CN105201810B - A kind of method of the quick lookup failure based on DCS system - Google Patents
A kind of method of the quick lookup failure based on DCS system Download PDFInfo
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- CN105201810B CN105201810B CN201510514515.8A CN201510514515A CN105201810B CN 105201810 B CN105201810 B CN 105201810B CN 201510514515 A CN201510514515 A CN 201510514515A CN 105201810 B CN105201810 B CN 105201810B
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- oxygen compressor
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Abstract
The present invention discloses a kind of method of the quick lookup failure based on DCS system, and the method for the lookup failure is in the following ways:Periodically the DCS signals of collection oxygen compressor input, judge whether the DCS signals of input reach the condition of Concatenate shut-down, are shut down if reaching DCS system and sending cutoff command control oxygen compressor, and the DCS signals of collection oxygen compressor input are continued executing with if being not reaching to;After the oxygen compressor is shut down, the last DCS signals for collecting are constant before remaining shut off, and search failure cause.Monitoring interface in the DCS system sets display normally or the icon of failure, wherein normal Icon Color is green, failure Icon Color is red.The method realizes that the color of the icon by indicating failure in the monitoring interface in DCS system intuitively judges failure cause, and the reason for searching failure cause is greatly reduced.
Description
Technical field
The present invention relates to technical field of automation in industry, and in particular to a kind of quick lookup failure based on DCS system
Method.
Background technology
Oxygen turbocompressor (hereinafter referred to as oxygen compressor) belongs to oxygen visual plant processed, rated power in oxygen making unit
4000KW, applies in ironmaking, steel-making industry, it is main provide in, low oxygen.
Oxygen compressor has multiple Concatenate shut-down conditions (such as each measurement point temperature, pressure, vibration), is made when oxygen compressor hinders for some reason
When shutting down, because Concatenate shut-down parameter is more, it is monitored using DCS control systems, checks relatively complicated during tendency chart.
In addition, ipc monitor picture gathered data cycle set is 1000ms, so it is possible to when host computer does not collect shutdown
Parameter value, so as to oxygen compressor disorderly closedown reason cannot be judged rapidly, increases the process time of failure problems.If cannot be extensive
Multiple machine halt trouble, considers for equipment safety, does not allow to start oxygen compressor, and the company that will have a strong impact on normally is supplied, and company is given birth to
Product causes tremendous influence.
The content of the invention
In view of this, the application provides a kind of method of the quick lookup failure based on DCS system, can be by DCS system
In monitoring interface in indicate the color of icon of failure and intuitively judge failure cause, lookup failure cause is greatly reduced
The reason for.
To solve above technical problem, the technical scheme that the present invention is provided is a kind of quick lookup event based on DCS system
The method of barrier, the method for the lookup failure is in the following ways:
Periodically the DCS signals of collection oxygen compressor input, judge whether the DCS signals of input reach the bar of Concatenate shut-down
Part, is shut down if reaching DCS system and sending cutoff command control oxygen compressor, and collection oxygen compressor input is continued executing with if being not reaching to
DCS signals;
Monitoring interface in the DCS system also includes display normally or the icon of failure, after the oxygen compressor is shut down, protects
The last DCS signals for collecting are constant before holding shutdown, and the color of the icon on monitoring interface in DCS system quickly judges
Be out of order reason, searches failure.
Further, the condition of the Concatenate shut-down is to interlock parameter not in normal range of operation, wherein parameter of interlocking
Including but not limited to each measurement point temperature of oxygen compressor, pressure, vibration parameters.
Further, the normal Icon Color is green, and failure Icon Color is red.
Further, the cycle of the DCS signals of collection oxygen compressor input is 1-2 seconds.
Further, after oxygen compressor is shut down, keep the last DCS signals for collecting constant until hand-reset.
The method of the quick lookup failure based on DCS system of the invention, has the advantages that:The present invention is by right
DCS signals keep the treatment of a period of time after oxygen compressor shutdown, and the shutdown represented by DCS signals is interlocked into parameter with icon
Mode be displayed on the monitoring interface in DCS system, so as to staff can by the monitoring interface in DCS system indicate
The color of the icon of failure intuitively judges failure cause, and the reason for searching failure cause is greatly reduced, and safeguards oxyen manutactory
The safety and steady operation of control system.
Brief description of the drawings
Fig. 1 is the method flow diagram of quick lookup failure of the present invention based on DCS system.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and specific real
The present invention is described in further detail to apply example.
Primary improvements of the invention are:In original DCS system structure, after judging that equipment interlocking is shut down, make
The fault-signal for collecting is kept for a period of time, and fault-signal is intuitively reacted in DCS in the way of icon color combining
On monitoring interface in system.
Referring to Fig. 1, described by the embodiment of the present invention be based on DCS system quick lookup failure method, the method
Realization use following steps:
S101, DCS system controller periodically gather the DCS signals of oxygen compressor input.Wherein it is possible to every 1-2 seconds
DCS signal for oxygen compressor input of collection.
S102, judge input DCS signals whether reach the condition of Concatenate shut-down, refer to if reaching DCS system and sending parking
Order control oxygen compressor is shut down, and the DCS signals of collection oxygen compressor input are continued executing with if being not reaching to.
The DCS signals that will be collected accordingly are converted into oxygen compressor and shut down involved interlocking parameter value, and by this value with
Whether the parameter threshold of the Concatenate shut-down for pre-setting is compared sees in normal range of operation, if not in normal work model
In enclosing, DCS system will send cutoff command control oxygen compressor and shut down.If in normal range (NR), illustrating equipment normal operation,
So DCS system continues executing with the DCS signals of collection oxygen compressor input.
After S103, oxygen compressor are shut down, the last DCS signals for collecting are constant before remaining shut off, and search failure cause.Its
In, the last DCS signals for collecting are constant until hand-reset before remaining shut off.
The monitoring interface of the DCS system described in the present embodiment also correspondingly sets display normally or the icon of failure,
Wherein normal Icon Color is green, and failure Icon Color is red.Shutdown represented by the display correspondence DCS signals of the icon
Interlocking parameter.If interlocking parameter is not in normal range of operation, what icon showed is exactly red, if interlocking parameter is normal
In the range of, equipment normal operation is illustrated, what icon showed is exactly green, therefore it may only be necessary to the color for watching icon can just be sentenced
It is disconnected whether failure.
Interlocking parameter described in the present embodiment includes but is not limited to each measurement point temperature of oxygen compressor, pressure, vibration etc.
Parameter.
Embodiment 1
Compressor one section outlet gas temperature stops because of 160 DEG C of (Concatenate shut-down threshold value is higher than 154.3 DEG C) overtemperatures.It is existing
DCS system send cutoff command parking after, if one section outlet temperature returns to operation enabled condition, the figure that monitoring interface shows
Target color returns to green by red, cannot thus judge to shut down reason from monitored picture.Failure is searched at present with regard to only
There is parking and then equipment goes manually to fix a breakdown one by one, lose time.
Embodiment 2
Apply the present invention to search oxygen compressor failure, compressor one section outlet gas temperature is because of 160 DEG C of (Concatenate shut-down thresholds
Value is higher than 154.3 DEG C) overtemperature parking.DCS system send cutoff command parking after, due to fault-signal be always maintained at it is constant,
So no matter how the temperature changes, the color of the icon that monitoring interface shows will be always maintained at red, until hand-reset.Skill
Art personnel can be quickly located by the color tips of icon and judge failure cause, so as to substantially reduce at failure problems
The reason time.
The above is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred embodiment is not construed as
Limitation of the invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of method of the quick lookup failure based on DCS system, it is characterised in that the method for the lookup failure use with
Under type:
Periodically the DCS signals of collection oxygen compressor input, judge whether the DCS signals of input reach the condition of Concatenate shut-down,
Shut down if reaching DCS system and sending cutoff command control oxygen compressor, collection oxygen compressor input is continued executing with if being not reaching to
DCS signals;
Monitoring interface in the DCS system also includes display normally or the icon of failure, after the oxygen compressor is shut down, keeps stopping
The last DCS signals for collecting are constant before machine, and the color of the icon on monitoring interface in DCS system quickly judges event
Barrier reason, searches failure.
2. the method for the described quick lookup failure based on DCS system according to claim 1, it is characterised in that described
The condition of locking machine is to interlock parameter not in normal range of operation, wherein interlocking parameter includes but is not limited to oxygen compressor and respectively measures
Point temperature, pressure, vibration parameters.
3. the method for the described quick lookup failure based on DCS system according to claim 2, it is characterised in that wherein just
Normal Icon Color is green, and failure Icon Color is red.
4. the method for the described quick lookup failure based on DCS system according to claim 1, it is characterised in that collection oxygen
The cycle of the DCS signals of press input is 1-2 seconds.
5. the method for the described quick lookup failure based on DCS system according to claim 1, it is characterised in that oxygen compressor
After shutdown, keep the last DCS signals for collecting constant until hand-reset.
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CN106351825A (en) * | 2016-08-30 | 2017-01-25 | 安徽三星化工有限责任公司 | Method for achieving judgment on machine pump running state and interlocking through relevant parameters |
CN107368053B (en) * | 2017-08-23 | 2021-01-12 | 上海云统信息科技有限公司 | Production line shutdown feedback system based on distributed control system |
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CN100386528C (en) * | 2003-09-27 | 2008-05-07 | 宝钢集团上海第一钢铁有限公司 | Method for forecasting surge in turbine compressor |
CN102913432B (en) * | 2012-11-08 | 2015-03-11 | 北京化工大学 | Reciprocating compressor fault diagnosis method based on dimensionless indexes |
CN102929248A (en) * | 2012-11-12 | 2013-02-13 | 莱芜钢铁集团有限公司 | Monitoring system used for blast furnace winding engine system and monitoring method thereof |
CN104061144A (en) * | 2013-03-21 | 2014-09-24 | 北京康吉森自动化设备技术有限责任公司 | Comprehensive compressor set controlling system and anti-surging controlling method thereof |
CN103823401B (en) * | 2014-03-05 | 2016-08-10 | 中国神华能源股份有限公司 | For the method and apparatus reported to the police in start-stop control system in unit level |
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