loop are controlled the blending amount in cycle and are all monitored by effusion meter.
5. the double-closed-loop control method concocted according to the crude oil described in claim 1, it is characterised in that: described major loop controls week
Initial initial value is 1min.
6. the double-closed-loop control method concocted according to the crude oil described in claim 1, it is characterised in that: one subloop control
Cycle processed is Ti0=5s.
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| CN108905665A (en) * | 2018-07-24 | 2018-11-30 | 国家能源投资集团有限责任公司 | Blended fuel oil configuration method and device, blended fuel oil configuration equipment and system |
| CN113165175A (en) * | 2018-11-28 | 2021-07-23 | 拜耳公司 | Method for transferring a pourable medium |
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