CN108375310B - A kind of vacuum furnace beacon flint control method - Google Patents
A kind of vacuum furnace beacon flint control method Download PDFInfo
- Publication number
- CN108375310B CN108375310B CN201810137995.4A CN201810137995A CN108375310B CN 108375310 B CN108375310 B CN 108375310B CN 201810137995 A CN201810137995 A CN 201810137995A CN 108375310 B CN108375310 B CN 108375310B
- Authority
- CN
- China
- Prior art keywords
- vacuum furnace
- oil plant
- boiler tube
- beacon flint
- boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G7/00—Distillation of hydrocarbon oils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of vacuum furnace beacon flint control method, the oil plant of vacuum furnace is divided to two boiler tubes to enter, and two boiler tubes are arranged in juxtaposition, and two boiler tubes respectively include flow measurement instrument and temperature measuring instrument.FI_A is first boiler tube feed rate instrument；TC_A is first boiler tube oil plant temperature measuring instrument, and FI_B is second boiler tube feed rate instrument；TC_B is second boiler tube oil plant temperature measuring instrument；TC_DFO is heater outlet temperature controller；Sound state idea of balance of the vacuum furnace beacon flint control method based on total system material and energy, from the stable angle of overall process overall operation, dynamic relationship between comprehensive vacuum furnace upstream and downstream each unit, when upstream units operating condition changes, it quickly and effectively obtains upstream units work information and implements the control of beacon flint in time, be conducive to lifting device operation stability, improve the operating efficiency of device.
Description
Technical field
The invention belongs to process industry production technical field, it is related to a kind of vacuum furnace beacon flint control method, this method can be with
Controlling plan design applied to vacuum furnace in process industry process units.
Background technique
In oil-refining chemical production, vacuum furnace is the key that influence target product fractionating effect and plant energy consumption energy consumption are set
It is standby, therefore, vacuum furnace it is efficiently and smoothly operated particularly significant.In the day-to-day operation of vacuum furnace, the steady control of heater outlet temperature
Always measure vacuum furnace even running key index, and heater outlet temperature it is steady whether be directly related to reduced pressure downstream tower
The normal operation of unit.In general, heating furnace is realized by adjusting fuel tolerance to heater outlet temperature using fuel gas as heat source
Steady control, but heater outlet temperature is often influenced by furnace entrance feed rate, feeding temperature variation, and fuel tolerance is in turn resulted in
Fluctuation, be unfavorable for energy efficiency and the even running of device.
The present invention proposes a kind of vacuum furnace control of brand new ideas for deficiency existing for traditional vacuum furnace control program
Method, referred to as vacuum furnace beacon flint control method.Beacon flint control thought from this ancient times of China's beacon tower transmitting information most it is fast most
Effective Military Early Warning facility.In process industry process units, need to guarantee between the process that is mutually related orderly to adjust, when upper
When trip process changes, downstream process needs quickly and effectively to obtain upstream process work information, makes corresponding adjusting in time,
Realize that the integral intelligent control to respond to and cooperate with each other across a great distance between upstream and downstream production technology, prevention downstream operating condition adjusting influence device not in time
Normal steady production.Real time execution change information of the vacuum furnace beacon flint control method according to furnace inlet amount relevant parameter, is based on
The dynamic and static idea of balance of system material and energy carries out Intelligent Dynamic orderly adjustment to vacuum furnace heat source fuel tolerance, favorably
In vacuum furnace smooth long term running.
Summary of the invention
It is an object of the invention to devise a kind of vacuum furnace beacon flint control method, the even running of vacuum furnace is to oil refiningization
The energy efficiency that tooling is set is of great significance, and before oil plant enters vacuum tower, needs to be heated to technique requirement by vacuum furnace
Temperature, and enter vacuum tower oil plant temperature it is steady whether be influence vacuum tower even running key factor therefore subtract
Press the efficiently and smoothly operated particularly significant of furnace.During the day-to-day operation of vacuum furnace, furnace entrance inlet amount and feeding temperature
Variation directly affects the even running of vacuum furnace.Therefore, it in conjunction with control theory, computer technology and chemical process principle, is based on
The dynamic and static equilibrium principle of system material and energy proposes a kind of vacuum furnace beacon flint control method, specific as follows.
The technical solution adopted by the present invention is a kind of vacuum furnace beacon flint control method, and vacuum furnace beacon flint control structure figure is as schemed
Shown in 1, the oil plant of vacuum furnace is divided to two boiler tubes to enter, and two boiler tubes are arranged in juxtaposition, and two boiler tubes respectively include flowmeter
Table and temperature measuring instrument.In figure, FI_A is first boiler tube feed rate instrument；TC_A is that first boiler tube oil plant temperature is surveyed
Instrument is measured, FI_B is second boiler tube feed rate instrument；TC_B is second boiler tube oil plant temperature measuring instrument；TC_DFO is
Heater outlet temperature controller；Beacon flint controls relevant calculation process and executes in vacuum furnace beacon flint controller, final output to combustion
Expect gas regulating valve.
According to conservation of energy principle, oil plant is warming up to heat such as following formula institute required for the temperature of outlet of still technique requirement
Show:
Q=cmA(TDFO-TINA)+cmB(TDFO-TINB) (1)
In formula, Q is the heat provided needed for oil plant heating；C is oil plant specific heat capacity；mAFor first boiler tube oil plant quality stream
Measure steady-state value；TINAFor first boiler tube entrance oil plant temperature steady-state value；mBFor second boiler tube oil plant mass flow steady-state value；
TINBFor second boiler tube entrance oil plant temperature steady-state value；TDFOFor heater outlet temperature steady-state value, i.e. setting value.Since vacuum furnace is each
Boiler tube entrance oil plant feed rate and temperature are dynamic changes, and therefore, the heat that fuel gas provides is also required to synchronous variation,
It can guarantee the steady of decompression heater outlet temperature, then the dynamic computational formula of heat is as follows:
Wherein, Δ Q is thermal change amount；ΔmAFor first boiler tube entrance oil plant mass-flow change amount；ΔmBIt is second
Root boiler tube entrance oil plant mass-flow change amount；ΔTINAFor first boiler tube entrance oil plant temperature variation；ΔTINBIt is second
Root boiler tube entrance oil plant temperature variation；The mass change and temperature variation of oil plant can be calculated by DCS real-time data collection
It arrives.Thermal change amount is as follows:
The variable quantity for obtaining heat Relative steady-state is as follows:
Dynamic cooperation adjusting is carried out to fuel tolerance according to the change information of heat, reduces external disturbance to the shadow of vacuum furnace
It rings, realizes the even running of vacuum furnace, it is as shown in Figure 2 that vacuum furnace beacon flint controls computing module.
In figure, TC_DFO.OP is the output for depressurizing heater outlet temperature controller, and BFC.OP is the control output of final beacon flint,
The control output operation of beacon flint is as follows.
Wherein, μ is beacon flint velocity coefficient, and μ chooses according to heating furnace practical operation situation.
Vacuum furnace beacon flint control method proposed by the present invention is directly implemented in DCS Distributed Control System, specific implementation step
It is rapid as follows:
S1, according to the actual conditions of vacuum furnace upstream and downstream technique unit, determine the related ginseng for influencing vacuum furnace even running
Number, vacuum furnace charging is two boiler tubes, and the parameter of two boiler tubes is both needed to consider；
S2, according to vacuum furnace beacon flint control principle, vacuum furnace beacon flint controller mould is developed in DCS Distributed Control System
Block, and the lower adjustment examination in DCS Distributed Control System；
S3, in debugging process, it is appropriate to choose beacon flint velocity coefficient μ according to vacuum furnace practical operation situation so that decompression
Furnace operational effect is steady.
Vacuum furnace beacon flint control method according to the present invention is compared with traditional control method to be had the advantages that
1, in conjunction with the principle of ancient times beacon flint transmitting information, a kind of completely new vacuum furnace control method, referred to as vacuum furnace are proposed
Beacon flint control method, this method can effectively reduce furnace outlet temperature and fuel tolerance caused by vacuum furnace charging Parameters variation
Fluctuation, can reduce plant energy consumption.
2, sound state idea of balance of the vacuum furnace beacon flint control method based on total system material and energy, from overall process entirety
The angle to run smoothly is set out, the dynamic relationship between comprehensive vacuum furnace upstream and downstream each unit, when upstream units operating condition changes
When, it quickly and effectively obtains upstream units work information and implements the control of beacon flint in time, be conducive to lifting device operation stability, mention
The operating efficiency of high device.
Detailed description of the invention
Fig. 1 vacuum furnace beacon flint control structure figure
Fig. 2 vacuum furnace beacon flint controls computing module structure chart
Vacuum furnace relevant parameter operation curve before the control of Fig. 3 beacon flint is implemented
Vacuum furnace relevant parameter operation curve after the control of Fig. 4 beacon flint is implemented
Specific embodiment
For new method proposed by the invention, it is explained below with reference to the example of an industrial application.
Certain hydrogenation oil refining device, raw material enter separative unit and carry out Atmospheric vacuum separation, oil plant enters after pretreatment
Before vacuum tower, it need to be carried out to be heated to technique requirement temperature, vacuum furnace schematic diagram is as shown in Figure 1, the charging point of furnace entrance
Not She You flow measurement instrument FI_A, FI_B and temperature measuring instrument TI_A, TI_B, the change of real-time measurement vacuum furnace entrance oil plant
Change situation, heater outlet temperature TC_DFO passes through fuel gas valve regulation.By the influence of fluctuations of vacuum furnace upstream, two furnaces of vacuum furnace entrance
Pipe oil plant flow and temperature also can frequent fluctuation, and then influence decompression heater outlet temperature, cause the fluctuation of fuel tolerance, simultaneously
Also the normal operation of reduced pressure downstream tower is influenced whether.It controls, reduces for this purpose, implementing beacon flint proposed by the invention to the vacuum furnace
Influence of the vacuum furnace entrance oil plant Parameters variation to vacuum furnace.
Vacuum furnace entrance oil plant temperature TINAAnd TINBSteady-state value is 235 DEG C, depressurizes heater outlet temperature TDFOSteady-state value is
275℃；Inlet mass flow mAAnd mBSteady-state value is 9t/h, beacon flint velocity coefficient μ value 0.74, entrance oil plant mass flow
Variation delta mA、ΔmBAnd temperature variation Δ TINA、ΔTINBIt is acquired in real time by control system.It is acquired in real time according to control system
Data are implemented on vacuum furnace according to beacon flint control method set forth in the present invention, are embodied in DCS Distributed Control System
Programming is realized, it is as shown in Figure 3 and Figure 4 to implement front and back correlated variables operation curve.
By Fig. 3, Fig. 4 as it can be seen that depressurizing heater outlet temperature and fuel tolerance operational effect after implementing the control of beacon flint to vacuum furnace
Before being substantially better than implementation.
Claims (2)
1. a kind of vacuum furnace beacon flint control method, it is characterised in that: the oil plant of vacuum furnace is divided to two boiler tubes to enter, and two boiler tubes are simultaneously
Column are arranged, include flow measurement instrument and temperature measuring instrument on two boiler tubes；FI_A is first boiler tube feed rate instrument
Table；TC_A is first boiler tube oil plant temperature measuring instrument, and FI_B is second boiler tube feed rate instrument；TC_B is second
Boiler tube oil plant temperature measuring instrument；TC_DFO is heater outlet temperature controller；Beacon flint controls relevant calculation process in vacuum furnace
It is executed in beacon flint controller, final output to fuel gas regulating valve；
According to conservation of energy principle, oil plant is warming up to heat required for the temperature of outlet of still technique requirement and is shown below:
Q=cmA(TDFO-TINA)+cmB(TDFO-TINB) (1)
In formula, Q is the heat provided needed for oil plant heating；C is oil plant specific heat capacity；mAIt is steady for first boiler tube oil plant mass flow
State value；TINAFor first boiler tube entrance oil plant temperature steady-state value；mBFor second boiler tube oil plant mass flow steady-state value；TINBFor
Second boiler tube entrance oil plant temperature steady-state value；TDFOFor heater outlet temperature steady-state value, i.e. setting value；Due to each boiler tube of vacuum furnace
Entrance oil plant feed rate and temperature are dynamic changes, and therefore, the heat that fuel gas provides is also required to synchronous variation, Cai Nengbao
Card depressurizes the steady of heater outlet temperature, then the dynamic computational formula of heat is as follows:
Wherein, Δ Q is thermal change amount；ΔmAFor first boiler tube entrance oil plant mass-flow change amount；ΔmBFor second furnace
Tube inlet oil plant mass-flow change amount；ΔTINAFor first boiler tube entrance oil plant temperature variation；ΔTINBFor second furnace
Tube inlet oil plant temperature variation；The mass change and temperature variation of oil plant can be calculated by DCS real-time data collection；Heat
It is as follows to measure variable quantity:
The variable quantity for obtaining heat Relative steady-state is as follows:
Dynamic cooperation adjusting is carried out to fuel tolerance according to the change information of heat, reduces influence of the external disturbance to vacuum furnace,
Realize the even running of vacuum furnace；
TC_DFO.OP is the output for depressurizing heater outlet temperature controller, and BFC.OP is the control output of final beacon flint, and the control of beacon flint is defeated
Operation is as follows out；
Wherein, μ is beacon flint velocity coefficient, and μ chooses according to heating furnace practical operation situation.
2. a kind of vacuum furnace beacon flint control method according to claim 1, it is characterised in that: vacuum furnace beacon flint control method
Directly implement in DCS Distributed Control System, specific implementation step is as follows:
S1, according to the actual conditions of vacuum furnace upstream and downstream technique unit, determine the relevant parameter for influencing vacuum furnace even running, subtract
Pressing furnace charging is two boiler tubes, and the parameter of two boiler tubes is both needed to consider；
S2, according to vacuum furnace beacon flint control principle, vacuum furnace beacon flint controller module is developed in DCS Distributed Control System, and
The lower adjustment examination in DCS Distributed Control System；
S3, in debugging process, it is appropriate to choose beacon flint velocity coefficient μ according to vacuum furnace practical operation situation so that vacuum furnace is transported
Row effect is steady.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137995.4A CN108375310B (en) | 2018-02-10 | 2018-02-10 | A kind of vacuum furnace beacon flint control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137995.4A CN108375310B (en) | 2018-02-10 | 2018-02-10 | A kind of vacuum furnace beacon flint control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375310A CN108375310A (en) | 2018-08-07 |
| CN108375310B true CN108375310B (en) | 2019-07-12 |
Family
ID=63017684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810137995.4A Active CN108375310B (en) | 2018-02-10 | 2018-02-10 | A kind of vacuum furnace beacon flint control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108375310B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795396B (en) * | 2020-12-22 | 2023-03-28 | 北京世纪隆博科技有限责任公司 | Decompression furnace repeating crossbow control system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252784A (en) * | 2011-04-20 | 2011-11-23 | 上海交通大学 | System for monitoring boiler efficiency of thermal power station on line based on identification of calorific capacity of fire coal |
| CN102298321A (en) * | 2011-06-16 | 2011-12-28 | 西安交通大学 | Energy conservation optimizing method of heat-engine plant ball mill pulverizing system based on sequential pattern mining |
| CN102865752A (en) * | 2012-08-15 | 2013-01-09 | 北京世纪隆博科技有限责任公司 | Branch temperature balancing and load controlling method for heating furnace |
| CN105807820A (en) * | 2016-02-03 | 2016-07-27 | 北京世纪隆博科技有限责任公司 | Temperature and flow decoupling control structure and method |
| CN106040676A (en) * | 2016-05-19 | 2016-10-26 | 北京世纪隆博科技有限责任公司 | Automatic washing method for rectifying tower pipeline |
-
2018
- 2018-02-10 CN CN201810137995.4A patent/CN108375310B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252784A (en) * | 2011-04-20 | 2011-11-23 | 上海交通大学 | System for monitoring boiler efficiency of thermal power station on line based on identification of calorific capacity of fire coal |
| CN102298321A (en) * | 2011-06-16 | 2011-12-28 | 西安交通大学 | Energy conservation optimizing method of heat-engine plant ball mill pulverizing system based on sequential pattern mining |
| CN102865752A (en) * | 2012-08-15 | 2013-01-09 | 北京世纪隆博科技有限责任公司 | Branch temperature balancing and load controlling method for heating furnace |
| CN105807820A (en) * | 2016-02-03 | 2016-07-27 | 北京世纪隆博科技有限责任公司 | Temperature and flow decoupling control structure and method |
| CN106040676A (en) * | 2016-05-19 | 2016-10-26 | 北京世纪隆博科技有限责任公司 | Automatic washing method for rectifying tower pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108375310A (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105627356B (en) | A kind of metallurgical gas fired-boiler combustion control system | |
| CN107096252B (en) | The method that the top of the distillation column cooling capacity automatically controls | |
| CN104101105B (en) | The composite control method of a kind of heating crude oil furnace temperature and device thereof | |
| CN104850151A (en) | Temperature control method for airflow type cut tobacco dryer combustion chamber | |
| CN103054152A (en) | Tobacco redryer moisture control method based on forecast Product Improve (PI) algorithm control system | |
| CN106125790B (en) | Die face and the drop stamping temperature control system of plate Multi-Point Closed-Loop observing and controlling | |
| CN103576711B (en) | Based on the chemical reactor temperature-controlled process that quantitative one-parameter PID controls | |
| CN105865215B (en) | Cement kiln temperature Multi-parameter control system | |
| CN104785543A (en) | Hot rolled strip convexity feedback control method based on moving average filter | |
| CN110075559A (en) | A kind of control method and system of the adaptive steam pressure fluctuation of rectifying column | |
| CN101286042A (en) | Mixed gas thermal value control system and method | |
| CN104279882A (en) | Method for controlling temperature of outlet of heating furnace through participation of furnace entering flow | |
| CN108375310B (en) | A kind of vacuum furnace beacon flint control method | |
| CN102277468B (en) | Real-time forecasting method of LF refining furnace molten steel temperature | |
| CN107608415A (en) | A kind of electrical heating pure steam generator based on fuzzy-adaptation PID control | |
| CN103471393B (en) | Blast furnace gas double preheating and ignition furnace temperature control method and device | |
| CN102455718A (en) | Temperature control system in catalyst production device, temperature control method and application of temperature control system | |
| CN108398017B (en) | A kind of reactor heating furnace beacon flint control method | |
| CN102796028B (en) | A kind of control device and method improving acrylonitrile production stability | |
| CN203028084U (en) | Tobacco re-drying system | |
| CN208688301U (en) | A kind of carbon black-yielding feedstock oil secondary preheater | |
| CN207046891U (en) | A kind of ammonia still process course prediction control system | |
| CN108187362B (en) | A kind of rectifying column beacon flint control method | |
| CN107831656A (en) | A kind of fired power generating unit coordinated control system energy saving optimizing technology | |
| CN108303890B (en) | A kind of pyrolysis furnace beacon flint control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |