CN108187362A - A kind of rectifying column beacon flint control method - Google Patents
A kind of rectifying column beacon flint control method Download PDFInfo
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- CN108187362A CN108187362A CN201810137976.1A CN201810137976A CN108187362A CN 108187362 A CN108187362 A CN 108187362A CN 201810137976 A CN201810137976 A CN 201810137976A CN 108187362 A CN108187362 A CN 108187362A
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- rectifying column
- beacon flint
- oil plant
- beacon
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0426—Programming the control sequence
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a kind of rectifying column beacon flint control method, FI_IN is rectifying column feed rate measuring instrumentss；TC_IN is tower entrance oil plant temperature measuring instrument；TC_TB is rectifying column stripping section column plate temperature controller；Beacon flint controls relevant calculation process to be performed in beacon flint controller, final output to steam control valve.Sound state idea of balance of the rectifying column beacon flint control method based on total system material and energy, from the stable angle of overall process overall operation, dynamic relationship between each parameter of comprehensive rectifying column unit upstream and downstream, it quickly and effectively obtains upstream units work information and implements the control of beacon flint in time, realize the integral intelligent control to respond to and cooperate with each other across a great distance between rectifying column unit and down stream process units.
Description
Technical field
The invention belongs to process industry production technical field, it is related to a kind of rectifying column beacon flint control method, this method can be with
Controlling plan design applied to rectifying column in process industry process units.
Background technology
In oil-refining chemical production, rectifying column plays very important effect, oil plant each weight component in rectifying column
It is detached, and then can obtain the target product of different component, therefore, can the quiet run that ensure rectifying column be lifting device
The key of production level.In the day-to-day operation of rectifying column, the heat source of entire Tower System is mainly provided by tower reactor steam, and stripping section is normal
The control program of rule for stripping section column plate temperature by tower reactor automatic steam control, the column plate temperature of stripping section is rectifying column normal operation
Important indicator.Stripping section column plate temperature suffers from the influence of rectifying column feed rate and feeding temperature, so as to influence tower
Kettle quantity of steam it is steady, be unfavorable for the quiet run of rectifying tower system.
For this purpose, the present invention proposes a kind of control method of brand new ideas, referred to as rectifying column beacon flint control method.Beacon flint controls
Thought transmits the most fast most effective Military Early Warning facility of information from this ancient times of China's beacon tower.In process industry process units
In, the inter process that is mutually related needs to ensure orderly to adjust, and when upstream process changes, downstream process needs fast and effective
Upstream process work information is obtained, makes corresponding adjusting in time, realizes the integration to respond to and cooperate with each other across a great distance between upstream and downstream production technology
Intelligent control, the adjusting of prevention downstream operating mode influence the normal steady production of device not in time.Rectifying column beacon flint control method according to
According to the real time execution change information of stove inlet amount relevant parameter, the dynamic and static idea of balance based on system material and energy, to essence
It evaporates tower heat source stream amount and carries out Intelligent Dynamic orderly adjustment, be conducive to rectifying column smooth long term running.
Invention content
It is an object of the invention to devise a kind of rectifying column beacon flint control method, the even running of rectifying column is to oil refiningization
Work process production efficiency and product quality have great influence, and for device before output final products, being required for will by rectifying column
Each component is detached in oil plant, and the heat source of rectifying tower system is mainly provided by tower reactor steam, by adjusting steam flow control
Stripping section column plate temperature, to reach the steady of entire rectifying tower system heat, therefore, rectifying column it is efficiently and smoothly operated very heavy
It will.During the day-to-day operation of rectifying column, the variation of tower entrance inlet amount and feeding temperature directly affects the steady of rectifying column
Operation.Therefore, the present invention combines control theory, computer technology and chemical process principle, based on system material and energy it is dynamic,
Static balancing principle proposes a kind of rectifying column beacon flint control method, specific as follows.
The technical solution adopted by the present invention is a kind of rectifying column beacon flint control method, and rectifying column beacon flint control structure figure is as schemed
Shown in 1, in figure, FI_IN is rectifying column feed rate measuring instrumentss；TC_IN is tower entrance oil plant temperature measuring instrument；TC_TB
For rectifying column stripping section column plate temperature controller；Beacon flint controls relevant calculation process to be performed in beacon flint controller, final defeated
Go out to steam control valve.
According to rectifying tower system principle of energy balance, oil plant is warming up to stripping section column plate temperature measuring point from the temperature into rectifying column
The required heat of temperature provided by tower bottom steam, oil plant heating needed for heat expression formula it is as follows.
Q=cm (TTB-TIN) (1)
In formula, Q is the heat provided needed for oil plant heating；C is oil plant specific heat capacity；M is oil plant mass flow steady-state value；TTB
For rectifying column outlet temperature steady-state value, i.e. setting value；TINFor rectifying column inlet oil plant temperature steady-state value.Due to rectifying column inlet oil
Expect that feed rate and temperature are dynamic changes, therefore, the heat that steam provides is also required to synchronous variation, just can guarantee rectifying column
Outlet temperature it is steady, then the dynamic computational formula of heat is as follows：
Wherein, Δ Q is thermal change amount；Δ m is entrance oil plant mass-flow change amount, i.e. changes in flow rate amount；ΔTINFor
Entrance oil plant temperature variation, the mass change and temperature variation of oil plant are calculated by DCS real-time data collections.Heat becomes
Change amount Δ Q is as follows：
Δ Q=c Δ m (TTB-TIN)-cmΔTIN-cΔmΔTIN (3)
The variable quantity that heat Relative steady-state can be obtained is as follows：
Dynamic cooperation adjusting is carried out to quantity of steam according to the change information of heat, reduces shadow of the external disturbance to rectifying column
It rings, realizes the even running of rectifying column, rectifying column beacon flint control computing module is as shown in Figure 2.
In figure, TC_TB.OP is the output of rectifying column outlet temperature controller, and BFC.OP is exported for the control of final beacon flint, beacon
Flint control output operation is as follows.
Wherein, μ is beacon flint velocity coefficient, is chosen according to rectifying column practical operation situation.
Rectifying column beacon flint control method proposed by the present invention is directly implemented in device DCS Distributed Control Systems, specific real
It is as follows to apply step：
S1, the actual conditions according to rectifying column upstream and downstream technique unit determine to influence the related ginseng of rectifying column even running
Number；
S2, according to rectifying column beacon flint control principle, develop beacon flint controller module in DCS Distributed Control Systems, and
Lower adjustment examination in control system；
S3, in debugging process, it is appropriate to choose beacon flint velocity coefficient μ according to rectifying column practical operation situation, make rectifying column
Operational effect is steady.
Rectifying column beacon flint control method according to the present invention is compared with traditional control method to be had the following advantages that：
1st, for rectifying column day-to-day operation the problem of, transmits the principle of information with reference to ancient times beacon flint, proposes a kind of
Completely new rectifying column control method, referred to as rectifying column beacon flint control method, this method can effectively reduce rectifying column charging parameter and become
Tower System caused by change fluctuates, the operation stability of lifting device.
2nd, sound state idea of balance of the rectifying column beacon flint control method based on total system material and energy, from overall process entirety
The angle to operate steadily is set out, and it is single quickly and effectively to obtain upstream for the dynamic relationship between each parameter of comprehensive rectifying column unit upstream and downstream
First work information simultaneously implements the control of beacon flint in time, realizes the integrated intelligence to respond to and cooperate with each other across a great distance between rectifying column unit and down stream process units
It can control.
Description of the drawings
Fig. 1 rectifying column beacon flint control structure figures.
Fig. 2 rectifying column beacons flint controls computing module structure chart.
Debutanizing tower relevant parameter operation curve before the control of Fig. 3 beacons flint is implemented.
Debutanizing tower relevant parameter operation curve after the control of Fig. 4 beacons flint is implemented.
Specific embodiment
For new method proposed by the invention, it is explained with reference to the example of a commercial Application.
Certain ethylene unit debutanizing tower is conventional rectifying column, and debutanizing tower act as the charging that upstream is come being separated into tower
Four component of carbon on top and the light dydrocarbon of tower reactor and light dydrocarbon more than heavy constituent, Tower System heat source are provided by superheated steam, and debutanizing tower shows
It is intended to as shown in Figure 1, tower charging is respectively equipped with flow measurement instrument FI_IN and temperature measuring instrument TI_IN, measurement in real time takes off fourth
The situation of change of alkane tower entrance oil plant, stripping section column plate temperature TC_TB pass through steam valve regulation.Shadow is fluctuated by debutanizing tower upstream
Ring, tower entrance oil plant flow and temperature also can frequent fluctuation, and then influence debutanizing tower stripping section column plate temperature, cause steam
The fluctuation of amount, while also influence whether the even running of entire debutanizing tower system.For this purpose, the present invention is implemented to the debutanizing tower
The beacon flint control proposed, reduces influence of the tower entrance oil plant Parameters variation to debutanizing tower system.
Debutanizing tower entrance oil plant temperature TINSteady-state value is 45 DEG C, stripping section column plate temperature TTBSteady-state value is 55 DEG C；Entrance
Mass flow m steady-state values are 36t/h, beacon flint velocity coefficient μ values 0.85, entrance oil plant mass-flow change amount Δ m and temperature
Variation delta TINIt is acquired in real time by control system.According to control system real-time data collection, according to beacon flint set forth in the present invention
Control method is implemented on rectifying column, is embodied in program in DCS Distributed Control Systems and realize, correlated variables is transported before and after implementation
Row curve is as shown in Figure 3 and Figure 4.
By Fig. 3, Fig. 4 as it can be seen that after debutanizing tower implementation beacon flint control, stripping section column plate temperature and steam flow operation are flat
It is surely compared with before implementing, improvement is apparent.
Claims (2)
1. a kind of rectifying column beacon flint control method, it is characterised in that：FI_IN is rectifying column feed rate measuring instrumentss；TC_IN is
Tower entrance oil plant temperature measuring instrument；TC_TB is rectifying column stripping section column plate temperature controller；Beacon flint is controlled at relevant operation
Reason performs in beacon flint controller, final output to steam control valve；
According to rectifying tower system principle of energy balance, oil plant is warming up to the temperature of stripping section column plate temperature measuring point from the temperature into rectifying column
It spends required heat to be provided by tower bottom steam, the heat expression formula needed for oil plant heating is as follows；
Q=cm (TTB-TIN) (1)
In formula, Q is the heat provided needed for oil plant heating；C is oil plant specific heat capacity；M is oil plant mass flow steady-state value；TTBFor essence
Evaporate tower outlet temperature steady-state value, i.e. setting value；TINFor rectifying column inlet oil plant temperature steady-state value；Due to rectifying column inlet oil plant into
Stream amount and temperature are dynamic changes, and therefore, the heat that steam provides is also required to synchronous variation, just can guarantee that rectifying column exports
Temperature it is steady, then the dynamic computational formula of heat is as follows：
Wherein, Δ Q is thermal change amount；Δ m is entrance oil plant mass-flow change amount, i.e. changes in flow rate amount；ΔTINFor entrance
Oil plant temperature variation, the mass change and temperature variation of oil plant are calculated by DCS real-time data collections；Thermal change amount
Δ Q is as follows：
Δ Q=c Δ m (TTB-TIN)-cmΔTIN-cΔmΔTIN (3)
The variable quantity that heat Relative steady-state can be obtained is as follows：
Dynamic cooperation adjusting is carried out to quantity of steam according to the change information of heat, reduces influence of the external disturbance to rectifying column, it is real
The even running of existing rectifying column；
TC_TB.OP is the output of rectifying column outlet temperature controller, and BFC.OP is the control output of final beacon flint, and the control of beacon flint is defeated
It is as follows to go out operation；
Wherein, μ is beacon flint velocity coefficient, is chosen according to rectifying column practical operation situation.
2. a kind of rectifying column beacon flint control method according to claim 1, it is characterised in that：Rectifying column beacon flint control method
Directly implement in device DCS Distributed Control Systems, specific implementation step is as follows：
S1, the actual conditions according to rectifying column upstream and downstream technique unit determine to influence the relevant parameter of rectifying column even running；
S2, according to rectifying column beacon flint control principle, beacon flint controller module is developed in DCS Distributed Control Systems, and controlling
Lower adjustment examination in system；
S3, in debugging process, it is appropriate to choose beacon flint velocity coefficient μ according to rectifying column practical operation situation, run rectifying column
Effect is steady.
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| CN201810137976.1A CN108187362B (en) | 2018-02-10 | 2018-02-10 | A kind of rectifying column beacon flint control method |
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| CN201810137976.1A CN108187362B (en) | 2018-02-10 | 2018-02-10 | A kind of rectifying column beacon flint control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721934A (en) * | 2018-08-16 | 2018-11-02 | 青海黄河上游水电开发有限责任公司新能源分公司 | The overall process autocontrol method and system of rectifying column |
| CN109336242A (en) * | 2018-11-16 | 2019-02-15 | 南京工业大学 | A kind of automatic control system of the combined purifying process of distillation residual liquid and technique waste water |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979054A (en) * | 2005-12-05 | 2007-06-13 | 保音股份有限公司 | Water heater quick constant-temperature control method and apparatus |
| CN101256418A (en) * | 2008-03-28 | 2008-09-03 | 清华大学 | Combination control method for exit temperature of heating furnace |
| CN102338471A (en) * | 2011-09-02 | 2012-02-01 | 中国石油天然气股份有限公司 | Optimization operation monitoring method of heating furnace |
| CN103851769A (en) * | 2012-12-08 | 2014-06-11 | 广东万家乐燃气具有限公司 | Pre-sensing heating method of water heating system and water heating system |
| CN104101105A (en) * | 2014-07-25 | 2014-10-15 | 南京富岛信息工程有限公司 | Method and device used for compound control of crude oil heater temperature |
| CN204051646U (en) * | 2014-06-23 | 2014-12-31 | 昆明焦化制气有限公司 | A kind of can the benzene hydrogenation system of flexible modulation heating-up temperature |
| CN104279882A (en) * | 2013-07-09 | 2015-01-14 | 王生友 | Method for controlling temperature of outlet of heating furnace through participation of furnace entering flow |
| KR101611089B1 (en) * | 2014-10-29 | 2016-04-08 | 린나이코리아 주식회사 | Hot water supply device |
| CN105865033A (en) * | 2015-01-19 | 2016-08-17 | 福建斯狄渢电开水器有限公司 | Water temperature control method of water boiler |
| CN106197052A (en) * | 2016-07-12 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of method of controlling security for chemical industry heating furnace |
-
2018
- 2018-02-10 CN CN201810137976.1A patent/CN108187362B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979054A (en) * | 2005-12-05 | 2007-06-13 | 保音股份有限公司 | Water heater quick constant-temperature control method and apparatus |
| CN101256418A (en) * | 2008-03-28 | 2008-09-03 | 清华大学 | Combination control method for exit temperature of heating furnace |
| CN102338471A (en) * | 2011-09-02 | 2012-02-01 | 中国石油天然气股份有限公司 | Optimization operation monitoring method of heating furnace |
| CN103851769A (en) * | 2012-12-08 | 2014-06-11 | 广东万家乐燃气具有限公司 | Pre-sensing heating method of water heating system and water heating system |
| CN104279882A (en) * | 2013-07-09 | 2015-01-14 | 王生友 | Method for controlling temperature of outlet of heating furnace through participation of furnace entering flow |
| CN204051646U (en) * | 2014-06-23 | 2014-12-31 | 昆明焦化制气有限公司 | A kind of can the benzene hydrogenation system of flexible modulation heating-up temperature |
| CN104101105A (en) * | 2014-07-25 | 2014-10-15 | 南京富岛信息工程有限公司 | Method and device used for compound control of crude oil heater temperature |
| KR101611089B1 (en) * | 2014-10-29 | 2016-04-08 | 린나이코리아 주식회사 | Hot water supply device |
| CN105865033A (en) * | 2015-01-19 | 2016-08-17 | 福建斯狄渢电开水器有限公司 | Water temperature control method of water boiler |
| CN106197052A (en) * | 2016-07-12 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of method of controlling security for chemical industry heating furnace |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721934A (en) * | 2018-08-16 | 2018-11-02 | 青海黄河上游水电开发有限责任公司新能源分公司 | The overall process autocontrol method and system of rectifying column |
| CN108721934B (en) * | 2018-08-16 | 2024-04-12 | 青海黄河上游水电开发有限责任公司新能源分公司 | Full-process automatic control method and system for rectifying tower |
| CN109336242A (en) * | 2018-11-16 | 2019-02-15 | 南京工业大学 | A kind of automatic control system of the combined purifying process of distillation residual liquid and technique waste water |
| CN109336242B (en) * | 2018-11-16 | 2021-04-20 | 南京工业大学 | Automatic control system for combined purification process of rectification residual liquid and process wastewater |
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| CN108187362B (en) | 2019-10-18 |
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