CN104778811B - Alarm method when liquid phase reactor drives to ventilate - Google Patents
Alarm method when liquid phase reactor drives to ventilate Download PDFInfo
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- CN104778811B CN104778811B CN201510186020.7A CN201510186020A CN104778811B CN 104778811 B CN104778811 B CN 104778811B CN 201510186020 A CN201510186020 A CN 201510186020A CN 104778811 B CN104778811 B CN 104778811B
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Abstract
, easily there is maloperation, the problem of safety coefficient is low when mainly solving to drive in the prior art in a kind of alarm method when driving to ventilate the present invention relates to liquid phase reactor.A kind of alarm method when the present invention drives to ventilate by using liquid phase reactor, comprises the following steps：(1) activation condition of reactor key process parameter, end condition, process alarm boundary and condition confirm alarming value when determining to drive to ventilate；(2) activation condition of reactor technological parameter, end condition, process alarm boundary and condition are confirmed into the allocation list in alarming value input server；(3) the DCS real time datas of reactor technological parameter are inputted to the real time data table of server；(4) it is compared in inference machine, significant comparative result is inputted into result table；(5) data are read in customer side from the result table of server, according to comparative result, and the technical scheme alarmed preferably solves above mentioned problem, in alarm when driving to ventilate available for liquid phase reactor.
Description
Technical field
A kind of alarm method when driving to ventilate the present invention relates to liquid phase reactor.
Background technology
Chemical plant installations is increasingly towards maximization development, and the coupled relation of each link of device is more and more closer, and startup procedure is also got over
Come more complicated, thus bring increasing challenge to security when driving.
There is such class reactor in chemical plant installations：Liquid phase oxidation reaction occurs in reactor, gaseous oxidation is situated between
Matter is air or oxygen-enriched air, and liquid-phase reduction medium is inflammable and explosive organic matter.In this reactor, oxygen uptake energy during driving
Power is possible to not enough, if controlled during blowing air it is improper, it would be possible to it is exceeded tail oxygen content occur, causes to fire danger.
At home, this liquid phase reactor introduces less, the big portion that automatic control system is ventilated automatically in driving
Separating device driving aeration is completed by exper ienced workman, steady and whether safe heavy dependence workman during ventilation
Experience.
The collecting and distributing control system (DCS) of device has warning system, temperature of reaction kettle when can be to normal operation, pressure and
Whether the parameters such as tail oxygen content are alarmed extremely.But various process parameters are in the process of change during due to driving, therefore,
DCS warning system can not come into operation, even if exception occurs in technological parameter, cannot get effective alarm.
CN 201320071869.6 describes a kind of analyzer pretreatment unit for cyclohexane oxidation tail oxygenation measurement.
Patent " p xylene oxidation reactor method for detecting tail oxygen concentration fault " discloses p xylene oxidation reactor operating condition
Fault detection method.Alarm method when at present, without reference to driving blowing air, also drives to lead to without reference to computer assisted
Gas alarm method, it is impossible to solve the problems, such as the maloperation of driving venting process.
Develop alarm method when a kind of liquid phase reactor drives to ventilate, maloperation during to preventing that workman from driving, it is to avoid
Accident has great importance.
The content of the invention
The technical problems to be solved by the invention are that maloperation, safety coefficient easily occur when driving in the prior art low
A kind of alarm method when problem drives to ventilate there is provided new liquid phase reactor.This method is driven for liquid phase reactor
In alarm during ventilation, there is to be not easy to occur when driving maloperation, safety coefficient high.
To solve the above problems, the technical solution adopted by the present invention is as follows：When a kind of liquid phase reactor drives to ventilate
Alarm method, comprises the following steps：(1) determine to drive ventilation when the activation condition of reactor key process parameter, end condition,
Process alarm boundary and condition confirm alarming value；(2) by the activation condition, end condition, process alarm of reactor technological parameter
Boundary and condition confirm the allocation list that alarming value is inputted in server by configuration tool；(3) by the DCS of reactor technological parameter
Real time data inputs the real time data table of server by metadata acquisition tool；(4) by reactor technological parameter in inference machine
Real time data and activation condition, end condition, process alarm boundary and condition confirm that alarming value is compared respectively, will be intentional
The comparative result of justice is inputted into result table；(5) data are read in customer side from the result table of server, according to comparative result,
Alarmed, automatic spring exceeds consequence, treatment advice during alarm, two kinds of letters of acoustical signal or acousto-optic occur for safe sound and light alarm
Number.
In above-mentioned technical proposal, it is preferable that the method to set up of condition is during the driving ventilation：
A) set a less charge flow value as activation condition, Indicator Reaction kettle starts air inlet, set liquid level it is low,
Temperature is low, stir current alarm free, and whether other conditions possess when pointing out to start air inlet, sets the high alarming value O of tail oxygen content2%
In the range of 5~18%, pressure alarm bound sets end condition, can also be without terminating；
B) it is 5~10% to set tail oxygen content activation condition, and instruction needs to pay close attention to tail oxygen content, sets 1
Process alarm of the tail oxygen content ascensional range more than 0.5~3% in minute, setting end condition is tail oxygen content 3~8%；
C) set 1 minute in tail oxygen content fall more than 0.5~3%, and tail oxygen content be less than 5~10% when be sharp
Condition living.It is 5~10% to set the oxygen content process alarm upper limit, gradually lowers activation condition and oxygen content process alarm value, directly
It is identical with Normal Alarm value to process alarm value.
In above-mentioned technical proposal, it is preferable that the configuration tool excessively will be selected with C#, VB, VC++, Java programming language
Good technological parameter and its activation condition, end condition, process alarm boundary and condition confirm alarming value typing to server
Allocation list.
In above-mentioned technical proposal, it is preferable that the metadata acquisition tool be by C#, VB, VC++, Java programming language from
OPC or real-time data base collection technology parameter real time data, and it is stored in the real-time data base of server.
In above-mentioned technical proposal, it is preferable that comparing substantially in the inference machine includes being more than, greatly with logic judgment instrument
In or be equal to, be less than, be less than or equal to, be equal to or, with, it is non-.
In above-mentioned technical proposal, it is preferable that the charge flow rate, tail oxygen flow, temperature, pressure.
This patent alarm module automatic start after activation condition is reached, it is to avoid DCS alarms are spread unchecked or alarmed during driving
The shortcoming that can not be come into operation, and process alarm and condition confirmation two kinds of type of alarms of alarm are provided, can be to driving venting process
Technological parameter is monitored, and the safety condition of operation is confirmed, prevents driving venting process misoperation fault from occurring.At present
Alarm in DCS system does not provide processing method, highly dependent upon the field experience and Knowledge Capability of workman.This patent is built-in by special
The alarm treatment method that team of family formulates jointly, automatic spring prompting frame after alarm instructs workman to carry out alarm treatment, prevents report
Alert disposal mistake or not in time, achieves preferable technique effect.
Brief description of the drawings
Fig. 1 is the configuration diagram of the method for the invention.
Below by embodiment, the invention will be further elaborated, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
Alarm method when driving to ventilate the present invention relates to a kind of liquid phase reactor, as shown in figure 1, including following step
Suddenly：(1) activation condition, end condition, process alarm boundary and the condition of reactor key process parameter when determining to drive to ventilate
Confirm alarming value；(2) activation condition of reactor technological parameter, end condition, process alarm boundary and condition are confirmed to alarm
It is worth the allocation list inputted by configuration tool in server；(3) the DCS real time datas of reactor technological parameter are adopted by data
Collection instrument inputs the real time data table of server；(4) by the real time data of reactor technological parameter and activation bar in inference machine
Part, end condition, process alarm boundary and condition confirm that alarming value is compared respectively, by significant comparative result input to
As a result in table；(5) data are read in customer side from the result table of server, according to comparative result, are alarmed, automatic during alarm
Ejection exceeds consequence, treatment advice, and two kinds of signals of acoustical signal or acousto-optic occur for safe sound and light alarm.
The following detailed description of the implementation of the present invention.
(1) activation condition, end condition, process alarm boundary and condition confirm when liquid phase oxidizing reactor drives to ventilate
The method to set up of alarming value
The equipment and affiliated facility being related to during driving ventilation include gas handling system, reactor and tail oxygen system.
Gas handling system includes inlet air flow gauge, air inlet adjustment valve etc..
Reactor includes thermometer, pressure gauge and stirring etc..
Tail oxygen system includes tail oxygen conten analyser etc..
In chemical plant installations startup procedure, technological parameter often undergoes a change procedure.In order to guarantee that parameter is entered
Row alarm is, it is necessary to which the activation condition of an alarm, after parameter meets this activation condition, activation is alarmed.For parameter setting one
, it is necessary to set the bound (process alarm boundary) of parameter under this state of activation after activation condition, the bound may with it is normal
Bound is identical during operation, it is also possible to different.In addition, after parameter reaches activation condition, showing that workman is carried out to device
Certain operation, such as turn on pump, switch valve, logical steam, in order to carry out safety condition confirmation, it is necessary to there is related parameter to set for other
An alarming value (condition confirmation alarming value) is put, when other have related parameter to be alarmed, shows that operation has problem.It is same
The possible more than one of the activation condition of parameter, a set of end condition of each activation condition correspondence, process alarm boundary and condition are true
Recognize alarming value.End condition can be not present, i.e., without terminating after activation of alarm.
The method to set up of various conditions is when driving to ventilate：
A) set a less charge flow value as activation condition, Indicator Reaction kettle starts air inlet.Set liquid level it is low,
Temperature is low, stir current alarm free (condition confirms alarm), and whether other conditions possess when pointing out to start air inlet.Tail oxygen is set to contain
Measure high alarming value O2% is in the range of 5~18%, pressure alarm bound (process alarm boundary).End condition is set, also may be used
With without terminating.
B) it is 5~10% to set tail oxygen content activation condition, and instruction needs to pay close attention to tail oxygen content.Set 1
Process alarm of the tail oxygen content ascensional range more than 0.5~3% in minute.Setting end condition is tail oxygen content 3~8%.
C) set 1 minute in tail oxygen content fall more than 0.5~3%, and tail oxygen content be less than 5~10% when be sharp
Condition living.It is 5~10% to set the oxygen content process alarm upper limit.Activation condition and oxygen content process alarm value are gradually lowered, directly
It is identical with Normal Alarm value to process alarm value.
(2) configuration tool
With programming languages such as C#, VB, VC++, Java by the technological parameter chosen and its activation condition, end condition, mistake
Journey alarm threshold and condition confirm alarming value typing to the allocation list of server.
(3) real-time data acquisition
Counted by programming languages such as C#, VB, VC++, Java from OPC (OLE for Process Control) or in real time
According to the real time data of storehouse (data come from OPC) collection technology parameter, and it is stored in the real-time data base of server.
(4) inference machine
In inference machine it is main include being more than, being more than or equal to, being less than, being less than or equal to, being equal to or, with, the basic ratio such as non-
Compared with logic judgment instrument.
When real time data meets activation condition (being unsatisfactory for end condition), and process alarm boundary is met, labeled as process
Alarm.
When real time data meets activation condition (being unsatisfactory for end condition), and meet condition and confirm alarming value, labeled as bar
Part confirms alarm.
When real time data meets activation condition (being unsatisfactory for end condition), and meet process alarm boundary or condition confirms report
Alert value, while confirming alarm labeled as process alarm and condition.
When real time data meets activation condition (being unsatisfactory for end condition), other alert if are unsatisfactory for, without any
Action.
When real time data is unsatisfactory for activation condition, regardless of whether other alert if are met, without any action.
The result of reasoning is inputted to result table.
(5) customer side can share a computer with server, can also be used separately.Customer side is from the result table of server
Access evidence.When producing new alarm, automatic spring alarm frame, including beyond consequence, treatment advice etc..Pop-out is aobvious
Show and Projection Display is shown or carried out on device.
Safe sound and light alarm, according to the difference of alarm, occurs two kinds of signals of acoustical signal or acousto-optic.
When abnormality is attributed to normal condition, alarm indication is eliminated automatically.
When producing multiple abnormalities simultaneously, prompting frame ejection Posterior circle switching display.
Alarm indication can be eliminated by manual confirmation.
Claims (5)
- A kind of alarm method 1. liquid phase reactor is driven during ventilation, comprises the following steps：(1) determine to drive to react during ventilation Activation condition, end condition, process alarm boundary and the condition of kettle key process parameter confirm alarming value；(2) by reactor work Activation condition, end condition, process alarm boundary and the condition of skill parameter confirm that alarming value inputs server by configuration tool In allocation list；(3) the DCS real time datas of reactor technological parameter are inputted to the real-time number of server by metadata acquisition tool According to table；(4) by the real time data of reactor technological parameter and activation condition, end condition, process alarm boundary in inference machine And condition confirms that alarming value is compared respectively, and significant comparative result is inputted into result table；(5) customer side is from service Data are read in the result table of device, according to comparative result, are alarmed, automatic spring exceeds consequence, treatment advice, peace during alarm Two kinds of signals of acoustical signal or acousto-optic occur for full sound and light alarm；The method to set up of condition is during the driving ventilation：A) set a less charge flow value as activation condition, Indicator Reaction kettle starts air inlet, setting liquid level is low, temperature Low, stir current alarm free, whether other conditions possess when pointing out to start air inlet, set the high alarming value O of tail oxygen content2% is 5 In the range of~18%, pressure alarm bound sets end condition, can also be without terminating；B) it is 5~10% to set tail oxygen content activation condition, and instruction needs to pay close attention to tail oxygen content, is set 1 minute Interior process alarm of the tail oxygen content ascensional range more than 0.5~3%；C) set 1 minute in tail oxygen content fall more than 0.5~3%, and tail oxygen content be less than 5~10% when for activation bar Part, it is 5~10% to set the tail oxygen content process alarm upper limit, gradually lowers activation condition and tail oxygen content process alarm value, directly It is identical with Normal Alarm value to process alarm value.
- Alarm method when 2. liquid phase reactor drives to ventilate according to claim 1, it is characterised in that described cross configures Instrument is by the technological parameter chosen and its activation condition, end condition, process report with C#, VB, VC++, Java programming language Police circles limit and condition confirms alarming value typing to the allocation list of server.
- Alarm method when 3. liquid phase reactor drives to ventilate according to claim 1, it is characterised in that the data are adopted Collection instrument be by C#, VB, VC++, Java programming language from OPC or the real time data of real-time data base collection technology parameter, And it is stored in the real-time data base of server.
- Alarm method when 4. liquid phase reactor drives to ventilate according to claim 1, it is characterised in that the inference machine In compare substantially including be more than, be more than or equal to, be less than, be less than or equal to, be equal to or, with, it is non-.
- Alarm method when 5. liquid phase reactor drives to ventilate according to claim 1, it is characterised in that the crucial work Skill parameter includes charge flow rate, tail oxygen flow, temperature, pressure.
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| CN106932007A (en) * | 2017-04-21 | 2017-07-07 | 海正化工南通股份有限公司 | A kind of reactor gas displacement checking system |
| CN111939842A (en) * | 2020-09-05 | 2020-11-17 | 西南石油大学 | Control high temperature high pressure batch autoclave air-breather |
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| GB2010706B (en) * | 1977-04-22 | 1982-01-20 | Marl Associates Ltd | Centrifuges |
| CN2404144Y (en) * | 1998-12-25 | 2000-11-01 | 万义峰 | Liquid level automatic and hand-operated controlling and alarming device |
| PL2523804T3 (en) * | 2010-01-15 | 2015-10-30 | Vaelinge Innovation Ab | Bright colored surface layer |
| CN101968457B (en) * | 2010-09-14 | 2013-06-26 | 中国石油化工股份有限公司 | Explosion danger testing device for gas-phase reaction system and using method thereof |
| CN102029134A (en) * | 2010-10-28 | 2011-04-27 | 中国石油化工股份有限公司 | Control method of tail oxygen content in oxygen-enriched oxidation process of cyclohexane |
| CN103007840B (en) * | 2012-11-08 | 2015-01-28 | 内蒙古伊泰煤制油有限责任公司 | Method for starting technological process of slurry bed reactor |
| CN103410728A (en) * | 2013-08-19 | 2013-11-27 | 葛洲坝易普力湖北昌泰民爆有限公司 | Safety device of screw pump for explosive material production |
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